Viewing file:  teams-5.c (1.14 KB) -rw-r--r--
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/* { dg-do run } */
#include <stdlib.h>
#define EPS 0.00001
#define N 10000
void init (float *a, float *b, int n)
{
int i;
for (i = 0; i < n; i++)
{
a[i] = 0.1 * i;
b[i] = 0.01 * i * i;
}
}
void vec_mult_ref (float *p, float *v1, float *v2, int n)
{
int i;
for (i = 0; i < n; i++)
p[i] = v1[i] * v2[i];
}
void vec_mult (float *p, float *v1, float *v2, int n)
{
int i;
#pragma omp target teams map(to: v1[0:n], v2[:n]) map(from: p[0:n])
#pragma omp distribute simd
for (i = 0; i < n; i++)
p[i] = v1[i] * v2[i];
}
void check (float *a, float *b, int n)
{
int i;
for (i = 0 ; i < n ; i++)
{
float err = (a[i] == 0.0) ? b[i] : (b[i] - a[i]) / a[i];
if (((err > 0) ? err : -err) > EPS)
abort ();
}
}
int main ()
{
float *p1 = (float *) malloc (N * sizeof (float));
float *p2 = (float *) malloc (N * sizeof (float));
float *v1 = (float *) malloc (N * sizeof (float));
float *v2 = (float *) malloc (N * sizeof (float));
init (v1, v2, N);
vec_mult_ref (p1, v1, v2, N);
vec_mult (p2, v1, v2, N);
check (p1, p2, N);
free (p1);
free (p2);
free (v1);
free (v2);
return 0;
}
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