On Tue, 23 Mar 2004, Paul Y. Peng wrote: > I recently ordered a computer which is intended to run both WindowsXP > and Linux (of course both versions of R as well). Before placing the > order, I discussed it with our system managers. They highly recommanded > a system with one P4 CPU with Intel's so called "hyper-threading" > technology over a system with two CPU's, and they claimed that both OS's > can take benefits from the "hyper-threading" technology. I haven't got > the machine yet and don't know how fast it is. At least this is another > option available.
I do have such a machine as my home machine, so I already have experience under Fedora Core 1 and Windows XP. The gain over a single processor is small compared to a dual processor (at best 1.2x in my experience), and many magazine tests have recommended turning hyperthreading off. I know that a dual Athlon 2600 (my office machine) compiles R about twice as fast as a Pentium 2.6HT, for example. -- Brian D. Ripley, [EMAIL PROTECTED] 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 ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
