ICAMS / Interdisciplinary Centre for Advanced Materials Simulation
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Massively parallel multiphase field simulations

M. Tegeler.

PhD Thesis, Ruhr-Universität Bochum (2017)

Schematic overview of a fat-tree architecture

Abstract
The multiphase field method is a commonly used tool to simulate the evolution of microstructure during materials processing. Even when using a concept called active parameter tracking, which substantially reduces the computational complexity, the resource demands of the multiphase field method remain significant in both time and memory. A hybrid-parallelization is presented and two different load-balancing schemes are described and compared. Results are presented for performance benchmarks as well as for a variety of applications, including grain growth in polycrystalline materials with hundreds of thousands of different phase fields and Mg-Al alloy solidification. In addition a way of utilizing the multiphase field method is shown that allows the construction of microstructures with a given grain size distribution.


Cite as: https://nbn-resolving.org/urn:nbn:de:hbz:294-61666
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