MiMiC is a flexible and efficient framework for multiscale simulations in which different subsystems are treated by individual client programs. In this work, we present a new interface with OpenMM to be used as an MM client program and we demonstrate its efficiency for QM/MM MD simulations. Apart from its high performance, especially on GPUs, and a wide selection of features, OpenMM is a highly-flexible and easily-extensible program, ideal for the development of novel multiscale methods. Thanks to the open-ended design of MiMiC, the OpenMM-MiMiC interface will automatically support any new QM client program interfaced with MiMiC for QM/MM and, with minimal changes needed, new multiscale methods implemented, opening up new research directions beyond electrostatic embedding QM/MM.
@article{arxiv.2502.06539,
title = {OpenMM-MiMiC Interface for Efficient and Flexible Multiscale Simulations},
author = {Andrea Levy and Andrej Antalík and Jógvan Magnus Haugaard Olsen and Ursula Rothlisberger},
journal= {arXiv preprint arXiv:2502.06539},
year = {2025}
}