FROSch: A Fast And Robust Overlapping Schwarz Domain Decomposition Preconditioner Based on Xpetra in Trilinos

Alexander Heinlein*, Axel Klawonn, Sivasankaran Rajamanickam, Oliver Rheinbach

*Corresponding author for this work

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

6 Citations (Scopus)

Abstract

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.

Original languageEnglish
Title of host publicationDomain Decomposition Methods in Science and Engineering XXV, DD 2018
EditorsRonald Haynes, Scott MacLachlan, Xiao-Chuan Cai, Laurence Halpern, Hyea Hyun Kim, Axel Klawonn, Olof Widlund
PublisherSpringer
Pages176-184
Number of pages9
ISBN (Print)9783030567491
DOIs
Publication statusPublished - 2020
Externally publishedYes
Event25th International Conference on Domain Decomposition Methods in Science and Engineering, DD 2018 - St. John's, Canada
Duration: 23 Jul 201827 Jul 2018

Publication series

NameLecture Notes in Computational Science and Engineering
Volume138
ISSN (Print)1439-7358
ISSN (Electronic)2197-7100

Conference

Conference25th International Conference on Domain Decomposition Methods in Science and Engineering, DD 2018
Country/TerritoryCanada
CitySt. John's
Period23/07/1827/07/18

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