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This page provides assistance getting started with connecting to, and submitting jobs on the CSULB central High Performance Computing (HPC) cluster.

How to Access the Central HPC


Server name:

Via the Web

Command and Options




REQUIRED: The first line of your script, specifying the type of shell (in this case, bash) to use

#MSUB -l walltime=<dd:hh:mm:ss>

Provides the scheduler with the time needed for your job to run so resources can be allocated. If no walltime is provided, the default value is 00:01:00:00 (one hour).


Give the job a descriptive name

#MSUB -m abe

Sends an email if your job (a)borts, (b)egins, or (e)nds. You can use any combination of the 3 letters

#MSUB -M <your_emailaddress>

Specifies email address, can be a comma separated list of users.

#MSUB -l nodes=<N>:ppn=<p>
#MSUB -l procs=<n>

The first option specifies how many nodes and how many ppn (processors (cores) per node). The second option specifies how many processors total without restricting them to being on a specific number of nodes. Use only one of these lines, NOT both. If neither of these options are used, one core on one node will be allocated.

#MSUB -j oe

Joins the (o)utput and (e)rror files into a single file. By default the name of the output file will be of the form JOBNAME.oJOBID, and the file will be in the directory from which you submitted the job.

#MSUB -o <outlog>

Writes the output log for the job into a file named outlog (you can change this file name). If not specified, the output log is written to a file in the directory you submitted the job from that is named according to JOBNAME.oJOBID.

#MSUB -e <errlog>

Writes the error file for the job into a file named errlog (you can change this file name). If not specified, the error log is written to a file in the directory you submitted the job from that is named according to JOBNAME.eJOBID.

Submitting a Batch Job

Saved scripts can be submitted to the HPC via the command line. To submit your script type:

msub <name_of_script>

Managing Your Jobs




Shows all active jobs and there job numbers

showq -u <your_BeachID>

Shows your active jobs and their job numbers

checkjob <job_number>

Shows information about your specific job, including job status

checkjob -v <job_number>

Detailed report from checkjob which is useful for debugging

canceljob <job_number>

Cancels your job from the command line

canceljob ALL

Cancels all of your jobs from the command line

Contact for Help

For technical assistance, contact ITS HPC Support at

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