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[Octave-bug-tracker] [bug #41453] norm is really slow for sparse matrice
From: |
Massimiliano Fasi |
Subject: |
[Octave-bug-tracker] [bug #41453] norm is really slow for sparse matrices |
Date: |
Wed, 02 Apr 2014 19:45:35 +0000 |
User-agent: |
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:28.0) Gecko/20100101 Firefox/28.0 |
Follow-up Comment #16, bug #41453 (project octave):
I have submitted a new version of the patch. It uses a function defined in
eigs_base.cc to compute just one eigenvalue and it's indeed much faster than
before, even faster than norm (full (A)). The preformances are now comparable
with the ones of svd(A, 1) that remains a little bit faster (some experiments
soon).
There are still some problems that should be adressed, in particular:
* the fact that I am including a .cc file.
* the use of a complex functions even if the input matrix is real, that makes
the computation rather slower that it could be for real matrices.
(file #31108)
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File name: sparse_norm.patch Size:2 KB
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- [Octave-bug-tracker] [bug #41453] norm is really slow for sparse matrices, Massimiliano Fasi, 2014/04/01
- [Octave-bug-tracker] [bug #41453] norm is really slow for sparse matrices, Carlo de Falco, 2014/04/01
- [Octave-bug-tracker] [bug #41453] norm is really slow for sparse matrices, Massimiliano Fasi, 2014/04/01
- [Octave-bug-tracker] [bug #41453] norm is really slow for sparse matrices, Carlo de Falco, 2014/04/01
- [Octave-bug-tracker] [bug #41453] norm is really slow for sparse matrices, Massimiliano Fasi, 2014/04/01
- [Octave-bug-tracker] [bug #41453] norm is really slow for sparse matrices, Carlo de Falco, 2014/04/01
- [Octave-bug-tracker] [bug #41453] norm is really slow for sparse matrices, Carlo de Falco, 2014/04/01
- [Octave-bug-tracker] [bug #41453] norm is really slow for sparse matrices, Massimiliano Fasi, 2014/04/01
- [Octave-bug-tracker] [bug #41453] norm is really slow for sparse matrices,
Massimiliano Fasi <=
- [Octave-bug-tracker] [bug #41453] norm is really slow for sparse matrices, Carlo de Falco, 2014/04/03
- [Octave-bug-tracker] [bug #41453] norm is really slow for sparse matrices, Massimiliano Fasi, 2014/04/03
- [Octave-bug-tracker] [bug #41453] norm is really slow for sparse matrices, Carlo de Falco, 2014/04/03
- [Octave-bug-tracker] [bug #41453] norm is really slow for sparse matrices, Jordi GutiƩrrez Hermoso, 2014/04/03
- [Octave-bug-tracker] [bug #41453] norm is really slow for sparse matrices, Carlo de Falco, 2014/04/03
- [Octave-bug-tracker] [bug #41453] norm is really slow for sparse matrices, Massimiliano Fasi, 2014/04/04
- [Octave-bug-tracker] [bug #41453] norm is really slow for sparse matrices, Massimiliano Fasi, 2014/04/23