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New: Created a new class FECouplingValues, that helps with assembling of coupled | ||
finite element methods across different dimensions or different grids. | ||
<br> | ||
(Luca Heltai, 2023/07/21) |
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cmake_minimum_required(VERSION 3.13.4) | ||
include(../scripts/setup_testsubproject.cmake) | ||
project(testsuite CXX) | ||
deal_ii_pickup_tests() |
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// --------------------------------------------------------------------- | ||
// | ||
// Copyright (C) 2023 by the deal.II authors | ||
// | ||
// This file is part of the deal.II library. | ||
// | ||
// The deal.II library is free software; you can use it, redistribute | ||
// it, and/or modify it under the terms of the GNU Lesser General | ||
// Public License as published by the Free Software Foundation; either | ||
// version 2.1 of the License, or (at your option) any later version. | ||
// The full text of the license can be found in the file LICENSE.md at | ||
// the top level directory of deal.II. | ||
// | ||
// --------------------------------------------------------------------- | ||
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// Test basic properties of FECouplingValues | ||
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#include <deal.II/base/quadrature_lib.h> | ||
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#include <deal.II/fe/fe_coupling_values.h> | ||
#include <deal.II/fe/fe_q.h> | ||
#include <deal.II/fe/fe_values.h> | ||
#include <deal.II/fe/mapping_q.h> | ||
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#include <deal.II/grid/grid_generator.h> | ||
#include <deal.II/grid/grid_refinement.h> | ||
#include <deal.II/grid/tria.h> | ||
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#include <fstream> | ||
#include <iostream> | ||
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#include "../tests.h" | ||
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#include "../test_grids.h" | ||
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template <typename FCV> | ||
void | ||
inspect_fcv(const FCV & fcv, | ||
const std::vector<types::global_dof_index> &v1, | ||
const std::vector<types::global_dof_index> &v2) | ||
{ | ||
deallog << "n_coupling_dofs: " << fcv.n_coupling_dofs() << std::endl; | ||
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auto indices = fcv.get_coupling_dof_indices(v1, v2); | ||
Assert(indices.size() == fcv.n_coupling_dofs(), ExcInternalError()); | ||
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deallog << "coupling_dof_indices: "; | ||
for (const auto &i : indices) | ||
deallog << i << ' '; | ||
deallog << std::endl; | ||
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unsigned int idx = 0; | ||
for (const auto &v : indices) | ||
{ | ||
const auto pair = fcv.coupling_dof_to_dof_indices(idx); | ||
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deallog << " index " << idx << " global_dof_index: " << v | ||
<< ", index 1: " << static_cast<int>(pair[0]) | ||
<< ", index 2: " << static_cast<int>(pair[1]) << std::endl; | ||
++idx; | ||
} | ||
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deallog << "n_quadrature_points: " << fcv.n_quadrature_points() << std::endl; | ||
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for (const auto &q : fcv.quadrature_point_indices()) | ||
{ | ||
const auto pair = fcv.coupling_quadrature_to_quadrature_indices(q); | ||
const auto &[q1, q2] = fcv.quadrature_point(q); | ||
deallog << " q index " << q << ", index 1: " << pair[0] | ||
<< ", index 2: " << pair[1] << ", q1: " << q1 << ", q2: " << q2 | ||
<< std::endl; | ||
} | ||
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deallog << std::endl; | ||
} | ||
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template <int dim> | ||
void | ||
test() | ||
{ | ||
Triangulation<dim> tria; | ||
TestGrids::hyper_line(tria, 2); | ||
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DoFHandler<dim> dofh(tria); | ||
FE_Q<dim> fe(1); | ||
dofh.distribute_dofs(fe); | ||
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MappingQ<dim> mapping(1); | ||
UpdateFlags update_flags = update_quadrature_points | update_JxW_values; | ||
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FEValues<dim> fv1(mapping, fe, QGauss<dim>(fe.degree + 1), update_flags); | ||
FEValues<dim> fv2(mapping, fe, QGauss<dim>(fe.degree + 1), update_flags); | ||
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FEValues<dim> fv3(mapping, fe, QTrapezoid<dim>(), update_flags); | ||
FEValues<dim> fv4(mapping, fe, QTrapezoid<dim>(), update_flags); | ||
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FEFaceValues<dim> fv5(mapping, fe, QTrapezoid<dim - 1>(), update_flags); | ||
FEFaceValues<dim> fv6(mapping, fe, QTrapezoid<dim - 1>(), update_flags); | ||
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std::vector<types::global_dof_index> v1(fe.dofs_per_cell); | ||
std::vector<types::global_dof_index> v2(fe.dofs_per_cell); | ||
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auto cell1 = dofh.begin(); | ||
fv1.reinit(cell1); | ||
cell1->get_dof_indices(v1); | ||
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unsigned int boundary_face = numbers::invalid_unsigned_int; | ||
unsigned int internal_face = numbers::invalid_unsigned_int; | ||
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for (const unsigned int f : cell1->face_indices()) | ||
{ | ||
if (cell1->at_boundary(f)) | ||
{ | ||
boundary_face = f; | ||
} | ||
else if (!cell1->at_boundary(f)) | ||
{ | ||
internal_face = f; | ||
} | ||
if (boundary_face != numbers::invalid_unsigned_int && | ||
internal_face != numbers::invalid_unsigned_int) | ||
break; | ||
} | ||
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auto cell2 = cell1->neighbor(internal_face); | ||
fv2.reinit(cell2); | ||
cell2->get_dof_indices(v2); | ||
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{ | ||
deallog << "** coupling between cell1 and cell2 (tensor) **" << std::endl; | ||
FECouplingValues<dim> fcv(fv1, fv2, DoFCouplingType::contiguous); | ||
inspect_fcv(fcv, v1, v2); | ||
} | ||
{ | ||
deallog << "** coupling between cell1 and cell2 (unrolled) **" << std::endl; | ||
FECouplingValues<dim> fcv(fv1, | ||
fv2, | ||
DoFCouplingType::contiguous, | ||
QuadratureCouplingType::unrolled); | ||
inspect_fcv(fcv, v1, v2); | ||
} | ||
{ | ||
deallog << "** coupling between cell1 and cell2 Trapez (overlapping) **" | ||
<< std::endl; | ||
fv3.reinit(cell1); | ||
fv4.reinit(cell2); | ||
FECouplingValues<dim> fcv(fv3, | ||
fv4, | ||
DoFCouplingType::contiguous, | ||
QuadratureCouplingType::overlapping); | ||
inspect_fcv(fcv, v1, v2); | ||
} | ||
{ | ||
deallog | ||
<< "** coupling between cell1 and boundary face, trapez (overlapping) **" | ||
<< std::endl; | ||
fv3.reinit(cell1); | ||
fv5.reinit(cell1, boundary_face); | ||
FECouplingValues<dim> fcv(fv3, | ||
fv5, | ||
DoFCouplingType::contiguous, | ||
QuadratureCouplingType::overlapping); | ||
inspect_fcv(fcv, v1, v1); | ||
} | ||
{ | ||
deallog | ||
<< "** coupling between cell1 and cell1->internal_face, trapez (overlapping) **" | ||
<< std::endl; | ||
fv3.reinit(cell1); | ||
fv5.reinit(cell1, internal_face); | ||
FECouplingValues<dim> fcv(fv3, | ||
fv5, | ||
DoFCouplingType::contiguous, | ||
QuadratureCouplingType::overlapping); | ||
inspect_fcv(fcv, v1, v2); | ||
} | ||
{ | ||
deallog | ||
<< "** coupling between cell1 and cell2->internal_face, trapez (overlapping) **" | ||
<< std::endl; | ||
fv3.reinit(cell1); | ||
fv5.reinit(cell2, cell1->neighbor_of_neighbor(internal_face)); | ||
FECouplingValues<dim> fcv(fv3, | ||
fv5, | ||
DoFCouplingType::contiguous, | ||
QuadratureCouplingType::overlapping); | ||
inspect_fcv(fcv, v1, v2); | ||
} | ||
{ | ||
deallog | ||
<< "** coupling between cell1 and cell2->other_face, trapez (overlapping) **" | ||
<< std::endl; | ||
fv3.reinit(cell1); | ||
fv5.reinit(cell2, internal_face); | ||
FECouplingValues<dim> fcv(fv3, | ||
fv5, | ||
DoFCouplingType::contiguous, | ||
QuadratureCouplingType::overlapping); | ||
inspect_fcv(fcv, v1, v2); | ||
} | ||
{ | ||
deallog | ||
<< "** coupling between cell1->face(0) and cell1->face(2), trapez (tensor) **" | ||
<< std::endl; | ||
fv5.reinit(cell1, 0); | ||
fv6.reinit(cell1, 2); | ||
FECouplingValues<dim> fcv(fv5, | ||
fv6, | ||
DoFCouplingType::contiguous, | ||
QuadratureCouplingType::tensor_product); | ||
inspect_fcv(fcv, v1, v1); | ||
} | ||
} | ||
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int | ||
main() | ||
{ | ||
initlog(); | ||
test<2>(); | ||
} |
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DEAL::** coupling between cell1 and cell2 (tensor) ** | ||
DEAL::n_coupling_dofs: 8 | ||
DEAL::coupling_dof_indices: 0 1 2 3 1 4 3 5 | ||
DEAL:: index 0 global_dof_index: 0, index 1: 0, index 2: -1 | ||
DEAL:: index 1 global_dof_index: 1, index 1: 1, index 2: -1 | ||
DEAL:: index 2 global_dof_index: 2, index 1: 2, index 2: -1 | ||
DEAL:: index 3 global_dof_index: 3, index 1: 3, index 2: -1 | ||
DEAL:: index 4 global_dof_index: 1, index 1: -1, index 2: 0 | ||
DEAL:: index 5 global_dof_index: 4, index 1: -1, index 2: 1 | ||
DEAL:: index 6 global_dof_index: 3, index 1: -1, index 2: 2 | ||
DEAL:: index 7 global_dof_index: 5, index 1: -1, index 2: 3 | ||
DEAL::n_quadrature_points: 16 | ||
DEAL:: q index 0, index 1: 0, index 2: 0, q1: 0.211325 0.211325, q2: 1.21132 0.211325 | ||
DEAL:: q index 1, index 1: 0, index 2: 1, q1: 0.211325 0.211325, q2: 1.78868 0.211325 | ||
DEAL:: q index 2, index 1: 0, index 2: 2, q1: 0.211325 0.211325, q2: 1.21132 0.788675 | ||
DEAL:: q index 3, index 1: 0, index 2: 3, q1: 0.211325 0.211325, q2: 1.78868 0.788675 | ||
DEAL:: q index 4, index 1: 1, index 2: 0, q1: 0.788675 0.211325, q2: 1.21132 0.211325 | ||
DEAL:: q index 5, index 1: 1, index 2: 1, q1: 0.788675 0.211325, q2: 1.78868 0.211325 | ||
DEAL:: q index 6, index 1: 1, index 2: 2, q1: 0.788675 0.211325, q2: 1.21132 0.788675 | ||
DEAL:: q index 7, index 1: 1, index 2: 3, q1: 0.788675 0.211325, q2: 1.78868 0.788675 | ||
DEAL:: q index 8, index 1: 2, index 2: 0, q1: 0.211325 0.788675, q2: 1.21132 0.211325 | ||
DEAL:: q index 9, index 1: 2, index 2: 1, q1: 0.211325 0.788675, q2: 1.78868 0.211325 | ||
DEAL:: q index 10, index 1: 2, index 2: 2, q1: 0.211325 0.788675, q2: 1.21132 0.788675 | ||
DEAL:: q index 11, index 1: 2, index 2: 3, q1: 0.211325 0.788675, q2: 1.78868 0.788675 | ||
DEAL:: q index 12, index 1: 3, index 2: 0, q1: 0.788675 0.788675, q2: 1.21132 0.211325 | ||
DEAL:: q index 13, index 1: 3, index 2: 1, q1: 0.788675 0.788675, q2: 1.78868 0.211325 | ||
DEAL:: q index 14, index 1: 3, index 2: 2, q1: 0.788675 0.788675, q2: 1.21132 0.788675 | ||
DEAL:: q index 15, index 1: 3, index 2: 3, q1: 0.788675 0.788675, q2: 1.78868 0.788675 | ||
DEAL:: | ||
DEAL::** coupling between cell1 and cell2 (unrolled) ** | ||
DEAL::n_coupling_dofs: 8 | ||
DEAL::coupling_dof_indices: 0 1 2 3 1 4 3 5 | ||
DEAL:: index 0 global_dof_index: 0, index 1: 0, index 2: -1 | ||
DEAL:: index 1 global_dof_index: 1, index 1: 1, index 2: -1 | ||
DEAL:: index 2 global_dof_index: 2, index 1: 2, index 2: -1 | ||
DEAL:: index 3 global_dof_index: 3, index 1: 3, index 2: -1 | ||
DEAL:: index 4 global_dof_index: 1, index 1: -1, index 2: 0 | ||
DEAL:: index 5 global_dof_index: 4, index 1: -1, index 2: 1 | ||
DEAL:: index 6 global_dof_index: 3, index 1: -1, index 2: 2 | ||
DEAL:: index 7 global_dof_index: 5, index 1: -1, index 2: 3 | ||
DEAL::n_quadrature_points: 4 | ||
DEAL:: q index 0, index 1: 0, index 2: 0, q1: 0.211325 0.211325, q2: 1.21132 0.211325 | ||
DEAL:: q index 1, index 1: 1, index 2: 1, q1: 0.788675 0.211325, q2: 1.78868 0.211325 | ||
DEAL:: q index 2, index 1: 2, index 2: 2, q1: 0.211325 0.788675, q2: 1.21132 0.788675 | ||
DEAL:: q index 3, index 1: 3, index 2: 3, q1: 0.788675 0.788675, q2: 1.78868 0.788675 | ||
DEAL:: | ||
DEAL::** coupling between cell1 and cell2 Trapez (overlapping) ** | ||
DEAL::n_coupling_dofs: 8 | ||
DEAL::coupling_dof_indices: 0 1 2 3 1 4 3 5 | ||
DEAL:: index 0 global_dof_index: 0, index 1: 0, index 2: -1 | ||
DEAL:: index 1 global_dof_index: 1, index 1: 1, index 2: -1 | ||
DEAL:: index 2 global_dof_index: 2, index 1: 2, index 2: -1 | ||
DEAL:: index 3 global_dof_index: 3, index 1: 3, index 2: -1 | ||
DEAL:: index 4 global_dof_index: 1, index 1: -1, index 2: 0 | ||
DEAL:: index 5 global_dof_index: 4, index 1: -1, index 2: 1 | ||
DEAL:: index 6 global_dof_index: 3, index 1: -1, index 2: 2 | ||
DEAL:: index 7 global_dof_index: 5, index 1: -1, index 2: 3 | ||
DEAL::n_quadrature_points: 2 | ||
DEAL:: q index 0, index 1: 1, index 2: 0, q1: 1.00000 0.00000, q2: 1.00000 0.00000 | ||
DEAL:: q index 1, index 1: 3, index 2: 2, q1: 1.00000 1.00000, q2: 1.00000 1.00000 | ||
DEAL:: | ||
DEAL::** coupling between cell1 and boundary face, trapez (overlapping) ** | ||
DEAL::n_coupling_dofs: 8 | ||
DEAL::coupling_dof_indices: 0 1 2 3 0 1 2 3 | ||
DEAL:: index 0 global_dof_index: 0, index 1: 0, index 2: -1 | ||
DEAL:: index 1 global_dof_index: 1, index 1: 1, index 2: -1 | ||
DEAL:: index 2 global_dof_index: 2, index 1: 2, index 2: -1 | ||
DEAL:: index 3 global_dof_index: 3, index 1: 3, index 2: -1 | ||
DEAL:: index 4 global_dof_index: 0, index 1: -1, index 2: 0 | ||
DEAL:: index 5 global_dof_index: 1, index 1: -1, index 2: 1 | ||
DEAL:: index 6 global_dof_index: 2, index 1: -1, index 2: 2 | ||
DEAL:: index 7 global_dof_index: 3, index 1: -1, index 2: 3 | ||
DEAL::n_quadrature_points: 2 | ||
DEAL:: q index 0, index 1: 0, index 2: 0, q1: 0.00000 0.00000, q2: 0.00000 0.00000 | ||
DEAL:: q index 1, index 1: 2, index 2: 1, q1: 0.00000 1.00000, q2: 0.00000 1.00000 | ||
DEAL:: | ||
DEAL::** coupling between cell1 and cell1->internal_face, trapez (overlapping) ** | ||
DEAL::n_coupling_dofs: 8 | ||
DEAL::coupling_dof_indices: 0 1 2 3 1 4 3 5 | ||
DEAL:: index 0 global_dof_index: 0, index 1: 0, index 2: -1 | ||
DEAL:: index 1 global_dof_index: 1, index 1: 1, index 2: -1 | ||
DEAL:: index 2 global_dof_index: 2, index 1: 2, index 2: -1 | ||
DEAL:: index 3 global_dof_index: 3, index 1: 3, index 2: -1 | ||
DEAL:: index 4 global_dof_index: 1, index 1: -1, index 2: 0 | ||
DEAL:: index 5 global_dof_index: 4, index 1: -1, index 2: 1 | ||
DEAL:: index 6 global_dof_index: 3, index 1: -1, index 2: 2 | ||
DEAL:: index 7 global_dof_index: 5, index 1: -1, index 2: 3 | ||
DEAL::n_quadrature_points: 2 | ||
DEAL:: q index 0, index 1: 1, index 2: 0, q1: 1.00000 0.00000, q2: 1.00000 0.00000 | ||
DEAL:: q index 1, index 1: 3, index 2: 1, q1: 1.00000 1.00000, q2: 1.00000 1.00000 | ||
DEAL:: | ||
DEAL::** coupling between cell1 and cell2->internal_face, trapez (overlapping) ** | ||
DEAL::n_coupling_dofs: 8 | ||
DEAL::coupling_dof_indices: 0 1 2 3 1 4 3 5 | ||
DEAL:: index 0 global_dof_index: 0, index 1: 0, index 2: -1 | ||
DEAL:: index 1 global_dof_index: 1, index 1: 1, index 2: -1 | ||
DEAL:: index 2 global_dof_index: 2, index 1: 2, index 2: -1 | ||
DEAL:: index 3 global_dof_index: 3, index 1: 3, index 2: -1 | ||
DEAL:: index 4 global_dof_index: 1, index 1: -1, index 2: 0 | ||
DEAL:: index 5 global_dof_index: 4, index 1: -1, index 2: 1 | ||
DEAL:: index 6 global_dof_index: 3, index 1: -1, index 2: 2 | ||
DEAL:: index 7 global_dof_index: 5, index 1: -1, index 2: 3 | ||
DEAL::n_quadrature_points: 2 | ||
DEAL:: q index 0, index 1: 1, index 2: 0, q1: 1.00000 0.00000, q2: 1.00000 0.00000 | ||
DEAL:: q index 1, index 1: 3, index 2: 1, q1: 1.00000 1.00000, q2: 1.00000 1.00000 | ||
DEAL:: | ||
DEAL::** coupling between cell1 and cell2->other_face, trapez (overlapping) ** | ||
DEAL::n_coupling_dofs: 8 | ||
DEAL::coupling_dof_indices: 0 1 2 3 1 4 3 5 | ||
DEAL:: index 0 global_dof_index: 0, index 1: 0, index 2: -1 | ||
DEAL:: index 1 global_dof_index: 1, index 1: 1, index 2: -1 | ||
DEAL:: index 2 global_dof_index: 2, index 1: 2, index 2: -1 | ||
DEAL:: index 3 global_dof_index: 3, index 1: 3, index 2: -1 | ||
DEAL:: index 4 global_dof_index: 1, index 1: -1, index 2: 0 | ||
DEAL:: index 5 global_dof_index: 4, index 1: -1, index 2: 1 | ||
DEAL:: index 6 global_dof_index: 3, index 1: -1, index 2: 2 | ||
DEAL:: index 7 global_dof_index: 5, index 1: -1, index 2: 3 | ||
DEAL::n_quadrature_points: 0 | ||
DEAL:: | ||
DEAL::** coupling between cell1->face(0) and cell1->face(2), trapez (tensor) ** | ||
DEAL::n_coupling_dofs: 8 | ||
DEAL::coupling_dof_indices: 0 1 2 3 0 1 2 3 | ||
DEAL:: index 0 global_dof_index: 0, index 1: 0, index 2: -1 | ||
DEAL:: index 1 global_dof_index: 1, index 1: 1, index 2: -1 | ||
DEAL:: index 2 global_dof_index: 2, index 1: 2, index 2: -1 | ||
DEAL:: index 3 global_dof_index: 3, index 1: 3, index 2: -1 | ||
DEAL:: index 4 global_dof_index: 0, index 1: -1, index 2: 0 | ||
DEAL:: index 5 global_dof_index: 1, index 1: -1, index 2: 1 | ||
DEAL:: index 6 global_dof_index: 2, index 1: -1, index 2: 2 | ||
DEAL:: index 7 global_dof_index: 3, index 1: -1, index 2: 3 | ||
DEAL::n_quadrature_points: 4 | ||
DEAL:: q index 0, index 1: 0, index 2: 0, q1: 0.00000 0.00000, q2: 0.00000 0.00000 | ||
DEAL:: q index 1, index 1: 0, index 2: 1, q1: 0.00000 0.00000, q2: 1.00000 0.00000 | ||
DEAL:: q index 2, index 1: 1, index 2: 0, q1: 0.00000 1.00000, q2: 0.00000 0.00000 | ||
DEAL:: q index 3, index 1: 1, index 2: 1, q1: 0.00000 1.00000, q2: 1.00000 0.00000 | ||
DEAL:: |
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