[GE users] power off idle nodes

reuti reuti at staff.uni-marburg.de
Mon Feb 8 12:56:57 GMT 2010

Am 08.02.2010 um 11:31 schrieb marcingoldyn:

> We have Service Domain Manager with Power Saving adapter.

I'm also thinking of implementing some power saving feature. How  
sophisticated is this setup using SDM? I mean: suppose one machine is  
switched off, then some jobs are submitted. But as these jobs require  
more than one mache each, switching on the one switched-off machine  
is useless. Will it discover that at least one other machine needs to  
get idle before any further action should happen and switch it on at  
that time?

A simple approach could also be to look at the 15 minutes avg. load  
(3rd value in `uptime`) and issue an `ipmitool ... chassis power  
soft` when there is no load and no job having this node assigned any  
longer; and issuing `ipmitool ... chassis power on` when there are  
waiting jobs.

-- Reuti

> Marcin
> W dniu 2010-02-08 11:03, cgull pisze:
>> Hi,
>> We would like to automatically switch off machines when they have  
>> been idle for a time approx an hour.
>> Is there anyway through Sun Grid Engine to do this, or do we need  
>> to create our own scripts to do this?
>> Maybe we need to install something like Hedeby to work with SGE to  
>> do this?
>> Any thoughts on the best way to achieve this would be appreciated.
>> Thanks for your time in advance.
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