{"created":"2025-01-19T01:11:17.606421+00:00","updated":"2025-01-19T18:18:16.796011+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00210019","sets":["1164:2240:10556:10557"]},"path":["10557"],"owner":"44499","recid":"210019","title":["非圧縮性乱流DNSコードに現れる高速フーリエ変換のSX-Aurora TSUBASAにおける性能評価"],"pubdate":{"attribute_name":"公開日","attribute_value":"2021-03-08"},"_buckets":{"deposit":"fc924fb6-7770-4414-be1c-704024f35c03"},"_deposit":{"id":"210019","pid":{"type":"depid","value":"210019","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"非圧縮性乱流DNSコードに現れる高速フーリエ変換のSX-Aurora TSUBASAにおける性能評価","author_link":["530844","530845","530847","530841","530842","530843","530846"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"非圧縮性乱流DNSコードに現れる高速フーリエ変換のSX-Aurora TSUBASAにおける性能評価"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"性能評価","subitem_subject_scheme":"Other"}]},"item_type_id":"4","publish_date":"2021-03-08","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":"岡山大学大学院生命科学研究科"},{"subitem_text_value":"東北大学サイバーサイエンスセンター"},{"subitem_text_value":"東北大学大学院情報科学研究科"},{"subitem_text_value":"理化学研究所計算科学研究センター"},{"subitem_text_value":"神戸大学大学院システム情報学研究科"}]},"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 Environmental and Life Science, Okayama University","subitem_text_language":"en"},{"subitem_text_value":"Cyberscience Center, Tohoku University","subitem_text_language":"en"},{"subitem_text_value":"Graduate School of Information Sciences, Tohoku University","subitem_text_language":"en"},{"subitem_text_value":"RIKEN Center for Computational Science","subitem_text_language":"en"},{"subitem_text_value":"Graduate school of System Informatics, Kobe 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 file","attribute_type":"file","attribute_value_mlt":[{"url":{"url":"https://ipsj.ixsq.nii.ac.jp/record/210019/files/IPSJ-HPC21178021.pdf","label":"IPSJ-HPC21178021.pdf"},"date":[{"dateType":"Available","dateValue":"2023-03-08"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-HPC21178021.pdf","filesize":[{"value":"1.8 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":"fafddce4-2328-465e-9281-7b39f22df529","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2021 by the Information Processing Society of Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"武中, 裕次郎"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"横川, 三津夫"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"石原, 卓"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"小松, 一彦"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"小林, 広明"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"今村, 俊幸"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"清水, 智也"}],"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":"乱流は自然現象や科学技術の様々な問題で現れるため，その普遍的な性質を解明することが重要となる．フーリエ・スペクトル法による一様等方性乱流の直接数値シミュレーション（DNS）では，その実行時間の大部分を 3 次元高速フーリエ変換（3D-FFT）が占める．本研究では，2 軸分割による非圧縮一様等方性乱流 DNS コードを開発し，FFT 部分について，最先端のベクトル計算機である SX-Aurora TSUBASA 向け最適化を行なった．最適化としてキャッシュブロッキング，配列のパディングを行なった結果，最大で約 3.3 倍の高速化を達成した．FFT における計算性能は 1 コアあたり 3.38GFlops，対ピーク性能比は 1.1% であり，計算部分のみでは 1 コアあたり 35.9GFlops，11.7% であった．また，大規模な乱流 DNS の実現に向けて通信時間を予測するため，SX-Aurora TSUBASAにおいて，MPI_alltoall による通信の実効転送性能を計測した．その結果，VE 数が 16 以上の場合はプロセス数の増加に関わらず，実効転送性能が一定になることがわかった．","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"9","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":"2021-03-08","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"21","bibliographicVolumeNumber":"2021-HPC-178"}]},"relation_version_is_last":true,"weko_creator_id":"44499"},"id":210019,"links":{}}