Parallel scale-transfer in multiscale MD-FE coupling using remote memory access

Dorian Krause*, Rolf Krause

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

We present a novel remote memory access based approach to the parallelization of a coupled Molecular Dynamics-Finite Element (MD/FE) code and its implementation. Such multiscale simulation codes can be used for, e.g., the simulation of localized nonlinear phenomena as fracture in solids. Caused by the dynamic data distribution of MD codes this requires non-standard communication mechanisms. We investigate different implementation options for realizing the scale transfer between MD and FE in parallel. We present benchmark results obtained on three different parallel architectures which give interesting insights into the performance of our new approach. Additionally, we study the scaling of a full coupled code. To the best of our knowledge, these results are the first available scaling results for this kind of heterogeneous code.

Original languageEnglish (US)
Title of host publicationProceedings - 7th IEEE International Conference on e-Science Workshops, eScienceW 2011
Pages66-73
Number of pages8
DOIs
StatePublished - 2011
Event7th IEEE International Conference on e-Science Workshops, eScienceW 201 - Stockholm, Sweden
Duration: Dec 5 2011Dec 8 2011

Publication series

NameProceedings - 7th IEEE International Conference on e-Science Workshops, eScienceW 2011

Conference

Conference7th IEEE International Conference on e-Science Workshops, eScienceW 201
Country/TerritorySweden
CityStockholm
Period12/5/1112/8/11

Keywords

  • Fracture Mechanics
  • Global Array
  • MPI
  • Multiscale Coupling
  • Remote Memory Access

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Management Science and Operations Research

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