To be able to use the resource you need to apply a so-called service account with help of the registration server. First apply for an access to the registration server of the bwUniCluster here, if you haven't apply for it, yet.

Registration server of bwUniCluster

After you applied for your service account, you can login to the bwUniCluster as followed:

ssh tu_ZDV_LOGIN_ID@bwunicluster.scc.kit.edu

You can find more detailed information about using the bwUniCluster here:

http://www.bwhpc-c5.de/wiki/index.php/BwUniCluster_User_Access