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

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... Read more

11 years 8 months ago 10 years 5 months ago
Emergency UPS Maintenance Maintenance Resolved

A UPS in the data center requires some emergency maintenance to be undertaken at 2PM on Oct 11 2023. There is a very small chance that parts of Owens and of the C18 Pitzer nodes may lose power as... Read more

2 years 8 months ago 2 years 7 months ago
Temporary StarCCM License Outage Cardinal Resolved

StarCCM software will be temporarily unavailable starting February 21, 2026.

Why: Our current license expires on Feb 21 at 11:59pm EST.
... Read more

3 months 2 weeks ago 3 months 2 weeks 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... Read more

7 years 4 months ago 7 years 4 months ago
Usage overview graph for storage client portal Resolved

The project storage section for usage overview displays a graph with a percentage for the amount of storage used. Although the values above the graph are correct, the graph itself shows 100%.... Read more

5 years 10 months ago 5 years 6 months ago
NFS service disruption 6/29/16 filesystem Resolved

OSC experienced errors with NFS services the morning of June 29 between 08:37 and 09:12 that may have caused some jobs to fail, or other unexpected behavior.  The... Read more

9 years 11 months ago 9 years 11 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... Read more

9 years 6 months ago 8 years 1 week ago
Using mpiexec/mpirun with Intel MPI on Slurm Software Resolved
(workaround)

Intel MPI on Slurm batch system is configured to support PMI process manager. It is recommended to use srun as MPI program launcher. If you prefer using mpiexec/... Read more

1 year 4 weeks ago 1 year 4 weeks 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... Read more

12 years 4 months ago 12 years 4 months ago
Rolling reboot of Owens and Pitzer starting from July 11, 2022 Owens, Pitzer Resolved

Updated on August 1 2022:

The rolling reboots have been completed. 

Original Post:

We will have rolling reboots of Owens and Pitzer... Read more

3 years 11 months ago 3 years 10 months ago

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