Annotated SLURM Script

From UFRC
Revision as of 14:12, 24 May 2016 by Moskalenko (talk | contribs)
Jump to navigation Jump to search
Hpg2 wiki logo.png

HiPerGator 2.0 documentation

This is a walk-through for a basic SLURM scheduler job script. Annotations are marked with bullet points. You can click on the link below to download the raw job script file without the annotation. Values in brackets are placeholders. You need to replace them with your own values. E.g. Change '<job name>' to something like 'blast_proj22'. We will write additional documentation on more complex job layouts for MPI jobs and other situations when a simple number of processor cores is not sufficient.

Download raw source of the [{{#fileLink: run.sh}} run.sh] file.

  • Set the shell to use

{{#fileAnchor: run.sh}}

#!/bin/bash
Common arguments
  • Name the job to make it easier to see in the job queue

{{#fileAnchor: run.sh}}

#SBATCH --job-name=<JOBNAME>
Email
Your email address to use for all batch system communications

{{#fileAnchor: run.sh}}

##SBATCH --mail-user=<EMAIL>
What emails to send
NONE - no emails
ALL - all emails
END,FAIL - only email if the job fails and email the summary at the end of the job

{{#fileAnchor: run.sh}}

#SBATCH --mail-type=FAIL,END
Standard Output and Error log files
Use file patterns
%j - job id
%A-$a - Array job id (A) and task id (a)

{{#fileAnchor: run.sh}}

#SBATCH --output <my_job-%j.out>
#SBATCH --error <my_job-%j.err>
Number of tasks (usually translate to processor cores) to use

{{#fileAnchor: run.sh}}

#SBATCH --ntasks=1
Memory per cpu core. Default is megabytes, but units can be specified with M or G for megabytes or Gigabytes.

{{#fileAnchor: run.sh}}

#SBATCH --mem-per-cpu=2G
Job run time in [DAYS]
HOURS:MINUTES:SECONDS
[DAYS] are optional, use when it is convenient

{{#fileAnchor: run.sh}}

#SBATCH --time=72:00:00
Optional
A group to use if you belong to multiple groups. Otherwise, do not use.

{{#fileAnchor: run.sh}}

#SBATCH --account=<GROUP>
A job array, which will create many jobs (called array tasks) different only in the '$SLURM_ARRAY_TASK_ID' variable, similar to Torque_Job_Arrays on HiPerGator 1

{{#fileAnchor: run.sh}}

#SBATCH --array=<BEGIN-END>
Example of five tasks
#SBATCH --array=1-5
END OF PBS SETTINGS

Recommended convenient shell code to put into your job script
  • Add host, time, and directory name for later troubleshooting

{{#fileAnchor: run.sh}}

date;hostname;pwd

Below is the shell script part - the commands you will run to analyze your data. The following is an example.

  • Load the software you need

{{#fileAnchor: run.sh}}

module load ncbi_blast
  • Run the program

{{#fileAnchor: run.sh}}

blastn -db nt -query input.fa -outfmt 6 -out results.xml

date