Tpetra_Core.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_CORE_HPP
#define TPETRA_CORE_HPP


#include <Tpetra_ConfigDefs.hpp>
#include <Teuchos_Comm.hpp>
#ifdef HAVE_TPETRACORE_MPI
#include "mpi.h"
#endif  // HAVE_TPETRACORE_MPI

namespace Tpetra {

Teuchos::RCP<const Teuchos::Comm<int> > getDefaultComm();

bool isInitialized();

void initialize(int* argc, char*** argv);

#ifdef HAVE_TPETRA_MPI
void initialize(int* argc, char*** argv, MPI_Comm comm);
#endif  // HAVE_TPETRA_MPI

void initialize(int* argc, char*** argv,
                const Teuchos::RCP<const Teuchos::Comm<int> >& comm);

void finalize();

class ScopeGuard {
 public:
  ScopeGuard(int* argc, char*** argv);

#ifdef HAVE_TPETRA_MPI
  ScopeGuard(int* argc, char*** argv, MPI_Comm comm);
#endif  // HAVE_TPETRA_MPI

  ScopeGuard() = delete;

  ~ScopeGuard();
};

}  // namespace Tpetra

#endif  // TPETRA_CORE_HPP