[R] Desperatly seeking Parallel R simulation with Windows XP

Rainer M Krug r.m.krug at gmail.com
Tue Sep 30 10:55:38 CEST 2008

On Tue, Sep 30, 2008 at 10:18 AM, quant15
<alexandre.bombal at bnpparibas.com> wrote:
> Hello R experts,
> I've been searching for weeks a way to use my quad core xeon to increase
> speed of a very-very computer-intensive simulation I must do for my works.
> It seems that most purpose-made packages for R : Snow, Rmpi, snowfall,...
> are designed for Linux based OS. I do not have access to Linux due to
> professionnal reasons ... so I must work with windows XP.
> Do somebody know a way to unleash the calculation power of all four cores
> under windows XP ?

Just tried snow under Windows 2000 and it works. Just follow the
examples on http://www.sfu.ca/~sblay/R/snow.html
but create a cluster as follow:

cl <- makeSOCKcluster(c("localhost", "localhost", "localhost", "localhost"))

and you have a cluster of all your four cores.

As I don't have a dual or quadcore running windows, I can't confirm
that it is actually using all cores (it does under Linux), but the
cluster is created.

If you have further questions, just ask - I am learning tio use snow as well.


> Thanks for your help !!
> Quant15
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Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation
Biology, UCT), Dipl. Phys. (Germany)

Centre of Excellence for Invasion Biology
Faculty of Science
Natural Sciences Building
Private Bag X1
University of Stellenbosch
Matieland 7602
South Africa

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