From: wolf Date: Mon, 29 Mar 2004 21:42:10 +0000 (+0000) Subject: New test. X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1ead74dd46f015e71b602f9c2d46a89400dcb4ca;p=dealii-svn.git New test. git-svn-id: https://svn.dealii.org/trunk@8904 0785d39b-7218-0410-832d-ea1e28bc413d --- diff --git a/tests/bits/dof_constraints_07.cc b/tests/bits/dof_constraints_07.cc new file mode 100644 index 0000000000..b4e4485130 --- /dev/null +++ b/tests/bits/dof_constraints_07.cc @@ -0,0 +1,127 @@ +//---------------------------- dof_constraints_07.cc --------------------------- +// $Id$ +// Version: $Name$ +// +// Copyright (C) 2004 by the deal.II authors +// +// This file is subject to QPL and may not be distributed +// without copyright and license information. Please refer +// to the file deal.II/doc/license.html for the text and +// further information on this license. +// +//---------------------------- dof_constraints_07.cc --------------------------- + + +// simply check what happens when calling DoFConstraints::set_zero on +// block vectors. This test was written when I changed a few things in the algorithm + +#include "../tests.h" +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + + +template +void test () +{ + deallog << dim << "D" << std::endl; + + Triangulation triangulation; + GridGenerator::hyper_cube (triangulation); + + // refine once, then refine first cell to + // create hanging nodes + triangulation.refine_global (1); + triangulation.begin_active()->set_refine_flag (); + triangulation.execute_coarsening_and_refinement (); + deallog << "Number of cells: " << triangulation.n_active_cells() << std::endl; + + // set up a DoFHandler and compute hanging + // node constraints for a Q2 element + FE_Q fe(2); + DoFHandler dof_handler (triangulation); + dof_handler.distribute_dofs (fe); + deallog << "Number of dofs: " << dof_handler.n_dofs() << std::endl; + + ConstraintMatrix constraints; + DoFTools::make_hanging_node_constraints (dof_handler, constraints); + constraints.close (); + deallog << "Number of constraints: " << constraints.n_constraints() << std::endl; + + std::vector block_sizes(2); + block_sizes[0] = dof_handler.n_dofs()/2; + block_sizes[1] = dof_handler.n_dofs() - block_sizes[0]; + BlockVector b(block_sizes); + for (unsigned int i=0; i::const_iterator i=b.begin(); i!=b.end(); ++i) + deallog << *i << std::endl; + + // now also make sure that the elements in + // constrained rows are zero, and that all + // the other elements are unchanged + for (unsigned int i=0; i (); + test<2> (); + test<3> (); + } + catch (std::exception &exc) + { + std::cerr << std::endl << std::endl + << "----------------------------------------------------" + << std::endl; + std::cerr << "Exception on processing: " << std::endl + << exc.what() << std::endl + << "Aborting!" << std::endl + << "----------------------------------------------------" + << std::endl; + + return 1; + } + catch (...) + { + std::cerr << std::endl << std::endl + << "----------------------------------------------------" + << std::endl; + std::cerr << "Unknown exception!" << std::endl + << "Aborting!" << std::endl + << "----------------------------------------------------" + << std::endl; + return 1; + }; +}