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, August 11, 2026
Thursday, January 7, 2027

Active System Messages

Temporary Login Node Instability on Ascend

We are currently experiencing temporary instability on the Ascend login nodes, which may result in slow response times or unexpected session disconnects. Our team is actively investigating the issue and will share updates as more information becomes available.

Known Issues (unresolved)

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

Title Category Description Posted Updated
Temporary Login Node Instability on Ascend Ascend

We are currently experiencing temporary instability on the Ascend login nodes, which may result in slow response times or unexpected session disconnects. Our team is actively... Read more

1 day 4 hours ago 1 day 4 hours ago
cuMemHostRegister Fails with CUDA_ERROR_INVALID_VALUE on RHEL 9.6 Ascend, Cardinal, GPU, system software

After upgrading the operating system to RHEL 9.6 during the scheduled downtime on May 12, 2026,  applications utilizing UCX (... Read more

1 day 21 hours ago 1 day 21 hours ago
STAR-CCM+ OpenMPI Job Failed due to Out-of-Memory Cardinal, Software

After the scheduled downtime on May 12, 2026, STAR-CCM+ encounters out-of-memory errors when running OpenMPI jobs. A message... Read more

2 days 3 hours ago 2 days 3 hours ago
ptrace Disabled Across OSC Systems

ptrace has been disabled globally across all OSC systems to mitigate a newly identified Linux kernel vulnerability. If this security mitigation impacts your active research... Read more

2 weeks 2 hours ago 2 weeks 2 hours ago