{"created":"2021-03-01T07:10:43.508732+00:00","id":32029,"links":{},"metadata":{"_buckets":{"deposit":"9555d781-724a-4ca0-b71a-2f6500af0dfe"},"_deposit":{"id":"32029","owners":[],"pid":{"revision_id":0,"type":"depid","value":"32029"},"status":"published"},"_oai":{"id":"oai:tsukuba.repo.nii.ac.jp:00032029","sets":["152:2888","3:62:5298:2889"]},"item_5_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2013-03","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"1","bibliographicPageEnd":"37","bibliographicPageStart":"27","bibliographicVolumeNumber":"16","bibliographic_titles":[{"bibliographic_title":"Cluster Computing"}]}]},"item_5_creator_3":{"attribute_name":"著者別名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"児玉, 祐悦"}],"nameIdentifiers":[{}]}]},"item_5_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"We are now developing a new metric of data center power efficiency to fairly evaluate the contribution of each improvement for power efficiency. In order to develop it, we built a testbed of a data center and measured power consumption of each components and environmental variables in some detail, including the power consumption and temperature of each node, rack and air conditioning unit, as well as load on the CPU, Disk I/O and the network. In these measurements we found that there was a significant imbalance of CPU temperatures that caused an imbalance in the power consumption of fans. We clarified the relationship between CPU load and fan speed, and showed that scheduling or rearrangement of nodes could reduce the power consumption of fans. We reduced fan power consumption by a maximum of 62% and total power consumption by a maximum of 12% by changing the scheduling of five nodes, changing the nodes used from hot nodes to cool nodes.","subitem_description_type":"Abstract"}]},"item_5_publisher_27":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"Springer US"}]},"item_5_relation_11":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.1007/s10586-011-0174-7","subitem_relation_type_select":"DOI"}}]},"item_5_rights_12":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"© Springer Science+Business Media, LLC 2011"},{"subitem_rights":"The final publication is available at link.springer.com"}]},"item_5_select_15":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_select_item":"author"}]},"item_5_source_id_7":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1386-7857","subitem_source_identifier_type":"ISSN"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Kodama, Yuetsu"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Itoh, Satoshi"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Shimizu, Toshiyuki"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Sekiguchi, Satoshi"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Nakamura, Hiroshi"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Mori, Naohiko"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2014-12-26"}],"displaytype":"detail","filename":"CC_16-1.pdf","filesize":[{"value":"476.5 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"CC_16-1","url":"https://tsukuba.repo.nii.ac.jp/record/32029/files/CC_16-1.pdf"},"version_id":"e6cffc70-1a60-4eec-9ce0-2d43bc435886"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Imbalance of CPU temperatures in a blade system and its impact for power consumption of fans","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Imbalance of CPU temperatures in a blade system and its impact for power consumption of fans"}]},"item_type_id":"5","owner":"1","path":["2888","2889"],"pubdate":{"attribute_name":"公開日","attribute_value":"2014-12-26"},"publish_date":"2014-12-26","publish_status":"0","recid":"32029","relation_version_is_last":true,"title":["Imbalance of CPU temperatures in a blade system and its impact for power consumption of fans"],"weko_creator_id":"1","weko_shared_id":5},"updated":"2022-04-27T09:00:19.791733+00:00"}