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/* { dg-do run } */
/* Stress-test omp_alloc/omp_malloc under concurrency. */
#include <omp.h>
#include <stdio.h>
#include <stdlib.h>
#pragma omp requires dynamic_allocators
#define N 1000
void
test (omp_allocator_handle_t allocator)
{
#pragma omp target map(to:allocator)
{
#pragma omp parallel for
for (int i = 0; i < N; i++)
for (int j = 0; j < N; j++)
{
int *p = omp_alloc (sizeof (int), allocator);
omp_free (p, allocator);
}
}
}
int
main ()
{
/* omp_low_lat_mem_alloc doesn't actually get low-latency memory on GPU. */
omp_alloctrait_t traits[1] = { { omp_atk_access, omp_atv_cgroup } };
omp_allocator_handle_t gpu_lowlat;
#pragma omp target map(from:gpu_lowlat)
gpu_lowlat = omp_init_allocator (omp_low_lat_mem_space, 1, traits);
// Smaller than low-latency memory limit
test (omp_default_mem_alloc);
test (omp_large_cap_mem_alloc);
test (omp_const_mem_alloc);
test (omp_high_bw_mem_alloc);
test (omp_low_lat_mem_alloc);
test (gpu_lowlat);
test (omp_cgroup_mem_alloc);
test (omp_pteam_mem_alloc);
test (omp_thread_mem_alloc);
return 0;
}
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