draft

Signed-off-by: LiuXiaoxuanPKU <lilyliupku@gmail.com>

.buildkite/lm-eval-harness/configs/DeepSeek-V2-Lite-Chat.yaml

@@ -1,3 +1,4 @@
+# For vllm script, with -t option (tensor parallel size).
 # bash ./run-lm-eval-gsm-vllm-baseline.sh -m deepseek-ai/DeepSeek-V2-Lite-Chat -b "auto" -l 1000 -f 5 -t 2
 model_name: "deepseek-ai/DeepSeek-V2-Lite-Chat"
 tasks:

.buildkite/lm-eval-harness/configs/Meta-Llama-3-70B-Instruct-FBGEMM-nonuniform.yaml

@@ -1,3 +1,4 @@
+# For hf script, without -t option (tensor parallel size).
 # bash .buildkite/lm-eval-harness/run-lm-eval-gsm-hf-baseline.sh -m nm-testing/Meta-Llama-3-70B-Instruct-FBGEMM-nonuniform -b auto -l 1000 -f 5
 model_name: "nm-testing/Meta-Llama-3-70B-Instruct-FBGEMM-nonuniform"
 tasks:

.buildkite/lm-eval-harness/configs/Meta-Llama-3-70B-Instruct.yaml

@@ -1,3 +1,4 @@
+# For hf script, without -t option (tensor parallel size).
 # bash .buildkite/lm-eval-harness/run-lm-eval-gsm-hf-baseline.sh -m meta-llama/Meta-Llama-3-70B-Instruct -b 32 -l 250 -f 5
 model_name: "meta-llama/Meta-Llama-3-70B-Instruct"
 tasks:

.buildkite/lm-eval-harness/configs/Meta-Llama-3-8B-Instruct-Channelwise-compressed-tensors.yaml

@@ -1,3 +1,4 @@
+# For vllm script, with -t option (tensor parallel size).
 # bash .buildkite/lm-eval-harness/run-lm-eval-gsm-vllm-baseline.sh -m nm-testing/Meta-Llama-3-8B-Instruct-W8A8-FP8-Channelwise-compressed-tensors -b auto -l 1000 -f 5 -t 1
 model_name: "nm-testing/Meta-Llama-3-8B-Instruct-W8A8-FP8-Channelwise-compressed-tensors"
 tasks:

.buildkite/lm-eval-harness/configs/Meta-Llama-3-8B-Instruct-FBGEMM-nonuniform.yaml

@@ -1,3 +1,4 @@
+# For vllm script, with -t option (tensor parallel size).
 # bash .buildkite/lm-eval-harness/run-lm-eval-gsm-vllm-baseline.sh -m nm-testing/Meta-Llama-3-8B-Instruct-FBGEMM-nonuniform -b auto -l 1000 -f 5 -t 1
 model_name: "nm-testing/Meta-Llama-3-8B-Instruct-FBGEMM-nonuniform"
 tasks:

.buildkite/lm-eval-harness/configs/Meta-Llama-3-8B-Instruct-FP8-compressed-tensors.yaml

@@ -1,3 +1,4 @@
+# For vllm script, with -t option (tensor parallel size).
 # bash .buildkite/lm-eval-harness/run-lm-eval-gsm-vllm-baseline.sh -m nm-testing/Meta-Llama-3-8B-FP8-compressed-tensors-test -b 32 -l 1000 -f 5 -t 1
 model_name: "nm-testing/Meta-Llama-3-8B-FP8-compressed-tensors-test"
 tasks:

.buildkite/lm-eval-harness/configs/Meta-Llama-3-8B-Instruct-FP8.yaml

@@ -1,3 +1,4 @@
+# For vllm script, with -t option (tensor parallel size).
 # bash .buildkite/lm-eval-harness/run-lm-eval-gsm-vllm-baseline.sh -m neuralmagic/Meta-Llama-3-8B-Instruct-FP8 -b 32 -l 250 -f 5 -t 1
 model_name: "neuralmagic/Meta-Llama-3-8B-Instruct-FP8"
 tasks:

.buildkite/lm-eval-harness/configs/Meta-Llama-3-8B-Instruct-INT8-compressed-tensors-asym.yaml

@@ -1,3 +1,4 @@
+# For vllm script, with -t option (tensor parallel size).
 # bash .buildkite/lm-eval-harness/run-lm-eval-gsm-vllm-baseline.sh -m nm-testing/Meta-Llama-3-8B-Instruct-W8-Channel-A8-Dynamic-Asym-Per-Token-Test -b "auto" -l 250 -f 5 -t 1
 model_name: "nm-testing/Meta-Llama-3-8B-Instruct-W8-Channel-A8-Dynamic-Asym-Per-Token-Test"
 tasks:

.buildkite/lm-eval-harness/configs/Meta-Llama-3-8B-Instruct-INT8-compressed-tensors.yaml

@@ -1,3 +1,4 @@
+# For vllm script, with -t option (tensor parallel size).
 # bash .buildkite/lm-eval-harness/run-lm-eval-gsm-vllm-baseline.sh -m nm-testing/Meta-Llama-3-8B-Instruct-W8-Channel-A8-Dynamic-Per-Token-Test -b "auto" -l 250 -f 5 -t 1
 model_name: "nm-testing/Meta-Llama-3-8B-Instruct-W8-Channel-A8-Dynamic-Per-Token-Test"
 tasks:

.buildkite/lm-eval-harness/configs/Meta-Llama-3-8B-Instruct-nonuniform-compressed-tensors.yaml

@@ -1,3 +1,4 @@
+# For vllm script, with -t option (tensor parallel size).
 # bash .buildkite/lm-eval-harness/run-lm-eval-gsm-vllm-baseline.sh -m nm-testing/Meta-Llama-3-8B-Instruct-nonuniform-test -b auto -l 1000 -f 5 -t 1
 model_name: "nm-testing/Meta-Llama-3-8B-Instruct-nonuniform-test"
 tasks:

.buildkite/lm-eval-harness/configs/Meta-Llama-3-8B-Instruct.yaml

@@ -1,4 +1,5 @@
-# bash .buildkite/lm-eval-harness/run-lm-eval-gsm-hf-baseline.sh -m meta-llama/Meta-Llama-3-8B-Instruct -b 32 -l 250 -f 5 -t 1
+# For hf script, without -t option (tensor parallel size).
+# bash .buildkite/lm-eval-harness/run-lm-eval-gsm-hf-baseline.sh -m meta-llama/Meta-Llama-3-8B-Instruct -b 32 -l 250 -f 5
 model_name: "meta-llama/Meta-Llama-3-8B-Instruct"
 tasks:
 - name: "gsm8k"

.buildkite/lm-eval-harness/configs/Meta-Llama-3-8B-QQQ.yaml

@@ -1,3 +1,4 @@
+# For vllm script, with -t option (tensor parallel size).
 # bash .buildkite/lm-eval-harness/run-lm-eval-gsm-vllm-baseline.sh -m HandH1998/QQQ-Llama-3-8b-g128 -b 32 -l 1000 -f 5 -t 1
 model_name: "HandH1998/QQQ-Llama-3-8b-g128"
 tasks:

.buildkite/lm-eval-harness/configs/Meta-Llama-3.2-1B-Instruct-INT8-compressed-tensors.yaml

@@ -1,3 +1,4 @@
+# For vllm script, with -t option (tensor parallel size).
 # bash .buildkite/lm-eval-harness/run-lm-eval-gsm-vllm-baseline.sh -m neuralmagic/Llama-3.2-1B-Instruct-quantized.w8a8 -b "auto" -l 1000 -f 5 -t 1
 model_name: "neuralmagic/Llama-3.2-1B-Instruct-quantized.w8a8"
 tasks:

.buildkite/lm-eval-harness/configs/Minitron-4B-Base-FP8.yaml

@@ -1,3 +1,4 @@
+# For vllm script, with -t option (tensor parallel size).
 # bash .buildkite/lm-eval-harness/run-lm-eval-gsm-vllm-baseline.sh -m mgoin/Minitron-4B-Base-FP8 -b auto -l 1000 -f 5 -t 1
 model_name: "mgoin/Minitron-4B-Base-FP8"
 tasks:

.buildkite/lm-eval-harness/configs/Mixtral-8x22B-Instruct-v0.1-FP8-Dynamic.yaml

@@ -1,3 +1,4 @@
+# For vllm script, with -t option (tensor parallel size).
 # bash ./run-lm-eval-gsm-vllm-baseline.sh -m neuralmagic/Mixtral-8x22B-Instruct-v0.1-FP8-dynamic -b "auto" -l 250 -f 5 -t 8
 model_name: "neuralmagic/Mixtral-8x22B-Instruct-v0.1-FP8-dynamic"
 tasks:

.buildkite/lm-eval-harness/configs/Mixtral-8x7B-Instruct-v0.1-FP8.yaml

@@ -1,3 +1,4 @@
+# For vllm script, with -t option (tensor parallel size).
 # bash ./run-lm-eval-gsm-vllm-baseline.sh -m neuralmagic/Mixtral-8x7B-Instruct-v0.1-FP8 -b "auto" -l 250 -f 5 -t 4
 model_name: "neuralmagic/Mixtral-8x7B-Instruct-v0.1-FP8"
 tasks:

.buildkite/lm-eval-harness/configs/Mixtral-8x7B-Instruct-v0.1.yaml

@@ -1,4 +1,5 @@
-# bash .buildkite/lm-eval-harness/run-lm-eval-gsm-hf-baseline.sh -m neuralmagic/Mixtral-8x7B-Instruct-v0.1 -b 32 -l 250 -f 5 -t 4
+# For hf script, without -t option (tensor parallel size).
+# bash .buildkite/lm-eval-harness/run-lm-eval-gsm-hf-baseline.sh -m neuralmagic/Mixtral-8x7B-Instruct-v0.1 -b 32 -l 250 -f 5
 model_name: "mistralai/Mixtral-8x7B-Instruct-v0.1"
 tasks:
 - name: "gsm8k"

.buildkite/lm-eval-harness/configs/Qwen1.5-MoE-W4A16-compressed-tensors.yaml

@@ -0,0 +1,12 @@
+# For vllm script, with -t option (tensor parallel size).
+# bash .buildkite/lm-eval-harness/run-lm-eval-gsm-vllm-baseline.sh -m nm-testing/Qwen1.5-MoE-A2.7B-Chat-quantized.w4a16 -b auto -l 1319 -f 5 -t 1
+model_name: "nm-testing/Qwen1.5-MoE-A2.7B-Chat-quantized.w4a16"
+tasks:
+- name: "gsm8k"
+  metrics:
+  - name: "exact_match,strict-match"
+    value: 0.30
+  - name: "exact_match,flexible-extract"
+    value: 0.465
+limit: 1319
+num_fewshot: 5

.buildkite/lm-eval-harness/configs/Qwen2-1.5B-Instruct-FP8W8.yaml

@@ -1,3 +1,4 @@
+# For vllm script, with -t option (tensor parallel size).
 # bash .buildkite/lm-eval-harness/run-lm-eval-gsm-vllm-baseline.sh -m nm-testing/Qwen2-1.5B-Instruct-FP8W8 -b auto -l 1000 -f 5 -t 1
 model_name: "nm-testing/Qwen2-1.5B-Instruct-FP8W8"
 tasks:

.buildkite/lm-eval-harness/configs/Qwen2-1.5B-Instruct-INT8-compressed-tensors.yaml

@@ -1,3 +1,4 @@
+# For vllm script, with -t option (tensor parallel size).
 # bash .buildkite/lm-eval-harness/run-lm-eval-gsm-vllm-baseline.sh -m neuralmagic/Qwen2-1.5B-Instruct-quantized.w8a8 -b "auto" -l 1000 -f 5 -t 1
 model_name: "neuralmagic/Qwen2-1.5B-Instruct-quantized.w8a8"
 tasks:

.buildkite/lm-eval-harness/configs/Qwen2-1.5B-Instruct-W8A16-compressed-tensors.yaml

@@ -1,3 +1,4 @@
+# For vllm script, with -t option (tensor parallel size).
 # bash .buildkite/lm-eval-harness/run-lm-eval-gsm-vllm-baseline.sh -m nm-testing/Qwen2-1.5B-Instruct-W8A16-Channelwise -b "auto" -l 1000 -f 5 -t 1
 model_name: "nm-testing/Qwen2-1.5B-Instruct-W8A16-Channelwise"
 tasks:

.buildkite/lm-eval-harness/configs/Qwen2-57B-A14-Instruct.yaml

@@ -1,3 +1,4 @@
+# For vllm script, with -t option (tensor parallel size).
 # bash ./run-lm-eval-gsm-vllm-baseline.sh -m Qwen/Qwen2-57B-A14B-Instruct -b "auto" -l 250 -f 5 -t 4
 model_name: "Qwen/Qwen2-57B-A14B-Instruct"
 tasks:

.buildkite/lm-eval-harness/configs/SparseLlama3.1_2of4_fp8_compressed.yaml

@@ -1,3 +1,4 @@
+# For vllm script, with -t option (tensor parallel size).
 # bash ./run-lm-eval-gsm-vllm-baseline.sh -m nm-testing/SparseLlama-3.1-8B-gsm8k-pruned.2of4-chnl_wts_per_tok_dyn_act_fp8-BitM -b "auto" -t 2
 model_name: "nm-testing/SparseLlama-3.1-8B-gsm8k-pruned.2of4-chnl_wts_per_tok_dyn_act_fp8-BitM"
 tasks:

.buildkite/lm-eval-harness/configs/models-small.txt

@@ -4,7 +4,7 @@ Meta-Llama-3.2-1B-Instruct-INT8-compressed-tensors.yaml
 Meta-Llama-3-8B-Instruct-INT8-compressed-tensors-asym.yaml
 Meta-Llama-3-8B-Instruct-nonuniform-compressed-tensors.yaml
 Meta-Llama-3-8B-Instruct-Channelwise-compressed-tensors.yaml
-Minitron-4B-Base-FP8.yaml
+Qwen1.5-MoE-W4A16-compressed-tensors.yaml
 Qwen2-1.5B-Instruct-INT8-compressed-tensors.yaml
 Qwen2-1.5B-Instruct-FP8W8.yaml
 Meta-Llama-3-8B-QQQ.yaml

.buildkite/lm-eval-harness/test_lm_eval_correctness.py

@@ -16,7 +16,7 @@ import numpy
 import pytest
 import yaml
 
-RTOL = 0.05
+RTOL = 0.08
 TEST_DATA_FILE = os.environ.get(
     "LM_EVAL_TEST_DATA_FILE",
     ".buildkite/lm-eval-harness/configs/Meta-Llama-3-8B-Instruct.yaml")

.buildkite/nightly-benchmarks/scripts/run-performance-benchmarks.sh

@@ -10,15 +10,24 @@ set -x
 set -o pipefail
 
 check_gpus() {
-  # check the number of GPUs and GPU type.
-  declare -g gpu_count=$(nvidia-smi --list-gpus | wc -l)
+  if command -v nvidia-smi; then
+    # check the number of GPUs and GPU type.
+    declare -g gpu_count=$(nvidia-smi --list-gpus | wc -l)
+  elif command -v amd-smi; then
+    declare -g gpu_count=$(amd-smi list | grep 'GPU' | wc -l)
+  fi
+
   if [[ $gpu_count -gt 0 ]]; then
     echo "GPU found."
   else
     echo "Need at least 1 GPU to run benchmarking."
     exit 1
   fi
-  declare -g gpu_type=$(nvidia-smi --query-gpu=name --format=csv,noheader | awk '{print $2}')
+  if command -v nvidia-smi; then
+    declare -g gpu_type=$(nvidia-smi --query-gpu=name --format=csv,noheader | awk '{print $2}')
+  elif command -v amd-smi; then
+    declare -g gpu_type=$(amd-smi static -g 0 -a | grep 'MARKET_NAME' | awk '{print $2}')
+  fi
   echo "GPU type is $gpu_type"
 }
 
@@ -90,9 +99,15 @@ kill_gpu_processes() {
 
 
   # wait until GPU memory usage smaller than 1GB
-  while [ "$(nvidia-smi --query-gpu=memory.used --format=csv,noheader,nounits | head -n 1)" -ge 1000 ]; do
-    sleep 1
-  done
+  if command -v nvidia-smi; then
+    while [ "$(nvidia-smi --query-gpu=memory.used --format=csv,noheader,nounits | head -n 1)" -ge 1000 ]; do
+      sleep 1
+    done
+  elif command -v amd-smi; then
+    while [ "$(amd-smi metric -g 0 | grep 'USED_VRAM' | awk '{print $2}')" -ge 1000 ]; do
+      sleep 1
+    done
+  fi
 
   # remove vllm config file
   rm -rf ~/.config/vllm

.buildkite/release-pipeline.yaml

@@ -3,10 +3,10 @@ steps:
     agents:
       queue: cpu_queue_postmerge
     commands:
-      - "DOCKER_BUILDKIT=1 docker build --build-arg max_jobs=16 --build-arg USE_SCCACHE=1 --build-arg GIT_REPO_CHECK=1 --build-arg CUDA_VERSION=12.4.0 --tag vllm-ci:build-image --target build --progress plain ."
+      - "DOCKER_BUILDKIT=1 docker build --build-arg max_jobs=16 --build-arg USE_SCCACHE=1 --build-arg GIT_REPO_CHECK=1 --build-arg CUDA_VERSION=12.4.0 --tag vllm-ci:build-image --target build --progress plain -f docker/Dockerfile ."
       - "mkdir artifacts"
       - "docker run --rm -v $(pwd)/artifacts:/artifacts_host vllm-ci:build-image bash -c 'cp -r dist /artifacts_host && chmod -R a+rw /artifacts_host'"
-      - "bash .buildkite/upload-wheels.sh"
+      - "bash .buildkite/scripts/upload-wheels.sh"
     env:
       DOCKER_BUILDKIT: "1"
 
@@ -14,10 +14,10 @@ steps:
     agents:
       queue: cpu_queue_postmerge
     commands:
-      - "DOCKER_BUILDKIT=1 docker build --build-arg max_jobs=16 --build-arg USE_SCCACHE=1 --build-arg GIT_REPO_CHECK=1 --build-arg CUDA_VERSION=12.1.0 --tag vllm-ci:build-image --target build --progress plain ."
+      - "DOCKER_BUILDKIT=1 docker build --build-arg max_jobs=16 --build-arg USE_SCCACHE=1 --build-arg GIT_REPO_CHECK=1 --build-arg CUDA_VERSION=12.1.0 --tag vllm-ci:build-image --target build --progress plain -f docker/Dockerfile ."
       - "mkdir artifacts"
       - "docker run --rm -v $(pwd)/artifacts:/artifacts_host vllm-ci:build-image bash -c 'cp -r dist /artifacts_host && chmod -R a+rw /artifacts_host'"
-      - "bash .buildkite/upload-wheels.sh"
+      - "bash .buildkite/scripts/upload-wheels.sh"
     env:
       DOCKER_BUILDKIT: "1"
 
@@ -31,10 +31,10 @@ steps:
     agents:
       queue: cpu_queue_postmerge
     commands:
-      - "DOCKER_BUILDKIT=1 docker build --build-arg max_jobs=16 --build-arg USE_SCCACHE=1 --build-arg GIT_REPO_CHECK=1 --build-arg CUDA_VERSION=11.8.0 --tag vllm-ci:build-image --target build --progress plain ."
+      - "DOCKER_BUILDKIT=1 docker build --build-arg max_jobs=16 --build-arg USE_SCCACHE=1 --build-arg GIT_REPO_CHECK=1 --build-arg CUDA_VERSION=11.8.0 --tag vllm-ci:build-image --target build --progress plain -f docker/Dockerfile ."
       - "mkdir artifacts"
       - "docker run --rm -v $(pwd)/artifacts:/artifacts_host vllm-ci:build-image bash -c 'cp -r dist /artifacts_host && chmod -R a+rw /artifacts_host'"
-      - "bash .buildkite/upload-wheels.sh"
+      - "bash .buildkite/scripts/upload-wheels.sh"
     env:
       DOCKER_BUILDKIT: "1"
 
@@ -48,7 +48,7 @@ steps:
       queue: cpu_queue_postmerge
     commands:
       - "aws ecr-public get-login-password --region us-east-1 | docker login --username AWS --password-stdin public.ecr.aws/q9t5s3a7"
-      - "DOCKER_BUILDKIT=1 docker build --build-arg max_jobs=16 --build-arg USE_SCCACHE=1 --build-arg GIT_REPO_CHECK=1 --build-arg CUDA_VERSION=12.4.0 --tag public.ecr.aws/q9t5s3a7/vllm-release-repo:$BUILDKITE_COMMIT --target vllm-openai --progress plain ."
+      - "DOCKER_BUILDKIT=1 docker build --build-arg max_jobs=16 --build-arg USE_SCCACHE=1 --build-arg GIT_REPO_CHECK=1 --build-arg CUDA_VERSION=12.4.0 --tag public.ecr.aws/q9t5s3a7/vllm-release-repo:$BUILDKITE_COMMIT --target vllm-openai --progress plain -f docker/Dockerfile ."
       - "docker push public.ecr.aws/q9t5s3a7/vllm-release-repo:$BUILDKITE_COMMIT"
 
   - label: "Build and publish TPU release image"
@@ -57,7 +57,7 @@ steps:
     agents:
       queue: tpu_queue_postmerge
     commands:
-      - "DOCKER_BUILDKIT=1 docker build --build-arg max_jobs=16 --build-arg USE_SCCACHE=1 --build-arg GIT_REPO_CHECK=1 --tag vllm/vllm-tpu:nightly --tag vllm/vllm-tpu:$BUILDKITE_COMMIT --progress plain -f Dockerfile.tpu ."
+      - "DOCKER_BUILDKIT=1 docker build --build-arg max_jobs=16 --build-arg USE_SCCACHE=1 --build-arg GIT_REPO_CHECK=1 --tag vllm/vllm-tpu:nightly --tag vllm/vllm-tpu:$BUILDKITE_COMMIT --progress plain -f docker/Dockerfile.tpu ."
       - "docker push vllm/vllm-tpu:nightly"
       - "docker push vllm/vllm-tpu:$BUILDKITE_COMMIT"
     plugins:
@@ -82,7 +82,22 @@ steps:
       queue: cpu_queue_postmerge
     commands:
       - "aws ecr-public get-login-password --region us-east-1 | docker login --username AWS --password-stdin public.ecr.aws/q9t5s3a7"
-      - "DOCKER_BUILDKIT=1 docker build --build-arg max_jobs=16 --build-arg GIT_REPO_CHECK=1 --tag public.ecr.aws/q9t5s3a7/vllm-cpu-release-repo:$(buildkite-agent meta-data get release-version) --tag public.ecr.aws/q9t5s3a7/vllm-cpu-release-repo:latest --progress plain --target vllm-openai -f Dockerfile.cpu ."
+      - "DOCKER_BUILDKIT=1 docker build --build-arg max_jobs=16 --build-arg GIT_REPO_CHECK=1 --tag public.ecr.aws/q9t5s3a7/vllm-cpu-release-repo:$(buildkite-agent meta-data get release-version) --tag public.ecr.aws/q9t5s3a7/vllm-cpu-release-repo:latest --progress plain --target vllm-openai -f docker/Dockerfile.cpu ."
       - "docker push public.ecr.aws/q9t5s3a7/vllm-cpu-release-repo:$(buildkite-agent meta-data get release-version)"
     env:
       DOCKER_BUILDKIT: "1"
+
+  - block: "Build Neuron release image"
+    key: block-neuron-release-image-build
+    depends_on: ~
+
+  - label: "Build and publish Neuron release image"
+    depends_on: block-neuron-release-image-build
+    agents:
+      queue: neuron-postmerge
+    commands:
+      - "aws ecr-public get-login-password --region us-east-1 | docker login --username AWS --password-stdin public.ecr.aws/q9t5s3a7"
+      - "DOCKER_BUILDKIT=1 docker build --build-arg max_jobs=16 --build-arg GIT_REPO_CHECK=1 --tag public.ecr.aws/q9t5s3a7/vllm-neuron-release-repo:$(buildkite-agent meta-data get release-version) --tag public.ecr.aws/q9t5s3a7/vllm-neuron-release-repo:latest --progress plain -f docker/Dockerfile.neuron ."
+      - "docker push public.ecr.aws/q9t5s3a7/vllm-neuron-release-repo:$(buildkite-agent meta-data get release-version)"
+    env:
+      DOCKER_BUILDKIT: "1"

.buildkite/scripts/hardware_ci/run-amd-test.sh

@@ -98,6 +98,13 @@ if [[ $commands == *" kernels "* ]]; then
   --ignore=kernels/test_machete_mm.py \
   --ignore=kernels/test_mha_attn.py \
   --ignore=kernels/test_block_fp8.py \
+  --ignore=kernels/test_cutlass_moe.py \
+  --ignore=kernels/test_mamba_ssm_ssd.py \
+  --ignore=kernels/test_attention.py \
+  --ignore=kernels/test_block_int8.py \
+  --ignore=kernels/test_fused_quant_layernorm.py \
+  --ignore=kernels/test_int8_kernel.py \
+  --ignore=kernels/test_triton_moe_ptpc_fp8.py \
   --ignore=kernels/test_permute_cols.py"
 fi
 
@@ -105,19 +112,33 @@ fi
 if [[ $commands == *" entrypoints/openai "* ]]; then
   commands=${commands//" entrypoints/openai "/" entrypoints/openai \
   --ignore=entrypoints/openai/test_audio.py \
-  --ignore=entrypoints/openai/test_chat.py \
   --ignore=entrypoints/openai/test_shutdown.py \
   --ignore=entrypoints/openai/test_completion.py \
   --ignore=entrypoints/openai/test_sleep.py \
   --ignore=entrypoints/openai/test_models.py \
+  --ignore=entrypoints/openai/test_lora_adapters.py \
+  --ignore=entrypoints/openai/test_return_tokens_as_ids.py \
+  --ignore=entrypoints/openai/test_root_path.py \
+  --ignore=entrypoints/openai/test_tokenization.py \
   --ignore=entrypoints/openai/test_prompt_validation.py "}
 fi
 
 #ignore certain Entrypoints/llm tests
-if [[ $commands == *" && pytest -v -s entrypoints/llm/test_guided_generate.py"* ]]; then
-  commands=${commands//" && pytest -v -s entrypoints/llm/test_guided_generate.py"/" "}
+if [[ $commands == *" entrypoints/llm "* ]]; then
+  commands=${commands//" entrypoints/llm "/" entrypoints/llm \
+  --ignore=entrypoints/llm/test_chat.py \
+  --ignore=entrypoints/llm/test_accuracy.py \
+  --ignore=entrypoints/llm/test_init.py \
+  --ignore=entrypoints/llm/test_generate_multiple_loras.py \
+  --ignore=entrypoints/llm/test_prompt_validation.py "}
 fi
 
+#Obsolete currently
+##ignore certain Entrypoints/llm tests
+#if [[ $commands == *" && pytest -v -s entrypoints/llm/test_guided_generate.py"* ]]; then
+#  commands=${commands//" && pytest -v -s entrypoints/llm/test_guided_generate.py"/" "}
+#fi
+
 # --ignore=entrypoints/openai/test_encoder_decoder.py \
 # --ignore=entrypoints/openai/test_embedding.py \
 # --ignore=entrypoints/openai/test_oot_registration.py

.buildkite/scripts/hardware_ci/run-cpu-test-ppc64le.sh

@@ -0,0 +1,45 @@
+#!/bin/bash
+
+# This script build the CPU docker image and run the offline inference inside the container.
+# It serves a sanity check for compilation and basic model usage.
+set -ex
+
+# Setup cleanup
+remove_docker_container() {
+  if [[ -n "$container_id" ]]; then
+      podman rm -f "$container_id" || true
+  fi
+  podman system prune -f
+}
+trap remove_docker_container EXIT
+remove_docker_container
+
+# Try building the docker image
+podman build -t cpu-test-ubi9-ppc -f docker/Dockerfile.ppc64le .
+
+# Run the image
+container_id=$(podman run -itd --entrypoint /bin/bash -v /tmp/:/root/.cache/huggingface --privileged=true --network host -e HF_TOKEN cpu-test-ubi9-ppc)
+
+function cpu_tests() {
+
+  # offline inference
+  podman exec -it "$container_id" bash -c "
+    set -e
+    python3 examples/offline_inference/basic/generate.py --model facebook/opt-125m"
+
+  # Run basic model test
+  podman exec -it "$container_id" bash -c "
+    set -e
+    pip install pytest pytest-asyncio einops peft Pillow soundfile transformers_stream_generator matplotlib
+    pip install sentence-transformers datamodel_code_generator
+    pytest -v -s tests/models/embedding/language/test_cls_models.py::test_classification_models[float-jason9693/Qwen2.5-1.5B-apeach]
+    pytest -v -s tests/models/embedding/language/test_embedding.py::test_models[half-BAAI/bge-base-en-v1.5]
+    pytest -v -s tests/models/encoder_decoder/language -m cpu_model"
+}
+
+# All of CPU tests are expected to be finished less than 40 mins.
+
+export container_id
+export -f cpu_tests
+timeout 40m bash -c cpu_tests
+

.buildkite/scripts/hardware_ci/run-cpu-test-s390x.sh

@@ -10,5 +10,4 @@ trap remove_docker_container EXIT
 remove_docker_container
 
 # Try building the docker image
-docker build -t cpu-test -f Dockerfile.ppc64le .
-
+docker build -t cpu-test -f docker/Dockerfile.s390x .

.buildkite/scripts/hardware_ci/run-cpu-test.sh

@@ -18,8 +18,8 @@ trap remove_docker_container EXIT
 remove_docker_container
 
 # Try building the docker image
-numactl -C "$CORE_RANGE" -N "$NUMA_NODE" docker build --tag cpu-test-"$BUILDKITE_BUILD_NUMBER" --target vllm-test -f Dockerfile.cpu .
-numactl -C "$CORE_RANGE" -N "$NUMA_NODE" docker build --build-arg VLLM_CPU_DISABLE_AVX512="true" --tag cpu-test-"$BUILDKITE_BUILD_NUMBER"-avx2 --target vllm-test -f Dockerfile.cpu .
+numactl -C "$CORE_RANGE" -N "$NUMA_NODE" docker build --tag cpu-test-"$BUILDKITE_BUILD_NUMBER" --target vllm-test -f docker/Dockerfile.cpu .
+numactl -C "$CORE_RANGE" -N "$NUMA_NODE" docker build --build-arg VLLM_CPU_DISABLE_AVX512="true" --tag cpu-test-"$BUILDKITE_BUILD_NUMBER"-avx2 --target vllm-test -f docker/Dockerfile.cpu .
 
 # Run the image, setting --shm-size=4g for tensor parallel.
 docker run -itd --entrypoint /bin/bash -v ~/.cache/huggingface:/root/.cache/huggingface --cpuset-cpus="$CORE_RANGE"  \

.buildkite/scripts/hardware_ci/run-gh200-test.sh

@@ -9,6 +9,7 @@ python3 use_existing_torch.py
 
 # Try building the docker image
 DOCKER_BUILDKIT=1 docker build . \
+  --file docker/Dockerfile \
   --target vllm-openai \
   --platform "linux/arm64" \
   -t gh200-test \

.buildkite/scripts/hardware_ci/run-hpu-test.sh

@@ -5,7 +5,7 @@
 set -ex
 
 # Try building the docker image
-docker build -t hpu-test-env -f Dockerfile.hpu .
+docker build -t hpu-test-env -f docker/Dockerfile.hpu .
 
 # Setup cleanup
 # certain versions of HPU software stack have a bug that can

.buildkite/scripts/hardware_ci/run-neuron-test.sh

@@ -35,7 +35,7 @@ else
     date "+%s" > /tmp/neuron-docker-build-timestamp
 fi
 
-docker build -t "${image_name}" -f Dockerfile.neuron .
+docker build -t "${image_name}" -f docker/Dockerfile.neuron .
 
 # Setup cleanup
 remove_docker_container() {

.buildkite/scripts/hardware_ci/run-tpu-v1-test.sh

@@ -1,9 +1,9 @@
 #!/bin/bash
 
-set -e
+set -xue
 
 # Build the docker image.
-docker build -f Dockerfile.tpu -t vllm-tpu .
+docker build -f docker/Dockerfile.tpu -t vllm-tpu .
 
 # Set up cleanup.
 remove_docker_container() { docker rm -f tpu-test || true; }
@@ -17,10 +17,15 @@ source /etc/environment
 docker run --privileged --net host --shm-size=16G -it \
     -e "HF_TOKEN=$HF_TOKEN" --name tpu-test \
     vllm-tpu /bin/bash -c "python3 -m pip install git+https://github.com/thuml/depyf.git \
-    && python3 -m pip install pytest \
+    && python3 -m pip install pytest pytest-asyncio tpu-info \
     && python3 -m pip install lm_eval[api]==0.4.4 \
+    && export VLLM_XLA_CACHE_PATH= \
     && export VLLM_USE_V1=1 \
     && export VLLM_XLA_CHECK_RECOMPILATION=1 \
+    && echo HARDWARE \
+    && tpu-info \
+    && echo TEST_0 \
+    && pytest -v -s /workspace/vllm/tests/v1/tpu/test_perf.py \
     && echo TEST_1 \
     && pytest -v -s /workspace/vllm/tests/tpu/test_compilation.py \
     && echo TEST_2 \
@@ -34,7 +39,15 @@ docker run --privileged --net host --shm-size=16G -it \
     && echo TEST_6 \
     && pytest -s -v /workspace/vllm/tests/v1/tpu/worker/test_tpu_model_runner.py \
     && echo TEST_7 \
-    && pytest -s -v /workspace/vllm/tests/v1/tpu/test_sampler.py" \
+    && pytest -s -v /workspace/vllm/tests/v1/tpu/test_sampler.py \
+    && echo TEST_8 \
+    && pytest -s -v /workspace/vllm/tests/v1/tpu/test_topk_topp_sampler.py \
+    && echo TEST_9 \
+    && pytest -s -v /workspace/vllm/tests/v1/tpu/test_multimodal.py \
+    && echo TEST_10 \
+    && pytest -s -v /workspace/vllm/tests/v1/tpu/test_pallas.py \
+    && echo TEST_11 \
+    && pytest -s -v /workspace/vllm/tests/v1/entrypoints/llm/test_struct_output_generate.py" \
 
 
 # TODO: This test fails because it uses RANDOM_SEED sampling

.buildkite/scripts/hardware_ci/run-xpu-test.sh

@@ -8,7 +8,7 @@ image_name="xpu/vllm-ci:${BUILDKITE_COMMIT}"
 container_name="xpu_${BUILDKITE_COMMIT}_$(tr -dc A-Za-z0-9 < /dev/urandom | head -c 10; echo)"
 
 # Try building the docker image
-docker build -t ${image_name} -f Dockerfile.xpu .
+docker build -t ${image_name} -f docker/Dockerfile.xpu .
 
 # Setup cleanup
 remove_docker_container() { 

.buildkite/scripts/run-benchmarks.sh

@@ -5,8 +5,8 @@
 set -ex
 set -o pipefail
 
-# cd into parent directory of this file
-cd "$(dirname "${BASH_SOURCE[0]}")/.."
+# cd 2 levels into the working directory
+cd "$(dirname "${BASH_SOURCE[0]}")/../.."
 
 (which wget && which curl) || (apt-get update && apt-get install -y wget curl)
 

.buildkite/scripts/run-multi-node-test.sh

@@ -3,7 +3,7 @@
 set -euox pipefail
 
 if [[ $# -lt 4 ]]; then
-    echo "Usage: .buildkite/run-multi-node-test.sh WORKING_DIR NUM_NODES NUM_GPUS DOCKER_IMAGE COMMAND1 COMMAND2 ... COMMANDN"
+    echo "Usage: .buildkite/scripts/run-multi-node-test.sh WORKING_DIR NUM_NODES NUM_GPUS DOCKER_IMAGE COMMAND1 COMMAND2 ... COMMANDN"
     exit 1
 fi
 

.buildkite/test-pipeline.yaml

@@ -8,6 +8,7 @@
 # Documentation
 # label(str): the name of the test. emoji allowed.
 # fast_check(bool): whether to run this on each commit on fastcheck pipeline.
+# torch_nightly(bool): whether to run this on vllm against torch nightly pipeline.
 # fast_check_only(bool): run this test on fastcheck pipeline only
 # optional(bool): never run this test by default (i.e. need to unblock manually) unless it's scheduled nightly run.
 # command(str): the single command to run for tests. incompatible with commands.
@@ -70,6 +71,7 @@ steps:
 - label: Basic Correctness Test # 30min
   #mirror_hardwares: [amd]
   fast_check: true
+  torch_nightly: true
   source_file_dependencies:
   - vllm/
   - tests/basic_correctness/test_basic_correctness
@@ -104,7 +106,8 @@ steps:
 - label: Entrypoints Test # 40min
   working_dir: "/vllm-workspace/tests"
   fast_check: true
-  mirror_hardwares: [amd]
+  torch_nightly: true
+  #mirror_hardwares: [amd]
   source_file_dependencies:
   - vllm/
   - tests/entrypoints/llm
@@ -118,7 +121,7 @@ steps:
   - pytest -v -s entrypoints/llm/test_generate.py # it needs a clean process
   - pytest -v -s entrypoints/llm/test_generate_multiple_loras.py # it needs a clean process
   - VLLM_USE_V1=0 pytest -v -s entrypoints/llm/test_guided_generate.py # it needs a clean process
-  - pytest -v -s entrypoints/openai --ignore=entrypoints/openai/test_oot_registration.py  --ignore=entrypoints/openai/test_chat_with_tool_reasoning.py --ignore=entrypoints/openai/correctness/
+  - pytest -v -s entrypoints/openai --ignore=entrypoints/openai/test_oot_registration.py  --ignore=entrypoints/openai/test_chat_with_tool_reasoning.py --ignore=entrypoints/openai/correctness/ --ignore=entrypoints/openai/test_openai_schema.py
   - pytest -v -s entrypoints/test_chat_utils.py
   - VLLM_USE_V1=0 pytest -v -s entrypoints/offline_mode # Needs to avoid interference with other tests
 
@@ -155,6 +158,7 @@ steps:
   - popd
 
 - label: Metrics, Tracing Test # 10min
+  mirror_hardwares: [amd]
   num_gpus: 2
   source_file_dependencies:
   - vllm/
@@ -162,18 +166,13 @@ steps:
   - tests/tracing
   commands:
   - pytest -v -s metrics
-  - "pip install \
-      'opentelemetry-sdk>=1.26.0,<1.27.0' \
-      'opentelemetry-api>=1.26.0,<1.27.0' \
-      'opentelemetry-exporter-otlp>=1.26.0,<1.27.0' \
-      'opentelemetry-semantic-conventions-ai>=0.4.1,<0.5.0'"
   - pytest -v -s tracing
 
 ##### fast check tests  #####
 #####  1 GPU test  #####
 
 - label: Regression Test # 5min
-  mirror_hardwares: [amd]
+  #mirror_hardwares: [amd]
   source_file_dependencies:
   - vllm/
   - tests/test_regression
@@ -204,12 +203,13 @@ steps:
   commands:
     # split the test to avoid interference
     - pytest -v -s v1/core
-    - pytest -v -s v1/entrypoints
     - pytest -v -s v1/engine
     - pytest -v -s v1/entrypoints
     - pytest -v -s v1/sample
     - pytest -v -s v1/worker
     - pytest -v -s v1/structured_output
+    - pytest -v -s v1/spec_decode
+    - pytest -v -s v1/test_serial_utils.py
     - pytest -v -s v1/test_stats.py
     - pytest -v -s v1/test_utils.py
     - pytest -v -s v1/test_oracle.py
@@ -285,13 +285,22 @@ steps:
     - pytest -v -s spec_decode/e2e/test_eagle_correctness.py
 
 - label: LoRA Test %N # 15min each
-  mirror_hardwares: [amd]
+  #mirror_hardwares: [amd]
   source_file_dependencies:
   - vllm/lora
   - tests/lora
-  command: pytest -v -s lora --shard-id=$$BUILDKITE_PARALLEL_JOB --num-shards=$$BUILDKITE_PARALLEL_JOB_COUNT --ignore=lora/test_chatglm3_tp.py --ignore=lora/test_llama_tp.py --ignore=lora/test_minicpmv_tp.py  --ignore=lora/test_transfomers_model.py
+  command: pytest -v -s lora --shard-id=$$BUILDKITE_PARALLEL_JOB --num-shards=$$BUILDKITE_PARALLEL_JOB_COUNT --ignore=lora/test_chatglm3_tp.py --ignore=lora/test_llama_tp.py
   parallelism: 4
 
+- label: PyTorch Compilation Unit Tests
+  source_file_dependencies:
+    - vllm/
+    - tests/compile
+  commands:
+    - pytest -v -s compile/test_pass_manager.py
+    - pytest -v -s compile/test_fusion.py
+    - pytest -v -s compile/test_sequence_parallelism.py
+
 - label: PyTorch Fullgraph Smoke Test # 9min
   source_file_dependencies:
   - vllm/
@@ -301,7 +310,6 @@ steps:
   # these tests need to be separated, cannot combine
   - pytest -v -s compile/piecewise/test_simple.py
   - pytest -v -s compile/piecewise/test_toy_llama.py
-  - pytest -v -s compile/test_pass_manager.py
 
 - label: PyTorch Fullgraph Test # 18min
   source_file_dependencies:
@@ -310,18 +318,49 @@ steps:
   commands:
   - pytest -v -s compile/test_full_graph.py
 
-- label: Kernels Test %N # 1h each
-  mirror_hardwares: [amd]
+- label: Kernels Core Operation Test
   source_file_dependencies:
   - csrc/
-  - vllm/attention
-  - tests/kernels
+  - tests/kernels/core
   commands:
-    - pytest -v -s kernels --shard-id=$$BUILDKITE_PARALLEL_JOB --num-shards=$$BUILDKITE_PARALLEL_JOB_COUNT
-  parallelism: 4
+    - pytest -v -s kernels/core
+
+- label: Kernels Attention Test %N
+  source_file_dependencies:
+  - csrc/attention/
+  - vllm/attention
+  - vllm/v1/attention
+  - tests/kernels/attention
+  commands:
+    - pytest -v -s kernels/attention --shard-id=$$BUILDKITE_PARALLEL_JOB --num-shards=$$BUILDKITE_PARALLEL_JOB_COUNT
+  parallelism: 2
+
+- label: Kernels Quantization Test %N
+  source_file_dependencies:
+  - csrc/quantization/
+  - vllm/model_executor/layers/quantization
+  - tests/kernels/quantization
+  commands:
+    - pytest -v -s kernels/quantization  --shard-id=$$BUILDKITE_PARALLEL_JOB --num-shards=$$BUILDKITE_PARALLEL_JOB_COUNT
+  parallelism: 2
+
+- label: Kernels MoE Test
+  source_file_dependencies:
+  - csrc/moe/
+  - tests/kernels/moe
+  - vllm/model_executor/layers/fused_moe/
+  commands:
+    - pytest -v -s kernels/moe
+
+- label: Kernels Mamba Test
+  source_file_dependencies:
+  - csrc/mamba/
+  - tests/kernels/mamba
+  commands:
+    - pytest -v -s kernels/mamba
 
 - label: Tensorizer Test # 11min
-  mirror_hardwares: [amd]
+  # mirror_hardwares: [amd]
   soft_fail: true
   source_file_dependencies:
   - vllm/model_executor/model_loader
@@ -337,7 +376,14 @@ steps:
   source_file_dependencies:
   - benchmarks/
   commands:
-  - bash run-benchmarks.sh
+  - bash scripts/run-benchmarks.sh
+
+- label: Benchmarks CLI Test # 10min
+  source_file_dependencies:
+  - vllm/
+  - tests/benchmarks/
+  commands:
+  - pytest -v -s benchmarks/
 
 - label: Quantization Test # 33min
   source_file_dependencies:
@@ -372,12 +418,14 @@ steps:
 
 - label: OpenAI-Compatible Tool Use # 20 min
   fast_check: false
-  mirror_hardwares: [ amd ]
+  #mirror_hardwares: [ amd ]
   source_file_dependencies:
     - vllm/
     - tests/tool_use
+    - tests/mistral_tool_use
   commands:
     - pytest -v -s tool_use
+    - pytest -v -s mistral_tool_use
 
 #####  models test  #####
 
@@ -389,7 +437,9 @@ steps:
     - pytest -v -s models/test_transformers.py
     - pytest -v -s models/test_registry.py
     # V1 Test: https://github.com/vllm-project/vllm/issues/14531
-    - VLLM_USE_V1=0 pytest -v -s models/test_initialization.py
+    - VLLM_USE_V1=0 pytest -v -s models/test_initialization.py -k 'not llama4 and not plamo2'
+    - VLLM_USE_V1=0 pytest -v -s models/test_initialization.py -k 'llama4'
+    - VLLM_USE_V1=0 pytest -v -s models/test_initialization.py -k 'plamo2'
 
 - label: Language Models Test (Standard) # 32min
   #mirror_hardwares: [amd]
@@ -399,6 +449,8 @@ steps:
   - tests/models/embedding/language
   - tests/models/encoder_decoder/language
   commands:
+    # Install causal-conv1d for plamo2 models here, as it is not compatible with pip-compile.
+    - pip install causal-conv1d
     - pytest -v -s models/decoder_only/language -m 'core_model or quant_model'
     - pytest -v -s models/embedding/language -m core_model
 
@@ -410,6 +462,8 @@ steps:
   - tests/models/embedding/language
   - tests/models/encoder_decoder/language
   commands:
+    # Install causal-conv1d for plamo2 models here, as it is not compatible with pip-compile.
+    - pip install causal-conv1d
     - pytest -v -s models/decoder_only/language -m 'not core_model and not quant_model'
     - pytest -v -s models/embedding/language -m 'not core_model'
 
@@ -426,7 +480,7 @@ steps:
     - pip install git+https://github.com/TIGER-AI-Lab/Mantis.git
     - pytest -v -s models/multimodal
     - pytest -v -s models/decoder_only/audio_language -m 'core_model or quant_model'
-    - pytest -v -s --ignore models/decoder_only/vision_language/test_phi3v.py models/decoder_only/vision_language -m 'core_model or quant_model'
+    - pytest -v -s models/decoder_only/vision_language -m 'core_model or quant_model'
     - pytest -v -s models/embedding/vision_language -m core_model
     - pytest -v -s models/encoder_decoder/audio_language -m core_model
     - pytest -v -s models/encoder_decoder/language -m core_model
@@ -445,10 +499,7 @@ steps:
     - pip install git+https://github.com/TIGER-AI-Lab/Mantis.git
     - pytest -v -s models/decoder_only/audio_language -m 'not core_model and not quant_model'
     - pytest -v -s models/decoder_only/vision_language/test_models.py -m 'split(group=0) and not core_model and not quant_model'
-    # HACK - run phi3v tests separately to sidestep this transformers bug
-    # https://github.com/huggingface/transformers/issues/34307
-    - pytest -v -s models/decoder_only/vision_language/test_phi3v.py
-    - pytest -v -s --ignore models/decoder_only/vision_language/test_models.py --ignore models/decoder_only/vision_language/test_phi3v.py models/decoder_only/vision_language -m 'not core_model and not quant_model'
+    - pytest -v -s --ignore models/decoder_only/vision_language/test_models.py models/decoder_only/vision_language -m 'not core_model and not quant_model'
     - pytest -v -s models/embedding/vision_language -m 'not core_model'
     - pytest -v -s models/encoder_decoder/language -m 'not core_model'
     - pytest -v -s models/encoder_decoder/vision_language -m 'not core_model'
@@ -464,6 +515,7 @@ steps:
 
 # This test is used only in PR development phase to test individual models and should never run on main
 - label: Custom Models Test
+  mirror_hardwares: [amd]
   optional: true
   commands:
     - echo 'Testing custom models...'
@@ -475,6 +527,7 @@ steps:
 #####  multi gpus test  #####
 
 - label: Distributed Comm Ops Test # 7min
+  mirror_hardwares: [amd]
   working_dir: "/vllm-workspace/tests"
   num_gpus: 2
   source_file_dependencies:
@@ -531,11 +584,14 @@ steps:
   - pytest models/encoder_decoder/language/test_bart.py -v -s -m 'distributed(num_gpus=2)'
   - pytest models/encoder_decoder/vision_language/test_broadcast.py -v -s -m 'distributed(num_gpus=2)'
   - pytest models/decoder_only/vision_language/test_models.py -v -s -m 'distributed(num_gpus=2)'
+  # test sequence parallel
+  - pytest -v -s distributed/test_sequence_parallel.py
   # this test fails consistently.
   # TODO: investigate and fix
   # - pytest -v -s spec_decode/e2e/test_integration_dist_tp2.py
   - VLLM_USE_V1=0 CUDA_VISIBLE_DEVICES=0,1 pytest -v -s test_sharded_state_loader.py
   - VLLM_USE_V1=0 CUDA_VISIBLE_DEVICES=0,1 pytest -v -s kv_transfer/test_disagg.py
+  - CUDA_VISIBLE_DEVICES=0,1 pytest -v -s v1/shutdown
 
 - label: Plugin Tests (2 GPUs) # 40min
   working_dir: "/vllm-workspace/tests"
@@ -602,8 +658,6 @@ steps:
     # requires multi-GPU testing for validation.
     - pytest -v -s -x lora/test_chatglm3_tp.py
     - pytest -v -s -x lora/test_llama_tp.py
-    - pytest -v -s -x lora/test_minicpmv_tp.py
-    - pytest -v -s -x lora/test_transfomers_model.py
 
 
 - label: Weight Loading Multiple GPU Test  # 33min

.github/CODEOWNERS

@@ -12,6 +12,7 @@
 /vllm/model_executor/layers/quantization @mgoin @robertgshaw2-redhat @tlrmchlsmth
 /vllm/model_executor/guided_decoding @mgoin @russellb
 /vllm/multimodal @DarkLight1337 @ywang96
+/vllm/vllm_flash_attn @LucasWilkinson
 CMakeLists.txt @tlrmchlsmth
 
 # vLLM V1

.github/ISSUE_TEMPLATE/200-installation.yml

@@ -14,7 +14,7 @@ body:
     description: |
       Please run the following and paste the output below.
       ```sh
-      wget https://raw.githubusercontent.com/vllm-project/vllm/main/collect_env.py
+      wget https://raw.githubusercontent.com/vllm-project/vllm/main/vllm/collect_env.py
       # For security purposes, please feel free to check the contents of collect_env.py before running it.
       python collect_env.py
       ```

.github/ISSUE_TEMPLATE/300-usage.yml

@@ -14,7 +14,7 @@ body:
     description: |
       Please run the following and paste the output below.
       ```sh
-      wget https://raw.githubusercontent.com/vllm-project/vllm/main/collect_env.py
+      wget https://raw.githubusercontent.com/vllm-project/vllm/main/vllm/collect_env.py
       # For security purposes, please feel free to check the contents of collect_env.py before running it.
       python collect_env.py
       ```

.github/ISSUE_TEMPLATE/400-bug-report.yml

@@ -14,7 +14,7 @@ body:
     description: |
       Please run the following and paste the output below.
       ```sh
-      wget https://raw.githubusercontent.com/vllm-project/vllm/main/collect_env.py
+      wget https://raw.githubusercontent.com/vllm-project/vllm/main/vllm/collect_env.py
       # For security purposes, please feel free to check the contents of collect_env.py before running it.
       python collect_env.py
       ```

.github/ISSUE_TEMPLATE/600-new-model.yml

@@ -9,7 +9,7 @@ body:
     value: >
       #### Before submitting an issue, please make sure the issue hasn't been already addressed by searching through [the existing and past issues](https://github.com/vllm-project/vllm/issues?q=is%3Aissue+sort%3Acreated-desc+).
 
-      #### We also highly recommend you read https://docs.vllm.ai/en/latest/contributing/model/adding_model.html first to understand how to add a new model.
+      #### We also highly recommend you read https://docs.vllm.ai/en/latest/contributing/model/index.html first to understand how to add a new model.
 - type: textarea
   attributes:
     label: The model to consider.

.github/ISSUE_TEMPLATE/700-performance-discussion.yml

@@ -35,7 +35,7 @@ body:
     description: |
       Please run the following and paste the output below.
       ```sh
-      wget https://raw.githubusercontent.com/vllm-project/vllm/main/collect_env.py
+      wget https://raw.githubusercontent.com/vllm-project/vllm/main/vllm/collect_env.py
       # For security purposes, please feel free to check the contents of collect_env.py before running it.
       python collect_env.py
       ```

.github/PULL_REQUEST_TEMPLATE.md

@@ -3,4 +3,4 @@ FILL IN THE PR DESCRIPTION HERE
 FIX #xxxx (*link existing issues this PR will resolve*)
 
 <!--- pyml disable-next-line no-emphasis-as-heading -->
-**BEFORE SUBMITTING, PLEASE READ <https://docs.vllm.ai/en/latest/contributing/overview.html>**
+**BEFORE SUBMITTING, PLEASE READ <https://docs.vllm.ai/en/latest/contributing/overview.html>** (anything written below this line will be removed by GitHub Actions)

.github/mergify.yml

@@ -19,7 +19,7 @@ pull_request_rules:
       - files~=\.buildkite/
       - files~=^cmake/
       - files=CMakeLists.txt
-      - files~=^Dockerfile
+      - files~=^docker/Dockerfile
       - files~=^requirements.*\.txt
       - files=setup.py
   actions:
@@ -55,11 +55,19 @@ pull_request_rules:
   description: Automatically apply structured-output label
   conditions:
     - or:
+      - files~=^benchmarks/structured_schemas/
+      - files=benchmarks/benchmark_serving_structured_output.py
+      - files=benchmarks/run_structured_output_benchmark.sh
+      - files=docs/source/features/structured_outputs.md
+      - files=examples/offline_inference/structured_outputs.py
+      - files=examples/online_serving/openai_chat_completion_structured_outputs.py
+      - files=examples/online_serving/openai_chat_completion_structured_outputs_with_reasoning.py
       - files~=^vllm/model_executor/guided_decoding/
       - files=tests/model_executor/test_guided_processors.py
       - files=tests/entrypoints/llm/test_guided_generate.py
-      - files=benchmarks/benchmark_serving_guided.py
-      - files=benchmarks/benchmark_guided.py
+      - files~=^tests/v1/structured_output/
+      - files=tests/v1/entrypoints/llm/test_guided_generate.py
+      - files~=^vllm/v1/structured_output/
   actions:
     label:
       add:
@@ -118,6 +126,28 @@ pull_request_rules:
       remove:
         - tpu
 
+- name: label-tool-calling
+  description: Automatically add tool-calling label
+  conditions:
+    - or:
+      - files~=^tests/tool_use/
+      - files~=^tests/mistral_tool_use/
+      - files~=^tests/entrypoints/openai/tool_parsers/
+      - files=tests/entrypoints/openai/test_chat_with_tool_reasoning.py
+      - files~=^vllm/entrypoints/openai/tool_parsers/
+      - files=docs/source/features/tool_calling.md
+      - files=docs/source/getting_started/examples/openai_chat_completion_client_with_tools.md
+      - files=docs/source/getting_started/examples/chat_with_tools.md
+      - files~=^examples/tool_chat_*
+      - files=examples/offline_inference/chat_with_tools.py
+      - files=examples/online_serving/openai_chat_completion_client_with_tools_required.py
+      - files=examples/online_serving/openai_chat_completion_tool_calls_with_reasoning.py
+      - files=examples/online_serving/openai_chat_completion_client_with_tools.py
+  actions:
+    label:
+      add:
+        - tool-calling
+
 - name: ping author on conflicts and add 'needs-rebase' label
   conditions:
       - conflict

.github/workflows/lint-and-deploy.yaml

@@ -50,7 +50,7 @@ jobs:
         uses: helm/kind-action@a1b0e391336a6ee6713a0583f8c6240d70863de3 # v1.12.0
 
       - name: Build the Docker image vllm cpu
-        run: docker buildx build -f Dockerfile.cpu -t vllm-cpu-env .
+        run: docker buildx build -f docker/Dockerfile.cpu -t vllm-cpu-env .
 
       - name: Configuration of docker images, network and namespace for the kind cluster
         run: |

.gitignore

@@ -3,7 +3,6 @@
 
 # vllm-flash-attn built from source
 vllm/vllm_flash_attn/*
-!vllm/vllm_flash_attn/fa_utils.py
 
 # Byte-compiled / optimized / DLL files
 __pycache__/
@@ -203,3 +202,6 @@ benchmarks/**/*.json
 # Linting
 actionlint
 shellcheck*/
+
+# Ingore moe/marlin_moe gen code
+csrc/moe/marlin_moe_wna16/kernel_*

.pre-commit-config.yaml

@@ -1,3 +1,6 @@
+default_install_hook_types:
+  - pre-commit
+  - commit-msg
 default_stages:
   - pre-commit # Run locally
   - manual # Run in CI
@@ -8,7 +11,6 @@ repos:
   hooks:
   - id: yapf
     args: [--in-place, --verbose]
-    additional_dependencies: [toml] # TODO: Remove when yapf is upgraded
 - repo: https://github.com/astral-sh/ruff-pre-commit
   rev: v0.9.3
   hooks:
@@ -119,6 +121,12 @@ repos:
     language: system
     always_run: true
     pass_filenames: false
+  - id: update-dockerfile-graph
+    name: Update Dockerfile dependency graph
+    entry: tools/update-dockerfile-graph.sh
+    language: script
+    files: ^docker/Dockerfile$
+    pass_filenames: false
   # Keep `suggestion` last
   - id: suggestion
     name: Suggestion

CMakeLists.txt

@@ -44,7 +44,7 @@ set(HIP_SUPPORTED_ARCHS "gfx906;gfx908;gfx90a;gfx942;gfx950;gfx1030;gfx1100;gfx1
 #
 # Note: the CUDA torch version is derived from pyproject.toml and various
 # requirements.txt files and should be kept consistent.  The ROCm torch
-# versions are derived from Dockerfile.rocm
+# versions are derived from docker/Dockerfile.rocm
 #
 set(TORCH_SUPPORTED_VERSION_CUDA "2.6.0")
 set(TORCH_SUPPORTED_VERSION_ROCM "2.6.0")
@@ -230,6 +230,7 @@ set(VLLM_EXT_SRC
   "csrc/cache_kernels.cu"
   "csrc/attention/paged_attention_v1.cu"
   "csrc/attention/paged_attention_v2.cu"
+  "csrc/attention/merge_attn_states.cu"
   "csrc/pos_encoding_kernels.cu"
   "csrc/activation_kernels.cu"
   "csrc/layernorm_kernels.cu"
@@ -242,6 +243,7 @@ set(VLLM_EXT_SRC
   "csrc/quantization/gguf/gguf_kernel.cu"
   "csrc/cuda_utils_kernels.cu"
   "csrc/prepare_inputs/advance_step.cu"
+  "csrc/custom_all_reduce.cu"
   "csrc/torch_bindings.cpp")
 
 if(VLLM_GPU_LANG STREQUAL "CUDA")
@@ -249,7 +251,7 @@ if(VLLM_GPU_LANG STREQUAL "CUDA")
 
   # Set CUTLASS_REVISION manually -- its revision detection doesn't work in this case.
   # Please keep this in sync with FetchContent_Declare line below.
-  set(CUTLASS_REVISION "v3.8.0" CACHE STRING "CUTLASS revision to use")
+  set(CUTLASS_REVISION "v3.9.0" CACHE STRING "CUTLASS revision to use")
 
   # Use the specified CUTLASS source directory for compilation if VLLM_CUTLASS_SRC_DIR is provided
   if (DEFINED ENV{VLLM_CUTLASS_SRC_DIR})
@@ -267,7 +269,7 @@ if(VLLM_GPU_LANG STREQUAL "CUDA")
         cutlass
         GIT_REPOSITORY https://github.com/nvidia/cutlass.git
         # Please keep this in sync with CUTLASS_REVISION line above.
-        GIT_TAG v3.8.0
+        GIT_TAG v3.9.0
         GIT_PROGRESS TRUE
 
         # Speed up CUTLASS download by retrieving only the specified GIT_TAG instead of the history.
@@ -283,13 +285,13 @@ if(VLLM_GPU_LANG STREQUAL "CUDA")
     "csrc/mamba/causal_conv1d/causal_conv1d.cu"
     "csrc/quantization/aqlm/gemm_kernels.cu"
     "csrc/quantization/awq/gemm_kernels.cu"
-    "csrc/custom_all_reduce.cu"
     "csrc/permute_cols.cu"
     "csrc/quantization/cutlass_w8a8/scaled_mm_entry.cu"
     "csrc/quantization/fp4/nvfp4_quant_entry.cu"
     "csrc/quantization/fp4/nvfp4_scaled_mm_entry.cu"
     "csrc/sparse/cutlass/sparse_scaled_mm_entry.cu"
-    "csrc/cutlass_extensions/common.cpp")
+    "csrc/cutlass_extensions/common.cpp"
+    "csrc/attention/mla/cutlass_mla_entry.cu")
 
   set_gencode_flags_for_srcs(
     SRCS "${VLLM_EXT_SRC}"
@@ -462,7 +464,26 @@ if(VLLM_GPU_LANG STREQUAL "CUDA")
     set(FP4_ARCHS)
   endif()
 
-  #
+  # CUTLASS MLA Archs and flags
+  cuda_archs_loose_intersection(MLA_ARCHS "10.0a" "${CUDA_ARCHS}")
+  if(${CMAKE_CUDA_COMPILER_VERSION} VERSION_GREATER 12.8 AND MLA_ARCHS)
+    set(SRCS
+      "csrc/attention/mla/cutlass_mla_kernels.cu")
+    set_gencode_flags_for_srcs(
+      SRCS "${SRCS}"
+      CUDA_ARCHS "${MLA_ARCHS}")
+    list(APPEND VLLM_EXT_SRC "${SRCS}")
+    list(APPEND VLLM_GPU_FLAGS "-DENABLE_CUTLASS_MLA=1")
+    # Add MLA-specific include directories only to MLA source files
+    set_source_files_properties(${SRCS}
+      PROPERTIES INCLUDE_DIRECTORIES "${CUTLASS_DIR}/examples/77_blackwell_fmha;${CUTLASS_DIR}/examples/common")
+    message(STATUS "Building CUTLASS MLA for archs: ${MLA_ARCHS}")
+  else()
+    message(STATUS "Not building CUTLASS MLA as no compatible archs were found.")
+    # clear MLA_ARCHS
+    set(MLA_ARCHS)
+  endif()
+
   # CUTLASS MoE kernels
 
   # The MoE kernel cutlass_moe_mm requires CUDA 12.3 or later (and only works
@@ -608,21 +629,51 @@ if(VLLM_GPU_LANG STREQUAL "CUDA")
   list(APPEND VLLM_MOE_EXT_SRC "${VLLM_MOE_WNA16_SRC}")
   cuda_archs_loose_intersection(MARLIN_MOE_ARCHS "8.0;8.6;8.7;8.9;9.0;10.0;10.1;12.0" "${CUDA_ARCHS}")
   if (MARLIN_MOE_ARCHS)
-    set(MARLIN_MOE_SRC
-        "csrc/moe/marlin_kernels/marlin_moe_kernel.h"
-        "csrc/moe/marlin_kernels/marlin_moe_kernel_ku4b8.h"
-        "csrc/moe/marlin_kernels/marlin_moe_kernel_ku4b8.cu"
-        "csrc/moe/marlin_kernels/marlin_moe_kernel_ku8b128.h"
-        "csrc/moe/marlin_kernels/marlin_moe_kernel_ku8b128.cu"
-        "csrc/moe/marlin_kernels/marlin_moe_kernel_ku4.h"
-        "csrc/moe/marlin_kernels/marlin_moe_kernel_ku4.cu"
-        "csrc/moe/marlin_moe_ops.cu")
 
+    #
+    # For the Marlin MOE kernels we automatically generate sources for various
+    # preselected input type pairs and schedules.
+    # Generate sources:
+    set(MOE_MARLIN_GEN_SCRIPT
+      ${CMAKE_CURRENT_SOURCE_DIR}/csrc/moe/marlin_moe_wna16/generate_kernels.py)
+    file(MD5 ${MOE_MARLIN_GEN_SCRIPT} MOE_MARLIN_GEN_SCRIPT_HASH)
+
+    message(STATUS "Marlin MOE generation script hash: ${MOE_MARLIN_GEN_SCRIPT_HASH}")
+    message(STATUS "Last run Marlin MOE generate script hash: $CACHE{MOE_MARLIN_GEN_SCRIPT_HASH}")
+
+    if (NOT DEFINED CACHE{MOE_MARLIN_GEN_SCRIPT_HASH}
+        OR NOT $CACHE{MOE_MARLIN_GEN_SCRIPT_HASH} STREQUAL ${MOE_MARLIN_GEN_SCRIPT_HASH})
+      execute_process(
+        COMMAND ${CMAKE_COMMAND} -E env
+        PYTHONPATH=${CMAKE_CURRENT_SOURCE_DIR}/csrc/cutlass_extensions/:${CUTLASS_DIR}/python/:${VLLM_PYTHON_PATH}:$PYTHONPATH
+          ${Python_EXECUTABLE} ${MOE_MARLIN_GEN_SCRIPT}
+        RESULT_VARIABLE moe_marlin_generation_result
+        OUTPUT_VARIABLE moe_marlin_generation_output
+        OUTPUT_FILE ${CMAKE_CURRENT_BINARY_DIR}/moe_marlin_generation.log
+        ERROR_FILE ${CMAKE_CURRENT_BINARY_DIR}/moe_marlin_generation.log
+      )
+
+      if (NOT moe_marlin_generation_result EQUAL 0)
+        message(FATAL_ERROR "Marlin MOE generation failed."
+                            " Result: \"${moe_marlin_generation_result}\""
+                            "\nCheck the log for details: "
+                            "${CMAKE_CURRENT_BINARY_DIR}/moe_marlin_generation.log")
+      else()
+        set(MOE_MARLIN_GEN_SCRIPT_HASH ${MOE_MARLIN_GEN_SCRIPT_HASH}
+            CACHE STRING "Last run Marlin MOE generate script hash" FORCE)
+        message(STATUS "Marlin MOE generation completed successfully.")
+      endif()
+    else()
+      message(STATUS "Marlin MOE generation script has not changed, skipping generation.")
+    endif()
+
+    file(GLOB MOE_WNAA16_MARLIN_SRC "csrc/moe/marlin_moe_wna16/*.cu")
     set_gencode_flags_for_srcs(
-      SRCS "${MARLIN_MOE_SRC}"
+      SRCS "${MOE_WNAA16_MARLIN_SRC}"
       CUDA_ARCHS "${MARLIN_MOE_ARCHS}")
 
-    list(APPEND VLLM_MOE_EXT_SRC "${MARLIN_MOE_SRC}")
+    list(APPEND VLLM_MOE_EXT_SRC ${MOE_WNAA16_MARLIN_SRC})
+
     message(STATUS "Building Marlin MOE kernels for archs: ${MARLIN_MOE_ARCHS}")
   else()
     message(STATUS "Not building Marlin MOE kernels as no compatible archs found"
@@ -647,6 +698,7 @@ if(VLLM_GPU_LANG STREQUAL "HIP")
   #
   set(VLLM_ROCM_EXT_SRC
     "csrc/rocm/torch_bindings.cpp"
+    "csrc/rocm/skinny_gemms.cu"
     "csrc/rocm/attention.cu")
 
   define_gpu_extension_target(

README.md

@@ -10,19 +10,14 @@ Easy, fast, and cheap LLM serving for everyone
 </h3>
 
 <p align="center">
-| <a href="https://docs.vllm.ai"><b>Documentation</b></a> | <a href="https://vllm.ai"><b>Blog</b></a> | <a href="https://arxiv.org/abs/2309.06180"><b>Paper</b></a> | <a href="https://x.com/vllm_project"><b>Twitter/X</b></a> | <a href="https://discuss.vllm.ai"><b>User Forum</b></a> | <a href="https://slack.vllm.ai"><b>Developer Slack</b></a> |
+| <a href="https://docs.vllm.ai"><b>Documentation</b></a> | <a href="https://blog.vllm.ai/"><b>Blog</b></a> | <a href="https://arxiv.org/abs/2309.06180"><b>Paper</b></a> | <a href="https://x.com/vllm_project"><b>Twitter/X</b></a> | <a href="https://discuss.vllm.ai"><b>User Forum</b></a> | <a href="https://slack.vllm.ai"><b>Developer Slack</b></a> |
 </p>
 
 ---
 
-[2025/03] We are collaborating with Ollama to host an [Inference Night](https://lu.ma/vllm-ollama) at Y Combinator in San Francisco on Thursday, March 27, at 6 PM. Discuss all things inference local or data center!
-
-[2025/04] We're hosting our first-ever *vLLM Asia Developer Day* in Singapore on *April 3rd*! This is a full-day event (9 AM - 9 PM SGT) in partnership with SGInnovate, AMD, and Embedded LLM. Meet the vLLM team and learn about LLM inference for RL, MI300X, and more! [Register Now](https://www.sginnovate.com/event/limited-availability-morning-evening-slots-remaining-inaugural-vllm-asia-developer-day)
-
----
-
 *Latest News* 🔥
-
+- [2025/04] We hosted [Asia Developer Day](https://www.sginnovate.com/event/limited-availability-morning-evening-slots-remaining-inaugural-vllm-asia-developer-day)! Please find the meetup slides from the vLLM team [here](https://docs.google.com/presentation/d/19cp6Qu8u48ihB91A064XfaXruNYiBOUKrBxAmDOllOo/edit?usp=sharing).
+- [2025/03] We hosted [vLLM x Ollama Inference Night](https://lu.ma/vllm-ollama)! Please find the meetup slides from the vLLM team [here](https://docs.google.com/presentation/d/16T2PDD1YwRnZ4Tu8Q5r6n53c5Lr5c73UV9Vd2_eBo4U/edit?usp=sharing).
 - [2025/03] We hosted [the first vLLM China Meetup](https://mp.weixin.qq.com/s/n77GibL2corAtQHtVEAzfg)! Please find the meetup slides from vLLM team [here](https://docs.google.com/presentation/d/1REHvfQMKGnvz6p3Fd23HhSO4c8j5WPGZV0bKYLwnHyQ/edit?usp=sharing).
 - [2025/03] We hosted [the East Coast vLLM Meetup](https://lu.ma/7mu4k4xx)! Please find the meetup slides [here](https://docs.google.com/presentation/d/1NHiv8EUFF1NLd3fEYODm56nDmL26lEeXCaDgyDlTsRs/edit#slide=id.g31441846c39_0_0).
 - [2025/02] We hosted [the ninth vLLM meetup](https://lu.ma/h7g3kuj9) with Meta! Please find the meetup slides from vLLM team [here](https://docs.google.com/presentation/d/1jzC_PZVXrVNSFVCW-V4cFXb6pn7zZ2CyP_Flwo05aqg/edit?usp=sharing) and AMD [here](https://drive.google.com/file/d/1Zk5qEJIkTmlQ2eQcXQZlljAx3m9s7nwn/view?usp=sharing). The slides from Meta will not be posted.
@@ -103,7 +98,7 @@ Visit our [documentation](https://docs.vllm.ai/en/latest/) to learn more.
 ## Contributing
 
 We welcome and value any contributions and collaborations.
-Please check out [CONTRIBUTING.md](./CONTRIBUTING.md) for how to get involved.
+Please check out [Contributing to vLLM](https://docs.vllm.ai/en/stable/contributing/overview.html) for how to get involved.
 
 ## Sponsors
 
@@ -126,6 +121,7 @@ Compute Resources:
 - Databricks
 - DeepInfra
 - Google Cloud
+- Intel
 - Lambda Lab
 - Nebius
 - Novita AI

benchmarks/README.md

@@ -51,6 +51,12 @@ become available.
       <td style="text-align: center;">✅</td>
       <td style="text-align: center;">✅</td>
       <td><code>likaixin/InstructCoder</code></td>
+    </tr>
+      <tr>
+      <td><strong>HuggingFace-AIMO</strong></td>
+      <td style="text-align: center;">✅</td>
+      <td style="text-align: center;">✅</td>
+      <td><code>AI-MO/aimo-validation-aime</code> , <code>AI-MO/NuminaMath-1.5</code>, <code>AI-MO/NuminaMath-CoT</code></td>
     </tr>
     <tr>
       <td><strong>HuggingFace-Other</strong></td>
@@ -187,6 +193,35 @@ python3 vllm/benchmarks/benchmark_serving.py \
   --num-prompts 10
 ```
 
+**`AI-MO/aimo-validation-aime`**
+
+``` bash
+python3 vllm/benchmarks/benchmark_serving.py \
+    --model Qwen/QwQ-32B \
+    --dataset-name hf \
+    --dataset-path AI-MO/aimo-validation-aime \
+    --num-prompts 10 \
+    --seed 42
+```
+
+### Running With Sampling Parameters
+
+When using OpenAI-compatible backends such as `vllm`, optional sampling
+parameters can be specified. Example client command:
+
+```bash
+python3 vllm/benchmarks/benchmark_serving.py \
+  --backend vllm \
+  --model NousResearch/Hermes-3-Llama-3.1-8B \
+  --endpoint /v1/completions \
+  --dataset-name sharegpt \
+  --dataset-path <your data path>/ShareGPT_V3_unfiltered_cleaned_split.json \
+  --top-k 10 \
+  --top-p 0.9 \
+  --temperature 0.5 \
+  --num-prompts 10
+```
+
 ---
 ## Example - Offline Throughput Benchmark
 
@@ -278,6 +313,18 @@ python3 vllm/benchmarks/benchmark_throughput.py \
   --num-prompts 10
 ```
 
+**`AI-MO/aimo-validation-aime`**
+
+```bash
+python3 benchmarks/benchmark_throughput.py \
+  --model Qwen/QwQ-32B \
+  --backend vllm \
+  --dataset-name hf \
+  --dataset-path AI-MO/aimo-validation-aime \
+  --hf-split train \
+  --num-prompts 10
+```
+
 ### Benchmark with LoRA Adapters
 
 ``` bash

benchmarks/backend_request_func.py

@@ -1,5 +1,6 @@
 # SPDX-License-Identifier: Apache-2.0
 
+import io
 import json
 import os
 import sys
@@ -32,6 +33,7 @@ class RequestFuncInput:
     extra_body: Optional[dict] = None
     multi_modal_content: Optional[dict] = None
     ignore_eos: bool = False
+    language: Optional[str] = None
 
 
 @dataclass
@@ -219,7 +221,15 @@ async def async_request_deepspeed_mii(
                 if response.status == 200:
                     parsed_resp = await response.json()
                     output.latency = time.perf_counter() - st
-                    output.generated_text = parsed_resp["text"][0]
+                    if "choices" in parsed_resp:
+                        output.generated_text = parsed_resp["choices"][0][
+                            "text"]
+                    elif "text" in parsed_resp:
+                        output.generated_text = parsed_resp["text"][0]
+                    else:
+                        output.error = ("Unexpected response format: "
+                                        "neither 'choices' nor 'text' found")
+                        output.success = False
                     output.success = True
                 else:
                     output.error = response.reason or ""
@@ -428,6 +438,110 @@ async def async_request_openai_chat_completions(
     return output
 
 
+async def async_request_openai_audio(
+    request_func_input: RequestFuncInput,
+    pbar: Optional[tqdm] = None,
+) -> RequestFuncOutput:
+    # Lazy import without PlaceholderModule to avoid vllm dep.
+    import soundfile
+    api_url = request_func_input.api_url
+    assert api_url.endswith(
+        ("transcriptions", "translations"
+         )), "OpenAI Chat Completions API URL must end with 'transcriptions' "
+    "or `translations`."
+
+    async with aiohttp.ClientSession(trust_env=True,
+                                     timeout=AIOHTTP_TIMEOUT) as session:
+        content = [{"type": "text", "text": request_func_input.prompt}]
+        payload = {
+            "model": request_func_input.model_name \
+                if request_func_input.model_name else request_func_input.model,
+            "temperature": 0.0,
+            "max_completion_tokens": request_func_input.output_len,
+            "stream": True,
+            "language": "en",
+            # Flattened due to multipart/form-data
+            "stream_include_usage": True,
+            "stream_continuous_usage_stats": True
+        }
+        if request_func_input.extra_body:
+            payload.update(request_func_input.extra_body)
+        headers = {
+            "Authorization": f"Bearer {os.environ.get('OPENAI_API_KEY')}",
+        }
+
+        # Send audio file
+        def to_bytes(y, sr):
+            buffer = io.BytesIO()
+            soundfile.write(buffer, y, sr, format="WAV")
+            buffer.seek(0)
+            return buffer
+
+        with to_bytes(*request_func_input.multi_modal_content['audio']) as f:
+            form = aiohttp.FormData()
+            form.add_field('file', f, content_type='audio/wav')
+            for key, value in payload.items():
+                form.add_field(key, str(value))
+
+            output = RequestFuncOutput()
+            output.prompt_len = request_func_input.prompt_len
+
+            generated_text = ""
+            ttft = 0.0
+            st = time.perf_counter()
+            most_recent_timestamp = st
+            try:
+                async with session.post(url=api_url,
+                                        data=form,
+                                        headers=headers) as response:
+                    if response.status == 200:
+                        async for chunk_bytes in response.content:
+                            chunk_bytes = chunk_bytes.strip()
+                            if not chunk_bytes:
+                                continue
+
+                            chunk = chunk_bytes.decode("utf-8").removeprefix(
+                                "data: ")
+                            if chunk != "[DONE]":
+                                timestamp = time.perf_counter()
+                                data = json.loads(chunk)
+
+                                if choices := data.get("choices"):
+                                    content = choices[0]["delta"].get(
+                                        "content")
+                                    # First token
+                                    if ttft == 0.0:
+                                        ttft = timestamp - st
+                                        output.ttft = ttft
+
+                                    # Decoding phase
+                                    else:
+                                        output.itl.append(
+                                            timestamp - most_recent_timestamp)
+
+                                    generated_text += content or ""
+                                elif usage := data.get("usage"):
+                                    output.output_tokens = usage.get(
+                                        "completion_tokens")
+
+                                most_recent_timestamp = timestamp
+
+                        output.generated_text = generated_text
+                        output.success = True
+                        output.latency = most_recent_timestamp - st
+                    else:
+                        output.error = response.reason or ""
+                        output.success = False
+            except Exception:
+                output.success = False
+                exc_info = sys.exc_info()
+                output.error = "".join(traceback.format_exception(*exc_info))
+
+        if pbar:
+            pbar.update(1)
+        return output
+
+
 def get_model(pretrained_model_name_or_path: str) -> str:
     if os.getenv('VLLM_USE_MODELSCOPE', 'False').lower() == 'true':
         from modelscope import snapshot_download
@@ -485,7 +599,14 @@ ASYNC_REQUEST_FUNCS = {
     "deepspeed-mii": async_request_deepspeed_mii,
     "openai": async_request_openai_completions,
     "openai-chat": async_request_openai_chat_completions,
+    "openai-audio": async_request_openai_audio,
     "tensorrt-llm": async_request_trt_llm,
     "scalellm": async_request_openai_completions,
     "sglang": async_request_openai_completions,
 }
+
+OPENAI_COMPATIBLE_BACKENDS = [
+    k for k, v in ASYNC_REQUEST_FUNCS.items()
+    if v in (async_request_openai_completions,
+             async_request_openai_chat_completions)
+]

benchmarks/benchmark_dataset.py

@@ -64,6 +64,7 @@ class SampleRequest:
 
 class BenchmarkDataset(ABC):
     DEFAULT_SEED = 0
+    IS_MULTIMODAL = False
 
     def __init__(
         self,
@@ -288,7 +289,7 @@ def process_image(image: Any) -> Mapping[str, Any]:
 class RandomDataset(BenchmarkDataset):
     # Default values copied from benchmark_serving.py for the random dataset.
     DEFAULT_PREFIX_LEN = 0
-    DEFAULT_RANGE_RATIO = 1.0
+    DEFAULT_RANGE_RATIO = 0.0
     DEFAULT_INPUT_LEN = 1024
     DEFAULT_OUTPUT_LEN = 128
 
@@ -308,19 +309,32 @@ class RandomDataset(BenchmarkDataset):
         output_len: int = DEFAULT_OUTPUT_LEN,
         **kwargs,
     ) -> list[SampleRequest]:
+        # Enforce range_ratio < 1
+        assert range_ratio < 1.0, (
+            "random_range_ratio must be < 1.0 to ensure a valid sampling range"
+        )
+
         vocab_size = tokenizer.vocab_size
 
         prefix_token_ids = (np.random.randint(
             0, vocab_size, size=prefix_len).tolist() if prefix_len > 0 else [])
 
-        input_low = int(input_len * range_ratio)
-        output_low = int(output_len * range_ratio)
+        # New sampling logic: [X * (1 - b), X * (1 + b)]
+        input_low = int(input_len * (1 - range_ratio))
+        input_high = int(input_len * (1 + range_ratio))
+        output_low = int(output_len * (1 - range_ratio))
+        output_high = int(output_len * (1 + range_ratio))
+
+        # Add logging for debugging
+        logger.info("Sampling input_len from [%s, %s]", input_low, input_high)
+        logger.info("Sampling output_len from [%s, %s]", output_low,
+                    output_high)
 
         input_lens = np.random.randint(input_low,
-                                       input_len + 1,
+                                       input_high + 1,
                                        size=num_requests)
         output_lens = np.random.randint(output_low,
-                                        output_len + 1,
+                                        output_high + 1,
                                         size=num_requests)
         offsets = np.random.randint(0, vocab_size, size=num_requests)
 
@@ -472,11 +486,11 @@ class SonnetDataset(BenchmarkDataset):
 
         # Determine how many poem lines to use.
         num_input_lines = round((input_len - base_offset) / avg_len)
-        num_prefix_lines = round((prefix_len - base_offset) / avg_len)
+        num_prefix_lines = max(round((prefix_len - base_offset) / avg_len), 0)
         prefix_lines = self.data[:num_prefix_lines]
 
         samples = []
-        for _ in range(num_requests):
+        while len(samples) < num_requests:
             extra_lines = random.choices(self.data,
                                          k=num_input_lines - num_prefix_lines)
             prompt = f"{base_prompt}{''.join(prefix_lines + extra_lines)}"
@@ -484,13 +498,14 @@ class SonnetDataset(BenchmarkDataset):
             prompt_formatted = tokenizer.apply_chat_template(
                 msg, add_generation_prompt=True, tokenize=False)
             prompt_len = len(tokenizer(prompt_formatted).input_ids)
-            samples.append(
-                SampleRequest(
-                    prompt=prompt_formatted
-                    if return_prompt_formatted else prompt,
-                    prompt_len=prompt_len,
-                    expected_output_len=output_len,
-                ))
+            if prompt_len <= input_len:
+                samples.append(
+                    SampleRequest(
+                        prompt=prompt_formatted
+                        if return_prompt_formatted else prompt,
+                        prompt_len=prompt_len,
+                        expected_output_len=output_len,
+                    ))
         return samples
 
 
@@ -582,15 +597,6 @@ class HuggingFaceDataset(BenchmarkDataset):
     ) -> None:
         super().__init__(dataset_path=dataset_path, **kwargs)
 
-        # Validate dataset path
-        if self.SUPPORTED_DATASET_PATHS and \
-            self.dataset_path not in self.SUPPORTED_DATASET_PATHS:
-            raise ValueError(
-                f"{self.__class__.__name__} "
-                f"only supports: {', '.join(self.SUPPORTED_DATASET_PATHS)}. "
-                "Please consider contributing if you would "
-                "like to add support for additional dataset formats.")
-
         self.dataset_split = dataset_split
         self.dataset_subset = dataset_subset
         self.load_data()
@@ -616,6 +622,7 @@ class ConversationDataset(HuggingFaceDataset):
     SUPPORTED_DATASET_PATHS = {
         'lmms-lab/LLaVA-OneVision-Data', 'Aeala/ShareGPT_Vicuna_unfiltered'
     }
+    IS_MULTIMODAL = True
 
     def sample(self,
                tokenizer: PreTrainedTokenizerBase,
@@ -680,6 +687,7 @@ class VisionArenaDataset(HuggingFaceDataset):
         "lmarena-ai/vision-arena-bench-v0.1":
         lambda x: x["turns"][0][0]["content"]
     }
+    IS_MULTIMODAL = True
 
     def sample(
         self,
@@ -761,3 +769,129 @@ class InstructCoderDataset(HuggingFaceDataset):
                 ))
         self.maybe_oversample_requests(sampled_requests, num_requests)
         return sampled_requests
+
+
+# -----------------------------------------------------------------------------
+# AIMO Dataset Implementation
+# -----------------------------------------------------------------------------
+
+
+class AIMODataset(HuggingFaceDataset):
+    """
+    Dataset class for processing a AIMO dataset with reasoning questions.
+    """
+    SUPPORTED_DATASET_PATHS = {
+        "AI-MO/aimo-validation-aime", "AI-MO/NuminaMath-1.5",
+        "AI-MO/NuminaMath-CoT"
+    }
+
+    def sample(self,
+               tokenizer: PreTrainedTokenizerBase,
+               num_requests: int,
+               output_len: Optional[int] = None,
+               **kwargs) -> list:
+        sampled_requests = []
+        dynamic_output = output_len is None
+
+        for item in self.data:
+            if len(sampled_requests) >= num_requests:
+                break
+            prompt, completion = item['problem'], item["solution"]
+
+            prompt_ids = tokenizer(prompt).input_ids
+            completion_ids = tokenizer(completion).input_ids
+            prompt_len = len(prompt_ids)
+            completion_len = len(completion_ids)
+            output_len = completion_len if dynamic_output else output_len
+            assert isinstance(output_len, int) and output_len > 0
+            if dynamic_output and not is_valid_sequence(prompt_len,
+                                                        completion_len,
+                                                        max_prompt_len=2048,
+                                                        max_total_len=32000):
+                continue
+            sampled_requests.append(
+                SampleRequest(
+                    prompt=prompt,
+                    prompt_len=prompt_len,
+                    expected_output_len=output_len,
+                    multi_modal_data=None,
+                ))
+        self.maybe_oversample_requests(sampled_requests, num_requests)
+        return sampled_requests
+
+
+# -----------------------------------------------------------------------------
+# ASR Dataset Implementation
+# -----------------------------------------------------------------------------
+
+
+class ASRDataset(HuggingFaceDataset):
+    """
+    Dataset class for processing a ASR dataset for transcription.
+    Tested on the following set:
+
+    +----------------+----------------------------------------+--------------------------+-----------------------------+
+    | Dataset        | Domain                                 | Speaking Style           | hf-subset                   |
+    +----------------+----------------------------------------+--------------------------+-----------------------------+
+    | TED-LIUM       | TED talks                              | Oratory                  | release1, release2, release3|
+    |                |                                        |                          | release3-speaker-adaptation |
+    | VoxPopuli      | European Parliament                    | Oratory                  | en, de, it, fr,  ...        |
+    | LibriSpeech    | Audiobook                              | Narrated                 | "LIUM/tedlium"              |
+    | GigaSpeech     | Audiobook, podcast, YouTube            | Narrated, spontaneous    | xs, s, m, l, xl, dev, test  |
+    | SPGISpeech     | Financial meetings                     | Oratory, spontaneous     | S, M, L, dev, test          |
+    | AMI            | Meetings                               | Spontaneous              | ihm, sdm                    |
+    +----------------+----------------------------------------+--------------------------+-----------------------------+
+
+    """ # noqa: E501
+    SUPPORTED_DATASET_PATHS = {
+        "openslr/librispeech_asr", "facebook/voxpopuli", "LIUM/tedlium",
+        "edinburghcstr/ami", "speechcolab/gigaspeech", "kensho/spgispeech"
+    }
+
+    DEFAULT_OUTPUT_LEN = 128
+    IS_MULTIMODAL = True
+
+    # TODO Whisper-specific. Abstract interface when more models are supported.
+    TRANSCRIPTION_PREAMBLE = "<|startoftranscript|><|en|><|transcribe|>"\
+                              "<|notimestamps|>"
+    skip_long_audios: bool = True
+
+    def sample(
+        self,
+        tokenizer: PreTrainedTokenizerBase,
+        num_requests: int,
+        output_len: Optional[int] = None,
+        **kwargs,
+    ) -> list:
+        import librosa
+        output_len = (output_len
+                      if output_len is not None else self.DEFAULT_OUTPUT_LEN)
+        prompt = ASRDataset.TRANSCRIPTION_PREAMBLE
+        prompt_len = len(tokenizer(prompt).input_ids)
+        sampled_requests = []
+        skipped = 0
+        for item in self.data:
+            if len(sampled_requests) >= num_requests:
+                break
+            audio = item["audio"]
+            y, sr = audio["array"], audio["sampling_rate"]
+            duration_s = librosa.get_duration(y=y, sr=sr)
+            # Whisper max supported duration
+            if self.skip_long_audios and duration_s > 30:
+                skipped += 1
+                continue
+
+            mm_content = {"audio": (y, sr)}
+            sampled_requests.append(
+                SampleRequest(
+                    prompt=prompt,
+                    prompt_len=prompt_len,
+                    expected_output_len=output_len,
+                    multi_modal_data=mm_content,
+                ))
+        if skipped:
+            logger.warning("%d samples discarded from dataset due to" \
+                           " their length being greater than" \
+                           " what Whisper supports.", skipped)
+        self.maybe_oversample_requests(sampled_requests, num_requests)
+        return sampled_requests

benchmarks/benchmark_latency.py

@@ -5,21 +5,18 @@ import argparse
 import dataclasses
 import json
 import os
-import random
 import time
 from pathlib import Path
-from typing import Any, Optional, Union
+from typing import Any, Optional
 
 import numpy as np
 import torch
-from benchmark_utils import (convert_to_pytorch_benchmark_format, get_requests,
-                             validate_dataset, write_to_json)
+from benchmark_utils import convert_to_pytorch_benchmark_format, write_to_json
 from tqdm import tqdm
-from transformers import AutoTokenizer
 
 from vllm import LLM, SamplingParams
 from vllm.engine.arg_utils import EngineArgs
-from vllm.inputs import TextPrompt, TokensPrompt
+from vllm.inputs import PromptType
 from vllm.sampling_params import BeamSearchParams
 from vllm.utils import FlexibleArgumentParser
 
@@ -51,34 +48,28 @@ def main(args: argparse.Namespace):
 
     sampling_params = SamplingParams(
         n=args.n,
-        temperature=0,
+        temperature=1.0,
         top_p=1.0,
         ignore_eos=True,
         max_tokens=args.output_len,
         detokenize=not args.disable_detokenize,
     )
     print(sampling_params)
-
-    tokenizer = AutoTokenizer.from_pretrained(
-        args.tokenizer, trust_remote_code=args.trust_remote_code)
-    requests = get_requests(args.batch_size, args, tokenizer)
-    prompts: list[Union[TextPrompt, TokensPrompt]] = []
-    for request in requests:
-        prompts.append(
-            TokensPrompt(prompt_token_ids=request.prompt["prompt_token_ids"],
-                       multi_modal_data=request.multi_modal_data)
-            if "prompt_token_ids" in request.prompt else \
-            TextPrompt(prompt=request.prompt,
-                       multi_modal_data=request.multi_modal_data))
+    dummy_prompt_token_ids = np.random.randint(10000,
+                                               size=(args.batch_size,
+                                                     args.input_len))
+    dummy_prompts: list[PromptType] = [{
+        "prompt_token_ids": batch
+    } for batch in dummy_prompt_token_ids.tolist()]
 
     def llm_generate():
         if not args.use_beam_search:
-            llm.generate(prompts,
+            llm.generate(dummy_prompts,
                          sampling_params=sampling_params,
                          use_tqdm=False)
         else:
             llm.beam_search(
-                prompts,
+                dummy_prompts,
                 BeamSearchParams(
                     beam_width=args.n,
                     max_tokens=args.output_len,
@@ -189,44 +180,7 @@ if __name__ == "__main__":
         help=("Do not detokenize responses (i.e. do not include "
               "detokenization time in the latency measurement)"),
     )
-    parser.add_argument(
-        "--dataset-name",
-        type=str,
-        choices=["sharegpt", "random", "sonnet", "burstgpt", "hf"],
-        help="Name of the dataset to benchmark on.",
-        default="sharegpt")
-    # random dataset
-    parser.add_argument(
-        "--random-range-ratio",
-        type=float,
-        default=None,
-        help="Range of sampled ratio of input/output length, "
-        "used only for RandomDataSet.",
-    )
-    parser.add_argument("--dataset-path",
-                        type=str,
-                        default=None,
-                        help="Path to the dataset")
-
-    # LoRA
-    parser.add_argument(
-        "--lora-path",
-        type=str,
-        default=None,
-        help="Path to the lora adapters to use. This can be an absolute path, "
-        "a relative path, or a Hugging Face model identifier.")
-
-    parser.add_argument("--prefix-len",
-                        type=int,
-                        default=None,
-                        help="Number of prefix tokens per request."
-                        "This is for the RandomDataset and SonnetDataset")
 
     parser = EngineArgs.add_cli_args(parser)
     args = parser.parse_args()
-    if args.tokenizer is None:
-        args.tokenizer = args.model
-    args.backend = "vllm"
-    validate_dataset(args)
-    random.seed(0)
     main(args)

benchmarks/benchmark_prefix_caching.py

@@ -63,14 +63,16 @@ class Request:
     output_len: int
 
 
-def sample_tokens(tokenizer: PreTrainedTokenizerBase, length: int) -> str:
+def sample_tokens(tokenizer: PreTrainedTokenizerBase,
+                  length: int) -> list[int]:
     vocab = tokenizer.get_vocab()
+    all_special_ids = set(tokenizer.all_special_ids)
+
     # Remove the special tokens.
-    vocab = {
-        k: v
-        for k, v in vocab.items() if k not in tokenizer.all_special_ids
-    }
-    return random.choices(list(vocab.values()), k=length)
+    return random.choices(
+        [v for k, v in vocab.items() if k not in all_special_ids],
+        k=length,
+    )
 
 
 def sample_requests_from_dataset(

benchmarks/benchmark_serving.py

@@ -34,7 +34,8 @@ from datetime import datetime
 from typing import Any, Optional
 
 import numpy as np
-from backend_request_func import (ASYNC_REQUEST_FUNCS, RequestFuncInput,
+from backend_request_func import (ASYNC_REQUEST_FUNCS,
+                                  OPENAI_COMPATIBLE_BACKENDS, RequestFuncInput,
                                   RequestFuncOutput)
 from tqdm.asyncio import tqdm
 from transformers import PreTrainedTokenizerBase
@@ -49,7 +50,8 @@ try:
 except ImportError:
     from argparse import ArgumentParser as FlexibleArgumentParser
 
-from benchmark_dataset import (BurstGPTDataset, ConversationDataset,
+from benchmark_dataset import (AIMODataset, ASRDataset, BurstGPTDataset,
+                               ConversationDataset, HuggingFaceDataset,
                                InstructCoderDataset, RandomDataset,
                                SampleRequest, ShareGPTDataset, SonnetDataset,
                                VisionArenaDataset)
@@ -154,7 +156,7 @@ def calculate_metrics(
         if outputs[i].success:
             output_len = outputs[i].output_tokens
 
-            if output_len is None:
+            if not output_len:
                 # We use the tokenizer to count the number of output tokens
                 # for some serving backends instead of looking at
                 # len(outputs[i].itl) since multiple output tokens may be
@@ -259,6 +261,7 @@ async def benchmark(
     goodput_config_dict: dict[str, float],
     max_concurrency: Optional[int],
     lora_modules: Optional[Iterable[str]],
+    extra_body: Optional[dict],
 ):
     if backend in ASYNC_REQUEST_FUNCS:
         request_func = ASYNC_REQUEST_FUNCS[backend]
@@ -271,10 +274,6 @@ async def benchmark(
         input_requests[0].expected_output_len, \
             input_requests[0].multi_modal_data
 
-    if backend != "openai-chat" and test_mm_content is not None:
-        # multi-modal benchmark is only available on OpenAI Chat backend.
-        raise ValueError(
-            "Multi-modal content is only supported on 'openai-chat' backend.")
     assert test_mm_content is None or isinstance(test_mm_content, dict)
     test_input = RequestFuncInput(
         model=model_id,
@@ -286,6 +285,7 @@ async def benchmark(
         logprobs=logprobs,
         multi_modal_content=test_mm_content,
         ignore_eos=ignore_eos,
+        extra_body=extra_body,
     )
 
     test_output = await request_func(request_func_input=test_input)
@@ -312,7 +312,8 @@ async def benchmark(
                                          output_len=test_output_len,
                                          logprobs=logprobs,
                                          multi_modal_content=test_mm_content,
-                                         ignore_eos=ignore_eos)
+                                         ignore_eos=ignore_eos,
+                                         extra_body=extra_body)
         profile_output = await request_func(request_func_input=profile_input)
         if profile_output.success:
             print("Profiler started")
@@ -362,7 +363,8 @@ async def benchmark(
                                               output_len=output_len,
                                               logprobs=logprobs,
                                               multi_modal_content=mm_content,
-                                              ignore_eos=ignore_eos)
+                                              ignore_eos=ignore_eos,
+                                              extra_body=extra_body)
         tasks.append(
             asyncio.create_task(
                 limited_request_func(request_func_input=request_func_input,
@@ -595,14 +597,38 @@ def main(args: argparse.Namespace):
             args.hf_split = "train"
         elif args.dataset_path in ConversationDataset.SUPPORTED_DATASET_PATHS:
             dataset_class = ConversationDataset
+        elif args.dataset_path in AIMODataset.SUPPORTED_DATASET_PATHS:
+            dataset_class = AIMODataset
+            args.hf_split = "train"
+        elif args.dataset_path in ASRDataset.SUPPORTED_DATASET_PATHS:
+            dataset_class = ASRDataset
+            args.hf_split = "train"
+        else:
+            supported_datasets = set([
+                dataset_name for cls in HuggingFaceDataset.__subclasses__()
+                for dataset_name in cls.SUPPORTED_DATASET_PATHS
+            ])
+            raise ValueError(
+                f"Unsupported dataset path: {args.dataset_path}. "
+                "Huggingface dataset only supports dataset_path"
+                f" from one of following: {supported_datasets}. "
+                "Please consider contributing if you would "
+                "like to add support for additional dataset formats.")
+
+        if (dataset_class.IS_MULTIMODAL and backend not in \
+            ["openai-chat", "openai-audio"]):
+            # multi-modal benchmark is only available on OpenAI Chat backend.
+            raise ValueError(
+                "Multi-modal content is only supported on 'openai-chat' and " \
+                "'openai-audio' backend.")
         input_requests = dataset_class(
             dataset_path=args.dataset_path,
             dataset_subset=args.hf_subset,
             dataset_split=args.hf_split,
+            random_seed=args.seed,
         ).sample(
             num_requests=args.num_prompts,
             tokenizer=tokenizer,
-            random_seed=args.seed,
             output_len=args.hf_output_len,
         )
 
@@ -637,6 +663,26 @@ def main(args: argparse.Namespace):
             raise ValueError(f"Unknown dataset: {args.dataset_name}") from err
     goodput_config_dict = check_goodput_args(args)
 
+    # Collect the sampling parameters.
+    sampling_params = {
+        k: v
+        for k, v in {
+            "top_p": args.top_p,
+            "top_k": args.top_k,
+            "min_p": args.min_p,
+            "temperature": args.temperature
+        }.items() if v is not None
+    }
+
+    # Sampling parameters are only supported by openai-compatible backend.
+    if sampling_params and args.backend not in OPENAI_COMPATIBLE_BACKENDS:
+        raise ValueError(
+            "Sampling parameters are only supported by openai-compatible "
+            "backends.")
+
+    if "temperature" not in sampling_params:
+        sampling_params["temperature"] = 0.0  # Default to greedy decoding.
+
     # Avoid GC processing "static" data - reduce pause times.
     gc.collect()
     gc.freeze()
@@ -663,10 +709,11 @@ def main(args: argparse.Namespace):
             goodput_config_dict=goodput_config_dict,
             max_concurrency=args.max_concurrency,
             lora_modules=args.lora_modules,
+            extra_body=sampling_params,
         ))
 
     # Save config and results to json
-    if args.save_result:
+    if args.save_result or args.append_result:
         result_json: dict[str, Any] = {}
 
         # Setup
@@ -687,6 +734,14 @@ def main(args: argparse.Namespace):
                     raise ValueError(
                         "Invalid metadata format. Please use KEY=VALUE format."
                     )
+        # Traffic
+        result_json["request_rate"] = (args.request_rate if args.request_rate
+                                       < float("inf") else "inf")
+        result_json["burstiness"] = args.burstiness
+        result_json["max_concurrency"] = args.max_concurrency
+
+        # Merge with benchmark result
+        result_json = {**result_json, **benchmark_result}
 
         if not args.save_detailed:
             # Remove fields with too many data points
@@ -697,15 +752,6 @@ def main(args: argparse.Namespace):
                 if field in result_json:
                     del result_json[field]
 
-        # Traffic
-        result_json["request_rate"] = (args.request_rate if args.request_rate
-                                       < float("inf") else "inf")
-        result_json["burstiness"] = args.burstiness
-        result_json["max_concurrency"] = args.max_concurrency
-
-        # Merge with benchmark result
-        result_json = {**result_json, **benchmark_result}
-
         # Save to file
         base_model_id = model_id.split("/")[-1]
         max_concurrency_str = (f"-concurrency{args.max_concurrency}"
@@ -715,7 +761,12 @@ def main(args: argparse.Namespace):
             file_name = args.result_filename
         if args.result_dir:
             file_name = os.path.join(args.result_dir, file_name)
-        with open(file_name, "w", encoding='utf-8') as outfile:
+        with open(file_name,
+                  mode="a+" if args.append_result else "w",
+                  encoding='utf-8') as outfile:
+            # Append a newline.
+            if args.append_result and outfile.tell() != 0:
+                outfile.write("\n")
             json.dump(result_json, outfile)
         save_to_pytorch_benchmark_format(args, result_json, file_name)
 
@@ -847,6 +898,11 @@ if __name__ == "__main__":
         help="When saving the results, whether to include per request "
         "information such as response, error, ttfs, tpots, etc.",
     )
+    parser.add_argument(
+        "--append-result",
+        action="store_true",
+        help="Append the benchmark result to the existing json file.",
+    )
     parser.add_argument(
         "--metadata",
         metavar="KEY=VALUE",
@@ -880,7 +936,7 @@ if __name__ == "__main__":
         "--percentile-metrics",
         type=str,
         default="ttft,tpot,itl",
-        help="Comma-seperated list of selected metrics to report percentils. "
+        help="Comma-separated list of selected metrics to report percentils. "
         "This argument specifies the metrics to report percentiles. "
         "Allowed metric names are \"ttft\", \"tpot\", \"itl\", \"e2el\". "
         "Default value is \"ttft,tpot,itl\".")
@@ -888,7 +944,7 @@ if __name__ == "__main__":
         "--metric-percentiles",
         type=str,
         default="99",
-        help="Comma-seperated list of percentiles for selected metrics. "
+        help="Comma-separated list of percentiles for selected metrics. "
         "To report 25-th, 50-th, and 75-th percentiles, use \"25,50,75\". "
         "Default value is \"99\". "
         "Use \"--percentile-metrics\" to select metrics.",
@@ -955,18 +1011,23 @@ if __name__ == "__main__":
     random_group.add_argument(
         "--random-range-ratio",
         type=float,
-        default=1.0,
-        help="Range of sampled ratio of input/output length, "
-        "used only for random sampling.",
+        default=0.0,
+        help="Range ratio for sampling input/output length, "
+        "used only for random sampling. Must be in the range [0, 1) to define "
+        "a symmetric sampling range"
+        "[length * (1 - range_ratio), length * (1 + range_ratio)].",
     )
     random_group.add_argument(
         "--random-prefix-len",
         type=int,
         default=0,
-        help="Number of fixed prefix tokens before random "
-        " context. The length range of context in a random "
-        " request is [random-prefix-len, "
-        " random-prefix-len + random-prefix-len * random-range-ratio).")
+        help=("Number of fixed prefix tokens before the random context "
+              "in a request. "
+              "The total input length is the sum of `random-prefix-len` and "
+              "a random "
+              "context length sampled from [input_len * (1 - range_ratio), "
+              "input_len * (1 + range_ratio)]."),
+    )
 
     hf_group = parser.add_argument_group("hf dataset options")
     hf_group.add_argument("--hf-subset",
@@ -985,6 +1046,33 @@ if __name__ == "__main__":
         "from the sampled HF dataset.",
     )
 
+    sampling_group = parser.add_argument_group("sampling parameters")
+    sampling_group.add_argument(
+        "--top-p",
+        type=float,
+        default=None,
+        help="Top-p sampling parameter. Only has effect on openai-compatible "
+        "backends.")
+    sampling_group.add_argument(
+        "--top-k",
+        type=int,
+        default=None,
+        help="Top-k sampling parameter. Only has effect on openai-compatible "
+        "backends.")
+    sampling_group.add_argument(
+        "--min-p",
+        type=float,
+        default=None,
+        help="Min-p sampling parameter. Only has effect on openai-compatible "
+        "backends.")
+    sampling_group.add_argument(
+        "--temperature",
+        type=float,
+        default=None,
+        help="Temperature sampling parameter. Only has effect on "
+        "openai-compatible backends. If not specified, default to greedy "
+        "decoding (i.e. temperature==0.0).")
+
     parser.add_argument(
         '--tokenizer-mode',
         type=str,

benchmarks/benchmark_serving_structured_output.py

@@ -11,7 +11,7 @@ On the client side, run:
         --model <your_model> \
         --dataset json \
         --structured-output-ratio 1.0 \
-        --structured-output-backend xgrammar \
+        --structured-output-backend auto \
         --request-rate 10 \
         --num-prompts 1000
 
@@ -51,7 +51,7 @@ try:
 except ImportError:
     from argparse import ArgumentParser as FlexibleArgumentParser
 
-from vllm.v1.structured_output.utils import (
+from vllm.v1.structured_output.backend_xgrammar import (
     has_xgrammar_unsupported_json_features)
 
 MILLISECONDS_TO_SECONDS_CONVERSION = 1000
@@ -130,10 +130,11 @@ def sample_requests(tokenizer: PreTrainedTokenizerBase,
                         "description":
                         "An unique optional field to avoid cached schemas"
                     }
+        else:
+            json_schemas = [schema] * args.num_prompts
 
         def gen_prompt(index: int):
-            schema = json_schemas[index % len(json_schemas)]
-            return f"Generate an example of a user profile given the following schema: {json.dumps(schema)}"  # noqa: E501
+            return f"Generate an example of a user profile given the following schema: {json.dumps(get_schema(index))}"  # noqa: E501
 
         def get_schema(index: int):
             return json_schemas[index % len(json_schemas)]
@@ -149,17 +150,17 @@ def sample_requests(tokenizer: PreTrainedTokenizerBase,
 
     elif args.dataset == "grammar":
         schema = """
-            ?start: select_statement
+        root ::= select_statement
 
-            ?select_statement: "SELECT " column_list " FROM " table_name
+        select_statement ::= "SELECT " column " from " table " where " condition
 
-            ?column_list: column_name ("," column_name)*
+        column ::= "col_1 " | "col_2 "
 
-            ?table_name: identifier
+        table ::= "table_1 " | "table_2 "
 
-            ?column_name: identifier
+        condition ::= column "= " number
 
-            ?identifier: /[a-zA-Z_][a-zA-Z0-9_]*/
+        number ::= "1 " | "2 "
         """
         prompt = "Generate an SQL query to show the 'username' \
             and 'email' from the 'users' table."
@@ -963,7 +964,7 @@ if __name__ == "__main__":
         "--percentile-metrics",
         type=str,
         default="ttft,tpot,itl",
-        help="Comma-seperated list of selected metrics to report percentils. "
+        help="Comma-separated list of selected metrics to report percentils. "
         "This argument specifies the metrics to report percentiles. "
         "Allowed metric names are \"ttft\", \"tpot\", \"itl\", \"e2el\". "
         "Default value is \"ttft,tpot,itl\".")
@@ -971,7 +972,7 @@ if __name__ == "__main__":
         "--metric-percentiles",
         type=str,
         default="99",
-        help="Comma-seperated list of percentiles for selected metrics. "
+        help="Comma-separated list of percentiles for selected metrics. "
         "To report 25-th, 50-th, and 75-th percentiles, use \"25,50,75\". "
         "Default value is \"99\". "
         "Use \"--percentile-metrics\" to select metrics.",
@@ -996,12 +997,14 @@ if __name__ == "__main__":
                         type=float,
                         default=1.0,
                         help="Ratio of Structured Outputs requests")
-    parser.add_argument(
-        "--structured-output-backend",
-        type=str,
-        choices=["outlines", "lm-format-enforcer", "xgrammar", "guidance"],
-        default="xgrammar",
-        help="Backend to use for structured outputs")
+    parser.add_argument("--structured-output-backend",
+                        type=str,
+                        choices=[
+                            "outlines", "lm-format-enforcer", "xgrammar",
+                            "guidance", "auto"
+                        ],
+                        default="auto",
+                        help="Backend to use for structured outputs")
 
     args = parser.parse_args()
     main(args)

benchmarks/benchmark_throughput.py

@@ -11,9 +11,11 @@ from typing import Any, Optional, Union
 
 import torch
 import uvloop
-from benchmark_dataset import SampleRequest
-from benchmark_utils import (convert_to_pytorch_benchmark_format, get_requests,
-                             validate_dataset, write_to_json)
+from benchmark_dataset import (AIMODataset, BurstGPTDataset,
+                               ConversationDataset, InstructCoderDataset,
+                               RandomDataset, SampleRequest, ShareGPTDataset,
+                               SonnetDataset, VisionArenaDataset)
+from benchmark_utils import convert_to_pytorch_benchmark_format, write_to_json
 from tqdm import tqdm
 from transformers import (AutoModelForCausalLM, AutoTokenizer,
                           PreTrainedTokenizerBase)
@@ -211,14 +213,17 @@ def run_hf(
     max_prompt_len = 0
     max_output_len = 0
     for i in range(len(requests)):
-        prompt, prompt_len, output_len = requests[i]
+        prompt = requests[i].prompt
+        prompt_len = requests[i].prompt_len
+        output_len = requests[i].expected_output_len
         # Add the prompt to the batch.
         batch.append(prompt)
         max_prompt_len = max(max_prompt_len, prompt_len)
         max_output_len = max(max_output_len, output_len)
         if len(batch) < max_batch_size and i != len(requests) - 1:
             # Check if we can add more requests to the batch.
-            _, next_prompt_len, next_output_len = requests[i + 1]
+            next_prompt_len = requests[i + 1].prompt_len
+            next_output_len = requests[i + 1].expected_output_len
             if (max(max_prompt_len, next_prompt_len) +
                     max(max_output_len, next_output_len)) <= 2048:
                 # We can add more requests to the batch.
@@ -285,6 +290,62 @@ def save_to_pytorch_benchmark_format(args: argparse.Namespace,
         write_to_json(pt_file, pt_records)
 
 
+def get_requests(args, tokenizer):
+    # Common parameters for all dataset types.
+    common_kwargs = {
+        "dataset_path": args.dataset_path,
+        "random_seed": args.seed,
+    }
+    sample_kwargs = {
+        "tokenizer": tokenizer,
+        "lora_path": args.lora_path,
+        "max_loras": args.max_loras,
+        "num_requests": args.num_prompts,
+        "input_len": args.input_len,
+        "output_len": args.output_len,
+    }
+
+    if args.dataset_path is None or args.dataset_name == "random":
+        sample_kwargs["range_ratio"] = args.random_range_ratio
+        sample_kwargs["prefix_len"] = args.prefix_len
+        dataset_cls = RandomDataset
+    elif args.dataset_name == "sharegpt":
+        dataset_cls = ShareGPTDataset
+        if args.backend == "vllm-chat":
+            sample_kwargs["enable_multimodal_chat"] = True
+    elif args.dataset_name == "sonnet":
+        assert tokenizer.chat_template or tokenizer.default_chat_template, (
+            "Tokenizer/model must have chat template for sonnet dataset.")
+        dataset_cls = SonnetDataset
+        sample_kwargs["prefix_len"] = args.prefix_len
+        sample_kwargs["return_prompt_formatted"] = True
+    elif args.dataset_name == "burstgpt":
+        dataset_cls = BurstGPTDataset
+    elif args.dataset_name == "hf":
+        if args.dataset_path in VisionArenaDataset.SUPPORTED_DATASET_PATHS:
+            dataset_cls = VisionArenaDataset
+            common_kwargs['dataset_subset'] = None
+            common_kwargs['dataset_split'] = "train"
+            sample_kwargs["enable_multimodal_chat"] = True
+        elif args.dataset_path in InstructCoderDataset.SUPPORTED_DATASET_PATHS:
+            dataset_cls = InstructCoderDataset
+            common_kwargs['dataset_split'] = "train"
+        elif args.dataset_path in ConversationDataset.SUPPORTED_DATASET_PATHS:
+            dataset_cls = ConversationDataset
+            common_kwargs['dataset_subset'] = args.hf_subset
+            common_kwargs['dataset_split'] = args.hf_split
+            sample_kwargs["enable_multimodal_chat"] = True
+        elif args.dataset_path in AIMODataset.SUPPORTED_DATASET_PATHS:
+            dataset_cls = AIMODataset
+            common_kwargs['dataset_subset'] = None
+            common_kwargs['dataset_split'] = "train"
+    else:
+        raise ValueError(f"Unknown dataset name: {args.dataset_name}")
+    # Remove None values
+    sample_kwargs = {k: v for k, v in sample_kwargs.items() if v is not None}
+    return dataset_cls(**common_kwargs).sample(**sample_kwargs)
+
+
 def main(args: argparse.Namespace):
     if args.seed is None:
         args.seed = 0
@@ -293,7 +354,7 @@ def main(args: argparse.Namespace):
     # Sample the requests.
     tokenizer = AutoTokenizer.from_pretrained(
         args.tokenizer, trust_remote_code=args.trust_remote_code)
-    requests = get_requests(args.num_prompts, args, tokenizer)
+    requests = get_requests(args, tokenizer)
     is_multi_modal = any(request.multi_modal_data is not None
                          for request in requests)
     request_outputs: Optional[list[RequestOutput]] = None
@@ -394,8 +455,48 @@ def validate_args(args):
     if args.backend not in valid_backends:
         raise ValueError(f"Unsupported backend: {args.backend}")
 
-    # === Dataset Validation ===
-    validate_dataset(args)
+    # === Dataset Configuration ===
+    if not args.dataset and not args.dataset_path:
+        print(
+            "When dataset path is not set, it will default to random dataset")
+        args.dataset_name = 'random'
+        if args.input_len is None:
+            raise ValueError("input_len must be provided for a random dataset")
+
+    # === Dataset Name Specific Checks ===
+    # --hf-subset and --hf-split: only used
+    # when dataset_name is 'hf'
+    if args.dataset_name != "hf" and (
+            getattr(args, "hf_subset", None) is not None
+            or getattr(args, "hf_split", None) is not None):
+        warnings.warn("--hf-subset and --hf-split will be ignored \
+                since --dataset-name is not 'hf'.",
+                      stacklevel=2)
+    elif args.dataset_name == "hf":
+        if args.dataset_path in (
+                VisionArenaDataset.SUPPORTED_DATASET_PATHS.keys()
+                | ConversationDataset.SUPPORTED_DATASET_PATHS):
+            assert args.backend == "vllm-chat", f"{args.dataset_path} needs to use vllm-chat as the backend."  #noqa: E501
+        elif args.dataset_path in (InstructCoderDataset.SUPPORTED_DATASET_PATHS
+                                   | AIMODataset.SUPPORTED_DATASET_PATHS):
+            assert args.backend == "vllm", f"{args.dataset_path} needs to use vllm as the backend."  #noqa: E501
+        else:
+            raise ValueError(
+                f"{args.dataset_path} is not supported by hf dataset.")
+
+    # --random-range-ratio: only used when dataset_name is 'random'
+    if args.dataset_name != 'random' and args.random_range_ratio is not None:
+        warnings.warn("--random-range-ratio will be ignored since \
+                --dataset-name is not 'random'.",
+                      stacklevel=2)
+
+    # --prefix-len: only used when dataset_name is 'random', 'sonnet', or not
+    # set.
+    if args.dataset_name not in {"random", "sonnet", None
+                                 } and args.prefix_len is not None:
+        warnings.warn("--prefix-len will be ignored since --dataset-name\
+                 is not 'random', 'sonnet', or not set.",
+                      stacklevel=2)
 
     # === LoRA Settings ===
     if getattr(args, "enable_lora", False) and args.backend != "vllm":
@@ -422,6 +523,13 @@ def validate_args(args):
         raise ValueError(
             "Tokenizer must be the same as the model for MII backend.")
 
+    # --data-parallel is not supported currently.
+    # https://github.com/vllm-project/vllm/issues/16222
+    if args.data_parallel_size > 1:
+        raise ValueError(
+            "Data parallel is not supported in offline benchmark, \
+            please use benchmark serving instead")
+
 
 if __name__ == "__main__":
     parser = FlexibleArgumentParser(description="Benchmark the throughput.")
@@ -435,6 +543,14 @@ if __name__ == "__main__":
         choices=["sharegpt", "random", "sonnet", "burstgpt", "hf"],
         help="Name of the dataset to benchmark on.",
         default="sharegpt")
+    parser.add_argument(
+        "--dataset",
+        type=str,
+        default=None,
+        help="Path to the ShareGPT dataset, will be deprecated in\
+            the next release. The dataset is expected to "
+        "be a json in form of list[dict[..., conversations: "
+        "list[dict[..., value: <prompt_or_response>]]]]")
     parser.add_argument("--dataset-path",
                         type=str,
                         default=None,
@@ -485,18 +601,30 @@ if __name__ == "__main__":
         default=None,
         help="Path to the lora adapters to use. This can be an absolute path, "
         "a relative path, or a Hugging Face model identifier.")
-    parser.add_argument("--prefix-len",
-                        type=int,
-                        default=None,
-                        help="Number of prefix tokens per request."
-                        "This is for the RandomDataset and SonnetDataset")
+    parser.add_argument(
+        "--prefix-len",
+        type=int,
+        default=None,
+        help=f"Number of prefix tokens to be used in RandomDataset "
+        "and SonnetDataset. For RandomDataset, the total input "
+        "length is the sum of prefix-len (default: "
+        f"{RandomDataset.DEFAULT_PREFIX_LEN}) and a random context length "
+        "sampled from [input_len * (1 - range_ratio), "
+        "input_len * (1 + range_ratio)]. For SonnetDataset, "
+        f"prefix_len (default: {SonnetDataset.DEFAULT_PREFIX_LEN}) "
+        "controls how much of the input is fixed lines versus "
+        "random lines, but the total input length remains approximately "
+        "input_len tokens.")
     # random dataset
     parser.add_argument(
         "--random-range-ratio",
         type=float,
         default=None,
-        help="Range of sampled ratio of input/output length, "
-        "used only for RandomDataSet.",
+        help=f"Range ratio (default : {RandomDataset.DEFAULT_RANGE_RATIO}) "
+        "for sampling input/output length, "
+        "used only for RandomDataset. Must be in the range [0, 1) to "
+        "define a symmetric sampling range "
+        "[length * (1 - range_ratio), length * (1 + range_ratio)].",
     )
 
     # hf dtaset

benchmarks/benchmark_utils.py

@@ -4,14 +4,8 @@ import argparse
 import json
 import math
 import os
-import warnings
 from typing import Any
 
-from benchmark_dataset import (BurstGPTDataset, ConversationDataset,
-                               InstructCoderDataset, RandomDataset,
-                               SampleRequest, ShareGPTDataset, SonnetDataset,
-                               VisionArenaDataset)
-
 
 def convert_to_pytorch_benchmark_format(args: argparse.Namespace,
                                         metrics: dict[str, list],
@@ -73,113 +67,3 @@ class InfEncoder(json.JSONEncoder):
 def write_to_json(filename: str, records: list) -> None:
     with open(filename, "w") as f:
         json.dump(records, f, cls=InfEncoder)
-
-
-def get_requests(num_requests: int, args: argparse.Namespace,
-                 tokenizer: Any) -> list[SampleRequest]:
-    """
-    Sample the requests for the benchmark.
-    """
-    # Common parameters for all dataset types.
-    common_kwargs = {
-        "dataset_path": args.dataset_path,
-        "random_seed": args.seed,
-    }
-    sample_kwargs = {
-        "tokenizer": tokenizer,
-        "lora_path": args.lora_path,
-        "max_loras": args.max_loras,
-        "num_requests": num_requests,
-        "input_len": args.input_len,
-        "output_len": args.output_len,
-    }
-
-    if args.dataset_path is None or args.dataset_name == "random":
-        sample_kwargs["range_ratio"] = args.random_range_ratio
-        sample_kwargs["prefix_len"] = args.prefix_len
-        dataset_cls = RandomDataset
-    elif args.dataset_name == "sharegpt":
-        dataset_cls = ShareGPTDataset
-        if getattr(args, "backend", False) and args.backend == "vllm-chat":
-            sample_kwargs["enable_multimodal_chat"] = True
-    elif args.dataset_name == "sonnet":
-        assert tokenizer.chat_template or tokenizer.default_chat_template, (
-            "Tokenizer/model must have chat template for sonnet dataset.")
-        dataset_cls = SonnetDataset
-        sample_kwargs["prefix_len"] = args.prefix_len
-        sample_kwargs["return_prompt_formatted"] = True
-    elif args.dataset_name == "burstgpt":
-        dataset_cls = BurstGPTDataset
-    elif args.dataset_name == "hf":
-        if args.dataset_path in VisionArenaDataset.SUPPORTED_DATASET_PATHS:
-            dataset_cls = VisionArenaDataset
-            common_kwargs['dataset_subset'] = None
-            common_kwargs['dataset_split'] = "train"
-            sample_kwargs["enable_multimodal_chat"] = True
-        elif args.dataset_path in InstructCoderDataset.SUPPORTED_DATASET_PATHS:
-            dataset_cls = InstructCoderDataset
-            common_kwargs['dataset_split'] = "train"
-        elif args.dataset_path in ConversationDataset.SUPPORTED_DATASET_PATHS:
-            dataset_cls = ConversationDataset
-            common_kwargs['dataset_subset'] = args.hf_subset
-            common_kwargs['dataset_split'] = args.hf_split
-            sample_kwargs["enable_multimodal_chat"] = True
-
-    else:
-        raise ValueError(f"Unknown dataset name: {args.dataset_name}")
-    # Remove None values
-    sample_kwargs = {k: v for k, v in sample_kwargs.items() if v is not None}
-    return dataset_cls(**common_kwargs).sample(**sample_kwargs)
-
-
-def validate_dataset(args: argparse.Namespace, ):
-    """
-    Validate the dataset arguments.
-    """
-    # === Dataset Configuration ===
-    if not args.dataset_path:
-        print(
-            "When dataset path is not set, it will default to random dataset")
-        args.dataset_name = 'random'
-        if args.input_len is None:
-            raise ValueError("input_len must be provided for a random dataset")
-
-    # === Dataset Name Specific Checks ===
-    # --hf-subset and --hf-split: only used
-    # when dataset_name is 'hf'
-    if args.dataset_name != "hf" and (
-            getattr(args, "hf_subset", None) is not None
-            or getattr(args, "hf_split", None) is not None):
-        warnings.warn("--hf-subset and --hf-split will be ignored \
-                since --dataset-name is not 'hf'.",
-                      stacklevel=2)
-    elif args.dataset_name == "hf":
-        if args.dataset_path in VisionArenaDataset.SUPPORTED_DATASET_PATHS:
-            assert getattr(
-                args, 'backend', None
-            ) and args.backend == "vllm-chat", "VisionArenaDataset needs to use vllm-chat as the backend."  #noqa: E501
-        elif args.dataset_path in InstructCoderDataset.SUPPORTED_DATASET_PATHS:
-            assert getattr(
-                args, 'backend', None
-            ) and args.backend == "vllm", "InstructCoder dataset needs to use vllm as the backend."  #noqa: E501
-        elif args.dataset_path in ConversationDataset.SUPPORTED_DATASET_PATHS:
-            assert getattr(
-                args, 'backend', None
-            ) and args.backend == "vllm-chat", "ConversationDataset needs to use vllm-chat as the backend."  #noqa: E501
-        else:
-            raise ValueError(
-                f"{args.dataset_path} is not supported by hf dataset.")
-
-    # --random-range-ratio: only used when dataset_name is 'random'
-    if args.dataset_name != 'random' and args.random_range_ratio is not None:
-        warnings.warn("--random-range-ratio will be ignored since \
-                --dataset-name is not 'random'.",
-                      stacklevel=2)
-
-    # --prefix-len: only used when dataset_name is 'random', 'sonnet', or not
-    # set.
-    if args.dataset_name not in {"random", "sonnet", None
-                                 } and args.prefix_len is not None:
-        warnings.warn("--prefix-len will be ignored since --dataset-name\
-                 is not 'random', 'sonnet', or not set.",
-                      stacklevel=2)

benchmarks/kernels/benchmark_bitblas.py

@@ -0,0 +1,236 @@
+# SPDX-License-Identifier: Apache-2.0
+# Copyright (c) Microsoft Corporation.
+# Licensed under the MIT License.
+
+from vllm.model_executor.layers.quantization.utils.bitblas_utils import (
+    MINIMUM_BITBLAS_VERSION)
+
+try:
+    import bitblas
+    if bitblas.__version__ < MINIMUM_BITBLAS_VERSION:
+        raise ImportError("bitblas version is wrong. Please "
+                          f"install bitblas>={MINIMUM_BITBLAS_VERSION}")
+except ImportError as e:
+    bitblas_import_exception = e
+    raise ValueError("Trying to use the bitblas backend, but could not import"
+                     f"with the following error: {bitblas_import_exception}. "
+                     "Please install bitblas through the following command: "
+                     f"`pip install bitblas>={MINIMUM_BITBLAS_VERSION}`"
+                     ) from bitblas_import_exception
+
+from bitblas import Matmul, MatmulConfig, auto_detect_nvidia_target
+
+from vllm.utils import FlexibleArgumentParser
+
+parser = FlexibleArgumentParser(
+    description="Benchmark BitBLAS int4 on a specific target.")
+
+# Add arguments to the parser
+parser.add_argument(
+    "--target",
+    type=str,
+    default=auto_detect_nvidia_target(),
+    help="Specify the target device for benchmarking.",
+)
+parser.add_argument("--group_size",
+                    type=int,
+                    default=None,
+                    help="Group size for grouped quantization.")
+parser.add_argument(
+    "--A_dtype",
+    type=str,
+    default="float16",
+    choices=["float16", "float32", "float64", "int32", "int8"],
+    help="Data type of activation A.",
+)
+parser.add_argument(
+    "--W_dtype",
+    type=str,
+    default="int4",
+    choices=[
+        "float16",
+        "float32",
+        "float64",
+        "int32",
+        "int8",
+        "int4",
+        "int2",
+        "int1",
+        "nf4",
+        "fp4_e2m1",
+    ],
+    help="Data type of weight W.",
+)
+parser.add_argument(
+    "--accum_dtype",
+    type=str,
+    default="float16",
+    choices=["float16", "int32"],
+    help="Data type for accumulation.",
+)
+parser.add_argument(
+    "--out_dtype",
+    type=str,
+    default="float16",
+    choices=["float16", "float32", "int32", "int8"],
+    help="Data type for output.",
+)
+parser.add_argument(
+    "--layout",
+    type=str,
+    default="nt",
+    choices=["nt", "nn"],
+    help="Matrix layout, 'nt' for non-transpose A and transpose W.",
+)
+parser.add_argument("--with_bias",
+                    action="store_true",
+                    help="Include bias in the benchmark.")
+parser.add_argument(
+    "--with_scaling",
+    action="store_true",
+    help="Include scaling factor in the quantization.",
+)
+parser.add_argument("--with_zeros",
+                    action="store_true",
+                    help="Include zeros in the quantization.")
+parser.add_argument(
+    "--zeros_mode",
+    type=str,
+    default=None,
+    choices=["original", "rescale", "quantized"],
+    help="Specify the mode for calculating zeros.",
+)
+
+# Parse the arguments
+args = parser.parse_args()
+
+# Assign arguments to variables
+target = args.target
+A_dtype = args.A_dtype
+W_dtype = args.W_dtype
+accum_dtype = args.accum_dtype
+out_dtype = args.out_dtype
+layout = args.layout
+with_bias = args.with_bias
+group_size = args.group_size
+with_scaling = args.with_scaling
+with_zeros = args.with_zeros
+zeros_mode = args.zeros_mode
+
+# Define a list of shared arguments that repeat in every config
+shared_args = [
+    A_dtype,
+    W_dtype,
+    out_dtype,
+    accum_dtype,
+    layout,
+    with_bias,
+    group_size,
+    with_scaling,
+    with_zeros,
+    zeros_mode,
+]
+
+# Define just the (M, K, N) shapes in a more compact list
+shapes = [
+    # square test
+    (1, 16384, 16384),
+    # BLOOM-176B
+    (1, 43008, 14336),
+    (1, 14336, 14336),
+    (1, 57344, 14336),
+    (1, 14336, 57344),
+    # OPT-65B
+    (1, 9216, 9216),
+    (1, 36864, 9216),
+    (1, 9216, 36864),
+    (1, 22016, 8192),
+    # LLAMA-70B/65B
+    (1, 8192, 22016),
+    (1, 8192, 8192),
+    (1, 28672, 8192),
+    (1, 8192, 28672),
+    # square test
+    (16384, 16384, 16384),
+    # BLOOM-176B
+    (8192, 43008, 14336),
+    (8192, 14336, 14336),
+    (8192, 57344, 14336),
+    (8192, 14336, 57344),
+    # OPT-65B
+    (8192, 9216, 9216),
+    (8192, 36864, 9216),
+    (8192, 9216, 36864),
+    (8192, 22016, 8192),
+    # LLAMA-70B/65B
+    (8192, 8192, 22016),
+    (8192, 8192, 8192),
+    (8192, 28672, 8192),
+    (8192, 8192, 28672),
+]
+
+# Build test shapes with all the shared arguments
+test_shapes = [(MatmulConfig, Matmul, (*shape, *shared_args))
+               for shape in shapes]
+
+benchmark_sets = []
+benchmark_sets.extend(test_shapes)
+
+benchmark_results = {}
+for config_class, operator, input_args in benchmark_sets:
+    config = config_class(*input_args)
+    matmul = operator(config, target=target, enable_tuning=True)
+    kernel_latency = matmul.profile_latency()
+
+    print("Time cost is: {:.3f} ms".format(kernel_latency))
+
+    profile_config = {
+        f"{operator.__name__}-{'-'.join([str(i) for i in input_args])}": {
+            "BitBLAS_top20_latency": kernel_latency,
+        }
+    }
+
+    benchmark_results.update(profile_config)
+
+# Define headers for the table
+headers = [
+    "PrimFunc",
+    "Input Arguments",
+    "BitBLAS Top20 Latency",
+]
+
+# Calculate column widths for pretty printing
+col_widths = [0, 0, 0]
+for config_key, values in benchmark_results.items():
+    args_split = config_key.split("-")
+    func_name = args_split[0]
+    input_args_str = "-".join(args_split[1:])
+    col_widths[0] = max(col_widths[0], len(func_name) + 2, len(headers[0]) + 2)
+    col_widths[1] = max(col_widths[1],
+                        len(input_args_str) + 2,
+                        len(headers[1]) + 2)
+    col_widths[2] = max(col_widths[2],
+                        len(f"{values['BitBLAS_top20_latency']:.3f} ms") + 2,
+                        len(headers[2]) + 2)
+    # break only if you want to measure widths from a single example;
+    # otherwise, let it loop over all items.
+
+# Print header
+for i, header in enumerate(headers):
+    headers[i] = header.ljust(col_widths[i])
+print("".join(headers))
+print("-" * sum(col_widths))
+
+# Print rows
+for config_key, values in benchmark_results.items():
+    args_split = config_key.split("-")
+    func_name = args_split[0]
+    input_args_str = "-".join(args_split[1:])
+    row = [
+        func_name,
+        input_args_str,
+        f"{values['BitBLAS_top20_latency']:.3f} ms",
+    ]
+    row_str = "".join(
+        [str(cell).ljust(col_widths[idx]) for idx, cell in enumerate(row)])
+    print(row_str)

benchmarks/kernels/benchmark_lora.py

@@ -17,8 +17,14 @@ from torch.utils.benchmark import Measurement as TMeasurement
 from utils import ArgPool, Bench, CudaGraphBenchParams
 from weight_shapes import WEIGHT_SHAPES
 
-from vllm.lora.ops.triton_ops import LoRAKernelMeta, lora_expand, lora_shrink
-from vllm.lora.ops.triton_ops.utils import _LORA_A_PTR_DICT, _LORA_B_PTR_DICT
+from vllm.triton_utils import HAS_TRITON
+
+if HAS_TRITON:
+    from vllm.lora.ops.triton_ops import (LoRAKernelMeta, lora_expand,
+                                          lora_shrink)
+    from vllm.lora.ops.triton_ops.utils import (_LORA_A_PTR_DICT,
+                                                _LORA_B_PTR_DICT)
+
 from vllm.utils import FlexibleArgumentParser
 
 DEFAULT_MODELS = list(WEIGHT_SHAPES.keys())

benchmarks/kernels/benchmark_moe.py

@@ -30,19 +30,18 @@ class BenchmarkConfig(TypedDict):
     num_stages: int
 
 
-def benchmark_config(
-    config: BenchmarkConfig,
-    num_tokens: int,
-    num_experts: int,
-    shard_intermediate_size: int,
-    hidden_size: int,
-    topk: int,
-    dtype: torch.dtype,
-    use_fp8_w8a8: bool,
-    use_int8_w8a16: bool,
-    num_iters: int = 100,
-    block_quant_shape: List[int] = None,
-) -> float:
+def benchmark_config(config: BenchmarkConfig,
+                     num_tokens: int,
+                     num_experts: int,
+                     shard_intermediate_size: int,
+                     hidden_size: int,
+                     topk: int,
+                     dtype: torch.dtype,
+                     use_fp8_w8a8: bool,
+                     use_int8_w8a16: bool,
+                     num_iters: int = 100,
+                     block_quant_shape: List[int] = None,
+                     use_deep_gemm: bool = False) -> float:
     init_dtype = torch.float16 if use_fp8_w8a8 else dtype
     x = torch.randn(num_tokens, hidden_size, dtype=dtype)
     if use_int8_w8a16:
@@ -115,22 +114,41 @@ def benchmark_config(
     def run():
         from vllm.model_executor.layers.fused_moe import override_config
         with override_config(config):
-            fused_moe(
-                x,
-                w1,
-                w2,
-                input_gating,
-                topk,
-                renormalize=True,
-                inplace=True,
-                use_fp8_w8a8=use_fp8_w8a8,
-                use_int8_w8a16=use_int8_w8a16,
-                w1_scale=w1_scale,
-                w2_scale=w2_scale,
-                a1_scale=a1_scale,
-                a2_scale=a2_scale,
-                block_shape=block_quant_shape,
-            )
+            if use_deep_gemm:
+                topk_weights, topk_ids = fused_topk(x, input_gating, topk,
+                                                    False)
+                return fused_experts(
+                    x,
+                    w1,
+                    w2,
+                    topk_weights,
+                    topk_ids,
+                    inplace=True,
+                    use_fp8_w8a8=use_fp8_w8a8,
+                    w1_scale=w1_scale,
+                    w2_scale=w2_scale,
+                    a1_scale=a1_scale,
+                    a2_scale=a2_scale,
+                    block_shape=block_quant_shape,
+                    allow_deep_gemm=True,
+                )
+            else:
+                fused_moe(
+                    x,
+                    w1,
+                    w2,
+                    input_gating,
+                    topk,
+                    renormalize=True,
+                    inplace=True,
+                    use_fp8_w8a8=use_fp8_w8a8,
+                    use_int8_w8a16=use_int8_w8a16,
+                    w1_scale=w1_scale,
+                    w2_scale=w2_scale,
+                    a1_scale=a1_scale,
+                    a2_scale=a2_scale,
+                    block_shape=block_quant_shape,
+                )
 
     # JIT compilation & warmup
     run()
@@ -366,6 +384,7 @@ class BenchmarkWorker:
         use_fp8_w8a8: bool,
         use_int8_w8a16: bool,
         block_quant_shape: List[int] = None,
+        use_deep_gemm: bool = False,
     ) -> tuple[dict[str, int], float]:
         current_platform.seed_everything(self.seed)
         dtype_str = get_config_dtype_str(dtype,
@@ -396,7 +415,8 @@ class BenchmarkWorker:
                                        use_fp8_w8a8,
                                        use_int8_w8a16,
                                        num_iters=100,
-                                       block_quant_shape=block_quant_shape)
+                                       block_quant_shape=block_quant_shape,
+                                       use_deep_gemm=use_deep_gemm)
         return config, kernel_time
 
     def tune(
@@ -411,6 +431,7 @@ class BenchmarkWorker:
         use_int8_w8a16: bool,
         search_space: list[dict[str, int]],
         block_quant_shape: list[int],
+        use_deep_gemm: bool,
     ) -> dict[str, int]:
         best_config = None
         best_time = float("inf")
@@ -436,7 +457,8 @@ class BenchmarkWorker:
                         use_fp8_w8a8,
                         use_int8_w8a16,
                         num_iters=20,
-                        block_quant_shape=block_quant_shape)
+                        block_quant_shape=block_quant_shape,
+                        use_deep_gemm=use_deep_gemm)
                 except triton.runtime.autotuner.OutOfResources:
                     # Some configurations may be invalid and fail to compile.
                     continue
@@ -531,6 +553,8 @@ def main(args: argparse.Namespace):
         intermediate_size = config.moe_intermediate_size
         shard_intermediate_size = 2 * intermediate_size // args.tp_size
     else:
+        # Support for llama4
+        config = config.get_text_config()
         # Default: Mixtral.
         E = config.num_local_experts
         topk = config.num_experts_per_tok
@@ -550,6 +574,8 @@ def main(args: argparse.Namespace):
     else:
         batch_sizes = [args.batch_size]
 
+    use_deep_gemm = bool(args.use_deep_gemm)
+
     ray.init()
     num_gpus = int(ray.available_resources()["GPU"])
     workers = [BenchmarkWorker.remote(args.seed) for _ in range(num_gpus)]
@@ -572,10 +598,10 @@ def main(args: argparse.Namespace):
 
         start = time.time()
         configs = _distribute(
-            "tune",
-            [(batch_size, E, shard_intermediate_size, hidden_size, topk, dtype,
-              use_fp8_w8a8, use_int8_w8a16, search_space, block_quant_shape)
-             for batch_size in batch_sizes])
+            "tune", [(batch_size, E, shard_intermediate_size, hidden_size,
+                      topk, dtype, use_fp8_w8a8, use_int8_w8a16, search_space,
+                      block_quant_shape, use_deep_gemm)
+                     for batch_size in batch_sizes])
         best_configs = {
             M: sort_config(config)
             for M, config in zip(batch_sizes, configs)
@@ -589,7 +615,7 @@ def main(args: argparse.Namespace):
         outputs = _distribute(
             "benchmark",
             [(batch_size, E, shard_intermediate_size, hidden_size, topk, dtype,
-              use_fp8_w8a8, use_int8_w8a16, block_quant_shape)
+              use_fp8_w8a8, use_int8_w8a16, block_quant_shape, use_deep_gemm)
              for batch_size in batch_sizes])
 
         for batch_size, (config, kernel_time) in zip(batch_sizes, outputs):
@@ -611,6 +637,7 @@ if __name__ == "__main__":
                         type=str,
                         choices=["auto", "fp8_w8a8", "int8_w8a16"],
                         default="auto")
+    parser.add_argument("--use-deep-gemm", action="store_true")
     parser.add_argument("--seed", type=int, default=0)
     parser.add_argument("--batch-size", type=int, required=False)
     parser.add_argument("--tune", action="store_true")

cmake/cpu_extension.cmake

@@ -33,8 +33,6 @@ endif()
 
 if(MACOSX_FOUND)
     list(APPEND CXX_COMPILE_FLAGS
-        "-Xpreprocessor"
-        "-fopenmp"
         "-DVLLM_CPU_EXTENSION")
 else()
     list(APPEND CXX_COMPILE_FLAGS
@@ -197,6 +195,7 @@ set(VLLM_EXT_SRC
 if (AVX512_FOUND AND NOT AVX512_DISABLED)
     set(VLLM_EXT_SRC
         "csrc/cpu/quant.cpp"
+        "csrc/cpu/shm.cpp"
         ${VLLM_EXT_SRC})
 endif()
 

cmake/external_projects/vllm_flash_attn.cmake

@@ -38,7 +38,7 @@ else()
   FetchContent_Declare(
           vllm-flash-attn
           GIT_REPOSITORY https://github.com/vllm-project/flash-attention.git
-          GIT_TAG dc9d410b3e2d6534a4c70724c2515f4def670a22
+          GIT_TAG 8798f27777fb57f447070301bf33a9f9c607f491
           GIT_PROGRESS TRUE
           # Don't share the vllm-flash-attn build between build types
           BINARY_DIR ${CMAKE_BINARY_DIR}/vllm-flash-attn

csrc/attention/merge_attn_states.cu

@@ -0,0 +1,178 @@
+#include <optional>
+#include <torch/all.h>
+#include <ATen/cuda/CUDAContext.h>
+#include <c10/cuda/CUDAGuard.h>
+#include <algorithm>
+
+#include "attention_dtypes.h"
+#include "attention_utils.cuh"
+
+namespace vllm {
+
+// Implements section 2.2 of https://www.arxiv.org/pdf/2501.01005
+// can be used to combine partial attention results (in the split-KV case)
+template <typename scalar_t, const uint NUM_THREADS>
+__global__ void merge_attn_states_kernel(
+    scalar_t* output, float* output_lse, const scalar_t* prefix_output,
+    const float* prefix_lse, const scalar_t* suffix_output,
+    const float* suffix_lse, const uint num_tokens, const uint num_heads,
+    const uint head_size) {
+  using pack_128b_t = uint4;
+  const uint pack_size = 16 / sizeof(scalar_t);
+  const uint threads_per_head = head_size / pack_size;
+
+  const uint global_idx = blockIdx.x * NUM_THREADS + threadIdx.x;
+  const uint token_head_threads = num_tokens * num_heads * threads_per_head;
+
+  if (global_idx >= token_head_threads) return;
+
+  // global_idx -> token_idx + head_idx + pack_idx
+  const uint token_head_idx = global_idx / threads_per_head;
+  const uint pack_idx = global_idx % threads_per_head;
+
+  const uint token_idx = token_head_idx / num_heads;
+  const uint head_idx = token_head_idx % num_heads;
+
+  const uint pack_offset = pack_idx * pack_size;  // (0~15)*8, etc.
+  const uint head_offset =
+      token_idx * num_heads * head_size + head_idx * head_size;
+  const scalar_t* prefix_head_ptr = prefix_output + head_offset;
+  const scalar_t* suffix_head_ptr = suffix_output + head_offset;
+  scalar_t* output_head_ptr = output + head_offset;
+
+  float p_lse = prefix_lse[head_idx * num_tokens + token_idx];
+  float s_lse = suffix_lse[head_idx * num_tokens + token_idx];
+  p_lse = std::isinf(p_lse) ? -std::numeric_limits<float>::infinity() : p_lse;
+  s_lse = std::isinf(s_lse) ? -std::numeric_limits<float>::infinity() : s_lse;
+
+  const float max_lse = fmaxf(p_lse, s_lse);
+  p_lse = p_lse - max_lse;
+  s_lse = s_lse - max_lse;
+  const float p_se = expf(p_lse);
+  const float s_se = expf(s_lse);
+  const float out_se = p_se + s_se;
+  const float p_scale = p_se / out_se;
+  const float s_scale = s_se / out_se;
+
+  if (pack_offset < head_size) {
+    // Pack 128b load
+    pack_128b_t p_out_pack = reinterpret_cast<const pack_128b_t*>(
+        prefix_head_ptr)[pack_offset / pack_size];
+    pack_128b_t s_out_pack = reinterpret_cast<const pack_128b_t*>(
+        suffix_head_ptr)[pack_offset / pack_size];
+    pack_128b_t o_out_pack;
+
+#pragma unroll
+    for (uint i = 0; i < pack_size; ++i) {
+      // Always use float for FMA to keep high precision.
+      // half(uint16_t), bfloat16, float -> float.
+      const float p_out_f =
+          vllm::to_float(reinterpret_cast<const scalar_t*>(&p_out_pack)[i]);
+      const float s_out_f =
+          vllm::to_float(reinterpret_cast<const scalar_t*>(&s_out_pack)[i]);
+      // fma: a * b + c = p_out_f * p_scale + (s_out_f * s_scale)
+      const float o_out_f = p_out_f * p_scale + (s_out_f * s_scale);
+      // float -> half(uint16_t), bfloat16, float.
+      vllm::from_float(reinterpret_cast<scalar_t*>(&o_out_pack)[i], o_out_f);
+    }
+
+    // Pack 128b storage
+    reinterpret_cast<pack_128b_t*>(output_head_ptr)[pack_offset / pack_size] =
+        o_out_pack;
+  }
+  // We only need to write to output_lse once per head.
+  if (output_lse != nullptr && pack_idx == 0) {
+    float out_lse = logf(out_se) + max_lse;
+    output_lse[head_idx * num_tokens + token_idx] = out_lse;
+  }
+}
+
+}  // namespace vllm
+
+// The following macro is used to dispatch the conversion function based on
+// the output data type. The FN is a macro that calls a function with
+// template<typename scalar_t>.
+#define DISPATCH_BY_SCALAR_DTYPE(scalar_dtype, fn)                      \
+  {                                                                     \
+    if (scalar_dtype == at::ScalarType::Float) {                        \
+      fn(float);                                                        \
+    } else if (scalar_dtype == at::ScalarType::Half) {                  \
+      fn(uint16_t);                                                     \
+    } else if (scalar_dtype == at::ScalarType::BFloat16) {              \
+      fn(__nv_bfloat16);                                                \
+    } else {                                                            \
+      TORCH_CHECK(false, "Unsupported data type of O: ", scalar_dtype); \
+    }                                                                   \
+  }
+
+#define LAUNCH_MERGE_ATTN_STATES(scalar_t, NUM_THREADS)                     \
+  {                                                                         \
+    vllm::merge_attn_states_kernel<scalar_t, NUM_THREADS>                   \
+        <<<grid, block, 0, stream>>>(                                       \
+            reinterpret_cast<scalar_t*>(output.data_ptr()), output_lse_ptr, \
+            reinterpret_cast<scalar_t*>(prefix_output.data_ptr()),          \
+            reinterpret_cast<float*>(prefix_lse.data_ptr()),                \
+            reinterpret_cast<scalar_t*>(suffix_output.data_ptr()),          \
+            reinterpret_cast<float*>(suffix_lse.data_ptr()), num_tokens,    \
+            num_heads, head_size);                                          \
+  }
+
+/*@brief Merges the attention states from prefix and suffix
+ * into the output tensor. NUM_TOKENS: n, NUM_HEADS: h, HEAD_SIZE: d
+ *
+ * @param output [n,h,d] The output tensor to store the merged attention states.
+ * @param output_lse [h,d] Optional tensor to store the log-sum-exp values.
+ * @param prefix_output [n,h,d] The prefix attention states.
+ * @param prefix_lse [h,n] The log-sum-exp values for the prefix attention
+ * states.
+ * @param suffix_output [n,h,d] The suffix attention states.
+ * @param suffix_lse [h,n] The log-sum-exp values for the suffix attention
+ * states.
+ */
+template <typename scalar_t>
+void merge_attn_states_launcher(torch::Tensor& output,
+                                std::optional<torch::Tensor> output_lse,
+                                const torch::Tensor& prefix_output,
+                                const torch::Tensor& prefix_lse,
+                                const torch::Tensor& suffix_output,
+                                const torch::Tensor& suffix_lse) {
+  constexpr uint NUM_THREADS = 128;
+  const uint num_tokens = output.size(0);
+  const uint num_heads = output.size(1);
+  const uint head_size = output.size(2);
+  const uint pack_size = 16 / sizeof(scalar_t);
+  TORCH_CHECK(head_size % pack_size == 0,
+              "headsize must be multiple of pack_size:", pack_size);
+  float* output_lse_ptr = nullptr;
+  if (output_lse.has_value()) {
+    output_lse_ptr = output_lse.value().data_ptr<float>();
+  }
+  // Process one pack elements per thread. for float, the
+  // pack_size is 4 for half/bf16, the pack_size is 8.
+  const uint threads_per_head = head_size / pack_size;
+  const uint total_threads = num_tokens * num_heads * threads_per_head;
+
+  dim3 block(NUM_THREADS);
+  dim3 grid((total_threads + NUM_THREADS - 1) / NUM_THREADS);
+
+  const c10::cuda::OptionalCUDAGuard device_guard(prefix_output.device());
+  auto stream = at::cuda::getCurrentCUDAStream();
+
+  LAUNCH_MERGE_ATTN_STATES(scalar_t, NUM_THREADS);
+}
+
+#define CALL_MERGE_ATTN_STATES_LAUNCHER(scalar_t)                           \
+  {                                                                         \
+    merge_attn_states_launcher<scalar_t>(output, output_lse, prefix_output, \
+                                         prefix_lse, suffix_output,         \
+                                         suffix_lse);                       \
+  }
+
+void merge_attn_states(torch::Tensor& output,
+                       std::optional<torch::Tensor> output_lse,
+                       const torch::Tensor& prefix_output,
+                       const torch::Tensor& prefix_lse,
+                       const torch::Tensor& suffix_output,
+                       const torch::Tensor& suffix_lse) {
+  DISPATCH_BY_SCALAR_DTYPE(output.dtype(), CALL_MERGE_ATTN_STATES_LAUNCHER);
+}

csrc/attention/mla/cutlass_mla_entry.cu

@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2025, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <torch/all.h>
+
+#if defined ENABLE_CUTLASS_MLA && ENABLE_CUTLASS_MLA
+void cutlass_mla_decode_sm100a(torch::Tensor const& out,
+                               torch::Tensor const& q_nope,
+                               torch::Tensor const& q_pe,
+                               torch::Tensor const& kv_c_and_k_pe_cache,
+                               torch::Tensor const& seq_lens,
+                               torch::Tensor const& page_table, double scale);
+#endif
+
+void cutlass_mla_decode(torch::Tensor const& out, torch::Tensor const& q_nope,
+                        torch::Tensor const& q_pe,
+                        torch::Tensor const& kv_c_and_k_pe_cache,
+                        torch::Tensor const& seq_lens,
+                        torch::Tensor const& page_table, double scale) {
+#if defined ENABLE_CUTLASS_MLA && ENABLE_CUTLASS_MLA
+  return cutlass_mla_decode_sm100a(out, q_nope, q_pe, kv_c_and_k_pe_cache,
+                                   seq_lens, page_table, scale);
+#endif
+  TORCH_CHECK_NOT_IMPLEMENTED(false, "No compiled cutlass MLA");
+}

csrc/attention/mla/cutlass_mla_kernels.cu

@@ -0,0 +1,225 @@
+/*
+ * Copyright (c) 2025, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <torch/all.h>
+
+#include <ATen/cuda/CUDAContext.h>
+#include <c10/cuda/CUDAGuard.h>
+
+#include "cute/tensor.hpp"
+
+#include "cutlass/cutlass.h"
+#include "cutlass/kernel_hardware_info.h"
+
+#include "cutlass_extensions/common.hpp"
+
+#include "device/sm100_mla.hpp"
+#include "kernel/sm100_mla_tile_scheduler.hpp"
+
+using namespace cute;
+using namespace cutlass::fmha::kernel;
+
+template <typename T, bool PersistenceOption = true>
+struct MlaSm100 {
+  using Element = T;
+  using ElementAcc = float;
+  using ElementOut = T;
+
+  using TileShape = Shape<_128, _128, Shape<_512, _64>>;
+  using TileShapeH = cute::tuple_element_t<0, TileShape>;
+  using TileShapeD = cute::tuple_element_t<2, TileShape>;
+
+  // H K (D_latent D_rope) B
+  using ProblemShape = cute::tuple<TileShapeH, int, TileShapeD, int>;
+
+  using StrideQ = cute::tuple<int64_t, _1, int64_t>;  // H D B
+  using StrideK = cute::tuple<int64_t, _1, int64_t>;  // K D B
+  using StrideO = StrideK;                            // H D B
+  using StrideLSE = cute::tuple<_1, int>;             // H B
+
+  using TileScheduler =
+      std::conditional_t<PersistenceOption, Sm100MlaPersistentTileScheduler,
+                         Sm100MlaIndividualTileScheduler>;
+
+  using FmhaKernel =
+      cutlass::fmha::kernel::Sm100FmhaMlaKernelTmaWarpspecialized<
+          TileShape, Element, ElementAcc, ElementOut, ElementAcc, TileScheduler,
+          /*kIsCpAsync=*/true>;
+  using Fmha = cutlass::fmha::device::MLA<FmhaKernel>;
+};
+
+template <typename T>
+typename T::Fmha::Arguments args_from_options(
+    at::Tensor const& out, at::Tensor const& q_nope, at::Tensor const& q_pe,
+    at::Tensor const& kv_c_and_k_pe_cache, at::Tensor const& seq_lens,
+    at::Tensor const& page_table, double scale) {
+  cutlass::KernelHardwareInfo hw_info;
+  hw_info.device_id = q_nope.device().index();
+  hw_info.sm_count =
+      cutlass::KernelHardwareInfo::query_device_multiprocessor_count(
+          hw_info.device_id);
+
+  int batches = q_nope.sizes()[0];
+  int page_count_per_seq = page_table.sizes()[1];
+  int page_count_total = kv_c_and_k_pe_cache.sizes()[0];
+  int page_size = kv_c_and_k_pe_cache.sizes()[1];
+  int max_seq_len = page_size * page_count_per_seq;
+  using TileShapeH = typename T::TileShapeH;
+  using TileShapeD = typename T::TileShapeD;
+  auto problem_shape =
+      cute::make_tuple(TileShapeH{}, max_seq_len, TileShapeD{}, batches);
+
+  auto [H, K, D, B] = problem_shape;
+  auto [D_latent, D_rope] = D;
+
+  using StrideQ = typename T::StrideQ;
+  using StrideK = typename T::StrideK;
+  using StrideO = typename T::StrideO;
+  using StrideLSE = typename T::StrideLSE;
+
+  StrideQ stride_Q_latent = cute::make_tuple(
+      static_cast<int64_t>(D_latent), _1{}, static_cast<int64_t>(H * D_latent));
+  StrideQ stride_Q_rope = cute::make_tuple(static_cast<int64_t>(D_rope), _1{},
+                                           static_cast<int64_t>(H * D_rope));
+  StrideK stride_C =
+      cute::make_tuple(static_cast<int64_t>(D_latent + D_rope), _1{},
+                       static_cast<int64_t>(page_size * (D_latent + D_rope)));
+  StrideLSE stride_PT = cute::make_stride(_1{}, page_count_per_seq);
+  StrideLSE stride_LSE = cute::make_tuple(_1{}, static_cast<int>(H));
+  StrideO stride_O = cute::make_tuple(static_cast<int64_t>(D_latent), _1{},
+                                      static_cast<int64_t>(H * D_latent));
+
+  using Element = typename T::Element;
+  using ElementOut = typename T::ElementOut;
+  using ElementAcc = typename T::ElementAcc;
+  auto Q_latent_ptr = static_cast<Element*>(q_nope.data_ptr());
+  auto Q_rope_ptr = static_cast<Element*>(q_pe.data_ptr());
+  auto C_ptr = static_cast<Element*>(kv_c_and_k_pe_cache.data_ptr());
+  auto scale_f = static_cast<float>(scale);
+  typename T::Fmha::Arguments arguments{
+      problem_shape,
+      {scale_f, Q_latent_ptr, stride_Q_latent, Q_rope_ptr, stride_Q_rope, C_ptr,
+       stride_C, C_ptr + D_latent, stride_C,
+       static_cast<int*>(seq_lens.data_ptr()),
+       static_cast<int*>(page_table.data_ptr()), stride_PT, page_count_total,
+       page_size},
+      {static_cast<ElementOut*>(out.data_ptr()), stride_O,
+       static_cast<ElementAcc*>(nullptr), stride_LSE},
+      hw_info,
+      -1,       // split_kv
+      nullptr,  // is_var_split_kv
+  };
+  // TODO(kaixih@nvidia): When split_kv=-1 and is_var_split_kv=false, we compute
+  // split_kv automatically based on batch size and sequence length to balance
+  // workload across available SMs. Consider using var_split_kv for manual
+  // control if needed.
+  T::Fmha::set_split_kv(arguments);
+  return arguments;
+}
+
+template <typename Element>
+void runMla(at::Tensor const& out, at::Tensor const& q_nope,
+            at::Tensor const& q_pe, at::Tensor const& kv_c_and_k_pe_cache,
+            at::Tensor const& seq_lens, at::Tensor const& page_table,
+            float scale, cudaStream_t stream) {
+  using MlaSm100Type = MlaSm100<Element>;
+  typename MlaSm100Type::Fmha fmha;
+  auto arguments = args_from_options<MlaSm100Type>(
+      out, q_nope, q_pe, kv_c_and_k_pe_cache, seq_lens, page_table, scale);
+  size_t workspace_size = MlaSm100Type::Fmha::get_workspace_size(arguments);
+  auto const workspace_options =
+      torch::TensorOptions().dtype(torch::kUInt8).device(q_nope.device());
+  auto workspace = torch::empty(workspace_size, workspace_options);
+
+  CUTLASS_CHECK(fmha.can_implement(arguments));
+
+  CUTLASS_CHECK(fmha.initialize(arguments, workspace.data_ptr(), stream));
+
+  CUTLASS_CHECK(fmha.run(arguments, workspace.data_ptr(), stream));
+}
+
+void cutlass_mla_decode_sm100a(torch::Tensor const& out,
+                               torch::Tensor const& q_nope,
+                               torch::Tensor const& q_pe,
+                               torch::Tensor const& kv_c_and_k_pe_cache,
+                               torch::Tensor const& seq_lens,
+                               torch::Tensor const& page_table, double scale) {
+  TORCH_CHECK(q_nope.device().is_cuda(), "q_nope must be on CUDA");
+  TORCH_CHECK(q_nope.dim() == 3, "q_nope must be a 3D tensor");
+  TORCH_CHECK(q_pe.dim() == 3, "q_pe must be a 3D tensor");
+  TORCH_CHECK(kv_c_and_k_pe_cache.dim() == 3,
+              "kv_c_and_k_pe_cache must be a 3D tensor");
+  TORCH_CHECK(seq_lens.dim() == 1, "seq_lens must be a 1D tensor");
+  TORCH_CHECK(page_table.dim() == 2, "page_table must be a 2D tensor");
+  TORCH_CHECK(out.dim() == 3, "out must be a 3D tensor");
+
+  auto B_q_nope = q_nope.size(0);
+  auto H_q_nope = q_nope.size(1);
+  auto D_q_nope = q_nope.size(2);
+  auto B_q_pe = q_pe.size(0);
+  auto H_q_pe = q_pe.size(1);
+  auto D_q_pe = q_pe.size(2);
+  auto B_pt = page_table.size(0);
+  auto PAGE_NUM = page_table.size(1);
+  auto PAGE_SIZE = kv_c_and_k_pe_cache.size(1);
+  auto D_ckv = kv_c_and_k_pe_cache.size(2);
+  auto B_o = out.size(0);
+  auto H_o = out.size(1);
+  auto D_o = out.size(2);
+
+  TORCH_CHECK(D_q_nope == 512, "D_q_nope must be equal to 512");
+  TORCH_CHECK(D_q_pe == 64, "D_q_pe must be equal to 64");
+  TORCH_CHECK(D_ckv == 576, "D_ckv must be equal to 576");
+  TORCH_CHECK(H_q_nope == H_q_pe && H_q_nope == H_o && H_o == 128,
+              "H_q_nope, H_q_pe, and H_o must be equal to 128");
+  TORCH_CHECK(PAGE_SIZE > 0 && (PAGE_SIZE & (PAGE_SIZE - 1)) == 0,
+              "PAGE_SIZE must be a power of 2");
+  TORCH_CHECK(
+      B_q_nope == B_q_pe && B_q_nope == B_pt && B_q_nope == B_o,
+      "Batch dims must be same for page_table, q_nope and q_pe, and out");
+  TORCH_CHECK(PAGE_NUM % (128 / PAGE_SIZE) == 0,
+              "PAGE_NUM must be divisible by 128 / PAGE_SIZE");
+  TORCH_CHECK(D_o == 512, "D_o must be equal to 512");
+
+  TORCH_CHECK(q_nope.dtype() == at::ScalarType::Half ||
+                  q_nope.dtype() == at::ScalarType::BFloat16 ||
+                  q_nope.dtype() == at::ScalarType::Float8_e4m3fn,
+              "q_nope must be a half, bfloat16, or float8_e4m3fn tensor");
+  TORCH_CHECK(kv_c_and_k_pe_cache.dtype() == q_nope.dtype() &&
+                  q_nope.dtype() == q_pe.dtype(),
+              "kv_c_and_k_pe_cache, q_nope, and q_pe must be the same type");
+  TORCH_CHECK(seq_lens.dtype() == torch::kInt32,
+              "seq_lens must be a 32-bit integer tensor");
+  TORCH_CHECK(page_table.dtype() == torch::kInt32,
+              "page_table must be a 32-bit integer tensor");
+
+  auto in_dtype = q_nope.dtype();
+  at::cuda::CUDAGuard device_guard{(char)q_nope.get_device()};
+  const cudaStream_t stream =
+      at::cuda::getCurrentCUDAStream(q_nope.get_device());
+  if (in_dtype == at::ScalarType::Half) {
+    runMla<cutlass::half_t>(out, q_nope, q_pe, kv_c_and_k_pe_cache, seq_lens,
+                            page_table, scale, stream);
+  } else if (in_dtype == at::ScalarType::BFloat16) {
+    runMla<cutlass::bfloat16_t>(out, q_nope, q_pe, kv_c_and_k_pe_cache,
+                                seq_lens, page_table, scale, stream);
+  } else if (in_dtype == at::ScalarType::Float8_e4m3fn) {
+    runMla<cutlass::float_e4m3_t>(out, q_nope, q_pe, kv_c_and_k_pe_cache,
+                                  seq_lens, page_table, scale, stream);
+  } else {
+    TORCH_CHECK(false, "Unsupported input data type of MLA");
+  }
+}

csrc/cache_kernels.cu

@@ -270,9 +270,10 @@ __global__ void reshape_and_cache_flash_kernel(
     cache_t* __restrict__ value_cache,   // [num_blocks, block_size, num_heads,
                                          // head_size]
     const int64_t* __restrict__ slot_mapping,  // [num_tokens]
-    const int block_stride, const int key_stride, const int value_stride,
-    const int num_heads, const int head_size, const int block_size,
-    const float* k_scale, const float* v_scale) {
+    const int64_t block_stride, const int64_t page_stride,
+    const int64_t head_stride, const int64_t key_stride,
+    const int64_t value_stride, const int num_heads, const int head_size,
+    const int block_size, const float* k_scale, const float* v_scale) {
   const int64_t token_idx = blockIdx.x;
   const int64_t slot_idx = slot_mapping[token_idx];
   // NOTE: slot_idx can be -1 if the token is padded
@@ -288,8 +289,8 @@ __global__ void reshape_and_cache_flash_kernel(
     const int head_idx = i / head_size;
     const int head_offset = i % head_size;
     const int64_t tgt_key_value_idx = block_idx * block_stride +
-                                      block_offset * num_heads * head_size +
-                                      head_idx * head_size + head_offset;
+                                      block_offset * page_stride +
+                                      head_idx * head_stride + head_offset;
     scalar_t tgt_key = key[src_key_idx];
     scalar_t tgt_value = value[src_value_idx];
     if constexpr (kv_dt == Fp8KVCacheDataType::kAuto) {
@@ -396,16 +397,16 @@ void reshape_and_cache(
 // KV_T is the data type of key and value tensors.
 // CACHE_T is the stored data type of kv-cache.
 // KV_DTYPE is the real data type of kv-cache.
-#define CALL_RESHAPE_AND_CACHE_FLASH(KV_T, CACHE_T, KV_DTYPE)         \
-  vllm::reshape_and_cache_flash_kernel<KV_T, CACHE_T, KV_DTYPE>       \
-      <<<grid, block, 0, stream>>>(                                   \
-          reinterpret_cast<KV_T*>(key.data_ptr()),                    \
-          reinterpret_cast<KV_T*>(value.data_ptr()),                  \
-          reinterpret_cast<CACHE_T*>(key_cache.data_ptr()),           \
-          reinterpret_cast<CACHE_T*>(value_cache.data_ptr()),         \
-          slot_mapping.data_ptr<int64_t>(), block_stride, key_stride, \
-          value_stride, num_heads, head_size, block_size,             \
-          reinterpret_cast<const float*>(k_scale.data_ptr()),         \
+#define CALL_RESHAPE_AND_CACHE_FLASH(KV_T, CACHE_T, KV_DTYPE)             \
+  vllm::reshape_and_cache_flash_kernel<KV_T, CACHE_T, KV_DTYPE>           \
+      <<<grid, block, 0, stream>>>(                                       \
+          reinterpret_cast<KV_T*>(key.data_ptr()),                        \
+          reinterpret_cast<KV_T*>(value.data_ptr()),                      \
+          reinterpret_cast<CACHE_T*>(key_cache.data_ptr()),               \
+          reinterpret_cast<CACHE_T*>(value_cache.data_ptr()),             \
+          slot_mapping.data_ptr<int64_t>(), block_stride, page_stride,    \
+          head_stride, key_stride, value_stride, num_heads, head_size,    \
+          block_size, reinterpret_cast<const float*>(k_scale.data_ptr()), \
           reinterpret_cast<const float*>(v_scale.data_ptr()));
 
 void reshape_and_cache_flash(
@@ -432,9 +433,11 @@ void reshape_and_cache_flash(
   int head_size = key.size(2);
   int block_size = key_cache.size(1);
 
-  int key_stride = key.stride(0);
-  int value_stride = value.stride(0);
-  int block_stride = key_cache.stride(0);
+  int64_t key_stride = key.stride(0);
+  int64_t value_stride = value.stride(0);
+  int64_t block_stride = key_cache.stride(0);
+  int64_t page_stride = key_cache.stride(1);
+  int64_t head_stride = key_cache.stride(2);
   TORCH_CHECK(key_cache.stride(0) == value_cache.stride(0));
 
   dim3 grid(num_tokens);

csrc/cpu/cpu_types_x86.hpp

@@ -78,9 +78,14 @@ struct FP16Vec16 : public Vec<FP16Vec16> {
 
   __m256i reg;
 
+  // normal load
   explicit FP16Vec16(const void* ptr)
       : reg((__m256i)_mm256_loadu_si256((__m256i*)ptr)) {}
 
+  // non-temproal load
+  explicit FP16Vec16(bool, void* ptr)
+      : reg(_mm256_stream_load_si256((__m256i*)ptr)) {}
+
   explicit FP16Vec16(const FP32Vec16&);
 
   void save(void* ptr) const { *reinterpret_cast<__m256i*>(ptr) = reg; }
@@ -110,9 +115,14 @@ struct BF16Vec16 : public Vec<BF16Vec16> {
 
   __m256i reg;
 
+  // normal load
   explicit BF16Vec16(const void* ptr)
       : reg((__m256i)_mm256_loadu_si256((__m256i*)ptr)) {}
 
+  // non-temproal load
+  explicit BF16Vec16(bool, void* ptr)
+      : reg(_mm256_stream_load_si256((__m256i*)ptr)) {}
+
   explicit BF16Vec16(const FP32Vec16&);
 
   void save(void* ptr) const { *reinterpret_cast<__m256i*>(ptr) = reg; }
@@ -313,8 +323,13 @@ struct FP32Vec16 : public Vec<FP32Vec16> {
 
   explicit FP32Vec16() : reg(_mm512_set1_ps(0.0)) {}
 
+  // normal load
   explicit FP32Vec16(const float* ptr) : reg(_mm512_loadu_ps(ptr)) {}
 
+  // non-temproal load
+  explicit FP32Vec16(bool, void* ptr)
+      : reg((__m512)_mm512_stream_load_si512(ptr)) {}
+
   explicit FP32Vec16(__m512 data) : reg(data) {}
 
   explicit FP32Vec16(const FP32Vec4& data)
@@ -547,6 +562,33 @@ struct INT8Vec16 : public Vec<INT8Vec16> {
     _mm_mask_storeu_epi8(ptr, mask, reg);
   }
 };
+
+struct INT8Vec64 : public Vec<INT8Vec64> {
+  constexpr static int VEC_ELEM_NUM = 64;
+  union AliasReg {
+    __m512i reg;
+    int8_t values[VEC_ELEM_NUM];
+  };
+
+  __m512i reg;
+
+  // normal load
+  explicit INT8Vec64(void* ptr) : reg(_mm512_loadu_epi8(ptr)) {}
+
+  // non-temproal load
+  explicit INT8Vec64(bool, void* ptr) : reg(_mm512_stream_load_si512(ptr)) {}
+
+  void save(void* ptr) const { _mm512_storeu_epi8(ptr, reg); }
+
+  void save(int8_t* ptr, const int elem_num) const {
+    constexpr uint64_t M = 0xFFFFFFFFFFFFFFFF;
+    __mmask64 mask = _cvtu64_mask64(M >> (64 - elem_num));
+    _mm512_mask_storeu_epi8(ptr, mask, reg);
+  }
+
+  // non-temproal save
+  void nt_save(int8_t* ptr) { _mm512_stream_si512((__m512i*)ptr, reg); }
+};
 #endif
 
 template <typename T>
@@ -657,6 +699,22 @@ inline BF16Vec16::BF16Vec16(const FP32Vec16& v) {
 
 inline void prefetch(const void* addr) { _mm_prefetch(addr, _MM_HINT_T1); }
 
+#ifdef __AVX512F__
+inline void non_temporal_save(FP16Vec16& vec, void* ptr) {
+  _mm256_stream_si256((__m256i*)ptr, vec.reg);
+}
+inline void non_temporal_save(BF16Vec32& vec, void* ptr) {
+  _mm512_stream_si512((__m512i*)ptr, vec.reg);
+}
+inline void non_temporal_save(BF16Vec16& vec, void* ptr) {
+  _mm256_stream_si256((__m256i*)ptr, vec.reg);
+}
+inline void non_temporal_save(FP32Vec16& vec, void* ptr) {
+  _mm512_stream_ps((float*)ptr, vec.reg);
+}
+#endif
+
+inline void mem_barrier() { _mm_mfence(); }
 };  // namespace vec_op
 
 #endif

csrc/cpu/shm.cpp

@@ -0,0 +1,781 @@
+#include "cpu/cpu_types.hpp"
+
+#include <fcntl.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+namespace {
+#define MAX_SHM_RANK_NUM 8
+#define MAX_THREAD_NUM 12
+#define PER_THREAD_SHM_BUFFER_BYTES (4 * 1024 * 1024)
+#define MIN_THREAD_PROCESS_SIZE (8 * 1024)
+#define MAX_P2P_SEND_TENSOR_NUM 8
+
+template <typename scalar_t>
+struct KernelVecType {
+  using scalar_vec_t = void;
+};
+
+template <>
+struct KernelVecType<float> {
+  using scalar_vec_t = vec_op::FP32Vec16;
+};
+
+template <>
+struct KernelVecType<c10::BFloat16> {
+  using scalar_vec_t = vec_op::BF16Vec16;
+};
+
+template <>
+struct KernelVecType<c10::Half> {
+  using scalar_vec_t = vec_op::FP16Vec16;
+};
+
+enum class ThreadSHMStat : char { THREAD_READY = 0, SHM_DATA_READY, DONE };
+
+struct ThreadSHMContext {
+  volatile ThreadSHMStat thread_stats[MAX_SHM_RANK_NUM];
+  int thread_id;
+  int thread_num;
+  int rank;
+  int group_size;
+  size_t _spinning_count;
+  int swizzled_ranks[MAX_SHM_RANK_NUM];
+  void* thread_shm_ptrs[MAX_SHM_RANK_NUM];
+  ThreadSHMContext* shm_contexts[MAX_SHM_RANK_NUM];
+
+  ThreadSHMContext(const int thread_id, const int thread_num, const int rank,
+                   const int group_size, void* thread_shm_ptr)
+      : thread_id(thread_id),
+        thread_num(thread_num),
+        rank(rank),
+        group_size(group_size),
+        _spinning_count(0) {
+    static_assert(sizeof(ThreadSHMContext) % 64 == 0);
+    TORCH_CHECK(group_size <= MAX_SHM_RANK_NUM);
+    TORCH_CHECK((size_t)this % 64 == 0);
+    TORCH_CHECK((size_t)thread_shm_ptr % 64 == 0);
+    for (int i = 0; i < MAX_SHM_RANK_NUM; ++i) {
+      shm_contexts[i] = nullptr;
+      thread_shm_ptrs[i] = nullptr;
+      swizzled_ranks[i] = (i + rank) % group_size;
+      thread_stats[i] = ThreadSHMStat::DONE;
+    }
+    set_context(rank, this, thread_shm_ptr);
+  }
+
+  void set_context(int rank, ThreadSHMContext* ptr, void* thread_shm_ptr) {
+    TORCH_CHECK(rank < MAX_SHM_RANK_NUM);
+    TORCH_CHECK(ptr);
+    TORCH_CHECK(thread_shm_ptr);
+    TORCH_CHECK_EQ(ptr->thread_num, thread_num);
+    TORCH_CHECK_EQ(ptr->thread_id, thread_id);
+    shm_contexts[rank] = ptr;
+    thread_shm_ptrs[rank] = thread_shm_ptr;
+  }
+
+  template <typename T>
+  T* get_thread_shm_ptr(int rank) {
+    return reinterpret_cast<T*>(thread_shm_ptrs[rank]);
+  }
+
+  int get_swizzled_rank(int idx) { return swizzled_ranks[idx]; }
+
+  void wait_for_all(ThreadSHMStat prev_stat) {
+    for (int idx = 0; idx < group_size; ++idx) {
+      int rank = get_swizzled_rank(idx);
+      while (thread_stats[rank] == prev_stat) {
+        ++_spinning_count;
+        _mm_pause();
+      }
+    }
+    vec_op::mem_barrier();
+  }
+
+  void wait_for_one(int rank, ThreadSHMStat prev_stat) {
+    while (thread_stats[rank] == prev_stat) {
+      ++_spinning_count;
+      _mm_pause();
+    }
+    vec_op::mem_barrier();
+  }
+
+  void set_thread_stat(ThreadSHMStat stat) {
+    for (int idx = 0; idx < group_size; ++idx) {
+      int rank = get_swizzled_rank(idx);
+      shm_contexts[rank]->thread_stats[this->rank] = stat;
+    }
+  }
+
+  void set_thread_stat(int target_rank, ThreadSHMStat stat) {
+    for (int idx = 0; idx < group_size; ++idx) {
+      int rank = get_swizzled_rank(idx);
+      shm_contexts[rank]->thread_stats[target_rank] = stat;
+    }
+  }
+
+  // barrier for all ranks in the group, used for all2all ops
+  // DONE -> THREAD_READY -> SHM_DATA_READY -> DONE -> ...
+  void barrier(ThreadSHMStat next_stat) {
+    if (next_stat == ThreadSHMStat::THREAD_READY) {
+      set_thread_stat(ThreadSHMStat::THREAD_READY);
+      wait_for_all(ThreadSHMStat::DONE);
+    } else if (next_stat == ThreadSHMStat::SHM_DATA_READY) {
+      set_thread_stat(ThreadSHMStat::SHM_DATA_READY);
+      wait_for_all(ThreadSHMStat::THREAD_READY);
+    } else if (next_stat == ThreadSHMStat::DONE) {
+      set_thread_stat(ThreadSHMStat::DONE);
+      wait_for_all(ThreadSHMStat::SHM_DATA_READY);
+    } else {
+      TORCH_CHECK(false, "Invalid next_stat to barrier.");
+    }
+  }
+
+  std::string to_string() const {
+    std::stringstream ss;
+    ss << "SHMContext:";
+    ss << "\nrank: " << rank;
+    ss << "\ngroup_size: " << group_size;
+    ss << "\nthread_num: " << thread_num;
+    ss << "\nthread_id: " << thread_id;
+
+    ss << "\nshm_ctx_stat_loop_seq: [";
+    for (int i = 0; i < group_size; ++i) {
+      ss << swizzled_ranks[i] << ", ";
+    }
+    ss << "]";
+
+    ss << "\nshm_contexts: [";
+    for (int i = 0; i < group_size; ++i) {
+      if (shm_contexts[i]) {
+        ss << shm_contexts[i]->rank << ", ";
+      }
+    }
+    ss << "]";
+
+    return ss.str();
+  }
+};
+
+class SHMManager {
+ public:
+  explicit SHMManager(const std::string& name, const int rank,
+                      const int group_size)
+      : _rank(rank),
+        _group_size(group_size),
+        _thread_num(std::min(torch::get_num_threads(), MAX_THREAD_NUM)),
+        _shm_names({""}),
+        _shared_mem_ptrs({nullptr}),
+        _shm_ctx(nullptr) {
+    _shm_names[rank] = get_shm_name(name, rank);
+    _shared_mem_ptrs[rank] = init_shm(rank);
+    _shm_ctx = reinterpret_cast<ThreadSHMContext*>(_shared_mem_ptrs[rank]);
+
+    for (int i = 0; i < _thread_num; ++i) {
+      ThreadSHMContext* ctx = new (_shm_ctx + i)
+          ThreadSHMContext(i, _thread_num, _rank, _group_size,
+                           compute_thread_shm_ptr(_shm_ctx, i));
+    }
+  }
+
+  void join(const std::string& name) {
+    for (int rank_idx = 0; rank_idx < _group_size; ++rank_idx) {
+      if (rank_idx != _rank) {
+        TORCH_CHECK(_shm_names[rank_idx].empty());
+        TORCH_CHECK(_shared_mem_ptrs[rank_idx] == nullptr);
+        _shm_names[rank_idx] = get_shm_name(name, rank_idx);
+        _shared_mem_ptrs[rank_idx] = init_shm(rank_idx);
+        ThreadSHMContext* target_ctx =
+            reinterpret_cast<ThreadSHMContext*>(_shared_mem_ptrs[rank_idx]);
+        for (int thread_idx = 0; thread_idx < _thread_num; ++thread_idx) {
+          _shm_ctx[thread_idx].set_context(
+              rank_idx, target_ctx + thread_idx,
+              compute_thread_shm_ptr(target_ctx, thread_idx));
+        }
+      }
+    }
+  }
+
+  ~SHMManager() { destroy_shm(); }
+
+  ThreadSHMContext* get_shm_ctx() const { return _shm_ctx; }
+
+  static std::string get_shm_name(const std::string& name, int rank) {
+    return name + "_" + std::to_string(rank);
+  }
+
+  static int64_t create_singleton_instance(const std::string& name,
+                                           const int group_size,
+                                           const int rank) {
+    std::lock_guard<std::mutex> guard(SingletonInstancesLock);
+    SingletonInstances.emplace_back(
+        std::make_unique<SHMManager>(name, rank, group_size));
+    return static_cast<int64_t>(SingletonInstances.size() - 1);
+  }
+
+  static SHMManager* get_singleton_instance(int64_t handle) {
+    return SingletonInstances[handle].get();
+  }
+
+ protected:
+  static std::vector<std::unique_ptr<SHMManager>> SingletonInstances;
+  static std::mutex SingletonInstancesLock;
+
+ private:
+  static size_t round_to_alignment(size_t num) {
+    return ((num + 63) / 64) * 64;
+  }
+
+  int8_t* compute_thread_shm_ptr(ThreadSHMContext* ctx, int thread_id) {
+    int8_t* thread_shm_ptr =
+        reinterpret_cast<int8_t*>(ctx) +
+        round_to_alignment(_thread_num * sizeof(ThreadSHMContext));
+    return thread_shm_ptr +
+           thread_id * round_to_alignment(PER_THREAD_SHM_BUFFER_BYTES);
+  }
+
+  size_t compute_shm_size() {
+    const size_t rounded_rank_buffer_size =
+        round_to_alignment(PER_THREAD_SHM_BUFFER_BYTES) * _thread_num;
+    const size_t rounded_thread_shm_ctx_size =
+        round_to_alignment(_thread_num * sizeof(ThreadSHMContext));
+    const size_t shm_size =
+        rounded_thread_shm_ctx_size + rounded_rank_buffer_size;
+    return shm_size;
+  }
+
+  void* init_shm(int target_rank) {
+    const std::string& shm_name = _shm_names[target_rank];
+    const int local_rank = _rank;
+    const size_t shm_size = compute_shm_size();
+
+    int fd = -1;
+    if (local_rank == target_rank) {
+      fd = shm_open(shm_name.c_str(), O_CREAT | O_EXCL | O_RDWR,
+                    S_IRUSR | S_IWUSR);
+
+      if (fd == -1)
+        TORCH_CHECK(false, "create shm in SHMManager failed. errno: " +
+                               std::to_string(errno));
+
+      if (ftruncate(fd, shm_size) == -1)
+        TORCH_CHECK(false, "ftruncate in SHMManager failed. errno: " +
+                               std::to_string(errno));
+    } else {
+      fd = shm_open(shm_name.c_str(), O_RDWR, S_IRUSR | S_IWUSR);
+
+      if (fd == -1)
+        TORCH_CHECK(false, "open shm in SHMManager failed. errno: " +
+                               std::to_string(errno));
+    }
+
+    void* shm_ptr = mmap(nullptr, shm_size, PROT_READ | PROT_WRITE,
+                         MAP_SHARED | MAP_POPULATE, fd, 0);
+
+    if (shm_ptr == MAP_FAILED) {
+      TORCH_CHECK(false,
+                  "mmap in SHMManager failed. errno: " + std::to_string(errno));
+    }
+
+    if (close(fd) != 0) {
+      TORCH_CHECK(
+          false, "close in SHMManager failed. errno: " + std::to_string(errno));
+    }
+
+    TORCH_CHECK((size_t)shm_ptr % 64 == 0);
+
+    return shm_ptr;
+  }
+
+  void destroy_shm() {
+    std::stringstream ss;
+    ss << "local rank " << _rank << ": [";
+    for (int thread_id = 0; thread_id < _thread_num; ++thread_id) {
+      ss << _shm_ctx[thread_id]._spinning_count << ", ";
+    }
+    ss << "]\n";
+
+    for (int i = 0; i < MAX_SHM_RANK_NUM; ++i) {
+      if (_shared_mem_ptrs[i] != nullptr) {
+        munmap(_shared_mem_ptrs[i], compute_shm_size());
+      }
+
+      if (!_shm_names[i].empty()) {
+        shm_unlink(_shm_names[i].c_str());
+      }
+    }
+  }
+
+  int _rank;
+  int _group_size;
+  int _thread_num;
+  std::array<std::string, MAX_SHM_RANK_NUM> _shm_names;
+  std::array<void*, MAX_SHM_RANK_NUM> _shared_mem_ptrs;
+  ThreadSHMContext* _shm_ctx;
+};
+
+namespace shm_cc_ops {
+template <typename scalar_t, typename F>
+void shm_cc_loop(ThreadSHMContext* ctx, int64_t elem_num, F&& inner_func) {
+  int thread_num = ctx->thread_num;
+  int64_t total_bytes = elem_num * sizeof(scalar_t);
+  int64_t total_units_num =
+      (total_bytes + MIN_THREAD_PROCESS_SIZE - 1) / MIN_THREAD_PROCESS_SIZE;
+  int64_t per_thread_units_num =
+      (total_units_num + thread_num - 1) / thread_num;
+  int64_t per_unit_elem_num = MIN_THREAD_PROCESS_SIZE / sizeof(scalar_t);
+  int64_t max_per_thread_iteration_elem_num =
+      PER_THREAD_SHM_BUFFER_BYTES / sizeof(scalar_t);
+  int64_t per_thread_elem_num = per_unit_elem_num * per_thread_units_num;
+
+#pragma omp parallel for schedule(static, 1)
+  for (int i = 0; i < thread_num; ++i) {
+    int64_t offset = i * per_thread_elem_num;
+    int64_t end = std::min(elem_num, offset + per_thread_elem_num);
+    int64_t curr_elem_num =
+        std::min(max_per_thread_iteration_elem_num, end - offset);
+    ThreadSHMContext* thread_ctx = ctx + i;
+
+    while (curr_elem_num > 0) {
+      inner_func(thread_ctx, offset, curr_elem_num);
+
+      offset += max_per_thread_iteration_elem_num;
+      curr_elem_num = std::min(max_per_thread_iteration_elem_num, end - offset);
+    }
+  }
+}
+};  // namespace shm_cc_ops
+
+namespace shm_cc_ops {
+
+void memcpy_from_shm(void* dst, void* src, const int64_t bytes) {
+  const int64_t aligned_bytes = ((bytes >> 6) << 6);  // 64 bytes aligned
+  int64_t i = 0;
+#pragma GCC unroll 4
+  for (; i < aligned_bytes; i += 64) {
+    vec_op::INT8Vec64 data(
+        true, (int8_t*)src + i);  // stream loading shm to avoid caching
+    data.save((int8_t*)dst + i);
+  }
+  if (aligned_bytes < bytes) {
+    vec_op::INT8Vec64 data(true, (int8_t*)src + aligned_bytes);
+    data.save((int8_t*)dst + aligned_bytes, bytes - aligned_bytes);
+  }
+}
+
+void memcpy_to_shm(void* dst, void* src, const int64_t bytes) {
+#pragma GCC unroll 4
+  for (int64_t i = 0; i < bytes; i += 64) {
+    vec_op::INT8Vec64 data((int8_t*)src + i);
+    data.nt_save((int8_t*)dst + i);
+  }
+}
+
+void memcpy(void* dst, void* src, const int64_t bytes) {
+  const int64_t aligned_bytes = ((bytes >> 6) << 6);  // 64 bytes aligned
+  int64_t i = 0;
+#pragma GCC unroll 4
+  for (; i < aligned_bytes; i += 64) {
+    vec_op::INT8Vec64 data((int8_t*)src + i);
+    data.save((int8_t*)dst + i);
+  }
+  if (aligned_bytes < bytes) {
+    vec_op::INT8Vec64 data((int8_t*)src + aligned_bytes);
+    data.save((int8_t*)dst + aligned_bytes, bytes - aligned_bytes);
+  }
+}
+
+template <typename scalar_t, int RANKS>
+void all_reduce_sum_impl(ThreadSHMContext* ctx, scalar_t* data,
+                         size_t elem_num) {
+  CPU_KERNEL_GUARD_IN(all_reduce_sum_impl)
+  using vec_t = typename KernelVecType<scalar_t>::scalar_vec_t;
+  constexpr int64_t vec_elem_num = vec_t::get_elem_num();
+  const int worldsize = ctx->group_size;
+
+  shm_cc_ops::shm_cc_loop<scalar_t>(
+      ctx, elem_num,
+      [&](ThreadSHMContext* thread_ctx, int64_t data_offset,
+          int64_t data_elem_num) {
+        int rank = thread_ctx->rank;
+        scalar_t* thread_shm_ptr =
+            thread_ctx->get_thread_shm_ptr<scalar_t>(rank);
+        scalar_t* thread_data_ptr = data + data_offset;
+        int64_t thread_data_elem_num = data_elem_num * sizeof(scalar_t);
+
+        scalar_t* remote_data_ptrs[RANKS - 1];
+        vec_op::unroll_loop<int, RANKS - 1>([&](int idx) {
+          remote_data_ptrs[idx] = thread_ctx->get_thread_shm_ptr<scalar_t>(
+              thread_ctx->get_swizzled_rank(idx + 1));
+        });
+
+        thread_ctx->barrier(ThreadSHMStat::THREAD_READY);
+
+        shm_cc_ops::memcpy_to_shm(thread_shm_ptr, thread_data_ptr,
+                                  thread_data_elem_num);
+
+        thread_ctx->barrier(ThreadSHMStat::SHM_DATA_READY);
+
+        int64_t aligned_data_elem_num =
+            (data_elem_num / vec_elem_num) * vec_elem_num;
+        int64_t i = 0;
+#pragma GCC unroll 4
+        for (; i < aligned_data_elem_num; i += vec_elem_num) {
+          vec_t local_data(thread_data_ptr + i);  // load from cache
+          vec_op::FP32Vec16 local_data_fp32(local_data);
+          vec_op::unroll_loop<int, RANKS - 1>([&](int idx) {
+            vec_t remote_data(
+                true, remote_data_ptrs[idx] + i);  // stream load from shm
+            vec_op::FP32Vec16 remote_data_fp32(remote_data);
+            local_data_fp32 = local_data_fp32 + remote_data_fp32;  // sum reduce
+          });
+          vec_t reduced_data(local_data_fp32);
+          reduced_data.save(thread_data_ptr + i);
+        }
+
+        if (i < data_elem_num) {
+          vec_t local_data(thread_data_ptr + i);  // load from cache
+          vec_op::FP32Vec16 local_data_fp32(local_data);
+          vec_op::unroll_loop<int, RANKS - 1>([&](int idx) {
+            vec_t remote_data(
+                true, remote_data_ptrs[idx] + i);  // stream load from shm
+            vec_op::FP32Vec16 remote_data_fp32(remote_data);
+            local_data_fp32 = local_data_fp32 + remote_data_fp32;  // sum reduce
+          });
+          vec_t reduced_data(local_data_fp32);
+          reduced_data.save(thread_data_ptr + i,
+                            data_elem_num - aligned_data_elem_num);
+        }
+
+        thread_ctx->barrier(ThreadSHMStat::DONE);
+      });
+
+  return;
+}
+};  // namespace shm_cc_ops
+
+std::vector<std::unique_ptr<SHMManager>> SHMManager::SingletonInstances = {};
+std::mutex SHMManager::SingletonInstancesLock = {};
+
+template <typename scalar_t>
+void shm_allreduce_sum(ThreadSHMContext* ctx, scalar_t* data, size_t elem_num) {
+  switch (ctx->group_size) {
+    case 2:
+      shm_cc_ops::all_reduce_sum_impl<scalar_t, 2>(ctx, data, elem_num);
+      break;
+    case 3:
+      shm_cc_ops::all_reduce_sum_impl<scalar_t, 3>(ctx, data, elem_num);
+      break;
+    case 4:
+      shm_cc_ops::all_reduce_sum_impl<scalar_t, 4>(ctx, data, elem_num);
+      break;
+    case 8:
+      shm_cc_ops::all_reduce_sum_impl<scalar_t, 8>(ctx, data, elem_num);
+      break;
+    default:
+      TORCH_CHECK(false,
+                  "Invalid world size: " + std::to_string(ctx->group_size));
+  }
+}
+
+template <typename scalar_t>
+void shm_gather_impl(ThreadSHMContext* ctx, scalar_t* data, size_t elem_num,
+                     scalar_t** outputs, const int dst) {
+  CPU_KERNEL_GUARD_IN(shm_gather_impl)
+  const int worldsize = ctx->group_size;
+  TORCH_CHECK_LT(dst, worldsize);
+  shm_cc_ops::shm_cc_loop<scalar_t>(
+      ctx, elem_num,
+      [&](ThreadSHMContext* thread_ctx, int64_t data_offset,
+          int64_t data_elem_num) {
+        int rank = thread_ctx->rank;
+        scalar_t* thread_shm_ptr =
+            thread_ctx->get_thread_shm_ptr<scalar_t>(rank);
+
+        thread_ctx->barrier(ThreadSHMStat::THREAD_READY);
+
+        shm_cc_ops::memcpy_to_shm(thread_shm_ptr, data + data_offset,
+                                  data_elem_num * sizeof(scalar_t));
+
+        thread_ctx->barrier(ThreadSHMStat::SHM_DATA_READY);
+
+        if (rank == dst) {
+          shm_cc_ops::memcpy(outputs[rank] + data_offset, data + data_offset,
+                             data_elem_num * sizeof(scalar_t));
+          for (int i = 1; i < worldsize; ++i) {
+            int src_rank = thread_ctx->get_swizzled_rank(i);
+            scalar_t* src_ptr =
+                thread_ctx->get_thread_shm_ptr<scalar_t>(src_rank);  // shm
+            scalar_t* dst_ptr = outputs[src_rank] + data_offset;
+            shm_cc_ops::memcpy_from_shm(dst_ptr, src_ptr,
+                                        data_elem_num * sizeof(scalar_t));
+          }
+        }
+
+        thread_ctx->barrier(ThreadSHMStat::DONE);
+      });
+
+  return;
+}
+
+struct MemPiece {
+  void* ptr;
+  int64_t size;
+
+  template <typename T>
+  T* data_ptr() {
+    return reinterpret_cast<T*>(ptr);
+  }
+};
+
+struct TensorListMeta {
+  int64_t tensor_bytes[MAX_P2P_SEND_TENSOR_NUM];
+  torch::ScalarType tensor_types[MAX_P2P_SEND_TENSOR_NUM];
+  int64_t tensor_num;
+  int64_t total_bytes;
+
+  TensorListMeta() : tensor_num(0), total_bytes(0) {
+    static_assert(sizeof(TensorListMeta) % 64 == 0);
+    static_assert(sizeof(TensorListMeta) <
+                  MIN_THREAD_PROCESS_SIZE);  // To ensure the metadata always
+                                             // hold by the thread 0
+    for (int i = 0; i < MAX_P2P_SEND_TENSOR_NUM; ++i) {
+      tensor_bytes[i] = 0;
+      tensor_ptrs[i] = nullptr;
+      tensor_types[i] = torch::ScalarType::Undefined;
+    }
+  }
+
+  // For send and recv
+  void bind_tensor_list(std::vector<torch::Tensor>& tensor_list) {
+    TORCH_CHECK(tensor_types[0] == torch::ScalarType::Undefined,
+                "Re-bind TensorListMeta is not allowed.")
+    TORCH_CHECK_LE(tensor_list.size(), MAX_P2P_SEND_TENSOR_NUM);
+    tensor_num = tensor_list.size();
+    int64_t bytes_sum = 0;
+    for (int i = 0; i < tensor_list.size(); ++i) {
+      torch::Tensor& t = tensor_list[i];
+      TORCH_CHECK(t.is_contiguous());
+      tensor_bytes[i] = t.nbytes();
+      tensor_types[i] = t.scalar_type();
+      tensor_ptrs[i] = t.data_ptr();
+      bytes_sum += t.nbytes();
+    }
+    total_bytes = bytes_sum;
+  }
+
+  // For recv
+  std::vector<torch::Tensor> generate_tensor_list() {
+    std::vector<torch::Tensor> tensor_list;
+    tensor_list.reserve(tensor_num);
+
+    for (int i = 0; i < tensor_num; ++i) {
+      int64_t bytes = tensor_bytes[i];
+      auto type = tensor_types[i];
+      int64_t elem_bytes = torch::elementSize(type);
+
+      TORCH_CHECK_EQ(bytes % elem_bytes, 0);
+      int64_t elem_num = bytes / elem_bytes;
+      auto options = torch::TensorOptions().dtype(type).device(torch::kCPU);
+      tensor_list.emplace_back(torch::empty({elem_num}, options));
+    }
+    return tensor_list;
+  }
+
+  MemPiece get_data(int64_t offset) {
+    for (int i = 0; i < tensor_num; ++i) {
+      if (offset < tensor_bytes[i]) {
+        return {reinterpret_cast<int8_t*>(tensor_ptrs[i]) + offset,
+                tensor_bytes[i] - offset};
+      }
+      offset -= tensor_bytes[i];
+    }
+    return {nullptr, 0};
+  }
+
+ private:
+  void* tensor_ptrs[MAX_P2P_SEND_TENSOR_NUM];
+  int8_t _padding[40];
+};
+
+void shm_send_tensor_list_impl(ThreadSHMContext* ctx,
+                               const std::vector<torch::Tensor>& tensor_list) {
+  CPU_KERNEL_GUARD_IN(shm_send_tensor_list_impl)
+  std::vector<torch::Tensor> tensor_list_with_metadata;
+  tensor_list_with_metadata.reserve(1 + tensor_list.size());
+
+  auto options = torch::TensorOptions().dtype(torch::kInt8).device(torch::kCPU);
+  tensor_list_with_metadata.emplace_back(
+      torch::empty({sizeof(TensorListMeta)}, options));
+  tensor_list_with_metadata.insert(tensor_list_with_metadata.end(),
+                                   tensor_list.begin(), tensor_list.end());
+
+  torch::Tensor& metadata_tensor = tensor_list_with_metadata[0];
+  TORCH_CHECK_EQ(metadata_tensor.nbytes(), sizeof(TensorListMeta));
+
+  TensorListMeta* metadata = new (metadata_tensor.data_ptr()) TensorListMeta();
+  metadata->bind_tensor_list(tensor_list_with_metadata);
+
+  shm_cc_ops::shm_cc_loop<int8_t>(
+      ctx, metadata->total_bytes,
+      [&](ThreadSHMContext* thread_ctx, int64_t data_offset,
+          int64_t data_elem_num) {
+        int rank = thread_ctx->rank;
+        // Wait until the receiver set the stat to DONE
+        thread_ctx->wait_for_one(rank, ThreadSHMStat::SHM_DATA_READY);
+
+        int64_t curr_shm_offset = 0;
+        while (curr_shm_offset < data_elem_num) {
+          MemPiece frag = metadata->get_data(data_offset + curr_shm_offset);
+          frag.size = std::min(frag.size, data_elem_num - curr_shm_offset);
+          shm_cc_ops::memcpy(
+              thread_ctx->get_thread_shm_ptr<int8_t>(rank) + curr_shm_offset,
+              frag.ptr, frag.size);
+          curr_shm_offset += frag.size;
+        }
+
+        thread_ctx->set_thread_stat(rank, ThreadSHMStat::SHM_DATA_READY);
+      });
+}
+
+std::vector<torch::Tensor> shm_recv_tensor_list_impl(ThreadSHMContext* ctx,
+                                                     int64_t src) {
+  CPU_KERNEL_GUARD_IN(shm_recv_tensor_list_impl)
+  auto options = torch::TensorOptions().dtype(torch::kInt8).device(torch::kCPU);
+  torch::Tensor metadata_tensor =
+      torch::empty({sizeof(TensorListMeta)}, options);
+
+  // Wait until the sender set the stat of the thread 0 to SHM_DATA_READY
+  ctx->wait_for_one(src, ThreadSHMStat::DONE);
+  shm_cc_ops::memcpy(metadata_tensor.data_ptr(),
+                     ctx->get_thread_shm_ptr<void>(src),
+                     sizeof(TensorListMeta));
+  TensorListMeta* src_metadata =
+      reinterpret_cast<TensorListMeta*>(metadata_tensor.data_ptr());
+  std::vector<torch::Tensor> tensor_list_with_metadata =
+      src_metadata->generate_tensor_list();
+
+  TensorListMeta metadata;
+  metadata.bind_tensor_list(tensor_list_with_metadata);
+  TORCH_CHECK_EQ(metadata.tensor_num, src_metadata->tensor_num);
+  TORCH_CHECK_EQ(metadata.total_bytes, src_metadata->total_bytes);
+
+  shm_cc_ops::shm_cc_loop<int8_t>(
+      ctx, metadata.total_bytes,
+      [&](ThreadSHMContext* thread_ctx, int64_t data_offset,
+          int64_t data_elem_num) {
+        // Wait until the sender set the stat to SHM_DATA_READY
+        thread_ctx->wait_for_one(src, ThreadSHMStat::DONE);
+        int64_t curr_shm_offset = 0;
+        while (curr_shm_offset < data_elem_num) {
+          MemPiece frag = metadata.get_data(data_offset + curr_shm_offset);
+          frag.size = std::min(frag.size, data_elem_num - curr_shm_offset);
+          shm_cc_ops::memcpy(
+              frag.ptr,
+              thread_ctx->get_thread_shm_ptr<int8_t>(src) + curr_shm_offset,
+              frag.size);
+          curr_shm_offset += frag.size;
+        }
+
+        thread_ctx->set_thread_stat(src, ThreadSHMStat::DONE);
+      });
+
+  std::vector<torch::Tensor> tensor_list;
+  tensor_list.reserve(metadata.tensor_num - 1);
+  tensor_list.insert(tensor_list.begin(), tensor_list_with_metadata.begin() + 1,
+                     tensor_list_with_metadata.end());
+
+  return tensor_list;
+}
+}  // namespace
+
+void shm_gather(int64_t handle, torch::Tensor& data,
+                const std::optional<std::vector<torch::Tensor>>& outputs,
+                int64_t dst) {
+  TORCH_CHECK(data.is_contiguous())
+  VLLM_DISPATCH_FLOATING_TYPES(data.scalar_type(), "shm_gather_impl", [&] {
+    CPU_KERNEL_GUARD_IN(shm_gather_impl)
+
+    if (outputs.has_value()) {
+      TORCH_CHECK_LE(outputs->size(), MAX_SHM_RANK_NUM);
+      scalar_t* output_ptrs[MAX_SHM_RANK_NUM] = {nullptr};
+      for (int i = 0; i < outputs->size(); ++i) {
+        output_ptrs[i] = outputs->at(i).data_ptr<scalar_t>();
+      }
+      shm_gather_impl(SHMManager::get_singleton_instance(handle)->get_shm_ctx(),
+                      data.data_ptr<scalar_t>(), data.numel(), output_ptrs,
+                      dst);
+    } else {
+      shm_gather_impl(SHMManager::get_singleton_instance(handle)->get_shm_ctx(),
+                      data.data_ptr<scalar_t>(), data.numel(), (scalar_t**)(0),
+                      dst);
+    }
+
+    CPU_KERNEL_GUARD_OUT(shm_gather_impl)
+  });
+}
+
+void shm_all_gather(int64_t handle, const torch::Tensor& data,
+                    torch::Tensor& output) {
+  TORCH_CHECK(data.is_contiguous())
+  TORCH_CHECK(output.is_contiguous())
+
+  const int64_t input_elem_num = data.numel();
+  const int64_t output_elem_num = output.numel();
+  TORCH_CHECK_EQ(output_elem_num % input_elem_num, 0);
+  const int world_size = output_elem_num / input_elem_num;
+
+  VLLM_DISPATCH_FLOATING_TYPES(data.scalar_type(), "shm_all_gather_impl", [&] {
+    CPU_KERNEL_GUARD_IN(shm_all_gather_impl)
+    auto ctx = SHMManager::get_singleton_instance(handle)->get_shm_ctx();
+    TORCH_CHECK_EQ(ctx->group_size, world_size);
+
+    scalar_t* output_ptrs[MAX_SHM_RANK_NUM] = {nullptr};
+    for (int i = 0; i < world_size; ++i) {
+      output_ptrs[i] = output.data_ptr<scalar_t>() + i * input_elem_num;
+    }
+    shm_gather_impl(ctx, data.data_ptr<scalar_t>(), data.numel(), output_ptrs,
+                    ctx->rank);
+    CPU_KERNEL_GUARD_OUT(shm_all_gather_impl)
+  });
+}
+
+void shm_allreduce(int64_t handle, torch::Tensor& data) {
+  TORCH_CHECK(data.is_contiguous())
+  VLLM_DISPATCH_FLOATING_TYPES(data.scalar_type(), "shm_allreduce_sum", [&] {
+    CPU_KERNEL_GUARD_IN(shm_allreduce_sum)
+    shm_allreduce_sum(SHMManager::get_singleton_instance(handle)->get_shm_ctx(),
+                      data.data_ptr<scalar_t>(), data.numel());
+    CPU_KERNEL_GUARD_OUT(shm_allreduce_sum)
+  });
+}
+
+void shm_send_tensor_list(int64_t handle,
+                          const std::vector<torch::Tensor>& tensor_list,
+                          int64_t dst) {
+  CPU_KERNEL_GUARD_IN(shm_send_tensor_list)
+  shm_send_tensor_list_impl(
+      SHMManager::get_singleton_instance(handle)->get_shm_ctx(), tensor_list);
+  CPU_KERNEL_GUARD_OUT(shm_send_tensor_list)
+}
+
+std::vector<torch::Tensor> shm_recv_tensor_list(int64_t handle, int64_t src) {
+  CPU_KERNEL_GUARD_IN(shm_recv_tensor_list)
+  auto tensor_list = shm_recv_tensor_list_impl(
+      SHMManager::get_singleton_instance(handle)->get_shm_ctx(), src);
+  CPU_KERNEL_GUARD_OUT(shm_recv_tensor_list)
+  return tensor_list;
+}
+
+int64_t init_shm_manager(const std::string& name, const int64_t group_size,
+                         const int64_t rank) {
+  return SHMManager::create_singleton_instance(name, group_size, rank);
+}
+
+std::string join_shm_manager(int64_t handle, const std::string& name) {
+  auto shm_manager = SHMManager::get_singleton_instance(handle);
+  TORCH_CHECK(shm_manager);
+  shm_manager->join(name);
+  return shm_manager->get_shm_ctx()->to_string();
+}

csrc/cpu/torch_bindings.cpp

@@ -22,6 +22,26 @@ void mla_decode_kvcache(torch::Tensor& out, torch::Tensor& query,
                         torch::Tensor& kv_cache, double scale,
                         torch::Tensor& block_tables, torch::Tensor& seq_lens);
 
+int64_t init_shm_manager(const std::string& name, const int64_t group_size,
+                         const int64_t rank);
+
+std::string join_shm_manager(int64_t handle, const std::string& name);
+
+void shm_allreduce(int64_t handle, torch::Tensor& data);
+
+void shm_gather(int64_t handle, torch::Tensor& data,
+                const std::optional<std::vector<torch::Tensor>>& outputs,
+                int64_t dst);
+
+void shm_all_gather(int64_t handle, const torch::Tensor& data,
+                    torch::Tensor& output);
+
+void shm_send_tensor_list(int64_t handle,
+                          const std::vector<torch::Tensor>& tensor_list,
+                          int64_t dst);
+
+std::vector<torch::Tensor> shm_recv_tensor_list(int64_t handle, int64_t src);
+
 TORCH_LIBRARY_EXPAND(TORCH_EXTENSION_NAME, ops) {
   // vLLM custom ops
 
@@ -131,6 +151,29 @@ TORCH_LIBRARY_EXPAND(TORCH_EXTENSION_NAME, ops) {
       "                  Tensor? azp, Tensor? bias) -> ()");
   ops.impl("cutlass_scaled_mm_azp", torch::kCPU, &int8_scaled_mm_azp);
 #endif
+
+// SHM CCL
+#ifdef __AVX512F__
+  ops.def("init_shm_manager(str name, int group_size, int rank) -> int",
+          &init_shm_manager);
+  ops.def("join_shm_manager(int handle, str name) -> str", &join_shm_manager);
+  ops.def("shm_allreduce(int handle, Tensor! data) -> ()");
+  ops.impl("shm_allreduce", torch::kCPU, &shm_allreduce);
+  ops.def(
+      "shm_gather(int handle, Tensor data, Tensor[](a!)? outputs, int dst) -> "
+      "()");
+  ops.impl("shm_gather", torch::kCPU, &shm_gather);
+  ops.def(
+      "shm_all_gather(int handle, Tensor data, Tensor! output) -> "
+      "()");
+  ops.impl("shm_all_gather", torch::kCPU, &shm_all_gather);
+  ops.def(
+      "shm_send_tensor_list(int handle, Tensor[](a) tensor_list, int dst) -> "
+      "()");
+  ops.impl("shm_send_tensor_list", torch::kCPU, &shm_send_tensor_list);
+  ops.def("shm_recv_tensor_list(int handle, int src) -> Tensor[](a)",
+          &shm_recv_tensor_list);
+#endif
 }
 
 TORCH_LIBRARY_EXPAND(CONCAT(TORCH_EXTENSION_NAME, _cache_ops), cache_ops) {

csrc/cpu/utils.cpp

@@ -4,6 +4,11 @@
   #include <string>
   #include <sched.h>
 #endif
+#if __GLIBC__ == 2 && __GLIBC_MINOR__ < 30
+  #include <unistd.h>
+  #include <sys/syscall.h>
+  #define gettid() syscall(SYS_gettid)
+#endif
 
 #include "cpu_types.hpp"
 
@@ -18,7 +23,7 @@ std::string init_cpu_threads_env(const std::string& cpu_ids) {
 
 #ifndef VLLM_NUMA_DISABLED
 std::string init_cpu_threads_env(const std::string& cpu_ids) {
-  bitmask* omp_cpu_mask = numa_parse_cpustring(cpu_ids.c_str());
+  bitmask* omp_cpu_mask = numa_parse_cpustring_all(cpu_ids.c_str());
   TORCH_CHECK(omp_cpu_mask->size > 0);
   std::vector<int> omp_cpu_ids;
   omp_cpu_ids.reserve(omp_cpu_mask->size);

csrc/custom_all_reduce.cu

@@ -12,7 +12,7 @@ static_assert(sizeof(void*) == sizeof(fptr_t));
 
 fptr_t init_custom_ar(const std::vector<fptr_t>& fake_ipc_ptrs,
                       torch::Tensor& rank_data, int64_t rank,
-                      bool full_nvlink) {
+                      bool fully_connected) {
   int world_size = fake_ipc_ptrs.size();
   if (world_size > 8)
     throw std::invalid_argument("world size > 8 is not supported");
@@ -27,7 +27,7 @@ fptr_t init_custom_ar(const std::vector<fptr_t>& fake_ipc_ptrs,
   }
   return (fptr_t) new vllm::CustomAllreduce(ipc_ptrs, rank_data.data_ptr(),
                                             rank_data.numel(), rank, world_size,
-                                            full_nvlink);
+                                            fully_connected);
 }
 
 /**
@@ -142,3 +142,48 @@ void register_graph_buffers(fptr_t _fa,
   bytes.reserve(handles.size());
   fa->register_graph_buffers(bytes, offsets);
 }
+
+std::tuple<fptr_t, torch::Tensor> allocate_shared_buffer_and_handle(
+    int64_t size) {
+  auto device_index = c10::cuda::current_device();
+  at::DeviceGuard device_guard(at::Device(at::DeviceType::CUDA, device_index));
+  void* buffer;
+  cudaStreamCaptureMode mode = cudaStreamCaptureModeRelaxed;
+  auto stream = c10::cuda::getCurrentCUDAStream().stream();
+  AT_CUDA_CHECK(cudaThreadExchangeStreamCaptureMode(&mode));
+
+  // Allocate buffer
+#if defined(USE_ROCM)
+  // data buffers need to be "uncached" for signal on MI200
+  AT_CUDA_CHECK(
+      hipExtMallocWithFlags((void**)&buffer, size, hipDeviceMallocUncached));
+#else
+  AT_CUDA_CHECK(cudaMalloc((void**)&buffer, size));
+#endif
+  AT_CUDA_CHECK(cudaMemsetAsync(buffer, 0, size, stream));
+  AT_CUDA_CHECK(cudaStreamSynchronize(stream));
+  AT_CUDA_CHECK(cudaThreadExchangeStreamCaptureMode(&mode));
+
+  // Create IPC memhandle for the allocated buffer.
+  // Will use it in open_mem_handle.
+  auto options =
+      torch::TensorOptions().dtype(torch::kUInt8).device(torch::kCPU);
+  auto handle =
+      torch::empty({static_cast<int64_t>(sizeof(cudaIpcMemHandle_t))}, options);
+  AT_CUDA_CHECK(
+      cudaIpcGetMemHandle((cudaIpcMemHandle_t*)handle.data_ptr(), buffer));
+
+  return std::make_tuple(reinterpret_cast<fptr_t>(buffer), handle);
+}
+
+fptr_t open_mem_handle(torch::Tensor& mem_handle) {
+  void* ipc_ptr;
+  AT_CUDA_CHECK(cudaIpcOpenMemHandle(
+      (void**)&ipc_ptr, *((const cudaIpcMemHandle_t*)mem_handle.data_ptr()),
+      cudaIpcMemLazyEnablePeerAccess));
+  return reinterpret_cast<fptr_t>(ipc_ptr);
+}
+
+void free_shared_buffer(fptr_t buffer) {
+  AT_CUDA_CHECK(cudaFree(reinterpret_cast<void*>(buffer)));
+}

csrc/custom_all_reduce.cuh

@@ -5,6 +5,10 @@
 #include <cuda_fp16.h>
 #include <cuda_runtime.h>
 
+#if defined(USE_ROCM)
+typedef __hip_bfloat16 nv_bfloat16;
+#endif
+
 #include <iostream>
 #include <array>
 #include <limits>
@@ -12,6 +16,7 @@
 #include <unordered_map>
 #include <vector>
 
+namespace vllm {
 #define CUDACHECK(cmd)                                              \
   do {                                                              \
     cudaError_t e = cmd;                                            \
@@ -22,24 +27,37 @@
     }                                                               \
   } while (0)
 
-namespace vllm {
-
+// Maximal number of blocks in allreduce kernel.
 constexpr int kMaxBlocks = 36;
+
+// Default number of blocks in allreduce kernel.
+#ifndef USE_ROCM
+const int defaultBlockLimit = 36;
+CUpointer_attribute rangeStartAddrAttr = CU_POINTER_ATTRIBUTE_RANGE_START_ADDR;
+#else
+const int defaultBlockLimit = 16;
+hipPointer_attribute rangeStartAddrAttr =
+    HIP_POINTER_ATTRIBUTE_RANGE_START_ADDR;
+#endif
+
 // Counter may overflow, but it's fine since unsigned int overflow is
 // well-defined behavior.
 using FlagType = uint32_t;
+
+// Two sets of peer counters are needed for two syncs: starting and ending an
+// operation. The reason is that it's possible for peer GPU block to arrive at
+// the second sync point while the current GPU block haven't passed the first
+// sync point. Thus, peer GPU may write counter+1 while current GPU is busy
+// waiting for counter. We use alternating counter array to avoid this
+// possibility.
 struct Signal {
-  alignas(128) FlagType self_counter[kMaxBlocks][8];
-  // Two sets of peer counters are needed for two syncs. The reason is that
-  // it's possible for peer GPU block to arrive at the second sync point while
-  // the current GPU block haven't passed the first sync point. Thus, peer GPU
-  // may write counter+1 while current GPU is busy waiting for counter. We use
-  // alternating counter array to avoid this possibility.
-  alignas(128) FlagType peer_counter[2][kMaxBlocks][8];
+  alignas(128) FlagType start[kMaxBlocks][8];
+  alignas(128) FlagType end[kMaxBlocks][8];
+  alignas(128) FlagType _flag[kMaxBlocks];  // incremental flags for each rank
 };
 
 struct __align__(16) RankData {
-  const void* __restrict__ ptrs[8];
+  const void* ptrs[8];
 };
 
 struct __align__(16) RankSignals {
@@ -134,27 +152,29 @@ DINLINE O downcast(array_t<float, O::size> val) {
   }
 }
 
+#if !defined(USE_ROCM)
+
 static DINLINE void st_flag_release(FlagType* flag_addr, FlagType flag) {
-#if defined(__CUDA_ARCH__) && __CUDA_ARCH__ >= 700
+  #if defined(__CUDA_ARCH__) && __CUDA_ARCH__ >= 700
   asm volatile("st.release.sys.global.u32 [%1], %0;" ::"r"(flag),
                "l"(flag_addr));
-#else
+  #else
   asm volatile("membar.sys; st.volatile.global.u32 [%1], %0;" ::"r"(flag),
                "l"(flag_addr));
-#endif
+  #endif
 }
 
 static DINLINE FlagType ld_flag_acquire(FlagType* flag_addr) {
   FlagType flag;
-#if defined(__CUDA_ARCH__) && __CUDA_ARCH__ >= 700
+  #if defined(__CUDA_ARCH__) && __CUDA_ARCH__ >= 700
   asm volatile("ld.acquire.sys.global.u32 %0, [%1];"
                : "=r"(flag)
                : "l"(flag_addr));
-#else
+  #else
   asm volatile("ld.volatile.global.u32 %0, [%1]; membar.gl;"
                : "=r"(flag)
                : "l"(flag_addr));
-#endif
+  #endif
   return flag;
 }
 
@@ -170,37 +190,99 @@ static DINLINE FlagType ld_flag_volatile(FlagType* flag_addr) {
   return flag;
 }
 
-// is_start: whether this is the very first synchronization barrier.
-// need_fence: whether a memory fence is needed. If true, a release-acquire
-// semantic is used to enforce memory access order before and after this
-// barrier.
-template <int ngpus, bool is_start, bool need_fence = false>
-DINLINE void multi_gpu_barrier(const RankSignals& sg, Signal* self_sg,
-                               int rank) {
-  if constexpr (!is_start) __syncthreads();
-  static_assert(
-      !(is_start && need_fence));  // Start barrier shouldn't need fence.
+// This function is meant to be used as the first synchronization in the all
+// reduce kernel. Thus, it doesn't need to make any visibility guarantees for
+// prior memory accesses. Note: volatile writes will not be reordered against
+// other volatile writes.
+template <int ngpus>
+DINLINE void barrier_at_start(const RankSignals& sg, Signal* self_sg,
+                              int rank) {
+  uint32_t flag = self_sg->_flag[blockIdx.x] + 1;
   if (threadIdx.x < ngpus) {
-    // Increment the counter. Technically we only need one counter, but we use
-    // multiple per block to eliminate the need to share the counter via smem.
-    auto val = self_sg->self_counter[blockIdx.x][threadIdx.x] += 1;
+    auto peer_counter_ptr = &sg.signals[threadIdx.x]->start[blockIdx.x][rank];
+    auto self_counter_ptr = &self_sg->start[blockIdx.x][threadIdx.x];
+    // Write the expected counter value to peer and wait for correct value
+    // from peer.
+    st_flag_volatile(peer_counter_ptr, flag);
+    while (ld_flag_volatile(self_counter_ptr) != flag);
+  }
+  __syncthreads();
+  // use one thread to update flag
+  if (threadIdx.x == 0) self_sg->_flag[blockIdx.x] = flag;
+}
+
+// This function is meant to be used as the second or the final
+// synchronization barrier in the all reduce kernel. If it's the final
+// synchronization barrier, we don't need to make any visibility guarantees
+// for prior memory accesses.
+template <int ngpus, bool final_sync = false>
+DINLINE void barrier_at_end(const RankSignals& sg, Signal* self_sg, int rank) {
+  __syncthreads();
+  uint32_t flag = self_sg->_flag[blockIdx.x] + 1;
+  if (threadIdx.x < ngpus) {
+    auto peer_counter_ptr = &sg.signals[threadIdx.x]->end[blockIdx.x][rank];
+    auto self_counter_ptr = &self_sg->end[blockIdx.x][threadIdx.x];
     // Write the expected counter value to peer and wait for correct value from
     // peer.
-    auto peer_counter_ptr =
-        &sg.signals[threadIdx.x]->peer_counter[val % 2][blockIdx.x][rank];
-    auto self_counter_ptr =
-        &self_sg->peer_counter[val % 2][blockIdx.x][threadIdx.x];
-    if constexpr (need_fence) {
-      st_flag_release(peer_counter_ptr, val);
-      while (ld_flag_acquire(self_counter_ptr) != val);
+    if constexpr (!final_sync) {
+      st_flag_release(peer_counter_ptr, flag);
+      while (ld_flag_acquire(self_counter_ptr) != flag);
     } else {
-      st_flag_volatile(peer_counter_ptr, val);
-      while (ld_flag_volatile(self_counter_ptr) != val);
+      st_flag_volatile(peer_counter_ptr, flag);
+      while (ld_flag_volatile(self_counter_ptr) != flag);
     }
   }
-  if constexpr (is_start || need_fence) __syncthreads();
+  if constexpr (!final_sync) __syncthreads();
+
+  // use one thread to update flag
+  if (threadIdx.x == 0) self_sg->_flag[blockIdx.x] = flag;
 }
 
+#else
+
+template <int ngpus>
+DINLINE void barrier_at_start(const RankSignals& sg, Signal* self_sg,
+                              int rank) {
+  uint32_t flag = self_sg->_flag[blockIdx.x] + 1;
+  if (threadIdx.x < ngpus) {
+    // simultaneously write to the corresponding flag of all ranks.
+    // Latency = 1 p2p write
+    __scoped_atomic_store_n(&sg.signals[threadIdx.x]->start[blockIdx.x][rank],
+                            flag, __ATOMIC_RELAXED, __MEMORY_SCOPE_SYSTEM);
+    // wait until we got true from all ranks
+    while (__scoped_atomic_load_n(&self_sg->start[blockIdx.x][threadIdx.x],
+                                  __ATOMIC_RELAXED,
+                                  __MEMORY_SCOPE_DEVICE) < flag);
+  }
+  __syncthreads();
+  // use one thread to update flag
+  if (threadIdx.x == 0) self_sg->_flag[blockIdx.x] = flag;
+}
+
+template <int ngpus, bool final_sync = false>
+DINLINE void barrier_at_end(const RankSignals& sg, Signal* self_sg, int rank) {
+  __syncthreads();
+  uint32_t flag = self_sg->_flag[blockIdx.x] + 1;
+  if (threadIdx.x < ngpus) {
+    // simultaneously write to the corresponding flag of all ranks.
+    // Latency = 1 p2p write
+    __scoped_atomic_store_n(&sg.signals[threadIdx.x]->end[blockIdx.x][rank],
+                            flag,
+                            final_sync ? __ATOMIC_RELAXED : __ATOMIC_RELEASE,
+                            __MEMORY_SCOPE_SYSTEM);
+    // wait until we got true from all ranks
+    while (
+        __scoped_atomic_load_n(&self_sg->end[blockIdx.x][threadIdx.x],
+                               final_sync ? __ATOMIC_RELAXED : __ATOMIC_ACQUIRE,
+                               __MEMORY_SCOPE_DEVICE) < flag);
+  }
+  if constexpr (!final_sync) __syncthreads();
+  // use one thread to update flag
+  if (threadIdx.x == 0) self_sg->_flag[blockIdx.x] = flag;
+}
+
+#endif
+
 template <typename P, int ngpus, typename A>
 DINLINE P packed_reduce(const P* ptrs[], int idx) {
   A tmp = upcast(ptrs[0][idx]);
@@ -220,13 +302,13 @@ __global__ void __launch_bounds__(512, 1)
   // note: we don't reorder the address so the accumulation order is the same
   // for all ranks, ensuring bitwise identical results
   auto dp = *_dp;
-  multi_gpu_barrier<ngpus, true>(sg, self_sg, rank);
+  barrier_at_start<ngpus>(sg, self_sg, rank);
   // do the actual reduction
   for (int idx = blockIdx.x * blockDim.x + threadIdx.x; idx < size;
        idx += gridDim.x * blockDim.x) {
     ((P*)result)[idx] = packed_reduce<P, ngpus, A>((const P**)&dp.ptrs[0], idx);
   }
-  multi_gpu_barrier<ngpus, false>(sg, self_sg, rank);
+  barrier_at_end<ngpus, true>(sg, self_sg, rank);
 }
 
 template <typename P>
@@ -255,18 +337,20 @@ __global__ void __launch_bounds__(512, 1)
     tmps[i] = get_tmp_buf<P>(sg.signals[target]);
   }
   auto tmp_out = tmps[0];
-  multi_gpu_barrier<ngpus, true>(sg, self_sg, rank);
+  barrier_at_start<ngpus>(sg, self_sg, rank);
+
   // stage 1: reduce scatter
   for (int idx = start + tid; idx < end; idx += stride) {
     tmp_out[idx - start] = packed_reduce<P, ngpus, A>(ptrs, idx);
   }
-  multi_gpu_barrier<ngpus, false, true>(sg, self_sg, rank);
+  barrier_at_end<ngpus>(sg, self_sg, rank);
 
   // stage 2: allgather. Note: it's important to match the tid between
   // the two stages, because visibility across devices is only guaranteed
   // between threads that have the same tid. If thread i computes the sum of
-  // start + i in the first stage, then thread i also gathers start + i from all
-  // ranks.
+  // start + i in the first stage, then thread i also gathers start + i from
+  // all ranks.
+
   for (int idx = tid; idx < largest_part; idx += stride) {
 #pragma unroll
     for (int i = 0; i < ngpus; i++) {
@@ -287,21 +371,22 @@ class CustomAllreduce {
  public:
   int rank_;
   int world_size_;
-  bool full_nvlink_;
+  // Full NVLink or xGMI connection between GPUs.
+  bool fully_connected_;
 
   RankSignals sg_;
-  // Stores an map from a pointer to its peer pointters from all ranks.
+  // Stores a map from a pointer to its peer pointers from all ranks.
   std::unordered_map<void*, RankData*> buffers_;
   Signal* self_sg_;
 
   // Stores rank data from all ranks. This is mainly for cuda graph purposes.
   // For cuda graph to work, all kernel arguments must be fixed during graph
-  // capture time. However, the peer pointers are not known during graph capture
-  // time. Therefore, during capture, we increment the rank data pointer and use
-  // that as the argument to the kernel. The kernel arguments are stored in
-  // graph_unreg_buffers_. The actual peer pointers will be filled in at the
-  // memory pointed to by the pointers in graph_unreg_buffers_ when
-  // the IPC handles are exchanged between ranks.
+  // capture time. However, the peer pointers are not known during graph
+  // capture time. Therefore, during capture, we increment the rank data
+  // pointer and use that as the argument to the kernel. The kernel arguments
+  // are stored in graph_unreg_buffers_. The actual peer pointers will be
+  // filled in at the memory pointed to by the pointers in
+  // graph_unreg_buffers_ when the IPC handles are exchanged between ranks.
   //
   // The overall process looks like this:
   // 1. Graph capture.
@@ -319,17 +404,18 @@ class CustomAllreduce {
    * Signals are an array of ipc-enabled buffers from all ranks.
    * For each of the buffer, the layout is as follows:
    * | -- sizeof(Signal) -- | ------ a few MB ----- |
-   * The first section is for allreduce synchronization, and the second section
-   * is for storing the intermediate results required by some allreduce algos.
+   * The first section is for allreduce synchronization, and the second
+   * section is for storing the intermediate results required by some
+   * allreduce algos.
    *
    * Note: this class does not own any device memory. Any required buffers
    * are passed in from the constructor.
    */
   CustomAllreduce(Signal** signals, void* rank_data, size_t rank_data_sz,
-                  int rank, int world_size, bool full_nvlink = true)
+                  int rank, int world_size, bool fully_connected = true)
       : rank_(rank),
         world_size_(world_size),
-        full_nvlink_(full_nvlink),
+        fully_connected_(fully_connected),
         self_sg_(signals[rank]),
         d_rank_data_base_(reinterpret_cast<RankData*>(rank_data)),
         d_rank_data_end_(d_rank_data_base_ + rank_data_sz / sizeof(RankData)) {
@@ -361,8 +447,7 @@ class CustomAllreduce {
       void* base_ptr;
       // note: must share the base address of each allocation, or we get wrong
       // address
-      if (cuPointerGetAttribute(&base_ptr,
-                                CU_POINTER_ATTRIBUTE_RANGE_START_ADDR,
+      if (cuPointerGetAttribute(&base_ptr, rangeStartAddrAttr,
                                 (CUdeviceptr)ptr) != CUDA_SUCCESS)
         throw std::runtime_error("failed to get pointer attr");
       CUDACHECK(cudaIpcGetMemHandle(
@@ -396,11 +481,11 @@ class CustomAllreduce {
 
   // Note: when registering graph buffers, we intentionally choose to not
   // deduplicate the addresses. That means if the allocator reuses some
-  // addresses, they will be registered again. This is to account for the remote
-  // possibility of different allocation patterns between ranks. For example,
-  // rank 1 may get the same input address for the second allreduce, but rank 2
-  // got a different address. IPC handles have internal reference counting
-  // mechanism so overhead should be small.
+  // addresses, they will be registered again. This is to account for the
+  // remote possibility of different allocation patterns between ranks. For
+  // example, rank 1 may get the same input address for the second allreduce,
+  // but rank 2 got a different address. IPC handles have internal reference
+  // counting mechanism so overhead should be small.
   void register_graph_buffers(
       const std::vector<std::string>& handles,
       const std::vector<std::vector<int64_t>>& offsets) {
@@ -431,15 +516,15 @@ class CustomAllreduce {
   /**
    * Performs allreduce, assuming input has already been registered.
    *
-   * Block and grid default configs are results after careful grid search. Using
-   * 36 blocks give the best or close to the best runtime on the devices I
-   * tried: A100, A10, A30, T4, V100. You'll notice that NCCL kernels also only
-   * take a small amount of SMs. Not quite sure the underlying reason, but my
-   * guess is that too many SMs will cause contention on NVLink bus.
+   * Block and grid default configs are results after careful grid search.
+   * Using 36 blocks give the best or close to the best runtime on the devices
+   * I tried: A100, A10, A30, T4, V100. You'll notice that NCCL kernels also
+   * only take a small amount of SMs. Not quite sure the underlying reason,
+   * but my guess is that too many SMs will cause contention on NVLink bus.
    */
   template <typename T>
   void allreduce(cudaStream_t stream, T* input, T* output, int size,
-                 int threads = 512, int block_limit = 36) {
+                 int threads = 512, int block_limit = defaultBlockLimit) {
     auto d = packed_t<T>::P::size;
     if (size % d != 0)
       throw std::runtime_error(
@@ -473,13 +558,11 @@ class CustomAllreduce {
 #define KL(ngpus, name)                                                       \
   name<T, ngpus><<<blocks, threads, 0, stream>>>(ptrs, sg_, self_sg_, output, \
                                                  rank_, size);
-    // TODO(hanzhi713): Threshold is different for A100 and H100.
-    // Add per device threshold.
 #define REDUCE_CASE(ngpus)                            \
   case ngpus: {                                       \
     if (world_size_ == 2) {                           \
       KL(ngpus, cross_device_reduce_1stage);          \
-    } else if (full_nvlink_) {                        \
+    } else if (fully_connected_) {                    \
       if ((world_size_ <= 4 && bytes < 512 * 1024) || \
           (world_size_ <= 8 && bytes < 256 * 1024)) { \
         KL(ngpus, cross_device_reduce_1stage);        \
@@ -497,7 +580,8 @@ class CustomAllreduce {
       REDUCE_CASE(8)
       default:
         throw std::runtime_error(
-            "custom allreduce only supports num gpus in (2,4,6,8). Actual num "
+            "custom allreduce only supports num gpus in (2,4,6,8). Actual "
+            "num "
             "gpus = " +
             std::to_string(world_size_));
     }
@@ -511,10 +595,11 @@ class CustomAllreduce {
     }
   }
 };
+
 /**
- * To inspect PTX/SASS, copy paste this header file to compiler explorer and add
- a template instantiation:
+ * To inspect PTX/SASS, copy paste this header file to compiler explorer and
+ add a template instantiation:
  * template void vllm::CustomAllreduce::allreduce<half>(cudaStream_t, half *,
  half *, int, int, int);
 */
-}  // namespace vllm
+}  // namespace vllm

csrc/custom_all_reduce_test.cu

@@ -1,9 +1,9 @@
 /**
  * This is a standalone test for custom allreduce.
  * To compile, make sure you have MPI and NCCL installed in your system.
- * export MPI_HOME=xxx
+ * export MPI_HOME=XXX
  * nvcc -O2 -arch=native -std=c++17 custom_all_reduce_test.cu -o
- * custom_all_reduce_test -lnccl -I${MPI_HOME} -lmpi
+ * custom_all_reduce_test -lnccl -I${MPI_HOME}/include -lmpi
  *
  * Warning: this C++ test is not designed to be very readable and was used
  * during the rapid prototyping process.
@@ -22,7 +22,15 @@
 #include "cuda_profiler_api.h"
 #include "custom_all_reduce.cuh"
 #include "mpi.h"
-#include "nccl.h"
+#ifdef USE_ROCM
+  #include <hip/hip_bf16.h>
+typedef __hip_bfloat16 nv_bfloat16;
+  #include "rccl/rccl.h"
+  #include "custom_all_reduce_hip.cuh"
+#else
+  #include "nccl.h"
+  #include "custom_all_reduce.cuh"
+#endif
 
 #define MPICHECK(cmd)                                                  \
   do {                                                                 \
@@ -43,16 +51,29 @@
     }                                                               \
   } while (0)
 
+#ifdef USE_ROCM
 __global__ void dummy_kernel() {
-#if defined(__CUDA_ARCH__) && __CUDA_ARCH__ >= 700
+  for (int i = 0; i < 100; i++) {
+    uint64_t start = wall_clock64();
+    uint64_t cycles_elapsed;
+    do {
+      cycles_elapsed = wall_clock64() - start;
+    } while (cycles_elapsed < 100);
+  }
   for (int i = 0; i < 100; i++) __nanosleep(1000000);  // 100ms
+}
 #else
+__global__ void dummy_kernel() {
+  #if defined(__CUDA_ARCH__) && __CUDA_ARCH__ >= 700
+  for (int i = 0; i < 100; i++) __nanosleep(1000000);  // 100ms
+  #else
   for (int i = 0; i < 100; i++) {
     long long int start = clock64();
     while (clock64() - start < 150000000);  // approximately 98.4ms on P40
   }
-#endif
+  #endif
 }
+#endif
 
 template <typename T>
 __global__ void set_data(T* data, int size, int myRank) {
@@ -121,8 +142,14 @@ void run(int myRank, int nRanks, ncclComm_t& comm, int threads, int block_limit,
    * registration, they are allocated and registered together in the test for
    * convenience.
    */
+#ifdef USE_ROCM
+  CUDACHECK(hipExtMallocWithFlags(
+      (void**)&buffer, 2 * data_size * sizeof(T) + sizeof(vllm::Signal),
+      hipDeviceMallocUncached));
+#else
   CUDACHECK(
       cudaMalloc(&buffer, 2 * data_size * sizeof(T) + sizeof(vllm::Signal)));
+#endif
   CUDACHECK(
       cudaMemset(buffer, 0, 2 * data_size * sizeof(T) + sizeof(vllm::Signal)));
   CUDACHECK(cudaMalloc(&self_data_copy, data_size * sizeof(T)));
@@ -311,13 +338,18 @@ int main(int argc, char** argv) {
 
   bool performance_test = true;
   cudaProfilerStart();
-  // Uncomment to scan through different block size configs.
-  // for (int threads : {256, 512, 1024}) {
-  //   for (int block_limit = 16; block_limit < 112; block_limit += 4) {
-  //     run<half>(myRank, nRanks, comm, threads, block_limit, 1024 * 1024,
-  //     performance_test);
-  //   }
-  // }
+// Uncomment to scan through different block size configs.
+// for (int threads : {256, 512, 1024}) {
+//   for (int block_limit = 16; block_limit < 112; block_limit += 4) {
+//     run<half>(myRank, nRanks, comm, threads, block_limit, 1024 * 1024,
+//     performance_test);
+//   }
+// }
+#ifdef USE_ROCM
+  const int block_limit = 16;
+#else
+  const int block_limit = 36;
+#endif
   // Scan through different sizes to test performance.
   for (int sz = 512; sz <= (8 << 20); sz *= 2) {
     run<half>(myRank, nRanks, comm, 512, 36, sz + 8 * 47, performance_test);
@@ -326,4 +358,4 @@ int main(int argc, char** argv) {
   cudaProfilerStop();
   MPICHECK(MPI_Finalize());
   return EXIT_SUCCESS;
-}
+}

csrc/mamba/causal_conv1d/causal_conv1d.cu

@@ -422,7 +422,7 @@ void causal_conv1d_fwd_kernel(ConvParamsBase params) {
         int final_state_position =  ((seqlen - (kWidth - 1)) - (n_chunks - 1) * kChunkSize);
         // in case the final state is separated between the last "smem_exchange" and 
         // and the one before it (chunk = n_chunks - 1 and chunk = n_chunks - 2), 
-        // (which occurs when `final_state_position` is a non-positivie index)
+        // (which occurs when `final_state_position` is a non-positive index)
         // we load the correct data from smem_exchange from both chunks, the last chunk iteration and the one before it
         if (conv_states != nullptr && final_state_position < 0 && seqlen > kWidth){
             input_t vals_load[kNElts] = {0};

csrc/moe/marlin_moe_wna16/generate_kernels.py

@@ -0,0 +1,103 @@
+# SPDX-License-Identifier: Apache-2.0
+import glob
+import itertools
+import os
+import subprocess
+
+import jinja2
+
+FILE_HEAD = """
+// auto generated by generate.py
+// clang-format off
+
+#include "kernel.h"
+#include "marlin_template.h"
+
+namespace MARLIN_NAMESPACE_NAME {
+""".strip()
+
+TEMPLATE = ("template __global__ void Marlin<"
+            "{{scalar_t}}, "
+            "{{w_type_id}}, "
+            "{{threads}}, "
+            "{{thread_m_blocks}}, "
+            "{{thread_n_blocks}}, "
+            "{{thread_k_blocks}}, "
+            "{{'true' if m_block_size_8 else 'false'}}, "
+            "{{stages}}, "
+            "{{'true' if has_act_order else 'false'}}, "
+            "{{'true' if has_zp else 'false'}}, "
+            "{{group_blocks}}, "
+            "{{'true' if is_zp_float else 'false'}}>"
+            "( MARLIN_KERNEL_PARAMS );")
+
+# int8 with zero point case (vllm::kU8) is also supported,
+# we don't add it to reduce wheel size.
+SCALAR_TYPES = ["vllm::kU4", "vllm::kU4B8", "vllm::kU8B128"]
+THREAD_CONFIGS = [(128, 128, 256), (64, 256, 256), (64, 128, 128)]
+
+THREAD_M_BLOCKS = [0.5, 1, 2, 3, 4]
+# group_blocks:
+#   = 0 : act order case
+#   = -1 : channelwise quantization
+#   > 0 : group_size=16*group_blocks
+GROUP_BLOCKS = [0, -1, 2, 4, 8]
+DTYPES = ["fp16", "bf16"]
+
+
+def remove_old_kernels():
+    for filename in glob.glob(os.path.dirname(__file__) + "/kernel_*.cu"):
+        subprocess.call(["rm", "-f", filename])
+
+
+def generate_new_kernels():
+    for scalar_type, dtype in itertools.product(SCALAR_TYPES, DTYPES):
+        has_zp = "B" not in scalar_type
+        all_template_str_list = []
+
+        for group_blocks, m_blocks, thread_configs in itertools.product(
+                GROUP_BLOCKS, THREAD_M_BLOCKS, THREAD_CONFIGS):
+
+            has_act_order = group_blocks == 0
+            if has_zp and has_act_order:
+                continue
+            if thread_configs[2] == 256:
+                if m_blocks <= 1 and thread_configs[0] != 128:
+                    continue
+                if m_blocks > 1 and thread_configs[0] != 64:
+                    continue
+
+            k_blocks = thread_configs[0] // 16
+            n_blocks = thread_configs[1] // 16
+            threads = thread_configs[2]
+
+            c_dtype = "half" if dtype == "fp16" else "nv_bfloat16"
+
+            template_str = jinja2.Template(TEMPLATE).render(
+                scalar_t=c_dtype,
+                w_type_id=scalar_type + ".id()",
+                threads=threads,
+                thread_m_blocks=max(m_blocks, 1),
+                thread_n_blocks=n_blocks,
+                thread_k_blocks=k_blocks,
+                m_block_size_8=m_blocks == 0.5,
+                stages="pipe_stages",
+                has_act_order=has_act_order,
+                has_zp=has_zp,
+                group_blocks=group_blocks,
+                is_zp_float=False,
+            )
+
+            all_template_str_list.append(template_str)
+
+        file_content = FILE_HEAD + "\n\n"
+        file_content += "\n\n".join(all_template_str_list) + "\n\n}\n"
+        filename = f"kernel_{dtype}_{scalar_type[6:].lower()}.cu"
+
+        with open(os.path.join(os.path.dirname(__file__), filename), "w") as f:
+            f.write(file_content)
+
+
+if __name__ == "__main__":
+    remove_old_kernels()
+    generate_new_kernels()

csrc/moe/marlin_moe_wna16/kernel.h

@@ -0,0 +1,44 @@
+
+#ifndef MARLIN_NAMESPACE_NAME
+  #define MARLIN_NAMESPACE_NAME marlin_moe_wna16
+#endif
+
+#include "quantization/gptq_marlin/marlin.cuh"
+#include "quantization/gptq_marlin/marlin_dtypes.cuh"
+#include "core/scalar_type.hpp"
+
+#define MARLIN_KERNEL_PARAMS                                                \
+  const int4 *__restrict__ A, const int4 *__restrict__ B,                   \
+      int4 *__restrict__ C, int4 *__restrict__ C_tmp,                       \
+      const int4 *__restrict__ scales_ptr, const int4 *__restrict__ zp_ptr, \
+      const int *__restrict__ g_idx,                                        \
+      const int32_t *__restrict__ sorted_token_ids_ptr,                     \
+      const int32_t *__restrict__ expert_ids_ptr,                           \
+      const int32_t *__restrict__ num_tokens_past_padded_ptr,               \
+      const float *__restrict__ topk_weights_ptr, int top_k,                \
+      bool mul_topk_weights, bool is_ep, int num_groups, int prob_m,        \
+      int prob_n, int prob_k, int *locks, bool use_atomic_add,              \
+      bool use_fp32_reduce
+
+namespace MARLIN_NAMESPACE_NAME {
+template <typename scalar_t,  // compute dtype, half or nv_float16
+          const vllm::ScalarTypeId w_type_id,  // weight ScalarType id
+          const int threads,          // number of threads in a threadblock
+          const int thread_m_blocks,  // number of 16x16 blocks in the m
+                                      // dimension (batchsize) of the
+                                      // threadblock
+          const int thread_n_blocks,  // same for n dimension (output)
+          const int thread_k_blocks,  // same for k dimension (reduction)
+          const bool m_block_size_8,  // whether m_block_size == 8
+                                      // only works when thread_m_blocks == 1
+          const int stages,  // number of stages for the async global->shared
+                             // fetch pipeline
+          const bool has_act_order,  // whether act_order is enabled
+          const bool has_zp,         // whether zero-points are enabled
+          const int group_blocks,    // number of consecutive 16x16 blocks
+                                     // with a separate quantization scale
+          const bool is_zp_float     // is zero point of float16 type?
+          >
+__global__ void Marlin(MARLIN_KERNEL_PARAMS);
+
+}

csrc/moe/marlin_moe_wna16/ops.cu

@@ -0,0 +1,927 @@
+/*
+ * Modified by Neural Magic
+ * Copyright (C) Marlin.2024 Elias Frantar
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *         http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * Adapted from https://github.com/IST-DASLab/marlin
+ */
+
+#ifndef MARLIN_NAMESPACE_NAME
+  #define MARLIN_NAMESPACE_NAME marlin_moe_wna16
+#endif
+
+#include "kernel.h"
+#include "core/registration.h"
+
+#define STATIC_ASSERT_SCALAR_TYPE_VALID(scalar_t)               \
+  static_assert(std::is_same<scalar_t, half>::value ||          \
+                    std::is_same<scalar_t, nv_bfloat16>::value, \
+                "only float16 and bfloat16 is supported");
+
+namespace MARLIN_NAMESPACE_NAME {
+
+__global__ void MarlinDefault(MARLIN_KERNEL_PARAMS){};
+
+using MarlinFuncPtr = void (*)(MARLIN_KERNEL_PARAMS);
+
+#if defined(__CUDA_ARCH__) && __CUDA_ARCH__ < 800
+
+template <int moe_block_size>
+__global__ void permute_cols_kernel(
+    int4 const* __restrict__ a_int4_ptr, int const* __restrict__ perm_int_ptr,
+    int4* __restrict__ out_int4_ptr,
+    const int32_t* __restrict__ sorted_token_ids_ptr,
+    const int32_t* __restrict__ expert_ids_ptr,
+    const int32_t* __restrict__ num_tokens_past_padded_ptr, int size_m,
+    int size_k, int top_k) {};
+
+}  // namespace marlin
+
+torch::Tensor moe_wna16_marlin_gemm(
+    torch::Tensor& a, std::optional<torch::Tensor> const& c_or_none,
+    torch::Tensor& b_q_weight, torch::Tensor& b_scales,
+    std::optional<torch::Tensor> const& b_zeros_or_none,
+    std::optional<torch::Tensor> const& g_idx_or_none,
+    std::optional<torch::Tensor> const& perm_or_none, torch::Tensor& workspace,
+    torch::Tensor& sorted_token_ids, torch::Tensor& expert_ids,
+    torch::Tensor& num_tokens_past_padded, torch::Tensor& topk_weights,
+    int64_t moe_block_size, int64_t top_k, bool mul_topk_weights, bool is_ep,
+    vllm::ScalarTypeId const& b_q_type_id, int64_t size_m, int64_t size_n,
+    int64_t size_k, bool is_k_full, bool use_atomic_add, bool use_fp32_reduce,
+    bool is_zp_float) {
+  TORCH_CHECK_NOT_IMPLEMENTED(false,
+                              "marlin_gemm(..) requires CUDA_ARCH >= 8.0");
+  return torch::empty({1, 1});
+}
+
+#else
+
+// For a given "a" of size [M,K] performs a permutation of the K columns based
+// on the given "perm" indices.
+template <int moe_block_size>
+__global__ void permute_cols_kernel(
+    int4 const* __restrict__ a_int4_ptr, int const* __restrict__ perm_int_ptr,
+    int4* __restrict__ out_int4_ptr,
+    const int32_t* __restrict__ sorted_token_ids_ptr,
+    const int32_t* __restrict__ expert_ids_ptr,
+    const int32_t* __restrict__ num_tokens_past_padded_ptr, int size_m,
+    int size_k, int top_k) {
+  int num_tokens_past_padded = num_tokens_past_padded_ptr[0];
+  int num_moe_blocks = div_ceil(num_tokens_past_padded, moe_block_size);
+  int32_t block_sorted_ids[moe_block_size];
+  int block_num_valid_tokens = 0;
+  int64_t old_expert_id = 0;
+  int64_t expert_id = 0;
+  int row_stride = size_k * sizeof(half) / 16;
+
+  auto read_moe_block_data = [&](int block_id) {
+    block_num_valid_tokens = moe_block_size;
+    int4* tmp_block_sorted_ids = reinterpret_cast<int4*>(block_sorted_ids);
+    for (int i = 0; i < moe_block_size / 4; i++) {
+      tmp_block_sorted_ids[i] =
+          ((int4*)sorted_token_ids_ptr)[block_id * moe_block_size / 4 + i];
+    }
+    for (int i = 0; i < moe_block_size; i++) {
+      if (block_sorted_ids[i] >= size_m * top_k) {
+        block_num_valid_tokens = i;
+        break;
+      };
+    }
+  };
+
+  auto permute_row = [&](int row) {
+    int iters = size_k / default_threads;
+    int rest = size_k % default_threads;
+
+    int in_offset = (row / top_k) * row_stride;
+    int out_offset = row * row_stride;
+
+    half const* a_row_half =
+        reinterpret_cast<half const*>(a_int4_ptr + in_offset);
+    half* out_half = reinterpret_cast<half*>(out_int4_ptr + out_offset);
+
+    int base_k = 0;
+
+    for (int i = 0; i < iters; i++) {
+      int cur_k = base_k + threadIdx.x;
+      int src_pos = perm_int_ptr[cur_k];
+
+      out_half[cur_k] = a_row_half[src_pos];
+
+      base_k += default_threads;
+    }
+
+    if (rest) {
+      if (threadIdx.x < rest) {
+        int cur_k = base_k + threadIdx.x;
+        int src_pos = perm_int_ptr[cur_k];
+
+        out_half[cur_k] = a_row_half[src_pos];
+      }
+    }
+  };
+
+  for (int index = blockIdx.x; index < num_moe_blocks; index += gridDim.x) {
+    old_expert_id = expert_id;
+    int tmp_expert_id = expert_ids_ptr[index];
+    if (tmp_expert_id == -1) continue;
+    expert_id = tmp_expert_id;
+    perm_int_ptr += (expert_id - old_expert_id) * size_k;
+    read_moe_block_data(index);
+
+    for (int i = 0; i < block_num_valid_tokens; i++)
+      permute_row(block_sorted_ids[i]);
+  }
+}
+
+typedef struct {
+  int thread_k;
+  int thread_n;
+  int num_threads;
+} thread_config_t;
+
+thread_config_t small_batch_thread_configs[] = {
+    // Ordered by priority
+
+    // thread_k, thread_n, num_threads
+    {128, 128, 256},
+    {64, 128, 128}};
+
+thread_config_t large_batch_thread_configs[] = {
+    // Ordered by priority
+
+    // thread_k, thread_n, num_threads
+    {64, 256, 256},
+    {64, 128, 128}};
+
+typedef struct {
+  int blocks_per_sm;
+  thread_config_t tb_cfg;
+} exec_config_t;
+
+int get_scales_cache_size(thread_config_t const& th_config, int prob_m,
+                          int prob_n, int prob_k, int num_bits, int group_size,
+                          bool has_act_order, bool is_k_full) {
+  bool cache_scales_chunk = has_act_order && !is_k_full;
+
+  int tb_n = th_config.thread_n;
+  int tb_k = th_config.thread_k;
+
+  // Get max scale groups per thread-block
+  int tb_groups;
+  if (group_size == -1) {
+    tb_groups = 1;
+  } else if (group_size == 0) {
+    tb_groups = div_ceil(tb_k, 32);  // Worst case is 32 group size
+  } else {
+    tb_groups = div_ceil(tb_k, group_size);
+  }
+
+  if (cache_scales_chunk) {
+    int load_groups =
+        tb_groups * pipe_stages * 2;     // Chunk size is 2x pipeline over dim K
+    load_groups = max(load_groups, 32);  // We load at least 32 scale groups
+    return load_groups * tb_n * 2;
+
+  } else {
+    int tb_scales = tb_groups * tb_n * 2;
+
+    return tb_scales * pipe_stages;
+  }
+}
+
+int get_kernel_cache_size(thread_config_t const& th_config, int thread_m_blocks,
+                          int prob_m, int prob_n, int prob_k, int num_bits,
+                          int group_size, bool has_act_order, bool is_k_full,
+                          int has_zp, int is_zp_float) {
+  int pack_factor = 32 / num_bits;
+
+  // Get B size
+  int tb_k = th_config.thread_k;
+  int tb_n = th_config.thread_n;
+  int tb_m = thread_m_blocks * 16;
+
+  // shm size for block_sorted_ids/block_topk_weights
+  // both of them requires tb_m * 4 bytes (tb_m * int32 or tb_m * float32)
+  int sh_block_meta_size = tb_m * 4 * 2;
+  int sh_a_size = pipe_stages * (tb_m * tb_k) * 2;
+  int sh_b_size = pipe_stages * (tb_k * tb_n / pack_factor) * 4;
+  int sh_s_size =
+      get_scales_cache_size(th_config, prob_m, prob_n, prob_k, num_bits,
+                            group_size, has_act_order, is_k_full);
+  int sh_g_idx_size = has_act_order && !is_k_full ? pipe_stages * tb_k / 4 : 0;
+  int sh_zp_size = 0;
+  if (has_zp) {
+    if (is_zp_float)
+      sh_zp_size = sh_s_size;
+    else if (num_bits == 4)
+      sh_zp_size = sh_s_size / 4;
+    else if (num_bits == 8)
+      sh_zp_size = sh_s_size / 2;
+  }
+
+  int total_size = sh_a_size + sh_b_size + sh_s_size + sh_zp_size +
+                   sh_g_idx_size + sh_block_meta_size;
+
+  return total_size;
+}
+
+bool is_valid_config(thread_config_t const& th_config, int thread_m_blocks,
+                     int prob_m, int prob_n, int prob_k, int num_bits,
+                     int group_size, bool has_act_order, bool is_k_full,
+                     int has_zp, int is_zp_float, int max_shared_mem) {
+  // Sanity
+  if (th_config.thread_k == -1 || th_config.thread_n == -1 ||
+      th_config.num_threads == -1) {
+    return false;
+  }
+
+  // Verify K/N are divisible by thread K/N
+  if (prob_k % th_config.thread_k != 0 || prob_n % th_config.thread_n != 0) {
+    return false;
+  }
+
+  // Verify min for thread K/N
+  if (th_config.thread_n < min_thread_n || th_config.thread_k < min_thread_k) {
+    return false;
+  }
+
+  // num_threads must be at least 128 (= 4 warps)
+  if (th_config.num_threads < 128) {
+    return false;
+  }
+
+  // Check that pipeline fits into cache
+  int cache_size = get_kernel_cache_size(
+      th_config, thread_m_blocks, prob_m, prob_n, prob_k, num_bits, group_size,
+      has_act_order, is_k_full, has_zp, is_zp_float);
+  return cache_size <= max_shared_mem;
+}
+
+  #define __GET_IF(W_TYPE, THREAD_M_BLOCKS, THREAD_N_BLOCKS, THREAD_K_BLOCKS, \
+                   M_BLOCK_SIZE_8, HAS_ACT_ORDER, HAS_ZP, GROUP_BLOCKS,       \
+                   NUM_THREADS, IS_ZP_FLOAT)                                  \
+    else if (q_type == W_TYPE && thread_m_blocks == THREAD_M_BLOCKS &&        \
+             thread_n_blocks == THREAD_N_BLOCKS &&                            \
+             thread_k_blocks == THREAD_K_BLOCKS &&                            \
+             m_block_size_8 == M_BLOCK_SIZE_8 &&                              \
+             has_act_order == HAS_ACT_ORDER && has_zp == HAS_ZP &&            \
+             group_blocks == GROUP_BLOCKS && num_threads == NUM_THREADS &&    \
+             is_zp_float == IS_ZP_FLOAT) {                                    \
+      kernel = Marlin<scalar_t, W_TYPE.id(), NUM_THREADS, THREAD_M_BLOCKS,    \
+                      THREAD_N_BLOCKS, THREAD_K_BLOCKS, M_BLOCK_SIZE_8,       \
+                      pipe_stages, HAS_ACT_ORDER, HAS_ZP, GROUP_BLOCKS,       \
+                      IS_ZP_FLOAT>;                                           \
+    }
+
+  #define GPTQ_GET_IF_M1(W_TYPE, N_BLOCKS, K_BLOCKS, NUM_THREADS)              \
+    __GET_IF(W_TYPE, 1, N_BLOCKS, K_BLOCKS, true, true, false, 0, NUM_THREADS, \
+             false)                                                            \
+    __GET_IF(W_TYPE, 1, N_BLOCKS, K_BLOCKS, false, true, false, 0,             \
+             NUM_THREADS, false)                                               \
+                                                                               \
+    __GET_IF(W_TYPE, 1, N_BLOCKS, K_BLOCKS, true, false, false, -1,            \
+             NUM_THREADS, false)                                               \
+    __GET_IF(W_TYPE, 1, N_BLOCKS, K_BLOCKS, true, false, false, 2,             \
+             NUM_THREADS, false)                                               \
+    __GET_IF(W_TYPE, 1, N_BLOCKS, K_BLOCKS, true, false, false, 4,             \
+             NUM_THREADS, false)                                               \
+    __GET_IF(W_TYPE, 1, N_BLOCKS, K_BLOCKS, true, false, false, 8,             \
+             NUM_THREADS, false)                                               \
+    __GET_IF(W_TYPE, 1, N_BLOCKS, K_BLOCKS, false, false, false, -1,           \
+             NUM_THREADS, false)                                               \
+    __GET_IF(W_TYPE, 1, N_BLOCKS, K_BLOCKS, false, false, false, 2,            \
+             NUM_THREADS, false)                                               \
+    __GET_IF(W_TYPE, 1, N_BLOCKS, K_BLOCKS, false, false, false, 4,            \
+             NUM_THREADS, false)                                               \
+    __GET_IF(W_TYPE, 1, N_BLOCKS, K_BLOCKS, false, false, false, 8,            \
+             NUM_THREADS, false)
+
+  #define GPTQ_GET_IF_M234(W_TYPE, N_BLOCKS, K_BLOCKS, NUM_THREADS)  \
+    __GET_IF(W_TYPE, 2, N_BLOCKS, K_BLOCKS, false, true, false, 0,   \
+             NUM_THREADS, false)                                     \
+    __GET_IF(W_TYPE, 3, N_BLOCKS, K_BLOCKS, false, true, false, 0,   \
+             NUM_THREADS, false)                                     \
+    __GET_IF(W_TYPE, 4, N_BLOCKS, K_BLOCKS, false, true, false, 0,   \
+             NUM_THREADS, false)                                     \
+                                                                     \
+    __GET_IF(W_TYPE, 2, N_BLOCKS, K_BLOCKS, false, false, false, -1, \
+             NUM_THREADS, false)                                     \
+    __GET_IF(W_TYPE, 2, N_BLOCKS, K_BLOCKS, false, false, false, 2,  \
+             NUM_THREADS, false)                                     \
+    __GET_IF(W_TYPE, 2, N_BLOCKS, K_BLOCKS, false, false, false, 4,  \
+             NUM_THREADS, false)                                     \
+    __GET_IF(W_TYPE, 2, N_BLOCKS, K_BLOCKS, false, false, false, 8,  \
+             NUM_THREADS, false)                                     \
+                                                                     \
+    __GET_IF(W_TYPE, 3, N_BLOCKS, K_BLOCKS, false, false, false, -1, \
+             NUM_THREADS, false)                                     \
+    __GET_IF(W_TYPE, 3, N_BLOCKS, K_BLOCKS, false, false, false, 2,  \
+             NUM_THREADS, false)                                     \
+    __GET_IF(W_TYPE, 3, N_BLOCKS, K_BLOCKS, false, false, false, 4,  \
+             NUM_THREADS, false)                                     \
+    __GET_IF(W_TYPE, 3, N_BLOCKS, K_BLOCKS, false, false, false, 8,  \
+             NUM_THREADS, false)                                     \
+                                                                     \
+    __GET_IF(W_TYPE, 4, N_BLOCKS, K_BLOCKS, false, false, false, -1, \
+             NUM_THREADS, false)                                     \
+    __GET_IF(W_TYPE, 4, N_BLOCKS, K_BLOCKS, false, false, false, 2,  \
+             NUM_THREADS, false)                                     \
+    __GET_IF(W_TYPE, 4, N_BLOCKS, K_BLOCKS, false, false, false, 4,  \
+             NUM_THREADS, false)                                     \
+    __GET_IF(W_TYPE, 4, N_BLOCKS, K_BLOCKS, false, false, false, 8,  \
+             NUM_THREADS, false)
+
+  #define AWQ_GET_IF_M1(W_TYPE, N_BLOCKS, K_BLOCKS, NUM_THREADS)               \
+    __GET_IF(W_TYPE, 1, N_BLOCKS, K_BLOCKS, true, false, true, -1,             \
+             NUM_THREADS, false)                                               \
+    __GET_IF(W_TYPE, 1, N_BLOCKS, K_BLOCKS, true, false, true, 2, NUM_THREADS, \
+             false)                                                            \
+    __GET_IF(W_TYPE, 1, N_BLOCKS, K_BLOCKS, true, false, true, 4, NUM_THREADS, \
+             false)                                                            \
+    __GET_IF(W_TYPE, 1, N_BLOCKS, K_BLOCKS, true, false, true, 8, NUM_THREADS, \
+             false)                                                            \
+    __GET_IF(W_TYPE, 1, N_BLOCKS, K_BLOCKS, false, false, true, -1,            \
+             NUM_THREADS, false)                                               \
+    __GET_IF(W_TYPE, 1, N_BLOCKS, K_BLOCKS, false, false, true, 2,             \
+             NUM_THREADS, false)                                               \
+    __GET_IF(W_TYPE, 1, N_BLOCKS, K_BLOCKS, false, false, true, 4,             \
+             NUM_THREADS, false)                                               \
+    __GET_IF(W_TYPE, 1, N_BLOCKS, K_BLOCKS, false, false, true, 8,             \
+             NUM_THREADS, false)
+
+  #define AWQ_GET_IF_M234(W_TYPE, N_BLOCKS, K_BLOCKS, NUM_THREADS)  \
+    __GET_IF(W_TYPE, 2, N_BLOCKS, K_BLOCKS, false, false, true, -1, \
+             NUM_THREADS, false)                                    \
+    __GET_IF(W_TYPE, 2, N_BLOCKS, K_BLOCKS, false, false, true, 2,  \
+             NUM_THREADS, false)                                    \
+    __GET_IF(W_TYPE, 2, N_BLOCKS, K_BLOCKS, false, false, true, 4,  \
+             NUM_THREADS, false)                                    \
+    __GET_IF(W_TYPE, 2, N_BLOCKS, K_BLOCKS, false, false, true, 8,  \
+             NUM_THREADS, false)                                    \
+                                                                    \
+    __GET_IF(W_TYPE, 3, N_BLOCKS, K_BLOCKS, false, false, true, -1, \
+             NUM_THREADS, false)                                    \
+    __GET_IF(W_TYPE, 3, N_BLOCKS, K_BLOCKS, false, false, true, 2,  \
+             NUM_THREADS, false)                                    \
+    __GET_IF(W_TYPE, 3, N_BLOCKS, K_BLOCKS, false, false, true, 4,  \
+             NUM_THREADS, false)                                    \
+    __GET_IF(W_TYPE, 3, N_BLOCKS, K_BLOCKS, false, false, true, 8,  \
+             NUM_THREADS, false)                                    \
+                                                                    \
+    __GET_IF(W_TYPE, 4, N_BLOCKS, K_BLOCKS, false, false, true, -1, \
+             NUM_THREADS, false)                                    \
+    __GET_IF(W_TYPE, 4, N_BLOCKS, K_BLOCKS, false, false, true, 2,  \
+             NUM_THREADS, false)                                    \
+    __GET_IF(W_TYPE, 4, N_BLOCKS, K_BLOCKS, false, false, true, 4,  \
+             NUM_THREADS, false)                                    \
+    __GET_IF(W_TYPE, 4, N_BLOCKS, K_BLOCKS, false, false, true, 8,  \
+             NUM_THREADS, false)
+
+  // We currently have 4-bit models only with group_blocks == 4
+  #define HQQ_GET_IF(W_TYPE, N_BLOCKS, K_BLOCKS, NUM_THREADS)                  \
+    __GET_IF(W_TYPE, 1, N_BLOCKS, K_BLOCKS, true, false, true, 4, NUM_THREADS, \
+             true)                                                             \
+    __GET_IF(W_TYPE, 1, N_BLOCKS, K_BLOCKS, false, false, true, 4,             \
+             NUM_THREADS, true)                                                \
+    __GET_IF(W_TYPE, 2, N_BLOCKS, K_BLOCKS, false, false, true, 4,             \
+             NUM_THREADS, true)                                                \
+    __GET_IF(W_TYPE, 3, N_BLOCKS, K_BLOCKS, false, false, true, 4,             \
+             NUM_THREADS, true)                                                \
+    __GET_IF(W_TYPE, 4, N_BLOCKS, K_BLOCKS, false, false, true, 4,             \
+             NUM_THREADS, true)
+
+template <typename scalar_t>
+MarlinFuncPtr get_marlin_kernel(const vllm::ScalarType q_type,
+                                int thread_m_blocks, int thread_n_blocks,
+                                int thread_k_blocks, bool m_block_size_8,
+                                bool has_act_order, bool has_zp,
+                                int group_blocks, int num_threads,
+                                bool is_zp_float) {
+  int num_bits = q_type.size_bits();
+  auto kernel = MarlinDefault;
+  if (false) {
+  }
+  GPTQ_GET_IF_M1(vllm::kU4B8, 8, 8, 256)
+  GPTQ_GET_IF_M1(vllm::kU4B8, 8, 4, 128)
+
+  GPTQ_GET_IF_M234(vllm::kU4B8, 16, 4, 256)
+  GPTQ_GET_IF_M234(vllm::kU4B8, 8, 4, 128)
+
+  GPTQ_GET_IF_M1(vllm::kU8B128, 8, 8, 256)
+  GPTQ_GET_IF_M1(vllm::kU8B128, 8, 4, 128)
+
+  GPTQ_GET_IF_M234(vllm::kU8B128, 16, 4, 256)
+  GPTQ_GET_IF_M234(vllm::kU8B128, 8, 4, 128)
+
+  AWQ_GET_IF_M1(vllm::kU4, 8, 8, 256)
+  AWQ_GET_IF_M1(vllm::kU4, 8, 4, 128)
+
+  AWQ_GET_IF_M234(vllm::kU4, 16, 4, 256)
+  AWQ_GET_IF_M234(vllm::kU4, 8, 4, 128)
+
+  return kernel;
+}
+
+template <typename scalar_t>
+exec_config_t determine_exec_config(const vllm::ScalarType& q_type, int prob_m,
+                                    int prob_n, int prob_k, int thread_m_blocks,
+                                    bool m_block_size_8, int num_bits,
+                                    int group_size, bool has_act_order,
+                                    bool is_k_full, bool has_zp,
+                                    bool is_zp_float, int max_shared_mem) {
+  exec_config_t exec_cfg = exec_config_t{1, thread_config_t{-1, -1, -1}};
+  thread_config_t* thread_configs = thread_m_blocks > 1
+                                        ? large_batch_thread_configs
+                                        : small_batch_thread_configs;
+  int thread_configs_size =
+      thread_m_blocks > 1
+          ? sizeof(large_batch_thread_configs) / sizeof(thread_config_t)
+          : sizeof(small_batch_thread_configs) / sizeof(thread_config_t);
+
+  int count = 0;
+  constexpr int device_max_reg_size = 255 * 1024;
+  for (int i = 0; i < thread_configs_size; i++) {
+    thread_config_t th_config = thread_configs[i];
+
+    if (!is_valid_config(th_config, thread_m_blocks, prob_m, prob_n, prob_k,
+                         num_bits, group_size, has_act_order, is_k_full, has_zp,
+                         is_zp_float, max_shared_mem)) {
+      continue;
+    }
+
+    int cache_size = get_kernel_cache_size(
+        th_config, thread_m_blocks, prob_m, prob_n, prob_k, num_bits,
+        group_size, has_act_order, is_k_full, has_zp, is_zp_float);
+
+    int group_blocks = 0;
+    if (!has_act_order) {
+      group_blocks = group_size == -1 ? -1 : group_size / 16;
+    }
+
+    auto kernel = get_marlin_kernel<scalar_t>(
+        q_type, thread_m_blocks, th_config.thread_n / 16,
+        th_config.thread_k / 16, m_block_size_8, has_act_order, has_zp,
+        group_blocks, th_config.num_threads, is_zp_float);
+
+    if (kernel == MarlinDefault) continue;
+
+    if (thread_m_blocks > 1) {
+      exec_cfg = {1, th_config};
+      break;
+    } else {
+      cudaFuncAttributes attr;
+      cudaFuncGetAttributes(&attr, kernel);
+      int reg_size = max(attr.numRegs, 1) * th_config.num_threads * 4;
+      int allow_count = min(device_max_reg_size / reg_size,
+                            max_shared_mem / (cache_size + 1024));
+      allow_count = max(min(allow_count, 4), 1);
+      if (allow_count > count) {
+        count = allow_count;
+        exec_cfg = {count, th_config};
+      };
+    }
+  }
+
+  return exec_cfg;
+}
+
+template <typename scalar_t>
+void marlin_mm(const void* A, const void* B, void* C, void* C_tmp, void* s,
+               void* zp, void* g_idx, void* perm, void* a_tmp,
+               void* sorted_token_ids, void* expert_ids,
+               void* num_tokens_past_padded, void* topk_weights,
+               int moe_block_size, int top_k, bool mul_topk_weights, bool is_ep,
+               int prob_m, int prob_n, int prob_k, void* workspace,
+               vllm::ScalarType const& q_type, bool has_act_order,
+               bool is_k_full, bool has_zp, int num_groups, int group_size,
+               int dev, cudaStream_t stream, int thread_k, int thread_n,
+               int sms, bool use_atomic_add, bool use_fp32_reduce,
+               bool is_zp_float) {
+  int thread_m_blocks = div_ceil(moe_block_size, 16);
+  bool m_block_size_8 = moe_block_size == 8;
+
+  if (has_zp) {
+    TORCH_CHECK(
+        q_type == vllm::kU4 || q_type == vllm::kU8,
+        "q_type must be u4 or u8 when has_zp = True. Got = ", q_type.str());
+  } else {
+    TORCH_CHECK(
+        q_type == vllm::kU4B8 || q_type == vllm::kU8B128,
+        "q_type must be uint4b8 or uint8b128 when has_zp = False. Got = ",
+        q_type.str());
+  }
+
+  TORCH_CHECK(prob_m > 0 && prob_n > 0 && prob_k > 0, "Invalid MNK = [", prob_m,
+              ", ", prob_n, ", ", prob_k, "]");
+
+  int group_blocks = 0;
+  if (has_act_order) {
+    if (is_k_full) {
+      TORCH_CHECK(group_size != -1);
+      group_blocks = group_size / 16;
+      TORCH_CHECK(prob_k % group_blocks == 0, "prob_k = ", prob_k,
+                  " is not divisible by group_blocks = ", group_blocks);
+    } else {
+      TORCH_CHECK(group_size == 0);
+      group_blocks = 0;
+    }
+  } else {
+    if (group_size == -1) {
+      group_blocks = -1;
+    } else {
+      group_blocks = group_size / 16;
+      TORCH_CHECK(prob_k % group_blocks == 0, "prob_k = ", prob_k,
+                  " is not divisible by group_blocks = ", group_blocks);
+    }
+  }
+
+  int num_bits = q_type.size_bits();
+  const int4* A_ptr = (const int4*)A;
+  const int4* B_ptr = (const int4*)B;
+  int4* C_ptr = (int4*)C;
+  int4* C_tmp_ptr = (int4*)C_tmp;
+  const int4* s_ptr = (const int4*)s;
+  const int4* zp_ptr = (const int4*)zp;
+  const int* g_idx_ptr = (const int*)g_idx;
+  const int* perm_ptr = (const int*)perm;
+  int4* a_tmp_ptr = (int4*)a_tmp;
+  const int32_t* sorted_token_ids_ptr = (const int32_t*)sorted_token_ids;
+  const int32_t* expert_ids_ptr = (const int32_t*)expert_ids;
+  const int32_t* num_tokens_past_padded_ptr =
+      (const int32_t*)num_tokens_past_padded;
+  const float* topk_weights_ptr = (const float*)topk_weights;
+  int* locks = (int*)workspace;
+
+  if (has_act_order) {
+    // Permute A columns
+    auto kernel = permute_cols_kernel<8>;
+    if (moe_block_size == 8) {
+    } else if (moe_block_size == 16)
+      kernel = permute_cols_kernel<16>;
+    else if (moe_block_size == 32)
+      kernel = permute_cols_kernel<32>;
+    else if (moe_block_size == 48)
+      kernel = permute_cols_kernel<48>;
+    else if (moe_block_size == 64)
+      kernel = permute_cols_kernel<64>;
+    else
+      TORCH_CHECK(false, "unsupported moe_block_size ", moe_block_size);
+
+    // avoid ">>>" being formatted to "> > >"
+    // clang-format off
+    kernel<<<sms, default_threads, 0, stream>>>(
+        A_ptr, perm_ptr, a_tmp_ptr, sorted_token_ids_ptr, expert_ids_ptr,
+        num_tokens_past_padded_ptr, prob_m, prob_k, top_k);
+    // clang-format on
+    A_ptr = a_tmp_ptr;
+    prob_m = prob_m * top_k;
+    top_k = 1;
+
+    // If we have a full K, then we can run the non-act-order version of Marlin
+    // (since the weight rows are reordered by increasing group ids, and by
+    // having a full K, we have full original groups)
+    if (is_k_full) has_act_order = false;
+  }
+
+  int max_shared_mem = 0;
+  cudaDeviceGetAttribute(&max_shared_mem,
+                         cudaDevAttrMaxSharedMemoryPerBlockOptin, dev);
+  TORCH_CHECK(max_shared_mem > 0);
+
+  // Set thread config
+  exec_config_t exec_cfg;
+  thread_config_t thread_tfg;
+  if (thread_k != -1 && thread_n != -1) {
+    thread_tfg = thread_config_t{thread_k, thread_n, default_threads};
+    exec_cfg = exec_config_t{1, thread_tfg};
+    TORCH_CHECK(prob_n % thread_n == 0, "prob_n = ", prob_n,
+                " is not divisible by thread_n = ", thread_n);
+    TORCH_CHECK(prob_k % thread_k == 0, "prob_k = ", prob_k,
+                " is not divisible by thread_k = ", thread_k);
+  } else {
+    // Auto config
+    exec_cfg = determine_exec_config<scalar_t>(
+        q_type, prob_m, prob_n, prob_k, thread_m_blocks, m_block_size_8,
+        num_bits, group_size, has_act_order, is_k_full, has_zp, is_zp_float,
+        max_shared_mem);
+    thread_tfg = exec_cfg.tb_cfg;
+  }
+
+  int num_threads = thread_tfg.num_threads;
+  thread_k = thread_tfg.thread_k;
+  thread_n = thread_tfg.thread_n;
+  int blocks = sms * exec_cfg.blocks_per_sm;
+  if (exec_cfg.blocks_per_sm > 1)
+    max_shared_mem = max_shared_mem / exec_cfg.blocks_per_sm - 1024;
+
+  int thread_k_blocks = thread_k / 16;
+  int thread_n_blocks = thread_n / 16;
+
+  TORCH_CHECK(is_valid_config(thread_tfg, thread_m_blocks, prob_m, prob_n,
+                              prob_k, num_bits, group_size, has_act_order,
+                              is_k_full, has_zp, is_zp_float, max_shared_mem),
+              "Invalid thread config: thread_m_blocks = ", thread_m_blocks,
+              ", thread_k = ", thread_tfg.thread_k,
+              ", thread_n = ", thread_tfg.thread_n,
+              ", num_threads = ", thread_tfg.num_threads, " for MKN = [",
+              prob_m, ", ", prob_k, ", ", prob_n, "] and num_bits = ", num_bits,
+              ", group_size = ", group_size,
+              ", has_act_order = ", has_act_order, ", is_k_full = ", is_k_full,
+              ", has_zp = ", has_zp, ", is_zp_float = ", is_zp_float,
+              ", max_shared_mem = ", max_shared_mem);
+
+  auto kernel = get_marlin_kernel<scalar_t>(
+      q_type, thread_m_blocks, thread_n_blocks, thread_k_blocks, m_block_size_8,
+      has_act_order, has_zp, group_blocks, num_threads, is_zp_float);
+
+  if (kernel == MarlinDefault) {
+    TORCH_CHECK(false, "Unsupported shapes: MNK = [", prob_m, ", ", prob_n,
+                ", ", prob_k, "]", ", has_act_order = ", has_act_order,
+                ", num_groups = ", num_groups, ", group_size = ", group_size,
+                ", thread_m_blocks = ", thread_m_blocks,
+                ", thread_n_blocks = ", thread_n_blocks,
+                ", thread_k_blocks = ", thread_k_blocks,
+                ", num_bits = ", num_bits);
+  }
+
+  cudaFuncSetAttribute(kernel, cudaFuncAttributeMaxDynamicSharedMemorySize,
+                       max_shared_mem);
+  // avoid ">>>" being formatted to "> > >"
+  // clang-format off
+  kernel<<<blocks, num_threads, max_shared_mem, stream>>>(
+      A_ptr, B_ptr, C_ptr, C_tmp_ptr, s_ptr, zp_ptr, g_idx_ptr,
+      sorted_token_ids_ptr, expert_ids_ptr, num_tokens_past_padded_ptr,
+      topk_weights_ptr, top_k, mul_topk_weights, is_ep, num_groups, prob_m,
+      prob_n, prob_k, locks, use_atomic_add, use_fp32_reduce);
+  // clang-format on
+}
+
+}  // namespace MARLIN_NAMESPACE_NAME
+
+torch::Tensor moe_wna16_marlin_gemm(
+    torch::Tensor& a, std::optional<torch::Tensor> const& c_or_none,
+    torch::Tensor& b_q_weight, torch::Tensor& b_scales,
+    std::optional<torch::Tensor> const& b_zeros_or_none,
+    std::optional<torch::Tensor> const& g_idx_or_none,
+    std::optional<torch::Tensor> const& perm_or_none, torch::Tensor& workspace,
+    torch::Tensor& sorted_token_ids, torch::Tensor& expert_ids,
+    torch::Tensor& num_tokens_past_padded, torch::Tensor& topk_weights,
+    int64_t moe_block_size, int64_t top_k, bool mul_topk_weights, bool is_ep,
+    vllm::ScalarTypeId const& b_q_type_id, int64_t size_m, int64_t size_n,
+    int64_t size_k, bool is_k_full, bool use_atomic_add, bool use_fp32_reduce,
+    bool is_zp_float) {
+  vllm::ScalarType const b_q_type = vllm::ScalarType::from_id(b_q_type_id);
+  int pack_factor = 32 / b_q_type.size_bits();
+
+  if (moe_block_size != 8) {
+    TORCH_CHECK(moe_block_size % 16 == 0,
+                "unsupported moe_block_size=", moe_block_size);
+    TORCH_CHECK(moe_block_size >= 16 && moe_block_size <= 64,
+                "unsupported moe_block_size=", moe_block_size);
+  }
+
+  // Verify A
+  TORCH_CHECK(a.size(0) == size_m, "Shape mismatch: a.size(0) = ", a.size(0),
+              ", size_m = ", size_m);
+  TORCH_CHECK(a.size(1) == size_k, "Shape mismatch: a.size(1) = ", a.size(1),
+              ", size_k = ", size_k);
+
+  // Verify B
+  TORCH_CHECK(
+      size_k % MARLIN_NAMESPACE_NAME::tile_size == 0, "size_k = ", size_k,
+      " is not divisible by tile_size = ", MARLIN_NAMESPACE_NAME::tile_size);
+  TORCH_CHECK((size_k / MARLIN_NAMESPACE_NAME::tile_size) == b_q_weight.size(1),
+              "Shape mismatch: b_q_weight.size(1) = ", b_q_weight.size(1),
+              ", size_k = ", size_k,
+              ", tile_size = ", MARLIN_NAMESPACE_NAME::tile_size);
+  TORCH_CHECK(
+      b_q_weight.size(2) % MARLIN_NAMESPACE_NAME::tile_size == 0,
+      "b_q_weight.size(2) = ", b_q_weight.size(2),
+      " is not divisible by tile_size = ", MARLIN_NAMESPACE_NAME::tile_size);
+  int actual_size_n =
+      (b_q_weight.size(2) / MARLIN_NAMESPACE_NAME::tile_size) * pack_factor;
+  TORCH_CHECK(size_n == actual_size_n, "size_n = ", size_n,
+              ", actual_size_n = ", actual_size_n);
+
+  // Verify device and strides
+  TORCH_CHECK(a.device().is_cuda(), "A is not on GPU");
+  TORCH_CHECK(a.is_contiguous(), "A is not contiguous");
+
+  TORCH_CHECK(b_q_weight.device().is_cuda(), "b_q_weight is not on GPU");
+  TORCH_CHECK(b_q_weight.is_contiguous(), "b_q_weight is not contiguous");
+
+  TORCH_CHECK(b_scales.device().is_cuda(), "b_scales is not on GPU");
+  TORCH_CHECK(b_scales.is_contiguous(), "b_scales is not contiguous");
+
+  // thread_k: `k` size of a thread_tile in `weights` (can usually be left as
+  // auto -1)
+  int thread_k = -1;
+  // thread_n: `n` size of a thread_tile in `weights` (can usually be left as
+  // auto -1)
+  int thread_n = -1;
+  // sms: number of SMs to use for the kernel
+  int sms = -1;
+  cudaDeviceGetAttribute(&sms, cudaDevAttrMultiProcessorCount, a.get_device());
+
+  // Alloc buffers
+  const at::cuda::OptionalCUDAGuard device_guard(device_of(a));
+  auto options = torch::TensorOptions().dtype(a.dtype()).device(a.device());
+  torch::Tensor c;
+  if (c_or_none.has_value()) {
+    c = c_or_none.value();
+    TORCH_CHECK(c.device().is_cuda(), "c is not on GPU");
+    TORCH_CHECK(c.is_contiguous(), "c is not contiguous");
+    TORCH_CHECK(c.size(0) == size_m * top_k,
+                "Shape mismatch: c.size(0) = ", c.size(0),
+                ", size_m * topk = ", size_m * top_k);
+    TORCH_CHECK(c.size(1) == size_n, "Shape mismatch: c.size(1) = ", c.size(1),
+                ", size_n = ", size_n);
+  } else {
+    c = torch::empty({size_m * top_k, size_n}, options);
+  }
+
+  // Alloc C tmp buffer that is going to be used for the global reduce
+  torch::Tensor c_tmp;
+  auto options_fp32 =
+      torch::TensorOptions().dtype(at::kFloat).device(a.device());
+  if (use_fp32_reduce && !use_atomic_add) {
+    // max num of threadblocks is sms * 4
+    long max_c_tmp_size = min(
+        (long)size_n * sorted_token_ids.size(0),
+        (long)sms * 4 * moe_block_size * MARLIN_NAMESPACE_NAME::max_thread_n);
+    if (moe_block_size == 8) max_c_tmp_size *= 2;
+    c_tmp = torch::empty({max_c_tmp_size}, options_fp32);
+  } else {
+    c_tmp = torch::empty({0}, options_fp32);
+  }
+
+  // Detect groupsize and act_order
+  int num_groups = -1;
+  int group_size = -1;
+
+  int rank = b_scales.sizes().size();
+  TORCH_CHECK(rank == 3, "b_scales rank = ", rank, " is not 3");
+  TORCH_CHECK(b_scales.size(2) == size_n, "b_scales dim 2 = ", b_scales.size(2),
+              " is not size_n = ", size_n);
+  num_groups = b_scales.size(1);
+
+  torch::Tensor g_idx, perm, a_tmp;
+  ;
+  if (g_idx_or_none.has_value() && perm_or_none.has_value()) {
+    g_idx = g_idx_or_none.value();
+    perm = perm_or_none.value();
+
+    TORCH_CHECK(g_idx.device().is_cuda(), "g_idx is not on GPU");
+    TORCH_CHECK(g_idx.is_contiguous(), "g_idx is not contiguous");
+    TORCH_CHECK(perm.device().is_cuda(), "perm is not on GPU");
+    TORCH_CHECK(perm.is_contiguous(), "perm is not contiguous");
+
+    // Verify g_idx and perm
+    TORCH_CHECK((g_idx.size(-1) == 0 && perm.size(-1) == 0) ||
+                    (g_idx.size(-1) == size_k && perm.size(-1) == size_k),
+                "Unexpected g_idx.size(-1) = ", g_idx.size(-1),
+                " and perm.size(-1) = ", perm.size(-1),
+                ", where size_k = ", size_k);
+  } else {
+    g_idx = torch::empty({0}, options);
+    perm = torch::empty({0}, options);
+    a_tmp = torch::empty({0}, options);
+  }
+  bool has_act_order = g_idx.size(-1) > 0 && perm.size(-1) > 0;
+
+  if (has_act_order) {
+    a_tmp = torch::empty({size_m * top_k, size_k}, options);
+    if (is_k_full) {
+      TORCH_CHECK(num_groups > 1, "For act_order, num_groups must be > 1");
+      TORCH_CHECK(size_k % num_groups == 0, "size_k = ", size_k,
+                  ", is not divisible by num_groups = ", num_groups);
+      group_size = size_k / num_groups;
+    } else {
+      group_size = 0;
+    }
+
+  } else {
+    a_tmp = torch::empty({0}, options);
+    if (num_groups > 1) {
+      TORCH_CHECK(
+          size_k % num_groups == 0, "size_k = ", size_k,
+          ", is not divisible by b_scales.size(1) = ", b_scales.size(1));
+      group_size = size_k / num_groups;
+    } else {
+      group_size = -1;
+    }
+  }
+
+  torch::Tensor b_zeros;
+  if (b_zeros_or_none.has_value()) {
+    b_zeros = b_zeros_or_none.value();
+    TORCH_CHECK(b_zeros.device().is_cuda(), "b_zeros is not on GPU");
+    TORCH_CHECK(b_zeros.is_contiguous(), "b_zeros is not contiguous");
+  } else {
+    b_zeros = torch::empty({0}, options);
+  }
+  bool has_zp = b_zeros.size(-1) > 0;
+
+  if (has_zp) {
+    TORCH_CHECK(
+        b_q_type == vllm::kU4,
+        "b_q_type must be u4 when has_zp = True. Got = ", b_q_type.str());
+  } else {
+    TORCH_CHECK(
+        b_q_type == vllm::kU4B8 || b_q_type == vllm::kU8B128,
+        "b_q_type must be uint4b8 or uint8b128 when has_zp = False. Got = ",
+        b_q_type.str());
+  }
+
+  if (has_zp && is_zp_float) {
+    TORCH_CHECK(a.scalar_type() == at::ScalarType::Half,
+                "Computation type must be float16 (half) when using float zero "
+                "points.");
+  }
+
+  // Verify b_zeros
+  if (has_zp) {
+    int rank = b_zeros.sizes().size();
+    TORCH_CHECK(rank == 3, "b_zeros rank = ", rank, " is not 3");
+    if (is_zp_float) {
+      TORCH_CHECK(b_zeros.size(2) == size_n,
+                  "b_zeros dim 2 = ", b_zeros.size(2),
+                  " is not size_n = ", size_n);
+      TORCH_CHECK(num_groups == b_zeros.size(1),
+                  "b_zeros dim 1 = ", b_zeros.size(1),
+                  " is not num_groups = ", num_groups);
+      TORCH_CHECK(num_groups != -1, "num_groups must be != -1");
+    } else {
+      TORCH_CHECK(b_zeros.size(1) == num_groups,
+                  "b_zeros dim 1 = ", b_zeros.size(1),
+                  " is not num_groups = ", num_groups);
+      TORCH_CHECK(b_zeros.size(2) == size_n / pack_factor,
+                  "b_zeros dim 2 = ", b_zeros.size(2),
+                  " is not size_n / pack_factor = ", size_n / pack_factor);
+    }
+  }
+
+  // Verify workspace size
+  TORCH_CHECK(size_n % MARLIN_NAMESPACE_NAME::min_thread_n == 0,
+              "size_n = ", size_n, ", is not divisible by min_thread_n = ",
+              MARLIN_NAMESPACE_NAME::min_thread_n);
+
+  int max_n_tiles = size_n / MARLIN_NAMESPACE_NAME::min_thread_n;
+  int min_workspace_size = min(
+      max_n_tiles * (int)(sorted_token_ids.size(0) / moe_block_size), sms * 4);
+  TORCH_CHECK(workspace.numel() >= min_workspace_size,
+              "workspace.numel = ", workspace.numel(),
+              " is below min_workspace_size = ", min_workspace_size);
+
+  int dev = a.get_device();
+  if (a.scalar_type() == at::ScalarType::Half) {
+    MARLIN_NAMESPACE_NAME::marlin_mm<half>(
+        a.data_ptr<at::Half>(), b_q_weight.data_ptr(), c.data_ptr<at::Half>(),
+        c_tmp.data_ptr<float>(), b_scales.data_ptr<at::Half>(),
+        b_zeros.data_ptr(), g_idx.data_ptr(), perm.data_ptr(),
+        a_tmp.data_ptr<at::Half>(), sorted_token_ids.data_ptr(),
+        expert_ids.data_ptr(), num_tokens_past_padded.data_ptr(),
+        topk_weights.data_ptr(), moe_block_size, top_k, mul_topk_weights, is_ep,
+        size_m, size_n, size_k, workspace.data_ptr(), b_q_type, has_act_order,
+        is_k_full, has_zp, num_groups, group_size, dev,
+        at::cuda::getCurrentCUDAStream(dev), thread_k, thread_n, sms,
+        use_atomic_add, use_fp32_reduce, is_zp_float);
+  } else if (a.scalar_type() == at::ScalarType::BFloat16) {
+    MARLIN_NAMESPACE_NAME::marlin_mm<nv_bfloat16>(
+        a.data_ptr<at::BFloat16>(), b_q_weight.data_ptr(),
+        c.data_ptr<at::BFloat16>(), c_tmp.data_ptr<float>(),
+        b_scales.data_ptr<at::BFloat16>(), b_zeros.data_ptr(), g_idx.data_ptr(),
+        perm.data_ptr(), a_tmp.data_ptr<at::BFloat16>(),
+        sorted_token_ids.data_ptr(), expert_ids.data_ptr(),
+        num_tokens_past_padded.data_ptr(), topk_weights.data_ptr(),
+        moe_block_size, top_k, mul_topk_weights, is_ep, size_m, size_n, size_k,
+        workspace.data_ptr(), b_q_type, has_act_order, is_k_full, has_zp,
+        num_groups, group_size, dev, at::cuda::getCurrentCUDAStream(dev),
+        thread_k, thread_n, sms, use_atomic_add, use_fp32_reduce, is_zp_float);
+  } else {
+    TORCH_CHECK(false,
+                "moe_wna16_marlin_gemm only supports bfloat16 and float16");
+  }
+
+  return c;
+}
+
+#endif
+
+TORCH_LIBRARY_IMPL_EXPAND(TORCH_EXTENSION_NAME, CUDA, m) {
+  m.impl("moe_wna16_marlin_gemm", &moe_wna16_marlin_gemm);
+}

csrc/moe/moe_wna16.cu

@@ -13,7 +13,6 @@
 template <typename scalar_t, int bit, int GROUPS>
 __global__ void moe_wna16_gemm_kernel(
     const scalar_t* __restrict__ input, scalar_t* __restrict__ output,
-
     const uint32_t* __restrict__ qweight, const scalar_t* __restrict__ scales,
     const uint32_t* __restrict__ qzeros,
 
@@ -54,8 +53,6 @@ __global__ void moe_wna16_gemm_kernel(
       if (token_index / top_k >= size_m) break;
 
       num_valid_tokens = m + 1;
-      if (blockIdx.z == 0 && offset_n < size_n)
-        output[token_index * size_n + offset_n] = Dtype::int2num(0);
 
       if (expert_id != -1) {
         int k_per_thread = DIVIDE(BLOCK_SIZE_K, BLOCK_SIZE_N);
@@ -284,8 +281,7 @@ torch::Tensor moe_wna16_gemm(torch::Tensor input, torch::Tensor output,
                              int64_t BLOCK_SIZE_M, int64_t BLOCK_SIZE_N,
                              int64_t BLOCK_SIZE_K, int64_t bit) {
   const at::cuda::OptionalCUDAGuard device_guard(device_of(input));
-  auto options =
-      torch::TensorOptions().dtype(input.dtype()).device(input.device());
+  output.zero_();
 
   const int num_experts = b_qweight.size(0);
   const int size_m = input.size(0);
@@ -302,9 +298,9 @@ torch::Tensor moe_wna16_gemm(torch::Tensor input, torch::Tensor output,
   const uint32_t* b_qzeros_ptr;
   if (b_qzeros.has_value())
     b_qzeros_ptr = (const uint32_t*)b_qzeros.value().data_ptr<uint8_t>();
-  const float* topk_weights_ptr;
+  const float* topk_weights_ptr = nullptr;
   if (topk_weights.has_value())
-    topk_weights_ptr = (const float*)topk_weights.value().data_ptr();
+    topk_weights_ptr = (const float*)topk_weights.value().data_ptr<float>();
 
   int groups_per_block_row = BLOCK_SIZE_K / group_size;
   TORCH_CHECK(bit == 4 || bit == 8, "bit must be 4 or 8");

csrc/moe/torch_bindings.cpp

@@ -43,14 +43,17 @@ TORCH_LIBRARY_EXPAND(TORCH_EXTENSION_NAME, m) {
   m.impl("moe_wna16_gemm", torch::kCUDA, &moe_wna16_gemm);
 
   m.def(
-      "marlin_gemm_moe(Tensor! a, Tensor! b_q_weights, Tensor! sorted_ids, "
-      "Tensor! topk_weights, Tensor! topk_ids, Tensor! b_scales, Tensor! "
-      "b_zeros, Tensor! g_idx, Tensor! perm, Tensor! workspace, "
-      "int b_q_type, SymInt size_m, "
-      "SymInt size_n, SymInt size_k, bool is_k_full, int num_experts, int "
-      "topk, "
-      "int moe_block_size, bool replicate_input, bool apply_weights)"
-      " -> Tensor");
+      "moe_wna16_marlin_gemm(Tensor! a, Tensor? c_or_none,"
+      "Tensor! b_q_weight, Tensor! b_scales, Tensor? b_zeros_or_none,"
+      "Tensor? g_idx_or_none, Tensor? perm_or_none, Tensor! workspace,"
+      "Tensor sorted_token_ids,"
+      "Tensor! expert_ids, Tensor! num_tokens_past_padded,"
+      "Tensor! topk_weights, int moe_block_size, int top_k, "
+      "bool mul_topk_weights, bool is_ep, int b_q_type_id,"
+      "int size_m, int size_n, int size_k,"
+      "bool is_full_k, bool use_atomic_add,"
+      "bool use_fp32_reduce, bool is_zp_float) -> Tensor");
+
   // conditionally compiled so impl registration is in source file
 
 #endif

csrc/ops.h

@@ -52,6 +52,15 @@ void paged_attention_v2(
     const int64_t blocksparse_vert_stride, const int64_t blocksparse_block_size,
     const int64_t blocksparse_head_sliding_step);
 
+#ifndef USE_ROCM
+void merge_attn_states(torch::Tensor& output,
+                       std::optional<torch::Tensor> output_lse,
+                       const torch::Tensor& prefix_output,
+                       const torch::Tensor& prefix_lse,
+                       const torch::Tensor& suffix_output,
+                       const torch::Tensor& suffix_lse);
+#endif
+
 void rms_norm(torch::Tensor& out, torch::Tensor& input, torch::Tensor& weight,
               double epsilon);
 
@@ -119,6 +128,12 @@ void advance_step_flashinfer(
     torch::Tensor& paged_kv_indices, torch::Tensor& paged_kv_indptr,
     torch::Tensor& paged_kv_last_page_len, torch::Tensor& block_table_bounds);
 
+void cutlass_mla_decode(torch::Tensor const& out, torch::Tensor const& q_nope,
+                        torch::Tensor const& q_pe,
+                        torch::Tensor const& kv_c_and_k_pe_cache,
+                        torch::Tensor const& seq_lens,
+                        torch::Tensor const& page_table, double scale);
+
 torch::Tensor get_cuda_view_from_cpu_tensor(torch::Tensor& cpu_tensor);
 
 #ifndef USE_ROCM
@@ -145,7 +160,8 @@ torch::Tensor permute_cols(torch::Tensor const& A, torch::Tensor const& perm);
 #endif
 
 torch::Tensor ggml_dequantize(torch::Tensor W, int64_t type, int64_t m,
-                              int64_t n);
+                              int64_t n,
+                              std::optional<at::ScalarType> const& dtype);
 
 torch::Tensor ggml_mul_mat_vec_a8(torch::Tensor W, torch::Tensor X,
                                   int64_t type, int64_t row);
@@ -267,10 +283,10 @@ void causal_conv1d_fwd(const at::Tensor& x, const at::Tensor& weight,
                        const std::optional<at::Tensor>& has_initial_state,
                        bool silu_activation, int64_t pad_slot_id);
 
-#ifndef USE_ROCM
 using fptr_t = int64_t;
 fptr_t init_custom_ar(const std::vector<int64_t>& fake_ipc_ptrs,
-                      torch::Tensor& rank_data, int64_t rank, bool full_nvlink);
+                      torch::Tensor& rank_data, int64_t rank,
+                      bool fully_connected);
 void all_reduce(fptr_t _fa, torch::Tensor& inp, torch::Tensor& out,
                 fptr_t reg_buffer, int64_t reg_buffer_sz_bytes);
 void dispose(fptr_t _fa);
@@ -281,4 +297,7 @@ get_graph_buffer_ipc_meta(fptr_t _fa);
 void register_graph_buffers(fptr_t _fa,
                             const std::vector<std::vector<int64_t>>& handles,
                             const std::vector<std::vector<int64_t>>& offsets);
-#endif
+std::tuple<int64_t, torch::Tensor> allocate_shared_buffer_and_handle(
+    int64_t size);
+int64_t open_mem_handle(torch::Tensor& mem_handle);
+void free_shared_buffer(int64_t buffer);

csrc/quantization/cutlass_w8a8/moe/moe_data.cu

@@ -46,14 +46,26 @@ __global__ void compute_expert_offsets(
 }
 
 __global__ void compute_arg_sorts(const int* __restrict__ topk_ids,
+                                  const int32_t* __restrict__ expert_offsets,
                                   int32_t* input_permutation,
                                   int32_t* output_permutation,
                                   int32_t* atomic_buffer, const int topk_length,
                                   const int topk) {
-  int expert_id = blockIdx.x;
+  int const blk_expert_id = blockIdx.x;
+  int const num_experts = gridDim.x;
+  int32_t const num_tokens = expert_offsets[num_experts];
 
   for (int i = threadIdx.x; i < topk_length; i += THREADS_PER_EXPERT) {
-    if (topk_ids[i] == expert_id) {
+    int const expert_id = topk_ids[i];
+    if (expert_id == -1 && blockIdx.x == 0) {
+      // output_permutation is used to re-order the moe outputs. It is
+      // used as c2 = c2[c_map], where c2 is a torch.tensor that is the
+      // output of the cutlass kernels and c_map is the output_permutation.
+      // c2 is initialized to zeros, therefore by setting the output_permutation
+      // to num_tokens, we are guaranteed to fill the moe outputs to zero
+      // for "invalid" topk_ids.
+      output_permutation[i] = num_tokens;
+    } else if (expert_id == blk_expert_id) {
       int start = atomicAdd(&atomic_buffer[expert_id], 1);
       input_permutation[start] = i / topk;
       output_permutation[i] = start;
@@ -83,6 +95,7 @@ void get_cutlass_moe_mm_data_caller(
       static_cast<int32_t*>(atomic_buffer.data_ptr()), num_experts);
   compute_arg_sorts<<<num_experts, num_threads, 0, stream>>>(
       static_cast<const int32_t*>(topk_ids.data_ptr()),
+      static_cast<const int32_t*>(expert_offsets.data_ptr()),
       static_cast<int32_t*>(input_permutation.data_ptr()),
       static_cast<int32_t*>(output_permutation.data_ptr()),
       static_cast<int32_t*>(atomic_buffer.data_ptr()), topk_ids.numel(),

csrc/quantization/cutlass_w8a8/scaled_mm_c2x_sm89_fp8_dispatch.cuh

@@ -336,7 +336,7 @@ inline void cutlass_gemm_sm89_fp8_dispatch(torch::Tensor& out,
 
   uint32_t const m = a.size(0);
   uint32_t const mp2 =
-      std::max(static_cast<uint32_t>(32), next_pow_2(m));  // next power of 2
+      std::max(static_cast<uint32_t>(16), next_pow_2(m));  // next power of 2
 
   if (mp2 <= 16) {
     // M in [1, 16]

csrc/quantization/cutlass_w8a8/scaled_mm_c2x_sm89_int8_dispatch.cuh

@@ -321,7 +321,7 @@ inline void cutlass_gemm_sm89_int8_dispatch(torch::Tensor& out,
 
   uint32_t const m = a.size(0);
   uint32_t const mp2 =
-      std::max(static_cast<uint32_t>(32), next_pow_2(m));  // next power of 2
+      std::max(static_cast<uint32_t>(16), next_pow_2(m));  // next power of 2
 
   if (mp2 <= 16) {
     // M in [1, 16]

csrc/quantization/fp4/nvfp4_scaled_mm_kernels.cu

@@ -134,7 +134,7 @@ typename T::Gemm::Arguments args_from_options(
   using StrideB = typename T::StrideB;
   using StrideD = typename T::StrideD;
   using Sm100BlkScaledConfig =
-      typename T::Gemm::GemmKernel::CollectiveMainloop::Sm100BlkScaledConfig;
+      typename T::Gemm::GemmKernel::CollectiveMainloop::Sm1xxBlkScaledConfig;
 
   int m = static_cast<int>(M);
   int n = static_cast<int>(N);

csrc/quantization/gguf/dequantize.cuh

@@ -94,8 +94,8 @@ static __global__ void dequantize_block(const void * __restrict__ vx, dst_t * __
     dfloat2 v;
     dequantize_kernel(vx, ib, iqs, v);
 
-    y[iybs + iqs + 0]        = v.x;
-    y[iybs + iqs + y_offset] = v.y;
+    y[iybs + iqs + 0]        = convert_from_half<dst_t>(v.x);
+    y[iybs + iqs + y_offset] = convert_from_half<dst_t>(v.y);
 }
 
 template<typename dst_t>
@@ -114,10 +114,10 @@ static __global__ void dequantize_block_q2_K(const void * __restrict__ vx, dst_t
 
     half dall = __low2half(x[i].dm);
     half dmin = __high2half(x[i].dm);
-    y[l+ 0] = __hsub(__hmul(dall, __int2half_rn((x[i].scales[is+0] & 0xF) * ((q >> 0) & 3))), __hmul(dmin,  __int2half_rn(x[i].scales[is+0] >> 4)));
-    y[l+32] = __hsub(__hmul(dall, __int2half_rn((x[i].scales[is+2] & 0xF) * ((q >> 2) & 3))), __hmul(dmin,  __int2half_rn(x[i].scales[is+2] >> 4)));
-    y[l+64] = __hsub(__hmul(dall, __int2half_rn((x[i].scales[is+4] & 0xF) * ((q >> 4) & 3))), __hmul(dmin,  __int2half_rn(x[i].scales[is+4] >> 4)));
-    y[l+96] = __hsub(__hmul(dall, __int2half_rn((x[i].scales[is+6] & 0xF) * ((q >> 6) & 3))), __hmul(dmin,  __int2half_rn(x[i].scales[is+6] >> 4)));
+    y[l+ 0] = convert_from_half<dst_t>(__hsub(__hmul(dall, __int2half_rn((x[i].scales[is+0] & 0xF) * ((q >> 0) & 3))), __hmul(dmin,  __int2half_rn(x[i].scales[is+0] >> 4))));
+    y[l+32] = convert_from_half<dst_t>(__hsub(__hmul(dall, __int2half_rn((x[i].scales[is+2] & 0xF) * ((q >> 2) & 3))), __hmul(dmin,  __int2half_rn(x[i].scales[is+2] >> 4))));
+    y[l+64] = convert_from_half<dst_t>(__hsub(__hmul(dall, __int2half_rn((x[i].scales[is+4] & 0xF) * ((q >> 4) & 3))), __hmul(dmin,  __int2half_rn(x[i].scales[is+4] >> 4))));
+    y[l+96] = convert_from_half<dst_t>(__hsub(__hmul(dall, __int2half_rn((x[i].scales[is+6] & 0xF) * ((q >> 6) & 3))), __hmul(dmin,  __int2half_rn(x[i].scales[is+6] >> 4))));
 }
 
 template<typename dst_t>
@@ -148,7 +148,9 @@ static __global__ void dequantize_block_q3_K(const void * __restrict__ vx, dst_t
     const uint8_t * q = x[i].qs + 32*n;
     const uint8_t * hm = x[i].hmask;
 
-    for (int l = l0; l < l0+4; ++l) y[l] = __hmul(dl,  __int2half_rn((int8_t)((q[l] >> shift) & 3) - ((hm[l] & m) ? 0 : 4)));
+    for (int l = l0; l < l0+4; ++l) {
+        y[l] = convert_from_half<dst_t>(__hmul(dl,  __int2half_rn((int8_t)((q[l] >> shift) & 3) - ((hm[l] & m) ? 0 : 4))));
+    }
 }
 
 static inline __device__ void get_scale_min_k4(int j, const uint8_t * q, uint8_t & d, uint8_t & m) {
@@ -188,8 +190,8 @@ static __global__ void dequantize_block_q4_K(const void * __restrict__ vx, dst_t
     const half d2 = __hmul(dall, __int2half_rn(sc));
     const half m2 = __hmul(dmin, __int2half_rn(m));
     for (int l = 0; l < n; ++l) {
-        y[l + 0] = __hsub(__hmul(d1, __int2half_rn(q[l] & 0xF)), m1);
-        y[l +32] = __hsub(__hmul(d2,  __int2half_rn(q[l] >> 4)), m2);
+        y[l + 0] = convert_from_half<dst_t>(__hsub(__hmul(d1, __int2half_rn(q[l] & 0xF)), m1));
+        y[l +32] = convert_from_half<dst_t>(__hsub(__hmul(d2,  __int2half_rn(q[l] >> 4)), m2));
     }
 }
 
@@ -220,11 +222,11 @@ static __global__ void dequantize_block_q5_K(const void * __restrict__ vx, dst_t
     const half d2 = __hmul(dall, __int2half_rn(sc)); const half m2 = __hmul(dmin, __int2half_rn(m));
 
     uint8_t   hm  = 1 << (2*il);
-    y[ 0] = __hsub(__hmul(d1, __int2half_rn((ql[0] & 0xF) + (qh[0] & hm ? 16 : 0))), m1);
-    y[ 1] = __hsub(__hmul(d1, __int2half_rn((ql[1] & 0xF) + (qh[1] & hm ? 16 : 0))), m1);
+    y[ 0] = convert_from_half<dst_t>(__hsub(__hmul(d1, __int2half_rn((ql[0] & 0xF) + (qh[0] & hm ? 16 : 0))), m1));
+    y[ 1] = convert_from_half<dst_t>(__hsub(__hmul(d1, __int2half_rn((ql[1] & 0xF) + (qh[1] & hm ? 16 : 0))), m1));
     hm <<= 1;
-    y[32] = __hsub(__hmul(d2, __int2half_rn((ql[0] >>  4) + (qh[0] & hm ? 16 : 0))), m2);
-    y[33] = __hsub(__hmul(d2, __int2half_rn((ql[1] >>  4) + (qh[1] & hm ? 16 : 0))), m2);
+    y[32] = convert_from_half<dst_t>(__hsub(__hmul(d2, __int2half_rn((ql[0] >>  4) + (qh[0] & hm ? 16 : 0))), m2));
+    y[33] = convert_from_half<dst_t>(__hsub(__hmul(d2, __int2half_rn((ql[1] >>  4) + (qh[1] & hm ? 16 : 0))), m2));
 }
 
 template<typename dst_t>
@@ -247,10 +249,10 @@ static __global__ void dequantize_block_q6_K(const void * __restrict__ vx, dst_t
     const uint8_t   qh = x[i].qh[32*ip + il];
     const int8_t  * sc = x[i].scales + is;
 
-    y[ 0] = __hmul(d, __int2half_rn(sc[0] * ((int8_t)((ql[ 0] & 0xF) | (((qh >> 0) & 3) << 4)) - 32)));
-    y[32] = __hmul(d, __int2half_rn(sc[2] * ((int8_t)((ql[32] & 0xF) | (((qh >> 2) & 3) << 4)) - 32)));
-    y[64] = __hmul(d, __int2half_rn(sc[4] * ((int8_t)((ql[ 0]  >> 4) | (((qh >> 4) & 3) << 4)) - 32)));
-    y[96] = __hmul(d, __int2half_rn(sc[6] * ((int8_t)((ql[32]  >> 4) | (((qh >> 6) & 3) << 4)) - 32)));
+    y[ 0] = convert_from_half<dst_t>(__hmul(d, __int2half_rn(sc[0] * ((int8_t)((ql[ 0] & 0xF) | (((qh >> 0) & 3) << 4)) - 32))));
+    y[32] = convert_from_half<dst_t>(__hmul(d, __int2half_rn(sc[2] * ((int8_t)((ql[32] & 0xF) | (((qh >> 2) & 3) << 4)) - 32))));
+    y[64] = convert_from_half<dst_t>(__hmul(d, __int2half_rn(sc[4] * ((int8_t)((ql[ 0]  >> 4) | (((qh >> 4) & 3) << 4)) - 32))));
+    y[96] = convert_from_half<dst_t>(__hmul(d, __int2half_rn(sc[6] * ((int8_t)((ql[32]  >> 4) | (((qh >> 6) & 3) << 4)) - 32))));
 }
 
 template<typename dst_t>
@@ -269,7 +271,7 @@ static __global__ void dequantize_block_iq2_xxs(const void * __restrict__ vx, ds
     const uint32_t aux32 = q2[2] | (q2[3] << 16);
     const float d = __half2float(x[i].d) * (0.5f + (aux32 >> 28)) * 0.25f;
     const uint8_t signs = ksigns_iq2xs[(aux32 >> 7*il) & 127];
-    for (int j = 0; j < 8; ++j) y[j] = __float2half(d * grid[j] * (signs & kmask_iq2xs[j] ? -1.f : 1.f));
+    for (int j = 0; j < 8; ++j) y[j] = d * grid[j] * (signs & kmask_iq2xs[j] ? -1.f : 1.f);
 }
 
 template<typename dst_t>
@@ -286,7 +288,7 @@ static __global__ void dequantize_block_iq2_xs(const void * __restrict__ vx, dst
     const uint8_t  * grid = (const uint8_t *)(iq2xs_grid + (q2[il] & 511));
     const float d = __half2float(x[i].d) * (0.5f + ((x[i].scales[ib] >> 4*(il/2)) & 0xf)) * 0.25f;
     const uint8_t signs = ksigns_iq2xs[q2[il] >> 9];
-    for (int j = 0; j < 8; ++j) y[j] = __float2half(d * grid[j] * (signs & kmask_iq2xs[j] ? -1.f : 1.f));
+    for (int j = 0; j < 8; ++j) y[j] = d * grid[j] * (signs & kmask_iq2xs[j] ? -1.f : 1.f);
 
 }
 
@@ -303,7 +305,7 @@ static __global__ void dequantize_block_iq2_s(const void * __restrict__ vx, dst_
     const uint8_t * grid = (const uint8_t *)(iq2s_grid + (x[i].qs[4*ib+il] | ((x[i].qh[ib] << (8-2*il)) & 0x300)));
     const float d = __half2float(x[i].d) * (0.5f + ((x[i].scales[ib] >> 4*(il/2)) & 0xf)) * 0.25f;
     const uint8_t signs = x[i].qs[QK_K/8+4*ib+il];
-    for (int j = 0; j < 8; ++j) y[j] = __float2half(d * grid[j] * (signs & kmask_iq2xs[j] ? -1.f : 1.f));
+    for (int j = 0; j < 8; ++j) y[j] = d * grid[j] * (signs & kmask_iq2xs[j] ? -1.f : 1.f);
 }
 
 template<typename dst_t>
@@ -324,8 +326,8 @@ static __global__ void dequantize_block_iq3_xxs(const void * __restrict__ vx, ds
     const float d = __half2float(x[i].d) * (0.5f + (aux32 >> 28)) * 0.5f;
     const uint8_t signs = ksigns_iq2xs[(aux32 >> 7*il) & 127];
     for (int j = 0; j < 4; ++j) {
-        y[j+0] = __float2half(d * grid1[j] * (signs & kmask_iq2xs[j+0] ? -1.f : 1.f));
-        y[j+4] = __float2half(d * grid2[j] * (signs & kmask_iq2xs[j+4] ? -1.f : 1.f));
+        y[j+0] = d * grid1[j] * (signs & kmask_iq2xs[j+0] ? -1.f : 1.f);
+        y[j+4] = d * grid2[j] * (signs & kmask_iq2xs[j+4] ? -1.f : 1.f);
     }
 }
 
@@ -345,8 +347,8 @@ static __global__ void dequantize_block_iq3_s(const void * __restrict__ vx, dst_
     const float d = __half2float(x[i].d) * (0.5f + ((x[i].scales[ib/2] >> 4*(ib%2)) & 0xf)) * 0.5f;
     const uint8_t signs = x[i].signs[4*ib + il];
     for (int j = 0; j < 4; ++j) {
-        y[j+0] = __float2half(d * grid1[j] * (signs & kmask_iq2xs[j+0] ? -1.f : 1.f));
-        y[j+4] = __float2half(d * grid2[j] * (signs & kmask_iq2xs[j+4] ? -1.f : 1.f));
+        y[j+0] = d * grid1[j] * (signs & kmask_iq2xs[j+0] ? -1.f : 1.f);
+        y[j+4] = d * grid2[j] * (signs & kmask_iq2xs[j+4] ? -1.f : 1.f);
     }
 }
 
@@ -367,7 +369,7 @@ static __global__ void dequantize_block_iq1_s(const void * __restrict__ vx, dst_
     grid32[1] = (grid32[0] >> 4) & 0x0f0f0f0f;
     grid32[0] &= 0x0f0f0f0f;
     for (int j = 0; j < 8; ++j) {
-        y[j] = __float2half(d * (q[j] + delta));
+        y[j] = d * (q[j] + delta);
     }
 }
 
@@ -392,7 +394,7 @@ static __global__ void dequantize_block_iq1_m(const void * __restrict__ vx, dst_
     grid32[1] = (grid32[0] >> 4) & 0x0f0f0f0f;
     grid32[0] &= 0x0f0f0f0f;
     for (int j = 0; j < 8; ++j) {
-        y[j] = __float2half(d * (q[j] + delta));
+        y[j] = d * (q[j] + delta);
     }
 }
 
@@ -409,8 +411,8 @@ static __global__ void dequantize_block_iq4_nl(const void * __restrict__ vx, dst
     const uint8_t  * q4 = x[ib].qs + 4*il;
     const float d = __half2float(x[ib].d);
     for (int j = 0; j < 4; ++j) {
-        y[j+ 0] = __float2half(d * kvalues_iq4nl[q4[j] & 0xf]);
-        y[j+16] = __float2half(d * kvalues_iq4nl[q4[j] >>  4]);
+        y[j+ 0] = d * kvalues_iq4nl[q4[j] & 0xf];
+        y[j+16] = d * kvalues_iq4nl[q4[j] >>  4];
     }
 
 }
@@ -427,8 +429,8 @@ static __global__ void dequantize_block_iq4_xs(const void * __restrict__ vx, dst
     const uint8_t  * q4 = x[i].qs + 16*ib + 4*il;
     const float d = __half2float(x[i].d) * ((((x[i].scales_l[ib/2] >> 4*(ib%2)) & 0xf) | (((x[i].scales_h >> 2*ib) & 3) << 4)) - 32);
     for (int j = 0; j < 4; ++j) {
-        y[j+ 0] = __float2half(d * kvalues_iq4nl[q4[j] & 0xf]);
-        y[j+16] = __float2half(d * kvalues_iq4nl[q4[j] >>  4]);
+        y[j+ 0] = d * kvalues_iq4nl[q4[j] & 0xf];
+        y[j+16] = d * kvalues_iq4nl[q4[j] >>  4];
     }
 }
 
@@ -522,7 +524,8 @@ static void dequantize_row_iq4_xs_cuda(const void * vx, dst_t * y, const int k,
     dequantize_block_iq4_xs<<<nb, 32, 0, stream>>>(vx, y);
 }
 
-static to_fp16_cuda_t ggml_get_to_fp16_cuda(int64_t type) {
+template<typename dst_t>
+static to_cuda_ggml_t<dst_t> ggml_get_to_cuda(int64_t type) {
     switch (type) {
         case 2:
             return dequantize_block_cuda<QK4_0, QR4_0, dequantize_q4_0>;

csrc/quantization/gguf/ggml-common.h

@@ -1063,7 +1063,8 @@ static const __device__ int8_t kvalues_iq4nl[16] = {-127, -104, -83, -65, -49, -
 typedef half dfloat; // dequantize float
 typedef half2 dfloat2;
 typedef void (*dequantize_kernel_t)(const void * vx, const int ib, const int iqs, dfloat2 & v);
-typedef void (*to_fp16_cuda_t)(const void * __restrict__ x, dfloat * __restrict__ y, int k, cudaStream_t stream);
+template<typename dst_t>
+using to_cuda_ggml_t = void (*)(const void * __restrict__ x, dst_t * __restrict__ y, int k, cudaStream_t stream);
 typedef float (*vec_dot_q_cuda_t)(const void * __restrict__ vbq, const block_q8_1 * __restrict__ bq8_1, const int & iqs);
 typedef void (*allocate_tiles_cuda_t)(int ** x_ql, half2 ** x_dm, int ** x_qh, int ** x_sc);
 typedef void (*load_tiles_cuda_t)(
@@ -1075,6 +1076,25 @@ typedef float (*vec_dot_q_mul_mat_cuda_t)(
 
 // Utility function
 
+template<typename dst_t>
+static __device__ __forceinline__ dst_t convert_from_half(half val) {
+    return val;
+}
+
+template<>
+__device__ __forceinline__ c10::BFloat16 convert_from_half<c10::BFloat16>(half val) {
+#if defined(__CUDA_ARCH__) && __CUDA_ARCH__ >= 800
+    return __float2bfloat16(__half2float(val));
+#else
+    return __half2float(val);
+#endif  // defined(__CUDA_ARCH__) && __CUDA_ARCH__ >= 800
+}
+
+template<>
+__device__ __forceinline__ float convert_from_half<float>(half val) {
+    return __half2float(val);
+}
+
 #if defined(USE_ROCM)
 
 #ifndef __has_builtin

csrc/quantization/gguf/gguf_kernel.cu

@@ -71,14 +71,19 @@ static void quantize_row_q8_1_cuda(const scalar_t* x, void* vy, const int kx,
 }
 
 torch::Tensor ggml_dequantize(torch::Tensor W,  // quant weight
-                              int64_t type, int64_t m, int64_t n) {
+                              int64_t type, int64_t m, int64_t n,
+                              std::optional<at::ScalarType> const& dtype) {
   const at::cuda::OptionalCUDAGuard device_guard(device_of(W));
-  auto options =
-      torch::TensorOptions().dtype(torch::kFloat16).device(W.device());
+  auto dtype_ = dtype.value_or(torch::kFloat16);
+  auto options = torch::TensorOptions().dtype(dtype_).device(W.device());
   at::Tensor DW = torch::empty({m, n}, options);
   cudaStream_t stream = at::cuda::getCurrentCUDAStream().stream();
-  const to_fp16_cuda_t to_fp16_cuda = ggml_get_to_fp16_cuda(type);
-  to_fp16_cuda((void*)W.data_ptr(), (half*)DW.data_ptr(), m * n, stream);
+
+  VLLM_DISPATCH_FLOATING_TYPES(DW.scalar_type(), "ggml_dequantize", [&] {
+    auto to_cuda = ggml_get_to_cuda<scalar_t>(type);
+    to_cuda((void*)W.data_ptr(), (scalar_t*)DW.data_ptr(), m * n, stream);
+  });
+
   return DW;
 }
 

csrc/quantization/gguf/moe.cuh

@@ -129,7 +129,7 @@ static __device__ __forceinline__ void moe_q(
 }
 
 #if defined(USE_ROCM)
-  #define MOE_X_Q4_0 64
+  #define MOE_X_Q4_0 8
   #define MOE_Y_Q4_0 128
   #define NWARPS_Q4_0 8
 #else
@@ -190,7 +190,7 @@ static void ggml_moe_q4_0_q8_1_cuda(
 }
 
 #if defined(USE_ROCM)
-  #define MOE_X_Q4_1 64
+  #define MOE_X_Q4_1 8
   #define MOE_Y_Q4_1 128
   #define NWARPS_Q4_1 8
 #else
@@ -251,7 +251,7 @@ static void ggml_moe_q4_1_q8_1_cuda(
 }
 
 #if defined(USE_ROCM)
-  #define MOE_X_Q5_0 64
+  #define MOE_X_Q5_0 8
   #define MOE_Y_Q5_0 128
   #define NWARPS_Q5_0 8
 #else
@@ -312,7 +312,7 @@ static void ggml_moe_q5_0_q8_1_cuda(
 }
 
 #if defined(USE_ROCM)
-  #define MOE_X_Q5_1 64
+  #define MOE_X_Q5_1 8
   #define MOE_Y_Q5_1 128
   #define NWARPS_Q5_1 8
 #else
@@ -373,7 +373,7 @@ static void ggml_moe_q5_1_q8_1_cuda(
 }
 
 #if defined(USE_ROCM)
-  #define MOE_X_Q8_0 64
+  #define MOE_X_Q8_0 8
   #define MOE_Y_Q8_0 128
   #define NWARPS_Q8_0 8
 #else
@@ -434,7 +434,7 @@ static void ggml_moe_q8_0_q8_1_cuda(
 }
 
 #if defined(USE_ROCM)
-  #define MOE_X_Q2_K 64
+  #define MOE_X_Q2_K 8
   #define MOE_Y_Q2_K 128
   #define NWARPS_Q2_K 8
 #else
@@ -495,7 +495,7 @@ static void ggml_moe_q2_K_q8_1_cuda(
 }
 
 #if defined(USE_ROCM)
-  #define MOE_X_Q3_K 64
+  #define MOE_X_Q3_K 8
   #define MOE_Y_Q3_K 128
   #define NWARPS_Q3_K 8
 #else
@@ -556,7 +556,7 @@ static void ggml_moe_q3_K_q8_1_cuda(
 }
 
 #if defined(USE_ROCM)
-  #define MOE_X_Q4_K 64
+  #define MOE_X_Q4_K 8
   #define MOE_Y_Q4_K 128
   #define NWARPS_Q4_K 8
 #else
@@ -617,7 +617,7 @@ static void ggml_moe_q4_K_q8_1_cuda(
 }
 
 #if defined(USE_ROCM)
-  #define MOE_X_Q5_K 64
+  #define MOE_X_Q5_K 8
   #define MOE_Y_Q5_K 128
   #define NWARPS_Q5_K 8
 #else
@@ -678,7 +678,7 @@ static void ggml_moe_q5_K_q8_1_cuda(
 }
 
 #if defined(USE_ROCM)
-  #define MOE_X_Q6_K 64
+  #define MOE_X_Q6_K 8
   #define MOE_Y_Q6_K 128
   #define NWARPS_Q6_K 8
 #else

csrc/quantization/gptq_marlin/gptq_marlin.cu

@@ -1785,7 +1785,7 @@ __global__ void Marlin(
             <<<blocks, NUM_THREADS, max_shared_mem, stream>>>(                 \
                 A_ptr, B_ptr, C_ptr, C_tmp_ptr, s_ptr, zp_ptr, g_idx_ptr,      \
                 num_groups, prob_m, prob_n, prob_k, lda, locks,                \
-                use_atomic_add, use_fp32_reduce);                              \
+                part_use_atomic_add, use_fp32_reduce);                         \
       }                                                                        \
     }
 
@@ -2215,6 +2215,10 @@ void marlin_mm(const void* A, const void* B, void* C, void* C_tmp, void* s,
       thread_m_blocks = exec_cfg.max_m_blocks;
     }
 
+    // atomic add reduce have better performance only when m * n is small
+    bool part_use_atomic_add =
+        use_atomic_add && div_ceil(prob_m, 64) * prob_n <= 2048;
+
     if (false) {
     }
     GPTQ_CALL_IF(vllm::kU4B8, 16, 4, 256)

csrc/quantization/gptq_marlin/marlin.cuh

@@ -9,7 +9,11 @@
 #include <cuda_runtime.h>
 #include <iostream>
 
-namespace marlin {
+#ifndef MARLIN_NAMESPACE_NAME
+  #define MARLIN_NAMESPACE_NAME marlin
+#endif
+
+namespace MARLIN_NAMESPACE_NAME {
 
 // Marlin params
 
@@ -23,6 +27,7 @@ static constexpr int pipe_stages =
 
 static constexpr int min_thread_n = 64;
 static constexpr int min_thread_k = 64;
+static constexpr int max_thread_n = 256;
 
 static constexpr int tile_size = 16;
 static constexpr int max_par = 16;
@@ -84,4 +89,4 @@ __device__ inline void cp_async_wait() {
 
 #endif
 
-}  // namespace marlin
+}  // namespace MARLIN_NAMESPACE_NAME

csrc/quantization/gptq_marlin/marlin_dtypes.cuh

@@ -5,7 +5,11 @@
 #include <cuda_fp16.h>
 #include <cuda_bf16.h>
 
-namespace marlin {
+#ifndef MARLIN_NAMESPACE_NAME
+  #define MARLIN_NAMESPACE_NAME marlin
+#endif
+
+namespace MARLIN_NAMESPACE_NAME {
 
 template <typename scalar_t>
 class ScalarType {};
@@ -54,7 +58,7 @@ class ScalarType<nv_bfloat16> {
   using FragS = Vec<nv_bfloat162, 1>;
   using FragZP = Vec<nv_bfloat162, 4>;
 
-#if defined(__CUDA_ARCH__) && __CUDA_ARCH__ >= 800
+#if !defined(__CUDA_ARCH__) || __CUDA_ARCH__ >= 800
   static __device__ float inline num2float(const nv_bfloat16 x) {
     return __bfloat162float(x);
   }
@@ -74,6 +78,6 @@ class ScalarType<nv_bfloat16> {
 #endif
 };
 
-}  // namespace marlin
+}  // namespace MARLIN_NAMESPACE_NAME
 
 #endif

csrc/rocm/attention.cu

@@ -272,6 +272,7 @@ __launch_bounds__(NUM_THREADS, 5) void paged_attention_ll4mi_QKV_mfma16_kernel(
     const float scale,    
     const int* __restrict__ block_tables,   // [num_seqs, max_num_blocks_per_seq]
     const int* __restrict__ context_lens,   // [num_seqs]
+    const int* __restrict__ query_start_loc_ptr,   // [num_seqs]
     const int max_num_blocks_per_seq,
     const float* __restrict__ alibi_slopes, // [num_heads]
     const int q_stride,
@@ -291,6 +292,13 @@ __launch_bounds__(NUM_THREADS, 5) void paged_attention_ll4mi_QKV_mfma16_kernel(
   const int rowid = laneid / 16;
 
   const auto seq_idx = blockIdx.x;
+  // NOTE queries with sequence len > 1 are prefills and taken care by another
+  // kernel.
+  if (query_start_loc_ptr != nullptr &&
+      (query_start_loc_ptr[seq_idx + 1] - query_start_loc_ptr[seq_idx]) != 1) {
+    return;
+  }
+
   const auto partition_idx = blockIdx.y;
 
   constexpr int T_PAR_SIZE = 256;  // token partition size set to 256
@@ -377,9 +385,10 @@ __launch_bounds__(NUM_THREADS, 5) void paged_attention_ll4mi_QKV_mfma16_kernel(
   // fetch Q in shared across warps and then write to registers
   const int local_qhead_idx = 4 * warpid + rowid;
   const int global_qhead_idx = wg_start_head_idx + local_qhead_idx;
-  const int64_t seq_idx64 = static_cast<int64_t>(seq_idx);
+  const int64_t query_start_off = static_cast<int64_t>(
+      query_start_loc_ptr ? query_start_loc_ptr[seq_idx] : seq_idx);
   const scalar_t* q_ptr =
-      q + seq_idx64 * q_stride + global_qhead_idx * HEAD_SIZE;
+      q + query_start_off * q_stride + global_qhead_idx * HEAD_SIZE;
 
   const int qhead_element = lane16id * CONTIGUOUS_SCALAR_ELEMS_16B;
   if ((local_qhead_idx < GQA_RATIO) && (qhead_element < HEAD_SIZE)) {
@@ -777,6 +786,7 @@ __launch_bounds__(NUM_THREADS) void paged_attention_ll4mi_QKV_mfma4_kernel(
     const float scale,
     const int* __restrict__ block_tables,   // [num_seqs, max_num_blocks_per_seq]
     const int* __restrict__ context_lens,   // [num_seqs]
+    const int* __restrict__ query_start_loc_ptr,   // [num_seqs]
     const int max_num_blocks_per_seq,
     const float* __restrict__ alibi_slopes, // [num_heads]
     const int q_stride,
@@ -794,6 +804,12 @@ __launch_bounds__(NUM_THREADS) void paged_attention_ll4mi_QKV_mfma4_kernel(
   const int lane4id = laneid % 4;
 
   const auto seq_idx = blockIdx.x;
+  // NOTE queries with sequence len > 1 are prefills and taken care by another
+  // kernel.
+  if (query_start_loc_ptr != nullptr &&
+      (query_start_loc_ptr[seq_idx + 1] - query_start_loc_ptr[seq_idx] != 1)) {
+    return;
+  }
   const auto partition_idx = blockIdx.y;
   const auto partition_size = blockDim.x;
   const auto max_num_partitions = gridDim.y;
@@ -882,9 +898,11 @@ __launch_bounds__(NUM_THREADS) void paged_attention_ll4mi_QKV_mfma4_kernel(
     }
 
     // fetch q elements
-    // every 4 lanes fetch 8 elems, so warp fetches 8*16 = 128 elems
+    // every 4 lanes fetch 8 elems, so warp fetches 8*16 = 128 elemsc
+    const int64_t query_start_off = static_cast<int64_t>(
+        query_start_loc_ptr ? query_start_loc_ptr[seq_idx] : seq_idx);
     const scalar_t* q_ptr =
-        q + seq_idx * q_stride + wg_start_head_idx * HEAD_SIZE;
+        q + query_start_off * q_stride + wg_start_head_idx * HEAD_SIZE;
     const _B16x8* q_ptrh8 = reinterpret_cast<const _B16x8*>(q_ptr);
     const int qhead_elemh8 = laneid / 4;
 
@@ -1267,10 +1285,19 @@ __launch_bounds__(NUM_THREADS) void paged_attention_ll4mi_reduce_kernel(
     const scalar_t* __restrict__ tmp_out,  // [num_seqs, num_heads,
                                            // max_num_partitions, head_size]
     const int* __restrict__ context_lens,  // [num_seqs]
+    const int* __restrict__ query_start_loc_ptr,  // [num_seqs]
     const int max_num_partitions) {
   const auto num_heads = gridDim.x;
   const auto head_idx = blockIdx.x;
   const auto seq_idx = blockIdx.y;
+
+  // NOTE queries with sequence len > 1 are prefills and taken care by another
+  // kernel.
+  if (query_start_loc_ptr != nullptr &&
+      (query_start_loc_ptr[seq_idx + 1] - query_start_loc_ptr[seq_idx] != 1)) {
+    return;
+  }
+
   const int context_len = context_lens[seq_idx];
   const int num_partitions = DIVIDE_ROUND_UP(context_len, PARTITION_SIZE);
   [[maybe_unused]] constexpr int NUM_WARPS = NUM_THREADS / WARP_SIZE;
@@ -1439,7 +1466,9 @@ __launch_bounds__(NUM_THREADS) void paged_attention_ll4mi_reduce_kernel(
       __fdividef(1.0f, shared_global_exp_sum + 1e-6f);
   acc *= inv_global_exp_sum;
 
-  OUTT* out_ptr = out + static_cast<int64_t>(seq_idx) * num_heads * HEAD_SIZE +
+  const int64_t query_start_off = static_cast<int64_t>(
+      query_start_loc_ptr ? query_start_loc_ptr[seq_idx] : seq_idx);
+  OUTT* out_ptr = out + query_start_off * num_heads * HEAD_SIZE +
                   static_cast<int64_t>(head_idx) * HEAD_SIZE;
   if constexpr (std::is_same<OUTT, bit8_t>::value) {
     out_ptr[threadIdx.x] =
@@ -1466,6 +1495,7 @@ __launch_bounds__(NUM_THREADS) void paged_attention_ll4mi_QKV_mfma16_kernel(
     const float scale,
     const int* __restrict__ block_tables,    // [num_seqs, max_num_blocks_per_seq]
     const int* __restrict__ context_lens,    // [num_seqs]
+    const int* __restrict__ query_start_loc_ptr,  // [num_seqs]
     const int max_num_blocks_per_seq,
     const float* __restrict__ alibi_slopes,  // [num_heads]
     const int q_stride,
@@ -1492,6 +1522,7 @@ __launch_bounds__(NUM_THREADS) void paged_attention_ll4mi_QKV_mfma4_kernel(
     const float scale,
     const int* __restrict__ block_tables,    // [num_seqs, max_num_blocks_per_seq]
     const int* __restrict__ context_lens,    // [num_seqs]
+    const int* __restrict__ query_start_loc_ptr,  // [num_seqs]
     const int max_num_blocks_per_seq,
     const float* __restrict__ alibi_slopes,  // [num_heads]
     const int q_stride,
@@ -1515,6 +1546,7 @@ __launch_bounds__(NUM_THREADS) void paged_attention_ll4mi_reduce_kernel(
     const float* __restrict__ max_logits,  // [num_seqs, num_heads, max_num_partitions]
     const scalar_t* __restrict__ tmp_out,  // [num_seqs, num_heads, max_num_partitions, head_size]
     const int* __restrict__ context_lens,  // [num_seqs]
+    const int* __restrict__ query_start_loc_ptr,  // [num_seqs]
     const int max_num_partitions) {
   UNREACHABLE_CODE
 }
@@ -1522,34 +1554,34 @@ __launch_bounds__(NUM_THREADS) void paged_attention_ll4mi_reduce_kernel(
 
 #endif  // defined(__HIP__MI300_MI250__) TODO: Add NAVI support
 
-#define LAUNCH_CUSTOM_ATTENTION_MFMA16(GQA_RATIO)                             \
-  paged_attention_ll4mi_QKV_mfma16_kernel<T, KVT, KV_DTYPE, OUTT, BLOCK_SIZE, \
-                                          HEAD_SIZE, NTHR, ALIBI_ENABLED,     \
-                                          GQA_RATIO>                          \
-      <<<grid, block, 0, stream>>>(                                           \
-          query_ptr, key_cache_ptr, value_cache_ptr, num_kv_heads, scale,     \
-          block_tables_ptr, context_lens_ptr, max_num_blocks_per_seq,         \
-          alibi_slopes_ptr, q_stride, kv_block_stride, kv_head_stride,        \
-          exp_sums_ptr, max_logits_ptr, tmp_out_ptr, out_ptr, max_ctx_blocks, \
-          k_scale_ptr, v_scale_ptr);
+#define LAUNCH_CUSTOM_ATTENTION_MFMA16(GQA_RATIO)                              \
+  paged_attention_ll4mi_QKV_mfma16_kernel<T, KVT, KV_DTYPE, OUTT, BLOCK_SIZE,  \
+                                          HEAD_SIZE, NTHR, ALIBI_ENABLED,      \
+                                          GQA_RATIO>                           \
+      <<<grid, block, 0, stream>>>(                                            \
+          query_ptr, key_cache_ptr, value_cache_ptr, num_kv_heads, scale,      \
+          block_tables_ptr, context_lens_ptr, query_start_loc_ptr,             \
+          max_num_blocks_per_seq, alibi_slopes_ptr, q_stride, kv_block_stride, \
+          kv_head_stride, exp_sums_ptr, max_logits_ptr, tmp_out_ptr, out_ptr,  \
+          max_ctx_blocks, k_scale_ptr, v_scale_ptr);
 
-#define LAUNCH_CUSTOM_ATTENTION_MFMA4(GQA_RATIO)                              \
-  paged_attention_ll4mi_QKV_mfma4_kernel<T, KVT, KV_DTYPE, OUTT, BLOCK_SIZE,  \
-                                         HEAD_SIZE, NTHR, ALIBI_ENABLED,      \
-                                         GQA_RATIO>                           \
-      <<<grid, block, 0, stream>>>(                                           \
-          query_ptr, key_cache_ptr, value_cache_ptr, num_kv_heads, scale,     \
-          block_tables_ptr, context_lens_ptr, max_num_blocks_per_seq,         \
-          alibi_slopes_ptr, q_stride, kv_block_stride, kv_head_stride,        \
-          exp_sums_ptr, max_logits_ptr, tmp_out_ptr, out_ptr, max_ctx_blocks, \
-          k_scale_ptr, v_scale_ptr);
+#define LAUNCH_CUSTOM_ATTENTION_MFMA4(GQA_RATIO)                               \
+  paged_attention_ll4mi_QKV_mfma4_kernel<T, KVT, KV_DTYPE, OUTT, BLOCK_SIZE,   \
+                                         HEAD_SIZE, NTHR, ALIBI_ENABLED,       \
+                                         GQA_RATIO>                            \
+      <<<grid, block, 0, stream>>>(                                            \
+          query_ptr, key_cache_ptr, value_cache_ptr, num_kv_heads, scale,      \
+          block_tables_ptr, context_lens_ptr, query_start_loc_ptr,             \
+          max_num_blocks_per_seq, alibi_slopes_ptr, q_stride, kv_block_stride, \
+          kv_head_stride, exp_sums_ptr, max_logits_ptr, tmp_out_ptr, out_ptr,  \
+          max_ctx_blocks, k_scale_ptr, v_scale_ptr);
 
 #define LAUNCH_CUSTOM_REDUCTION(NPAR_LOOPS)                          \
   paged_attention_ll4mi_reduce_kernel<T, OUTT, HEAD_SIZE, HEAD_SIZE, \
                                       PARTITION_SIZE, NPAR_LOOPS>    \
       <<<reduce_grid, reduce_block, 0, stream>>>(                    \
           out_ptr, exp_sums_ptr, max_logits_ptr, tmp_out_ptr,        \
-          context_lens_ptr, max_num_partitions);
+          context_lens_ptr, query_start_loc_ptr, max_num_partitions);
 
 template <typename T, typename KVT, vllm::Fp8KVCacheDataType KV_DTYPE,
           int BLOCK_SIZE, int HEAD_SIZE, typename OUTT, int PARTITION_SIZE_OLD,
@@ -1559,9 +1591,10 @@ void paged_attention_custom_launcher(
     torch::Tensor& tmp_out, torch::Tensor& query, torch::Tensor& key_cache,
     torch::Tensor& value_cache, const int num_kv_heads, float scale,
     torch::Tensor& block_tables, torch::Tensor& context_lens,
-    int max_context_len, const std::optional<torch::Tensor>& alibi_slopes,
-    torch::Tensor& k_scale, torch::Tensor& v_scale) {
-  int num_seqs = query.size(0);
+    const std::optional<torch::Tensor>& query_start_loc, int max_context_len,
+    const std::optional<torch::Tensor>& alibi_slopes, torch::Tensor& k_scale,
+    torch::Tensor& v_scale) {
+  int num_seqs = block_tables.size(0);
   int num_heads = query.size(1);
   int head_size = query.size(2);
   int max_num_blocks_per_seq = block_tables.size(1);
@@ -1569,6 +1602,13 @@ void paged_attention_custom_launcher(
   int kv_block_stride = key_cache.stride(0);
   int kv_head_stride = key_cache.stride(1);
 
+  // NOTE: query start location is optional for V0 decode should not be used.
+  // If batch contains mix of prefills and decode, prefills should be skipped.
+  const int* query_start_loc_ptr =
+      query_start_loc
+          ? reinterpret_cast<const int*>(query_start_loc.value().data_ptr())
+          : nullptr;
+
   // NOTE: alibi_slopes is optional.
   const float* alibi_slopes_ptr =
       alibi_slopes
@@ -1700,8 +1740,8 @@ void paged_attention_custom_launcher(
   paged_attention_custom_launcher<T, KVT, KV_DTYPE, BLK_SIZE, HEAD_SIZE, T, \
                                   PSIZE, ALIBI_ENABLED>(                    \
       out, exp_sums, max_logits, tmp_out, query, key_cache, value_cache,    \
-      num_kv_heads, scale, block_tables, context_lens, max_context_len,     \
-      alibi_slopes, k_scale, v_scale);
+      num_kv_heads, scale, block_tables, context_lens, query_start_loc,     \
+      max_context_len, alibi_slopes, k_scale, v_scale);
 
 #define CALL_CUSTOM_LAUNCHER_ALIBI(T, KVT, KV_DTYPE, BLK_SIZE, HEAD_SIZE,      \
                                    PSIZE)                                      \
@@ -1750,6 +1790,7 @@ void paged_attention(
     double scale,
     torch::Tensor& block_tables, // [num_seqs, max_num_blocks_per_seq]
     torch::Tensor& context_lens, // [num_seqs]
+    const std::optional<torch::Tensor>& query_start_loc, // [num_seqs]
     int64_t block_size, int64_t max_context_len,
     const std::optional<torch::Tensor>& alibi_slopes,
     const std::string& kv_cache_dtype, torch::Tensor& k_scale,

csrc/rocm/ops.h

@@ -2,13 +2,23 @@
 
 #include <torch/all.h>
 
+torch::Tensor LLMM1(at::Tensor& in_a, at::Tensor& in_b,
+                    const int64_t rows_per_block);
+
+torch::Tensor wvSplitK(at::Tensor& in_a, at::Tensor& in_b,
+                       const int64_t CuCount);
+
+void wvSplitKQ(at::Tensor& in_a, at::Tensor& in_b, at::Tensor& out_c,
+               at::Tensor& scale_a, at::Tensor& scale_b, const int64_t CuCount);
+
 void paged_attention(torch::Tensor& out, torch::Tensor& exp_sums,
                      torch::Tensor& max_logits, torch::Tensor& tmp_out,
                      torch::Tensor& query, torch::Tensor& key_cache,
                      torch::Tensor& value_cache, int64_t num_kv_heads,
                      double scale, torch::Tensor& block_tables,
-                     torch::Tensor& context_lens, int64_t block_size,
-                     int64_t max_context_len,
+                     torch::Tensor& context_lens,
+                     const std::optional<torch::Tensor>& query_start_loc,
+                     int64_t block_size, int64_t max_context_len,
                      const std::optional<torch::Tensor>& alibi_slopes,
                      const std::string& kv_cache_dtype, torch::Tensor& k_scale,
                      torch::Tensor& v_scale);