OSC is currently experiencing problems with its internal network. Interactive sessions may be slow or unresponsive, but running jobs should not be affected.
Users may experience unable to unload Intel software stack via module rm intel after switching between intel and ohter compilers. This is a known issue with current versions of Lmod on Pitzer and Ruby. The issue will be fixed by upgrading Lmod during system-wide downtime May 19th.
Update on 14 April 2020, 0903:
Work is completed.
There will be maintenance on cluster export services on Tuesday, April 14 from 8:00am to 10:00am. The following services will be affected by this:
Users may encounter under-performing MPI jobs or failures of compiling MPI applications if you are using Conda from system. We found pre-installed mpich2 package in some Conda environments overrides default MPI path. The affected Conda packages are
python/3.6-conda5.2. If users experience these issues, please re-load MPI module, e.g.
module load mvapich2/2.3.2 after setting up your Conda environment.
We will have rolling reboots of all three clusters starting 9:30 AM June 05, 2019.
There have been problems with PBS torque commands including
qstat from the Ruby login nodes since this morning.
Rolling reboots of all three clusters, starting from Tuesday, September 4, 2018
We will have rolling reboots of Owens and Ruby clusters starting from 8 AM Monday, August 6, 2018.