On Fri, 6 Feb 2015, Manav Bhatia wrote:

> If the dofs constraint row is used to couple two dofs that otherwise
> do not have any coupling in the mesh (meaning, they belong to
> independent elements), then is this information taken into account
> in defining the sparsity pattern?

Yes.  Likewise for the definition of "ghost" dofs in parallel vectors.
---
Roy

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