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
HWloc warning: Failed with: intersection without inclusion Ascend, Cardinal Resolved
(workaround)

When running MPI+OpenMP hybrid code with the Intel Classic Compiler and MVAPICH 3.0, you may encounter the following warning message from hwloc:

... Read more
1 year 11 months ago 1 year 5 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 9 months ago 7 years 9 months ago
Problems with the nightly backup on ess filesystem Backups Resolved

We are having problems with the nightly backup on ess filesystem, causing missing backups of the /fs/ess file system since Monday, August 9th. Backups of home directory and /fs/project are normal...

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5 years 2 months ago 5 years 2 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...

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10 years 3 months ago 10 years 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 10 months ago 8 years 4 months ago
Rolling reboot of Owens starting from Oct 10, 2019 login, Owens Resolved

Updated on 1 PM Oct 17, 2019:

The rolling reboot of Owens has been completed. 

Original Post:

We are having rolling reboots of Owens...

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7 years 1 week ago 7 years 27 min 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 8 months ago 12 years 8 months ago
MyOSC Email Delivery Problems client portal Resolved

The Ohio Supercomputer Center (OSC) is experiencing an email delivery problem with several types of messages from MyOSC, impacting user signup, password changes, and possibly others such as budget...

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2 years 9 months ago 2 years 4 months ago
Issue with submitting job array Batch, Owens Resolved

3:30 PM 5/10/2018 Original Post:

User may have been getting the following error message when trying to submit a PBS job using job arrays:

qsub: submit error (Maximum number of...
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8 years 5 months ago 4 years 10 months ago
Temporary Login Node Instability on Ascend and Cardinal Ascend, Cardinal Resolved

We are currently experiencing temporary instability on the Ascend and Cardinal login nodes, which may result in slow response times or unexpected session disconnects. Our team is actively...

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4 months 2 weeks ago 1 week 1 day ago

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