Session information

[E] Oral

M (Multidisciplinary and Interdisciplinary) » M-GI General Geosciences, Information Geosciences & Simulations

[M-GI36] Computational sciences on the universe, galaxies, stars, planets and their environments

Fri. May 29, 2026 9:00 AM - 10:30 AM 303 (International Conference Hall, Makuhari Messe)

Chairperson:Kawai Yuta(RIKEN Center for Computational Science), Shobuzako Kensuke(Department of Earth and Planetary Sciences, Graduate School of Science, Kyushu University)

Computer simulations have played critical roles in elucidating and understanding the diversity of planetary formation, evolution, internal structures and surface environments, the solar and stellar dynamics, and the structure formation and evolution of the universe. While computer performance has increased by seven orders of magnitude over the past 30 years, this has not necessarily improved simulation outcomes. In this session, we aim to explore how to exploit these improvements in computing performance to the quantitative and qualitative advancement of space, planet, and earth sciences with the current "Fugaku" and the coming "Fugaku NEXT" supercomputers, accelerators other than GPUs and quantum computers. We invite presentations on computational methods and AI applications in theoretical, observational, numerical simulation and data assimilation studies, and will hold a session for comprehensive discussions on the future direction of the fields. We welcome cross-disciplinary participation from all fields of the Japan Geoscience Union, not limited to space, planet, and earth science.

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9:00 AM - 9:15 AM

[MGI36-01] Three Years of Achievements and toward Fugaku-NEXT: Promoting Researches on the Supercomputer Fugaku — Structure and Evolution of the Universe Unraveled by the Fusion of Simulation and AI

*Ken Ohsuga¹ (1. University of Tsukuba)

9:15 AM - 9:30 AM

[MGI36-02] Planet Formation in the Era of 100 Million–Planetesimal N-body Simulations

*Tenri Jinno¹, Takayuki Saitoh^1,2, Yoko Funato³, Yuki Yoshida², Junichiro Makino^1,2 (1. Kobe University, 2. Center for Planetary Science, 3. The University of Tokyo)

9:30 AM - 9:45 AM

[MGI36-03] Implementation of GPU computing for open source geodynamo simulation model 'Calypso'

*Hiroaki Matsui¹ (1. Institute of Science Tokyo)

9:45 AM - 10:00 AM

[MGI36-04] A Graph Neural Network Emulator for Planet Formation in the Giant Impact Stage

*Yuichiro Ishida¹, Eiichiro Kokubo² (1. The University of Tokyo, 2. National Astronomical Observatory of Japan)

10:00 AM - 10:15 AM

[MGI36-05] The adjustment of the horizontal diffusion coefficient to changes in the resolution of a general circulation model of the atmosphere II

*Wataru Ohfuchi¹, Takahiro Iwayama², Shin-ichi Takehiro³ (1. Kobe University, 2. Fukuoka University, 3. Kyoto University)

Discussion (10:15 AM - 10:30 AM)