HP SVA V2.1 Visualization System Software Reference Guide

host node defined for the Display Surface runs your application. The SVA_EXECUTION_HOST

value for the Display Surface is specified in the Configuration Data Files. You can determine

this value by examining the Site Configuration File /hptc_cluster/sva/etc/sva.conf.

• You can use the -d option to specify a render or display node by name, rather than a Display

Surface. This node is then allocated and also runs your application.

The launched application is the result of a site-specific application command.

The script also terminates X Servers and RGS processes and cleans up the session when the

program is done.

Example

The following command runs the atlantis screen saver application using the SVA_DS_1_1

Display Surface using RGS. The SVA_DS_1_1 Display Surface has a single display node and a

single display tile. The display node has a NIC that connects to the external network for use by

RGS. The application command string is unique and site-specific.

% sva_remote.sh -d SVA_DS_1_1 "/usr/X11R6/lib/xscreensaver/atlantis -count 20"

The script displays the external name of the display node on which the application runs. After

you start the RGS Receiver, enter the external name into the RGS Receiver dialog box. See the

SVA Users Guide for a more detailed example.

The following command begins an interactive session. The remote session begins on the first

available visualization node that supports RGS functions.

% sva_remote.sh -I

The previous interactive command allocates resources for an interactive mode of operation. You

can launch regular X applications as normal. From a terminal window in the desktop environment,

enter only the application pathname and any application-specific parameters:

% /usr/X11R6/lib/xscreensaver/atlantis -count 20

The following command begins an interactive session. The remote session begins on the first

available render node that supports RGS functions.

% sva_remote.sh -I -R

The following command begins an interactive session. The remote session begins on node n22.

% sva_remote.sh -d n22 -I

The following commands begin an interactive session and then start ParaView, whose display

is routed to the local desktop.

% sva_remote.sh -I

At this point, you connect to an automatically assigned RGS node on the cluster. After you log

in to the desktop of the cluster machine, use a terminal window to enter the following command:

% sva_paraview.sh --local --render 6

This causes the ParaView output to appear on the current X Desktop, in this case, the

RGS-connected node on the cluster. In turn, this output appears on your local desktop.

Refer to the SVA Users Guide for a more examples that use RGS.