From adik-rdevel at ilovebacon.org  Wed Mar  9 23:34:23 2011
From: adik-rdevel at ilovebacon.org (Adam D. I. Kramer)
Date: Wed, 9 Mar 2011 14:34:23 -0800 (PST)
Subject: [Rd] R and ATLAS and distributing across boxes
Message-ID: <alpine.DEB.2.00.1103091409290.1699@parser.ilovebacon.org>

Hi,

 	If I have a cluster of heterogenous machines, each with their own
self-optimized ATLAS, do I need to compile R on each machine to tell it to
take advantage of the local ATLAS? Or is it sufficient to compile R once
with the appropriate --with-blas and --with-lapack flags, and then trust
that, once installed on a certain box, R will look in the right place and
find and use the local library? Or will I need to recompile R on each box?

 	Googling around has shown me how to have R use ATLAS instead of
native BLAS, but none of them note whether changing the BLAS library out
from under an R binary will change the code that R executes.

Thanks in advance,
Adam D. I. Kramer



[Rd] R and ATLAS and distributing across boxes
Adam D. I. Kramer