tmLQCD: a program suite to simulate Wilson Twisted mass Lattice QCD

Abstract

We discuss a program suite for simulating Quantum Chromodynamics on a 4-dimensional space-time lattice. The basic Hybrid Monte Carlo algorithm is introduced and a number of algorithmic improvements are explained. We then discuss the implementations of these concepts as well as our parallelisation strategy in the actual simulation code. Finally, we provide a user guide to compile and run the program.

Comments: accepted for publication in the 40th anniversary issue of CPC, 44 pages