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/* StarPU --- Runtime system for heterogeneous multicore architectures.
*
* Copyright (C) 2010, 2011 Centre National de la Recherche Scientifique
*
* StarPU is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or (at
* your option) any later version.
*
* StarPU is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* See the GNU Lesser General Public License in COPYING.LGPL for more details.
*/
#include <starpu.h>
#include <starpu_cuda.h>
static __global__ void fblock_cuda(int *block, int nx, int ny, int nz, unsigned ldy, unsigned ldz, float factor)
{
int i, j, k;
for(k=0; k<nz ; k++)
{
for(j=0; j<ny ; j++)
{
for(i=0; i<nx ; i++)
block[(k*ldz)+(j*ldy)+i] = factor;
}
}
}
extern "C" void cuda_func(void *buffers[], void *_args)
{
int *factor = (int *)_args;
int *block = (int *)STARPU_BLOCK_GET_PTR(buffers[0]);
int nx = (int)STARPU_BLOCK_GET_NX(buffers[0]);
int ny = (int)STARPU_BLOCK_GET_NY(buffers[0]);
int nz = (int)STARPU_BLOCK_GET_NZ(buffers[0]);
unsigned ldy = STARPU_BLOCK_GET_LDY(buffers[0]);
unsigned ldz = STARPU_BLOCK_GET_LDZ(buffers[0]);
/* TODO: use more blocks and threads in blocks */
fblock_cuda<<<1,1, 0, starpu_cuda_get_local_stream()>>>(block, nx, ny, nz, ldy, ldz, *factor);
cudaStreamSynchronize(starpu_cuda_get_local_stream());
}
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