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
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...

Read more
9 years 10 months ago 8 years 4 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:...

Read more
1 year 7 months ago 1 year 3 months 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...

Read more
12 years 8 months ago 12 years 8 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....

Read more
4 years 8 months ago 4 years 8 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...
Read more
8 years 5 months ago 4 years 10 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
4 years 2 months ago 3 years 4 months ago
LS-DYNA License problems on all clusters Software Resolved

We are experiencing problems with the LS-DYNA license server. We will resume working on restoring access to this software on October 24th, 2018.

==

It has been fixed and working...

Read more
7 years 11 months ago 7 years 11 months ago
MVAPICH 3.0 hang due to PMI mismatch with Slurm Software Resolved
(workaround)

Applications such as Quantum ESPRESSO, LAMMPS, and NWChem experienced hangs with MVAPICH 3.0 due to a PMI mismatch. MVAPICH 3.0 was built with PMI-1, while newer Slurm versions on RHEL 9...

Read more
1 year 1 week ago 5 months 5 days 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
6 years 9 months ago 6 years 9 months ago
Estimated charging for serial jobs on Oakley is incorrect Batch Resolved

Currently, the estimated RU charge reported at the end of a job shows an incorrect value for serial jobs on Oakley of the entire node. Jobs are being charged the correct amount in the official...

Read more
11 years 1 week ago 8 years 4 months ago

Pages