Seff
seff
[edit | edit source]Overview
[edit | edit source]seff (Slurm Efficiency) is a command used in Slurm Workload Manager to report the efficiency of a job. It calculates the CPU and memory efficiency based on the resources requested and the resources used by a job.
Usage
[edit | edit source]To use seff, run: <source lang="bash"> seff [job_id] </source> Where [job_id] is the ID of the Slurm job.
Output
[edit | edit source]The output of seff includes:
- CPU Efficiency: Percentage of the allocated CPU that was actually used.
- Memory Efficiency: Percentage of the allocated memory that was actually used.
Examples
[edit | edit source]<source lang="bash"> % seff 81080
Job ID: 81080 Cluster: babel-cluster User/Group: dvosler/dvosler State: COMPLETED (exit code 0) Nodes: 1 Cores per node: 4 CPU Utilized: 00:19:55 CPU Efficiency: 98.92% of 00:20:08 core-walltime Job Wall-clock time: 00:05:02 Memory Utilized: 1.74 GB Memory Efficiency: 86.85% of 2.00 GB </source>