[Scilab-users] fmincon toolbox update
Stéphane Mottelet
stephane.mottelet at utc.fr
Tue Jun 8 08:49:17 CEST 2021
Hi,
These problems are now fixed in version 1.3.1. For the Windows version,
if the update of libifcoremd.dll is necessary, the writeability of
SCI/bin is tested in order to run the update script with admin rights
only if needed.
S.
Le 07/06/2021 à 10:01, Clément David a écrit :
>
> Hello all,
>
> I try to install to check fmincon to check on my machine and give you
> a fresh eye on the basic install/usage. I have a few remarks:
>
> 1. My Scilab and all atoms packages are installed in user directories
> but the library check at startup on sci_ipopt ask for
> administrator access to update. That’s a pity to require that.
> 2. The message “This program contains Ipopt, a library for
> large-scale nonlinear optimization.” looks strange to me, this
> function is named ipopt and I think the references are written in
> the documentation and on the DESCRIPTION file. There is no need to
> display that at runtime.
>
> Otherwise basic examples are running even if it change the toolbox
> loading order (sci_ipopt after fmincon, scicolpack after sci_ipopt, etc…).
>
> Clément
>
> *From:*users <users-bounces at lists.scilab.org> *On Behalf Of *CHEZE
> David 227480
> *Sent:* Monday, June 7, 2021 9:20 AM
> *To:* Users mailing list for Scilab <users at lists.scilab.org>
> *Subject:* Re: [Scilab-users] fmincon toolbox update
>
> Hi all,
>
> I installed both SciPOpt and fmincon from ATOMS on Scilab 6.1.0
> WIN10-64bits, a few weeks ago and the demos are running properly. I
> had some minor dependencies issues while installing, I don’t remember
> exactly , probably the SciIPopt version was not aligned with the one
> required by fmincon.
>
> My 2 cents
>
> David
>
> *De :*users <users-bounces at lists.scilab.org> *De la part de* Stéphane
> Mottelet
> *Envoyé :* samedi 5 juin 2021 22:17
> *À :* Users mailing list for Scilab <users at lists.scilab.org>
> *Objet :* Re: [Scilab-users] fmincon toolbox update
>
> May I ask if there are there some Windows users who read this post and
> who successfully installed sci_ipopt or fmincon ?
>
> S.
>
> Le 5 juin 2021 à 15:21, Éric Dubois <grocer.toolbox at gmail.com
> <mailto:grocer.toolbox at gmail.com>> a écrit :
>
>
>
> Thanks Stéphane for your quick answer
>
> I have tried installing fmincon first, then scicolpack (it works),
> then sci_ipopt and it does not work: only
> file sci_ipopt_1.3.bin.x64.Windows.zipis downloaded. So it seems:
>
> - first that dependencies are not deal with for the fmincon
> distribution that Atoms uses;
>
> - second, that there is some problem using Atoms for loading
> sci_ipopt
>
> Maybe I should not use Atoms, but when it works it is the most
> convenient way to download a module.
>
> Éric
>
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>
>
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> Le sam. 5 juin 2021 à 14:06, Stéphane Mottelet
> <stephane.mottelet at utc.fr <mailto:stephane.mottelet at utc.fr>> a écrit :
>
> Hi Eric,
>
> Could you be more precise ? I have I installed fmincon on at
> least 10 different machines for testing purposes (mostly
> under Windows 10) and did not encounter any problem. Atoms is,
> I must say, a very unstable (not to say crappy) piece of
> software and in particular very hard to use smoothly when your
> are developing some modules and play e.g. with offline mode.
>
> What I would do first is to uninstall every module then
> install fmincon. If problem is still here please help me by
> debugging a bit...
>
> S.
>
> Le 5 juin 2021 à 11:29, Éric Dubois
> <grocer.toolbox at gmail.com
> <mailto:grocer.toolbox at gmail.com>> a écrit :
>
>
>
> Hello Stéphane
>
> This seems very interesting, but download through Atoms
> does not work (at least for me: I use Scilab 6.1.0 under
> Windows 10): dependencies (Sci-colpac, Sci-IPOt, for those
> I have noticed) are not dealt with. Moreover, trying to
> install Sci-IPOt with Atoms fails. By the way it makes
> also make fail lthe oading of any module that could have
> been installed with Atoms, which reveals an undesirable
> feature of Atoms: failure to load a module should not
> prevent the loading of other ones.
>
> Best regards,
>
> Éric
>
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>
>
>
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>
> Le mar. 1 juin 2021 à 12:21, Stéphane Mottelet
> <stephane.mottelet at utc.fr
> <mailto:stephane.mottelet at utc.fr>> a écrit :
>
> Hi,
>
> Le 01/06/2021 à 09:53, CHEZE David 227480 a écrit :
> > Dear Stephane,
> >
> > Thank you for offering these enhanced capabilities
> in Scilab, fmincon and SciIPOpt. I'm about giving a
> try in comparison with leastsq(), on dynamic model
> parameter (~5-10) calibration purpose, based on
> measurement deviation, as time series (250 to >1000
> samples). In general for fmincon and SciIPOpt, may I
> provide the objective function with inputs argument
> through the list() syntax like
> objf=list(myofunction,x,in1,in2,..) ?
>
> Yes, you have such an example in the fitting demo ;
>
> https://gitlab.com/esi-group/scilab/forge/fmincont/-/blob/master/demos/fmincon_fit.sce
> <https://gitlab.com/esi-group/scilab/forge/fmincont/-/blob/master/demos/fmincon_fit.sce>
>
> S.
>
> >
> > Thank you for your advice,
> >
> > David
> >
> >
> > -----Message d'origine-----
> > De : users <users-bounces at lists.scilab.org
> <mailto:users-bounces at lists.scilab.org>> De la part de
> Stéphane Mottelet
> > Envoyé : lundi 19 avril 2021 10:43
> > À : Users mailing list for Scilab
> <users at lists.scilab.org <mailto:users at lists.scilab.org>>
> > Objet : [Scilab-users] fmincon toolbox update
> >
> > Hi all,
> >
> > I would like to inform you that the fmincon toolbox
> has been updated
> >
> (https://antispam.utc.fr/proxy/v3?i=cWdzUmRSM0ZiRHpoUDkxTSw3-90dQgKDkqmWWemZ6js&r=WXNQOUY5VXRSNUlTdlVTTgAgPzRHrDev93-c71JTxG3gYERdftx8enpEGCicW5Zy&f=R0pWUVNEaUFuMTBCTlptbqaYxU0NWnHz-Aov_fSSM1D4vfIz2L0jb50-moW0RphD&u=https%3A//atoms.scilab.org/toolboxes/fmincon/1.0.2&k=8YLU
> <https://antispam.utc.fr/proxy/v3?i=cWdzUmRSM0ZiRHpoUDkxTSw3-90dQgKDkqmWWemZ6js&r=WXNQOUY5VXRSNUlTdlVTTgAgPzRHrDev93-c71JTxG3gYERdftx8enpEGCicW5Zy&f=R0pWUVNEaUFuMTBCTlptbqaYxU0NWnHz-Aov_fSSM1D4vfIz2L0jb50-moW0RphD&u=https%3A//atoms.scilab.org/toolboxes/fmincon/1.0.2&k=8YLU>)
> and now includes a major feature: the Efficient
> Computation of Sparse Hessian using Coloring algorithm
> (scicolpack is now a dependency of fmincon). This
> feature was missing and now allows fmincon to consider
> really big problems. A example of such is given in the
> "minimal surface demo" which compares 3 different
> approaches of the problem: one with finite differences
> gradient, and BFGS Hessian, one with exact gradient
> and BFGS Hessian, and the last with exact gradient and
> finite differences sparse Hessian. The time factor
> between the first and the third approchach is around
> 200 for a 21x21 square but you can edit the demo file
> and increase this value. For a 51x51 square the third
> approach takes only
> > 0.45 seconds and is 2500 times faster. For a 101x101
> square the first approach takes forever and the third
> ones takes less than 2 seconds and is still 10 times
> faster than the second one.
> >
> > If some of you still use other softwares for large
> scale optimization, maybe you can now give Scilab a
> try. If you need a better control on parameters and/or
> if you are not a former/actual user of Matlab's
> fmincon, I recommend using directly ipopt (from
> sci_ipopt toolbox). But the fmincon api is quite easy
> to use. Don't hesitate to took at the code of the
> several new demos.
> >
> > Don't hesitate to contact me if you have some
> problems using fmincon of just to say that you are
> using it with success !
> >
> > Regards,
> >
> > --
> > Stéphane Mottelet
> > Ingénieur de recherche
> > EA 4297 Transformations Intégrées de la Matière
> Renouvelable Département Génie des Procédés
> Industriels Sorbonne Universités - Université de
> Technologie de Compiègne CS 60319, 60203 Compiègne
> cedex Tel : +33(0)344234688
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>
> --
> Stéphane Mottelet
> Ingénieur de recherche
> EA 4297 Transformations Intégrées de la Matière
> Renouvelable
> Département Génie des Procédés Industriels
> Sorbonne Universités - Université de Technologie de
> Compiègne
> CS 60319, 60203 Compiègne cedex
> Tel : +33(0)344234688
> http://www.utc.fr/~mottelet <http://www.utc.fr/~mottelet>
>
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--
Stéphane Mottelet
Ingénieur de recherche
EA 4297 Transformations Intégrées de la Matière Renouvelable
Département Génie des Procédés Industriels
Sorbonne Universités - Université de Technologie de Compiègne
CS 60319, 60203 Compiègne cedex
Tel : +33(0)344234688
http://www.utc.fr/~mottelet
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