From 48dddc23927d75b71336f1ce07a908d394fdee15 Mon Sep 17 00:00:00 2001 From: Morris Jette <jette@schedmd.com> Date: Wed, 17 Jul 2013 11:01:56 -0700 Subject: [PATCH] Update documenation for preemption --- doc/html/preempt.shtml | 29 +++++------------------------ 1 file changed, 5 insertions(+), 24 deletions(-) diff --git a/doc/html/preempt.shtml b/doc/html/preempt.shtml index 66a09469ee7..31c812119b3 100644 --- a/doc/html/preempt.shtml +++ b/doc/html/preempt.shtml @@ -15,29 +15,10 @@ Alternately, the low priority job(s) can be requeued and started using other resources if so configured in newer versions of SLURM. </P> <P> -In SLURM version 2.0 and earlier, high priority work is identified by the -priority of the job's partition and low priority jobs are always suspended. -The job preemption logic is within the <I>sched/gang</I> plugin. -In SLURM version 2.1 and higher, the job's partition priority or its -Quality Of Service (QOS) can be used to identify the which jobs can preempt -or be preempted by other jobs. -</P> -<P> -SLURM version 2.1 offers several options for the job preemption mechanism -including checkpoint, requeue, or cancel. -the option of requeuing low priority jobs -Checkpointed jobs are not automatically requeued or restarted. -Requeued jobs may restart faster by using different resources. -All of these new job preemption mechanisms release a job's memory space for -use by other jobs. -In SLURM version 2.1, some job preemption logic was moved into the -<I>select</I> plugin and main code base to permit use of both job preemption -plus the backfill scheduler plugin, <i>sched/backfill</I>. -</P> - -<P> -SLURM version 2.2 offers the ability to configure the preemption mechanism -used on a per partition or per QOS basis. +The job's partition priority or its Quality Of Service (QOS) can be used to +identify the which jobs can preempt or be preempted by other jobs. +SLURM offers the ability to configure the preemption mechanism used on a per +partition or per QOS basis. For example, jobs in a low priority queue may get requeued, while jobs in a medium priority queue may get suspended. </P> @@ -392,6 +373,6 @@ order to support ideal placements such as this, which can quickly complicate the design. Any and all help is welcome here! </P> -<p style="text-align:center;">Last modified 10 December 2012</p> +<p style="text-align:center;">Last modified 17 July 2013</p> <!--#include virtual="footer.txt"--> -- GitLab