UFC

UFC does not convey information about which domains need which coefficients

Registered by Anders Logg on 2011-11-16

A form may have multiple terms defined with multiple coefficients and not all those coefficients may be needed on all domains.

Implications:
- Problematic with functions like FacetArea which are only properly defined on facets but will be evaluated also on cells if form contains both a cell and a facet integral
- Efficiency issue since all coefficients will be evaluated on each domain even if only one is needed

See also bug #862383

Information needs to be added here for how to extend UFC to handle this above issue.

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