[Condor-users] condor_rooster - how does it work

["Smith, Ian" <I.C.Smith@xxxxxxxxxxxxxxx>]

Hello All,

As someone who has spent a lot of effort in tying to get our Condor pool to
work with power saving Windows execute hosts I was very interested in
using condor_rooster to wake up machines automatically according to
demand but I cannot for the life of me understand how it works.

Currently the power saving is performed by 3rd party s/w and we do
not use the hibernating features built into Condor. As far as I can
tell when the power saving kicks in, the Condor daemons get killed
and the machine disappears from the pool. I can't work out how
condor_rooster can work out if these machines are available for
wakeup when they are no longer publishing ClassAds.  I don't
see any persistent ClassAds for them - do I need to use the
HIBERNATE in the execute host config ? 

Is there any more documenation available on this - the v. 7.4 manual is a bit
short on info on this.

thanks - in - advance,

-ian.

--------------------------------------------
Dr Ian C. Smith,
e-Science Team,
The University of Liverpool,
Computing Services Department