<div dir="ltr">Tony, <div><br></div><div>Thanks for your response. I am sure the problem is feasible because I have other scenarios running perfectly fine. I changed some concepts of my model and I got this infeasibility. Although the model is infeasible now, the trends that variables are making are quite reasonable (however I am not sure how reliable trends for an infeasible case can be). I am using zero for almost all of the initial values (as other feasible scenarios) but using other random initial values got me to " Converged to a point of local infeasibility. Problem may be infeasible." but no restoration failed error at the end of the output (however there is "r" next to the iteration number. The output of solver is attached. Do you have any further insight on what is going on? </div>
<div><br></div><div>Thanks</div></div><div class="gmail_extra"><br clear="all"><div><div dir="ltr"><i><font face="comic sans ms, sans-serif">Mostafa Safdarnejad</font></i></div></div>
<br><br><div class="gmail_quote">On Sat, Jul 19, 2014 at 3:58 PM, Tony Kelman <span dir="ltr"><<a href="mailto:kelman@berkeley.edu" target="_blank">kelman@berkeley.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 .8ex;border-left:1px #ccc solid;border-right:1px #ccc solid;padding-left:1ex;padding-right:1ex">
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<div>Essentially this means Ipopt had difficulty obtaining a feasible point for
your problem. Are you sure your problem is feasible? Would it be possible for
you to calculate a better initial starting point for the optimization?</div>
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<div><b>From:</b> <a title="mostafa.safdarnejad@gmail.com" href="mailto:mostafa.safdarnejad@gmail.com" target="_blank">Mostafa Safdarnejad</a> </div>
<div><b>Sent:</b> Friday, July 18, 2014 11:55 AM</div>
<div><b>To:</b> <a title="ipopt@list.coin-or.org" href="mailto:ipopt@list.coin-or.org" target="_blank">ipopt@list.coin-or.org</a> </div>
<div><b>Subject:</b> [Ipopt] Fwd: help for restoration failure</div></div></div>
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<div dir="ltr">Hi, I am using IPOPT solver for a NLP optimization and I got an
infeasibility error due to restoration failure (attached file). I am not
familiar with programming in IPOPT. So, I would appreciate if anyone can help me
with specific details on how to fix it? I am using APMonitor modeling language
and Matlab as my interface to run.
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<div>Thanks</div>
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