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OnDemand interactive applications can be launched from OnDemand with graphics, similar to a remote desktop that only launches the application.

After logging into OnDemand on your favorite ARCC HPC resource, you can request a Jupyter Session by clicking on the app from the main Dashboard:

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After clicking the jupyter app, you are taken to a web form to tailor and specify the Jupyter environment you’d like to run in your session

Jupyter Interface: Select from Jupyter Notebook or Jupyter Lab

Account: The associated investment account or project you’re using to run the session

Number of hours: How long you plan to use the notebook

Number of Nodes: how many nodes you want allocated to perform work while using this notebook.

Number of CPUs: how many cores you will need access to perform your work while using this notebook.

Amount of Memory: Memory in GB required to run throughout the course of this Jupyer session

GPU Type: Which GPU hardware you’d like to perform your work in the Jupyter Notebook or Lab on

A screenshot of a computer

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When you click launch, you’re redirected to a page showing a list of your most recent interactive sessions.
The Slurm scheduler assigns a compute node with a specified number of cores, memory, hardware and timeframes as requested from the input you provided in your webform.
When your session is ready for use, the heading will turn green.
- Completed sessions are denoted with gray headings
- Pending sessions are denoted with blue headings

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