[Scilab-users] fmincon won't work

[Stefan Du Rietz]

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* <paul.bignier at scilab-enterprises.com
>>>> <mailto:paul.bignier at scilab-enterprises.com>>
>>>> Date: 2014-02-26 16:46 GMT+01:00
>>>> Subject: Re: [Scilab-users] fmincon won't work
>>>> To: athanasiou at dica.unict.it <mailto:athanasiou at dica.unict.it>,
>>>> "International users mailing list for Scilab."
>>>> <users at lists.scilab.org <mailto:users at lists.scilab.org>>
>>>>
>>>>
>>>>
>>>> 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
>>>>>
>>>>> _______________________________________________
>>>>> users mailing list
>>>>> users at lists.scilab.org  <mailto:users at lists.scilab.org>
>>>>> http://lists.scilab.org/mailman/listinfo/users
>>>>
>>>> --
>>>> Paul BIGNIER
>>>> Development engineer
>>>> -----------------------------------------------------------
>>>> Scilab Enterprises
>>>> 143bis rue Yves Le Coz - 78000 Versailles, France
>>>> Phone:+33.1.80.77.04.69  <tel:%2B33.1.80.77.04.69>
>>>> http://www.scilab-enterprises.com
>>>>
>>>> _______________________________________________
>>>> users mailing list
>>>> users at lists.scilab.org <mailto:users at lists.scilab.org>
>>>> http://lists.scilab.org/mailman/listinfo/users
>>>>
>>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> users mailing list
>>> users at lists.scilab.org
>>> http://lists.scilab.org/mailman/listinfo/users
>>
>>
>>
>> _______________________________________________
>> users mailing list
>> users at lists.scilab.org
>> http://lists.scilab.org/mailman/listinfo/users
>
>
>
> _______________________________________________
> users mailing list
> users at lists.scilab.org
> http://lists.scilab.org/mailman/listinfo/users
>