On 2014-03-14 18:55, Stéphane Mottelet wrote:
--------------------
Hello,
Le 13/03/2014 19:31, anastasia athanasiou a écrit :
Hello everyone,
it is true, I couldn't produce any meaningful results using
/fmincon/ in Scilab 5.4.1, while the module worked perfectly in the
previous version (Scilab 5-3.3).
However, running the nonlinear constrained optimization problem in
Scilab proved rather slow.
Scilab required the triple time for the solution of the program
with respect to Matlab.
At this point I should add that I was very careful to use the same
optimset in both Scilab and Matlab runs.
Does anyone have any experience in /fmincon/ time performance in Scilab?
It seems that nobody cares about optimization issues in the Scilab
team... Common guys, at least show that you are still alive ! Are you
just able to send us e-mails about the Scilab-Tec event :-D ? The
problem with sci-ipot seems to be an issue with the interface code,
maybe someone out there could be able to help a little bit ? I thought
that "Scilab complimentary modules" were supposed to get some
particular support from the team.
And, "Is this email not displaying correctly?
View it in your browser".
If everybody used "plain text", everything in this mail list would
take up much less space. Nobody uses any formatting, anyhow ...
/Stefan
PS. Stéphane, is the fsqp toolbox accessible to all Scilab users?
Of course. Which platform/os are you using ?
S.
Thank you for your attention, Natasha
On 26/02/2014 20:25, "Stéphane Mottelet (UTC)" wrote:
Hello,
Currently, sci_ipopt seems to be broken on Linux and MacOSX when
using the atoms package for Scilab 5.4.1. Since fmincon relies on
sci_ipot, fmicon is equally broken... BTW, users needing an
optimization toolbox with general non-linear constraints are not
lucky with Scilab. As far as I am concerned, I still use fsqp,
which cannot be easily released as an Atoms module because of
proprietary code. But Ipopt is said to really outperform fsqp, so I
am rather impatient to see it coming.
As it is the only module of this class/kind (optimization +
complementary module), the Scilab team should take care of the
functionnality of it when new versions of Scilab are released.
Stéphane
Le 26/02/2014 20:13, Stéphane Mottelet a écrit :
---------- Forwarded message ----------
From: *Paul Bignier* <[email protected]
<mailto:[email protected]>>
Date: 2014-02-26 16:46 GMT+01:00
Subject: Re: [Scilab-users] fmincon won't work
To: [email protected] <mailto:[email protected]>,
"International users mailing list for Scilab."
<[email protected] <mailto:[email protected]>>
Hello,
Did you check that your problem matched the cases described on
fmincon home page <http://atoms.scilab.org/toolboxes/fmincon>?
Regards,
Paul
On 02/26/2014 04:13 PM, Anastasia Athanasiou wrote:
Hello everyone! I am a new Scilab 5.4.1 user (in Ubuntu 12.04.4).
I installed fmincon 0.3.1-1 using atoms, but when I tried it on the first
help example I obtained a rather weird output:
fval = 0.
x = 10^(-318) * Inf Inf
Could anyone help me please?
Thank you in advance, Natasha
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