Keiji Yamamoto

According to our database, Keiji Yamamoto authored at least 28 papers between 2002 and 2024.

Collaborative distances:

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

2024

Toward Sustainable HPC: In-Production Deployment of Incentive-Based Power Efficiency Mechanism on the Fugaku Supercomputer.

Ana Luisa Veroneze Solórzano, Kento Sato, Keiji Yamamoto, Fumiyoshi Shoji, Jim M. Brandt, Benjamin Schwaller, Sara Petra Walton, Jennifer Green, Devesh Tiwari

Proceedings of the International Conference for High Performance Computing, 2024

On the Building of a Common In-Situ Visualization Environment for Arm A64FX Supercomputers.

Jorji Nonaka, Masahiro Nakao, Hitoshi Murai, Keiji Yamamoto, Masaaki Terai, Tomohiro Kawanabe, Toshihiko Kai, Fumiyoshi Shoji, Daichi Obinata, Hiroyuki Ito, Shunji Uno, Takanori Haga, Manabu Motokawa, Atsushi Fujino, Naoyuki Fujita, Seiji Tsutsumi, Atsushi Toyoda, Naohisa Sakamoto

Proceedings of the IEEE International Conference on Cluster Computing, 2024

Toward Providing Root Privilege to Flagship HPC Users with Thin-Hypervisor.

Takaaki Fukai, Manami Mori, Keiji Yamamoto, Takahiro Hirofuchi, Takuya Asaka

Proceedings of the IEEE International Conference on Cluster Computing, 2024

2023

Optimization Algorithm with Automatic Adjustment of the Number of Switches in the Order/Radix Problem.

Masaki Tsukamoto, Yoshiko Hanada, Masahiro Nakao, Keiji Yamamoto

IEICE Trans. Inf. Syst., December, 2023

Reflections on the Developments of Visual Analytics Systems for the K Computer System Log Data.

Jorji Nonaka, Keijiro Fujita, Takanori Fujiwara, Naohisa Sakamoto, Keiji Yamamoto, Masaaki Terai, Toshiyuki Tsukamoto, Fumiyoshi Shoji

Proceedings of the Gap between Visualization Research and Visualization Software, 2023

Introducing Open OnDemand to Supercomputer Fugaku.

Masahiro Nakao, Hidetomo Kaneyama, Masaru Nagaku, Ikki Fujiwara, Atsuko Takefusa, Shin'ichi Miura, Keiji Yamamoto

Proceedings of the SC '23 Workshops of The International Conference on High Performance Computing, 2023

Augmenting ML-based Predictive Modelling with NLP to Forecast a Job's Power Consumption.

Francesco Antici, Keiji Yamamoto, Jens Domke, Zeynep Kiziltan

Proceedings of the SC '23 Workshops of The International Conference on High Performance Computing, 2023

Autonomy Loops for Monitoring, Operational Data Analytics, Feedback, and Response in HPC Operations.

Francieli Boito, Jim M. Brandt, Valeria Cardellini, Philip H. Carns, Florina M. Ciorba, Hilary Egan, Ahmed Eleliemy, Ann C. Gentile, Thomas Gruber, Jeff Hanson, Utz-Uwe Haus, Kevin A. Huck, Thomas Ilsche, Thomas Jakobsche, Terry R. Jones, Sven Karlsson, Abdullah Mueen, Michael Ott, Tapasya Patki, Ivy Peng, Krishnan Raghavan, Stephen Simms, Kathleen Shoga, Michael T. Showerman, Devesh Tiwari, Torsten Wilde, Keiji Yamamoto

Proceedings of the IEEE International Conference on Cluster Computing, 2023

2022

Graph optimization algorithm using symmetry and host bias for low-latency indirect network.

Masahiro Nakao, Masaki Tsukamoto, Yoshiko Hanada, Keiji Yamamoto

Parallel Comput., 2022

Classifying jobs towards power-aware HPC system operation through long-term log analysis.

Yuichi Tsujita, Atsuya Uno, Ryuichi Sekizawa, Keiji Yamamoto, Fumichika Sueyasu

Array, 2022

2021

A Visual Analytics Framework for Reviewing Multivariate Time-Series Data with Dimensionality Reduction.

Takanori Fujiwara, Shilpika, Naohisa Sakamoto, Jorji Nonaka, Keiji Yamamoto, Kwan-Liu Ma

IEEE Trans. Vis. Comput. Graph., 2021

An Operational Data Collecting and Monitoring Platform for Fugaku: System Overviews and Case Studies in the Prelaunch Service Period.

Masaaki Terai, Keiji Yamamoto, Shin'ichi Miura, Fumiyoshi Shoji

Proceedings of the High Performance Computing - ISC High Performance Digital 2021 International Workshops, Frankfurt am Main, Germany, June 24, 2021

Job Classification Through Long-Term Log Analysis Towards Power-Aware HPC System Operation.

Yuichi Tsujita, Atsuya Uno, Ryuichi Sekizawa, Keiji Yamamoto, Fumichika Sueyasu

Proceedings of the 29th Euromicro International Conference on Parallel, 2021

2020

Characterizing I/O Optimization Effect Through Holistic Log Data Analysis of Parallel File Systems and Interconnects.

Yuichi Tsujita, Yoshitaka Furutani, Hajime Hida, Keiji Yamamoto, Atsuya Uno

Proceedings of the High Performance Computing, 2020

2019

Modeling the Existing Cooling System to Learn its Behavior for Post-K Supercomputer at RIKEN R-CCS.

Motohiko Matsuda, Hiroya Matsuba, Jorji Nonaka, Keiji Yamamoto, Hiroshi Shibata, Toshiyuki Tsukamoto

Proceedings of the 48th International Conference on Parallel Processing, 2019

2018

Classifying Jobs and Predicting Applications in HPC Systems.

Keiji Yamamoto, Yuichi Tsujita, Atsuya Uno

Proceedings of the High Performance Computing - 33rd International Conference, 2018

I/O Interference Alleviation on Parallel File Systems Using Server-Side QoS-Based Load-Balancing.

Yuichi Tsujita, Yoshitaka Furutani, Hajime Hida, Keiji Yamamoto, Atsuya Uno, Fumichika Sueyasu

Proceedings of the High Performance Computing, 2018

2017

Alleviating I/O Interference Through Workload-Aware Striping and Load-Balancing on Parallel File Systems.

Yuichi Tsujita, Tatsuhiko Yoshizaki, Keiji Yamamoto, Fumichika Sueyasu, Ryoji Miyazaki, Atsuya Uno

Proceedings of the High Performance Computing - 32nd International Conference, 2017

2015

Transmit power control and channel assignment for femto cells in HetNet systems using genetic algorithm.

Kohta Nakamura, Taichi Tashiro, Keiji Yamamoto, Kenichi Ohno

Proceedings of the 26th IEEE Annual International Symposium on Personal, 2015

2014

The K computer Operations: Experiences and Statistics.

Keiji Yamamoto, Atsuya Uno, Hitoshi Murai, Toshiyuki Tsukamoto, Fumiyoshi Shoji, Shuji Matsui, Ryuichi Sekizawa, Fumichika Sueyasu, Hiroshi Uchiyama, Mitsuo Okamoto, Nobuo Ohgushi, Katsutoshi Takashina, Daisuke Wakabayashi, Yuki Taguchi, Mitsuo Yokokawa

Proceedings of the International Conference on Computational Science, 2014

2012

Poster: Distributed Metadata Management for Exascale Parallel File System.

Keiji Yamamoto, Atsushi Hori, Yutaka Ishikawa

Proceedings of the 2012 SC Companion: High Performance Computing, 2012

2011

Catwalk-ROMIO: A Cost-Effective MPI-IO.

Atsushi Hori, Keiji Yamamoto, Yutaka Ishikawa

Proceedings of the 17th IEEE International Conference on Parallel and Distributed Systems, 2011

Xruntime: A Seamless Runtime Environment for High Performance Computing.

Keiji Yamamoto, Atsushi Hori, Shinji Sumimoto, Yutaka Ishikawa

Proceedings of the 13th IEEE International Conference on High Performance Computing & Communication, 2011

2008

Integration of Temporal Subtraction and Nodule Detection System for Digital Chest Radiographs into Picture Archiving and Communication System (PACS): Four-year Experience.

Shuji Sakai, Hidetake Yabuuchi, Yoshio Matsuo, Takashi Okafuji, Takeshi Kamitani, Hiroshi Honda, Keiji Yamamoto, Keiichi Fujiwara, Naoki Sugiyama, Kunio Doi

J. Digit. Imaging, 2008

2006

Computer-Aided Nodule Detection on Digital Chest Radiography: Validation Test on Consecutive T1 Cases of Resectable Lung Cancer.

Shuji Sakai, Hiroyasu Soeda, Naoki Takahashi, Takashi Okafuji, Tadamasa Yoshitake, Hidetake Yabuuchi, Ichiro Yoshino, Keiji Yamamoto, Hiroshi Honda, Kunio Doi

J. Digit. Imaging, 2006

Evaluation of the Image Quality of Temporal Subtraction Images Produced Automatically in a PACS Environment.

Shuji Sakai, Hiroyasu Soeda, Akio Furuya, Hidetake Yabuuchi, Takashi Okafuji, Keiji Yamamoto, Hiroshi Honda, Kunio Doi

J. Digit. Imaging, 2006

Portable Execution Time Analysis Method.

Keiji Yamamoto, Yutaka Ishikawa, Toshihiro Matsui

Proceedings of the 12th IEEE Conference on Embedded and Real-Time Computing Systems and Applications (RTCSA 2006), 2006

2002

Speculative computation with multi-agent belief revision.

Ken Satoh, Keiji Yamamoto

Proceedings of the First International Joint Conference on Autonomous Agents & Multiagent Systems, 2002