著者

村田 孝雄 T. Murata

雑誌

中京大学教養論叢 = Chukyo University bulletin of the Faculty of Liberal Arts (ISSN:02867982)

巻号頁・発行日

vol.13, no.2, pp.35-45, 1972-10-01

著者

村田 孝雄 T. Murata

雑誌

中京大学教養論叢 = Chukyo University bulletin of the Faculty of Liberal Arts (ISSN:02867982)

巻号頁・発行日

vol.13, no.1, pp.1-22, 1972-07-01

著者

Ken T. Murata Hidenobu Watanabe Kazunori Yamamoto Eizen Kimura Masahiro Tanaka Osamu Tatebe Kentaro Ukawa Kazuya Muranaga Yutaka Suzuki Hirotsugu Kojima

出版者

(社)電子情報通信学会

雑誌

IEICE Communications Express (ISSN:21870136)

巻号頁・発行日

vol.3, no.2, pp.74-79, 2014-02-25 (Released:2014-02-25)

参考文献数

6

被引用文献数

4 7

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A variety of satellite missions are carried out every year. Most of the satellites yield big data, and high-performance data processing technologies are expected. We have been developing a cloud system (the NICT Science Cloud) for big data analyses of Earth and Space observations via spacecraft. In the present study, we propose a new technique to process big data considering the fact that high-speed I/O (data file read and write) is important compared with data processing speed. We adopt a task scheduler, the Pwrake, for easy development and management of parallel data processing. Using a set of long-time scientific satellite observation data (GEOTAIL satellite), we examine the performance of the system on the NICT Science Cloud. We successfully archived high-speed data processing more than 100 times faster than those on traditional data processing environments.