Retro68/gcc/libgomp/testsuite/libgomp.oacc-c-c++-common/loop-red-wv-1.c
Wolfgang Thaller 6fbf4226da gcc-9.1
2019-06-20 20:10:10 +02:00

54 lines
952 B
C

#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;
#pragma acc parallel num_workers(32) vector_length(32) copy(ondev)
{
#pragma acc loop worker 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;
}
}
for (ix = 0; ix < N; ix++)
{
int val = ix;
if(ondev)
{
int g = 0;
int w = (ix / 32) % 32;
int v = ix % 32;
val = (g << 16) | (w << 8) | v;
}
h += val;
}
if (t != h)
{
printf ("t=%x expected %x\n", t, h);
return 1;
}
return 0;
}