Re: [Condor-users] partitionable slots are not returned?

[Matthew Farrellee <matt@xxxxxxxxxx>]

On 03/28/2011 03:02 AM, Carsten Aulbert wrote:
> hi all,
>
> we just started to venture into partitioning slots, the set-up on one machine
> is pretty simple right now:
>
> SLOT_TYPE_1 = cpu=4, ram=7800, swap=30%
> NUM_SLOTS_TYPE_1 = 1
> SLOT_TYPE_1_PARTITIONABLE = True
>
>
> This slot is then advertised correctly. However, running a couple of jobs and
> we see that the "partitioned slots" are not returned to the pool:
>
> gpu016:~# condor_status -direct testhost
>
> Name               OpSys      Arch   State     Activity LoadAv Mem
> ActvtyTime
>
> slot1@xxxxxxxxxxxx LINUX      X86_64 Owner     Idle     0.000  6775
> 0+00:44:47
> slot1_1@xxxxxxxxxx LINUX      X86_64 Claimed   Busy     0.000  1024
> 0+00:16:16
> slot1_2@xxxxxxxxxx LINUX      X86_64 Owner     Idle     0.000     1
> 0+00:21:50
>                       Total Owner Claimed Unclaimed Matched Preempting Backfill
>
>          X86_64/LINUX     3     2       1         0       0          0        0
>
>                 Total     3     2       1         0       0          0        0
>
> slot 1_2 was not used for about 30 minutes now, slots1_1 was idle before and a
> new job took that slot again - however, this is pretty bad, as the new job
> only requested a single core and slot1_1 had 3 cores reserved.
>
> I cannot find anything about configuring the return into Condor, thus I assume
> it should *just* happen, any idea what's wrong here?
>
> Cheers
>
> Carsten

I would guess that your START is preventing the slot from handling any 
jobs or going back to the Unclaimed state. When a dynamic slot hits 
Unclaimed it gets folded back into the partitionable slot.

You can identify the slot types with PartitionableSlot, DynamicSlot 
attributes.

Best,


matt