Title :
Combining the LEAP preconditioner with FETI-DP
Author :
Paraschos, Georgios N. ; Vouvakis, Marinos N.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Massachusetts, Amherst, MA, USA
Abstract :
The newly introduced Locally Exact Algebraic Preconditioner (LEAP) is combined with the well established FETI-DP method to provide robust and scalable iterative convergence. This is achieved by adopting a single-level version of LEAP, sufficient to deduce scalable results due to treatment of domain-edges by FETI-DP. It is experimentally shown that the LEAP can significantly improve the order of convergence of FETI-DP to make it more efficient and robust.
Keywords :
algebra; finite element analysis; FETI-DP method; LEAP preconditioner; dual-primal FETI; finite element tearing and interconnecting; locally exact algebraic preconditioner; robust iterative convergence; scalable iterative convergence; Antennas; Convergence; Electromagnetics; Finite element methods; History; Robustness; Scalability;
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.2012.6349136
