System Status

Follow @HPCNotices on X for real-time updates about the status of OSC's clusters and storage.

For information about the status of licenses for the software packages installed at OSC, visit the License Server Status Updates page.

View unresolved known issues and current system-related status messages below.

If you have encountered a problem not already listed below, please contact our client support team.

Scheduled OSC System Downtimes

OSC strives to minimize the number of system downtimes and provide clients with significant advance notice but reserves the right to change the date(s) of these downtimes and/or add additional downtimes to improve the performance of our services.

Tuesday, May 12, 2026
Tuesday, August 11, 2026
Thursday, January 7, 2027

Active System Messages

System Downtime May 12 2026

A downtime for OSC HPC systems is scheduled from 7 a.m. to 9 p.m., Tuesday, May 12, 2026. The downtime will affect the Pitzer, Cardinal and Ascend Clusters, web portals, the state-wide licenses and HPC file servers. MyOSC (the client portal) will be available during the downtime. In preparation for the downtime, the batch scheduler will not start jobs that cannot be completed before 7 a.m., May 12. Jobs that are not started on clusters will be held until after the downtime and then started once the system is returned to production status.

Reboot of Public-Facing Systems for Security Fix

Due to a critical security vulnerability we need to reboot public-facing systems to deploy a mitigation against the vulnerability. Please use support.osc.edu if you have questions or concerns.

Default MPI Module Update

The default MPI module, MVAPICH, will be updated from version 3.0 to 4.1 on May 12, 2026, during the upcoming scheduled downtime. For more information, please visit: https://www.osc.edu/resources/technical_support/hpc_changelog/2026/default_mpi_module_update

Known Issues (unresolved)

A list of all known issues, including those that have been resolved, can be found here.

Title Category Description Posted Updated
Reboot of Public-Facing Systems for Security Fix

Due to a critical security vulnerability we need to reboot public-facing systems to deploy a mitigation against the vulnerability. ssh access to compute nodes has... Read more

1 week 1 day ago 5 days 2 hours ago