mirror of
https://github.com/QuantumPackage/qp2.git
synced 2024-11-19 20:42:36 +01:00
332 lines
9.0 KiB
C
332 lines
9.0 KiB
C
#include <stdint.h>
|
|
#include <stdio.h>
|
|
#include <stdbool.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <assert.h>
|
|
|
|
#include <cublas_v2.h>
|
|
#include <cuda_runtime.h>
|
|
|
|
|
|
/* Generic functions */
|
|
|
|
int gpu_ndevices() {
|
|
int ngpus;
|
|
cudaGetDeviceCount(&ngpus);
|
|
return ngpus;
|
|
}
|
|
|
|
void gpu_set_device(int32_t igpu) {
|
|
cudaSetDevice((int) igpu);
|
|
}
|
|
|
|
|
|
/* Allocation functions */
|
|
|
|
void gpu_allocate(void** ptr, const int64_t size) {
|
|
size_t free, total;
|
|
cudaError_t rc = cudaMemGetInfo( &free, &total );
|
|
if (rc != cudaSuccess) {
|
|
free = INT64_MAX;
|
|
}
|
|
|
|
rc = cudaMallocManaged(ptr, size, cudaMemAttachGlobal);
|
|
// /* Use managed memory if it does not fit on the GPU */
|
|
// if (size < free && size < total/2) {
|
|
// rc= cudaMalloc(ptr, size);
|
|
// } else {
|
|
// rc = cudaMallocManaged(ptr, size, cudaMemAttachGlobal);
|
|
// }
|
|
assert (rc == cudaSuccess);
|
|
}
|
|
|
|
void gpu_deallocate(void** ptr) {
|
|
assert (*ptr != NULL);
|
|
cudaFree(*ptr);
|
|
*ptr = NULL;
|
|
}
|
|
|
|
|
|
/* Memory transfer functions */
|
|
|
|
void gpu_upload(const void* cpu_ptr, void* gpu_ptr, const int64_t n) {
|
|
cudaMemcpy (gpu_ptr, cpu_ptr, n, cudaMemcpyHostToDevice);
|
|
}
|
|
|
|
void gpu_download(const void* gpu_ptr, void* cpu_ptr, const int64_t n) {
|
|
cudaMemcpy (cpu_ptr, gpu_ptr, n, cudaMemcpyDeviceToHost);
|
|
}
|
|
|
|
void gpu_copy(const void* gpu_ptr_src, void* gpu_ptr_dest, const int64_t n) {
|
|
cudaMemcpy (gpu_ptr_dest, gpu_ptr_src, n, cudaMemcpyDeviceToDevice);
|
|
}
|
|
|
|
|
|
/* Streams */
|
|
|
|
void gpu_stream_create(cudaStream_t* ptr) {
|
|
cudaError_t rc = cudaStreamCreate(ptr);
|
|
assert (rc == cudaSuccess);
|
|
}
|
|
|
|
void gpu_stream_destroy(cudaStream_t* ptr) {
|
|
assert (ptr != NULL);
|
|
cudaError_t rc = cudaStreamDestroy(*ptr);
|
|
assert (rc == cudaSuccess);
|
|
*ptr = NULL;
|
|
}
|
|
|
|
void gpu_set_stream(cublasHandle_t handle, cudaStream_t stream) {
|
|
cublasSetStream(handle, stream);
|
|
}
|
|
|
|
void gpu_synchronize() {
|
|
cudaDeviceSynchronize();
|
|
}
|
|
|
|
|
|
/* BLAS functions */
|
|
|
|
void gpu_blas_create(cublasHandle_t* ptr) {
|
|
cublasStatus_t rc = cublasCreate(ptr);
|
|
assert (rc == CUBLAS_STATUS_SUCCESS);
|
|
}
|
|
|
|
|
|
void gpu_blas_destroy(cublasHandle_t* ptr) {
|
|
assert (ptr != NULL);
|
|
cublasStatus_t rc = cublasDestroy(*ptr);
|
|
assert (rc == CUBLAS_STATUS_SUCCESS);
|
|
ptr = NULL;
|
|
}
|
|
|
|
|
|
void gpu_ddot(cublasHandle_t handle, const int64_t n, const double* x, const int64_t incx, const double* y, const int64_t incy, double* result) {
|
|
assert (handle != NULL);
|
|
/* Convert to int */
|
|
int n_, incx_, incy_;
|
|
|
|
n_ = (int) n;
|
|
incx_ = (int) incx;
|
|
incy_ = (int) incy;
|
|
|
|
assert ( (int64_t) n_ == n );
|
|
assert ( (int64_t) incx_ == incx);
|
|
assert ( (int64_t) incy_ == incy);
|
|
|
|
cublasStatus_t rc = cublasDdot(handle, n_, x, incx_, y, incy_, result);
|
|
/*
|
|
double alpha = 1.0;
|
|
double beta = 0.0;
|
|
cublasStatus_t rc = cublasDgemm(handle, CUBLAS_OP_N, CUBLAS_OP_N, 1, 1, n_, &alpha, x, 1, y, n_, &beta, &result_, 1);
|
|
*/
|
|
assert (rc == CUBLAS_STATUS_SUCCESS);
|
|
}
|
|
|
|
|
|
|
|
void gpu_sdot(cublasHandle_t handle, const int64_t n, const float* x, const int64_t incx, const float* y, const int64_t incy, float* result) {
|
|
assert (handle != NULL);
|
|
|
|
/* Convert to int */
|
|
int n_, incx_, incy_;
|
|
|
|
n_ = (int) n;
|
|
incx_ = (int) incx;
|
|
incy_ = (int) incy;
|
|
|
|
/* Check for integer overflows */
|
|
assert ( (int64_t) n_ == n );
|
|
assert ( (int64_t) incx_ == incx);
|
|
assert ( (int64_t) incy_ == incy);
|
|
|
|
float result_ = 0.;
|
|
cublasStatus_t rc = cublasSdot(handle, n_, x, incx_, y, incy_, &result_);
|
|
assert (rc == CUBLAS_STATUS_SUCCESS);
|
|
*result = result_;
|
|
}
|
|
|
|
|
|
|
|
void gpu_dgemv(cublasHandle_t handle, const char transa, const int64_t m, const int64_t n, const double alpha,
|
|
const double* a, const int64_t lda, const double* x, const int64_t incx, const double beta, double* y, const int64_t incy) {
|
|
|
|
assert (handle != NULL);
|
|
|
|
/* Convert to int */
|
|
int m_, n_, lda_, incx_, incy_;
|
|
|
|
m_ = (int) m;
|
|
n_ = (int) n;
|
|
lda_ = (int) lda;
|
|
incx_ = (int) incx;
|
|
incy_ = (int) incy;
|
|
|
|
/* Check for integer overflows */
|
|
assert ( (int64_t) m_ == m );
|
|
assert ( (int64_t) n_ == n );
|
|
assert ( (int64_t) lda_ == lda );
|
|
assert ( (int64_t) incx_ == incx);
|
|
assert ( (int64_t) incy_ == incy);
|
|
|
|
cublasOperation_t transa_ = CUBLAS_OP_N;
|
|
if (transa == 'T' || transa == 't') transa_ = CUBLAS_OP_T;
|
|
|
|
cublasDgemv(handle, transa_, m_, n_, &alpha, a, lda_, x, incx_, &beta, y, incy_);
|
|
}
|
|
|
|
|
|
|
|
void gpu_sgemv(cublasHandle_t handle, const char transa, const int64_t m, const int64_t n, const float alpha,
|
|
const float* a, const int64_t lda, const float* x, const int64_t incx, const float beta, float* y, const int64_t incy) {
|
|
|
|
assert (handle != NULL);
|
|
|
|
/* Convert to int */
|
|
int m_, n_, lda_, incx_, incy_;
|
|
|
|
m_ = (int) m;
|
|
n_ = (int) n;
|
|
lda_ = (int) lda;
|
|
incx_ = (int) incx;
|
|
incy_ = (int) incy;
|
|
|
|
/* Check for integer overflows */
|
|
assert ( (int64_t) m_ == m );
|
|
assert ( (int64_t) n_ == n );
|
|
assert ( (int64_t) lda_ == lda );
|
|
assert ( (int64_t) incx_ == incx);
|
|
assert ( (int64_t) incy_ == incy);
|
|
|
|
cublasOperation_t transa_ = CUBLAS_OP_N;
|
|
if (transa == 'T' || transa == 't') transa_ = CUBLAS_OP_T;
|
|
|
|
cublasSgemv(handle, transa_, m_, n_, &alpha, a, lda_, x, incx_, &beta, y, incy_);
|
|
}
|
|
|
|
|
|
void gpu_dgemm(cublasHandle_t handle, const char transa, const char transb, const int64_t m, const int64_t n, const int64_t k, const double alpha,
|
|
const double* a, const int64_t lda, const double* b, const int64_t ldb, const double beta, double* c, const int64_t ldc) {
|
|
|
|
assert (handle != NULL);
|
|
|
|
/* Convert to int */
|
|
int m_, n_, k_, lda_, ldb_, ldc_;
|
|
|
|
m_ = (int) m;
|
|
n_ = (int) n;
|
|
k_ = (int) k;
|
|
lda_ = (int) lda;
|
|
ldb_ = (int) ldb;
|
|
ldc_ = (int) ldc;
|
|
|
|
/* Check for integer overflows */
|
|
assert ( (int64_t) m_ == m );
|
|
assert ( (int64_t) n_ == n );
|
|
assert ( (int64_t) k_ == k );
|
|
assert ( (int64_t) lda_ == lda);
|
|
assert ( (int64_t) ldb_ == ldb);
|
|
assert ( (int64_t) ldc_ == ldc);
|
|
|
|
cublasOperation_t transa_ = CUBLAS_OP_N;
|
|
cublasOperation_t transb_ = CUBLAS_OP_N;
|
|
if (transa == 'T' || transa == 't') transa_ = CUBLAS_OP_T;
|
|
if (transb == 'T' || transb == 't') transb_ = CUBLAS_OP_T;
|
|
|
|
cublasDgemm(handle, transa_, transb_, m_, n_, k_, &alpha, a, lda_, b, ldb_, &beta, c, ldc_);
|
|
}
|
|
|
|
|
|
|
|
void gpu_sgemm(cublasHandle_t handle, const char transa, const char transb, const int64_t m, const int64_t n, const int64_t k, const float alpha,
|
|
const float* a, const int64_t lda, const float* b, const int64_t ldb, const float beta, float* c, const int64_t ldc) {
|
|
|
|
assert (handle != NULL);
|
|
|
|
/* Convert to int */
|
|
int m_, n_, k_, lda_, ldb_, ldc_;
|
|
|
|
m_ = (int) m;
|
|
n_ = (int) n;
|
|
k_ = (int) k;
|
|
lda_ = (int) lda;
|
|
ldb_ = (int) ldb;
|
|
ldc_ = (int) ldc;
|
|
|
|
/* Check for integer overflows */
|
|
assert ( (int64_t) m_ == m );
|
|
assert ( (int64_t) n_ == n );
|
|
assert ( (int64_t) k_ == k );
|
|
assert ( (int64_t) lda_ == lda);
|
|
assert ( (int64_t) ldb_ == ldb);
|
|
assert ( (int64_t) ldc_ == ldc);
|
|
|
|
cublasOperation_t transa_ = CUBLAS_OP_N;
|
|
cublasOperation_t transb_ = CUBLAS_OP_N;
|
|
if (transa == 'T' || transa == 't') transa_ = CUBLAS_OP_T;
|
|
if (transb == 'T' || transb == 't') transb_ = CUBLAS_OP_T;
|
|
|
|
cublasSgemm(handle, transa_, transb_, m_, n_, k_, &alpha, a, lda_, b, ldb_, &beta, c, ldc_);
|
|
}
|
|
|
|
|
|
void gpu_dgeam(cublasHandle_t handle, const char transa, const char transb, const int64_t m, const int64_t n, const double alpha,
|
|
const double* a, const int64_t lda, const double beta, const double* b, const int64_t ldb, double* c, const int64_t ldc) {
|
|
assert (handle != NULL);
|
|
|
|
/* Convert to int */
|
|
int m_, n_, lda_, ldb_, ldc_;
|
|
|
|
m_ = (int) m;
|
|
n_ = (int) n;
|
|
lda_ = (int) lda;
|
|
ldb_ = (int) ldb;
|
|
ldc_ = (int) ldc;
|
|
|
|
/* Check for integer overflows */
|
|
assert ( (int64_t) m_ == m );
|
|
assert ( (int64_t) n_ == n );
|
|
assert ( (int64_t) lda_ == lda);
|
|
assert ( (int64_t) ldb_ == ldb);
|
|
assert ( (int64_t) ldc_ == ldc);
|
|
|
|
cublasOperation_t transa_ = CUBLAS_OP_N;
|
|
cublasOperation_t transb_ = CUBLAS_OP_N;
|
|
if (transa == 'T' || transa == 't') transa_ = CUBLAS_OP_T;
|
|
if (transb == 'T' || transb == 't') transb_ = CUBLAS_OP_T;
|
|
|
|
cublasDgeam(handle, transa_, transb_, m_, n_, &alpha, a, lda_, &beta, b, ldb_, c, ldc_);
|
|
|
|
}
|
|
|
|
|
|
void gpu_sgeam(cublasHandle_t handle, const char transa, const char transb, const int64_t m, const int64_t n, const float alpha,
|
|
const float* a, const int64_t lda, const float beta, const float* b, const int64_t ldb, float* c, const int64_t ldc) {
|
|
assert (handle != NULL);
|
|
|
|
/* Convert to int */
|
|
int m_, n_, lda_, ldb_, ldc_;
|
|
|
|
m_ = (int) m;
|
|
n_ = (int) n;
|
|
lda_ = (int) lda;
|
|
ldb_ = (int) ldb;
|
|
ldc_ = (int) ldc;
|
|
|
|
/* Check for integer overflows */
|
|
assert ( (int64_t) m_ == m );
|
|
assert ( (int64_t) n_ == n );
|
|
assert ( (int64_t) lda_ == lda);
|
|
assert ( (int64_t) ldb_ == ldb);
|
|
assert ( (int64_t) ldc_ == ldc);
|
|
|
|
cublasOperation_t transa_ = CUBLAS_OP_N;
|
|
cublasOperation_t transb_ = CUBLAS_OP_N;
|
|
if (transa == 'T' || transa == 't') transa_ = CUBLAS_OP_T;
|
|
if (transb == 'T' || transb == 't') transb_ = CUBLAS_OP_T;
|
|
|
|
cublasSgeam(handle, transa_, transb_, m_, n_, &alpha, a, lda_, &beta, b, ldb_, c, ldc_);
|
|
|
|
}
|