Tran, Công TâmCrespin, BenoîtCerbelaud, ManuellaVidecoq, ArnaudFabrice Jaillet and Florence Zara and Gabriel Zachmann2015-11-042015-11-042015978-3-905674-98-9https://doi.org/10.2312/vriphys.20151332Brownian Dynamics simulations are frequently used to describe and study the motion and aggregation of colloidal particles, in the field of soft matter and material science. In this paper, we focus on the problem of neighbourhood search to accelerate computations on a single GPU. Our approach for one kind of particle outperforms existing implementations by introducing a novel dynamic test. For bimodal size distributions we also introduce a new algorithm that separates computations for large and small particles, in order to avoid additional friction that is known to restrict diffusive displacements.I.3.7 [Computer Graphics]Three Dimensional Graphics and RealismAnimationI.3.8 [Computer Graphics]ApplicationsI.6.8 [Simulation and modeling]Types of SimulationParallelJ.2 [Computer Applications]Physical Sciences and EngineeringChemistry10.2312/vriphys.2015133231-40