Re: [HTCondor-users] Preempt jobs which exceed their request_memory - but no parallel universe?

[Greg Thain <gthain@xxxxxxxxxxx>]

On 03/03/2015 05:31 AM, Steffen Grunewald wrote:
> I'm confused.
>
> I have a couple of users who underestimate the memory their jobs
> would attempt to allocate, and as a result some worker nodes end
> up swapping heavily.
> I tried to get those jobs preempted, and sent back into the queue
> with their updated (ImageSize) request_memory:
>
> # Let job use its declared amount of memory and some more
> MEMORY_EXTRA            = 2048
> MEMORY_ALLOWED          = (Memory + $(MEMORY_EXTRA)*Cpus)
> # Get the current footprint
> MEMORY_CURRENT          = (ImageSize/1024)
> # Exceeds expectations?
> MEMORY_EXCEEDED         = $(MEMORY_CURRENT) > $(MEMORY_ALLOWED)
> # If exceeding, preempt
> #[preset]PREEMPT        = False
> PREEMPT                 = ($(PREEMPT)) || ($(MEMORY_EXCEEDED))
> WANT_SUSPEND            = False
This should all work.  Can you wrap your PREEMPT expression in the 
debug() function like this:

PREEMPT = debug($(PREEMPT) || ($(MEMORY_EXCEEDED)))

What are WANT_VACATE and KILL set to?  If you don't want to give these 
jobs a grace period, you
probably want WANT_VACATE = false.

-greg