Hoang Giang Bui <hgbk2...@gmail.com> writes: > Dear PETSc folks, > > While searching literature on the preconditioner for contact/mesh tying > problem, I saw the paper by Dr. Adams "Algebraic multigrid methods for > constrained linear systems with applications to contact problems in solid > mechanics, NLAA, 2004". Given the promising aspects the paper has shown for > constrained linear system, I wonder if some code's also available in PETSc > for testing/further extension?
This particular algorithm is not available within the PETSc library. Mark might have some code around, but I doubt it's maintained or easy to tinker with. You should be able to implement the algorithm fairly quickly using PETSc. It would make a great example if you're willing to contribute. And we can advise if you decide to write such an example.
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