Open OnDemand is a web portal that provides access to the following ARC HPC clusters: Cascades, Dragonstooth, and Huckleberry. 

It facilitates clusters’ access and job management without the need for Linux experience or any installations on the client-side. The only requirement is an up-to-date web browser. Firefox or Chrome are preferred.

OnDemand provides the following features:

  • File Management and Transfer
  • Job Management 
  • Shell Access (Cascades, Dragonstooth, and Huckleberry)
  • Interactive Apps

Usage instructions:

  • In order to use OnDemand, you will need to be using the university network or on VPN (VT Traffic over SSL VPN)
  • Once connected, go to https://ondemand.arc.vt.edu/
  • Then, you can log in using your VT credentials  (PID and password)


OnDemand provides interactive apps on each of the clusters, as shown in the image below.

Submitting a job through OnDemand:

For complete documentation, please visit Ohio Supercomputer Center, which develops Open OnDemand detailed documentation pages.