[Scipy-tickets] [SciPy] #858: faster sparse matrices

SciPy scipy-tickets@scipy....
Sat Jan 31 22:00:39 CST 2009


#858: faster sparse matrices
-------------------------------------+--------------------------------------
 Reporter:  sascha.baumanns          |        Owner:  wnbell  
     Type:  task                     |       Status:  assigned
 Priority:  normal                   |    Milestone:  0.8.0   
Component:  scipy.sparse             |      Version:  devel   
 Severity:  normal                   |   Resolution:          
 Keywords:  cython, sparse, speedup  |  
-------------------------------------+--------------------------------------
Comment (by wnbell):

 Sascha, I'm suprised that multiplication would be slower.  When I first
 wrote the CSR * CSR code I tested against MATLAB and the performance was
 comparable.  Are you sure that the matrices you're multiplying are in the
 same format?  Operations of the form CSR * CSR or CSC * CSC or BSR * BSR
 should all be fast.

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Ticket URL: <http://scipy.org/scipy/scipy/ticket/858#comment:6>
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