cc3c29a81a
* v3.6 * update changelog * update readme * fix typo * fixing typos * hopper gemm with weight prefetch --------- Co-authored-by: yuzhai <yuzhai@nvidia.com> Co-authored-by: Haicheng Wu <haichengw@nvidia.com>
142 lines
4.9 KiB
C++
142 lines
4.9 KiB
C++
/***************************************************************************************************
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* Copyright (c) 2017 - 2024 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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**************************************************************************************************/
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/*! \file
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\brief Defines structures and helpers to launch CUDA kernels within CUTLASS.
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*/
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#pragma once
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#include <cuda_runtime_api.h>
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#include "cutlass/cutlass.h"
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#include "cutlass/trace.h"
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namespace cutlass {
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/// Structure containing the basic launch configuration of a CUDA kernel.
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struct KernelLaunchConfiguration {
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/// CUDA grid dimensions
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dim3 grid;
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/// CUDA threablock dimensions
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dim3 block;
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/// Bytes of dynamically allocated SMEM in addition to static SMEM
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size_t dynamic_smem;
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//
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// Methods
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//
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/// Constructs a KernellaunchConfiguration object
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CUTLASS_HOST_DEVICE
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KernelLaunchConfiguration(
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dim3 _grid = dim3(1,1,1),
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dim3 _block = dim3(1,1,1),
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size_t _dynamic_smem = 0
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):
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grid(_grid),
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block(_block),
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dynamic_smem(_dynamic_smem) { }
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};
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template <typename GemmKernel, typename Params>
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Status kernel_launch(
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dim3 const grid_dims,
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dim3 const block_dims,
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size_t const smem_size,
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cudaStream_t cuda_stream,
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const Params &kernel_params,
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bool launch_with_pdl) {
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#if (CUTLASS_DEBUG_TRACE_LEVEL > 1)
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CUTLASS_TRACE_HOST("cutlass::kernel_launch");
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#endif
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if (not launch_with_pdl) {
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#if (CUTLASS_DEBUG_TRACE_LEVEL > 1)
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CUTLASS_TRACE_HOST("cutlass::kernel_launch: No PDL");
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#endif
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device_kernel<GemmKernel><<<grid_dims, block_dims, smem_size, cuda_stream>>>(kernel_params);
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}
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else {
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#if ((__CUDACC_VER_MAJOR__ >= 12) || ((__CUDACC_VER_MAJOR__ == 11) && (__CUDACC_VER_MINOR__ >= 8)))
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if constexpr (GemmKernel::ArchTag::kMinComputeCapability < 90) {
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CUTLASS_TRACE_HOST(" Programmatic dependent launch (PDL) is only supported for SM90.");
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return Status::kInvalid;
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}
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cudaLaunchConfig_t config;
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cudaLaunchAttribute attrs[1];
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config.gridDim = grid_dims;
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config.blockDim = block_dims;
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config.dynamicSmemBytes = smem_size;
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config.stream = cuda_stream;
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config.attrs = attrs;
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attrs[0].id = cudaLaunchAttributeProgrammaticStreamSerialization;
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attrs[0].val.programmaticStreamSerializationAllowed = 1;
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config.numAttrs = 1;
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#if (CUTLASS_DEBUG_TRACE_LEVEL > 1)
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CUTLASS_TRACE_HOST("cutlass::kernel_launch: Calling cudaLaunchKernelEx");
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#endif
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cudaError_t launch_result = cudaLaunchKernelEx(&config, &device_kernel<GemmKernel>, kernel_params);
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if (cudaSuccess != launch_result) {
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CUTLASS_TRACE_HOST("cutlass::kernel_launch: cudaLaunchKernelEx failed with error: " << cudaGetErrorString(launch_result));
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return Status::kErrorInternal;
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}
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#else
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CUTLASS_TRACE_HOST(" Programmatic dependent launch (PDL) is only supported starting CUDA 11.8.");
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return Status::kInvalid;
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#endif
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}
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cudaError_t result = cudaGetLastError();
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if (cudaSuccess == result) {
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#if (CUTLASS_DEBUG_TRACE_LEVEL > 1)
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CUTLASS_TRACE_HOST("cutlass::kernel_launch: cudaGetLastError reports success");
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#endif
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return Status::kSuccess;
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}
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else {
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CUTLASS_TRACE_HOST(" Kernel launch failed. Reason: " << result);
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return Status::kErrorInternal;
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}
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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} // namespace cutlass
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