blob: 7107502e070662a1e733b739c3d4e2de3837ccf9 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
|
#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_gangs(32) copy(ondev)
{
#pragma acc loop gang 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 = ix / ((N + 31) / 32);
int w = 0;
int v = 0;
val = (g << 16) | (w << 8) | v;
}
h += val;
}
if (t != h)
{
printf ("t=%x expected %x\n", t, h);
return 1;
}
return 0;
}
|