Title :
FETI-LEAP: Making domain decomposition robust
Author :
Paraschos, Georgios N. ; Vouvakis, Marinos N.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Massachusetts, Amherst, MA, USA
Abstract :
This paper outlines a robust, effective and efficient local preconditioning strategy for Domain Decomposition Methods (DDM) in electromagnetic computations. The multilevel preconditioner is constructed based on a hierarchy of small auxiliary problems on local topological entities. Eigenspectra and convergence history plots on different decomposition strategies showcase the effectiveness and robustness of the method.
Keywords :
algebra; computational electromagnetics; convergence; eigenvalues and eigenfunctions; topology; DDM; FETI-LEAP; convergence history plot; decomposition strategy; domain decomposition method; eigenspectra; electromagnetic computation; local preconditioning strategy; local topological entity; locally exact algebraic preconditioner; multilevel preconditioner; Antennas; Convergence; Electromagnetics; Finite element methods; Matrix decomposition; Robustness;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4673-0461-0
DOI :
10.1109/APS.2012.6348070
