{"metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00113267","sets":["1164:2240:7894:7895"]},"path":["7895"],"owner":"11","recid":"113267","title":["実時間ゲリラ豪雨予測システムのためのファイルI/O調停ミドルウェア"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-02-23"},"_buckets":{"deposit":"b4bdc52e-6c37-47d4-98d8-3e890c834b0f"},"_deposit":{"id":"113267","pid":{"type":"depid","value":"113267","revision_id":0},"owners":[11],"status":"published","created_by":11},"item_title":"実時間ゲリラ豪雨予測システムのためのファイルI/O調停ミドルウェア","author_link":["37574","37578","37573","37581","37579","37575","37580","37567","37577","37566","37568","37572","37571","37576","37570","37569"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"実時間ゲリラ豪雨予測システムのためのファイルI/O調停ミドルウェア"},{"subitem_title":"File I/O Arbitrator Middleware for Real-Time Severe Weather Prediction System","subitem_title_language":"en"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"ネットワーク","subitem_subject_scheme":"Other"}]},"item_type_id":"4","publish_date":"2015-02-23","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"東京大学情報理工学系研究科"},{"subitem_text_value":"理化学研究所計算科学研究機構"},{"subitem_text_value":"理化学研究所計算科学研究機構"},{"subitem_text_value":"理化学研究所計算科学研究機構"},{"subitem_text_value":"理化学研究所計算科学研究機構"},{"subitem_text_value":"理化学研究所計算科学研究機構"},{"subitem_text_value":"理化学研究所計算科学研究機構"},{"subitem_text_value":"理化学研究所計算科学研究機構"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_publisher":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"情報処理学会","subitem_publisher_language":"ja"}]},"publish_status":"0","weko_shared_id":-1,"item_file_price":{"attribute_name":"Billing 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裕"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Gerofi, Balazs"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Guo-yuan, Lien"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"三好, 建正"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"大塚, 成徳"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"富田, 浩文"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"西澤, 誠也"}],"nameIdentifiers":[{}]}]},"item_4_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Tomoyuki, Saito","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Yutaka, Ishikawa","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Gerofi, Balazs","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Guo-yuan, Lien","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Takemasa, Miyoshi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Shigenori, Otsuka","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Hirofumi, Tomita","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Seiya, Nishizawa","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN10463942","subitem_source_identifier_type":"NCID"}]},"item_4_textarea_12":{"attribute_name":"Notice","attribute_value_mlt":[{"subitem_textarea_value":"SIG Technical Reports are nonrefereed and hence may later appear in any journals, conferences, symposia, etc."}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourceuri":"http://purl.org/coar/resource_type/c_18gh","resourcetype":"technical report"}]},"item_4_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"30 秒毎の最新気象観測データから 30 分後のゲリラ豪雨を予測するシステムを開発している．本システムでは，100 ケースの 30 秒アンサンブル気象シミュレーション結果と 30 秒毎の最新気象観測データを同化する．気象シミュレーションプログラムとデータ同化プログラムは別々に開発されており，データ交換はファイル渡しになっている．ファイル渡しによる非効率なデータ転送ではなく，気象系で使われている netCDF API を拡張子し，2 つのジョブのプロセス間で効率の良いデータ転送を提供する File I/O Arbitrator (FARB) を提案する．MPI 通信ライブラリを通信層とした実装を行った．既存ファイル I/O を用いた場合に比べて，3 倍以上の性能向上，2.6 秒以上の I/O 処理時間削減を達成している．","subitem_description_type":"Other"}]},"item_4_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"A high-resolution 30-minute numerical weather prediction system, using weather observable data that is available every 30 seconds, is being developed. In this system, 100-case ensemble simulations and data assimilation of results and observed data are performed every 30 seconds to predict 30 minute weather. Because the simulation and data assimilation programs are independently developed, data is exchanged via files. The middle-ware of a file I/O arbitrator, called FARB, is proposed to reduce the data exchange overhead between simulations and data assimilation. FARB extends the netCDF API, widely used as file I/O API in weather/climate applications, so that data is directory transferred between two jobs. FARB has been implemented using the MPI communication library. It performs more than three times faster than file I/O operations, and it reduces more than 2.6 second I/O processing time.","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"7","bibliographic_titles":[{"bibliographic_title":"研究報告ハイパフォーマンスコンピューティング（HPC）"}],"bibliographicPageStart":"1","bibliographicIssueDates":{"bibliographicIssueDate":"2015-02-23","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"37","bibliographicVolumeNumber":"2015-HPC-148"}]},"relation_version_is_last":true,"weko_creator_id":"11"},"id":113267,"updated":"2025-01-20T19:43:45.042381+00:00","links":{},"created":"2025-01-18T23:54:53.048007+00:00"}