Regular Articles

Full Text / References

Development of Parallelized AMR-PIC Plasma Simulation Code with Dynamic Domain Decomposition

Hideyuki USUI^1,3), Yohei YAGI^1,3), Masaharu MATSUMOTO^1,3) and Masanori NUNAMI^2,3)

1)

Graduate School of System Informatics, Kobe University, Kobe 657-8501, Japan

2)

National Institute for Fusion Science, Toki 509-5292 Japan

3)

Japan Science and Technology Agency (JST) / CREST, Tokyo 102-0076, Japan

(Received 7 December 2012 / Accepted 22 August 2013 / Published 15 November 2013)

Abstract

To maintain load balance among processes in parallel calculation, we introduced a dynamic load balancing technique called Dynamic Domain Decomposition (DDD) into our newly developed multi-scale Particle-In-Cell (PIC) simulation code in which Adaptive Mesh Refinement (AMR) is incorporated. To evaluate the effectiveness of DDD, we performed test simulations with a model in which four particle clusters are non-uniformly distributed with different velocities. We confirmed that load imbalance among processes caused by non-uniform plasma distribution was successfully resolved by DDD and the computational time becomes almost half of that for simulation of the same model without using DDD.

Copyright (c) 2013 The Japan Society of Plasma Science and Nuclear Fusion Research

Keywords

Particle-In-Cell, parallel computing, dynamic load balance, plasma simulation

DOI: 10.1585/pfr.8.2401149

Full Text

PDF format (2.0Mbytes)

References

• [1] C.K. Birdsall and A.B. Langdon, Plasma Physics via Computer Simulation reprinted (Taylor & Francis, New York, 2005).
• [2] H. Usui et al., Procedia Computer Science 4, 2337 (2011).
• [3] G.M. Morton, A computer Oriented Geodetic Data Base; and a New Technique in File Sequencing (IBM, Ottawa, 1966).

This paper may be cited as follows:

Hideyuki USUI, Yohei YAGI, Masaharu MATSUMOTO and Masanori NUNAMI, Plasma Fusion Res. 8, 2401149 (2013).