We are currently experiencing temporary instability on the Ascend login nodes.

A rolling reboot is in progress to address CVE-2026-23111 for all clusters, including Ascend, Cardinal, and Pitzer.

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

Titlesort ascending Category Resolution Description Posted Updated
HWloc warning: Failed with: intersection without inclusion Ascend, Cardinal Resolved
(workaround)

When running MPI+OpenMP hybrid code with the Intel Classic Compiler and MVAPICH 3.0, you may encounter the following warning message from hwloc:

... Read more
1 year 7 months ago 1 year 1 month ago
HPC Job Activity Table: Save Report client portal Resolved

If you save a report at the HPC Job Activity Table, you must exit out of your web browser in order to have the report saved correctly and be able to switch in between the reports.

There is...

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6 years 10 months ago 6 years 3 months ago
Home directory quota is inaccurate after Dec 14 Downtime Resolved

The home directory quota when logging into systems, or displayed through OnDemand or client portal (my.osc.edu) is inaccurate after Dec 14 Downtime. We are working on the fix now.

Please...

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4 years 6 months ago 4 years 4 months ago
HCOLL-related failures in OpenMPI applications Cardinal, Software Resolved
(workaround)

Several applications using OpenMPI, including HDF5, Boost, Rmpi, ORCA, and CP2K, may fail with errors such as

mca_coll_hcoll_module_enable() coll_hcol: mca_coll_hcoll_save_coll_handlers...
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1 year 7 months ago 1 year 1 month ago
Handling full-node MPI warnings with MVAPICH 3.0 Ascend, Cardinal, Pitzer, Software Resolved
(workaround)

When running a full-node MPI job with MVAPICH 3.0 , you may encounter the following warning message:

[][mvp_generate_implicit_cpu_mapping] WARNING: You appear to be...
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1 year 7 months ago 4 months 1 week ago
Group membership discrepancies Account Management, client portal Resolved

Group changes may not always propagate through to our HPC Systems, although they show in the Client Portal (my.osc.edu). 

Issue: if you are added to a project that is still in a REQUESTED...

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6 years 11 months ago 6 years 9 months ago
Grafana is not available since Dec 14 Downtime Resolved

Grafana (grafana.osc.edu) is not available since Dec 14 Downtime. We will fix it soon.

If you have any questions, please contact OSC Help

4 years 5 months ago 4 years 5 months ago
GPU/VIS nodes for various OOD apps are broken Cardinal, OnDemand, Outage, Software Resolved

After the most recent downtime we discovered that various OOD apps relying on the "virtualgl" module on Cardinal were broken. We have since updated and pinned the latest virtualgl version...

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4 months 1 week ago 4 months 1 week ago
GPU Memory Not Released Causing OOM in Subsequent Jobs GPU Resolved
(workaround)

We have noticed that GPU memory is not being properly released in some jobs, causing subsequent jobs on the same nodes to run out of memory (OOM). We are currently working on a resolution...

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8 months 3 weeks ago 3 months 4 days ago
GPFS problems with /fs/project and possibly /fs/scratch filesystem Resolved

There was an issue with GPFS clients that affected /fs/project and possibly /fs/scratch between around 3:30AM and 8:30AM on Sunday September 4th. Some jobs from clients were also impacted. 

... Read more
3 years 9 months ago 3 years 9 months ago

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