Parallel multiphase field simulations with OpenPhase

Published: 10-02-2017| Version 1 | DOI: 10.17632/2mnv2fvkkk.1
Marvin Tegeler,
Oleg Shchyglo,
Reza Darvishi Kamachali,
Alexander Monas,
Ingo Steinbach,
Godehard Sutmann


The open-source software project OpenPhase allows the three-dimensional simulation of microstructural evolution using the multiphase field method. The core modules of OpenPhase and their implementation as well as their parallelization for a distributed-memory setting are presented. Especially communication and load-balancing strategies are discussed. Synchronization points are avoided by an increased halo-size, i.e. additional layers of ghost cells, which allow multiple stencil operations without data exchange. Load-balancing is considered via graph-partitioning and sub-domain decomposition. Results are presented for performance benchmarks as well as for a variety of applications, e.g. grain growth in polycrystalline materials, including a large number of phase fields as well as Mg-Al alloy solidification.