第152回計算科学コロキウムを開催いたします。多数のご来聴をお待ちしております。

講演タイトル：Science at the Post-Exascale Computing, Quantum Computing & AI Crossroads
講演者：Prof. Aiichiro Nakano (University of Southern California)
日時：2025年10月30日（木）11:00-11:45
場所：計算科学研究センター　ワークショップ室
言語：英語
講演内容：
As the Exaflop/s computing matures, computing landscape is evolving rapidly. While quantum computers have outperformed the fastest supercomputers for certain problems, artificial intelligence (AI) is transforming every aspect of our life. These changes pose an existential challenge for traditional computational sciences based on simulation and modeling.
To address this challenge, we have developed a divide-conquer-recombine (DCR)/metamodel-space-algebra (MSA) paradigm to solve hard multiscale/multiphysics problems harnessing emerging trends of computing hardware. Based on this paradigm, we have developed a MLMD (multiscale light-matter dynamics) software composed of first-principles DC-MESH (divide-and-conquer Maxwell-Ehrenfest-surface hopping) module for nonadiabatic quantum dynamics (NAQMD) and AI-accelerated XS-NNQMD (excited-state neural-network quantum molecular dynamics) module to expand the spatiotemporal scale of NAQMD.
Using 60,000 GPUs of the Aurora supercomputer, MLMD has achieved 1.87 Exaflop/s performance, thus allowing the simulation of light-induced switching of topological superlattices for future ferroelectric ‘topotronics’. This work suggests new algorithm-hardware co-design pathways at the postexa-quantum-AI crossroads.

世話人：　大谷実