137 lines
5.2 KiB
C++
137 lines
5.2 KiB
C++
/***************************************************************************************************
|
|
* Copyright (c) 2017 - 2022 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright notice, this
|
|
* list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
*
|
|
* 3. Neither the name of the copyright holder nor the names of its
|
|
* contributors may be used to endorse or promote products derived from
|
|
* this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
|
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
|
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
**************************************************************************************************/
|
|
/*! \file
|
|
\brief Matrix multiply
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#if defined(__CUDACC_RTC__)
|
|
#include <cuda/std/cassert>
|
|
#else
|
|
#include <assert.h>
|
|
#endif
|
|
#include "cutlass/layout/matrix.h"
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
namespace cutlass {
|
|
namespace arch {
|
|
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// WMMA template structure defines nvcuda::wmma::fragments and static assert for
|
|
// wmma native instruction sizes supported for half
|
|
//
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
template <
|
|
typename Shape_,
|
|
typename LayoutA_,
|
|
typename LayoutB_,
|
|
typename ElementC_,
|
|
typename LayoutC_>
|
|
struct Wmma<
|
|
Shape_, ///< Size of the matrix product (concept: GemmShape)
|
|
cutlass::half_t, ///< ElementA
|
|
LayoutA_, ///< LayoutA
|
|
cutlass::half_t, ///< ElementB
|
|
LayoutB_, ///< LayoutB
|
|
ElementC_, ///< ElementC
|
|
LayoutC_, ///< LayoutC
|
|
cutlass::arch::OpMultiplyAdd ///< Operator (multiply-add, xor.popc)
|
|
> {
|
|
|
|
#if defined(CUTLASS_ARCH_WMMA_SM70_ENABLED)
|
|
using Shape = Shape_;
|
|
using ElementA = cutlass::half_t;
|
|
using LayoutA = LayoutA_;
|
|
using ElementB = cutlass::half_t;
|
|
using LayoutB = LayoutB_;
|
|
using ElementC = ElementC_;
|
|
using LayoutC = LayoutC_;
|
|
using Operator = cutlass::arch::OpMultiplyAdd;
|
|
using ArchTag = arch::Sm70;
|
|
|
|
// check supported wmma shape for the given multiplicand data types
|
|
static_assert(
|
|
platform::is_same<cutlass::gemm::GemmShape<16, 16, 16>, Shape>::value ||
|
|
platform::is_same<cutlass::gemm::GemmShape< 8, 32, 16>, Shape>::value ||
|
|
platform::is_same<cutlass::gemm::GemmShape<32, 8, 16>, Shape>::value,
|
|
"Supported list of wmma operator shape for f16 multiplicands are: 16x16x16, 8x32x16, and 32x8x16");
|
|
|
|
// check supported wmma output data type for the given multiplicand data types
|
|
static_assert(
|
|
platform::is_same<cutlass::half_t, ElementC>::value || platform::is_same<float, ElementC>::value,
|
|
"Supported of wmma output data type for f16 multiplicands are: f16 and f32");
|
|
|
|
// Wmma Fragment
|
|
using FragmentA = nvcuda::wmma::fragment<
|
|
nvcuda::wmma::matrix_a,
|
|
Shape::kM,
|
|
Shape::kN,
|
|
Shape::kK,
|
|
typename CutlassToWmmaDataType<ElementA>::Type,
|
|
typename CutlassToWmmaLayout<LayoutA>::Layout>;
|
|
|
|
using FragmentB = nvcuda::wmma::fragment<
|
|
nvcuda::wmma::matrix_b,
|
|
Shape::kM,
|
|
Shape::kN,
|
|
Shape::kK,
|
|
typename CutlassToWmmaDataType<ElementB>::Type,
|
|
typename CutlassToWmmaLayout<LayoutB>::Layout>;
|
|
|
|
using FragmentC = nvcuda::wmma::fragment<
|
|
nvcuda::wmma::accumulator,
|
|
Shape::kM,
|
|
Shape::kN,
|
|
Shape::kK,
|
|
typename CutlassToWmmaDataType<ElementC>::Type>;
|
|
|
|
/// Performs a nvcuda::wmma matrix multiply-accumulate operation
|
|
CUTLASS_DEVICE
|
|
void operator()(
|
|
FragmentC &D,
|
|
FragmentA const &A,
|
|
FragmentB const &B,
|
|
FragmentC const &C) const {
|
|
|
|
nvcuda::wmma::mma_sync(D, A, B, C);
|
|
}
|
|
#else
|
|
static_assert(false, "wmma.mma.sync for floating point multiplicands is avialable only for SM70 and beyond");
|
|
#endif
|
|
|
|
};
|
|
|
|
} // namespace arch
|
|
} // namespace cutlass
|