trilinos_utilities.h

Go to the documentation of this file.

// ---------------------------------------------------------------------
//
// Copyright (C) 2005 - 2023 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.
//
// ---------------------------------------------------------------------
 
#ifndef dealii_trilinos_utilities_h
#define dealii_trilinos_utilities_h
 
#include <deal.II/base/config.h>
 
#include <deal.II/base/exceptions.h>
 
#ifdef DEAL_II_WITH_TRILINOS
#  include <Epetra_Comm.h>
#  include <Epetra_Map.h>
#  include <Teuchos_Comm.hpp>
#  include <Teuchos_RCP.hpp>
#  ifdef DEAL_II_WITH_MPI
#    include <Epetra_MpiComm.h>
#  else
#    include <Epetra_SerialComm.h>
#  endif
#endif
 
DEAL_II_NAMESPACE_OPEN
 
namespace Utilities
{
#ifdef DEAL_II_WITH_TRILINOS
  namespace Trilinos
  {
    const Epetra_Comm &
    comm_world();
 
    const Epetra_Comm &
    comm_self();
 
    const Teuchos::RCP<const Teuchos::Comm<int>> &
    tpetra_comm_self();
 
    Epetra_Comm *
    duplicate_communicator(const Epetra_Comm &communicator);
 
    void
    destroy_communicator(Epetra_Comm &communicator);
 
    unsigned int
    get_n_mpi_processes(const Epetra_Comm &mpi_communicator);
 
    unsigned int
    get_this_mpi_process(const Epetra_Comm &mpi_communicator);
 
    Epetra_Map
    duplicate_map(const Epetra_BlockMap &map, const Epetra_Comm &comm);
  } // namespace Trilinos
#endif
} // namespace Utilities
 
DEAL_II_NAMESPACE_CLOSE
 
#endif