Fortran MPI Checkerboard Code for SU(3) Lattice Gauge Theory I
Bernd A. Berg
TL;DR
This paper presents a Fortran MPI code for simulating SU(3) lattice gauge theory using Markov Chain Monte Carlo methods, with flexible parallelization techniques applicable to various models.
Contribution
It introduces a parallelized Fortran MPI checkerboard code for SU(3) lattice gauge theory with flexible sublattice parallelization methods.
Findings
Efficient parallelization on multiple dimensions implemented.
Applicable to models with link variable interactions on plaquettes.
Supports periodic boundary conditions as an option.
Abstract
We document Fortran MPI checkerboard code for Markov Chain Monte Carlo simulations of pure SU(3) lattice gauge theory with the Wilson action on a D-dimensional double-layered torus. This includes the usual torus with periodic boundary conditions as an optional case. We use Cabibbo-Marinari heatbath checkerboard updating. Parallelization on sublattices is implemented in all D directions and can be restricted to less than D directions. The parallelization techniques of this paper can be used for any model with interactions of link variables defined on plaquettes.
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