Search Results - "Shoji, Fumiyoshi"

A Study of Operational Impact on Power Usage Effectiveness using Facility Metrics and Server Operation Logs in the K Computer by Terai, Masaaki, Shoji, Fumiyoshi, Tsukamoto, Toshiyuki, Yamochi, Yukihiro

“…The official service period of the K computer ended in 2019. Most of the equipment has been enhanced and are being used as part of the infrastructure of the…”
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The K computer: Japanese next-generation supercomputer development project by Yokokawa, M., Shoji, F., Uno, A., Kurokawa, M., Watanabe, T.

“…The K computer is a distributed memory supercomputer system consisting of more than 80,000 compute nodes which is being developed by RIKEN as a Japanese…”
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High-speed classification of coherent X-ray diffraction patterns on the K computer for high-resolution single biomolecule imaging by Tokuhisa, Atsushi, Arai, Junya, Joti, Yasumasa, Ohno, Yoshiyuki, Kameyama, Toyohisa, Yamamoto, Keiji, Hatanaka, Masayuki, Gerofi, Balazs, Shimada, Akio, Kurokawa, Motoyoshi, Shoji, Fumiyoshi, Okada, Kensuke, Sugimoto, Takashi, Yamaga, Mitsuhiro, Tanaka, Ryotaro, Yokokawa, Mitsuo, Hori, Atsushi, Ishikawa, Yutaka, Hatsui, Takaki, Go, Nobuhiro

“…Single‐particle coherent X‐ray diffraction imaging using an X‐ray free‐electron laser has the potential to reveal the three‐dimensional structure of a…”
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Lessons learned from development and operation of the K computer by Shoji, Fumiyoshi

“…•Operational experiences of one of the most powerful supercomputer is reported.•Failure rates of major components and MTBF are evaluated.•The causes of severe…”
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EE HPC SOP 2020 Energy Efficient High Performance Computing State of the Practice Workshop : Welcome Message

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HUD-Oden: A Practical Evaluation Environment for Analyzing Hot-Water Cooled Processors by Nonaka, Jorji, Shoji, Fumiyoshi

“…Liquid cooling has been rapidly becoming the de facto standard cooling method for high performance/density racks of modern HPC Data Centers. Semiconductor…”
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Analysis of Cooling Water Temperature Impact on Computing Performance and Energy Consumption by Nonaka, Jorji, Hanawa, Toshihiro, Shoji, Fumiyoshi

“…The hot water cooling technique has been widely accepted as one of the standard techniques to improve the energy efficiency for the HPC and Data Centers…”
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Extremely Scalable Algorithm for 108-atom Quantum Material Simulation on the Full System of the K Computer by Hoshi, Takeo, Imachi, Hiroto, Kumahata, Kiyoshi, Terai, Masaaki, Miyamoto, Kengo, Minami, Kazuo, Shoji, Fumiyoshi

“…An extremely scalable linear-algebraic algorithm was developed for quantum material simulation (electronic state calculation) with 108 atoms or 100-nm-scale…”
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The design of ultra scalable MPI collective communication on the K computer by Adachi, Tomoya, Shida, Naoyuki, Miura, Kenichi, Sumimoto, Shinji, Uno, Atsuya, Kurokawa, Motoyoshi, Shoji, Fumiyoshi, Yokokawa, Mitsuo

“…This paper proposes the design of ultra scalable MPI collective communication for the K computer, which consists of 82,944 computing nodes and is the world’s…”
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Characterizing I/O and Storage Activity on the K Computer for Post-Processing Purposes by Inacio, Eduardo C., Nonaka, Jorji, Ono, Kenji, Dantas, Mario A. R., Shoji, Fumiyoshi

“…An increasing volume of data is produced by computational science applications executing on flagship-class supercomputers, such as the K computer. Most of…”
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Enhanced Simulation and Analysis of Air Pollutants Using Multi-Platform HPC and In-Situ Visualization by Bi, Chongke, Shoji, Fumiyoshi, Ono, Kenji, Sakamoto, Naohisa, Nonaka, Jorji, Yin, Honggang, Cui, Wenjuan

“…Based on the strengths of both China and Japan in high-performance computing (HPC), this paper presents a collaborative project between the two countries. The…”
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K computer: 8.162 PetaFLOPS massively parallel scalar supercomputer built with over 548k cores by Miyazaki, H., Kusano, Y., Okano, H., Nakada, T., Seki, K., Shimizu, T., Shinjo, N., Shoji, F., Uno, A., Kurokawa, M.

“…Many high-performance CPUs employ a multicore architecture with a moderate clock frequency and wide instruction issue, including SIMD extensions, to achieve…”
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On the Building of a Common In-Situ Visualization Environment for Arm A64FX Supercomputers by Nonaka, Jorji, Nakao, Masahiro, Murai, Hitoshi, Yamamoto, Keiji, Terai, Masaaki, Kawanabe, Tomohiro, Kai, Toshihiko, Shoji, Fumiyoshi, Obinata, Daichi, Ito, Hiroyuki, Uno, Shunji, Haga, Takanori, Motokawa, Manabu, Fujino, Atsushi, Fujita, Naoyuki, Tsutsumi, Seiji, Toyoda, Atsushi, Sakamoto, Naohisa

“…This poster presents a collaborative activity among R-CCS and JAXA towards the development of a common in-situ visualization infrastructure on the Arm A64FX…”
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Improving the energy efficiencies of power supply and cooling facilities for 10 peta-scale supercomputer by Shoji, Fumiyoshi, Tanaka, Katsuyuki, Matsushita, Satoshi, Takitsuka, Hiroyuki, Tsukamoto, Toshiyuki, Yokokawa, Mitsuo

“…We report our operational experience of improving the energy efficiency of the power supply and cooling facilities of the K computer. By optimizing the number…”
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A Large Data Visualization Framework for SPARC64 fx HPC Systems - Case Study: K Computer Operational Environment by Nonaka, Jorji, Ono, Kenji, Sakamoto, Naohisa, Hayashi, Kengo, Matsuda, Motohiko, Shoji, Fumiyoshi, Oku, Kentaro, Fujita, Masahiro, Hatta, Kazuma

“…Leading-edge supercomputer systems have been designed to achieve the highest computational performance possible for running a wide variety of large-scale…”
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Extremely scalable algorithm for 108-atom quantum material simulation on the full system of the K computer by Hoshi, Takeo, Imachi, Hiroto, Kumahata, Kiyoshi, Terai, Masaaki, Miyamoto, Kengo, Minami, Kazuo, Shoji, Fumiyoshi

“…An extremely scalable linear-algebraic algorithm was developed for quantum material simulation (electronic state calculation) with 108 atoms or 100-nm-scale…”
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Extremely scalable algorithm for 10$^8$-atom quantum material simulation on the full system of the K computer by Hoshi, Takeo, Imachi, Hiroto, Kumahata, Kiyoshi, Terai, Masaaki, Miyamoto, Kengo, Minami, Kazuo, Shoji, Fumiyoshi

“…An extremely scalable linear-algebraic algorithm was developed for quantum material simulation (electronic state calculation) with 10$^8$ atoms or 100-nm-scale…”
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First-principles calculations of electron states of a silicon nanowire with 100,000 atoms on the K computer by Hasegawa, Yukihiro, Iwata, Jun-Ichi, Tsuji, Miwako, Takahashi, Daisuke, Oshiyama, Atsushi, Minami, Kazuo, Boku, Taisuke, Shoji, Fumiyoshi, Uno, Atsuya, Kurokawa, Motoyoshi, Inoue, Hikaru, Miyoshi, Ikuo, Yokokawa, Mitsuo

“…Real space DFT (RSDFT) is a simulation technique most suitable for massively-parallel architectures to perform first-principles electronic-structure…”
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Three topics of monopole dynamics in abelian projected QCD by Suzuki, Tsuneo, Matsubara, Yoshimi, Kitahara, Shun-ichi, Ejiri, Shinji, Nakamura, Naoki, Shoji, Fumiyoshi, Sei, Masafumi, Kato, Seikou, Arasaki, Natsuko

“…Three topics about monopole dynamics after abelian projection are reported. The first is the new and detailed analyses of SU(2) monopole action obtained after…”
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Nf = 1 QCD simulation with improved gauge action at finite temperature by Shoji, Fumiyoshi, Takaishi, Tetsuya

“…We study the deconfinement transition of N f = 1 QCD by the hybrid Monte Carlo algorithm with Wilson fermions. We calculate the Polyakov loop, its…”
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