On Fri, 27 Jan 2017, Manav Bhatia wrote:

> If I create multiple elements that occupy the same (exact) spatial
> domain, but with distinct nodes (multiple nodes defined at the same
> spatial point), would there be any negative implication for
> ReplicatedMesh or ParallelMesh data structures?

If you want to be able to do restarts with nodes which are
topologically distinct but spatially coincident, you have to configure
libMesh with --enable-unique-id, which adds another 8 bytes to every
node and element.
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Roy

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