Sunday, September 24

Algebraic Multilevel Approaches to Solving Difficult PDE Problems

10:30 AM-12:30 PM
Mt. Vernon

A modern trend is toward solving complicated physical problems on large unstructured grids. Fast and efficient multigrid methods are attractive for many problems; however, the use of unstructured grids makes writing multigrid solvers tedious and difficult. Algebraic multigrid (AMG) uses only the basic information of the problem (but not geometry) to devise coarsening schemes and operators that give multigrid-like performance in a wide variety of settings. This minisymposium highlights the state-of-the-art in AMG research. Speakers from four of the most active AMG research centers describe new trends in AMG methodology, including parallel implementation, finite-element based AMG, and smoothed agglomeration methods.

Organizer: Van Emden Henson
Lawrence Livermore National Laboratory, USA
10:30-10:55 Recent Progress in the Development of Algebraic Multigrid
Klaus Stueben, GMD/SCAI, Germany
11:00-11:25 Algebraic Multigrid for Finite Element Problems (AMGe)
Jim E. Jones, Lawrence Livermore National Laboratory, USA
11:30-11:55 AMG for Singular Perturbation Problems
Marian Brezina, University of Colorado, Boulder, USA
12:00-12:25 PEBBLES - A Parallel Algebraic Multigrid Library
Gundolf Haase, Michael Kuhn, and Stefan Reitzinger, Johannes Kepler University Linz, Austria

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