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UMBC High Performance Computing Facility
Please note that this page is under construction. We are documenting the 240-node cluster maya that will be available after Summer 2014. Currently, the 84-node cluster tara still operates independently, until it becomes part of maya at the end of Summer 2014. Please see the 2013 Resources Pages under the Resources tab for tara information.
How to run SAS programs on tara

Introduction

Running SAS on the cluster is similar to running any other serial job. Make sure you've read the tutorial for C programs first, to understand the basics. We will not demonstrate any parallel code here, so reading just the serial section is okay for now.

For more information about the software, see the SAS website.

Example

Here is a sample script that plots homework scores versus test scores in one EPS file and test scores versus homework scores in another EPS file.
data grades;
input homework test;
cards;
48 66
72 75
61 70
88 79
75 91
92 93
77 90
58 69
63 68
;
filename file1 'homework-test.eps';
goptions reset=global DEVICE=pslepsfc gsfmode=replace gsfname=file1 hsize=4 vsize=3;
proc gplot;
plot homework*test;
run;
filename file2 'test-homework.eps';
goptions reset=global DEVICE=pslepsfc gsfmode=replace gsfname=file2 hsize=4 vsize=3;
proc gplot2;
plot test*homework;
run;


Download: ../code/plotgrades-SAS/plotgrades.sas
In order to run this script on the cluster nodes, we will need a batch script
#!/bin/bash
#SBATCH --job-name=plotgrades
#SBATCH --output=slurm.out
#SBATCH --error=slurm.err
#SBATCH --partition=develop

sas plotgrades.sas

Download: ../code/plotgrades-SAS/run.slurm
We can then run that script
[araim1@tara-fe1 plotgrades-SAS]$ slurm run.slurm
sbatch: Submitted batch job 2623
[araim1@tara-fe1 plotgrades-SAS]$
Once your job completes, it should produce several files.
[straha1@tara-fe1 plotgrades-SAS]$ ls
homework-test.eps  plotgrades.log    test-homework.eps
run.slurm          plotgrades.sas    test-homework.gif
[straha1@tara-fe1 plotgrades-SAS]$
The slurm.err and slurm.out files contain everything that your job printed to its error and output streams, respectively. The plotgrades.log file contains detailed information about what SAS did while running your plotgrades.sas program. The two EPS files homework-test.eps and test-homework.eps are scatter plots that your program created. They should look something like this

GIF version of test-homework.eps

except that we have converted them to GIF to display above. You can download sample output files using these links