Add Info::get_mpi_vendor() function

#endif

}

string Info::get_mpi_vendor() {

  #if defined(MPI_STUBS)

  return "MPI STUBS";

  #elif defined(OPEN_MPI)

  return "Open MPI";

  #elif define(MPICH_NAME)

  return "MPICH";

  #elif define(I_MPI_VERSION)

  return "Intel MPI";

  #elif define(PLATFORM_MPI)

  return "Platform MPI";

  #elif define(HP_MPI)

  return "HP MPI";

  #elif define(MSMPI_VER)

  return "Microsoft MPI";

  #else

  return "Unknown";

  #endif

}

string Info::get_mpi_info(int &major, int &minor)

{

  int len;

  static std::string get_os_info();

  static std::string get_compiler_info();

  static std::string get_openmp_info();

  static std::string get_mpi_vendor();

  static std::string get_mpi_info(int &, int &);

  static std::string get_cxx_info();