{"links":{},"id":195098,"metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00195098","sets":["1164:1579:9681:9756"]},"path":["9756"],"owner":"44499","recid":"195098","title":["Approximate Memoryのデータ分離に起因する性能低下を抑制するプリフェッチ手法"],"pubdate":{"attribute_name":"公開日","attribute_value":"2019-03-10"},"_buckets":{"deposit":"26bbb520-4604-4e14-af3a-59e05a2e4a9b"},"_deposit":{"id":"195098","pid":{"type":"depid","value":"195098","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"Approximate Memoryのデータ分離に起因する性能低下を抑制するプリフェッチ手法","author_link":["463621","463622"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Approximate Memoryのデータ分離に起因する性能低下を抑制するプリフェッチ手法"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"メモリシステム","subitem_subject_scheme":"Other"}]},"item_type_id":"4","publish_date":"2019-03-10","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"東京大学情報理工学系研究科創造情報学専攻"},{"subitem_text_value":"東京大学情報理工学系研究科創造情報学専攻"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Department of Creative Informatics, Graduate School of Information Science and Technology, The University of Tokyo","subitem_text_language":"en"},{"subitem_text_value":"Department of Creative Informatics, Graduate School of Information Science and Technology, 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/195098/files/IPSJ-ARC19235018.pdf","label":"IPSJ-ARC19235018.pdf"},"date":[{"dateType":"Available","dateValue":"2021-03-10"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-ARC19235018.pdf","filesize":[{"value":"894.0 kB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"660","billingrole":"5"},{"tax":["include_tax"],"price":"330","billingrole":"6"},{"tax":["include_tax"],"price":"0","billingrole":"16"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"36281257-fb63-4f0b-93ac-50b7c7590218","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2019 by the Information Processing Society of Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"穐山, 空道"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"塩谷, 亮太"}],"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":"CPU コアの性能向上に伴い，メモリアクセスレイテンシが相対的に増大している．またメインメモリの容量増大に伴い，メモリの消費電力がマシン全体の消費電力に占める割合も増大している．これらにより，メインメモリのレイテンシと消費電力はコンピュータ性能のボトルネックとなっている．この問題に対し，DRAM に保存されるデータに低確率でエラーが混入することを許す代わりに高速アクセスと消費電力削減を実現する Approximate Memory が有用である．しかし，Approximate Memory ではエラー混入を許すデータと許さないデータを分離して保持する必要があり，メモリアクセスの空間局所性悪化によりアプリケーションの性能が低下する．本稿では，まず Approximate Memory を想定したデータ分離によるアプリケーションの性能低下をシミュレーションにより定量的に分析する．次に，データ構造の先頭へのアクセス時にエラー混入を許すデータを同時にフェッチするすることで性能低下を抑制する手法を提案し，シミュレーションによって効果を検討する．","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"10","bibliographic_titles":[{"bibliographic_title":"研究報告システム・アーキテクチャ（ARC）"}],"bibliographicPageStart":"1","bibliographicIssueDates":{"bibliographicIssueDate":"2019-03-10","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"18","bibliographicVolumeNumber":"2019-ARC-235"}]},"relation_version_is_last":true,"weko_creator_id":"44499"},"created":"2025-01-19T01:00:06.879379+00:00","updated":"2025-01-19T23:13:11.725123+00:00"}