HP XC System 3.x Software - Manual (Page 91)

LSF-HPC daemons run on only one node in the HP XC system, so the bhosts command will list one host,
which represents all the resources of the HP XC system. The total number of cores for that host should be
equal to the total number of cores assigned to the SLURM lsf partition.
By default, this command returns the host name, host status, and job state statistics.
The following example shows the output from the bhosts command:
$ bhosts
HOST_NAME STATUS JL/U MAX NJOBS RUN SSUSP USUSP RSV
lsfhost.localdomain ok - 16 0 0 0 0 0
Of note in the bhosts output:
• The HOST_NAME column displays the name of the LSF execution host.
• The MAX column displays the total core count (usable cores) of all available computer nodes in the
lsf
partition.
• The STATUS column shows the state of LSF-HPC and displays a status of either ok or closed.
• The NJOBS column displays the number of jobs. Note that in LSF terminology, a parallel job with 10
tasks counts as 10 jobs.
10.10.2 Getting Information About the LSF Execution Host Node
The lshosts command displays resource information about the LSF-HPC cluster. This command is useful
for verifying machine-specific information.
LSF-HPC daemons run on only one node in the HP XC system, so the lshosts command will list one
host — which represents all the resources assigned to it by the HP XC system. The total number of cores
for that host should be equal to the total number of cores assigned to the SLURM lsf partition.
By default, lshosts returns the following information: host name, host type, host model, core factor,
number of cores, total memory, total swap space, server information, and static resources.
The following example shows the output from the lshosts command:
$ lshosts
HOST_NAME type model cpuf ncpus maxmem maxswp server RESOURCES
lsfhost.loc SLINUX6 Itanium2 16.0 12 3456M - Yes (slurm)
n7 UNKNOWN UNKNOWN_ 1.0 - - - No ()
n8 UNKNOWN UNKNOWN_ 1.0 - - - No ()
n2 UNKNOWN UNKNOWN_ 1.0 - - - No ()
Of note in the lshosts output:
•
The HOST_NAME column displays the name of the LSF execution host, lsfhost.localdomain and
any other HP XC nodes that have been granted a floating client license because LSF commands were
executed on them. LSF-HPC does not know about these floating client hosts, so they are listed as
UNKNOWN
types and models.
• The type column displays the type of resource. This value is SLINUX64 for all HP XC systems.
• The ncpus column displays the total core count (usable cores) of all available computer nodes in the
lsf
partition.
• The maxmem column displays minimum maxmem over all available computer nodes in the lsf
partition.
• The maxtmp column (not shown) displays minimum maxtmp over all available computer nodes in
the lsf partition. Use the lshosts -l command to display this column.
10.10.3 Getting Host Load Information
The LSF lsload command displays load information for LSF execution hosts.
$ lsload
HOST_NAME status r15s r1m r15m ut pg ls it tmp swp mem
lsfhost.loc ok - - - - - 4 - - - -
10.10 Determining Available System Resources 91