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source: palm/trunk/SOURCE/data_output_mask.f90 @ 2675

Last change on this file since 2675 was 2292, checked in by schwenkel, 8 years ago
implementation of new bulk microphysics scheme
Property svn:keywords set to `Id`
File size: 24.1 KB

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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
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 1997-2017 Leibniz Universitaet Hannover
18	!------------------------------------------------------------------------------!
19	!
20	! Current revisions:
21	! -----------------
22	!
23	!
24	! Former revisions:
25	! -----------------
26	! $Id: data_output_mask.f90 2292 2017-06-20 09:51:42Z basit $
27	! Implementation of new microphysic scheme: cloud_scheme = 'morrison'
28	! includes two more prognostic equations for cloud drop concentration (nc)
29	! and cloud water content (qc).
30	!
31	! 2101 2017-01-05 16:42:31Z suehring
32	!
33	! 2031 2016-10-21 15:11:58Z knoop
34	! renamed variable rho to rho_ocean and rho_av to rho_ocean_av
35	!
36	! 2000 2016-08-20 18:09:15Z knoop
37	! Forced header and separation lines into 80 columns
38	!
39	! 1980 2016-07-29 15:51:57Z suehring
40	! Bugfix, in order to steer user-defined output, setting flag found explicitly
41	! to .F.
42	!
43	! 1976 2016-07-27 13:28:04Z maronga
44	! Output of radiation quantities is now done directly in the respective module
45	!
46	! 1960 2016-07-12 16:34:24Z suehring
47	! Separate humidity and passive scalar
48	!
49	! 2016-03-06 18:36:17Z raasch
50	! name change of netcdf routines and module + related changes,
51	! switch back of netcdf data format moved from time integration routine to here
52	!
53	! 1691 2015-10-26 16:17:44Z maronga
54	! Added output of radiative heating rates for RRTMG
55	!
56	! 1682 2015-10-07 23:56:08Z knoop
57	! Code annotations made doxygen readable
58	!
59	! 1585 2015-04-30 07:05:52Z maronga
60	! Added support for RRTMG
61	!
62	! 1438 2014-07-22 14:14:06Z heinze
63	! +nr, qc, qr
64	!
65	! 1359 2014-04-11 17:15:14Z hoffmann
66	! New particle structure integrated.
67	!
68	! 1353 2014-04-08 15:21:23Z heinze
69	! REAL constants provided with KIND-attribute
70	!
71	! 1327 2014-03-21 11:00:16Z raasch
72	!
73	!
74	! 1320 2014-03-20 08:40:49Z raasch
75	! ONLY-attribute added to USE-statements,
76	! kind-parameters added to all INTEGER and REAL declaration statements,
77	! kinds are defined in new module kinds,
78	! revision history before 2012 removed,
79	! comment fields (!:) to be used for variable explanations added to
80	! all variable declaration statements
81	!
82	! 1318 2014-03-17 13:35:16Z raasch
83	! barrier argument removed from cpu_log,
84	! module interfaces removed
85	!
86	! 1092 2013-02-02 11:24:22Z raasch
87	! unused variables removed
88	!
89	! 1036 2012-10-22 13:43:42Z raasch
90	! code put under GPL (PALM 3.9)
91	!
92	! 1031 2012-10-19 14:35:30Z raasch
93	! netCDF4 without parallel file support implemented
94	!
95	! 1007 2012-09-19 14:30:36Z franke
96	! Bugfix: calculation of pr must depend on the particle weighting factor,
97	! missing calculation of ql_vp added
98	!
99	! 410 2009-12-04 17:05:40Z letzel
100	! Initial version
101	!
102	! Description:
103	! ------------
104	!> Masked data output in netCDF format for current mask (current value of mid).
105	!------------------------------------------------------------------------------!
106	SUBROUTINE data_output_mask( av )
107
108
109
110	#if defined( __netcdf )
111	USE arrays_3d, &
112	ONLY: e, nc, nr, p, pt, q, qc, ql, ql_c, ql_v, qr, rho_ocean, s, sa, &
113	tend, u, v, vpt, w
114
115	USE averaging, &
116	ONLY: e_av, lpt_av, nc_av, nr_av, p_av, pc_av, pr_av, pt_av, q_av, &
117	qc_av, ql_av, ql_c_av, ql_v_av, ql_vp_av, qv_av, qr_av, &
118	rho_ocean_av, s_av, sa_av, u_av, v_av, vpt_av, w_av
119
120	USE cloud_parameters, &
121	ONLY: l_d_cp, pt_d_t
122
123	USE control_parameters, &
124	ONLY: cloud_physics, domask, domask_no, domask_time_count, mask_i, &
125	mask_j, mask_k, mask_size, mask_size_l, mask_start_l, &
126	max_masks, message_string, mid, nz_do3d, simulated_time
127	USE cpulog, &
128	ONLY: cpu_log, log_point
129
130	USE indices, &
131	ONLY: nbgp, nxl, nxr, nyn, nys, nzb, nzt
132
133	USE kinds
134
135	USE NETCDF
136
137	USE netcdf_interface, &
138	ONLY: id_set_mask, id_var_domask, id_var_time_mask, nc_stat, &
139	netcdf_data_format, netcdf_handle_error
140
141	USE particle_attributes, &
142	ONLY: grid_particles, number_of_particles, particles, &
143	particle_advection_start, prt_count
144
145	USE pegrid
146
147	USE radiation_model_mod, &
148	ONLY: radiation, radiation_data_output_mask
149
150	IMPLICIT NONE
151
152	INTEGER(iwp) :: av !<
153	INTEGER(iwp) :: ngp !<
154	INTEGER(iwp) :: i !<
155	INTEGER(iwp) :: if !<
156	INTEGER(iwp) :: j !<
157	INTEGER(iwp) :: k !<
158	INTEGER(iwp) :: n !<
159	INTEGER(iwp) :: netcdf_data_format_save !<
160	INTEGER(iwp) :: psi !<
161	INTEGER(iwp) :: sender !<
162	INTEGER(iwp) :: ind(6) !<
163
164	LOGICAL :: found !<
165	LOGICAL :: resorted !<
166
167	REAL(wp) :: mean_r !<
168	REAL(wp) :: s_r2 !<
169	REAL(wp) :: s_r3 !<
170
171	REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: local_pf !<
172	#if defined( __parallel )
173	REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: total_pf !<
174	#endif
175	REAL(wp), DIMENSION(:,:,:), POINTER :: to_be_resorted !<
176
177	!
178	!-- Return, if nothing to output
179	IF ( domask_no(mid,av) == 0 ) RETURN
180
181	CALL cpu_log (log_point(49),'data_output_mask','start')
182
183	!
184	!-- Parallel netcdf output is not tested so far for masked data, hence
185	!-- netcdf_data_format is switched back to non-paralell output.
186	netcdf_data_format_save = netcdf_data_format
187	IF ( netcdf_data_format == 5 ) netcdf_data_format = 3
188	IF ( netcdf_data_format == 6 ) netcdf_data_format = 4
189
190	!
191	!-- Open output file.
192	IF ( myid == 0 .OR. netcdf_data_format > 4 ) THEN
193	CALL check_open( 200+mid+av*max_masks )
194	ENDIF
195
196	!
197	!-- Allocate total and local output arrays.
198	#if defined( __parallel )
199	IF ( myid == 0 ) THEN
200	ALLOCATE( total_pf(mask_size(mid,1),mask_size(mid,2),mask_size(mid,3)) )
201	ENDIF
202	#endif
203	ALLOCATE( local_pf(mask_size_l(mid,1),mask_size_l(mid,2), &
204	mask_size_l(mid,3)) )
205
206	!
207	!-- Update the netCDF time axis.
208	domask_time_count(mid,av) = domask_time_count(mid,av) + 1
209	IF ( myid == 0 .OR. netcdf_data_format > 4 ) THEN
210	nc_stat = NF90_PUT_VAR( id_set_mask(mid,av), id_var_time_mask(mid,av), &
211	(/ simulated_time /), &
212	start = (/ domask_time_count(mid,av) /), &
213	count = (/ 1 /) )
214	CALL netcdf_handle_error( 'data_output_mask', 460 )
215	ENDIF
216
217	!
218	!-- Loop over all variables to be written.
219	if = 1
220
221	DO WHILE ( domask(mid,av,if)(1:1) /= ' ' )
222	!
223	!-- Reallocate local_pf on PE 0 since its shape changes during MPI exchange
224	IF ( netcdf_data_format < 5 .AND. myid == 0 .AND. if > 1 ) THEN
225	DEALLOCATE( local_pf )
226	ALLOCATE( local_pf(mask_size_l(mid,1),mask_size_l(mid,2), &
227	mask_size_l(mid,3)) )
228	ENDIF
229	!
230	!-- Set flag to steer output of radiation, land-surface, or user-defined
231	!-- quantities
232	found = .FALSE.
233	!
234	!-- Store the variable chosen.
235	resorted = .FALSE.
236	SELECT CASE ( TRIM( domask(mid,av,if) ) )
237
238	CASE ( 'e' )
239	IF ( av == 0 ) THEN
240	to_be_resorted => e
241	ELSE
242	to_be_resorted => e_av
243	ENDIF
244
245	CASE ( 'lpt' )
246	IF ( av == 0 ) THEN
247	to_be_resorted => pt
248	ELSE
249	to_be_resorted => lpt_av
250	ENDIF
251
252	CASE ( 'nc' )
253	IF ( av == 0 ) THEN
254	to_be_resorted => nc
255	ELSE
256	to_be_resorted => nc_av
257	ENDIF
258
259	CASE ( 'nr' )
260	IF ( av == 0 ) THEN
261	to_be_resorted => nr
262	ELSE
263	to_be_resorted => nr_av
264	ENDIF
265
266	CASE ( 'p' )
267	IF ( av == 0 ) THEN
268	to_be_resorted => p
269	ELSE
270	to_be_resorted => p_av
271	ENDIF
272
273	CASE ( 'pc' ) ! particle concentration (requires ghostpoint exchange)
274	IF ( av == 0 ) THEN
275	tend = prt_count
276	CALL exchange_horiz( tend, nbgp )
277	DO i = 1, mask_size_l(mid,1)
278	DO j = 1, mask_size_l(mid,2)
279	DO k = 1, mask_size_l(mid,3)
280	local_pf(i,j,k) = tend(mask_k(mid,k), &
281	mask_j(mid,j),mask_i(mid,i))
282	ENDDO
283	ENDDO
284	ENDDO
285	resorted = .TRUE.
286	ELSE
287	CALL exchange_horiz( pc_av, nbgp )
288	to_be_resorted => pc_av
289	ENDIF
290
291	CASE ( 'pr' ) ! mean particle radius (effective radius)
292	IF ( av == 0 ) THEN
293	IF ( simulated_time >= particle_advection_start ) THEN
294	DO i = nxl, nxr
295	DO j = nys, nyn
296	DO k = nzb, nz_do3d
297	number_of_particles = prt_count(k,j,i)
298	IF (number_of_particles <= 0) CYCLE
299	particles => grid_particles(k,j,i)%particles(1:number_of_particles)
300	s_r2 = 0.0_wp
301	s_r3 = 0.0_wp
302	DO n = 1, number_of_particles
303	IF ( particles(n)%particle_mask ) THEN
304	s_r2 = s_r2 + grid_particles(k,j,i)%particles(n)%radius*2 &
305	grid_particles(k,j,i)%particles(n)%weight_factor
306	s_r3 = s_r3 + grid_particles(k,j,i)%particles(n)%radius*3 &
307	grid_particles(k,j,i)%particles(n)%weight_factor
308	ENDIF
309	ENDDO
310	IF ( s_r2 > 0.0_wp ) THEN
311	mean_r = s_r3 / s_r2
312	ELSE
313	mean_r = 0.0_wp
314	ENDIF
315	tend(k,j,i) = mean_r
316	ENDDO
317	ENDDO
318	ENDDO
319	CALL exchange_horiz( tend, nbgp )
320	ELSE
321	tend = 0.0_wp
322	ENDIF
323	DO i = 1, mask_size_l(mid,1)
324	DO j = 1, mask_size_l(mid,2)
325	DO k = 1, mask_size_l(mid,3)
326	local_pf(i,j,k) = tend(mask_k(mid,k), &
327	mask_j(mid,j),mask_i(mid,i))
328	ENDDO
329	ENDDO
330	ENDDO
331	resorted = .TRUE.
332	ELSE
333	CALL exchange_horiz( pr_av, nbgp )
334	to_be_resorted => pr_av
335	ENDIF
336
337	CASE ( 'pt' )
338	IF ( av == 0 ) THEN
339	IF ( .NOT. cloud_physics ) THEN
340	to_be_resorted => pt
341	ELSE
342	DO i = 1, mask_size_l(mid,1)
343	DO j = 1, mask_size_l(mid,2)
344	DO k = 1, mask_size_l(mid,3)
345	local_pf(i,j,k) = &
346	pt(mask_k(mid,k),mask_j(mid,j),mask_i(mid,i)) &
347	+ l_d_cp * pt_d_t(mask_k(mid,k)) * &
348	ql(mask_k(mid,k),mask_j(mid,j),mask_i(mid,i))
349	ENDDO
350	ENDDO
351	ENDDO
352	resorted = .TRUE.
353	ENDIF
354	ELSE
355	to_be_resorted => pt_av
356	ENDIF
357
358	CASE ( 'q' )
359	IF ( av == 0 ) THEN
360	to_be_resorted => q
361	ELSE
362	to_be_resorted => q_av
363	ENDIF
364
365	CASE ( 'qc' )
366	IF ( av == 0 ) THEN
367	to_be_resorted => qc
368	ELSE
369	to_be_resorted => qc_av
370	ENDIF
371
372	CASE ( 'ql' )
373	IF ( av == 0 ) THEN
374	to_be_resorted => ql
375	ELSE
376	to_be_resorted => ql_av
377	ENDIF
378
379	CASE ( 'ql_c' )
380	IF ( av == 0 ) THEN
381	to_be_resorted => ql_c
382	ELSE
383	to_be_resorted => ql_c_av
384	ENDIF
385
386	CASE ( 'ql_v' )
387	IF ( av == 0 ) THEN
388	to_be_resorted => ql_v
389	ELSE
390	to_be_resorted => ql_v_av
391	ENDIF
392
393	CASE ( 'ql_vp' )
394	IF ( av == 0 ) THEN
395	IF ( simulated_time >= particle_advection_start ) THEN
396	DO i = nxl, nxr
397	DO j = nys, nyn
398	DO k = nzb, nz_do3d
399	number_of_particles = prt_count(k,j,i)
400	IF (number_of_particles <= 0) CYCLE
401	particles => grid_particles(k,j,i)%particles(1:number_of_particles)
402	DO n = 1, number_of_particles
403	IF ( particles(n)%particle_mask ) THEN
404	tend(k,j,i) = tend(k,j,i) + &
405	particles(n)%weight_factor / &
406	prt_count(k,j,i)
407	ENDIF
408	ENDDO
409	ENDDO
410	ENDDO
411	ENDDO
412	CALL exchange_horiz( tend, nbgp )
413	ELSE
414	tend = 0.0_wp
415	ENDIF
416	DO i = 1, mask_size_l(mid,1)
417	DO j = 1, mask_size_l(mid,2)
418	DO k = 1, mask_size_l(mid,3)
419	local_pf(i,j,k) = tend(mask_k(mid,k), &
420	mask_j(mid,j),mask_i(mid,i))
421	ENDDO
422	ENDDO
423	ENDDO
424	resorted = .TRUE.
425	ELSE
426	CALL exchange_horiz( ql_vp_av, nbgp )
427	to_be_resorted => ql_vp_av
428	ENDIF
429
430	CASE ( 'qv' )
431	IF ( av == 0 ) THEN
432	DO i = 1, mask_size_l(mid,1)
433	DO j = 1, mask_size_l(mid,2)
434	DO k = 1, mask_size_l(mid,3)
435	local_pf(i,j,k) = &
436	q(mask_k(mid,k),mask_j(mid,j),mask_i(mid,i)) - &
437	ql(mask_k(mid,k),mask_j(mid,j),mask_i(mid,i))
438	ENDDO
439	ENDDO
440	ENDDO
441	resorted = .TRUE.
442	ELSE
443	to_be_resorted => qv_av
444	ENDIF
445
446	CASE ( 'qr' )
447	IF ( av == 0 ) THEN
448	to_be_resorted => qr
449	ELSE
450	to_be_resorted => qr_av
451	ENDIF
452
453	CASE ( 'rho_ocean' )
454	IF ( av == 0 ) THEN
455	to_be_resorted => rho_ocean
456	ELSE
457	to_be_resorted => rho_ocean_av
458	ENDIF
459
460	CASE ( 's' )
461	IF ( av == 0 ) THEN
462	to_be_resorted => s
463	ELSE
464	to_be_resorted => s_av
465	ENDIF
466
467	CASE ( 'sa' )
468	IF ( av == 0 ) THEN
469	to_be_resorted => sa
470	ELSE
471	to_be_resorted => sa_av
472	ENDIF
473
474	CASE ( 'u' )
475	IF ( av == 0 ) THEN
476	to_be_resorted => u
477	ELSE
478	to_be_resorted => u_av
479	ENDIF
480
481	CASE ( 'v' )
482	IF ( av == 0 ) THEN
483	to_be_resorted => v
484	ELSE
485	to_be_resorted => v_av
486	ENDIF
487
488	CASE ( 'vpt' )
489	IF ( av == 0 ) THEN
490	to_be_resorted => vpt
491	ELSE
492	to_be_resorted => vpt_av
493	ENDIF
494
495	CASE ( 'w' )
496	IF ( av == 0 ) THEN
497	to_be_resorted => w
498	ELSE
499	to_be_resorted => w_av
500	ENDIF
501
502	CASE DEFAULT
503
504	!
505	!-- Radiation quantity
506	IF ( radiation ) THEN
507	CALL radiation_data_output_mask(av, domask(mid,av,if), found, &
508	local_pf )
509	ENDIF
510
511	!
512	!-- User defined quantity
513	IF ( .NOT. found ) THEN
514	CALL user_data_output_mask(av, domask(mid,av,if), found, &
515	local_pf )
516	ENDIF
517
518	resorted = .TRUE.
519
520	IF ( .NOT. found ) THEN
521	WRITE ( message_string, * ) 'no output available for: ', &
522	TRIM( domask(mid,av,if) )
523	CALL message( 'data_output_mask', 'PA0327', 0, 0, 0, 6, 0 )
524	ENDIF
525
526	END SELECT
527
528	!
529	!-- Resort the array to be output, if not done above
530	IF ( .NOT. resorted ) THEN
531	DO i = 1, mask_size_l(mid,1)
532	DO j = 1, mask_size_l(mid,2)
533	DO k = 1, mask_size_l(mid,3)
534	local_pf(i,j,k) = to_be_resorted(mask_k(mid,k), &
535	mask_j(mid,j),mask_i(mid,i))
536	ENDDO
537	ENDDO
538	ENDDO
539	ENDIF
540
541	!
542	!-- I/O block. I/O methods are implemented
543	!-- (1) for parallel execution
544	!-- a. with netCDF 4 parallel I/O-enabled library
545	!-- b. with netCDF 3 library
546	!-- (2) for serial execution.
547	!-- The choice of method depends on the correct setting of preprocessor
548	!-- directives __parallel and __netcdf4_parallel as well as on the parameter
549	!-- netcdf_data_format.
550	#if defined( __parallel )
551	#if defined( __netcdf4_parallel )
552	IF ( netcdf_data_format > 4 ) THEN
553	!
554	!-- (1) a. Parallel I/O using netCDF 4 (not yet tested)
555	nc_stat = NF90_PUT_VAR( id_set_mask(mid,av), &
556	id_var_domask(mid,av,if), &
557	local_pf, &
558	start = (/ mask_start_l(mid,1), mask_start_l(mid,2), &
559	mask_start_l(mid,3), domask_time_count(mid,av) /), &
560	count = (/ mask_size_l(mid,1), mask_size_l(mid,2), &
561	mask_size_l(mid,3), 1 /) )
562	CALL netcdf_handle_error( 'data_output_mask', 461 )
563	ELSE
564	#endif
565	!
566	!-- (1) b. Conventional I/O only through PE0
567	!-- PE0 receives partial arrays from all processors of the respective mask
568	!-- and outputs them. Here a barrier has to be set, because otherwise
569	!-- "-MPI- FATAL: Remote protocol queue full" may occur.
570	CALL MPI_BARRIER( comm2d, ierr )
571
572	ngp = mask_size_l(mid,1) * mask_size_l(mid,2) * mask_size_l(mid,3)
573	IF ( myid == 0 ) THEN
574	!
575	!-- Local array can be relocated directly.
576	total_pf( &
577	mask_start_l(mid,1):mask_start_l(mid,1)+mask_size_l(mid,1)-1, &
578	mask_start_l(mid,2):mask_start_l(mid,2)+mask_size_l(mid,2)-1, &
579	mask_start_l(mid,3):mask_start_l(mid,3)+mask_size_l(mid,3)-1 ) &
580	= local_pf
581	!
582	!-- Receive data from all other PEs.
583	DO n = 1, numprocs-1
584	!
585	!-- Receive index limits first, then array.
586	!-- Index limits are received in arbitrary order from the PEs.
587	CALL MPI_RECV( ind(1), 6, MPI_INTEGER, MPI_ANY_SOURCE, 0, &
588	comm2d, status, ierr )
589	!
590	!-- Not all PEs have data for the mask
591	IF ( ind(1) /= -9999 ) THEN
592	ngp = ( ind(2)-ind(1)+1 ) * (ind(4)-ind(3)+1 ) * &
593	( ind(6)-ind(5)+1 )
594	sender = status(MPI_SOURCE)
595	DEALLOCATE( local_pf )
596	ALLOCATE(local_pf(ind(1):ind(2),ind(3):ind(4),ind(5):ind(6)))
597	CALL MPI_RECV( local_pf(ind(1),ind(3),ind(5)), ngp, &
598	MPI_REAL, sender, 1, comm2d, status, ierr )
599	total_pf(ind(1):ind(2),ind(3):ind(4),ind(5):ind(6)) &
600	= local_pf
601	ENDIF
602	ENDDO
603
604	nc_stat = NF90_PUT_VAR( id_set_mask(mid,av), &
605	id_var_domask(mid,av,if), total_pf, &
606	start = (/ 1, 1, 1, domask_time_count(mid,av) /), &
607	count = (/ mask_size(mid,1), mask_size(mid,2), &
608	mask_size(mid,3), 1 /) )
609	CALL netcdf_handle_error( 'data_output_mask', 462 )
610
611	ELSE
612	!
613	!-- If at least part of the mask resides on the PE, send the index
614	!-- limits for the target array, otherwise send -9999 to PE0.
615	IF ( mask_size_l(mid,1) > 0 .AND. mask_size_l(mid,2) > 0 .AND. &
616	mask_size_l(mid,3) > 0 ) &
617	THEN
618	ind(1) = mask_start_l(mid,1)
619	ind(2) = mask_start_l(mid,1) + mask_size_l(mid,1) - 1
620	ind(3) = mask_start_l(mid,2)
621	ind(4) = mask_start_l(mid,2) + mask_size_l(mid,2) - 1
622	ind(5) = mask_start_l(mid,3)
623	ind(6) = mask_start_l(mid,3) + mask_size_l(mid,3) - 1
624	ELSE
625	ind(1) = -9999; ind(2) = -9999
626	ind(3) = -9999; ind(4) = -9999
627	ind(5) = -9999; ind(6) = -9999
628	ENDIF
629	CALL MPI_SEND( ind(1), 6, MPI_INTEGER, 0, 0, comm2d, ierr )
630	!
631	!-- If applicable, send data to PE0.
632	IF ( ind(1) /= -9999 ) THEN
633	CALL MPI_SEND( local_pf(1,1,1), ngp, MPI_REAL, 0, 1, comm2d, &
634	ierr )
635	ENDIF
636	ENDIF
637	!
638	!-- A barrier has to be set, because otherwise some PEs may proceed too
639	!-- fast so that PE0 may receive wrong data on tag 0.
640	CALL MPI_BARRIER( comm2d, ierr )
641	#if defined( __netcdf4_parallel )
642	ENDIF
643	#endif
644	#else
645	!
646	!-- (2) For serial execution of PALM, the single processor (PE0) holds all
647	!-- data and writes them directly to file.
648	nc_stat = NF90_PUT_VAR( id_set_mask(mid,av), &
649	id_var_domask(mid,av,if), &
650	local_pf, &
651	start = (/ 1, 1, 1, domask_time_count(mid,av) /), &
652	count = (/ mask_size_l(mid,1), mask_size_l(mid,2), &
653	mask_size_l(mid,3), 1 /) )
654	CALL netcdf_handle_error( 'data_output_mask', 463 )
655	#endif
656
657	if = if + 1
658
659	ENDDO
660
661	!
662	!-- Deallocate temporary arrays.
663	DEALLOCATE( local_pf )
664	#if defined( __parallel )
665	IF ( myid == 0 ) THEN
666	DEALLOCATE( total_pf )
667	ENDIF
668	#endif
669
670	!
671	!-- Switch back to original format given by user (see beginning of this routine)
672	netcdf_data_format = netcdf_data_format_save
673
674	CALL cpu_log( log_point(49), 'data_output_mask', 'stop' )
675	#endif
676
677	END SUBROUTINE data_output_mask

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