[R] Memory available to 32-bit R app on 64-bit machine

From: roger bos <roger.bos_at_gmail.com>
Date: Tue 27 Jun 2006 - 22:23:43 EST


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. 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)?

I know most people will suggest to me to ditch windoze and goto Linux, but my company IT department has a big problem with that (and no, they don't want to compile the 64-bit version in Windows, thanks for asking).

TIA for any help. Roger

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