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source: palm/trunk/SOURCE/time_integration.f90 @ 1990

Last change on this file since 1990 was 1977, checked in by maronga, 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	!
[1977]	22	!
[1366]	23	! Former revisions:
	24	! -----------------
	25	! $Id: time_integration.f90 1977 2016-07-27 13:28:18Z gronemeier $
	26	!
[1977]	27	! 1976 2016-07-27 13:28:04Z maronga
	28	! Simplified calls to radiation model
	29	!
[1961]	30	! 1960 2016-07-12 16:34:24Z suehring
	31	! Separate humidity and passive scalar
	32	!
[1958]	33	! 1957 2016-07-07 10:43:48Z suehring
	34	! flight module added
	35	!
[1933]	36	! 1919 2016-05-27 14:51:23Z raasch
	37	! Initial version of purely vertical nesting introduced.
[1928]	38	!
[1919]	39	! 1918 2016-05-27 14:35:57Z raasch
	40	! determination of time step moved to the end of the time step loop,
	41	! the first time step is now always calculated before the time step loop (i.e.
	42	! also in case of restart runs)
	43	!
[1917]	44	! 1914 2016-05-26 14:44:07Z witha
	45	! Added call for wind turbine model
	46	!
[1879]	47	! 1878 2016-04-19 12:30:36Z hellstea
	48	! Synchronization for nested runs rewritten
	49	!
[1854]	50	! 1853 2016-04-11 09:00:35Z maronga
	51	! Adjusted for use with radiation_scheme = constant
	52	!
[1851]	53	! 1849 2016-04-08 11:33:18Z hoffmann
	54	! Adapted for modularization of microphysics
	55	!
[1834]	56	! 1833 2016-04-07 14:23:03Z raasch
	57	! spectrum renamed spectra_mod, spectra related variables moved to spectra_mod
	58	!
[1832]	59	! 1831 2016-04-07 13:15:51Z hoffmann
	60	! turbulence renamed collision_turbulence
	61	!
[1823]	62	! 1822 2016-04-07 07:49:42Z hoffmann
	63	! icloud_scheme replaced by microphysics_*
	64	!
[1809]	65	! 1808 2016-04-05 19:44:00Z raasch
	66	! output message in case unscheduled radiation calls removed
	67	!
[1798]	68	! 1797 2016-03-21 16:50:28Z raasch
	69	! introduction of different datatransfer modes
	70	!
[1792]	71	! 1791 2016-03-11 10:41:25Z raasch
	72	! call of pmci_update_new removed
	73	!
[1787]	74	! 1786 2016-03-08 05:49:27Z raasch
	75	! +module spectrum
	76	!
[1784]	77	! 1783 2016-03-06 18:36:17Z raasch
	78	! switch back of netcdf data format for mask output moved to the mask output
	79	! routine
	80	!
[1782]	81	! 1781 2016-03-03 15:12:23Z raasch
	82	! some pmc calls removed at the beginning (before timeloop),
	83	! pmc initialization moved to the main program
	84	!
[1765]	85	! 1764 2016-02-28 12:45:19Z raasch
	86	! PMC_ACTIVE flags removed,
	87	! bugfix: nest synchronization after first call of timestep
	88	!
[1763]	89	! 1762 2016-02-25 12:31:13Z hellstea
	90	! Introduction of nested domain feature
	91	!
[1737]	92	! 1736 2015-12-04 08:56:33Z raasch
	93	! no perturbations added to total domain if energy limit has been set zero
	94	!
[1692]	95	! 1691 2015-10-26 16:17:44Z maronga
	96	! Added option for spin-ups without land surface and radiation models. Moved calls
	97	! for radiation and lan surface schemes.
	98	!
[1683]	99	! 1682 2015-10-07 23:56:08Z knoop
	100	! Code annotations made doxygen readable
	101	!
[1672]	102	! 1671 2015-09-25 03:29:37Z raasch
	103	! bugfix: ghostpoint exchange for array diss in case that sgs velocities are used
	104	! for particles
	105	!
[1586]	106	! 1585 2015-04-30 07:05:52Z maronga
	107	! Moved call of radiation scheme. Added support for RRTM
	108	!
[1552]	109	! 1551 2015-03-03 14:18:16Z maronga
	110	! Added interface for different radiation schemes.
	111	!
[1497]	112	! 1496 2014-12-02 17:25:50Z maronga
	113	! Added calls for the land surface model and radiation scheme
	114	!
[1403]	115	! 1402 2014-05-09 14:25:13Z raasch
	116	! location messages modified
	117	!
[1385]	118	! 1384 2014-05-02 14:31:06Z raasch
	119	! location messages added
	120	!
[1381]	121	! 1380 2014-04-28 12:40:45Z heinze
	122	! CALL of nudge_ref added
	123	! bc_pt_t_val and bc_q_t_val are updated in case nudging is used
	124	!
[1366]	125	! 1365 2014-04-22 15:03:56Z boeske
[1365]	126	! Reset sums_ls_l to zero at each timestep
	127	! +sums_ls_l
	128	! Calculation of reference state (previously in subroutine calc_mean_profile)
	129
[1343]	130	! 1342 2014-03-26 17:04:47Z kanani
	131	! REAL constants defined as wp-kind
	132	!
[1321]	133	! 1320 2014-03-20 08:40:49Z raasch
[1320]	134	! ONLY-attribute added to USE-statements,
	135	! kind-parameters added to all INTEGER and REAL declaration statements,
	136	! kinds are defined in new module kinds,
	137	! old module precision_kind is removed,
	138	! revision history before 2012 removed,
	139	! comment fields (!:) to be used for variable explanations added to
	140	! all variable declaration statements
[1319]	141	! 1318 2014-03-17 13:35:16Z raasch
	142	! module interfaces removed
	143	!
[1309]	144	! 1308 2014-03-13 14:58:42Z fricke
	145	! +netcdf_data_format_save
	146	! For masked data, parallel netcdf output is not tested so far, hence
	147	! netcdf_data_format is switched back to non-paralell output.
	148	!
[1277]	149	! 1276 2014-01-15 13:40:41Z heinze
	150	! Use LSF_DATA also in case of Dirichlet bottom boundary condition for scalars
	151	!
[1258]	152	! 1257 2013-11-08 15:18:40Z raasch
	153	! acc-update-host directive for timestep removed
	154	!
[1242]	155	! 1241 2013-10-30 11:36:58Z heinze
	156	! Generalize calc_mean_profile for wider use
	157	! Determine shf and qsws in dependence on data from LSF_DATA
	158	! Determine ug and vg in dependence on data from LSF_DATA
[1222]	159	! 1221 2013-09-10 08:59:13Z raasch
	160	! host update of arrays before timestep is called
	161	!
[1182]	162	! 1179 2013-06-14 05:57:58Z raasch
	163	! mean profiles for reference state are only calculated if required,
	164	! small bugfix for background communication
	165	!
[1172]	166	! 1171 2013-05-30 11:27:45Z raasch
	167	! split of prognostic_equations deactivated (comment lines), for the time being
	168	!
[1132]	169	! 1128 2013-04-12 06:19:32Z raasch
[1128]	170	! asynchronous transfer of ghost point data realized for acc-optimized version:
	171	! prognostic_equations are first called two times for those points required for
	172	! the left-right and north-south exchange, respectively, and then for the
	173	! remaining points,
	174	! those parts requiring global communication moved from prognostic_equations to
	175	! here
[392]	176	!
[1116]	177	! 1115 2013-03-26 18:16:16Z hoffmann
	178	! calculation of qr and nr is restricted to precipitation
	179	!
[1114]	180	! 1113 2013-03-10 02:48:14Z raasch
	181	! GPU-porting of boundary conditions,
	182	! openACC directives updated
	183	! formal parameter removed from routine boundary_conds
	184	!
[1112]	185	! 1111 2013-03-08 23:54:10Z raasch
	186	! +internal timestep counter for cpu statistics added,
	187	! openACC directives updated
	188	!
[1093]	189	! 1092 2013-02-02 11:24:22Z raasch
	190	! unused variables removed
	191	!
[1066]	192	! 1065 2012-11-22 17:42:36Z hoffmann
	193	! exchange of diss (dissipation rate) in case of turbulence = .TRUE. added
	194	!
[1054]	195	! 1053 2012-11-13 17:11:03Z hoffmann
	196	! exchange of ghost points for nr, qr added
	197	!
[1037]	198	! 1036 2012-10-22 13:43:42Z raasch
	199	! code put under GPL (PALM 3.9)
	200	!
[1020]	201	! 1019 2012-09-28 06:46:45Z raasch
	202	! non-optimized version of prognostic_equations removed
	203	!
[1017]	204	! 1015 2012-09-27 09:23:24Z raasch
	205	! +call of prognostic_equations_acc
	206	!
[1002]	207	! 1001 2012-09-13 14:08:46Z raasch
	208	! all actions concerning leapfrog- and upstream-spline-scheme removed
	209	!
[850]	210	! 849 2012-03-15 10:35:09Z raasch
	211	! advec_particles renamed lpm, first_call_advec_particles renamed first_call_lpm
	212	!
[826]	213	! 825 2012-02-19 03:03:44Z raasch
	214	! wang_collision_kernel renamed wang_kernel
	215	!
[1]	216	! Revision 1.1 1997/08/11 06:19:04 raasch
	217	! Initial revision
	218	!
	219	!
	220	! Description:
	221	! ------------
[1682]	222	!> Integration in time of the model equations, statistical analysis and graphic
	223	!> output
[1]	224	!------------------------------------------------------------------------------!
[1682]	225	SUBROUTINE time_integration
	226
[1]	227
[1320]	228	USE advec_ws, &
	229	ONLY: ws_statistics
	230
	231	USE arrays_3d, &
[1762]	232	ONLY: diss, dzu, e, e_p, nr_p, prho, pt, pt_p, pt_init, q_init, q, &
[1960]	233	ql, ql_c, ql_v, ql_vp, qr_p, q_p, ref_state, rho, s, s_p, sa_p, &
	234	tend, u, u_p, v, vpt, v_p, w, w_p
[1320]	235
[1365]	236	USE calc_mean_profile_mod, &
[1320]	237	ONLY: calc_mean_profile
	238
	239	USE control_parameters, &
	240	ONLY: advected_distance_x, advected_distance_y, average_count_3d, &
[1833]	241	averaging_interval, averaging_interval_pr, &
	242	bc_lr_cyc, bc_ns_cyc, bc_pt_t_val, &
[1380]	243	bc_q_t_val, call_psolver_at_all_substeps, cloud_droplets, &
[1691]	244	cloud_physics, constant_flux_layer, constant_heatflux, &
	245	create_disturbances, dopr_n, constant_diffusion, coupling_mode, &
	246	coupling_start_time, current_timestep_number, &
	247	disturbance_created, disturbance_energy_limit, dist_range, &
	248	do_sum, dt_3d, dt_averaging_input, dt_averaging_input_pr, &
	249	dt_coupling, dt_data_output_av, dt_disturb, dt_do2d_xy, &
	250	dt_do2d_xz, dt_do2d_yz, dt_do3d, dt_domask,dt_dopts, dt_dopr, &
[1833]	251	dt_dopr_listing, dt_dots, dt_dvrp, dt_run_control, &
[1320]	252	end_time, first_call_lpm, galilei_transformation, humidity, &
[1822]	253	intermediate_timestep_count, &
[1320]	254	intermediate_timestep_count_max, large_scale_forcing, &
[1822]	255	loop_optimization, lsf_surf, lsf_vert, masks, &
	256	microphysics_seifert, mid, nest_domain, &
[1783]	257	neutral, nr_timesteps_this_run, nudging, &
[1822]	258	ocean, on_device, passive_scalar, &
[1320]	259	prho_reference, pt_reference, pt_slope_offset, random_heatflux, &
	260	run_coupled, simulated_time, simulated_time_chr, &
	261	skip_time_do2d_xy, skip_time_do2d_xz, skip_time_do2d_yz, &
	262	skip_time_do3d, skip_time_domask, skip_time_dopr, &
[1833]	263	skip_time_data_output_av, sloping_surface, &
[1320]	264	stop_dt, terminate_coupled, terminate_run, timestep_scheme, &
	265	time_coupling, time_do2d_xy, time_do2d_xz, time_do2d_yz, &
	266	time_do3d, time_domask, time_dopr, time_dopr_av, &
	267	time_dopr_listing, time_dopts, time_dosp, time_dosp_av, &
	268	time_dots, time_do_av, time_do_sla, time_disturb, time_dvrp, &
[1496]	269	time_run_control, time_since_reference_point, &
[1320]	270	turbulent_inflow, use_initial_profile_as_reference, &
[1957]	271	use_single_reference_value, u_gtrans, v_gtrans, virtual_flight, &
	272	ws_scheme_mom, ws_scheme_sca
[1320]	273
	274	USE cpulog, &
	275	ONLY: cpu_log, log_point, log_point_s
	276
[1957]	277	USE flight_mod, &
	278	ONLY: flight_measurement
	279
	280
[1320]	281	USE indices, &
	282	ONLY: i_left, i_right, j_north, j_south, nbgp, nx, nxl, nxlg, nxr, &
[1918]	283	nxrg, nyn, nyng, nys, nysg, nzb, nzt, nzb_u_inner, nzb_v_inner
[1320]	284
	285	USE interaction_droplets_ptq_mod, &
	286	ONLY: interaction_droplets_ptq
	287
[1918]	288	USE interfaces
	289
[1320]	290	USE kinds
	291
[1496]	292	USE land_surface_model_mod, &
[1691]	293	ONLY: land_surface, lsm_energy_balance, lsm_soil_model, &
	294	skip_time_do_lsm
[1496]	295
[1320]	296	USE ls_forcing_mod, &
	297	ONLY: ls_forcing_surf, ls_forcing_vert
	298
[1849]	299	USE microphysics_mod, &
	300	ONLY: collision_turbulence
	301
[1365]	302	USE nudge_mod, &
[1380]	303	ONLY: calc_tnudge, nudge_ref
[1365]	304
[1320]	305	USE particle_attributes, &
[1671]	306	ONLY: particle_advection, particle_advection_start, &
	307	use_sgs_for_particles, wang_kernel
[1320]	308
[1]	309	USE pegrid
	310
[1762]	311	USE pmc_interface, &
[1933]	312	ONLY: nested_run, nesting_mode, pmci_datatrans, &
	313	pmci_ensure_nest_mass_conservation, pmci_synchronize
[1762]	314
[1320]	315	USE production_e_mod, &
	316	ONLY: production_e_init
	317
[1402]	318	USE progress_bar, &
	319	ONLY: finish_progress_bar, output_progress_bar
	320
[1320]	321	USE prognostic_equations_mod, &
	322	ONLY: prognostic_equations_acc, prognostic_equations_cache, &
	323	prognostic_equations_vector
	324
[1496]	325	USE radiation_model_mod, &
[1976]	326	ONLY: dt_radiation, force_radiation_call, radiation, radiation_control,&
	327	skip_time_do_radiation, time_radiation
[1496]	328
[1833]	329	USE spectra_mod, &
	330	ONLY: average_count_sp, averaging_interval_sp, calc_spectra, dt_dosp, &
	331	skip_time_dosp
[1786]	332
[1320]	333	USE statistics, &
[1918]	334	ONLY: flow_statistics_called, hom, pr_palm, sums_ls_l, u_max, &
	335	u_max_ijk, v_max, v_max_ijk, w_max, w_max_ijk
[1320]	336
[1691]	337	USE surface_layer_fluxes_mod, &
	338	ONLY: surface_layer_fluxes
	339
[1320]	340	USE user_actions_mod, &
	341	ONLY: user_actions
	342
[1914]	343	USE wind_turbine_model_mod, &
	344	ONLY: wind_turbine, wtm_forces
	345
[1]	346	IMPLICIT NONE
	347
[1682]	348	CHARACTER (LEN=9) :: time_to_string !<
[1]	349
[1918]	350	REAL(wp) :: dt_3d_old !< temporary storage of timestep to be used for
	351	!< steering of run control output interval
	352
[1]	353	!
[1918]	354	!-- At beginning determine the first time step
	355	CALL timestep
[667]	356
[1764]	357	!
	358	!-- Synchronize the timestep in case of nested run.
	359	IF ( nested_run ) THEN
[1878]	360	!
	361	!-- Synchronization by unifying the time step.
	362	!-- Global minimum of all time-steps is used for all.
	363	CALL pmci_synchronize
[1764]	364	ENDIF
	365
[1918]	366	!
	367	!-- Determine and print out the run control quantities before the first time
	368	!-- step of this run. For the initial run, some statistics (e.g. divergence)
	369	!-- need to be determined first.
	370	IF ( simulated_time == 0.0_wp ) CALL flow_statistics
[1]	371	CALL run_control
	372
[108]	373	!
	374	!-- Data exchange between coupled models in case that a call has been omitted
	375	!-- at the end of the previous run of a job chain.
[291]	376	IF ( coupling_mode /= 'uncoupled' .AND. run_coupled ) THEN
[108]	377	!
	378	!-- In case of model termination initiated by the local model the coupler
	379	!-- must not be called because this would again cause an MPI hang.
[1918]	380	DO WHILE ( time_coupling >= dt_coupling .AND. terminate_coupled == 0 )
[108]	381	CALL surface_coupler
	382	time_coupling = time_coupling - dt_coupling
	383	ENDDO
[1918]	384	IF (time_coupling == 0.0_wp .AND. &
	385	time_since_reference_point < dt_coupling ) &
[348]	386	THEN
	387	time_coupling = time_since_reference_point
	388	ENDIF
[108]	389	ENDIF
	390
[1]	391	#if defined( __dvrp_graphics )
	392	!
	393	!-- Time measurement with dvrp software
	394	CALL DVRP_LOG_EVENT( 2, current_timestep_number )
	395	#endif
	396
[1402]	397	CALL location_message( 'start with time-stepping', .TRUE. )
[1]	398	!
	399	!-- Start of the time loop
	400	DO WHILE ( simulated_time < end_time .AND. .NOT. stop_dt .AND. &
	401	.NOT. terminate_run )
	402
	403	CALL cpu_log( log_point_s(10), 'timesteps', 'start' )
[1221]	404
[1]	405	!
[1241]	406	!-- Determine ug, vg and w_subs in dependence on data from external file
	407	!-- LSF_DATA
[1365]	408	IF ( large_scale_forcing .AND. lsf_vert ) THEN
[1241]	409	CALL ls_forcing_vert ( simulated_time )
[1365]	410	sums_ls_l = 0.0_wp
[1241]	411	ENDIF
	412
	413	!
[1380]	414	!-- Set pt_init and q_init to the current profiles taken from
	415	!-- NUDGING_DATA
	416	IF ( nudging ) THEN
	417	CALL nudge_ref ( simulated_time )
	418	!
	419	!-- Store temperature gradient at the top boundary for possible Neumann
	420	!-- boundary condition
	421	bc_pt_t_val = ( pt_init(nzt+1) - pt_init(nzt) ) / dzu(nzt+1)
	422	bc_q_t_val = ( q_init(nzt+1) - q_init(nzt) ) / dzu(nzt+1)
	423	ENDIF
	424
	425	!
[1]	426	!-- Execute the user-defined actions
	427	CALL user_actions( 'before_timestep' )
	428
	429	!
[1914]	430	!-- Calculate forces by wind turbines
	431	IF ( wind_turbine ) THEN
	432
	433	CALL cpu_log( log_point(55), 'wind_turbine', 'start' )
	434
	435	CALL wtm_forces
	436
	437	CALL cpu_log( log_point(55), 'wind_turbine', 'stop' )
	438
	439	ENDIF
	440
	441	!
[1]	442	!-- Start of intermediate step loop
	443	intermediate_timestep_count = 0
	444	DO WHILE ( intermediate_timestep_count < &
	445	intermediate_timestep_count_max )
	446
	447	intermediate_timestep_count = intermediate_timestep_count + 1
	448
	449	!
	450	!-- Set the steering factors for the prognostic equations which depend
	451	!-- on the timestep scheme
	452	CALL timestep_scheme_steering
	453
	454	!
[1128]	455	!-- Calculate those variables needed in the tendency terms which need
	456	!-- global communication
[1179]	457	IF ( .NOT. use_single_reference_value .AND. &
	458	.NOT. use_initial_profile_as_reference ) THEN
	459	!
	460	!-- Horizontally averaged profiles to be used as reference state in
	461	!-- buoyancy terms (WARNING: only the respective last call of
	462	!-- calc_mean_profile defines the reference state!)
[1365]	463	IF ( .NOT. neutral ) THEN
	464	CALL calc_mean_profile( pt, 4 )
	465	ref_state(:) = hom(:,1,4,0) ! this is used in the buoyancy term
	466	ENDIF
	467	IF ( ocean ) THEN
	468	CALL calc_mean_profile( rho, 64 )
	469	ref_state(:) = hom(:,1,64,0)
	470	ENDIF
	471	IF ( humidity ) THEN
	472	CALL calc_mean_profile( vpt, 44 )
	473	ref_state(:) = hom(:,1,44,0)
	474	ENDIF
	475
[1179]	476	ENDIF
	477
[1128]	478	IF ( .NOT. constant_diffusion ) CALL production_e_init
	479	IF ( ( ws_scheme_mom .OR. ws_scheme_sca ) .AND. &
	480	intermediate_timestep_count == 1 ) CALL ws_statistics
[1365]	481	!
	482	!-- In case of nudging calculate current nudging time scale and horizontal
[1380]	483	!-- means of u, v, pt and q
[1365]	484	IF ( nudging ) THEN
	485	CALL calc_tnudge( simulated_time )
	486	CALL calc_mean_profile( u, 1 )
	487	CALL calc_mean_profile( v, 2 )
	488	CALL calc_mean_profile( pt, 4 )
	489	CALL calc_mean_profile( q, 41 )
	490	ENDIF
[1128]	491
	492	!
[1]	493	!-- Solve the prognostic equations. A fast cache optimized version with
	494	!-- only one single loop is used in case of Piascek-Williams advection
	495	!-- scheme. NEC vector machines use a different version, because
	496	!-- in the other versions a good vectorization is prohibited due to
	497	!-- inlining problems.
[1019]	498	IF ( loop_optimization == 'cache' ) THEN
	499	CALL prognostic_equations_cache
	500	ELSEIF ( loop_optimization == 'vector' ) THEN
[63]	501	CALL prognostic_equations_vector
[1015]	502	ELSEIF ( loop_optimization == 'acc' ) THEN
[1171]	503	i_left = nxl; i_right = nxr
	504	j_south = nys; j_north = nyn
	505	CALL prognostic_equations_acc
	506
	507	! i_left = nxl; i_right = nxl+nbgp-1
[1128]	508	! j_south = nys; j_north = nyn
	509	! CALL prognostic_equations_acc
[1171]	510	! i_left = nxr-nbgp+1; i_right = nxr
	511	! j_south = nys; j_north = nyn
	512	! CALL prognostic_equations_acc
[1128]	513
	514	!
	515	!-- Exchange of ghost points (lateral boundary conditions)
	516	IF ( background_communication ) THEN
	517
	518	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'start' )
	519
	520	send_receive = 'lr'
	521	sendrecv_in_background = .TRUE.
	522	req = 0
	523	req_count = 0
	524
	525	IF ( numprocs == 1 ) THEN ! workaround for single-core GPU runs
	526	on_device = .TRUE. ! to be removed after complete porting
	527	ELSE ! of ghost point exchange
	528	!$acc update host( e_p, pt_p, u_p, v_p, w_p )
	529	ENDIF
	530
	531	CALL exchange_horiz( u_p, nbgp )
	532	CALL exchange_horiz( v_p, nbgp )
	533	CALL exchange_horiz( w_p, nbgp )
	534	CALL exchange_horiz( pt_p, nbgp )
	535	IF ( .NOT. constant_diffusion ) CALL exchange_horiz( e_p, nbgp )
	536	IF ( ocean ) THEN
	537	CALL exchange_horiz( sa_p, nbgp )
	538	CALL exchange_horiz( rho, nbgp )
[1960]	539	CALL exchange_horiz( prho, nbgp )
[1128]	540	ENDIF
[1960]	541	IF ( humidity ) THEN
[1128]	542	CALL exchange_horiz( q_p, nbgp )
[1822]	543	IF ( cloud_physics .AND. microphysics_seifert ) THEN
[1128]	544	CALL exchange_horiz( qr_p, nbgp )
	545	CALL exchange_horiz( nr_p, nbgp )
	546	ENDIF
	547	ENDIF
	548	IF ( cloud_droplets ) THEN
	549	CALL exchange_horiz( ql, nbgp )
	550	CALL exchange_horiz( ql_c, nbgp )
	551	CALL exchange_horiz( ql_v, nbgp )
	552	CALL exchange_horiz( ql_vp, nbgp )
	553	ENDIF
[1831]	554	IF ( wang_kernel .OR. collision_turbulence .OR. &
	555	use_sgs_for_particles ) THEN
[1671]	556	CALL exchange_horiz( diss, nbgp )
	557	ENDIF
[1960]	558	IF ( passive_scalar ) CALL exchange_horiz( s_p, nbgp )
[1128]	559
	560	IF ( numprocs == 1 ) THEN ! workaround for single-core GPU runs
	561	on_device = .FALSE. ! to be removed after complete porting
	562	ELSE ! of ghost point exchange
	563	!$acc update device( e_p, pt_p, u_p, v_p, w_p )
	564	ENDIF
	565
	566	sendrecv_in_background = .FALSE.
	567
	568	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'pause' )
	569
	570	ENDIF
	571
[1171]	572	! i_left = nxl+nbgp; i_right = nxr-nbgp
	573	! j_south = nys; j_north = nys+nbgp-1
	574	! CALL prognostic_equations_acc
	575	! i_left = nxl+nbgp; i_right = nxr-nbgp
	576	! j_south = nyn-nbgp+1; j_north = nyn
	577	! CALL prognostic_equations_acc
[1128]	578
	579	IF ( background_communication ) THEN
	580	CALL cpu_log( log_point(41), 'exchange-horiz-wait', 'start' )
	581	#if defined( __parallel )
	582	CALL MPI_WAITALL( req_count, req, wait_stat, ierr )
	583	#endif
	584	CALL cpu_log( log_point(41), 'exchange-horiz-wait', 'pause' )
	585
	586	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'continue' )
	587
	588	send_receive = 'ns'
	589	sendrecv_in_background = .TRUE.
	590	req = 0
	591	req_count = 0
	592
	593	IF ( numprocs == 1 ) THEN ! workaround for single-core GPU runs
	594	on_device = .TRUE. ! to be removed after complete porting
	595	ELSE ! of ghost point exchange
	596	!$acc update host( e_p, pt_p, u_p, v_p, w_p )
	597	ENDIF
	598
	599	CALL exchange_horiz( u_p, nbgp )
	600	CALL exchange_horiz( v_p, nbgp )
	601	CALL exchange_horiz( w_p, nbgp )
	602	CALL exchange_horiz( pt_p, nbgp )
	603	IF ( .NOT. constant_diffusion ) CALL exchange_horiz( e_p, nbgp )
	604	IF ( ocean ) THEN
	605	CALL exchange_horiz( sa_p, nbgp )
	606	CALL exchange_horiz( rho, nbgp )
	607	CALL exchange_horiz( prho, nbgp )
	608	ENDIF
[1960]	609	IF ( humidity ) THEN
[1128]	610	CALL exchange_horiz( q_p, nbgp )
[1822]	611	IF ( cloud_physics .AND. microphysics_seifert ) THEN
[1128]	612	CALL exchange_horiz( qr_p, nbgp )
	613	CALL exchange_horiz( nr_p, nbgp )
	614	ENDIF
	615	ENDIF
	616	IF ( cloud_droplets ) THEN
	617	CALL exchange_horiz( ql, nbgp )
	618	CALL exchange_horiz( ql_c, nbgp )
	619	CALL exchange_horiz( ql_v, nbgp )
	620	CALL exchange_horiz( ql_vp, nbgp )
	621	ENDIF
[1831]	622	IF ( wang_kernel .OR. collision_turbulence .OR. &
	623	use_sgs_for_particles ) THEN
[1671]	624	CALL exchange_horiz( diss, nbgp )
	625	ENDIF
[1960]	626	IF ( passive_scalar ) CALL exchange_horiz( s_p, nbgp )
[1128]	627
	628	IF ( numprocs == 1 ) THEN ! workaround for single-core GPU runs
	629	on_device = .FALSE. ! to be removed after complete porting
	630	ELSE ! of ghost point exchange
	631	!$acc update device( e_p, pt_p, u_p, v_p, w_p )
	632	ENDIF
	633
	634	sendrecv_in_background = .FALSE.
	635
	636	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'stop' )
	637
	638	ENDIF
	639
[1171]	640	! i_left = nxl+nbgp; i_right = nxr-nbgp
	641	! j_south = nys+nbgp; j_north = nyn-nbgp
	642	! CALL prognostic_equations_acc
[1128]	643
	644	IF ( background_communication ) THEN
	645	CALL cpu_log( log_point(41), 'exchange-horiz-wait', 'continue' )
	646	#if defined( __parallel )
	647	CALL MPI_WAITALL( req_count, req, wait_stat, ierr )
	648	#endif
	649	send_receive = 'al'
	650	CALL cpu_log( log_point(41), 'exchange-horiz-wait', 'stop' )
	651	ENDIF
	652
[1]	653	ENDIF
	654
	655	!
[849]	656	!-- Particle transport/physics with the Lagrangian particle model
	657	!-- (only once during intermediate steps, because it uses an Euler-step)
[1128]	658	!-- ### particle model should be moved before prognostic_equations, in order
	659	!-- to regard droplet interactions directly
[63]	660	IF ( particle_advection .AND. &
	661	simulated_time >= particle_advection_start .AND. &
[1]	662	intermediate_timestep_count == 1 ) THEN
[849]	663	CALL lpm
	664	first_call_lpm = .FALSE.
[1]	665	ENDIF
	666
	667	!
	668	!-- Interaction of droplets with temperature and specific humidity.
	669	!-- Droplet condensation and evaporation is calculated within
	670	!-- advec_particles.
	671	IF ( cloud_droplets .AND. &
	672	intermediate_timestep_count == intermediate_timestep_count_max )&
	673	THEN
	674	CALL interaction_droplets_ptq
	675	ENDIF
	676
	677	!
	678	!-- Exchange of ghost points (lateral boundary conditions)
[1128]	679	IF ( .NOT. background_communication ) THEN
[1113]	680
[1128]	681	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'start' )
[1113]	682
[1128]	683	IF ( numprocs == 1 ) THEN ! workaround for single-core GPU runs
	684	on_device = .TRUE. ! to be removed after complete porting
	685	ELSE ! of ghost point exchange
	686	!$acc update host( e_p, pt_p, u_p, v_p, w_p )
[1053]	687	ENDIF
[1]	688
[1128]	689	CALL exchange_horiz( u_p, nbgp )
	690	CALL exchange_horiz( v_p, nbgp )
	691	CALL exchange_horiz( w_p, nbgp )
	692	CALL exchange_horiz( pt_p, nbgp )
	693	IF ( .NOT. constant_diffusion ) CALL exchange_horiz( e_p, nbgp )
	694	IF ( ocean ) THEN
	695	CALL exchange_horiz( sa_p, nbgp )
	696	CALL exchange_horiz( rho, nbgp )
	697	CALL exchange_horiz( prho, nbgp )
	698	ENDIF
[1960]	699	IF ( humidity ) THEN
[1128]	700	CALL exchange_horiz( q_p, nbgp )
[1822]	701	IF ( cloud_physics .AND. microphysics_seifert ) THEN
[1128]	702	CALL exchange_horiz( qr_p, nbgp )
	703	CALL exchange_horiz( nr_p, nbgp )
	704	ENDIF
	705	ENDIF
	706	IF ( cloud_droplets ) THEN
	707	CALL exchange_horiz( ql, nbgp )
	708	CALL exchange_horiz( ql_c, nbgp )
	709	CALL exchange_horiz( ql_v, nbgp )
	710	CALL exchange_horiz( ql_vp, nbgp )
	711	ENDIF
[1831]	712	IF ( wang_kernel .OR. collision_turbulence .OR. &
	713	use_sgs_for_particles ) THEN
[1671]	714	CALL exchange_horiz( diss, nbgp )
	715	ENDIF
[1960]	716	IF ( passive_scalar ) CALL exchange_horiz( s_p, nbgp )
[1128]	717
	718	IF ( numprocs == 1 ) THEN ! workaround for single-core GPU runs
	719	on_device = .FALSE. ! to be removed after complete porting
	720	ELSE ! of ghost point exchange
	721	!$acc update device( e_p, pt_p, u_p, v_p, w_p )
	722	ENDIF
	723
	724	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'stop' )
	725
[1113]	726	ENDIF
	727
[1]	728	!
	729	!-- Boundary conditions for the prognostic quantities (except of the
	730	!-- velocities at the outflow in case of a non-cyclic lateral wall)
[1113]	731	CALL boundary_conds
[1]	732
	733	!
[73]	734	!-- Swap the time levels in preparation for the next time step.
	735	CALL swap_timelevel
	736
[1764]	737	IF ( nested_run ) THEN
[1797]	738
[1764]	739	CALL cpu_log( log_point(60), 'nesting', 'start' )
[1762]	740	!
[1933]	741	!-- Domain nesting. The data transfer subroutines pmci_parent_datatrans
	742	!-- and pmci_child_datatrans are called inside the wrapper
[1797]	743	!-- subroutine pmci_datatrans according to the control parameters
	744	!-- nesting_mode and nesting_datatransfer_mode.
	745	!-- TO_DO: why is nesting_mode given as a parameter here?
	746	CALL pmci_datatrans( nesting_mode )
[1762]	747
[1933]	748	IF ( TRIM( nesting_mode ) == 'two-way' .OR. &
	749	nesting_mode == 'vertical' ) THEN
[1762]	750	!
[1933]	751	!-- Exchange_horiz is needed for all parent-domains after the
[1764]	752	!-- anterpolation
	753	CALL exchange_horiz( u, nbgp )
	754	CALL exchange_horiz( v, nbgp )
	755	CALL exchange_horiz( w, nbgp )
[1960]	756	IF ( .NOT. neutral ) CALL exchange_horiz( pt, nbgp )
	757	IF ( humidity ) CALL exchange_horiz( q, nbgp )
	758	IF ( passive_scalar ) CALL exchange_horiz( s, nbgp )
	759	IF ( .NOT. constant_diffusion ) CALL exchange_horiz( e, nbgp )
[1762]	760	ENDIF
	761	!
[1764]	762	!-- Correct the w top-BC in nest domains to ensure mass conservation.
[1933]	763	!-- This action must never be done for the root domain. Vertical
	764	!-- nesting implies mass conservation.
[1764]	765	IF ( nest_domain ) THEN
	766	CALL pmci_ensure_nest_mass_conservation
	767	ENDIF
	768
	769	CALL cpu_log( log_point(60), 'nesting', 'stop' )
	770
[1762]	771	ENDIF
	772
	773	!
[1]	774	!-- Temperature offset must be imposed at cyclic boundaries in x-direction
	775	!-- when a sloping surface is used
	776	IF ( sloping_surface ) THEN
[707]	777	IF ( nxl == 0 ) pt(:,:,nxlg:nxl-1) = pt(:,:,nxlg:nxl-1) - &
	778	pt_slope_offset
	779	IF ( nxr == nx ) pt(:,:,nxr+1:nxrg) = pt(:,:,nxr+1:nxrg) + &
	780	pt_slope_offset
[1]	781	ENDIF
	782
	783	!
[151]	784	!-- Impose a turbulent inflow using the recycling method
	785	IF ( turbulent_inflow ) CALL inflow_turbulence
	786
	787	!
[1]	788	!-- Impose a random perturbation on the horizontal velocity field
[106]	789	IF ( create_disturbances .AND. &
	790	( call_psolver_at_all_substeps .AND. &
[1]	791	intermediate_timestep_count == intermediate_timestep_count_max )&
[106]	792	.OR. ( .NOT. call_psolver_at_all_substeps .AND. &
	793	intermediate_timestep_count == 1 ) ) &
[1]	794	THEN
	795	time_disturb = time_disturb + dt_3d
	796	IF ( time_disturb >= dt_disturb ) THEN
[1111]	797	!$acc update host( u, v )
[1113]	798	IF ( numprocs == 1 ) on_device = .FALSE. ! workaround, remove later
[1736]	799	IF ( disturbance_energy_limit /= 0.0_wp .AND. &
	800	hom(nzb+5,1,pr_palm,0) < disturbance_energy_limit ) THEN
[75]	801	CALL disturb_field( nzb_u_inner, tend, u )
	802	CALL disturb_field( nzb_v_inner, tend, v )
[707]	803	ELSEIF ( .NOT. bc_lr_cyc .OR. .NOT. bc_ns_cyc ) THEN
[1]	804	!
	805	!-- Runs with a non-cyclic lateral wall need perturbations
	806	!-- near the inflow throughout the whole simulation
	807	dist_range = 1
[75]	808	CALL disturb_field( nzb_u_inner, tend, u )
	809	CALL disturb_field( nzb_v_inner, tend, v )
[1]	810	dist_range = 0
	811	ENDIF
[1113]	812	IF ( numprocs == 1 ) on_device = .TRUE. ! workaround, remove later
[1111]	813	!$acc update device( u, v )
[1]	814	time_disturb = time_disturb - dt_disturb
	815	ENDIF
	816	ENDIF
	817
	818	!
	819	!-- Reduce the velocity divergence via the equation for perturbation
	820	!-- pressure.
[106]	821	IF ( intermediate_timestep_count == 1 .OR. &
	822	call_psolver_at_all_substeps ) THEN
[1]	823	CALL pres
	824	ENDIF
	825
	826	!
	827	!-- If required, compute liquid water content
[1015]	828	IF ( cloud_physics ) THEN
	829	CALL calc_liquid_water_content
	830	!$acc update device( ql )
	831	ENDIF
[1115]	832	!
	833	!-- If required, compute virtual potential temperature
	834	IF ( humidity ) THEN
	835	CALL compute_vpt
	836	!$acc update device( vpt )
	837	ENDIF
[1585]	838
[1]	839	!
	840	!-- Compute the diffusion quantities
	841	IF ( .NOT. constant_diffusion ) THEN
	842
	843	!
[1276]	844	!-- Determine surface fluxes shf and qsws and surface values
	845	!-- pt_surface and q_surface in dependence on data from external
	846	!-- file LSF_DATA respectively
	847	IF ( ( large_scale_forcing .AND. lsf_surf ) .AND. &
	848	intermediate_timestep_count == intermediate_timestep_count_max )&
	849	THEN
	850	CALL ls_forcing_surf ( simulated_time )
	851	ENDIF
	852
	853	!
[1691]	854	!-- First the vertical fluxes in the surface (constant flux) layer are computed
	855	IF ( constant_flux_layer ) THEN
	856	CALL cpu_log( log_point(19), 'surface_layer_fluxes', 'start' )
	857	CALL surface_layer_fluxes
	858	CALL cpu_log( log_point(19), 'surface_layer_fluxes', 'stop' )
[1]	859	ENDIF
[1241]	860
[1]	861	!
[1691]	862	!-- If required, solve the energy balance for the surface and run soil
	863	!-- model
	864	IF ( land_surface .AND. simulated_time > skip_time_do_lsm) THEN
	865
	866	CALL cpu_log( log_point(54), 'land_surface', 'start' )
	867	CALL lsm_energy_balance
	868	CALL lsm_soil_model
	869	CALL cpu_log( log_point(54), 'land_surface', 'stop' )
	870	ENDIF
	871	!
[1]	872	!-- Compute the diffusion coefficients
	873	CALL cpu_log( log_point(17), 'diffusivities', 'start' )
[75]	874	IF ( .NOT. humidity ) THEN
[97]	875	IF ( ocean ) THEN
[388]	876	CALL diffusivities( prho, prho_reference )
[97]	877	ELSE
	878	CALL diffusivities( pt, pt_reference )
	879	ENDIF
[1]	880	ELSE
[97]	881	CALL diffusivities( vpt, pt_reference )
[1]	882	ENDIF
	883	CALL cpu_log( log_point(17), 'diffusivities', 'stop' )
	884
	885	ENDIF
	886
[1691]	887	!
	888	!-- If required, calculate radiative fluxes and heating rates
	889	IF ( radiation .AND. intermediate_timestep_count &
	890	== intermediate_timestep_count_max .AND. simulated_time > &
	891	skip_time_do_radiation ) THEN
	892
	893	time_radiation = time_radiation + dt_3d
	894
	895	IF ( time_radiation >= dt_radiation .OR. force_radiation_call ) &
	896	THEN
	897
	898	CALL cpu_log( log_point(50), 'radiation', 'start' )
	899
	900	IF ( .NOT. force_radiation_call ) THEN
	901	time_radiation = time_radiation - dt_radiation
	902	ENDIF
	903
[1976]	904	CALL radiation_control
[1691]	905
	906	CALL cpu_log( log_point(50), 'radiation', 'stop' )
	907	ENDIF
	908	ENDIF
	909
[1]	910	ENDDO ! Intermediate step loop
	911
	912	!
	913	!-- Increase simulation time and output times
[1111]	914	nr_timesteps_this_run = nr_timesteps_this_run + 1
[291]	915	current_timestep_number = current_timestep_number + 1
	916	simulated_time = simulated_time + dt_3d
	917	simulated_time_chr = time_to_string( simulated_time )
	918	time_since_reference_point = simulated_time - coupling_start_time
	919
[1957]	920
	921
[1]	922	IF ( simulated_time >= skip_time_data_output_av ) THEN
	923	time_do_av = time_do_av + dt_3d
	924	ENDIF
	925	IF ( simulated_time >= skip_time_do2d_xy ) THEN
	926	time_do2d_xy = time_do2d_xy + dt_3d
	927	ENDIF
	928	IF ( simulated_time >= skip_time_do2d_xz ) THEN
	929	time_do2d_xz = time_do2d_xz + dt_3d
	930	ENDIF
	931	IF ( simulated_time >= skip_time_do2d_yz ) THEN
	932	time_do2d_yz = time_do2d_yz + dt_3d
	933	ENDIF
	934	IF ( simulated_time >= skip_time_do3d ) THEN
	935	time_do3d = time_do3d + dt_3d
	936	ENDIF
[410]	937	DO mid = 1, masks
	938	IF ( simulated_time >= skip_time_domask(mid) ) THEN
	939	time_domask(mid)= time_domask(mid) + dt_3d
	940	ENDIF
	941	ENDDO
[1]	942	time_dvrp = time_dvrp + dt_3d
	943	IF ( simulated_time >= skip_time_dosp ) THEN
	944	time_dosp = time_dosp + dt_3d
	945	ENDIF
	946	time_dots = time_dots + dt_3d
[849]	947	IF ( .NOT. first_call_lpm ) THEN
[1]	948	time_dopts = time_dopts + dt_3d
	949	ENDIF
	950	IF ( simulated_time >= skip_time_dopr ) THEN
	951	time_dopr = time_dopr + dt_3d
	952	ENDIF
	953	time_dopr_listing = time_dopr_listing + dt_3d
	954	time_run_control = time_run_control + dt_3d
	955
	956	!
[102]	957	!-- Data exchange between coupled models
[291]	958	IF ( coupling_mode /= 'uncoupled' .AND. run_coupled ) THEN
[102]	959	time_coupling = time_coupling + dt_3d
[343]	960
[108]	961	!
	962	!-- In case of model termination initiated by the local model
	963	!-- (terminate_coupled > 0), the coupler must be skipped because it would
	964	!-- cause an MPI intercomminucation hang.
	965	!-- If necessary, the coupler will be called at the beginning of the
	966	!-- next restart run.
	967	DO WHILE ( time_coupling >= dt_coupling .AND. terminate_coupled == 0 )
[102]	968	CALL surface_coupler
	969	time_coupling = time_coupling - dt_coupling
	970	ENDDO
	971	ENDIF
	972
	973	!
[46]	974	!-- Execute user-defined actions
	975	CALL user_actions( 'after_integration' )
	976
	977	!
[1]	978	!-- If Galilei transformation is used, determine the distance that the
	979	!-- model has moved so far
	980	IF ( galilei_transformation ) THEN
	981	advected_distance_x = advected_distance_x + u_gtrans * dt_3d
	982	advected_distance_y = advected_distance_y + v_gtrans * dt_3d
	983	ENDIF
	984
	985	!
	986	!-- Check, if restart is necessary (because cpu-time is expiring or
	987	!-- because it is forced by user) and set stop flag
[108]	988	!-- This call is skipped if the remote model has already initiated a restart.
	989	IF ( .NOT. terminate_run ) CALL check_for_restart
[1]	990
	991	!
	992	!-- Carry out statistical analysis and output at the requested output times.
	993	!-- The MOD function is used for calculating the output time counters (like
	994	!-- time_dopr) in order to regard a possible decrease of the output time
	995	!-- interval in case of restart runs
	996
	997	!
	998	!-- Set a flag indicating that so far no statistics have been created
	999	!-- for this time step
	1000	flow_statistics_called = .FALSE.
	1001
	1002	!
	1003	!-- If required, call flow_statistics for averaging in time
[1342]	1004	IF ( averaging_interval_pr /= 0.0_wp .AND. &
[1]	1005	( dt_dopr - time_dopr ) <= averaging_interval_pr .AND. &
	1006	simulated_time >= skip_time_dopr ) THEN
	1007	time_dopr_av = time_dopr_av + dt_3d
	1008	IF ( time_dopr_av >= dt_averaging_input_pr ) THEN
	1009	do_sum = .TRUE.
	1010	time_dopr_av = MOD( time_dopr_av, &
	1011	MAX( dt_averaging_input_pr, dt_3d ) )
	1012	ENDIF
	1013	ENDIF
	1014	IF ( do_sum ) CALL flow_statistics
	1015
	1016	!
[410]	1017	!-- Sum-up 3d-arrays for later output of time-averaged 2d/3d/masked data
[1342]	1018	IF ( averaging_interval /= 0.0_wp .AND. &
[1]	1019	( dt_data_output_av - time_do_av ) <= averaging_interval .AND. &
	1020	simulated_time >= skip_time_data_output_av ) &
	1021	THEN
	1022	time_do_sla = time_do_sla + dt_3d
	1023	IF ( time_do_sla >= dt_averaging_input ) THEN
	1024	CALL sum_up_3d_data
	1025	average_count_3d = average_count_3d + 1
	1026	time_do_sla = MOD( time_do_sla, MAX( dt_averaging_input, dt_3d ) )
	1027	ENDIF
	1028	ENDIF
	1029
	1030	!
	1031	!-- Calculate spectra for time averaging
[1342]	1032	IF ( averaging_interval_sp /= 0.0_wp .AND. &
[1]	1033	( dt_dosp - time_dosp ) <= averaging_interval_sp .AND. &
	1034	simulated_time >= skip_time_dosp ) THEN
	1035	time_dosp_av = time_dosp_av + dt_3d
	1036	IF ( time_dosp_av >= dt_averaging_input_pr ) THEN
	1037	CALL calc_spectra
	1038	time_dosp_av = MOD( time_dosp_av, &
	1039	MAX( dt_averaging_input_pr, dt_3d ) )
	1040	ENDIF
	1041	ENDIF
	1042
	1043	!
[1957]	1044	!-- Call flight module and output data
	1045	IF ( virtual_flight ) THEN
	1046	CALL flight_measurement
	1047	CALL data_output_flight
	1048	ENDIF
	1049
	1050	!
[1]	1051	!-- Profile output (ASCII) on file
	1052	IF ( time_dopr_listing >= dt_dopr_listing ) THEN
	1053	CALL print_1d
	1054	time_dopr_listing = MOD( time_dopr_listing, MAX( dt_dopr_listing, &
	1055	dt_3d ) )
	1056	ENDIF
	1057
	1058	!
	1059	!-- Graphic output for PROFIL
	1060	IF ( time_dopr >= dt_dopr ) THEN
	1061	IF ( dopr_n /= 0 ) CALL data_output_profiles
	1062	time_dopr = MOD( time_dopr, MAX( dt_dopr, dt_3d ) )
[1342]	1063	time_dopr_av = 0.0_wp ! due to averaging (see above)
[1]	1064	ENDIF
	1065
	1066	!
	1067	!-- Graphic output for time series
	1068	IF ( time_dots >= dt_dots ) THEN
[48]	1069	CALL data_output_tseries
[1]	1070	time_dots = MOD( time_dots, MAX( dt_dots, dt_3d ) )
	1071	ENDIF
	1072
	1073	!
	1074	!-- Output of spectra (formatted for use with PROFIL), in case of no
	1075	!-- time averaging, spectra has to be calculated before
	1076	IF ( time_dosp >= dt_dosp ) THEN
	1077	IF ( average_count_sp == 0 ) CALL calc_spectra
	1078	CALL data_output_spectra
	1079	time_dosp = MOD( time_dosp, MAX( dt_dosp, dt_3d ) )
	1080	ENDIF
	1081
	1082	!
	1083	!-- 2d-data output (cross-sections)
	1084	IF ( time_do2d_xy >= dt_do2d_xy ) THEN
	1085	CALL data_output_2d( 'xy', 0 )
	1086	time_do2d_xy = MOD( time_do2d_xy, MAX( dt_do2d_xy, dt_3d ) )
	1087	ENDIF
	1088	IF ( time_do2d_xz >= dt_do2d_xz ) THEN
	1089	CALL data_output_2d( 'xz', 0 )
	1090	time_do2d_xz = MOD( time_do2d_xz, MAX( dt_do2d_xz, dt_3d ) )
	1091	ENDIF
	1092	IF ( time_do2d_yz >= dt_do2d_yz ) THEN
	1093	CALL data_output_2d( 'yz', 0 )
	1094	time_do2d_yz = MOD( time_do2d_yz, MAX( dt_do2d_yz, dt_3d ) )
	1095	ENDIF
	1096
	1097	!
	1098	!-- 3d-data output (volume data)
	1099	IF ( time_do3d >= dt_do3d ) THEN
	1100	CALL data_output_3d( 0 )
	1101	time_do3d = MOD( time_do3d, MAX( dt_do3d, dt_3d ) )
	1102	ENDIF
	1103
	1104	!
[1783]	1105	!-- Masked data output
[410]	1106	DO mid = 1, masks
	1107	IF ( time_domask(mid) >= dt_domask(mid) ) THEN
	1108	CALL data_output_mask( 0 )
	1109	time_domask(mid) = MOD( time_domask(mid), &
	1110	MAX( dt_domask(mid), dt_3d ) )
	1111	ENDIF
	1112	ENDDO
	1113
	1114	!
	1115	!-- Output of time-averaged 2d/3d/masked data
[1]	1116	IF ( time_do_av >= dt_data_output_av ) THEN
	1117	CALL average_3d_data
	1118	CALL data_output_2d( 'xy', 1 )
	1119	CALL data_output_2d( 'xz', 1 )
	1120	CALL data_output_2d( 'yz', 1 )
	1121	CALL data_output_3d( 1 )
[410]	1122	DO mid = 1, masks
	1123	CALL data_output_mask( 1 )
	1124	ENDDO
[1]	1125	time_do_av = MOD( time_do_av, MAX( dt_data_output_av, dt_3d ) )
	1126	ENDIF
	1127
	1128	!
	1129	!-- Output of particle time series
[253]	1130	IF ( particle_advection ) THEN
	1131	IF ( time_dopts >= dt_dopts .OR. &
	1132	( simulated_time >= particle_advection_start .AND. &
[849]	1133	first_call_lpm ) ) THEN
[253]	1134	CALL data_output_ptseries
	1135	time_dopts = MOD( time_dopts, MAX( dt_dopts, dt_3d ) )
	1136	ENDIF
[1]	1137	ENDIF
	1138
	1139	!
	1140	!-- Output of dvrp-graphics (isosurface, particles, slicer)
	1141	#if defined( __dvrp_graphics )
	1142	CALL DVRP_LOG_EVENT( -2, current_timestep_number-1 )
	1143	#endif
	1144	IF ( time_dvrp >= dt_dvrp ) THEN
	1145	CALL data_output_dvrp
	1146	time_dvrp = MOD( time_dvrp, MAX( dt_dvrp, dt_3d ) )
	1147	ENDIF
	1148	#if defined( __dvrp_graphics )
	1149	CALL DVRP_LOG_EVENT( 2, current_timestep_number )
	1150	#endif
	1151
	1152	!
	1153	!-- If required, set the heat flux for the next time step at a random value
	1154	IF ( constant_heatflux .AND. random_heatflux ) CALL disturb_heatflux
	1155
	1156	!
	1157	!-- Execute user-defined actions
	1158	CALL user_actions( 'after_timestep' )
	1159
[1402]	1160	!
[1918]	1161	!-- Determine size of next time step. Save timestep dt_3d because it is
	1162	!-- newly calculated in routine timestep, but required further below for
	1163	!-- steering the run control output interval
	1164	dt_3d_old = dt_3d
	1165	CALL timestep
	1166
	1167	!
[1925]	1168	!-- Synchronize the timestep in case of nested run.
	1169	IF ( nested_run ) THEN
	1170	!
	1171	!-- Synchronize by unifying the time step.
	1172	!-- Global minimum of all time-steps is used for all.
	1173	CALL pmci_synchronize
	1174	ENDIF
	1175
	1176	!
[1918]	1177	!-- Computation and output of run control parameters.
	1178	!-- This is also done whenever perturbations have been imposed
	1179	IF ( time_run_control >= dt_run_control .OR. &
	1180	timestep_scheme(1:5) /= 'runge' .OR. disturbance_created ) &
	1181	THEN
	1182	! IF ( current_timestep_number == 1 ) THEN
	1183	! IF ( nxl < 7 .AND. nxr > 7 .AND. nys < 7 .AND. nyn > 7 ) THEN
	1184	! u(10,7,7) = 0.55
	1185	! ENDIF
	1186	! PRINT*, 'calculating minmax'
	1187	! CALL global_min_max( nzb, nzt+1, nysg, nyng, nxlg, nxrg, u, &
	1188	! 'abs', 0.0_wp, u_max, u_max_ijk )
	1189	! CALL global_min_max( nzb, nzt+1, nysg, nyng, nxlg, nxrg, v, &
	1190	! 'abs', 0.0_wp, v_max, v_max_ijk )
	1191	! CALL global_min_max( nzb, nzt+1, nysg, nyng, nxlg, nxrg, w, &
	1192	! 'abs', 0.0_wp, w_max, w_max_ijk )
	1193	! PRINT*, 'calculated u_max = ', u_max, ' myid = ', myid
	1194	! ENDIF
	1195	CALL run_control
	1196	IF ( time_run_control >= dt_run_control ) THEN
	1197	time_run_control = MOD( time_run_control, &
	1198	MAX( dt_run_control, dt_3d_old ) )
	1199	ENDIF
	1200	ENDIF
	1201
	1202	!
[1402]	1203	!-- Output elapsed simulated time in form of a progress bar on stdout
	1204	IF ( myid == 0 ) CALL output_progress_bar
	1205
[1]	1206	CALL cpu_log( log_point_s(10), 'timesteps', 'stop' )
	1207
[667]	1208
[1]	1209	ENDDO ! time loop
	1210
[1402]	1211	IF ( myid == 0 ) CALL finish_progress_bar
	1212
[1]	1213	#if defined( __dvrp_graphics )
	1214	CALL DVRP_LOG_EVENT( -2, current_timestep_number )
	1215	#endif
	1216
[1402]	1217	CALL location_message( 'finished time-stepping', .TRUE. )
[1384]	1218
[1]	1219	END SUBROUTINE time_integration

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