Veselin Dobrev
634d9431d8
ZienkiewiczZhuEstimator. This support is based on the update in ParGridFunction::ComputeFlux which, in turn, is based on the support for GroupCommunicators in ParFiniteElementSpaces on non-conforming meshes.
53 lines
1.7 KiB
C++
53 lines
1.7 KiB
C++
// Copyright (c) 2010, Lawrence Livermore National Security, LLC. Produced at
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// the Lawrence Livermore National Laboratory. LLNL-CODE-443211. All Rights
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// reserved. See file COPYRIGHT for details.
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//
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// This file is part of the MFEM library. For more information and source code
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// availability see http://mfem.org.
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//
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// MFEM is free software; you can redistribute it and/or modify it under the
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// terms of the GNU Lesser General Public License (as published by the Free
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// Software Foundation) version 2.1 dated February 1999.
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#include "estimators.hpp"
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namespace mfem
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{
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void ZienkiewiczZhuEstimator::ComputeEstimates()
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{
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flux_space->Update(false);
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// In parallel, 'flux' can be a GridFunction, as long as 'flux_space' is a
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// ParFiniteElementSpace and 'solution' is a ParGridFunction.
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GridFunction flux(flux_space);
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if (!anisotropic) { aniso_flags.SetSize(0); }
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total_error = ZZErrorEstimator(*integ, *solution, flux, error_estimates,
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anisotropic ? &aniso_flags : NULL,
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flux_averaging);
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current_sequence = solution->FESpace()->GetMesh()->GetSequence();
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}
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#ifdef MFEM_USE_MPI
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void L2ZienkiewiczZhuEstimator::ComputeEstimates()
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{
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flux_space->Update(false);
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smooth_flux_space->Update(false);
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// TODO: move these parameters in the class, and add Set* methods.
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const double solver_tol = 1e-12;
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const int solver_max_it = 200;
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total_error = L2ZZErrorEstimator(*integ, *solution, *smooth_flux_space,
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*flux_space, error_estimates,
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local_norm_p, solver_tol, solver_max_it);
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current_sequence = solution->FESpace()->GetMesh()->GetSequence();
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}
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#endif // MFEM_USE_MPI
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} // namespace mfem
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