Re: Octave for Mac with Reference Lapack

[Lukas Reichlin]

On 29.05.2012, at 21:54, c. wrote:

> 
> On 29 May 2012, at 20:36, Lukas Reichlin wrote:
> 
>> Oops, Sorry, of course you are getting perfect results: octave-devel also 
>> includes the reference lapack :-) See the Makefile in the "src" subfolder.
> 
> I made this change to the Makefile:
> 
> 
> $ svn diff
> Index: Makefile
> ===================================================================
> --- Makefile  (revision 10533)
> +++ Makefile  (working copy)
> @@ -1,5 +1,5 @@
> -# LAPACK_LIBS := $(shell mkoctfile -p LAPACK_LIBS)
> -# BLAS_LIBS := $(shell mkoctfile -p BLAS_LIBS)
> +LAPACK_LIBS := $(shell mkoctfile -p LAPACK_LIBS)
> +BLAS_LIBS := $(shell mkoctfile -p BLAS_LIBS)
> FLIBS := $(shell mkoctfile -p FLIBS)
> 
> all: devel_slicot_functions.oct
> @@ -23,9 +23,9 @@
>       rm -rf *.o *.f lapack-3.4.1
> 
> # slicot functions
> -devel_slicot_functions.oct: devel_slicot_functions.cc slicotlibrary.a 
> lapacklibrary.a
> -     mkoctfile devel_slicot_functions.cc common.cc slicotlibrary.a 
> lapacklibrary.a \
> -              ${FLIBS}
> +devel_slicot_functions.oct: devel_slicot_functions.cc slicotlibrary.a 
> +     mkoctfile devel_slicot_functions.cc common.cc slicotlibrary.a \
> +        $(BLAS_LIBS) $(LAPACK_LIBS) $(FLIBS)
> 
> clean:
>       rm -rf *.o core octave-core *.oct *~ *.f slicot lapack-3.4.1
> 
> 
> and checked that vecLib is actually linked:
> 
> $ otool -L devel_slicot_functions.oct 
> devel_slicot_functions.oct:
>       /System/Library/Frameworks/Accelerate.framework/Versions/A/Accelerate 
> (compatibility version 1.0.0, current version 4.0.0)
>       /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current 
> version 125.2.11)
>       /opt/octave/3.7/lib/octave/3.7.0+/liboctinterp.1.dylib (compatibility 
> version 2.0.0, current version 2.1.0)
>       /opt/octave/3.7/lib/octave/3.7.0+/liboctave.1.dylib (compatibility 
> version 2.0.0, current version 2.1.0)
>       /opt/octave/3.7/lib/octave/3.7.0+/libcruft.1.dylib (compatibility 
> version 2.0.0, current version 2.0.0)
>       /usr/lib/libstdc++.6.dylib (compatibility version 7.0.0, current 
> version 7.9.0)
>       /System/Library/Frameworks/vecLib.framework/Versions/A/vecLib 
> (compatibility version 1.0.0, current version 268.0.1)
> 
> and I still get "correct" results:
> 
> PowerPlant:
> ...
> err =  0.22350
> st =  1
> 
> DestillationME:
> err =  0.13644
> 
>> Lukas
> c.

I'm surprised to see it working, also on my machine. I fear it doesn't help 
much, as Accelerate 10.6 used to be the best out of three:

1. Accelerate OSX 10.6
2. ATLAS 3.9 from MacPorts
3. Accelerate OSX 10.7

I don't have access to 10.7 this evening, and when I build the variant 

        octave-devel +atlas +fltk +gcc45

from the attached MacPorts portfile, mkoctfile returns

nothing for  $(shell $(MKOCTFILE) -p LAPACK_LIBS)
framework veclib for  $(shell $(MKOCTFILE) -p BLAS_LIBS)



Lukas

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