preempt_sort attribute will only have one value

Owned by tejas pai
Last updated: May 29, 2020

Link to forum discussion - http://community.pbspro.org/t/making-preempt-sort-attribute-obsolete/2113

Details:

Currently preempt_sort by default is set to 'min_time_since_start'. Basically between jobs selected for preemption it will choose to preempt jobs with least amount of running time first. When unset preempt_sort, the jobs selected for preemption will be sorted with longest running time first. It does not make make sense to select jobs that have longest running time for preemption.

Therefore we propose that only min_time_since_start' value will be set for preempt_sort so that scheduler chooses jobs for preemption with least running time first.

The users will not be able to UNSET preempt_sort, on UNSET the value will remain 'min_time_since_start'