Developing a new framework of gravitational N-body simulations for exascale computing

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K12031
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: High performance computing
• Research Institution: Chiba University
• Principal Investigator: Ishiyama Tomoaki 千葉大学, 統合情報センター, 准教授 (90616426)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 高性能計算 / 並列処理 / 分散処理 / データベース / 天文

Outline of Final Research Achievements

We develop a new framework of gravitational N-body simulations that enable to conduct numerical simulations and their post analysis seamlessly.
By combining a halo finding code with three-dimensional positions of simulation particles and that of cosmological N-body simulation, it becomes possible to reduce the data size for raw particle data significantly. We also made it possible to download the big dataset of halo/subhalo merger trees by means of database system. Each user can select properties downloaded and ranges of their value, which enables to download fast.

Free Research Field

シミュレーション天文学