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 ascending Description Posted Updated
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 7 months ago 7 years 7 months ago
NCCL hang on Ascend dual-GPU nodes Ascend, GPU, Software Resolved
(workaround)

Users may encounter the following message and experience NCCL hangs if the first operation is a barrier when running multi-GPU training. We have identified...

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1 year 3 months ago 1 year 3 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 4 days ago 10 years 4 days 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 9 months ago 3 years 9 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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8 months 1 week ago 4 months 4 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 4 days ago 12 years 11 months 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 6 months ago 6 years 6 months ago
Owens batch is down Owens Resolved

Updated at 9:07PM on Dec 20, 2017 :

Owens batch was restored by updating Torque resource manager at 6:37pm Dec 19, 2017. 

Original Post at 4:45PM on Dec 19...

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8 years 8 months ago 8 years 8 months 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 11 months ago 2 months 3 weeks ago
Core and Node labels on Classroom app are incorrect Resolved

The core and node labels on the Classroom app (class.osc.edu) incorrectly displays as '0', regardless of the requested number of cores for a job. While this label is incorrect, the job is still...

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1 year 8 months ago 1 year 7 months ago

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