A Parallel SSOR Preconditioner for Lattice QCD

Details A Parallel SSOR Preconditioner for Lattice QCD A Parallel SSOR Preconditioner for Lattice QCD

1996-08-13

arxiv.org/abs/hep-lat/9608066v1

Nucl.Phys.Proc.Suppl. 53 (1997) 990-992

Physics

High Energy Physics

High Energy Physics - Lattice

Talk presented at LATTICE96(algorithms), 3 pages, LaTeX file, 3 epsf-files included

Scientific paper

10.1016/S0920-5632(96)00836-5

A parallelizable SSOR preconditioning scheme for Krylov subspace iterative solvers in lattice QCD applications involving Wilson fermions is presented. In actual Hybrid Monte Carlo and quark propagator calculations it helps to reduce the number of iterations by a factor of 2 compared to conventional odd-even preconditioning. This corresponds to a gain in cpu-time of 30\% - 70\% over odd-even preconditioning.

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