GPH: RE: Concurrency and Haskell

[paul@theV.net]

Speaking of GpH, I wonder how is GdH coming along? It seems
that the installation instruction on http://www.cee.hw.ac.uk/~dsg/gdh/
is still incomplete...

As far as I know, Mosix has nothing to do with PVM, so am I
right to say that GpH still needs PVM even you use it on a
Mosix cluster? Then what will Mosix provide when you can have
a PVM cluster without Mosix running the same thing?

Regards,
.paul.

On Tue, Aug 20, 2002 at 12:09:28PM +0100, Phil Trinder wrote:
> Murray,
> 
> There are several parallel Haskell implementations: a survey of them has just 
> appeared in Journal of Func. Prog Vols 4&5 (July & Sept 2002). Implementations 
> are available for
> o Eden http://www.mathematik.uni-marburg.de/inf/eden/
> o GpH  http://www.cee.hw.ac.uk/~dsg/gph/
> 
> My group works on Glasgow parallel Haskell (GpH) which extends Haskell 98 with 
> a parallel composition combinator. As Simon said the main implemntation,
> GUM, buys portability using the relatively slow PVM communications library. 
> This doesn't matter so much on distributed memory machines, and we've recently 
> achieved some quite respectable results SunServer shared-memory machines.
> 
> Simon Marlowe developed an alternative SMP implementation of GpH a couple of 
> years ago that may be more suitable for a Mosix platform, but I'm not sure of 
> the status of that implementation now.
> 
> Phil
> 
> On Mon, 19 Aug 2002 18:04:44 +0100 Simon Peyton-Jones <simonpj@microsoft.com> 
> wrote:
> 
> > Hi Murray
> > 
> > I'm catching up with my email backlog, but I didn't see a reply to your
> > message, so I thought I'd reply.  The parallel-Haskell crew are at
> > 	http://www.cee.hw.ac.uk/~dsg/gph/
> > There's a mailing list that I'm ccing.
> > 
> > GHC can be built to run on a shared-memory multiprocessor, but we have
> > not built and tested that for some time.  
> 
> Untrue - both Eden and GpH are currently used on SunServer SMPs.
> 
> > GPH is aimed more at
> > distributed-memory machines, and has quite a bit more code layered on
> > top of GHC.  Details on the GPH page above.  
> > 
> > Let me know if I can help.  It'd be great to get some more
> > parallel-Haskell stuff going.
> > 
> > Simon
> > 
> > | A group of us at Brooklyn College (City University of New 
> > | York) are in the latter stages of setting up a Mosix cluster 
> > | that we would like to use for research on, among other 
> > | things, parallel execution of Haskell code and run-time 
> > | optimization of both automatic and programmed parallelization.
> > | 
> > | I would greatly appreciate hearing from anyone who can 
> > | provide advice on 
> > | an appropriate bibliography on the language implementation and past 
> > | work in this area (other than the code in the Haskell compilers and 
> > | libraries, of course), approaches, ongoing work, etc. 
> > | 
> > | Also, I would be most interested in hearing from anyone 
> > | interested in joining our effort (no problems with remote 
> > | access to the cluster by way of SSH), or making arrangements 
> > | for cooperation in research in this area, although, of 
> > | course, access to our equipment will be subject to approval 
> > | from "higher authorities" (however, note that I really don't 
> > | expect difficulty here, since our administration has already 
> > | shown considerable interest in supporting the project).
> > | 
> > | Replies to the list will be read, but those who wish may mail 
> > | me directly at mgross@dorsai.org. 
> > | 
> > | Thanks in advance for any replies. 
> > | 
> > | Murray Gross
> > | Adj. Lecturer, Brooklyn College, 
> > | City University of New York 
> > | 
> > | 
> > | 
> > | _______________________________________________
> > | Haskell mailing list
> > | Haskell@haskell.org http://www.haskell.org/mailman/listinfo/haskell
> > | 
> > 
> 
> --------------------------------------------------
> Phil Trinder
> Department of Computing and Electrical Engineering
> Heriot Watt University
> Riccarton
> Edinburgh, EH14 4AS
> 
> E-mail: trinder@cee.hw.ac.uk
> Teleph: +44 (0)131 451 3435
> Depart: +44 (0)131 451 3328
> Fasmly: +44 (0)131 451 3327
> Intrnt: http://www.cee.hw.ac.uk/~trinder
> 
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