Re: [R] Dual Core vs Quad Core

From: Andrew Perrin <>
Date: Mon, 17 Dec 2007 20:13:16 -0500 (EST)

On Mon, 17 Dec 2007, Kitty Lee wrote:

> Dear R-users,
> I use R to run spatial stuff and it takes up a lot of ram. Runs can take hours or days. I am thinking of getting a new desktop. Can R take advantage of the dual-core system?
> I have a dual-core computer at work. But it seems that right now R is using only one processor.
> The new computers feature quad core with 3GB of RAM. Can R take advantage of the 4 chips? Or am I better off getting a dual core with faster processing speed per chip?
> Thanks! Any advice would be really appreciated!
> K.

If I have my information right, R will use dual- or quad-cores if it's doing two (or four) things at once. The second core will help a little bit insofar as whatever else your machine is doing won't interfere with the one core on which it's running, but generally things that take a single thread will remain on a single core.

As for RAM, if you're doing memory-bound work you should certainly be using a 64-bit machine and OS so you can utilize the larger memory space.

Andrew J Perrin - andrew_perrin (at) - Associate Professor of Sociology; Book Review Editor, _Social Forces_ University of North Carolina - CB#3210, Chapel Hill, NC 27599-3210 USA mailing list PLEASE do read the posting guide and provide commented, minimal, self-contained, reproducible code. Received on Tue 18 Dec 2007 - 01:23:00 GMT

Archive maintained by Robert King, hosted by the discipline of statistics at the University of Newcastle, Australia.
Archive generated by hypermail 2.2.0, at Tue 18 Dec 2007 - 04:30:20 GMT.

Mailing list information is available at Please read the posting guide before posting to the list.