[Rd] Does anybody successfully built latest R on AIX 5.3?

Stefan Theussl stefan.theussl at wu.ac.at
Wed Jun 8 14:39:40 CEST 2011

On 06/08/2011 02:02 PM, XiaoboGu wrote:
> Hi Stefan,
> 	Thanks for replying!
> 	I have just managed to installed gcc on AIX this evening, and will try to install gfortran tomorrow, there are a few more questions
> 1. Are you running R 2.13.0
Currently we are running 2.12.0 (works with both GNU and IBM compilers). 
I was not able to compile 2.13 with GNU compilers yet, IBM compilers 
work though (are preferable anyway, since performance is higher):

R version 2.13.0 Patched (2011-06-08 r56086)
Copyright (C) 2011 The R Foundation for Statistical Computing
ISBN 3-900051-07-0
Platform: powerpc-ibm-aix6.1.0.0 (64-bit)

R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.

R is a collaborative project with many contributors.
Type 'contributors()' for more information and
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Type 'demo()' for some demos, 'help()' for on-line help, or
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Type 'q()' to quit R.

 > sessionInfo()
R version 2.13.0 Patched (2011-06-08 r56086)
Platform: powerpc-ibm-aix6.1.0.0 (64-bit)


attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base

However recommended package Matrix gives an error upon loading.
> 2. Can you share all the environment variables we have to set before running the configure script.
See the manual and 

You may download this script (and patches), modify the paths 
accordingly, run it (e.g., ./install_R_AIX.sh --ibm for 2.13) and R 
should build fine.
There are a couple of notes and patches provided in the R/AIX repository 
on R-Forge (e.g., how to get IBM BLAS linked etc., missing third-party 
libs installed, etc.).

> 3. Can you share the full command line of configure script.
see above.
> 4. According to your experience, is there a huge performance lift compared to X86 CPUS, what's the clock speed of you Power CPU?
No there isn't. One can use the IBM BLAS library (ESSL), then one will 
observe a significant speedup for linear algebra tasks. Note however, 
ESSL does not incorporate the full BLAS specification (thus the patch). 
In general, R  runs slower on the power architecture than on x86.
We have a Power 6 8core CPU @ 3.5 GHz. Actually, we use our system 
mainly for memory-demanding applications (<=128GB RAM).

> Regards,
> Xiaobo Gu
>> -----Original Message-----
>> From: Stefan Theussl [mailto:stefan.theussl at wu.ac.at]
>> Sent: Wednesday, June 08, 2011 7:07 PM
>> To: guxiaobo1982 at gmail.com
>> Cc: r-devel at r-project.org
>> Subject: Re: [Rd] Does anybody successfully built latest R on AIX 5.3?
>> We successfully built R on AIX 6.1 but the following instructions should also work for 5.3.
>> We mainly used the software from OSS4AIX but also from the "AIX Toolbox for Linux
>> Applications" obtainable directly from IBM. Attached you'll find our list of installed rpms.
>> This and the instructions provided in the "R Installation and Administration" manual should
>> be all you need to build R on AIX systems.
>> hth,
>> st

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