[P-EM17] Space Plasma Physics: Theory and Simulation

[PEM17-01] Development of Manycore-Aware PIC Simulator with OhHelp and Particle Binning Method

*Yohei Miyake¹, Yoshiki Summura², Takuya Saeki², Hiroshi Nakashima³ (1.Education Center on Computational Science and Engineering, Kobe University, 2.Graduate School of System Informatics, Kobe University, 3.Academic Center for Computing and Media Studies, Kyoto University)

Keywords:Particle-in-cell simulation, Manycore processor, Domain decomposition, Dynamics load balancing, Particle binning

This paper discusses manycore-aware implementation of plasma particle-in-cell simulation code parallelized with the OhHelp and particle binning techniques. As a step of the development, we implemented its prototype to confirm the effectiveness and efficiency of our manycore-aware techniques such as cell coloring, on-the-fly particle sorting, and position-aware inter-process particle transfer. In this report we summarize these issues and then present results of fundamental performance evaluation with various artificial/physical settings including those causing severe load imbalance among processes.