{"id":210438,"created":"2025-01-19T01:11:39.626163+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00210438","sets":["1164:2036:10484:10562"]},"path":["10562"],"owner":"44499","recid":"210438","title":["高効率なRT-DVFS向けIPC制御機構"],"pubdate":{"attribute_name":"公開日","attribute_value":"2021-03-18"},"_buckets":{"deposit":"ed895f42-fdb2-4a97-b69f-23a3d0686e9b"},"_deposit":{"id":"210438","pid":{"type":"depid","value":"210438","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"高効率なRT-DVFS向けIPC制御機構","author_link":["532751","532754","532753","532752"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"高効率なRT-DVFS向けIPC制御機構"},{"subitem_title":"IPC control mechanism for highly efficient RT-DVFS","subitem_title_language":"en"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"プロセッサアーキテクチャ","subitem_subject_scheme":"Other"}]},"item_type_id":"4","publish_date":"2021-03-18","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"慶應義塾大学理工学部"},{"subitem_text_value":"慶應義塾大学大学院理工学研究科"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":" Faculty of Science and Technology, Keio University","subitem_text_language":"en"},{"subitem_text_value":"Graduate School of Science and Technology ,Keio University ","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/210438/files/IPSJ-SLDM21194038.pdf","label":"IPSJ-SLDM21194038.pdf"},"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-SLDM21194038.pdf","filesize":[{"value":"1.8 MB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"0","billingrole":"10"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_login","version_id":"dfb51286-cefb-429f-9aab-5aa35785d96d","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2021 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":"山藤, 篤志"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"山﨑, 信行"}],"nameIdentifiers":[{}]}]},"item_4_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Faculty of Science and Technology Keio University","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Graduate, School of Science and Technology Keio University","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA11451459","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":"2188-8639","subitem_source_identifier_type":"ISSN"}]},"item_4_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"組込みリアルタイムシステムではリアルタイム性を満たしつつ消費電力を削減することが求められる．リアルタイムスケジューリングを行うことでリアルタイム性を保証することができる．また RT-DVFS を行うことでリアルタイム性を保証しつつ消費電力を削減することができる．Responsive Multithreaded  Processor (RMTP) は組込みリアルタイムシステム向けの Simultaneous Multithreading (SMT) プロセッサであり，スレッドの実行速度を制御する IPC 制御機構を有している．IPC 制御機構を用いることで最適スケジューリングである Fluid スケジュールを非常に小さなオーバヘッドで実現することができる．さらに RMTP は DVFS に対応しており，Fluid スケジュールと DVFS を組み合わせることで，リアルタイム性を保証しながら消費電力を削減することができる．しかしながら，既存の RMTP の IPC 制御機構は Thread Level Parallelism (TLP) の抽出が不十分であり，計算資源の利用率が低下するという課題がある．この課題に対し本研究では TLP を効果的に抽出する手法を提案し，IPC 制御時の計算資源の利用率を向上することで，RT-DVFS 時により低い周波数でシステムを動作させることができる．シミュレーションによる評価を行った結果，提案手法により計算資源の利用率が向上し，RT-DVFS による効率的な消費電力の削減が可能であることを確認した．","subitem_description_type":"Other"}]},"item_4_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"Embedded real-time systems requires power consumption while satisfying real-time performance. RT-DVFS and real-time scheduling methods are applied respectively to guarantee performance. Responsive Multi-threaded Processor (RMTP) is an Simultaneous Multithreading (SMT) processor for embedded real-time systems. It implements an IPC control mechanism that controls the execution speed of threads. By using the IPC control mechanism, Fluid schedule, which is an optimal scheduling algorithm, can be achieved with a very small overhead. By combining Fluid Schedule with the IPC control mechanism and RT-DVFS, it is possible to reduce power consumption while guaranteeing real-time performance. However, IPC control mechanism cannot extract Thread Level Parallelism (TLP) insufficiently, and resource utilization becomes poor. In this study, we propose a method for effectively extracting TLP to improve resource utilization during IPC control. It enables to operate the system at a lower frequency during RT-DVFS. As a result of evaluation by simulation, it was confirmed that the proposed method improves resource utilization and enables efficient reduction of power consumption.","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"6","bibliographic_titles":[{"bibliographic_title":"研究報告システムとLSIの設計技術（SLDM）"}],"bibliographicPageStart":"1","bibliographicIssueDates":{"bibliographicIssueDate":"2021-03-18","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"38","bibliographicVolumeNumber":"2021-SLDM-194"}]},"relation_version_is_last":true,"weko_creator_id":"44499"},"updated":"2025-01-19T18:09:45.193482+00:00","links":{}}