[Dune] BLAS on Mac OS X

[Steffen Müthing]

Hi Patrick,

the options you should set in your opts file are --with-blas=blas and --with-lapack=lapack (actually,
it should even work without them).

But the real problem is that you don't have Fortran installed. configure tries to figure out
the Fortran name-mangling scheme for function names by compiling a number of test programs.
But without a Fortran compiler, all compilations will fail, causing the name-mangling of the BLAS
functions to fail in turn (the resulting BLAS test tries to find a symbol called "unknown" in the BLAS
library).

To cut a long story short, you need Fortran. But judging from you environment, you already have MacPorts
installed (in /opt/local), which can build gfortran for you as part of gcc - you just have to pick your version
(anything between gcc 4.2 and gcc 4.5 should work, the packages are called gcc43 etc., the resulting
binaries gcc-mp-4.x) - and bring some coffee.

Steffen

Am 10.11.2010 um 13:54 schrieb Patrick Henning:

> Hello Steffen,
> 
> I attached the config.log to this mail (its from an own module but the problem is identical for other modules).
> 
> Patrick
> 
> <config.log>
> Am 10.11.2010 um 13:36 schrieb Steffen Müthing:
> 
>> Hello Patrick,
>> 
>> BLAS really should work out of the box on OS X 10.6. Could you perhaps post
>> your config.log file?
>> 
>> Steffen
>> 
>> Am 10.11.2010 um 12:25 schrieb patrick.henning at uni-muenster.de:
>> 
>>> Hello all!
>>> 
>>> Is there someone who managed to configure DUNE with BLAS on Mac OS X 10.6?
>>> I have real trouble with this. There is already a BLAS installation on Mac
>>> OS X, but it seems that I can not access it with standard options in my
>>> config.opts. I tried the preinstalled frameworks 'vecLib'
>>> (--with-blas='-framework vecLib') and Accelerate (--with-blas=Accelerate).
>>> It did not work so I additionally installed 'atlas' (--with-blas=atlas)
>>> but again no effect.
>>> Strange thing: when I installed ALBERTA (which requires BLAS) the option
>>> '--with-blas=Accelerate' worked out fine... So this is really confusing
>>> and I wonder if anyone managed to succesfully use BLAS on a Mac.
>>> 
>>> Best regards,
>>> Patrick
>>> 
>>> 
>>> _______________________________________________
>>> Dune mailing list
>>> Dune at dune-project.org
>>> http://lists.dune-project.org/mailman/listinfo/dune
>> 
>> Steffen Müthing
>> Universität Stuttgart
>> Institut für Parallele und Verteilte Systeme
>> Universitätsstr. 38
>> 70569 Stuttgart
>> Tel: +49 711 7816 429
>> Fax: +49 711 7816 340
>> Email: steffen.muething at ipvs.uni-stuttgart.de
>> 
>> 
>> 
>> 
>> 
>> _______________________________________________
>> Dune mailing list
>> Dune at dune-project.org
>> http://lists.dune-project.org/mailman/listinfo/dune
> 

Steffen Müthing
Universität Stuttgart
Institut für Parallele und Verteilte Systeme
Universitätsstr. 38
70569 Stuttgart
Tel: +49 711 7816 429
Fax: +49 711 7816 340
Email: steffen.muething at ipvs.uni-stuttgart.de