{"id":211891,"metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00211891","sets":["1164:2240:10556:10628"]},"path":["10628"],"owner":"44499","recid":"211891","title":["低精度浮動小数点数を適用したICCG法の性能評価"],"pubdate":{"attribute_name":"公開日","attribute_value":"2021-07-13"},"_buckets":{"deposit":"6e2c4744-2e84-45f9-8726-a0fb84b9f05d"},"_deposit":{"id":"211891","pid":{"type":"depid","value":"211891","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"低精度浮動小数点数を適用したICCG法の性能評価","author_link":["539289","539290"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"低精度浮動小数点数を適用したICCG法の性能評価"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"高性能計算","subitem_subject_scheme":"Other"}]},"item_type_id":"4","publish_date":"2021-07-13","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"東京大学情報基盤センター"},{"subitem_text_value":"東京大学情報基盤センター／理化学研究所計算科学研究センター"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Information Technology Center","subitem_text_language":"en"},{"subitem_text_value":"Information Technology Center / RIKEN R-CCS","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/211891/files/IPSJ-HPC21180023.pdf","label":"IPSJ-HPC21180023.pdf"},"date":[{"dateType":"Available","dateValue":"2023-07-13"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-HPC21180023.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":"92e3b725-c80b-484a-b8ef-dce79d362c2f","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":"河合, 直聡"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"中島, 研吾"}],"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":"本研究では ICCG 法の IC 前処理に低精度演算を適用し，計算時間短縮の効果および収束性への影響を Wisteria-BDEC および Oakforest-PACS，Oakbridge-CX 上で評価した．ICCG 法などの反復法では，高い演算精度が必要とされるため，倍精度浮動小数点数の利用が一般的である．ただし，ICCG 法などの反復法はメモリ律速なアプリケーションであるため，より低精度な浮動小数点数が適用できれば，計算時間短縮の効果が期待できる．本研究では IC 前処理部の行列およびベクトルを格納する浮動小数点数を低精度化し，計算時間短縮の効果および収束性への影響を評価した．","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":"2021-07-13","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"23","bibliographicVolumeNumber":"2021-HPC-180"}]},"relation_version_is_last":true,"weko_creator_id":"44499"},"updated":"2025-01-19T17:38:32.053545+00:00","created":"2025-01-19T01:13:00.582505+00:00","links":{}}