Tomohiko Watanabe

15 papers Journal 12Unranked 3
YearRankTypeTitle / Venue / Authors
2025 J jnl
A kinetic energy and entropy preserving scheme for compressible magnetohydrodynamics.
J. Comput. Phys.
Takashi Shiroto, Tomohiko Watanabe
2025 J jnl
Application of field-aligned coordinates to a spectral reduced MHD code for simulation of ballooning mode turbulence.
Comput. Phys. Commun.
Ayumi Takano, Tomohiko Watanabe
2025 J jnl
Rotating flux-tube model for local gyrokinetic simulations with background flow and magnetic shears.
J. Comput. Phys.
Shinya Maeyama, Tomohiko Watanabe, Motoki Nakata, Masanori Nunami, Yuuichi Asahi, Akihiro Ishizawa
2021 J jnl
Contour dynamics for one-dimensional Vlasov-Poisson plasma with the periodic boundary.
J. Comput. Phys.
Hiroki Sato, Tomohiko Watanabe, Shinya Maeyama
2021 J jnl
Moment extract method for drift kinetic simulation of magnetized plasma.
J. Comput. Phys.
Kenji Nishioka, Tomohiko Watanabe, Shinya Maeyama
2020 — conf
5.7 A 132dB Single-Exposure-Dynamic-Range CMOS Image Sensor with High Temperature Tolerance.
ISSCC
Yorito Sakano, Takahiro Toyoshima, Ryosuke Nakamura, Tomohiko Asatsuma, Yuki Hattori, Takayuki Yamanaka, Ryoichi Yoshikawa, Naoki Kawazu, Tomohiro Matsuura, Takahiro Iinuma, Takahiro Toya, Tomohiko Watanabe, Atsushi Suzuki, Yuichi Motohashi, Junichiro Azami, Yasushi Tateshita, Tsutomu Haruta
2019 J jnl
Implementation of a gyrokinetic collision operator with an implicit time integration scheme and its computational performance.
Comput. Phys. Commun.
Shinya Maeyama, Tomohiko Watanabe, Yasuhiro Idomura, Motoki Nakata, Masanori Nunami
2015 J jnl
Improved collision operator for plasma kinetic simulations with multi-species ions and electrons.
Comput. Phys. Commun.
Motoki Nakata, Masanori Nunami, Tomohiko Watanabe, Hideo Sugama
2015 J jnl
Improved strong scaling of a spectral/finite difference gyrokinetic code for multi-scale plasma turbulence.
Parallel Comput.
Shinya Maeyama, Tomohiko Watanabe, Yasuhiro Idomura, Motoki Nakata, Masanori Nunami, Akihiro Ishizawa
2014 J jnl
Communication-overlap techniques for improved strong scaling of gyrokinetic Eulerian code beyond 100k cores on the K-computer.
Int. J. High Perform. Comput. Appl.
Yasuhiro Idomura, Motoki Nakata, Susumu Yamada, Masahiko Machida, Toshiyuki Imamura, Tomohiko Watanabe, Masanori Nunami, Hikaru Inoue, Shigenobu Tsutsumi, Ikuo Miyoshi, Naoyuki Shida
2013 J jnl
Numerical techniques for parallel dynamics in electromagnetic gyrokinetic Vlasov simulations.
Comput. Phys. Commun.
Shinya Maeyama, Akihiro Ishizawa, Tomohiko Watanabe, Noriyoshi Nakajima, Shunji Tsuji-Iio, Hiroaki Tsutsui
2012 J jnl
A hybrid method of semi-Lagrangian and additive semi-implicit Runge-Kutta schemes for gyrokinetic Vlasov simulations.
Comput. Phys. Commun.
Shinya Maeyama, Akihiro Ishizawa, Tomohiko Watanabe, Noriyoshi Nakajima, Shunji Tsuji-Iio, Hiroaki Tsutsui
2012 — conf
Abstract: Communication Overlap Techniques for Improved Strong Scaling of Gyrokinetic Eulerian Code beyond 100k Cores on the K-Computer.
SC Companion
Yasuhiro Idomura, Motoki Nakata, Susumu Yamada, Masahiko Machida, Toshiyuki Imamura, Tomohiko Watanabe, Masanori Nunami, Hikaru Inoue, Shigenobu Tsutsumi, Ikuo Miyoshi, Naoyuki Shida
2012 — conf
Poster: Communication Overlap Techniques for Improved Strong Scaling of Gyrokinetic Eulerian Code beyond 100k Cores on the K-Computer.
SC Companion
Yasuhiro Idomura, Motoki Nakata, Susumu Yamada, Masahiko Machida, Toshiyuki Imamura, Tomohiko Watanabe, Masanori Nunami, Hikaru Inoue, Shigenobu Tsutsumi, Ikuo Miyoshi, Naoyuki Shida
2010 J jnl
Benchmark test of drift-kinetic and gyrokinetic codes through neoclassical transport simulations.
Comput. Phys. Commun.
S. Satake, Yasuhiro Idomura, Hideo Sugama, Tomohiko Watanabe