#include "mpi.h"
#include <stdio.h>

int main(int argc, char *argv[])
{
	int id;
	int p;
	MPI_Init(&argc, &argv);
	MPI_Comm_rank(MPI_COMM_WORLD, &id);
	MPI_Comm_size(MPI_COMM_WORLD, &p);
	printf("Hello, world, from process %d\n", id);
	MPI_Finalize(); 
	return 0;
}