HP Scalable Visualization Array Software - Manual (Page 42)

Depending on the number of nodes in a cluster, any user can rely on the job launch scripts to
dynamically allocate nodes in efficient ways. For example, assume a cluster has six display nodes,
two render nodes, and two site-specific Display Surfaces:
• BigDisplay : This is for a 3x2 array.
• SmallDisplay : This is for a 2x2 array.
By using a job launch script based on sva_job_template.sh, you can specify the
SmallDisplay
Display Surface and four render nodes via the -r command option. The job
then uses four display nodes as appropriate for the Display Surface, the two nodes defined as
render nodes, and two unused display nodes as the remaining two render nodes.
5.6 Running a Stereo Application
Once SVA and the Display Surfaces are properly set up for stereo by the system administrator,
end users should be able to launch a stereo application in much the same way as a mono
application. If you want to understand the underlying details of how SVA is configured for
stereo, see the SVA System Administration Guide.
There are several key steps needed to view stereo images:
• Use the SVA launch scripts.
• Designate in the launch script a Display Surface previously configured by your system
administrator as stereo-capable.
• Designate in the launch script the --stereo option, which makes use of the stereo capabilities
of the Display Surface. If you use the launch script without the --stereo option, only mono
capabilities of the Display Surface are used.
For example, the following command uses a launch script with a Display Surface previously
defined as stereo-capable by the system administrator. The system administrator has already
specified the mode characteristics of the stereo display using the Display Surface Configuration
tool.
% sva_chromium_dmx.sh -d STEREO_DISPLAY_1 --stereo "/usr/X11R6/lib/xscreensaver/atlantis"
The following command uses a launch script with the same Display Surface as a mono device:
% sva_chromium_dmx.sh -d STEREO_DISPLAY_1 "/usr/X11R6/lib/xscreensaver/atlantis"
42 Setting Up and Running a Visualization Session