dolfin team mailing list archive

["Garth N. Wells" <gnw20@xxxxxxxxx>]

Anders Logg wrote:
> On Wed, Oct 07, 2009 at 10:25:49AM +0100, Garth N. Wells wrote:
> > How costly is this call in Function::restrict
> >
> >     _function_space->has_element(element, dolfin_cell)
>
> Very cheap (I think).

I expect that this one isn't:

  boost::scoped_array<uint>
    dofs(new uint[dofmap.local_dimension(ufc_cell)]);

Garth

> > ? It is called for every coefficient on every cell during assembly.
>
> This is why I worked on the hash thing yesterday. It does two
> comparisons, first comparing two uint then to pointers. The hash is
> now an uint so it should be fast.
>
> We could also make this function inline.
>
> --
> Anders
>
>
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