{"updated":"2025-01-22T23:05:35.186838+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00017882","sets":["934:1074:1082:1083"]},"path":["1083"],"owner":"1","recid":"17882","title":["大規模非定常数値シミュレーションのリアルタイム可視化-並列計算サーバによる可視化方式の実用化に向けて"],"pubdate":{"attribute_name":"公開日","attribute_value":"2000-11-15"},"_buckets":{"deposit":"14261278-ec2c-4a3c-b932-eadc19d59bc9"},"_deposit":{"id":"17882","pid":{"type":"depid","value":"17882","revision_id":0},"owners":[1],"status":"published","created_by":1},"item_title":"大規模非定常数値シミュレーションのリアルタイム可視化-並列計算サーバによる可視化方式の実用化に向けて","author_link":["0","0"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"大規模非定常数値シミュレーションのリアルタイム可視化-並列計算サーバによる可視化方式の実用化に向けて"},{"subitem_title":"A Real - time Visualization for Large - scale Unsteady Simulations - Toward a Practical Visualization on Parallel Computation Servers","subitem_title_language":"en"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"数値計算とその可視化","subitem_subject_scheme":"Other"}]},"item_type_id":"3","publish_date":"2000-11-15","item_3_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"NEC情報通信メディア研究本部"},{"subitem_text_value":"NEC情報システムズ"},{"subitem_text_value":"NEC情報通信メディア研究本部"}]},"item_3_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Computer & Communication Media Research, NEC Corporation","subitem_text_language":"en"},{"subitem_text_value":"NEC Informatec Systems, Ltd.","subitem_text_language":"en"},{"subitem_text_value":"Computer & Communication Media Research, NEC Corporation","subitem_text_language":"en"}]},"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/17882/files/IPSJ-THPS4108012.pdf"},"date":[{"dateType":"Available","dateValue":"2002-11-15"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-THPS4108012.pdf","filesize":[{"value":"1.0 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":"16"},{"tax":["include_tax"],"price":"0","billingrole":"11"},{"tax":["include_tax"],"price":"0","billingrole":"14"},{"tax":["include_tax"],"price":"0","billingrole":"15"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"6b03e591-c110-4f21-94ce-645475a64b74","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2000 by the Information Processing Society of Japan"}]},"item_3_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"武井, 利文"},{"creatorName":"松本, 秀樹"},{"creatorName":"土肥, 俊"}],"nameIdentifiers":[{}]}]},"item_3_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Toshifumi, Takei","creatorNameLang":"en"},{"creatorName":"Hideki, Matsumoto","creatorNameLang":"en"},{"creatorName":"Shun, Doi","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_3_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA11560614","subitem_source_identifier_type":"NCID"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourceuri":"http://purl.org/coar/resource_type/c_6501","resourcetype":"journal article"}]},"item_3_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"本論文では，並列ベクトル型のスーパコンピュータなどの並列計算サーバの上で実行される大規模な非定常数値シミュレーションの結果を，ネットワーク上のPCなどの軽いクライアントを通して可視化することを目的として開発されたリアルタイム可視化システムRVSLIB（Real-time Visual Simulation Library）の概要を，可視化処理性能を含めて紹介する．数百万自由度以上の計算格子を用いた流体解析などの大規模非定常計算においては，従来のポスト処理手法による可視化は困難になる．RVSLIBは並列計算サーバの各プロセッサ上で，流体などの解析と可視化画像生成までのグラフィックス処理を行い，画像を圧縮し，ネットワークを通して端末へ転送する．これによって，計算サーバからPCなどのユーザ端末に計算結果を転送する場合に比べて，データ転送量を大幅に削減し，インターネットを含む広域のネットワーク分散環境での可視化を可能にしている．グラフィックス処理はベクトル化と並列化により高速化している．RVSLIBを実際のシミュレーションプログラムに組み込んでNEC SX-4上で性能評価を行い，その結果，リアルタイム可視化による経過時間の増加率は1ｴ%以内に抑えられることを確認している．","subitem_description_type":"Other"}]},"item_3_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"We have developed the RVSLIB (Real-time Visual Simulation Library) as a concurrent system for producing visualizations. This paper shows the effectiveness of the system when it is applied to large-scale unsteady numerical simulations, for which more than millions of grid points are used, on high-performance parallel vector supercomputers in a network-computing environment. Conventional post-processing may no longer be applicable to such large-scale simulations. The system concurrently performs almost all of the visualization tasks on a computation server and uses compressed visualized image data for communications between the server and the user terminal. Consequently, the volumes of data transferred over the network are much smaller than the raw data and efficient visualization of large volumes of data in wide-area network environments that include the Internet becomes possible. We have realized several ideas, such as high-speed visualization algorithms for use on parallel vector supercomputers, to make the system practical. The system was applied to an actual CFD code (a simulation of the fluid flow around a baseball) on an NEC SX-4 and we observed, in this case, that the computational time increase due to the concurrent visualization was less than 1%.","subitem_description_type":"Other"}]},"item_3_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"118","bibliographic_titles":[{"bibliographic_title":"情報処理学会論文誌ハイパフォーマンスコンピューティングシステム（HPS） "}],"bibliographicPageStart":"107","bibliographicIssueDates":{"bibliographicIssueDate":"2000-11-15","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"SIG08(HPS2)","bibliographicVolumeNumber":"41"}]},"relation_version_is_last":true,"weko_creator_id":"1"},"created":"2025-01-18T22:50:45.821966+00:00","id":17882,"links":{}}