A PARALLEL SSOR PRECONDITIONER FOR LATTICE QCD

Authors
FISCHER S FROMMER A GLASSNER U GUSKEN S HOEBER H LIPPERT T RITZENHOFER G SCHILLING K SIEGERT G SPITZ A
Citation
S. Fischer et al., A PARALLEL SSOR PRECONDITIONER FOR LATTICE QCD, Nuclear physics. B, 1997, pp. 990-992
Citations number
5
Categorie Soggetti
Physics, Nuclear
Journal title
Nuclear physics. B → ACNP
ISSN journal
05503213
Year of publication
1997
Supplement
53
Pages
990 - 992
Database
ISI
SICI code
0550-3213(1997):<990:APSPFL>2.0.ZU;2-B
Abstract
A parallelizable SSOR preconditioner scheme for Krylov subspace iterat ive solvers for lattice QCD applications involving Wilson fermions is presented. In actual Hybrid Monte Carlo and quark propagator calculati ons it helps 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.