The Pemtium D 940 supports EMT64 according to
http://www.pcstats.com/articleview.cfm?articleID=1988 (I googled it).
That is the key: EMT64 is Intel's name for x86_64 and so your box should
run x86_64 Linux which I believe Debian/Ubuntu refer to as 'amd64'
(which
understandably Intel does not favour and GNU configure does not use on
Linux).
R compiles readily on x86_64 Linux (it is our main development platform)
so in so far as there is 'the 64 bit linux version of R' (not really),
it
will run. More precisely you should be able to compile R from the sources
and also install an amd64 Ubuntu package for R.
On Sun, 3 Aug 2008, Tom La Bone wrote:
>
> After doing some reading about 64-bit systems and software I am still
> somewhat uncertain about some things. I have a Dell Dimension XPS 400 with
a
> dual core Intel Pentium D 940 (3.2 GHz) and 4 Gb of memory. I currently
dual
> boot the system with XP Professional and Ubuntu 8.04 (32 bit). If I simply
> install Ubuntu 8.04 (64 bit) on this system will it run the 64 bit linux
> version of R? I would appreciate any advice you might be willing to offer
on
> this.
>
> Tom
--
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