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Parallel overlapping Schwarz with an energy-minimizing coarse space

Conference Paper (2017)
Author(s)

Alexander Heinlein (Universität zu Köln)

Axel Klawonn (Universität zu Köln)

Oliver Rheinbach (University of Technology Bergakademie Freiberg)

Affiliation
External organisation
DOI related publication
https://doi.org/10.1007/978-3-319-52389-7_36 Final published version
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Publication Year
2017
Language
English
Affiliation
External organisation
Pages (from-to)
353-360
Publisher
Springer
ISBN (print)
9783319523880
Event
23rd International Conference on Domain Decomposition Methods, DD23 (2015-07-06 - 2015-07-10), Jeju Island, Korea, Republic of
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136

Abstract

Parallel results obtained with a new implementation of an overlapping Schwarz method using an energy minimizing coarse space are presented. We consider structured and unstructured domain decompositions for scalar elliptic and linear elasticity model problems in two dimensions. In particular, strong and weak parallel scalability studies for up to 1024 processor cores are presented for both types of problems. Additionally, weak scalability results for a three-dimensional linear elasticity model problem using up to 4096 processor cores are discussed. Finally, an application from fully-coupled fluid-structure interaction using a nonlinear hyperelastic material model for the structure is shown.