arXiv:hep-lat/9809038·v2·High Energy Physics — Lattice
A Preconditioner for Improved Fermion Actions
N. Eicker🇩🇪 · W. Bietenholz🇩🇪 · A. Frommer🇩🇪 · Th. Lippert🇩🇪 · B. Medeke🇩🇪 · K. Schilling🇩🇪
Abstract
SSOR preconditioning of fermion matrix inversions which is parallelized using a locally-lexicographic lattice sub-division, has been shown to be very efficient for standard Wilson fermions. We demonstrate here the power of this method for the Sheikholeslami-Wohlert improved fermion action and for a renormalization group improved action incorporating couplings of the lattice fermion fields up to the diagonal in the unit hypercube.
Comments: changed: some typos, LATTICE98(algorithms)