Running a Demo on the Powerwall

 

There are several ways you can run a demo on the Powerwall through Chromuim.

Vizard and the GUI Toolkit give you a graphical user interface to run a single program through Chromium.

The Tiling Script allows you to easily configure Chromium to run one or more programs on one or more screens.

Lastly, the following method can be used to run a single program on the entire wall:

Step 1: ssh to the head node, boba142.

Set the DISPLAY environment variable to :0 and run

/usr/local/bin/vidwal

Make sure the PATH and LD_LIBRARY_PATH environment variables are set correctly.

Step 2: Change to directory <your_directory_here>/cr-X.Y/mothership/configs/ and run:

 python2.2 test_wall.conf <demo_name>

Examples of <demo_name> are “city” or “atlantis”

Step 3: Open a new terminal window and repeat Step 1.

Step 4: In the new window, change to the directory with setup_wall.sh and run

 ./setup_wall.sh

The servers will be started and the demo will run.

Advanced

If you would like to add an AutoStart feature to the conf file, to avoid having to run the setup_wall.sh script, then there are only two lines that need to be added.

Refer to the Advanced Features part of this page for explanation. The Tiling Script uses this feature.