Someone else suggested the snow package, but I don't think it is available for windows.  I have been able to get the nws package to work on a duel core machine using windows and it did speed up my tests (and was fairly straight forward to use).

________________________________

From: r-help-bounces@r-project.org on behalf of Rees, David 
Sent: Fri 1/11/2008 7:28 AM
To: r-help@r-project.org
Subject: [R] Is R on Windows multi-threaded



Hi,

A previous thread suggests that R on Windows is multi-threaded

http://tolstoy.newcastle.edu.au/R/help/03b/6946.html

When I'm running R 2.5.1 on a dual core pc I get Rgui.exe uses up to 50%
of the available cpu and the rest is not used. i.e. it only uses one
cpu. I'm soon going to get a nice shiny new 8 cpu machine which it would
be very nice to fully utilize.

Is there any way to get R to use all the cpus - should this happen
automatically?

Many thanks,

Regards,
David


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