dolfin team mailing list archive

["Marie E. Rognes" <meg@xxxxxxxxx>]

On 06/05/11 21:47, Marie E. Rognes wrote:
> On 06/01/2011 05:45 PM, Johan Hake wrote:
> > On Wednesday June 1 2011 05:31:35 Anders Logg wrote:
> > > On Wed, Jun 01, 2011 at 01:29:20PM +0200, Marie E. Rognes wrote:
> > > > I'm for some strange reason loooking at dolfin.fem.Form and
> > > >
> > > > dolfin.fem.assemble:
> > > >      The form can be either an FFC form or a precompiled UFC form. 
> > > > If a
> > > >      precompiled or 'pure' FFC form is given, then coefficients and
> > > >      function_spaces have to be provided too. The coefficient 
> > > > functions
> > > >
> > > > Where and in what cases is the above used?
> > >
> > > I think this is something Martin and possibly Kent have requested
> > > before. It's not used anywhere I know.
> >
> > They were added so one could use dolfin to assemble a "pure" 
> > ufc::form. This
> > is a nice feature for people who come with their own form compiler, 
> > which is
> > not fully integrated with all the PyDOLFIN magic we have.
> >
> > The statement:
> >
> >    "dolfin can assemble any ufc complaint code"
> >
> > becomes a little more true with that possibility.
>
> Ok, thanks :-)

Late follow-up: so is the logic in dolfin.fem.form regarding given 
function_spaces and coefficients versus those in form_data mainly 
designed around this?

--
Marie