#include <stdio.h>

#include "mpi.h"

int main(int argc, char **argv) {

    int rank, size;

    MPI_Init( &argc, &argv );

    MPI_Comm_size( MPI_COMM_WORLD, &size );

    MPI_Comm_rank( MPI_COMM_WORLD, &rank );

    printf( "Hello world from process %d of %d\n", rank, size );

    MPI_Finalize();

    return 0;

}