Investigation of load imbalance in the hybrid atomistic-continuum simulation based on geometric coupling

DOI

10.2991/imst-16.2016.33How to use a DOI?

Keywords

qualitative guiding rules, load imbalance, hybrid atomistic-continuum method.

Abstract

The hybrid atomistic-continuum (HAC) simulation based on geometric coupling has intrinsic load imbalance under conventional parallel decomposition method. This paper presents qualitative guiding rules for alleviating load imbalance in the HAC simulation. We reveal the intrinsic load imbalance in the HAC parallel simulation, analyze the coupling procedures involved in the coupling exchange and present two qualitative decomposition rules for the atomistic region decomposition. The results of the benchmark case show the decomposition style under the guiding rules instruction performs much better than the default decomposition method which coupling overhead is only 58% of the default and communication time consuming is 75% of the default.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

TY  - CONF
AU  - Qian Wang
AU  - Xiaoguang Ren
AU  - Chao Li
AU  - Wenjing Yang
PY  - 2016/11
DA  - 2016/11
TI  - Investigation of load imbalance in the hybrid atomistic-continuum simulation based on geometric coupling
BT  - Proceedings of the 2016 International Conference on Innovative Material Science and Technology (IMST 2016)
PB  - Atlantis Press
SP  - 225
EP  - 231
SN  - 1951-6851
UR  - https://doi.org/10.2991/imst-16.2016.33
DO  - 10.2991/imst-16.2016.33
ID  - Wang2016/11
ER  -