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Output functionals in CG discretizations #489

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merged 4 commits into from Dec 3, 2018
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@sdrave sdrave commented Nov 26, 2018

This PR adds support for assembling arbitrary l2 output functionals (on the interior or the boundary) for cg discretizations:

  • InstationaryProblem gets an additional functionals attribute to specify output functionals.
  • Assembly of these functionals is only implemented for CG. FV is still missing.
  • In pymor.operators.cg, the boundary treatment is moved to BoundaryL2ProductFunctionalP/Q1 which handles the assembly of dirichlet / neumann or arbitrary boundary l2 functionals. BoundaryDirichletFunctional is used for enforcing dirichlet constraints.

Additionally:

  • A small fix for NumpyMatrixBasedOperator.H.
  • Functions can now be multiplied, yielding a ProductFunction.
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@sdrave sdrave commented Nov 26, 2018

FYI, I want this in 0.5 as a preparation for #454, #469.

@sdrave sdrave added this to the 0.5 milestone Nov 26, 2018
@sdrave sdrave requested a review from ftalbrecht Nov 26, 2018
@sdrave sdrave force-pushed the discretize_output_functionals branch from d3823e4 to 38c8c0e Nov 26, 2018
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@codecov codecov bot commented Nov 26, 2018

Codecov Report

Merging #489 into master will increase coverage by 0.35%.
The diff coverage is 84.35%.

Impacted Files Coverage Δ
src/pymor/operators/numpy.py 80.9% <0%> (ø) ⬆️
src/pymor/analyticalproblems/elliptic.py 100% <100%> (ø) ⬆️
src/pymor/functions/basic.py 87.39% <26.31%> (-11.63%) ⬇️
src/pymor/discretizers/fv.py 83.46% <50%> (-0.54%) ⬇️
src/pymor/discretizers/cg.py 86.06% <76.47%> (-2.01%) ⬇️
src/pymor/grids/interfaces.py 82.3% <85.71%> (-0.31%) ⬇️
src/pymor/operators/cg.py 87.64% <97.95%> (+5.43%) ⬆️
src/pymor/vectorarrays/block.py 92.46% <0%> (+0.68%) ⬆️
src/pymor/operators/constructions.py 84.18% <0%> (+1.48%) ⬆️
... and 3 more
@sdrave sdrave force-pushed the discretize_output_functionals branch from 38c8c0e to a1a2468 Nov 27, 2018
@sdrave sdrave merged commit 4b6a193 into master Dec 3, 2018
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@sdrave sdrave deleted the discretize_output_functionals branch Dec 3, 2018
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