On Wed, 18 May 2011 at 9:48pm, Dave Love wrote
"Hung-ShengTsao (Lao Tsao) Ph.D." <[email protected]> writes:
as a side remark
since you configure 3 queues for each host , in order not to over subscribe the
cpu(h_slots)
you will need to define h_slots as consumable complex
see this paper http://www.sun.com/blueprints/0607/820-1695.pdf
??
All you need to avoid over-subscription, whatever the queue defs, is
$ qconf -srqs host-slots
{
name host-slots
description "restrict slots to core count"
enabled TRUE
limit hosts {*} to slots=$num_proc
}
assumong the default slots definition
If you define over-subscription as more jobs than *physical* cores, won't
the above RQS fail to prevent it on nodes with hyperthreading active?
--
Joshua Baker-LePain
QB3 Shared Cluster Sysadmin
UCSF
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