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168 lines
6.9 KiB
C++
168 lines
6.9 KiB
C++
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// =================================================================================================
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// This file is part of the CLBlast project. The project is licensed under Apache Version 2.0. This
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// project loosely follows the Google C++ styleguide and uses a tab-size of two spaces and a max-
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// width of 100 characters per line.
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//
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// Author(s):
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// Cedric Nugteren <www.cedricnugteren.nl>
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//
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// This file implements a class with static methods to describe the XaxpyBatched routine. Examples of
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// such 'descriptions' are how to calculate the size a of buffer or how to run the routine. These
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// static methods are used by the correctness tester and the performance tester.
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//
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// =================================================================================================
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#ifndef CLBLAST_TEST_ROUTINES_XAXPYBATCHED_H_
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#define CLBLAST_TEST_ROUTINES_XAXPYBATCHED_H_
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#include <vector>
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#include <string>
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#include "utilities/utilities.hpp"
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#ifdef CLBLAST_REF_CLBLAS
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#include "test/wrapper_clblas.hpp"
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#endif
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#ifdef CLBLAST_REF_CBLAS
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#include "test/wrapper_cblas.hpp"
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#endif
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namespace clblast {
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// =================================================================================================
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// See comment at top of file for a description of the class
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template <typename T>
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class TestXaxpyBatched {
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public:
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// Although it is a non-BLAS routine, it can still be tested against level-1 routines in a loop
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static size_t BLASLevel() { return 1; }
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// The list of arguments relevant for this routine
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static std::vector<std::string> GetOptions() {
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return {kArgN,
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kArgXInc, kArgYInc,
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kArgBatchCount, kArgAlpha};
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}
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// Helper to determine a different alpha value per batch
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static T GetAlpha(const T alpha_base, const size_t batch_id) {
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return alpha_base + Constant<T>(batch_id);
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}
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// Describes how to obtain the sizes of the buffers (per item, not for the full batch)
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static size_t GetSizeX(const Arguments<T> &args) {
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return args.n * args.x_inc;
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}
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static size_t GetSizeY(const Arguments<T> &args) {
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return args.n * args.y_inc;
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}
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// Describes how to set the sizes of all the buffers (per item, not for the full batch)
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static void SetSizes(Arguments<T> &args) {
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args.x_size = GetSizeX(args);
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args.y_size = GetSizeY(args);
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}
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// Describes what the default values of the leading dimensions of the matrices are
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static size_t DefaultLDA(const Arguments<T> &) { return 1; } // N/A for this routine
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static size_t DefaultLDB(const Arguments<T> &) { return 1; } // N/A for this routine
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static size_t DefaultLDC(const Arguments<T> &) { return 1; } // N/A for this routine
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// Describes which transpose options are relevant for this routine
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using Transposes = std::vector<Transpose>;
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static Transposes GetATransposes(const Transposes &) { return {}; } // N/A for this routine
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static Transposes GetBTransposes(const Transposes &) { return {}; } // N/A for this routine
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// Describes how to prepare the input data
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static void PrepareData(const Arguments<T>&, Queue&, const int, std::vector<T>&,
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std::vector<T>&, std::vector<T>&, std::vector<T>&, std::vector<T>&,
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std::vector<T>&, std::vector<T>&) {} // N/A for this routine
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// Describes how to run the CLBlast routine
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static StatusCode RunRoutine(const Arguments<T> &args, std::vector<Buffers<T>> &buffers, Queue &queue) {
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auto queue_plain = queue();
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auto event = cl_event{};
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auto alphas = std::vector<T>();
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auto x_buffers = std::vector<cl_mem>();
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auto y_buffers = std::vector<cl_mem>();
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for (auto batch = size_t{0}; batch < args.batch_count; ++batch) {
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alphas.push_back(GetAlpha(args.alpha, batch));
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x_buffers.push_back(buffers[batch].x_vec());
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y_buffers.push_back(buffers[batch].y_vec());
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}
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auto status = AxpyBatched(args.n, alphas.data(),
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x_buffers.data(), args.x_inc,
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y_buffers.data(), args.y_inc,
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args.batch_count,
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&queue_plain, &event);
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if (status == StatusCode::kSuccess) { clWaitForEvents(1, &event); clReleaseEvent(event); }
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return status;
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}
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// Describes how to run the clBLAS routine (for correctness/performance comparison)
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#ifdef CLBLAST_REF_CLBLAS
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static StatusCode RunReference1(const Arguments<T> &args, std::vector<Buffers<T>> &buffers, Queue &queue) {
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auto queue_plain = queue();
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for (auto batch = size_t{0}; batch < args.batch_count; ++batch) {
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auto event = cl_event{};
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auto status = clblasXaxpy(args.n, GetAlpha(args.alpha, batch),
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buffers[batch].x_vec, 0, args.x_inc,
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buffers[batch].y_vec, 0, args.y_inc,
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1, &queue_plain, 0, nullptr, &event);
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clWaitForEvents(1, &event);
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if (static_cast<StatusCode>(status) != StatusCode::kSuccess) {
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return static_cast<StatusCode>(status);
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}
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}
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return StatusCode::kSuccess;
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}
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#endif
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// Describes how to run the CPU BLAS routine (for correctness/performance comparison)
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#ifdef CLBLAST_REF_CBLAS
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static StatusCode RunReference2(const Arguments<T> &args, std::vector<Buffers<T>> &buffers, Queue &queue) {
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for (auto batch = size_t{0}; batch < args.batch_count; ++batch) {
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std::vector<T> x_vec_cpu(args.x_size, static_cast<T>(0));
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std::vector<T> y_vec_cpu(args.y_size, static_cast<T>(0));
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buffers[batch].x_vec.Read(queue, args.x_size, x_vec_cpu);
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buffers[batch].y_vec.Read(queue, args.y_size, y_vec_cpu);
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cblasXaxpy(args.n, GetAlpha(args.alpha, batch),
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x_vec_cpu, 0, args.x_inc,
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y_vec_cpu, 0, args.y_inc);
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buffers[batch].y_vec.Write(queue, args.y_size, y_vec_cpu);
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}
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return StatusCode::kSuccess;
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}
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#endif
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// Describes how to download the results of the computation (per item, not for the full batch)
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static std::vector<T> DownloadResult(const Arguments<T> &args, Buffers<T> &buffers, Queue &queue) {
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std::vector<T> result(args.y_size, static_cast<T>(0));
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buffers.y_vec.Read(queue, args.y_size, result);
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return result;
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}
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// Describes how to compute the indices of the result buffer (per item, not for the full batch)
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static size_t ResultID1(const Arguments<T> &args) { return args.n; }
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static size_t ResultID2(const Arguments<T> &) { return 1; } // N/A for this routine
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static size_t GetResultIndex(const Arguments<T> &args, const size_t id1, const size_t) {
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return id1 * args.y_inc;
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}
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// Describes how to compute performance metrics (per item, not for the full batch)
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static size_t GetFlops(const Arguments<T> &args) {
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return 2 * args.n;
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}
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static size_t GetBytes(const Arguments<T> &args) {
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return (3 * args.n) * sizeof(T);
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}
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};
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// =================================================================================================
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} // namespace clblast
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// CLBLAST_TEST_ROUTINES_XAXPYBATCHED_H_
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#endif
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