From 58b59eaf7a410ce68eeff708ecac7434fea76aa5 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Roman=20Sl=C3=ADva?= <roman.sliva@vsb.cz> Date: Tue, 18 Jul 2023 15:04:07 +0200 Subject: [PATCH] Update slurm-job-submission-and-execution.md --- .../slurm-job-submission-and-execution.md | 19 ++++++++----------- 1 file changed, 8 insertions(+), 11 deletions(-) diff --git a/docs.it4i/general/slurm-job-submission-and-execution.md b/docs.it4i/general/slurm-job-submission-and-execution.md index 4885bb3a9..ac122ba26 100644 --- a/docs.it4i/general/slurm-job-submission-and-execution.md +++ b/docs.it4i/general/slurm-job-submission-and-execution.md @@ -16,23 +16,20 @@ A `man` page exists for all Slurm commands, as well as `--help` command option, | :------: | :-------------------------------------------------------------------------------------------------------------------------- | | sinfo | View information about nodes and partitions. | | squeue | View information about jobs located in the scheduling queue. | -| sacct | Display accounting data for all jobs and job steps in the job accounting log or Slurm database. | +| sacct | View information about jobs from Slurm accounting database. | | scontrol | View or modify jobs, nodes, partitions, reservations, and other Slurm objects. | | | -| sbatch | Submit a batch script to Slurm. | +| sbatch | Submit a batch job to Slurm. | | salloc | Run an interactive job. | -| srun | Run parallel tasks. | -| scancel | Cancel job. | +| srun | Run parallel job. | +| scancel | Cancel job. | ### Job Submission Options -Slurm provides three different commands for job submission: `salloc`, `srun`, and `sbatch`. Each of those serves a slightly different purpose; `salloc` is used to obtain an allocation, `srun` runs parallel jobs (and obtains appropriate allocation first if necessary), and serves as Slurm's native way of executing MPI-enabled applications, and `sbatch` reads a batch script, asks for required allocation, and then executes it. While all of these may be used interchangeably, their specifics make them more useful in different scenarios: - -| Command | Preferred use case | -| :-----: | :------------------------------------------------------------------------------ | -| sbatch | Production jobs | -| salloc | Interactive jobs, debugging | -| srun | Quick interactive jobs, short analysis of output data, running MPI applications | +Slurm provides three different commands for job submission: `salloc`, `sbatch`, and `srun`. Each of those serves a slightly different purpose; +`salloc` is used to run interactive job - behaviour of this command at IT4Innovation's clusters might differ from behaviour at other clusters, it is alternative to PBS qsub -I command. +`sbatch` is used to submit a batch script to Slurm, it is alternative to PBS qsub command used without -I option. +`srun` behaviour of the command depends on whether it was run from inside the job or from outside, from inside of the job command serves as Slurm's native way of executing MPI-enabled applications, from outside of the job command obtains appropriate allocation first and then run a specified command in parallel. ## Batch Mode -- GitLab