This is a reminder that Polaris's HPCM Management Software will be upgraded May 13-14. The upgrade will begin on Tuesday, May 13, at 14:00 UTC (9:00 a.m. CDT 05/13) and will end at 22:30 UTC on Wednesday, May 14 (5:30 p.m. CDT 05/14). During this time, no jobs will run on the system, and there will be no access to the login nodes. Filesystem access will be disrupted. No recompilation of user codes will be required after the maintenance. Please contact support@alcf.anl.gov with any questions or concerns.