Deflation of Eigenvalues for GMRES in Lattice QCD

Details Deflation of Eigenvalues for GMRES in Lattice QCD Deflation of Eigenvalues for GMRES in Lattice QCD

2001-09-13

arxiv.org/abs/hep-lat/0109009v1

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

Physics

High Energy Physics

High Energy Physics - Lattice

Lattice2001(algorithms)

Scientific paper

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.

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