Known issues

Unresolved known issues

Known issue with an Unresolved Resolution state is an active problem under investigation; a temporary workaround may be available.

Resolved known issues

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.

Known Issues

Title Category Resolutionsort descending Description Posted Updated
Large MPI job startup hang with mvapich2/2.3 and mvapich2/2.3.1 Owens, Pitzer, Software Resolved
(workaround)

We have found that large MPI jobs may hang at startup with mvapich2/2.3 and mvapich/2.3.1 (on any compiler dependency) due to a known bug that has been fixed in release 2... Read more

6 years 22 hours ago 6 months 1 day ago
Backup Issues Backups Resolved

Updates on 04/17:

OSC has conducted thorough validations to ensure the integrity of our backup data for user home directories and the /fs/ess filesystem. 

... Read more

1 year 7 months ago 1 year 6 months ago
Brief disruption of GPFS on 8/28/2013 filesystem Resolved

On the morning August 28th, 2013 we will briefly disrupt the GPFS filesystem to reboot servers. This is necessary to upgrade the GPFS system. The in-place upgrade should only briefly interrupt... Read more

12 years 2 months ago 12 years 2 months ago
Rolling reboot of login nodes of clusters at 7:00AM Dec 19, 2017 login Resolved

We will have rolling reboot of login nodes of clusters at 7:00AM Dec 19, 2017 for GPFS version upgrade. It is supposed to be completed in a short period of time. f you encounter any login issues,... Read more

7 years 10 months ago 7 years 10 months ago
Rolling reboot of Pitzer cluster, starting from Feb 03, 2021 Batch, login, Pitzer Resolved

Updates at 10AM Feb 11, 2021:

The rolling reboot is completed. 

Original Post:

We will have rolling reboots of Pitzer cluster including... Read more

4 years 9 months ago 4 years 9 months ago
Storage Service Interruption Outage Resolved

This is resolved. If you do not see the Project or Scratch filesystems in your filebrowser in OnDemand, use the "Restart Web Server" option in the help menu in... Read more

4 days 16 hours ago 4 days 12 hours ago
OSC will remove Jupyter MATLAB Kernel Cardinal, OnDemand Resolved

OSC will remove the default MATLAB Jupyter Kernel on Tuesday, May 20th, 2025. To create your own Jupyter MATLAB Kernel please follow the documentation on the MATLAB Page... Read more

6 months 2 days ago 6 months 2 days ago
Abaqus Service Disruption Expected Software Resolved

Update 12/3/14: 

OSC has acquired its new ABAQUS license with new license terms.  Use is now limited by both institution and for use in educational, institutional, instructional... Read more

11 years 2 weeks ago 10 years 11 months ago
NCCL hang on Ascend dual-GPU nodes Ascend, GPU, Software Resolved
(workaround)

Users may encounter the following message and experience NCCL hangs if the first operation is a barrier when running multi-GPU training. We have identified... Read more

5 months 2 weeks ago 5 months 1 week ago
Armstrong inaccessible Resolved

Update: 2PM March 12th: Armstrong is back up and running.  Please notify oschelp@osc.edu of any lingering issues.


As of 10AM Thursday March 12th... Read more

10 years 8 months ago 10 years 8 months ago

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