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140 lines
5.5 KiB
C++
140 lines
5.5 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 Xasum 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_XASUM_H_
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#define CLBLAST_TEST_ROUTINES_XASUM_H_
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#include <vector>
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#include <string>
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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 TestXasum {
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public:
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// The BLAS level: 1, 2, or 3
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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,
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kArgXOffset, kArgAsumOffset};
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}
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// Describes how to obtain the sizes of the buffers
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static size_t GetSizeX(const Arguments<T> &args) {
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return args.n * args.x_inc + args.x_offset;
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}
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static size_t GetSizeAsum(const Arguments<T> &args) {
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return 1 + args.asum_offset;
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}
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// Describes how to set the sizes of all the buffers
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static void SetSizes(Arguments<T> &args) {
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args.x_size = GetSizeX(args);
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args.scalar_size = GetSizeAsum(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 run the CLBlast routine
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static StatusCode RunRoutine(const Arguments<T> &args, 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 status = Asum<T>(args.n,
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buffers.scalar(), args.asum_offset,
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buffers.x_vec(), args.x_offset, args.x_inc,
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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, 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 status = clblasXasum<T>(args.n,
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buffers.scalar, args.asum_offset,
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buffers.x_vec, args.x_offset, args.x_inc,
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1, &queue_plain, 0, nullptr, &event);
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clWaitForEvents(1, &event);
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return static_cast<StatusCode>(status);
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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, Buffers<T> &buffers, Queue &queue) {
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std::vector<T> scalar_cpu(args.scalar_size, static_cast<T>(0));
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std::vector<T> x_vec_cpu(args.x_size, static_cast<T>(0));
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buffers.scalar.Read(queue, args.scalar_size, scalar_cpu);
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buffers.x_vec.Read(queue, args.x_size, x_vec_cpu);
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cblasXasum(args.n,
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scalar_cpu, args.asum_offset,
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x_vec_cpu, args.x_offset, args.x_inc);
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buffers.scalar.Write(queue, args.scalar_size, scalar_cpu);
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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 (more importantly: which buffer)
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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.scalar_size, static_cast<T>(0));
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buffers.scalar.Read(queue, args.scalar_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
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static size_t ResultID1(const Arguments<T> &) { return 1; } // N/A for this routine
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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, const size_t) {
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return args.asum_offset;
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}
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// Describes how to compute performance metrics
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static size_t GetFlops(const Arguments<T> &args) {
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return args.n;
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}
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static size_t GetBytes(const Arguments<T> &args) {
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return ((args.n) + 1) * 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_XASUM_H_
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#endif
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