202 lines
7.4 KiB
C++
202 lines
7.4 KiB
C++
/***************************************************************************************************
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* Copyright (c) 2017-2020, NVIDIA CORPORATION. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification, are permitted
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* provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright notice, this list of
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* conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright notice, this list of
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* conditions and the following disclaimer in the documentation and/or other materials
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* provided with the distribution.
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* * Neither the name of the NVIDIA CORPORATION nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL NVIDIA CORPORATION BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TOR (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 Matrix multiply
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*/
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#pragma once
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#if defined(__CUDACC_RTC__)
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#include <cuda/std/cassert>
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#else
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#include <assert.h>
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#endif
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#include "cutlass/layout/matrix.h"
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////////////////////////////////////////////////////////////////////////////////
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namespace cutlass {
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namespace arch {
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////////////////////////////////////////////////////////////////////////////////
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//
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// WMMA template structure defines nvcuda::wmma::fragments and static assert for
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// wmma native instruction sizes supported for cutlass::int4b_t (experimental::s4).
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//
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////////////////////////////////////////////////////////////////////////////////
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template <
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typename Shape_,
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typename LayoutA_,
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typename LayoutB_,
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typename LayoutC_>
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struct Wmma<
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Shape_, ///< Size of the matrix product (concept: GemmShape)
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cutlass::int4b_t, ///< ElementA
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LayoutA_, ///< LayoutA
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cutlass::int4b_t, ///< ElementB
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LayoutB_, ///< LayoutB
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int32_t, ///< ElementC
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LayoutC_, ///< LayoutC
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cutlass::arch::OpMultiplyAdd ///< Operator (multiply-add, xor.popc)
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> {
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#if defined(CUTLASS_ARCH_WMMA_SM75_ENABLED)
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using Shape = Shape_;
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using ElementA = cutlass::int4b_t;
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using LayoutA = LayoutA_;
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using ElementB = cutlass::int4b_t;
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using LayoutB = LayoutB_;
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using ElementC = int32_t;
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using LayoutC = LayoutC_;
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using Operator = cutlass::arch::OpMultiplyAdd;
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using ArchTag = arch::Sm75;
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// check supported wmma shape for the given multiplicand data types
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static_assert(
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platform::is_same<cutlass::gemm::GemmShape<8, 8, 32>, Shape>::value,
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"Supported list of wmma operator shape for s8 multiplicands is: 8x8x32");
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// Wmma Fragment
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using FragmentA = nvcuda::wmma::fragment<
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nvcuda::wmma::matrix_a,
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Shape::kM,
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Shape::kN,
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Shape::kK,
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typename CutlassToWmmaDataType<ElementA>::Type,
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typename CutlassToWmmaLayout<LayoutA>::Layout>;
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using FragmentB = nvcuda::wmma::fragment<
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nvcuda::wmma::matrix_b,
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Shape::kM,
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Shape::kN,
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Shape::kK,
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typename CutlassToWmmaDataType<ElementB>::Type,
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typename CutlassToWmmaLayout<LayoutB>::Layout>;
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using FragmentC = nvcuda::wmma::fragment<
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nvcuda::wmma::accumulator,
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Shape::kM,
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Shape::kN,
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Shape::kK,
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typename CutlassToWmmaDataType<ElementC>::Type>;
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/// Performs a nvcuda::wmma matrix multiply-accumulate operation
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CUTLASS_DEVICE
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void operator()(
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FragmentC &D,
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FragmentA const &A,
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FragmentB const &B,
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FragmentC const &C) const {
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nvcuda::wmma::mma_sync(D, A, B, C);
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}
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#else
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static_assert(false, "wmma.mma.sync interger type multiplicands is avialable only for SM75 and beyond");
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#endif
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};
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////////////////////////////////////////////////////////////////////////////////
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//
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// WMMA template structure defines nvcuda::wmma::fragments and static assert for
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// wmma native instruction sizes supported for cutlass::uint1b_t (experimental::b1).
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//
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////////////////////////////////////////////////////////////////////////////////
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template <
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typename Shape_,
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typename LayoutA_,
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typename LayoutB_,
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typename LayoutC_>
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struct Wmma<
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Shape_, ///< Size of the matrix product (concept: GemmShape)
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cutlass::uint1b_t, ///< ElementA
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LayoutA_, ///< LayoutA
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cutlass::uint1b_t, ///< ElementB
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LayoutB_, ///< LayoutB
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int32_t, ///< ElementC
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LayoutC_, ///< LayoutC
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cutlass::arch::OpXorPopc ///< Operator (multiply-add, xor.popc)
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> {
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#if defined(CUTLASS_ARCH_WMMA_SM75_ENABLED)
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using Shape = Shape_;
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using ElementA = cutlass::uint1b_t;
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using LayoutA = LayoutA_;
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using ElementB = cutlass::uint1b_t;
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using LayoutB = LayoutB_;
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using ElementC = int32_t;
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using LayoutC = LayoutC_;
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using Operator = cutlass::arch::OpXorPopc;
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using ArchTag = arch::Sm75;
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// check supported wmma shape for the given multiplicand data types
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static_assert(
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platform::is_same<cutlass::gemm::GemmShape<8, 8, 128>, Shape>::value,
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"Supported list of wmma operator shape for b1 multiplicands is: 8x8x128");
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// Wmma Fragment
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using FragmentA = nvcuda::wmma::fragment<
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nvcuda::wmma::matrix_a,
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Shape::kM,
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Shape::kN,
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Shape::kK,
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typename CutlassToWmmaDataType<ElementA>::Type,
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typename CutlassToWmmaLayout<LayoutA>::Layout>;
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using FragmentB = nvcuda::wmma::fragment<
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nvcuda::wmma::matrix_b,
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Shape::kM,
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Shape::kN,
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Shape::kK,
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typename CutlassToWmmaDataType<ElementB>::Type,
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typename CutlassToWmmaLayout<LayoutB>::Layout>;
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using FragmentC = nvcuda::wmma::fragment<
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nvcuda::wmma::accumulator,
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Shape::kM,
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Shape::kN,
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Shape::kK,
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typename CutlassToWmmaDataType<ElementC>::Type>;
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/// Performs a nvcuda::wmma matrix multiply-accumulate operation
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CUTLASS_DEVICE
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void operator()(
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FragmentC &D,
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FragmentA const &A,
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FragmentB const &B,
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FragmentC const &C) const {
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nvcuda::wmma::bmma_sync(D, A, B, C, nvcuda::wmma::experimental::bmmaBitOpXOR,
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nvcuda::wmma::experimental::bmmaAccumulateOpPOPC);
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}
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#else
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static_assert(false, "wmma.mma.sync interger type multiplicands is avialable only for SM75 and beyond");
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#endif
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};
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} // namespace arch
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} // namespace cutlass
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