[Coin-ipopt] derivative checker

Liliya Kharevych lilyukma at yahoo.com
Sun Dec 30 20:51:03 EST 2007


I am trying to use derivative_test option (with Ipopt 3.3.3 compliled for VS8), and whenever it does derivative test, instead of using my starting point, it uses values which are very far away from the starting point, but still are some reasonable numbers. When the solve is starting it uses the correct values. I tried to both set and not set derivative_test_perturbation option but it does not seem to change anything. Is there are another way to give starting point for derivative checker?

Another problem is that whenever I try to destroy the class that inherits TNLP, my program crashes somewhere in Ipopt. Do you think this happens because SmartPtr<IpoptApplication> is a member of that class, or for some other reason? 

Thank you, 

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