Over the past two weeks we have experienced Oakely login node crashes potentially caused by a Lustre bug.

HPC Changelog

Maximum job size reduced

Date: 
Tuesday, February 3, 2015 - 11:45am
Supercomputer: 

The maximum job size on Glenn has been reduced from 256 nodes (2048 cores) to 128 nodes (1024 cores).  User and group limits are still at 2048 cores total.

ANSYS default module changes

Date: 
Monday, February 2, 2015 - 4:15pm
Supercomputer: 

We have updated the default module of ANSYS on both Oakley and Glenn. The default module of ANSYS is ANSYS 14.5.7 on Oakley and ANSYS 14.5 on Glenn. For example, if you use module load ansys on Oakley, ANSYS 14.5.7 (instead of ANSYS 13.0) is loaded. We however keep the older versions of ANSYS installed on our cluster.

FLUENT default module changes

Date: 
Monday, February 2, 2015 - 4:00pm
Supercomputer: 

We have updated the default module of FLUENT on both Oakley and Glenn. The default module of FLUENT is FLUENT15.0.7 on Oakley and FLUENT 14.5 on Glenn. For example, if you use module load fluent on Oakley, FLUENT 15.0.7 (instead of FLUENT 13.0) is loaded. We however keep the older versions of FLUENT installed on our cluster.

222 compute nodes decommissioned on Glenn

Date: 
Friday, September 12, 2014 - 5:00pm
Supercomputer: 

222 compute nodes on Glenn have been removed from service to begin preparing for the arrival of Ruby compute nodes. There have been no other associated system changes. Jobs on Glenn may see more frequent waits in the queue than they have in the past due to a reduction of available resources, depending on scheduler load.

Amber 14 now available

Date: 
Friday, September 12, 2014 - 3:45pm
Supercomputer: 

Amber 14 has been installed on Oakley and Glenn; usage is via the modules amber/14 on Oakley and amber14 on Glenn.  For information on available executables and installation details see the software page for Amber or the output of the respective module help command, e.g.: module help amber/14

Updated Intel Compiler Licenses

Date: 
Wednesday, September 10, 2014 - 8:00am
Supercomputer: 

Intel compiler licenses have been updated. This should be invisible on the HPC systems. If you are a statewide user of the license, please set the LM_LICENSE_FILE environment variable to 28519@license2.osc.edu before reporting issues.

Jobs requesting Lustre are rejected by qsub

Date: 
Friday, August 15, 2014 - 11:30pm
Supercomputer: 

On both production clusters, we have begun rejecting jobs that request the use of Lustre or $PFSDIR in order to reduce job failures caused by the triggering of a bug that crashes the filesystem. If you have a GPFS allocation, you may if appropriate want to move your data there in order to maintain productivity while the Lustre service is in a degraded state.

CUDA 5.5 now available

Date: 
Tuesday, March 25, 2014 - 9:45am
Supercomputer: 

CUDA 5.5 has been installed on Oakley and Glenn, and is available by loading the cuda-5.5 module on Glenn, and the cuda/5.5 module on Oakley.

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