communication_pattern_base.h

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// -----------------------------------------------------------------------------
//
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception OR LGPL-2.1-or-later
// Copyright (C) 2021 - 2023 by the deal.II authors
//
// This file is part of the deal.II library.
//
// Detailed license information governing the source code and contributions
// can be found in LICENSE.md and CONTRIBUTING.md at the top level directory.
//
// -----------------------------------------------------------------------------
 
#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