An update on the BQCD Hybrid Monte Carlo program

Understand

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, a more flexible integration scheme, polynomial filtering, term-splitting for RHMC, and a portable implementation of performance critical parts employing SIMD.