[Numpy-discussion] performance matrix multiplication vs. matlab

Chris Colbert sccolbert@gmail....
Sun Jun 7 13:47:13 CDT 2009


when i had problems building atlas in the past (i.e. numpy.test()
failed) it was a problem with my lapack build, not atlas. The netlib
website gives instructions for building the lapack test suite. I
suggest you do that and run the tests on lapack and make sure
everything is kosher.

Chris

On Sun, Jun 7, 2009 at 5:52 AM, Gabriel Beckers<beckers@orn.mpg.de> wrote:
> OK, perhaps I drank that beer too soon...
>
> Now, numpy.test() hangs at:
>
> test_pinv (test_defmatrix.TestProperties) ...
>
> So perhaps something is wrong with ATLAS, even though the building went
> fine, and "make check" and "make ptcheck" reported no errors.
>
> Gabriel
>
> On Sun, 2009-06-07 at 10:20 +0200, Gabriel Beckers wrote:
>> On Sat, 2009-06-06 at 12:59 -0400, Chris Colbert wrote:
>> > ../configure -b 64 -D c -DPentiumCPS=2400 -Fa  -alg -fPIC
>> > --with-netlib-lapack=/home/your-user-name/build/lapack/lapack-3.2.1/Lapack_LINUX.a
>>
>> Many thanks Chris, I succeeded in building it.
>>
>> The configure command above contained two problems that I had to correct
>> to get it to work though.
>>
>> In case other people are trying this, I used:
>>
>> ../configure -b 32 -D c -DPentiumCPS=1800 -Fa alg -fPIC
>> --with-netlib-lapack=/home/your-user-name/build/lapack/lapack-3.2.1/lapack_LINUX.a
>>
>> That is (in addition to the different -b switch for my 32-bit machine
>> and the different processor speed): the dash before "alg" should be
>> removed, and "Lapack_LINUX.a" should be "lapack_LINUX.a".
>>
>> Gabriel
>>
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>
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