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// =================================================================================================
// This file is part of the CLBlast project. The project is licensed under the MIT license. This
// project loosely follows the Google C++ styleguide and uses a tab-size of two spaces and a max-
// width of 100 characters per line.
//
// Author(s):
// Cedric Nugteren <www.cedricnugteren.nl>
//
// This file implements a class with static methods to describe the Xgemm routine. Examples of
// such 'descriptions' are how to calculate the size a of buffer or how to run the routine. These
// static methods are used by the correctness tester and the performance tester.
//
// =================================================================================================
#ifndef CLBLAST_TEST_ROUTINES_XGEMM_H_
#define CLBLAST_TEST_ROUTINES_XGEMM_H_
#include <vector>
#include <string>
#include "wrapper_clblas.h"
namespace clblast {
// =================================================================================================
// See comment at top of file for a description of the class
template <typename T>
class TestXgemm {
public:
// The list of arguments relevant for this routine
static std::vector<std::string> GetOptions() {
return {kArgM, kArgN, kArgK,
kArgLayout, kArgATransp, kArgBTransp,
kArgALeadDim, kArgBLeadDim, kArgCLeadDim,
kArgAOffset, kArgBOffset, kArgCOffset,
kArgAlpha, kArgBeta};
}
// Describes how to obtain the sizes of the buffers
static size_t GetSizeA(const Arguments<T> &args) {
auto a_rotated = (args.layout == Layout::kColMajor && args.a_transpose != Transpose::kNo) ||
(args.layout == Layout::kRowMajor && args.a_transpose == Transpose::kNo);
auto a_two = (a_rotated) ? args.m : args.k;
return a_two * args.a_ld + args.a_offset;
}
static size_t GetSizeB(const Arguments<T> &args) {
auto b_rotated = (args.layout == Layout::kColMajor && args.b_transpose != Transpose::kNo) ||
(args.layout == Layout::kRowMajor && args.b_transpose == Transpose::kNo);
auto b_two = (b_rotated) ? args.k : args.n;
return b_two * args.b_ld + args.b_offset;
}
static size_t GetSizeC(const Arguments<T> &args) {
auto c_rotated = (args.layout == Layout::kRowMajor);
auto c_two = (c_rotated) ? args.m : args.n;
return c_two * args.c_ld + args.c_offset;
}
// Describes how to run the CLBlast routine
static StatusCode RunRoutine(const Arguments<T> &args, const Buffers &buffers,
CommandQueue &queue) {
auto queue_plain = queue();
auto event = cl_event{};
auto status = Gemm(args.layout, args.a_transpose, args.b_transpose,
args.m, args.n, args.k, args.alpha,
buffers.a_mat(), args.a_offset, args.a_ld,
buffers.b_mat(), args.b_offset, args.b_ld, args.beta,
buffers.c_mat(), args.c_offset, args.c_ld,
&queue_plain, &event);
clWaitForEvents(1, &event);
return status;
}
// Describes how to run the clBLAS routine (for correctness/performance comparison)
static StatusCode RunReference(const Arguments<T> &args, const Buffers &buffers,
CommandQueue &queue) {
auto queue_plain = queue();
auto event = cl_event{};
auto status = clblasXgemm(static_cast<clblasOrder>(args.layout),
static_cast<clblasTranspose>(args.a_transpose),
static_cast<clblasTranspose>(args.b_transpose),
args.m, args.n, args.k, args.alpha,
buffers.a_mat(), args.a_offset, args.a_ld,
buffers.b_mat(), args.b_offset, args.b_ld, args.beta,
buffers.c_mat(), args.c_offset, args.c_ld,
1, &queue_plain, 0, nullptr, &event);
clWaitForEvents(1, &event);
return static_cast<StatusCode>(status);
}
// Describes how to download the results of the computation (more importantly: which buffer)
static std::vector<T> DownloadResult(const Arguments<T> &args, Buffers &buffers,
CommandQueue &queue) {
std::vector<T> result(args.c_size, static_cast<T>(0));
buffers.c_mat.ReadBuffer(queue, args.c_size*sizeof(T), result);
return result;
}
// Describes how to compute the indices of the result buffer
static size_t ResultID1(const Arguments<T> &args) { return args.m; }
static size_t ResultID2(const Arguments<T> &args) { return args.n; }
static size_t GetResultIndex(const Arguments<T> &args, const size_t id1, const size_t id2) {
return (args.layout == Layout::kRowMajor) ?
id1*args.c_ld + id2 + args.c_offset:
id2*args.c_ld + id1 + args.c_offset;
}
};
// =================================================================================================
} // namespace clblast
// CLBLAST_TEST_ROUTINES_XGEMM_H_
#endif
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