#include <mpi.h>
#include <stdio.h>
int main(int argc, char **argv) {
char message[30];
int rank, size;
MPI_Init(&argc, &argv);
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Comm_size(MPI_COMM_WORLD, &size);
printf("I'm %d of %d\n",rank,size);
if(rank == 0)
strcpy(message, "Hello World!");
MPI_Bcast(message, 30, MPI_CHAR, 0,
MPI_COMM_WORLD);
if(rank != 0)
printf("(%d) - Received %s\n", rank, message);
MPI_Finalize();
return 0;
}