We are currently experiencing temporary instability on the Ascend login nodes.

A rolling reboot is in progress to address CVE-2026-23111 for all clusters, including Ascend, Cardinal, and Pitzer.

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
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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9 months 2 days ago 9 months 2 days ago
OSC OnDemand is not responsive OnDemand Resolved

OSC OnDemand is not responsive now. We are investigating the problem now. Please use other ways like ssh to connect to OSC HPC systems. 

We apologize for any inconvenience this may cause...

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6 years 3 months ago 6 years 3 months ago
Login Shell Issues on Oakley Account/Shell Resolved

UPDATE: The shells have all been switched back for affected users, and you can submit jobs normally again.  Additionally, if you are still logged in and have the incorrect shell, logging back out...

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12 years 13 hours ago 11 years 12 months ago
STAR-CCM+ MPI job failure Cardinal, Software Resolved
(workaround)

STAR-CCM+ encounters errors when running MPI jobs with Intel MPI or OpenMPI, displaying the following message:

ib_iface.c:1139 UCX ERROR Invalid active_speed on mlx5_0...
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1 year 8 months ago 2 weeks 4 days ago
Libraries not compatible with cxx17 Software Resolved

Libraries for intel/18.0.3 and intel/17.0.7 are not compatible with cxx17.

Intel compilers need gnu library to support 2017 ISO C++ standard, and cxx17 is the module to load the gnu...

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7 years 9 months ago 7 years 9 months ago
Rolling reboots of Owens and Pitzer, starting from Tuesday, Jan 22, 2019 Batch, login, Owens Resolved

...

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7 years 5 months ago 7 years 4 months ago
Performance degradation of ESS filesystem filesystem Resolved

Updated 2:10PM November 25, 2021:

The...

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4 years 6 months ago 4 years 6 months ago
Globus Online Transfers Failing Connectivity, filesystem, Web Services Resolved

We are currently investigating multiple reports of Globus Online transfers to/from OSC to other sites are failing.  Transfers to/from Globus Personal Endpoints do not seem to be affected.

...

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10 years 2 months ago 8 years 1 week ago
MATLAB (server) missing functionality Software Resolved

You may encounter missing functionality on MATLAB (server) such as SIMULINK not being available. This occurs when using MATLAB version r2024a. Please use MATLAB r2024b

If...

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10 months 6 days ago 8 months 2 weeks ago
Network card re-seat Network Resolved

At 8AM on Tuesday, July 9th 2013, we will be re-seating a network card in a switch at our operations center. It is possible that a brief (~10 minute) outage may occur. Jobs will pause for the...

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12 years 11 months ago 12 years 11 months ago

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