An adaptive hierarchical domain decomposition method for parallel contact dynamics simulations of granular materials
نویسندگان
چکیده
A fully parallel version of the Contact dynamics (CD) method is presented in this paper. For large enough systems, 100% efficiency is reached for an arbitrary number of processors using hierarchical domain decomposition with dynamical load balancing. The iterative scheme to calculate the contact forces is left domain-wise sequential, with data exchange after each iteration step, which ensures its stability. Additional iterations due to partially parallel update at the domain boundaries vanish with increasing number of particles, which allows for an effective parallelization. We found no significant influence of the parallelization on the physical properties.
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عنوان ژورنال:
- J. Comput. Physics
دوره 231 شماره
صفحات -
تاریخ انتشار 2012