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<p class="MsoNormal">Hi,<o:p></o:p></p>
<p class="MsoNormal">Any help on the below.<o:p></o:p></p>
<p class="MsoNormal">Why the access violation happens when changing the options parameters?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks,<o:p></o:p></p>
<p class="MsoNormal">Bilal<o:p></o:p></p>
<p class="MsoNormal"><a name="_MailEndCompose"><o:p> </o:p></a></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="mso-fareast-language:EN-GB">From:</span></b><span lang="EN-US" style="mso-fareast-language:EN-GB"> Ipopt [mailto:ipopt-bounces@coin-or.org]
<b>On Behalf Of </b>Bilal Nasser<br>
<b>Sent:</b> 15 August 2016 10:37<br>
<b>To:</b> ipopt@list.coin-or.org<br>
<b>Subject:</b> [Ipopt] access violation error<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Hi, <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I am receiving different results in the Ipopt c++ from the Matlab optimiser.<o:p></o:p></p>
<p class="MsoNormal">I tried to modify the options in order to reduce the tolerance and make it adaptive, but it is throwing a System.AccessViolationException error<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">app->Options()->SetNumericValue(</span><span style="font-size:9.5pt;font-family:Consolas;color:#A31515;background:white;mso-highlight:white">"tol"</span><span style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">,
1e-7);<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">app->Options()->SetStringValue(</span><span style="font-size:9.5pt;font-family:Consolas;color:#A31515;background:white;mso-highlight:white">"mu_strategy"</span><span style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">,
</span><span style="font-size:9.5pt;font-family:Consolas;color:#A31515;background:white;mso-highlight:white">"adaptive"</span><span style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white">);</span><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-GB">Also, is there an option to define the algorithm to be ‘active-set’ or ‘SQP’?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-GB">I am using the latest generated dll Ipopt-3.11.0 from the site.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-GB">Thanks for your help,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri Light",sans-serif;mso-fareast-language:EN-GB">Bilal</span><o:p></o:p></p>
<pre><o:p> </o:p></pre>
<pre><o:p> </o:p></pre>
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<PRE>
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Please do not use, copy or disclose the information contained in this
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University of Nottingham.
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