Sparse matrix orderings for factorized inverse preconditioners

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Description

The effect of reorderings on the performance of factorized sparse approximate inverse preconditioners is considered. It is shown that certain reorderings can be very beneficial both in the preconditioner construction phase and in terms of the rate of convergence of the preconditioned iteration.

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8 p.

Creation Information

Benzi, M. & Tuama, M. September 1998.

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Authors

  • Benzi, M. Los Alamos National Lab., NM (United States). Scientific Computing Group
  • Tuama, M. Academy of Sciences of the Czech Republic, Prague (Czech Republic). Inst. of Computer Science

Publisher

  • Los Alamos National Laboratory
    Publisher Info: Los Alamos National Lab., Scientific Computing Group, NM (United States)
    Place of Publication: New Mexico

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Description

The effect of reorderings on the performance of factorized sparse approximate inverse preconditioners is considered. It is shown that certain reorderings can be very beneficial both in the preconditioner construction phase and in terms of the rate of convergence of the preconditioned iteration.

Physical Description

8 p.

Notes

OSTI as DE98006328

Source

  • 5. Copper Mountain conference on iterative methods, Copper Mountain, CO (United States), 30 Mar - 3 Apr 1998

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  • Other: DE98006328
  • Report No.: LA-UR--98-1129
  • Report No.: CONF-980393--
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 666038
  • Archival Resource Key: ark:/67531/metadc710076

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Office of Scientific & Technical Information Technical Reports

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Creation Date

  • September 1998

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

Description Last Updated

  • Feb. 25, 2016, 4:25 p.m.

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Benzi, M. & Tuama, M. Sparse matrix orderings for factorized inverse preconditioners, article, September 1998; New Mexico. (digital.library.unt.edu/ark:/67531/metadc710076/: accessed October 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.