Computer simulation of liquids
Computer simulation of liquids
Fast parallel algorithms for short-range molecular dynamics
Journal of Computational Physics
Parallel many-body simulations without all-to-all communication
Journal of Parallel and Distributed Computing
Domain decomposition: parallel multilevel methods for elliptic partial differential equations
Domain decomposition: parallel multilevel methods for elliptic partial differential equations
Parallel programming with MPI
Event-driven molecular dynamics in parallel
Journal of Computational Physics
Journal of Computational and Applied Mathematics - Special issue: Selected papers from the 2nd international conference on advanced computational methods in engineering (ACOMEN2002) Liege University, Belgium, 27-31 May 2002
Parallel performance of large scale impact simulations on Linux cluster super computer
Computers and Structures
Computation and visualization of discrete particle systems on gLite-based grid
Advances in Engineering Software
Efficient parallel CFD-DEM simulations using OpenMP
Journal of Computational Physics
Advances in Engineering Software
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The paper presents parallel 3D DEM simulation of poly-dispersed material described by the normal size distribution. Static domain decomposition and message passing inter-processor communication have been implemented in the DEM code. A novel algorithm for moving particles that exchange processors has been incorporated in the domain decomposition framework. Parallel performance of the developed algorithm and software has been investigated by a series of benchmark tests conducting tri-axial compaction of material with different numbers of particles, heterogeneity ratios and compaction durations. The speed-up equal to 8.81 has been obtained on 10 processors of the distributed memory PC cluster. It has been shown that a drastic increase of computational expenses of simulation for the poly-dispersed material in terms of CPU time is associated with the increase of its heterogeneity. A contribution of the temporal evolution of microscopic behaviour has also been illustrated.