[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Octave-bug-tracker] [bug #45890] Sparse A*x and A+B are a bit slow
From: |
Kai Torben Ohlhus |
Subject: |
[Octave-bug-tracker] [bug #45890] Sparse A*x and A+B are a bit slow |
Date: |
Mon, 07 Sep 2015 05:31:14 +0000 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.85 Safari/537.36 |
Update of bug #45890 (project octave):
Priority: 5 - Normal => 3 - Low
Item Group: None => Performance
Status: None => Wont Fix
Open/Closed: Open => Closed
_______________________________________________________
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
_______________________________________________________
Reply to this item at:
<http://savannah.gnu.org/bugs/?45890>
_______________________________________________
Message sent via/by Savannah
http://savannah.gnu.org/
- [Octave-bug-tracker] [bug #45890] Sparse A*x and A+B are a bit slow, Ceral Paquet, 2015/09/06
- [Octave-bug-tracker] [bug #45890] Sparse A*x and A+B are a bit slow,
Kai Torben Ohlhus <=
- [Octave-bug-tracker] [bug #45890] Sparse A*x and A+B are a bit slow, Ceral Paquet, 2015/09/08
- [Octave-bug-tracker] [bug #45890] Sparse A*x and A+B are a bit slow, Kai Torben Ohlhus, 2015/09/08
- [Octave-bug-tracker] [bug #45890] Sparse A*x and A+B are a bit slow, Ceral Paquet, 2015/09/08
- [Octave-bug-tracker] [bug #45890] Sparse A*x and A+B are a bit slow, Kai Torben Ohlhus, 2015/09/08
- [Octave-bug-tracker] [bug #45890] Sparse A*x and A+B are a bit slow, Carlo de Falco, 2015/09/08
- [Octave-bug-tracker] [bug #45890] Sparse A*x and A+B are a bit slow, Carlo de Falco, 2015/09/08
- [Octave-bug-tracker] [bug #45890] Sparse A*x and A+B are a bit slow, Marco Caliari, 2015/09/11
- [Octave-bug-tracker] [bug #45890] Sparse A*x and A+B are a bit slow, John W. Eaton, 2015/09/11
- [Octave-bug-tracker] [bug #45890] Sparse A*x and A+B are a bit slow, Marco Caliari, 2015/09/11