Application of the parallel BDDC preconditioner to the Stokes flow

Application of the parallel BDDC preconditioner to the Stokes flow

A parallel implementation of the Balancing Domain Decomposition by Constraints (BDDC) method is described. It is based on formulation of BDDC with global matrices without explicit coarse problem. The implementation is based on the MUMPS parallel solver for computing the approximate inverse used for...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Computers & fluids 2011-07, Vol.46 (1), p.429-435
Hauptverfasser: Šístek, Jakub, Sousedík, Bedřich, Burda, Pavel, Mandel, Jan, Novotný, Jaroslav
Format: Artikel
Sprache:eng
Schlagworte:
Approximation
BDDC
Computational fluid dynamics
Domain decomposition
Fluid flow
Inverse
Iterative substructuring
Mathematical analysis
Preconditioning
Solvers
Stokes flow
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:A parallel implementation of the Balancing Domain Decomposition by Constraints (BDDC) method is described. It is based on formulation of BDDC with global matrices without explicit coarse problem. The implementation is based on the MUMPS parallel solver for computing the approximate inverse used for preconditioning. It is successfully applied to several problems of Stokes flow discretized by Taylor–Hood finite elements and BDDC is shown to be a promising method also for this class of problems.
ISSN:0045-7930
1879-0747
DOI:10.1016/j.compfluid.2011.01.002