source: palm/trunk/SOURCE/palm.f90 @ 667

Last change on this file since 667 was 667, checked in by suehring, 11 years ago

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

  • Property svn:keywords set to Id
File size: 6.2 KB
Line 
1 PROGRAM palm
2
3!------------------------------------------------------------------------------!
4! Current revisions:
5! -----------------
6!
7!
8! Former revisions:
9! -----------------
10! $Id: palm.f90 667 2010-12-23 12:06:00Z suehring $
11!
12! 495 2010-03-02 00:40:15Z raasch
13! Particle data for restart runs are only written if write_binary=.T..
14!
15! 215 2008-11-18 09:54:31Z raasch
16! Initialization of coupled runs modified for MPI-1 and moved to external
17! subroutine init_coupling
18!
19! 197 2008-09-16 15:29:03Z raasch
20! Workaround for getting information about the coupling mode
21!
22! 108 2007-08-24 15:10:38Z letzel
23! Get coupling mode from environment variable, change location of debug output
24!
25! 75 2007-03-22 09:54:05Z raasch
26! __vtk directives removed, write_particles is called only in case of particle
27! advection switched on, open unit 9 for debug output,
28! setting of palm version moved from modules to here
29!
30! RCS Log replace by Id keyword, revision history cleaned up
31!
32! Revision 1.10  2006/08/04 14:53:12  raasch
33! Distibution of run description header removed, call of header moved behind
34! init_3d_model
35!
36! Revision 1.2  2001/01/25 07:15:06  raasch
37! Program name changed to PALM, module test_variables removed.
38! Initialization of dvrp logging as well as exit of dvrp moved to new
39! subroutines init_dvrp_logging and close_dvrp (file init_dvrp.f90)
40!
41! Revision 1.1  1997/07/24 11:23:35  raasch
42! Initial revision
43!
44!
45! Description:
46! ------------
47! Large-Eddy Simulation (LES) model for the convective boundary layer,
48! optimized for use on parallel machines (implementation realized using the
49! Message Passing Interface (MPI)). The model can also be run on vector machines
50! (less well optimized) and workstations. Versions for the different types of
51! machines are controlled via cpp-directives.
52! Model runs are only feasible using the ksh-script mrun.
53!------------------------------------------------------------------------------!
54
55
56    USE arrays_3d
57    USE constants
58    USE control_parameters
59    USE cpulog
60    USE dvrp_variables
61    USE grid_variables
62    USE indices
63    USE interfaces
64    USE model_1d
65    USE particle_attributes
66    USE pegrid
67    USE spectrum
68    USE statistics
69
70    IMPLICIT NONE
71
72!
73!-- Local variables
74    CHARACTER (LEN=9) ::  time_to_string
75    CHARACTER (LEN=1) ::  cdum
76    INTEGER           ::  i, run_description_header_i(80)
77
78    version = 'PALM 3.7a'
79
80#if defined( __parallel )
81!
82!-- MPI initialisation. comm2d is preliminary set, because
83!-- it will be defined in init_pegrid but is used before in cpu_log.
84    CALL MPI_INIT( ierr )
85    CALL MPI_COMM_SIZE( MPI_COMM_WORLD, numprocs, ierr )
86    CALL MPI_COMM_RANK( MPI_COMM_WORLD, myid, ierr )
87    comm_palm = MPI_COMM_WORLD
88    comm2d    = MPI_COMM_WORLD
89
90!
91!-- Initialize PE topology in case of coupled runs
92    CALL init_coupling
93#endif
94
95!
96!-- Initialize measuring of the CPU-time remaining to the run
97    CALL local_tremain_ini
98
99!
100!-- Start of total CPU time measuring.
101    CALL cpu_log( log_point(1), 'total', 'start' )
102    CALL cpu_log( log_point(2), 'initialisation', 'start' )
103
104!
105!-- Open a file for debug output
106    WRITE (myid_char,'(''_'',I4.4)')  myid
107    OPEN( 9, FILE='DEBUG'//TRIM( coupling_char )//myid_char, FORM='FORMATTED' )
108
109!
110!-- Initialize dvrp logging. Also, one PE maybe split from the global
111!-- communicator for doing the dvrp output. In that case, the number of
112!-- PEs available for PALM is reduced by one and communicator comm_palm
113!-- is changed respectively.
114#if defined( __parallel )
115    CALL MPI_COMM_RANK( comm_palm, myid, ierr )
116!
117!-- TEST OUTPUT (TO BE REMOVED)
118    WRITE(9,*) '*** coupling_mode = "', TRIM( coupling_mode ), '"'
119    CALL LOCAL_FLUSH( 9 )
120    IF ( TRIM( coupling_mode ) /= 'uncoupled' )  THEN
121       PRINT*, '*** PE', myid, ' Global target PE:', target_id, &
122               TRIM( coupling_mode )
123    ENDIF
124#endif
125
126    CALL init_dvrp_logging
127
128!
129!-- Read control parameters from NAMELIST files and read environment-variables
130    CALL parin
131
132!
133!-- Determine processor topology and local array indices
134    CALL init_pegrid
135
136!
137!-- Generate grid parameters
138    CALL init_grid
139
140!
141!-- Check control parameters and deduce further quantities
142    CALL check_parameters
143
144
145!
146!-- Initialize all necessary variables
147    CALL init_3d_model
148
149!
150!-- Output of program header
151    IF ( myid == 0 )  CALL header
152
153    CALL cpu_log( log_point(2), 'initialisation', 'stop' )
154
155!
156!-- Set start time in format hh:mm:ss
157    simulated_time_chr = time_to_string( simulated_time )
158
159!
160!-- If required, output of initial arrays
161    IF ( do2d_at_begin )  THEN
162       CALL data_output_2d( 'xy', 0 )
163       CALL data_output_2d( 'xz', 0 )
164       CALL data_output_2d( 'yz', 0 )
165    ENDIF
166    IF ( do3d_at_begin )  THEN
167       CALL data_output_3d( 0 )
168    ENDIF
169
170!
171!-- Integration of the model equations using timestep-scheme
172    CALL time_integration
173
174!
175!-- If required, write binary data for restart runs
176    IF ( write_binary(1:4) == 'true' )  THEN
177!
178!--    Write flow field data
179       CALL write_3d_binary
180!
181!--    If required, write particle data
182       IF ( particle_advection )  CALL write_particles
183    ENDIF
184
185!
186!-- If required, repeat output of header including the required CPU-time
187    IF ( myid == 0 )  CALL header
188!
189!-- If required, final user-defined actions, and
190!-- last actions on the open files and close files. Unit 14 was opened
191!-- in write_3d_binary but it is closed here, to allow writing on this
192!-- unit in routine user_last_actions.
193    CALL cpu_log( log_point(4), 'last actions', 'start' )
194    CALL user_last_actions
195    IF ( write_binary(1:4) == 'true' )  CALL close_file( 14 )
196    CALL close_file( 0 )
197    CALL close_dvrp
198    CALL cpu_log( log_point(4), 'last actions', 'stop' )
199
200#if defined( __mpi2 )
201!
202!-- Test exchange via intercommunicator in case of a MPI-2 coupling
203    IF ( coupling_mode == 'atmosphere_to_ocean' )  THEN
204       i = 12345 + myid
205       CALL MPI_SEND( i, 1, MPI_INTEGER, myid, 11, comm_inter, ierr )
206    ELSEIF ( coupling_mode == 'ocean_to_atmosphere' )  THEN
207       CALL MPI_RECV( i, 1, MPI_INTEGER, myid, 11, comm_inter, status, ierr )
208       PRINT*, '### myid: ', myid, '   received from atmosphere:  i = ', i
209    ENDIF
210#endif
211
212!
213!-- Take final CPU-time for CPU-time analysis
214    CALL cpu_log( log_point(1), 'total', 'stop' )
215    CALL cpu_statistics
216
217#if defined( __parallel )
218    CALL MPI_FINALIZE( ierr )
219#endif
220
221 END PROGRAM palm
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