Submit a job

This is a simple guide to get your jobs up and running. For more advanced Slurm features, see the Slurm User Guide for Great Lakes. 

Batch Jobs

Most work will be queued to be run on Great Lakes and is described through a batch script. The sbatch command is used to submit a batch script to Slurm. To submit a batch script simply run the following from a shared file system; those include your home directory, /scratch, and any directory under /nfs that you can normally use in a job on Flux. Output will be sent to this working directory (jobName-jobID.log). Do not submit jobs from /tmp or any of its subdirectories.

$ sbatch myJob.sh

The batch job script is composed of three main components:

  • The interpreter used to execute the script
  • #SBATCH directives that convey submission options
  • The application(s) to execute along with its input arguments and options

Example:

#!/bin/bash # The interpreter used to execute the script

# “#SBATCH” directives that convey submission options:

#SBATCH --job-name=example_job

#SBATCH --mail-type=BEGIN,END

#SBATCH --nodes=1

#SBATCH --ntasks-per-node=1

#SBATCH --mem-per-cpu=1000m #SBATCH --time=10:00

#SBATCH --account=test #SBATCH --partition=standard

# The application(s) to execute along with its input arguments and options: /bin/hostname sleep 60

How many nodes and processors you request will depend on the capability of your software and what it can do. There are four common scenarios that are provided in examples in this guide.