Using R Studio

First, you will need to start the interactive job on the compute node. Please note that you will need to change traine to your username. For example,

[(it_css:traine)@login00.darwin ~]$ SLURM_EXPORT_ENV=NONE salloc --mem=2G --time=1:00:00 --partition=idle #on Caviness, you may need to use partition such as standard
salloc: Pending job allocation 5406889
salloc: job 5406889 queued and waiting for resources
salloc: job 5406889 has been allocated resources
salloc: Granted job allocation 5406889
salloc: Waiting for resource configuration
salloc: Nodes r1n17 are ready for job 

Then, use the VALET to load the RStudio package,

[(it_css:traine)@r1n17 ~]$ vpkg_require r-studio-server/4.2.1
Adding dependency `squashfs-tools/4.5.1` to your environment
Adding dependency `singularity/3.11.1` to your environment
Adding package `r-studio-server/4.2.1` to your environment

After loading the package, start the rserver in the singularity container.

[(it_css:traine)@r1n17 ~]$ Sexec rserver --server-user=$USER
TTY detected. Printing informational message about logging configuration. Logging configuration loaded from '/etc/rstudio/logging.conf'. Logging to '/var/log/rstudio/rstudio-server/rserver.log'.
TTY detected. Printing informational message about logging configuration. Logging configuration loaded from '/etc/rstudio/logging.conf'. Logging to '/var/log/rstudio/rstudio-server/rsession-traine.log'.

If you are using Linux/Mac, open the terminal on your laptop, then

ssh -L 8787:r1n17:8787 traine@darwin.hpc.udel.edu

You may need to change r1n17 to be the node name for your interactive job running. If you are using a Windows machine, open PuTTY and enter traine@darwin.hpc.udel.edu as the hostname. In addition to your standard connection PuTTY settings, you will need to set up the tunnel setting. The tunnel setting is found under the Category Connection → SSH → Tunnels. Add the Source port as 8787 and Destination as 8787:r1n17:8787(you will need to change the node name based on your interactive job), then click on Add. The Tunnel settings are now available to your session, so click Open to connect. You may need to enter the password for the DARWIN account in the prompted window. This SSH tunnel connection will have to remain open while you are using RStudio.

Keep the SSH tunnel connection open and open the web browser, go to

localhost:8787

Then you will see the session for RStudio has started. After the job is completed, you will need to close the SSH tunnel and exit the RStudio session.