Epetra_TsqrMessenger.hpp

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#ifndef EPETRA_TSQRMESSENGER_HPP
#define EPETRA_TSQRMESSENGER_HPP

#include <Tpetra_ConfigDefs.hpp>

#if defined(HAVE_TPETRA_EPETRA) && defined(HAVE_TPETRA_TSQR)

// Include Epetra's MPI wrappers.
#include <Epetra_Comm.h>

// Include Teuchos' MPI wrappers.
#include <Teuchos_Comm.hpp>

#include <Teuchos_RCP.hpp>
#include <Tsqr_TeuchosMessenger.hpp>


namespace TSQR {
  namespace Epetra {

    Teuchos::RCP<const Teuchos::Comm<int> >
    extractTeuchosComm (const Teuchos::RCP<const Epetra_Comm>& epetraComm);

    template<class Datum>
    Teuchos::RCP<TSQR::MessengerBase<Datum> >
    makeTsqrMessenger (const Teuchos::RCP<const Epetra_Comm>& pComm)
    {
      typedef TSQR::MessengerBase<Datum> base_mess_type;
      typedef TSQR::TeuchosMessenger<Datum> mess_type;

      Teuchos::RCP<mess_type> pMess =
        Teuchos::rcp (new mess_type (extractTeuchosComm (pComm)));
      return Teuchos::rcp_implicit_cast<base_mess_type> (pMess);
    }
  } // namespace Epetra
} // namespace TSQR

#endif // defined(HAVE_TPETRA_EPETRA) && defined(HAVE_TPETRA_TSQR)

#endif // EPETRA_TSQRMESSENGER_HPP