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A closer look at local eigenvalue solvers for adaptive FETI-DP and BDDC

Klawonn, Axel and Kühn, Martin Joachim and Rheinbach, Oliver (2020) A closer look at local eigenvalue solvers for adaptive FETI-DP and BDDC. In: Domain Decomposition Methods in Science and Engineering XXV. The twenty-fifth international domain decomposition conference, St. Johns, Newfoundland, Canada.

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Abstract

Adaptive coarse spaces for domain decomposition methods are an active area of research to make iterative domain decomposition methods robust with respect to large discontinuities in the material parameters or almost incompressible elasticity. In order to make their use feasible for applications, the computational overhead of the adaptive methods has to be reduced while maintaining the robustness. Since the solution of the local eigenvalue problems is expensive, the iterative eigenvalue solvers are also considered in detail and potential improvements are presented.

Item URL in elib:https://elib.dlr.de/138674/
Document Type:Conference or Workshop Item (Lecture)
Title:A closer look at local eigenvalue solvers for adaptive FETI-DP and BDDC
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Klawonn, Axelaxel.klawonn (at) uni-koeln.deUNSPECIFIED
Kühn, Martin JoachimMartin.Kuehn (at) dlr.dehttps://orcid.org/0000-0002-0906-6984
Rheinbach, Oliveroliver.rheinbach (at) math.tu-freiberg.deUNSPECIFIED
Date:25 October 2020
Journal or Publication Title:Domain Decomposition Methods in Science and Engineering XXV
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Status:Published
Keywords:Domain decomposition, linear systems, solver, preconditioning, composite materials
Event Title:The twenty-fifth international domain decomposition conference
Event Location:St. Johns, Newfoundland, Canada
Event Type:international Conference
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space System Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Space System Technology
DLR - Research theme (Project):R - Vorhaben SISTEC (old)
Location: Köln-Porz
Institutes and Institutions:Institute for Software Technology
Institute for Software Technology > High-Performance Computing
Deposited By: Kühn, Martin Joachim
Deposited On:07 Dec 2020 09:52
Last Modified:11 Dec 2020 10:47

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