SLURM

SLURM is one of the most common job scheduler used in many high performance cluster computing severs (HPC). Here, I summarize useful SLURM commands.

• sbatch -C "CPU_GEN:HSW|CPU_GEN:BDW|CPU_GEN:SKX":
  • AVX2 support started with Haswell on Intel CPUs. To target any CPU generation after Haswell, we can specify constraits assuming that the cluster admin configured those properties in each node.
• scontrol hold <job ID>
• scontrol release <job ID>
• scontrol update job <job ID> Dependency=afterany:<previous job ID>
• scontrol update job <job ID> JobName="newJobName"
• scontrol update job <job ID> partition=<job partitions>
• scontrol update job <job ID> MinMemoryCPU=8000
• scontrol update job <job ID> TimeLimit=7-00:00:00
  • You cannot update the time limit of the resource requirements once the job gets started.
• scontrol show job <job ID>
• sacct --starttime 2020-08-01 --
  • This is useful when checking the job history. Please see the UBCCR page in reference for more details.
• sacct -l -j <job ID>: show time and memory usage

Reference

• https://slurm.schedmd.com/scontrol.html
• SLURM Check, Modify and Cancel a Job by scontrol & scancel Command, High Performance Computing at ICER, Michigan State University
• How to Retrieve Job History and Accounting, University at Buffalo Center for Computational Research