* Lukas Reichlin <lukas.reichlin.li...@gmail.com> [2012-09-03 12:03]:
> On 03.09.2012, at 10:39, Rafael Laboissiere <raf...@laboissiere.net> wrote: > > > * Rafael Laboissiere <raf...@laboissiere.net> [2012-08-30 23:47]: > > > >> * Carnë Draug <carandraug+...@gmail.com> [2012-08-27 16:43]: > >> > >>> a new release of control package is out, version 2.3.53, by Lukas > >>> Reichlin. > >> > >> In exercising the tests in inst/@lti/minreal.m, I got the error below. > >> Is it normal? > >> > >> I am running octave 3.6.2 on a Debian unstable system. > >> > >> [snip] > > > > Testing ltimodels and bstmodred also yield errors, cf below. > > > > [snip] > > You can check whether the observed and expected results are equivalent > state-space models (i.e. state-transformation, see command prescale for > formulae). This can be done, e.g., by inspection of the Hankel singular > values (command hsvd), time response (step, impulse) or frequency > response (sigma). > > If they are the same, there should be nothing to worry about. If you > want the same results, use Reference BLAS (and LAPACK) from > www.netlib.org instead of ATLAS which you are probably using. The > SLICOT authors recommend the use of the reference implementations. > Correct results are more important than minor speed advantages of > automatically tuned linear algebra software, aren't they? :-) I built the control package on my Debian system with libblas-dev installed and libatlas3-base, libatlas-dev, libopenblas-base, and libopenblas-dev removed. I still get the same errors in the unit testings. Here is the build log of the Debian package octave-control (version 2.3.53-1) with the same errors: https://buildd.debian.org/status/fetch.php?pkg=octave-control&arch=i386&ver=2.3.53-1&stamp=1346708061 It seems that using the Reference BLAS is not enough for getting rid of the problem. Rafael ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Octave-dev mailing list Octave-dev@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/octave-dev
