openQ*D simulation code for QCD+QED
Instituto de Física de Cantabria - IFCA-CSIC, Avda. de Los Castros s/n, 39005 Santander, Spain
2 Instituto de Física Teórica UAM/CSIC, Universidad Autónoma de Madrid, C/ Nicolás Cabrera 13-15, Cantoblanco, Madrid 28049
3 Theoretical Physics Department, CERN, CH-1211 Geneva 23, Switzerland ***
4 CP3-Origins, University of Southern Denmark, Campusvej 55, DK-5230 Odense M, Denmark
5 School of Mathematics, Trinity College Dublin, Dublin 2, Ireland
6 Centre for Mathematical Sciences, Plymouth University, Plymouth, PL4 8AA, UK
7 Università di Roma Tor Vergata, INFN, Sezione di Tor Vergata, c/o Dipartimento di Fisica, Via della Ricerca Scientifica 1, I-00133 Rome, Italy
Published online: 26 March 2018
The openQ*D code for the simulation of QCD+QED with C* boundary conditions is presented. This code is based on openQCD-1.6, from which it inherits the core features that ensure its efficiency: the locally-deflated SAP-preconditioned GCR solver, the twisted-mass frequency splitting of the fermion action, the multilevel integrator, the 4th order OMF integrator, the SSE/AVX intrinsics, etc. The photon field is treated as fully dynamical and C* boundary conditions can be chosen in the spatial directions. We discuss the main features of openQ*D, and we show basic test results and performance analysis. An alpha version of this code is publicly available and can be downloaded from http://rcstar.web.cern.ch/.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).