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Re: inv() optimization flags
From: |
Jordi Gutiérrez Hermoso |
Subject: |
Re: inv() optimization flags |
Date: |
Tue, 08 Oct 2013 14:49:43 -0400 |
On Tue, 2013-10-08 at 18:47 +0300, Giorgos Bontzios wrote:
> I've noticed that the inv() function of Octave is quite faster than
> Seldon's which is weird since, to the best of my knowledge, Octave
> calls also the same LAPACK functions for inversion.
It does. Have you already read this FAQ?
http://wiki.octave.org/FAQ#How_does_Octave_solve_linear_systems.3F
The exact method depends on the type of matrix that you input. If you
need more details, I would recommend stepping through the C++ source
with a debugger so you can see which LAPACK method Octave is calling.
- Jordi G. H.