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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 cuda_block(float *block, int nx, int ny, int nz, unsigned ldy, unsigned ldz, float multiplier)
{
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] *= multiplier;
}
}
}
extern "C" void cuda_codelet(void *descr[], void *_args)
{
float *block = (float *)STARPU_BLOCK_GET_PTR(descr[0]);
int nx = STARPU_BLOCK_GET_NX(descr[0]);
int ny = STARPU_BLOCK_GET_NY(descr[0]);
int nz = STARPU_BLOCK_GET_NZ(descr[0]);
unsigned ldy = STARPU_BLOCK_GET_LDY(descr[0]);
unsigned ldz = STARPU_BLOCK_GET_LDZ(descr[0]);
float *multiplier = (float *)_args;
cuda_block<<<1,1, 0, starpu_cuda_get_local_stream()>>>(block, nx, ny, nz, ldy, ldz, *multiplier);
cudaStreamSynchronize(starpu_cuda_get_local_stream());
}
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