Sophia will undergo maintenance on Monday, April 21, 2025, starting at 14:00 UTC (9:00 CDT 04/21) and ending at 19:00 UTC (14:00 CDT 04/21). During this time, no jobs will be run on the system and there will be no access to the login nodes. Filesystem access will be disrupted. Please contact support@alcf.anl.gov with any questions or concerns.