cutlass/tools/test/perf/gemm/cutlass_dispatch.h

149 lines
5.0 KiB
C
Raw Normal View History

2018-05-17 02:44:56 +08:00
/***************************************************************************************************
* Copyright (c) 2017-2018, NVIDIA CORPORATION. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are permitted
* provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
* * 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.
* * Neither the name of the NVIDIA CORPORATION 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 NVIDIA CORPORATION 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 TOR (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
**************************************************************************************************/
#pragma once
template <typename Gemm_,
typename Index_,
typename ScalarA_,
typename ScalarB_,
typename ScalarC_,
typename ScalarD_,
typename Compute_,
typename ScalarEpilogue_,
bool ThreadMultiplyAdd_>
struct CutlassDispatch {
typedef typename Gemm_::Params Params;
typedef Gemm_ Gemm;
typedef Index_ Index;
typedef ScalarA_ ScalarA;
typedef ScalarB_ ScalarB;
typedef ScalarC_ ScalarC;
typedef ScalarD_ ScalarD;
typedef Compute_ Compute;
typedef ScalarEpilogue_ ScalarEpilogue;
static bool const kThreadMultiplyAdd = ThreadMultiplyAdd_;
static cutlass::MatrixLayout::Kind const kLayoutA = Gemm::Traits::kLayoutA;
static cutlass::MatrixLayout::Kind const kLayoutB = Gemm::Traits::kLayoutB;
//
// Data members
//
/// Params argument
Params params;
//
// Methods
//
CutlassDispatch() {}
/// Initializes params object
CutlassDispatch(Index m,
Index n,
Index k,
ScalarEpilogue alpha,
ScalarA const* d_a,
Index lda,
ScalarB const* d_b,
Index ldb,
ScalarEpilogue beta,
ScalarC const* d_c,
Index ldc,
ScalarD* d_d,
Index ldd) {
params.initialize(m, n, k, alpha, d_a, lda, d_b, ldb, beta, d_c, ldc, d_d, ldd);
}
/// Initializes params object
CutlassDispatch(Params const& _params) : params(_params) {}
/// Launches kernel
cudaError_t operator()() { return Gemm::launch(params); }
/// Determines if problem is aligned (assuming no padding)
static bool is_problem_aligned(
int m,
int n,
int k) {
bool aligned = true;
if (kLayoutA == cutlass::MatrixLayout::kColumnMajor) {
aligned = aligned && !(m % Gemm::Traits::GemmConfig::kScalarsPerLdgA);
}
else {
aligned = aligned && !(k % Gemm::Traits::GemmConfig::kScalarsPerLdgA);
}
if (kLayoutB == cutlass::MatrixLayout::kColumnMajor) {
aligned = aligned && !(k % Gemm::Traits::GemmConfig::kScalarsPerLdgB);
}
else {
aligned = aligned && !(n % Gemm::Traits::GemmConfig::kScalarsPerLdgB);
}
aligned = aligned && !(m % Gemm::Traits::GemmConfig::kScalarsPerLdgC);
return aligned;
}
};
/// Basic dispatcher inferred from GEMM traits
template <typename Traits>
struct CutlassDispatchBasic {
/// Gemm kernel
typedef cutlass::gemm::Gemm<Traits> Gemm;
/// Index type
typedef typename Traits::Index Index;
/// The scalar for A.
typedef typename Traits::ScalarA ScalarA;
/// The scalar for B.
typedef typename Traits::ScalarB ScalarB;
/// The scalar for C.
typedef typename Traits::ScalarC ScalarC;
/// The scalar for D.
typedef typename Traits::ScalarD ScalarD;
// TODO - support alternative accumulator and scalar types
typedef ScalarD Compute;
typedef Compute ScalarEpilogue;
typedef CutlassDispatch<Gemm,
Index,
ScalarA,
ScalarB,
ScalarC,
ScalarD,
Compute,
ScalarEpilogue,
true>
Dispatch;
};