Hi Andy,
I was suspicious of clang, I'd rather this build with gcc. I'll look into
changing that.
Here's the output from distutils on blas_opt:
{'extra_link_args': ['-Wl,-framework', '-Wl,Accelerate'], 'extra_compile_args':
['-msse3', '-I/System/Library/Frameworks/vecLib.framework/Headers'],
'define_macros': [('NO_ATLAS_INFO', 3)]}
Do you see anything suspicious there?
I'm trying to find _ATL_drotg, but I'm first having trouble locating the
appropriate .so files on my system. I'll have more info once I track them down.
I'll check cblas and atlas.
Thanks for the help!
Best,
Andrew
On Oct 16, 2012, at 1:11 PM, Andreas Mueller <[email protected]> wrote:
> Hi Andrew.
> Let's see if we can get to the bottom of this.
> I'm really no expert here.
>
> On 10/16/2012 09:01 PM, Andrew Godbehere wrote:
>> otools (as opposed to ldd) on arrayfuncs.so yields:
>> (1) /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current
>> version 169.3.0)
>> (2) /System/Library/Frameworks/Accelerate.framework/Versions/A/Accelerate
>> (compatibility version 1.0.0, current version 4.0.0)
>>
>> I'm hoping this isn't an issue with OSX Accelerate.
>>
>> arrayfuncs.so was built as follows:
>>
>> /usr/bin/clang -bundle -undefined dynamic_lookup -L/opt/local/lib
>> build/temp.macosx-10.8-x86_64-2.7/sklearn/utils/arrayfuncs.o
>> -Lbuild/temp.macosx-10.8-x86_64-2.7 -lcblas -lm -o
>> sklearn/utils/arrayfuncs.so -Wl,-framework -Wl,Accelerate
>>
> Err. Has any one tried building with clang yet? But I guess that's not the
> problem ;)
> I would have expected some atlas linker flags.
> Do you by any chance know where
> _ATL_drotg is defined? I have drotg from cblas and it is defined in cblas.so.
> So I would guess some linker flag is missing.
>
> Also, could you please run:
>
> from numpy.distutils.system_info import get_info; print get_info('blas_opt',
> 0)
>
> This should tell us what numpy things are good compiler flags.
>
> Andy
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