Jun-ichi Iwata

According to our database, Jun-ichi Iwata authored at least 8 papers between 2004 and 2024.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2024

A Communication Avoiding and Reducing Algorithm for Symmetric Eigenproblem for Very Small Matrices.

Takahiro Katagiri, Jun-ichi Iwata, Kazuyuki Uchida

CoRR, 2024

2014

Performance evaluation of ultra-large-scale first-principles electronic structure calculation code on the K computer.

Yukihiro Hasegawa, Jun-ichi Iwata, Miwako Tsuji, Daisuke Takahashi, Atsushi Oshiyama, Kazuo Minami, Taisuke Boku, Hikaru Inoue, Yoshito Kitazawa, Ikuo Miyoshi, Mitsuo Yokokawa

Int. J. High Perform. Comput. Appl., 2014

2012

Efficient Algorithm for Linear Systems Arising in Solutions of Eigenproblems and Its Application to Electronic-Structure Calculations.

Yasunori Futamura, Tetsuya Sakurai, Shinnosuke Furuya, Jun-ichi Iwata

Proceedings of the High Performance Computing for Computational Science, 2012

2011

Real-time and real-space density functional calculation for electron dynamics in crystalline solids.

Kazuhiro Yabana, Yasushi Shinohara, Tomohito Otobe, Jun-ichi Iwata, George F. Bertsch

Proceedings of the International Conference on Computational Science, 2011

Si nanowire FET and its modeling.

Hiroshi Iwai, Kenji Natori, Kenji Shiraishi, Jun-ichi Iwata, Atsushi Oshiyama, Keisaku Yamada, Kenji Ohmori, Kuniyuki Kakushima, Parhat Ahmet

Sci. China Inf. Sci., 2011

First-principles calculations of electron states of a silicon nanowire with 100, 000 atoms on the K computer.

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

Proceedings of the Conference on High Performance Computing Networking, 2011

2010

A massively-parallel electronic-structure calculations based on real-space density functional theory.

Jun-ichi Iwata, Daisuke Takahashi, Atsushi Oshiyama, Taisuke Boku, Kenji Shiraishi, Susumu Okada, Kazuhiro Yabana

J. Comput. Phys., 2010

2004

Real-space computational methods for linear and nonlinear polarizabilities.

Jun-ichi Iwata, Kazuhiro Yabana, George F. Bertsch

J. Comput. Methods Sci. Eng., 2004