[Triolith-users] Triolith service stop next Thursday

[Mats Kronberg]

Dear Triolith users,

On Thursday next week (March 21st) from 09:00 CET all compute nodes in
Triolith will be unavailable.

This is due to a required upgrade of the firmware in all Infiniband
networking equipment in Triolith that requires all jobs to be stopped.
We will also do some other upgrades and tests during this service
stop.

As soon as the upgrades and testing is complete, we will allow queued
jobs to start again. It's hard to say exactly how long this will take,
but we estimate somewhere between 4 and 8 hours. We will also reboot
the login nodes during this service stop. This will take 5-15 minutes,
but apart from that time, the login nodes will be available, so you
can still access your data and submit jobs.

No running or queued jobs will be affected. Instead we have configured
the system to not allow any jobs to start if they can not finish
before Thursday 09:00. E.g right now, the longest job that is allowed
to start is slightly less than 7 days. If you need to run jobs between
now and Thursday, make sure that you request a short enough wall time
that the job can finish before Thursday 09:00.

-- 
Mats Kronberg, NSC Support <support at nsc.liu.se>