[SciPy-user] eigenvalues of sparse matrix
oliphant at ee.byu.edu
Thu Oct 28 11:53:24 CDT 2004
> Does anyone know how much work it would be to get ARPACK support in
> scipy? Even just minimal support. This is totally new ground for me,
> so I'd like to know if I'm biting off more than I can chew.
After looking over ARPACK, it looks to me that you could get a
functional ARPACK interface in 1-2 days, using f2py. Then, you could
look at the linalg/iterative methods that interface with
reverse-communication fortran code to get an idea how you might write
simpler Python wrappers to the raw wrappers produced by f2py.
I don't think this would be hard at all. It would be a good way for you
to learn f2py, if you are not already familiar with it. Also, you might
notice how iterative and sparse f2py interfaces use a (very simple)
templating mechanism (in scipy_distutils/from_template.py) so that
interfaces for all four precisions are maintained with a single code-base.
But, if you produce an interface for the precision you care about, I
could handle converting it to a general-purpose interface for all
Is the ARPACK code distributible in Python?
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