Multidisciplinary and Interdisciplinary (M)
Session Sub-category General Geosciences, Information Geosciences & Simulations(GI)
Session ID M-GI36
Title Computational sciences on the universe, galaxies, stars, planets and their environments
Short Title Computational universe and planets
Main Convener Name Wataru Ohfuchi
Affiliation Kobe University
Co-Convener 1 Name Junichiro Makino
Affiliation Kobe University
Co-Convener 2 Name Masanori Kameyama
Affiliation Geodynamics Research Center, Ehime University
Co-Convener 3 Name Hideyuki Hotta
Affiliation Nagoya University
Co-Convener 4 Name Yuta Kawai
Affiliation RIKEN Center for Computational Science
Co-Convener 5 Name Atsushi Nakao
Affiliation University of Tsukuba
Session Language 
E
Scope 
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.
Presentation Format Oral and Poster presentation
Time Presentation No Title Presenter
Oral Presentation May 29 AM1
9:00 - 9:15 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 Ohsuga
9:15 - 9:30 MGI36-02 Planet Formation in the Era of 100 Million–Planetesimal N-body Simulations Tenri Jinno
9:30 - 9:45 MGI36-03 Implementation of GPU computing for open source geodynamo simulation model 'Calypso' Hiroaki Matsui
9:45 - 10:00 MGI36-04 A Graph Neural Network Emulator for Planet Formation in the Giant Impact Stage Yuichiro Ishida
10:00 - 10:15 MGI36-05 The adjustment of the horizontal diffusion coefficient to changes in the resolution of a general circulation model of the atmosphere II Wataru Ohfuchi
Oral Presentation May 29 AM2
10:45 - 11:00 MGI36-06 MN-Core Lx1000 series: High-performance accelerator with extremely high memory bandwidth Junichiro Makino
11:00 - 11:15 MGI36-07 On the Formation of Very Massive Stars: Disk-Scale Simulations of Radiative Feedback with Large Dust Grains Chia Tsuzuku
11:15 - 11:30 MGI36-08 Molecular dynamics simulations of the rolling motion of dust particles Yuki Yoshida
11:30 - 11:45 MGI36-09 Directive-Based GPU Acceleration of a General Circulation Model for Efficient Climate Simulations Shoji Sakoda
11:45 - 12:00 MGI36-10 Attempt to accelerate iterative solvers using dynamic mode decomposition: Toward improving convergence of 3-D simulations of mantle convection Masanori Kameyama
Presentation No Title Presenter
Poster Presentation May 29 PM3
MGI36-P01 Estimating the Rayleigh number and thermal structure in laboratory convection via PINN-based Lagrangian data assimilation Atsushi Nakao
MGI36-P02 Boundary treatment with multi-layer ghost particles as a dominant error source in the Least-Squares SPH method Kensuke Shobuzako
MGI36-P03 Executing array calculation code generated by the OpenACC for MN-Core compiler Ryuta Tsunashima
MGI36-P04 Semi-discrete optimal transport construction of a new equal-area icosahedral grid for spherical PDEs Toshiki Matsushima
MGI36-P05 N-body simulations of planetary formation around M-dwarfs
considering planetesimal density differences 		Hiroaki Daido
MGI36-P06 Stable plate motion and its features reproduced in a 3D spherical model of mantle convection with stress history dependent rheology Takehiro Miyagoshi
MGI36-P07 An efficient solver for shallow water models based on spherical Fourier transforms Suzune Nomura
MGI36-P08 A Fast Tree Algorithm for Multi-Component Dust Coagulation in Planet Formation Taichi K Watanabe
MGI36-P09 Highly Parallel and High-Speed Implementation of the General Circulation Model for Planetary Atmospheres, "DCPAM" Shin-ichi Takehiro
MGI36-P10 Oligarchic growth of protoplanets in an expanding planetesimal ring Yuki Kambara
MGI36-P11 Heat transport of sheared rotating spherical convection and its implications for gas giants Kumiko Hori
MGI36-P12 Impacts of utilzing the spectral method for vertical discretization of the atmospheric GCM dynamical cores Shun Fujita
MGI36-P13 Leading Spiral Structures in High-Resolution N-body Simulations of Lunar-Forming Disks Yoichi Yoshimura