xref: /llvm-project/openmp/runtime/test/api/omp_pinned.c (revision ac52c8f5897958be2074e079197bf197824d0486)
1 // RUN: %libomp-compile-and-run
2 // RUN: env OMP_ALLOCATOR=omp_default_mem_space:pinned=true %libomp-run
3 
4 #include <omp.h>
5 
main()6 int main() {
7   omp_alloctrait_t pinned_trait[1] = {{omp_atk_pinned, omp_atv_true}};
8   omp_allocator_handle_t pinned_alloc =
9       omp_init_allocator(omp_default_mem_space, 1, pinned_trait);
10   omp_allocator_handle_t default_alloc = omp_get_default_allocator();
11   double *a = (double *)omp_alloc(10 * sizeof(double), pinned_alloc);
12   double *b = (double *)omp_alloc(10 * sizeof(double), default_alloc);
13 
14   if (!a || !b) return 1;
15 
16 #pragma omp parallel for
17   for (int i = 0; i < 10; i++) {
18     a[i] = 0;
19     b[i] = 1;
20   }
21 
22   for (int i = 0; i < 10; i++)
23     if (a[i] != 0 || b[i] != 1) return 1;
24 
25   omp_free(a, pinned_alloc);
26   omp_free(b, default_alloc);
27 
28   return 0;
29 }
30