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A Multilevel Algorithm for Spectral Partitioning with Extended Eigen-Models

  • Suely Oliveira
  • Takako Soma
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 1800)

Abstract

Parallel solution of irregular problems require solving the graph partitioning problem. The extended eigenproblem appears as the solution of some relaxed formulations of the graph partitioning problem. In this paper, a new subspace algorithm for the solving the extended eigenproblem is presented. The structure of this subspace method allows the incorporation of multigrid preconditioners. We numerically compare our new algorithm with a previous algorithm based on Lanczos iteration and show that our subspace algorithm performs better.

Keywords

Subspace Method Graph Partitioning Lanczos Algorithm Spectral Algorithm Multilevel Algorithm 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2000

Authors and Affiliations

  • Suely Oliveira
    • 1
  • Takako Soma
  1. 1.The Department of Computer ScienceThe University of IowaIowa CityUSA

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