Hi all,<br><br>I've been noticing that, sometimes, ipopt returns negative time values when using bonmin. I'm not sure where the error could be, but for example I sometimes get:<br><br>[ sniped output ...]<br>Number of Lagrangian Hessian evaluations = 135
<br>Total CPU secs in IPOPT (w/o function evaluations) = -267.789<br>Total CPU secs in NLP function evaluations = 548.166<br><br>EXIT: Optimal Solution Found.<br>IpOp0006I Ipopt return (for resolve): status 0, iter count 135, time
280.378<br>IpOp0009I 3 OPT 3095.02 135 280.378<br><br>I wish to properly report the time that the solver took, but I'm not sure if I should add the absolute values or if there really is a problem in the timing functions. Has anybody else seen this type of behavior? Any ideas?
<br><br>Thanks,<br> Rodrigo<br><br clear="all"><br>-- <br>Rodrigo López Negrete<br><a href="http://muon.blogdns.org/~rush/">http://muon.blogdns.org/~rush/</a>