3 run a test application, 1 set up control for an application – HP Scalable Visualization Array Software User Manual
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See the HP SVA System Administration Guide for detailed information on how to define
Display Surfaces, including a recommended incremental series of steps for configuring SVA
for your displays.
•
Verify and possibly modify supported resolutions, display modelines, and refresh rates.
This step is likely to be required for stereo displays and more exotic mono displays. Typical
desktop display devices (monitors and flat panels) are supported by default by SVA.
This topic is covered in detail in the HP SVA System Administration Guide. Note the following:
— You should not edit the standard X Configuration File (xorg.conf) on individual
visualization nodes. SVA creates its own set of SVA X Configuration Files during
installation. Only these are used by SVA when you launch a job.
— The SVA X Configuration Files support most desktop-style displays (flat panels and
monitors) without any changes. More exotic display devices (for example, projector
systems, extremely high-resolution devices, or stereo displays) require changes to the
settings in the SVA X Configuration Files.
— In the case of such exotic displays, you will need information from the display vendor,
namely, resolution, refresh rate, and modeline settings. Consult your display vendor
documentation.
— Use the display information to edit the settings in the SVA Monitor Properties Files.
After any edits, you need to regenerate the SVA X Configuration Files on all the nodes.
This process of editing and regenerating is detailed in the HP SVA System Administration
Guide.
4.3 Run a Test Application
Once you reach the point that the hardware is installed properly and the Display Surfaces are
defined, you can run a sample application to get a feel for how the cluster works. There are
several tasks that help familiarize you with the cluster:
•
Set up how you want to control an application.
•
Use an SVA launch script with a sample application. We recommend the
sva_chromium_dmx.sh
script with the city application in interactive and then batch
mode.
•
Run an application remotely using HP Remote Graphics Software (HP RGS). (HP RGS is an
optional purchase that may not be available on your cluster.) VirtualGL is an alternative
package to HP RGS for remote viewing.
See
for more detail on launch scripts. See
for more information on how to
use HP RGS and VirtualGL and their accompanying scripts.
4.3.1 Set Up Control for an Application
You have several ways to control an application (that is, provide mouse and keyboard input):
•
Use a keyboard, mouse, and monitor plugged directly into the node running the application.
Note that the node that runs the application is determined by the SVA_EXECUTION_HOST
as described in
•
Use a console other than one connected directly to the node running the application. For
example, this could be the console connected to the head node. Use a KVM to switch to the
node running the application.
•
Use HP Remote Graphics Software (HP RGS) or VirtualGL to control the application from
a node remote from the cluster.
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