To facilitate maintenance, Crux will be unavailable from Monday, July 28, 2025, at 9:00 a.m. (CDT), until Tuesday, July 29, 2025, at 5:00 p.m. (CDT).

During this time, no jobs will run and there will be no access to the login nodes.

We will send a notice when maintenance has concluded. Please contact support@alcf.anl.gov with any questions, comments, or concerns.