Adaptive and flexible macro micro coupling software (Ishaan Desai, preCICE Workshop 2022)
Channel: preCICE Coupling
Date: 2022-12-02

Pre-recorded talk for the 3rd preCICE Workshop, February 21-24, 2022, organized by the University of Stuttgart (online). https://precice.org/precice-workshop-2022.html

Authors: Ishaan Desai
Affiliation: University of Stuttgart, Germany

For many challenging applications in simulation technology, micro-scale phenomena often dominates macro-scale behavior. We present a novel software and algorithm framework called the Micro Manager to couple existing micro-scale and macro-scale simulation programs in a black-box fashion. The Micro Manager calls all micro-scale simulations as libraries and it is itself coupled to the macro-scale simulation using preCICE. Using results of parallel simulations we show that adaptive initialization of micro simulations is critical. Load balancing strategies in the context of adaptive macro-micro coupled simulations are also shown. The working of the Micro Manager is demonstrated using a two-scale porous media application. Application of the Micro Manager in two-scale simulations in the field of human body modeling are also discussed.