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155 lines
6.6 KiB
C++
155 lines
6.6 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 Xhad 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_XHAD_H_
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#define CLBLAST_TEST_ROUTINES_XHAD_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 TestXhad {
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public:
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// The BLAS level: 4 for the extra routines
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static size_t BLASLevel() { return 4; }
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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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kArgXOffset, kArgYOffset,
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kArgAlpha};
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}
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static std::vector<std::string> BuffersIn() { return {kBufVecX, kBufVecY, kBufMatC}; }
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static std::vector<std::string> BuffersOut() { return {kBufMatC}; }
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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 GetSizeY(const Arguments<T> &args) {
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return args.n * args.y_inc + args.y_offset;
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}
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static size_t GetSizeC(const Arguments<T> &args) { // used for 'vector z'
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return args.n; // * args.z_inc + args.z_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.x_size = GetSizeX(args);
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args.y_size = GetSizeY(args);
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args.c_size = GetSizeC(args); // used for 'vector z'
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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, 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 = Had(args.n, args.alpha,
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buffers.x_vec(), args.x_offset, args.x_inc,
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buffers.y_vec(), args.y_offset, args.y_inc, args.beta,
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buffers.c_mat(), 0, 1, // used for 'vector z'
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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 = Had(args.n, args.alpha,
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buffers.x_vec(), args.x_offset, args.x_inc,
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buffers.y_vec(), args.y_offset, args.y_inc, args.beta,
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buffers.c_mat(), 0, 1, // used for 'vector z'
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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 a naive version of the routine (for correctness/performance comparison).
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// Note that a proper clBLAS or CPU BLAS comparison is not available for non-BLAS routines.
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static StatusCode RunReference1(const Arguments<T> &args, Buffers<T> &buffers, Queue &queue) {
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auto buffers_host = BuffersHost<T>();
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DeviceToHost(args, buffers, buffers_host, queue, BuffersIn());
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const auto status = RunReference(args, buffers_host);
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HostToDevice(args, buffers, buffers_host, queue, BuffersOut());
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return status;
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}
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static StatusCode RunReference2(const Arguments<T> &args, BuffersHost<T> &buffers_host, Queue&) {
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return RunReference(args, buffers_host);
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}
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static StatusCode RunReference3(const Arguments<T> &, BuffersCUDA<T> &, Queue &) {
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return StatusCode::kUnknownError;
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}
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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.c_size, static_cast<T>(0));
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buffers.c_mat.Read(queue, args.c_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) { 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.z_inc + args.z_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 4 * args.n;
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}
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static size_t GetBytes(const Arguments<T> &args) {
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return (4 * args.n) * sizeof(T);
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}
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};
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// =================================================================================================
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template <typename T>
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StatusCode RunReference(const Arguments<T> &args, BuffersHost<T> &buffers_host) {
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for (auto index = size_t{0}; index < args.n; ++index) {
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const auto x = buffers_host.x_vec[index * args.x_inc + args.x_offset];
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const auto y = buffers_host.y_vec[index * args.y_inc + args.y_offset];
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const auto z = buffers_host.c_mat[index]; // * args.z_inc + args.z_offset];
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buffers_host.c_mat[index] = x * y * args.alpha + z * args.beta;
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}
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return StatusCode::kSuccess;
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}
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// =================================================================================================
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} // namespace clblast
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// CLBLAST_TEST_ROUTINES_XHAD_H_
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#endif
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