Constraint preconditioners have proved very effi cient for the solution of ill-conditioned FE coupled consolidation problems on sequential computers. Their implementation on parallel computers, however, is not straightforward because of their inherent sequentiality. The present paper describes a novel Parallel Inexact Constraint Preconditioner (ParICP) based on the use of the BFSAI-IC preconditioner. The ParICP performance is experimented with in a large size FE coupled consolidation problem arising from a real geomechanical application, proving a scalable, efficient and very robust implementation of constraint preconditioning for high performance computing.

A novel parallel preconditioner for ill-conditioned FE consolidation problems

FERRONATO, MASSIMILIANO;JANNA, CARLO;GAMBOLATI, GIUSEPPE
2011

Abstract

Constraint preconditioners have proved very effi cient for the solution of ill-conditioned FE coupled consolidation problems on sequential computers. Their implementation on parallel computers, however, is not straightforward because of their inherent sequentiality. The present paper describes a novel Parallel Inexact Constraint Preconditioner (ParICP) based on the use of the BFSAI-IC preconditioner. The ParICP performance is experimented with in a large size FE coupled consolidation problem arising from a real geomechanical application, proving a scalable, efficient and very robust implementation of constraint preconditioning for high performance computing.
2011
Computer Methods for Geomechanics: Frontiers and New Applications
Conference of the International Association for Computer Methods and Advances in Geomechanics
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11577/2473928
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