Hierarchical Optimization Time Integration for CFL-Rate MPM Stepping
Hierarchical Optimization Time Integration for CFL-Rate MPM Stepping
复制标题
CFL 速率 MPM 步进的分层优化时间积分
DOI:
10.1145/3386760
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发表时间:
2019-11
影响因子:
6.2
通讯作者:
Chenfanfu Jiang
中科院分区:
文献类型:
--
作者:
Xinlei Wang;Minchen Li;Yu Fang;Xinxin Zhang;Ming Gao;Min Tang;Danny M. Kaufman;Chenfanfu Jiang
We propose Hierarchical Optimization Time Integration (HOT) for efficient implicit timestepping of the material point method (MPM) irrespective of simulated materials and conditions. HOT is an MPM-specialized hierarchical optimization algorithm that solves nonlinear timestep problems for large-scale MPM systems near the CFL limit. HOT provides convergent simulations out of the box across widely varying materials and computational resolutions without parameter tuning. As an implicit MPM timestepper accelerated by a custom-designed Galerkin multigrid wrapped in a quasi-Newton solver, HOT is both highly parallelizable and robustly convergent. As we show in our analysis, HOT maintains consistent and efficient performance even as we grow stiffness, increase deformation, and vary materials over a wide range of finite strain, elastodynamic, and plastic examples. Through careful benchmark ablation studies, we compare the effectiveness of HOT against seemingly plausible alternative combinations of MPM with standard multigrid and other Newton-Krylov models. We show how these alternative designs result in severe issues and poor performance. In contrast, HOT outperforms existing state-of-the-art, heavily optimized implicit MPM codes with an up to 10× performance speedup across a wide range of challenging benchmark test simulations.
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DOI:
10.1145/2601097.2601176
发表时间:
2014-07
期刊:
ACM Transactions on Graphics (TOG)
影响因子:
--
作者:
A. Stomakhin;Craig A. Schroeder;Chenfanfu Jiang;Lawrence Chai;J. Teran;Andrew Selle
通讯作者:
A. Stomakhin;Craig A. Schroeder;Chenfanfu Jiang;Lawrence Chai;J. Teran;Andrew Selle
DOI:
10.1007/b98874
发表时间:
2018-09
期刊:
--
影响因子:
--
作者:
J. Nocedal;Stephen J. Wright
通讯作者:
J. Nocedal;Stephen J. Wright
影响因子:
4.1
作者:
K. Fidkowski;Todd A. Oliver;James Lu;D. Darmofal
通讯作者:
K. Fidkowski;Todd A. Oliver;James Lu;D. Darmofal
DOI:
--
发表时间:
2000-11
期刊:
--
影响因子:
--
作者:
W. Briggs;V. Henson;S. McCormick
通讯作者:
W. Briggs;V. Henson;S. McCormick
DOI:
10.1145/3306346.3322951
发表时间:
2019-07
期刊:
ACM Transactions on Graphics (TOG)
影响因子:
--
作者:
Minchen Li;Ming Gao;Timothy R. Langlois;Chenfanfu Jiang;D. Kaufman
通讯作者:
Minchen Li;Ming Gao;Timothy R. Langlois;Chenfanfu Jiang;D. Kaufman