• A tutorial of running a MPI job on Eddie

A tutorial of running MPI job on Eddie

Step 1. Login to Eddie and set environment by adding exist modules

$ ssh eddie.ecdf.ed.ac.uk

$ module add lam/gcc

Step 2. Build MPI codes

$ cd /home/ywan/mpi_test/hello
$ mpicc -o hello hello.c

Step 3. Write a SGE job script

hello.sh

#!/bin/sh
###################################################
#                                                 #  
# A SGE batch job template for ECDF Cluster eddie #
#                                                 #
# by ECDF System Team                             # 
# ecdf-systems-team@lists.ed.ac.uk                #
#                                                 #
###################################################

# Grid Engine options

#$ -cwd
#$ -l h_rt=00:05:00
#$ -N hello


# initialise environment module

. /etc/profile

# use LAM/MPI with Intel (icc,ifort) Compiler

#module add intel/cce
#module add intel/fce
#module add lam/intel

# use LAM/MPI with GNU (gcc,g++,g77,gfortran) Compiler 

module add lam/gcc

mpirun -np $NSLOTS ./hello

Step 4. Submit job to Grid Engine

$ qsub -pe lam 8 ./hello.sh