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<DIV>I think you’ll have to provide some simple example code of what you’re
trying to do, and the error message in its entirety, for anyone to be able to
tell exactly where the problem lies.</DIV>
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<DIV style="font-color: black"><B>From:</B> <A title=rameshul@mail.uc.edu
href="mailto:rameshul@mail.uc.edu">Ramesh, Ujwal (rameshul)</A> </DIV>
<DIV><B>Sent:</B> Wednesday, October 29, 2014 11:39 AM</DIV>
<DIV><B>To:</B> <A title=bonmin@list.coin-or.org
href="mailto:bonmin@list.coin-or.org">bonmin@list.coin-or.org</A> </DIV>
<DIV><B>Subject:</B> [Bonmin] Unconstrained MINLP</DIV></DIV></DIV>
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<P>Hi All,</P>
<P> </P>
<P>I am trying to run Bonmin for my application which is an unconstrained MINLP.
I am calling Bonmin through a C++ interface. </P>
<P> </P>
<P>To invoke Bonmin, I need to define a few virtual functions inm y code. </P>
<P> </P>
<P>As my application is an unconstrained MINLP, I will not be defining the
constraint variables, constraint functions,function to compute jacobian and the
function to compute the hessian of the <SPAN class=st>Lagrangean ( eval_g,
eval_jac_g,eval_h etc. ).</SPAN></P>
<P><BR><SPAN class=st></SPAN></P>
<P>By not defining the above function I am initializing the respective vectors,
matrices and the variables (number of non zeros in jacobian and hessian ) to
NULL but this is causing the solver to fail with a length error.</P>
<P> </P>
<P>I am a rookie to optimization and any inputs as to what I am missing is much
appreciated. I guess I am missing something conceptually as I have double
checked syntactical/logical correctness of code. </P>
<P> </P>
<P>Thanks a lot in advance.</P>
<P> </P>
<P>Regards,</P>
<DIV id=Signature>
<DIV style="FONT-SIZE: 13px; FONT-FAMILY: tahoma"><FONT size=4
face=Verdana>Ujwal Ramesh</FONT>
<DIV><FONT size=2 face=Verdana>Graduate Student,</FONT></DIV>
<DIV><FONT size=2 face=Verdana>University Of Cincinnati</FONT></DIV>
<DIV><FONT size=2 face=Verdana>Ph: +1-513-302-4771</FONT></DIV></DIV></DIV>
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