HP XC System Software Release Notes for Version 2.1

The compute node configuration in the slurm.conf file is updated
automatically.
• The genelanhosts script has been replaced by the spconfig script, which
must be run after the startsys command regardless of interconnect type. This
change is documented in the
HP XC System Software Installation Guide.
1.5 The startsys Command
The --max_at_once option has been added to the startsys command. This
option allows you to specify the number of nodes to image simultaneously.
Specifying this option on the command line improves head node responsiveness on
systems with large node counts and relatively small memory size.
1.6 Image Distribution
The ability to dynamically encounter disks on client nodes during an imaging
operation, identify their type (for example, hda, sda,orcciss), and create
partitions and file systems on them has been added. This is in contrast to the
previous static method in which disk type and disk size for each client node were
assumed to be known before the imaging operation occurred.
The dynamic disk discovery feature is now the default behavior during imaging
operations. However you can revert to the standard, static imaging behavior if
you want to assert control over the partitioning and file system creation of disks
within your system.
Refer to the HP XC System Software Installation Guide for more information.
1.7 Resource Management
The following enhancements were made to SLURM:
• A SLURM job accounting plugin is installed by default on fresh installations
and gathers run-time accounting data by job.
• The sacct utility was added to report accounting data. Refer to sacct
(1)
for more information.
• The persistent sequencing of SLURM job IDs was added.
• The ability to enable backfill scheduling in RootOnly partitions was added.
• The maximum number of characters in the SLURM job name was increased
from 16 to 256.
For the Load Sharing Facility (LSF), the JOB_STARTER script was added to default
queues to launch user jobs on the first allocated node.
1.8 Interconnects
The following updates were made to the interconnect components:
• Infiniband
®
update to IB Version 3.0.16.5_2 . This version adds support for
Itanium-based systems.
• Myricom
®
update to GM Version 2.1.7, which also adds support for the Myrinet
®
256 port switch.
• QsNet
II
®
RPM updates:
- qsnet2libs-1.8.13-0.1hptc
- qsnetlibs-1.4.30-1.1hptc
- hptc-qsnet2-diag-1-4.1sp
1-2 New Features