HP Scalable Visualization Array Software - Manual (Page 44)

arrangement of the display blocks. Invoked using the
svadisplaysurface
command. Requires root privileges.
DMX Distributed Multi-Head X is a proxy X Server that provides
multi-head support for multiple displays attached to different
machines (each of which is running a typical X Server).
interactive session A visualization session typically launched using a VSS
script provided by HP. Such a script allocates the cluster
resources, and starts the X Servers. It also starts a desktop
environment (for example, KDE or Gnome) from which you
can launch your applications repeatedly while retaining
the same job resources. To launch your application, open
a terminal window and then run your application as usual.
Job Settings File A Configuration Data File that determines the way in which
a visualization job runs. The visualization job data is
defined at job allocation time from options specified to the
job launch scripts, from data access calls embedded in
the script, and the other configuration data files. The Job
Settings File is named
/hptc_cluster/sva/job/<id>.conf
. This file has
a life span equal to that of the job.
LSF Platform Load Sharing Facility for High Performance
Computing. Layered on top of SLURM to provide high-level
scheduling services for the HP XC system software user.
LSF can be used in parallel with SVA job launching
techniques that rely on SLURM.
Node Configuration Tool Defines the display block output from a single display
node, including the relative spatial arrangement of the
tiles. Invoked using the svaconfigurenode command.
Requires root privileges.
ParaView An open-source, multi-platform, extensible application
designed for visualizing large datasets. This scalable
application runs on single-processor workstations as well
as on large parallel supercomputers.
Remote Graphics Software (HP) HP RGS is an HP product that facilitates access to cluster
workstations from offices over a standard ethernet network.
Optional purchase. Script support is provided in the SVA
Kit for this product.
render node A type of visualization node used to render images. A
visualization job uses multiple nodes to render image data
in parallel. A render node typically communicates over
the System Interconnect with other render and display
nodes to composite and display images. Requires a NIC
if used with HP RGS.
Site Configuration File A Data Configuration File. This file contains the default
system settings and Display Surface definitions. It is
generated initially by HP (and a site administrator if
necessary) using the svaconfigure Utility when the
cluster software is installed. Only root users can change
this file. This file is named /opt/sva/etc/sva.conf.
SLURM Simple Linux Utility for Resource Management. A resource
manager for Linux clusters. Used to set up visualization
sessions and launch visualization jobs. Preferred allocation
utility of HP XC.
svaconfigure Utility Generates the Site Configuration Data file.
System Interconnect The System Interconnect (SI) supports data transfer among
HP XC cluster nodes, including visualization nodes.
High-speed, low-latency networks such as InfiniBand and
44 Glossary