An LA-SiGMA Software Distribution GPU Parallel Tempering Simulation of the 3D Edwards-Anderson Model Version x (rxxx) - xx XXXX 20xx Copyright 2014 Louisiana State University This package contains code and sample data for 3d Edwards-Anderson Model simulation for systems with NVidia GPUs. This code uses multi-spin coding technique to store the spins and enhance performance, and Parallel tempering technique to facilitate equilibration. Please refer to the following paper for more detailed description. DOI: 10.1016/j.cpc.2014.05.020 LA-SiGMA, the Louisiana Alliance for Simulation-Guided Materials Applications, is a statewide interdisciplinary collaboration of material and computer scientists developing computational resources tuned for the latest generation of accelerator-equipped systems. The Alliance also develops graduate curricula and is engaged in multiple outreach activities. Visit us at http://lasigma.loni.org . The accelerator ports of this code were developed by Ye Fang <yfang11@tigers.lsu.edu>, Sheng Feng <sfeng4@tigers.lsu.edu> with the assistance of Ka Ming Tam <phy.kaming@gmail.com>, Zhifeng Yun <zyun1@tigers.lsu.edu>, Juana Moreno <moreno@phys.lsu.edu>, J. (Ram) Ramanujam <ram@cct.lsu.edu> and Mark Jarrell <jarrellphysics@gmail.com>.