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source: palm/trunk/SOURCE/time_integration.f90 @ 2050

Last change on this file since 2050 was 2050, checked in by gronemeier, 7 years ago
Implement turbulent outflow condition
Property svn:keywords set to `Id`
File size: 47.5 KB

Rev	Line
[1682]	1	!> @file time_integration.f90
[2000]	2	!------------------------------------------------------------------------------!
[1036]	3	! This file is part of PALM.
	4	!
[2000]	5	! PALM is free software: you can redistribute it and/or modify it under the
	6	! terms of the GNU General Public License as published by the Free Software
	7	! Foundation, either version 3 of the License, or (at your option) any later
	8	! version.
[1036]	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	!
[1818]	17	! Copyright 1997-2016 Leibniz Universitaet Hannover
[2000]	18	!------------------------------------------------------------------------------!
[1036]	19	!
[484]	20	! Current revisions:
[1092]	21	! ------------------
[2050]	22	! Implement turbulent outflow condition
[1928]	23	!
[1366]	24	! Former revisions:
	25	! -----------------
	26	! $Id: time_integration.f90 2050 2016-11-08 15:00:55Z gronemeier $
	27	!
[2032]	28	! 2031 2016-10-21 15:11:58Z knoop
	29	! renamed variable rho to rho_ocean
	30	!
[2012]	31	! 2011 2016-09-19 17:29:57Z kanani
	32	! Flag urban_surface is now defined in module control_parameters,
	33	! removed commented CALLs of global_min_max.
	34	!
[2008]	35	! 2007 2016-08-24 15:47:17Z kanani
	36	! Added CALLs for new urban surface model
	37	!
[2001]	38	! 2000 2016-08-20 18:09:15Z knoop
	39	! Forced header and separation lines into 80 columns
	40	!
[1977]	41	! 1976 2016-07-27 13:28:04Z maronga
	42	! Simplified calls to radiation model
	43	!
[1961]	44	! 1960 2016-07-12 16:34:24Z suehring
	45	! Separate humidity and passive scalar
	46	!
[1958]	47	! 1957 2016-07-07 10:43:48Z suehring
	48	! flight module added
	49	!
[1933]	50	! 1919 2016-05-27 14:51:23Z raasch
	51	! Initial version of purely vertical nesting introduced.
[1928]	52	!
[1919]	53	! 1918 2016-05-27 14:35:57Z raasch
	54	! determination of time step moved to the end of the time step loop,
	55	! the first time step is now always calculated before the time step loop (i.e.
	56	! also in case of restart runs)
	57	!
[1917]	58	! 1914 2016-05-26 14:44:07Z witha
	59	! Added call for wind turbine model
	60	!
[1879]	61	! 1878 2016-04-19 12:30:36Z hellstea
	62	! Synchronization for nested runs rewritten
	63	!
[1854]	64	! 1853 2016-04-11 09:00:35Z maronga
	65	! Adjusted for use with radiation_scheme = constant
	66	!
[1851]	67	! 1849 2016-04-08 11:33:18Z hoffmann
	68	! Adapted for modularization of microphysics
	69	!
[1834]	70	! 1833 2016-04-07 14:23:03Z raasch
	71	! spectrum renamed spectra_mod, spectra related variables moved to spectra_mod
	72	!
[1832]	73	! 1831 2016-04-07 13:15:51Z hoffmann
	74	! turbulence renamed collision_turbulence
	75	!
[1823]	76	! 1822 2016-04-07 07:49:42Z hoffmann
	77	! icloud_scheme replaced by microphysics_*
	78	!
[1809]	79	! 1808 2016-04-05 19:44:00Z raasch
	80	! output message in case unscheduled radiation calls removed
	81	!
[1798]	82	! 1797 2016-03-21 16:50:28Z raasch
	83	! introduction of different datatransfer modes
	84	!
[1792]	85	! 1791 2016-03-11 10:41:25Z raasch
	86	! call of pmci_update_new removed
	87	!
[1787]	88	! 1786 2016-03-08 05:49:27Z raasch
	89	! +module spectrum
	90	!
[1784]	91	! 1783 2016-03-06 18:36:17Z raasch
	92	! switch back of netcdf data format for mask output moved to the mask output
	93	! routine
	94	!
[1782]	95	! 1781 2016-03-03 15:12:23Z raasch
	96	! some pmc calls removed at the beginning (before timeloop),
	97	! pmc initialization moved to the main program
	98	!
[1765]	99	! 1764 2016-02-28 12:45:19Z raasch
	100	! PMC_ACTIVE flags removed,
	101	! bugfix: nest synchronization after first call of timestep
	102	!
[1763]	103	! 1762 2016-02-25 12:31:13Z hellstea
	104	! Introduction of nested domain feature
	105	!
[1737]	106	! 1736 2015-12-04 08:56:33Z raasch
	107	! no perturbations added to total domain if energy limit has been set zero
	108	!
[1692]	109	! 1691 2015-10-26 16:17:44Z maronga
	110	! Added option for spin-ups without land surface and radiation models. Moved calls
	111	! for radiation and lan surface schemes.
	112	!
[1683]	113	! 1682 2015-10-07 23:56:08Z knoop
	114	! Code annotations made doxygen readable
	115	!
[1672]	116	! 1671 2015-09-25 03:29:37Z raasch
	117	! bugfix: ghostpoint exchange for array diss in case that sgs velocities are used
	118	! for particles
	119	!
[1586]	120	! 1585 2015-04-30 07:05:52Z maronga
	121	! Moved call of radiation scheme. Added support for RRTM
	122	!
[1552]	123	! 1551 2015-03-03 14:18:16Z maronga
	124	! Added interface for different radiation schemes.
	125	!
[1497]	126	! 1496 2014-12-02 17:25:50Z maronga
	127	! Added calls for the land surface model and radiation scheme
	128	!
[1403]	129	! 1402 2014-05-09 14:25:13Z raasch
	130	! location messages modified
	131	!
[1385]	132	! 1384 2014-05-02 14:31:06Z raasch
	133	! location messages added
	134	!
[1381]	135	! 1380 2014-04-28 12:40:45Z heinze
	136	! CALL of nudge_ref added
	137	! bc_pt_t_val and bc_q_t_val are updated in case nudging is used
	138	!
[1366]	139	! 1365 2014-04-22 15:03:56Z boeske
[1365]	140	! Reset sums_ls_l to zero at each timestep
	141	! +sums_ls_l
	142	! Calculation of reference state (previously in subroutine calc_mean_profile)
	143
[1343]	144	! 1342 2014-03-26 17:04:47Z kanani
	145	! REAL constants defined as wp-kind
	146	!
[1321]	147	! 1320 2014-03-20 08:40:49Z raasch
[1320]	148	! ONLY-attribute added to USE-statements,
	149	! kind-parameters added to all INTEGER and REAL declaration statements,
	150	! kinds are defined in new module kinds,
	151	! old module precision_kind is removed,
	152	! revision history before 2012 removed,
	153	! comment fields (!:) to be used for variable explanations added to
	154	! all variable declaration statements
[1319]	155	! 1318 2014-03-17 13:35:16Z raasch
	156	! module interfaces removed
	157	!
[1309]	158	! 1308 2014-03-13 14:58:42Z fricke
	159	! +netcdf_data_format_save
	160	! For masked data, parallel netcdf output is not tested so far, hence
	161	! netcdf_data_format is switched back to non-paralell output.
	162	!
[1277]	163	! 1276 2014-01-15 13:40:41Z heinze
	164	! Use LSF_DATA also in case of Dirichlet bottom boundary condition for scalars
	165	!
[1258]	166	! 1257 2013-11-08 15:18:40Z raasch
	167	! acc-update-host directive for timestep removed
	168	!
[1242]	169	! 1241 2013-10-30 11:36:58Z heinze
	170	! Generalize calc_mean_profile for wider use
	171	! Determine shf and qsws in dependence on data from LSF_DATA
	172	! Determine ug and vg in dependence on data from LSF_DATA
[1222]	173	! 1221 2013-09-10 08:59:13Z raasch
	174	! host update of arrays before timestep is called
	175	!
[1182]	176	! 1179 2013-06-14 05:57:58Z raasch
	177	! mean profiles for reference state are only calculated if required,
	178	! small bugfix for background communication
	179	!
[1172]	180	! 1171 2013-05-30 11:27:45Z raasch
	181	! split of prognostic_equations deactivated (comment lines), for the time being
	182	!
[1132]	183	! 1128 2013-04-12 06:19:32Z raasch
[1128]	184	! asynchronous transfer of ghost point data realized for acc-optimized version:
	185	! prognostic_equations are first called two times for those points required for
	186	! the left-right and north-south exchange, respectively, and then for the
	187	! remaining points,
	188	! those parts requiring global communication moved from prognostic_equations to
	189	! here
[392]	190	!
[1116]	191	! 1115 2013-03-26 18:16:16Z hoffmann
	192	! calculation of qr and nr is restricted to precipitation
	193	!
[1114]	194	! 1113 2013-03-10 02:48:14Z raasch
	195	! GPU-porting of boundary conditions,
	196	! openACC directives updated
	197	! formal parameter removed from routine boundary_conds
	198	!
[1112]	199	! 1111 2013-03-08 23:54:10Z raasch
	200	! +internal timestep counter for cpu statistics added,
	201	! openACC directives updated
	202	!
[1093]	203	! 1092 2013-02-02 11:24:22Z raasch
	204	! unused variables removed
	205	!
[1066]	206	! 1065 2012-11-22 17:42:36Z hoffmann
	207	! exchange of diss (dissipation rate) in case of turbulence = .TRUE. added
	208	!
[1054]	209	! 1053 2012-11-13 17:11:03Z hoffmann
	210	! exchange of ghost points for nr, qr added
	211	!
[1037]	212	! 1036 2012-10-22 13:43:42Z raasch
	213	! code put under GPL (PALM 3.9)
	214	!
[1020]	215	! 1019 2012-09-28 06:46:45Z raasch
	216	! non-optimized version of prognostic_equations removed
	217	!
[1017]	218	! 1015 2012-09-27 09:23:24Z raasch
	219	! +call of prognostic_equations_acc
	220	!
[1002]	221	! 1001 2012-09-13 14:08:46Z raasch
	222	! all actions concerning leapfrog- and upstream-spline-scheme removed
	223	!
[850]	224	! 849 2012-03-15 10:35:09Z raasch
	225	! advec_particles renamed lpm, first_call_advec_particles renamed first_call_lpm
	226	!
[826]	227	! 825 2012-02-19 03:03:44Z raasch
	228	! wang_collision_kernel renamed wang_kernel
	229	!
[1]	230	! Revision 1.1 1997/08/11 06:19:04 raasch
	231	! Initial revision
	232	!
	233	!
	234	! Description:
	235	! ------------
[1682]	236	!> Integration in time of the model equations, statistical analysis and graphic
	237	!> output
[1]	238	!------------------------------------------------------------------------------!
[1682]	239	SUBROUTINE time_integration
	240
[1]	241
[1320]	242	USE advec_ws, &
	243	ONLY: ws_statistics
	244
	245	USE arrays_3d, &
[1762]	246	ONLY: diss, dzu, e, e_p, nr_p, prho, pt, pt_p, pt_init, q_init, q, &
[2031]	247	ql, ql_c, ql_v, ql_vp, qr_p, q_p, ref_state, rho_ocean, s, s_p, sa_p, &
[1960]	248	tend, u, u_p, v, vpt, v_p, w, w_p
[1320]	249
[1365]	250	USE calc_mean_profile_mod, &
[1320]	251	ONLY: calc_mean_profile
	252
	253	USE control_parameters, &
	254	ONLY: advected_distance_x, advected_distance_y, average_count_3d, &
[1833]	255	averaging_interval, averaging_interval_pr, &
	256	bc_lr_cyc, bc_ns_cyc, bc_pt_t_val, &
[1380]	257	bc_q_t_val, call_psolver_at_all_substeps, cloud_droplets, &
[1691]	258	cloud_physics, constant_flux_layer, constant_heatflux, &
	259	create_disturbances, dopr_n, constant_diffusion, coupling_mode, &
	260	coupling_start_time, current_timestep_number, &
	261	disturbance_created, disturbance_energy_limit, dist_range, &
	262	do_sum, dt_3d, dt_averaging_input, dt_averaging_input_pr, &
	263	dt_coupling, dt_data_output_av, dt_disturb, dt_do2d_xy, &
	264	dt_do2d_xz, dt_do2d_yz, dt_do3d, dt_domask,dt_dopts, dt_dopr, &
[1833]	265	dt_dopr_listing, dt_dots, dt_dvrp, dt_run_control, &
[1320]	266	end_time, first_call_lpm, galilei_transformation, humidity, &
[1822]	267	intermediate_timestep_count, &
[1320]	268	intermediate_timestep_count_max, large_scale_forcing, &
[1822]	269	loop_optimization, lsf_surf, lsf_vert, masks, &
	270	microphysics_seifert, mid, nest_domain, &
[1783]	271	neutral, nr_timesteps_this_run, nudging, &
[1822]	272	ocean, on_device, passive_scalar, &
[1320]	273	prho_reference, pt_reference, pt_slope_offset, random_heatflux, &
	274	run_coupled, simulated_time, simulated_time_chr, &
	275	skip_time_do2d_xy, skip_time_do2d_xz, skip_time_do2d_yz, &
	276	skip_time_do3d, skip_time_domask, skip_time_dopr, &
[1833]	277	skip_time_data_output_av, sloping_surface, &
[1320]	278	stop_dt, terminate_coupled, terminate_run, timestep_scheme, &
	279	time_coupling, time_do2d_xy, time_do2d_xz, time_do2d_yz, &
	280	time_do3d, time_domask, time_dopr, time_dopr_av, &
	281	time_dopr_listing, time_dopts, time_dosp, time_dosp_av, &
	282	time_dots, time_do_av, time_do_sla, time_disturb, time_dvrp, &
[1496]	283	time_run_control, time_since_reference_point, &
[2050]	284	turbulent_inflow, turbulent_outflow, urban_surface, &
[2011]	285	use_initial_profile_as_reference, &
[1957]	286	use_single_reference_value, u_gtrans, v_gtrans, virtual_flight, &
	287	ws_scheme_mom, ws_scheme_sca
[1320]	288
	289	USE cpulog, &
	290	ONLY: cpu_log, log_point, log_point_s
	291
[1957]	292	USE flight_mod, &
	293	ONLY: flight_measurement
	294
	295
[1320]	296	USE indices, &
	297	ONLY: i_left, i_right, j_north, j_south, nbgp, nx, nxl, nxlg, nxr, &
[1918]	298	nxrg, nyn, nyng, nys, nysg, nzb, nzt, nzb_u_inner, nzb_v_inner
[1320]	299
	300	USE interaction_droplets_ptq_mod, &
	301	ONLY: interaction_droplets_ptq
	302
[1918]	303	USE interfaces
	304
[1320]	305	USE kinds
	306
[1496]	307	USE land_surface_model_mod, &
[1691]	308	ONLY: land_surface, lsm_energy_balance, lsm_soil_model, &
	309	skip_time_do_lsm
[1496]	310
[1320]	311	USE ls_forcing_mod, &
	312	ONLY: ls_forcing_surf, ls_forcing_vert
	313
[1849]	314	USE microphysics_mod, &
	315	ONLY: collision_turbulence
	316
[1365]	317	USE nudge_mod, &
[1380]	318	ONLY: calc_tnudge, nudge_ref
[1365]	319
[1320]	320	USE particle_attributes, &
[1671]	321	ONLY: particle_advection, particle_advection_start, &
	322	use_sgs_for_particles, wang_kernel
[1320]	323
[1]	324	USE pegrid
	325
[1762]	326	USE pmc_interface, &
[1933]	327	ONLY: nested_run, nesting_mode, pmci_datatrans, &
	328	pmci_ensure_nest_mass_conservation, pmci_synchronize
[1762]	329
[1320]	330	USE production_e_mod, &
	331	ONLY: production_e_init
	332
[1402]	333	USE progress_bar, &
	334	ONLY: finish_progress_bar, output_progress_bar
	335
[1320]	336	USE prognostic_equations_mod, &
	337	ONLY: prognostic_equations_acc, prognostic_equations_cache, &
	338	prognostic_equations_vector
	339
[1496]	340	USE radiation_model_mod, &
[1976]	341	ONLY: dt_radiation, force_radiation_call, radiation, radiation_control,&
	342	skip_time_do_radiation, time_radiation
[1496]	343
[1833]	344	USE spectra_mod, &
	345	ONLY: average_count_sp, averaging_interval_sp, calc_spectra, dt_dosp, &
	346	skip_time_dosp
[1786]	347
[1320]	348	USE statistics, &
[1918]	349	ONLY: flow_statistics_called, hom, pr_palm, sums_ls_l, u_max, &
	350	u_max_ijk, v_max, v_max_ijk, w_max, w_max_ijk
[1320]	351
[1691]	352	USE surface_layer_fluxes_mod, &
	353	ONLY: surface_layer_fluxes
	354
[2007]	355	USE urban_surface_mod, &
[2011]	356	ONLY: usm_material_heat_model, usm_material_model, &
[2007]	357	usm_radiation, usm_surface_energy_balance
	358
[1320]	359	USE user_actions_mod, &
	360	ONLY: user_actions
	361
[1914]	362	USE wind_turbine_model_mod, &
	363	ONLY: wind_turbine, wtm_forces
	364
[1]	365	IMPLICIT NONE
	366
[1682]	367	CHARACTER (LEN=9) :: time_to_string !<
[1]	368
[1918]	369	REAL(wp) :: dt_3d_old !< temporary storage of timestep to be used for
	370	!< steering of run control output interval
	371
[1]	372	!
[1918]	373	!-- At beginning determine the first time step
	374	CALL timestep
[667]	375
[1764]	376	!
	377	!-- Synchronize the timestep in case of nested run.
	378	IF ( nested_run ) THEN
[1878]	379	!
	380	!-- Synchronization by unifying the time step.
	381	!-- Global minimum of all time-steps is used for all.
	382	CALL pmci_synchronize
[1764]	383	ENDIF
	384
[1918]	385	!
	386	!-- Determine and print out the run control quantities before the first time
	387	!-- step of this run. For the initial run, some statistics (e.g. divergence)
	388	!-- need to be determined first.
	389	IF ( simulated_time == 0.0_wp ) CALL flow_statistics
[1]	390	CALL run_control
	391
[108]	392	!
	393	!-- Data exchange between coupled models in case that a call has been omitted
	394	!-- at the end of the previous run of a job chain.
[291]	395	IF ( coupling_mode /= 'uncoupled' .AND. run_coupled ) THEN
[108]	396	!
	397	!-- In case of model termination initiated by the local model the coupler
	398	!-- must not be called because this would again cause an MPI hang.
[1918]	399	DO WHILE ( time_coupling >= dt_coupling .AND. terminate_coupled == 0 )
[108]	400	CALL surface_coupler
	401	time_coupling = time_coupling - dt_coupling
	402	ENDDO
[1918]	403	IF (time_coupling == 0.0_wp .AND. &
	404	time_since_reference_point < dt_coupling ) &
[348]	405	THEN
	406	time_coupling = time_since_reference_point
	407	ENDIF
[108]	408	ENDIF
	409
[1]	410	#if defined( __dvrp_graphics )
	411	!
	412	!-- Time measurement with dvrp software
	413	CALL DVRP_LOG_EVENT( 2, current_timestep_number )
	414	#endif
	415
[1402]	416	CALL location_message( 'start with time-stepping', .TRUE. )
[1]	417	!
	418	!-- Start of the time loop
	419	DO WHILE ( simulated_time < end_time .AND. .NOT. stop_dt .AND. &
	420	.NOT. terminate_run )
	421
	422	CALL cpu_log( log_point_s(10), 'timesteps', 'start' )
[1221]	423
[1]	424	!
[1241]	425	!-- Determine ug, vg and w_subs in dependence on data from external file
	426	!-- LSF_DATA
[1365]	427	IF ( large_scale_forcing .AND. lsf_vert ) THEN
[1241]	428	CALL ls_forcing_vert ( simulated_time )
[1365]	429	sums_ls_l = 0.0_wp
[1241]	430	ENDIF
	431
	432	!
[1380]	433	!-- Set pt_init and q_init to the current profiles taken from
	434	!-- NUDGING_DATA
	435	IF ( nudging ) THEN
	436	CALL nudge_ref ( simulated_time )
	437	!
	438	!-- Store temperature gradient at the top boundary for possible Neumann
	439	!-- boundary condition
	440	bc_pt_t_val = ( pt_init(nzt+1) - pt_init(nzt) ) / dzu(nzt+1)
	441	bc_q_t_val = ( q_init(nzt+1) - q_init(nzt) ) / dzu(nzt+1)
	442	ENDIF
	443
	444	!
[1]	445	!-- Execute the user-defined actions
	446	CALL user_actions( 'before_timestep' )
	447
	448	!
[1914]	449	!-- Calculate forces by wind turbines
	450	IF ( wind_turbine ) THEN
	451
	452	CALL cpu_log( log_point(55), 'wind_turbine', 'start' )
	453
	454	CALL wtm_forces
	455
	456	CALL cpu_log( log_point(55), 'wind_turbine', 'stop' )
	457
	458	ENDIF
	459
	460	!
[1]	461	!-- Start of intermediate step loop
	462	intermediate_timestep_count = 0
	463	DO WHILE ( intermediate_timestep_count < &
	464	intermediate_timestep_count_max )
	465
	466	intermediate_timestep_count = intermediate_timestep_count + 1
	467
	468	!
	469	!-- Set the steering factors for the prognostic equations which depend
	470	!-- on the timestep scheme
	471	CALL timestep_scheme_steering
	472
	473	!
[1128]	474	!-- Calculate those variables needed in the tendency terms which need
	475	!-- global communication
[1179]	476	IF ( .NOT. use_single_reference_value .AND. &
	477	.NOT. use_initial_profile_as_reference ) THEN
	478	!
	479	!-- Horizontally averaged profiles to be used as reference state in
	480	!-- buoyancy terms (WARNING: only the respective last call of
	481	!-- calc_mean_profile defines the reference state!)
[1365]	482	IF ( .NOT. neutral ) THEN
	483	CALL calc_mean_profile( pt, 4 )
	484	ref_state(:) = hom(:,1,4,0) ! this is used in the buoyancy term
	485	ENDIF
	486	IF ( ocean ) THEN
[2031]	487	CALL calc_mean_profile( rho_ocean, 64 )
[1365]	488	ref_state(:) = hom(:,1,64,0)
	489	ENDIF
	490	IF ( humidity ) THEN
	491	CALL calc_mean_profile( vpt, 44 )
	492	ref_state(:) = hom(:,1,44,0)
	493	ENDIF
	494
[1179]	495	ENDIF
	496
[1128]	497	IF ( .NOT. constant_diffusion ) CALL production_e_init
	498	IF ( ( ws_scheme_mom .OR. ws_scheme_sca ) .AND. &
	499	intermediate_timestep_count == 1 ) CALL ws_statistics
[1365]	500	!
	501	!-- In case of nudging calculate current nudging time scale and horizontal
[1380]	502	!-- means of u, v, pt and q
[1365]	503	IF ( nudging ) THEN
	504	CALL calc_tnudge( simulated_time )
	505	CALL calc_mean_profile( u, 1 )
	506	CALL calc_mean_profile( v, 2 )
	507	CALL calc_mean_profile( pt, 4 )
	508	CALL calc_mean_profile( q, 41 )
	509	ENDIF
[1128]	510
	511	!
[1]	512	!-- Solve the prognostic equations. A fast cache optimized version with
	513	!-- only one single loop is used in case of Piascek-Williams advection
	514	!-- scheme. NEC vector machines use a different version, because
	515	!-- in the other versions a good vectorization is prohibited due to
	516	!-- inlining problems.
[1019]	517	IF ( loop_optimization == 'cache' ) THEN
	518	CALL prognostic_equations_cache
	519	ELSEIF ( loop_optimization == 'vector' ) THEN
[63]	520	CALL prognostic_equations_vector
[1015]	521	ELSEIF ( loop_optimization == 'acc' ) THEN
[1171]	522	i_left = nxl; i_right = nxr
	523	j_south = nys; j_north = nyn
	524	CALL prognostic_equations_acc
	525
	526	! i_left = nxl; i_right = nxl+nbgp-1
[1128]	527	! j_south = nys; j_north = nyn
	528	! CALL prognostic_equations_acc
[1171]	529	! i_left = nxr-nbgp+1; i_right = nxr
	530	! j_south = nys; j_north = nyn
	531	! CALL prognostic_equations_acc
[1128]	532
	533	!
	534	!-- Exchange of ghost points (lateral boundary conditions)
	535	IF ( background_communication ) THEN
	536
	537	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'start' )
	538
	539	send_receive = 'lr'
	540	sendrecv_in_background = .TRUE.
	541	req = 0
	542	req_count = 0
	543
	544	IF ( numprocs == 1 ) THEN ! workaround for single-core GPU runs
	545	on_device = .TRUE. ! to be removed after complete porting
	546	ELSE ! of ghost point exchange
	547	!$acc update host( e_p, pt_p, u_p, v_p, w_p )
	548	ENDIF
	549
	550	CALL exchange_horiz( u_p, nbgp )
	551	CALL exchange_horiz( v_p, nbgp )
	552	CALL exchange_horiz( w_p, nbgp )
	553	CALL exchange_horiz( pt_p, nbgp )
	554	IF ( .NOT. constant_diffusion ) CALL exchange_horiz( e_p, nbgp )
	555	IF ( ocean ) THEN
	556	CALL exchange_horiz( sa_p, nbgp )
[2031]	557	CALL exchange_horiz( rho_ocean, nbgp )
[1960]	558	CALL exchange_horiz( prho, nbgp )
[1128]	559	ENDIF
[1960]	560	IF ( humidity ) THEN
[1128]	561	CALL exchange_horiz( q_p, nbgp )
[1822]	562	IF ( cloud_physics .AND. microphysics_seifert ) THEN
[1128]	563	CALL exchange_horiz( qr_p, nbgp )
	564	CALL exchange_horiz( nr_p, nbgp )
	565	ENDIF
	566	ENDIF
	567	IF ( cloud_droplets ) THEN
	568	CALL exchange_horiz( ql, nbgp )
	569	CALL exchange_horiz( ql_c, nbgp )
	570	CALL exchange_horiz( ql_v, nbgp )
	571	CALL exchange_horiz( ql_vp, nbgp )
	572	ENDIF
[1831]	573	IF ( wang_kernel .OR. collision_turbulence .OR. &
	574	use_sgs_for_particles ) THEN
[1671]	575	CALL exchange_horiz( diss, nbgp )
	576	ENDIF
[1960]	577	IF ( passive_scalar ) CALL exchange_horiz( s_p, nbgp )
[1128]	578
	579	IF ( numprocs == 1 ) THEN ! workaround for single-core GPU runs
	580	on_device = .FALSE. ! to be removed after complete porting
	581	ELSE ! of ghost point exchange
	582	!$acc update device( e_p, pt_p, u_p, v_p, w_p )
	583	ENDIF
	584
	585	sendrecv_in_background = .FALSE.
	586
	587	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'pause' )
	588
	589	ENDIF
	590
[1171]	591	! i_left = nxl+nbgp; i_right = nxr-nbgp
	592	! j_south = nys; j_north = nys+nbgp-1
	593	! CALL prognostic_equations_acc
	594	! i_left = nxl+nbgp; i_right = nxr-nbgp
	595	! j_south = nyn-nbgp+1; j_north = nyn
	596	! CALL prognostic_equations_acc
[1128]	597
	598	IF ( background_communication ) THEN
	599	CALL cpu_log( log_point(41), 'exchange-horiz-wait', 'start' )
	600	#if defined( __parallel )
	601	CALL MPI_WAITALL( req_count, req, wait_stat, ierr )
	602	#endif
	603	CALL cpu_log( log_point(41), 'exchange-horiz-wait', 'pause' )
	604
	605	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'continue' )
	606
	607	send_receive = 'ns'
	608	sendrecv_in_background = .TRUE.
	609	req = 0
	610	req_count = 0
	611
	612	IF ( numprocs == 1 ) THEN ! workaround for single-core GPU runs
	613	on_device = .TRUE. ! to be removed after complete porting
	614	ELSE ! of ghost point exchange
	615	!$acc update host( e_p, pt_p, u_p, v_p, w_p )
	616	ENDIF
	617
	618	CALL exchange_horiz( u_p, nbgp )
	619	CALL exchange_horiz( v_p, nbgp )
	620	CALL exchange_horiz( w_p, nbgp )
	621	CALL exchange_horiz( pt_p, nbgp )
	622	IF ( .NOT. constant_diffusion ) CALL exchange_horiz( e_p, nbgp )
	623	IF ( ocean ) THEN
	624	CALL exchange_horiz( sa_p, nbgp )
[2031]	625	CALL exchange_horiz( rho_ocean, nbgp )
[1128]	626	CALL exchange_horiz( prho, nbgp )
	627	ENDIF
[1960]	628	IF ( humidity ) THEN
[1128]	629	CALL exchange_horiz( q_p, nbgp )
[1822]	630	IF ( cloud_physics .AND. microphysics_seifert ) THEN
[1128]	631	CALL exchange_horiz( qr_p, nbgp )
	632	CALL exchange_horiz( nr_p, nbgp )
	633	ENDIF
	634	ENDIF
	635	IF ( cloud_droplets ) THEN
	636	CALL exchange_horiz( ql, nbgp )
	637	CALL exchange_horiz( ql_c, nbgp )
	638	CALL exchange_horiz( ql_v, nbgp )
	639	CALL exchange_horiz( ql_vp, nbgp )
	640	ENDIF
[1831]	641	IF ( wang_kernel .OR. collision_turbulence .OR. &
	642	use_sgs_for_particles ) THEN
[1671]	643	CALL exchange_horiz( diss, nbgp )
	644	ENDIF
[1960]	645	IF ( passive_scalar ) CALL exchange_horiz( s_p, nbgp )
[1128]	646
	647	IF ( numprocs == 1 ) THEN ! workaround for single-core GPU runs
	648	on_device = .FALSE. ! to be removed after complete porting
	649	ELSE ! of ghost point exchange
	650	!$acc update device( e_p, pt_p, u_p, v_p, w_p )
	651	ENDIF
	652
	653	sendrecv_in_background = .FALSE.
	654
	655	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'stop' )
	656
	657	ENDIF
	658
[1171]	659	! i_left = nxl+nbgp; i_right = nxr-nbgp
	660	! j_south = nys+nbgp; j_north = nyn-nbgp
	661	! CALL prognostic_equations_acc
[1128]	662
	663	IF ( background_communication ) THEN
	664	CALL cpu_log( log_point(41), 'exchange-horiz-wait', 'continue' )
	665	#if defined( __parallel )
	666	CALL MPI_WAITALL( req_count, req, wait_stat, ierr )
	667	#endif
	668	send_receive = 'al'
	669	CALL cpu_log( log_point(41), 'exchange-horiz-wait', 'stop' )
	670	ENDIF
	671
[1]	672	ENDIF
	673
	674	!
[849]	675	!-- Particle transport/physics with the Lagrangian particle model
	676	!-- (only once during intermediate steps, because it uses an Euler-step)
[1128]	677	!-- ### particle model should be moved before prognostic_equations, in order
	678	!-- to regard droplet interactions directly
[63]	679	IF ( particle_advection .AND. &
	680	simulated_time >= particle_advection_start .AND. &
[1]	681	intermediate_timestep_count == 1 ) THEN
[849]	682	CALL lpm
	683	first_call_lpm = .FALSE.
[1]	684	ENDIF
	685
	686	!
	687	!-- Interaction of droplets with temperature and specific humidity.
	688	!-- Droplet condensation and evaporation is calculated within
	689	!-- advec_particles.
	690	IF ( cloud_droplets .AND. &
	691	intermediate_timestep_count == intermediate_timestep_count_max )&
	692	THEN
	693	CALL interaction_droplets_ptq
	694	ENDIF
	695
	696	!
	697	!-- Exchange of ghost points (lateral boundary conditions)
[1128]	698	IF ( .NOT. background_communication ) THEN
[1113]	699
[1128]	700	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'start' )
[1113]	701
[1128]	702	IF ( numprocs == 1 ) THEN ! workaround for single-core GPU runs
	703	on_device = .TRUE. ! to be removed after complete porting
	704	ELSE ! of ghost point exchange
	705	!$acc update host( e_p, pt_p, u_p, v_p, w_p )
[1053]	706	ENDIF
[1]	707
[1128]	708	CALL exchange_horiz( u_p, nbgp )
	709	CALL exchange_horiz( v_p, nbgp )
	710	CALL exchange_horiz( w_p, nbgp )
	711	CALL exchange_horiz( pt_p, nbgp )
	712	IF ( .NOT. constant_diffusion ) CALL exchange_horiz( e_p, nbgp )
	713	IF ( ocean ) THEN
	714	CALL exchange_horiz( sa_p, nbgp )
[2031]	715	CALL exchange_horiz( rho_ocean, nbgp )
[1128]	716	CALL exchange_horiz( prho, nbgp )
	717	ENDIF
[1960]	718	IF ( humidity ) THEN
[1128]	719	CALL exchange_horiz( q_p, nbgp )
[1822]	720	IF ( cloud_physics .AND. microphysics_seifert ) THEN
[1128]	721	CALL exchange_horiz( qr_p, nbgp )
	722	CALL exchange_horiz( nr_p, nbgp )
	723	ENDIF
	724	ENDIF
	725	IF ( cloud_droplets ) THEN
	726	CALL exchange_horiz( ql, nbgp )
	727	CALL exchange_horiz( ql_c, nbgp )
	728	CALL exchange_horiz( ql_v, nbgp )
	729	CALL exchange_horiz( ql_vp, nbgp )
	730	ENDIF
[1831]	731	IF ( wang_kernel .OR. collision_turbulence .OR. &
	732	use_sgs_for_particles ) THEN
[1671]	733	CALL exchange_horiz( diss, nbgp )
	734	ENDIF
[1960]	735	IF ( passive_scalar ) CALL exchange_horiz( s_p, nbgp )
[1128]	736
	737	IF ( numprocs == 1 ) THEN ! workaround for single-core GPU runs
	738	on_device = .FALSE. ! to be removed after complete porting
	739	ELSE ! of ghost point exchange
	740	!$acc update device( e_p, pt_p, u_p, v_p, w_p )
	741	ENDIF
	742
	743	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'stop' )
	744
[1113]	745	ENDIF
	746
[1]	747	!
	748	!-- Boundary conditions for the prognostic quantities (except of the
	749	!-- velocities at the outflow in case of a non-cyclic lateral wall)
[1113]	750	CALL boundary_conds
[1]	751
	752	!
[73]	753	!-- Swap the time levels in preparation for the next time step.
	754	CALL swap_timelevel
	755
[1764]	756	IF ( nested_run ) THEN
[1797]	757
[1764]	758	CALL cpu_log( log_point(60), 'nesting', 'start' )
[1762]	759	!
[1933]	760	!-- Domain nesting. The data transfer subroutines pmci_parent_datatrans
	761	!-- and pmci_child_datatrans are called inside the wrapper
[1797]	762	!-- subroutine pmci_datatrans according to the control parameters
	763	!-- nesting_mode and nesting_datatransfer_mode.
	764	!-- TO_DO: why is nesting_mode given as a parameter here?
	765	CALL pmci_datatrans( nesting_mode )
[1762]	766
[1933]	767	IF ( TRIM( nesting_mode ) == 'two-way' .OR. &
	768	nesting_mode == 'vertical' ) THEN
[1762]	769	!
[1933]	770	!-- Exchange_horiz is needed for all parent-domains after the
[1764]	771	!-- anterpolation
	772	CALL exchange_horiz( u, nbgp )
	773	CALL exchange_horiz( v, nbgp )
	774	CALL exchange_horiz( w, nbgp )
[1960]	775	IF ( .NOT. neutral ) CALL exchange_horiz( pt, nbgp )
	776	IF ( humidity ) CALL exchange_horiz( q, nbgp )
	777	IF ( passive_scalar ) CALL exchange_horiz( s, nbgp )
	778	IF ( .NOT. constant_diffusion ) CALL exchange_horiz( e, nbgp )
[1762]	779	ENDIF
	780	!
[1764]	781	!-- Correct the w top-BC in nest domains to ensure mass conservation.
[1933]	782	!-- This action must never be done for the root domain. Vertical
	783	!-- nesting implies mass conservation.
[1764]	784	IF ( nest_domain ) THEN
	785	CALL pmci_ensure_nest_mass_conservation
	786	ENDIF
	787
	788	CALL cpu_log( log_point(60), 'nesting', 'stop' )
	789
[1762]	790	ENDIF
	791
	792	!
[1]	793	!-- Temperature offset must be imposed at cyclic boundaries in x-direction
	794	!-- when a sloping surface is used
	795	IF ( sloping_surface ) THEN
[707]	796	IF ( nxl == 0 ) pt(:,:,nxlg:nxl-1) = pt(:,:,nxlg:nxl-1) - &
	797	pt_slope_offset
	798	IF ( nxr == nx ) pt(:,:,nxr+1:nxrg) = pt(:,:,nxr+1:nxrg) + &
	799	pt_slope_offset
[1]	800	ENDIF
	801
	802	!
[151]	803	!-- Impose a turbulent inflow using the recycling method
	804	IF ( turbulent_inflow ) CALL inflow_turbulence
	805
	806	!
[2050]	807	!-- Set values at outflow boundary using the special outflow condition
	808	IF ( turbulent_outflow ) CALL outflow_turbulence
	809
	810	!
[1]	811	!-- Impose a random perturbation on the horizontal velocity field
[106]	812	IF ( create_disturbances .AND. &
	813	( call_psolver_at_all_substeps .AND. &
[1]	814	intermediate_timestep_count == intermediate_timestep_count_max )&
[106]	815	.OR. ( .NOT. call_psolver_at_all_substeps .AND. &
	816	intermediate_timestep_count == 1 ) ) &
[1]	817	THEN
	818	time_disturb = time_disturb + dt_3d
	819	IF ( time_disturb >= dt_disturb ) THEN
[1111]	820	!$acc update host( u, v )
[1113]	821	IF ( numprocs == 1 ) on_device = .FALSE. ! workaround, remove later
[1736]	822	IF ( disturbance_energy_limit /= 0.0_wp .AND. &
	823	hom(nzb+5,1,pr_palm,0) < disturbance_energy_limit ) THEN
[75]	824	CALL disturb_field( nzb_u_inner, tend, u )
	825	CALL disturb_field( nzb_v_inner, tend, v )
[707]	826	ELSEIF ( .NOT. bc_lr_cyc .OR. .NOT. bc_ns_cyc ) THEN
[1]	827	!
	828	!-- Runs with a non-cyclic lateral wall need perturbations
	829	!-- near the inflow throughout the whole simulation
	830	dist_range = 1
[75]	831	CALL disturb_field( nzb_u_inner, tend, u )
	832	CALL disturb_field( nzb_v_inner, tend, v )
[1]	833	dist_range = 0
	834	ENDIF
[1113]	835	IF ( numprocs == 1 ) on_device = .TRUE. ! workaround, remove later
[1111]	836	!$acc update device( u, v )
[1]	837	time_disturb = time_disturb - dt_disturb
	838	ENDIF
	839	ENDIF
	840
	841	!
	842	!-- Reduce the velocity divergence via the equation for perturbation
	843	!-- pressure.
[106]	844	IF ( intermediate_timestep_count == 1 .OR. &
	845	call_psolver_at_all_substeps ) THEN
[1]	846	CALL pres
	847	ENDIF
	848
	849	!
	850	!-- If required, compute liquid water content
[1015]	851	IF ( cloud_physics ) THEN
	852	CALL calc_liquid_water_content
	853	!$acc update device( ql )
	854	ENDIF
[1115]	855	!
	856	!-- If required, compute virtual potential temperature
	857	IF ( humidity ) THEN
	858	CALL compute_vpt
	859	!$acc update device( vpt )
	860	ENDIF
[1585]	861
[1]	862	!
	863	!-- Compute the diffusion quantities
	864	IF ( .NOT. constant_diffusion ) THEN
	865
	866	!
[1276]	867	!-- Determine surface fluxes shf and qsws and surface values
	868	!-- pt_surface and q_surface in dependence on data from external
	869	!-- file LSF_DATA respectively
	870	IF ( ( large_scale_forcing .AND. lsf_surf ) .AND. &
	871	intermediate_timestep_count == intermediate_timestep_count_max )&
	872	THEN
	873	CALL ls_forcing_surf ( simulated_time )
	874	ENDIF
	875
	876	!
[1691]	877	!-- First the vertical fluxes in the surface (constant flux) layer are computed
	878	IF ( constant_flux_layer ) THEN
	879	CALL cpu_log( log_point(19), 'surface_layer_fluxes', 'start' )
	880	CALL surface_layer_fluxes
	881	CALL cpu_log( log_point(19), 'surface_layer_fluxes', 'stop' )
[1]	882	ENDIF
[1241]	883
[1]	884	!
[1691]	885	!-- If required, solve the energy balance for the surface and run soil
	886	!-- model
	887	IF ( land_surface .AND. simulated_time > skip_time_do_lsm) THEN
	888
	889	CALL cpu_log( log_point(54), 'land_surface', 'start' )
	890	CALL lsm_energy_balance
	891	CALL lsm_soil_model
	892	CALL cpu_log( log_point(54), 'land_surface', 'stop' )
	893	ENDIF
[2007]	894
[1691]	895	!
[2007]	896	!-- If required, solve the energy balance for urban surfaces and run
	897	!-- the material heat model
	898	IF (urban_surface) THEN
	899	CALL cpu_log( log_point(74), 'urban_surface', 'start' )
	900	CALL usm_surface_energy_balance
	901	IF ( usm_material_model ) THEN
	902	CALL usm_material_heat_model
	903	ENDIF
	904	CALL cpu_log( log_point(74), 'urban_surface', 'stop' )
	905	ENDIF
	906
	907	!
[1]	908	!-- Compute the diffusion coefficients
	909	CALL cpu_log( log_point(17), 'diffusivities', 'start' )
[75]	910	IF ( .NOT. humidity ) THEN
[97]	911	IF ( ocean ) THEN
[388]	912	CALL diffusivities( prho, prho_reference )
[97]	913	ELSE
	914	CALL diffusivities( pt, pt_reference )
	915	ENDIF
[1]	916	ELSE
[97]	917	CALL diffusivities( vpt, pt_reference )
[1]	918	ENDIF
	919	CALL cpu_log( log_point(17), 'diffusivities', 'stop' )
	920
	921	ENDIF
	922
[1691]	923	!
	924	!-- If required, calculate radiative fluxes and heating rates
	925	IF ( radiation .AND. intermediate_timestep_count &
	926	== intermediate_timestep_count_max .AND. simulated_time > &
	927	skip_time_do_radiation ) THEN
	928
	929	time_radiation = time_radiation + dt_3d
	930
	931	IF ( time_radiation >= dt_radiation .OR. force_radiation_call ) &
	932	THEN
	933
	934	CALL cpu_log( log_point(50), 'radiation', 'start' )
	935
	936	IF ( .NOT. force_radiation_call ) THEN
	937	time_radiation = time_radiation - dt_radiation
	938	ENDIF
	939
[1976]	940	CALL radiation_control
[1691]	941
	942	CALL cpu_log( log_point(50), 'radiation', 'stop' )
[2007]	943
	944	IF (urban_surface) THEN
	945	CALL cpu_log( log_point(75), 'usm_radiation', 'start' )
	946	CALL usm_radiation
	947	CALL cpu_log( log_point(75), 'usm_radiation', 'stop' )
	948	ENDIF
	949
[1691]	950	ENDIF
	951	ENDIF
	952
[1]	953	ENDDO ! Intermediate step loop
	954
	955	!
	956	!-- Increase simulation time and output times
[1111]	957	nr_timesteps_this_run = nr_timesteps_this_run + 1
[291]	958	current_timestep_number = current_timestep_number + 1
	959	simulated_time = simulated_time + dt_3d
	960	simulated_time_chr = time_to_string( simulated_time )
	961	time_since_reference_point = simulated_time - coupling_start_time
	962
[1957]	963
	964
[1]	965	IF ( simulated_time >= skip_time_data_output_av ) THEN
	966	time_do_av = time_do_av + dt_3d
	967	ENDIF
	968	IF ( simulated_time >= skip_time_do2d_xy ) THEN
	969	time_do2d_xy = time_do2d_xy + dt_3d
	970	ENDIF
	971	IF ( simulated_time >= skip_time_do2d_xz ) THEN
	972	time_do2d_xz = time_do2d_xz + dt_3d
	973	ENDIF
	974	IF ( simulated_time >= skip_time_do2d_yz ) THEN
	975	time_do2d_yz = time_do2d_yz + dt_3d
	976	ENDIF
	977	IF ( simulated_time >= skip_time_do3d ) THEN
	978	time_do3d = time_do3d + dt_3d
	979	ENDIF
[410]	980	DO mid = 1, masks
	981	IF ( simulated_time >= skip_time_domask(mid) ) THEN
	982	time_domask(mid)= time_domask(mid) + dt_3d
	983	ENDIF
	984	ENDDO
[1]	985	time_dvrp = time_dvrp + dt_3d
	986	IF ( simulated_time >= skip_time_dosp ) THEN
	987	time_dosp = time_dosp + dt_3d
	988	ENDIF
	989	time_dots = time_dots + dt_3d
[849]	990	IF ( .NOT. first_call_lpm ) THEN
[1]	991	time_dopts = time_dopts + dt_3d
	992	ENDIF
	993	IF ( simulated_time >= skip_time_dopr ) THEN
	994	time_dopr = time_dopr + dt_3d
	995	ENDIF
	996	time_dopr_listing = time_dopr_listing + dt_3d
	997	time_run_control = time_run_control + dt_3d
	998
	999	!
[102]	1000	!-- Data exchange between coupled models
[291]	1001	IF ( coupling_mode /= 'uncoupled' .AND. run_coupled ) THEN
[102]	1002	time_coupling = time_coupling + dt_3d
[343]	1003
[108]	1004	!
	1005	!-- In case of model termination initiated by the local model
	1006	!-- (terminate_coupled > 0), the coupler must be skipped because it would
	1007	!-- cause an MPI intercomminucation hang.
	1008	!-- If necessary, the coupler will be called at the beginning of the
	1009	!-- next restart run.
	1010	DO WHILE ( time_coupling >= dt_coupling .AND. terminate_coupled == 0 )
[102]	1011	CALL surface_coupler
	1012	time_coupling = time_coupling - dt_coupling
	1013	ENDDO
	1014	ENDIF
	1015
	1016	!
[46]	1017	!-- Execute user-defined actions
	1018	CALL user_actions( 'after_integration' )
	1019
	1020	!
[1]	1021	!-- If Galilei transformation is used, determine the distance that the
	1022	!-- model has moved so far
	1023	IF ( galilei_transformation ) THEN
	1024	advected_distance_x = advected_distance_x + u_gtrans * dt_3d
	1025	advected_distance_y = advected_distance_y + v_gtrans * dt_3d
	1026	ENDIF
	1027
	1028	!
	1029	!-- Check, if restart is necessary (because cpu-time is expiring or
	1030	!-- because it is forced by user) and set stop flag
[108]	1031	!-- This call is skipped if the remote model has already initiated a restart.
	1032	IF ( .NOT. terminate_run ) CALL check_for_restart
[1]	1033
	1034	!
	1035	!-- Carry out statistical analysis and output at the requested output times.
	1036	!-- The MOD function is used for calculating the output time counters (like
	1037	!-- time_dopr) in order to regard a possible decrease of the output time
	1038	!-- interval in case of restart runs
	1039
	1040	!
	1041	!-- Set a flag indicating that so far no statistics have been created
	1042	!-- for this time step
	1043	flow_statistics_called = .FALSE.
	1044
	1045	!
	1046	!-- If required, call flow_statistics for averaging in time
[1342]	1047	IF ( averaging_interval_pr /= 0.0_wp .AND. &
[1]	1048	( dt_dopr - time_dopr ) <= averaging_interval_pr .AND. &
	1049	simulated_time >= skip_time_dopr ) THEN
	1050	time_dopr_av = time_dopr_av + dt_3d
	1051	IF ( time_dopr_av >= dt_averaging_input_pr ) THEN
	1052	do_sum = .TRUE.
	1053	time_dopr_av = MOD( time_dopr_av, &
	1054	MAX( dt_averaging_input_pr, dt_3d ) )
	1055	ENDIF
	1056	ENDIF
	1057	IF ( do_sum ) CALL flow_statistics
	1058
	1059	!
[410]	1060	!-- Sum-up 3d-arrays for later output of time-averaged 2d/3d/masked data
[1342]	1061	IF ( averaging_interval /= 0.0_wp .AND. &
[1]	1062	( dt_data_output_av - time_do_av ) <= averaging_interval .AND. &
	1063	simulated_time >= skip_time_data_output_av ) &
	1064	THEN
	1065	time_do_sla = time_do_sla + dt_3d
	1066	IF ( time_do_sla >= dt_averaging_input ) THEN
	1067	CALL sum_up_3d_data
	1068	average_count_3d = average_count_3d + 1
	1069	time_do_sla = MOD( time_do_sla, MAX( dt_averaging_input, dt_3d ) )
	1070	ENDIF
	1071	ENDIF
	1072
	1073	!
	1074	!-- Calculate spectra for time averaging
[1342]	1075	IF ( averaging_interval_sp /= 0.0_wp .AND. &
[1]	1076	( dt_dosp - time_dosp ) <= averaging_interval_sp .AND. &
	1077	simulated_time >= skip_time_dosp ) THEN
	1078	time_dosp_av = time_dosp_av + dt_3d
	1079	IF ( time_dosp_av >= dt_averaging_input_pr ) THEN
	1080	CALL calc_spectra
	1081	time_dosp_av = MOD( time_dosp_av, &
	1082	MAX( dt_averaging_input_pr, dt_3d ) )
	1083	ENDIF
	1084	ENDIF
	1085
	1086	!
[1957]	1087	!-- Call flight module and output data
	1088	IF ( virtual_flight ) THEN
	1089	CALL flight_measurement
	1090	CALL data_output_flight
	1091	ENDIF
	1092
	1093	!
[1]	1094	!-- Profile output (ASCII) on file
	1095	IF ( time_dopr_listing >= dt_dopr_listing ) THEN
	1096	CALL print_1d
	1097	time_dopr_listing = MOD( time_dopr_listing, MAX( dt_dopr_listing, &
	1098	dt_3d ) )
	1099	ENDIF
	1100
	1101	!
	1102	!-- Graphic output for PROFIL
	1103	IF ( time_dopr >= dt_dopr ) THEN
	1104	IF ( dopr_n /= 0 ) CALL data_output_profiles
	1105	time_dopr = MOD( time_dopr, MAX( dt_dopr, dt_3d ) )
[1342]	1106	time_dopr_av = 0.0_wp ! due to averaging (see above)
[1]	1107	ENDIF
	1108
	1109	!
	1110	!-- Graphic output for time series
	1111	IF ( time_dots >= dt_dots ) THEN
[48]	1112	CALL data_output_tseries
[1]	1113	time_dots = MOD( time_dots, MAX( dt_dots, dt_3d ) )
	1114	ENDIF
	1115
	1116	!
	1117	!-- Output of spectra (formatted for use with PROFIL), in case of no
	1118	!-- time averaging, spectra has to be calculated before
	1119	IF ( time_dosp >= dt_dosp ) THEN
	1120	IF ( average_count_sp == 0 ) CALL calc_spectra
	1121	CALL data_output_spectra
	1122	time_dosp = MOD( time_dosp, MAX( dt_dosp, dt_3d ) )
	1123	ENDIF
	1124
	1125	!
	1126	!-- 2d-data output (cross-sections)
	1127	IF ( time_do2d_xy >= dt_do2d_xy ) THEN
	1128	CALL data_output_2d( 'xy', 0 )
	1129	time_do2d_xy = MOD( time_do2d_xy, MAX( dt_do2d_xy, dt_3d ) )
	1130	ENDIF
	1131	IF ( time_do2d_xz >= dt_do2d_xz ) THEN
	1132	CALL data_output_2d( 'xz', 0 )
	1133	time_do2d_xz = MOD( time_do2d_xz, MAX( dt_do2d_xz, dt_3d ) )
	1134	ENDIF
	1135	IF ( time_do2d_yz >= dt_do2d_yz ) THEN
	1136	CALL data_output_2d( 'yz', 0 )
	1137	time_do2d_yz = MOD( time_do2d_yz, MAX( dt_do2d_yz, dt_3d ) )
	1138	ENDIF
	1139
	1140	!
	1141	!-- 3d-data output (volume data)
	1142	IF ( time_do3d >= dt_do3d ) THEN
	1143	CALL data_output_3d( 0 )
	1144	time_do3d = MOD( time_do3d, MAX( dt_do3d, dt_3d ) )
	1145	ENDIF
	1146
	1147	!
[1783]	1148	!-- Masked data output
[410]	1149	DO mid = 1, masks
	1150	IF ( time_domask(mid) >= dt_domask(mid) ) THEN
	1151	CALL data_output_mask( 0 )
	1152	time_domask(mid) = MOD( time_domask(mid), &
	1153	MAX( dt_domask(mid), dt_3d ) )
	1154	ENDIF
	1155	ENDDO
	1156
	1157	!
	1158	!-- Output of time-averaged 2d/3d/masked data
[1]	1159	IF ( time_do_av >= dt_data_output_av ) THEN
	1160	CALL average_3d_data
	1161	CALL data_output_2d( 'xy', 1 )
	1162	CALL data_output_2d( 'xz', 1 )
	1163	CALL data_output_2d( 'yz', 1 )
	1164	CALL data_output_3d( 1 )
[410]	1165	DO mid = 1, masks
	1166	CALL data_output_mask( 1 )
	1167	ENDDO
[1]	1168	time_do_av = MOD( time_do_av, MAX( dt_data_output_av, dt_3d ) )
	1169	ENDIF
	1170
	1171	!
	1172	!-- Output of particle time series
[253]	1173	IF ( particle_advection ) THEN
	1174	IF ( time_dopts >= dt_dopts .OR. &
	1175	( simulated_time >= particle_advection_start .AND. &
[849]	1176	first_call_lpm ) ) THEN
[253]	1177	CALL data_output_ptseries
	1178	time_dopts = MOD( time_dopts, MAX( dt_dopts, dt_3d ) )
	1179	ENDIF
[1]	1180	ENDIF
	1181
	1182	!
	1183	!-- Output of dvrp-graphics (isosurface, particles, slicer)
	1184	#if defined( __dvrp_graphics )
	1185	CALL DVRP_LOG_EVENT( -2, current_timestep_number-1 )
	1186	#endif
	1187	IF ( time_dvrp >= dt_dvrp ) THEN
	1188	CALL data_output_dvrp
	1189	time_dvrp = MOD( time_dvrp, MAX( dt_dvrp, dt_3d ) )
	1190	ENDIF
	1191	#if defined( __dvrp_graphics )
	1192	CALL DVRP_LOG_EVENT( 2, current_timestep_number )
	1193	#endif
	1194
	1195	!
	1196	!-- If required, set the heat flux for the next time step at a random value
	1197	IF ( constant_heatflux .AND. random_heatflux ) CALL disturb_heatflux
	1198
	1199	!
	1200	!-- Execute user-defined actions
	1201	CALL user_actions( 'after_timestep' )
	1202
[1402]	1203	!
[1918]	1204	!-- Determine size of next time step. Save timestep dt_3d because it is
	1205	!-- newly calculated in routine timestep, but required further below for
	1206	!-- steering the run control output interval
	1207	dt_3d_old = dt_3d
	1208	CALL timestep
	1209
	1210	!
[1925]	1211	!-- Synchronize the timestep in case of nested run.
	1212	IF ( nested_run ) THEN
	1213	!
	1214	!-- Synchronize by unifying the time step.
	1215	!-- Global minimum of all time-steps is used for all.
	1216	CALL pmci_synchronize
	1217	ENDIF
	1218
	1219	!
[1918]	1220	!-- Computation and output of run control parameters.
	1221	!-- This is also done whenever perturbations have been imposed
	1222	IF ( time_run_control >= dt_run_control .OR. &
	1223	timestep_scheme(1:5) /= 'runge' .OR. disturbance_created ) &
	1224	THEN
	1225	CALL run_control
	1226	IF ( time_run_control >= dt_run_control ) THEN
	1227	time_run_control = MOD( time_run_control, &
	1228	MAX( dt_run_control, dt_3d_old ) )
	1229	ENDIF
	1230	ENDIF
	1231
	1232	!
[1402]	1233	!-- Output elapsed simulated time in form of a progress bar on stdout
	1234	IF ( myid == 0 ) CALL output_progress_bar
	1235
[1]	1236	CALL cpu_log( log_point_s(10), 'timesteps', 'stop' )
	1237
[667]	1238
[1]	1239	ENDDO ! time loop
	1240
[1402]	1241	IF ( myid == 0 ) CALL finish_progress_bar
	1242
[1]	1243	#if defined( __dvrp_graphics )
	1244	CALL DVRP_LOG_EVENT( -2, current_timestep_number )
	1245	#endif
	1246
[1402]	1247	CALL location_message( 'finished time-stepping', .TRUE. )
[1384]	1248
[1]	1249	END SUBROUTINE time_integration

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