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7 Commits

Author SHA1 Message Date
70b4e46e70 compilation is fixed 2025-02-06 20:49:29 +00:00
5fb9dbe6f6 fix capture model 2025-02-06 20:18:30 +00:00
996b92ccb4 swap works! 2025-02-05 20:28:33 +00:00
2b0526fa15 works! 2025-02-05 16:54:57 +00:00
7be649256f fixes 2025-02-05 15:36:38 +00:00
627efde813 fixes 2025-02-04 22:16:19 +00:00
c2867d5bc1 Optimize decode/prompt prepare code 2025-02-04 21:12:07 +00:00
7 changed files with 626 additions and 341 deletions

View File

@ -5,7 +5,7 @@ requests >= 2.26.0
tqdm
blake3
py-cpuinfo
transformers >= 4.45.2 # Required for Llama 3.2 and Qwen2-VL.
transformers >= 4.48.2 # Required for Bamba model and Transformers backend.
tokenizers >= 0.19.1 # Required for Llama 3.
protobuf # Required by LlamaTokenizer.
fastapi >= 0.107.0, < 0.113.0; python_version < '3.9'
@ -34,6 +34,6 @@ pyyaml
six>=1.16.0; python_version > '3.11' # transitive dependency of pandas that needs to be the latest version for python 3.12
setuptools>=74.1.1; python_version > '3.11' # Setuptools is used by triton, we need to ensure a modern version is installed for 3.12+ so that it does not try to import distutils, which was removed in 3.12
einops # Required for Qwen2-VL.
compressed-tensors == 0.8.1 # required for compressed-tensors
compressed-tensors == 0.9.1 # required for compressed-tensors
depyf==0.18.0 # required for profiling and debugging with compilation config
cloudpickle # allows pickling lambda functions in model_executor/models/registry.py
cloudpickle # allows pickling lambda functions in model_executor/models/registry.py

View File

@ -2,7 +2,7 @@
# This file is autogenerated by pip-compile with Python 3.12
# by the following command:
#
# python3.12 -m piptools compile requirements-test.in -o requirements-test.txt
# python3.12 -m piptools compile requirements-test.in -o requirements-test.txt
#
absl-py==2.1.0
# via rouge-score
@ -106,9 +106,17 @@ dnspython==2.7.0
docutils==0.16
# via awscli
einops==0.8.0
# via -r requirements-test.in
# via
# -r requirements-test.in
# encodec
# vector-quantize-pytorch
# vocos
einx==0.3.0
# via vector-quantize-pytorch
email-validator==2.2.0
# via pydantic
encodec==0.1.1
# via vocos
evaluate==0.4.3
# via lm-eval
fastparquet==2024.11.0
@ -125,6 +133,8 @@ filelock==3.16.1
# triton
fonttools==4.54.1
# via matplotlib
frozendict==2.4.6
# via einx
frozenlist==1.5.0
# via
# aiohttp
@ -159,6 +169,7 @@ huggingface-hub==0.26.2
# timm
# tokenizers
# transformers
# vocos
idna==3.10
# via
# anyio
@ -261,6 +272,8 @@ numpy==1.26.4
# cupy-cuda12x
# datasets
# decord
# einx
# encodec
# evaluate
# fastparquet
# genai-perf
@ -283,6 +296,7 @@ numpy==1.26.4
# torchvision
# transformers
# tritonclient
# vocos
nvidia-cublas-cu12==12.4.5.8
# via
# nvidia-cudnn-cu12
@ -455,6 +469,7 @@ pyyaml==6.0.2
# responses
# timm
# transformers
# vocos
ray[adag]==2.40.0
# via -r requirements-test.in
redis==5.2.0
@ -517,6 +532,7 @@ scipy==1.13.1
# scikit-learn
# sentence-transformers
# statsmodels
# vocos
sentence-transformers==3.2.1
# via -r requirements-test.in
sentencepiece==0.2.0
@ -540,7 +556,9 @@ sqlitedict==2.1.0
statsmodels==0.14.4
# via genai-perf
sympy==1.13.1
# via torch
# via
# einx
# torch
tabledata==1.3.3
# via pytablewriter
tabulate==0.9.0
@ -568,12 +586,21 @@ torch==2.5.1
# -r requirements-test.in
# accelerate
# bitsandbytes
# encodec
# lm-eval
# peft
# sentence-transformers
# tensorizer
# timm
# torchaudio
# torchvision
# vector-quantize-pytorch
# vocos
torchaudio==2.5.1
# via
# -r requirements-test.in
# encodec
# vocos
torchvision==0.20.1
# via timm
tqdm==4.66.6
@ -584,13 +611,15 @@ tqdm==4.66.6
# lm-eval
# nltk
# peft
# pqdm
# sentence-transformers
# tqdm-multiprocess
# transformers
tqdm-multiprocess==0.0.11
# via lm-eval
transformers==4.47.0
transformers==4.48.2
# via
# -r requirements-test.in
# genai-perf
# lm-eval
# peft
@ -615,6 +644,7 @@ typing-extensions==4.12.2
# huggingface-hub
# librosa
# mistral-common
# pqdm
# pydantic
# pydantic-core
# torch
@ -626,6 +656,10 @@ urllib3==2.2.3
# requests
# responses
# tritonclient
vector-quantize-pytorch==1.21.2
# via -r requirements-test.in
vocos==0.1.0
# via -r requirements-test.in
word2number==1.1
# via lm-eval
xxhash==3.5.0
@ -638,4 +672,4 @@ zstandard==0.23.0
# via lm-eval
# The following packages are considered to be unsafe in a requirements file:
# setuptools
# setuptools

View File

@ -13,13 +13,11 @@ ray[default]
# Install torch_xla
--pre
--extra-index-url https://download.pytorch.org/whl/nightly/cpu
--find-links https://storage.googleapis.com/libtpu-wheels/index.html
--find-links https://storage.googleapis.com/libtpu-releases/index.html
--find-links https://storage.googleapis.com/jax-releases/jax_nightly_releases.html
--find-links https://storage.googleapis.com/jax-releases/jaxlib_nightly_releases.html
torch==2.6.0.dev20241126+cpu
torchvision==0.20.0.dev20241126+cpu
torch_xla[tpu] @ https://storage.googleapis.com/pytorch-xla-releases/wheels/tpuvm/torch_xla-2.6.0.dev20241126-cp39-cp39-linux_x86_64.whl ; python_version == "3.9"
torch_xla[tpu] @ https://storage.googleapis.com/pytorch-xla-releases/wheels/tpuvm/torch_xla-2.6.0.dev20241126-cp310-cp310-linux_x86_64.whl ; python_version == "3.10"
torch_xla[tpu] @ https://storage.googleapis.com/pytorch-xla-releases/wheels/tpuvm/torch_xla-2.6.0.dev20241126-cp311-cp311-linux_x86_64.whl ; python_version == "3.11"
jaxlib==0.4.36.dev20241122
jax==0.4.36.dev20241122
torch==2.6.0.dev20241216+cpu
torch_xla[tpu, pallas] @ https://storage.googleapis.com/pytorch-xla-releases/wheels/tpuvm/torch_xla-2.7.0.dev20250124-cp39-cp39-linux_x86_64.whl ; python_version == "3.9"
torch_xla[tpu, pallas] @ https://storage.googleapis.com/pytorch-xla-releases/wheels/tpuvm/torch_xla-2.7.0.dev20250124-cp310-cp310-linux_x86_64.whl ; python_version == "3.10"
torch_xla[tpu, pallas] @ https://storage.googleapis.com/pytorch-xla-releases/wheels/tpuvm/torch_xla-2.7.0.dev20250124-cp311-cp311-linux_x86_64.whl ; python_version == "3.11"

View File

@ -57,6 +57,14 @@ class BlockTable:
src, :num_blocks]
self.num_blocks_per_row[tgt] = num_blocks
def swap_row(self, src: int, tgt: int) -> None:
num_blocks_src = self.num_blocks_per_row[src]
num_blocks_tgt = self.num_blocks_per_row[tgt]
self.num_blocks_per_row[src] = num_blocks_tgt
self.num_blocks_per_row[tgt] = num_blocks_src
self.block_table_np[[src, tgt]] = self.block_table_np[[tgt, src]]
def commit(self, num_reqs: int) -> None:
self.block_table[:num_reqs].copy_(self.block_table_cpu[:num_reqs],
non_blocking=True)

View File

@ -436,3 +436,77 @@ class InputBatch:
@property
def no_prompt_logprob(self) -> bool:
return len(self.prompt_logprob_reqs) == 0
def swap_positions(b: InputBatch, id_1, id_2):
assert id_1 != id_2
req_id_1 = b.req_ids[id_1]
req_id_2 = b.req_ids[id_2]
assert req_id_1 is not None
assert req_id_2 is not None
assert id_1 == b.req_id_to_index[req_id_1]
assert id_2 == b.req_id_to_index[req_id_2]
b.req_ids[id_1], b.req_ids[id_2] = b.req_ids[id_2], b.req_ids[id_1]
b.req_id_to_index[req_id_1], b.req_id_to_index[
req_id_2] = b.req_id_to_index[req_id_2], b.req_id_to_index[req_id_1]
ids = [id_1, id_2]
rev_ids = [id_2, id_1]
b.num_tokens[ids] = b.num_tokens[rev_ids]
b.token_ids_cpu[ids] = b.token_ids_cpu[rev_ids]
b.num_prompt_tokens[ids] = b.num_prompt_tokens[rev_ids]
b.num_computed_tokens_cpu[ids] = b.num_computed_tokens_cpu[rev_ids]
b.block_table.swap_row(id_1, id_2)
b.temperature_cpu[ids] = b.temperature_cpu[rev_ids]
b.top_p_cpu[ids] = b.top_p_cpu[rev_ids]
b.top_k_cpu[ids] = b.top_k_cpu[rev_ids]
b.frequency_penalties_cpu[ids] = b.frequency_penalties_cpu[rev_ids]
b.presence_penalties_cpu[ids] = b.presence_penalties_cpu[rev_ids]
b.repetition_penalties_cpu[ids] = b.repetition_penalties_cpu[rev_ids]
b.min_tokens[id_1], b.min_tokens[id_2] = b.min_tokens[id_2], b.min_tokens[
id_1]
b.stop_token_ids[id_1], b.stop_token_ids[id_2] = b.stop_token_ids[
id_2], b.stop_token_ids[id_1]
gen_1 = b.generators.pop(id_1, None)
gen_2 = b.generators.pop(id_2, None)
if gen_1 is not None:
b.generators[id_2] = gen_1
if gen_2 is not None:
b.generators[id_1] = gen_2
def ensure_decodes_first(b: InputBatch):
num_reqs = b.num_reqs
while True:
# Find the first prompt index
first_prompt_index = None
for i in range(num_reqs):
if b.num_computed_tokens_cpu[i] < b.num_prompt_tokens[i]:
first_prompt_index = i
break
if first_prompt_index is None:
break
# Find the last decode index
last_decode_index = None
for i in reversed(range(num_reqs)):
if b.num_computed_tokens_cpu[i] >= b.num_prompt_tokens[i]:
last_decode_index = i
break
if last_decode_index is None:
break
# Sanity
assert first_prompt_index != last_decode_index
# Check if done
if first_prompt_index > last_decode_index:
break
# Swap
swap_positions(b, first_prompt_index, last_decode_index)

View File

@ -3,6 +3,7 @@ from dataclasses import dataclass
from typing import TYPE_CHECKING, Dict, List, Optional, Tuple, cast
from unittest.mock import patch
import numpy as np
import torch
import torch.distributed
import torch.nn as nn
@ -20,8 +21,10 @@ from vllm.v1.attention.backends.pallas import (PallasAttentionBackend,
from vllm.v1.kv_cache_interface import FullAttentionSpec, KVCacheConfig
from vllm.v1.outputs import ModelRunnerOutput
from vllm.v1.utils import bind_kv_cache
from vllm.v1.worker.gpu_input_batch import CachedRequestState, InputBatch
from vllm.v1.worker.gpu_input_batch import (CachedRequestState, InputBatch,
ensure_decodes_first)
from vllm.v1.worker.model_runner_base import ExecutionMode, ModelRunnerBase
from vllm.v1.core.kv_cache_utils import get_kv_cache_config
if TYPE_CHECKING:
from vllm.v1.core.scheduler import SchedulerOutput
@ -31,30 +34,24 @@ logger = init_logger(__name__)
# Here we utilize the behavior that out-of-bound index is ignored.
# FIXME(woosuk): Find a more reliable way to prevent possible bugs.
_PAD_SLOT_ID = 1_000_000_000
# FIXME(woosuk): Temporarily disabled top-p sampling since it's too slow.
_ENABLE_TOP_P = False
# FIXME(woosuk): A temporary hack to support `n > 1`.
# This can significantly affect the performance if too large.
_MAX_NUM_SAMPLES = 128
@dataclass
class PromptInputData:
req_ids: List
prompt_lens: List
input_tokens: List
input_positions: List
attn_metadata: List
def zipped(self):
return zip(self.req_ids, self.prompt_lens, self.input_tokens,
self.input_positions, self.attn_metadata)
class PromptDecodeInfo:
prompt_req_ids: List[str]
decode_req_ids: List[str]
prompt_scheduled_tokens: List[int]
@dataclass
class DecodeInputData:
req_ids: List
class PromptData:
input_tokens: torch.Tensor
input_positions: torch.Tensor
attn_metadata: PallasMetadata
@dataclass
class DecodeData:
input_tokens: Optional[torch.Tensor] = None
input_positions: Optional[torch.Tensor] = None
attn_metadata: Optional[PallasMetadata] = None
@ -69,266 +66,371 @@ class TPUModelRunner(ModelRunnerBase):
):
super().__init__(vllm_config, device)
# Persistent batch.
self.input_batch = InputBatch(
max_num_reqs=self.max_num_reqs,
max_model_len=self.max_model_len,
max_num_blocks_per_req=self.max_num_blocks_per_req,
device=self.device,
pin_memory=self.pin_memory,
vocab_size=self.model_config.get_vocab_size(),
)
# Request states.
self.requests: Dict[str, CachedRequestState] = {}
# KV caches for forward pass
self.kv_caches: List[Tuple[torch.Tensor, torch.Tensor]] = []
# Used to initialize positions for the individual prefills
self.prefill_input_positions = torch.tensor(range(self.max_model_len),
device="cpu",
dtype=torch.int32).reshape(
1, -1)
# Cached torch/numpy tensors
self.num_swaps = 2
self.cur_swap_id = 0
self.input_ids_cpu = []
self.input_ids_np = []
self.input_positions_cpu = []
self.input_positions_np = []
self.slot_mapping_cpu = []
self.slot_mapping_np = []
self.prompt_context_lens_cpu = []
self.prompt_effective_query_lens_cpu = []
self.decode_context_lens_cpu = []
self.decode_context_lens_np = []
for _ in range(self.num_swaps):
self.input_ids_cpu.append(
torch.empty(self.max_num_tokens,
dtype=torch.int32,
device="cpu"))
self.input_ids_np.append(self.input_ids_cpu[-1].numpy())
def _prepare_prompt_inputs(
self.input_positions_cpu.append(
torch.empty(self.max_num_tokens,
dtype=torch.int32,
device="cpu"))
self.input_positions_np.append(
self.input_positions_cpu[-1].numpy())
self.slot_mapping_cpu.append(
torch.empty(self.max_num_tokens,
dtype=torch.int64,
device="cpu"))
self.slot_mapping_np.append(self.slot_mapping_cpu[-1].numpy())
self.prompt_context_lens_cpu.append(
torch.empty((1), dtype=torch.int32, device="cpu"))
self.prompt_effective_query_lens_cpu.append(
torch.empty((1), dtype=torch.int32, device="cpu"))
self.decode_context_lens_cpu.append(
torch.empty(self.max_num_tokens,
dtype=torch.int32,
device="cpu"))
self.decode_context_lens_np.append(
self.decode_context_lens_cpu[-1].numpy())
# Range tensor with values [0 .. self.max_num_tokens - 1].
# Used to initialize positions / context_lens / seq_lens
self.arange_np = np.arange(self.max_num_tokens, dtype=np.int32)
def swap_step(self):
self.cur_swap_id = (self.cur_swap_id + 1) % self.num_swaps
def _get_prompts_and_decodes(
self,
scheduler_output: "SchedulerOutput",
) -> PromptInputData:
) -> PromptDecodeInfo:
total_num_scheduled_tokens = scheduler_output.total_num_scheduled_tokens
assert total_num_scheduled_tokens > 0
num_reqs = self.input_batch.num_reqs
assert num_reqs > 0
req_ids = []
prompt_lens = []
input_tokens_list = []
input_positions_list = []
attn_metadata_list = []
for req_id in self.input_batch.req_ids[:num_reqs]:
assert req_id is not None
req_index = self.input_batch.req_id_to_index[req_id]
req_state = self.requests[req_id]
# Traverse decodes first
decode_req_ids = []
for i in range(num_reqs):
req_id = self.input_batch.req_ids[i]
num_computed_tokens = self.input_batch.num_computed_tokens_cpu[i]
num_prompt_tokens = self.input_batch.num_prompt_tokens[i]
num_scheduled_tokens = scheduler_output.num_scheduled_tokens[
req_id]
num_computed_tokens = req_state.num_computed_tokens
num_prompt_tokens = len(req_state.prompt_token_ids)
# Detect whether this is a prompt (can be full or chunked)
if num_computed_tokens >= num_prompt_tokens:
# This is a decode => Skip
continue
if num_computed_tokens < num_prompt_tokens:
# This is prompt
break
# This is a prompt
req_ids.append(req_id)
# This is decode
assert num_scheduled_tokens == 1
decode_req_ids.append(req_id)
# Prompt len
prompt_len = num_scheduled_tokens
prompt_lens.append(prompt_len)
padded_prompt_len = _get_padded_prefill_len(prompt_len)
assert padded_prompt_len <= self.max_model_len
# Traverse prompts
prompt_req_ids = []
prompt_scheduled_tokens = []
for i in range(len(decode_req_ids), num_reqs):
req_id = self.input_batch.req_ids[i]
# Seq len
seq_len = num_computed_tokens + prompt_len
num_computed_tokens = self.input_batch.num_computed_tokens_cpu[i]
num_prompt_tokens = self.input_batch.num_prompt_tokens[i]
num_scheduled_tokens = scheduler_output.num_scheduled_tokens[
req_id]
# Input tokens
input_tokens = torch.zeros((1, padded_prompt_len),
dtype=torch.int32,
device="cpu")
input_tokens[:, :prompt_len] = torch.from_numpy(
self.input_batch.token_ids_cpu[req_index,
num_computed_tokens:seq_len])
# input_tokens = torch.from_numpy(self.input_batch.token_ids_cpu[
# req_index, num_computed_tokens:padded_seq_len].reshape(1, -1))
# input_tokens[:, prompt_len:] = 0
input_tokens_list.append(input_tokens.to(self.device))
# Must be prompt
assert num_computed_tokens < num_prompt_tokens
# Input positions
input_positions = torch.zeros((1, padded_prompt_len),
dtype=torch.int32,
device="cpu")
input_positions[:, :
prompt_len] = self.prefill_input_positions[:,
num_computed_tokens:
seq_len]
# input_positions[:, prompt_len:] = 0
input_positions_list.append(input_positions.to(self.device))
prompt_req_ids.append(req_id)
prompt_scheduled_tokens.append(num_scheduled_tokens)
# Slot mapping
block_table_cpu_tensor = \
self.input_batch.block_table.get_cpu_tensor()
block_numbers = block_table_cpu_tensor[req_index,
input_positions //
self.block_size].reshape(
1, -1)
return PromptDecodeInfo(prompt_req_ids, decode_req_ids,
prompt_scheduled_tokens)
block_offsets = input_positions % self.block_size
slot_mapping = block_numbers * self.block_size + block_offsets
slot_mapping[:, prompt_len:] = _PAD_SLOT_ID
slot_mapping = slot_mapping.long()
def _prepare_prompt(self, req_index: int,
num_scheduled_tokens: int) -> PromptData:
num_computed_tokens = self.input_batch.num_computed_tokens_cpu[
req_index]
num_prompt_tokens = self.input_batch.num_prompt_tokens[req_index]
# Block table
block_table = None
if num_computed_tokens > 0:
block_table = block_table_cpu_tensor[req_index].unsqueeze(0)
block_table = block_table.to(self.device)
# Must be prompt
assert num_computed_tokens < num_prompt_tokens
# Context len
context_len = 0
if num_computed_tokens > 0:
context_len = seq_len
context_lens = torch.tensor([context_len],
dtype=torch.int32,
device="cpu")
# Prompt len
prompt_len = num_scheduled_tokens
padded_prompt_len = _get_padded_prompt_len(prompt_len)
assert padded_prompt_len <= self.max_model_len
# Effective query len
effective_query_lens = torch.tensor([prompt_len],
dtype=torch.int32,
device="cpu")
# Seq len
seq_len = num_computed_tokens + prompt_len
padded_seq_len = num_computed_tokens + padded_prompt_len
# Attn metadata
attn_metadata_list.append(
PallasMetadata(
num_prefills=1,
num_prefill_tokens=0, # NOTE: This is not used.
num_decode_tokens=0,
slot_mapping=slot_mapping.to(self.device),
multi_modal_placeholder_index_maps=None,
enable_kv_scales_calculation=True,
block_tables=block_table,
context_lens=context_lens.to(self.device),
effective_query_lens=effective_query_lens.to(self.device),
))
# DEBUG
# print("_prepare_prompt:")
# print(" prompt_len = {}".format(prompt_len))
# print(" padded_prompt_len = {}".format(padded_prompt_len))
# print(" num_computed_tokens = {}".format(num_computed_tokens))
# print(" num_prompt_tokens = {}".format(num_prompt_tokens))
# print(" seq_len = {}".format(seq_len))
# print(" padded_seq_len = {}".format(padded_seq_len))
# TODO: Remove this
# if num_computed_tokens > 0:
# print("-------------------")
# print("input_tokens.shape = {}".format(input_tokens.shape))
# print("input_positions.shape = {}".format(
# input_positions.shape))
# print("slot_mapping.shape = {}".format(slot_mapping.shape))
# print("block_table.shape = {}".format(block_table.shape))
# print("context_lens.shape = {} data = {}".format(
# context_lens.shape, context_lens))
# print("effective_query_lens.shape = {} data = {}".format(
# effective_query_lens.shape, effective_query_lens))
# Input tokens
input_tokens_cpu = self.input_batch.token_ids_cpu_tensor[
req_index, num_computed_tokens:padded_seq_len]
input_tokens_cpu[prompt_len:] = 0
return PromptInputData(
req_ids=req_ids,
prompt_lens=prompt_lens,
input_tokens=input_tokens_list,
input_positions=input_positions_list,
attn_metadata=attn_metadata_list,
# DEBUG
# print(" input_tokens_cpu.shape = {} val = {}".format(
# input_tokens_cpu.shape, input_tokens_cpu))
# Input positions
input_positions_np = self.input_positions_np[
self.cur_swap_id][:padded_prompt_len]
np.add(num_computed_tokens,
self.arange_np[:padded_prompt_len],
out=input_positions_np)
input_positions_np[prompt_len:] = 0
# DEBUG
# print(" input_positions_np.shape = {} val = {}".format(
# input_positions_np.shape, input_positions_np))
# Slot mapping
block_table_np = \
self.input_batch.block_table.get_numpy_array()
block_numbers_np = block_table_np[req_index, input_positions_np //
self.block_size]
block_offsets_np = input_positions_np % self.block_size
slot_mapping_np = self.slot_mapping_np[
self.cur_swap_id][:padded_prompt_len]
np.add(block_numbers_np * self.block_size,
block_offsets_np,
out=slot_mapping_np)
slot_mapping_np[prompt_len:] = _PAD_SLOT_ID
# DEBUG
# print(" slot_mapping_np.shape = {} val = {}".format(
# slot_mapping_np.shape, slot_mapping_np))
# Block table
block_table_cpu = None
if num_computed_tokens > 0:
block_table_cpu = self.input_batch.block_table.get_cpu_tensor()
block_table_cpu = block_table_cpu[req_index]
# DEBUG
# print(" block_table_cpu = {}".format(block_table_cpu))
# Context len
self.prompt_context_lens_cpu[self.cur_swap_id][0] = 0
if num_computed_tokens > 0:
self.prompt_context_lens_cpu[self.cur_swap_id][0] = seq_len
# Effective query len
self.prompt_effective_query_lens_cpu[self.cur_swap_id][0] = prompt_len
# Get final tensors
input_tokens = input_tokens_cpu.reshape(1, -1).to(self.device)
input_positions = self.input_positions_cpu[
self.cur_swap_id][:padded_prompt_len].reshape(1,
-1).to(self.device)
slot_mapping = self.slot_mapping_cpu[
self.cur_swap_id][:padded_prompt_len].reshape(1,
-1).to(self.device)
block_table = block_table_cpu.reshape(1, -1).to(
self.device) if block_table_cpu is not None else None
context_lens = self.prompt_context_lens_cpu[self.cur_swap_id].to(
self.device)
effective_query_lens = self.prompt_effective_query_lens_cpu[
self.cur_swap_id].to(self.device)
self.swap_step()
# DEBUG
# print(" input_tokens.shape = {} val = {}".format(
# input_tokens.shape, input_tokens))
# print(" input_positions.shape = {} val = {}".format(
# input_positions.shape, input_positions))
# print(" slot_mapping.shape = {} val = {}".format(
# slot_mapping.shape, slot_mapping))
# print(" block_table = {}".format(block_table))
# print(" context_lens.shape = {} val = {}".format(
# context_lens.shape, context_lens))
# print(" effective_query_lens.shape = {} val = {}".format(
# effective_query_lens.shape, effective_query_lens))
# Attn metadata
attn_metadata = PallasMetadata(
num_prefills=1,
num_prefill_tokens=0, # NOTE: This is not used.
num_decode_tokens=0,
slot_mapping=slot_mapping,
multi_modal_placeholder_index_maps=None,
enable_kv_scales_calculation=True,
block_tables=block_table,
context_lens=context_lens,
effective_query_lens=effective_query_lens,
)
def _prepare_decode_inputs(
return PromptData(input_tokens, input_positions, attn_metadata)
def _prepare_decode(
self,
scheduler_output: "SchedulerOutput",
) -> DecodeInputData:
total_num_scheduled_tokens = scheduler_output.total_num_scheduled_tokens
assert total_num_scheduled_tokens > 0
num_reqs = self.input_batch.num_reqs
assert num_reqs > 0
block_table_cpu_tensor = self.input_batch.block_table.get_cpu_tensor()
req_ids = []
req_indices = []
input_tokens = []
input_positions = []
slot_mapping = []
context_lens = []
for req_id in self.input_batch.req_ids[:num_reqs]:
assert req_id is not None
req_index = self.input_batch.req_id_to_index[req_id]
req_state = self.requests[req_id]
num_scheduled_tokens = scheduler_output.num_scheduled_tokens[
req_id]
num_computed_tokens = req_state.num_computed_tokens
num_prompt_tokens = len(req_state.prompt_token_ids)
# Detect whether this is a decode
if num_computed_tokens < num_prompt_tokens:
# This is a prompt => Skip
continue
# This is a decode
req_ids.append(req_id)
req_indices.append(req_index)
# Seq len
seq_len = num_computed_tokens + num_scheduled_tokens
# Sanity check decode
assert num_scheduled_tokens == 1
assert seq_len == req_state.num_tokens
# Input token
input_tokens.append([
self.input_batch.token_ids_cpu[req_index, num_computed_tokens]
])
# Position
input_positions.append([num_computed_tokens])
# Slot mapping
block_number = block_table_cpu_tensor[req_index,
num_computed_tokens //
self.block_size]
block_offset = num_computed_tokens % self.block_size
slot_id = block_number * self.block_size + block_offset
slot_mapping.append([slot_id])
# Context len
context_lens.append(seq_len)
# Compute padding
batch_size = len(input_tokens)
decode_req_ids: List[str],
) -> DecodeData:
# Batch size
batch_size = len(decode_req_ids)
padded_batch_size = _get_padded_batch_size(batch_size)
num_padding = padded_batch_size - batch_size
assert padded_batch_size <= self.max_model_len
# Add padding
input_tokens.extend([[0]] * num_padding)
input_positions.extend([[0]] * num_padding)
slot_mapping.extend([[_PAD_SLOT_ID]] * num_padding)
context_lens.extend([0] * num_padding)
req_indices.extend([0] * num_padding)
# Init [0 .. batch_size - 1]
req_indices_np = self.arange_np[:padded_batch_size]
# Create tensors
input_tokens_tensor = torch.tensor(input_tokens,
dtype=torch.int32,
device="cpu")
input_positions_tensor = torch.tensor(input_positions,
dtype=torch.int32,
device="cpu")
slot_mapping_tensor = torch.tensor(slot_mapping,
dtype=torch.int64,
device="cpu")
context_lens_tensor = torch.tensor(context_lens,
dtype=torch.int32,
device="cpu")
block_tables_tensor = block_table_cpu_tensor[req_indices]
# DEBUG
# print("_prepare_decode:")
# print(" batch_size = {}".format(batch_size))
# print(" padded_batch_size = {}".format(padded_batch_size))
# print(" req_indices_np.shape = {} val = {}".format(
# req_indices_np.shape, req_indices_np))
# Input positions
input_positions_np = self.input_positions_np[
self.cur_swap_id][:padded_batch_size]
np.add(self.input_batch.num_computed_tokens_cpu[:padded_batch_size],
0,
out=input_positions_np)
input_positions_np[batch_size:] = 0
input_positions_cpu = self.input_positions_cpu[
self.cur_swap_id][:padded_batch_size]
# DEBUG
# print(" input_positions_cpu.shape = {} data = {}".format(
# input_positions_cpu.shape, input_positions_cpu))
# Input tokens
token_indices_np = (
input_positions_np +
req_indices_np * self.input_batch.token_ids_cpu.shape[1])
input_tokens_cpu = self.input_ids_cpu[
self.cur_swap_id][:padded_batch_size]
torch.index_select(self.input_batch.token_ids_cpu_tensor.flatten(),
0,
torch.from_numpy(token_indices_np),
out=input_tokens_cpu)
input_tokens_cpu[batch_size:] = 0
# DEBUG
# print(" token_indices_np.shape = {} val = {}".format(
# token_indices_np.shape, token_indices_np))
# print(" input_tokens_cpu.shape = {} data = {}".format(
# input_tokens_cpu.shape, input_tokens_cpu))
# Slot mapping
block_table_indices_np = (
req_indices_np * self.max_num_blocks_per_req +
input_positions_np // self.block_size)
# DEBUG
# print(
# " block_table_indices_np.shape = {} data = {} max_num_blocks_per_req = {}"
# .format(block_table_indices_np.shape, block_table_indices_np,
# self.max_num_blocks_per_req))
block_table_cpu = self.input_batch.block_table.get_cpu_tensor()
# DEBUG
# print(" block_table_cpu.shape = {} data = {}".format(
# block_table_cpu.shape, block_table_cpu[:padded_batch_size, :10]))
block_numbers_np = block_table_cpu.flatten(
)[block_table_indices_np].numpy()
# DEBUG
# print(" block_numbers_np.shape = {} data = {}".format(
# block_numbers_np.shape, block_numbers_np))
block_offsets_np = input_positions_np % self.block_size
# DEBUG
# print(" block_offsets_np.shape = {} data = {}".format(
# block_offsets_np.shape, block_offsets_np))
slot_mapping_np = self.slot_mapping_np[
self.cur_swap_id][:padded_batch_size]
np.add(block_numbers_np * self.block_size,
block_offsets_np,
out=slot_mapping_np)
slot_mapping_np[batch_size:] = _PAD_SLOT_ID
# DEBUG
# print(" slot_mapping_np.shape = {} data = {}".format(
# slot_mapping_np.shape, slot_mapping_np))
block_table_cpu = block_table_cpu[:padded_batch_size]
# Context lens
context_lens_np = self.decode_context_lens_np[
self.cur_swap_id][:padded_batch_size]
np.add(self.input_batch.num_computed_tokens_cpu[:padded_batch_size],
1,
out=context_lens_np)
context_lens_np[batch_size:] = 0
# Get final tensors
input_tokens = input_tokens_cpu.reshape(-1, 1).to(self.device)
input_positions = input_positions_cpu.reshape(-1, 1).to(self.device)
slot_mapping = self.slot_mapping_cpu[
self.cur_swap_id][:padded_batch_size].reshape(-1,
1).to(self.device)
block_table = block_table_cpu.to(self.device)
context_lens = self.decode_context_lens_cpu[
self.cur_swap_id][:padded_batch_size].to(self.device)
self.swap_step()
# DEBUG
# print(" context_lens.shape = {} val = {}".format(
# context_lens.shape, context_lens))
# Attn metadata
attn_metadata = PallasMetadata(
num_prefills=0,
num_prefill_tokens=0,
num_decode_tokens=padded_batch_size,
slot_mapping=slot_mapping_tensor.to(self.device),
slot_mapping=slot_mapping,
multi_modal_placeholder_index_maps=None,
enable_kv_scales_calculation=True,
block_tables=block_tables_tensor.to(self.device),
context_lens=context_lens_tensor.to(self.device),
block_tables=block_table,
context_lens=context_lens,
effective_query_lens=None,
)
return DecodeInputData(
req_ids=req_ids,
input_tokens=input_tokens_tensor.to(self.device),
input_positions=input_positions_tensor.to(self.device),
attn_metadata=attn_metadata)
return DecodeData(input_tokens=input_tokens,
input_positions=input_positions,
attn_metadata=attn_metadata)
@torch.no_grad()
def execute_model(
@ -338,18 +440,82 @@ class TPUModelRunner(ModelRunnerBase):
# Update cached state
self.update_states(scheduler_output)
# Prepare inputs
prompt_data = self._prepare_prompt_inputs(scheduler_output)
decode_data = self._prepare_decode_inputs(scheduler_output)
# If necessary, swap decodes/prompts to have all decodes on the start
ensure_decodes_first(self.input_batch)
# Prepare prompts/decodes info
pd_info = self._get_prompts_and_decodes(scheduler_output)
# Init
num_reqs = self.input_batch.num_reqs
assert num_reqs > 0
sampled_token_ids_list = [0] * num_reqs
num_prompts = len(pd_info.prompt_req_ids)
num_decodes = len(pd_info.decode_req_ids)
decode_data = None
sampled_token_ids = [0] * self.input_batch.num_reqs
# Run each prompt individually
is_first = True
for i in range(num_prompts):
req_id = pd_info.prompt_req_ids[i]
req_index = num_decodes + i
assert req_index == self.input_batch.req_id_to_index[
req_id] # TODO: Remove
req_state = self.requests[req_id]
num_scheduled_tokens = pd_info.prompt_scheduled_tokens[i]
prompt_len = num_scheduled_tokens
seq_len = req_state.num_computed_tokens + num_scheduled_tokens
# Prepare first prompt
if is_first:
prompt_data = self._prepare_prompt(req_index,
num_scheduled_tokens)
is_first = False
# Run forward pass
with set_forward_context(prompt_data.attn_metadata,
self.vllm_config):
assert self.model is not None
selected_token_ids = self.model(prompt_data.input_tokens,
prompt_data.input_positions,
prompt_data.attn_metadata,
self.kv_caches)
# In parallel to TPU execution, prepare the next iteration
if i < num_prompts - 1:
# There is next prompt => prepare it
prompt_data = self._prepare_prompt(
req_index + 1, pd_info.prompt_scheduled_tokens[i + 1])
elif i == num_prompts - 1 and num_decodes > 0:
# There is next decode => prepare it
decode_data = self._prepare_decode(pd_info.decode_req_ids)
# Update cached state (if prompt is fully done)
if seq_len >= len(req_state.prompt_token_ids):
# Transfer sampled tokens from TPU to CPU
selected_token_ids_cpu = selected_token_ids.cpu()
# Get output token
token_id = selected_token_ids_cpu[prompt_len - 1].item()
sampled_token_ids[req_index] = token_id
# DEBUG
# print(
# " -- Got token_id = {} for prompt_len = {} req_id = {} req_index = {} selected_token_ids_cpu = {}"
# .format(token_id, prompt_len, req_id, req_index,
# selected_token_ids_cpu))
# Add output token to the request
self.input_batch.token_ids_cpu[req_index, seq_len] = token_id
self.input_batch.num_tokens[req_index] += 1
req_state.output_token_ids.append(token_id)
# Run decodes (a single batch)
if len(decode_data.req_ids) > 0:
# Forward
if num_decodes > 0:
# Prepare decode (if was not yet prepared)
if decode_data is None:
decode_data = self._prepare_decode(pd_info.decode_req_ids)
# Run forward pass
with set_forward_context(decode_data.attn_metadata,
self.vllm_config):
assert self.model is not None
@ -359,59 +525,31 @@ class TPUModelRunner(ModelRunnerBase):
self.kv_caches)
# Transfer sampled tokens from TPU to CPU
selected_token_ids_list = selected_token_ids.cpu().tolist()
decode_token_ids_cpu = selected_token_ids.cpu()
# Convert to list
decode_token_ids_list = decode_token_ids_cpu.tolist()
# Update cached state
for i, req_id in enumerate(decode_data.req_ids):
req_index = self.input_batch.req_id_to_index[req_id]
# Update cached state for each decode request
for i in range(num_decodes):
req_id = pd_info.decode_req_ids[i]
req_index = i
assert req_index == self.input_batch.req_id_to_index[
req_id] # TODO: Remove
req_state = self.requests[req_id]
seq_len = req_state.num_computed_tokens + 1
seq_len = (req_state.num_computed_tokens +
scheduler_output.num_scheduled_tokens[req_id])
token_id = selected_token_ids_list[i]
token_id = decode_token_ids_list[i]
sampled_token_ids[req_index] = token_id
self.input_batch.token_ids_cpu[req_index, seq_len] = token_id
self.input_batch.num_tokens[req_index] += 1
req_state.output_token_ids.append(token_id)
sampled_token_ids_list[req_index] = token_id
# Run each prompt
for (req_id, prompt_len, input_tokens, input_positions,
attn_metadata) in prompt_data.zipped():
assert req_id is not None
req_state = self.requests[req_id]
req_index = self.input_batch.req_id_to_index[req_id]
# Forward
with set_forward_context(attn_metadata, self.vllm_config):
assert self.model is not None
selected_token_ids = self.model(input_tokens, input_positions,
attn_metadata, self.kv_caches)
seq_len = (req_state.num_computed_tokens +
scheduler_output.num_scheduled_tokens[req_id])
if seq_len >= len(req_state.prompt_token_ids):
# Transfer sampled tokens from TPU to CPU
token_id = selected_token_ids.cpu()[prompt_len - 1].item()
sampled_token_ids_list[req_index] = token_id
# Update cached state
self.input_batch.token_ids_cpu[req_index, seq_len] = token_id
self.input_batch.num_tokens[req_index] += 1
req_state.output_token_ids.append(token_id)
# Get req_ids
assert all(
req_id is not None for req_id in
self.input_batch.req_ids[:num_reqs]), "req_ids contains None"
req_ids = cast(List[str], self.input_batch.req_ids[:num_reqs])
# Create output
model_runner_output = ModelRunnerOutput(
req_ids=req_ids,
req_ids=self.input_batch.req_ids,
req_id_to_index=self.input_batch.req_id_to_index,
sampled_token_ids=sampled_token_ids_list,
sampled_token_ids=sampled_token_ids,
logprob_token_ids_cpu=None,
logprobs_cpu=None,
)
@ -551,60 +689,81 @@ class TPUModelRunner(ModelRunnerBase):
torch._dynamo.mark_dynamic(attn_metadata.context_lens, 0)
torch._dynamo.mark_dynamic(attn_metadata.block_tables, 0)
# TODO: Remove the attn_metadata above
with set_forward_context(None, self.vllm_config):
with set_forward_context(attn_metadata, self.vllm_config, 0):
assert self.model is not None
self.model(token_ids, position_ids, None, kv_caches)
self.model(token_ids, position_ids, attn_metadata, kv_caches)
def capture_model(self) -> None:
"""Compile the model."""
logger.info("Compiling the model with different input shapes.")
# Capture prefill shapes
start = time.perf_counter()
# Prefill
logger.info(
"Compiling the model with different input shapes for prefill:")
start = time.time()
for batch_size in [1]:
seq_len = 16
while True:
self.dummy_run(self.kv_caches, batch_size, seq_len,
ExecutionMode.PREFILL)
while seq_len <= self.model_config.max_model_len:
self.dummy_run(self.kv_caches,
batch_size,
seq_len,
exec_mode=ExecutionMode.PREFILL)
xm.wait_device_ops()
logger.info(" -- batch_size: %d, seq_len: %d", batch_size,
logger.info(" batch_size: %d, seq_len: %d", batch_size,
seq_len)
if seq_len >= self.model_config.max_model_len:
break
num_tokens = batch_size * seq_len
if num_tokens >= self.scheduler_config.max_num_batched_tokens:
break
# Move to next seq_len
seq_len = seq_len * 2
end = time.perf_counter()
logger.info("Compilation for prefill shapes is done in %.2f [secs].",
end = time.time()
logger.info(" -- Compilation for prefill done in %.2f [secs].",
end - start)
# Capture decode shapes.
# Prefix prefill
if self.scheduler_config.enable_chunked_prefill:
logger.info("Compiling the model with different input shapes for "
"prefix prefill:")
start = time.time()
for batch_size in [1]:
seq_len = 16
while seq_len <= self.model_config.max_model_len:
self.dummy_run(self.kv_caches,
batch_size,
seq_len,
exec_mode=ExecutionMode.PREFIX_PREFILL)
xm.wait_device_ops()
logger.info(" batch_size: %d, seq_len: %d", batch_size,
seq_len)
num_tokens = batch_size * seq_len
if (num_tokens
>= self.scheduler_config.max_num_batched_tokens):
break
seq_len = seq_len * 2
end = time.time()
logger.info(
" -- Compilation for prefix prefill done in %.2f [secs].",
end - start)
# Decode
logger.info(
"Compiling the model with different input shapes for decode:")
start = time.time()
seq_len = 1
batch_size = 8 # Must be in sync with _get_padded_batch_size()
while True:
self.dummy_run(self.kv_caches, batch_size, seq_len,
ExecutionMode.DECODE)
self.dummy_run(self.kv_caches,
batch_size,
seq_len,
exec_mode=ExecutionMode.DECODE)
xm.wait_device_ops()
logger.info(" -- batch_size: %d, seq_len: %d, max_num_seqs = %d",
batch_size, seq_len,
self.scheduler_config.max_num_seqs)
logger.info(" batch_size: %d, seq_len: %d", batch_size, seq_len)
if batch_size >= self.scheduler_config.max_num_seqs:
break
batch_size = batch_size + 16 if batch_size >= 16 else batch_size * 2
end = time.time()
logger.info("Compilation for decode shapes is done in %.2f [secs].",
logger.info(" -- Compilation for decode done in %.2f [secs].",
end - start)
def initialize_kv_cache(self, kv_cache_config: KVCacheConfig) -> None:
@ -673,7 +832,7 @@ class ModelWrapperV1(nn.Module):
memory profiling at initialization.
"""
# Skip this in memory profiling at initialization.
if attn_metadata is not None:
if attn_metadata is not None and kv_caches[0][0].numel() > 0:
# index_copy_(slot_mapping) only works when the inserted dimension
# is 0. However, the KV cache in the Pallas backend has the shape
# [num_kv_heads, num_blocks, block_size, head_size]. To make it
@ -710,7 +869,7 @@ class ModelWrapperV1(nn.Module):
return argmax_token_ids
def _get_padded_prefill_len(x: int) -> int:
def _get_padded_prompt_len(x: int) -> int:
# NOTE(woosuk): The pallas FlashAttention kernel requires the sequence
# length to be a multiple of 16. We pad the prompt length to the nearest
# multiple of 16. This is also good for performance.

View File

@ -1,6 +1,6 @@
"""A TPU worker class."""
import os
from typing import Optional
from typing import Optional, Dict
import torch
import torch.distributed
@ -13,10 +13,13 @@ from vllm.distributed import (ensure_model_parallel_initialized,
init_distributed_environment)
from vllm.logger import init_logger
from vllm.model_executor import set_random_seed
from vllm.v1.kv_cache_interface import FullAttentionSpec
from vllm.v1.attention.backends.pallas import PallasAttentionBackend
from vllm.v1.core.scheduler import SchedulerOutput
from vllm.v1.outputs import ModelRunnerOutput
from vllm.v1.worker.tpu_model_runner import ExecutionMode, TPUModelRunner
from vllm.v1.worker.worker_base import WorkerBase
from vllm.v1.utils import bind_kv_cache
logger = init_logger(__name__)
@ -74,20 +77,29 @@ class TPUWorker(WorkerBase):
def determine_available_memory(self) -> int:
assert self.model_runner is not None
num_layers = self.model_config.get_num_layers(self.parallel_config)
kv_caches: Dict[str, torch.Tensor] = {}
kv_cache_spec = self.model_runner.get_kv_cache_spec()
for layer_name, layer_spec in kv_cache_spec.items():
if isinstance(layer_spec, FullAttentionSpec):
dtype = layer_spec.dtype
# use an empty tensor instead of `None`` to force Dynamo to pass
# it by reference, rather by specializing on the value ``None``.
# the `dtype` argument does not matter, and we use `float32` as
# a placeholder (it has wide hardware support).
kv_caches = [(torch.tensor([], dtype=torch.float32,
device=self.device),
torch.tensor([], dtype=torch.float32,
device=self.device))
for _ in range(num_layers)]
# Use an empty tensor instead of `None`` to force Dynamo to pass
# it by reference, rather by specializing on the value ``None``.
tpu_k_cache = torch.tensor([], dtype=dtype, device=self.device)
tpu_v_cache = torch.tensor([], dtype=dtype, device=self.device)
kv_caches[layer_name] = (tpu_k_cache, tpu_v_cache)
else:
raise NotImplementedError
runner_kv_caches = []
bind_kv_cache(
kv_caches,
self.vllm_config.compilation_config.static_forward_context,
runner_kv_caches)
self.model_runner.dummy_run(
kv_caches,
runner_kv_caches,
num_tokens=1,
seq_len=self.scheduler_config.max_num_batched_tokens,
exec_mode=ExecutionMode.PREFILL,