[R] BLAS or ATLAS?

[Prof Brian Ripley]

What OS is this for?

Several OSes (Windows, Linux, Solaris, FreeBSD ...) run on Xeons (and 
there are several sorts of Xeons, some even EM64T AMD-clones).

On Wed, 23 Feb 2005, Tom Colson wrote:

> I'm trying to tweak multi-threading on a multiprocessor box(Xeon).
> Reading appendix a.2.2 in the install and admin menu, I see that I can
> use the internal BLAS lib and/or a multi-thread version of ATLAS (Where
> to get?)

The last _is_ described in Appendix A.2.2, together with several other 
possibilities.

> Question: Intel claims their libraries are faster than ATLAS. Has anyone
> compiled R against the Intel BLAS? If so...how did you do it?
>
> http://developer.intel.com/software/products/mkl/features/lin_alg.htm

That _is_ described in Appendix A.2.2.

> And I'm in the market for a pre-built Atlas dual processor lib for Xeon.
> Know where I can find one?

-- 
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