HP XC System Software Administration Guide Version 3.0

A. Installing LSF-HPC for SLURM into an Existing Standard
LSF Cluster
This appendix describes how to join an HP XC system running LSF-HPC (integrated with the SLURM resource
manager) to an existing Standard LSF Cluster without destroying existing LSF-HPC configuration. After
installation, the HP XC system is treated as one host in the overall LSF cluster, that is, it becomes a cluster
within the LSF cluster. Figure A-1. depicts an HP XC node running Standard LSF connected by one wire to
the nodes in the site LSF Cluster.
Figure A-1. LSF-HPC Into an Existing Standard LSF Cluster LSF-HPC Into an Existing Standard LSF Cluster
An existing LSF cluster typically has a single common LSF_TOP location, also known as the "LSF root" or
LSF "tree". Multiple versions of LSF are installed and centrally maintained at the LSF_TOP location. Note
that LSF_TOP is not an actual environment variable created by LSF, it is just used to denote the LSF "root"
in the documentation.
The procedures in this appendix installs LSF-HPC into the LSF_TOP location on the existing LSF cluster.
This installation retains the functionality currently used by the existing Standard LSF cluster, while providing
the SLURM support needed by the HP XC cluster.
This appendix consists of the following sections that correspond to the major tasks for installing the cluster:
• HP XC Preparation (page 172)
• Installing LSF-HPC (page 175)
• Perform Post Installation Tasks (page 178)
• Configuring the LSF Alias (page 179)
• Starting LSF on the HP XC System (page 179)
• Sample Running Jobs (page 180)
• Troubleshooting (page 181)
Assumptions
The following points are assumed:
• There will be a single LSF_TOP location shared by both the existing Standard LSF cluster and the HP
XC cluster. The LSF_TOP location will reside on the existing LSF cluster and it will be exported to the
HP XC cluster. The HP XC cluster will NFS mount the LSF_TOP location from the existing LSF cluster.
Thus, changes made to the configuration files in LSF_TOP/conf are visible to both clusters.
• You should have an understanding of standard LSF installation and configuration procedures to perform
this procedure.
• 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 13.: Managing LSF (page 117) in this document.
Assumptions 171