HP XC System Software Administration Guide Version 3.1

If you make any changes, be sure to run the scontrol reconfigure command to update SLURM with
these new settings.
14.2.4 Configuring SLURM Partitions
Nodes are grouped together in partitions. A node can belong to only one partition.
A SLURM job cannot be scheduled to run across partitions.
Only the superuser (root) and the SLURM system administrator (SlurmUser) are allowed to allocate
resources for any other user.
Your HP XC system is configured initially with all compute nodes in a single SLURM partition, called
lsf. In some situations, you might want to remove some nodes from the lsf partition and manage them
directly with SLURM, submitting jobs to those nodes with the srun --partition=partition-name
command.
LSF manages only one partition. If present, the LSF partition must have these characteristics specified:
PartitionName=lsf
RootOnly=YES
Shared=FORCE
Assigning YES to the RootOnly= characteristic means that only the superuser (root) can create allocations
for normal user jobs.
The Shared=FORCE characteristic ensures that more than one job can run on the same node. LSF-HPC
with SLURM uses this facility to support preemption and scheduling multiple serial jobs on the same node
(node sharing). The FORCE value makes all nodes in the partition available for sharing without user means
of disabling it.
Do not configure the MaxNodes, MaxTime, or MinNodes parameters in an LSF partition; these parameters
conflict with LSF scheduling decisions.
Note:
The root-only lsf partition is provided for submitting and managing jobs through an interaction of
SLURM and LSF. If you intend to use SLURM independently from LSF, consider configuring a separate
SLURM partition for that purpose.
Table 14-2 describes the SLURM partition characteristics available on HP XC systems.
Table 14-2 SLURM Partition Characteristics
DescriptionCharacteristic
List of nodes that constitute this partition.
Nodes
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.
AllowGroups
A text string, which must be either YES or NO.
The value YES indicates that the corresponding partition is the default when
users submit jobs without specifying a partition.
Default
A text string, which must be either YES or NO.
The text string YES specifies that only the superuser (root) can use this
partition.
RootOnly
Specifies the maximum count of nodes that can be allocated to any single
job.
The default is unlimited or -1.
MaxNodes
Specifies the maximum time limit (in minutes) allowed for jobs in this
partition.
The default is unlimited or -1.
MaxTime
Node Characteristics 161