{"metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00233146","sets":["1164:2240:11467:11522"]},"path":["11522"],"owner":"44499","recid":"233146","title":["圧縮性乱流直接数値シミュレーションのスカラプロセッサ用コードの開発と性能評価"],"pubdate":{"attribute_name":"公開日","attribute_value":"2024-03-11"},"_buckets":{"deposit":"7c12f8db-056a-4c40-8422-5c8dbe5c84f1"},"_deposit":{"id":"233146","pid":{"type":"depid","value":"233146","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"圧縮性乱流直接数値シミュレーションのスカラプロセッサ用コードの開発と性能評価","author_link":["632684","632682","632683","632685","632681"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"圧縮性乱流直接数値シミュレーションのスカラプロセッサ用コードの開発と性能評価"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"CFD","subitem_subject_scheme":"Other"}]},"item_type_id":"4","publish_date":"2024-03-11","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"神戸大学大学院システム情報学研究科"},{"subitem_text_value":"神戸大学大学院システム情報学研究科"},{"subitem_text_value":"神戸大学大学院システム情報学研究科"},{"subitem_text_value":"横浜国立大学大学院環境情報研究院"},{"subitem_text_value":"岡山大学大学院生命科学研究科"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Graduate school of System Informatics, Kobe University","subitem_text_language":"en"},{"subitem_text_value":"Graduate school of System Informatics, Kobe University","subitem_text_language":"en"},{"subitem_text_value":"Graduate school of System Informatics, Kobe University","subitem_text_language":"en"},{"subitem_text_value":"Graduate school of Environment and Information Sciences, Yokohama National University","subitem_text_language":"en"},{"subitem_text_value":"Graduate school of Environmental and Life Science, Okayama University","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 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諒"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"松本, 泰生"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"横川, 三津夫"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"櫻井, 幹記"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"石原, 卓"}],"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_source_id_11":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"2188-8841","subitem_source_identifier_type":"ISSN"}]},"item_4_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"コンピュータによる直接数値シミュレーション(DNS)は,流れの支配方程式をモデル化せず直接解くことができるため,乱流の性質解明のために広く用いられている.一方,大規模な DNS を行う際は格子点数の増加に伴いシミュレーションコードの実行時間が膨大になる問題がある.本研究では,超並列計算機での高速実行を可能とするため,複数の高速化手法を組み込み 3 軸領域分割に対応した等温条件下の圧縮性乱流の有限差分法に基づく DNS コードを開発し,スーパーコンピュータ「富岳」,及び「不老」を用いて性能評価を行った.富岳上で格子点数 40963,4096 ノード,16384 プロセス,12 スレッドの場合について新規コードと従来コードの 1 ステップの実行時間の比較を行った結果,約 12.7 倍の高速化が達成された.","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"8","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":"2024-03-11","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"4","bibliographicVolumeNumber":"2024-HPC-193"}]},"relation_version_is_last":true,"weko_creator_id":"44499"},"id":233146,"updated":"2025-01-19T10:11:45.186823+00:00","links":{},"created":"2025-01-19T01:34:25.043557+00:00"}