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        湘潭大學數學與計算科學學院 岳孝強副教授: Parallel-in-time multigrid solver for two-dimensional space-fractional diffusion equations

        ([西財新聞] 發布于 :2019-06-12 )

        光華講壇——社會名流與企業家論壇第5437期

         

        主題:Parallel-in-time multigrid solver for two-dimensional space-fractional diffusion equations

        主講人:湘潭大學數學與計算科學學院  岳孝強副教授
        主持人:經濟數學學院  顧先明博士
        時 間:2019年6月13日(星期四)上午10:00-11:30
        地 點:西南財經大學柳林校區通博樓B412
        主辦單位:經濟數學學院 科研處

         

        主講人簡介

        岳孝強,現任湘潭大學副教授。2009年本科畢業于湘潭大學數學與計算科學學院,2015年在湘潭大學獲博士學位,師從舒適教授。主要從事高性能并行計算、多重網格與區域分解法等方面的研究。在Communications in Computational Physics, Computers & Mathematics with Applications, Computers & Fluids等學術期刊上已發表學術論文二十余篇。目前主持國家自然科學基金青年項目、湖南省自然科學基金青年項目等。

        內容提要

        The multigrid-reduction-in-time (MGRIT) technique has proven to be successful in achieving higher run-time speedup by exploiting parallelism in time. The talk is to develop and analyze an MGRIT algorithm, using FCF-relaxation with time-dependent time-grid propagators, to seek the finite element approximations of two-dimensional space-fractional diffusion equations. Numerical computations are included to confirm theoretical predictions and demonstrate the sharpness of the derived convergence upper bound.

        (時間方向多重網格規約技術通過在時間并行方法來實現更高的運行時間加速。本報告旨在發展和分析時間方向多重網格規約技術,且結合一種松弛技術及時間相關的時間步進算子,來構建二維空間分數階擴散方程的有限元解。數值算例用來證實理論結果及展示所導出的收斂上界更加精細。)

         

         

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