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source: palm/trunk/SOURCE/time_integration.f90 @ 1968

Last change on this file since 1968 was 1961, checked in by suehring, 8 years ago
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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	!
[1818]	16	! Copyright 1997-2016 Leibniz Universitaet Hannover
[1036]	17	!--------------------------------------------------------------------------------!
	18	!
[484]	19	! Current revisions:
[1092]	20	! ------------------
[1928]	21	!
[1961]	22	!
[1366]	23	! Former revisions:
	24	! -----------------
	25	! $Id: time_integration.f90 1961 2016-07-12 16:37:58Z suehring $
	26	!
[1961]	27	! 1960 2016-07-12 16:34:24Z suehring
	28	! Separate humidity and passive scalar
	29	!
[1958]	30	! 1957 2016-07-07 10:43:48Z suehring
	31	! flight module added
	32	!
[1933]	33	! 1919 2016-05-27 14:51:23Z raasch
	34	! Initial version of purely vertical nesting introduced.
[1928]	35	!
[1919]	36	! 1918 2016-05-27 14:35:57Z raasch
	37	! determination of time step moved to the end of the time step loop,
	38	! the first time step is now always calculated before the time step loop (i.e.
	39	! also in case of restart runs)
	40	!
[1917]	41	! 1914 2016-05-26 14:44:07Z witha
	42	! Added call for wind turbine model
	43	!
[1879]	44	! 1878 2016-04-19 12:30:36Z hellstea
	45	! Synchronization for nested runs rewritten
	46	!
[1854]	47	! 1853 2016-04-11 09:00:35Z maronga
	48	! Adjusted for use with radiation_scheme = constant
	49	!
[1851]	50	! 1849 2016-04-08 11:33:18Z hoffmann
	51	! Adapted for modularization of microphysics
	52	!
[1834]	53	! 1833 2016-04-07 14:23:03Z raasch
	54	! spectrum renamed spectra_mod, spectra related variables moved to spectra_mod
	55	!
[1832]	56	! 1831 2016-04-07 13:15:51Z hoffmann
	57	! turbulence renamed collision_turbulence
	58	!
[1823]	59	! 1822 2016-04-07 07:49:42Z hoffmann
	60	! icloud_scheme replaced by microphysics_*
	61	!
[1809]	62	! 1808 2016-04-05 19:44:00Z raasch
	63	! output message in case unscheduled radiation calls removed
	64	!
[1798]	65	! 1797 2016-03-21 16:50:28Z raasch
	66	! introduction of different datatransfer modes
	67	!
[1792]	68	! 1791 2016-03-11 10:41:25Z raasch
	69	! call of pmci_update_new removed
	70	!
[1787]	71	! 1786 2016-03-08 05:49:27Z raasch
	72	! +module spectrum
	73	!
[1784]	74	! 1783 2016-03-06 18:36:17Z raasch
	75	! switch back of netcdf data format for mask output moved to the mask output
	76	! routine
	77	!
[1782]	78	! 1781 2016-03-03 15:12:23Z raasch
	79	! some pmc calls removed at the beginning (before timeloop),
	80	! pmc initialization moved to the main program
	81	!
[1765]	82	! 1764 2016-02-28 12:45:19Z raasch
	83	! PMC_ACTIVE flags removed,
	84	! bugfix: nest synchronization after first call of timestep
	85	!
[1763]	86	! 1762 2016-02-25 12:31:13Z hellstea
	87	! Introduction of nested domain feature
	88	!
[1737]	89	! 1736 2015-12-04 08:56:33Z raasch
	90	! no perturbations added to total domain if energy limit has been set zero
	91	!
[1692]	92	! 1691 2015-10-26 16:17:44Z maronga
	93	! Added option for spin-ups without land surface and radiation models. Moved calls
	94	! for radiation and lan surface schemes.
	95	!
[1683]	96	! 1682 2015-10-07 23:56:08Z knoop
	97	! Code annotations made doxygen readable
	98	!
[1672]	99	! 1671 2015-09-25 03:29:37Z raasch
	100	! bugfix: ghostpoint exchange for array diss in case that sgs velocities are used
	101	! for particles
	102	!
[1586]	103	! 1585 2015-04-30 07:05:52Z maronga
	104	! Moved call of radiation scheme. Added support for RRTM
	105	!
[1552]	106	! 1551 2015-03-03 14:18:16Z maronga
	107	! Added interface for different radiation schemes.
	108	!
[1497]	109	! 1496 2014-12-02 17:25:50Z maronga
	110	! Added calls for the land surface model and radiation scheme
	111	!
[1403]	112	! 1402 2014-05-09 14:25:13Z raasch
	113	! location messages modified
	114	!
[1385]	115	! 1384 2014-05-02 14:31:06Z raasch
	116	! location messages added
	117	!
[1381]	118	! 1380 2014-04-28 12:40:45Z heinze
	119	! CALL of nudge_ref added
	120	! bc_pt_t_val and bc_q_t_val are updated in case nudging is used
	121	!
[1366]	122	! 1365 2014-04-22 15:03:56Z boeske
[1365]	123	! Reset sums_ls_l to zero at each timestep
	124	! +sums_ls_l
	125	! Calculation of reference state (previously in subroutine calc_mean_profile)
	126
[1343]	127	! 1342 2014-03-26 17:04:47Z kanani
	128	! REAL constants defined as wp-kind
	129	!
[1321]	130	! 1320 2014-03-20 08:40:49Z raasch
[1320]	131	! ONLY-attribute added to USE-statements,
	132	! kind-parameters added to all INTEGER and REAL declaration statements,
	133	! kinds are defined in new module kinds,
	134	! old module precision_kind is removed,
	135	! revision history before 2012 removed,
	136	! comment fields (!:) to be used for variable explanations added to
	137	! all variable declaration statements
[1319]	138	! 1318 2014-03-17 13:35:16Z raasch
	139	! module interfaces removed
	140	!
[1309]	141	! 1308 2014-03-13 14:58:42Z fricke
	142	! +netcdf_data_format_save
	143	! For masked data, parallel netcdf output is not tested so far, hence
	144	! netcdf_data_format is switched back to non-paralell output.
	145	!
[1277]	146	! 1276 2014-01-15 13:40:41Z heinze
	147	! Use LSF_DATA also in case of Dirichlet bottom boundary condition for scalars
	148	!
[1258]	149	! 1257 2013-11-08 15:18:40Z raasch
	150	! acc-update-host directive for timestep removed
	151	!
[1242]	152	! 1241 2013-10-30 11:36:58Z heinze
	153	! Generalize calc_mean_profile for wider use
	154	! Determine shf and qsws in dependence on data from LSF_DATA
	155	! Determine ug and vg in dependence on data from LSF_DATA
[1222]	156	! 1221 2013-09-10 08:59:13Z raasch
	157	! host update of arrays before timestep is called
	158	!
[1182]	159	! 1179 2013-06-14 05:57:58Z raasch
	160	! mean profiles for reference state are only calculated if required,
	161	! small bugfix for background communication
	162	!
[1172]	163	! 1171 2013-05-30 11:27:45Z raasch
	164	! split of prognostic_equations deactivated (comment lines), for the time being
	165	!
[1132]	166	! 1128 2013-04-12 06:19:32Z raasch
[1128]	167	! asynchronous transfer of ghost point data realized for acc-optimized version:
	168	! prognostic_equations are first called two times for those points required for
	169	! the left-right and north-south exchange, respectively, and then for the
	170	! remaining points,
	171	! those parts requiring global communication moved from prognostic_equations to
	172	! here
[392]	173	!
[1116]	174	! 1115 2013-03-26 18:16:16Z hoffmann
	175	! calculation of qr and nr is restricted to precipitation
	176	!
[1114]	177	! 1113 2013-03-10 02:48:14Z raasch
	178	! GPU-porting of boundary conditions,
	179	! openACC directives updated
	180	! formal parameter removed from routine boundary_conds
	181	!
[1112]	182	! 1111 2013-03-08 23:54:10Z raasch
	183	! +internal timestep counter for cpu statistics added,
	184	! openACC directives updated
	185	!
[1093]	186	! 1092 2013-02-02 11:24:22Z raasch
	187	! unused variables removed
	188	!
[1066]	189	! 1065 2012-11-22 17:42:36Z hoffmann
	190	! exchange of diss (dissipation rate) in case of turbulence = .TRUE. added
	191	!
[1054]	192	! 1053 2012-11-13 17:11:03Z hoffmann
	193	! exchange of ghost points for nr, qr added
	194	!
[1037]	195	! 1036 2012-10-22 13:43:42Z raasch
	196	! code put under GPL (PALM 3.9)
	197	!
[1020]	198	! 1019 2012-09-28 06:46:45Z raasch
	199	! non-optimized version of prognostic_equations removed
	200	!
[1017]	201	! 1015 2012-09-27 09:23:24Z raasch
	202	! +call of prognostic_equations_acc
	203	!
[1002]	204	! 1001 2012-09-13 14:08:46Z raasch
	205	! all actions concerning leapfrog- and upstream-spline-scheme removed
	206	!
[850]	207	! 849 2012-03-15 10:35:09Z raasch
	208	! advec_particles renamed lpm, first_call_advec_particles renamed first_call_lpm
	209	!
[826]	210	! 825 2012-02-19 03:03:44Z raasch
	211	! wang_collision_kernel renamed wang_kernel
	212	!
[1]	213	! Revision 1.1 1997/08/11 06:19:04 raasch
	214	! Initial revision
	215	!
	216	!
	217	! Description:
	218	! ------------
[1682]	219	!> Integration in time of the model equations, statistical analysis and graphic
	220	!> output
[1]	221	!------------------------------------------------------------------------------!
[1682]	222	SUBROUTINE time_integration
	223
[1]	224
[1320]	225	USE advec_ws, &
	226	ONLY: ws_statistics
	227
	228	USE arrays_3d, &
[1762]	229	ONLY: diss, dzu, e, e_p, nr_p, prho, pt, pt_p, pt_init, q_init, q, &
[1960]	230	ql, ql_c, ql_v, ql_vp, qr_p, q_p, ref_state, rho, s, s_p, sa_p, &
	231	tend, u, u_p, v, vpt, v_p, w, w_p
[1320]	232
[1365]	233	USE calc_mean_profile_mod, &
[1320]	234	ONLY: calc_mean_profile
	235
	236	USE control_parameters, &
	237	ONLY: advected_distance_x, advected_distance_y, average_count_3d, &
[1833]	238	averaging_interval, averaging_interval_pr, &
	239	bc_lr_cyc, bc_ns_cyc, bc_pt_t_val, &
[1380]	240	bc_q_t_val, call_psolver_at_all_substeps, cloud_droplets, &
[1691]	241	cloud_physics, constant_flux_layer, constant_heatflux, &
	242	create_disturbances, dopr_n, constant_diffusion, coupling_mode, &
	243	coupling_start_time, current_timestep_number, &
	244	disturbance_created, disturbance_energy_limit, dist_range, &
	245	do_sum, dt_3d, dt_averaging_input, dt_averaging_input_pr, &
	246	dt_coupling, dt_data_output_av, dt_disturb, dt_do2d_xy, &
	247	dt_do2d_xz, dt_do2d_yz, dt_do3d, dt_domask,dt_dopts, dt_dopr, &
[1833]	248	dt_dopr_listing, dt_dots, dt_dvrp, dt_run_control, &
[1320]	249	end_time, first_call_lpm, galilei_transformation, humidity, &
[1822]	250	intermediate_timestep_count, &
[1320]	251	intermediate_timestep_count_max, large_scale_forcing, &
[1822]	252	loop_optimization, lsf_surf, lsf_vert, masks, &
	253	microphysics_seifert, mid, nest_domain, &
[1783]	254	neutral, nr_timesteps_this_run, nudging, &
[1822]	255	ocean, on_device, passive_scalar, &
[1320]	256	prho_reference, pt_reference, pt_slope_offset, random_heatflux, &
	257	run_coupled, simulated_time, simulated_time_chr, &
	258	skip_time_do2d_xy, skip_time_do2d_xz, skip_time_do2d_yz, &
	259	skip_time_do3d, skip_time_domask, skip_time_dopr, &
[1833]	260	skip_time_data_output_av, sloping_surface, &
[1320]	261	stop_dt, terminate_coupled, terminate_run, timestep_scheme, &
	262	time_coupling, time_do2d_xy, time_do2d_xz, time_do2d_yz, &
	263	time_do3d, time_domask, time_dopr, time_dopr_av, &
	264	time_dopr_listing, time_dopts, time_dosp, time_dosp_av, &
	265	time_dots, time_do_av, time_do_sla, time_disturb, time_dvrp, &
[1496]	266	time_run_control, time_since_reference_point, &
[1320]	267	turbulent_inflow, use_initial_profile_as_reference, &
[1957]	268	use_single_reference_value, u_gtrans, v_gtrans, virtual_flight, &
	269	ws_scheme_mom, ws_scheme_sca
[1320]	270
	271	USE cpulog, &
	272	ONLY: cpu_log, log_point, log_point_s
	273
[1957]	274	USE flight_mod, &
	275	ONLY: flight_measurement
	276
	277
[1320]	278	USE indices, &
	279	ONLY: i_left, i_right, j_north, j_south, nbgp, nx, nxl, nxlg, nxr, &
[1918]	280	nxrg, nyn, nyng, nys, nysg, nzb, nzt, nzb_u_inner, nzb_v_inner
[1320]	281
	282	USE interaction_droplets_ptq_mod, &
	283	ONLY: interaction_droplets_ptq
	284
[1918]	285	USE interfaces
	286
[1320]	287	USE kinds
	288
[1496]	289	USE land_surface_model_mod, &
[1691]	290	ONLY: land_surface, lsm_energy_balance, lsm_soil_model, &
	291	skip_time_do_lsm
[1496]	292
[1320]	293	USE ls_forcing_mod, &
	294	ONLY: ls_forcing_surf, ls_forcing_vert
	295
[1849]	296	USE microphysics_mod, &
	297	ONLY: collision_turbulence
	298
[1365]	299	USE nudge_mod, &
[1380]	300	ONLY: calc_tnudge, nudge_ref
[1365]	301
[1320]	302	USE particle_attributes, &
[1671]	303	ONLY: particle_advection, particle_advection_start, &
	304	use_sgs_for_particles, wang_kernel
[1320]	305
[1]	306	USE pegrid
	307
[1762]	308	USE pmc_interface, &
[1933]	309	ONLY: nested_run, nesting_mode, pmci_datatrans, &
	310	pmci_ensure_nest_mass_conservation, pmci_synchronize
[1762]	311
[1320]	312	USE production_e_mod, &
	313	ONLY: production_e_init
	314
[1402]	315	USE progress_bar, &
	316	ONLY: finish_progress_bar, output_progress_bar
	317
[1320]	318	USE prognostic_equations_mod, &
	319	ONLY: prognostic_equations_acc, prognostic_equations_cache, &
	320	prognostic_equations_vector
	321
[1496]	322	USE radiation_model_mod, &
[1691]	323	ONLY: dt_radiation, force_radiation_call, radiation, &
[1853]	324	radiation_clearsky, radiation_constant, radiation_rrtmg, &
	325	radiation_scheme, skip_time_do_radiation, time_radiation
[1496]	326
[1833]	327	USE spectra_mod, &
	328	ONLY: average_count_sp, averaging_interval_sp, calc_spectra, dt_dosp, &
	329	skip_time_dosp
[1786]	330
[1320]	331	USE statistics, &
[1918]	332	ONLY: flow_statistics_called, hom, pr_palm, sums_ls_l, u_max, &
	333	u_max_ijk, v_max, v_max_ijk, w_max, w_max_ijk
[1320]	334
[1691]	335	USE surface_layer_fluxes_mod, &
	336	ONLY: surface_layer_fluxes
	337
[1320]	338	USE user_actions_mod, &
	339	ONLY: user_actions
	340
[1914]	341	USE wind_turbine_model_mod, &
	342	ONLY: wind_turbine, wtm_forces
	343
[1]	344	IMPLICIT NONE
	345
[1682]	346	CHARACTER (LEN=9) :: time_to_string !<
[1]	347
[1918]	348	REAL(wp) :: dt_3d_old !< temporary storage of timestep to be used for
	349	!< steering of run control output interval
	350
[1]	351	!
[1918]	352	!-- At beginning determine the first time step
	353	CALL timestep
[667]	354
[1764]	355	!
	356	!-- Synchronize the timestep in case of nested run.
	357	IF ( nested_run ) THEN
[1878]	358	!
	359	!-- Synchronization by unifying the time step.
	360	!-- Global minimum of all time-steps is used for all.
	361	CALL pmci_synchronize
[1764]	362	ENDIF
	363
[1918]	364	!
	365	!-- Determine and print out the run control quantities before the first time
	366	!-- step of this run. For the initial run, some statistics (e.g. divergence)
	367	!-- need to be determined first.
	368	IF ( simulated_time == 0.0_wp ) CALL flow_statistics
[1]	369	CALL run_control
	370
[108]	371	!
	372	!-- Data exchange between coupled models in case that a call has been omitted
	373	!-- at the end of the previous run of a job chain.
[291]	374	IF ( coupling_mode /= 'uncoupled' .AND. run_coupled ) THEN
[108]	375	!
	376	!-- In case of model termination initiated by the local model the coupler
	377	!-- must not be called because this would again cause an MPI hang.
[1918]	378	DO WHILE ( time_coupling >= dt_coupling .AND. terminate_coupled == 0 )
[108]	379	CALL surface_coupler
	380	time_coupling = time_coupling - dt_coupling
	381	ENDDO
[1918]	382	IF (time_coupling == 0.0_wp .AND. &
	383	time_since_reference_point < dt_coupling ) &
[348]	384	THEN
	385	time_coupling = time_since_reference_point
	386	ENDIF
[108]	387	ENDIF
	388
[1]	389	#if defined( __dvrp_graphics )
	390	!
	391	!-- Time measurement with dvrp software
	392	CALL DVRP_LOG_EVENT( 2, current_timestep_number )
	393	#endif
	394
[1402]	395	CALL location_message( 'start with time-stepping', .TRUE. )
[1]	396	!
	397	!-- Start of the time loop
	398	DO WHILE ( simulated_time < end_time .AND. .NOT. stop_dt .AND. &
	399	.NOT. terminate_run )
	400
	401	CALL cpu_log( log_point_s(10), 'timesteps', 'start' )
[1221]	402
[1]	403	!
[1241]	404	!-- Determine ug, vg and w_subs in dependence on data from external file
	405	!-- LSF_DATA
[1365]	406	IF ( large_scale_forcing .AND. lsf_vert ) THEN
[1241]	407	CALL ls_forcing_vert ( simulated_time )
[1365]	408	sums_ls_l = 0.0_wp
[1241]	409	ENDIF
	410
	411	!
[1380]	412	!-- Set pt_init and q_init to the current profiles taken from
	413	!-- NUDGING_DATA
	414	IF ( nudging ) THEN
	415	CALL nudge_ref ( simulated_time )
	416	!
	417	!-- Store temperature gradient at the top boundary for possible Neumann
	418	!-- boundary condition
	419	bc_pt_t_val = ( pt_init(nzt+1) - pt_init(nzt) ) / dzu(nzt+1)
	420	bc_q_t_val = ( q_init(nzt+1) - q_init(nzt) ) / dzu(nzt+1)
	421	ENDIF
	422
	423	!
[1]	424	!-- Execute the user-defined actions
	425	CALL user_actions( 'before_timestep' )
	426
	427	!
[1914]	428	!-- Calculate forces by wind turbines
	429	IF ( wind_turbine ) THEN
	430
	431	CALL cpu_log( log_point(55), 'wind_turbine', 'start' )
	432
	433	CALL wtm_forces
	434
	435	CALL cpu_log( log_point(55), 'wind_turbine', 'stop' )
	436
	437	ENDIF
	438
	439	!
[1]	440	!-- Start of intermediate step loop
	441	intermediate_timestep_count = 0
	442	DO WHILE ( intermediate_timestep_count < &
	443	intermediate_timestep_count_max )
	444
	445	intermediate_timestep_count = intermediate_timestep_count + 1
	446
	447	!
	448	!-- Set the steering factors for the prognostic equations which depend
	449	!-- on the timestep scheme
	450	CALL timestep_scheme_steering
	451
	452	!
[1128]	453	!-- Calculate those variables needed in the tendency terms which need
	454	!-- global communication
[1179]	455	IF ( .NOT. use_single_reference_value .AND. &
	456	.NOT. use_initial_profile_as_reference ) THEN
	457	!
	458	!-- Horizontally averaged profiles to be used as reference state in
	459	!-- buoyancy terms (WARNING: only the respective last call of
	460	!-- calc_mean_profile defines the reference state!)
[1365]	461	IF ( .NOT. neutral ) THEN
	462	CALL calc_mean_profile( pt, 4 )
	463	ref_state(:) = hom(:,1,4,0) ! this is used in the buoyancy term
	464	ENDIF
	465	IF ( ocean ) THEN
	466	CALL calc_mean_profile( rho, 64 )
	467	ref_state(:) = hom(:,1,64,0)
	468	ENDIF
	469	IF ( humidity ) THEN
	470	CALL calc_mean_profile( vpt, 44 )
	471	ref_state(:) = hom(:,1,44,0)
	472	ENDIF
	473
[1179]	474	ENDIF
	475
[1128]	476	IF ( .NOT. constant_diffusion ) CALL production_e_init
	477	IF ( ( ws_scheme_mom .OR. ws_scheme_sca ) .AND. &
	478	intermediate_timestep_count == 1 ) CALL ws_statistics
[1365]	479	!
	480	!-- In case of nudging calculate current nudging time scale and horizontal
[1380]	481	!-- means of u, v, pt and q
[1365]	482	IF ( nudging ) THEN
	483	CALL calc_tnudge( simulated_time )
	484	CALL calc_mean_profile( u, 1 )
	485	CALL calc_mean_profile( v, 2 )
	486	CALL calc_mean_profile( pt, 4 )
	487	CALL calc_mean_profile( q, 41 )
	488	ENDIF
[1128]	489
	490	!
[1]	491	!-- Solve the prognostic equations. A fast cache optimized version with
	492	!-- only one single loop is used in case of Piascek-Williams advection
	493	!-- scheme. NEC vector machines use a different version, because
	494	!-- in the other versions a good vectorization is prohibited due to
	495	!-- inlining problems.
[1019]	496	IF ( loop_optimization == 'cache' ) THEN
	497	CALL prognostic_equations_cache
	498	ELSEIF ( loop_optimization == 'vector' ) THEN
[63]	499	CALL prognostic_equations_vector
[1015]	500	ELSEIF ( loop_optimization == 'acc' ) THEN
[1171]	501	i_left = nxl; i_right = nxr
	502	j_south = nys; j_north = nyn
	503	CALL prognostic_equations_acc
	504
	505	! i_left = nxl; i_right = nxl+nbgp-1
[1128]	506	! j_south = nys; j_north = nyn
	507	! CALL prognostic_equations_acc
[1171]	508	! i_left = nxr-nbgp+1; i_right = nxr
	509	! j_south = nys; j_north = nyn
	510	! CALL prognostic_equations_acc
[1128]	511
	512	!
	513	!-- Exchange of ghost points (lateral boundary conditions)
	514	IF ( background_communication ) THEN
	515
	516	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'start' )
	517
	518	send_receive = 'lr'
	519	sendrecv_in_background = .TRUE.
	520	req = 0
	521	req_count = 0
	522
	523	IF ( numprocs == 1 ) THEN ! workaround for single-core GPU runs
	524	on_device = .TRUE. ! to be removed after complete porting
	525	ELSE ! of ghost point exchange
	526	!$acc update host( e_p, pt_p, u_p, v_p, w_p )
	527	ENDIF
	528
	529	CALL exchange_horiz( u_p, nbgp )
	530	CALL exchange_horiz( v_p, nbgp )
	531	CALL exchange_horiz( w_p, nbgp )
	532	CALL exchange_horiz( pt_p, nbgp )
	533	IF ( .NOT. constant_diffusion ) CALL exchange_horiz( e_p, nbgp )
	534	IF ( ocean ) THEN
	535	CALL exchange_horiz( sa_p, nbgp )
	536	CALL exchange_horiz( rho, nbgp )
[1960]	537	CALL exchange_horiz( prho, nbgp )
[1128]	538	ENDIF
[1960]	539	IF ( humidity ) THEN
[1128]	540	CALL exchange_horiz( q_p, nbgp )
[1822]	541	IF ( cloud_physics .AND. microphysics_seifert ) THEN
[1128]	542	CALL exchange_horiz( qr_p, nbgp )
	543	CALL exchange_horiz( nr_p, nbgp )
	544	ENDIF
	545	ENDIF
	546	IF ( cloud_droplets ) THEN
	547	CALL exchange_horiz( ql, nbgp )
	548	CALL exchange_horiz( ql_c, nbgp )
	549	CALL exchange_horiz( ql_v, nbgp )
	550	CALL exchange_horiz( ql_vp, nbgp )
	551	ENDIF
[1831]	552	IF ( wang_kernel .OR. collision_turbulence .OR. &
	553	use_sgs_for_particles ) THEN
[1671]	554	CALL exchange_horiz( diss, nbgp )
	555	ENDIF
[1960]	556	IF ( passive_scalar ) CALL exchange_horiz( s_p, nbgp )
[1128]	557
	558	IF ( numprocs == 1 ) THEN ! workaround for single-core GPU runs
	559	on_device = .FALSE. ! to be removed after complete porting
	560	ELSE ! of ghost point exchange
	561	!$acc update device( e_p, pt_p, u_p, v_p, w_p )
	562	ENDIF
	563
	564	sendrecv_in_background = .FALSE.
	565
	566	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'pause' )
	567
	568	ENDIF
	569
[1171]	570	! i_left = nxl+nbgp; i_right = nxr-nbgp
	571	! j_south = nys; j_north = nys+nbgp-1
	572	! CALL prognostic_equations_acc
	573	! i_left = nxl+nbgp; i_right = nxr-nbgp
	574	! j_south = nyn-nbgp+1; j_north = nyn
	575	! CALL prognostic_equations_acc
[1128]	576
	577	IF ( background_communication ) THEN
	578	CALL cpu_log( log_point(41), 'exchange-horiz-wait', 'start' )
	579	#if defined( __parallel )
	580	CALL MPI_WAITALL( req_count, req, wait_stat, ierr )
	581	#endif
	582	CALL cpu_log( log_point(41), 'exchange-horiz-wait', 'pause' )
	583
	584	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'continue' )
	585
	586	send_receive = 'ns'
	587	sendrecv_in_background = .TRUE.
	588	req = 0
	589	req_count = 0
	590
	591	IF ( numprocs == 1 ) THEN ! workaround for single-core GPU runs
	592	on_device = .TRUE. ! to be removed after complete porting
	593	ELSE ! of ghost point exchange
	594	!$acc update host( e_p, pt_p, u_p, v_p, w_p )
	595	ENDIF
	596
	597	CALL exchange_horiz( u_p, nbgp )
	598	CALL exchange_horiz( v_p, nbgp )
	599	CALL exchange_horiz( w_p, nbgp )
	600	CALL exchange_horiz( pt_p, nbgp )
	601	IF ( .NOT. constant_diffusion ) CALL exchange_horiz( e_p, nbgp )
	602	IF ( ocean ) THEN
	603	CALL exchange_horiz( sa_p, nbgp )
	604	CALL exchange_horiz( rho, nbgp )
	605	CALL exchange_horiz( prho, nbgp )
	606	ENDIF
[1960]	607	IF ( humidity ) THEN
[1128]	608	CALL exchange_horiz( q_p, nbgp )
[1822]	609	IF ( cloud_physics .AND. microphysics_seifert ) THEN
[1128]	610	CALL exchange_horiz( qr_p, nbgp )
	611	CALL exchange_horiz( nr_p, nbgp )
	612	ENDIF
	613	ENDIF
	614	IF ( cloud_droplets ) THEN
	615	CALL exchange_horiz( ql, nbgp )
	616	CALL exchange_horiz( ql_c, nbgp )
	617	CALL exchange_horiz( ql_v, nbgp )
	618	CALL exchange_horiz( ql_vp, nbgp )
	619	ENDIF
[1831]	620	IF ( wang_kernel .OR. collision_turbulence .OR. &
	621	use_sgs_for_particles ) THEN
[1671]	622	CALL exchange_horiz( diss, nbgp )
	623	ENDIF
[1960]	624	IF ( passive_scalar ) CALL exchange_horiz( s_p, nbgp )
[1128]	625
	626	IF ( numprocs == 1 ) THEN ! workaround for single-core GPU runs
	627	on_device = .FALSE. ! to be removed after complete porting
	628	ELSE ! of ghost point exchange
	629	!$acc update device( e_p, pt_p, u_p, v_p, w_p )
	630	ENDIF
	631
	632	sendrecv_in_background = .FALSE.
	633
	634	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'stop' )
	635
	636	ENDIF
	637
[1171]	638	! i_left = nxl+nbgp; i_right = nxr-nbgp
	639	! j_south = nys+nbgp; j_north = nyn-nbgp
	640	! CALL prognostic_equations_acc
[1128]	641
	642	IF ( background_communication ) THEN
	643	CALL cpu_log( log_point(41), 'exchange-horiz-wait', 'continue' )
	644	#if defined( __parallel )
	645	CALL MPI_WAITALL( req_count, req, wait_stat, ierr )
	646	#endif
	647	send_receive = 'al'
	648	CALL cpu_log( log_point(41), 'exchange-horiz-wait', 'stop' )
	649	ENDIF
	650
[1]	651	ENDIF
	652
	653	!
[849]	654	!-- Particle transport/physics with the Lagrangian particle model
	655	!-- (only once during intermediate steps, because it uses an Euler-step)
[1128]	656	!-- ### particle model should be moved before prognostic_equations, in order
	657	!-- to regard droplet interactions directly
[63]	658	IF ( particle_advection .AND. &
	659	simulated_time >= particle_advection_start .AND. &
[1]	660	intermediate_timestep_count == 1 ) THEN
[849]	661	CALL lpm
	662	first_call_lpm = .FALSE.
[1]	663	ENDIF
	664
	665	!
	666	!-- Interaction of droplets with temperature and specific humidity.
	667	!-- Droplet condensation and evaporation is calculated within
	668	!-- advec_particles.
	669	IF ( cloud_droplets .AND. &
	670	intermediate_timestep_count == intermediate_timestep_count_max )&
	671	THEN
	672	CALL interaction_droplets_ptq
	673	ENDIF
	674
	675	!
	676	!-- Exchange of ghost points (lateral boundary conditions)
[1128]	677	IF ( .NOT. background_communication ) THEN
[1113]	678
[1128]	679	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'start' )
[1113]	680
[1128]	681	IF ( numprocs == 1 ) THEN ! workaround for single-core GPU runs
	682	on_device = .TRUE. ! to be removed after complete porting
	683	ELSE ! of ghost point exchange
	684	!$acc update host( e_p, pt_p, u_p, v_p, w_p )
[1053]	685	ENDIF
[1]	686
[1128]	687	CALL exchange_horiz( u_p, nbgp )
	688	CALL exchange_horiz( v_p, nbgp )
	689	CALL exchange_horiz( w_p, nbgp )
	690	CALL exchange_horiz( pt_p, nbgp )
	691	IF ( .NOT. constant_diffusion ) CALL exchange_horiz( e_p, nbgp )
	692	IF ( ocean ) THEN
	693	CALL exchange_horiz( sa_p, nbgp )
	694	CALL exchange_horiz( rho, nbgp )
	695	CALL exchange_horiz( prho, nbgp )
	696	ENDIF
[1960]	697	IF ( humidity ) THEN
[1128]	698	CALL exchange_horiz( q_p, nbgp )
[1822]	699	IF ( cloud_physics .AND. microphysics_seifert ) THEN
[1128]	700	CALL exchange_horiz( qr_p, nbgp )
	701	CALL exchange_horiz( nr_p, nbgp )
	702	ENDIF
	703	ENDIF
	704	IF ( cloud_droplets ) THEN
	705	CALL exchange_horiz( ql, nbgp )
	706	CALL exchange_horiz( ql_c, nbgp )
	707	CALL exchange_horiz( ql_v, nbgp )
	708	CALL exchange_horiz( ql_vp, nbgp )
	709	ENDIF
[1831]	710	IF ( wang_kernel .OR. collision_turbulence .OR. &
	711	use_sgs_for_particles ) THEN
[1671]	712	CALL exchange_horiz( diss, nbgp )
	713	ENDIF
[1960]	714	IF ( passive_scalar ) CALL exchange_horiz( s_p, nbgp )
[1128]	715
	716	IF ( numprocs == 1 ) THEN ! workaround for single-core GPU runs
	717	on_device = .FALSE. ! to be removed after complete porting
	718	ELSE ! of ghost point exchange
	719	!$acc update device( e_p, pt_p, u_p, v_p, w_p )
	720	ENDIF
	721
	722	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'stop' )
	723
[1113]	724	ENDIF
	725
[1]	726	!
	727	!-- Boundary conditions for the prognostic quantities (except of the
	728	!-- velocities at the outflow in case of a non-cyclic lateral wall)
[1113]	729	CALL boundary_conds
[1]	730
	731	!
[73]	732	!-- Swap the time levels in preparation for the next time step.
	733	CALL swap_timelevel
	734
[1764]	735	IF ( nested_run ) THEN
[1797]	736
[1764]	737	CALL cpu_log( log_point(60), 'nesting', 'start' )
[1762]	738	!
[1933]	739	!-- Domain nesting. The data transfer subroutines pmci_parent_datatrans
	740	!-- and pmci_child_datatrans are called inside the wrapper
[1797]	741	!-- subroutine pmci_datatrans according to the control parameters
	742	!-- nesting_mode and nesting_datatransfer_mode.
	743	!-- TO_DO: why is nesting_mode given as a parameter here?
	744	CALL pmci_datatrans( nesting_mode )
[1762]	745
[1933]	746	IF ( TRIM( nesting_mode ) == 'two-way' .OR. &
	747	nesting_mode == 'vertical' ) THEN
[1762]	748	!
[1933]	749	!-- Exchange_horiz is needed for all parent-domains after the
[1764]	750	!-- anterpolation
	751	CALL exchange_horiz( u, nbgp )
	752	CALL exchange_horiz( v, nbgp )
	753	CALL exchange_horiz( w, nbgp )
[1960]	754	IF ( .NOT. neutral ) CALL exchange_horiz( pt, nbgp )
	755	IF ( humidity ) CALL exchange_horiz( q, nbgp )
	756	IF ( passive_scalar ) CALL exchange_horiz( s, nbgp )
	757	IF ( .NOT. constant_diffusion ) CALL exchange_horiz( e, nbgp )
[1762]	758	ENDIF
	759	!
[1764]	760	!-- Correct the w top-BC in nest domains to ensure mass conservation.
[1933]	761	!-- This action must never be done for the root domain. Vertical
	762	!-- nesting implies mass conservation.
[1764]	763	IF ( nest_domain ) THEN
	764	CALL pmci_ensure_nest_mass_conservation
	765	ENDIF
	766
	767	CALL cpu_log( log_point(60), 'nesting', 'stop' )
	768
[1762]	769	ENDIF
	770
	771	!
[1]	772	!-- Temperature offset must be imposed at cyclic boundaries in x-direction
	773	!-- when a sloping surface is used
	774	IF ( sloping_surface ) THEN
[707]	775	IF ( nxl == 0 ) pt(:,:,nxlg:nxl-1) = pt(:,:,nxlg:nxl-1) - &
	776	pt_slope_offset
	777	IF ( nxr == nx ) pt(:,:,nxr+1:nxrg) = pt(:,:,nxr+1:nxrg) + &
	778	pt_slope_offset
[1]	779	ENDIF
	780
	781	!
[151]	782	!-- Impose a turbulent inflow using the recycling method
	783	IF ( turbulent_inflow ) CALL inflow_turbulence
	784
	785	!
[1]	786	!-- Impose a random perturbation on the horizontal velocity field
[106]	787	IF ( create_disturbances .AND. &
	788	( call_psolver_at_all_substeps .AND. &
[1]	789	intermediate_timestep_count == intermediate_timestep_count_max )&
[106]	790	.OR. ( .NOT. call_psolver_at_all_substeps .AND. &
	791	intermediate_timestep_count == 1 ) ) &
[1]	792	THEN
	793	time_disturb = time_disturb + dt_3d
	794	IF ( time_disturb >= dt_disturb ) THEN
[1111]	795	!$acc update host( u, v )
[1113]	796	IF ( numprocs == 1 ) on_device = .FALSE. ! workaround, remove later
[1736]	797	IF ( disturbance_energy_limit /= 0.0_wp .AND. &
	798	hom(nzb+5,1,pr_palm,0) < disturbance_energy_limit ) THEN
[75]	799	CALL disturb_field( nzb_u_inner, tend, u )
	800	CALL disturb_field( nzb_v_inner, tend, v )
[707]	801	ELSEIF ( .NOT. bc_lr_cyc .OR. .NOT. bc_ns_cyc ) THEN
[1]	802	!
	803	!-- Runs with a non-cyclic lateral wall need perturbations
	804	!-- near the inflow throughout the whole simulation
	805	dist_range = 1
[75]	806	CALL disturb_field( nzb_u_inner, tend, u )
	807	CALL disturb_field( nzb_v_inner, tend, v )
[1]	808	dist_range = 0
	809	ENDIF
[1113]	810	IF ( numprocs == 1 ) on_device = .TRUE. ! workaround, remove later
[1111]	811	!$acc update device( u, v )
[1]	812	time_disturb = time_disturb - dt_disturb
	813	ENDIF
	814	ENDIF
	815
	816	!
	817	!-- Reduce the velocity divergence via the equation for perturbation
	818	!-- pressure.
[106]	819	IF ( intermediate_timestep_count == 1 .OR. &
	820	call_psolver_at_all_substeps ) THEN
[1]	821	CALL pres
	822	ENDIF
	823
	824	!
	825	!-- If required, compute liquid water content
[1015]	826	IF ( cloud_physics ) THEN
	827	CALL calc_liquid_water_content
	828	!$acc update device( ql )
	829	ENDIF
[1115]	830	!
	831	!-- If required, compute virtual potential temperature
	832	IF ( humidity ) THEN
	833	CALL compute_vpt
	834	!$acc update device( vpt )
	835	ENDIF
[1585]	836
[1]	837	!
	838	!-- Compute the diffusion quantities
	839	IF ( .NOT. constant_diffusion ) THEN
	840
	841	!
[1276]	842	!-- Determine surface fluxes shf and qsws and surface values
	843	!-- pt_surface and q_surface in dependence on data from external
	844	!-- file LSF_DATA respectively
	845	IF ( ( large_scale_forcing .AND. lsf_surf ) .AND. &
	846	intermediate_timestep_count == intermediate_timestep_count_max )&
	847	THEN
	848	CALL ls_forcing_surf ( simulated_time )
	849	ENDIF
	850
	851	!
[1691]	852	!-- First the vertical fluxes in the surface (constant flux) layer are computed
	853	IF ( constant_flux_layer ) THEN
	854	CALL cpu_log( log_point(19), 'surface_layer_fluxes', 'start' )
	855	CALL surface_layer_fluxes
	856	CALL cpu_log( log_point(19), 'surface_layer_fluxes', 'stop' )
[1]	857	ENDIF
[1241]	858
[1]	859	!
[1691]	860	!-- If required, solve the energy balance for the surface and run soil
	861	!-- model
	862	IF ( land_surface .AND. simulated_time > skip_time_do_lsm) THEN
	863
	864	CALL cpu_log( log_point(54), 'land_surface', 'start' )
	865	CALL lsm_energy_balance
	866	CALL lsm_soil_model
	867	CALL cpu_log( log_point(54), 'land_surface', 'stop' )
	868	ENDIF
	869	!
[1]	870	!-- Compute the diffusion coefficients
	871	CALL cpu_log( log_point(17), 'diffusivities', 'start' )
[75]	872	IF ( .NOT. humidity ) THEN
[97]	873	IF ( ocean ) THEN
[388]	874	CALL diffusivities( prho, prho_reference )
[97]	875	ELSE
	876	CALL diffusivities( pt, pt_reference )
	877	ENDIF
[1]	878	ELSE
[97]	879	CALL diffusivities( vpt, pt_reference )
[1]	880	ENDIF
	881	CALL cpu_log( log_point(17), 'diffusivities', 'stop' )
	882
	883	ENDIF
	884
[1691]	885	!
	886	!-- If required, calculate radiative fluxes and heating rates
	887	IF ( radiation .AND. intermediate_timestep_count &
	888	== intermediate_timestep_count_max .AND. simulated_time > &
	889	skip_time_do_radiation ) THEN
	890
	891	time_radiation = time_radiation + dt_3d
	892
	893	IF ( time_radiation >= dt_radiation .OR. force_radiation_call ) &
	894	THEN
	895
	896	CALL cpu_log( log_point(50), 'radiation', 'start' )
	897
	898	IF ( .NOT. force_radiation_call ) THEN
	899	time_radiation = time_radiation - dt_radiation
	900	ENDIF
	901
	902	IF ( radiation_scheme == 'clear-sky' ) THEN
	903	CALL radiation_clearsky
	904	ELSEIF ( radiation_scheme == 'rrtmg' ) THEN
	905	CALL radiation_rrtmg
[1853]	906	ELSE
	907	CALL radiation_constant
[1691]	908	ENDIF
	909
	910	CALL cpu_log( log_point(50), 'radiation', 'stop' )
	911	ENDIF
	912	ENDIF
	913
[1]	914	ENDDO ! Intermediate step loop
	915
	916	!
	917	!-- Increase simulation time and output times
[1111]	918	nr_timesteps_this_run = nr_timesteps_this_run + 1
[291]	919	current_timestep_number = current_timestep_number + 1
	920	simulated_time = simulated_time + dt_3d
	921	simulated_time_chr = time_to_string( simulated_time )
	922	time_since_reference_point = simulated_time - coupling_start_time
	923
[1957]	924
	925
[1]	926	IF ( simulated_time >= skip_time_data_output_av ) THEN
	927	time_do_av = time_do_av + dt_3d
	928	ENDIF
	929	IF ( simulated_time >= skip_time_do2d_xy ) THEN
	930	time_do2d_xy = time_do2d_xy + dt_3d
	931	ENDIF
	932	IF ( simulated_time >= skip_time_do2d_xz ) THEN
	933	time_do2d_xz = time_do2d_xz + dt_3d
	934	ENDIF
	935	IF ( simulated_time >= skip_time_do2d_yz ) THEN
	936	time_do2d_yz = time_do2d_yz + dt_3d
	937	ENDIF
	938	IF ( simulated_time >= skip_time_do3d ) THEN
	939	time_do3d = time_do3d + dt_3d
	940	ENDIF
[410]	941	DO mid = 1, masks
	942	IF ( simulated_time >= skip_time_domask(mid) ) THEN
	943	time_domask(mid)= time_domask(mid) + dt_3d
	944	ENDIF
	945	ENDDO
[1]	946	time_dvrp = time_dvrp + dt_3d
	947	IF ( simulated_time >= skip_time_dosp ) THEN
	948	time_dosp = time_dosp + dt_3d
	949	ENDIF
	950	time_dots = time_dots + dt_3d
[849]	951	IF ( .NOT. first_call_lpm ) THEN
[1]	952	time_dopts = time_dopts + dt_3d
	953	ENDIF
	954	IF ( simulated_time >= skip_time_dopr ) THEN
	955	time_dopr = time_dopr + dt_3d
	956	ENDIF
	957	time_dopr_listing = time_dopr_listing + dt_3d
	958	time_run_control = time_run_control + dt_3d
	959
	960	!
[102]	961	!-- Data exchange between coupled models
[291]	962	IF ( coupling_mode /= 'uncoupled' .AND. run_coupled ) THEN
[102]	963	time_coupling = time_coupling + dt_3d
[343]	964
[108]	965	!
	966	!-- In case of model termination initiated by the local model
	967	!-- (terminate_coupled > 0), the coupler must be skipped because it would
	968	!-- cause an MPI intercomminucation hang.
	969	!-- If necessary, the coupler will be called at the beginning of the
	970	!-- next restart run.
	971	DO WHILE ( time_coupling >= dt_coupling .AND. terminate_coupled == 0 )
[102]	972	CALL surface_coupler
	973	time_coupling = time_coupling - dt_coupling
	974	ENDDO
	975	ENDIF
	976
	977	!
[46]	978	!-- Execute user-defined actions
	979	CALL user_actions( 'after_integration' )
	980
	981	!
[1]	982	!-- If Galilei transformation is used, determine the distance that the
	983	!-- model has moved so far
	984	IF ( galilei_transformation ) THEN
	985	advected_distance_x = advected_distance_x + u_gtrans * dt_3d
	986	advected_distance_y = advected_distance_y + v_gtrans * dt_3d
	987	ENDIF
	988
	989	!
	990	!-- Check, if restart is necessary (because cpu-time is expiring or
	991	!-- because it is forced by user) and set stop flag
[108]	992	!-- This call is skipped if the remote model has already initiated a restart.
	993	IF ( .NOT. terminate_run ) CALL check_for_restart
[1]	994
	995	!
	996	!-- Carry out statistical analysis and output at the requested output times.
	997	!-- The MOD function is used for calculating the output time counters (like
	998	!-- time_dopr) in order to regard a possible decrease of the output time
	999	!-- interval in case of restart runs
	1000
	1001	!
	1002	!-- Set a flag indicating that so far no statistics have been created
	1003	!-- for this time step
	1004	flow_statistics_called = .FALSE.
	1005
	1006	!
	1007	!-- If required, call flow_statistics for averaging in time
[1342]	1008	IF ( averaging_interval_pr /= 0.0_wp .AND. &
[1]	1009	( dt_dopr - time_dopr ) <= averaging_interval_pr .AND. &
	1010	simulated_time >= skip_time_dopr ) THEN
	1011	time_dopr_av = time_dopr_av + dt_3d
	1012	IF ( time_dopr_av >= dt_averaging_input_pr ) THEN
	1013	do_sum = .TRUE.
	1014	time_dopr_av = MOD( time_dopr_av, &
	1015	MAX( dt_averaging_input_pr, dt_3d ) )
	1016	ENDIF
	1017	ENDIF
	1018	IF ( do_sum ) CALL flow_statistics
	1019
	1020	!
[410]	1021	!-- Sum-up 3d-arrays for later output of time-averaged 2d/3d/masked data
[1342]	1022	IF ( averaging_interval /= 0.0_wp .AND. &
[1]	1023	( dt_data_output_av - time_do_av ) <= averaging_interval .AND. &
	1024	simulated_time >= skip_time_data_output_av ) &
	1025	THEN
	1026	time_do_sla = time_do_sla + dt_3d
	1027	IF ( time_do_sla >= dt_averaging_input ) THEN
	1028	CALL sum_up_3d_data
	1029	average_count_3d = average_count_3d + 1
	1030	time_do_sla = MOD( time_do_sla, MAX( dt_averaging_input, dt_3d ) )
	1031	ENDIF
	1032	ENDIF
	1033
	1034	!
	1035	!-- Calculate spectra for time averaging
[1342]	1036	IF ( averaging_interval_sp /= 0.0_wp .AND. &
[1]	1037	( dt_dosp - time_dosp ) <= averaging_interval_sp .AND. &
	1038	simulated_time >= skip_time_dosp ) THEN
	1039	time_dosp_av = time_dosp_av + dt_3d
	1040	IF ( time_dosp_av >= dt_averaging_input_pr ) THEN
	1041	CALL calc_spectra
	1042	time_dosp_av = MOD( time_dosp_av, &
	1043	MAX( dt_averaging_input_pr, dt_3d ) )
	1044	ENDIF
	1045	ENDIF
	1046
	1047	!
[1957]	1048	!-- Call flight module and output data
	1049	IF ( virtual_flight ) THEN
	1050	CALL flight_measurement
	1051	CALL data_output_flight
	1052	ENDIF
	1053
	1054	!
[1]	1055	!-- Profile output (ASCII) on file
	1056	IF ( time_dopr_listing >= dt_dopr_listing ) THEN
	1057	CALL print_1d
	1058	time_dopr_listing = MOD( time_dopr_listing, MAX( dt_dopr_listing, &
	1059	dt_3d ) )
	1060	ENDIF
	1061
	1062	!
	1063	!-- Graphic output for PROFIL
	1064	IF ( time_dopr >= dt_dopr ) THEN
	1065	IF ( dopr_n /= 0 ) CALL data_output_profiles
	1066	time_dopr = MOD( time_dopr, MAX( dt_dopr, dt_3d ) )
[1342]	1067	time_dopr_av = 0.0_wp ! due to averaging (see above)
[1]	1068	ENDIF
	1069
	1070	!
	1071	!-- Graphic output for time series
	1072	IF ( time_dots >= dt_dots ) THEN
[48]	1073	CALL data_output_tseries
[1]	1074	time_dots = MOD( time_dots, MAX( dt_dots, dt_3d ) )
	1075	ENDIF
	1076
	1077	!
	1078	!-- Output of spectra (formatted for use with PROFIL), in case of no
	1079	!-- time averaging, spectra has to be calculated before
	1080	IF ( time_dosp >= dt_dosp ) THEN
	1081	IF ( average_count_sp == 0 ) CALL calc_spectra
	1082	CALL data_output_spectra
	1083	time_dosp = MOD( time_dosp, MAX( dt_dosp, dt_3d ) )
	1084	ENDIF
	1085
	1086	!
	1087	!-- 2d-data output (cross-sections)
	1088	IF ( time_do2d_xy >= dt_do2d_xy ) THEN
	1089	CALL data_output_2d( 'xy', 0 )
	1090	time_do2d_xy = MOD( time_do2d_xy, MAX( dt_do2d_xy, dt_3d ) )
	1091	ENDIF
	1092	IF ( time_do2d_xz >= dt_do2d_xz ) THEN
	1093	CALL data_output_2d( 'xz', 0 )
	1094	time_do2d_xz = MOD( time_do2d_xz, MAX( dt_do2d_xz, dt_3d ) )
	1095	ENDIF
	1096	IF ( time_do2d_yz >= dt_do2d_yz ) THEN
	1097	CALL data_output_2d( 'yz', 0 )
	1098	time_do2d_yz = MOD( time_do2d_yz, MAX( dt_do2d_yz, dt_3d ) )
	1099	ENDIF
	1100
	1101	!
	1102	!-- 3d-data output (volume data)
	1103	IF ( time_do3d >= dt_do3d ) THEN
	1104	CALL data_output_3d( 0 )
	1105	time_do3d = MOD( time_do3d, MAX( dt_do3d, dt_3d ) )
	1106	ENDIF
	1107
	1108	!
[1783]	1109	!-- Masked data output
[410]	1110	DO mid = 1, masks
	1111	IF ( time_domask(mid) >= dt_domask(mid) ) THEN
	1112	CALL data_output_mask( 0 )
	1113	time_domask(mid) = MOD( time_domask(mid), &
	1114	MAX( dt_domask(mid), dt_3d ) )
	1115	ENDIF
	1116	ENDDO
	1117
	1118	!
	1119	!-- Output of time-averaged 2d/3d/masked data
[1]	1120	IF ( time_do_av >= dt_data_output_av ) THEN
	1121	CALL average_3d_data
	1122	CALL data_output_2d( 'xy', 1 )
	1123	CALL data_output_2d( 'xz', 1 )
	1124	CALL data_output_2d( 'yz', 1 )
	1125	CALL data_output_3d( 1 )
[410]	1126	DO mid = 1, masks
	1127	CALL data_output_mask( 1 )
	1128	ENDDO
[1]	1129	time_do_av = MOD( time_do_av, MAX( dt_data_output_av, dt_3d ) )
	1130	ENDIF
	1131
	1132	!
	1133	!-- Output of particle time series
[253]	1134	IF ( particle_advection ) THEN
	1135	IF ( time_dopts >= dt_dopts .OR. &
	1136	( simulated_time >= particle_advection_start .AND. &
[849]	1137	first_call_lpm ) ) THEN
[253]	1138	CALL data_output_ptseries
	1139	time_dopts = MOD( time_dopts, MAX( dt_dopts, dt_3d ) )
	1140	ENDIF
[1]	1141	ENDIF
	1142
	1143	!
	1144	!-- Output of dvrp-graphics (isosurface, particles, slicer)
	1145	#if defined( __dvrp_graphics )
	1146	CALL DVRP_LOG_EVENT( -2, current_timestep_number-1 )
	1147	#endif
	1148	IF ( time_dvrp >= dt_dvrp ) THEN
	1149	CALL data_output_dvrp
	1150	time_dvrp = MOD( time_dvrp, MAX( dt_dvrp, dt_3d ) )
	1151	ENDIF
	1152	#if defined( __dvrp_graphics )
	1153	CALL DVRP_LOG_EVENT( 2, current_timestep_number )
	1154	#endif
	1155
	1156	!
	1157	!-- If required, set the heat flux for the next time step at a random value
	1158	IF ( constant_heatflux .AND. random_heatflux ) CALL disturb_heatflux
	1159
	1160	!
	1161	!-- Execute user-defined actions
	1162	CALL user_actions( 'after_timestep' )
	1163
[1402]	1164	!
[1918]	1165	!-- Determine size of next time step. Save timestep dt_3d because it is
	1166	!-- newly calculated in routine timestep, but required further below for
	1167	!-- steering the run control output interval
	1168	dt_3d_old = dt_3d
	1169	CALL timestep
	1170
	1171	!
[1925]	1172	!-- Synchronize the timestep in case of nested run.
	1173	IF ( nested_run ) THEN
	1174	!
	1175	!-- Synchronize by unifying the time step.
	1176	!-- Global minimum of all time-steps is used for all.
	1177	CALL pmci_synchronize
	1178	ENDIF
	1179
	1180	!
[1918]	1181	!-- Computation and output of run control parameters.
	1182	!-- This is also done whenever perturbations have been imposed
	1183	IF ( time_run_control >= dt_run_control .OR. &
	1184	timestep_scheme(1:5) /= 'runge' .OR. disturbance_created ) &
	1185	THEN
	1186	! IF ( current_timestep_number == 1 ) THEN
	1187	! IF ( nxl < 7 .AND. nxr > 7 .AND. nys < 7 .AND. nyn > 7 ) THEN
	1188	! u(10,7,7) = 0.55
	1189	! ENDIF
	1190	! PRINT*, 'calculating minmax'
	1191	! CALL global_min_max( nzb, nzt+1, nysg, nyng, nxlg, nxrg, u, &
	1192	! 'abs', 0.0_wp, u_max, u_max_ijk )
	1193	! CALL global_min_max( nzb, nzt+1, nysg, nyng, nxlg, nxrg, v, &
	1194	! 'abs', 0.0_wp, v_max, v_max_ijk )
	1195	! CALL global_min_max( nzb, nzt+1, nysg, nyng, nxlg, nxrg, w, &
	1196	! 'abs', 0.0_wp, w_max, w_max_ijk )
	1197	! PRINT*, 'calculated u_max = ', u_max, ' myid = ', myid
	1198	! ENDIF
	1199	CALL run_control
	1200	IF ( time_run_control >= dt_run_control ) THEN
	1201	time_run_control = MOD( time_run_control, &
	1202	MAX( dt_run_control, dt_3d_old ) )
	1203	ENDIF
	1204	ENDIF
	1205
	1206	!
[1402]	1207	!-- Output elapsed simulated time in form of a progress bar on stdout
	1208	IF ( myid == 0 ) CALL output_progress_bar
	1209
[1]	1210	CALL cpu_log( log_point_s(10), 'timesteps', 'stop' )
	1211
[667]	1212
[1]	1213	ENDDO ! time loop
	1214
[1402]	1215	IF ( myid == 0 ) CALL finish_progress_bar
	1216
[1]	1217	#if defined( __dvrp_graphics )
	1218	CALL DVRP_LOG_EVENT( -2, current_timestep_number )
	1219	#endif
	1220
[1402]	1221	CALL location_message( 'finished time-stepping', .TRUE. )
[1384]	1222
[1]	1223	END SUBROUTINE time_integration

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