ffc team mailing list archive

[Kristian Oelgaard <k.b.oelgaard@xxxxxxxxxx>]

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.

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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