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

			int main(int argc, char * argv[]) {
			int myrank, mysize;
			int buf[100];
			MPI_Status status;

			MPI_Init(&argc, &argv);
			MPI_Comm_rank(MPI_COMM_WORLD, &myrank);
			MPI_Comm_size(MPI_COMM_WORLD, &mysize);

			if (mysize != 2)
			printf("Warning: this examples will most probably deadlock with a number "
			"of process different from 2.\n");

			if (myrank == 0) {
			MPI_Send(buf, 100, MPI_INT, 1, 0, MPI_COMM_WORLD);
			} else {
			MPI_Recv(buf, 100, MPI_INT, 0, 0, MPI_COMM_WORLD, &status);
			}

			MPI_Finalize();
			}

R11821/mpi/ping.c
8449e591e260master

ping.c
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