On Oct 7, 2005, at 4:00 PM, I wrote:

>   regardless, pysparse is BSD
>  licensed, so it's perfectly legal to use his code to improve
>  scipy.sparse (assuming that rigorous benchmarking determines that there
>  are, in fact, improvements to be made). We'll do some tests and, if a
>  merge is warranted, we'll run it by Roman out of courtesy.

I've finally done some benchmarking of scipy.sparse and PySparse and 
posted my results and comments on plone[*]:

     <http://www.scipy.org/wikis/featurerequests/SparseSolvers> 

Bottom line is that, with a couple of exceptions, PySparse is both 
faster and less memory intensive than SciPy. I don't know whether 
anything can be lifted from PySparse to improve SciPy's implementation.

[*] Not that this comes as a surprise to anybody here, but the SciPy 
plone wiki is scary slow. I also couldn't get it to accept reST, even 
though I've seen other people using it there.
-- 
Jonathan E. Guyer, PhD
Metallurgy Division
National Institute of Standards and Technology
<http://www.metallurgy.nist.gov/> 

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