[petsc-users] DMPlex filter with Face Sets

Jed Brown jed at jedbrown.org
Sat Jan 15 08:23:31 CST 2022

Thibault Bridel-Bertomeu <thibault.bridelbertomeu at gmail.com> writes:

> I think it would be perfect if the 0-sized labels were also completely
> filtered out. Is that something that you could add to the
> DMPlexFliterLabels_Internal function ?

Why do you want it filtered? Determining that it's zero sized requires all processes agreeing, and DMAddBoundary is collective so *no* ranks can add a boundary condition unless the label exists on *all* ranks (even if zero sized on many).

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