HP XC System Software Administration Guide Version 2.1

This might be reset as follows:
NodeName=DEFAULT Procs=2 TmpDisk=1024 RealMemory=4000
NodeName=n[1-15] RealMemory=1000 Weight=8
NodeName=n[16-127,129] RealMemory=2000 Weight=16
NodeName=n[128,130-512] Feature="noswap" Procs=4 Weight=50
This reset accomplishes the following after S LURM reconfiguration:
• The assignments NodeName=DEFAULT Procs=2 TmpDisk=1024 specify that, by
default, all nodes have two processors and that 1 GB (1,024 MB) of temporary disk space is
available on each node, unless otherwise specified.
• Nodes 1-15 are allocated before any of the others because their Weight is the lowest.
Nodes 128 and 130-512 are allocated last, unless a user requests large mem ory, the locally
defined noswap feature, or nodes with four processors.
11.2.4 Configuring SLURM Partitions
Nodes are grouped together in partitions. A node can belong to o nly one p a rtitio n.
Your HP XC system is configured initially with all com pute nodes in a single SLURM partiti on
called lsf. In so me situations, you mig ht want to remove some nodes from the lsf partition
and m anage them d irectly with SLURM, submitting jobs to those nodes with the srun
--partition=partition-name command.
LSF manages only one partition. If present, the LSF partition m ust have these characteristics
specified:
PartitionName=lsf
RootOnly=YES
Shared=FORCE
_________________________ Note _________________________
The lsf partition is provided for subm itting and managing jobs through an
interaction of SLURM and LS F. If you intend to use SLURM i ndependently from
LSF, consider co nfigurin g a separate SLURM partition for that purpose.
Table 11-2 describes the SLURM partition characteristics available on HP XC systems.
Table 11-2: SLURM Partition Characteristics
Characteristic
Description
Nodes
List of nodes that comprise this partition.
AllowGroups
A comma-separated list of group IDs that are allowed to
use the partition.
The default is ALL, which allows all users to access the
partition.
Default
A text string, usually YES or NO.
The value YES indicates that the corresponding partition
is the default when users submit jobs without specifying a
partition.
RootOnly
Specifies that only the superuser (root) can use this
partition.
MaxNodes
Specifies the maximum count of nodes that may be
allocated to any single job.
The default is unlimited or -1.
SLURM Administration 11-5