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#include <stdlib.h>
#define N (1024 * 512)
#define COUNTERTYPE unsigned int
int
main (void)
{
unsigned int *__restrict a;
unsigned int *__restrict b;
unsigned int *__restrict c;
a = (unsigned int *__restrict)malloc (N * sizeof (unsigned int));
b = (unsigned int *__restrict)malloc (N * sizeof (unsigned int));
c = (unsigned int *__restrict)malloc (N * sizeof (unsigned int));
#pragma acc data copyout (a[0:N])
{
#pragma acc kernels present (a[0:N])
{
for (COUNTERTYPE i = 0; i < N; i++)
a[i] = i * 2;
}
}
#pragma acc data copyout (b[0:N])
{
#pragma acc kernels present (b[0:N])
{
for (COUNTERTYPE i = 0; i < N; i++)
b[i] = i * 4;
}
}
#pragma acc data copyin (a[0:N], b[0:N]) copyout (c[0:N])
{
#pragma acc kernels present (a[0:N], b[0:N], c[0:N])
{
for (COUNTERTYPE ii = 0; ii < N; ii++)
c[ii] = a[ii] + b[ii];
}
}
for (COUNTERTYPE i = 0; i < N; i++)
if (c[i] != a[i] + b[i])
abort ();
free (a);
free (b);
free (c);
return 0;
}
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