On Tue, 27 Jun 2006, roger bos wrote: > I want to get a 64-bit machine/OS system so I can put 16Gb of RAM in it. As > first I assumed that I would have to use the 64-bit version of R to make use > of the 16Gb of RAM, which would mean that I would use the Linux version of > R. But I have heard many posters say they run the 32-bit version of R on a > 64-bit machine/OS.
Yes, and the address-space limits on 32-bit applications still apply: it is done for speed. > So my questions, in Windows 64-bit, how much memory > would be available to the 32-bit R binary? Is it 4Gb (because its a 32-bit > application) or 16Gb (because its being run on a 64-bit OS)? 2Gb, as it is a rather limited 32-bit subsystem of a 64-bit OS. See the reference in the rw-FAQ Q2.9 or ?"Memory-limits". No 32-bit OS gives 4Gb address space to an application: most manage about 3Gb. See ?"Memory-limits" (which is tailored to the OS you are running). > [[alternative HTML version deleted]] > > ______________________________________________ > [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 Oh, PLEASE do and turn off HTML mail as we ask. -- 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://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
