starpu-max/tests/openmp/taskloop.c

#include <pthread.h>
#include <starpu.h>
#include <stdio.h>
#include "../helper.h"

/*
 * Check the OpenMP orphaned task support.
 */

#if !defined(STARPU_OPENMP)
int main(void)
{
   return STARPU_TEST_SKIPPED;
}
#else
__attribute__((constructor))
static void omp_constructor(void)
{
   int ret = starpu_omp_init();
   STARPU_CHECK_RETURN_VALUE(ret, "starpu_omp_init");
}

__attribute__((destructor))
static void omp_destructor(void)
{
   starpu_omp_shutdown();
}

void taskloop_callback(unsigned long long begin_i, unsigned long long end_i) {
   int worker_id;
   pthread_t tid;
   tid = pthread_self();
   worker_id = starpu_worker_get_id();
   printf ("begin = %llu , end = %llu, %p\n", begin_i, end_i, (void *)starpu_task_get_current());
}

void taskloop_callback_wrapper(void *buffers[], void *_args)
{
   (void) buffers;
   struct starpu_omp_task_region_attr * args = _args;
   taskloop_callback(args->begin_i, args->end_i);
}

int
main (void)
{
   struct starpu_omp_task_region_attr attr;
   memset(&attr, 0, sizeof(attr));
#ifdef STARPU_SIMGRID
   attr.cl.model         = &starpu_perfmodel_nop;
#endif
   attr.cl.flags         = STARPU_CODELET_SIMGRID_EXECUTE;
   attr.cl.cpu_funcs[0]  = taskloop_callback_wrapper;
   attr.cl_arg           = &attr;
   attr.cl.where         = STARPU_CPU;
   attr.if_clause        = 1;
   attr.final_clause     = 0;
   attr.untied_clause    = 1;
   attr.mergeable_clause = 0;
   attr.nogroup_clause   = 0;
   attr.is_loop          = 0;
   attr.collapse         = 0;
   attr.num_tasks        = 5;
   attr.nb_iterations    = 400;
   attr.grainsize        = 130;

   starpu_omp_taskloop_inline_begin(&attr);
   starpu_omp_taskloop_inline_end(&attr);
   return 0;
}
#endif