{"created":"2025-01-18T23:31:11.971997+00:00","updated":"2025-01-21T22:04:16.416522+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00073084","sets":["1164:1579:6260:6351"]},"path":["6351"],"owner":"10","recid":"73084","title":["低消費電力マルチコアRP2上での複数メディアアプリケーション実行時の消費電力評価"],"pubdate":{"attribute_name":"公開日","attribute_value":"2011-03-03"},"_buckets":{"deposit":"e8f602fa-f097-4d23-90df-df58c4fae537"},"_deposit":{"id":"73084","pid":{"type":"depid","value":"73084","revision_id":0},"owners":[10],"status":"published","created_by":10},"item_title":"低消費電力マルチコアRP2上での複数メディアアプリケーション実行時の消費電力評価","author_link":["0","0"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"低消費電力マルチコアRP2上での複数メディアアプリケーション実行時の消費電力評価"},{"subitem_title":"Evaluation of Power Consumption by Executing Media Applications on Low-power Multicore RP2","subitem_title_language":"en"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"低消費電力","subitem_subject_scheme":"Other"}]},"item_type_id":"4","publish_date":"2011-03-03","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"早稲田大学"},{"subitem_text_value":"早稲田大学"},{"subitem_text_value":"早稲田大学"},{"subitem_text_value":"早稲田大学"},{"subitem_text_value":"早稲田大学"},{"subitem_text_value":"日本電気株式会社"},{"subitem_text_value":"日本電気株式会社"},{"subitem_text_value":"日本電気株式会社"},{"subitem_text_value":"早稲田大学"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Waseda University","subitem_text_language":"en"},{"subitem_text_value":"Waseda University","subitem_text_language":"en"},{"subitem_text_value":"Waseda University","subitem_text_language":"en"},{"subitem_text_value":"Waseda University","subitem_text_language":"en"},{"subitem_text_value":"Waseda University","subitem_text_language":"en"},{"subitem_text_value":"NEC Corporation","subitem_text_language":"en"},{"subitem_text_value":"NEC Corporation","subitem_text_language":"en"},{"subitem_text_value":"NEC Corporation","subitem_text_language":"en"},{"subitem_text_value":"Waseda 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/73084/files/IPSJ-ARC11194001.pdf"},"date":[{"dateType":"Available","dateValue":"2013-03-03"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-ARC11194001.pdf","filesize":[{"value":"722.7 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":"36010f78-f6e0-4e67-aaeb-38ca90f32bd8","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2011 by the Information Processing Society of Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"見神, 広紀"},{"creatorName":"北基, 俊平"},{"creatorName":"佐藤, 崇文"},{"creatorName":"間瀬, 正啓"},{"creatorName":"木村, 啓二"},{"creatorName":"石坂, 一久"},{"creatorName":"酒井, 淳嗣"},{"creatorName":"枝廣, 正人"},{"creatorName":"笠原, 博徳"}],"nameIdentifiers":[{}]}]},"item_4_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Hiroki, Mikami","creatorNameLang":"en"},{"creatorName":"Shumpei, Kitaki","creatorNameLang":"en"},{"creatorName":"Takafumi, Sato","creatorNameLang":"en"},{"creatorName":"Masayoshi, Mase","creatorNameLang":"en"},{"creatorName":"Keiji, Kimura","creatorNameLang":"en"},{"creatorName":"Kazuhisa, Ishizaka","creatorNameLang":"en"},{"creatorName":"Junji, Sakai","creatorNameLang":"en"},{"creatorName":"Masato, Edahiro","creatorNameLang":"en"},{"creatorName":"Hironori, Kasahara","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":"組み込み向けマルチコアではユーザーのインタラクティブな操作等で複数の逐次あるいは並列プロセスが動作させる環境においても高い性能を得ることが重要となる．さらに組み込みマルチコアプロセッサを省電力で動作させるためには，動作周波数・電圧を動的に制御することが重要となる．本論文では，OSCAR 自動並列化コンパイラにより自動で電力制御された各アプリケーションを複数同時実行した際の電力性能をルネサスエレクトロニクス/日立/早稲田大学で開発した 8 コアのマルチコア RP2 上で評価した．コンパイラによるデッドライン制御モードにおいて，1 コアでもリアルタイム制約を低周波数動作で満たせる軽負荷の AAC エンコーダの場合には，各アプリケーションに 1 コアを割り当て同時実行したときが 1 アプリケーションあたりの電力が最小になったが，1 プロセッサでは高周波数動作しないとデッドラインを満たせない中負荷の AAC エンコーダでは各 AAC エンコーダを2プロセッサで並列処理しつつ複数実行した場合のアプリケーションあたりの電力が低く，1 アプリのみ実行した場合には 1 プロセッサで 1.95W を要したものが 4 プロセッサで 0.84W に下げられる事がわかった．高負荷の MPEG2 デコーダでは 4 プロセッサで並列処理しつつ複数実行した時が 1 アプリケーションの電力が最小となり，負荷のあるアプリケーションでは並列処理を行いつつ電力制御を行うことが有効であると確かめられた．","subitem_description_type":"Other"}]},"item_4_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"On embedded multicores, it is important to obtain high performance although multiple sequential or parallel applications run together. In addition, it is important to control frequency and voltage executing application with low power. This paper evaluated OSCAR compiler's power reduction control with media applications on Renesas Electronics / Hitachi / Waseda RP2. Scheduling with “Deadline mode”, power consumption is minimum when it allocates 1 application for 1 processor by low-complex long-wait applications. But in middle-complex and high-complex applications, power consumption is minimum when applications are executed by parallel. It is confirmed parallel processing and frequency / voltage control is effective on multicore processors.","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"8","bibliographic_titles":[{"bibliographic_title":"研究報告計算機アーキテクチャ（ARC）"}],"bibliographicPageStart":"1","bibliographicIssueDates":{"bibliographicIssueDate":"2011-03-03","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"1","bibliographicVolumeNumber":"2011-ARC-194"}]},"relation_version_is_last":true,"weko_creator_id":"10"},"id":73084,"links":{}}