Voltar
Artigo Acesso aberto Revisado por pares
BIBTEX RIS

New multigrid solver advances in TOPS

2005; IOP Publishing; Volume: 16; Linguagem: Inglês

10.1088/1742-6596/16/1/061

ISSN

1742-6596

Autores

Robert D. Falgout, James Brannick, Marian Brezina, Thomas A. Manteuffel, Steve McCormick,

Tópico(s)

Advanced Numerical Methods in Computational Mathematics

Resumo

In this paper, we highlight new multigrid solver advances in the Terascale Optimal PDE Simulations (TOPS) project in the Scientific Discovery Through Advanced Computing (SciDAC) program. We discuss two new algebraic multigrid (AMG) developments in TOPS: the adaptive smoothed aggregation method (αSA) and a coarse-grid selection algorithm based on compatible relaxation (CR). The αSA method is showing promising results in initial studies for Quantum Chromodynamics (QCD) applications. The CR method has the potential to greatly improve the applicability of AMG.

Referência(s)