Message-ID: <Pine.LNX.4.61.0512141445270.2917@gannet.stats>
Date: 2005-12-14T14:49:55Z
From: Brian Ripley
Subject: R for Windows server
In-Reply-To: <20051214143425.11311.qmail@web31314.mail.mud.yahoo.com>
Is hyperthreading on? In that case the maximum is 50% ....
Are there two processors? In that case the maximum is 25% ....
On Wed, 14 Dec 2005, Marco Geraci wrote:
> I need to run a burdensome simulation. I'm using a Dell PowerEdge 2850,
> 3.8 Ghz CPU, 2 Gb RAM, Windows server 2003, 32 bit. The task manager
> indicates that Rgui.exe is using 25% of the CPU speed.
Don't believe the task manager, especially on a machine with
hyperthreading.
> There is no other
> process that is slowing down R.
> Does anyone know if it's a limitation of R? If so, can I set up the
> program for the CPU usage like I do for the memory usage? Is there a
> version of R for servers?
No, R runs at close to 100% of possible on properly configured Windows
machines.
--
Brian D. Ripley, ripley at stats.ox.ac.uk
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UK Fax: +44 1865 272595