Jobs reports 'excessive memory usage' message
A batch job output may contain warnings about excessive memory usage.
Pitzer
Rolling reboot of Owens and Pitzer starting from February 3, 2020
We will have rolling reboots of Owens and Pitzer clusters including login and compute nodes, starting from Monday, February 3, 2020
Large MPI job startup hang with mvapich2/2.3 and mvapich2/2.3.1
We have found that large MPI jobs may hang at startup with mvapich2/2.3 and mvapich/2.3.1 (on any compiler dependency) due to a known bug that has been fixed in release 2.3.2. If users experience this issue, please switch to mvapich2/2.3.2.
Error when downloading SRA data on computing nodes
NCBI blocks any connection from computing nodes because they are behind firewalls. Thus OSC users cannot use SRA tools to download data "on-the-fly" at runtime on computing nodes, e.g. 'fastq-dump -X 5 SRR390728'. OSC users must download SRA data on login using the command 'prefetch' before any sequence analysis. Please see the section 'Download SRA Data' in the SRA Toolkit software page for more detail.
Rolling reboot of all clusters, starting from 9:30 AM June 05, 2019
We will have rolling reboots of all three clusters starting 9:30 AM June 05, 2019.
Extra messages during job startup and ending on Owens and Pitzer
Extra 'pmlogger' messages during job startup and ending on Owens and Pitzer on March 11, 2019
Gaussian g16b01 G4 problem
Gaussian-4 (G4) theory calculations in Gaussian 16 Rev. B.01 can produce erratic results. A workaround is to use Gaussian 16 Rev. A.03 or Rev. C.01, e.g.:
module load gaussian/g16c01
Gaussian 16 Rev. A.03 has been made the default module on all clusters. A typical symtom is energy blow up in step 8 resulting in an unusually large, erroneous HF/GFHFB2 energy and consequently an incorrect G4 total energy.
LAMMPS ppn=40 GPU problem on Pitzer
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.
