From: cookedm+news@physics.mcmaster.ca (David M. Cooke)
To: caml-list@inria.fr
Subject: Re: Regarding SMP computing
Date: Wed, 27 Sep 2006 17:10:24 -0400 [thread overview]
Message-ID: <qnkmz8l10e7.fsf@arbutus.physics.mcmaster.ca> (raw)
In-Reply-To: <87lko7g1mm.fsf@wanadoo.fr>
Yoann Padioleau <Yoann.Padioleau@emn.fr> writes:
> Richard Jones <rich@annexia.org> writes:
>
>> On Mon, Sep 25, 2006 at 08:13:50AM -0400, Jacques Carette wrote:
>>> Over on Haskell-cafe, Simon Peyton-Jones says:
>>> "GHC 6.6 (release candidate available) supports parallel execution on
>>> SMP machines.
>>>
>>> Garbage collection is not parallelised yet, something we plan to fix
>>> this autumn."
>>>
>>> A bit of competition is a good thing, isn't it?
>>
>> Can someone explain how/if this is better than using MPI for
>> parallelism? The reason I ask is that we are starting to use MPI for
>> real on SMP machines to process our larger datasets.
>
> I guess that with a working shared-memory SMP support, you
> don't pay the communication cost you have with MPI.
Unless, of course, your MPI implementation uses shared memory on SMP systems.
--
|>|\/|<
/--------------------------------------------------------------------------\
|David M. Cooke
|cookedm(at)physics(dot)mcmaster(dot)ca
next prev parent reply other threads:[~2006-09-27 21:10 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-09-25 12:13 Jacques Carette
2006-09-25 13:40 ` [Caml-list] " skaller
2006-09-25 19:41 ` Richard Jones
2006-09-25 19:57 ` Yoann Padioleau
2006-09-27 21:10 ` David M. Cooke [this message]
2006-09-26 11:57 ` Damien Doligez
2006-09-26 14:37 ` Markus Mottl
2006-09-26 14:52 ` Christophe TROESTLER
2006-09-26 15:46 ` Markus Mottl
2006-09-26 15:01 ` Gerd Stolpmann
2006-09-26 18:56 ` Richard Jones
2006-09-27 12:14 ` Richard Jones
2006-09-27 16:05 ` Richard Jones
2006-09-27 17:35 ` [Caml-list] out-of-heap data structures [was: Regarding SMP computing] Xavier Leroy
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