From p.dalgaard at biostat.ku.dk  Thu Feb 26 15:44:16 2004
From: p.dalgaard at biostat.ku.dk (Peter Dalgaard)
Date: Thu Feb 26 15:48:17 2004
Subject: [Rd] ATLAS threaded 64 bit (Opteron) - need *.so?
In-Reply-To: <6r7jyax7nh.fsf@bates4.stat.wisc.edu>
References: <16445.47460.107721.166477@gargle.gargle.HOWL>
	<x27jyaf747.fsf@biostat.ku.dk> <6r7jyax7nh.fsf@bates4.stat.wisc.edu>
Message-ID: <x2u11dew8v.fsf@biostat.ku.dk>

Douglas Bates <bates@stat.wisc.edu> writes:

> Have you tried configuring R with Goto's BLAS
>                 http://www.cs.utexas.edu/users/kgoto/
> 
> I haven't worked with Opteron or Athlon64 computers but I understand
> that Goto's BLAS are very effective on those machines.  Furthermore
> Goto's BLAS are (only) available as .so libraries so you don't need to
> mess with creating the .so version.

I tried it, yes. Somewhat to my surprise, it seemed to be not quite as
fast as the threaded ATLAS, but I wasn't very systematic about the
benchmarking.

(and the Goto items have license issues, which get in the way for
binary distributions.)

-- 
   O__  ---- Peter Dalgaard             Blegdamsvej 3  
  c/ /'_ --- Dept. of Biostatistics     2200 Cph. N   
 (*) \(*) -- University of Copenhagen   Denmark      Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard@biostat.ku.dk)             FAX: (+45) 35327907


[Rd] ATLAS threaded 64 bit (Opteron) - need *.so?
Peter Dalgaard