231 lines
8.6 KiB
C++
231 lines
8.6 KiB
C++
/***************************************************************************************************
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* Copyright (c) 2017 - 2023 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 Basic include for CUTLASS.
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*/
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#pragma once
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////////////////////////////////////////////////////////////////////////////////////////////////////
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#ifdef CUTLASS_NAMESPACE
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#define concat_tok(a, b) a ## b
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#define mkcutlassnamespace(pre, ns) concat_tok(pre, ns)
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#define cutlass mkcutlassnamespace(cutlass_, CUTLASS_NAMESPACE)
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#endif
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////////////////////////////////////////////////////////////////////////////////////////////////////
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#if defined(__NVCC__) || (defined(__clang__) && defined(__CUDA__))
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#define CUTLASS_HOST_DEVICE __forceinline__ __device__ __host__
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#define CUTLASS_DEVICE __forceinline__ __device__
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#elif defined(__CUDACC_RTC__)
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#define CUTLASS_HOST_DEVICE __forceinline__ __device__
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#define CUTLASS_DEVICE __forceinline__ __device__
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#else
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#define CUTLASS_HOST_DEVICE inline
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#define CUTLASS_DEVICE inline
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#endif
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////////////////////////////////////////////////////////////////////////////////////////////////////
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template<typename T>
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CUTLASS_HOST_DEVICE void __CUTLASS_UNUSED(T const &)
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{ }
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#if defined(__GNUC__)
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#define CUTLASS_UNUSED(expr) __CUTLASS_UNUSED(expr)
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#else
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#define CUTLASS_UNUSED(expr) do { ; } while (&expr != &expr)
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#endif
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#ifdef _MSC_VER
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// Provides support for alternative operators 'and', 'or', and 'not'
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#include <iso646.h>
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#endif // _MSC_VER
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#if !defined(__CUDACC_RTC__)
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#include <assert.h>
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#endif
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#if defined(__CUDA_ARCH__)
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#if defined(_MSC_VER)
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#define CUTLASS_NOT_IMPLEMENTED() { printf("%s not implemented\n", __FUNCSIG__); asm volatile ("brkpt;\n"); }
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#else
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#define CUTLASS_NOT_IMPLEMENTED() { printf("%s not implemented\n", __PRETTY_FUNCTION__); asm volatile ("brkpt;\n"); }
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#endif
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#else
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#if defined(_MSC_VER)
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#define CUTLASS_NOT_IMPLEMENTED() assert(0 && __FUNCSIG__)
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#else
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#define CUTLASS_NOT_IMPLEMENTED() assert(0 && __PRETTY_FUNCTION__)
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#endif
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#endif
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////////////////////////////////////////////////////////////////////////////////////////////////////
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namespace cutlass {
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/// Status code returned by CUTLASS operations
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enum class Status {
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kSuccess, ///< Operation was successful.
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kErrorMisalignedOperand, ///< operands fail alignment requirements.
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kErrorInvalidDataType, ///< DataType fails requirement.
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kErrorInvalidLayout, ///< Layout fails alignment requirement.
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kErrorInvalidProblem, ///< Specified problem size is not supported by operator.
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kErrorNotSupported, ///< Operation is not supported on current device.
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kErrorWorkspaceNull, ///< The given workspace is null when it is required to be non-null.
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kErrorInternal, ///< An error within CUTLASS occurred.
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kErrorArchMismatch, ///< CUTLASS runs on a device that it was not compiled for.
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kErrorInsufficientDriver, ///< CUTLASS runs with a driver that is too old.
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kErrorMemoryAllocation, ///< Kernel launch failed due to insufficient device memory.
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kInvalid ///< Status is unspecified.
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};
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/// Convert cutlass status to status strings
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CUTLASS_HOST_DEVICE
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static char const* cutlassGetStatusString(cutlass::Status status) {
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switch (status) {
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case cutlass::Status::kSuccess:
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return "Success";
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case cutlass::Status::kErrorMisalignedOperand:
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return "Error Misaligned Operand";
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case cutlass::Status::kErrorInvalidDataType:
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return "Error Invalid Data Type";
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case cutlass::Status::kErrorInvalidLayout:
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return "Error Invalid Layout";
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case cutlass::Status::kErrorInvalidProblem:
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return "Error Invalid Problem";
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case cutlass::Status::kErrorNotSupported:
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return "Error Not Supported";
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case cutlass::Status::kErrorWorkspaceNull:
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return "Error Workspace Null";
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case cutlass::Status::kErrorInternal:
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return "Error Internal";
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case cutlass::Status::kErrorInsufficientDriver:
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return "Error Insufficient Driver";
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case cutlass::Status::kErrorArchMismatch:
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return "Error Architecture Mismatch";
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case cutlass::Status::kErrorMemoryAllocation:
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return "Error Memory Allocation failed";
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case cutlass::Status::kInvalid: break;
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}
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return "Invalid status";
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}
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////////////////////////////////////////////////////////////////////////////////////////////////////
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#ifndef CUTLASS_CONV_UNIT_TEST_RIGOROUS_SIZE_ENABLED
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#define CUTLASS_CONV_UNIT_TEST_RIGOROUS_SIZE_ENABLED 0
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#endif
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// CUDA 10.1 introduces the mma instruction
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#if !defined(CUTLASS_ENABLE_TENSOR_CORE_MMA)
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#define CUTLASS_ENABLE_TENSOR_CORE_MMA 0
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#endif
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////////////////////////////////////////////////////////////////////////////////////////////////////
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#define CUTLASS_ASSERT(x) assert(x)
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////////////////////////////////////////////////////////////////////////////////////////////////////
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// CUTLASS_PRAGMA_(UNROLL|NO_UNROLL) optimization directives for the CUDA compiler.
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#if defined(__CUDA_ARCH__) && !defined(__INTELLISENSE__)
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#if defined(__CUDACC_RTC__) || (defined(__clang__) && defined(__CUDA__))
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#define CUTLASS_PRAGMA_UNROLL _Pragma("unroll")
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#define CUTLASS_PRAGMA_NO_UNROLL _Pragma("unroll 1")
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#else
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#define CUTLASS_PRAGMA_UNROLL #pragma unroll
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#define CUTLASS_PRAGMA_NO_UNROLL #pragma unroll 1
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#endif
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#define CUTLASS_GEMM_LOOP CUTLASS_PRAGMA_NO_UNROLL
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#else
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#define CUTLASS_PRAGMA_UNROLL
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#define CUTLASS_PRAGMA_NO_UNROLL
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#define CUTLASS_GEMM_LOOP
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#endif
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////////////////////////////////////////////////////////////////////////////////////////////////////
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static const int NumThreadsPerWarp = 32;
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static const int NumThreadsPerWarpGroup = 128;
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static const int NumThreadsPerHalfWarp = NumThreadsPerWarp / 2;
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static const int NumThreadsPerQuad = 4;
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static const int NumThreadsPerQuadPair = NumThreadsPerQuad * 2;
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////////////////////////////////////////////////////////////////////////////////////////////////////
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/// Helper function to return true when called by thread 0 of threadblock 0.
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CUTLASS_HOST_DEVICE bool thread0() {
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#if defined(__CUDA_ARCH__)
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return (!threadIdx.x && !threadIdx.y && !threadIdx.z) && (!blockIdx.x && !blockIdx.y && !blockIdx.z);
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#else
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return false;
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#endif
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}
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/// Returns a warp-uniform value indicating the canonical warp index of the calling threads.
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/// Threads within the warp must be converged.
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CUTLASS_DEVICE
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int canonical_warp_idx() {
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#if defined(__CUDA_ARCH__)
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return __shfl_sync(0xffffffff, threadIdx.x / NumThreadsPerWarp, 0);
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#else
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return 0;
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#endif
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}
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/// Returns a warp-uniform value indicating the canonical warp group index of the calling threads.
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/// Threads within the warp must be converged.
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CUTLASS_DEVICE
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int canonical_warp_group_idx() {
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#if defined(__CUDA_ARCH__)
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return __shfl_sync(0xffffffff, threadIdx.x / NumThreadsPerWarpGroup, 0);
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#else
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return 0;
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#endif
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}
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////////////////////////////////////////////////////////////////////////////////////////////////////
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} // namespace cutlass
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////////////////////////////////////////////////////////////////////////////////////////////////////
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