Re: [Swarm-Support] JavaClassProxy error

[Paul Johnson]

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
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University of Kansas                  Office: (785) 864-9086
Lawrence, Kansas 66044-3177           FAX: (785) 864-5700