Does openmp support nested loop?

Does openmp support nested loop?

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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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