Usage of institutional clusters

What to do after time spent on optimizing your code the latter is still too slow? Or do you need huge amount of memory to run your program?

Desktop machines are not always powerful enough to solve the large problems researchers try to tackle. Fortunately the University provides the clusters Baobab/Yggdrasil when a researcher needs more computing resources. However you don't use this machine like you use your laptop.

This workshop will introduce you to Babobab. What is this machine, what it provides and how to use it. During the workshop you'll learn to write scripts to submit your own tasks with SLURM. After that, the participants will be qualified to connect to the machine and execute their own program on Baobab/Yggdrasil.


You should be familiar with the command line, like any Linux terminal, Terminal in Mac OS, or the Windows command line. You also need to have a Baobab/Yggdrasil account. If don't have an account it can be created on request through the following form.

If you're not familiar with the command line, you should consider attending our command line workshop.

Material needed

Participants should come with their personal computer and should be connected to the University of Geneva's WiFi. Rooms may be equipped with Desktop computers with virtual desktop infrastructure but this depends on rooms availability at the time of the workshop.

An SSH client should be installed on your computer:

  • Windows users can use the powershell,  and may need to install OpenSSH. If this is not available to your Windows version you can install PuTTY.
  • Linux users should have it already installed on their machine by default. Please check that the ssh command is available on through your terminal. If not, Linux users should refer to their distribution's package manager (e.g. apt install ssh for Ubuntu based distribution).
  • Mac OS users have it already installed on their machine.


Registration to workshop is mandatory. Date, location and availability depend on the session. The registration forms can be found on the scicos events Indico website. Please note that the number of participants is limited to ensure proper students supervision.