Re: [Condor-users] Condor pool nodes using WOL

[Philipp Kolmann <kolmann@xxxxxxxxxxxxxxxx>]

Hi,

David Wallom schrieb:
> In order to satisfy the dual needs of a department we are trying to  
> instigate a method of using Wake On Lan with Condor so that a small  
> number of nodes stay up constantly to satisfy instantaneous demand  
> but the rest of them are sleep able to be woken on demand... Has  
> anyone else tried this? It would of course save massively on  
> electricity etc.

I have realised that. I have made a small script that I call via cron to 
check if there are any jobs not running in the queue and in case there 
are jobs in need, I issue a WOL call.

Script attached.

Regards
Philipp

--
If you have problems in Windows: REBOOT
If you have problems in Linux:   BE ROOT

#!/bin/sh

# Copyright Philipp Kolmann, 2005
# kolmann@xxxxxxxxxxxxxxxx

# Wakes machines if there are condor jobs waiting.
# MacAddress List comes from lrb1. Possibility to specify a special host on the
# commandline

condor_q -xml | grep JobStatus
if [ "$?" = "1" ]
then
  exit 0
fi

if [ "x${1}" == "x" ] ; then
  finger -l pclist@lrb1 | grep CLU | awk -F: "{print(\$3)}" | \
  sed s/-/:/g | xargs wakeonlan
else
  finger -l pclist@lrb1 | grep CLU | grep ${1} | awk -F: "{print(\$3)}" | \
  sed s/-/:/g | xargs wakeonlan
fi