Partial-Global Stochastic Metropolis Update for Dynamical Smeared Link Fermions

Abstract

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.

21 pages, 9 figures; corrected title

Cited by in corpus (13)

• Lattice QCD at finite density via a new canonical approach
• Quenched spectroscopy with fixed-point and chirally improved fermions
• Reweighting towards the chiral limit
• Improving the Chiral Properties of Lattice Fermions
• Hybrid Monte Carlo with Fat Link Fermion Actions
• Updating algorithms with multi-step stochastic correction
• Simulating Full QCD with the Fixed Point Action
• Lattice QCD at the end of 2003
• Study of QCD critical point using canonical ensemble method
• 2+1 Flavor QCD simulated in the epsilon-regime in different topological sectors
• Reducing Residual-Mass Effects for Domain-Wall Fermions
• Progress on a canonical finite density algorithm
• Sea Contributions to Hadron Electric Polarizabilities through Reweighting