Adaptive BDDC in three dimensions

Jan Mandel, Bedřich Sousedík and Jakub Šístek

Mathematics and Computers in Simulation (MATCOM), 2012, vol. 82, issue 10, 1812-1831

Abstract: The adaptive BDDC method is extended to the selection of face constraints in three dimensions. A new implementation of the BDDC method is presented based on a global formulation without an explicit coarse problem, with massive parallelism provided by a multifrontal solver. Constraints are implemented by a projection and sparsity of the projected operator is preserved by a generalized change of variables. The effectiveness of the method is illustrated on several engineering problems.

Keywords: Parallel algorithms; Domain decomposition; Iterative substructuring; BDDC; Adaptive constraints (search for similar items in EconPapers)
Date: 2012
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Persistent link: https://EconPapers.repec.org/RePEc:eee:matcom:v:82:y:2012:i:10:p:1812-1831

DOI: 10.1016/j.matcom.2011.03.014

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