Slurm

install slurm under fedora 21

1. Build slurm

rpmbuild -ta slurm*.tar.bz2

1. Install rpms.

yum -y install munge slurm slurm-plugins slurm-munge

1. configure munge

dd if=/dev/random bs=1 count=1024 > /etc/munge/munge.key chmod 0600 /etc/munge/munge.key chown munge /etc/munge/munge.key systemctl start munge

1. Change config to better suit fedora 21

SlurmctldPidFile=/var/run/slurm/slurmctld.pid
SlurmdPidFile=/var/run/slurm/slurmd.pid
StateSaveLocation=/var/lib/slurm/slurm.state
SlurmdSpoolDir=/var/lib/slurm/slurm.spool

1. create corresponding directories.

DIR=/var/run/slurm;chown slurm:slurm $DIR ; chmod 755 $DIR

1. update systemd config files for slurm daemons to point to new location of pid file.

vim /usr/lib/systemd/system/slurmctld.service /usr/lib/systemd/system/slurmd.service

test installation

1. Test the installation.

Generate a credential on stdout.

munge -n

Check if a credential can be locally decoded.

munge -n | unmunge

Check if a credential can be remotely decoded.

munge -n | ssh somehost unmunge

Run a quick benchmark.

remunge

1. how does it work

scontrol show config

1. check priorities of jobs using the command

scontrol show job".

1. Submit a job

sbatch /tmp/slurm_test_1

1. List jobs:

squeue

1. Get job details:

scontrol show job 106

1. Suspend a job (root only):

scontrol suspend 135

1. Resume a job (root only):

scontrol resume 135

1. Kill a job. Users can kill their own jobs, root can kill any job.

scancel 135

1. Hold a job

scontrol hold 139

1. Release a job:

scontrol release 139

1. List partitions:

sinfo

1. example job script.

#!/usr/bin/env bash
#SBATCH -p defq
#SBATCH -J simple
sleep 60