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Slurm Basic Commands 19 June 2019 merlin6_sidebar /merlin6/slurm-basics.html

In this document some basic commands for using Slurm are showed. Advanced examples for some of these are explained in other Merlin6 Slurm pages. You can always use man <command> pages for more information about options and examples.

Basic commands

Useful commands for the slurm:

sinfo            # to see the name of nodes, their occupancy, 
                 # name of slurm partitions, limits (try out with "-l" option)
squeue           # to see the currently running/waiting jobs in slurm 
                 # (additional "-l" option may also be useful)
sbatch Script.sh # to submit a script (example below) to the slurm.
srun <command>   # to submit a command to Slurm. Same options as in 'sbatch' can be used.
salloc           # to allocate computing nodes. Use for interactive runs.
scancel job_id   # to cancel slurm job, job id is the numeric id, seen by the squeue.
sview            # X interface for managing jobs and track job run information.
seff             # Calculates the efficiency of a job
sjstat           # List attributes of jobs under the SLURM control
sacct            # Show job accounting, useful for checking details of finished jobs.

Advanced basic commands:

sinfo -N -l      # list nodes, state, resources (#CPUs, memory per node, ...), etc.
sshare -a        # to list shares of associations to a cluster
sprio -l         # to view the factors that comprise a job's scheduling priority 
                 # add '-u <username>' for filtering user

Show information for specific cluster

By default, any of the above commands shows information of the local cluster which is *merlin6.

If you want to see the same information for merlin5 you have to add the parameter --clusters=merlin5. If you want to see both clusters at the same time, add the option --federation.

Examples:

sinfo                      # 'sinfo' local cluster which is 'merlin6'
sinfo --clusters=merlin5   # 'sinfo' non-local cluster 'merlin5'
sinfo --federation         # 'sinfo' all clusters which are 'merlin5' & 'merlin6'
squeue                     # 'squeue' local cluster which is 'merlin6'
squeue --clusters=merlin5  # 'squeue' non-local cluster 'merlin5'
squeue --federation        # 'squeue' all clusters which are 'merlin5' & 'merlin6'