{"links":{},"id":2006146,"metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:02006146","sets":["1164:2240:11899:1761810428420"]},"path":["1761810428420"],"owner":"80578","recid":"2006146","title":["csDF : Cerebras CS-2向け疑似倍精度浮動小数点演算ライブラリの実装"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2025-12-08"},"_buckets":{"deposit":"d827ac43-eef0-482f-bb96-3ad99e2dceda"},"_deposit":{"id":"2006146","pid":{"type":"depid","value":"2006146","revision_id":0},"owners":[80578],"status":"published","created_by":80578},"item_title":"csDF : Cerebras CS-2向け疑似倍精度浮動小数点演算ライブラリの実装","author_link":[],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"csDF : Cerebras CS-2向け疑似倍精度浮動小数点演算ライブラリの実装","subitem_title_language":"ja"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"LLM基盤・数値表現","subitem_subject_scheme":"Other"}]},"item_type_id":"4","publish_date":"2025-12-08","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"明治大学理工学部情報科学科"},{"subitem_text_value":"明治大学理工学部情報科学科"},{"subitem_text_value":"明治大学理工学部情報科学科"},{"subitem_text_value":"明治大学理工学部情報科学科"},{"subitem_text_value":"Argonne National Laboratory, Mathematics and Computer Science"},{"subitem_text_value":"名古屋大学情報基盤センター"},{"subitem_text_value":"明治大学理工学部情報科学科"}]},"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/2006146/files/IPSJ-HPC25202002.pdf","label":"IPSJ-HPC25202002.pdf"},"date":[{"dateType":"Available","dateValue":"2027-12-08"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-HPC25202002.pdf","filesize":[{"value":"2.3 MB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"660","billingrole":"5"},{"tax":["include_tax"],"price":"330","billingrole":"6"},{"tax":["include_tax"],"price":"0","billingrole":"14"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"4a089896-b63f-42f6-8ad9-a8991c133c8b","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2025 by the Information Processing Society of Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"村上,魁"}]},{"creatorNames":[{"creatorName":"長島,令旺"}]},{"creatorNames":[{"creatorName":"中村,暁"}]},{"creatorNames":[{"creatorName":"松崎,竜之介"}]},{"creatorNames":[{"creatorName":"吉井,一友"}]},{"creatorNames":[{"creatorName":"椋木,大地"}]},{"creatorNames":[{"creatorName":"宮島,敬明"}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN10463942","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_source_id_11":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"2188-8841","subitem_source_identifier_type":"ISSN"}]},"item_4_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"近年，科学技術計算にAIアクセラレータを応用する試みが行われている．Cerebras CS-2システム（CS-2）は，1.06 PFlops/sという非常に高い単精度浮動小数点演算性能を発揮するAIアクセラレータである．しかし，科学技術計算に不可欠な倍精度浮動小数点演算器を搭載していない．この隔たりを埋めるために，我々はCS-2向けの疑似倍精度演算ライブラリ“csDF”を提供する．csDFは，2つの単精度浮動小数点数を用いてより高い精度をエミュレートするdouble-float（DF）演算が行える．本ライブラリは基本的な算術演算に加え，多くの数学関数とユーティリティ関数を持つ．具体的な利用例として，DF加算と乗算を用いたDF型の行列積を実装し，強・弱スケーリング性能を評価した．その結果，行列サイズM′= 8000 × 8000で750×750PEを使用したのときに，8.09 T DF-Flops/sを達成した．本研究は，倍精度演算器を持たないCS-2上での高精度計算を可能にし，科学技術計算への応用範囲を拡大するものである．","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"7","bibliographic_titles":[{"bibliographic_title":"研究報告ハイパフォーマンスコンピューティング（HPC）"}],"bibliographicPageStart":"1","bibliographicIssueDates":{"bibliographicIssueDate":"2025-12-08","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"2","bibliographicVolumeNumber":"2025-HPC-202"}]},"relation_version_is_last":true,"weko_creator_id":"80578"},"created":"2025-12-01T07:13:38.974270+00:00","updated":"2025-12-01T07:13:43.049674+00:00"}