HP XC System Software Administration Guide Version 3.1

A Installing LSF-HPC with SLURM into an Existing Standard
LSF Cluster
This appendix describes how to join an HP XC system running LSF-HPC with SLURM (integrated with
the SLURM resource manager) to an existing standard LSF Cluster without destroying existing LSF-HPC
with SLURM 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 with SLURM 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 with SLURM 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 252)
• “Installing LSF-HPC with SLURM” (page 256)
• “Perform Post Installation Tasks” (page 259)
• “Configuring the LSF Alias” (page 260)
• “Starting LSF on the HP XC System” (page 261)
• “Sample Running Jobs” (page 261)
• “Troubleshooting” (page 262)
A.1 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 system. The LSF_TOP location will reside on the existing LSF cluster and it will be exported to
the HP XC system. The HP XC system 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.
A.1 Assumptions 251