The Course Development Environment

Logging In

ssh <your SSO ID>@tc.rnet.missouri.edu
<your SSO ID>@tc.rnet.missouri.edu's password: <your SSO Password>

Configuring Your Account

My .bashrc

The Critical Commands

module load  openmpi/openmpi-1.10.2;
module load mpe2/mpe2-2.4.9b;

Testing Your Account

The Code - hello.c
#include <stdio.h>
#include <unistd.h>  
#include <omp.h>
#include "mpi.h"

int main( int argc, char *argv[] )
{
    int rank,size,len;
    char name[MPI_MAX_PROCESSOR_NAME];
    MPI_Init( NULL, NULL );
    MPI_Comm_rank(MPI_COMM_WORLD, &rank);
    MPI_Comm_size(MPI_COMM_WORLD, &size);
    MPI_Get_processor_name(name, &len);
    #pragma omp parallel num_threads(4)
    printf( "Hello %s  from thread %d  rank %d of %d, in process %d running on %s.\n",argv[1],omp_get_thread_num(), rank, size,getpid(),name );
    MPI_Finalize();
    return 0;
}

The Build and Run
$ mpicc hello.c -o hello -fopenmp

$ mpirun -n 2 hello smith
Hello smith  from thread 0  rank 0 of 2, in process 11294 running on tc-login.red.lan.
Hello smith  from thread 3  rank 0 of 2, in process 11294 running on tc-login.red.lan.
Hello smith  from thread 2  rank 0 of 2, in process 11294 running on tc-login.red.lan.
Hello smith  from thread 1  rank 0 of 2, in process 11294 running on tc-login.red.lan.
Hello smith  from thread 0  rank 1 of 2, in process 11296 running on tc-login.red.lan.
Hello smith  from thread 3  rank 1 of 2, in process 11296 running on tc-login.red.lan.
Hello smith  from thread 2  rank 1 of 2, in process 11296 running on tc-login.red.lan.
Hello smith  from thread 1  rank 1 of 2, in process 11296 running on tc-login.red.lan.