Re: Linear Algebra Libraries
Le samedi 20 mars 2010 à 20:21 +0100, Thomas Weber a écrit :
> On Sat, Mar 20, 2010 at 06:00:04PM +0100, Sylvestre Ledru wrote:
> > Le samedi 20 mars 2010 à 13:49 +0100, Marc 'HE' Brockschmidt a écrit :
> > > Sylvestre Ledru <sylvestre@debian.org> writes:
> > > > I am planning to upload some modifications in the way Linear Algebra
> > > > Libraries BLAS / LAPACK and ATLAS are handle in Debian. These libraries
> > > > are very used by many scientific software.
[...]
> > > Is it really common to switch
> > > implementations on the same machine very often?
> > Yes, it is. This kind of library are used by Scilab, R or Octave. They
> > relies strongly on these libraries and for precision, confirmation of
> > the result and performances, it is common to switch between the
> > different implementation.
>
> As Octave maintainer, I can confirm that switching the libraries is a
> routine[1]. Having a reference implementation and some highly tuned (but
> occasionally buggy) implementation is extremely valuable.
Thanks for the confirmation.
> Example in Debian:
> http://bugs.debian.org/570231
>
> [1] Actually, I'm pretty sad that ATLAS isn't allowed any more to ship a
> configuration file in /etc/ld.so.conf.d/ .
I am too. It is why I had to come up with the alternatives solution.
Sylvestre
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