HPC Service days

To enable disruptive maintenance of the system and also to enable defragmentation of the CPU resources available, service days are scheduled on a regular basis.

Jobs will only start if their requested walltime fits before the next service day. The time to the next service day, in seconds, can be found by running the command:

time2service

You can submit a job requesting the maximum amount of walltime up until the next service day using as follows:

qsub -l walltime=`time2service`<other qsub options><jobscript>

This is only effective if the job starts immediately, otherwise it will queue until after the service day.

Service day schedule

Service days usually run from 8.00am to 6.00pm but may end earlier if service work is complete. The current schedule is:

  • Wednesday 17 July 2019
  • Wednesday 4 September 2019

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