{"id":208874,"updated":"2025-01-19T18:41:33.227497+00:00","links":{},"created":"2025-01-19T01:10:14.461819+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00208874","sets":["1164:2240:10178:10459"]},"path":["10459"],"owner":"44499","recid":"208874","title":["GPUにおけるマルチグリッド前処理付き共役勾配法の最適化"],"pubdate":{"attribute_name":"公開日","attribute_value":"2020-12-14"},"_buckets":{"deposit":"82fb2aa5-99ac-4d48-94de-0c1d24e4b215"},"_deposit":{"id":"208874","pid":{"type":"depid","value":"208874","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"GPUにおけるマルチグリッド前処理付き共役勾配法の最適化","author_link":["525216","525217","525218"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"GPUにおけるマルチグリッド前処理付き共役勾配法の最適化"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"数値計算","subitem_subject_scheme":"Other"}]},"item_type_id":"4","publish_date":"2020-12-14","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"高度情報科学技術研究機構"},{"subitem_text_value":"東京大学大気海洋研究所"},{"subitem_text_value":"東京大学大気海洋研究所"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Research Organization for Information Science and Technology","subitem_text_language":"en"},{"subitem_text_value":"Atmosphere and Ocean Research Institute, The University of Tokyo","subitem_text_language":"en"},{"subitem_text_value":"Atmosphere and Ocean Research Institute, The University of Tokyo","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/208874/files/IPSJ-HPC20177010.pdf","label":"IPSJ-HPC20177010.pdf"},"date":[{"dateType":"Available","dateValue":"2022-12-14"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-HPC20177010.pdf","filesize":[{"value":"1.7 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":"4e9b8d41-b0b8-4f1a-833b-215d8a98598e","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2020 by the Information Processing Society of Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"山岸, 孝輝"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"松村, 義正"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"羽角, 博康"}],"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":"マルチグリッド前処理付き CG 法を数値海洋モデルのポワソン方程式ソルバとして GPU 実装した．MPI 通信用袖領域を分離したデータ構造を採用し，通信と演算をオーバラップさせる事並びに荒い格子での処理を複数 GPU から 1GPU に集約することで通信を隠蔽または削減した．これによりソルバのコストの 26% を削減でき，数値海洋モデル全体では CPU 比較で 4 倍の性能向上と 64GPU まで良いスケーリング性能を得た．","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"7","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":"2020-12-14","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"10","bibliographicVolumeNumber":"2020-HPC-177"}]},"relation_version_is_last":true,"weko_creator_id":"44499"}}