| Thread Previous • Date Previous • Date Next • Thread Next |
Anders Logg wrote:
On Mon, Feb 16, 2009 at 09:57:26AM +0100, Martin Sandve Alnæs wrote:On Sun, Feb 15, 2009 at 10:10 PM, Anders Logg <logg@xxxxxxxxx> wrote:On Fri, Feb 13, 2009 at 02:30:00PM +0100, Martin Sandve Alnæs wrote:Attaching metadata to an integral is implemented, but we haven't decided what format the metadata should be in.I think there needs to be a convention as part of UFL for how to specify the integration rule. Otherwise different form compilers will invent different conventions and interpret the metadata differently.Agree.Here's a suggestions: metadata = ("quadrature", degree) metadata = ("tensor", degree)Here you're already into FFC territory... Integration order is an important mathematical property, the method for code generation is not. "tensor" is in the latter category.Hints for the degree of the quadrature is also form compiler specific. There may be other ways to evaluate the integral than quadrature, for example by random sampling, symbolic integration (like in SyFi) or using a tensor representation (FFC).
Tensor representation still uses quadrature, it's just that it's performed a priori rather than at runtime.
Garth
------------------------------------------------------------------------ _______________________________________________ UFL-dev mailing list UFL-dev@xxxxxxxxxx http://fenics.org/mailman/listinfo/ufl-dev
| Thread Previous • Date Previous • Date Next • Thread Next |
