Glossary

Administrative Network

Connects all nodes in the cluster. In an HP XC compute

 

cluster, this consists of two branches: the Administrative

 

Network and the Console Network. This private local

 

Ethernet network runs TCP/IP. The Administrative Network

 

is Gigabit Ethernet (GigE); the Console Network is 10/100

 

BaseT. Because the visualization nodes do not support

 

console functions, visualization nodes are not connected

 

to a console branch.

bounded configuration

An SVA configuration that contains only visualization nodes

 

and is limited in size to one to three racks. The bounded

 

configuration serves as a standalone visualization cluster.

 

It can be connected to a larger HP XC cluster via external

 

GigE connections.

Chromium

Chromium is an open source system for interactive

 

rendering on clusters of graphics workstations. Various

 

parallel rendering techniques such as sort-first and sort-last

 

may be implemented with Chromium. Furthermore,

 

Chromium allows filtering and manipulation of OpenGL

 

command streams for non-invasive rendering algorithms.

 

Chromium is a flexible framework for scalable real-time

 

rendering on clusters of workstations, derived from the

 

Stanford WireGL project code base.

compute node

Standard node in an HP XC cluster to be used in parallel

 

by applications.

Configuration Data Files

Configuration Data Files provide specific information about

 

the system configuration of an SVA. File details are mainly

 

of interest to the system administrator who manages and

 

configures the cluster. All visualization sessions that you

 

initiate to run your application depend on input from the

 

Configuration Data Files. There are three such files: Site

 

Configuration File, User Configuration File, and Job

 

Settings File.

display node

Display nodes are standard Linux workstations containing

 

graphics cards. They transfer image output to the display

 

devices and can synchronize multi-tile displays. The final

 

output of a visualization application is to display a

 

complete image that is the result of the parallel rendering

 

that takes place during an application job. To make this

 

possible, a display node must contain a graphics card

 

connected to a display device. The display can show

 

images integrated with the application user interface, or

 

full screen images. The output can be a complete display

 

or one tile of an aggregate display.

display block

The tile output from a single display node, including the

 

relative orientation of the tiles in the case of multi-tile output

 

generated by two ports on a single graphics card or two

 

cards.

Display Surface

A Display Surface is a named assemblage of one or more

 

display nodes, their associated display devices, including

 

the physical orientation of the display devices relative to

 

one another. A Display Surface is made up of the output

 

of display nodes, that is, display blocks.

Display Surface Configuration Tool

Defines the arrangement of display blocks that make up

 

a Display Surface, including the relative spatial

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HP Scalable Visualization Array (SVA) Software manual Glossary, Is limited in size to one to three racks. The bounded