[Ipopt] Ipopt terminates

Stefan Vigerske stefan at math.hu-berlin.de
Mon Mar 14 14:10:19 EDT 2011


it probably means that the jacobian or hessian contains values like nan
or inf, which may be a result from a nondifferentiability of one of your
functions in the current point.

There is the Ipopt option check_derivatives_for_naninf
which may help to verify this.


> I'm using ipopt with the matlab interface. So far everything went fine 
> and I had no problems. But now I have a problem, that can be solve with 
> matlab's fmincon but not with ipopt. When I run the problem with ipopt I 
> get the following error message
>  ** On entry to DPOTRF parameter number  4 had an illegal value
> I do not understand what this means.
> Paul
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Stefan Vigerske
Humboldt University Berlin, Numerical Mathematics

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