On Thu, 26 Apr 2012 at 13:33 -0000, Joshua Baker-LePain wrote:
> Well, this is disappointing. I noticed something similar with our rather
> ancient 6.1u3 install -- scheduling runs were taking a long, long time
> whenever anybody submitted jobs to our PEs, and setting "max_reservation 0"
> made them run much more quickly. We do have 4 RQSs, but I haven't tried
> disabling them as they are rather essential to our setup. In all cases,
> schedd_job_info was set to false.
>
> I'm in the midst of installing hardware for a new server on which I'll be
> running a much newer SGE version. I was rather hoping that this would allow
> me to get reservations, RQSs, and "schedd_job_info true" (since it is rather
> handy) all working together. Apparently not...
I wouldn't let my issue discourage you. I think the issue is of
limited scope, not all RQSs have issues.
I brought this up in part because this specific RQS is often mentioned
as being useful.
I do have a couple other RQSs defined. These other ones don't seem to
cause issues. I think something in the max-slots one is causing the
main issue (possibly iterating over all hosts for every job
processed).
For the record I have the following:
% qconf -srqs
{
name max-slots-on-all-hosts
description "Don't over commit host slots"
enabled FALSE
limit hosts {*} to slots=$num_proc
}
{
name maint-nodes
description "Nodes requiring to hardware maintenance"
enabled TRUE
limit hosts {@maint} to slots=0
}
{
name user-slot-limit
description "Limiting slots for specific users."
enabled TRUE
limit users stuartb to slots=99999
limit users user1 to slots=1000
limit users user2 to slots=99999
}
I also find it handy the you can use "qconf -mrqs" to change all of
the RQSs at once (including renaming them). I don't think any of the
other -m* options work in a similar fashion.
Stuart
--
I've never been lost; I was once bewildered for three days, but never lost!
-- Daniel Boone
_______________________________________________
users mailing list
[email protected]
https://gridengine.org/mailman/listinfo/users
