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        <identifier>oai:ipsj.ixsq.nii.ac.jp:00233478</identifier>
        <datestamp>2025-01-19T10:04:59Z</datestamp>
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          <dc:title>並列アプリケーションにおける実行性能向上のため通信精度自動チューニング</dc:title>
          <dc:title xml:lang="en">A Tuning Method of Communication Accuracy for High-performance Parallel Applications</dc:title>
          <jpcoar:creator>
            <jpcoar:creatorName>平澤, 将一</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName>鯉渕, 道紘</jpcoar:creatorName>
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          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="en">Shoichi, Hirasawa</jpcoar:creatorName>
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          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="en">Michihiro, Koibuchi</jpcoar:creatorName>
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          <jpcoar:subject subjectScheme="Other">効率化，省電力化</jpcoar:subject>
          <datacite:description descriptionType="Other">並列アプリケーションで主に使用されるデータ型である浮動小数点数は，ビット化けが生じる位置に依存した誤差が発生する．また，Approximate ネットワークは，変調方式に依存して転送精度と転送バンド幅にトレードオフが生じる．そこで本研究において，浮動小数点数のデータ値を考慮した並列アプリケーションの実行性能を向上させる通信精度自動チューニング手法を提案する．提案手法を用いた最適化により，平均 43% の性能向上を達成することを明らかにした．</datacite:description>
          <datacite:description descriptionType="Other">To resolve the next generation interconnection networks latency problem, our prior work has presented error-prone high-bandwidth low-latency networks that do not use the FEC operation. In this study, we apply an accuracy optimization tuning method for approximate interconnection networks; it automatically execute applications multiple times to identify whether each communication should be approximate or accurate data transfer. Application performance evaluation show that it achieves a 43% average execution performance improvement for parallel applications.</datacite:description>
          <dc:publisher xml:lang="ja">情報処理学会</dc:publisher>
          <datacite:date dateType="Issued">2024-03-14</datacite:date>
          <dc:language>jpn</dc:language>
          <dc:type rdf:resource="http://purl.org/coar/resource_type/c_18gh">technical report</dc:type>
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          <jpcoar:sourceIdentifier identifierType="ISSN">2188-868X</jpcoar:sourceIdentifier>
          <jpcoar:sourceIdentifier identifierType="NCID">AA12149313</jpcoar:sourceIdentifier>
          <jpcoar:sourceTitle>研究報告組込みシステム（EMB）</jpcoar:sourceTitle>
          <jpcoar:volume>2024-EMB-65</jpcoar:volume>
          <jpcoar:issue>1</jpcoar:issue>
          <jpcoar:pageStart>1</jpcoar:pageStart>
          <jpcoar:pageEnd>6</jpcoar:pageEnd>
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