Re: [Rd] AIX testers needed

From: Jason Barnhart <jasoncbarnhart_at_msn.com>
Date: Fri, 18 May 2007 09:33:11 -0700


Per the request to test the latest tarball referenced below, I have built R on AIX 5.3. There is a memory issue, please see 3) below.

  1. Build with --enable-BLAS-shlib option. Builds and passes "make check".
  2. GNU libiconv was installed; R configured *without* the --without- iconv option. Builds and passes "make check."
  3. Memory issue:
  4. Although the server possesses 8GB of RAM and system("ulimit") returns "unlimited" as its value, R does not "have enough memory."
  5. This code works on R-2.4.0 on WinXP with 2GB of RAM, but fails on the AIX build. Example code:
        > xx <- matrix(rep(1e+10,1e7),nrow=1e4,ncol=1e3)
        > tmp.df <- as.data.frame(cbind(xx,xx,xx))
        Error: cannot allocate vector of size 228.9 Mb
        > gc()
                   used (Mb) gc trigger  (Mb) max used  (Mb)
        Ncells   233035  6.3     467875  12.5   350000   9.4
        Vcells 10104141 77.1   31854441 243.1 30104289 229.7

    4) Used gcc-4.1.2; I have not tried the native compiler.

Questions:

  1. Are there suggestions on how to diagnose and resolve the memory issue? I'm still building my tool chain and I am in the midst of installing gdb.
  2. Regarding the build process itself, is there more documentation or results that I should forward?

Thanks,
-jason

> version _

platform       powerpc-ibm-aix5.3.0.0
arch           powerpc
os             aix5.3.0.0
system         powerpc, aix5.3.0.0
status         RC
major          2
minor          5.0
year           2007
month          04
day            22
svn rev        41276
language       R

version.string R version 2.5.0 RC (2007-04-22 r41276)

> With much thanks to Ei-ji Nakama, R 2.5.0 alpha supports building on
> AIX
> (at least AIX 5.2 on one system).

>

> Would anyone able to test this please get the latest tarball from
>

> http://cran.r-project.org/src/base-prerelease/R-latest.tar.gz
>

> and try installing (after reading the AIX notes in R-admin.html
> section
> C.9).
>

> In particular it would be very helpful to know if
>

> 1) --enable-BLAS-shlib works (it is the default everywhere except
> AIX and
> Darwin)
>

> 2) if people succeed in installing GNU libiconv and building without
> needing --without-iconv.
>

> I am Cc:ing all the people I tracked down who reported attempted AIX
> installations in 2006 in the hope that they may still be interested.
>

> Please report success and any hints or problems in the R-devel list.
>

> --
> Brian D. Ripley, ripley@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
>
> ______________________________________________
> R-devel_at_r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-devel
>

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https://stat.ethz.ch/mailman/listinfo/r-devel Received on Fri 18 May 2007 - 16:35:29 GMT

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