HP XC System Software Administration Guide Version 3.1

B Installing Standard LSF on a Subset of Nodes
This document provides instructions for installing standard LSF on a subset of nodes in the HP XC system;
another subset of nodes runs LSF-HPC with SLURM.
This situation is useful for an HP XC system that is comprised of two different types of nodes, for example,
a set of large SMP nodes (“fat” nodes) running LSF-HPC with SLURM and a set of “thin” nodes running
Standard LSF, as Figure B-1 shows.
Figure B-1 Installing Standard LSF on Node Subset
This approach prevents jobs from running across both thin and fat nodes, but does offer full Standard LSF
support for these large SMP systems, particularly job scheduling based on the size and load of memory,
cpu, or both.
The HP XC cluster_config program allows you to decide which nodes have a compute role and
which nodes have a resource management role. The compute nodes become SLURM compute nodes.
The SLURM master and backup daemons reside on the resource management nodes; one of them is selected
to run the LSF-HPC with SLURM daemons. The existing technology in HP XC allows you to "configure
out" a subset of HP XC nodes that will not run LSF-HPC with SLURM with SLURM.
Before running the cluster_config command to adjust the role assignments, you need to install Standard
LSF and perform some additional configuration to support Standard LSF within the HP XC system.
Installing Standard LSF on HP XC is straightforward. It just involves a few extra adjustments to work with
the HP XC file system management. The following procedures cover all the necessary adjustments:
B.1 Requirements
• The Standard LSF version must be the latest version, 6.2 or later (with schmod_slurm module)
• You must be familiar with Standard LSF installation and administration procedures
• You must be familiar with the procedures for installing and configuring LSF-HPC with SLURM for
SLURM on the HP XC system
• The HP XC head node cannot be configured to run Standard LSF. There is an unresolved issue in the
LSF failover and setup mechanism on the HP XC system that will be corrected in a future release.
B.2 Assumptions
• LSF-HPC with SLURM for SLURM was installed by the cluster_config process using default
values
• You have a proper Platform LSF license
• There is no need to communicate with an external LSF cluster (this can be done, but involves additional
procedures to prepare the external network connections).
B.1 Requirements 265