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Merge pull request #13058 from peterrum/ecl_pbc_orientation
MatrixFree: fix orientation for cell-centric loop and pbc
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// --------------------------------------------------------------------- | ||
// | ||
// Copyright (C) 2020 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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// Like pbc_orientation_02 but with cell-centric loops. | ||
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#include <deal.II/base/function.h> | ||
#include <deal.II/base/quadrature_lib.h> | ||
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#include <deal.II/dofs/dof_handler.h> | ||
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#include <deal.II/fe/fe_dgq.h> | ||
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#include <deal.II/grid/grid_tools.h> | ||
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#include <deal.II/matrix_free/fe_evaluation.h> | ||
#include <deal.II/matrix_free/matrix_free.h> | ||
#include <deal.II/matrix_free/operators.h> | ||
#include <deal.II/matrix_free/tools.h> | ||
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#include <deal.II/numerics/vector_tools.h> | ||
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#include "../tests.h" | ||
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template <int dim> | ||
class ExactSolution : public Function<dim> | ||
{ | ||
public: | ||
ExactSolution() | ||
{} | ||
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virtual double | ||
value(const Point<dim> &p, const unsigned int /*component*/ = 0) const | ||
{ | ||
// independent of p[2] since we apply PBC in z-direction | ||
return p[0] + p[1]; | ||
} | ||
}; | ||
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void | ||
generate_grid(Triangulation<3> &triangulation, int orientation) | ||
{ | ||
Point<3> vertices_1[] = {Point<3>(-0., -0., -0.), | ||
Point<3>(+1., -0., -0.), | ||
Point<3>(-0., +1., -0.), | ||
Point<3>(+1., +1., -0.), | ||
Point<3>(-0., -0., +0.5), | ||
Point<3>(+1., -0., +0.5), | ||
Point<3>(-0., +1., +0.5), | ||
Point<3>(+1., +1., +0.5), | ||
Point<3>(-0., -0., +1.), | ||
Point<3>(+1., -0., +1.), | ||
Point<3>(-0., +1., +1.), | ||
Point<3>(+1., +1., +1.)}; | ||
std::vector<Point<3>> vertices(&vertices_1[0], &vertices_1[12]); | ||
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std::vector<CellData<3>> cells(2, CellData<3>()); | ||
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/* cell 0 */ | ||
int cell_vertices_0[GeometryInfo<3>::vertices_per_cell] = { | ||
0, 1, 2, 3, 4, 5, 6, 7}; | ||
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/* cell 1 */ | ||
int cell_vertices_1[8][GeometryInfo<3>::vertices_per_cell] = { | ||
{4, 5, 6, 7, 8, 9, 10, 11}, | ||
{5, 7, 4, 6, 9, 11, 8, 10}, | ||
{7, 6, 5, 4, 11, 10, 9, 8}, | ||
{6, 4, 7, 5, 10, 8, 11, 9}, | ||
{9, 8, 11, 10, 5, 4, 7, 6}, | ||
{8, 10, 9, 11, 4, 6, 5, 7}, | ||
{10, 11, 8, 9, 6, 7, 4, 5}, | ||
{11, 9, 10, 8, 7, 5, 6, 4}}; | ||
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for (const unsigned int j : GeometryInfo<3>::vertex_indices()) | ||
{ | ||
cells[orientation < 8 ? 0 : 1].vertices[j] = cell_vertices_0[j]; | ||
cells[orientation < 8 ? 1 : 0].vertices[j] = | ||
cell_vertices_1[orientation % 8][j]; | ||
} | ||
cells[0].material_id = 0; | ||
cells[1].material_id = 0; | ||
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triangulation.create_triangulation(vertices, cells, SubCellData()); | ||
} | ||
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template <int dim, int fe_degree> | ||
void | ||
test() | ||
{ | ||
if (dim == 2) | ||
return; | ||
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Triangulation<3> tria; | ||
for (unsigned int orientation = 0; orientation < 16; ++orientation) | ||
{ | ||
deallog << "Testing orientation case " << orientation << std::endl; | ||
tria.clear(); | ||
generate_grid(tria, orientation); | ||
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FE_DGQ<3> fe(fe_degree); | ||
DoFHandler<3> dof_handler(tria); | ||
dof_handler.distribute_dofs(fe); | ||
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for (auto &cell : tria) | ||
for (auto &face : cell.face_iterators()) | ||
{ | ||
if (std::abs(face->center()[2] - 0.0) < 10e-6) | ||
face->set_boundary_id(4); | ||
if (std::abs(face->center()[2] - 1.0) < 10e-6) | ||
face->set_boundary_id(5); | ||
} | ||
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std::vector<dealii::GridTools::PeriodicFacePair< | ||
typename dealii::Triangulation<dim>::cell_iterator>> | ||
periodic_faces; | ||
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dealii::GridTools::collect_periodic_faces(tria, 4, 5, 2, periodic_faces); | ||
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tria.add_periodicity(periodic_faces); | ||
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QGauss<1> quadrature(fe_degree + 1); | ||
typename MatrixFree<dim, double>::AdditionalData additional_data; | ||
additional_data.mapping_update_flags = update_values; | ||
additional_data.mapping_update_flags_inner_faces = update_values; | ||
additional_data.mapping_update_flags_boundary_faces = update_values; | ||
additional_data.mapping_update_flags_faces_by_cells = update_values; | ||
additional_data.tasks_parallel_scheme = | ||
MatrixFree<dim, double>::AdditionalData::none; | ||
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MatrixFreeTools::categorize_by_boundary_ids( | ||
dof_handler.get_triangulation(), additional_data); | ||
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MatrixFree<dim, double> data; | ||
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AffineConstraints<double> dummy; | ||
dummy.close(); | ||
data.reinit(dof_handler, dummy, quadrature, additional_data); | ||
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using VectorType = LinearAlgebra::distributed::Vector<double>; | ||
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VectorType vec; | ||
data.initialize_dof_vector(vec); | ||
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VectorTools::interpolate(dof_handler, ExactSolution<dim>(), vec); | ||
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data.template loop_cell_centric<VectorType, VectorType>( | ||
[](const auto &data, auto &, const auto &src, const auto cell_range) { | ||
FEFaceEvaluation<dim, fe_degree, fe_degree + 1, 1, double> eval_minus( | ||
data, true); | ||
FEFaceEvaluation<dim, fe_degree, fe_degree + 1, 1, double> eval_plus( | ||
data, false); | ||
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for (unsigned int cell = cell_range.first; cell < cell_range.second; | ||
++cell) | ||
for (unsigned int face = 0; | ||
face < GeometryInfo<dim>::faces_per_cell; | ||
++face) | ||
{ | ||
const auto boundary_ids = | ||
data.get_faces_by_cells_boundary_id(cell, face); | ||
const auto boundary_id = boundary_ids[0]; | ||
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if (boundary_id != numbers::internal_face_boundary_id) | ||
continue; | ||
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eval_minus.reinit(cell, face); | ||
eval_minus.gather_evaluate(src, true, false); | ||
eval_plus.reinit(cell, face); | ||
eval_plus.gather_evaluate(src, true, false); | ||
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for (unsigned int q = 0; q < eval_minus.n_q_points; ++q) | ||
{ | ||
const auto u_minus = eval_minus.get_value(q); | ||
const auto u_plus = eval_plus.get_value(q); | ||
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for (unsigned int v = 0; | ||
v < VectorizedArray<double>::size(); | ||
++v) | ||
{ | ||
Assert(std::abs(u_minus[v] - u_plus[v]) < 1e-10, | ||
ExcMessage("Entries do not match!")); | ||
} | ||
} | ||
} | ||
}, | ||
vec, | ||
vec); | ||
} | ||
} | ||
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int | ||
main() | ||
{ | ||
initlog(); | ||
test<3, 3>(); | ||
} |
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DEAL::Testing orientation case 0 | ||
DEAL::Testing orientation case 1 | ||
DEAL::Testing orientation case 2 | ||
DEAL::Testing orientation case 3 | ||
DEAL::Testing orientation case 4 | ||
DEAL::Testing orientation case 5 | ||
DEAL::Testing orientation case 6 | ||
DEAL::Testing orientation case 7 | ||
DEAL::Testing orientation case 8 | ||
DEAL::Testing orientation case 9 | ||
DEAL::Testing orientation case 10 | ||
DEAL::Testing orientation case 11 | ||
DEAL::Testing orientation case 12 | ||
DEAL::Testing orientation case 13 | ||
DEAL::Testing orientation case 14 | ||
DEAL::Testing orientation case 15 |