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        <identifier>oai:ipsj.ixsq.nii.ac.jp:00141754</identifier>
        <datestamp>2025-01-20T19:15:19Z</datestamp>
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        <jpcoar:jpcoar xmlns:datacite="https://schema.datacite.org/meta/kernel-4/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcndl="http://ndl.go.jp/dcndl/terms/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:jpcoar="https://github.com/JPCOAR/schema/blob/master/1.0/" xmlns:oaire="http://namespace.openaire.eu/schema/oaire/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:rioxxterms="http://www.rioxx.net/schema/v2.0/rioxxterms/" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns="https://github.com/JPCOAR/schema/blob/master/1.0/" xsi:schemaLocation="https://github.com/JPCOAR/schema/blob/master/1.0/jpcoar_scm.xsd">
          <dc:title>スーパーコンピュータ「京」を用いたアプリケーション性能特性と使用電力の相関解析</dc:title>
          <dc:title xml:lang="en">Analysis of the correlation between application performance and power consumption on the K computer</dc:title>
          <jpcoar:creator>
            <jpcoar:creatorName>黒田, 明義</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName>北澤, 好人</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName>塚本, 俊之</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName>小山, 謙太郎</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName>井上, 晃</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName>南, 一生</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="en">Akiyoshi, Kuroda</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="en">Yoshito, Kitazawa</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="en">Toshiyuki, Tsukamoto</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="en">Kentaro, Koyama</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="en">Hikaru, Inoue</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="en">Kazuo, Minami</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:subject subjectScheme="Other">省電力</jpcoar:subject>
          <datacite:description descriptionType="Other">近年ハイパフォーマンスコンピューティングにおいて，システム性能の向上に伴い，消費電力の増大が大きな課題となってきている．スーパーコンピュータ 「京」 では，LINPACK 測定時の電力を超える実アプリケーションはないと考えられていた．しかし共用開始以降，アプリケーションの性能チューニングが進んだことで，全系規模の超並列ジョブ実行時に契約電力を超過する事例が見られるようになった．本稿では，アプリケーション実行時の消費電力を CPU や通信，I/O などのアプリケーション固有の性能特性から評価を行った．この評価から消費電力への影響が大きい基礎性能要因は，演算密度ではなくメモリスループットであることが分かった．</datacite:description>
          <datacite:description descriptionType="Other">In recent times, because of high performance computing, an increase in power consumption with the advancement of system performance is a major concern. Initially, we assumed that there are no applications that exceed power consumption on the K computer as compared to LINPACK. However, we found cases where power consumption exceeded due to the implementation of massively parallel calculations that occupied the entire system size by application performance tuning was used. In this study, we evaluated the power consumed by focusing on the characteristics of application performance, such as CPU, memory, communication, and I/O. From these evaluations, we deduce that the impact of application performance on the power consumed is with a high memory throughput rather than a high density calculation.</datacite:description>
          <dc:publisher xml:lang="ja">情報処理学会</dc:publisher>
          <datacite:date dateType="Issued">2015-05-12</datacite:date>
          <dc:language>jpn</dc:language>
          <dc:type rdf:resource="http://purl.org/coar/resource_type/c_5794">conference paper</dc:type>
          <jpcoar:identifier identifierType="URI">https://ipsj.ixsq.nii.ac.jp/records/141754</jpcoar:identifier>
          <jpcoar:sourceTitle>ハイパフォーマンスコンピューティングと計算科学シンポジウム論文集</jpcoar:sourceTitle>
          <jpcoar:volume>2015</jpcoar:volume>
          <jpcoar:pageStart>140</jpcoar:pageStart>
          <jpcoar:pageEnd>149</jpcoar:pageEnd>
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            <jpcoar:URI>https://ipsj.ixsq.nii.ac.jp/record/141754/files/IPSJ-HPCS2015042.pdf</jpcoar:URI>
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            <jpcoar:extent>1.8 MB</jpcoar:extent>
            <datacite:date dateType="Available">2017-05-12</datacite:date>
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