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Parallel multiphase field simulations with OpenPhase
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DOI：10.1016/j.cpc.2017.01.023.png)
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Abstract
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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. (C) 2017 Elsevier B.V. All rights reserved.
Keywords:
Material science
Phase field
Parallel computing
Load-balancing
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