Jun-ichi Iwata

Publication Activity (10 Years)

Years Active: 2004-2024
Publications (10 Years): 1

Top Topics

Simulated Annealing

Improved Algorithm

Ultra Large Scale

Computer Programs

Top Venues

Int. J. High Perform. Comput. Appl.

Publications

Takahiro Katagiri, Jun-ichi Iwata, Kazuyuki Uchida
A Communication Avoiding and Reducing Algorithm for Symmetric Eigenproblem for Very Small Matrices. CoRR (2024)
Yukihiro Hasegawa, Jun-ichi Iwata, Miwako Tsuji, Daisuke Takahashi, Atsushi Oshiyama, Kazuo Minami, Taisuke Boku, Hikaru Inoue, Yoshito Kitazawa, Ikuo Miyoshi, Mitsuo Yokokawa
Performance evaluation of ultra-large-scale first-principles electronic structure calculation code on the K computer. Int. J. High Perform. Comput. Appl. 28 (3) (2014)
Yasunori Futamura, Tetsuya Sakurai, Shinnosuke Furuya, Jun-ichi Iwata
Efficient Algorithm for Linear Systems Arising in Solutions of Eigenproblems and Its Application to Electronic-Structure Calculations. VECPAR (2012)
Hiroshi Iwai, Kenji Natori, Kenji Shiraishi, Jun-ichi Iwata, Atsushi Oshiyama, Keisaku Yamada, Kenji Ohmori, Kuniyuki Kakushima, Parhat Ahmet
Si nanowire FET and its modeling. Sci. China Inf. Sci. 54 (5) (2011)
Kazuhiro Yabana, Yasushi Shinohara, Tomohito Otobe, Jun-ichi Iwata, George F. Bertsch
Real-time and real-space density functional calculation for electron dynamics in crystalline solids. ICCS (2011)
Yukihiro Hasegawa, Jun-ichi Iwata, Miwako Tsuji, Daisuke Takahashi, Atsushi Oshiyama, Kazuo Minami, Taisuke Boku, Fumiyoshi Shoji, Atsuya Uno, Motoyoshi Kurokawa, Hikaru Inoue, Ikuo Miyoshi, Mitsuo Yokokawa
First-principles calculations of electron states of a silicon nanowire with 100, 000 atoms on the K computer. SC (2011)
Jun-ichi Iwata, Daisuke Takahashi, Atsushi Oshiyama, Taisuke Boku, Kenji Shiraishi, Susumu Okada, Kazuhiro Yabana
A massively-parallel electronic-structure calculations based on real-space density functional theory. J. Comput. Phys. 229 (6) (2010)
Jun-ichi Iwata, Kazuhiro Yabana, George F. Bertsch
Real-space computational methods for linear and nonlinear polarizabilities. J. Comput. Methods Sci. Eng. 4 (3) (2004)