You can launch a virtual desktop environment or another interactive app by choosing the appropriate selection from the “Interactive Apps” drop-down menu at the top of the OnDemand Dashboard page.
Then fill in the parameters needed by your job (e.g. number of cores, run time, requested RAM, queue type, partition, etc.) and click “Launch”. The job will queue and begin running when a slot is available.
If you’ve launched a virtual desktop, click “Launch Desktop” once the job begins running. A virtual desktop window will open, and from here you will be able to run interactive GUI applications on a cluster worker node.
If you’ve launched an interactive app, click “Connect to APP”, replacing “APP” with the app you are starting, once the job begins running. This will create a new tab in your browser window, and from here you will be able to interact with the application from within your web browser.
Be sure to delete desktop and any other interactive jobs once you are finished with them by selecting the “My Interactive Sessions” button on the OnDemand menu bar and then clicking the red “Delete” button next to the job.