• ​​​​​​Date: Wednesday, September 16, 2026

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
Segmentation fault from openmpi/1.10-hpcx and 2.0-hpcx on Owens Owens, Software Resolved

We have found that recent MPI jobs using openmpi/1.10-hpcx and openmpi/2.0-hpcx on Owens may complete or hang until the job is killed, but receive segmentation fault. Some applications might be ...

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7 years 1 month ago 7 years 1 month ago
MPI-IO issues on home directories with Intel MPI 2019.3 Pitzer, Software Resolved
(workaround)

Certain MPI-IO operations with intelmpi/2019.3 may crash, fail or proceed with errors on the home directory. We do not expect the same issue on our GPFS file system, such as the...

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1 year 4 months ago 1 year 4 months ago
Rolling reboot of all clusters, starting from Wednesday morning, April 19, 2017 Batch, Maintenance, Owens, Ruby Resolved

1:40PM 4/27/2017 Update: Rolling reboots are completed. 

3:10PM 4/18/2017 Update: Rolling reboots on Owens have started to address GPFS errors occured...

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9 years 5 months ago 9 years 4 months ago
MyOSC unavailable on Tuesday, August 2, 2022, from 10 am to 12 pm client portal Resolved

We will be adding a charge account structure. MyOSC will be unavailable on Tuesday, August 2, 2022, from 10 am to 12 pm while the update occurs. See...

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4 years 1 month ago 4 years 1 month ago
Lustre is still offline. HPC systems back up Maintenance Resolved

Day One of the scheduled downtime has been completed, and HPC operations have resumed. As planned, Lustre work will extend into Day Two. Jobs using /fs/lustre or $PFSDIR cannot run until this work...

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12 years 2 months ago 12 years 2 months ago
Ansys DesignModeler with hardware acceleration Software Resolved
(workaround)

Ansys DesignModeler with hardware acceleration is not working.

With Ansys version greater than 19.1, DesignModeler is working with software rendering mode, but it is very slow.

 ...

6 years 9 months ago 1 year 4 months ago
Replacement of Owens Ethernet switches from Dec 14, 2018 Network, Owens Resolved

Updated on Jan 16, 2019, at 09:20 AM:

The replacement is done except for the three switches including the login nodes of Owens. We posted another notice for more...

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8 years 3 days ago 7 years 8 months ago
Reboot of Public-Facing Systems for Security Fix Resolved

Updates on May 12:

All  public-facing systems have been rebooted. 

Original Post:

Due to a critical...

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4 months 2 weeks ago 4 months 6 days ago
Login problem Resolved

Around 10am EDT, OSC began to experience problems with our infrastructure.  Login sessions began to be affected around 11:30 EDT. The problem was resolved around 1pm EDT, and all systems have...

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2 years 4 months ago 2 years 4 months ago
NFS outage on Thursday Jan 17 from 7am to 8am filesystem Resolved

Update:

This work has been canceled and will be done during downtime on Feb. 5. 

Original Post:

On Thursday, January 17th from 7 am to 8 am OSC will have a GPFS...

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7 years 8 months ago 7 years 8 months ago

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