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Ignore:
Timestamp:
Dec 23, 2010 12:06:00 PM (12 years ago)
Author:
suehring
Message:

summary:

Gryschka:

  • Coupling with different resolution and different numbers of PEs in ocean and atmosphere is available
  • Exchange of u and v from ocean surface to atmosphere surface
  • Mirror boundary condition for u and v at the bottom are replaced by dirichlet boundary conditions
  • Inflow turbulence is now defined by flucuations around spanwise mean
  • Bugfixes for cyclic_fill and constant_volume_flow

Suehring:

  • New advection added ( Wicker and Skamarock 5th order ), therefore:
    • New module advec_ws.f90
    • Modified exchange of ghost boundaries.
    • Modified evaluation of turbulent fluxes
    • New index bounds nxlg, nxrg, nysg, nyng

advec_ws.f90

Advection scheme for scalars and momentum using the flux formulation of
Wicker and Skamarock 5th order.
Additionally the module contains of a routine using for initialisation and
steering of the statical evaluation. The computation of turbulent fluxes takes
place inside the advection routines.
In case of vector architectures Dirichlet and Radiation boundary conditions are
outstanding and not available. Furthermore simulations within topography are
not possible so far. A further routine local_diss_ij is available and is used
if a control of dissipative fluxes is desired.

check_parameters.f90

Exchange of parameters between ocean and atmosphere via PE0
Check for illegal combination of ws-scheme and timestep scheme.
Check for topography and ws-scheme.
Check for not cyclic boundary conditions in combination with ws-scheme and
loop_optimization = 'vector'.
Check for call_psolver_at_all_substeps and ws-scheme for momentum_advec.

Different processor/grid topology in atmosphere and ocean is now allowed!
Bugfixes in checking for conserve_volume_flow_mode.

exchange_horiz.f90

Dynamic exchange of ghost points with nbgp_local to ensure that no useless
ghost points exchanged in case of multigrid. type_yz(0) and type_xz(0) used for
normal grid, the remaining types used for the several grid levels.
Exchange is done via MPI-Vectors with a dynamic value of ghost points which
depend on the advection scheme. Exchange of left and right PEs is 10% faster
with MPI-Vectors than without.

flow_statistics.f90

When advection is computed with ws-scheme, turbulent fluxes are already
computed in the respective advection routines and buffered in arrays
sums_xxxx_ws_l(). This is due to a consistent treatment of statistics
with the numerics and to avoid unphysical kinks near the surface. So some if-
requests has to be done to dicern between fluxes from ws-scheme other advection
schemes. Furthermore the computation of z_i is only done if the heat flux
exceeds a minimum value. This affects only simulations of a neutral boundary
layer and is due to reasons of computations in the advection scheme.

inflow_turbulence.f90

Using nbgp recycling planes for a better resolution of the turbulent flow near
the inflow.

init_grid.f90

Definition of new array bounds nxlg, nxrg, nysg, nyng on each PE.
Furthermore the allocation of arrays and steering of loops is done with these
parameters. Call of exchange_horiz are modified.
In case of dirichlet bounday condition at the bottom zu(0)=0.0
dzu_mg has to be set explicitly for a equally spaced grid near bottom.
ddzu_pres added to use a equally spaced grid near bottom.

init_pegrid.f90

Moved determination of target_id's from init_coupling
Determination of parameters needed for coupling (coupling_topology, ngp_a, ngp_o)
with different grid/processor-topology in ocean and atmosphere

Adaption of ngp_xy, ngp_y to a dynamic number of ghost points.
The maximum_grid_level changed from 1 to 0. 0 is the normal grid, 1 to
maximum_grid_level the grids for multigrid, in which 0 and 1 are normal grids.
This distinction is due to reasons of data exchange and performance for the
normal grid and grids in poismg.
The definition of MPI-Vectors adapted to a dynamic numer of ghost points.
New MPI-Vectors for data exchange between left and right boundaries added.
This is due to reasons of performance (10% faster).

ATTENTION: nnz_x undefined problem still has to be solved!!!!!!!!
TEST OUTPUT (TO BE REMOVED) logging mpi2 ierr values

parin.f90

Steering parameter dissipation_control added in inipar.

Makefile

Module advec_ws added.

Modules

Removed u_nzb_p1_for_vfc and v_nzb_p1_for_vfc

For coupling with different resolution in ocean and atmophere:
+nx_a, +nx_o, ny_a, +ny_o, ngp_a, ngp_o, +total_2d_o, +total_2d_a,
+coupling_topology

Buffer arrays for the left sided advective fluxes added in arrays_3d.
+flux_s_u, +flux_s_v, +flux_s_w, +diss_s_u, +diss_s_v, +diss_s_w,
+flux_s_pt, +diss_s_pt, +flux_s_e, +diss_s_e, +flux_s_q, +diss_s_q,
+flux_s_sa, +diss_s_sa
3d arrays for dissipation control added. (only necessary for vector arch.)
+var_x, +var_y, +var_z, +gamma_x, +gamma_y, +gamma_z
Default of momentum_advec and scalar_advec changed to 'ws-scheme' .
+exchange_mg added in control_parameters to steer the data exchange.
Parameters +nbgp, +nxlg, +nxrg, +nysg, +nyng added in indices.
flag array +boundary_flags added in indices to steer the degradation of order
of the advective fluxes when non-cyclic boundaries are used.
MPI-datatypes +type_y, +type_y_int and +type_yz for data_exchange added in
pegrid.
+sums_wsus_ws_l, +sums_wsvs_ws_l, +sums_us2_ws_l, +sums_vs2_ws_l,
+sums_ws2_ws_l, +sums_wspts_ws_l, +sums_wssas_ws_l, +sums_wsqs_ws_l
and +weight_substep added in statistics to steer the statistical evaluation
of turbulent fluxes in the advection routines.
LOGICALS +ws_scheme_sca and +ws_scheme_mom added to get a better performance
in prognostic_equations.
LOGICAL +dissipation_control control added to steer numerical dissipation
in ws-scheme.

Changed length of string run_description_header

pres.f90

New allocation of tend when ws-scheme and multigrid is used. This is due to
reasons of perforance of the data_exchange. The same is done with p after
poismg is called.
nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng when no
multigrid is used. Calls of exchange_horiz are modified.

bugfix: After pressure correction no volume flow correction in case of
non-cyclic boundary conditions
(has to be done only before pressure correction)

Call of SOR routine is referenced with ddzu_pres.

prognostic_equations.f90

Calls of the advection routines with WS5 added.
Calls of ws_statistics added to set the statistical arrays to zero after each
time step.

advec_particles.f90

Declaration of de_dx, de_dy, de_dz adapted to additional ghost points.
Furthermore the calls of exchange_horiz were modified.

asselin_filter.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng

average_3d_data.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng

boundary_conds.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng
Removed mirror boundary conditions for u and v at the bottom in case of
ibc_uv_b == 0. Instead, dirichelt boundary conditions (u=v=0) are set
in init_3d_model

calc_liquid_water_content.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng

calc_spectra.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng for
allocation of tend.

check_open.f90

Output of total array size was adapted to nbgp.

data_output_2d.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng in loops and
allocation of arrays local_2d and total_2d.
Calls of exchange_horiz are modified.

data_output_2d.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng in loops and
allocation of arrays. Calls of exchange_horiz are modified.
Skip-value skip_do_avs changed to a dynamic adaption of ghost points.

data_output_mask.f90

Calls of exchange_horiz are modified.

diffusion_e.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng

diffusion_s.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng

diffusion_u.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng

diffusion_v.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng

diffusion_w.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng

diffusivities.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng

diffusivities.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng.
Calls of exchange_horiz are modified.

exchange_horiz_2d.f90

Dynamic exchange of ghost points with nbgp, which depends on the advection
scheme. Exchange between left and right PEs is now done with MPI-vectors.

global_min_max.f90

Adapting of the index arrays, because MINLOC assumes lowerbound
at 1 and not at nbgp.

init_3d_model.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng in loops and
allocation of arrays. Calls of exchange_horiz are modified.
Call ws_init to initialize arrays needed for statistical evaluation and
optimization when ws-scheme is used.
Initial volume flow is now calculated by using the variable hom_sum.
Therefore the correction of initial volume flow for non-flat topography
removed (removed u_nzb_p1_for_vfc and v_nzb_p1_for_vfc)
Changed surface boundary conditions for u and v in case of ibc_uv_b == 0 from
mirror bc to dirichlet boundary conditions (u=v=0), so that k=nzb is
representative for the height z0

Bugfix: type conversion of '1' to 64bit for the MAX function (ngp_3d_inner)

init_coupling.f90

determination of target_id's moved to init_pegrid

init_pt_anomaly.f90

Call of exchange_horiz are modified.

init_rankine.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng.
Calls of exchange_horiz are modified.

init_slope.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng.

header.f90

Output of advection scheme.

poismg.f90

Calls of exchange_horiz are modified.

prandtl_fluxes.f90

Changed surface boundary conditions for u and v from mirror bc to dirichelt bc,
therefore u(uzb,:,:) and v(nzb,:,:) is now representative for the height z0
nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng

production_e.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng

read_3d_binary.f90

+/- 1 replaced with +/- nbgp when swapping and allocating variables.

sor.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng.
Call of exchange_horiz are modified.
bug removed in declaration of ddzw(), nz replaced by nzt+1

subsidence.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng.

sum_up_3d_data.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng.

surface_coupler.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng in
MPI_SEND() and MPI_RECV.
additional case for nonequivalent processor and grid topopolgy in ocean and
atmosphere added (coupling_topology = 1)

Added exchange of u and v from Ocean to Atmosphere

time_integration.f90

Calls of exchange_horiz are modified.
Adaption to slooping surface.

timestep.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng.

user_3d_data_averaging.f90, user_data_output_2d.f90, user_data_output_3d.f90,
user_actions.f90, user_init.f90, user_init_plant_canopy.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng.

user_read_restart_data.f90

Allocation with nbgp.

wall_fluxes.f90

nxl-1, nxr+1, nys-1, nyn+1 replaced by nxlg, nxrg, nysg, nyng.

write_compressed.f90

Array bounds and nx, ny adapted with nbgp.

sor.f90

bug removed in declaration of ddzw(), nz replaced by nzt+1

Location:
palm/trunk/SOURCE
Files:
2 edited

Legend:

Unmodified
Added
Removed

  • palm/trunk/SOURCE

    • Property svn:mergeinfo set to (toggle deleted branches)
      /palm/branches/suehring423-666
      /palm/branches/letzel/masked_output/SOURCE296-409

  • palm/trunk/SOURCE/init_pegrid.f90

    r647 r667  
    44! Current revisions:
    55! -----------------
     6!
     7! Moved determination of target_id's from init_coupling
     8!
     9! Determination of parameters needed for coupling (coupling_topology, ngp_a, ngp_o)
     10! with different grid/processor-topology in ocean and atmosphere
     11!
     12!
     13! Adaption of ngp_xy, ngp_y to a dynamic number of ghost points.
     14! The maximum_grid_level changed from 1 to 0. 0 is the normal grid, 1 to
     15! maximum_grid_level the grids for multigrid, in which 0 and 1 are normal grids.
     16! This distinction is due to reasons of data exchange and performance for the
     17! normal grid and grids in poismg.
     18! The definition of MPI-Vectors adapted to a dynamic numer of ghost points.
     19! New MPI-Vectors for data exchange between left and right boundaries added.
     20! This is due to reasons of performance (10% faster).
    621!
    722! ATTENTION: nnz_x undefined problem still has to be solved!!!!!!!!
    … …  
    7994
    8095
     96
    8197    IMPLICIT NONE
    8298
    … …  
    88104
    89105    INTEGER, DIMENSION(:), ALLOCATABLE ::  ind_all, nxlf, nxrf, nynf, nysf
     106
     107    INTEGER, DIMENSION(2) :: pdims_remote
    90108
    91109    LOGICAL ::  found
    … …  
    103121
    104122#if defined( __parallel )
     123
    105124!
    106125!-- Determine the processor topology or check it, if prescribed by the user
    … …  
    624643#endif
    625644
     645!
     646!-- Determine the number of ghost points
     647    IF (scalar_advec == 'ws-scheme' .OR. momentum_advec == 'ws-scheme') THEN
     648       nbgp = 3
     649    ELSE
     650       nbgp = 1
     651    END IF
     652
    626653!
    627654!-- In case of coupled runs, create a new MPI derived datatype for the
    628655!-- exchange of surface (xy) data .
    629656!-- Gridpoint number for the exchange of ghost points (xy-plane)
    630     ngp_xy  = ( nxr - nxl + 3 ) * ( nyn - nys + 3 )
     657
     658    ngp_xy  = ( nxr - nxl + 1 + 2 * nbgp ) * ( nyn - nys + 1 + 2 * nbgp )
    631659
    632660!
    … …  
    635663    CALL MPI_TYPE_VECTOR( ngp_xy, 1, nzt-nzb+2, MPI_REAL, type_xy, ierr )
    636664    CALL MPI_TYPE_COMMIT( type_xy, ierr )
     665
     666
     667    IF ( TRIM( coupling_mode ) .NE. 'uncoupled' ) THEN
     668   
     669!
     670!--    Pass the number of grid points of the atmosphere model to
     671!--    the ocean model and vice versa
     672       IF ( coupling_mode == 'atmosphere_to_ocean' )  THEN
     673
     674          nx_a = nx
     675          ny_a = ny
     676
     677          IF ( myid == 0 ) THEN
     678             CALL MPI_SEND( nx_a, 1, MPI_INTEGER, numprocs, 1, &
     679                            comm_inter, ierr )
     680             CALL MPI_SEND( ny_a, 1, MPI_INTEGER, numprocs, 2, &
     681                            comm_inter, ierr )
     682             CALL MPI_SEND( pdims, 2, MPI_INTEGER, numprocs, 3, &
     683                            comm_inter, ierr )
     684             CALL MPI_RECV( nx_o, 1, MPI_INTEGER, numprocs, 4, &
     685                            comm_inter, status, ierr )
     686             CALL MPI_RECV( ny_o, 1, MPI_INTEGER, numprocs, 5, &
     687                            comm_inter, status, ierr )
     688             CALL MPI_RECV( pdims_remote, 2, MPI_INTEGER, numprocs, 6, &
     689                            comm_inter, status, ierr )
     690          ENDIF
     691
     692          CALL MPI_BCAST( nx_o, 1, MPI_INTEGER, 0, comm2d, ierr)
     693          CALL MPI_BCAST( ny_o, 1, MPI_INTEGER, 0, comm2d, ierr)
     694          CALL MPI_BCAST( pdims_remote, 2, MPI_INTEGER, 0, comm2d, ierr)
     695       
     696       ELSEIF ( coupling_mode == 'ocean_to_atmosphere' )  THEN
     697
     698          nx_o = nx
     699          ny_o = ny
     700
     701          IF ( myid == 0 ) THEN
     702             CALL MPI_RECV( nx_a, 1, MPI_INTEGER, 0, 1, &
     703                            comm_inter, status, ierr )
     704             CALL MPI_RECV( ny_a, 1, MPI_INTEGER, 0, 2, &
     705                            comm_inter, status, ierr )
     706             CALL MPI_RECV( pdims_remote, 2, MPI_INTEGER, 0, 3, &
     707                            comm_inter, status, ierr )
     708             CALL MPI_SEND( nx_o, 1, MPI_INTEGER, 0, 4, &
     709                            comm_inter, ierr )
     710             CALL MPI_SEND( ny_o, 1, MPI_INTEGER, 0, 5, &
     711                            comm_inter, ierr )
     712             CALL MPI_SEND( pdims, 2, MPI_INTEGER, 0, 6, &
     713                            comm_inter, ierr )
     714          ENDIF
     715
     716          CALL MPI_BCAST( nx_a, 1, MPI_INTEGER, 0, comm2d, ierr)
     717          CALL MPI_BCAST( ny_a, 1, MPI_INTEGER, 0, comm2d, ierr)
     718          CALL MPI_BCAST( pdims_remote, 2, MPI_INTEGER, 0, comm2d, ierr)
     719
     720       ENDIF
     721 
     722       ngp_a = (nx_a+1+2*nbgp)*(ny_a+1+2*nbgp)
     723       ngp_o = (nx_o+1+2*nbgp)*(ny_o+1+2*nbgp)
     724
     725!
     726!--    determine if the horizontal grid and the number of PEs
     727!--    in ocean and atmosphere is same or not
     728!--    (different number of PEs still not implemented)
     729       IF ( nx_o == nx_a .AND. ny_o == ny_a .AND.  &
     730            pdims(1) == pdims_remote(1) .AND. pdims(2) == pdims_remote(2) ) &
     731       THEN
     732          coupling_topology = 0
     733       ELSE
     734          coupling_topology = 1
     735       ENDIF
     736
     737!
     738!--    Determine the target PEs for the exchange between ocean and
     739!--    atmosphere (comm2d)
     740       IF ( coupling_topology == 0) THEN
     741          IF ( TRIM( coupling_mode ) .EQ. 'atmosphere_to_ocean' ) THEN
     742             target_id = myid + numprocs
     743          ELSE
     744             target_id = myid
     745          ENDIF
     746
     747       ELSE
     748
     749!
     750!--       In case of nonequivalent topology in ocean and atmosphere only for
     751!--       PE0 in ocean and PE0 in atmosphere a target_id is needed, since
     752!--       data echxchange between ocean and atmosphere will be done only by
     753!--       those PEs.   
     754          IF ( myid == 0 ) THEN
     755             IF ( TRIM( coupling_mode ) .EQ. 'atmosphere_to_ocean' ) THEN
     756                target_id = numprocs
     757             ELSE
     758                target_id = 0
     759             ENDIF
     760 print*, coupling_mode, myid, " -> ", target_id, "numprocs: ", numprocs
     761          ENDIF
     762       ENDIF
     763
     764    ENDIF
     765
     766
    637767#endif
    638768
    … …  
    854984    ELSE
    855985
    856        maximum_grid_level = 1
     986       maximum_grid_level = 0
    857987
    858988    ENDIF
    … …  
    863993!
    864994!-- Gridpoint number for the exchange of ghost points (y-line for 2D-arrays)
    865     ngp_y  = nyn - nys + 1
     995    ngp_y  = nyn - nys + 1 + 2 * nbgp
    866996
    867997!
    868998!-- Define a new MPI derived datatype for the exchange of ghost points in
    869999!-- y-direction for 2D-arrays (line)
    870     CALL MPI_TYPE_VECTOR( nxr-nxl+3, 1, ngp_y+2, MPI_REAL, type_x, ierr )
     1000    CALL MPI_TYPE_VECTOR( nxr-nxl+1+2*nbgp, nbgp, ngp_y, MPI_REAL, type_x, ierr )
    8711001    CALL MPI_TYPE_COMMIT( type_x, ierr )
    872     CALL MPI_TYPE_VECTOR( nxr-nxl+3, 1, ngp_y+2, MPI_INTEGER, type_x_int, ierr )
     1002    CALL MPI_TYPE_VECTOR( nxr-nxl+1+2*nbgp, nbgp, ngp_y, MPI_INTEGER, type_x_int, ierr )
    8731003    CALL MPI_TYPE_COMMIT( type_x_int, ierr )
     1004
     1005    CALL MPI_TYPE_VECTOR( nbgp, ngp_y, ngp_y, MPI_REAL, type_y, ierr )
     1006    CALL MPI_TYPE_COMMIT( type_y, ierr )
     1007    CALL MPI_TYPE_VECTOR( nbgp, ngp_y, ngp_y, MPI_INTEGER, type_y_int, ierr )
     1008    CALL MPI_TYPE_COMMIT( type_y_int, ierr )
     1009
    8741010
    8751011!
    … …  
    8791015!-- Do these calculations for the model grid and (if necessary) also
    8801016!-- for the coarser grid levels used in the multigrid method
    881     ALLOCATE ( ngp_yz(maximum_grid_level), type_xz(maximum_grid_level) )
     1017    ALLOCATE ( ngp_yz(0:maximum_grid_level), type_xz(0:maximum_grid_level),&
     1018               type_yz(0:maximum_grid_level) )
    8821019
    8831020    nxl_l = nxl; nxr_l = nxr; nys_l = nys; nyn_l = nyn; nzb_l = nzb; nzt_l = nzt
    884          
    885     DO i = maximum_grid_level, 1 , -1
    886        ngp_yz(i) = (nzt_l - nzb_l + 2) * (nyn_l - nys_l + 3)
    887 
    888        CALL MPI_TYPE_VECTOR( nxr_l-nxl_l+3, nzt_l-nzb_l+2, ngp_yz(i), &
     1021!
     1022!-- Discern between the model grid, which needs nbgp ghost points and
     1023!-- grid levels for the multigrid scheme. In the latter case only one
     1024!-- ghost point is necessary.
     1025!-- First definition of mpi-vectors for exchange of ghost layers on normal
     1026!-- grid. The following loop is needed for data exchange in poismg.f90.
     1027!
     1028!-- Determine number of grid points of yz-layer for exchange
     1029    ngp_yz(0) = (nzt - nzb + 2) * (nyn - nys + 1 + 2 * nbgp)
     1030!
     1031!-- Define a new mpi datatype for the exchange of left - right boundaries.
     1032!-- Indeed the data are connected in the physical memory and no mpi-vector
     1033!-- is necessary, but the data exchange between left and right PE's using
     1034!-- mpi-vectors is 10% faster than without.
     1035    CALL MPI_TYPE_VECTOR( nxr-nxl+1+2*nbgp, nbgp*(nzt-nzb+2), ngp_yz(0), &
     1036                             MPI_REAL, type_xz(0), ierr )
     1037    CALL MPI_TYPE_COMMIT( type_xz(0), ierr )
     1038
     1039    CALL MPI_TYPE_VECTOR( nbgp, ngp_yz(0), ngp_yz(0), MPI_REAL, type_yz(0), ierr)
     1040    CALL MPI_TYPE_COMMIT( type_yz(0), ierr )
     1041!
     1042!-- Definition of mpi-vectors for multigrid
     1043    IF ( psolver == 'multigrid' )  THEN
     1044!   
     1045!--   The definition of mpi-vectors as aforementioned, but only 1 ghost point is used.
     1046       DO i = maximum_grid_level, 1 , -1
     1047          ngp_yz(i) = (nzt_l - nzb_l + 2) * (nyn_l - nys_l + 3)
     1048
     1049          CALL MPI_TYPE_VECTOR( nxr_l-nxl_l+3, nzt_l-nzb_l+2, ngp_yz(i), &
    8891050                             MPI_REAL, type_xz(i), ierr )
    890        CALL MPI_TYPE_COMMIT( type_xz(i), ierr )
    891 
    892        nxl_l = nxl_l / 2
    893        nxr_l = nxr_l / 2
    894        nys_l = nys_l / 2
    895        nyn_l = nyn_l / 2
    896        nzt_l = nzt_l / 2
    897     ENDDO
     1051          CALL MPI_TYPE_COMMIT( type_xz(i), ierr )
     1052
     1053          CALL MPI_TYPE_VECTOR( 1, ngp_yz(i), ngp_yz(i), MPI_REAL, type_yz(i), ierr)
     1054          CALL MPI_TYPE_COMMIT( type_yz(i), ierr )
     1055
     1056          nxl_l = nxl_l / 2
     1057          nxr_l = nxr_l / 2
     1058          nys_l = nys_l / 2
     1059          nyn_l = nyn_l / 2
     1060          nzt_l = nzt_l / 2
     1061       ENDDO
     1062    END IF
    8981063#endif
    8991064
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