How To: Access and Use Slurm/Open OnDemand

To log in, browse to the website https://slurm.pcl.dsu.edu/

If you have not already you will be prompted to sign in using DSU Single Sign-On use your DSU username and password

Special Note: If this is your first time connecting to the cluster you will receive a “Home directory not found”  error.

To resolve this you will want to click on the first link "Open Shell to create a home directory"

• This will open a new tab you will be prompted to accept an ssh fingerprint enter "yes"
• Next you will be prompted to login you will enter your DSU password and hit enter.

You can now close this browser tab returning to the previous. You will now want to select "Restart Web Server" after which you should be successfully logged into Open OnDemand

If you would like you use Jupyter Notebook you will want to select Jupyter Notebook from the Interactive Apps menu on the top bar

You will now be asked to select a few options for your Jupyter session

• Number of Hours (how long do you want your session to run for)
  • Please be conscious of other users when selecting this number as you will be consuming GPU resources for the entered time.
  • Data you create during your session will be persistent to future sessions. 
• Select the type of GPU you would like assigned to your session.
  • If you just need a GPU and don't care about the model you may select any.
  • If you don't need a GPU and just want CPU you can select none.

Once you have made those selections hit Launch.

The Jupyter session may take a few seconds to start up. Once you see the green bar with the status "Running" you will see a Connect to Jupyer button clicking that will open a new browser tab with your Jupyter notebook

Select new and depending on the tool set you require choose the appropriate Notebook type (this can be changed later if needed) Additionally if there is a tool set you would like to see available please let us know so we can explore adding it. 

To gain internet access you will need to authenticate to the captive portal. This can be done by opening a web browser inside of your VM and navigating to http://captive.pcl.dsu.edu 

Once the page has loaded you will log in with the same username and password you use to log in to the PCL. 

Special Notes:

• Not all labs will have internet access. 
• If your lab has multiple VMs in it make sure all VMs are powered on as it is likely that one of the other VMs is acting as a router for the lab. 
• If the page is not loading correctly you may have to refresh the page a few times.