Benchmarking a derivative-free minimax optimizer for EM design

Leszek J. Opalski

doi:10.1117/12.2000051

15 October 2012 Benchmarking a derivative-free minimax optimizer for EM design

Leszek J. Opalski

Proceedings Volume 8454, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2012; 84541H (2012) https://doi.org/10.1117/12.2000051
Event: Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2012, 2012, Wilga, Poland

Abstract

The paper presents a model-based derivative-free minimax optimizer and a benchmarking methodology. The optimizer is dedicated to such simulation-based design scenarios, when a single simulation is time-consuming and not very accurate, and so when fast improvement of design is expected rather then high accuracy optimization. A benchmarking methodology is formulated to compare efficiency of optimizers in such scenarios. A set of electromagnetic (EM) designs, for which a design simulation involves solution of very large partial differential equations, is used to exemplify the methodology. Presented results demonstrate how accuracy requirements and computational budget change ranking of optimizers. The proposed optimizer is shown to provide competetively rapid and reliable initial design improvement for modest 5-10% tolerance, but for higher accuracy demands and larger computational budget other solvers become more competitive.

Citation Download Citation

Leszek J. Opalski "Benchmarking a derivative-free minimax optimizer for EM design", Proc. SPIE 8454, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2012, 84541H (15 October 2012); https://doi.org/10.1117/12.2000051

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