{"links":{},"id":22942,"metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00022942","sets":["1164:1579:1585:1588"]},"path":["1588"],"owner":"11","recid":"22942","title":["Look-Ahead ルーティングを用いたオンチップルータの動的パワーシャットダウン"],"pubdate":{"attribute_name":"公開日","attribute_value":"2007-08-02"},"_buckets":{"deposit":"b8c62151-c172-482e-a28a-73c044b4181b"},"_deposit":{"id":"22942","pid":{"type":"depid","value":"22942","revision_id":0},"owners":[11],"status":"published","created_by":11},"item_title":"Look-Ahead ルーティングを用いたオンチップルータの動的パワーシャットダウン","author_link":["459223","459228","459224","459229","459225","459227","459226","459222"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Look-Ahead ルーティングを用いたオンチップルータの動的パワーシャットダウン"},{"subitem_title":"Look-Ahead Routing Based Dynamic Power Shutdown for On-Chip Routers","subitem_title_language":"en"}]},"item_type_id":"4","publish_date":"2007-08-02","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"慶應義塾大学大学院 理工学研究科"},{"subitem_text_value":"国立情報学研究所"},{"subitem_text_value":"慶應義塾大学大学院 理工学研究科"},{"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":"Graduate School of Science and Technology, Keio University","subitem_text_language":"en"},{"subitem_text_value":"National Institute of Informatics","subitem_text_language":"en"},{"subitem_text_value":"Graduate School 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/22942/files/IPSJ-ARC07174022.pdf","label":"IPSJ-ARC07174022"},"date":[{"dateType":"Available","dateValue":"2009-08-02"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-ARC07174022.pdf","filesize":[{"value":"669.6 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":"75c272e0-923e-48e1-815b-3ee2a4c3a3e6","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2007 by the Information Processing Society of Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"松谷, 宏紀"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"鯉渕, 道紘"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"王, 代涵"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"天野, 英晴"}],"nameIdentifiers":[{}]}]},"item_4_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Hiroki, Matsutani","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Michihiro, Koibuchi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Daihan, Wang","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Hideharu, Amano","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_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"オンチップルータはチップ内の通信インフラであるためスタンバイ時であっても完全に停止させることは難しく，省電力対策が進んでいるプロセッサコアと比べるとスタンバイ電力が大きい．そのため， Network-on-Chip（NoC） の動作に支障の無い範囲内でルータの各チャネルの電源を走行時にシャットダウンする手法が NoC の省電力化のために有効であると考えられる．しかし，スリープ中の回路をウェイクアップさせるには一定の遅延がかかるため性能に影響が出るうえに，スリープ操作およびウェイクアップ操作のためにエネルギーが消費されるため，短期間のスリープは逆に消費電力の増加を招く．そこで，本論文では look-ahead ルーティングを応用し，あるルータのチャネルが将来使われるかどうかの判断を2ホップ手前のルータで行うことで，ウェイクアップ遅延を隠蔽し，消費電力の増加を引き起こす短期間のスリープを削減する．実トラフィックを用いた評価によって，提案手法は 5サイクル以下のウェイクアップ時間であれば隠蔽することができ，また，転送要求が無ければ常にスリープを試みるナイーブな方法と比べて実際にスリープできる期間を増やすことができた．","subitem_description_type":"Other"}]},"item_4_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"Since on-chip routers in Network-on-Chips (NoCs) play a key role for enabling on-chip communication between cores, they must be always preparing for packet injections even if cores are in standby mode, resulting in a larger standby power of routers compared with cores. The run-time power gating of individual channels in a router is one of attractive solutions to reduce the standby power of chip without affecting the on-chip communication. However, a state transition between sleep and active mode incurs performance penalty, and turning a power switch on or off dissipates overhead energy, which means a short-term sleep increases power consumption. In this paper, we propose a sleep control method based on the look-ahead routing that detects the arrival of packets two hops ahead, so as to hide the wake-up delay and reduce the short-term sleeps which increase power consumption. Simulation results using real application traces show that the proposed method conceals the wake-up delay of less than five cycles, and it also prolongs the sleep cycles compared with the original naive method.","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"132","bibliographic_titles":[{"bibliographic_title":"情報処理学会研究報告計算機アーキテクチャ（ARC）"}],"bibliographicPageStart":"127","bibliographicIssueDates":{"bibliographicIssueDate":"2007-08-02","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"79(2007-ARC-174)","bibliographicVolumeNumber":"2007"}]},"relation_version_is_last":true,"weko_creator_id":"11"},"created":"2025-01-18T22:54:28.816343+00:00","updated":"2025-01-19T23:33:58.568808+00:00"}