Study for High-speed comuting for plasma particle-in-cell simulation by using GPU

2014 Fiscal Year Final Research Report

• Project/Area Number: 24654127
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Mathematical physics/Fundamental condensed matter physics
• Research Institution: Nagoya University
• Principal Investigator: SAITO Shinji 名古屋大学, 理学(系)研究科(研究院), 准教授 (60528165)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: GPU / プラズマ粒子シミュレーション

Outline of Final Research Achievements

The objective of this study is to develop method to accelerate calculations for plasma particle-in-cell simulation by using GPU that is many-cores device connected by PIC-Express. The particle-in-cell simulation method is expected to require more and more computer resources in near future. The bottleneck for GPU is the send-and-receive of data between the host (CPU) and the device (GPU). In order to reduce the the bottleneck, simulation data for calculation is divided into several blocks. By using the divided blocks, the data transfer between CPU and GPU and data processing in the GPU can be done simultaneously. This method reduces the data transfer time during the calculation of the particle-in-cell simulation. This method achieved 8-times faster computing than the calculation by a core of the CPU. By using the GPU-Particle-in-cell simulation, I cited results related to a nonlinear development of waves in plasma.

Free Research Field

宇宙プラズマ物理