Need help running your job on the cluster? Need a question answered about a particular tool or cluster resources?
→ Please contact the cluster team at firstname.lastname@example.org using the email address associated with your cluster account.
However, please read this documentation first. If you find the documentation lacking something, let us know so we can update and improve it.
Whenever you have a question, please try to help us help you by providing the following information:
I can not connect to the cluster! OR
Upload of file fails → First check if you can connect to the cluster from a shell (command line) via ssh. If that succeeds, but you are denied login graphically via X2Go, chances are high that you are over your quota (maximum disk space allocation) in the HOME directory and/or your grace period has expired. Use the command “checkquota” on the command line to verify this. Delete/Move files from within the ssh shell to get below your quota limits in HOME and then try again.
When trying to connect to the cluster, I get: “Missing font family helvetica, OpenGL might have problems on this machine” → You are probably using X2Go, and you did not check the “Full Installation” checkmark. Please reinstall X2Go and make sure all fonts are installed.
I get a message about the (external) email adress I use to get status mails about my jobs → Sending lots of very similar mail to external freemail providers leads to the uni-hannover.de Domain being blocked by those sites, which in turn leads to almost nobody external reveiving mail from LUH accounts or machines any more. Therefore, we strongly encourage you to use your institute's email account (the one ending in @xxxx.uni-hannover.de), and we also ask you to NOT setup an automatic forward to a Google, GMX or similar external freemailer account.