Owens
OSC has expanded Pitzer Cluster approximately tripling the peak capacity.
Hyperworks 2020.0 is available on Owens
Date:
Thursday, September 10, 2020 - 4:15pm
System(s):
hyperworks 2020.0 is available on Owens. The state-wide license is available as well.
module load hyperworks/2020.0
ssh connection timeouts and slowness
OSC users may experience slow connections or connection timeouts. The cause appears to be a pattern of coordinated, distributed ssh scans of OSC systems. OSC staff is currently investigating ways to mitigate this.
Please contact oschelp@osc.edu if there are any questions/concerns.
Pitzer Expansion Early User Program
In preparation for the deployment of the new hardware as well as the Slurm migration on Pitzer in fall 2020, OSC would like to invite all members of the client community to participate in the Pitzer Expansion Early User Program in order to test the functionality of new hardware, including Dual GPU and Quad GPU features, and test the new Slurm scheduler and its TORQUE/Moab compatibility. Jobs that are eligible for the early user program will not be charged and there is no registration required, all OSC users are eligible.
Slurm Migration Issues
This page documents the known issues for migrating jobs from Torque to Slurm.
$PBS_NODEFILE and $SLURM_JOB_NODELIST
Please be aware that $PBS_NODEFILE
is a file while $SLURM_JOB_NODELIST
is a string variable.
The analog on Slurm to cat $PBS_NODEFILE
is srun hostname | sort -n
Environment variables are not evaluated in job script directives
Environment variables do not work in a slurm directive inside a job script.
Steps on How to Submit Jobs
How to Submit Interactive jobs
There are different ways to submit interactive jobs.
Using qsub
qsub
command is patched locally to handle the interactive jobs. So mostly you can use the qsub
command as before:
ansys 2020R2 is available on Owens
Date:
Friday, August 14, 2020 - 4:00pm
System(s):
ansys/2020R2 is available on Owens.
module load ansys/2020R2
How to Submit, Monitor and Manage Jobs
Submit Jobs
Use | Torque/Moab Command | Slurm Equivalent |
---|---|---|
Submit batch job | qsub <jobscript> |
sbatch <jobscript> |
Submit interactive job | qsub -I [options] |
|