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 |
|---|---|---|---|---|---|
| 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 |
3 days 19 hours ago | 3 days 19 hours ago |
| Rolling Reboot of all three HPC clusters beginning July 7 |
Resolved |
A rolling reboot is scheduled to remediate a |
1 month 6 days ago | 1 week 6 days ago | |
| ptrace Disabled so Debuggers and Tracers Do Not Work |
Resolved |
|
2 months 3 weeks ago | 1 week 6 days ago | |
| Linaro MAP fails to launch in linaro-forge/23.0.4 | Cardinal, Software |
Resolved (workaround) |
Linaro MAP can fail to work in linaro-forge/23.0.4 |
2 weeks 1 day ago | 2 weeks 1 day ago |
| cuMemHostRegister Fails with CUDA_ERROR_INVALID_VALUE on RHEL 9.6 | Ascend, Cardinal, GPU, system software |
Resolved |
After upgrading the operating system to RHEL 9.6 during the scheduled downtime on May 12, 2026, applications utilizing UCX (... Read more |
2 months 1 week ago | 1 month 1 week ago |
| STAR-CCM+ OpenMPI Job Failed due to Out-of-Memory | Cardinal, Software |
Resolved (workaround) |
After the scheduled downtime on May 12, 2026, STAR-CCM+ has been encountering out-of-memory errors when running OpenMPI jobs. A message similar to the following... Read more |
2 months 1 week ago | 1 month 1 week ago |
| STAR-CCM+ MPI job failure | Cardinal, Software |
Resolved (workaround) |
STAR-CCM+ encounters errors when running MPI jobs using Intel MPI or Open MPI, displaying the following message: ib_iface.c:1139 UCX ERROR Invalid active_speed on...Read more |
1 year 9 months ago | 1 month 2 weeks ago |
| Rolling Reboot for Security Fix |
Resolved |
A rolling reboot is in progress to address CVE-2026-23111 (nf_tables logic bug) for all clusters, including Ascend, Cardinal, and Pitzer. Login nodes will be rebooted first and access... Read more |
1 month 3 weeks ago | 1 month 2 weeks ago | |
| Temporary Login Node Instability on Ascend | Ascend |
Unresolved |
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 |
2 months 1 week ago | 1 month 2 weeks ago |
| Nsight GPU profiler not working due to DCGM conflict | GPU, Infrastructure |
Resolved |
UPDATE (Mar 15, 2023) After the downtime on Mar. 14, 2023, OSC enabled a new Slurm option |
3 years 5 months ago | 2 months 2 weeks ago |
