Deflation of eigenvalues for GMRES in lattice QCD - INSPIRE

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Deflation of eigenvalues for GMRES in lattice QCD

Ronald B. Morgan
(
- Baylor U.
)
,
Walter Wilcox
(
- Baylor U.
)

Sep, 2001

3 pages

Part of Lattice field theory. Proceedings, 19th International Symposium, Lattice 2001, Berlin, Germany, August 19-24, 2001, 1067-1069

Published in:

Nucl.Phys.B Proc.Suppl. 106 (2002) 1067-1069

Contribution to:

19th International Symposium on Lattice Field Theory (Lattice 2001), 1067-1069

e-Print:

hep-lat/0109009 [hep-lat]

DOI:

10.1016/S0920-5632(01)01930-2

Report number:

BU-HEPP-01-04

View in:

ADS Abstract Service

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Abstract:

Versions of GMRES with deflation of eigenvalues are applied to lattice QCD problems. Approximate eigenvectors corresponding to the smallest eigenvalues are generated at the same time that linear equations are solved. The eigenvectors improve convergence for the linear equations, and they help solve other right-hand sides.

talk: Berlin 2001/08/19
fermion: lattice field theory
background: Z(2)
numerical methods

References(6)

Figures(0)

GMRES: A Generalized Minimal Residual Algorithm for Solving Nonsymmetric Linear Systems

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•
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S.J. Dong
(
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)
,
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(
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,
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•
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(
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)
,
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(
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,
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)
,
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(
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•
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