[Ipopt] Ipopt terminates

[Stefan Vigerske]

Hi,

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
http://www.coin-or.org/Ipopt/documentation/node89.html
which may help to verify this.

Stefan

> 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
http://www.math.hu-berlin.de/~stefan