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180 lines
8 KiB
C++
180 lines
8 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 Xgemv 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_XGEMV_H_
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#define CLBLAST_TEST_ROUTINES_XGEMV_H_
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#include "test/routines/common.hpp"
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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 TestXgemv {
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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 2; }
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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 {kArgM, kArgN,
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kArgLayout, kArgATransp,
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kArgALeadDim, kArgXInc, kArgYInc,
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kArgAOffset, kArgXOffset, kArgYOffset,
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kArgAlpha, kArgBeta};
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}
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static std::vector<std::string> BuffersIn() { return {kBufMatA, kBufVecX, kBufVecY}; }
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static std::vector<std::string> BuffersOut() { return {kBufVecY}; }
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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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auto a_transposed = (args.a_transpose != Transpose::kNo);
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auto n_real = (a_transposed) ? args.m : args.n;
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return n_real * args.x_inc + args.x_offset;
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}
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static size_t GetSizeY(const Arguments<T> &args) {
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auto a_transposed = (args.a_transpose != Transpose::kNo);
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auto m_real = (a_transposed) ? args.n : args.m;
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return m_real * args.y_inc + args.y_offset;
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}
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static size_t GetSizeA(const Arguments<T> &args) {
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auto a_rotated = (args.layout == Layout::kRowMajor);
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auto a_two = (a_rotated) ? args.m : args.n;
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return a_two * args.a_ld + args.a_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, Queue&) {
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args.a_size = GetSizeA(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> &args) { return args.n; }
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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 &all) { return all; }
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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, Buffers<T> &buffers, Queue &queue) {
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#ifdef OPENCL_API
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auto queue_plain = queue();
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auto event = cl_event{};
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auto status = Gemv(args.layout, args.a_transpose,
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args.m, args.n, args.alpha,
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buffers.a_mat(), args.a_offset, args.a_ld,
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buffers.x_vec(), args.x_offset, args.x_inc, args.beta,
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buffers.y_vec(), args.y_offset, args.y_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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#elif CUDA_API
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auto status = Gemv(args.layout, args.a_transpose,
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args.m, args.n, args.alpha,
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buffers.a_mat(), args.a_offset, args.a_ld,
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buffers.x_vec(), args.x_offset, args.x_inc, args.beta,
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buffers.y_vec(), args.y_offset, args.y_inc,
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queue.GetContext()(), queue.GetDevice()());
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cuStreamSynchronize(queue());
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#endif
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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 = clblasXgemv(convertToCLBLAS(args.layout),
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convertToCLBLAS(args.a_transpose),
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args.m, args.n, args.alpha,
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buffers.a_mat, args.a_offset, args.a_ld,
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buffers.x_vec, args.x_offset, args.x_inc, args.beta,
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buffers.y_vec, args.y_offset, args.y_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, BuffersHost<T> &buffers_host, Queue &) {
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cblasXgemv(convertToCBLAS(args.layout),
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convertToCBLAS(args.a_transpose),
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args.m, args.n, args.alpha,
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buffers_host.a_mat, args.a_offset, args.a_ld,
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buffers_host.x_vec, args.x_offset, args.x_inc, args.beta,
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buffers_host.y_vec, args.y_offset, args.y_inc);
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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 cuBLAS routine (for correctness/performance comparison)
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#ifdef CLBLAST_REF_CUBLAS
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static StatusCode RunReference3(const Arguments<T> &args, BuffersCUDA<T> &buffers, Queue &) {
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auto status = cublasXgemv(reinterpret_cast<cublasHandle_t>(args.cublas_handle), args.layout,
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convertToCUBLAS(args.a_transpose),
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args.m, args.n, args.alpha,
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buffers.a_mat, args.a_offset, args.a_ld,
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buffers.x_vec, args.x_offset, args.x_inc, args.beta,
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buffers.y_vec, args.y_offset, args.y_inc);
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if (status == CUBLAS_STATUS_SUCCESS) { return StatusCode::kSuccess; } else { return StatusCode::kUnknownError; }
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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.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
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static size_t ResultID1(const Arguments<T> &args) {
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auto a_transposed = (args.a_transpose != Transpose::kNo);
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return (a_transposed) ? args.n : args.m;
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}
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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 + args.y_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 2 * args.m * args.n;
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}
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static size_t GetBytes(const Arguments<T> &args) {
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return (args.m*args.n + 2*args.m + 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_XGEMV_H_
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#endif
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