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/* StarPU --- Runtime system for heterogeneous multicore architectures.
*
* Copyright (C) 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>
#define DOT_TYPE double
static __global__ void cuda_redux(DOT_TYPE *dota, DOT_TYPE *dotb)
{
*dota = *dota + *dotb;
return;
}
extern "C" void redux_cuda_func(void *descr[], void *_args)
{
(void)_args;
DOT_TYPE *dota = (DOT_TYPE *)STARPU_VARIABLE_GET_PTR(descr[0]);
DOT_TYPE *dotb = (DOT_TYPE *)STARPU_VARIABLE_GET_PTR(descr[1]);
cuda_redux<<<1,1, 0, starpu_cuda_get_local_stream()>>>(dota, dotb);
cudaStreamSynchronize(starpu_cuda_get_local_stream());
}
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