Aha, thanks again.

Two notes:
1) serialize() didn't work over 2^31 until 3.0.1 (so it failed in my 3.0.0,
with a message that led me to believe that there was still a 32-bit limit
on length).
2) more puzzling: Using vectors over 2^31 (2^31+2 ?!) seems to be broken in
Rstudio, even though it works in R command-line. It looks like the
functions that monitor the workspace are not ready yet.

Anyway, the important thing is, this message:
    "Error: long vectors not supported yet: ../include/Rinlinefuns.h:100"
is from Rstudio, not R.

      --j



On Thu, Aug 8, 2013 at 10:38 AM, Simon Urbanek
<simon.urbanek@r-project.org>wrote:

>
> On Aug 8, 2013, at 10:58 AM, Jim Gattiker <j.gattiker@gmail.com> wrote:
>
> > Simon, I don't understand this either: It seems that R is commonly
> indexed
> > by 32-bit pointers, and mine certainly is on my Mac.
>
> Nope, since R 3.0.0 we use 64-bit binaries on Mac OS X:
>
> $ R
> R version 3.0.1 Patched (2013-07-15 r63328) -- "Good Sport"
> Copyright (C) 2013 The R Foundation for Statistical Computing
> Platform: x86_64-apple-darwin10.8.0 (64-bit)
> [...]
> > .Machine$sizeof.pointer
> [1] 8
>
>
> > I'll get the message
> > above also, as did the OP; that was the direct problem. How do I get "52
> > bit" R?
> >
>
> http://cran.r-project.org/bin/macosx/
>
> Cheers,
> Simon
>
>
> >    --j
> >
> > On Wed, Aug 7, 2013 at 7:42 PM, Hao Yu <hyu@stats.uwo.ca> wrote:
> >
> >> ....
> >> However, on a win7 64 with R 3.0.1 (16GB ram), I got
> >>> n=6e8
> >>> x=integer(n)
> >>> a=serialize(x,NULL)
> >> Error: long vectors not supported yet: ../include/Rinlinefuns.h:100
> >>
> >
> >       [[alternative HTML version deleted]]
> >
> > _______________________________________________
> > R-sig-hpc mailing list
> > R-sig-hpc@r-project.org
> > https://stat.ethz.ch/mailman/listinfo/r-sig-hpc
> >
> >
>
>

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