Domain decomposition with discrete element simulations using shared-memory parallel computing for railways applications
DOI:
https://doi.org/10.13052/17797179.2012.714723Keywords:
non-smooth contact dynamics, parallelisation, LMGC90, ballast, maintenanceAbstract
Numerical simulation with discrete elements leads to several issues for large-scale problems and long loading times, as for the granular dynamic simulations of the ballasted railway behaviour. To reduce computational costs, we study the use of two strategies: domain decomposition methods and shared-memory parallelisation with OpenMP. An example of a maintenance process, the tamping, on a portion of railway track with seven sleepers, is simulated.
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