Re: [Spam:0006 SpamScore] [Swarm-Support] Help in poisson distribution and generator

[Paul Johnson]

Sorry, I did not read this mail until today.  It was in the Spam catcher.

Generators are not linked to distributions.  The distributions just need 
long streams of integers, and they are just as happy with one as another.

Now, if you are asking "I've used MT19937 (the best one) generator for 
one random stream, and I need another random stream to draw values from, 
what should I use next?" then I don't know.  Perhaps you could 
initialize another MT19937 generator with a different seed.

Maybe the experts will advise us.


address@hidden wrote:
> Hi folks,
>
> I saw in user guide of swarm the following table(about default 
> generators and distributions):
>
>         RandomBitDist   uses    C2TAUS1gen
> BernoulliDist   uses    C2TAUS2gen
> UniformIntegerDist      uses    TT403gen
> UniformUnsignedDist     uses    TT775gen
> ...
>
> ExponentialDist         uses    C2TAUS3gen
> GammaDist       uses    PSWBgen
>
>
>
> I would like to know what is the recommended generator to poissonDist. 
> Have anyone worked with this issue?
> Some tips would be great.
>
>
>
>
>
>
>
>
>
> --- On Tue 04/25, Ed Baskerville < address@hidden > wrote:
>
>     *From: *Ed Baskerville [mailto: address@hidden
>     *To: address@hidden
>     *Date: *Tue, 25 Apr 2006 02:05:53 -0700
>     *Subject: *[Swarm-Support] Proposal: Parallel Parameter Sweeps on
>     Grids
>
>     Hello Swarmers,
>
>     There has been talk before on this list about harnessing a network--
>     yes, a grid--of machines to do ABM parameter sweeps in parallel. (I
>     even built something for Apple's Xgrid a couple years back, only to
>     have them change the API just as I got distracted by other things.)
>     After some discussions with Rick Riolo, I'm trying to get going on a
>     general system for integrating ABM parameter sweeps with modern grid
>     systems--not just Xgrid, but Sun Grid Engine, etc.
>
>     This effort is only going to get off the ground if I can pay my rent
>     at the same time, so I'm planning to submit a proposal to Google as
>     part of their Summer of Code, wherein they fund current or (as in my
>     case) returning students to work on open-source software projects.
>
>     In order to put together the best proposal I can, and in order to
>     jumpstart community involvement, I've posted a draft outline on my
>     new software development blog in the hopes of getting feedback from
>     you all:
>
>     http://code.edbaskerville.com/2006/04/25/gridsweeper-proposal/
>
>     If you have any thoughts about this project, please leave them in the
>     comments section on the blog post. I hope this will be useful to a
>     lot of people.
>
>     Thanks in advance,
>     Ed
>
>     _______________________________________________
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>     address@hidden
>     http://www.swarm.org/mailman/listinfo/support
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--
Paul E. Johnson                       email: address@hidden
Professor, Political Science          http://pj.freefaculty.org
1541 Lilac Lane, Rm 504                              
University of Kansas                  Office: (785) 864-9086
Lawrence, Kansas 66044-3177           FAX: (785) 864-5700