Understanding O2 Slurm Accounts/Associations and Unix Accounts/Groups

Owned by Raffaele Potami
Last updated: Jun 28, 2022 by Kathleen ChappellVersion comment
3 min read



The purpose of this page is to illustrate the different components controlling authentication and job submission in the O2 cluster.

There are four main components: Unix account, Unix groups, Slurm accounts and Slurm associations.

  • Note that the term "HMS Account" is equivalent to what was formerly called "eCommons ID"

Unix account/user

used for O2 login access (your HMS Account)

Any user must have a unix account in order to access the O2 cluster. The unix account is the "identity" of the user, and it is involved in the authentication process when connecting to the cluster. Some key informations are also associated with the unix account such as the default linux shell to be used or the $HOME path. You can use the command  getent pa