Incorrect documentation of DirichletBC implies it does not apply to interior facets
Bug #1077912 reported by
Martin Sandve Alnæs
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
DOLFIN |
New
|
Undecided
|
Unassigned |
Bug Description
According to
"The topological approach is faster, but will only identify degrees of freedom that are located on a facet that is entirely on the boundary."
However, this does not seem to be the case. I will attach here a code which changes behaviour when switching between marking all facets or all facets on the boundary, look for the lines:
if enable_bug:
boundaries.
else:
Wall(
summary: |
- Incorrect DirichletBC behaviour applying to interior facets + Incorrect documentation of DirichletBC implies it does not apply to + interior facets |
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Not exactly sure what the bug is...
Having rows which are zero is obviously a problem. This only occurs in the assemble_system statement when all facets are marked. Is this what you mean?