MPI_Type_size(MPI_UNSIGNED, &i_size);
printf("MPI_Type_size (MPI_UNSIGNED) = %d\n", i_size);
#if defined(HAVE_LONG_DOUBLE)
MPI_Type_extent(MPI_LONG_DOUBLE, &i_extent);
MPI_Type_size(MPI_UNSIGNED, &i_size);
printf("MPI_Type_size (MPI_UNSIGNED) = %d\n", i_size);
#if defined(HAVE_LONG_DOUBLE)
MPI_Type_extent(MPI_LONG_DOUBLE, &i_extent);