{"id":217484,"metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00217484","sets":["1164:2240:10902:10903"]},"path":["10903"],"owner":"44499","recid":"217484","title":["都市気象シミュレーションCity-LESのOpenACCによる完全GPU化と並列性能評価"],"pubdate":{"attribute_name":"公開日","attribute_value":"2022-03-10"},"_buckets":{"deposit":"54678735-15c0-4db8-8e7b-9c3be5a01a31"},"_deposit":{"id":"217484","pid":{"type":"depid","value":"217484","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"都市気象シミュレーションCity-LESのOpenACCによる完全GPU化と並列性能評価","author_link":["563606","563610","563609","563605","563608","563607"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"都市気象シミュレーションCity-LESのOpenACCによる完全GPU化と並列性能評価"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"アクセラレータ","subitem_subject_scheme":"Other"}]},"item_type_id":"4","publish_date":"2022-03-10","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"筑波大学情報理工学位プログラム"},{"subitem_text_value":"筑波大学情報理工学位プログラム"},{"subitem_text_value":"筑波大学計算科学研究センター／筑波大学情報理工学位プログラム"},{"subitem_text_value":"筑波大学計算科学研究センター"},{"subitem_text_value":"筑波大学計算科学研究センター"},{"subitem_text_value":"筑波大学計算科学研究センター"}]},"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/217484/files/IPSJ-HPC22183006.pdf","label":"IPSJ-HPC22183006.pdf"},"date":[{"dateType":"Available","dateValue":"2024-03-10"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-HPC22183006.pdf","filesize":[{"value":"1.5 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":"3cbda72b-592e-4a0c-9fe7-9bd20a7eec81","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2022 by the Information Processing Society of Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"渡邉, 孔英"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"菊池, 航平"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"朴, 泰祐"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"佐藤, 拓人"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"ドアン, グアンヴァン"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"日下, 博幸"}],"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":"筑波大学計算科学研究センターで開発されている都市気象シミュレーションコードである City-LES は，都市レベルの気象現象の詳細シミュレーションを行うアプリケーションである．我々はこのコードを高速化するため，これまで主な計算をすべてGPU実装してきた．これにより計算が著しく高速化した結果，通信にかかる時間が目立つようになったため，ポアソン求解におけるマルチグリッド前処理の袖通信に注目し，その通信オーバーヘッドを削減する手法を実装した．その上で，東京駅周辺の実都市モデルを用いた性能評価を行い，計算科学研究センターで運用されているGPU・FPGA混載型スーパーコンピュータCygnus上の4ノード（16GPU）から64ノード（256GPU）での並列実行を行なった．その結果，最大15.9倍の性能向上を達成したことを確認した．","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":"2022-03-10","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"6","bibliographicVolumeNumber":"2022-HPC-183"}]},"relation_version_is_last":true,"weko_creator_id":"44499"},"updated":"2025-01-19T15:28:53.811927+00:00","created":"2025-01-19T01:17:58.511375+00:00","links":{}}