Methods of parallel computation applied on granular simulations
1 Programa de Pós-Graduação em Modelagem Matemática e Computacional - PPG-MMC, Centro Federal de Educação Tecnológica de Minas Gerais, CEFET–MG, Av. Amazonas 7675, 30510-000, Belo Horizonte, MG, Brazil.
2 Physics and Mathematics Departament, Centro Federal de Educação Tecnológica de Minas Gerais, CEFET–MG, Av. Amazonas 7675, 30510-000, Belo Horizonte, MG, Brazil.
3 Instituto Nacional de Ciência e Tecnologia de Sistemas Complexos (INCT-SC).
Published online: 30 June 2017
Every year, parallel computing has becoming cheaper and more accessible. As consequence, applications were spreading over all research areas. Granular materials is a promising area for parallel computing. To prove this statement we study the impact of parallel computing in simulations of the BNE (Brazil Nut Effect). This property is due the remarkable arising of an intruder confined to a granular media when vertically shaken against gravity. By means of DEM (Discrete Element Methods) simulations, we study the code performance testing different methods to improve clock time. A comparison between serial and parallel algorithms, using OpenMP® is also shown. The best improvement was obtained by optimizing the function that find contacts using Verlet’s cells.
© The Authors, published by EDP Sciences, 2017
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