Re: Octave for Mac with Reference Lapack

[Lukas Reichlin]

On 08.06.2012, at 05:28, Alexander Hansen wrote:

> 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/

Hi Alexander

Thanks for the lapack241 package! Are there any news regarding an octave 
variant linked against lapack341? I'm awaiting it eagerly, especially for Mac 
OS X 10.7 :-)

Best regards,
Lukas