On Fri, 18 Oct 2019, Alexander Lindsay wrote:
> Is there a way to prevent prolongation/restriction of some System vectors > during mesh adaptation? I see the *preserve* APIs but that doesn't look > like it does what I would want.... Basically I am performing grid > sequencing, obtaining initial guesses for fine grids based on solutions of > coarse grids. In a transient problem I have an old solution vector for > calculating time derivatives. Restricting this vector for the initial > coarse grid solution and then prolonging it for the fine grid solution > loses the fine detail from the previous time step. I don't think we've got anything like that. Part of having a vector attached to a System is having the system take care of making sure it matches the system DoF partitioning. The way to keep a vector that's *that* independent of a System is to not add it to the System in the first place. Can you either allocate your vector separately, or instead temporarily clone it and save the clone through your coarsen/refine cycle? --- Roy _______________________________________________ Libmesh-users mailing list Libmesh-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/libmesh-users
