[petsc-dev] Scatter a single local value to multiple global values

[Jed Brown]

"Kong, Fande" <fande.kong at inl.gov> writes:
> How about the inverse of SF? The original leaf becomes  a new root, and the
> original leaf will map to multiple new leafs?

Chris has multiple local indices mapping to the same global index (this
is the usual local-to-global map).  He's eager to build a singular
matrix and irritated that the tooling intentionally makes that harder to
do by accident.  ;-)
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