dolfin team mailing list archive

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

Peter Brune wrote:
> I think I see what's going on from looking at the generated UFC code 
> from ffc/demo/PoissonDG.ufl.  It's only generating and using the normal 
> for one side of the interior jump terms.  This is going to cause the 
> "first" cell here to have the proper normal, and the other to have a 
> flipped normal.  I can look at what happens in the interior facet 
> integral code and have it generate and use the proper normals for both 
> cells.

Could you register on Launchpad so the bug can be assigned to you.

Garth

> - Peter
>
> On Mon, Sep 14, 2009 at 12:28 PM, Garth N. Wells <gnw20@xxxxxxxxx 
> <mailto:gnw20@xxxxxxxxx>> wrote:
>
>     The new facet normal computation seems to give some seriously wrong
>     results for the Poisson DG demo. Take a looks at the DOLFIN demo
>
>         demo/pde/dg/poisson/python
>
>     Peter: Could you please take a look?
>
>     Garth
>
>     FFC wrote:
>      > One or more new changesets pushed to the primary ffc repository.
>      > A short summary of the last three changesets is included below.
>      >
>      > changeset:   1651:09868489fc408b1b0024bbd43e901112076d1e46
>      > tag:         tip
>      > user:        Peter Brune <brune@xxxxxxxxxxxxxxx
>     <mailto:brune@xxxxxxxxxxxxxxx>>
>      > date:        Mon Sep 14 11:08:25 2009 -0500
>      > files:       ffc/compiler/codesnippets.py
>      > description:
>      > Fixed computation of direction for facet normals
>      >
>      >
>      > changeset:   1650:aa7511f9cd9c4784418e76ad7b027b8bc1d30b39
>      > user:        Anders Logg <logg@xxxxxxxxx <mailto:logg@xxxxxxxxx>>
>      > date:        Mon Sep 14 17:20:00 2009 +0200
>      > files:       demo/Biharmonic.ufl ffc/compiler/codesnippets.py
>     ffc/compiler/removeunused.py
>     test/regression/reference/quadrature/Biharmonic.h
>     test/regression/reference/quadrature/Constant.h
>     test/regression/reference/quadrature/Elasticity.h
>     test/regression/reference/quadrature/ElementRestriction.h
>     test/regression/reference/quadrature/EnergyNorm.h
>     test/regression/reference/quadrature/Equation.h
>     test/regression/reference/quadrature/FacetIntegrals.h
>     test/regression/reference/quadrature/FunctionOperators.h
>     test/regression/reference/quadrature/Heat.h
>     test/regression/reference/quadrature/Mass.h
>     test/regression/reference/quadrature/MetaData.h
>     test/regression/reference/quadrature/MixedMixedElement.h
>     test/regression/reference/quadrature/MixedPoisson.h
>     test/regression/reference/quadrature/NavierStokes.h
>     test/regression/reference/quadrature/NeumannProblem.h
>     test/regression/reference/quadrature/Normals.h
>     test/regression/reference/quadrature/Optimization.h
>     test/regression/reference/quadra
>     ture/P5tet.h test/regression/reference/quadrature/P5tri.h
>     test/regression/reference/quadrature/Poisson.h
>     test/regression/reference/quadrature/PoissonDG.h
>     test/regression/reference/quadrature/PoissonSystem.h
>     test/regression/reference/quadrature/QuadratureElement.h
>     test/regression/reference/quadrature/ReactionDiffusion.h
>     test/regression/reference/quadrature/StabilisedStokes.h
>     test/regression/reference/quadrature/Stokes.h
>     test/regression/reference/quadrature/SubDomain.h
>     test/regression/reference/quadrature/SubDomains.h
>     test/regression/reference/quadrature/TensorWeightedPoisson.h
>     test/regression/reference/quadrature/VectorLaplaceGradCurl.h
>     test/regression/reference/tensor/Constant.h
>     test/regression/reference/tensor/Elasticity.h
>     test/regression/reference/tensor/ElementRestriction.h
>     test/regression/reference/tensor/EnergyNorm.h
>     test/regression/reference/tensor/Equation.h
>     test/regression/reference/tensor/FacetIntegrals.h
>     test/regression/reference/tensor/Heat.h test/regression/refere
>     nce/tensor/Mass.h test/regression/reference/tensor/MetaData.h
>     test/regression/reference/tensor/MixedMixedElement.h
>     test/regression/reference/tensor/MixedPoisson.h
>     test/regression/reference/tensor/NavierStokes.h
>     test/regression/reference/tensor/NeumannProblem.h
>     test/regression/reference/tensor/Normals.h
>     test/regression/reference/tensor/Optimization.h
>     test/regression/reference/tensor/P5tet.h
>     test/regression/reference/tensor/P5tri.h
>     test/regression/reference/tensor/Poisson.h
>     test/regression/reference/tensor/PoissonSystem.h
>     test/regression/reference/tensor/ReactionDiffusion.h
>     test/regression/reference/tensor/StabilisedStokes.h
>     test/regression/reference/tensor/Stokes.h
>     test/regression/reference/tensor/SubDomain.h
>     test/regression/reference/tensor/SubDomains.h
>     test/regression/reference/tensor/VectorLaplaceGradCurl.h
>     test/regression/test.py test/regression/update-references.sh
>      > description:
>      > Merge Peter's patch, add suppot for bool in remove_unused and
>     update references.
>      >
>      >
>      > changeset:   1649:2ef63eb5e7e7d0d24e81dee86eecb983ff044389
>      > user:        Peter Brune <brune@xxxxxxxxxxxxxxx
>     <mailto:brune@xxxxxxxxxxxxxxx>>
>      > date:        Fri Sep 11 12:21:19 2009 -0500
>      > files:       demo/Normals.ufl
>      > description:
>      > Added a demo for the normals
>      >
>      >
>     ----------------------------------------------------------------------
>      > For more details, visit http://www.fenics.org/hg/ffc
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