The Gantenbein Training System

All assignments should be developed and tested on the Chalmers-provided training system. Submissions must compile and pass the required checks on this system. The training system is a server named Gantenbein, hosted at the Department of Mathematical Sciences.

If you registered in Canvas before the course started, you will receive your account details by email during the first week. If you registered later, contact me.

Log in

Access to Gantenbein is restricted to the Chalmers local network since 2026. When off campus, you must first connect via VPN.

Log in using ssh. For example, if your username is hpcusr223:

ssh hpcusr223@gantenbein.math.chalmers.se

The fingerprint shown during login differs from the one in the video. Verify that the ED25519 fingerprint is:

SHA256:yQGaJ5gx0TQSj/Srx8go8bD5wLhO6RoUja+km/wUxcE

After logging in, you have a standard terminal to work in. Like all high-performance computing environments, Gantenbein does not provide a graphical user interface. Use the terminal as explained on the HPC website.

Transferring files to and from Gantenbein

To submit your solutions, you must transfer files to Gantenbein. If you prefer to edit files elsewhere (a common choice among students, though not officially recommended) you will also need to transfer files back and forth.

Use scp to transfer files. Alternatively, rsync may be better suited for some workflows. For example, to copy files from Gantenbein to your local working directory:

scp hpcusrXXX@gantenbein.math.chalmers.se:assignment2/submission.tar.gz .

Note that the command syntax may vary on operating systems other than Linux.

Your operating system

The Linux lab computers at Chalmers come with ssh and scp available. Most students, however, prefer to connect from their own machines. Your system does not need to run Linux: any operating system that supports these commands will work.