Re: Octave for Mac with Reference Lapack

[Alexander Hansen]

On 5/31/12 10:47 AM, Lukas Reichlin wrote:
> On 31.05.2012, at 18:48, Alexander Hansen wrote:
> 
>> On 5/30/12 2:41 PM, Alexander Hansen wrote:
>>> On 5/30/12 4:03 AM, c. wrote:
>>>>
>>>> On 29 May 2012, at 23:19, Lukas Reichlin wrote:
>>>>
>>>>>
>>>>> 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)
>>>>
>>>> this seems to indicate that although you specified atlas as an option your 
>>>> Octave was linked 
>>>> against the Accelerate framework rather than ATLAS, I'm not an expert in 
>>>> portfile syntax so 
>>>> I don't see where the problem is there.
>>>>
>>>> To further check whether Octave is actually linking to vecLib you should 
>>>> do something like:
>>>>
>>>> otool -L /opt/octave/3.7/lib/octave/3.7.0+/liboctave.dylib 
>>>>
>>>> what I get is the following:
>>>>
>>>> octave/3.7.0+/liboctave.dylib:
>>>>    /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)
>>>>    /opt/arpackng/3.0.2/lib/libarpack.2.dylib (compatibility version 3.0.0, 
>>>> current version 3.0.0)
>>>>    /opt/qrupdate/1.1.1/lib/libqrupdate.1.dylib (compatibility version 
>>>> 0.0.0, current version 0.0.0)
>>>>    /sw/lib/libreadline.5.dylib (compatibility version 5.0.0, current 
>>>> version 5.2.0)
>>>>    /sw/lib/ncurses/libncurses.5.dylib (compatibility version 5.0.0, 
>>>> current version 5.0.0)
>>>>    /opt/pcre/8.20/lib/libpcre.0.dylib (compatibility version 1.0.0, 
>>>> current version 1.1.0)
>>>>    /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current 
>>>> version 125.2.11)
>>>>    /System/Library/Frameworks/Accelerate.framework/Versions/A/Accelerate 
>>>> (compatibility version 1.0.0, current version 4.0.0)
>>>>    /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)
>>>>
>>>> I think your problem might rather be with mixing up different LAPACK 
>>>> implementations rather than choosing the wrong one.
>>>>
>>>>
>>>>> Lukas
>>>> c.
>>>
>>> I'm in the process of collecting data from my own systems
>>> (control-2.3.50 and Octave 3.6.1)  to post.  Real life keeps getting in
>>> the way, though. :-)
>>>
>>> I've mandated in Fink that Octave Forge packages which use BLAS or
>>> LAPACK use the same provider as does Octave, so there shouldn't be an
>>> opportunity for any mixing.
>>
>> I've uploaded the test_control log files here:
>>
>> http://akh.users.finkproject.org/test_control/
>>
>> Notes:
>>
>> 1)  They cover Fink's currently supported platforms:  10.5/powerpc,
>> 10.5/i386, 10.6/i386, 10.6/x86_64, 10.7/x86_64 (10.5/x86_64 is
>> quasi-supported and I'm in the process getting data for that, too).
>>
>> 2)  Octave 3.4.3+ won't build in Fink on 10.5/x86_64 or 10.6/x86_64
>> using Accelerate because of configure-time failures involving the
>> interaction of gfortran and Accelerate.  powerpc, i386, and 10.7 don't
>> seem to have this issue.
>>
>> 3)  Most of the atlas-based results are for atlas-3.9.11 because that
>> was our current version until a couple of days ago.  The exception for
>> 10.7 was because I have a machine that was too new for atlas-3.9.11.
>> I'll upload results from 10.7/x86_64/atlas-3.9.11 for completeness,
>> however, since I have an older machine where atlas-3.9.11 works.
>>
>> -- 
>> Alexander Hansen, Ph.D.
>> Fink User Liaison
>> http://finkakh.wordpress.com/2012/02/21/got-job/
> 
> Wow, thanks for your work! In general, your results look familiar to me. I 
> experienced failing algorithms with Accelerate 10.7 as in
> 
> http://akh.users.finkproject.org/test_control/control-10.7-x86_64-Accelerate.txt
> 
> I hope we can circumvent these problems with a reference LAPACK variant once 
> and for all.
> 
> Best regards,
> Lukas
> 

I've put a reference LAPACK/BLAS package in Fink--it's called
"lapack341", and I have it set up to build shared libraries.

>From my testing, control-2.3.51 passed its tests on OS X Lion if built
with this LAPACK and BLAS regardless of whether Octave was built with
lapack341, atlas, or even Accelerate.  So, for right now, only the
control package has a variant that builds against lapack341.

-- 
Alexander Hansen, Ph.D.
Fink User Liaison
http://finkakh.wordpress.com/2012/02/21/got-job/