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#include <stdlib.h>
/* Test asyncronous attach and detach operation. */
typedef struct {
int *a;
int *b;
} mystruct;
int
main (int argc, char* argv[])
{
const int N = 1024;
mystruct m;
int i;
m.a = (int *) malloc (N * sizeof (int));
m.b = (int *) malloc (N * sizeof (int));
for (i = 0; i < N; i++)
{
m.a[i] = 0;
m.b[i] = 0;
}
#pragma acc enter data copyin(m)
for (int i = 0; i < 99; i++)
{
int j;
#pragma acc parallel loop copy(m.a[0:N]) async(i % 2)
for (j = 0; j < N; j++)
m.a[j]++;
#pragma acc parallel loop copy(m.b[0:N]) async((i + 1) % 2)
for (j = 0; j < N; j++)
m.b[j]++;
}
#pragma acc exit data copyout(m) wait(0, 1)
for (i = 0; i < N; i++)
{
if (m.a[i] != 99)
abort ();
if (m.b[i] != 99)
abort ();
}
free (m.a);
free (m.b);
return 0;
}
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