Hi Denis,

Wouldn't it be easier to just create a copy of the vector by

ghosted_vector.reinit(locally_owned_set, locally_relevant_set, comm);
ghosted_vector = solution;
ghosted_vector.update_ghost_values();

The reason why there is a VectorView in the MatrixFreeOperators::Base class is that I want to modify the original vector which I don't assume you need in your code. (It would actually be dangerous if you used a vector with the locally relevant dofs as ghosts because that gets the local indices wrong as compared to the storage of MatrixFree-compatible vectors.)

Best,
Martin

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