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Objective Function Gradient Components in Optimization Module

Posted 22 mai 2013, 10:49 UTC−4 Optimization Version 4.2a 0 Replies

Johannes Ullrich
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Hi,
I'm using the Optimization Module with V4.2a to run a parameter estimation on a time dependent model.
The error output for the Levenberg-Marquardt algorithm doesn't reflect the convergence of the objective function making the optimality tolerance useless.
I'd like to have a look at the gradient components of the objective function with respect to the different Control Variables because the error estimation is based on them.
Unfortunately I haven't found them as accessible variables, only the objective function itself.
Is there any way of getting them?

Regards,
Johannes
0 Replies Last Post 22 mai 2013, 10:49 UTC−4
COMSOL Moderator

Hello Johannes Ullrich

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