skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Graph based multilevel algorithms for preconditioning finite element problems

Conference ·
OSTI ID:15006492

This paper discusses: (1) A general block-factorization (matrix) form of multilevel preconditioners; algebraic methods; (2) Selecting parameters based on the matrix topology; graph based algorithms; (3) Examples of coarsening; (4) Numerical experiments.

Research Organization:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Organization:
US Department of Energy (US)
DOE Contract Number:
W-7405-ENG-48
OSTI ID:
15006492
Report Number(s):
UCRL-JC-137238; TRN: US200411%%233
Resource Relation:
Conference: 6th Copper Mountain Conference on Iterative Methods, Copper Mountain, CO (US), 04/05/2000; Other Information: PBD: 24 Mar 2000
Country of Publication:
United States
Language:
English

Similar Records

Performance of a parallel algebraic multilevel preconditioner for stabilized finite element semiconductor device modeling
Journal Article · Sun Sep 20 00:00:00 EDT 2009 · Journal of Computational Physics · OSTI ID:15006492

Performance of fully-coupled algebraic multilevel domain decomposition preconditioners for incompressible flow and transport.
Journal Article · Wed Dec 01 00:00:00 EST 2004 · Proposed for publication in International Journal for Numerical Methods in Engineering. · OSTI ID:15006492

Overlapping Schwarz for Nonlinear Problems. An Element Agglomeration Nonlinear Additive Schwarz Preconditioned Newton Method for Unstructured Finite Element Problems
Journal Article · Thu Feb 10 00:00:00 EST 2005 · Application of Mathematics, vol. 50, no. 3, July 12, 2005, pp. 247-275 · OSTI ID:15006492