Date: Wednesday, September 16, 2026
Known issue with an Unresolved Resolution state is an active problem under investigation; a temporary workaround may be available.
A known issue with a Resolved (workaround) Resolution state is an ongoing problem; a permanent workaround is available which may include using different software or hardware.
A known issue with Resolved Resolution state has been corrected.
| Title | Category |
Resolution |
Description | Posted | Updated |
|---|---|---|---|---|---|
| June 7th downtime to finish at 6:30PM | Connectivity, filesystem, Infrastructure, login, Login Problems, Maintenance, Operations, Outage |
Resolved |
Update: Downtime completed at 6:30PM, June 7th.
The June 7th downtime is now slated to be completed at 6:30PM. Previous estimate was 5PM. All systems and services will... Read more |
10 years 3 months ago | 10 years 3 months ago |
| MPI fails with UCX 1.18 | Software |
Resolved (workaround) |
After the downtime on August 19, 2025, users may encounter UCX errors such as: UCX ERROR no active messages transport to <no debug data>: self/memory -...Read more |
1 year 3 weeks ago | 11 months 2 weeks ago |
| Poor network performance on some filesystems | filesystem |
Resolved |
We are experiencing some network performance issues on a cluster of servers involved with providing GPFS and some project filesystems. GPFS appears to be functioning acceptably, but proj01, proj02... Read more |
13 years 1 month ago | 13 years 1 month ago |
| MOE license server down | Licensing |
Resolved |
The MOE license server is experiencing an unknown issue and potentially down. We are working to resolve the issue. |
2 years 12 months ago | 2 years 12 months ago |
| Rolling reboot of Owens cluster, starting from 8:30AM Oct 30, 2017 | Batch, Owens |
Resolved |
Updated on Nov 21, 2017 at 3:33PM: It has been completed. Updated on October 20, 2017 at 4:19PM: We will have a rolling reboot of Owens... Read more |
8 years 11 months ago | 8 years 10 months ago |
| OpenMPI job stopped at 'There are not enough slots available in the system to satisfy the slots' | Owens, Pitzer, Software |
Resolved |
Users would encounter a MPI job failed with |
6 years 1 month ago | 6 years 2 weeks ago |
| NCCL 2.29 Performance Regression on Ascend and Pitzer Clusters | Ascend, Pitzer, Software |
Resolved (workaround) |
We have identified a potential performance regression in point-to-point communication when using NCCL version 2.29 on the Ascend and Pitzer clusters, which results... Read more |
1 month 2 weeks ago | 1 month 2 weeks ago |
| Scheduling suspended | Batch |
Resolved |
We have temporarily suspended scheduling due to some problems with the parallel scratch file system. |
11 years 11 months ago | 11 years 11 months ago |
| Ansys OMP: System error #22: Invalid argument | Cardinal |
Resolved (workaround) |
You may encounter the following error while running Ansys on Cardinal: OMP: Error #100: Fatal system error detected. OMP: System error #22: Invalid argument forrtl: error (76): Abort...Read more |
1 year 8 months ago | 1 year 4 months ago |
| Ruby Rolling Reboot |
Resolved |
2015/02/16 RUBY Rolling Reboot starting Today
A rolling reboot is required on Ruby to update a critical... Read more |
11 years 7 months ago | 11 years 7 months ago |
