Re: [R] Dual Core vs Quad Core

2007-12-18 Thread S Ellison
Hiding in the windows faq is the observation that R's computation is single-threaded, and so it cannot use more than one CPU. So multi-core should make no difference other than allowing R to run with less interruption from other tasks. That is often a significant advantage, though. Andrew

[R] Dual Core vs Quad Core

2007-12-17 Thread Kitty Lee
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

Re: [R] Dual Core vs Quad Core

2007-12-17 Thread Andrew Perrin
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

Re: [R] Dual Core vs Quad Core

2007-12-17 Thread Saeed Abu Nimeh
I ran a bayesian simulation sometime ago and it took me 1 week to finish on a debian box (Dell PE 2850 Dual Intel [EMAIL PROTECTED] 6GB). I think it depends on the setting of the experiment and whether the code can be parallelized. Simon Blomberg wrote: I've been running R on a quad-core using