Benchmarking Open Cardiac Electrophysiology Simulators: MonoAlg3D and OpenCARP

Lucas Marins de Lima1, Rafael Sachetto Oliveira2, Fernando Campos3, Lucas Arantes Berg4, Joventino de Oliveira Campos5, Rodrigo Weber dos Santos5
1Universidade Federal de Juiz de Fora, 2Univerisidade Federal de S�o Jo�o del-Rei, 3School of Biomedical Engineering and Imaging Sciences, King's College London, 4University of Oxford, 5Federal University of Juiz de Fora

Abstract

This study benchmarks two open-source cardiac simulators, MonoAlg3D (GPU) and openCARP (MPI), across scenarios of increasing complexity. Despite producing numerically congruent results, their performance profiles revealed distinct architectural strengths. MonoAlg3D on a single GPU demonstrated a computational efficiency comparable to openCARP when parallelized across many CPU cores. These findings highlight two distinct parallelization paradigms: MonoAlg3D is optimized for high-throughput simulations on single GPU nodes, while openCARP is designed for large-scale distributed computing on HPC clusters.