2020 | OriginalPaper | Chapter
FROSch: A Fast And Robust Overlapping Schwarz Domain Decomposition Preconditioner Based on Xpetra in Trilinos
Authors : Alexander Heinlein, Axel Klawonn, Sivasankaran Rajamanickam, Oliver Rheinbach
Published in: Domain Decomposition Methods in Science and Engineering XXV
Publisher: Springer International Publishing
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This article describes a parallel implementation of a two-level overlapping Schwarz preconditioner with the GDSW (Generalized Dryja–Smith–Widlund) coarse space described in previous work [12, 10, 15] into the Trilinos framework; cf. [16]. The software is a significant improvement of a previous implementation [12]; see Sec. 4 for results on the improved performance.