採択課題 【詳細】
| jh250018 | 高性能・高信頼な数値計算手法と応用の新展開 (2) |
|---|---|
| 課題代表者 | 片桐 孝洋(名古屋大学・情報基盤センター) Takahior Katagiri (Information Technology Center, Nagoya University) |
| 概要 | ポストエクサスケール時代に向けて、計算機システムはますます複雑化し多様化が進んでいる。特に数値計算では、演算速度や演算精度の最適化、メモリやネットワークの階層の深化に対応した通信最適化、そして電力やエネルギ効率の最適化が避けられない。本研究は、科学技術シミュレーションに現れる大規模行列に対して有効な疎行列ソルバや階層型行列演算等の高速計算、大規模言語モデル関連演算、精度保証、自動チューニング技術により新展開を目指す。 |
| 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 | |
| [] Kengo Suzuki and Takeshi Iwashita, A Nested Krylov Method Using Half-Precision Arithmetic, SC, (2025), pp. 711–727. | |
| (2) 国際会議プロシーディングス （査読あり） | |
| [] Kohei Fujita, Tsuyoshi Ichimura, Muneo Hori, Lalith Maddegedara, Explicit Low-Order Finite-Element Wave Simulation Accelerated with Variable-Precision Computing using INT8 Tensor Cores, SC25 Research Poster | |
| [] Jiamian Huang, Muhammad Umair Sadiq, Rio Yokota, Berk Hess, Tensor Core Accelerated Fast Multipole Method for GROMACS, The International Conference for High Performance Computing, Networking, Storage, and Analysis (SC25) (poster), Nov. 2025. | |
| (3) 国際会議発表（査読なし） | |
| [] Takeshi Iwashita, Yasuhito Takahashi, Takeshi Fukaya, Convergence Analysis of the Parallel Block Jacobi ICCG Solver Through Eigenvalue Distribution'', in Proceedings of the 25th International Conference on the Computation of Electromagnetic Fields (COMPUMAG2025), (22-26 June 2025), Naples, Italy, LP1C-4. | |
| [] Nakajima, K., Furumura, T., Boillod-Cerneux, F., Di Napoli, E., Suarez, E., Arakawa, T., Sumimoto, S., Yashiro, H., Innovative Computational Science by Integration of Simulation/Data/Learning on Heterogeneous Supercomputers, June 10-13, ISC-HPC 2025 Project Poster, June | |
| [] Nakajima, K., Road to "AI for Science": Exploring Software Sustainability through "Couplers", SIAM Spotlight on Supercomputing, May 21, 2025 (online) 【Invited Talk】 | |
| [] Nakajima, K., Road to "AI for Science": Exploring Software Sustainability through "Couplers", Algorithms for Multiphysics Models in The Post-Moore's Law Era, Los Alamos, NM, USA, June 5, 2025【Invited Talk】 | |
| [] Nakajima, K., Road to "AI for Science": Exploring Software Sustainability through "Couplers", 1st International Workshop on Distributed and Parallel Programming for Extreme-scale AI (DP2E-AI 2025), Paris, France, June 16-17, 2025【Invited Talk】 | |
| [] Nakajima, K., Road to "AI for Science": Exploring Software Sustainability through "Couplers", MS16: 29th International Conference on Domain Decomposition Methods (DD29), Milan, Italy, June 23-27, 2025【Invited Talk】 | |
| [] Nakajima, K., Innovative Supercomputing by Integrations of Simulations/Data/Learning on Large-Scale Heterogeneous Systems, 8th Edition of INFIERI Summer School, Pisa, Italy, September 1-13, 2025【Invited Talk】 | |
| [] Takeshi Iwashita, High-Performance Mixed-Precision Sparse Matrix Solvers for Next-Generation Computational Science and Engineering, International Workshop on Intel eXtreme Performance Users Group (IXPUG SCA/HPCAsia 2026)（招待講演）, 2026/1/26. | |
| [] Takamasa Nakaya, Tetsuya Hoshino, Daichi Mukunoki, Masatoshi Kawai, Takahiro Katagiri: Verification of the Effectiveness of Deep Learning in Preprocessing Parameter Estimation for the Conjugate Gradient Method, Posters of SCA/HPCAsia2026, January 27, 2026 | |
| [] T. Ogita: (Invited talk) Accurate and Verified Numerical Linear Algebra, The 18th East Asia SIAM Conference (EASIAM 2025), De La Salle University, Manila, Philippines, July 2, 2025. | |
| [] T. Terao: Verified Numerical Computation for an Eigenvalue Subset of Real Symmetric Matrices, Numerical Methods for Spectral Problems: Theory and Applications 2025, August 26, 2025. | |
| [] Y. Uchino, K. Ozaki, T. Imamura: DGEMM Emulation Using INT8 Matrix Engines and its Rounding Error Analysis, The Platform for Advanced Scientific Computing Conference (PASC25), 2025年6月18日. | |
| [] Y. Uchino, K. Ozaki, T. Imamura: High-Performance Emulation of Matrix Multiplication using INT8 Matrix Engines and its Error Analysis, 20th International Symposium on Scientific Computing, Computer Arithmetic, and Verified Numerical Computations (SCAN2025), 2025年9月26日. | |
| (4) 国内会議発表（査読なし） | |
| [] 中谷崇真、河合直聡、椋木大地、片桐孝洋、星野哲也、永井亨、「疎行列反復解法の深層学習を用いた実行時間予測モデル構築と評価」、第199回ハイパフォーマンスコンピューティング研究発表会、 22025年5月12日(月) 、情報処理学会研究報告HPC, 2025-HPC-199, Vol , pp.1-6 (2025) | |
| [] 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） | |
| [] 内野 佑基, 尾崎 克久, 今村 俊幸: 高性能行列乗算エミュレーションの誤差解析, 日本応用数理学会 第22回研究部会連合発表会, 2026年3月10日. | |
| (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） | |
| 該当なし |
無断転載禁止