57 lines
953 B
C
57 lines
953 B
C
/* { dg-additional-options "-w" } */
|
|
|
|
#include <assert.h>
|
|
|
|
/* Test of reduction on parallel directive. */
|
|
|
|
#define ACTUAL_GANGS 256
|
|
|
|
int
|
|
main (int argc, char *argv[])
|
|
{
|
|
int res, res1 = 0, res2 = 0;
|
|
|
|
#if defined(ACC_DEVICE_TYPE_host)
|
|
# define GANGS 1
|
|
#else
|
|
# define GANGS 256
|
|
#endif
|
|
#pragma acc parallel num_gangs(GANGS) num_workers(32) vector_length(32) \
|
|
reduction(+:res1) copy(res2, res1)
|
|
{
|
|
res1 += 5;
|
|
|
|
#pragma acc atomic
|
|
res2 += 5;
|
|
}
|
|
res = GANGS * 5;
|
|
|
|
assert (res == res1);
|
|
assert (res == res2);
|
|
#undef GANGS
|
|
|
|
res = res1 = res2 = 1;
|
|
|
|
#if defined(ACC_DEVICE_TYPE_host)
|
|
# define GANGS 1
|
|
#else
|
|
# define GANGS 8
|
|
#endif
|
|
#pragma acc parallel num_gangs(GANGS) num_workers(32) vector_length(32) \
|
|
reduction(*:res1) copy(res1, res2)
|
|
{
|
|
res1 *= 5;
|
|
|
|
#pragma acc atomic
|
|
res2 *= 5;
|
|
}
|
|
for (int i = 0; i < GANGS; ++i)
|
|
res *= 5;
|
|
|
|
assert (res == res1);
|
|
assert (res == res2);
|
|
#undef GANGS
|
|
|
|
return 0;
|
|
}
|