OnDemand

Open OnDemand (OOD)

Open OnDemand ("OOD") is a web-based service provided by GACRC which provides users an alternative and/or complimentary method to access the HPC Clusters. It helps computational researchers and students efficiently utilize remote computing resources by making them easy to access from any device, via a convenient web interface. Through Open OnDemand, graphical applications can be utilized on the cluster far more easily and smoothly than using X11 Forwarding. It also helps computer center staff support a wide range of clients by simplifying the user interface and experience.

OOD Features:

• Job submission and monitoring
• File transfer and management
• File editing
• Shell access
• Graphical Desktop on the cluster
• Interactive Applications

Open OnDemand Integration with GACRC Clusters

Cluster	Phase	URL
Sapelo2	Beta Testing	https://ondemand.gacrc.uga.edu
Teach	Future	N/A

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How to access Open OnDemand

In order to access the GACRC OOD login page, You must be connected to the UGA Network, either directly or by VPN. Logging in requires a GACRC Cluster Account.

1. Open a web browser to the cluster's Open OnDemand URL. For example: https://ondemand.gacrc.uga.edu
2. Login with your UGA MyID credentials

Browser Requirements/Notes

To have the best experience using OnDemand, use the latest versions of Google Chrome, Mozilla Firefox or Microsoft Edge. Use any modern browser that supports ECMAScript 2016. Google Chrome has the widest range of support since the Shell App uses hterm.js which is supported officially by Google. Chrome currently is the only web browser that natively supports the copy and paste functionality in noVNC. Other browsers can do copy and pasting manually through the noVNC tool drawer. Safari users may have issues when using the Shell App or noVNC. There is no IE 11 support.

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Using Open OnDemand

Upon logging into Open OnDemand, all of its tools can be accessed via the links in the top menu bar.

Files

Clicking "Files" in the top menu bar will open a drop menu that displays yours and your lab's directories on the cluster. Clicking any of those displayed directories will take you to a new page that allows you to manage the directories contents, as well as navigate to other directories on the cluster to which you have access.

Jobs

Clicking "Jobs" will open a drop down menu allowing you to navigate to "Active Jobs" or "Job Composer". In the Active Jobs interface, you're able to view information about your currently running jobs.

Additional Notes

Per User Experience

OnDemand will spawn a Per User Nginx session upon successful login. This means that each connection on the OOD server is running as that particular user. Each session is completely separated from other users sessions.