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source: palm/trunk/SOURCE/init_masks.f90 @ 4562

Last change on this file since 4562 was 4521, checked in by schwenkel, 5 years ago
add error number
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File size: 32.6 KB

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1	!> @file init_masks.f90
2	!------------------------------------------------------------------------------!
3	! This file is part of the PALM model system.
4	!
5	! PALM is free software: you can redistribute it and/or modify it under the
6	! terms of the GNU General Public License as published by the Free Software
7	! Foundation, either version 3 of the License, or (at your option) any later
8	! version.
9	!
10	! PALM is distributed in the hope that it will be useful, but WITHOUT ANY
11	! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
12	! A PARTICULAR PURPOSE. See the GNU General Public License for more details.
13	!
14	! You should have received a copy of the GNU General Public License along with
15	! PALM. If not, see <http://www.gnu.org/licenses/>.
16	!
17	! Copyright 1997-2020 Leibniz Universitaet Hannover
18	!------------------------------------------------------------------------------!
19	!
20	! Current revisions:
21	! -----------------
22	!
23	!
24	! Former revisions:
25	! -----------------
26	! $Id: init_masks.f90 4521 2020-05-06 11:39:49Z raasch $
27	! Rename variable
28	!
29	! 4502 2020-04-17 16:14:16Z schwenkel
30	! Implementation of ice microphysics
31	!
32	! 4444 2020-03-05 15:59:50Z raasch
33	! bugfix: cpp-directives for serial mode added
34	!
35	! 4360 2020-01-07 11:25:50Z suehring
36	! Corrected "Former revisions" section
37	!
38	! 4069 2019-07-01 14:05:51Z Giersch
39	! Masked output running index mid has been introduced as a local variable to
40	! avoid runtime error (Loop variable has been modified) in time_integration
41	!
42	! 3766 2019-02-26 16:23:41Z raasch
43	! unused variables removed
44	!
45	! 3687 2019-01-22 10:42:06Z knoop
46	! unused variables removed
47	!
48	! 3655 2019-01-07 16:51:22Z knoop
49	! Move the control parameter "salsa" from salsa_mod to control_parameters
50	! (M. Kurppa)
51	!
52	! 410 2009-12-04 17:05:40Z letzel
53	! Initial revision
54	!
55	!
56	! Description:
57	! ------------
58	!> Initialize masked data output
59	!------------------------------------------------------------------------------!
60	SUBROUTINE init_masks
61
62	USE arrays_3d, &
63	ONLY: zu, zw
64
65	USE bulk_cloud_model_mod, &
66	ONLY: bulk_cloud_model, microphysics_morrison, microphysics_seifert, &
67	microphysics_ice_phase
68
69	USE control_parameters, &
70	ONLY: constant_diffusion, cloud_droplets, &
71	data_output_masks, data_output_masks_user, &
72	doav, doav_n, domask, domask_no, dz, dz_stretch_level_start, &
73	humidity, mask, masks, mask_scale, mask_i, &
74	mask_i_global, mask_j, mask_j_global, mask_k, mask_k_global, &
75	mask_k_over_surface, &
76	mask_loop, mask_size, mask_size_l, mask_start_l, &
77	mask_surface, mask_x, &
78	mask_x_loop, mask_xyz_dimension, mask_y, mask_y_loop, mask_z, &
79	mask_z_loop, max_masks, message_string, &
80	passive_scalar, ocean_mode, varnamelength
81
82	USE grid_variables, &
83	ONLY: dx, dy
84
85	USE indices, &
86	ONLY: nx, nxl, nxr, ny, nyn, nys, nz, nzb, nzt
87
88	USE kinds
89
90	USE module_interface, &
91	ONLY: module_interface_init_masks
92
93	USE netcdf_interface, &
94	ONLY: domask_unit, netcdf_data_format
95
96	USE particle_attributes, &
97	ONLY: particle_advection
98
99	USE pegrid
100
101	IMPLICIT NONE
102
103	CHARACTER (LEN=varnamelength) :: var !< contains variable name
104	CHARACTER (LEN=7) :: unit !< contains unit of variable
105
106	CHARACTER (LEN=varnamelength), DIMENSION(max_masks,100) :: do_mask !< list of output variables
107	CHARACTER (LEN=varnamelength), DIMENSION(max_masks,100) :: do_mask_user !< list of user-specified output variables
108
109	INTEGER(iwp) :: count !< counting masking indices along a dimension
110	INTEGER(iwp) :: i !< loop index
111	INTEGER(iwp) :: ilen !< length of string saved in 'do_mask'
112	INTEGER(iwp) :: ind_array(1) !< array index
113	INTEGER(iwp) :: j !< loop index
114	INTEGER(iwp) :: k !< loop index
115	INTEGER(iwp) :: m !< mask index
116	INTEGER(iwp) :: mid !< masked output running index
117	#if defined( __parallel )
118	INTEGER(iwp) :: ind(6) !< index limits (lower/upper bounds) of output array
119	INTEGER(iwp) :: n !< loop index
120	INTEGER(iwp) :: sender !< PE id of sending PE
121	#endif
122
123	INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: tmp_array !< temporary 1D array
124
125	LOGICAL :: found !< true if variable is found
126
127	!
128	!-- Initial values are explicitly set here due to a bug in the Cray compiler
129	!-- in case of assignments of initial values in declaration statements for
130	!-- arrays with more than 9999 elements (appears with -eD only)
131	domask = ' '
132
133	!
134	!-- Allocation and initialization
135	ALLOCATE( tmp_array( MAX(nx,ny,nz)+2 ) )
136
137	ALLOCATE( mask_i(max_masks,nxr-nxl+2), &
138	mask_j(max_masks,nyn-nys+2), &
139	mask_k(max_masks,nzt-nzb+2) )
140	!
141	!-- internal mask arrays ("mask,dimension,selection")
142	ALLOCATE( mask(max_masks,3,mask_xyz_dimension), &
143	mask_loop(max_masks,3,3) )
144
145	!
146	!-- Parallel mask output not yet supported. In check_parameters data format
147	!-- is restricted and is switched back to non-parallel output. Therefore the
148	!-- following error can not occur at the moment.
149	IF ( netcdf_data_format > 4 ) THEN
150	message_string = 'netCDF file formats '// &
151	'5 and 6 (with parallel I/O support)'// &
152	' are currently not supported.'
153	CALL message( 'init_masks', 'PA0328', 1, 2, 0, 6, 0 )
154	ENDIF
155
156	!
157	!-- Store data output parameters for masked data output in few shared arrays
158	DO mid = 1, masks
159
160	do_mask (mid,:) = data_output_masks(mid,:)
161	do_mask_user(mid,:) = data_output_masks_user(mid,:)
162	mask (mid,1,:) = mask_x(mid,:)
163	mask (mid,2,:) = mask_y(mid,:)
164	mask (mid,3,:) = mask_z(mid,:)
165	!
166	!-- Flag a mask as terrain following
167	IF ( mask_k_over_surface(mid,1) /= -1_iwp ) THEN
168	mask_surface(mid) = .TRUE.
169	ENDIF
170
171	IF ( mask_x_loop(mid,1) == -1.0_wp .AND. mask_x_loop(mid,2) == -1.0_wp&
172	.AND. mask_x_loop(mid,3) == -1.0_wp ) THEN
173	mask_loop(mid,1,1:2) = -1.0_wp
174	mask_loop(mid,1,3) = 0.0_wp
175	ELSE
176	mask_loop(mid,1,:) = mask_x_loop(mid,:)
177	ENDIF
178	IF ( mask_y_loop(mid,1) == -1.0_wp .AND. mask_y_loop(mid,2) == -1.0_wp&
179	.AND. mask_y_loop(mid,3) == -1.0_wp ) THEN
180	mask_loop(mid,2,1:2) = -1.0_wp
181	mask_loop(mid,2,3) = 0.0_wp
182	ELSE
183	mask_loop(mid,2,:) = mask_y_loop(mid,:)
184	ENDIF
185	IF ( mask_z_loop(mid,1) == -1.0_wp .AND. mask_z_loop(mid,2) == -1.0_wp&
186	.AND. mask_z_loop(mid,3) == -1.0_wp ) THEN
187	mask_loop(mid,3,1:2) = -1.0_wp
188	mask_loop(mid,3,3) = 0.0_wp
189	ELSE
190	mask_loop(mid,3,:) = mask_z_loop(mid,:)
191	ENDIF
192
193	ENDDO
194
195	mask_i = -1; mask_j = -1; mask_k = -1
196
197	!
198	!-- Global arrays are required by define_netcdf_header.
199	IF ( myid == 0 .OR. netcdf_data_format > 4 ) THEN
200	ALLOCATE( mask_i_global(max_masks,nx+2), &
201	mask_j_global(max_masks,ny+2), &
202	mask_k_global(max_masks,nz+2) )
203	mask_i_global = -1; mask_j_global = -1; mask_k_global = -1
204	ENDIF
205
206	!
207	!-- Determine variable names for each mask
208	DO mid = 1, masks
209	!
210	!-- Append user-defined data output variables to the standard data output
211	IF ( do_mask_user(mid,1) /= ' ' ) THEN
212	i = 1
213	DO WHILE ( do_mask(mid,i) /= ' ' .AND. i <= 100 )
214	i = i + 1
215	ENDDO
216	j = 1
217	DO WHILE ( do_mask_user(mid,j) /= ' ' .AND. j <= 100 )
218	IF ( i > 100 ) THEN
219	WRITE ( message_string, * ) 'number of output quantitities ', &
220	'given by data_output_mask and data_output_mask_user ', &
221	'exceeds the limit of 100'
222	CALL message( 'init_masks', 'PA0329', 1, 2, 0, 6, 0 )
223	ENDIF
224	do_mask(mid,i) = do_mask_user(mid,j)
225	i = i + 1
226	j = j + 1
227	ENDDO
228	ENDIF
229
230	!
231	!-- Check and set steering parameters for mask data output and averaging
232	i = 1
233	DO WHILE ( do_mask(mid,i) /= ' ' .AND. i <= 100 )
234	!
235	!-- Check for data averaging
236	ilen = LEN_TRIM( do_mask(mid,i) )
237	j = 0 ! no data averaging
238	IF ( ilen > 3 ) THEN
239	IF ( do_mask(mid,i)(ilen-2:ilen) == '_av' ) THEN
240	j = 1 ! data averaging
241	do_mask(mid,i) = do_mask(mid,i)(1:ilen-3)
242	ENDIF
243	ENDIF
244	var = TRIM( do_mask(mid,i) )
245	!
246	!-- Check for allowed value and set units
247	SELECT CASE ( TRIM( var ) )
248
249	CASE ( 'e' )
250	IF ( constant_diffusion ) THEN
251	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
252	'" requires constant_diffusion = .FALSE.'
253	CALL message( 'init_masks', 'PA0103', 1, 2, 0, 6, 0 )
254	ENDIF
255	unit = 'm2/s2'
256
257	CASE ( 'thetal' )
258	IF ( .NOT. bulk_cloud_model ) THEN
259	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
260	'" requires bulk_cloud_model = .TRUE.'
261	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
262	ENDIF
263	unit = 'K'
264
265	CASE ( 'nc' )
266	IF ( .NOT. bulk_cloud_model ) THEN
267	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
268	'" requires bulk_cloud_model = .TRUE.'
269	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
270	ELSEIF ( .NOT. microphysics_morrison ) THEN
271	message_string = 'output of "' // TRIM( var ) // '" ' // &
272	'requires = morrison'
273	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
274	ENDIF
275	unit = '1/m3'
276
277	CASE ( 'ni' )
278	IF ( .NOT. bulk_cloud_model ) THEN
279	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
280	'" requires bulk_cloud_model = .TRUE.'
281	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
282	ELSEIF ( .NOT. microphysics_ice_phase ) THEN
283	message_string = 'output of "' // TRIM( var ) // '" ' // &
284	'requires microphysics_ice_phase = .TRUE.'
285	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
286	ENDIF
287	unit = '1/m3'
288
289	CASE ( 'nr' )
290	IF ( .NOT. bulk_cloud_model ) THEN
291	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
292	'" requires bulk_cloud_model = .TRUE.'
293	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
294	ELSEIF ( .NOT. microphysics_seifert ) THEN
295	message_string = 'output of "' // TRIM( var ) // '"' // &
296	'requires cloud_scheme = seifert_beheng'
297	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
298	ENDIF
299	unit = '1/m3'
300
301	CASE ( 'pc', 'pr' )
302	IF ( .NOT. particle_advection ) THEN
303	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
304	'" requires a "particles_par"-NAMELIST in the ', &
305	'parameter file (PARIN)'
306	CALL message( 'init_masks', 'PA0104', 1, 2, 0, 6, 0 )
307	ENDIF
308	IF ( TRIM( var ) == 'pc' ) unit = 'number'
309	IF ( TRIM( var ) == 'pr' ) unit = 'm'
310
311	CASE ( 'q', 'thetav' )
312	IF ( .NOT. humidity ) THEN
313	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
314	'" requires humidity = .TRUE.'
315	CALL message( 'init_masks', 'PA0105', 1, 2, 0, 6, 0 )
316	ENDIF
317	IF ( TRIM( var ) == 'q' ) unit = 'kg/kg'
318	IF ( TRIM( var ) == 'thetav' ) unit = 'K'
319
320	CASE ( 'qc' )
321	IF ( .NOT. bulk_cloud_model ) THEN
322	message_string = 'output of "' // TRIM( var ) // '"' // &
323	'requires bulk_cloud_model = .TRUE.'
324	CALL message( 'check_parameters', 'PA0108', 1, 2, 0, 6, 0 )
325	ENDIF
326	unit = 'kg/kg'
327
328	CASE ( 'ql' )
329	IF ( .NOT. ( bulk_cloud_model .OR. cloud_droplets ) ) THEN
330	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
331	'" requires bulk_cloud_model = .TRUE. or ', &
332	'cloud_droplets = .TRUE.'
333	CALL message( 'init_masks', 'PA0106', 1, 2, 0, 6, 0 )
334	ENDIF
335	unit = 'kg/kg'
336
337	CASE ( 'ql_c', 'ql_v', 'ql_vp' )
338	IF ( .NOT. cloud_droplets ) THEN
339	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
340	'" requires cloud_droplets = .TRUE.'
341	CALL message( 'init_masks', 'PA0107', 1, 2, 0, 6, 0 )
342	ENDIF
343	IF ( TRIM( var ) == 'ql_c' ) unit = 'kg/kg'
344	IF ( TRIM( var ) == 'ql_v' ) unit = 'm3'
345	IF ( TRIM( var ) == 'ql_vp' ) unit = 'none'
346
347	CASE ( 'qv' )
348	IF ( .NOT. bulk_cloud_model ) THEN
349	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
350	'" requires bulk_cloud_model = .TRUE.'
351	CALL message( 'init_masks', 'PA0108', 1, 2, 0, 6, 0 )
352	ENDIF
353	unit = 'kg/kg'
354
355	CASE ( 'qi' )
356	IF ( .NOT. bulk_cloud_model ) THEN
357	message_string = 'output of "' // TRIM( var ) // '" ' // &
358	'requires bulk_cloud_model = .TRUE.'
359	CALL message( 'check_parameters', 'PA0108', 1, 2, 0, 6, 0 )
360	ELSEIF ( .NOT. microphysics_ice_phase ) THEN
361	message_string = 'output of "' // TRIM( var ) // '" ' // &
362	'requires microphysics_ice_phase = .TRUE.'
363	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
364	ENDIF
365	unit = 'kg/kg'
366
367	CASE ( 'qr' )
368	IF ( .NOT. bulk_cloud_model ) THEN
369	message_string = 'output of "' // TRIM( var ) // '" ' // &
370	'requires bulk_cloud_model = .TRUE.'
371	CALL message( 'check_parameters', 'PA0108', 1, 2, 0, 6, 0 )
372	ELSEIF ( .NOT. microphysics_seifert ) THEN
373	message_string = 'output of "' // TRIM( var ) // '" ' // &
374	'requires cloud_scheme = seifert_beheng'
375	CALL message( 'check_parameters', 'PA0359', 1, 2, 0, 6, 0 )
376	ENDIF
377	unit = 'kg/kg'
378
379	CASE ( 'rho_sea_water' )
380	IF ( .NOT. ocean_mode ) THEN
381	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
382	'" requires ocean mode'
383	CALL message( 'init_masks', 'PA0109', 1, 2, 0, 6, 0 )
384	ENDIF
385	unit = 'kg/m3'
386
387	CASE ( 's' )
388	IF ( .NOT. passive_scalar ) THEN
389	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
390	'" requires passive_scalar = .TRUE.'
391	CALL message( 'init_masks', 'PA0110', 1, 2, 0, 6, 0 )
392	ENDIF
393	unit = 'conc'
394
395	CASE ( 'sa' )
396	IF ( .NOT. ocean_mode ) THEN
397	WRITE ( message_string, * ) 'output of "', TRIM( var ), &
398	'" requires ocean mode'
399	CALL message( 'init_masks', 'PA0109', 1, 2, 0, 6, 0 )
400	ENDIF
401	unit = 'psu'
402
403	CASE ( 'us', 't', 'lwp', 'pra', 'prr', 'z0', 'z0h*' )
404	WRITE ( message_string, * ) 'illegal value for data_', &
405	'output: "', TRIM( var ), '" is only allowed', &
406	'for horizontal cross section'
407	CALL message( 'init_masks', 'PA0111', 1, 2, 0, 6, 0 )
408
409	CASE ( 'p', 'theta', 'u', 'v', 'w' )
410	IF ( TRIM( var ) == 'p' ) unit = 'Pa'
411	IF ( TRIM( var ) == 'theta' ) unit = 'K'
412	IF ( TRIM( var ) == 'u' ) unit = 'm/s'
413	IF ( TRIM( var ) == 'v' ) unit = 'm/s'
414	IF ( TRIM( var ) == 'w' ) unit = 'm/s'
415	CONTINUE
416
417	CASE DEFAULT
418	!
419	!-- Allocate arrays for other modules
420	CALL module_interface_init_masks( var, unit )
421
422	IF ( unit == 'illegal' ) THEN
423	IF ( do_mask_user(mid,1) /= ' ' ) THEN
424	WRITE ( message_string, * ) 'illegal value for data_', &
425	'output_masks or data_output_masks_user: "', &
426	TRIM( do_mask(mid,i) ), '"'
427	CALL message( 'init_masks', 'PA0018', 1, 2, 0, 6, 0 )
428	ELSE
429	WRITE ( message_string, * ) 'illegal value for data_', &
430	' output_masks : "', TRIM( do_mask(mid,i) ), '"'
431	CALL message( 'init_masks', 'PA0330', 1, 2, 0, 6, 0 )
432	ENDIF
433	ENDIF
434
435	END SELECT
436	!
437	!-- Set the internal steering parameters appropriately
438	domask_no(mid,j) = domask_no(mid,j) + 1
439	domask(mid,j,domask_no(mid,j)) = do_mask(mid,i)
440	domask_unit(mid,j,domask_no(mid,j)) = unit
441
442	IF ( j == 1 ) THEN
443	!
444	!-- Check, if variable is already subject to averaging
445	found = .FALSE.
446	DO k = 1, doav_n
447	IF ( TRIM( doav(k) ) == TRIM( var ) ) found = .TRUE.
448	ENDDO
449
450	IF ( .NOT. found ) THEN
451	doav_n = doav_n + 1
452	doav(doav_n) = var
453	ENDIF
454	ENDIF
455
456	i = i + 1
457
458	ENDDO ! do_mask(mid,i)
459	ENDDO ! mid
460
461
462	!
463	!-- Determine mask locations for each mask
464	DO mid = 1, masks
465	!
466	!-- Set local masks for each subdomain along all three dimensions
467	CALL set_mask_locations( 1, dx, 'dx', nx, 'nx', nxl, nxr )
468	CALL set_mask_locations( 2, dy, 'dy', ny, 'ny', nys, nyn )
469	IF ( .NOT. mask_surface(mid) ) THEN
470	CALL set_mask_locations( 3, dz(1), 'dz', nz, 'nz', nzb, nzt )
471	ELSE
472	!
473	!-- Set vertical mask locations and size in case of terrain-following
474	!-- output
475	count = 0
476	DO WHILE ( mask_k_over_surface(mid, count+1) >= 0 )
477	m = mask_k_over_surface(mid, count+1)
478	IF ( m > nz+1 ) THEN
479	WRITE ( message_string, '(I3,A,I3,A,I1,3A,I3)' ) &
480	m,' in mask ',mid,' along dimension ', 3, &
481	' exceeds (nz+1) = ',nz+1
482	CALL message( 'init_masks', 'PA0331', 1, 2, 0, 6, 0 )
483	ENDIF
484	count = count + 1
485	mask_k(mid,count) = mask_k_over_surface(mid, count)
486	IF ( count == mask_xyz_dimension ) EXIT
487	ENDDO
488	mask_start_l(mid,3) = 1
489	mask_size(mid,3) = count
490	mask_size_l(mid,3) = count
491	ENDIF
492	!
493	!-- Set global masks along all three dimensions (required by
494	!-- define_netcdf_header).
495	#if defined( __parallel )
496	!
497	!-- PE0 receives partial arrays from all processors of the respective mask
498	!-- and outputs them. Here a barrier has to be set, because otherwise
499	!-- "-MPI- FATAL: Remote protocol queue full" may occur.
500
501	CALL MPI_BARRIER( comm2d, ierr )
502
503	IF ( myid == 0 ) THEN
504	!
505	!-- Local arrays can be relocated directly.
506	mask_i_global(mid,mask_start_l(mid,1): &
507	mask_start_l(mid,1)+mask_size_l(mid,1)-1) = &
508	mask_i(mid,:mask_size_l(mid,1))
509	mask_j_global(mid,mask_start_l(mid,2): &
510	mask_start_l(mid,2)+mask_size_l(mid,2)-1) = &
511	mask_j(mid,:mask_size_l(mid,2))
512	mask_k_global(mid,mask_start_l(mid,3): &
513	mask_start_l(mid,3)+mask_size_l(mid,3)-1) = &
514	mask_k(mid,:mask_size_l(mid,3))
515	!
516	!-- Receive data from all other PEs.
517	DO n = 1, numprocs-1
518	!
519	!-- Receive index limits first, then arrays.
520	!-- Index limits are received in arbitrary order from the PEs.
521	CALL MPI_RECV( ind(1), 6, MPI_INTEGER, MPI_ANY_SOURCE, 0, &
522	comm2d, status, ierr )
523	!
524	!-- Not all PEs have data for the mask.
525	IF ( ind(1) /= -9999 ) THEN
526	sender = status(MPI_SOURCE)
527	CALL MPI_RECV( tmp_array(ind(1)), ind(2)-ind(1)+1, &
528	MPI_INTEGER, sender, 1, comm2d, status, ierr )
529	mask_i_global(mid,ind(1):ind(2)) = tmp_array(ind(1):ind(2))
530	CALL MPI_RECV( tmp_array(ind(3)), ind(4)-ind(3)+1, &
531	MPI_INTEGER, sender, 2, comm2d, status, ierr )
532	mask_j_global(mid,ind(3):ind(4)) = tmp_array(ind(3):ind(4))
533	CALL MPI_RECV( tmp_array(ind(5)), ind(6)-ind(5)+1, &
534	MPI_INTEGER, sender, 3, comm2d, status, ierr )
535	mask_k_global(mid,ind(5):ind(6)) = tmp_array(ind(5):ind(6))
536	ENDIF
537	ENDDO
538
539	ELSE
540	!
541	!-- If at least part of the mask resides on the PE, send the index limits
542	!-- for the target array, otherwise send -9999 to PE0.
543	IF ( mask_size_l(mid,1) > 0 .AND. mask_size_l(mid,2) > 0 .AND. &
544	mask_size_l(mid,3) > 0 ) THEN
545	ind(1) = mask_start_l(mid,1)
546	ind(2) = mask_start_l(mid,1) + mask_size_l(mid,1) - 1
547	ind(3) = mask_start_l(mid,2)
548	ind(4) = mask_start_l(mid,2) + mask_size_l(mid,2) - 1
549	ind(5) = mask_start_l(mid,3)
550	ind(6) = mask_start_l(mid,3) + mask_size_l(mid,3) - 1
551	ELSE
552	ind(1) = -9999; ind(2) = -9999
553	ind(3) = -9999; ind(4) = -9999
554	ind(5) = -9999; ind(6) = -9999
555	ENDIF
556	CALL MPI_SEND( ind(1), 6, MPI_INTEGER, 0, 0, comm2d, ierr )
557	!
558	!-- If applicable, send data to PE0.
559	IF ( ind(1) /= -9999 ) THEN
560	tmp_array(:mask_size_l(mid,1)) = mask_i(mid,:mask_size_l(mid,1))
561	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,1), &
562	MPI_INTEGER, 0, 1, comm2d, ierr )
563	tmp_array(:mask_size_l(mid,2)) = mask_j(mid,:mask_size_l(mid,2))
564	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,2), &
565	MPI_INTEGER, 0, 2, comm2d, ierr )
566	tmp_array(:mask_size_l(mid,3)) = mask_k(mid,:mask_size_l(mid,3))
567	CALL MPI_SEND( tmp_array(1), mask_size_l(mid,3), &
568	MPI_INTEGER, 0, 3, comm2d, ierr )
569	ENDIF
570	ENDIF
571	!
572	!-- A barrier has to be set, because otherwise some PEs may proceed too fast
573	!-- so that PE0 may receive wrong data on tag 0.
574	CALL MPI_BARRIER( comm2d, ierr )
575
576	IF ( netcdf_data_format > 4 ) THEN
577
578	CALL MPI_BCAST( mask_i_global(mid,:), nx+2, MPI_INTEGER, 0, comm2d, &
579	ierr )
580	CALL MPI_BCAST( mask_j_global(mid,:), ny+2, MPI_INTEGER, 0, comm2d, &
581	ierr )
582	CALL MPI_BCAST( mask_k_global(mid,:), nz+2, MPI_INTEGER, 0, comm2d, &
583	ierr )
584
585	ENDIF
586
587	#else
588	!
589	!-- Local arrays can be relocated directly.
590	mask_i_global(mid,:) = mask_i(mid,:)
591	mask_j_global(mid,:) = mask_j(mid,:)
592	mask_k_global(mid,:) = mask_k(mid,:)
593	#endif
594	ENDDO ! mid
595
596	DEALLOCATE( tmp_array )
597	!
598	!-- Internal mask arrays cannot be deallocated on PE 0 because they are
599	!-- required for header output on PE 0.
600	IF ( myid /= 0 ) DEALLOCATE( mask, mask_loop )
601
602	CONTAINS
603
604	!------------------------------------------------------------------------------!
605	! Description:
606	! ------------
607	!> Set local mask for each subdomain along 'dim' direction.
608	!------------------------------------------------------------------------------!
609	SUBROUTINE set_mask_locations( dim, dxyz, dxyz_string, nxyz, nxyz_string, &
610	lb, ub )
611
612	IMPLICIT NONE
613
614	CHARACTER (LEN=2) :: dxyz_string !<
615	CHARACTER (LEN=2) :: nxyz_string !<
616
617	INTEGER(iwp) :: count !<
618	INTEGER(iwp) :: count_l !<
619	INTEGER(iwp) :: dim !<
620	INTEGER(iwp) :: m !<
621	INTEGER(iwp) :: loop_begin !<
622	INTEGER(iwp) :: loop_end !<
623	INTEGER(iwp) :: loop_stride !<
624	INTEGER(iwp) :: lb !<
625	INTEGER(iwp) :: nxyz !<
626	INTEGER(iwp) :: ub !<
627
628	REAL(wp) :: dxyz !<
629	REAL(wp) :: ddxyz !<
630	REAL(wp) :: tmp1 !<
631	REAL(wp) :: tmp2 !<
632
633	count = 0; count_l = 0
634	ddxyz = 1.0_wp / dxyz
635	tmp1 = 0.0_wp
636	tmp2 = 0.0_wp
637
638	IF ( mask(mid,dim,1) >= 0.0_wp ) THEN
639	!
640	!-- use predefined mask_* array
641	DO WHILE ( mask(mid,dim,count+1) >= 0.0_wp )
642	count = count + 1
643	IF ( dim == 1 .OR. dim == 2 ) THEN
644	m = NINT( mask(mid,dim,count) * mask_scale(dim) * ddxyz - 0.5_wp )
645	IF ( m < 0 ) m = 0 ! avoid negative values
646	ELSEIF ( dim == 3 ) THEN
647	ind_array = &
648	MINLOC( ABS( mask(mid,dim,count) * mask_scale(dim) - zu ) )
649	m = ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
650	ENDIF
651	IF ( m > (nxyz+1) ) THEN
652	WRITE ( message_string, '(I3,A,I3,A,I1,3A,I3)' ) &
653	m,' in mask ',mid,' along dimension ',dim, &
654	' exceeds (',nxyz_string,'+1) = ',nxyz+1
655	CALL message( 'init_masks', 'PA0331', 1, 2, 0, 6, 0 )
656	ENDIF
657	IF ( ( m >= lb .AND. m <= ub ) .OR. &
658	( m == (nxyz+1) .AND. ub == nxyz ) ) THEN
659	IF ( count_l == 0 ) mask_start_l(mid,dim) = count
660	count_l = count_l + 1
661	IF ( dim == 1 ) THEN
662	mask_i(mid,count_l) = m
663	ELSEIF ( dim == 2 ) THEN
664	mask_j(mid,count_l) = m
665	ELSEIF ( dim == 3 ) THEN
666	mask_k(mid,count_l) = m
667	ENDIF
668	ENDIF
669	IF ( count == mask_xyz_dimension ) EXIT
670	ENDDO
671	mask_size(mid,dim) = count
672	mask_size_l(mid,dim) = count_l
673
674	ELSE
675	!
676	!-- use predefined mask_loop_* array, or use the default (all grid points
677	!-- along this direction)
678	IF ( mask_loop(mid,dim,1) < 0.0_wp ) THEN
679	tmp1 = mask_loop(mid,dim,1)
680	mask_loop(mid,dim,1) = zw(nzb) ! lowest level (default)
681	ENDIF
682	IF ( dim == 1 .OR. dim == 2 ) THEN
683	IF ( mask_loop(mid,dim,2) < 0.0_wp ) THEN
684	tmp2 = mask_loop(mid,dim,2)
685	mask_loop(mid,dim,2) = nxyz*dxyz / mask_scale(dim) ! (default)
686	ENDIF
687	IF ( MAXVAL( mask_loop(mid,dim,1:2) ) &
688	> (nxyz+1) * dxyz / mask_scale(dim) ) THEN
689	WRITE ( message_string, '(2(A,I3,A,I1,A,F9.3),5A,I1,A,F9.3)' ) &
690	'mask_loop(',mid,',',dim,',1)=',mask_loop(mid,dim,1), &
691	' and/or mask_loop(',mid,',',dim,',2)=', &
692	mask_loop(mid,dim,2),' exceed (', &
693	nxyz_string,'+1)*',dxyz_string,'/mask_scale(',dim,')=', &
694	(nxyz+1)*dxyz/mask_scale(dim)
695	CALL message( 'init_masks', 'PA0332', 1, 2, 0, 6, 0 )
696	ENDIF
697	loop_begin = NINT( mask_loop(mid,dim,1) * mask_scale(dim) &
698	* ddxyz - 0.5_wp )
699	loop_end = NINT( mask_loop(mid,dim,2) * mask_scale(dim) &
700	* ddxyz - 0.5_wp )
701	loop_stride = NINT( mask_loop(mid,dim,3) * mask_scale(dim) &
702	* ddxyz )
703	IF ( loop_begin == -1 ) loop_begin = 0 ! avoid negative values
704	ELSEIF ( dim == 3 ) THEN
705	IF ( mask_loop(mid,dim,2) < 0.0_wp ) THEN
706	tmp2 = mask_loop(mid,dim,2)
707	mask_loop(mid,dim,2) = zu(nz+1) / mask_scale(dim) ! (default)
708	ENDIF
709	IF ( MAXVAL( mask_loop(mid,dim,1:2) ) &
710	> zu(nz+1) / mask_scale(dim) ) THEN
711	WRITE ( message_string, '(2(A,I3,A,I1,A,F9.3),A,I1,A,F9.3)' ) &
712	'mask_loop(',mid,',',dim,',1)=',mask_loop(mid,dim,1), &
713	' and/or mask_loop(',mid,',',dim,',2)=', &
714	mask_loop(mid,dim,2),' exceed zu(nz+1)/mask_scale(',dim, &
715	')=',zu(nz+1)/mask_scale(dim)
716	CALL message( 'init_masks', 'PA0333', 1, 2, 0, 6, 0 )
717	ENDIF
718	ind_array = &
719	MINLOC( ABS( mask_loop(mid,dim,1) * mask_scale(dim) - zu ) )
720	loop_begin = &
721	ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
722	ind_array = &
723	MINLOC( ABS( mask_loop(mid,dim,2) * mask_scale(dim) - zu ) )
724	loop_end = ind_array(1) - 1 + nzb ! MINLOC uses lower array bound 1
725	!
726	!-- The following line assumes a constant vertical grid spacing within
727	!-- the vertical mask range; it fails for vertical grid stretching.
728	!-- Maybe revise later. Issue warning but continue execution. ABS(...)
729	!-- within the IF statement is necessary because the default value of
730	!-- dz_stretch_level_start is -9999999.9_wp.
731	loop_stride = NINT( mask_loop(mid,dim,3) * mask_scale(dim) * ddxyz )
732
733	IF ( mask_loop(mid,dim,2) * mask_scale(dim) > &
734	ABS( dz_stretch_level_start(1) ) ) THEN
735	WRITE ( message_string, '(A,I3,A,I1,A,F9.3,A,F8.2,3A)' ) &
736	'mask_loop(',mid,',',dim,',2)=', mask_loop(mid,dim,2), &
737	' exceeds dz_stretch_level=',dz_stretch_level_start(1), &
738	'.&Vertical mask locations will not ', &
739	'match the desired heights within the stretching ', &
740	'region.'
741	CALL message( 'init_masks', 'PA0334', 0, 1, 0, 6, 0 )
742	ENDIF
743
744	ENDIF
745	!
746	!-- If necessary, reset mask_loop(mid,dim,1) and mask_loop(mid,dim,2).
747	IF ( tmp1 < 0.0_wp ) mask_loop(mid,dim,1) = tmp1
748	IF ( tmp2 < 0.0_wp ) mask_loop(mid,dim,2) = tmp2
749	!
750	!-- The default stride +/-1 (every grid point) applies if
751	!-- mask_loop(mid,dim,3) is not specified (its default is zero).
752	IF ( loop_stride == 0 ) THEN
753	IF ( loop_end >= loop_begin ) THEN
754	loop_stride = 1
755	ELSE
756	loop_stride = -1
757	ENDIF
758	ENDIF
759	DO m = loop_begin, loop_end, loop_stride
760	count = count + 1
761	IF ( ( m >= lb .AND. m <= ub ) .OR. &
762	( m == (nxyz+1) .AND. ub == nxyz ) ) THEN
763	IF ( count_l == 0 ) mask_start_l(mid,dim) = count
764	count_l = count_l + 1
765	IF ( dim == 1 ) THEN
766	mask_i(mid,count_l) = m
767	ELSEIF ( dim == 2 ) THEN
768	mask_j(mid,count_l) = m
769	ELSEIF ( dim == 3 ) THEN
770	mask_k(mid,count_l) = m
771	ENDIF
772	ENDIF
773	ENDDO
774	mask_size(mid,dim) = count
775	mask_size_l(mid,dim) = count_l
776
777	ENDIF
778
779	END SUBROUTINE set_mask_locations
780
781	END SUBROUTINE init_masks

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