Time Segment Correction Method for Parallel Time Integration

• Item type: Trans(1)
• 公開日: 2019-11-28
• タイトル: Time Segment Correction Method for Parallel Time Integration
• タイトル / 言語: en
• タイトル: Time Segment Correction Method for Parallel Time Integration
• 言語: eng
• キーワード / 主題Scheme: Other
• キーワード / 主題: parallel time integration, non-linear problem
• 資源タイプ / 資源タイプ識別子: http://purl.org/coar/resource_type/c_6501
• 資源タイプ: journal article
• 著者所属: Kogakuin University
• 著者所属: Ark Infomation Systems
• 著者所属: Kogakuin University
• 著者所属: Hokkaido University
• 著者所属(英): en
• 著者所属(英): Kogakuin University
• 著者所属(英): en
• 著者所属(英): Ark Infomation Systems
• 著者所属(英): en
• 著者所属(英): Kogakuin University
• 著者所属(英): en
• 著者所属(英): Hokkaido University
• 著者名: Akihiro, Fujii; Shigeo, Kaneko; Teruo, Tanaka; Takeshi, Iwashita
• 著者名(英): Akihiro, Fujii; Shigeo, Kaneko; Teruo, Tanaka; Takeshi, Iwashita
• 論文抄録 / 内容記述タイプ: Other
• 論文抄録 / 内容記述: Parallel time integration methods provide the time integral simulation with parallelism in time direction and enhance the performance of the applications on parallel machines. Many parallel time integration methods apply re-discretization with enlarged time step width to propagate prior time step information to later time steps with low calculation cost. However, this re-discretization tends to create an unstable time integral problem and causes the performance degradation depending on the length of the time step width. Therefore, we paid attention to the correction scheme involved in the (parallel) TP-EEC method that uses Jacobian matrices of original simulation problem to propagate the prior time step information to later time steps very quickly. This paper showed our parallel time integration approach using a correction method similar to the TP-EEC method, and proposed the efficient implementation methods with pipeplined coarse level correction. The performance results for simple non-linear time step simulation show our method performed well and was faster than other representative parallel time integration scheme.; ------------------------------; This is a preprint of an article intended for publication Journal of; Information Processing(JIP). This preprint should not be cited. This; article should be cited as: Journal of Information Processing Vol.27(2019) (online); ------------------------------
• 論文抄録(英) / 内容記述タイプ: Other
• 論文抄録(英) / 内容記述: Parallel time integration methods provide the time integral simulation with parallelism in time direction and enhance the performance of the applications on parallel machines. Many parallel time integration methods apply re-discretization with enlarged time step width to propagate prior time step information to later time steps with low calculation cost. However, this re-discretization tends to create an unstable time integral problem and causes the performance degradation depending on the length of the time step width. Therefore, we paid attention to the correction scheme involved in the (parallel) TP-EEC method that uses Jacobian matrices of original simulation problem to propagate the prior time step information to later time steps very quickly. This paper showed our parallel time integration approach using a correction method similar to the TP-EEC method, and proposed the efficient implementation methods with pipeplined coarse level correction. The performance results for simple non-linear time step simulation show our method performed well and was faster than other representative parallel time integration scheme.; ------------------------------; This is a preprint of an article intended for publication Journal of; Information Processing(JIP). This preprint should not be cited. This; article should be cited as: Journal of Information Processing Vol.27(2019) (online); ------------------------------
• 書誌レコードID / 収録物識別子タイプ: NCID
• 書誌レコードID / 収録物識別子: AA11833852
• 書誌情報: 情報処理学会論文誌コンピューティングシステム（ACS）; 巻 12, 号 4, 発行日 2019-11-28
• ISSN / 収録物識別子タイプ: ISSN
• ISSN / 収録物識別子: 1882-7829
• 出版者 / 言語: ja
• 出版者: 情報処理学会