Parallel-in-Time for Parabolic Optimal Control Problems Using PFASST
Parallel-in-Time for Parabolic Optimal Control Problems Using PFASST
复制标题
使用 PFASST 求解抛物线最优控制问题的时间并行
DOI:
10.1007/978-3-319-93873-8_34
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发表时间:
2017
期刊:
影响因子:
--
通讯作者:
Olof B.
中科院分区:
文献类型:
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作者:
Bjørstad;Petter E;Brenner;Susanne C;Halpern;Lawrence;Hyea Hyun;Kornhuber;Rahman;Widlund;Olof B.
In gradient-based methods for parabolic optimal control problems, it is necessary to solve both the state equation and a backward-in-time adjoint equation in each iteration of the optimization method. In order to facilitate fully parallel gradient-type and nonlinear conjugate gradient methods for the solution of such optimal control problems, we discuss the application of the parallel-in-time method PFASST to adjoint gradient computation. In addition to enabling time parallelism, PFASST provides high flexibility for handling nonlinear equations, as well as potential extra computational savings from reusing previous solutions in the optimization loop. The approach is demonstrated here for a model reaction-diffusion optimal control problem.
DOI:
10.1007/978-3-319-23321-5_8
发表时间:
2016
期刊:
影响因子:
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作者:
Ulbrich;Stefan;Carraro;Thomas;Geiger;Michael;Körkel;Stefan;Rannacher
通讯作者:
Rannacher
DOI:
10.1007/978-3-319-05083-6_34
发表时间:
2014
期刊:
Comput. Phys. Commun.
影响因子:
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作者:
R. Herzog;A. Rösch;S. Ulbrich;W. Wollner
通讯作者:
W. Wollner