Re: [Caml-list] Designing a (functional) multi-agent simulation -- illusion of paralellism

[Arnaud Spiwack <aspiwack@lix.polytechnique.fr>]

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I don't quite understand the specifics of your needs. But the typical
starting point is the comonadic structure of the grid (see
http://blog.sigfpe.com/2006/12/evaluating-cellular-automata-is.html ) where
you basically iterate over the resulting cells rather than the existing
agents. I don't know if your example can fit in this framework.


On 9 June 2014 17:56, Anthony Tavener <anthony.tavener@gmail.com> wrote:

> To implement something like the bidding you're thinking of (or any
> finer-grained competition) you might need to have several sub-iterations to
> each timestep... or each timestep is smaller and not sufficient for
> completing an "eat" action. Think of pipelined processors, perhaps, as some
> inspiration. ;)
>
> For an example of sub-iterations within each timestep: you have claims,
> then resolve conflicting claims, then do all resulting actions. In this
> case, "losers" of a competition probably wasted their action. If you still
> want them to be able to at least do a simpler action or start another
> claim, this is where you might want finer-grained steps (and actions).
>
>
> On Mon, Jun 9, 2014 at 8:24 AM, O Frolovs <
> ollie.frolovs.2012@my.bristol.ac.uk> wrote:
>
>> Hello
>>
>> I am trying to write a predator-prey simulator and I have hit the wall
>> with functional design. I would appreciate any help or pointers to relevant
>> literature.
>>
>> The simulator is that of a world populated with fish and sharks. It is a
>> discrete-time multi-agent simulation and what I am struggling to think
>> about is how to implement the illusion of parallelism in simulation. Since
>> the problem is not specifically with OCaml (but the simulator is in OCaml),
>> I have kept this email short and put all the details and the code on GitHub:
>>
>> "On the subject of Toroidal Planets, Sharks and Fish."
>> https://gist.github.com/olliefr/fb26ca3a7645dae7e203
>>
>> It's only a hobby project, but it is of some interest to me, so I would
>> really appreciate any advice.
>>
>> Best regards,
>>
>> Ollie
>>
>
>

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