Using OnDemand

Do you want to use Linstat but find the command line intimidating? OnDemand is a graphical user interface created to make Linux servers more user-friendly. OnDemand gives you a graphical "desktop" interface like Winstat or a regular PC or Mac, but also gives you access to all the programs and computing power available on Linstat. You can also use OnDemand to submit jobs to Slurm.

This article will show you how to use an OnDemand desktop.

Connecting to OnDemand

Starting a Linux Desktop Session

Starting a Terminal

Run Program and Application Finder

Accessing Applications

Accessing Home and Project Folders

Creating Shortcuts to Home and Project Folders

Tips for Using OnDemand

Connecting to OnDemand

To access OnDemand all you need is a browser. Just get on the SSCC network using VPN (or log into Winstat), go to ondemand.ssc.wisc.edu and log in using your SSCC credentials. It may take a few minutes to log in since it is gathering resources.

ondemand login screen

Starting a Linux Desktop Session

  1. From the Interactive Apps box or the drop down in the top bar, choose the SSCC Linux Desktop to create your session.
    ondemand landing page
  2. Click the Launch button. (It won't actually take long enough that you'll need an email.) 
  3. When your desktop is ready, a page will show information about the session you are about to start.  If you notice issues with the image quality you can change it using the slider on the session launch page. If you are off-campus you may find that increasing compression will improve performance.
    Launch session
  4. Click Launch SSCC Linux Desktop. For Edge users, when you launch your session for the first time it will ask if it should be allowed to access your clipboard and you should hit the allow button. This will let you copy and paste between your OnDemand session and your computer.

Your Linux desktop is very robust and will continue to run no matter what your computer does. If your computer loses its network connection or goes to sleep, it may not be able to reconnect to your session automatically. If not, just Launch it again from ondemand.ssc.wisc.edu.

Starting a Terminal

If you prefer to use command line, you can start a terminal by clicking on the applications menu and choosing the terminal emulator option.  You can also open a terminal by clicking on the terminal icon on the task bar. You are welcome to do everything from the command line if you prefer. Regardless, you should use the terminal in order to submit Slurm jobs.

start terminal

Run Program and Application Finder

From the start menu, you can use the run program button to access the run function and the application finder.

start menu run program

The run program button will default to the run function mode but can be changed to search for an application clicking on the arrow to the right.

run program

The application finder will show a list of all applications, but you can use the search function to find a specific program from the list.

application finder

Accessing Applications

Applications can be accessed via the bottom left icon, similar to the Widows start menu.

OnDemand Start Menu

Most of the programs you are likely to use are under Statistics, but Visual Studio Code is under Development

You can quickly access favorite applications by finding them in the applications menu then dragging them to the bottom bar of the desktop.

Accessing Home and Project Folders

Your Linux home directory and project folders are readily available just like on Winstat. You can access the folders by clicking the corresponding icon on the desktop.

To access your home folder, click on the Home folder.

desktop home

To access project folders simply click on the project folder:

desktop project

Creating Shortcuts to Home and Project Folders

To create a shortcut to a folder simply right click on the folder, click on Send To, then choose where you want the shortcut to be.

shortcuts

The Side Pane option will create a shortcut on the sidebar of the file system window.

sidepane

The Desktop option will create a shortcut for that folder on the desktop. You can also drag folders on to the bottom bar to create a shortcut for quick access.

Tips for using OnDemand

  • If you use Stata, you will need to change the color settings to not dark. To modify appearance settings go to Applications -> Settings -> Appearance and switch from Adwaita-dark to just Adwaita, or any other appearance option besides dark.


Keywordsondemand, linux, linstat, slurm   Doc ID131429
OwnerAmanda T.GroupSocial Science Computing Cooperative
Created2023-09-14 12:09:26Updated2024-03-21 10:12:43
SitesSocial Science Computing Cooperative
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