New multigrid solver advances in TOPS

R. D. Falgout, J. Brannick, M. Brezina, T. Manteuffel, S. McCormick

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Abstract

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.

Original languageEnglish (US)
Pages (from-to)456-460
Number of pages5
JournalJournal of Physics: Conference Series
Volume16
Issue number1
DOIs
Publication statusPublished - Jan 1 2005

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Falgout, R. D., Brannick, J., Brezina, M., Manteuffel, T., & McCormick, S. (2005). New multigrid solver advances in TOPS. Journal of Physics: Conference Series, 16(1), 456-460. https://doi.org/10.1088/1742-6596/16/1/061