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cuda

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jiri
2010-09-08 16:27:58 +00:00
parent e8cbf9e5fb
commit e580467e5a
14 changed files with 7106 additions and 3691 deletions
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51
cuda_la.h
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@@ -1,6 +1,10 @@
//------------------------------------------------------------------------------
/* vim: set ts=8 sw=8 sts=8 noexpandtab cindent: */
//------------------------------------------------------------------------------
#ifndef _CUDA_LA_H
#define _CUDA_LA_H
#include <errno.h>
#ifdef CUDALA
#undef MATPTR
#include "cublas.h"
@@ -13,6 +17,7 @@ namespace LA {
#ifdef CUDALA
#define CPU_GPU(x,y) {if((x)!=cpu && (y)!=cpu) laerror("one operand must be in CPU memory");}
#define NOT_GPU(x) {if((x).getlocation()!=cpu) laerror("Operation not implemented on GPU (yet). Use .moveto(0) first.");}
#define NOT_CPU(x) {if((x).getlocation()==cpu) laerror("Operation not implemented on CPU (yet). Use .moveto(>0) first.");}
#define SAME_LOC(x,y) {if((x).getlocation()!=(y).getlocation()) laerror("Operands have different location. Use .moveto() first.");}
#define SAME_LOC3(x,y,z) {if((x).getlocation()!=(y).getlocation() || (x).getlocation()!=(z).getlocation()) laerror("Operands have different location. Use .moveto() first.");}
#else
@@ -22,6 +27,16 @@ namespace LA {
#define SAME_LOC3(x,y,z) {}
#endif
#ifdef DEBUG
#ifdef __GNUG__
#define TEST_CUBLAS(X) { if(cublasGetError() != CUBLAS_STATUS_SUCCESS){ laerror2(#X, __PRETTY_FUNCTION__); } }
#else
#define TEST_CUBLAS(X) { if(cublasGetError() != CUBLAS_STATUS_SUCCESS){ laerror2(#X, __func__); } }
#endif
#else
#define TEST_CUBLAS(X) {}
#endif
typedef enum {undefined=-1, cpu=0, gpu1=1, gpu2=2, gpu3=3, gpu4=4} GPUID;
#ifdef CUDALA
@@ -33,6 +48,7 @@ public:
{
cublasStatus status = cublasInit();
if (status != CUBLAS_STATUS_SUCCESS) laerror("Cannot init GPU for CUBLAS");
errno = 0;
}
~GPU_START(void)
{
@@ -50,8 +66,41 @@ extern complex<double> *gpuputcomplex(const complex<double> &x);
void set_default_loc(const GPUID loc);
extern GPUID DEFAULT_LOC;
template <typename T>
void smart_gpu_set(size_t n, const T& val, void *gpu_to, size_t _step = 1){
void *ptr(NULL);
if(sizeof(T)%sizeof(float) != 0){ laerror("memory alignment error"); }
cublasAlloc(1, sizeof(T), &ptr);
TEST_CUBLAS("cublasAlloc");
cublasSetVector(1, sizeof(T), &val, 1, ptr, 1);
TEST_CUBLAS("cublasSetVector");
if(sizeof(T) == sizeof(float)){
cublasScopy(n, (float*)ptr, 0, ((float*)gpu_to), _step);
TEST_CUBLAS("cublasScopy");
}else if(sizeof(T) == sizeof(double)){
cublasDcopy(n, (double*)ptr, 0, ((double*)gpu_to), _step);
TEST_CUBLAS("cublasDcopy");
}else if(sizeof(T) == sizeof(complex<double>)){
cublasZcopy(n, (cuDoubleComplex*)ptr, 0, (cuDoubleComplex*)gpu_to, _step);
TEST_CUBLAS("cublasZcopy");
}else{
for(register int i=0; i<sizeof(T)/sizeof(float); i++){
cublasScopy(n, (float*)ptr + i, 0, ((float*)gpu_to) + i, sizeof(T)/sizeof(float)*_step);
TEST_CUBLAS("cublasScopy");
}
}
cublasFree(ptr);
TEST_CUBLAS("cublasFree");
}
extern GPUID DEFAULT_LOC;
#endif
}