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I use ecj 14.

I usually kill the master with Ctrl-C, and make the clients exit when the connection is lost.

Istvan


From:  Liviu Panait <[log in to unmask]>
Reply-To:  ECJ Evolutionary Computation Toolkit <[log in to unmask]>
To:  [log in to unmask]
Subject:  Re: Master/Slave
Date:  Fri, 21 Apr 2006 12:24:47 -0400
>Dear Istvan,
>
>>Is there any way to kill all the slave processes after the master  
>>goes down? I modified the previous version so that the slaves would
>>  exit, but after upgrading I forgot to do this, and now I have  
>>slaves running on my entire cluster and they would not exit. Any  
>>way that I would not have to log into all nodes and kill them all  
>>one-by-one?
>Of course there is a way, you can always write a script.... ;-)
>
>On a more serious note, which version are you using?  I tried
>version  15, and the slaves seem to exit when the master shuts down.
>  The way  this is implemented is that all slaves are sent a
>V_SHUTDOWN message  when the master is about to exit.  When the
>slaves receive this  message, they close their sockets, and then
>they exit (this is  implemented via a return call from the main
>function).  Is it  possible that the return call is commented out in
>your version for  some reason?
>
>Best regards,
>
>Liviu.
>
>>From:  Sean Luke <[log in to unmask]>
>>Reply-To:  ECJ Evolutionary Computation Toolkit <ECJ-INTEREST-
>>[log in to unmask]>
>>To:  [log in to unmask]
>>Subject:  ECJ 14/15 and MASON 11 released
>>Date:  Tue, 4 Apr 2006 01:10:38 -0400
>> >The George Mason University Evolutionary Computation Laboratory
>>and
>> >Center for Social Complexity announce a new release of the ECJ
>> >evolutionary computation library and MASON multiagent simulation
>> >toolkit.  Both systems have seen major improvements and revisions
>> >since the last release approximately eight months ago.  The two
>> >systems are also being re-licensed under the Academic Free
>>License
>> >version 3.0.
>> >
>> >ECJ is being released in two versions: a backward-compatable
>>version
>> >  (14) and a non-backward-compatible version (15) with
>>significant
>> >framework revisions.  The dual release will (hopefully) give
>>people
>> >some extra time to convert to the new version.  ECJ 14/15 also
>>has
>> >numerous bug-fixes, speed improvements, and a new package
>>(spatial
>> >embedding).
>> >
>> >ECJ can be found here:
>> > http://cs.gmu.edu/~eclab/projects/ecj/
>> >
>> >ECJ CVS access is also available at SourceForge, but
>>sourceforge.net
>> >  has experienced a major hardware failure this past week and CVS
>> >access is not expected for several days at the earliest.
>> >
>> >
>> >MASON 11 is a major revision of our multiagent simulator.  It
>>sports
>> >  a new charting and tracking facility, several new problem
>>domains,
>> >  and a very large number of bug fixes and improvements.
>> >
>> >MASON can be found here:
>> > http://cs.gmu.edu/~eclab/projects/mason/
>> >
>> >Sean Luke