On selections of constraints for the BDDC method

0352463 - MÚ 2011 RIV CZ eng C - Conference Paper (international conference)
Čertíková, M. - Šístek, Jakub - Novotný, J. - Burda, P.
On selections of constraints for the BDDC method.
Proceedings of International Conference Presentation of Mathematics '09. Liberec: Technická univerzita v Liberci, 2010 - (Feuerstein, E.; Segeth, K.; Andrejsová, D.), s. 33-41. ISBN 978-80-7372-578-5.
[International conference Presentation of mathematics '09. Liberec (CZ), 14.09.2009-16.09.2009]
Institutional research plan: CEZ:AV0Z10190503
Keywords : BDDC * domain decomposition * iterative substructuring * parallel computing
Subject RIV: BA - General Mathematics

The Balancing Domain Decomposition by Constraints (BDDC) method is an iterative substructuring domain decomposition method which uses a coarse space. The choice of coarse constraints on continuity has strong influence on convergence of the method. The goal of this paper is to compare the performance of several algorithms for selection of the coarse constraints applied to both test and industrial 3D linear elasticity problems and confront results obtained for typical test problems with results for industrial problems.
Permanent Link: http://hdl.handle.net/11104/0191966