[R] Use of processor by R 32bit on a 64bit machine

From: Joris Meys <jorismeys_at_gmail.com>
Date: Tue, 29 Jun 2010 15:30:28 +0200

Dear all,

I've recently purchased a new 64bit system with an intel i7 quadcore processor. As I understood (maybe wrongly) that to date the 32bit version of R is more stable than the 64bit, I installed the 32bit version and am happily using it ever since. Now I'm running a whole lot of models, which goes smoothly, and I thought out of curiosity to check how much processor I'm using. I would have thought I used 25% (being one core), as on my old dual core R uses 50% of the total processor capacity. Funny, it turns out that R is currently using only 12-13% of my cpu, which is about half of what I expected.

Did I miss something somewhere? Should I change some settings? I'm running on a Windows 7 enterprise. I looked around already, but I have the feeling I overlooked something.


R version 2.10.1 (2009-12-14)

[1] LC_COLLATE=English_United States.1252 LC_CTYPE=English_United
States.1252 LC_MONETARY=English_United States.1252
[4] LC_NUMERIC=C LC_TIME=English_United

attached base packages:
[1] grDevices datasets splines graphics stats tcltk utils

   methods base

other attached packages:
[1] svSocket_0.9-48 TinnR_1.0.3 R2HTML_2.0.0 Hmisc_3.7-0

loaded via a namespace (and not attached):
[1] cluster_1.12.3 grid_2.10.1 lattice_0.18-3 svMisc_0.9-57 tools_2.10.1

Joris Meys
Statistical consultant

Ghent University
Faculty of Bioscience Engineering
Department of Applied mathematics, biometrics and process control

tel : +32 9 264 59 87
Disclaimer : http://helpdesk.ugent.be/e-maildisclaimer.php

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Received on Tue 29 Jun 2010 - 13:32:31 GMT

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