Tpetra_Details_extractMpiCommFromTeuchos.hpp

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// @HEADER
// *****************************************************************************
//          Tpetra: Templated Linear Algebra Services Package
//
// Copyright 2008 NTESS and the Tpetra contributors.
// SPDX-License-Identifier: BSD-3-Clause
// *****************************************************************************
// @HEADER

#ifndef TPETRA_DETAILS_EXTRACTMPICOMMFROMTEUCHOS_HPP
#define TPETRA_DETAILS_EXTRACTMPICOMMFROMTEUCHOS_HPP


#include "TpetraCore_config.h"
#ifdef HAVE_TPETRACORE_MPI
#  include <mpi.h> // MPI_Comm
#endif // HAVE_TPETRACORE_MPI

#ifndef DOXYGEN_SHOULD_SKIP_THIS
namespace Teuchos {
  // forward declaration of Comm
  template<class OrdinalType> class Comm;
} // namespace Teuchos
#endif // NOT DOXYGEN_SHOULD_SKIP_THIS

namespace Tpetra {
namespace Details {

#ifdef HAVE_TPETRACORE_MPI
MPI_Comm
extractMpiCommFromTeuchos (const Teuchos::Comm<int>& comm);
#endif // HAVE_TPETRACORE_MPI

bool teuchosCommIsAnMpiComm (const Teuchos::Comm<int>& comm);

} // namespace Details
} // namespace Tpetra

#endif // TPETRA_DETAILS_EXTRACTMPICOMMFROMTEUCHOS_HPP