[Ipopt] Ipopt Digest, Vol 38, Issue 8

ZhangWeizhong greatzwz at hotmail.com
Tue Feb 26 14:12:15 EST 2008

By valgrind:
 It is still the initialization problem.

==22745== 3 errors in context 3 of 6:
==22745== Conditional jump or move depends on uninitialised value(s)
==22745==    at 0x40B069B: dnrm2_ (in /home/weizhong/Desktop/Ipopt/lib/libipopt.so.0.0.0)
==22745== 3 errors in context 4 of 6:
==22745== Conditional jump or move depends on uninitialised value(s)
==22745==    at 0x40B0699: dnrm2_ (in /home/weizhong/Desktop/Ipopt/lib/libipopt.so.0.0.0)
==22745== 53 errors in context 5 of 6:
==22745== Conditional jump or move depends on uninitialised value(s)
==22745==    at 0x40BD6CE: idamax_ (in /home/weizhong/Desktop/Ipopt/lib/libipopt.so.0.0.0)
==22745==    by 0x40347BF: (within /home/weizhong/Desktop/Ipopt/lib/libipopt.so.0.0.0)
==22745== 1000 errors in context 6 of 6:
==22745== Conditional jump or move depends on uninitialised value(s)

> From: greatzwz at hotmail.com
> To: ipopt at list.coin-or.org
> Subject: RE: Ipopt Digest, Vol 38, Issue 8
> Date: Tue, 26 Feb 2008 14:08:32 -0500
> hI, all:     Now the problem is " Invalid number in NLP function or derivative detected"     And  number of iteration is "0"    Can anyone give me any suggestions?      Thank you.                                       Weizhong Zhangweizhong at RobotLab:~/Desktop/Ipopt/examples/DmocExnew$ ./dmoc_example ******************************************************************************This program contains Ipopt, a library for large-scale nonlinear optimization. Ipopt is released as open source code under the Common Public License (CPL).         For more information visit http://projects.coin-or.org/Ipopt******************************************************************************Number of nonzeros in equality constraint Jacobian...:     1000Number of nonzeros in inequality constraint Jacobian.:        0Number of nonzeros in Lagrangian Hessian.............:        0Number of Iterations....: 0Number of objective function evaluations             = 0Number of objective gradient evaluations             = 1Number of equality constraint evaluations            = 0Number of inequality constraint evaluations          = 0Number of equality constraint Jacobian evaluations   = 1Number of inequality constraint Jacobian evaluations = 0Number of Lagrangian Hessian evaluations             = 0Total CPU secs in IPOPT (w/o function evaluations)   =      0.000Total CPU secs in NLP function evaluations           =     -0.000EXIT: Invalid number in NLP function or derivative detected.Solution of the primal variables, xx[0] = 1.000000e+01x[1] = 0.000000e+00x[120] = 1.000000e+04x[150] = 1.000000e+00Objective valuef(x*) = 1.029604e+07Final value of the constraints:g(0) = 0.000000e+00g(103) = -4.000000e-02*** The problem FAILED!> From: ipopt-request at list.coin-or.org> Subject: Ipopt Digest, Vol 38, Issue 8> To: ipopt at list.coin-or.org> Date: Wed, 13 Feb 2008 12:00:03 -0500>> Send Ipopt mailing list submissions to> 	ipopt at list.coin-or.org>> To subscribe or unsubscribe via the World Wide Web, visit> 	http://list.coin-or.org/mailman/listinfo/ipopt>
 or, via email, send a message with subject or body 'help' to> 	ipopt-request at list.coin-or.org>> You can reach the person managing the list at> 	ipopt-owner at list.coin-or.org>> When replying, please edit your Subject line so it is more specific> than "Re: Contents of Ipopt digest...">>> Today's Topics:>>    1. Re: Ipopt Digest, Vol 38, Issue 6 (ZhangWeizhong)>>> ---------------------------------------------------------------------->> Message: 1> Date: Tue, 12 Feb 2008 17:25:35 -0500> From: ZhangWeizhong > Subject: Re: [Ipopt] Ipopt Digest, Vol 38, Issue 6> To: > Message-ID: > Content-Type: text/plain; charset="gb2312">>> Hi, all>      Thank Dr Andreas for making it clear about "Hessian approximation".>      And I have used valgrind to test my program.>>      The errors are >      "Conditional jump or move depends on uninitialised value(s)">      "Use of uninitialised value of size 4".>      "Too few degrees of freedom (n_x = 0, n_c = 104). Trying fixed_variable_treatment = RELAX_BOUNDS">>      My program is modified from "MyExample" from IPOPT package>      The main program is  "dmocexample.cpp", in which it call mynlp(mynlp= new DMOC_NLP();)>>      The program which defines the methods such as get_nlp_info()  is called dmoc_nlp.cpp>     >     My question is>    " Can I initialize the variables  before "constructor" , "destructtor" and the methods in dmoc_nlp.cpp?">     Or I have to initialize the variables in different functions like "get_nlp_info()" and so on?>>     It seems that I can not define the global variables in the main program"dmocexample.cpp" so that I do not have to define them in the "dmoc_nlp.cpp".  And even I initialized variables in "dmoc_nlp.cpp" outsides of the functions, it seems it is not successfully initialized.>>     Anyone can give some suggestions? Thank you so much.>                                                                            Weizhong Zhang>                                                                            Electrical and Computer Engieering Dept>                
                                                            University of Louisville            >    >   >      >     >>>> ---------------------------------------->> From: ipopt-request at list.coin-or.org>> Subject: Ipopt Digest, Vol 38, Issue 6>> To: ipopt at list.coin-or.org>> Date: Mon, 11 Feb 2008 12:00:02 -0500>>>> Send Ipopt mailing list submissions to>> 	ipopt at list.coin-or.org>>>> To subscribe or unsubscribe via the World Wide Web, visit>> 	http://list.coin-or.org/mailman/listinfo/ipopt>> or, via email, send a message with subject or body 'help' to>> 	ipopt-request at list.coin-or.org>>>> You can reach the person managing the list at>> 	ipopt-owner at list.coin-or.org>>>> When replying, please edit your Subject line so it is more specific>> than "Re: Contents of Ipopt digest...">>>>>> Today's Topics:>>>>    1. Re: [Coin-ipopt] FW: Help on "Hessian Approximation" of my>>       optimization problem (Andreas Waechter)>>>>>> ---------------------------------------------------------------------->>>> Message: 1>> Date: Mon, 11 Feb 2008 11:01:45 -0500 (EST)>> From: Andreas Waechter>> Subject: Re: [Ipopt] [Coin-ipopt] FW: Help on "Hessian Approximation">> 	of my optimization problem>> To: ZhangWeizhong>> Cc: coin-ipopt at list.coin-or.org>> Message-ID:>> Content-Type: text/plain; charset="x-unknown">>>> Hi,>>>> It is correct that you don't need to overload the bool eval_h function if>> you want to use the quasi-Newton option of Ipopt.>>>> But you should not change the argument list for the get_nlp_info function>> - if you do that, the Ipopt code will still try to call the original>> function, and as you saw, this doesn't work since this is then a pure>> virtual function, and you can't run the program.  Just set nnz_h_lag to>> zero in your implementation of the original method of TNLP.>>>> As for the segmentation fault, it probably means that there is something>> wrong in the way you call Ipopt.  The easiest way to debug such memory>> problems is to use a memory checker, such as the free valgrind program for>> Linux.>>>> Regard
s,>>>> Andreas>>>>>> On Thu, 7 Feb 2008, ZhangWeizhong wrote:>>>>>>>>     Sorry, I forgot the detailed information>>>     IPOPT version: 3.3.3>>>     My computer is i686 2.6.20-16-generic, ubuntu 7.10>>>>>>>>> From: greatzwz at hotmail.comTo: greatzwz at hotmail.comSubject: Help on>>> "Hessian Approximation" of my optimization problemDate: Wed, 6 Feb 2008>>> 16:29:04 -0500>>>>>>>>> Hi, friends:  Sorry to bother you.  I have one problem regarding>>> "Hessian Approximation" in IPOPT application.  In the main program, the>>> option is configured as "app->Options()->>> SetStringValue("hessian_approximation","limited-memory")".  It is>>> indicated in the menu, I do not have to implement "bool eval_h()", so I>>> commented it out in my_program.cpp and my_program.hpp.  Then my program>>> can be compiled successfully, however the resulted executable program is>>> not working, the error message is "Segmentation fault(core dumped)".  I>>> thought maybe that I did not provide the hessian informationin the>>> method "get_nlp_info(.... Index&nnz_h_lag...)". Thus I commented this>>> parameter out in my_program.cpp and my_program.hpp correspondingly.>>> Afterwards, I compiled the program. It still is successfully compiled.>>> Now when I execute it, the error message is "pure virtual method called>>> terminate called without an active exception"  I have searched the>>> websit! e, it seems all the methods I used did not include itself or>>> other methods which are not defined previously.Thus I do not know why>>> the error indicates "pure virtual method called".  If anybody can help,>>> I would appreciate that.  Thank you so much.  Weizhong Zhang> Subject:>>> Welcome to the "Coin-ipopt" mailing list (Digest mode)> From:>>> coin-ipopt-request at list.coin-or.org> To: greatzwz at hotmail.com> Date:>>> Wed, 6 Feb 2008 16:09:16 -0500>> Welcome to the>>> Coin-ipopt at list.coin-or.org mailing list!>> To post to this list, send>>> your email to:>> coin-ipopt at list.coin-or.org>> General information>>> about the mailing list is at:>>>>> http://list.coin-
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