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          <dc:title>マルチコアを考慮した通信隠蔽手法の自動チューニング機能付き高性能固有値ソルバの開発</dc:title>
          <dc:title xml:lang="en">High Performance eigenvalue solver accelerated with a auto-tunner mechanism concering with multicore communication hiding</dc:title>
          <jpcoar:creator>
            <jpcoar:creatorName>今村, 俊幸</jpcoar:creatorName>
            <jpcoar:creatorName>吉田, 剛啓</jpcoar:creatorName>
            <jpcoar:creatorName>田村, 遼也</jpcoar:creatorName>
            <jpcoar:creatorName>近藤, 大貴</jpcoar:creatorName>
            <jpcoar:creatorName>山田, 進</jpcoar:creatorName>
            <jpcoar:creatorName>町田, 昌彦</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="en">Toshiyuki, Imamura</jpcoar:creatorName>
            <jpcoar:creatorName xml:lang="en">Takehiro, Yoshida</jpcoar:creatorName>
            <jpcoar:creatorName xml:lang="en">Ryoya, Tamura</jpcoar:creatorName>
            <jpcoar:creatorName xml:lang="en">Hiroki, Kondo</jpcoar:creatorName>
            <jpcoar:creatorName xml:lang="en">Susumu, Yamada</jpcoar:creatorName>
            <jpcoar:creatorName xml:lang="en">Masahiko, Machida</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:subject subjectScheme="Other">自動チューニング</jpcoar:subject>
          <datacite:description descriptionType="Other">京コンピュータ向けに開発された固有値ソルバ Eigen-K について，マルチコアの並列特性を考慮した通信ならびに計算最適化について議論する．先行研究では，分配則を利用した集団通信関数削減，冗長な集団通信部分の自動チューニング手法を考慮してきたが，本研究はこれらに加えて通信制御スレッドを導入することによる，ノンブロッキング集団通信に等価な機能を実現する．ノンブロッキング集団通信の制御を自動チューニングにより，異なる並列計算の状況で高いスケーラビリティを達成することができる．本報告では，これらについて FX10 での試験結果を報告する．</datacite:description>
          <datacite:description descriptionType="Other">We have recently introduced a communication and computation hiding optimization technique for the eigenvalue solver Eigen-K developed for K computer. In prior works, we focused on the reduction of collective communication by the distributive law and auto-tuning of redundant computation. The present work introduces an auto-tuning technique in an equivalent operation to asynchronous collective communication, which is realized by an expense of a thread dedicating itself to the communication control. This yields very good scalability on various parallel computer environments. This paper reports the latest results on a FX10 supercomputer system.</datacite:description>
          <dc:publisher xml:lang="ja">情報処理学会</dc:publisher>
          <datacite:date dateType="Issued">2012-07-25</datacite:date>
          <dc:language>jpn</dc:language>
          <dc:type rdf:resource="http://purl.org/coar/resource_type/c_18gh">technical report</dc:type>
          <jpcoar:identifier identifierType="URI">https://ipsj.ixsq.nii.ac.jp/records/83298</jpcoar:identifier>
          <jpcoar:sourceIdentifier identifierType="NCID">AN10463942</jpcoar:sourceIdentifier>
          <jpcoar:sourceTitle>研究報告ハイパフォーマンスコンピューティング（HPC）</jpcoar:sourceTitle>
          <jpcoar:volume>2012-HPC-135</jpcoar:volume>
          <jpcoar:issue>19</jpcoar:issue>
          <jpcoar:pageStart>1</jpcoar:pageStart>
          <jpcoar:pageEnd>8</jpcoar:pageEnd>
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            <datacite:date dateType="Available">2014-07-25</datacite:date>
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