The Ohio Supercomputer Center (OSC) is experiencing an email delivery problem with several types of messages from MyOSC. 

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
Project space giving errors "No space left on device" filesystem Resolved

11/01/2016 11:52AM Update: This issue has been fixed. 

We have become aware of a problem with the Project storage space that gives errors "No space left on device". The... Read more

7 years 5 months ago 7 years 5 months ago
A partial-node MPI job failed to start using Intel MPI mpiexec Owens, Pitzer, Software Resolved
(workaround)

A partial-node MPI job may fail to start using mpiexec from intelmpi/2019.3 and intelmpi/2019.7 with error messages like

[mpiexec@o0439.ten.osc.... Read more          
3 years 5 months ago 2 years 2 weeks ago
Brief disruption to external network, 2013/12/29 Connectivity Resolved

Between 5:00AM and 9:00AM EDT on Sunday,... Read more

10 years 3 months ago 10 years 3 months 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... Read more

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

5 years 7 months ago 5 years 3 months ago
Possible performance degradation after August 9th's downtime filesystem Resolved

Updates on May 20 2023:

verbsRDMA is enabled on Pitzer. 

Updates on Dec 14 2022:

verbsRDMA is enabled on Owens during December 13 downtime... Read more

1 year 8 months ago 11 months 5 days ago
Problems with Project Space (/nfs/gpfs) filesystem Resolved

(9/8/15 14:21 Eastern) Project space appears to be back to normal operation. We are running some tests to verify that the problem is fully resolved.


As of early afternoon, Sept. 8,... Read more

8 years 7 months ago 8 years 7 months ago
GPFS problems on Owens filesystem Resolved

Owens is experiencing a disruption of GPFS availability. At about 4:17PM today (January 6th), OSC monitoring noticed a problem with mounts of Project on the Owens supercomputer. Jobs may have been... Read more

4 years 3 months ago 4 years 3 months ago
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 ... Read more

4 years 9 months ago 4 years 8 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... Read more

7 years 6 days ago 6 years 11 months ago

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