Partial-Global Stochastic Metropolis Update for Dynamical Smeared Link Fermions

Details Partial-Global Stochastic Metropolis Update for Dynamical Smeared Link Fermions Partial-Global Stochastic Metropolis Update for Dynamical Smeared Link Fermions

2002-07-23

arxiv.org/abs/hep-lat/0207014v2

Phys.Rev. D66 (2002) 094502

Physics

High Energy Physics

High Energy Physics - Lattice

21 pages, 9 figures; corrected title

Scientific paper

10.1103/PhysRevD.66.094502

We performed dynamical simulations with HYP smeared staggered fermions using the recently proposed partial-global stochastic Metropolis algorithm with fermion matrix reduction and determinant breakup improvements. In this paper we discuss our choice of the action parameters and study the autocorrelation time both with four and two fermionic flavors at different quark mass values on approximately 10 fm^4 lattices. We find that the update is especially efficient with two flavors making simulations on larger volumes feasible.

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