Search Results - "Uno, Atsuya"

Classifying jobs towards power-aware HPC system operation through long-term log analysis by Tsujita, Yuichi, Uno, Atsuya, Sekizawa, Ryuichi, Yamamoto, Keiji, Sueyasu, Fumichika

“…The efficient utilization of high-performance computing (HPC) system resources under rigorous electric power budget or I/O workload constraints is among 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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Statistics of energy transfer in high-resolution direct numerical simulation of turbulence in a periodic box by AOYAMA, Tomohiro, ISHIHARA, Takashi, KANEDA, Yukio, YOKOKAWA, Mitsuo, ITAKURA, Kenichi, UNO, Atsuya

“…The statistics of energy transfer is studied by using the data of a series of high-resolution direct numerical simulations of incompressible homogeneous…”
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Energy spectrum in the near dissipation range of high resolution direct numerical simulation of turbulence by ISHIHARA, Takashi, KANEDA, Yukio, YOKOKAWA, Mitsuo, ITAKURA, Kenichi, UNO, Atsuya

“…The energy spectrum in the near dissipation range of turbulence is studied by analyzing the data of a series of high-resolution direct numerical simulations of…”
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Spectra of energy dissipation, enstrophy and pressure by high-resolution direct numerical simulations of turbulence in a periodic box by ISHIHARA, Takashi, KANEDA, Yukio, YOKOKAWA, Mitsuo, ITAKURA, Ken'Ichi, UNO, Atsuya

“…The spectra of the squares of velocity quadratics including the energy dissipation rate [straight epsilon] per unit mass, the enstrophy ω2 and the pressure p…”
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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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Job Classification Through Long-Term Log Analysis Towards Power-Aware HPC System Operation by Tsujita, Yuichi, Uno, Atsuya, Sekizawa, Ryuichi, Yamamoto, Keiji, Sueyasu, Fumichika

“…High utilization of HPC system resources under constraints in electric power consumption or I/O workload is one of the primary goals to deal with high demand…”
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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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Big Data Assimilation: Real-Time 30-Second-Refresh Heavy Rain Forecast Using Fugaku During Tokyo Olympics and Paralympics by Miyoshi, Takemasa, Amemiya, Arata, Otsuka, Shigenori, Maejima, Yasumitsu, Taylor, James, Honda, Takumi, Tomita, Hirofumi, Nishizawa, Seiya, Sueki, Kenta, Yamaura, Tsuyoshi, Ishikawa, Yutaka, Satoh, Shinsuke, Ushio, Tomoo, Koike, Kana, Uno, Atsuya

“…Real-time 30-second-refresh numerical weather prediction (NWP) was performed with exclusive use of 11,580 nodes (~7%) of supercomputer Fugaku during Tokyo…”
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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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An Implementation of Parallel 1-D FFT on the K Computer by Takahashi, D., Uno, A., Yokokawa, M.

“…In this paper, we propose an implementation of a parallel one-dimensional fast Fourier transform (FFT) on the K computer. The proposed algorithm is based on…”
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16.4-Tflops Direct Numerical Simulation of Turbulence by a Fourier Spectral Method on the Earth Simulator by Yokokawa, M., Itakura, K., Uno, A., Ishihara, T., Kaneda, Y.

“…The high-resolution direct numerical simulations (DNSs) of incompressible turbulence with numbers of grid points up to 40963 have been executed on the Earth…”
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16.4-Tflops direct numerical simulation of turbulence by a Fourier spectral method on the Earth Simulator by Yokokawa, Mitsuo, Itakura, Ken'ichi, Uno, Atsuya, Ishihara, Takashi, Kaneda, Yukio

“…The high-resolution direct numerical simulations (DNSs) of incompressible turbulence with numbers of grid points up to 40963 have been executed on the Earth…”
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Inter-vehicle communications for merging control by Sakaguchi, T., Uno, A., Tsugawa, S.

“…This paper proposes a data transmission algorithm over inter-vehicle communications and a merging control algorithm, and describes the simulation studies and…”
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