From: Martin Kronbichler Date: Wed, 22 Jul 2015 08:17:14 +0000 (+0200) Subject: Test case for cell similarity X-Git-Tag: v8.4.0-rc2~736^2 X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F1174%2Fhead;p=dealii.git Test case for cell similarity --- diff --git a/tests/fe/cell_similarity_11.cc b/tests/fe/cell_similarity_11.cc new file mode 100644 index 0000000000..151e69f079 --- /dev/null +++ b/tests/fe/cell_similarity_11.cc @@ -0,0 +1,134 @@ +// --------------------------------------------------------------------- +// +// Copyright (C) 2009 - 2015 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 at +// the top level of the deal.II distribution. +// +// --------------------------------------------------------------------- + + + +// since early 2009, the FEValues objects try to be more efficient by only +// recomputing things like gradients of shape functions if the cell on which +// we are is not a translation of the previous one. in this series of tests we +// make sure that this actually works the way it's supposed to be. As opposed +// to the tests 01-10, this test uses a more complicated geometry that forces +// a MappingQ to switch between a Q1 while passing through the mesh +// +// this tests outputs the Jacobian of the transformation and the derivatives +// in real space in two locations inside the cell. to make sure the cell +// similarity code is used, only run the program with one thread + + +#include "../tests.h" +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + + +template +void test (const Triangulation &tr) +{ + FE_Q fe(2); + deallog << "FE=" << fe.get_name() << std::endl; + + MappingQ mapping(2); + deallog << "Mapping=MappingQ2" << std::endl; + + + DoFHandler dof(tr); + dof.distribute_dofs(fe); + + std::vector > points(2); + for (unsigned int d=0; d quadrature(points); + FEValues fe_values (mapping, fe, quadrature, + update_gradients | update_jacobians); + + for (typename DoFHandler::active_cell_iterator + cell = dof.begin_active(); + cell != dof.end(); ++cell) + { + fe_values.reinit (cell); + + deallog << "Jacobians: "; + for (unsigned int q=0; q tr; + GridGenerator::subdivided_hyper_cube(tr, 3, -1, 1); + + for (Triangulation::cell_iterator cell = tr.begin(); + cell != tr.end(); ++cell) + for (unsigned int f=0; f::faces_per_cell; ++f) + if (cell->face(f)->at_boundary() && + std::abs(cell->face(f)->center()[0]+1.) < 1e-12 && + std::abs(cell->face(f)->center()[1]) < 1e-12) + cell->face(f)->set_boundary_id(1); + + static const HyperBallBoundary boundary(Point(), std::sqrt(1./9.+1.)); + tr.set_boundary (1, boundary); + + test(tr); +} + + +int main() +{ + std::ofstream logfile ("output"); + deallog << std::setprecision (8); + MultithreadInfo::set_thread_limit(1); + + deallog.attach(logfile); + deallog.depth_console (0); + deallog.threshold_double(1.e-10); + + test(); +} diff --git a/tests/fe/cell_similarity_11.output b/tests/fe/cell_similarity_11.output new file mode 100644 index 0000000000..672f6b7d31 --- /dev/null +++ b/tests/fe/cell_similarity_11.output @@ -0,0 +1,21 @@ + +DEAL::FE=FE_Q<2>(2) +DEAL::Mapping=MappingQ2 +DEAL::Jacobians: [ 0.66666667 0 0 0.66666667 ] [ 0.66666667 0 0 0.66666667 ] +DEAL::Derivatives of shape function: [ -1.4040000 3.4560000 ] [ 0.30600000 0.44100000 ] +DEAL::Jacobians: [ 0.66666667 0 0 0.66666667 ] [ 0.66666667 0 0 0.66666667 ] +DEAL::Derivatives of shape function: [ -1.4040000 3.4560000 ] [ 0.30600000 0.44100000 ] +DEAL::Jacobians: [ 0.66666667 0 0 0.66666667 ] [ 0.66666667 0 0 0.66666667 ] +DEAL::Derivatives of shape function: [ -1.4040000 3.4560000 ] [ 0.30600000 0.44100000 ] +DEAL::Jacobians: [ 0.70561331 -0.13631323 0 0.66666667 ] [ 0.67011507 -0.0014199295 0 0.66666667 ] +DEAL::Derivatives of shape function: [ -1.3265056 3.1847696 ] [ 0.30442533 0.44164839 ] +DEAL::Jacobians: [ 0.66666667 0 0 0.66666667 ] [ 0.66666667 0 0 0.66666667 ] +DEAL::Derivatives of shape function: [ -1.4040000 3.4560000 ] [ 0.30600000 0.44100000 ] +DEAL::Jacobians: [ 0.66666667 0 0 0.66666667 ] [ 0.66666667 0 0 0.66666667 ] +DEAL::Derivatives of shape function: [ -1.4040000 3.4560000 ] [ 0.30600000 0.44100000 ] +DEAL::Jacobians: [ 0.66666667 0 0 0.66666667 ] [ 0.66666667 0 0 0.66666667 ] +DEAL::Derivatives of shape function: [ -1.4040000 3.4560000 ] [ 0.30600000 0.44100000 ] +DEAL::Jacobians: [ 0.66666667 0 0 0.66666667 ] [ 0.66666667 0 0 0.66666667 ] +DEAL::Derivatives of shape function: [ -1.4040000 3.4560000 ] [ 0.30600000 0.44100000 ] +DEAL::Jacobians: [ 0.66666667 0 0 0.66666667 ] [ 0.66666667 0 0 0.66666667 ] +DEAL::Derivatives of shape function: [ -1.4040000 3.4560000 ] [ 0.30600000 0.44100000 ]