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
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:

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1 year 11 months ago 1 year 5 months ago
OpenMPI 4 and NVHPC MPI Compatibility Issues with SLURM HWLOC Ascend, Cardinal, Software Resolved
(workaround)

A pure MPI application using mpirun or mpiexec with more ranks than the number of NUMA nodes may encounter an error similar to the following:...

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1 year 6 months ago 1 year 3 months ago
Matlab parallel pool cannot connect Matlab, Pitzer Resolved

In some cases, matlab would hang with connecting to parallel pool on Pitzer. This was discovered in the 2026 January downtime. In order to mitigate this we have introduced the "current"...

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9 months 1 week ago 5 months 4 weeks ago
Lustre bug causing Oakley login node crashes filesystem, login Resolved

Over the past two weeks we have experienced Oakely login node crashes potentially caused by a Lustre bug.  The bug (or issue otherwise) seems to be activated when a user does operations on a...

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11 years 1 month ago 11 years 1 week 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
"Forgot your password?" Unavailable Account Management, client portal Resolved

Password changes cannot be completed via the "Forgot your password?" tool at the login page of the Client Portal (my.osc.edu).

Passwords can be changed once you log into the Client Portal...

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7 years 3 months ago 7 years 3 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 3 days ago 6 years 12 months ago
Scratch and Project are hung; schedulings have been paused Batch, filesystem Resolved

1:00PM 4/6/2017 Update:  The Scratch and Project file systems are back to normal service. Scheduling on systems are resumed. We are still investigating the causes to this problem...

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9 years 6 months ago 9 years 6 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
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 3 months ago 12 years 3 months ago

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