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 ascending Description Posted Updated
cuda-gdb segmentation fault on startup Owens, Pitzer, Software Resolved

The CUDA debugger, cuda-gdb, can raise a segmentation fault immediately upon execution.  A workaround before executing cuda-gdb is to unload the xalt module, e.g.: 

module unload...
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6 years 5 months ago 4 years 6 months ago
my.osc.edu logins failing Account Management Resolved

Logins to my.osc.edu are failing. This is unrelated to our InfiniBand issue; a router change at OARnet is the believed cause. They are working on re-establishing the necessary routing.

12 years 2 months ago 12 years 2 months ago
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
LAMMPS ppn=40 GPU problem on Pitzer Pitzer, Software Resolved

On Pitzer both LAMMPS 22Aug18 and 5Jun19 gpu jobs with ppn=40 hang immediately after lammps begins execution.  A workaround is to use ppn=39.

7 years 11 months ago 6 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
Emergency maintenance in OSC’s data center Feb 10 2022 Outage, Owens, Pitzer Resolved

OSC will shut down significant portions of the Owens and Pitzer clusters for several hours this afternoon (Thursday, Feb....

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4 years 8 months ago 4 years 8 months ago
GPFS hang Issue on 09/08/2016 filesystem Resolved

On Thursday, Sept 8 starting at 19:37, we had some bad interaction that appears to have been caused by the backup client, and the GPFS servers. This resulted in a GPFS hang that propagated I/O...

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10 years 1 month ago 10 years 1 month 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 4 days ago 6 years 12 months ago
8AM 9/11/13 - Brief network disruption to reboot a switch Network Resolved

At 8AM on September 11, 2013, we will be rebooting a network switch to replace a failed card in the switch. Network will be disrupted for 10 to 15 minutes while the work is done. Filesystem mounts...

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13 years 1 month ago 13 years 2 weeks 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

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