From P.Dalgaard at biostat.ku.dk  Thu Jul  3 14:08:11 2008
From: P.Dalgaard at biostat.ku.dk (Peter Dalgaard)
Date: Thu, 03 Jul 2008 14:08:11 +0200
Subject: [Rd] --enable-BLAS-shlib conflict with --with-lapack
	in	configure?
In-Reply-To: <s3sod5fjj1b.fsf@slagelg.uio.no>
References: <s3s7ic3l4y5.fsf@slagelg.uio.no>	<alpine.LFD.1.10.0807031043320.11148@gannet.stats.ox.ac.uk>
	<s3sod5fjj1b.fsf@slagelg.uio.no>
Message-ID: <486CC12B.9030404@biostat.ku.dk>

Bj?rn-Helge Mevik wrote:
>> If you are concerned about performance you definitely do not want to use
>> shared R, not a shared BLAS.
>>     
>
> I'm sorry, I don't quite follow you here.  Do you mean not create a shared R
> and not create a shared BLAS, or was there a "not" too many?
>   
"Nor", I think. (One of a set of confusing typos. Others include "not"
instead of "now" or "note". Note that I would ever make such silly
mistakes.)

As for the subject matter, you _can_ actually create such at thing as an
optimized, shared BLAS/Lapack, and it is probably faster than an
unoptimized, shared one (well, at least you could create them when I
played with this some years ago). It's just that people think it is a
bit silly, so they are not doing it for you, and as I recall it, you
also need to tinker a bit more than usual with the build process of the
libraries.

-- 
   O__  ---- Peter Dalgaard             ?ster Farimagsgade 5, Entr.B
  c/ /'_ --- Dept. of Biostatistics     PO Box 2099, 1014 Cph. K
 (*) \(*) -- University of Copenhagen   Denmark      Ph:  (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk)              FAX: (+45) 35327907



[Rd] --enable-BLAS-shlib conflict with --with-lapack in configure?
Peter Dalgaard