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Real-Time Data Streaming and Storing Structure for the LHD’s Fusion Plasma Experiments
http://hdl.handle.net/10655/00012764
http://hdl.handle.net/10655/0001276453060067-3e94-4df1-b4ff-b1e77ee9744e
名前 / ファイル | ライセンス | アクション |
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IEEE_Trans.Nucl.Sci.63_pp222 (1.4 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2021-12-16 | |||||
タイトル | ||||||
タイトル | Real-Time Data Streaming and Storing Structure for the LHD’s Fusion Plasma Experiments | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
NAKANISHI, Hideya
× NAKANISHI, Hideya× Ohsuna, Masaki× Kojima, Mamoru× Imazu, Setsuo× NONOMURA, Miki× EMOTO, Masahiko× YOSHIDA, Masanobu× IWATA, Chie× IDA, Katsumi |
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著者ID | ||||||
内容記述タイプ | Other | |||||
内容記述 | 0000-0001-6388-4489 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The LHD data acquisition and archiving system, i.e., LABCOM system, has been fully equipped with high-speed real-time acquisition, streaming, and storage capabilities. To deal with more than 100 MB/s continuously generated data at each data acquisition (DAQ) node, DAQ tasks have been implemented as multitasking and multithreaded ones in which the shared memory plays the most important role for inter-process fast and massive data handling. By introducing a 10-second time chunk named “subshot,” endless data streams can be stored into a consecutive series of fixed length data blocks so that they will soon become readable by other processes even while the write process is continuing. Real-time device and environmental monitoring are also implemented in the same way with further sparse resampling. The central data storage has been separated into two layers to be capable of receiving multiple 100 MB/s inflows in parallel. For the frontend layer, high-speed SSD arrays are used as the GlusterFS distributed filesystem which can provide max. 2 GB/s throughput. Those design optimizations would be informative for implementing the next-generation data archiving system in big physics, such as ITER. | |||||
書誌情報 |
IEEE Transactions on Nuclear Science 巻 63, 号 1, p. 222-227, 発行日 2016-02 |
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出版者 | ||||||
出版者 | IEEE | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0018-9499 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1109/TNS.2016.2515099 | |||||
権利 | ||||||
権利情報 | © 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. | |||||
情報源 | ||||||
関連名称 | H. Nakanishi et al., "Real-Time Data Streaming and Storing Structure for the LHD’s Fusion Plasma Experiments," in IEEE Transactions on Nuclear Science, vol. 63, no. 1, pp. 222-227, Feb. 2016, doi: 10.1109/TNS.2016.2515099. | |||||
関連サイト | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1109/TNS.2016.2515099 | |||||
関連名称 | Publisher version | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
NAIS | ||||||
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