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source: palm/trunk/SOURCE/time_integration.f90 @ 1762

Last change on this file since 1762 was 1762, checked in by hellstea, 8 years ago
Introduction of nested domain system
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[1682]	1	!> @file time_integration.f90
[1036]	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	!
[1691]	16	! Copyright 1997-2015 Leibniz Universitaet Hannover
[1036]	17	!--------------------------------------------------------------------------------!
	18	!
[484]	19	! Current revisions:
[1092]	20	! ------------------
[1762]	21	! Introduction of nested domain feature
[1737]	22	!
[1366]	23	! Former revisions:
	24	! -----------------
	25	! $Id: time_integration.f90 1762 2016-02-25 12:31:13Z hellstea $
	26	!
[1737]	27	! 1736 2015-12-04 08:56:33Z raasch
	28	! no perturbations added to total domain if energy limit has been set zero
	29	!
[1692]	30	! 1691 2015-10-26 16:17:44Z maronga
	31	! Added option for spin-ups without land surface and radiation models. Moved calls
	32	! for radiation and lan surface schemes.
	33	!
[1683]	34	! 1682 2015-10-07 23:56:08Z knoop
	35	! Code annotations made doxygen readable
	36	!
[1672]	37	! 1671 2015-09-25 03:29:37Z raasch
	38	! bugfix: ghostpoint exchange for array diss in case that sgs velocities are used
	39	! for particles
	40	!
[1586]	41	! 1585 2015-04-30 07:05:52Z maronga
	42	! Moved call of radiation scheme. Added support for RRTM
	43	!
[1552]	44	! 1551 2015-03-03 14:18:16Z maronga
	45	! Added interface for different radiation schemes.
	46	!
[1497]	47	! 1496 2014-12-02 17:25:50Z maronga
	48	! Added calls for the land surface model and radiation scheme
	49	!
[1403]	50	! 1402 2014-05-09 14:25:13Z raasch
	51	! location messages modified
	52	!
[1385]	53	! 1384 2014-05-02 14:31:06Z raasch
	54	! location messages added
	55	!
[1381]	56	! 1380 2014-04-28 12:40:45Z heinze
	57	! CALL of nudge_ref added
	58	! bc_pt_t_val and bc_q_t_val are updated in case nudging is used
	59	!
[1366]	60	! 1365 2014-04-22 15:03:56Z boeske
[1365]	61	! Reset sums_ls_l to zero at each timestep
	62	! +sums_ls_l
	63	! Calculation of reference state (previously in subroutine calc_mean_profile)
	64
[1343]	65	! 1342 2014-03-26 17:04:47Z kanani
	66	! REAL constants defined as wp-kind
	67	!
[1321]	68	! 1320 2014-03-20 08:40:49Z raasch
[1320]	69	! ONLY-attribute added to USE-statements,
	70	! kind-parameters added to all INTEGER and REAL declaration statements,
	71	! kinds are defined in new module kinds,
	72	! old module precision_kind is removed,
	73	! revision history before 2012 removed,
	74	! comment fields (!:) to be used for variable explanations added to
	75	! all variable declaration statements
[1319]	76	! 1318 2014-03-17 13:35:16Z raasch
	77	! module interfaces removed
	78	!
[1309]	79	! 1308 2014-03-13 14:58:42Z fricke
	80	! +netcdf_data_format_save
	81	! For masked data, parallel netcdf output is not tested so far, hence
	82	! netcdf_data_format is switched back to non-paralell output.
	83	!
[1277]	84	! 1276 2014-01-15 13:40:41Z heinze
	85	! Use LSF_DATA also in case of Dirichlet bottom boundary condition for scalars
	86	!
[1258]	87	! 1257 2013-11-08 15:18:40Z raasch
	88	! acc-update-host directive for timestep removed
	89	!
[1242]	90	! 1241 2013-10-30 11:36:58Z heinze
	91	! Generalize calc_mean_profile for wider use
	92	! Determine shf and qsws in dependence on data from LSF_DATA
	93	! Determine ug and vg in dependence on data from LSF_DATA
[1222]	94	! 1221 2013-09-10 08:59:13Z raasch
	95	! host update of arrays before timestep is called
	96	!
[1182]	97	! 1179 2013-06-14 05:57:58Z raasch
	98	! mean profiles for reference state are only calculated if required,
	99	! small bugfix for background communication
	100	!
[1172]	101	! 1171 2013-05-30 11:27:45Z raasch
	102	! split of prognostic_equations deactivated (comment lines), for the time being
	103	!
[1132]	104	! 1128 2013-04-12 06:19:32Z raasch
[1128]	105	! asynchronous transfer of ghost point data realized for acc-optimized version:
	106	! prognostic_equations are first called two times for those points required for
	107	! the left-right and north-south exchange, respectively, and then for the
	108	! remaining points,
	109	! those parts requiring global communication moved from prognostic_equations to
	110	! here
[392]	111	!
[1116]	112	! 1115 2013-03-26 18:16:16Z hoffmann
	113	! calculation of qr and nr is restricted to precipitation
	114	!
[1114]	115	! 1113 2013-03-10 02:48:14Z raasch
	116	! GPU-porting of boundary conditions,
	117	! openACC directives updated
	118	! formal parameter removed from routine boundary_conds
	119	!
[1112]	120	! 1111 2013-03-08 23:54:10Z raasch
	121	! +internal timestep counter for cpu statistics added,
	122	! openACC directives updated
	123	!
[1093]	124	! 1092 2013-02-02 11:24:22Z raasch
	125	! unused variables removed
	126	!
[1066]	127	! 1065 2012-11-22 17:42:36Z hoffmann
	128	! exchange of diss (dissipation rate) in case of turbulence = .TRUE. added
	129	!
[1054]	130	! 1053 2012-11-13 17:11:03Z hoffmann
	131	! exchange of ghost points for nr, qr added
	132	!
[1037]	133	! 1036 2012-10-22 13:43:42Z raasch
	134	! code put under GPL (PALM 3.9)
	135	!
[1020]	136	! 1019 2012-09-28 06:46:45Z raasch
	137	! non-optimized version of prognostic_equations removed
	138	!
[1017]	139	! 1015 2012-09-27 09:23:24Z raasch
	140	! +call of prognostic_equations_acc
	141	!
[1002]	142	! 1001 2012-09-13 14:08:46Z raasch
	143	! all actions concerning leapfrog- and upstream-spline-scheme removed
	144	!
[850]	145	! 849 2012-03-15 10:35:09Z raasch
	146	! advec_particles renamed lpm, first_call_advec_particles renamed first_call_lpm
	147	!
[826]	148	! 825 2012-02-19 03:03:44Z raasch
	149	! wang_collision_kernel renamed wang_kernel
	150	!
[1]	151	! Revision 1.1 1997/08/11 06:19:04 raasch
	152	! Initial revision
	153	!
	154	!
	155	! Description:
	156	! ------------
[1682]	157	!> Integration in time of the model equations, statistical analysis and graphic
	158	!> output
[1]	159	!------------------------------------------------------------------------------!
[1682]	160	SUBROUTINE time_integration
	161
[1]	162
[1320]	163	USE advec_ws, &
	164	ONLY: ws_statistics
	165
	166	USE arrays_3d, &
[1762]	167	ONLY: diss, dzu, e, e_p, nr_p, prho, pt, pt_p, pt_init, q_init, q, &
	168	ql, ql_c, ql_v, ql_vp, qr_p, q_p, ref_state, rho, sa_p, tend, &
	169	u, u_p, v, vpt, v_p, w, w_p
[1320]	170
[1365]	171	USE calc_mean_profile_mod, &
[1320]	172	ONLY: calc_mean_profile
	173
	174	USE control_parameters, &
	175	ONLY: advected_distance_x, advected_distance_y, average_count_3d, &
	176	average_count_sp, averaging_interval, averaging_interval_pr, &
[1380]	177	averaging_interval_sp, bc_lr_cyc, bc_ns_cyc, bc_pt_t_val, &
	178	bc_q_t_val, call_psolver_at_all_substeps, cloud_droplets, &
[1691]	179	cloud_physics, constant_flux_layer, constant_heatflux, &
	180	create_disturbances, dopr_n, constant_diffusion, coupling_mode, &
	181	coupling_start_time, current_timestep_number, &
	182	disturbance_created, disturbance_energy_limit, dist_range, &
	183	do_sum, dt_3d, dt_averaging_input, dt_averaging_input_pr, &
	184	dt_coupling, dt_data_output_av, dt_disturb, dt_do2d_xy, &
	185	dt_do2d_xz, dt_do2d_yz, dt_do3d, dt_domask,dt_dopts, dt_dopr, &
[1320]	186	dt_dopr_listing, dt_dosp, dt_dots, dt_dvrp, dt_run_control, &
	187	end_time, first_call_lpm, galilei_transformation, humidity, &
	188	icloud_scheme, intermediate_timestep_count, &
	189	intermediate_timestep_count_max, large_scale_forcing, &
[1762]	190	loop_optimization, lsf_surf, lsf_vert, masks, mid, nest_domain, &
[1365]	191	netcdf_data_format, neutral, nr_timesteps_this_run, nudging, &
[1691]	192	ocean, on_device, passive_scalar, precipitation, &
[1320]	193	prho_reference, pt_reference, pt_slope_offset, random_heatflux, &
	194	run_coupled, simulated_time, simulated_time_chr, &
	195	skip_time_do2d_xy, skip_time_do2d_xz, skip_time_do2d_yz, &
	196	skip_time_do3d, skip_time_domask, skip_time_dopr, &
	197	skip_time_dosp, skip_time_data_output_av, sloping_surface, &
	198	stop_dt, terminate_coupled, terminate_run, timestep_scheme, &
	199	time_coupling, time_do2d_xy, time_do2d_xz, time_do2d_yz, &
	200	time_do3d, time_domask, time_dopr, time_dopr_av, &
	201	time_dopr_listing, time_dopts, time_dosp, time_dosp_av, &
	202	time_dots, time_do_av, time_do_sla, time_disturb, time_dvrp, &
[1496]	203	time_run_control, time_since_reference_point, &
	204	turbulence, &
[1320]	205	turbulent_inflow, use_initial_profile_as_reference, &
	206	use_single_reference_value, u_gtrans, v_gtrans, ws_scheme_mom, &
	207	ws_scheme_sca
	208
	209	USE cpulog, &
	210	ONLY: cpu_log, log_point, log_point_s
	211
	212	USE indices, &
	213	ONLY: i_left, i_right, j_north, j_south, nbgp, nx, nxl, nxlg, nxr, &
[1380]	214	nxrg, nyn, nys, nzb, nzt, nzb_u_inner, nzb_v_inner
[1320]	215
	216	USE interaction_droplets_ptq_mod, &
	217	ONLY: interaction_droplets_ptq
	218
	219	USE kinds
	220
[1496]	221	USE land_surface_model_mod, &
[1691]	222	ONLY: land_surface, lsm_energy_balance, lsm_soil_model, &
	223	skip_time_do_lsm
[1496]	224
[1320]	225	USE ls_forcing_mod, &
	226	ONLY: ls_forcing_surf, ls_forcing_vert
	227
[1365]	228	USE nudge_mod, &
[1380]	229	ONLY: calc_tnudge, nudge_ref
[1365]	230
[1320]	231	USE particle_attributes, &
[1671]	232	ONLY: particle_advection, particle_advection_start, &
	233	use_sgs_for_particles, wang_kernel
[1320]	234
[1]	235	USE pegrid
	236
[1762]	237	#if defined( PMC_ACTIVE )
	238	USE pmc_interface, &
	239	ONLY: client_to_server, nesting_mode, &
	240	pmci_ensure_nest_mass_conservation, pmci_client_datatrans, &
	241	pmci_client_initialize, pmci_client_synchronize, &
	242	pmci_server_datatrans, pmci_server_initialize, &
	243	pmci_server_synchronize, pmci_update_new, server_to_client
	244	#endif
	245
[1320]	246	USE production_e_mod, &
	247	ONLY: production_e_init
	248
[1402]	249	USE progress_bar, &
	250	ONLY: finish_progress_bar, output_progress_bar
	251
[1320]	252	USE prognostic_equations_mod, &
	253	ONLY: prognostic_equations_acc, prognostic_equations_cache, &
	254	prognostic_equations_vector
	255
[1496]	256	USE radiation_model_mod, &
[1691]	257	ONLY: dt_radiation, force_radiation_call, radiation, &
	258	radiation_clearsky, radiation_rrtmg, radiation_scheme, &
	259	skip_time_do_radiation, time_radiation
[1496]	260
[1320]	261	USE statistics, &
[1365]	262	ONLY: flow_statistics_called, hom, pr_palm, sums_ls_l
[1320]	263
[1691]	264	USE surface_layer_fluxes_mod, &
	265	ONLY: surface_layer_fluxes
	266
[1320]	267	USE user_actions_mod, &
	268	ONLY: user_actions
	269
[1]	270	IMPLICIT NONE
	271
[1682]	272	CHARACTER (LEN=9) :: time_to_string !<
[1]	273
[1682]	274	INTEGER(iwp) :: netcdf_data_format_save !<
[1320]	275
[1]	276	!
	277	!-- At the beginning of a simulation determine the time step as well as
	278	!-- determine and print out the run control parameters
[1342]	279	IF ( simulated_time == 0.0_wp ) CALL timestep
[667]	280
[1]	281	CALL run_control
	282
[667]	283
[108]	284	!
	285	!-- Data exchange between coupled models in case that a call has been omitted
	286	!-- at the end of the previous run of a job chain.
[291]	287	IF ( coupling_mode /= 'uncoupled' .AND. run_coupled ) THEN
[108]	288	!
	289	!-- In case of model termination initiated by the local model the coupler
	290	!-- must not be called because this would again cause an MPI hang.
	291	DO WHILE ( time_coupling >= dt_coupling .AND. terminate_coupled == 0 )
	292	CALL surface_coupler
	293	time_coupling = time_coupling - dt_coupling
	294	ENDDO
[1342]	295	IF (time_coupling == 0.0_wp .AND. time_since_reference_point < dt_coupling)&
[348]	296	THEN
	297	time_coupling = time_since_reference_point
	298	ENDIF
[108]	299	ENDIF
	300
[1762]	301	#if defined( PMC_ACTIVE )
	302	!
	303	!-- TO_DO: try to give more meaningful comments here
	304	!-- Domain nesting: From server to client commmunication
	305	!-- ( direction=SERVER_TO_CLIENT )
	306	!-- Nest initial conditions
	307	!
	308	!-- Send initial condition data from server to client
	309	CALL pmci_server_initialize
	310	!
	311	!-- Receive and interpolate initial data on client
	312	CALL pmci_client_initialize
	313	!
	314	!-- TO_DO, maybe removed
	315	!-- Obs. Nesting may be unnecessary at this point.
	316	!
	317	!-- Nest boundary conditions
	318	CALL pmci_server_datatrans( server_to_client )
	319	CALL pmci_client_datatrans( server_to_client )
[108]	320
[1762]	321	IF ( nesting_mode == 'two-way' ) THEN
	322	CALL pmci_server_datatrans( client_to_server )
	323	CALL pmci_client_datatrans( client_to_server )
	324	!
	325	!-- Exchange_horiz is needed for all server-domains after the anterpolation
	326	CALL exchange_horiz( u, nbgp )
	327	CALL exchange_horiz( v, nbgp )
	328	CALL exchange_horiz( w, nbgp )
	329	CALL exchange_horiz( pt, nbgp )
	330	IF ( .NOT. constant_diffusion ) CALL exchange_horiz( e, nbgp )
	331	intermediate_timestep_count = 0
	332	CALL pres
	333	ENDIF
	334	!
	335	!-- Correct the w top-BC in nest domains to ensure mass conservation.
	336	!-- Copy the interpolated/anterpolated boundary values to the _p
	337	!-- arrays, too, to make sure the interpolated/anterpolated boundary
	338	!-- values are carried over from one RK inner step to another.
	339	!-- These actions must not be done for the root domain.
	340	IF ( nest_domain ) THEN
	341	CALL pmci_ensure_nest_mass_conservation
	342	CALL pmci_update_new
	343	ENDIF
	344	#endif
	345
[1]	346	#if defined( __dvrp_graphics )
	347	!
	348	!-- Time measurement with dvrp software
	349	CALL DVRP_LOG_EVENT( 2, current_timestep_number )
	350	#endif
	351
[1402]	352	CALL location_message( 'start with time-stepping', .TRUE. )
[1]	353	!
	354	!-- Start of the time loop
	355	DO WHILE ( simulated_time < end_time .AND. .NOT. stop_dt .AND. &
	356	.NOT. terminate_run )
	357
	358	CALL cpu_log( log_point_s(10), 'timesteps', 'start' )
[1221]	359
[1]	360	!
	361	!-- Determine size of next time step
[1342]	362	IF ( simulated_time /= 0.0_wp ) THEN
[1221]	363	CALL timestep
[1762]	364
	365	#if defined( PMC_ACTIVE )
	366	!
	367	!-- TO_DO: try to give more detailed and meaningful comments here
	368	!-- Server side must be called first
	369	CALL pmci_server_synchronize
	370	CALL pmci_client_synchronize
	371	#endif
[1221]	372	ENDIF
	373
[1762]	374
[1]	375	!
[1241]	376	!-- Determine ug, vg and w_subs in dependence on data from external file
	377	!-- LSF_DATA
[1365]	378	IF ( large_scale_forcing .AND. lsf_vert ) THEN
[1241]	379	CALL ls_forcing_vert ( simulated_time )
[1365]	380	sums_ls_l = 0.0_wp
[1241]	381	ENDIF
	382
	383	!
[1380]	384	!-- Set pt_init and q_init to the current profiles taken from
	385	!-- NUDGING_DATA
	386	IF ( nudging ) THEN
	387	CALL nudge_ref ( simulated_time )
	388	!
	389	!-- Store temperature gradient at the top boundary for possible Neumann
	390	!-- boundary condition
	391	bc_pt_t_val = ( pt_init(nzt+1) - pt_init(nzt) ) / dzu(nzt+1)
	392	bc_q_t_val = ( q_init(nzt+1) - q_init(nzt) ) / dzu(nzt+1)
	393	ENDIF
	394
	395	!
[1]	396	!-- Execute the user-defined actions
	397	CALL user_actions( 'before_timestep' )
	398
	399	!
	400	!-- Start of intermediate step loop
	401	intermediate_timestep_count = 0
	402	DO WHILE ( intermediate_timestep_count < &
	403	intermediate_timestep_count_max )
	404
	405	intermediate_timestep_count = intermediate_timestep_count + 1
	406
	407	!
	408	!-- Set the steering factors for the prognostic equations which depend
	409	!-- on the timestep scheme
	410	CALL timestep_scheme_steering
	411
	412	!
[1128]	413	!-- Calculate those variables needed in the tendency terms which need
	414	!-- global communication
[1179]	415	IF ( .NOT. use_single_reference_value .AND. &
	416	.NOT. use_initial_profile_as_reference ) THEN
	417	!
	418	!-- Horizontally averaged profiles to be used as reference state in
	419	!-- buoyancy terms (WARNING: only the respective last call of
	420	!-- calc_mean_profile defines the reference state!)
[1365]	421	IF ( .NOT. neutral ) THEN
	422	CALL calc_mean_profile( pt, 4 )
	423	ref_state(:) = hom(:,1,4,0) ! this is used in the buoyancy term
	424	ENDIF
	425	IF ( ocean ) THEN
	426	CALL calc_mean_profile( rho, 64 )
	427	ref_state(:) = hom(:,1,64,0)
	428	ENDIF
	429	IF ( humidity ) THEN
	430	CALL calc_mean_profile( vpt, 44 )
	431	ref_state(:) = hom(:,1,44,0)
	432	ENDIF
	433
[1179]	434	ENDIF
	435
[1128]	436	IF ( .NOT. constant_diffusion ) CALL production_e_init
	437	IF ( ( ws_scheme_mom .OR. ws_scheme_sca ) .AND. &
	438	intermediate_timestep_count == 1 ) CALL ws_statistics
[1365]	439	!
	440	!-- In case of nudging calculate current nudging time scale and horizontal
[1380]	441	!-- means of u, v, pt and q
[1365]	442	IF ( nudging ) THEN
	443	CALL calc_tnudge( simulated_time )
	444	CALL calc_mean_profile( u, 1 )
	445	CALL calc_mean_profile( v, 2 )
	446	CALL calc_mean_profile( pt, 4 )
	447	CALL calc_mean_profile( q, 41 )
	448	ENDIF
[1128]	449
	450	!
[1]	451	!-- Solve the prognostic equations. A fast cache optimized version with
	452	!-- only one single loop is used in case of Piascek-Williams advection
	453	!-- scheme. NEC vector machines use a different version, because
	454	!-- in the other versions a good vectorization is prohibited due to
	455	!-- inlining problems.
[1019]	456	IF ( loop_optimization == 'cache' ) THEN
	457	CALL prognostic_equations_cache
	458	ELSEIF ( loop_optimization == 'vector' ) THEN
[63]	459	CALL prognostic_equations_vector
[1015]	460	ELSEIF ( loop_optimization == 'acc' ) THEN
[1171]	461	i_left = nxl; i_right = nxr
	462	j_south = nys; j_north = nyn
	463	CALL prognostic_equations_acc
	464
	465	! i_left = nxl; i_right = nxl+nbgp-1
[1128]	466	! j_south = nys; j_north = nyn
	467	! CALL prognostic_equations_acc
[1171]	468	! i_left = nxr-nbgp+1; i_right = nxr
	469	! j_south = nys; j_north = nyn
	470	! CALL prognostic_equations_acc
[1128]	471
	472	!
	473	!-- Exchange of ghost points (lateral boundary conditions)
	474	IF ( background_communication ) THEN
	475
	476	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'start' )
	477
	478	send_receive = 'lr'
	479	sendrecv_in_background = .TRUE.
	480	req = 0
	481	req_count = 0
	482
	483	IF ( numprocs == 1 ) THEN ! workaround for single-core GPU runs
	484	on_device = .TRUE. ! to be removed after complete porting
	485	ELSE ! of ghost point exchange
	486	!$acc update host( e_p, pt_p, u_p, v_p, w_p )
	487	ENDIF
	488
	489	CALL exchange_horiz( u_p, nbgp )
	490	CALL exchange_horiz( v_p, nbgp )
	491	CALL exchange_horiz( w_p, nbgp )
	492	CALL exchange_horiz( pt_p, nbgp )
	493	IF ( .NOT. constant_diffusion ) CALL exchange_horiz( e_p, nbgp )
	494	IF ( ocean ) THEN
	495	CALL exchange_horiz( sa_p, nbgp )
	496	CALL exchange_horiz( rho, nbgp )
	497	CALL exchange_horiz( prho, nbgp )
	498	ENDIF
	499	IF (humidity .OR. passive_scalar) THEN
	500	CALL exchange_horiz( q_p, nbgp )
	501	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
	502	CALL exchange_horiz( qr_p, nbgp )
	503	CALL exchange_horiz( nr_p, nbgp )
	504	ENDIF
	505	ENDIF
	506	IF ( cloud_droplets ) THEN
	507	CALL exchange_horiz( ql, nbgp )
	508	CALL exchange_horiz( ql_c, nbgp )
	509	CALL exchange_horiz( ql_v, nbgp )
	510	CALL exchange_horiz( ql_vp, nbgp )
	511	ENDIF
[1671]	512	IF ( wang_kernel .OR. turbulence .OR. use_sgs_for_particles ) &
	513	THEN
	514	CALL exchange_horiz( diss, nbgp )
	515	ENDIF
[1128]	516
	517	IF ( numprocs == 1 ) THEN ! workaround for single-core GPU runs
	518	on_device = .FALSE. ! to be removed after complete porting
	519	ELSE ! of ghost point exchange
	520	!$acc update device( e_p, pt_p, u_p, v_p, w_p )
	521	ENDIF
	522
	523	sendrecv_in_background = .FALSE.
	524
	525	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'pause' )
	526
	527	ENDIF
	528
[1171]	529	! i_left = nxl+nbgp; i_right = nxr-nbgp
	530	! j_south = nys; j_north = nys+nbgp-1
	531	! CALL prognostic_equations_acc
	532	! i_left = nxl+nbgp; i_right = nxr-nbgp
	533	! j_south = nyn-nbgp+1; j_north = nyn
	534	! CALL prognostic_equations_acc
[1128]	535
	536	IF ( background_communication ) THEN
	537	CALL cpu_log( log_point(41), 'exchange-horiz-wait', 'start' )
	538	#if defined( __parallel )
	539	CALL MPI_WAITALL( req_count, req, wait_stat, ierr )
	540	#endif
	541	CALL cpu_log( log_point(41), 'exchange-horiz-wait', 'pause' )
	542
	543	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'continue' )
	544
	545	send_receive = 'ns'
	546	sendrecv_in_background = .TRUE.
	547	req = 0
	548	req_count = 0
	549
	550	IF ( numprocs == 1 ) THEN ! workaround for single-core GPU runs
	551	on_device = .TRUE. ! to be removed after complete porting
	552	ELSE ! of ghost point exchange
	553	!$acc update host( e_p, pt_p, u_p, v_p, w_p )
	554	ENDIF
	555
	556	CALL exchange_horiz( u_p, nbgp )
	557	CALL exchange_horiz( v_p, nbgp )
	558	CALL exchange_horiz( w_p, nbgp )
	559	CALL exchange_horiz( pt_p, nbgp )
	560	IF ( .NOT. constant_diffusion ) CALL exchange_horiz( e_p, nbgp )
	561	IF ( ocean ) THEN
	562	CALL exchange_horiz( sa_p, nbgp )
	563	CALL exchange_horiz( rho, nbgp )
	564	CALL exchange_horiz( prho, nbgp )
	565	ENDIF
	566	IF (humidity .OR. passive_scalar) THEN
	567	CALL exchange_horiz( q_p, nbgp )
	568	IF ( cloud_physics .AND. icloud_scheme == 0 ) THEN
	569	CALL exchange_horiz( qr_p, nbgp )
	570	CALL exchange_horiz( nr_p, nbgp )
	571	ENDIF
	572	ENDIF
	573	IF ( cloud_droplets ) THEN
	574	CALL exchange_horiz( ql, nbgp )
	575	CALL exchange_horiz( ql_c, nbgp )
	576	CALL exchange_horiz( ql_v, nbgp )
	577	CALL exchange_horiz( ql_vp, nbgp )
	578	ENDIF
[1671]	579	IF ( wang_kernel .OR. turbulence .OR. use_sgs_for_particles ) &
	580	THEN
	581	CALL exchange_horiz( diss, nbgp )
	582	ENDIF
[1128]	583
	584	IF ( numprocs == 1 ) THEN ! workaround for single-core GPU runs
	585	on_device = .FALSE. ! to be removed after complete porting
	586	ELSE ! of ghost point exchange
	587	!$acc update device( e_p, pt_p, u_p, v_p, w_p )
	588	ENDIF
	589
	590	sendrecv_in_background = .FALSE.
	591
	592	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'stop' )
	593
	594	ENDIF
	595
[1171]	596	! i_left = nxl+nbgp; i_right = nxr-nbgp
	597	! j_south = nys+nbgp; j_north = nyn-nbgp
	598	! CALL prognostic_equations_acc
[1128]	599
	600	IF ( background_communication ) THEN
	601	CALL cpu_log( log_point(41), 'exchange-horiz-wait', 'continue' )
	602	#if defined( __parallel )
	603	CALL MPI_WAITALL( req_count, req, wait_stat, ierr )
	604	#endif
	605	send_receive = 'al'
	606	CALL cpu_log( log_point(41), 'exchange-horiz-wait', 'stop' )
	607	ENDIF
	608
[1]	609	ENDIF
	610
	611	!
[849]	612	!-- Particle transport/physics with the Lagrangian particle model
	613	!-- (only once during intermediate steps, because it uses an Euler-step)
[1128]	614	!-- ### particle model should be moved before prognostic_equations, in order
	615	!-- to regard droplet interactions directly
[63]	616	IF ( particle_advection .AND. &
	617	simulated_time >= particle_advection_start .AND. &
[1]	618	intermediate_timestep_count == 1 ) THEN
[849]	619	CALL lpm
	620	first_call_lpm = .FALSE.
[1]	621	ENDIF
	622
	623	!
	624	!-- Interaction of droplets with temperature and specific humidity.
	625	!-- Droplet condensation and evaporation is calculated within
	626	!-- advec_particles.
	627	IF ( cloud_droplets .AND. &
	628	intermediate_timestep_count == intermediate_timestep_count_max )&
	629	THEN
	630	CALL interaction_droplets_ptq
	631	ENDIF
	632
	633	!
	634	!-- Exchange of ghost points (lateral boundary conditions)
[1128]	635	IF ( .NOT. background_communication ) THEN
[1113]	636
[1128]	637	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'start' )
[1113]	638
[1128]	639	IF ( numprocs == 1 ) THEN ! workaround for single-core GPU runs
	640	on_device = .TRUE. ! to be removed after complete porting
	641	ELSE ! of ghost point exchange
	642	!$acc update host( e_p, pt_p, u_p, v_p, w_p )
[1053]	643	ENDIF
[1]	644
[1128]	645	CALL exchange_horiz( u_p, nbgp )
	646	CALL exchange_horiz( v_p, nbgp )
	647	CALL exchange_horiz( w_p, nbgp )
	648	CALL exchange_horiz( pt_p, nbgp )
	649	IF ( .NOT. constant_diffusion ) CALL exchange_horiz( e_p, nbgp )
	650	IF ( ocean ) THEN
	651	CALL exchange_horiz( sa_p, nbgp )
	652	CALL exchange_horiz( rho, nbgp )
	653	CALL exchange_horiz( prho, nbgp )
	654	ENDIF
	655	IF (humidity .OR. passive_scalar) THEN
	656	CALL exchange_horiz( q_p, nbgp )
[1179]	657	IF ( cloud_physics .AND. icloud_scheme == 0 .AND. &
	658	precipitation ) THEN
[1128]	659	CALL exchange_horiz( qr_p, nbgp )
	660	CALL exchange_horiz( nr_p, nbgp )
	661	ENDIF
	662	ENDIF
	663	IF ( cloud_droplets ) THEN
	664	CALL exchange_horiz( ql, nbgp )
	665	CALL exchange_horiz( ql_c, nbgp )
	666	CALL exchange_horiz( ql_v, nbgp )
	667	CALL exchange_horiz( ql_vp, nbgp )
	668	ENDIF
[1671]	669	IF ( wang_kernel .OR. turbulence .OR. use_sgs_for_particles ) &
	670	THEN
	671	CALL exchange_horiz( diss, nbgp )
	672	ENDIF
[1128]	673
	674	IF ( numprocs == 1 ) THEN ! workaround for single-core GPU runs
	675	on_device = .FALSE. ! to be removed after complete porting
	676	ELSE ! of ghost point exchange
	677	!$acc update device( e_p, pt_p, u_p, v_p, w_p )
	678	ENDIF
	679
	680	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'stop' )
	681
[1113]	682	ENDIF
	683
[1]	684	!
	685	!-- Boundary conditions for the prognostic quantities (except of the
	686	!-- velocities at the outflow in case of a non-cyclic lateral wall)
[1113]	687	CALL boundary_conds
[1]	688
	689	!
[73]	690	!-- Swap the time levels in preparation for the next time step.
	691	CALL swap_timelevel
	692
[1762]	693	#if defined( PMC_ACTIVE )
[73]	694	!
[1762]	695	!-- TO_DO: try to give more meaningful comments here
	696	!-- Domain nesting
	697	!-- Note that the nesting operations are omitted intentionally on the
	698	!-- first two RK-substeps.
	699	CALL cpu_log( log_point(60), 'nesting', 'start' )
	700	!
	701	!-- From server to client commmunication ( direction=SERVER_TO_CLIENT )
	702	CALL pmci_server_datatrans( server_to_client )
	703	CALL pmci_client_datatrans( server_to_client )
	704
	705	IF ( nesting_mode == 'two-way' ) THEN
	706	!
	707	!-- From client to server commmunication ( direction=CLIENT_TO_SERVER )
	708	CALL pmci_server_datatrans( client_to_server )
	709	CALL pmci_client_datatrans( client_to_server )
	710	!
	711	!-- Exchange_horiz is needed for all server-domains after the
	712	!-- anterpolation
	713	CALL exchange_horiz( u, nbgp )
	714	CALL exchange_horiz( v, nbgp )
	715	CALL exchange_horiz( w, nbgp )
	716	CALL exchange_horiz( pt, nbgp )
	717	IF ( humidity .OR. passive_scalar ) THEN
	718	CALL exchange_horiz( q, nbgp )
	719	ENDIF
	720	IF ( .NOT. constant_diffusion ) CALL exchange_horiz( e, nbgp )
	721	ENDIF
	722	!
	723	!-- Correct the w top-BC in nest domains to ensure mass conservation.
	724	!-- This action must never be done for the root domain.
	725	IF ( nest_domain ) THEN
	726	CALL pmci_ensure_nest_mass_conservation
	727	!
	728	!-- pmc_update_new is not necessary if nesting is made at each substep.
	729	CALL pmci_update_new
	730	ENDIF
	731
	732	CALL cpu_log( log_point(60), 'nesting', 'stop' )
	733	#endif
	734
	735	!
[1]	736	!-- Temperature offset must be imposed at cyclic boundaries in x-direction
	737	!-- when a sloping surface is used
	738	IF ( sloping_surface ) THEN
[707]	739	IF ( nxl == 0 ) pt(:,:,nxlg:nxl-1) = pt(:,:,nxlg:nxl-1) - &
	740	pt_slope_offset
	741	IF ( nxr == nx ) pt(:,:,nxr+1:nxrg) = pt(:,:,nxr+1:nxrg) + &
	742	pt_slope_offset
[1]	743	ENDIF
	744
	745	!
[151]	746	!-- Impose a turbulent inflow using the recycling method
	747	IF ( turbulent_inflow ) CALL inflow_turbulence
	748
	749	!
[1]	750	!-- Impose a random perturbation on the horizontal velocity field
[106]	751	IF ( create_disturbances .AND. &
	752	( call_psolver_at_all_substeps .AND. &
[1]	753	intermediate_timestep_count == intermediate_timestep_count_max )&
[106]	754	.OR. ( .NOT. call_psolver_at_all_substeps .AND. &
	755	intermediate_timestep_count == 1 ) ) &
[1]	756	THEN
	757	time_disturb = time_disturb + dt_3d
	758	IF ( time_disturb >= dt_disturb ) THEN
[1111]	759	!$acc update host( u, v )
[1113]	760	IF ( numprocs == 1 ) on_device = .FALSE. ! workaround, remove later
[1736]	761	IF ( disturbance_energy_limit /= 0.0_wp .AND. &
	762	hom(nzb+5,1,pr_palm,0) < disturbance_energy_limit ) THEN
[75]	763	CALL disturb_field( nzb_u_inner, tend, u )
	764	CALL disturb_field( nzb_v_inner, tend, v )
[707]	765	ELSEIF ( .NOT. bc_lr_cyc .OR. .NOT. bc_ns_cyc ) THEN
[1]	766	!
	767	!-- Runs with a non-cyclic lateral wall need perturbations
	768	!-- near the inflow throughout the whole simulation
	769	dist_range = 1
[75]	770	CALL disturb_field( nzb_u_inner, tend, u )
	771	CALL disturb_field( nzb_v_inner, tend, v )
[1]	772	dist_range = 0
	773	ENDIF
[1113]	774	IF ( numprocs == 1 ) on_device = .TRUE. ! workaround, remove later
[1111]	775	!$acc update device( u, v )
[1]	776	time_disturb = time_disturb - dt_disturb
	777	ENDIF
	778	ENDIF
	779
	780	!
	781	!-- Reduce the velocity divergence via the equation for perturbation
	782	!-- pressure.
[106]	783	IF ( intermediate_timestep_count == 1 .OR. &
	784	call_psolver_at_all_substeps ) THEN
[1]	785	CALL pres
	786	ENDIF
	787
	788	!
	789	!-- If required, compute liquid water content
[1015]	790	IF ( cloud_physics ) THEN
	791	CALL calc_liquid_water_content
	792	!$acc update device( ql )
	793	ENDIF
[1115]	794	!
	795	!-- If required, compute virtual potential temperature
	796	IF ( humidity ) THEN
	797	CALL compute_vpt
	798	!$acc update device( vpt )
	799	ENDIF
[1585]	800
[1]	801	!
	802	!-- Compute the diffusion quantities
	803	IF ( .NOT. constant_diffusion ) THEN
	804
	805	!
[1276]	806	!-- Determine surface fluxes shf and qsws and surface values
	807	!-- pt_surface and q_surface in dependence on data from external
	808	!-- file LSF_DATA respectively
	809	IF ( ( large_scale_forcing .AND. lsf_surf ) .AND. &
	810	intermediate_timestep_count == intermediate_timestep_count_max )&
	811	THEN
	812	CALL ls_forcing_surf ( simulated_time )
	813	ENDIF
	814
	815	!
[1691]	816	!-- First the vertical fluxes in the surface (constant flux) layer are computed
	817	IF ( constant_flux_layer ) THEN
	818	CALL cpu_log( log_point(19), 'surface_layer_fluxes', 'start' )
	819	CALL surface_layer_fluxes
	820	CALL cpu_log( log_point(19), 'surface_layer_fluxes', 'stop' )
[1]	821	ENDIF
[1241]	822
[1]	823	!
[1691]	824	!-- If required, solve the energy balance for the surface and run soil
	825	!-- model
	826	IF ( land_surface .AND. simulated_time > skip_time_do_lsm) THEN
	827
	828	CALL cpu_log( log_point(54), 'land_surface', 'start' )
	829	CALL lsm_energy_balance
	830	CALL lsm_soil_model
	831	CALL cpu_log( log_point(54), 'land_surface', 'stop' )
	832	ENDIF
	833	!
[1]	834	!-- Compute the diffusion coefficients
	835	CALL cpu_log( log_point(17), 'diffusivities', 'start' )
[75]	836	IF ( .NOT. humidity ) THEN
[97]	837	IF ( ocean ) THEN
[388]	838	CALL diffusivities( prho, prho_reference )
[97]	839	ELSE
	840	CALL diffusivities( pt, pt_reference )
	841	ENDIF
[1]	842	ELSE
[97]	843	CALL diffusivities( vpt, pt_reference )
[1]	844	ENDIF
	845	CALL cpu_log( log_point(17), 'diffusivities', 'stop' )
	846
	847	ENDIF
	848
[1691]	849	!
	850	!-- If required, calculate radiative fluxes and heating rates
	851	IF ( radiation .AND. intermediate_timestep_count &
	852	== intermediate_timestep_count_max .AND. simulated_time > &
	853	skip_time_do_radiation ) THEN
	854
	855	time_radiation = time_radiation + dt_3d
	856
	857	IF ( time_radiation >= dt_radiation .OR. force_radiation_call ) &
	858	THEN
	859
	860	CALL cpu_log( log_point(50), 'radiation', 'start' )
	861
	862	IF ( .NOT. force_radiation_call ) THEN
	863	time_radiation = time_radiation - dt_radiation
	864	ELSE
	865	WRITE(9,*) "Unscheduled radiation call at ", simulated_time
	866	CALL LOCAL_FLUSH ( 9 )
	867	ENDIF
	868
	869	IF ( radiation_scheme == 'clear-sky' ) THEN
	870	CALL radiation_clearsky
	871	ELSEIF ( radiation_scheme == 'rrtmg' ) THEN
	872	CALL radiation_rrtmg
	873	ENDIF
	874
	875	CALL cpu_log( log_point(50), 'radiation', 'stop' )
	876	ENDIF
	877	ENDIF
	878
[1]	879	ENDDO ! Intermediate step loop
	880
	881	!
	882	!-- Increase simulation time and output times
[1111]	883	nr_timesteps_this_run = nr_timesteps_this_run + 1
[291]	884	current_timestep_number = current_timestep_number + 1
	885	simulated_time = simulated_time + dt_3d
	886	simulated_time_chr = time_to_string( simulated_time )
	887	time_since_reference_point = simulated_time - coupling_start_time
	888
[1]	889	IF ( simulated_time >= skip_time_data_output_av ) THEN
	890	time_do_av = time_do_av + dt_3d
	891	ENDIF
	892	IF ( simulated_time >= skip_time_do2d_xy ) THEN
	893	time_do2d_xy = time_do2d_xy + dt_3d
	894	ENDIF
	895	IF ( simulated_time >= skip_time_do2d_xz ) THEN
	896	time_do2d_xz = time_do2d_xz + dt_3d
	897	ENDIF
	898	IF ( simulated_time >= skip_time_do2d_yz ) THEN
	899	time_do2d_yz = time_do2d_yz + dt_3d
	900	ENDIF
	901	IF ( simulated_time >= skip_time_do3d ) THEN
	902	time_do3d = time_do3d + dt_3d
	903	ENDIF
[410]	904	DO mid = 1, masks
	905	IF ( simulated_time >= skip_time_domask(mid) ) THEN
	906	time_domask(mid)= time_domask(mid) + dt_3d
	907	ENDIF
	908	ENDDO
[1]	909	time_dvrp = time_dvrp + dt_3d
	910	IF ( simulated_time >= skip_time_dosp ) THEN
	911	time_dosp = time_dosp + dt_3d
	912	ENDIF
	913	time_dots = time_dots + dt_3d
[849]	914	IF ( .NOT. first_call_lpm ) THEN
[1]	915	time_dopts = time_dopts + dt_3d
	916	ENDIF
	917	IF ( simulated_time >= skip_time_dopr ) THEN
	918	time_dopr = time_dopr + dt_3d
	919	ENDIF
	920	time_dopr_listing = time_dopr_listing + dt_3d
	921	time_run_control = time_run_control + dt_3d
	922
	923	!
[102]	924	!-- Data exchange between coupled models
[291]	925	IF ( coupling_mode /= 'uncoupled' .AND. run_coupled ) THEN
[102]	926	time_coupling = time_coupling + dt_3d
[343]	927
[108]	928	!
	929	!-- In case of model termination initiated by the local model
	930	!-- (terminate_coupled > 0), the coupler must be skipped because it would
	931	!-- cause an MPI intercomminucation hang.
	932	!-- If necessary, the coupler will be called at the beginning of the
	933	!-- next restart run.
	934	DO WHILE ( time_coupling >= dt_coupling .AND. terminate_coupled == 0 )
[102]	935	CALL surface_coupler
	936	time_coupling = time_coupling - dt_coupling
	937	ENDDO
	938	ENDIF
	939
	940	!
[46]	941	!-- Execute user-defined actions
	942	CALL user_actions( 'after_integration' )
	943
	944	!
[1]	945	!-- If Galilei transformation is used, determine the distance that the
	946	!-- model has moved so far
	947	IF ( galilei_transformation ) THEN
	948	advected_distance_x = advected_distance_x + u_gtrans * dt_3d
	949	advected_distance_y = advected_distance_y + v_gtrans * dt_3d
	950	ENDIF
	951
	952	!
	953	!-- Check, if restart is necessary (because cpu-time is expiring or
	954	!-- because it is forced by user) and set stop flag
[108]	955	!-- This call is skipped if the remote model has already initiated a restart.
	956	IF ( .NOT. terminate_run ) CALL check_for_restart
[1]	957
	958	!
	959	!-- Carry out statistical analysis and output at the requested output times.
	960	!-- The MOD function is used for calculating the output time counters (like
	961	!-- time_dopr) in order to regard a possible decrease of the output time
	962	!-- interval in case of restart runs
	963
	964	!
	965	!-- Set a flag indicating that so far no statistics have been created
	966	!-- for this time step
	967	flow_statistics_called = .FALSE.
	968
	969	!
	970	!-- If required, call flow_statistics for averaging in time
[1342]	971	IF ( averaging_interval_pr /= 0.0_wp .AND. &
[1]	972	( dt_dopr - time_dopr ) <= averaging_interval_pr .AND. &
	973	simulated_time >= skip_time_dopr ) THEN
	974	time_dopr_av = time_dopr_av + dt_3d
	975	IF ( time_dopr_av >= dt_averaging_input_pr ) THEN
	976	do_sum = .TRUE.
	977	time_dopr_av = MOD( time_dopr_av, &
	978	MAX( dt_averaging_input_pr, dt_3d ) )
	979	ENDIF
	980	ENDIF
	981	IF ( do_sum ) CALL flow_statistics
	982
	983	!
[410]	984	!-- Sum-up 3d-arrays for later output of time-averaged 2d/3d/masked data
[1342]	985	IF ( averaging_interval /= 0.0_wp .AND. &
[1]	986	( dt_data_output_av - time_do_av ) <= averaging_interval .AND. &
	987	simulated_time >= skip_time_data_output_av ) &
	988	THEN
	989	time_do_sla = time_do_sla + dt_3d
	990	IF ( time_do_sla >= dt_averaging_input ) THEN
	991	CALL sum_up_3d_data
	992	average_count_3d = average_count_3d + 1
	993	time_do_sla = MOD( time_do_sla, MAX( dt_averaging_input, dt_3d ) )
	994	ENDIF
	995	ENDIF
	996
	997	!
	998	!-- Calculate spectra for time averaging
[1342]	999	IF ( averaging_interval_sp /= 0.0_wp .AND. &
[1]	1000	( dt_dosp - time_dosp ) <= averaging_interval_sp .AND. &
	1001	simulated_time >= skip_time_dosp ) THEN
	1002	time_dosp_av = time_dosp_av + dt_3d
	1003	IF ( time_dosp_av >= dt_averaging_input_pr ) THEN
	1004	CALL calc_spectra
	1005	time_dosp_av = MOD( time_dosp_av, &
	1006	MAX( dt_averaging_input_pr, dt_3d ) )
	1007	ENDIF
	1008	ENDIF
	1009
	1010	!
	1011	!-- Computation and output of run control parameters.
[1001]	1012	!-- This is also done whenever perturbations have been imposed
[1]	1013	IF ( time_run_control >= dt_run_control .OR. &
[1001]	1014	timestep_scheme(1:5) /= 'runge' .OR. disturbance_created ) &
[1]	1015	THEN
	1016	CALL run_control
	1017	IF ( time_run_control >= dt_run_control ) THEN
	1018	time_run_control = MOD( time_run_control, &
	1019	MAX( dt_run_control, dt_3d ) )
	1020	ENDIF
	1021	ENDIF
	1022
	1023	!
	1024	!-- Profile output (ASCII) on file
	1025	IF ( time_dopr_listing >= dt_dopr_listing ) THEN
	1026	CALL print_1d
	1027	time_dopr_listing = MOD( time_dopr_listing, MAX( dt_dopr_listing, &
	1028	dt_3d ) )
	1029	ENDIF
	1030
	1031	!
	1032	!-- Graphic output for PROFIL
	1033	IF ( time_dopr >= dt_dopr ) THEN
	1034	IF ( dopr_n /= 0 ) CALL data_output_profiles
	1035	time_dopr = MOD( time_dopr, MAX( dt_dopr, dt_3d ) )
[1342]	1036	time_dopr_av = 0.0_wp ! due to averaging (see above)
[1]	1037	ENDIF
	1038
	1039	!
	1040	!-- Graphic output for time series
	1041	IF ( time_dots >= dt_dots ) THEN
[48]	1042	CALL data_output_tseries
[1]	1043	time_dots = MOD( time_dots, MAX( dt_dots, dt_3d ) )
	1044	ENDIF
	1045
	1046	!
	1047	!-- Output of spectra (formatted for use with PROFIL), in case of no
	1048	!-- time averaging, spectra has to be calculated before
	1049	IF ( time_dosp >= dt_dosp ) THEN
	1050	IF ( average_count_sp == 0 ) CALL calc_spectra
	1051	CALL data_output_spectra
	1052	time_dosp = MOD( time_dosp, MAX( dt_dosp, dt_3d ) )
	1053	ENDIF
	1054
	1055	!
	1056	!-- 2d-data output (cross-sections)
	1057	IF ( time_do2d_xy >= dt_do2d_xy ) THEN
	1058	CALL data_output_2d( 'xy', 0 )
	1059	time_do2d_xy = MOD( time_do2d_xy, MAX( dt_do2d_xy, dt_3d ) )
	1060	ENDIF
	1061	IF ( time_do2d_xz >= dt_do2d_xz ) THEN
	1062	CALL data_output_2d( 'xz', 0 )
	1063	time_do2d_xz = MOD( time_do2d_xz, MAX( dt_do2d_xz, dt_3d ) )
	1064	ENDIF
	1065	IF ( time_do2d_yz >= dt_do2d_yz ) THEN
	1066	CALL data_output_2d( 'yz', 0 )
	1067	time_do2d_yz = MOD( time_do2d_yz, MAX( dt_do2d_yz, dt_3d ) )
	1068	ENDIF
	1069
	1070	!
	1071	!-- 3d-data output (volume data)
	1072	IF ( time_do3d >= dt_do3d ) THEN
	1073	CALL data_output_3d( 0 )
	1074	time_do3d = MOD( time_do3d, MAX( dt_do3d, dt_3d ) )
	1075	ENDIF
	1076
	1077	!
[410]	1078	!-- masked data output
[1308]	1079	!-- Parallel netcdf output is not tested so far for masked data, hence
	1080	!-- netcdf_data_format is switched back to non-paralell output.
	1081	netcdf_data_format_save = netcdf_data_format
	1082	IF ( netcdf_data_format == 5 ) netcdf_data_format = 3
	1083	IF ( netcdf_data_format == 6 ) netcdf_data_format = 4
[410]	1084	DO mid = 1, masks
	1085	IF ( time_domask(mid) >= dt_domask(mid) ) THEN
	1086	CALL data_output_mask( 0 )
	1087	time_domask(mid) = MOD( time_domask(mid), &
	1088	MAX( dt_domask(mid), dt_3d ) )
	1089	ENDIF
	1090	ENDDO
[1308]	1091	netcdf_data_format = netcdf_data_format_save
[410]	1092
	1093	!
	1094	!-- Output of time-averaged 2d/3d/masked data
[1]	1095	IF ( time_do_av >= dt_data_output_av ) THEN
	1096	CALL average_3d_data
	1097	CALL data_output_2d( 'xy', 1 )
	1098	CALL data_output_2d( 'xz', 1 )
	1099	CALL data_output_2d( 'yz', 1 )
	1100	CALL data_output_3d( 1 )
[1308]	1101	!-- Parallel netcdf output is not tested so far for masked data, hence
	1102	!-- netcdf_data_format is switched back to non-paralell output.
	1103	netcdf_data_format_save = netcdf_data_format
	1104	IF ( netcdf_data_format == 5 ) netcdf_data_format = 3
	1105	IF ( netcdf_data_format == 6 ) netcdf_data_format = 4
[410]	1106	DO mid = 1, masks
	1107	CALL data_output_mask( 1 )
	1108	ENDDO
[1308]	1109	netcdf_data_format = netcdf_data_format_save
[1]	1110	time_do_av = MOD( time_do_av, MAX( dt_data_output_av, dt_3d ) )
	1111	ENDIF
	1112
	1113	!
	1114	!-- Output of particle time series
[253]	1115	IF ( particle_advection ) THEN
	1116	IF ( time_dopts >= dt_dopts .OR. &
	1117	( simulated_time >= particle_advection_start .AND. &
[849]	1118	first_call_lpm ) ) THEN
[253]	1119	CALL data_output_ptseries
	1120	time_dopts = MOD( time_dopts, MAX( dt_dopts, dt_3d ) )
	1121	ENDIF
[1]	1122	ENDIF
	1123
	1124	!
	1125	!-- Output of dvrp-graphics (isosurface, particles, slicer)
	1126	#if defined( __dvrp_graphics )
	1127	CALL DVRP_LOG_EVENT( -2, current_timestep_number-1 )
	1128	#endif
	1129	IF ( time_dvrp >= dt_dvrp ) THEN
	1130	CALL data_output_dvrp
	1131	time_dvrp = MOD( time_dvrp, MAX( dt_dvrp, dt_3d ) )
	1132	ENDIF
	1133	#if defined( __dvrp_graphics )
	1134	CALL DVRP_LOG_EVENT( 2, current_timestep_number )
	1135	#endif
	1136
	1137	!
	1138	!-- If required, set the heat flux for the next time step at a random value
	1139	IF ( constant_heatflux .AND. random_heatflux ) CALL disturb_heatflux
	1140
	1141	!
	1142	!-- Execute user-defined actions
	1143	CALL user_actions( 'after_timestep' )
	1144
[1402]	1145	!
	1146	!-- Output elapsed simulated time in form of a progress bar on stdout
[1762]	1147	!-- TO_DO: should be done by root domain later
	1148	#if ! defined( PMC_ACTIVE )
[1402]	1149	IF ( myid == 0 ) CALL output_progress_bar
[1762]	1150	#endif
[1402]	1151
[1]	1152	CALL cpu_log( log_point_s(10), 'timesteps', 'stop' )
	1153
[667]	1154
[1]	1155	ENDDO ! time loop
	1156
[1762]	1157	!-- TO_DO: should be done by root domain later
	1158	#if ! defined( PMC_ACTIVE )
[1402]	1159	IF ( myid == 0 ) CALL finish_progress_bar
[1762]	1160	#endif
[1402]	1161
[1]	1162	#if defined( __dvrp_graphics )
	1163	CALL DVRP_LOG_EVENT( -2, current_timestep_number )
	1164	#endif
	1165
[1402]	1166	CALL location_message( 'finished time-stepping', .TRUE. )
[1384]	1167
[1]	1168	END SUBROUTINE time_integration

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