[SciPy-user] How can I improve the efficiency linalg.eig with respect to certain properties of the matrices

Pietro Berkes p.berkes at biologie.hu-berlin.de
Wed Jun 11 05:44:07 EDT 2003


We have written some f2py wrappers for the most important LAPACK routines 
concerning standard and generalized symmetrical eigenvalue problems. I have 
no time now, but I could mail something on this argument next week.

Pietro.


On Wednesday 11 June 2003 11:34, Nils Wagner wrote:
> Hi all,
>
> I wonder, if I can speed up the computation of a standard/generalized
> large scale eigenvalue problem (n>10^3) in scipy.
> I guess it should be possible somehow, since linalg.eig ignores the
> special structure
> (symmetrie, band, definiteness) of the matrix. Are there any efforts in
> adapting
> linalg.eig with respect to certain properties of the matrix A in
> (Ax=\lambda x) and matrices for (Ax = \lambda Bx) ?
>
>
> Any comments or suggestions ?
>
> Nils




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