Title
GPU-accelerated DEM implementation with CUDA.
Abstract
Granular materials are considered as the most seen materials in the world, and discrete element method DEM has become one of the most accurate and effective methods to simulate them. However, to achieve the preciseness expected from DEM, there exist huge force computations. Researchers have to either focus on simulations with fewer particles or build large-scale computer clusters for the ones with more particles. Moreover, DEM exhibits rich data-parallel nature in simulations. Recently, graphics processing units GPU have become yet another powerful parallel computing platform for scientific applications. In this paper, we intend to implement DEM on GPUs to explore system resources thoroughly for performance gains. Experiment results have demonstrated that the proposed implementation can achieve 2x~15x speedup depending on the number of particles and generations of GPUs, when compared to LAMMPS/granular module on 4-core systems.
Year
DOI
Venue
2015
10.1504/IJCSE.2015.072653
IJCSE
Keywords
Field
DocType
discrete element method, DEM, graphics processing units, GPU, neighbour list, linked-cell
Graphics,Computer science,CUDA,Parallel computing,Computational science,Graphics processing unit,Computer graphics,Discrete element method,Computer cluster,CUDA Pinned memory,Speedup
Journal
Volume
Issue
ISSN
11
3
1742-7185
Citations 
PageRank 
References 
3
0.45
6
Authors
5
Name
Order
Citations
PageRank
Ji Qi15010.17
Kuan-ching Li2933122.44
Hai Jiang3709.72
Qingguo Zhou410329.48
Lei Yang530.45