Re: [Swarm-Support] Optimisation of Simulations

[K a]

Hi,

Paul, what you suggested there has improved the performation of my model 
drastically! Thanks very much!

A further question about performance. It seems like, now, what's dragging the 
performance is updating of the graphs (including EZGraph and Graph). This may 
be because I'm giving it an agent list as such to plot the average:

graph.createAverageSequence$withFeedFrom$andSelector("Average", agentList, sel);
...
graph.step();
...

I was wondering if there's a similar way which can improve the speed when 
plotting these.

Any help would be great. Thanks!
Kel


> 
> Greetings from Sunny Italy, Where SwarmFest 2005 is in session.  It 
> is the Funnest Meeting Ever.
> 
> I don't know about the crash you are seeing, but instead of fixing 
> it, I suggest you just redesign.
> 
> I THINK the slowdown you are noticing is recognized and can be 
> addressed in other ways. The slowdown results from the fact that 
> Swarm does not know what type of agents you have.  So one approach 
> is to change your model to use the homogeneous nature of the 
> collection to accelerate processing.
> 
> http://www.ku.edu/~pauljohn/SwarmFaq/WorkingExampleCode/java/ActionForEachHomogeneous.txt
> 
> Also consult here:
> 
> http://www.ku.edu/~pauljohn/SwarmFaq/Memos/
> 
> See files "MarcusCreateActions..."
> 
> Honestly, it might be the easiest thing to just keep your 
> collection away from the schedule altogether.  Write a method in 
> ModelSwarm that loops over the agents.  Then put that method on the 
> schedule.  This is generally much much faster than any variant of 
> createActionForEach.
> 
> pj
> 
> K a wrote:
> > Hello All,
> >
> > -Swarm2.2, Java, Windows
> > Having built a model and run, I get the following error:
> >
> > ==================================================
> > *** event raised for error: InvalidArgument
> > *** function: _i_Object_s__doesNotRecognize_(), file: 
> > /src/swarm/src/defobj/DefObject.m, line: 825
> > JavaClassProxy does not recognize interact
> > *** execution terminating due to error
> > /src/swarm/src/defobj/Symbol.m:187 -[Error(c) _raiseEvent:]
> > ==================================================
> >
> > Please could anyone advise on what is going on with this error?
> >
> > Note: I only get this error when, in my ModelSwarm class, I build 
> > action messages sent individually to every object in a List, 
> > using createActionTo$message. When I use 
> > createActionForEach$message on the collection, it seems to work.
> >
> > The reason why I'm trying with createActionTo$message is because 
> > I think my simulation runs considerably faster this way. Using 
> > the ForEach initialisation seems to be slower.
> >
> > Any advice welcome. Thanks a lot.
> > Kel
> >
> >
> 
> 
> -- Paul E. Johnson                       email: address@hidden
> Dept. of Political Science            http://lark.cc.ku.edu/~pauljohn
> 1541 Lilac Lane, Rm 504
> University of Kansas                  Office: (785) 864-9086
> Lawrence, Kansas 66044-3177           FAX: (785) 864-5700
> _______________________________________________
> Support mailing list
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