hamgpu.cu File Reference

#include <iostream>
#include <cstdio>
#include <cstdlib>
#include <cublas_v2.h>
#include "hamgpu.h"
#include "hamsparse.h"
#include "hamsparse2D.h"

Include dependency graph for hamgpu.cu:

Go to the source code of this file.

Macros
#define	NUMTHREADS   128
#define	GRIDSIZE   65535
#define	CUDA_SAFE_CALL(call)

Functions
__global__ void	gpu_mvprod (double *x, double *y, double alpha, int NumUp, int NumDown, int dim, double *Umat, double *Down_data, unsigned int *Down_ind, int size_Down, double *Up_data, unsigned int *Up_ind, int size_Up, int rows_shared)

Macro Definition Documentation

#define CUDA_SAFE_CALL

(

call

)

Value:

{                                    \
    cudaError err = call;                                                    \
    if( cudaSuccess != err) {                                                \
        fprintf(stderr, "Cuda error in file '%s' in line %i : %s.\n",        \
                __FILE__, __LINE__, cudaGetErrorString( err) );              \
        exit(EXIT_FAILURE);                                                  \
    } }

Definition at line 34 of file hamgpu.cu.

#define GRIDSIZE   65535

Definition at line 31 of file hamgpu.cu.

#define NUMTHREADS   128

Definition at line 28 of file hamgpu.cu.

Function Documentation

__global__ void gpu_mvprod	(	double *	x,
		double *	y,
		double	alpha,
		int	NumUp,
		int	NumDown,
		int	dim,
		double *	Umat,
		double *	Down_data,
		unsigned int *	Down_ind,
		int	size_Down,
		double *	Up_data,
		unsigned int *	Up_ind,
		int	size_Up,
		int	rows_shared
	)

The actual Cuda kernel to calculate the matrix vector product with the hamiltonian

Definition at line 69 of file hamgpu.cu.