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
ondemand outage OnDemand Resolved

Resolution notes

The problems with ondemand.osc.edu are now resolved.

Users will encounter errors using...

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4 years 5 months ago 4 years 5 months ago
LAMMPS ppn=40 GPU problem on Pitzer Pitzer, Software Resolved

On Pitzer both LAMMPS 22Aug18 and 5Jun19 gpu jobs with ppn=40 hang immediately after lammps begins execution.  A workaround is to use ppn=39.

7 years 11 months ago 6 years 9 months ago
openmpi/4.1.1 is deprecated Resolved

openmpi/4.1.1-hpcx will be removed on November 29th, 2022 due to InfiniBand drivers (MOFED) update. Please use compatible and bug-fixed version 'openmpi/4.1.2-hpcx' to run ORCA or your MPI...

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3 years 10 months ago 3 years 10 months ago
Scratch filesystem is down filesystem, OnDemand Resolved

Updated on 2:30pm Feb 1st:

Scratch filesystem is back. OnDemand is also available now. 

Original Post:

Scratch filesystem is down now....

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7 years 8 months ago 7 years 8 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 6 months 1 day ago
OSC OnDemand is not responsive OnDemand Resolved

OSC OnDemand is not responsive now. We are investigating the problem now. Please use other ways like ssh to connect to OSC HPC systems. 

We apologize for any inconvenience this may cause...

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6 years 7 months ago 6 years 7 months ago
GPFS hang Issue on 09/08/2016 filesystem Resolved

On Thursday, Sept 8 starting at 19:37, we had some bad interaction that appears to have been caused by the backup client, and the GPFS servers. This resulted in a GPFS hang that propagated I/O...

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10 years 1 month ago 10 years 1 month ago
STAR-CCM+ MPI job failure Cardinal, Software Resolved
(workaround)

STAR-CCM+ encounters errors when running MPI jobs using Intel MPI or Open MPI, displaying the following message:

ib_iface.c:1139 UCX ERROR Invalid active_speed on...
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1 year 12 months ago 3 months 3 weeks ago
8AM 9/11/13 - Brief network disruption to reboot a switch Network Resolved

At 8AM on September 11, 2013, we will be rebooting a network switch to replace a failed card in the switch. Network will be disrupted for 10 to 15 minutes while the work is done. Filesystem mounts...

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13 years 1 month ago 13 years 2 weeks ago
CP2K 6.1 would fail on Pitzer Cascade Lakes (48-core) node: Pitzer Resolved
(workaround)

CP2K 6.1 would fail with the following error when running on Pitzer Cascade Lakes (48-core) node:

Program received signal SIGFPE: Floating-point exception - erroneous arithmetic...
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5 years 3 months ago 1 year 5 months ago

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