New Multigrid Solver Advances in TOPS

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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 ({alpha}SA) and a coarse-grid selection algorithm based on compatible relaxation (CR). The {alpha}SA 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.

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PDF-file: 7 pages; size: 0.7 Mbytes

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Falgout, R D; Brannick, J; Brezina, M; Manteuffel, T & McCormick, S June 27, 2005.

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Description

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 ({alpha}SA) and a coarse-grid selection algorithm based on compatible relaxation (CR). The {alpha}SA 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.

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PDF-file: 7 pages; size: 0.7 Mbytes

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  • Presented at: SciDAC 2005 PI Meeting, San Francisco, CA, United States, Jun 27 - Jun 30, 2005

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  • Report No.: UCRL-PROC-213270
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 877775
  • Archival Resource Key: ark:/67531/metadc877468

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  • June 27, 2005

Added to The UNT Digital Library

  • Sept. 21, 2016, 2:29 a.m.

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  • Nov. 30, 2016, 12:56 p.m.

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Falgout, R D; Brannick, J; Brezina, M; Manteuffel, T & McCormick, S. New Multigrid Solver Advances in TOPS, article, June 27, 2005; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc877468/: accessed August 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.