{"metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00107316","sets":["1164:2240:7465:7756"]},"path":["7756"],"owner":"11","recid":"107316","title":["一様等方性乱流の直接数値シミュレーションコードの京コンピュータ向け最適化"],"pubdate":{"attribute_name":"公開日","attribute_value":"2014-12-02"},"_buckets":{"deposit":"21636766-a224-4b81-8a82-91b47c4d3138"},"_deposit":{"id":"107316","pid":{"type":"depid","value":"107316","revision_id":0},"owners":[11],"status":"published","created_by":11},"item_title":"一様等方性乱流の直接数値シミュレーションコードの京コンピュータ向け最適化","author_link":["16597","16599","16596","16598","16595"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"一様等方性乱流の直接数値シミュレーションコードの京コンピュータ向け最適化"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"シミュレーション","subitem_subject_scheme":"Other"}]},"item_type_id":"4","publish_date":"2014-12-02","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"神戸大学"},{"subitem_text_value":"神戸大学"},{"subitem_text_value":"理化学研究所計算科学研究機構"},{"subitem_text_value":"名古屋大学"},{"subitem_text_value":"愛知工業大学"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Kobe University","subitem_text_language":"en"},{"subitem_text_value":"Kobe University","subitem_text_language":"en"},{"subitem_text_value":"RIKEN AICS","subitem_text_language":"en"},{"subitem_text_value":"Nagoya University","subitem_text_language":"en"},{"subitem_text_value":"Aichi Institute of Technology","subitem_text_language":"en"}]},"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 file","attribute_type":"file","attribute_value_mlt":[{"url":{"url":"https://ipsj.ixsq.nii.ac.jp/record/107316/files/IPSJ-HPC14147017.pdf"},"date":[{"dateType":"Available","dateValue":"2016-12-02"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-HPC14147017.pdf","filesize":[{"value":"3.4 MB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"660","billingrole":"5"},{"tax":["include_tax"],"price":"330","billingrole":"6"},{"tax":["include_tax"],"price":"0","billingrole":"14"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"81c2d669-ff9b-4b24-a493-ec01772d6de5","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2014 by the Information Processing Society of Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"森下, 浩二"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"横川, 三津夫"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"宇野, 篤也"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"石原, 卓"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"金田, 行雄"}],"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":"現在日本最速のスーパーコンピュータである 「京」 を用いて，一様等方性乱流の超大規模直接数値シミュレーション （DNS） を実現するために，地球シミュレータ向けに開発された，フーリエ・スペクトル法に基づく一様等方性乱流の DNS コードの 「京」 への移植，及び最適化を行った．移植の際には，従来の 1 次元分割によるデータ分散手法から，より効率的な All-to-all 通信が可能であると考えられる 2 次元分割による手法へと変更を行った．その結果，「京」 の 192×128 ノードを用いて最大格子点数 122883 の超大規模 DNS の実現に成功した．これはプロダクトランとしては世界最大の一様等方性乱流の DNS である．ピーク性能比として，格子点数 61443，81923，122883 の DNS でそれぞれ 3.84%，3.14%，2.24% の実効性能が得られた．また，コードの更なる高効率化のために，乱流 DNS 特有のアルゴリズムに対する最適化を試み，その性能評価を行った．","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"5","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":"2014-12-02","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"17","bibliographicVolumeNumber":"2014-HPC-147"}]},"relation_version_is_last":true,"weko_creator_id":"11"},"updated":"2025-01-21T09:04:49.057854+00:00","created":"2025-01-18T23:50:31.130146+00:00","links":{},"id":107316}