mirror of
https://github.com/autc04/Retro68.git
synced 2024-12-04 16:50:57 +00:00
77 lines
1.3 KiB
C
77 lines
1.3 KiB
C
/* { dg-do run } */
|
|
/* { dg-additional-options "-msse2" { target sse2_runtime } } */
|
|
/* { dg-additional-options "-mavx" { target avx_runtime } } */
|
|
|
|
#define N 128
|
|
#define M 16
|
|
#define EPS 0.0000000000000001
|
|
#define SAFELEN 16
|
|
|
|
#include <stdlib.h>
|
|
|
|
void init(double a[N][N], double b[N][N], int n)
|
|
{
|
|
int i, j, s = -1;
|
|
for (i = 0; i < n; i++)
|
|
{
|
|
for (j = 0; j < n; j++)
|
|
{
|
|
a[i][j] = i * j * s;
|
|
b[i][j] = i + j + s;
|
|
s = -s;
|
|
}
|
|
}
|
|
}
|
|
|
|
void work( double a[N][N], double b[N][N], double c[N][N], int n )
|
|
{
|
|
int i, j;
|
|
double tmp;
|
|
#pragma omp for simd collapse(2) private(tmp)
|
|
for (i = 0; i < n; i++)
|
|
{
|
|
for (j = 0; j < n; j++)
|
|
{
|
|
tmp = a[i][j] + b[i][j];
|
|
c[i][j] = tmp;
|
|
}
|
|
}
|
|
}
|
|
|
|
void work_ref( double a[N][N], double b[N][N], double c[N][N], int n )
|
|
{
|
|
int i, j;
|
|
double tmp;
|
|
for (i = 0; i < n; i++)
|
|
{
|
|
for (j = 0; j < n; j++)
|
|
{
|
|
tmp = a[i][j] + b[i][j];
|
|
c[i][j] = tmp;
|
|
}
|
|
}
|
|
}
|
|
|
|
void check (double a[N][N], double b[N][N])
|
|
{
|
|
int i, j;
|
|
for (i = 0; i < N; i++)
|
|
for (j = 0; j < N; j++)
|
|
if (a[i][j] - b[i][j] > EPS || b[i][j] - a[i][j] > EPS)
|
|
abort ();
|
|
}
|
|
|
|
int main ()
|
|
{
|
|
double a[N][N], b[N][N], c[N][N], c_ref[N][N];
|
|
|
|
init(a, b, N);
|
|
|
|
work(a, b, c, N);
|
|
work_ref(a, b, c_ref, N);
|
|
|
|
check(c, c_ref);
|
|
|
|
return 0;
|
|
}
|