Deflation of Eigenvalues for Iterative Methods in Lattice QCD
High Energy Physics - Lattice
2009-11-10 v1
Abstract
Work on generalizing the deflated, restarted GMRES algorithm, useful in lattice studies using stochastic noise methods, is reported. We first show how the multi-mass extension of deflated GMRES can be implemented. We then give a deflated GMRES method that can be used on multiple right-hand sides of in an efficient manner. We also discuss and give numerical results on the possibilty of combining deflated GMRES for the first right hand side with a deflated BiCGStab algorithm for the subsequent right hand sides.
Cite
@article{arxiv.hep-lat/0309068,
title = {Deflation of Eigenvalues for Iterative Methods in Lattice QCD},
author = {Dean Darnell and Ronald B. Morgan and Walter Wilcox},
journal= {arXiv preprint arXiv:hep-lat/0309068},
year = {2009}
}
Comments
Lattice2003(machine)