[SciPy-User] deterministic python code which is unstable

[Andreas Hilboll]

On 05.06.2014 17:49, Frédéric Parrenin wrote:
> Is it not possible to bug report those linear algebra libraries?

If you could pinpoint the problem to scipy.optimize.leastsq, you could
look into the 'ier' and 'mesg' return values to find a reason for
possible problems.

Cheers,
  Andreas.


> 
> 
> 2014-06-05 17:33 GMT+02:00 Robert Kern <robert.kern at gmail.com
> <mailto:robert.kern at gmail.com>>:
> 
>     On Thu, Jun 5, 2014 at 4:14 PM, Frédéric Parrenin
>     <parrenin at ujf-grenoble.fr <mailto:parrenin at ujf-grenoble.fr>> wrote:
>     > Thanks for the hint.
>     >
>     > I would suggest to output a warning in scipy.optimize.leastsq() and
>     > numpy.linalg.solve() when such circumstances happen.
> 
>     We don't know when that happens. It's not our code that is doing it
>     but the underlying linear algebra libraries, which are a black box to
>     us as far as this is concerned.
> 
>     --
>     Robert Kern
>     _______________________________________________
>     SciPy-User mailing list
>     SciPy-User at scipy.org <mailto:SciPy-User at scipy.org>
>     http://mail.scipy.org/mailman/listinfo/scipy-user
> 
> 
> 
> 
> _______________________________________________
> SciPy-User mailing list
> SciPy-User at scipy.org
> http://mail.scipy.org/mailman/listinfo/scipy-user
> 


-- 
-- Andreas.