Re: Octave for Mac with Reference Lapack

[Lukas Reichlin]

On 29.05.2012, at 16:35, Alexander Hansen wrote:

> On 5/29/12 4:22 AM, Ben Abbott wrote:
>> 
>> On May 29, 2012, at 3:29 AM, Lukas Reichlin wrote:
>> 
>>> Hi Alexander
>>> 
>>> Would you help me creating an Octave variant for Fink with reference BLAS 
>>> and LAPACK libraries (both included in lapack 3.4.1 from 
>>> http://www.netlib.org/lapack/)?
>>> 
>>> The reason for such a variant is that I'm experiencing problems with stuff 
>>> like wrong Hankel singular values and non-converging SVDs with both ATLAS 
>>> and Apple's Accelerate/Veclib framework. The SLICOT authors recommend that 
>>> I use the reference LAPACK implementation from Netlib. It solved the 
>>> problems, and now I would like to use reference LAPACK also for Octave 
>>> itself and not only my control package.
>>> 
>>> Best regards,
>>> Lukas
>> 
>> Lukas,
>> 
>> Do you have a simple example that demonstrates the problem ? ... or maybe a 
>> link to the details ?
>> 
>> Ben
>> 
> 
> I _can_ do it, yeah.  We found under testing that it's best to use the
> same LAPACK/BLAS provider for any dependencies of Octave as for Octave
> itself, so that's going to entail making variants for Octave, arpack-ng,
> and qrupdate.  It'll probably be best to create a package based on
> lapack-3.4.1 that all of these can build against.
> 
> I'd like to see a test case, too.
> -- 
> Alexander Hansen, Ph.D.
> Fink User Liaison
> http://finkakh.wordpress.com/

Hi Alexander,

Such variants would be great! It would not only ease my developer life, it 
would (IMHO) also create the first Octave for Mac variant that we can recommend 
to the users.

Best regards,
Lukas