communication_pattern_base.h

Go to the documentation of this file.

// ------------------------------------------------------------------------
//
// SPDX-License-Identifier: LGPL-2.1-or-later
// Copyright (C) 2021 - 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.
//
// ------------------------------------------------------------------------
 
#ifndef dealii_base_communication_pattern_base_h
#define dealii_base_communication_pattern_base_h
 
#include <deal.II/base/config.h>
 
#include <deal.II/base/mpi_stub.h>
 
DEAL_II_NAMESPACE_OPEN
 
// Forward declaration
#ifndef DOXYGEN
class IndexSet;
#endif
 
namespace Utilities
{
  namespace MPI
  {
    class CommunicationPatternBase
    {
    public:
      virtual ~CommunicationPatternBase() = default;
 
      virtual void
      reinit(const IndexSet &locally_owned_indices,
             const IndexSet &ghost_indices,
             const MPI_Comm  communicator) = 0;
 
      virtual MPI_Comm
      get_mpi_communicator() const = 0;
    };
 
  } // namespace MPI
 
} // namespace Utilities
 
DEAL_II_NAMESPACE_CLOSE
 
#endif