This document discusses using COMSOL Multiphysics software for simulation and development on computer clusters. COMSOL Multiphysics allows users to build virtual prototypes through multiphysics modeling and simulation. It is well-suited for research and development applications where virtual prototyping can save time and money compared to physical testing. COMSOL supports parallel computing on computer clusters which enables larger simulations and parametric sweeps for applications such as design optimization. The document provides an example live demo of using COMSOL to optimize the frequency of a balanced patch antenna through a parametric sweep on a computer cluster.