<div dir="ltr"><div>ciao Roberto,<br> you could also use a tool like valgrind to check that your algorithm doesn't have any memory problem.<br><br></div>/Antonello<br></div><div class="gmail_extra"><br><br><div class="gmail_quote">
2014/1/7 Roberto Verdelli <span dir="ltr"><<a href="mailto:roberto.verdelli@techedgegroup.com" target="_blank">roberto.verdelli@techedgegroup.com</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr"><div>Scenario: c++ code.<br>Whenever I run my optimization problem with the same inputs, by double clicking the executable twice or more, I get the exact same output every time. That's logical because the algorithm is deterministic.<br>
<br></div><div><div><div><div><div><div>The weird thing is that if I wrap my code in a loop that solves twice the same exact problem I get two different results. (in terms of number of iterations and value of the figure of merit)<br>
</div><div>I checked and there's no persistent variable that could hold some result of the previous iteration.<br></div><div><br></div><div>I guess the problem is related to the primal/dual infeasibility problem because, checking the verbose output, I see the divergence of the two solutions start as soon as the P/D infeasibility problem is solved for the first time (first iteration).<br>
<br></div><div>Should this happen or should I double check for some persistent data that is shared between iterations? (I'm pretty sure there's no such data)<br></div><div><br>Does IpOpt keep in memory something of the previous run? Is there a way to clear this data?<br>
<br></div><div>Thanks for your help.<span class="HOEnZb"><font color="#888888"><br></font></span></div><span class="HOEnZb"><font color="#888888"><div>Roberto.<br>
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<br></blockquote></div><br><br clear="all"><br>-- <br><div dir="ltr">Antonello Lobianco<br>AgroParisTech, Laboratoire d'Economie Forestière<br>14 Rue Girardet - 54000 Nancy, France<br>Tel: +33.383396865<br>Email: <a href="mailto:antonello.lobianco@nancy.inra.fr" target="_blank">antonello.lobianco@nancy.inra.fr</a><br>
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