[petsc-dev] What part of DMPlexProjectFunctionLocal restricts to the boundary in snes ex12?

[Jed Brown]

Geoffrey Irving <irving at naml.us> writes:
> I was missing the obvious INSERT_BC_VALUES parameter in the call to
> DMPlexProjectFunctionLocal.  It's a shame one has to loop over the
> interior just to set the boundary, but it does seem like the code
> produces the correct answer.

You can of course build an index to loop over any chosen feature fast.
But with no index, an iterator for a feature would still involve
visiting everything.
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