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<p class="MsoNormal">Dear all, <o:p></o:p></p>
<p class="MsoNormal">I´ve been working with Ipopt (GAMS) the last 2 years. Lately I am working on a very nonlinear nonconvex optimal control problem (around 45000 variables and 42000 constraints) and I am noticing that Ipopt converges after several iterations
(around 4000 or so). I was wondering if someone can give me an advice about how can I reduce the iterations. Currently, I’m using ma86 linear solver, mu_strategy adaptive and alpha_for_y safer-min-dual-infeas.
<o:p></o:p></p>
<p class="MsoNormal">Thanks in advance.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="ES-CO">Manuel Andrés Ramos Castillo<br>
Ingeniero Químico<br>
Asistente Graduado<br>
Departamento de Ingeniería Química<br>
Universidad de Los Andes<br>
Tel. 3394949 Ext. 1841<br>
Edificio Mario Laserna<br>
Oficina 751</span><span lang="ES-CO"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="ES-CO"><o:p> </o:p></span></p>
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