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/* StarPU --- Runtime system for heterogeneous multicore architectures.
*
* Copyright (C) 2009, 2010-2011 Université de Bordeaux 1
* Copyright (C) 2010, 2011, 2012 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 <pthread.h>
#include <sys/time.h>
static unsigned niter = 50000;
#define FPRINTF(ofile, fmt, args ...) do { if (!getenv("STARPU_SSILENT")) {fprintf(ofile, fmt, ##args); }} while(0)
#ifdef STARPU_USE_CUDA
extern void cuda_codelet(void *descr[], __attribute__ ((unused)) void *_args);
#endif
#ifdef STARPU_USE_OPENCL
#include <starpu_opencl.h>
extern void opencl_codelet(void *descr[], __attribute__ ((unused)) void *_args);
struct starpu_opencl_program opencl_program;
#endif
void cpu_codelet(void *descr[], __attribute__ ((unused)) void *_args)
{
float *val = (float *)STARPU_VECTOR_GET_PTR(descr[0]);
val[0] += 1.0f; val[1] += 1.0f;
}
int main(int argc, char **argv)
{
int ret = 0;
ret = starpu_init(NULL);
if (ret == -ENODEV)
return 77;
STARPU_CHECK_RETURN_VALUE(ret, "starpu_init");
#ifdef STARPU_SLOW_MACHINE
niter /= 100;
#endif
if (argc == 2)
niter = atoi(argv[1]);
float float_array[4] __attribute__ ((aligned (16))) = { 0.0f, 0.0f, 0.0f, 0.0f};
starpu_data_handle_t float_array_handle;
starpu_vector_data_register(&float_array_handle, 0 /* home node */,
(uintptr_t)&float_array, 4, sizeof(float));
#ifdef STARPU_USE_OPENCL
ret = starpu_opencl_load_opencl_from_file("examples/incrementer/incrementer_kernels_opencl_kernel.cl", &opencl_program, NULL);
STARPU_CHECK_RETURN_VALUE(ret, "starpu_opencl_load_opencl_from_file");
#endif
struct starpu_codelet cl =
{
.where = STARPU_CPU|STARPU_CUDA|STARPU_OPENCL,
.cpu_funcs = {cpu_codelet, NULL},
#ifdef STARPU_USE_CUDA
.cuda_funcs = {cuda_codelet, NULL},
#endif
#ifdef STARPU_USE_OPENCL
.opencl_funcs = {opencl_codelet, NULL},
#endif
.nbuffers = 1,
.modes = {STARPU_RW}
};
struct timeval start;
struct timeval end;
gettimeofday(&start, NULL);
unsigned i;
for (i = 0; i < niter; i++)
{
struct starpu_task *task = starpu_task_create();
task->cl = &cl;
task->callback_func = NULL;
task->handles[0] = float_array_handle;
int ret = starpu_task_submit(task);
if (STARPU_UNLIKELY(ret == -ENODEV))
{
FPRINTF(stderr, "No worker may execute this task\n");
exit(0);
}
}
starpu_task_wait_for_all();
/* update the array in RAM */
starpu_data_unregister(float_array_handle);
gettimeofday(&end, NULL);
FPRINTF(stderr, "array -> %f, %f, %f, %f\n", float_array[0],
float_array[1], float_array[2], float_array[3]);
if (float_array[0] != niter || float_array[0] != float_array[1] + float_array[2] + float_array[3])
{
FPRINTF(stderr, "Incorrect result\n");
ret = 1;
}
double timing = (double)((end.tv_sec - start.tv_sec)*1000000 +
(end.tv_usec - start.tv_usec));
FPRINTF(stderr, "%u elems took %f ms\n", niter, timing/1000);
starpu_shutdown();
return ret;
}
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