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There are several legitimate reasons for wanting to run multiple single processor jobs in parallel within a single PBS script. For example, you may want to run 8 MATLAB jobs which require a toolbox that only has 4 licensed users. Only 1 MATLAB license is checked out if all 8 jobs are run on the same system. An example PBS script to do this task would look like
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#!/bin/bash
#PBS -c s
#PBS -j oe
#PBS -m ae
#PBS -N jobname
#PBS -M jc123456@jcu.edu.au
#PBS -l walltime=999:00:00
#PBS -l nodes=1:ppn=8
echo "------------------------------------------------------"
echo " This job is allocated 8 cpus on "
cat $PBS_NODEFILE
echo "------------------------------------------------------"
echo "PBS: Submitted to $PBS_QUEUE@$PBS_O_HOST"
echo "PBS: Working directory is $PBS_O_WORKDIR"
echo "PBS: Job identifier is $PBS_JOBID"
echo "PBS: Job name is $PBS_JOBNAME"
echo "------------------------------------------------------"
cd $PBS_O_WORKDIR
source /etc/profile.d/modules.sh
module load matlab
matlab -r myjob1.m &
matlab -r myjob2.m &
matlab -r myjob3.m &
matlab -r myjob4.m &
matlab -r myjob5.m &
matlab -r myjob6.m &
matlab -r myjob7.m &
matlab -r myjob8.m &
wait # Wait for background jobs to finish.
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To submit the job for execution on a HPRC compute node simply enter the command:
Note: The echo commands in the PBS script example above are informational only.
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| Multiple 1-CPU Jobs |
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| Multiple 1-CPU Jobs |
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