Que Cat <[email protected]> writes: > Hello Jed, > > Thank for the information. I would take your first advise. Does SNESVI have > the same functionality as TAO complementary solver?
They are related, but not the same. SNESVI problems do not have to correspond to energy minimization, but it does need a well-posed variational inequality. Note that you can't simply take PDE + constraints and assume that it corresponds to a well-posed VI. There are examples of SNESVI.
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