feb18-hello.c

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

int main(int argc, char** argv) {
    int rc;
    if ((rc = MPI_Init(&argc, &argv)) != MPI_SUCCESS) {
        printf("Error starting MPI porgram. Terminating.\n");
        MPI_Abort(MPI_COMM_WORLD, rc);
    }

    printf("Hello, world!\n");

    MPI_Finalize();

    return 0;
}