HP XC System Software Administration Guide Version 3.2

16.12 Load Indexes and Resource Information
LSF-HPC with SLURM gathers limited resource information and load indexes from the LSF
execution host and from its integration with SLURM. Not all indexes are reported because SLURM
does not provide the same information that LSF-HPC with SLURM usually reports.
The LSF lshosts and lsload commands are two common commands for obtaining resource
information from LSF-HPC with SLURM.
The lshosts command reports the following resource information:
• ncpus
The total number of available processors within the SLURM lsf partition.
This value is calculated as the minimum value between the number of processors in all
available nodes in the lsf partition and the number of licensed cores. If total number of
usable cores is 0, LIM sets the value of ncpus to 1 and closes the host.
• maxmem
The minimum value of configured SLURM memory for all nodes.
This value represents the maximum value of memory on the node with the least memory.
Running a job on all nodes must account for this value.
This value is calculated as a minimal value over all the compute nodes.
• maxtmp
The minimum value of configured SLURM TmpDisk space for all nodes.
This value represents the maximum value of disk space on the node with the least amount
of disk space. Running a job on all nodes must account for this value.
This value is calculated as a minimal value over all the compute nodes.
The following is an example of the LSF lshosts command.
$ lshosts
HOST_NAME type model cpuf ncpus maxmem maxswp server RESOURCES
lsfhost.loc SLINUX6 Opteron8 16.0 22 2048M - Yes (slurm)
The lshosts command reports a hyphen (-) for all the other load index and resource information.
Initially, SLURM is not configured with any memory or temporary disk space, so LIM reports
the default value of 1 MB for each index.
For more information on the lshosts command, see lshosts(1) .
The lsload command reports the load index, that is, the number of current login users on the
LSF execution host.
The following is an example of the LSF lsload command.
$ lsload
HOST_NAME status r15s r1m r15m ut pg ls it tmp swp mem
lsfhost.localdo ok - - - - - 1 - - - -
For more information on the lsload command, see lsload(1) .
In these examples, 22 processors on this HP XC system are available for use by LSF-HPC with
SLURM. You can verify this information, which is obtained by LSF-HPC with SLURM, with the
SLURM sinfo command:
$ sinfo --Node --long
NODELIST NODES PARTITION STATE CPUS MEMORY TMP_DISK ...
xc5n[1-10,16] 11 lsf idle 2 2048 1 ...
The output of the sinfo command shows that 11 nodes are available, and that each node has 2
processors.
The LSF lshosts command and the SLURM sinfo command both report the memory for each
node as 2,048 MB. This memory value is configured for each node in
202 Managing LSF