[Numpy-discussion] inverting and calculating eigenvalues for many small matrices

Daniel Wheeler daniel.wheeler2 at gmail.com
Tue Jul 12 10:10:58 EDT 2011


On Tue, Jul 12, 2011 at 3:51 AM, Dag Sverre Seljebotn
<d.s.seljebotn at astro.uio.no> wrote:
> On 07/11/2011 11:01 PM, Daniel Wheeler wrote:
>> Hi, I am trying to find the eigenvalues and eigenvectors as well as
>> the inverse for a large number of small matrices. The matrix size

> If you want to go the Cython route, here's a start:
>
> http://www.vetta.org/2009/09/tokyo-a-cython-blas-wrapper-for-fast-matrix-math/

Thanks for the heads up. Looks like an option. Presumably, it would
still have to use "map" even with more direct access to BLAS (still
going C <-> python for every matrix)? Also, adding extra non-standard
dependencies is a problem as this code is part of a production code
that's passed onto others.


-- 
Daniel Wheeler



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