学際大規模情報基盤共同利用・共同研究拠点

採択課題 【詳細】

jh250028 High resolution simulation of cardiac electrophysiology on realistic whole-heart geometries
課題代表者 中島研吾(東京大学情報基盤センター)
Kengo Nakajima (Information Technology Center, The University of Tokyo)
概要 Recent advancements in computational cardiology involve the use of cell-resolved mathematical models of electrophysiology, unlike traditional models that merge intra- and extracellular spaces. These models demand high computational resolution, necessitating advancements in high-performance computing (HPC). The project aims to extend the jh240030 project, enabling cell-resolved simulations of cardiac physiology to enhance understanding of the heart's electrical activities. The EMI (Extracellular-Membrane-Intracellular) model is a key focus, requiring specialized mesh partitioning and new numerical algorithms. The project also aims to leverage GPU computing, particularly with GH200 processors on the Miyabi system, to achieve unprecedented large-scale simulations, advancing knowledge in computational physiology and HPC.
関連Webページ
報告書等 研究紹介ポスター / 最終報告書
業績一覧 (1) 学術論文 (査読あり)
[] Kengo Nakajima, 2025, Optimization of communication-computation overlapping in parallel multigrid methods by process/thread allocation, Japan Journal of Industrial and Applied Mathematics, 42 (3), 1029-1062
(2) 国際会議プロシーディングス (査読あり)
[] James D. Trotter, Sinan Ekmekçibaşı, Doğan Sağbili, Johannes Langguth, Xing Cai, Didem Unat, CPU- and GPU-initiated Communication Strategies for Conjugate Gradient Methods on Large GPU Clusters, ACM/IEEE Proceedings of SC'25, Saint Louis, MO, USA, November 16-21, 2025 (in press)
(3) 国際会議発表(査読なし)
[] Nakajima, K., Effects of Process/Thread Allocation for Optimization of Communication-Computation Overlapping in Parallel Multigrid Methods, 22nd Copper Mountain Multigrid Conference, Copper Mountain, CO, USA, April 15, 2025
[] Alessandro Gatti, James D. Trotter, Hermenegild Arevalo, Tor Skeie, Xing Cai, Towards a Resource-Efficient GPU Solver for Monodomain Equations in Cardiac Electrophysiology, Poster presented at The 52nd International Conference in Cardiology Computing (CinC), Sao Paulo, Brazil, September 14-17, 2025
(4) 国内会議発表(査読なし)
[] 中島研吾,スーパーコンピューティングへの招待:スパコンへの数学,第19回創造性の育成塾,東京,2025年7月29日【招待講演】
[] 中島研吾,三木洋平,山崎一哉,下川辺隆史,富岳NEXTにおける アプリケーションとプログラミング,RIMS共同研究:数値解析が拓く次世代情報社会~データ駆動型から「富岳NEXT」~,京都大学益川ホール,2025年10月8日~10日【招待講演】
[] 中島研吾,深谷猛,南里豪志,混合精度パイプライン型共役勾配法,情報処理学会研究報告(2025-HPC-199-02)
[] 中島研吾,深谷猛,南里豪志,大規模並列環境におけるパイプライン型共役勾配法,情報処理学会研究報告(2025-HPC-200-02)
(5) 公開したライブラリなど
該当なし
(6) その他(特許,プレスリリース,著書等)
[] 【Award】令和7年度文部科学大臣表彰科学技術賞科学技術振興部門:中島研吾,住元真司,荒川隆,下川邊隆史,塙敏博(Minister of MEXT Award for Science and Technology, Science and Technology Promotion Division, Reiwa 7:Kengo Nakajima, Shinji Sumimoto, Takashi Arakawa, Takashi Shimokawabe, Toshihiro Hanawa)
無断転載禁止