A Preconditioner for Improved Fermion Actions
arXiv:hep-lat/9809038 · doi:10.1016/S0920-5632(99)85222-0
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.
changed: some typos, LATTICE98(algorithms)