Owens

System Downtime May 7 2024

A downtime for OSC HPC systems is scheduled from 7 a.m. to 9 p.m., Tuesday, May 7 2024. The downtime will affect the Pitzer, Owens and Ascend Clusters, web portals, and HPC file servers. The state-wide licenses and MyOSC (the client portal) will be available during the downtime. In preparation for the downtime, the batch scheduler will not start jobs that cannot be completed before 7 a.m., May 7. Jobs that are not started on clusters will be held until after the downtime and then started once the system is returned to production status.

Phishing Alert

OSC has been made aware that our website(www.osc.edu) has been scraped and replicated. As a friendly reminder please pay attention to URL addresses you access and OSC will never reach out asking you directly for username/passwords or to log in on websites outside of my.osc.edu or ondemand.osc.edu. Please reach out to oschelp@osc.edu or security@osc.edu if you have any questions or concerns.

Slurm to be Upgraded to Version 23.11.4

OSC is preparing to update Slurm on its production systems to version 23.11.4 in preparation for the deployment of the new Cardinal cluster. This version of Slurm has a number of improvements, but it also has a known regression in behavior where if a job requests both a total number of tasks (--ntasks=N) and a number of tasks per node (--ntasks-per-node=n), the number of tasks per node takes precedence. OSC users are strongly encouraged to review their job scripts for jobs that request both --ntasks and --ntasks-per-node. Jobs should request either --ntasks or --ntasks-per-node, not both.

Submission deadline for OSC Research Symposium is March 9

We invite you to submit a presentation to the OSC Research Symposium, a new opportunity for members of the research computing community to share and discuss their work. The deadline for submissions is March 9. The event, which will be held on Tuesday, April 9, will feature posters, flash talks, birds of a feather sessions and OSC-facilitated breakout sessions. Please visit https://www.osc.edu/supercomputing/sug to learn more about contributing to the Research Symposium.

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