NcMPI.references.h

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#if !defined(INC_netCDF_NcMPI) && defined(USE_PARALLEL)
#define INC_netCDF_NcMPI

#ifndef USE_PARALLEL
  #error For parallel netCDF, use #define USE_PARALLEL during library compilation.
#endif

#include "mpi.h"
#include "NcException.h"

namespace netcdf {


    class NcMPI
    {
      public:

        MPI::Comm & comm;
        MPI::Info & info;

        NcMPI (
          MPI::Comm & mpiComm,
          MPI::Info & mpiInfo)
          : comm (mpiComm), info (mpiInfo)
          {
            if ( !MPI::Is_initialized() )
                NcEXCEPTION( "MPI has not been initialized." );
          }

        NcMPI ( NcMPI const & rhs )
          : comm (rhs.comm), info (rhs.info)
          {
          }

        MPI::Comm & Comm () { return comm; }
        MPI::Info & Info () { return info; }

        static bool IsInitialized () { return MPI::Is_initialized(); }

      private:

        // not used
        NcMPI operator= ( NcMPI const & rhs );

    };


} // namespace netcdf

#endif // INC_netCDF_NcMPI