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source: palm/trunk/SOURCE/data_output_mask.f90 @ 1928

Last change on this file since 1928 was 1818, checked in by maronga, 9 years ago
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1	!> @file data_output_mask.f90
2	!--------------------------------------------------------------------------------!
3	! This file is part of PALM.
4	!
5	! PALM is free software: you can redistribute it and/or modify it under the terms
6	! of the GNU General Public License as published by the Free Software Foundation,
7	! either version 3 of the License, or (at your option) any later version.
8	!
9	! PALM is distributed in the hope that it will be useful, but WITHOUT ANY
10	! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
11	! A PARTICULAR PURPOSE. See the GNU General Public License for more details.
12	!
13	! You should have received a copy of the GNU General Public License along with
14	! PALM. If not, see <http://www.gnu.org/licenses/>.
15	!
16	! Copyright 1997-2016 Leibniz Universitaet Hannover
17	!--------------------------------------------------------------------------------!
18	!
19	! Current revisions:
20	! -----------------
21	!
22	!
23	! Former revisions:
24	! -----------------
25	! $Id: data_output_mask.f90 1818 2016-04-06 15:53:27Z hellstea $
26	!
27	! 2016-03-06 18:36:17Z raasch
28	! name change of netcdf routines and module + related changes,
29	! switch back of netcdf data format moved from time integration routine to here
30	!
31	! 1691 2015-10-26 16:17:44Z maronga
32	! Added output of radiative heating rates for RRTMG
33	!
34	! 1682 2015-10-07 23:56:08Z knoop
35	! Code annotations made doxygen readable
36	!
37	! 1585 2015-04-30 07:05:52Z maronga
38	! Added support for RRTMG
39	!
40	! 1438 2014-07-22 14:14:06Z heinze
41	! +nr, qc, qr
42	!
43	! 1359 2014-04-11 17:15:14Z hoffmann
44	! New particle structure integrated.
45	!
46	! 1353 2014-04-08 15:21:23Z heinze
47	! REAL constants provided with KIND-attribute
48	!
49	! 1327 2014-03-21 11:00:16Z raasch
50	!
51	!
52	! 1320 2014-03-20 08:40:49Z raasch
53	! ONLY-attribute added to USE-statements,
54	! kind-parameters added to all INTEGER and REAL declaration statements,
55	! kinds are defined in new module kinds,
56	! revision history before 2012 removed,
57	! comment fields (!:) to be used for variable explanations added to
58	! all variable declaration statements
59	!
60	! 1318 2014-03-17 13:35:16Z raasch
61	! barrier argument removed from cpu_log,
62	! module interfaces removed
63	!
64	! 1092 2013-02-02 11:24:22Z raasch
65	! unused variables removed
66	!
67	! 1036 2012-10-22 13:43:42Z raasch
68	! code put under GPL (PALM 3.9)
69	!
70	! 1031 2012-10-19 14:35:30Z raasch
71	! netCDF4 without parallel file support implemented
72	!
73	! 1007 2012-09-19 14:30:36Z franke
74	! Bugfix: calculation of pr must depend on the particle weighting factor,
75	! missing calculation of ql_vp added
76	!
77	! 410 2009-12-04 17:05:40Z letzel
78	! Initial version
79	!
80	! Description:
81	! ------------
82	!> Masked data output in netCDF format for current mask (current value of mid).
83	!------------------------------------------------------------------------------!
84	SUBROUTINE data_output_mask( av )
85
86
87
88	#if defined( __netcdf )
89	USE arrays_3d, &
90	ONLY: e, nr, p, pt, q, qc, ql, ql_c, ql_v, qr, rho, sa, tend, u, &
91	v, vpt, w
92
93	USE averaging, &
94	ONLY: e_av, lpt_av, nr_av, p_av, pc_av, pr_av, pt_av, q_av, qc_av, &
95	ql_av, ql_c_av, ql_v_av, ql_vp_av, qv_av, qr_av, rho_av, s_av, &
96	sa_av, u_av, v_av, vpt_av, w_av
97
98	USE cloud_parameters, &
99	ONLY: l_d_cp, pt_d_t
100
101	USE control_parameters, &
102	ONLY: cloud_physics, domask, domask_no, domask_time_count, mask_i, &
103	mask_j, mask_k, mask_size, mask_size_l, mask_start_l, &
104	max_masks, message_string, mid, nz_do3d, simulated_time
105	USE cpulog, &
106	ONLY: cpu_log, log_point
107
108	USE indices, &
109	ONLY: nbgp, nxl, nxr, nyn, nys, nzb, nzt
110
111	USE kinds
112
113	USE NETCDF
114
115	USE netcdf_interface, &
116	ONLY: id_set_mask, id_var_domask, id_var_time_mask, nc_stat, &
117	netcdf_data_format, netcdf_handle_error
118
119	USE particle_attributes, &
120	ONLY: grid_particles, number_of_particles, particles, &
121	particle_advection_start, prt_count
122
123	USE pegrid
124
125	USE radiation_model_mod, &
126	ONLY: rad_lw_in, rad_lw_in_av, rad_lw_out, rad_lw_out_av, &
127	rad_lw_cs_hr, rad_lw_cs_hr_av, rad_lw_hr, rad_lw_hr_av, &
128	rad_sw_in, rad_sw_in_av, rad_sw_out, rad_sw_out_av, &
129	rad_sw_cs_hr, rad_sw_cs_hr_av, rad_sw_hr, rad_sw_hr_av
130
131
132	IMPLICIT NONE
133
134	INTEGER(iwp) :: av !<
135	INTEGER(iwp) :: ngp !<
136	INTEGER(iwp) :: i !<
137	INTEGER(iwp) :: if !<
138	INTEGER(iwp) :: j !<
139	INTEGER(iwp) :: k !<
140	INTEGER(iwp) :: n !<
141	INTEGER(iwp) :: netcdf_data_format_save !<
142	INTEGER(iwp) :: psi !<
143	INTEGER(iwp) :: sender !<
144	INTEGER(iwp) :: ind(6) !<
145
146	LOGICAL :: found !<
147	LOGICAL :: resorted !<
148
149	REAL(wp) :: mean_r !<
150	REAL(wp) :: s_r2 !<
151	REAL(wp) :: s_r3 !<
152
153	REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: local_pf !<
154	#if defined( __parallel )
155	REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: total_pf !<
156	#endif
157	REAL(wp), DIMENSION(:,:,:), POINTER :: to_be_resorted !<
158
159	!
160	!-- Return, if nothing to output
161	IF ( domask_no(mid,av) == 0 ) RETURN
162
163	CALL cpu_log (log_point(49),'data_output_mask','start')
164
165	!
166	!-- Parallel netcdf output is not tested so far for masked data, hence
167	!-- netcdf_data_format is switched back to non-paralell output.
168	netcdf_data_format_save = netcdf_data_format
169	IF ( netcdf_data_format == 5 ) netcdf_data_format = 3
170	IF ( netcdf_data_format == 6 ) netcdf_data_format = 4
171
172	!
173	!-- Open output file.
174	IF ( myid == 0 .OR. netcdf_data_format > 4 ) THEN
175	CALL check_open( 200+mid+av*max_masks )
176	ENDIF
177
178	!
179	!-- Allocate total and local output arrays.
180	#if defined( __parallel )
181	IF ( myid == 0 ) THEN
182	ALLOCATE( total_pf(mask_size(mid,1),mask_size(mid,2),mask_size(mid,3)) )
183	ENDIF
184	#endif
185	ALLOCATE( local_pf(mask_size_l(mid,1),mask_size_l(mid,2), &
186	mask_size_l(mid,3)) )
187
188	!
189	!-- Update the netCDF time axis.
190	domask_time_count(mid,av) = domask_time_count(mid,av) + 1
191	IF ( myid == 0 .OR. netcdf_data_format > 4 ) THEN
192	nc_stat = NF90_PUT_VAR( id_set_mask(mid,av), id_var_time_mask(mid,av), &
193	(/ simulated_time /), &
194	start = (/ domask_time_count(mid,av) /), &
195	count = (/ 1 /) )
196	CALL netcdf_handle_error( 'data_output_mask', 460 )
197	ENDIF
198
199	!
200	!-- Loop over all variables to be written.
201	if = 1
202
203	DO WHILE ( domask(mid,av,if)(1:1) /= ' ' )
204	!
205	!-- Reallocate local_pf on PE 0 since its shape changes during MPI exchange
206	IF ( netcdf_data_format < 5 .AND. myid == 0 .AND. if > 1 ) THEN
207	DEALLOCATE( local_pf )
208	ALLOCATE( local_pf(mask_size_l(mid,1),mask_size_l(mid,2), &
209	mask_size_l(mid,3)) )
210	ENDIF
211	!
212	!-- Store the variable chosen.
213	resorted = .FALSE.
214	SELECT CASE ( TRIM( domask(mid,av,if) ) )
215
216	CASE ( 'e' )
217	IF ( av == 0 ) THEN
218	to_be_resorted => e
219	ELSE
220	to_be_resorted => e_av
221	ENDIF
222
223	CASE ( 'lpt' )
224	IF ( av == 0 ) THEN
225	to_be_resorted => pt
226	ELSE
227	to_be_resorted => lpt_av
228	ENDIF
229
230	CASE ( 'nr' )
231	IF ( av == 0 ) THEN
232	to_be_resorted => nr
233	ELSE
234	to_be_resorted => nr_av
235	ENDIF
236
237	CASE ( 'p' )
238	IF ( av == 0 ) THEN
239	to_be_resorted => p
240	ELSE
241	to_be_resorted => p_av
242	ENDIF
243
244	CASE ( 'pc' ) ! particle concentration (requires ghostpoint exchange)
245	IF ( av == 0 ) THEN
246	tend = prt_count
247	CALL exchange_horiz( tend, nbgp )
248	DO i = 1, mask_size_l(mid,1)
249	DO j = 1, mask_size_l(mid,2)
250	DO k = 1, mask_size_l(mid,3)
251	local_pf(i,j,k) = tend(mask_k(mid,k), &
252	mask_j(mid,j),mask_i(mid,i))
253	ENDDO
254	ENDDO
255	ENDDO
256	resorted = .TRUE.
257	ELSE
258	CALL exchange_horiz( pc_av, nbgp )
259	to_be_resorted => pc_av
260	ENDIF
261
262	CASE ( 'pr' ) ! mean particle radius (effective radius)
263	IF ( av == 0 ) THEN
264	IF ( simulated_time >= particle_advection_start ) THEN
265	DO i = nxl, nxr
266	DO j = nys, nyn
267	DO k = nzb, nz_do3d
268	number_of_particles = prt_count(k,j,i)
269	IF (number_of_particles <= 0) CYCLE
270	particles => grid_particles(k,j,i)%particles(1:number_of_particles)
271	s_r2 = 0.0_wp
272	s_r3 = 0.0_wp
273	DO n = 1, number_of_particles
274	IF ( particles(n)%particle_mask ) THEN
275	s_r2 = s_r2 + grid_particles(k,j,i)%particles(n)%radius*2 &
276	grid_particles(k,j,i)%particles(n)%weight_factor
277	s_r3 = s_r3 + grid_particles(k,j,i)%particles(n)%radius*3 &
278	grid_particles(k,j,i)%particles(n)%weight_factor
279	ENDIF
280	ENDDO
281	IF ( s_r2 > 0.0_wp ) THEN
282	mean_r = s_r3 / s_r2
283	ELSE
284	mean_r = 0.0_wp
285	ENDIF
286	tend(k,j,i) = mean_r
287	ENDDO
288	ENDDO
289	ENDDO
290	CALL exchange_horiz( tend, nbgp )
291	ELSE
292	tend = 0.0_wp
293	ENDIF
294	DO i = 1, mask_size_l(mid,1)
295	DO j = 1, mask_size_l(mid,2)
296	DO k = 1, mask_size_l(mid,3)
297	local_pf(i,j,k) = tend(mask_k(mid,k), &
298	mask_j(mid,j),mask_i(mid,i))
299	ENDDO
300	ENDDO
301	ENDDO
302	resorted = .TRUE.
303	ELSE
304	CALL exchange_horiz( pr_av, nbgp )
305	to_be_resorted => pr_av
306	ENDIF
307
308	CASE ( 'pt' )
309	IF ( av == 0 ) THEN
310	IF ( .NOT. cloud_physics ) THEN
311	to_be_resorted => pt
312	ELSE
313	DO i = 1, mask_size_l(mid,1)
314	DO j = 1, mask_size_l(mid,2)
315	DO k = 1, mask_size_l(mid,3)
316	local_pf(i,j,k) = &
317	pt(mask_k(mid,k),mask_j(mid,j),mask_i(mid,i)) &
318	+ l_d_cp * pt_d_t(mask_k(mid,k)) * &
319	ql(mask_k(mid,k),mask_j(mid,j),mask_i(mid,i))
320	ENDDO
321	ENDDO
322	ENDDO
323	resorted = .TRUE.
324	ENDIF
325	ELSE
326	to_be_resorted => pt_av
327	ENDIF
328
329	CASE ( 'q' )
330	IF ( av == 0 ) THEN
331	to_be_resorted => q
332	ELSE
333	to_be_resorted => q_av
334	ENDIF
335
336	CASE ( 'qc' )
337	IF ( av == 0 ) THEN
338	to_be_resorted => qc
339	ELSE
340	to_be_resorted => qc_av
341	ENDIF
342
343	CASE ( 'ql' )
344	IF ( av == 0 ) THEN
345	to_be_resorted => ql
346	ELSE
347	to_be_resorted => ql_av
348	ENDIF
349
350	CASE ( 'ql_c' )
351	IF ( av == 0 ) THEN
352	to_be_resorted => ql_c
353	ELSE
354	to_be_resorted => ql_c_av
355	ENDIF
356
357	CASE ( 'ql_v' )
358	IF ( av == 0 ) THEN
359	to_be_resorted => ql_v
360	ELSE
361	to_be_resorted => ql_v_av
362	ENDIF
363
364	CASE ( 'ql_vp' )
365	IF ( av == 0 ) THEN
366	IF ( simulated_time >= particle_advection_start ) THEN
367	DO i = nxl, nxr
368	DO j = nys, nyn
369	DO k = nzb, nz_do3d
370	number_of_particles = prt_count(k,j,i)
371	IF (number_of_particles <= 0) CYCLE
372	particles => grid_particles(k,j,i)%particles(1:number_of_particles)
373	DO n = 1, number_of_particles
374	IF ( particles(n)%particle_mask ) THEN
375	tend(k,j,i) = tend(k,j,i) + &
376	particles(n)%weight_factor / &
377	prt_count(k,j,i)
378	ENDIF
379	ENDDO
380	ENDDO
381	ENDDO
382	ENDDO
383	CALL exchange_horiz( tend, nbgp )
384	ELSE
385	tend = 0.0_wp
386	ENDIF
387	DO i = 1, mask_size_l(mid,1)
388	DO j = 1, mask_size_l(mid,2)
389	DO k = 1, mask_size_l(mid,3)
390	local_pf(i,j,k) = tend(mask_k(mid,k), &
391	mask_j(mid,j),mask_i(mid,i))
392	ENDDO
393	ENDDO
394	ENDDO
395	resorted = .TRUE.
396	ELSE
397	CALL exchange_horiz( ql_vp_av, nbgp )
398	to_be_resorted => ql_vp_av
399	ENDIF
400
401	CASE ( 'qv' )
402	IF ( av == 0 ) THEN
403	DO i = 1, mask_size_l(mid,1)
404	DO j = 1, mask_size_l(mid,2)
405	DO k = 1, mask_size_l(mid,3)
406	local_pf(i,j,k) = &
407	q(mask_k(mid,k),mask_j(mid,j),mask_i(mid,i)) - &
408	ql(mask_k(mid,k),mask_j(mid,j),mask_i(mid,i))
409	ENDDO
410	ENDDO
411	ENDDO
412	resorted = .TRUE.
413	ELSE
414	to_be_resorted => qv_av
415	ENDIF
416
417	CASE ( 'qr' )
418	IF ( av == 0 ) THEN
419	to_be_resorted => qr
420	ELSE
421	to_be_resorted => qr_av
422	ENDIF
423
424	CASE ( 'rad_lw_in' )
425	IF ( av == 0 ) THEN
426	to_be_resorted => rad_lw_in
427	ELSE
428	to_be_resorted => rad_lw_in_av
429	ENDIF
430
431	CASE ( 'rad_lw_out' )
432	IF ( av == 0 ) THEN
433	to_be_resorted => rad_lw_out
434	ELSE
435	to_be_resorted => rad_lw_out_av
436	ENDIF
437
438	CASE ( 'rad_lw_cs_hr' )
439	IF ( av == 0 ) THEN
440	to_be_resorted => rad_lw_cs_hr
441	ELSE
442	to_be_resorted => rad_lw_cs_hr_av
443	ENDIF
444
445	CASE ( 'rad_lw_hr' )
446	IF ( av == 0 ) THEN
447	to_be_resorted => rad_lw_hr
448	ELSE
449	to_be_resorted => rad_lw_hr_av
450	ENDIF
451
452	CASE ( 'rad_sw_in' )
453	IF ( av == 0 ) THEN
454	to_be_resorted => rad_sw_in
455	ELSE
456	to_be_resorted => rad_sw_in_av
457	ENDIF
458
459	CASE ( 'rad_sw_out' )
460	IF ( av == 0 ) THEN
461	to_be_resorted => rad_sw_out
462	ELSE
463	to_be_resorted => rad_sw_out_av
464	ENDIF
465
466	CASE ( 'rad_sw_cs_hr' )
467	IF ( av == 0 ) THEN
468	to_be_resorted => rad_sw_cs_hr
469	ELSE
470	to_be_resorted => rad_sw_cs_hr_av
471	ENDIF
472
473	CASE ( 'rad_sw_hr' )
474	IF ( av == 0 ) THEN
475	to_be_resorted => rad_sw_hr
476	ELSE
477	to_be_resorted => rad_sw_hr_av
478	ENDIF
479
480	CASE ( 'rho' )
481	IF ( av == 0 ) THEN
482	to_be_resorted => rho
483	ELSE
484	to_be_resorted => rho_av
485	ENDIF
486
487	CASE ( 's' )
488	IF ( av == 0 ) THEN
489	to_be_resorted => q
490	ELSE
491	to_be_resorted => s_av
492	ENDIF
493
494	CASE ( 'sa' )
495	IF ( av == 0 ) THEN
496	to_be_resorted => sa
497	ELSE
498	to_be_resorted => sa_av
499	ENDIF
500
501	CASE ( 'u' )
502	IF ( av == 0 ) THEN
503	to_be_resorted => u
504	ELSE
505	to_be_resorted => u_av
506	ENDIF
507
508	CASE ( 'v' )
509	IF ( av == 0 ) THEN
510	to_be_resorted => v
511	ELSE
512	to_be_resorted => v_av
513	ENDIF
514
515	CASE ( 'vpt' )
516	IF ( av == 0 ) THEN
517	to_be_resorted => vpt
518	ELSE
519	to_be_resorted => vpt_av
520	ENDIF
521
522	CASE ( 'w' )
523	IF ( av == 0 ) THEN
524	to_be_resorted => w
525	ELSE
526	to_be_resorted => w_av
527	ENDIF
528
529	CASE DEFAULT
530	!
531	!-- User defined quantity
532	CALL user_data_output_mask(av, domask(mid,av,if), found, local_pf )
533	resorted = .TRUE.
534
535	IF ( .NOT. found ) THEN
536	WRITE ( message_string, * ) 'no output available for: ', &
537	TRIM( domask(mid,av,if) )
538	CALL message( 'data_output_mask', 'PA0327', 0, 0, 0, 6, 0 )
539	ENDIF
540
541	END SELECT
542
543	!
544	!-- Resort the array to be output, if not done above
545	IF ( .NOT. resorted ) THEN
546	DO i = 1, mask_size_l(mid,1)
547	DO j = 1, mask_size_l(mid,2)
548	DO k = 1, mask_size_l(mid,3)
549	local_pf(i,j,k) = to_be_resorted(mask_k(mid,k), &
550	mask_j(mid,j),mask_i(mid,i))
551	ENDDO
552	ENDDO
553	ENDDO
554	ENDIF
555
556	!
557	!-- I/O block. I/O methods are implemented
558	!-- (1) for parallel execution
559	!-- a. with netCDF 4 parallel I/O-enabled library
560	!-- b. with netCDF 3 library
561	!-- (2) for serial execution.
562	!-- The choice of method depends on the correct setting of preprocessor
563	!-- directives __parallel and __netcdf4_parallel as well as on the parameter
564	!-- netcdf_data_format.
565	#if defined( __parallel )
566	#if defined( __netcdf4_parallel )
567	IF ( netcdf_data_format > 4 ) THEN
568	!
569	!-- (1) a. Parallel I/O using netCDF 4 (not yet tested)
570	nc_stat = NF90_PUT_VAR( id_set_mask(mid,av), &
571	id_var_domask(mid,av,if), &
572	local_pf, &
573	start = (/ mask_start_l(mid,1), mask_start_l(mid,2), &
574	mask_start_l(mid,3), domask_time_count(mid,av) /), &
575	count = (/ mask_size_l(mid,1), mask_size_l(mid,2), &
576	mask_size_l(mid,3), 1 /) )
577	CALL netcdf_handle_error( 'data_output_mask', 461 )
578	ELSE
579	#endif
580	!
581	!-- (1) b. Conventional I/O only through PE0
582	!-- PE0 receives partial arrays from all processors of the respective mask
583	!-- and outputs them. Here a barrier has to be set, because otherwise
584	!-- "-MPI- FATAL: Remote protocol queue full" may occur.
585	CALL MPI_BARRIER( comm2d, ierr )
586
587	ngp = mask_size_l(mid,1) * mask_size_l(mid,2) * mask_size_l(mid,3)
588	IF ( myid == 0 ) THEN
589	!
590	!-- Local array can be relocated directly.
591	total_pf( &
592	mask_start_l(mid,1):mask_start_l(mid,1)+mask_size_l(mid,1)-1, &
593	mask_start_l(mid,2):mask_start_l(mid,2)+mask_size_l(mid,2)-1, &
594	mask_start_l(mid,3):mask_start_l(mid,3)+mask_size_l(mid,3)-1 ) &
595	= local_pf
596	!
597	!-- Receive data from all other PEs.
598	DO n = 1, numprocs-1
599	!
600	!-- Receive index limits first, then array.
601	!-- Index limits are received in arbitrary order from the PEs.
602	CALL MPI_RECV( ind(1), 6, MPI_INTEGER, MPI_ANY_SOURCE, 0, &
603	comm2d, status, ierr )
604	!
605	!-- Not all PEs have data for the mask
606	IF ( ind(1) /= -9999 ) THEN
607	ngp = ( ind(2)-ind(1)+1 ) * (ind(4)-ind(3)+1 ) * &
608	( ind(6)-ind(5)+1 )
609	sender = status(MPI_SOURCE)
610	DEALLOCATE( local_pf )
611	ALLOCATE(local_pf(ind(1):ind(2),ind(3):ind(4),ind(5):ind(6)))
612	CALL MPI_RECV( local_pf(ind(1),ind(3),ind(5)), ngp, &
613	MPI_REAL, sender, 1, comm2d, status, ierr )
614	total_pf(ind(1):ind(2),ind(3):ind(4),ind(5):ind(6)) &
615	= local_pf
616	ENDIF
617	ENDDO
618
619	nc_stat = NF90_PUT_VAR( id_set_mask(mid,av), &
620	id_var_domask(mid,av,if), total_pf, &
621	start = (/ 1, 1, 1, domask_time_count(mid,av) /), &
622	count = (/ mask_size(mid,1), mask_size(mid,2), &
623	mask_size(mid,3), 1 /) )
624	CALL netcdf_handle_error( 'data_output_mask', 462 )
625
626	ELSE
627	!
628	!-- If at least part of the mask resides on the PE, send the index
629	!-- limits for the target array, otherwise send -9999 to PE0.
630	IF ( mask_size_l(mid,1) > 0 .AND. mask_size_l(mid,2) > 0 .AND. &
631	mask_size_l(mid,3) > 0 ) &
632	THEN
633	ind(1) = mask_start_l(mid,1)
634	ind(2) = mask_start_l(mid,1) + mask_size_l(mid,1) - 1
635	ind(3) = mask_start_l(mid,2)
636	ind(4) = mask_start_l(mid,2) + mask_size_l(mid,2) - 1
637	ind(5) = mask_start_l(mid,3)
638	ind(6) = mask_start_l(mid,3) + mask_size_l(mid,3) - 1
639	ELSE
640	ind(1) = -9999; ind(2) = -9999
641	ind(3) = -9999; ind(4) = -9999
642	ind(5) = -9999; ind(6) = -9999
643	ENDIF
644	CALL MPI_SEND( ind(1), 6, MPI_INTEGER, 0, 0, comm2d, ierr )
645	!
646	!-- If applicable, send data to PE0.
647	IF ( ind(1) /= -9999 ) THEN
648	CALL MPI_SEND( local_pf(1,1,1), ngp, MPI_REAL, 0, 1, comm2d, &
649	ierr )
650	ENDIF
651	ENDIF
652	!
653	!-- A barrier has to be set, because otherwise some PEs may proceed too
654	!-- fast so that PE0 may receive wrong data on tag 0.
655	CALL MPI_BARRIER( comm2d, ierr )
656	#if defined( __netcdf4_parallel )
657	ENDIF
658	#endif
659	#else
660	!
661	!-- (2) For serial execution of PALM, the single processor (PE0) holds all
662	!-- data and writes them directly to file.
663	nc_stat = NF90_PUT_VAR( id_set_mask(mid,av), &
664	id_var_domask(mid,av,if), &
665	local_pf, &
666	start = (/ 1, 1, 1, domask_time_count(mid,av) /), &
667	count = (/ mask_size_l(mid,1), mask_size_l(mid,2), &
668	mask_size_l(mid,3), 1 /) )
669	CALL netcdf_handle_error( 'data_output_mask', 463 )
670	#endif
671
672	if = if + 1
673
674	ENDDO
675
676	!
677	!-- Deallocate temporary arrays.
678	DEALLOCATE( local_pf )
679	#if defined( __parallel )
680	IF ( myid == 0 ) THEN
681	DEALLOCATE( total_pf )
682	ENDIF
683	#endif
684
685	!
686	!-- Switch back to original format given by user (see beginning of this routine)
687	netcdf_data_format = netcdf_data_format_save
688
689	CALL cpu_log( log_point(49), 'data_output_mask', 'stop' )
690	#endif
691
692	END SUBROUTINE data_output_mask

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