Frequently Asked Questions

Who can use Arc?

The Arc research cluster is available at no charge to all University of Texas at San Antonio students, faculty and staff. Arc users may also request access for collaborators affiliated and unaffiliated with UTSA. This request must be made by the owner (not the external collaborator).

What do I need to know to use the cluster?

Users primarily interact with the cluster via the command line. Some knowledge of the Linux command line is essential. The RCSG offers on demand workshops on how to use the cluster. Resources can be found here.

Why can't I login?

1. Perhaps your password was entered incorrectly. All Arc logins are tied to your MyUTSA ID and passwords are your campus passphrase.
2. If you tried to login more than 3 times without success, the system temporarily bans your account from logging in for 15 minutes. Wait a while and try again.
3. You don't have an account on Arc.
4. There could be a problem with the login nodes. The RCSG Staff will be working on the issue until resolved. Always check the RCSG mailing list. We announce any scheduled and non-scheduled down times to the mailing list.
5. Your account on Arc has expired. Students by default are granted one (1) year access to Arc. Students will need to have their sponsor or PI notify the RCSG to have their account extended. Faculty and staff accounts do not expire.

If you need to change your passphrase, please contact the UTS Tech Cafe or go to the UTSA Passphrase Portal to reset your passphrase.

Commonly Asked Questions

Slurm commands not found, squeue, sbatch

• You need to load the "slurm" module - module load slurm

-- AdminUser - 05 Apr 2021