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csu-hmc / opty

A library for using direct collocation in the optimization of dynamic systems.
http://opty.readthedocs.io
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Question #146

Closed Peter230655 closed 5 months ago

Peter230655 commented 5 months ago

When I run opty, I sometimes get this message: b'Algorithm stopped at a point that was converged, not to "desired" tolerances, but to "acceptable" tolerances (see the acceptable-... options).' From my observations playing arounbd with opty, this seems to be good enough. Still, out of curiosity I have these questions: 1. How is converging defined with opty? 2. What is the difference between desired and acceptable? 3. Where do I find acceptable....options.

Thanks for any help!

tjstienstra commented 5 months ago

I don't know the details by heart, but I'm pretty sure opty uses the IPOPT defaults, so I guess that you can find the answers in the IPOPT documentation.

Peter230655 commented 5 months ago

Thanks!! let me try and look there.