HP XC System Software Administration Guide Version 3.0

Requirement
LSF-HPC for HP XC can only be added to an existing standard LSF cluster running the most up-to-date version
of LSF V6.0 or later.
Newer versions of Standard LSF contain the schmod_slurm module necessary to interface properly with
LSF-HPC for HP XC systems.
Sample Case
This section describes the sample case used throughout this appendix.
There is an existing Standard LSF cluster installed on a single node with the host name plain. It will be
added to the HP XC LSF node with the host name xclsf. Note that xclsf host name will be the LSF alias
associated with the HP XC cluster.
Using an independent IP and host name as the HP XC LSF alias allows you to continue to take advantage
of the LSF-HPC failover capability on the HP XC system, which will set up another HP XC node to host this
alias if the currently selected HP XC LSF node fails. For more details on setting up HP XC LSF-HPC failover
on the HP XC system, see controllsf(8).
The head node of the HP XC system is will be xc-head.
The node plain will also be NFS-serving the LSF "tree" to the HP XC system.
Table A-1. summarizes the IP Addresses and Host Names used in this example.
Table A-1. Host Names and IP Address used in the Sample Case Host Names and IP Address used in the
Sample Case
CommentInternet Protocol
Address
Host Names
Non-HP XC node in pre-existing LSF cluster16.32.1.24plain
Head node of HP XC cluster16.32.2.128xc-head
HP XC cluster alias (not used by LSF)16.32.2.130xc
IP and host name to be used as the external HP XC LSF alias16.32.2.140xclsf
The HP XC cluster alias is mentioned here to prevent confusion between the HP XC cluster alias and the HP
XC LSF alias. There is the potential for two separate aliases on HP XC and, depending on the cluster
configuration, they may even reside on the same node. However, their purposes are distinct from each other.
The existing cluster will have been installed with LSF_TOP set to /shared/lsf. It will have lsfadmin
configured as the Primary LSF Administrator.
The name of the existing LSF cluster is corplsf.
HP XC Preparation
There are a series of steps to perform on the HP XC system to prepare it for inclusion into an existing Standard
LSF cluster.
All steps are carried out on the HP XC head node. Most steps involve propagating changes to the other
nodes in the HP XC system.
Before proceeding, read through all these steps first to ensure that you understand what is to be done:
1. Log in as superuser (root) on the head node of the HP XC system.
2. Make sure any current LSF application on the HP XC system is shut down and won't interfere.
If LSF-HPC is currently installed and running on the HP XC system, shut it down with the controllsf
command:
# controllsf stop
3. Consider removing this installation to avoid confusion:
# /opt/hptc/etc/gconfig.d/C55lsf gunconfigure
removing /opt/hptc/lsf/top/conf...
removing /opt/hptc/lsf/top/6.0...
removing /opt/hptc/lsf/top/work...
removing /opt/hptc/lsf/top/log...
removing /hptc_cluster/lsf/conf...
172 Installing LSF-HPC for SLURM into an Existing Standard LSF Cluster