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Does openmp support nested loop?
- From: hx w <ye_hx_w at yahoo dot com dot cn>
- To: gcc mail-list gcc <gcc at gcc dot gnu dot org>
- Date: Thu, 25 Nov 2004 11:02:01 +0800 (CST)
- Subject: Does openmp support nested loop?
Hello, frineds,
i am studying the openmp API. I don't know clearly
about that how to increase the performence at the
nested loop through paralleling. Does openmp support
the nested loop?
As follows:
=============================
#include <stdio.h>
int main()
{
int i,j;
for (i=0; i<=10; i++)
for ( j=0; j<=10; j++ )
larg_compute_function();
exit(0);
}
==============================
I modified:
==============================
#include <stdio.h>
#include <omp.h>
int main()
{
int i,j;
omp_set_num_threads(4);
#pragma omp parallel for
for (i=0; i<=10; i++)
#pragma omp parallel for
for ( j=0; j<=10; j++ )
larg_compute_function();
exit(0);
}
=============================
After modifying, can i increasing the performence?
Any suggestions will be welcome!
Thanks!
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