Don't rush to buy new hardware yet (other than perhaps more RAM for your existing desktop). First of all you should make sure that your R code can't be made any faster. (I've seen cases where careful re-writes increased speed by a factor of 10 or more.) There are some rules (such as pre-allocate enough memory for vectors/lists, use matrices instead of data frames etc) and tools (?Rprof, ?Sys.time) that can help a lot. Check the manuals and the archives, for example http://article.gmane.org/gmane.comp.lang.r.general/48800
> -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Robert McFadden > Sent: Tuesday, June 19, 2007 4:51 PM > To: [email protected] > Subject: [R] Speed up R > > Dear R Users, > I hope that there is someone who has an experience with a > problem that I > describe below and will help me. > I must buy new desktop computer and I'm wondering which > processor to choose > if my only aim is to speed up R. I would like to reduce a > simulation time - > sometimes it takes days. I consider buying one of them (I'm > working under > Win XP 32 bit): > 1. Intel Core2 Duo E6700 2.67 GHz > 2. Dual-Core Intel Xeon processor 3070 - 2,66 GHz > 3. AMD Athlon 64 X2 6000+ > Or simple Pentium 4? > > I'm very confused because I'm not sure whether R takes > advantage dual-core > or not. If not, probably Athlon would be better, wouldn't be? > I would appreciate any help. > Rob > > ______________________________________________ > [email protected] mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
