Bill ----- Original Message ----- From: Roy Dragseth <[email protected]> Date: Thursday, November 25, 2010 3:33 am Subject: Re: [Mauiusers] blocked jobs never run To: [email protected]
> On Thursday, November 25, 2010 02:26:57 William G Wichser wrote: > > They are given higher priorirty but because of the fact that > they cannot > > fit, they go into mthe blocked state and never get scheduled. I > given> wide jobs much higher weights. But again, because there > are not enough > > nodes ever available at one time, they sit blocked with less > wide jobs > > keep getting scheduled due only to available cores. > > > > With blocked, do you mean that they are in Idle state or Deferred > state? By blocked I mean that with a showq they are in a blocked state. With diagnose -q they show up as job 620120 violates active SOFT MAXPROC limit of 100 for class A (R: 50, U: 100) > > I assume your jobs are Idle, that is, do the largest jobs stay on > the top of > the list when you do showq -i. (If not, you have set some > throttling policies > in maui that prevent them from becoming eligible for scheduling.) Yes. As mentioned originally, I have a MAXPROC limit set on the class. More explicitly, CLASSCFG[A] PRIORITY=20000 MACPROC=100,120 so, no, they do not show up with showq -i since vthey are blocked. Now I know the priority is highest for these jobs because when I do remove this limit for MAXPROC and restart, they all go into the IDLE state and using showq -i indeed shows these starving jobs at the top. > > Have you set the RESERVATIONDEPTH in maui.cfg? > > We have set > > RESERVATIONDEPTH 3 > BACKFILLPOLICY FIRSTFIT > RESERVATIONPOLICY CURRENTHIGHEST Yes, I have this set: RESERVATIONPOLICY FIRSTFIT #RESERVATIONPOLICY CURRENTHIGHEST ##RESERVATIONDEPTH[0] 8 RESERVATIONDEPTH[0] 24 #RESDEPTH 24 RESDEPTH 24 > > to make the three jobs with highest priority set reservations on > nodes so they > can build up resources over time until they are able to start. > Backfill makes > it possible to fill in shorter jobs while the big jobs are waiting > to start. > > r. > _______________________________________________ > mauiusers mailing list > [email protected] > http://www.supercluster.org/mailman/listinfo/mauiusers > _______________________________________________ mauiusers mailing list [email protected] http://www.supercluster.org/mailman/listinfo/mauiusers
