ubuntu-buildroot/output/build/host-gcc-final-11.4.0/libgomp/testsuite/libgomp.c/examples-4/target-1.c

64 lines
771 B
C

/* { dg-do run } */
#include <stdlib.h>
#define N 100000
void init (int *a1, int *a2)
{
int i, s = -1;
for (i = 0; i < N; i++)
{
a1[i] = s;
a2[i] = i;
s = -s;
}
}
void check (int *a, int *b)
{
int i;
for (i = 0; i < N; i++)
if (a[i] != b[i])
abort ();
}
void vec_mult_ref (int *p)
{
int i;
int v1[N], v2[N];
init (v1, v2);
for (i = 0; i < N; i++)
p[i] = v1[i] * v2[i];
}
void vec_mult (int *p)
{
int i;
int v1[N], v2[N];
init (v1, v2);
#pragma omp target map(p[0:N])
#pragma omp parallel for
for (i = 0; i < N; i++)
p[i] = v1[i] * v2[i];
}
int main ()
{
int p1[N], p2[N];
int v1[N], v2[N];
init (v1, v2);
vec_mult_ref (p1);
vec_mult (p2);
check (p1, p2);
return 0;
}