RE: [Swarm-Modelling] True concurrency?

[North, Michael]

Marcus:

Good point!  As you correctly observe, Repast requires a true
shared-memory multiprocessor or automatic kernel support for migration
of threads.  True shared-memory multiprocessors are common, at least for
relatively small numbers of CPUS.  Automatic kernel support for
migration of threads doesn't really exist.

Mike

> -----Original Message-----
> From: address@hidden [mailto:address@hidden
On
> Behalf Of Marcus G. Daniels
> Sent: Wednesday, August 31, 2005 2:15 PM
> To: Swarm Modelling
> Subject: Re: [Swarm-Modelling] True concurrency?
> 
> North, Michael wrote:
> >
> > If you have multiple CPUs available then the tasks will execute in
> > true parallel form on multiple CPUs.  The Repast scheduler uses
thread
> > pooling to make this efficient.
> >
> Thread polling still means you need a true shared-memory
multiprocessor,
> and not an ordinary cluster..  (Or automatic kernel support for
> migration of threads over a Infiniband cluster interconnect or similar
> -- which unfortunately doesn't really exist.)
> 
> [which is not to diminish the feature, just so people don't jump to
> conclusions!]
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