• ​​​​​​Date: Wednesday, September 16, 2026

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
OnDemand Apps will not open OnDemand Resolved

Since the 10.9.5 OS X update, Apple has changed its security model to only support applications from the Mac App Store and identified developers.  This has caused OnDemand apps to fail to run with...

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11 years 11 months ago 10 years 9 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...

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5 years 7 months ago 5 years 7 months ago
Owens login nodes are impacted due to switch replacement on Thursday, Jan 17, 2019 login, Owens Resolved

We will perform the replacement work of Ethernet switches from 12pm to 3pm on Thursday, Jan 17, which includes all login nodes and 2 quick nodes on Owens. As a result, users won't be able to log...

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7 years 8 months ago 7 years 8 months 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...

1 year 4 months ago 1 year 4 months ago
Negative Balance Emails client portal Resolved

Negative balance emails continue to be sent once an application is submitted.

To confirm whether or not you have truly submitted an application for additional resources and that you can...

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7 years 4 months ago 7 years 1 week 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...

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1 year 3 months ago 1 year 3 months ago
Performance Regression of GPU Nodes on Ruby GPU, Ruby Resolved

We currently have performance regression of Ruby's GPU nodes. Some of the GPU nodes on Ruby will remain in a power-saving state even after an application starts using them, resulting in...

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9 years 9 months ago 8 years 3 months ago
openmpi/4.1.1 is deprecated Resolved

openmpi/4.1.1-hpcx will be removed on November 29th, 2022 due to InfiniBand drivers (MOFED) update. Please use compatible and bug-fixed version 'openmpi/4.1.2-hpcx' to run ORCA or your MPI...

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3 years 9 months ago 3 years 9 months ago
Login Problems with OnDemand and Web-Based Services login Resolved

We are currently experiencing issues with Keycloak IdP that provides authentication for OnDemand and most other web-based services. This may cause login difficulties when accessing these...

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12 months 4 days ago 12 months 4 days ago
2/13/2014 0730 - Reboot of login nodes Outage Resolved

We need to reboot all of the login nodes on our production clusters to fix a minor issue from the downtime. We will be conducting this reboot at 7:30AM on Thursday, February 13th 2014. We expect...

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12 years 7 months ago 12 years 7 months ago

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