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/* -*- C -*-
*
* $HEADER$
*
* The most basic of MPI applications
*/
#include <stdio.h>
#include <unistd.h>
#include "mpi.h"
int main(int argc, char* argv[])
{
int rank, size;
MPI_Comm parent;
int msg;
printf("Slave [pid %ld] starting up!\n", (long)getpid());
MPI_Init(&argc, &argv);
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Comm_size(MPI_COMM_WORLD, &size);
MPI_Comm_get_parent(&parent);
MPI_Recv(&msg, 1, MPI_INT, 0, 1, parent, MPI_STATUS_IGNORE);
printf("Slave %d received msg: %d\n", rank, msg);
MPI_Comm_disconnect(&parent);
MPI_Finalize();
return 0;
}
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