mg_base.cc

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// ------------------------------------------------------------------------
//
// SPDX-License-Identifier: LGPL-2.1-or-later
// Copyright (C) 1999 - 2023 by the deal.II authors
//
// This file is part of the deal.II library.
//
// Part of the source code is dual licensed under Apache-2.0 WITH
// LLVM-exception OR LGPL-2.1-or-later. Detailed license information
// governing the source code and code contributions can be found in
// LICENSE.md and CONTRIBUTING.md at the top level directory of deal.II.
//
// ------------------------------------------------------------------------
 
#include <deal.II/lac/block_vector.h>
#include <deal.II/lac/la_parallel_block_vector.h>
#include <deal.II/lac/la_parallel_vector.h>
#include <deal.II/lac/petsc_block_vector.h>
#include <deal.II/lac/trilinos_epetra_vector.h>
#include <deal.II/lac/trilinos_parallel_block_vector.h>
#include <deal.II/lac/trilinos_tpetra_vector.h>
#include <deal.II/lac/trilinos_vector.h>
#include <deal.II/lac/vector.h>
 
#include <deal.II/multigrid/mg_base.h>
 
 
DEAL_II_NAMESPACE_OPEN
 
 
template <typename VectorType>
void
MGSmootherBase<VectorType>::apply(const unsigned int level,
                                  VectorType        &u,
                                  const VectorType  &rhs) const
{
  u = typename VectorType::value_type(0.);
  smooth(level, u, rhs);
}
 
 
 
template <typename VectorType>
void
MGTransferBase<VectorType>::prolongate_and_add(const unsigned int to_level,
                                               VectorType        &dst,
                                               const VectorType  &src) const
{
  VectorType temp;
  temp.reinit(dst, true);
 
  this->prolongate(to_level, temp, src);
 
  dst += temp;
}
 
 
// Explicit instantiations
 
#include "mg_base.inst"
 
DEAL_II_NAMESPACE_CLOSE