Parallelizing only the innermost loop with OpenMP

openmp-parallel-inner-loop.c

#include <stdio.h>
#include <time.h>
#include <omp.h>

int main ( void ) {
    int i, j;
    int me, n;

    #pragma omp parallel private(i,j,me,n)
    {
        me = omp_get_thread_num();
        n = omp_get_num_threads();
        printf( "Hello from %d/%d\n", me, n );
        #pragma omp barrier

        for ( i = 0; i < 100; i++ ) {
            #pragma omp for
            for ( j = 0; j < 10; j++ ) { 
                printf( "I am %d processing %d,%d\n", me, i, j );
                usleep( 500000 );
            }
            #pragma omp barrier
        }
    }
    return 0;
}