HP XC System Software Administration Guide Version 3.2

• You should be familiar with the LSF installation documentation and the README file
provided in the LSF installation tar file.
• You should also be familiar with the normal procedures in adding a node to an existing LSF
cluster, such as:
— Establishing default communications (rhosts or ssh keys)
— Setting up shared directories
— Adding common users
• You should also have read Chapter 16: Managing LSF (page 189) in this document.
A.2 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 V6.2 or later.
Newer versions of Standard LSF contain the schmod_slurm module necessary to interface
properly with LSF-HPC with SLURM for HP XC systems.
A.3 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 system.
Using an independent IP and host name as the HP XC LSF alias allows you to continue to take
advantage of the LSF-HPC with SLURM 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 with SLURM 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
CommentInternet Protocol
Address
Host Names
Non-HP XC node in pre-existing LSF cluster16.32.1.24
plain
Head node of HP XC system16.32.2.128
xc-head
HP XC cluster alias (not used by LSF)16.32.2.130
xc
IP and host name to be used as the external HP XC LSF alias16.32.2.140
xclsf
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 configuration, they may even reside on the same node. However, their purposes are
distinct from each other. The existing system 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.
A.4 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:
290 Installing LSF-HPC with SLURM into an Existing Standard LSF Cluster