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
NCCL 2.29 Performance Regression on Ascend and Pitzer Clusters Ascend, Pitzer, Software Resolved
(workaround)

We have identified a potential performance regression in point-to-point communication when using NCCL version 2.29 on the Ascend and Pitzer clusters, which results...

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1 month 1 week ago 1 month 1 week 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 7 months ago 7 years 7 months ago
XDMOD outage: 9AM-4PM June 2 2021 Outage Resolved

There is a scheduled outage for XDMOD tool (xdmod.osc.edu) between 9AM-4PM June 2 2021 for upgrading to 9.5.0. During the outage XDMOD will be in maintain mode and not accessible by OSC users. ...

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5 years 3 months ago 5 years 3 months ago
WARN SparkSession in Jupyter + Spark instance Software Resolved
(workaround)

You may encounter the following warning message when running a Spark instance using the default PySpark kernel in a Jupyter + Spark application:

WARN SparkSession: Using an...
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1 year 3 months ago 1 year 3 months ago
June 7th downtime to finish at 6:30PM Connectivity, filesystem, Infrastructure, login, Login Problems, Maintenance, Operations, Outage Resolved

Update: Downtime completed at 6:30PM, June 7th.

 

The June 7th downtime is now slated to be completed at 6:30PM.  Previous estimate was 5PM.

All systems and services will...

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10 years 3 months ago 10 years 3 months ago
Podman storage error due to outdated configuration file Software Resolved
(workaround)

If you experience a storage error such as:

 write /var/tmp/storage388772891/1: no space left on device.

you may have an outdated ~/....

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1 year 1 month ago 1 year 1 month ago
LAMMPS 14May16 velocity command problem on Owens Software Resolved
(workaround)

LAMMPS 14May16 on Owens can hang when using the velocity command.  Inputs that hang on Owens work on Oakley and Ruby.  LAMMPS 31Mar17 on Owens also works.  Here is an example failing input snippet...

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9 years 9 months ago 1 year 3 months ago
ORCA Bind to CORE Failure Software Resolved
(workaround)

The default CPU binding for ORCA jobs can fail sporadically.  The failure is almost immediate and produces a cryptic error message, e.g.:

...
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3 years 4 months ago 1 year 3 months ago
February 11 2014 Scheduled Downtime Outage Resolved

HPC systems are offline today for scheduled quarterly maintenance activity. For details, please visit osc.edu/n

12 years 7 months ago 12 years 7 months ago
Schrodinger 2023.2 does not launch Software Resolved
(workaround)

Schrodinger 2023.2 does not launch through OnDemand or OnDemand desktop, failing with "fatal error"

If you do not need 2023.2 specifically, or you are able to transition to...

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8 months 3 weeks ago 6 months 2 weeks ago

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