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

SciPy scipy-tickets@scipy....
Fri Jan 30 06:58:04 CST 2009


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

 Hello!

 Slicing for lil matrices is very slow, matrix addition in csr/csc format
 is slow (compared with matlab) and creating a matrix via bmat(compared
 with matlab).

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Ticket URL: <http://scipy.org/scipy/scipy/ticket/858#comment:2>
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