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6 Application Examples

This chapter describes the steps to start several representative applications that vary in their

structure and requirements:

• A workstation application that is launched remotely to use only a single node in the SVA.

See Section 6.1.

• An application that uses render and display capabilities of the SVA (for example, ParaView).

See Section 6.2.

• A workstation application that uses Chromium software and DMX to display on multiple

tiles using the SVA. See Section 6.3.

Table 6-1 summarizes the differences among three application scenarios, detailed in the following

sections.

Table 6-1 Comparison Summary of Application Scenarios

BenefitData AccessKey SVA TaskApplication Type

Scenario

Remote access to

high-end

workstations

managed as a shared,

cluster resource.

Large dataset from

computations using a

high-speed file

system.

Access cluster

workstations from

offices over standard

ethernet network

using HP RGS.

Workstation

application

Remote access using

HP RGS

Parallel application

can scale up to

visualize very large

datasets.

Large dataset loaded

in parallel by

application

components using a

high-speed parallel

file system.

Allocate appropriate

render and display

nodes and invoke and

initialize the run-time

environment and

applications.

Parallel, distributed

data, cluster

application

Data scaling and

compositing

Workstation

application can

display its output on

a multi-tile display

via installed open

source facilities.

Large dataset from

computations using a

high-speed file

system.

Allocate appropriate

nodes, invoke and

initialize the run-time

environment,

applications, and

support facilities.

Workstation

application

Resolution

scaling/multi-tile

Cluster application

can scale up to

display on walls and

immersive displays

using available

libraries, for example,

CAVELib™ or VR

Juggler.

Large dataset loaded

in parallel by

application

components via a

high-speed parallel

file system.

Allocate appropriate

nodes, initialize the

run-time

environment, and

invoke distributed

application

components.

Multi-display, cluster

application

6.1 Running an Existing Application on a Single SVA Workstation

This section describes the main steps and considerations to get an application that already runs

on a single workstation to run on a single node within an SVA. Control takes place using a

workstation remote to the cluster.

6.1.1 Assumptions and Goal

This example assumes you have a visualization application that currently runs on a single

workstation. It also assumes that you have not specifically modified it to take advantage of the

parallel features of a cluster.

6.1 Running an Existing Application on a Single SVA Workstation 47

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