HP XC System Software Administration Guide Version 3.1

SLURM offers a set of utilities that provide information about SLURM configuration, state, and jobs, most
notably scontrol, squeue, and sinfo. See scontrol(1), squeue(1), and sinfo(1) for more information about
these utilities.
SLURM enables you to collect and analyze job accounting information. “Configuring Job Accounting”
(page 167) describes how to configure job accounting information on the HP XC system.
“SLURM Troubleshooting” (page 240) provides SLURM troubleshooting information.
14.2 Configuring SLURM
The HP XC system provides global and local directories for SLURM files:
• The /hptc_cluster/slurm directory is the sharable location for SLURM files that need to be shared
between the nodes. The SLURM slurmctld state files, job logging files, and the slurm.conf
configuration file reside there.
• The location for SLURM files that should remain local to a given node is /var/slurm; the files in
this directory are not shared between nodes. All SLURM daemon logs and slurmd state information
are stored there.
As a resource manager on an HP XC system, SLURM allocates exclusive or nonexclusive access to resources
on compute nodes for users to perform work; it provides a framework to start, execute, and monitor work
(normally parallel jobs) on the set of allocated nodes.
All SLURM configuration options are set and stored in the /hptc_cluster/slurm/etc/slurm.conf
file; For information about available options, see slurm.conf(5). The slurm.conf file also contains useful
commentary on the purpose of each setting.
The following SLURM configuration settings are preset statically on HP XC systems:
StateSaveLocation=/hptc_cluster/slurm/state
SlurmdSpoolDir=/var/slurm/state
SlurmUser=slurm
SlurmctldLogFile=/var/slurm/log/slurmctld.log
SlurmdLogFile=/var/slurm/log/slurmd.log
SlurmctldPidFile=/var/slurm/run/slurmctld.pid
SlurmdPidFile=/var/slurm/run/slurmd.pid
AuthType=auth/munge
JobCompType=jobcomp/filetxt
SwitchType=switch/none
JobCompLoc=/hptc_cluster/slurm/job/slurm.job.log
JobAcctType=jobacct/log
JobAcctLoc=/hptc_cluster/slurm/job/jobacct.log
ReturnToService=1
PropagateResourceLimitsExcept=RLIMIT_NPROC
The slurm.conf file must be available on each node of the HP XC system.
Table 14-1 displays the SLURM configuration settings that are set (and, if necessary, adjusted) during the
execution of the cluster_config utility.
Table 14-1 SLURM Configuration Settings
Default Value*Setting
Lowest-numbered resource management node
ControlMachine
Second-lowest resource management node (if available)
BackupController
'slurm'SlurmUser
All compute nodes, plus 'Procs=2'NodeName
'lsf RootOnly=YES Shared=FORCE Nodes=compute_nodesPartitionName
158 Managing SLURM