Comparative Benchmarks of full QCD Algorithms

Abstract

We report performance benchmarks for several algorithms that we have used to simulate the Schr"odinger functional with two flavors of dynamical quarks. They include hybrid and polynomial hybrid Monte Carlo with preconditioning. An appendix describes a method to deal with autocorrelations for nonlinear functions of primary observables as they are met here due to reweighting.

Comments: 24 pages, 3 figures, some added discussion, version submitted to Comput. Phys. Commun