什么是adjoint solver?

entropies

麻烦懂这个的XDJM们给个大概的介绍，看到有种这个adjoint solver 一般是CFD和automatic differentiation（AD）一起用的，不知道这是什么，也不知道AD是主要用来做啥的

敬请赐教！

flowinflow

Adjoint can be seen as the differentiated nonlinear flow solver, in the reverse mode.
There are continuous and discrete adjoint, continuous adjoint see a.jameson from
stanford, discrete adjoint see mike giles from oxford.

AD is mainly used for discrete adjoint to automatically generate derivative subroutines.

原帖由 entropies 于 2013-1-18 15:03 发表

                               
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麻烦懂这个的XDJM们给个大概的介绍，看到有种这个adjoint solver 一般是CFD和automatic differentiation（AD）一起用的，不知道这是什么，也不知道AD是主要用来做啥的

敬请赐教！

flowinflow

Here you can find some lit on discrete adjoint, from prof giles group.
http://people.maths.ox.ac.uk/gilesm/hydra.html

原帖由 flowinflow 于 2013-1-18 23:06 发表

                               
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Adjoint can be seen as the differentiated nonlinear flow solver, in the reverse mode.
There are continuous and discrete adjoint, continuous adjoint see a.jameson from
stanford, discrete adjoint see  ...

lovejqk201

谢谢分享了