ffc team mailing list archive

[Anders Logg <logg@xxxxxxxxx>]

On Fri, Aug 21, 2009 at 12:56:32PM +0200, Kristian Oelgaard wrote:
> Quoting FFC <ffc@xxxxxxxxxx>:
>
> > One or more new changesets pushed to the primary ffc repository.
> > A short summary of the last three changesets is included below.
> >
> > changeset:   1621:96ac3d15dc2c4dbbb5c4fdaefbc8581684c43cf2
> > tag:         tip
> > user:        "Kristian Oelgaard <k.b.oelgaard@xxxxxxxxxx>"
> > date:        Fri Aug 21 11:49:02 2009 +0100
> > files:       ffc/compiler/compiler.py ffc/compiler/integrals.py
> > ffc/compiler/tensor/tensorgenerator.py ffc/compiler/ufcformat.py
> > test/regression/reference/quadrature/Biharmonic.h
> > test/regression/reference/quadrature/Constant.h
> > test/regression/reference/quadrature/Elasticity.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/MixedPoisson.h
> > test/regression/reference/quadrature/NavierStokes.h
> > test/regression/reference/quadrature/NeumannProblem.h
> > test/regression/reference/quadrature/Optimization.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/ReactionDiffu
> >  sion.h test/regression/reference/quadrature/StabilisedStokes.h
> > test/regression/reference/quadrature/Stokes.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/Equation.h
> > test/regression/reference/tensor/FacetIntegrals.h
> > test/regression/reference/tensor/Heat.h
> > test/regression/reference/tensor/Mass.h
> > test/regression/reference/tensor/MixedPoisson.h
> > test/regression/reference/tensor/NavierStokes.h
> > test/regression/reference/tensor/NeumannProblem.h
> > test/regression/reference/tensor/Optimization.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/regres
> >  sion/reference/tensor/SubDomains.h
> > test/regression/reference/tensor/VectorLaplaceGradCurl.h
> > test/regression/test.py test/unit/test_reduce_operations2.py
> > description:
> > Use loop to reset element tensor. Bug fix in regression test.py when same
> > file fails for both representations.
>
> I changed the generated code inside the tabulate_tensor() function, such that we
> use a loop:
>
> // Reset values of the element tensor block
> for (unsigned int j = 0; j < 10000; j++)
>   A[j] = 0;
>
> instead of:
>
> A[0] = 0;
> ...
> A[9999] = 0;
>
> which saves an awful lot of lines for higher order elements.
>
> No loop is generated if the tensor only has one entry e.g., functional:
>
> A[0] = 0;
>
> We can set the limit for when to use one or the other reset method to whatever
> we like of course, but most compiler should be able to figure the simple loop
> out with no overhead.

Would it be good to use std::fill for this?

--
Anders


> Kristian
>
> >
> > changeset:   1620:d717a46398a7f43ae41bbceee72f19029c2b02ba
> > user:        "Kristian Oelgaard <k.b.oelgaard@xxxxxxxxxx>"
> > date:        Thu Aug 20 15:35:09 2009 +0100
> > files:       ffc/compiler/quadrature/fraction.py
> > ffc/compiler/quadrature/optimisedquadraturetransformer.py
> > test/unit/test_symbolics.py
> > description:
> > Implement __div__ for fractions (quadrature optimisations).
> >
> >
> > changeset:   1619:235921dd98b9b0322ccf6ec2be1b31c6e77c41b0
> > user:        "Kristian Oelgaard <k.b.oelgaard@xxxxxxxxxx>"
> > date:        Wed Aug 19 15:48:09 2009 +0100
> > files:       doc/man/man1/ffc.1.gz doc/manual/chapters/manpagecopy.tex
> > doc/manual/ffc-user-manual.pdf
> > description:
> > Some updates to the man page.
> >
> > ----------------------------------------------------------------------
> > For more details, visit http://www.fenics.org/hg/ffc
> > _______________________________________________
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> > FFC-dev@xxxxxxxxxx
> > http://www.fenics.org/mailman/listinfo/ffc-dev
> >
>
>
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