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Ansys Learning Forum › Forums › Discuss Simulation › Photonics › Lumopt topology superoptimization not starting binarization phase › Reply To: Lumopt topology superoptimization not starting binarization phase

April 6, 2023 at 3:14 pm
a.adkins
Subscriber

The FOM behaves differently, it increases and converges to 0.5 (unlike the example with one FOM). I have tried increasing the number of iterations to a high number but the optimization always ends with the message

CONVERGENCE: REL_REDUCTION_OF_F_<=_FACTR*EPSMCH

Also, if I can ask another question, I am unable to run an optimization for an area larger than 5x5 um. I have tried many different mesh sizes but for any area larger than 5x5 it is unable to calculate the gradient. Do you have any suggestions for this?

Thank you

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