mirror of
https://github.com/CNugteren/CLBlast.git
synced 2024-07-07 12:23:46 +02:00
112 lines
4.8 KiB
C++
112 lines
4.8 KiB
C++
|
|
// =================================================================================================
|
|
// This file is part of the CLBlast project. The project is licensed under Apache Version 2.0. 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 contains all the CUDA related code; used only in case of testing against cuBLAS
|
|
//
|
|
// =================================================================================================
|
|
|
|
#ifndef CLBLAST_TEST_WRAPPER_CUDA_H_
|
|
#define CLBLAST_TEST_WRAPPER_CUDA_H_
|
|
|
|
#include <string>
|
|
#include <vector>
|
|
#include <memory>
|
|
#include <stdexcept>
|
|
|
|
#include "utilities/utilities.hpp"
|
|
|
|
#ifdef CLBLAST_REF_CUBLAS
|
|
#include <cuda_runtime.h>
|
|
#include <cublas_v2.h>
|
|
#endif
|
|
|
|
namespace clblast {
|
|
// =================================================================================================
|
|
|
|
// Copies data from the CUDA device to the host and frees-up the CUDA memory afterwards
|
|
#ifdef CLBLAST_REF_CUBLAS
|
|
template <typename T>
|
|
void CUDAToHost(T* buffer_cuda, std::vector<T> &buffer_host, const size_t size) {
|
|
cudaMemcpy(
|
|
reinterpret_cast<void*>(buffer_host.data()),
|
|
reinterpret_cast<void*>(buffer_cuda),
|
|
size*sizeof(T),
|
|
cudaMemcpyDeviceToHost
|
|
);
|
|
cudaFree(buffer_cuda);
|
|
}
|
|
#else
|
|
template <typename T> void CUDAToHost(T*, const std::vector<T>&, const size_t) { }
|
|
#endif
|
|
|
|
// Allocates space on the CUDA device and copies in data from the host
|
|
#ifdef CLBLAST_REF_CUBLAS
|
|
template <typename T>
|
|
void HostToCUDA(T* buffer_cuda, std::vector<T> &buffer_host, const size_t size) {
|
|
cudaMalloc(reinterpret_cast<void**>(&buffer_cuda), size*sizeof(T));
|
|
cudaMemcpy(
|
|
reinterpret_cast<void*>(buffer_cuda),
|
|
reinterpret_cast<void*>(buffer_host.data()),
|
|
size*sizeof(T),
|
|
cudaMemcpyHostToDevice
|
|
);
|
|
}
|
|
#else
|
|
template <typename T> void HostToCUDA(T*, const std::vector<T>&, const size_t) { }
|
|
#endif
|
|
|
|
// =================================================================================================
|
|
|
|
template <typename T>
|
|
struct BuffersCUDA {
|
|
T* x_vec;
|
|
T* y_vec;
|
|
T* a_mat;
|
|
T* b_mat;
|
|
T* c_mat;
|
|
T* ap_mat;
|
|
T* scalar;
|
|
};
|
|
|
|
template <typename T, typename U>
|
|
void CUDAToHost(const Arguments<U> &args, BuffersCUDA<T> &buffers, BuffersHost<T> &buffers_host,
|
|
const std::vector<std::string> &names) {
|
|
for (auto &name: names) {
|
|
if (name == kBufVecX) { buffers_host.x_vec = std::vector<T>(args.x_size, static_cast<T>(0)); CUDAToHost(buffers.x_vec, buffers_host.x_vec, args.x_size); }
|
|
else if (name == kBufVecY) { buffers_host.y_vec = std::vector<T>(args.y_size, static_cast<T>(0)); CUDAToHost(buffers.y_vec, buffers_host.y_vec, args.y_size); }
|
|
else if (name == kBufMatA) { buffers_host.a_mat = std::vector<T>(args.a_size, static_cast<T>(0)); CUDAToHost(buffers.a_mat, buffers_host.a_mat, args.a_size); }
|
|
else if (name == kBufMatB) { buffers_host.b_mat = std::vector<T>(args.b_size, static_cast<T>(0)); CUDAToHost(buffers.b_mat, buffers_host.b_mat, args.b_size); }
|
|
else if (name == kBufMatC) { buffers_host.c_mat = std::vector<T>(args.c_size, static_cast<T>(0)); CUDAToHost(buffers.c_mat, buffers_host.c_mat, args.c_size); }
|
|
else if (name == kBufMatAP) { buffers_host.ap_mat = std::vector<T>(args.ap_size, static_cast<T>(0)); CUDAToHost(buffers.ap_mat, buffers_host.ap_mat, args.ap_size); }
|
|
else if (name == kBufScalar) { buffers_host.scalar = std::vector<T>(args.scalar_size, static_cast<T>(0)); CUDAToHost(buffers.scalar, buffers_host.scalar, args.scalar_size); }
|
|
else { throw std::runtime_error("Invalid buffer name"); }
|
|
}
|
|
}
|
|
|
|
template <typename T, typename U>
|
|
void HostToCUDA(const Arguments<U> &args, BuffersCUDA<T> &buffers, BuffersHost<T> &buffers_host,
|
|
const std::vector<std::string> &names) {
|
|
for (auto &name: names) {
|
|
if (name == kBufVecX) { HostToCUDA(buffers.x_vec, buffers_host.x_vec, args.x_size); }
|
|
else if (name == kBufVecY) { HostToCUDA(buffers.y_vec, buffers_host.y_vec, args.y_size); }
|
|
else if (name == kBufMatA) { HostToCUDA(buffers.a_mat, buffers_host.a_mat, args.a_size); }
|
|
else if (name == kBufMatB) { HostToCUDA(buffers.b_mat, buffers_host.b_mat, args.b_size); }
|
|
else if (name == kBufMatC) { HostToCUDA(buffers.c_mat, buffers_host.c_mat, args.c_size); }
|
|
else if (name == kBufMatAP) { HostToCUDA(buffers.ap_mat, buffers_host.ap_mat, args.ap_size); }
|
|
else if (name == kBufScalar) { HostToCUDA(buffers.scalar, buffers_host.scalar, args.scalar_size); }
|
|
else { throw std::runtime_error("Invalid buffer name"); }
|
|
}
|
|
}
|
|
|
|
// =================================================================================================
|
|
} // namespace clblast
|
|
|
|
// CLBLAST_TEST_WRAPPER_CUDA_H_
|
|
#endif
|