Search Results - "Nanri, Takeshi"

Forward and backward multi-particle dispersion in homogeneous isotropic turbulence by ARAKAWA, Ryunosuke, KITAMURA, Takuya, SONOBE, Yohei, SAIMOTO, Akihide, NANRI, Takeshi

“…Turbulent diffusion in homogeneous isotropic turbulence is numerically investigated using the direct numerical simulation (DNS). The four-dimensional…”
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Memory Efficient One-Sided Communucation Library "ACP" in Globary Memory on Raspberry Pi 2 by Morie, Yoshiyuki, Honda, Hiroaki, Nanri, Takeshi, Kobayashi, Taizo, Shibamura, Hidetomo, Susukita, Ryutaro, Ajima, Yuichiro

“…Previously, communications in parallel programs for High Performance Computing (HPC) and Distributed Computing (DC) are mostly written with two-sided…”
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一様等方性乱流における前進および後退多粒子拡散 by 荒川, 隆之介, 北村, 拓也, 園部, 陽平, 才本, 明秀, 南里, 豪志

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Cross-Reference Simulation by Code-To-Code Adapter (CoToCoA) Library for the Study of Multi-Scale Physics in Planetary Magnetospheres by Katoh, Yuto, Fukazawa, Keiichiro, Nanri, Takeshi, Miyake, Yohei

“…We have developed a cross-reference simulation code by a newly developed Code-To-Code Adapter (CoToCoA) library for the study of wave-particle interactions in…”
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Application of Cross-Reference Framework CoToCoA to Macro- and Micro-Scale Simulations of Planetary Magnetospheres by Fukazawa, Keiichiro, Katoh, Yuto, Nanri, Takeshi, Miyake, Yohei

“…In this study, we have introduced the Code-to-Code Adapter (CoToCoA) library to couple the magnetohydrodynamic (MHD) simulation and the Electron Hybrid (EH)…”
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Optical properties of rutile TiO 2 with Zr, Mo, Zn, Cd impurities by Ohno, Kaoru, Sahara, Ryoji, Nanri, Takeshi, Kawazoe, Yoshiyuki

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Analysis of Storage Workloads of Input-Output Access Locality and Designing of Hybrid Storage System by Oe, Kazuichi, Nanri, Takeshi, Okamura, Koji

“…Hybrid storage systems consisting of SSDs and HDDs improve the performance of input-output (IO) access by migrating IO concentrations from HDDs to SSDs…”
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Attribute-based quality classification of academic papers by Nakatoh, Tetsuya, Hirokawa, Sachio, Minami, Toshiro, Nanri, Takeshi, Funamori, Miho

“…Investigating the relevant literature is very important for research activities. However, it is difficult to select the most appropriate and important academic…”
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Hybrid Storage System to Achieve Efficient Use of Fast Memory Area by Oe, Kazuichi, Nanri, Takeshi

“…Hybrid storage techniques are useful methods to improve the cost performance for input-output (IO) intensive workloads. These techniques choose areas of…”
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Non-volatile Memory Driver for Applying Automated Tiered Storage with Fast Memory and Slow Flash Storage by Oe, Kazuichi, Nanri, Takeshi

“…Automated tiered storage with fast memory and slow flash storage (ATSMF) is a hybrid storage system located between non-volatile memories (NVMs) and solid…”
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Automated Tiered Storage System Consisting of Memory and Flash Storage to Improve Response Time with Input-Output (IO) Concentration Workloads by Oe, Kazuichi, Sato, Mitsuru, Nanri, Takeshi

“…The response time of solid state drives (SSDs) has dramatically reduced according to the spread of non-volatile memory express (NVMe) devices. These devices…”
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On-the-Fly Automated Storage Tiering with Caching and both Proactive and Observational Migration by Oe, Kazuichi, Nanri, Takeshi, Okamura, Koji

“…A hybrid storage system consisting of SSDs and HDDs improves the performance of user IOs by moving IO concentrated areas from the HDDs to the SSDs. It is…”
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Feasibility Study for Building Hybrid Storage System Consisting of Non-volatile DIMM and SSD by Oe, Kazuichi, Nanri, Takeshi, Okamura, Koji

“…Various vendors develop a byte accessible Nonvolatile Dual-Inline Memory Module (NVDIMM). The performance of the NVDIMM drastically surpasses that of the Solid…”
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Effect of dynamic algorithm selection of Alltoall communication on environments with unstable network speed by Nanri, Takeshi, Kurokawa, Motoyoshi

“…As the HPC systems increase their size, performance of collective communications is becoming an important issue. Usually, decisions for which algorithm of…”
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NSIM-ACE: An interconnection network simulator for evaluating remote direct memory access by Susukita, Ryutaro, Morie, Yoshiyuki, Nanri, Takeshi, Shibamura, Hidetomo

“…Network simulation is an important technique for designing interconnection networks and communication libraries. Also network simulations are useful for the…”
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Performance Improvement of High-Speed File Transfer Over JHPCN by Pavarangkoon, Praphan, Nanri, Takeshi, Murata, Ken T., Yamamoto, Kazunori, Muranaga, Kazuya, Mizuhara, Takamichi, Fukazawa, Keiichiro, Egawa, Ryusuke, Katagiri, Takahiro, Ogino, Masao

“…This paper proposes a novel file transfer tool to improve file transfer performance over Japan high performance computing and networking (JHPCN). We first…”
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Performance Analysis and Linear Optimization Modeling of All-to-all Collective Communication Algorithms by Mamadou, H.N., de Melo Baptista Domingues, G., Nanri, T., Murakami, K.

“…The performance of collective communication operations still represents a critical issue for high performance computing systems. Users of parallel machines…”
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Channel Interface: A Primitive Model for Memory Efficient Communication by Nanri, Takeshi, Soga, Takeshi, Ajima, Yuichiro, Morie, Yoshiyuki, Honda, Hiroaki, Kobayashi, Taizo, Takami, Toshiya, Sumimoto, Shinji

“…Though the size of the system is getting larger towards exa-scale computation, the amount of available memory on computing nodes is expected to remain the same…”
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Task Allocation Optimization for Neighboring Communication on Fat Tree by Morie, Y., Nanri, T.

“…This paper proposes a task allocation optimization for neighboring communications on a fat tree. The proposed method finds an appropriate task allocation that…”
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Performance of Large Scale MHD Simulation of Global Planetary Magnetosphere with Massively Parallel Scalar Type Supercomputer Including Post Processing by Fukazawa, K., Nanri, T.

“…To use the massively parallel scalar type supercomputer for the large scale numerical magnetospheric simulation, the computational performance of…”
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