Ogita Takeshi

オギタタケシ | Ogita Takeshi

Affiliation and department：
Job title： Professor
Homepage URL (2)： https://ogilab.w.waseda.jp/ogita/math/ , https://ogilab.w.waseda.jp/ogita/

Research field (1)： Computational science

Research keywords (3)：高精度計算 , 精度保証付き数値計算 , 数値線形代数

Research theme for competitive and other funds (14)：

2022 - 2025 Fast and accurate eigenvalue calculations by hierarchical low-rank approximation and its application to large-scale electronic structure calculations
2021 - 2025 Computer-assisted solution verification for 3D flows with large Reynolds numbers
2020 - 2025 物理学・情報科学に共通する大規模行列関数の総合的数値計算法の創成
2019 - 2024 Innovative Methods for Scientific Computing in the Exascale Era by Integrations of (Simulation+Data+Learning)
2020 - 2023 疎行列を係数とする線形方程式の反復解法と精度保証付き数値計算法の融合

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Papers (41)：

Daichi Mukunoki, Katsuhisa Ozaki, Takeshi Ogita, Toshiyuki Imamura. Infinite-Precision Inner Product and Sparse Matrix-Vector Multiplication Using Ozaki Scheme with Dot2 on Manycore Processors. Parallel Processing and Applied Mathematics. 2023. 40-54
Katsuhisa Ozaki, Takeshi Ogita. Generation of test matrices with specified eigenvalues using floating-point arithmetic. NUMERICAL ALGORITHMS. 2022. 90. 1. 241-262
Katsuhisa Ozaki, Takeshi Terao, Takeshi Ogita, Takahiro Katagiri. Verified Numerical Computations for Large-Scale Linear Systems. APPLICATIONS OF MATHEMATICS. 2021. 66. 2. 269-285
Daichi Mukunoki, Katsuhisa Ozaki, Takeshi Ogita, Roman Iakymchuk. Conjugate Gradient Solvers with High Accuracy and Bit-wise Reproducibility between CPU and GPU using Ozaki scheme. 2021. 100-109
Daichi Mukunoki, Takeshi Ogita. Performance and energy consumption of accurate and mixed-precision linear algebra kernels on GPUs. J. Comput. Appl. Math. 2020. 372. 112701-112701

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MISC (56)：

Acceleration of Iterative Refinement for Symmetric Eigenvalue Decomposition. 2022. 15. 1. 1-12
内野佑基, 尾崎克久, 荻田武史. 実対称固有値分解に対する反復改良法の高速化. 日本応用数理学会年会講演予稿集(CD-ROM). 2022. 2021
内野佑基, 尾崎克久, 荻田武史. 実対称行列の固有値分解に対する反復改良法の大規模並列環境における実装と評価. 情報処理学会研究報告(Web). 2020. 2020. HPC-177
尾崎克久, 椋木大地, 荻田武史. GPUの単精度演算・Tensorコアを用いた行列積のエラーフリー変換. 日本応用数理学会年会講演予稿集(CD-ROM). 2020. 2020
椋木大地, 尾崎克久, 荻田武史. 尾崎スキームを用いたbinary128による4倍精度行列積. 日本応用数理学会年会講演予稿集(CD-ROM). 2020. 2020

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Books (1)：

Education (2)：

Professional career (1)：

Work history (8)：

2023/04 - 現在 Waseda University Department of Applied Mathematics, Faculty of Science and Engineering Professor
2018/04 - 2023/03 Tokyo Woman's Christian University Division of Mathematical Sciences, School of Arts and Sciences
2010/04 - Tokyo Woman's Christian University School of Arts and Sciences, Division of Mathematical Sciences
2009/04 - Tokyo Woman's Christian University School of Arts and Sciences, Division of Mathematical Sciences
2008/04 - Tokyo Woman's Christian University Department of Mathematics, College of Arts and Sciences

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Committee career (5)：

Awards (2)：

Association Membership(s) (1)：

日本応用数理学会

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