An update on the BQCD Hybrid Monte Carlo program

¹ CSSM, Department of Physics, The University of Adelaide, Adelaide, SA, Australia 5005
² RIKEN Advanced Institute for Computational Science, Kobe, Hyogo 650-0047, Japan
³ Universität Hamburg, Regionales Rechenzentrum, 20146 Hamburg, Germany

^* Speaker, e-mail: hinnerk.stueben@uni-hamburg.de

Published online: 26 March 2018

Abstract

We present an update of BQCD, our Hybrid Monte Carlo program for simulating lattice QCD. BQCD is one of the main production codes of the QCDSF collaboration and is used by CSSM and in some Japanese finite temperature and finite density projects. Since the first publication of the code at Lattice 2010 the program has been extended in various ways. New features of the code include: dynamical QED, action modification in order to compute matrix elements by using Feynman-Hellman theory, more trace measurements (like Tr(D^-n) for K, c_SW and chemical potential reweighting), a more flexible integration scheme, polynomial filtering, term-splitting for RHMC, and a portable implementation of performance critical parts employing SIMD.