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Hyak consists of 1 cluster: mox.hyak (the 2nd generation hyak system).

Current Status


mox.Hyak is offline to troubleshoot issues. Updates will be sent online.*   Please subscribe to the hyak-users mailing list for updates on system outages and maintenance.  

* A maintenance reservation is in place for the the February scheduled maintenance on December 14th, 2020at 9am Tuesday, February 9th 2021.

*When a maintenance reservation is in place, jobs whose time limit (sbatch --time parameter) could allow the job to extend into the maintenance period will not be allowed to start by the scheduler.  The squeue command will show the reason as 'ReqNodeNotAvail'.

Hyak will be offline from 9:00 am - 5:00 pm for scheduled maintenance the second Tuesday of every month. Every third month (Feb, May, Aug, Nov), the maintenance window will last from 9:00 am to 9:00 the following morning. More on the Maintenance schedule.