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Dynamic Scheduler Variables

Your research environment job scheduler automatically creates a number of pseudo environment variables which are available to your job-scripts when they are running on research environment compute nodes, along with standard Linux variables. Useful values include the following:

  • $HOME The location of your home-directory
  • %u / $USER The Linux username of the submitting user. The %u substitution should only be used in your job scheduler filename directives.
  • $HOSTNAME The Linux hostname of the compute node running the job
  • %a / $SLURM_ARRAY_TASK_ID Job array ID (index) number. The %a substitution should only be used in your job scheduler filename directives1
  • %A / $SLURM_ARRAY_JOB_ID Job allocation number for an array job. The %A substitution should only be used in your job scheduler filename directives1
  • %j / $SLURM_JOBID Job allocation number. The %j substitution should only be used in your job scheduler filename directives

More information on this.

  1. These relate to task array jobs, which are covered in a later section. ↩↩