C4 OnDemand #

Open OnDemand is a web-based framework with easy to use GUI interfaces for common cluster tasks. It is a well supported open-source project developed at the Ohio Supercomputer Center. We have integrated OnDemand with C4 to provide an easy to use interface for interactive jobs. In addition to a file browser capable of moving files on and off the cluster, and a web-based C4 terminal, we support interactive applications including:

• Linux Desktop - a MATE GUI desktop for Linux in your web browser
• RStudio Server - run R via the RStudio interface
• Jupyter Notebooks - in beta test mode (as of May 2022)

These are all available via your local web browser with full access to the C4 compute resources.

How to use OnDemand #

1. As with the rest of C4, you must be on the campus network, or connected via the UCSF VPN

2. From the web browser on your local workstation, connect to one of our OnDemand servers:
   1. https://c4-ondemand1.ucsf.edu
   2. https://c4-ondemand2.ucsf.edu
3. Enter your C4 username and password, and click ‘Login’

After completing these steps, you have full access to the C4 OnDemand website and its tools and applications.