Parallel kinetic Monte Carlo simulation of Coulomb glasses

Ezequiel E. Ferrero (1) , Alejandro B. Kolton (2) , Matteo Palassini

1 LIPhy - Laboratoire Interdisciplinaire de Physique [Saint Martin d’Hères]
2 Centro Atómico Bariloche [Argentine]

We develop a parallel rejection algorithm to tackle the problem of low acceptance in Monte Carlo methods, and apply it to the simulation of the hopping conduction in Coulomb glasses using Graphics Processing Units, for which we also parallelize the update of local energies. In two dimensions, our parallel code achieves speedups of up to two orders of magnitude in computing time over an equivalent serial code. We find numerical evidence of a scaling relation for the relaxation of the conductivity at different temperatures.

Domaines: Mécanique statistique [cond-mat.stat-mech]; Physique Numérique [physics.comp-ph]

Ezequiel E. Ferrero, Alejandro B. Kolton, Matteo Palassini. Parallel kinetic Monte Carlo simulation of Coulomb glasses. AIP Conference Proceedings, 2014, ⟨10.1063/1.4893513⟩. ⟨hal-01579010⟩