[Octave-bug-tracker] [bug #45890] Sparse A*x and A+B are a bit slow

[Kai Torben Ohlhus]

Update of bug #45890 (project octave):

                Priority:              5 - Normal => 3 - Low                
              Item Group:                    None => Performance            
                  Status:                    None => Wont Fix               
             Open/Closed:                    Open => Closed                 

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Follow-up Comment #1:

Your benchmark looks good to me! Octave's sparse matrix operations are not by
factor 2 slower than MATLAB, and even outperform MATLAB in A'. Only the sparse
matrix creation looks improvable to me.

But to really understand your benchmarks you need to tell more about your
system, e.g. which SuiteSparse
(https://packages.debian.org/source/jessie/suitesparse) you have installed,
the MATLAB/Octave version, did you do any performance tweaks to
MATLAB/Octave?

If you was interested in sparse matrix computations within Octave you might
consider contributing to Octave and find out the potential bottle necks in
your performed computation.

http://wiki.octave.org/Projects#Sparse_Matrices

Anyway, don't be shy to publish results like them!

Best,
Kai

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