Logging In

Interaction with the supercomputer is typically performed with command line tools. The command line tools can be run via a command prompt, also known as a shell. SSH is used to establish a secure shell with the supercomputer.

Users should log in via the hostname ssh.fsl.byu.edu.

Programs can be tested from the interactive nodes, but anything left running for more than an hour will be killed automatically. Read the Slurm documentation when you are ready to run your jobs.


Windows does not have SSH capabilities built-in. Download PuTTY or Bitvise Tunnelier. Enter hostname: ssh.fsl.byu.edu. Click connect and enter your username and password when prompted. Once connected you can run commands.

Linux / Mac OS

Linux and Mac OS have SSH built-in. The terminal can usually be found in one of three locations: Applications -> Utilities, Applications -> Accessories, or Applications -> System Tools. This opens a command prompt on the local system; you can now connect to ssh.fsl.byu.edu. Run

$ ssh yourusername@ssh.fsl.byu.edu	

Common Command Line Tools

If you're new to using a shell, take the time to go through our Unix tutorial.