{"created":"2025-07-10T01:42:54.857204+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:02003150","sets":["1164:2240:11899:1752109082809"]},"path":["1752109082809"],"owner":"80578","recid":"2003150","title":["オープンソース流体解析プログラムDualSPHysicsのOpenACCを用いたGPUへの移植と性能評価"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2025-07-28"},"_buckets":{"deposit":"89da295d-74c5-4ff5-b346-f69fb29c988a"},"_deposit":{"id":"2003150","pid":{"type":"depid","value":"2003150","revision_id":0},"owners":[80578],"status":"published","created_by":80578},"item_title":"オープンソース流体解析プログラムDualSPHysicsのOpenACCを用いたGPUへの移植と性能評価","author_link":[],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"オープンソース流体解析プログラムDualSPHysicsのOpenACCを用いたGPUへの移植と性能評価","subitem_title_language":"ja"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"最適化","subitem_subject_scheme":"Other"}]},"item_type_id":"4","publish_date":"2025-07-28","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"明治大学理工学研究科情報科学専攻"},{"subitem_text_value":"明治大学理工学研究科情報科学専攻"},{"subitem_text_value":"明治大学理工学研究科情報科学専攻"},{"subitem_text_value":"明治大学理工学研究科情報科学専攻"}]},"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/2003150/files/IPSJ-HPC25200013.pdf","label":"IPSJ-HPC25200013.pdf"},"date":[{"dateType":"Available","dateValue":"2027-07-28"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-HPC25200013.pdf","filesize":[{"value":"1.6 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":"fdeba4fa-12f9-4219-9ad6-ccc4257d5e05","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2025 by the Information Processing Society of Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"長谷川,和久"}]},{"creatorNames":[{"creatorName":"阿部,碧音"}]},{"creatorNames":[{"creatorName":"和田,大"}]},{"creatorNames":[{"creatorName":"宮島,敬明"}]}]},"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":"物理シミュレーションは工学や自然科学など多様な分野で活用され、特に製品開発において試作回数の削減やコスト低減に貢献している。粒子系シミュレーションでは、粒子数の増加により精度が向上する一方で、計算量の増大が課題となる。GPGPU（General-Purpose computing on Graphics Processing Units）は、この課題解決の手段として注目されているが、コードベースが大きいとGPUへの移植自体が困難となる。OpenACCはCUDAよりも容易にGPU最適化を実現できる手法として注目されている。本研究では、粒子法の一種であるSPH（Smoothed Particle Hydrodynamics）法を用いたオープンソース流体解析プログラムDualSPHysicsをOpenACCを用いてGPUへ移植・最適化した。具体的には、DualSPHysics全体をOpenACCを用いて、GPUに移植し、計算時間をマルチスレッドCPU版に比べて約3分の1に短縮した。さらに、計算負荷の高い粒子間相互作用の計算を行なうInteractionForcesFluid関数を個別に最適化した。データ転送の最適化、数式改良などを行い、CPU版に比べて最大9.39倍の高速化を達成した。","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":"2025-07-28","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"13","bibliographicVolumeNumber":"2025-HPC-200"}]},"relation_version_is_last":true,"weko_creator_id":"80578"},"links":{},"id":2003150,"updated":"2025-07-10T01:43:00.418615+00:00"}