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source: palm/trunk/SOURCE/data_output_mask.f90 @ 1621

Last change on this file since 1621 was 1586, checked in by maronga, 10 years ago
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[1320]	1	SUBROUTINE data_output_mask( av )
	2
	3	!--------------------------------------------------------------------------------!
	4	! This file is part of PALM.
	5	!
	6	! PALM is free software: you can redistribute it and/or modify it under the terms
	7	! of the GNU General Public License as published by the Free Software Foundation,
	8	! either version 3 of the License, or (at your option) any later 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 1997-2014 Leibniz Universitaet Hannover
	18	!--------------------------------------------------------------------------------!
	19	!
	20	! Current revisions:
	21	! -----------------
[1586]	22	!
	23	!
[1320]	24	! Former revisions:
	25	! -----------------
	26	! $Id: data_output_mask.f90 1586 2015-04-30 07:11:33Z heinze $
	27	!
[1586]	28	! 1585 2015-04-30 07:05:52Z maronga
	29	! Added support for RRTMG
	30	!
[1585]	31	! 1438 2014-07-22 14:14:06Z heinze
[1439]	32	! +nr, qc, qr
	33	!
[1438]	34	! 1359 2014-04-11 17:15:14Z hoffmann
[1360]	35	! New particle structure integrated.
	36	!
[1359]	37	! 1353 2014-04-08 15:21:23Z heinze
[1354]	38	! REAL constants provided with KIND-attribute
	39	!
[1353]	40	! 1327 2014-03-21 11:00:16Z raasch
[1329]	41	!
	42	!
[1321]	43	! 1320 2014-03-20 08:40:49Z raasch
	44	! ONLY-attribute added to USE-statements,
	45	! kind-parameters added to all INTEGER and REAL declaration statements,
	46	! kinds are defined in new module kinds,
	47	! revision history before 2012 removed,
	48	! comment fields (!:) to be used for variable explanations added to
	49	! all variable declaration statements
	50	!
[1320]	51	! 1318 2014-03-17 13:35:16Z raasch
	52	! barrier argument removed from cpu_log,
	53	! module interfaces removed
	54	!
	55	! 1092 2013-02-02 11:24:22Z raasch
	56	! unused variables removed
	57	!
	58	! 1036 2012-10-22 13:43:42Z raasch
	59	! code put under GPL (PALM 3.9)
	60	!
	61	! 1031 2012-10-19 14:35:30Z raasch
	62	! netCDF4 without parallel file support implemented
	63	!
	64	! 1007 2012-09-19 14:30:36Z franke
	65	! Bugfix: calculation of pr must depend on the particle weighting factor,
	66	! missing calculation of ql_vp added
	67	!
	68	! 410 2009-12-04 17:05:40Z letzel
	69	! Initial version
	70	!
	71	! Description:
	72	! ------------
	73	! Masked data output in netCDF format for current mask (current value of mid).
	74	!------------------------------------------------------------------------------!
	75
	76	#if defined( __netcdf )
	77	USE arrays_3d, &
[1438]	78	ONLY: e, nr, p, pt, q, qc, ql, ql_c, ql_v, qr, rho, sa, tend, u, &
	79	v, vpt, w
[1320]	80
	81	USE averaging, &
[1438]	82	ONLY: e_av, lpt_av, nr_av, p_av, pc_av, pr_av, pt_av, q_av, qc_av, &
	83	ql_av, ql_c_av, ql_v_av, ql_vp_av, qv_av, qr_av, rho_av, s_av, &
	84	sa_av, u_av, v_av, vpt_av, w_av
[1320]	85
	86	USE cloud_parameters, &
	87	ONLY: l_d_cp, pt_d_t
	88
	89	USE control_parameters, &
[1438]	90	ONLY: cloud_physics, domask, domask_no, domask_time_count, &
	91	mask_i, mask_j, mask_k, mask_size, mask_size_l, &
	92	mask_start_l, max_masks, message_string, mid, &
	93	netcdf_data_format, nz_do3d, simulated_time
[1320]	94	USE cpulog, &
	95	ONLY: cpu_log, log_point
[1438]	96
	97
[1320]	98
	99	USE indices, &
	100	ONLY: nbgp, nxl, nxr, nyn, nys, nzb, nzt
	101
	102	USE kinds
	103
	104	USE netcdf
	105
	106	USE netcdf_control
	107
	108	USE particle_attributes, &
[1359]	109	ONLY: grid_particles, number_of_particles, particles, &
	110	particle_advection_start, prt_count
[1320]	111
	112	USE pegrid
	113
[1585]	114	USE radiation_model_mod, &
	115	ONLY: rad_lw_in, rad_lw_in_av, rad_lw_out, rad_lw_out_av, &
	116	rad_sw_in, rad_sw_in_av, rad_sw_out, rad_sw_out_av
	117
[1320]	118	IMPLICIT NONE
	119
	120	INTEGER(iwp) :: av !:
	121	INTEGER(iwp) :: ngp !:
	122	INTEGER(iwp) :: i !:
	123	INTEGER(iwp) :: if !:
	124	INTEGER(iwp) :: j !:
	125	INTEGER(iwp) :: k !:
	126	INTEGER(iwp) :: n !:
	127	INTEGER(iwp) :: psi !:
	128	INTEGER(iwp) :: sender !:
	129	INTEGER(iwp) :: ind(6) !:
	130
	131	LOGICAL :: found !:
	132	LOGICAL :: resorted !:
	133
	134	REAL(wp) :: mean_r !:
[1359]	135	REAL(wp) :: s_r2 !:
[1320]	136	REAL(wp) :: s_r3 !:
	137
	138	REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: local_pf !:
	139	#if defined( __parallel )
	140	REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: total_pf !:
	141	#endif
	142	REAL(wp), DIMENSION(:,:,:), POINTER :: to_be_resorted !:
	143
	144	!
	145	!-- Return, if nothing to output
	146	IF ( domask_no(mid,av) == 0 ) RETURN
	147
	148	CALL cpu_log (log_point(49),'data_output_mask','start')
	149
	150	!
	151	!-- Open output file.
[1327]	152	IF ( myid == 0 .OR. netcdf_data_format > 4 ) THEN
[1320]	153	CALL check_open( 200+mid+av*max_masks )
	154	ENDIF
	155
	156	!
	157	!-- Allocate total and local output arrays.
	158	#if defined( __parallel )
	159	IF ( myid == 0 ) THEN
	160	ALLOCATE( total_pf(mask_size(mid,1),mask_size(mid,2),mask_size(mid,3)) )
	161	ENDIF
	162	#endif
	163	ALLOCATE( local_pf(mask_size_l(mid,1),mask_size_l(mid,2), &
	164	mask_size_l(mid,3)) )
	165
	166	!
	167	!-- Update the netCDF time axis.
	168	domask_time_count(mid,av) = domask_time_count(mid,av) + 1
[1327]	169	IF ( myid == 0 .OR. netcdf_data_format > 4 ) THEN
[1320]	170	nc_stat = NF90_PUT_VAR( id_set_mask(mid,av), id_var_time_mask(mid,av), &
	171	(/ simulated_time /), &
	172	start = (/ domask_time_count(mid,av) /), &
	173	count = (/ 1 /) )
	174	CALL handle_netcdf_error( 'data_output_mask', 460 )
	175	ENDIF
	176
	177	!
	178	!-- Loop over all variables to be written.
	179	if = 1
	180
	181	DO WHILE ( domask(mid,av,if)(1:1) /= ' ' )
	182	!
	183	!-- Reallocate local_pf on PE 0 since its shape changes during MPI exchange
	184	IF ( netcdf_data_format < 5 .AND. myid == 0 .AND. if > 1 ) THEN
	185	DEALLOCATE( local_pf )
	186	ALLOCATE( local_pf(mask_size_l(mid,1),mask_size_l(mid,2), &
	187	mask_size_l(mid,3)) )
	188	ENDIF
	189	!
	190	!-- Store the variable chosen.
	191	resorted = .FALSE.
	192	SELECT CASE ( TRIM( domask(mid,av,if) ) )
	193
	194	CASE ( 'e' )
	195	IF ( av == 0 ) THEN
	196	to_be_resorted => e
	197	ELSE
	198	to_be_resorted => e_av
	199	ENDIF
	200
	201	CASE ( 'lpt' )
	202	IF ( av == 0 ) THEN
	203	to_be_resorted => pt
	204	ELSE
	205	to_be_resorted => lpt_av
	206	ENDIF
	207
[1438]	208	CASE ( 'nr' )
	209	IF ( av == 0 ) THEN
	210	to_be_resorted => nr
	211	ELSE
	212	to_be_resorted => nr_av
	213	ENDIF
	214
[1320]	215	CASE ( 'p' )
	216	IF ( av == 0 ) THEN
	217	to_be_resorted => p
	218	ELSE
	219	to_be_resorted => p_av
	220	ENDIF
	221
	222	CASE ( 'pc' ) ! particle concentration (requires ghostpoint exchange)
	223	IF ( av == 0 ) THEN
	224	tend = prt_count
	225	CALL exchange_horiz( tend, nbgp )
	226	DO i = 1, mask_size_l(mid,1)
	227	DO j = 1, mask_size_l(mid,2)
	228	DO k = 1, mask_size_l(mid,3)
	229	local_pf(i,j,k) = tend(mask_k(mid,k), &
	230	mask_j(mid,j),mask_i(mid,i))
	231	ENDDO
	232	ENDDO
	233	ENDDO
	234	resorted = .TRUE.
	235	ELSE
	236	CALL exchange_horiz( pc_av, nbgp )
	237	to_be_resorted => pc_av
	238	ENDIF
	239
[1359]	240	CASE ( 'pr' ) ! mean particle radius (effective radius)
[1320]	241	IF ( av == 0 ) THEN
[1359]	242	IF ( simulated_time >= particle_advection_start ) THEN
	243	DO i = nxl, nxr
	244	DO j = nys, nyn
	245	DO k = nzb, nz_do3d
	246	number_of_particles = prt_count(k,j,i)
	247	IF (number_of_particles <= 0) CYCLE
	248	particles => grid_particles(k,j,i)%particles(1:number_of_particles)
	249	s_r2 = 0.0_wp
	250	s_r3 = 0.0_wp
	251	DO n = 1, number_of_particles
	252	IF ( particles(n)%particle_mask ) THEN
	253	s_r2 = s_r2 + grid_particles(k,j,i)%particles(n)%radius*2 &
	254	grid_particles(k,j,i)%particles(n)%weight_factor
	255	s_r3 = s_r3 + grid_particles(k,j,i)%particles(n)%radius*3 &
	256	grid_particles(k,j,i)%particles(n)%weight_factor
	257	ENDIF
	258	ENDDO
	259	IF ( s_r2 > 0.0_wp ) THEN
	260	mean_r = s_r3 / s_r2
	261	ELSE
	262	mean_r = 0.0_wp
	263	ENDIF
	264	tend(k,j,i) = mean_r
[1320]	265	ENDDO
	266	ENDDO
	267	ENDDO
[1359]	268	CALL exchange_horiz( tend, nbgp )
	269	ELSE
	270	tend = 0.0_wp
	271	ENDIF
[1320]	272	DO i = 1, mask_size_l(mid,1)
	273	DO j = 1, mask_size_l(mid,2)
	274	DO k = 1, mask_size_l(mid,3)
	275	local_pf(i,j,k) = tend(mask_k(mid,k), &
	276	mask_j(mid,j),mask_i(mid,i))
	277	ENDDO
	278	ENDDO
	279	ENDDO
	280	resorted = .TRUE.
	281	ELSE
	282	CALL exchange_horiz( pr_av, nbgp )
	283	to_be_resorted => pr_av
	284	ENDIF
	285
	286	CASE ( 'pt' )
	287	IF ( av == 0 ) THEN
	288	IF ( .NOT. cloud_physics ) THEN
	289	to_be_resorted => pt
	290	ELSE
	291	DO i = 1, mask_size_l(mid,1)
	292	DO j = 1, mask_size_l(mid,2)
	293	DO k = 1, mask_size_l(mid,3)
	294	local_pf(i,j,k) = &
	295	pt(mask_k(mid,k),mask_j(mid,j),mask_i(mid,i)) &
	296	+ l_d_cp * pt_d_t(mask_k(mid,k)) * &
	297	ql(mask_k(mid,k),mask_j(mid,j),mask_i(mid,i))
	298	ENDDO
	299	ENDDO
	300	ENDDO
	301	resorted = .TRUE.
	302	ENDIF
	303	ELSE
	304	to_be_resorted => pt_av
	305	ENDIF
	306
	307	CASE ( 'q' )
	308	IF ( av == 0 ) THEN
	309	to_be_resorted => q
	310	ELSE
	311	to_be_resorted => q_av
	312	ENDIF
	313
[1438]	314	CASE ( 'qc' )
	315	IF ( av == 0 ) THEN
	316	to_be_resorted => qc
	317	ELSE
	318	to_be_resorted => qc_av
	319	ENDIF
	320
[1320]	321	CASE ( 'ql' )
	322	IF ( av == 0 ) THEN
	323	to_be_resorted => ql
	324	ELSE
	325	to_be_resorted => ql_av
	326	ENDIF
	327
	328	CASE ( 'ql_c' )
	329	IF ( av == 0 ) THEN
	330	to_be_resorted => ql_c
	331	ELSE
	332	to_be_resorted => ql_c_av
	333	ENDIF
	334
	335	CASE ( 'ql_v' )
	336	IF ( av == 0 ) THEN
	337	to_be_resorted => ql_v
	338	ELSE
	339	to_be_resorted => ql_v_av
	340	ENDIF
	341
	342	CASE ( 'ql_vp' )
	343	IF ( av == 0 ) THEN
[1359]	344	IF ( simulated_time >= particle_advection_start ) THEN
	345	DO i = nxl, nxr
	346	DO j = nys, nyn
	347	DO k = nzb, nz_do3d
	348	number_of_particles = prt_count(k,j,i)
	349	IF (number_of_particles <= 0) CYCLE
	350	particles => grid_particles(k,j,i)%particles(1:number_of_particles)
	351	DO n = 1, number_of_particles
	352	IF ( particles(n)%particle_mask ) THEN
	353	tend(k,j,i) = tend(k,j,i) + &
[1320]	354	particles(n)%weight_factor / &
	355	prt_count(k,j,i)
[1359]	356	ENDIF
	357	ENDDO
[1320]	358	ENDDO
	359	ENDDO
	360	ENDDO
[1359]	361	CALL exchange_horiz( tend, nbgp )
	362	ELSE
	363	tend = 0.0_wp
	364	ENDIF
[1320]	365	DO i = 1, mask_size_l(mid,1)
	366	DO j = 1, mask_size_l(mid,2)
	367	DO k = 1, mask_size_l(mid,3)
	368	local_pf(i,j,k) = tend(mask_k(mid,k), &
	369	mask_j(mid,j),mask_i(mid,i))
	370	ENDDO
	371	ENDDO
	372	ENDDO
	373	resorted = .TRUE.
	374	ELSE
	375	CALL exchange_horiz( ql_vp_av, nbgp )
	376	to_be_resorted => ql_vp_av
	377	ENDIF
	378
	379	CASE ( 'qv' )
	380	IF ( av == 0 ) THEN
	381	DO i = 1, mask_size_l(mid,1)
	382	DO j = 1, mask_size_l(mid,2)
	383	DO k = 1, mask_size_l(mid,3)
	384	local_pf(i,j,k) = &
	385	q(mask_k(mid,k),mask_j(mid,j),mask_i(mid,i)) - &
	386	ql(mask_k(mid,k),mask_j(mid,j),mask_i(mid,i))
	387	ENDDO
	388	ENDDO
	389	ENDDO
	390	resorted = .TRUE.
	391	ELSE
	392	to_be_resorted => qv_av
	393	ENDIF
	394
[1438]	395	CASE ( 'qr' )
	396	IF ( av == 0 ) THEN
	397	to_be_resorted => qr
	398	ELSE
	399	to_be_resorted => qr_av
	400	ENDIF
	401
[1585]	402	CASE ( 'rad_sw_in' )
	403	IF ( av == 0 ) THEN
	404	to_be_resorted => rad_sw_in
	405	ELSE
	406	to_be_resorted => rad_sw_in_av
	407	ENDIF
	408
	409	CASE ( 'rad_sw_out' )
	410	IF ( av == 0 ) THEN
	411	to_be_resorted => rad_sw_out
	412	ELSE
	413	to_be_resorted => rad_sw_out_av
	414	ENDIF
	415
	416	CASE ( 'rad_lw_in' )
	417	IF ( av == 0 ) THEN
	418	to_be_resorted => rad_lw_in
	419	ELSE
	420	to_be_resorted => rad_lw_in_av
	421	ENDIF
	422
	423	CASE ( 'rad_lw_out' )
	424	IF ( av == 0 ) THEN
	425	to_be_resorted => rad_lw_out
	426	ELSE
	427	to_be_resorted => rad_lw_out_av
	428	ENDIF
	429
[1320]	430	CASE ( 'rho' )
	431	IF ( av == 0 ) THEN
	432	to_be_resorted => rho
	433	ELSE
	434	to_be_resorted => rho_av
	435	ENDIF
	436
	437	CASE ( 's' )
	438	IF ( av == 0 ) THEN
	439	to_be_resorted => q
	440	ELSE
	441	to_be_resorted => s_av
	442	ENDIF
	443
	444	CASE ( 'sa' )
	445	IF ( av == 0 ) THEN
	446	to_be_resorted => sa
	447	ELSE
	448	to_be_resorted => sa_av
	449	ENDIF
	450
	451	CASE ( 'u' )
	452	IF ( av == 0 ) THEN
	453	to_be_resorted => u
	454	ELSE
	455	to_be_resorted => u_av
	456	ENDIF
	457
	458	CASE ( 'v' )
	459	IF ( av == 0 ) THEN
	460	to_be_resorted => v
	461	ELSE
	462	to_be_resorted => v_av
	463	ENDIF
	464
	465	CASE ( 'vpt' )
	466	IF ( av == 0 ) THEN
	467	to_be_resorted => vpt
	468	ELSE
	469	to_be_resorted => vpt_av
	470	ENDIF
	471
	472	CASE ( 'w' )
	473	IF ( av == 0 ) THEN
	474	to_be_resorted => w
	475	ELSE
	476	to_be_resorted => w_av
	477	ENDIF
	478
	479	CASE DEFAULT
	480	!
	481	!-- User defined quantity
	482	CALL user_data_output_mask(av, domask(mid,av,if), found, local_pf )
	483	resorted = .TRUE.
	484
	485	IF ( .NOT. found ) THEN
	486	WRITE ( message_string, * ) 'no output available for: ', &
	487	TRIM( domask(mid,av,if) )
	488	CALL message( 'data_output_mask', 'PA0327', 0, 0, 0, 6, 0 )
	489	ENDIF
	490
	491	END SELECT
	492
	493	!
	494	!-- Resort the array to be output, if not done above
	495	IF ( .NOT. resorted ) THEN
	496	DO i = 1, mask_size_l(mid,1)
	497	DO j = 1, mask_size_l(mid,2)
	498	DO k = 1, mask_size_l(mid,3)
	499	local_pf(i,j,k) = to_be_resorted(mask_k(mid,k), &
	500	mask_j(mid,j),mask_i(mid,i))
	501	ENDDO
	502	ENDDO
	503	ENDDO
	504	ENDIF
	505
	506	!
	507	!-- I/O block. I/O methods are implemented
	508	!-- (1) for parallel execution
	509	!-- a. with netCDF 4 parallel I/O-enabled library
	510	!-- b. with netCDF 3 library
	511	!-- (2) for serial execution.
	512	!-- The choice of method depends on the correct setting of preprocessor
	513	!-- directives __parallel and __netcdf4_parallel as well as on the parameter
	514	!-- netcdf_data_format.
	515	#if defined( __parallel )
	516	#if defined( __netcdf4_parallel )
	517	IF ( netcdf_data_format > 4 ) THEN
	518	!
	519	!-- (1) a. Parallel I/O using netCDF 4 (not yet tested)
	520	nc_stat = NF90_PUT_VAR( id_set_mask(mid,av), &
	521	id_var_domask(mid,av,if), &
	522	local_pf, &
	523	start = (/ mask_start_l(mid,1), mask_start_l(mid,2), &
	524	mask_start_l(mid,3), domask_time_count(mid,av) /), &
	525	count = (/ mask_size_l(mid,1), mask_size_l(mid,2), &
	526	mask_size_l(mid,3), 1 /) )
	527	CALL handle_netcdf_error( 'data_output_mask', 461 )
	528	ELSE
	529	#endif
	530	!
	531	!-- (1) b. Conventional I/O only through PE0
	532	!-- PE0 receives partial arrays from all processors of the respective mask
	533	!-- and outputs them. Here a barrier has to be set, because otherwise
	534	!-- "-MPI- FATAL: Remote protocol queue full" may occur.
	535	CALL MPI_BARRIER( comm2d, ierr )
	536
	537	ngp = mask_size_l(mid,1) * mask_size_l(mid,2) * mask_size_l(mid,3)
	538	IF ( myid == 0 ) THEN
	539	!
	540	!-- Local array can be relocated directly.
	541	total_pf( &
	542	mask_start_l(mid,1):mask_start_l(mid,1)+mask_size_l(mid,1)-1, &
	543	mask_start_l(mid,2):mask_start_l(mid,2)+mask_size_l(mid,2)-1, &
	544	mask_start_l(mid,3):mask_start_l(mid,3)+mask_size_l(mid,3)-1 ) &
	545	= local_pf
	546	!
	547	!-- Receive data from all other PEs.
	548	DO n = 1, numprocs-1
	549	!
	550	!-- Receive index limits first, then array.
	551	!-- Index limits are received in arbitrary order from the PEs.
	552	CALL MPI_RECV( ind(1), 6, MPI_INTEGER, MPI_ANY_SOURCE, 0, &
	553	comm2d, status, ierr )
	554	!
	555	!-- Not all PEs have data for the mask
	556	IF ( ind(1) /= -9999 ) THEN
	557	ngp = ( ind(2)-ind(1)+1 ) * (ind(4)-ind(3)+1 ) * &
	558	( ind(6)-ind(5)+1 )
	559	sender = status(MPI_SOURCE)
	560	DEALLOCATE( local_pf )
	561	ALLOCATE(local_pf(ind(1):ind(2),ind(3):ind(4),ind(5):ind(6)))
	562	CALL MPI_RECV( local_pf(ind(1),ind(3),ind(5)), ngp, &
	563	MPI_REAL, sender, 1, comm2d, status, ierr )
	564	total_pf(ind(1):ind(2),ind(3):ind(4),ind(5):ind(6)) &
	565	= local_pf
	566	ENDIF
	567	ENDDO
	568
	569	nc_stat = NF90_PUT_VAR( id_set_mask(mid,av), &
	570	id_var_domask(mid,av,if), total_pf, &
	571	start = (/ 1, 1, 1, domask_time_count(mid,av) /), &
	572	count = (/ mask_size(mid,1), mask_size(mid,2), &
	573	mask_size(mid,3), 1 /) )
	574	CALL handle_netcdf_error( 'data_output_mask', 462 )
	575
	576	ELSE
	577	!
	578	!-- If at least part of the mask resides on the PE, send the index
	579	!-- limits for the target array, otherwise send -9999 to PE0.
	580	IF ( mask_size_l(mid,1) > 0 .AND. mask_size_l(mid,2) > 0 .AND. &
	581	mask_size_l(mid,3) > 0 ) &
	582	THEN
	583	ind(1) = mask_start_l(mid,1)
	584	ind(2) = mask_start_l(mid,1) + mask_size_l(mid,1) - 1
	585	ind(3) = mask_start_l(mid,2)
	586	ind(4) = mask_start_l(mid,2) + mask_size_l(mid,2) - 1
	587	ind(5) = mask_start_l(mid,3)
	588	ind(6) = mask_start_l(mid,3) + mask_size_l(mid,3) - 1
	589	ELSE
	590	ind(1) = -9999; ind(2) = -9999
	591	ind(3) = -9999; ind(4) = -9999
	592	ind(5) = -9999; ind(6) = -9999
	593	ENDIF
	594	CALL MPI_SEND( ind(1), 6, MPI_INTEGER, 0, 0, comm2d, ierr )
	595	!
	596	!-- If applicable, send data to PE0.
	597	IF ( ind(1) /= -9999 ) THEN
	598	CALL MPI_SEND( local_pf(1,1,1), ngp, MPI_REAL, 0, 1, comm2d, &
	599	ierr )
	600	ENDIF
	601	ENDIF
	602	!
	603	!-- A barrier has to be set, because otherwise some PEs may proceed too
	604	!-- fast so that PE0 may receive wrong data on tag 0.
	605	CALL MPI_BARRIER( comm2d, ierr )
	606	#if defined( __netcdf4_parallel )
	607	ENDIF
	608	#endif
	609	#else
	610	!
	611	!-- (2) For serial execution of PALM, the single processor (PE0) holds all
	612	!-- data and writes them directly to file.
	613	nc_stat = NF90_PUT_VAR( id_set_mask(mid,av), &
	614	id_var_domask(mid,av,if), &
	615	local_pf, &
	616	start = (/ 1, 1, 1, domask_time_count(mid,av) /), &
	617	count = (/ mask_size_l(mid,1), mask_size_l(mid,2), &
	618	mask_size_l(mid,3), 1 /) )
	619	CALL handle_netcdf_error( 'data_output_mask', 463 )
	620	#endif
	621
	622	if = if + 1
	623
	624	ENDDO
	625
	626	!
	627	!-- Deallocate temporary arrays.
	628	DEALLOCATE( local_pf )
	629	#if defined( __parallel )
	630	IF ( myid == 0 ) THEN
	631	DEALLOCATE( total_pf )
	632	ENDIF
	633	#endif
	634
	635
	636	CALL cpu_log( log_point(49), 'data_output_mask', 'stop' )
	637	#endif
	638
	639	END SUBROUTINE data_output_mask

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