HP XC System Software Administration Guide Version 3.0

DescriptionEnvironment Variable
Some LSF-HPC communication can occur through privileged ports. This setting
disables privileged ports usage ensuring that no communication occurs through
privileged ports. Disabling privileged ports helps to ensure system security.
By default, LSF daemons and clients running under the root account use
privileged ports to communicate with each other. If
LSF_NON_PRIVILEGED_PORTS is undefined, and if LSF_AUTH is not defined
in lsf.conf file, LSF daemons check the privileged port of request message
to perform authentication.
If LSF_NON_PRIVILEGED_PORTS=Y is defined, LSF clients (LSF commands
and daemons) do not use privileged ports to communicate with daemons, and
LSF daemons do not check privileged ports of incoming requests to do
authentication.
This setting is undefined by default.
LSF_NON_PRIVILEGED_PORTS=Y|y
This setting disables cleanup of jobs other than LSF jobs running in a SLURM
LSF partition.
By default, only LSF jobs are allowed to run within a SLURM LSF partition. LSF
periodically cleans up any jobs submitted outside of LSF. This cleanup period
is defined through LSB_RLA_UPDATE.
For example, the following srun job is not submitted through LSF, so it is
terminated:
% srun -n 4 -p lsf sleep 100000
srun: error: n13: task[0-1]: Terminated
srun: Terminating job
If LSF_SLURM_DISABLE_CLEANUP=Y is set, this job would be allowed to run.
This setting is undefined by default.
LSF_SLURM_DISABLE_CLEANUP=y|Y
This setting specifies the LSF tmp directory for HP XC systems. The default
LSF_TMPDIR /tmp cannot be shared across nodes, so LSF_SLURM_TMPDIR
must specify a path that is accessible on all nodes of the HP XC system.
LSF_SLURM_TMPDIR affects only HP XC configuration. It is ignored on other
systems in a mixed cluster environment. The location of LSF tmp directory is
determined in the following order:
• LSF_SLURM_TMPDIR, if defined
• LSF_TMPDIR, if defined
• The default shared directory /hptc_cluster/lsf/tmp
The default path is /hptc_cluster/lsf/tmp.
LSF_SLURM_TMPDIR=path
Table 13-4. describes the environment variables in the lsb.queues file that you can use to enhance
LSF-HPC.
Example 133