[R] R on Linux 64-bit

[Peter Dalgaard]

Maura E Monville wrote:
> I have been running R on my Linux/SuSE for over 2 months. I know it
> works.
> Some time ago it aborted as it ran out of memory in spite of having
> 2GB RAM + swap. Someone in this forum asked me whether I had compiled
> with the 64-bit libraries or the 32-bit since my computer is a 64-bit
> architecture.
> Therefore my question is about the "configure" procedure I have
> downloaded.
> Which parameters/options should I use with this configuration file in
> order to get a 64-bit executable R ?
> Last Friday my computer X server was messed up presumably by the
> on-line installation of upgrade patches. I am reinstalling all the
> applications after reinstalling the O.S.

Just do what I told you to:

> .Machine$sizeof.pointer
[1] 8

If you get 4 rather than 8, then you have a 32bit install. If you are
running a 64 bit SUSE, the nonobvious issue is how to set up  for 32
bits, so I'd be surprised if that is what you have.

Unless you have considerably more than 2 GB of swap, then you are as
likely to run out of memory in 64 bits as you are in 32 bits. More
so,actually, because objects are bigger in 64 bits.

    -p
>
> Thank you so much,
> Maura
>
> On Jan 21, 2008 8:29 AM, Peter Dalgaard <P.Dalgaard at biostat.ku.dk
> <mailto:P.Dalgaard at biostat.ku.dk>> wrote:
>
>     Maura E Monville wrote:
>     > I am downloading the latest R source code R-2.6.1.tar.gz
>     >
>     > I am installing ion a 64-bit machine.
>     > Is the configuration script the proper one for 64-bin
>     installation  ?   I
>     > mean the compiler and
>     > linker options ..?
>     >
>     > Thanks you,
>     > Maura
>     >
>     >
>     The short answer is yes.
>
>     The longer answer is that you didn't tell us which "Linux" you are
>     talking about, but we have no reports on distributions where it
>     doesn't
>     work. You can easily check that .Machine$sizeof.pointer is 8 on a
>     64 bit
>     build.
>
>
>     --
>       O__  ---- Peter Dalgaard             Øster Farimagsgade 5, Entr.B
>      c/ /'_ --- Dept. of Biostatistics     PO Box 2099, 1014 Cph. K
>      (*) \(*) -- University of Copenhagen   Denmark          Ph:
>      (+45) 35327918
>     ~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk
>     <mailto:p.dalgaard at biostat.ku.dk>)                  FAX: (+45)
>     35327907
>
>
>
>
>
> -- 
> Maura E.M 


-- 
   O__  ---- Peter Dalgaard             Øster Farimagsgade 5, Entr.B
  c/ /'_ --- Dept. of Biostatistics     PO Box 2099, 1014 Cph. K
 (*) \(*) -- University of Copenhagen   Denmark          Ph:  (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk)                  FAX: (+45) 35327907