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memory_op.cu
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#include "module_psi/kernels/memory_op.h"
#include <complex>
#include <iostream>
#include <cuda_runtime.h>
#include <thrust/complex.h>
#include <base/macros/macros.h>
#define THREADS_PER_BLOCK 256
namespace psi {
namespace memory {
template <typename FPTYPE_out, typename FPTYPE_in>
__global__ void cast_memory(
FPTYPE_out* out,
const FPTYPE_in* in,
const int size)
{
int idx = blockIdx.x * blockDim.x + threadIdx.x;
if(idx >= size) {return;}
out[idx] = static_cast<FPTYPE_out>(in[idx]);
}
template <typename FPTYPE_out, typename FPTYPE_in>
__global__ void cast_memory(
std::complex<FPTYPE_out>* out,
const std::complex<FPTYPE_in>* in,
const int size)
{
int idx = blockIdx.x * blockDim.x + threadIdx.x;
if(idx >= size) {return;}
auto* _out = reinterpret_cast<thrust::complex<FPTYPE_out>*>(out);
const auto* _in = reinterpret_cast<const thrust::complex<FPTYPE_in>*>(in);
_out[idx] = static_cast<thrust::complex<FPTYPE_out>>(_in[idx]);
}
template <typename FPTYPE>
void resize_memory_op<FPTYPE, psi::DEVICE_GPU>::operator()(
const psi::DEVICE_GPU* dev,
FPTYPE*& arr,
const size_t size,
const char* record_in)
{
if (arr != nullptr) {
delete_memory_op<FPTYPE, psi::DEVICE_GPU>()(dev, arr);
}
cudaErrcheck(cudaMalloc((void **)&arr, sizeof(FPTYPE) * size));
}
template <typename FPTYPE>
void set_memory_op<FPTYPE, psi::DEVICE_GPU>::operator()(
const psi::DEVICE_GPU* dev,
FPTYPE* arr,
const int var,
const size_t size)
{
cudaErrcheck(cudaMemset(arr, var, sizeof(FPTYPE) * size));
}
template <typename FPTYPE>
void synchronize_memory_op<FPTYPE, psi::DEVICE_CPU, psi::DEVICE_GPU>::operator()(
const psi::DEVICE_CPU* dev_out,
const psi::DEVICE_GPU* dev_in,
FPTYPE* arr_out,
const FPTYPE* arr_in,
const size_t size)
{
cudaErrcheck(cudaMemcpy(arr_out, arr_in, sizeof(FPTYPE) * size, cudaMemcpyDeviceToHost));
}
template <typename FPTYPE>
void synchronize_memory_op<FPTYPE, psi::DEVICE_GPU, psi::DEVICE_CPU>::operator()(
const psi::DEVICE_GPU* dev_out,
const psi::DEVICE_CPU* dev_in,
FPTYPE* arr_out,
const FPTYPE* arr_in,
const size_t size)
{
cudaErrcheck(cudaMemcpy(arr_out, arr_in, sizeof(FPTYPE) * size, cudaMemcpyHostToDevice));
}
template <typename FPTYPE>
void synchronize_memory_op<FPTYPE, psi::DEVICE_GPU, psi::DEVICE_GPU>::operator()(
const psi::DEVICE_GPU* dev_out,
const psi::DEVICE_GPU* dev_in,
FPTYPE* arr_out,
const FPTYPE* arr_in,
const size_t size)
{
cudaErrcheck(cudaMemcpy(arr_out, arr_in, sizeof(FPTYPE) * size, cudaMemcpyDeviceToDevice));
}
template <typename FPTYPE_out, typename FPTYPE_in>
struct cast_memory_op<FPTYPE_out, FPTYPE_in, psi::DEVICE_GPU, psi::DEVICE_GPU> {
void operator()(const psi::DEVICE_GPU* dev_out,
const psi::DEVICE_GPU* dev_in,
FPTYPE_out* arr_out,
const FPTYPE_in* arr_in,
const size_t size) {
if (size == 0) {return;}
const int block = (size + THREADS_PER_BLOCK - 1) / THREADS_PER_BLOCK;
cast_memory<<<block, THREADS_PER_BLOCK>>>(arr_out, arr_in, size);
cudaErrcheck(cudaGetLastError());
cudaErrcheck(cudaDeviceSynchronize());
}
};
template <typename FPTYPE_out, typename FPTYPE_in>
struct cast_memory_op<FPTYPE_out, FPTYPE_in, psi::DEVICE_GPU, psi::DEVICE_CPU> {
void operator()(const psi::DEVICE_GPU* dev_out,
const psi::DEVICE_CPU* dev_in,
FPTYPE_out* arr_out,
const FPTYPE_in* arr_in,
const size_t size) {
if (size == 0) {return;}
FPTYPE_in * arr = nullptr;
cudaErrcheck(cudaMalloc((void **)&arr, sizeof(FPTYPE_in) * size));
cudaErrcheck(cudaMemcpy(arr, arr_in, sizeof(FPTYPE_in) * size, cudaMemcpyHostToDevice));
const int block = (size + THREADS_PER_BLOCK - 1) / THREADS_PER_BLOCK;
cast_memory<<<block, THREADS_PER_BLOCK>>>(arr_out, arr, size);
cudaErrcheck(cudaGetLastError());
cudaErrcheck(cudaDeviceSynchronize());
cudaErrcheck(cudaFree(arr));
}
};
template <typename FPTYPE_out, typename FPTYPE_in>
struct cast_memory_op<FPTYPE_out, FPTYPE_in, psi::DEVICE_CPU, psi::DEVICE_GPU> {
void operator()(const psi::DEVICE_CPU* dev_out,
const psi::DEVICE_GPU* dev_in,
FPTYPE_out* arr_out,
const FPTYPE_in* arr_in,
const size_t size) {
auto * arr = (FPTYPE_in*) malloc(sizeof(FPTYPE_in) * size);
cudaErrcheck(cudaMemcpy(arr, arr_in, sizeof(FPTYPE_in) * size, cudaMemcpyDeviceToHost));
for (int ii = 0; ii < size; ii++) {
arr_out[ii] = static_cast<FPTYPE_out>(arr[ii]);
}
free(arr);
}
};
template <typename FPTYPE>
void delete_memory_op<FPTYPE, psi::DEVICE_GPU>::operator() (
const psi::DEVICE_GPU* dev,
FPTYPE* arr)
{
cudaErrcheck(cudaFree(arr));
}
template struct resize_memory_op<int, psi::DEVICE_GPU>;
template struct resize_memory_op<float, psi::DEVICE_GPU>;
template struct resize_memory_op<double, psi::DEVICE_GPU>;
template struct resize_memory_op<std::complex<float>, psi::DEVICE_GPU>;
template struct resize_memory_op<std::complex<double>, psi::DEVICE_GPU>;
template struct set_memory_op<int, psi::DEVICE_GPU>;
template struct set_memory_op<float, psi::DEVICE_GPU>;
template struct set_memory_op<double, psi::DEVICE_GPU>;
template struct set_memory_op<std::complex<float>, psi::DEVICE_GPU>;
template struct set_memory_op<std::complex<double>, psi::DEVICE_GPU>;
template struct synchronize_memory_op<int, psi::DEVICE_CPU, psi::DEVICE_GPU>;
template struct synchronize_memory_op<int, psi::DEVICE_GPU, psi::DEVICE_CPU>;
template struct synchronize_memory_op<int, psi::DEVICE_GPU, psi::DEVICE_GPU>;
template struct synchronize_memory_op<float, psi::DEVICE_CPU, psi::DEVICE_GPU>;
template struct synchronize_memory_op<float, psi::DEVICE_GPU, psi::DEVICE_CPU>;
template struct synchronize_memory_op<float, psi::DEVICE_GPU, psi::DEVICE_GPU>;
template struct synchronize_memory_op<double, psi::DEVICE_CPU, psi::DEVICE_GPU>;
template struct synchronize_memory_op<double, psi::DEVICE_GPU, psi::DEVICE_CPU>;
template struct synchronize_memory_op<double, psi::DEVICE_GPU, psi::DEVICE_GPU>;
template struct synchronize_memory_op<std::complex<float>, psi::DEVICE_CPU, psi::DEVICE_GPU>;
template struct synchronize_memory_op<std::complex<float>, psi::DEVICE_GPU, psi::DEVICE_CPU>;
template struct synchronize_memory_op<std::complex<float>, psi::DEVICE_GPU, psi::DEVICE_GPU>;
template struct synchronize_memory_op<std::complex<double>, psi::DEVICE_CPU, psi::DEVICE_GPU>;
template struct synchronize_memory_op<std::complex<double>, psi::DEVICE_GPU, psi::DEVICE_CPU>;
template struct synchronize_memory_op<std::complex<double>, psi::DEVICE_GPU, psi::DEVICE_GPU>;
template struct cast_memory_op<float, float, psi::DEVICE_GPU, psi::DEVICE_GPU>;
template struct cast_memory_op<double, double, psi::DEVICE_GPU, psi::DEVICE_GPU>;
template struct cast_memory_op<float, double, psi::DEVICE_GPU, psi::DEVICE_GPU>;
template struct cast_memory_op<double, float, psi::DEVICE_GPU, psi::DEVICE_GPU>;
template struct cast_memory_op<std::complex<float>, std::complex<float>, psi::DEVICE_GPU, psi::DEVICE_GPU>;
template struct cast_memory_op<std::complex<double>, std::complex<double>, psi::DEVICE_GPU, psi::DEVICE_GPU>;
template struct cast_memory_op<std::complex<float>, std::complex<double>, psi::DEVICE_GPU, psi::DEVICE_GPU>;
template struct cast_memory_op<std::complex<double>, std::complex<float>, psi::DEVICE_GPU, psi::DEVICE_GPU>;
template struct cast_memory_op<float, float, psi::DEVICE_GPU, psi::DEVICE_CPU>;
template struct cast_memory_op<double, double, psi::DEVICE_GPU, psi::DEVICE_CPU>;
template struct cast_memory_op<float, double, psi::DEVICE_GPU, psi::DEVICE_CPU>;
template struct cast_memory_op<double, float, psi::DEVICE_GPU, psi::DEVICE_CPU>;
template struct cast_memory_op<std::complex<float>, std::complex<float>, psi::DEVICE_GPU, psi::DEVICE_CPU>;
template struct cast_memory_op<std::complex<double>, std::complex<double>, psi::DEVICE_GPU, psi::DEVICE_CPU>;
template struct cast_memory_op<std::complex<float>, std::complex<double>, psi::DEVICE_GPU, psi::DEVICE_CPU>;
template struct cast_memory_op<std::complex<double>, std::complex<float>, psi::DEVICE_GPU, psi::DEVICE_CPU>;
template struct cast_memory_op<float, float, psi::DEVICE_CPU, psi::DEVICE_GPU>;
template struct cast_memory_op<double, double, psi::DEVICE_CPU, psi::DEVICE_GPU>;
template struct cast_memory_op<float, double, psi::DEVICE_CPU, psi::DEVICE_GPU>;
template struct cast_memory_op<double, float, psi::DEVICE_CPU, psi::DEVICE_GPU>;
template struct cast_memory_op<std::complex<float>, std::complex<float>, psi::DEVICE_CPU, psi::DEVICE_GPU>;
template struct cast_memory_op<std::complex<double>, std::complex<double>, psi::DEVICE_CPU, psi::DEVICE_GPU>;
template struct cast_memory_op<std::complex<float>, std::complex<double>, psi::DEVICE_CPU, psi::DEVICE_GPU>;
template struct cast_memory_op<std::complex<double>, std::complex<float>, psi::DEVICE_CPU, psi::DEVICE_GPU>;
template struct delete_memory_op<int, psi::DEVICE_GPU>;
template struct delete_memory_op<float, psi::DEVICE_GPU>;
template struct delete_memory_op<double, psi::DEVICE_GPU>;
template struct delete_memory_op<std::complex<float>, psi::DEVICE_GPU>;
template struct delete_memory_op<std::complex<double>, psi::DEVICE_GPU>;
} // end of namespace gpu_cuda
} // end of namespace psi