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#include <stdio.h>
#include <openacc.h>
#include <gomp-constants.h>
#define N (32*32*32+17)
int main ()
{
int ix;
int ondev = 0;
int t = 0, h = 0;
int vectorsize;
#pragma acc parallel vector_length(32) copy(ondev) copyout(vectorsize)
{
#pragma acc loop vector reduction (+:t)
for (unsigned ix = 0; ix < N; ix++)
{
int val = ix;
if (acc_on_device (acc_device_not_host))
{
int g, w, v;
g = __builtin_goacc_parlevel_id (GOMP_DIM_GANG);
w = __builtin_goacc_parlevel_id (GOMP_DIM_WORKER);
v = __builtin_goacc_parlevel_id (GOMP_DIM_VECTOR);
val = (g << 16) | (w << 8) | v;
ondev = 1;
}
t += val;
}
vectorsize = __builtin_goacc_parlevel_size (GOMP_DIM_VECTOR);
}
for (ix = 0; ix < N; ix++)
{
int val = ix;
if (ondev)
{
int g = 0;
int w = 0;
int v = ix % vectorsize;
val = (g << 16) | (w << 8) | v;
}
h += val;
}
if (t != h)
{
printf ("t=%x expected %x\n", t, h);
return 1;
}
return 0;
}
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