[SciPy-dev] sparse matrix support status
oliphant at ee.byu.edu
Fri Oct 7 13:43:19 CDT 2005
Fernando Perez wrote:
>>Travis Oliphant wrote:
>>>There is a sparse matrix in SciPy now: under Lib/sparse. I've
>>>implemented about 3 or 4 sparse matrices over the years, using various
>>>libraries as back-ends. Right now, the sparse matrix code builds on top
>>>of superlu and some home-grown caclulation tools.
>>>I'd love some help with this. So, take a look at what's there and see
>>>how you can help.
>Just a note on this topic: an acquaintance at CU Boulder recently tried using
>scipy's Lib/sparse and ran some comparisons against pysparse
>(http://pysparse.sourceforge.net). He found the pysparse performance to be a
>lot better, and ended up using that. Pysparse uses also SuperLU, so I'm not
>exactly sure what the root cause of the discrepancy may be, and he didn't
>track it down further (he just switched over to using pysparse and moved on).
I know that pysparse defines some C-types. But there may be other
issues as well. I'd love to merge pysparse stuff in. Robert Cimrman
has shown interest in sparse matrices. Perhaps he could help.
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