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 |
|---|---|---|---|---|---|
| Ruby is offline | Operations |
Resolved |
The Ruby Transitional Cluster (only open to select research groups) is currently offline due to network problems. We expect it will return to service some time after the downtime. |
13 years 1 week ago | 12 years 8 months ago |
| Oakley and Owens queue issue | Batch |
Resolved |
We are experiencing a problem with the queuing system on oakley and owens that is delaying or preventing new jobs from running. Our systems staff is investigating.
|
8 years 9 months ago | 8 years 9 months ago |
| Jobs reports 'excessive memory usage' message | Owens, Pitzer |
Resolved |
... Read more |
6 years 7 months ago | 4 years 5 months ago |
| HCOLL-related failures in OpenMPI applications | Cardinal, Software |
Resolved (workaround) |
Several applications using OpenMPI, including HDF5, Boost, Rmpi, ORCA, and CP2K, may fail with errors such as mca_coll_hcoll_module_enable() coll_hcol: mca_coll_hcoll_save_coll_handlers...Read more |
1 year 11 months ago | 1 year 5 months ago |
| Oakley login node problems |
Resolved |
One of the Oakley login nodes (oakley01) has experienced some hardware failures and is temporarily out of service while repairs are ongoing. Please limit your interactive use of the... Read more |
11 years 9 months ago | 11 years 9 months ago | |
| Data on /fs/scratch is not accessible | filesystem |
Resolved |
Updated on 10:30 AM July 3rd, 2019: Data on /fs/scratch is accessible now. We are working with the vendor to find the root cause and apologize for any inconvenience. ... Read more |
7 years 3 months ago | 7 years 3 months ago |
| ondemand gpu request error Nov 2021 | Batch, OnDemand, Pitzer |
Resolved |
When requesting an interactive session in ondemand and requesting gpu resources, users may see an error similar similar to "sbatch: error: Invalid generic resource (gres) specification" ... Read more |
4 years 10 months ago | 4 years 10 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 1 month ago | 1 year 23 hours 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 |
2 months 6 days ago | 2 months 6 days ago |
| Critical change about using $PFSDIR directory at OSC | Batch |
Resolved |
Starting from Thursday, Feb 2nd, the |
9 years 8 months ago | 9 years 7 months ago |
