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IRTG Lecture

Friday, July 6, 2018 10:00 AM;

JGU Mainz, Physics, Newton-Raum

Lecture:

Andre' Brinkmann: An introduction into parallel programming

Talk:

Horacio V. Guzman: Efficient multiple time scales mapping in multiscale molecular simulation, a hierarchical domain decomposition approach

Multiscale and inhomogeneous molecular systems are challenging topics in the field of molecular simulation. In particular, mapping time and space of the different regions of a simulation with different resolution constitutes a new question worth exploring. Mainly, this question arises from the method development viewpoint for the domain decomposition of the molecular dynamics machinery. Here, we introduce the heterogeneous time-spatial domain decomposition approach which is a combination of an heterogeneity sensitive spatial domain decomposition with a time evolution average of particles' diff usion domainwise estimated. Within this approach, the spatial domain decomposition is theoretically modeled and results in scaling-laws for the force calculation simulation-time, while timewise the domains are tackled by the communication-time expended in the parallelization scheme. We explore the new approach capabilities, by comparing it to both static domain decomposition algorithms and dynamic load balancing schemes for archetypical molecular systems.

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