[SciPy-user] Compile scipy from SVN on OS X: no clapack ?
Wed Apr 8 02:01:41 CDT 2009
On Apr 7, 2009, at 10:41 PM, David Cournapeau wrote:
> Pierre GM wrote:
>> I'm working on a piece of code that requires numerous calls to
>> scipy.linalg.eigvals. I was surprised by the slowness of the code, so
>> I figured I'd check whether my installation of scipy was correct.
> When you said surprised by the slowness, is it comparatively to
> scipy on
> another OS on the same/comparable machine ?
Oh no, I don't have any particular reference, it's just that ~3s to
compute the eigenvalues of a 365x365 matrix looked a bit long
(especially as I need to compute a lot of those)... I was just afraid
I had missed something somewhere.
>> Turns out it's probably not: running the tests, I end up w/ some
>> messages indicating that clapack is empty. That never really mattered
>> until now...
> Accelerate does not have a clapack interface, IIRC. It should not
> much if you have an accelerated lapack
But I don;t know if I do! Do I need to compile lapack from source,
when I have an atlas from macports and the Accelerate framework ?
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