{"created":"2025-01-19T01:16:50.312541+00:00","updated":"2025-01-19T15:55:46.901574+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00216114","sets":["1164:1579:10818:10819"]},"path":["10819"],"owner":"44499","recid":"216114","title":["FPGA向け4倍精度浮動小数点演算器の設計と共役勾配法による評価"],"pubdate":{"attribute_name":"公開日","attribute_value":"2022-01-17"},"_buckets":{"deposit":"02f742d0-99b6-4981-84b9-98750b5cc50c"},"_deposit":{"id":"216114","pid":{"type":"depid","value":"216114","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"FPGA向け4倍精度浮動小数点演算器の設計と共役勾配法による評価","author_link":["557512","557513","557510","557511","557514","557509"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"FPGA向け4倍精度浮動小数点演算器の設計と共役勾配法による評価"},{"subitem_title":"Design of a Quadruple Precision Floating-Point Arithmetic Unit and its Evaluation by Conjugate Gradient Method","subitem_title_language":"en"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"HPC","subitem_subject_scheme":"Other"}]},"item_type_id":"4","publish_date":"2022-01-17","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/216114/files/IPSJ-ARC22247027.pdf","label":"IPSJ-ARC22247027.pdf"},"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-ARC22247027.pdf","filesize":[{"value":"1.6 MB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"0","billingrole":"16"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_login","version_id":"0c34423f-4b58-4d63-993b-483b150a0103","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2022 by the Institute of Electronics, Information and Communication Engineers This SIG report is only available to those in membership of the SIG."}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"柿根, 尚喜"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"窪田, 昌史"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"弘中, 哲夫"}],"nameIdentifiers":[{}]}]},"item_4_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Naoki, Kakine","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Atsushi, Kubota","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Tetsuo, Hironaka","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN10096105","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":"2188-8574","subitem_source_identifier_type":"ISSN"}]},"item_4_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"4 倍精度浮動小数点演算の需要は多いものの，商用プロセッサへの搭載例は少なく，ソフトウェアによる低速なエミュレーションで実現されていることが問題となっている．そこで我々は FPGA による高速化に着目した．4 倍精度浮動小数点演算器およびそれを呼び出す共役勾配法を C++ 言語で記述し，高位合成を利用して Xilinx 社 FPGA である Alveo U50  向けに実装したところ，行列サイズ 494 × 494 で汎用 CPU より高速に実行できることを確認した． ","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"5","bibliographic_titles":[{"bibliographic_title":"研究報告システム・アーキテクチャ（ARC）"}],"bibliographicPageStart":"1","bibliographicIssueDates":{"bibliographicIssueDate":"2022-01-17","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"27","bibliographicVolumeNumber":"2022-ARC-247"}]},"relation_version_is_last":true,"weko_creator_id":"44499"},"id":216114,"links":{}}