[R] Parallel Functions on AIX

Liaw, Andy andy_liaw at merck.com
Thu Jul 29 06:02:26 CEST 2004

> From: Brian Ripley
> The first thing to ascertain is that R will actually build on such a 
> machine -- there have been a lot of reports of failure on AIX, and no 
> recent reports of success.

According to our AIX sysadmin, R-1.9.1 actually compiles a lot more cleanly
than R-1.8.1 and prior.  I take it the recent reports of difficulties has to
do with (possibly outdated) GCC.  We have no problem with xlc/xlf.

The trouble we're having is getting R to link against readline in 64-bit.
Haven't figure out how to do that yet.  Life w/o readline is rather


> If it does, R itself is single-threaded (but can make use of
> multi-threaded BLAS)  but packages such as Rmpi, snow, 
> RScaLAPACK provide 
> parallel facilities (and are in the FAQ).
> On Wed, 28 Jul 2004, Liao, Kexiao wrote:
> > Dear R Development Team,
> You actually wrote to R-help!
> >    Does the latest version R-1.9.1 provide parallel 
> functions if R is
> > running on Multiple CPUs Unix platform (IBM AIX e-server)?
> -- 
> 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
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