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-boun...@lists.scilab.org> On Behalf Of CHEZE David 227480 Sent: Monday, June 7, 2021 9:20 AM To: Users mailing list for Scilab <users@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-boun...@lists.scilab.org> De la part de Stéphane Mottelet Envoyé : samedi 5 juin 2021 22:17 À : Users mailing list for Scilab <users@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.tool...@gmail.com<mailto:grocer.tool...@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 [Image removed by sender.]<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Garanti sans virus. www.avast.com<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Le sam. 5 juin 2021 à 14:06, Stéphane Mottelet <stephane.motte...@utc.fr<mailto:stephane.motte...@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.tool...@gmail.com<mailto:grocer.tool...@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 [Image removed by sender.]<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Garanti sans virus. www.avast.com<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Le mar. 1 juin 2021 à 12:21, Stéphane Mottelet <stephane.motte...@utc.fr<mailto:stephane.motte...@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 S. > > Thank you for your advice, > > David > > > -----Message d'origine----- > De : users > <users-boun...@lists.scilab.org<mailto:users-boun...@lists.scilab.org>> De la > part de Stéphane Mottelet > Envoyé : lundi 19 avril 2021 10:43 > À : Users mailing list for Scilab > <users@lists.scilab.org<mailto:users@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) > 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 > https://antispam.utc.fr/proxy/v3?i=cWdzUmRSM0ZiRHpoUDkxTSw3-90dQgKDkqmWWemZ6js&r=WXNQOUY5VXRSNUlTdlVTTgAgPzRHrDev93-c71JTxG3gYERdftx8enpEGCicW5Zy&f=R0pWUVNEaUFuMTBCTlptbqaYxU0NWnHz-Aov_fSSM1D4vfIz2L0jb50-moW0RphD&u=http%3A//www.utc.fr/~mottelet&k=8YLU > > _______________________________________________ > users mailing list > users@lists.scilab.org<mailto:users@lists.scilab.org> > https://antispam.utc.fr/proxy/v3?i=cWdzUmRSM0ZiRHpoUDkxTSw3-90dQgKDkqmWWemZ6js&r=WXNQOUY5VXRSNUlTdlVTTgAgPzRHrDev93-c71JTxG3gYERdftx8enpEGCicW5Zy&f=R0pWUVNEaUFuMTBCTlptbqaYxU0NWnHz-Aov_fSSM1D4vfIz2L0jb50-moW0RphD&u=http%3A//lists.scilab.org/mailman/listinfo/users&k=8YLU > _______________________________________________ > users mailing list > users@lists.scilab.org<mailto:users@lists.scilab.org> > https://antispam.utc.fr/proxy/v3?i=cWdzUmRSM0ZiRHpoUDkxTSw3-90dQgKDkqmWWemZ6js&r=WXNQOUY5VXRSNUlTdlVTTgAgPzRHrDev93-c71JTxG3gYERdftx8enpEGCicW5Zy&f=R0pWUVNEaUFuMTBCTlptbqaYxU0NWnHz-Aov_fSSM1D4vfIz2L0jb50-moW0RphD&u=http%3A//lists.scilab.org/mailman/listinfo/users&k=8YLU -- 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 _______________________________________________ users mailing list users@lists.scilab.org<mailto:users@lists.scilab.org> http://lists.scilab.org/mailman/listinfo/users _______________________________________________ users mailing list users@lists.scilab.org<mailto:users@lists.scilab.org> http://lists.scilab.org/mailman/listinfo/users _______________________________________________ users mailing list users@lists.scilab.org<mailto:users@lists.scilab.org> http://lists.scilab.org/mailman/listinfo/users _______________________________________________ users mailing list users@lists.scilab.org<mailto:users@lists.scilab.org> http://lists.scilab.org/mailman/listinfo/users
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