mg_base.cc

Go to the documentation of this file.

// ---------------------------------------------------------------------
//
// Copyright (C) 1999 - 2021 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.
//
// ---------------------------------------------------------------------
 
#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/la_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