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source: palm/trunk/SOURCE/time_integration.f90 @ 2053

Last change on this file since 2053 was 2051, checked in by gronemeier, 8 years ago
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[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	! ------------------
[1928]	22	!
[2051]	23	!
[1366]	24	! Former revisions:
	25	! -----------------
	26	! $Id: time_integration.f90 2051 2016-11-08 15:08:37Z gronemeier $
	27	!
[2051]	28	! 2050 2016-11-08 15:00:55Z gronemeier
	29	! Implement turbulent outflow condition
	30	!
[2032]	31	! 2031 2016-10-21 15:11:58Z knoop
	32	! renamed variable rho to rho_ocean
	33	!
[2012]	34	! 2011 2016-09-19 17:29:57Z kanani
	35	! Flag urban_surface is now defined in module control_parameters,
	36	! removed commented CALLs of global_min_max.
	37	!
[2008]	38	! 2007 2016-08-24 15:47:17Z kanani
	39	! Added CALLs for new urban surface model
	40	!
[2001]	41	! 2000 2016-08-20 18:09:15Z knoop
	42	! Forced header and separation lines into 80 columns
	43	!
[1977]	44	! 1976 2016-07-27 13:28:04Z maronga
	45	! Simplified calls to radiation model
	46	!
[1961]	47	! 1960 2016-07-12 16:34:24Z suehring
	48	! Separate humidity and passive scalar
	49	!
[1958]	50	! 1957 2016-07-07 10:43:48Z suehring
	51	! flight module added
	52	!
[1933]	53	! 1919 2016-05-27 14:51:23Z raasch
	54	! Initial version of purely vertical nesting introduced.
[1928]	55	!
[1919]	56	! 1918 2016-05-27 14:35:57Z raasch
	57	! determination of time step moved to the end of the time step loop,
	58	! the first time step is now always calculated before the time step loop (i.e.
	59	! also in case of restart runs)
	60	!
[1917]	61	! 1914 2016-05-26 14:44:07Z witha
	62	! Added call for wind turbine model
	63	!
[1879]	64	! 1878 2016-04-19 12:30:36Z hellstea
	65	! Synchronization for nested runs rewritten
	66	!
[1854]	67	! 1853 2016-04-11 09:00:35Z maronga
	68	! Adjusted for use with radiation_scheme = constant
	69	!
[1851]	70	! 1849 2016-04-08 11:33:18Z hoffmann
	71	! Adapted for modularization of microphysics
	72	!
[1834]	73	! 1833 2016-04-07 14:23:03Z raasch
	74	! spectrum renamed spectra_mod, spectra related variables moved to spectra_mod
	75	!
[1832]	76	! 1831 2016-04-07 13:15:51Z hoffmann
	77	! turbulence renamed collision_turbulence
	78	!
[1823]	79	! 1822 2016-04-07 07:49:42Z hoffmann
	80	! icloud_scheme replaced by microphysics_*
	81	!
[1809]	82	! 1808 2016-04-05 19:44:00Z raasch
	83	! output message in case unscheduled radiation calls removed
	84	!
[1798]	85	! 1797 2016-03-21 16:50:28Z raasch
	86	! introduction of different datatransfer modes
	87	!
[1792]	88	! 1791 2016-03-11 10:41:25Z raasch
	89	! call of pmci_update_new removed
	90	!
[1787]	91	! 1786 2016-03-08 05:49:27Z raasch
	92	! +module spectrum
	93	!
[1784]	94	! 1783 2016-03-06 18:36:17Z raasch
	95	! switch back of netcdf data format for mask output moved to the mask output
	96	! routine
	97	!
[1782]	98	! 1781 2016-03-03 15:12:23Z raasch
	99	! some pmc calls removed at the beginning (before timeloop),
	100	! pmc initialization moved to the main program
	101	!
[1765]	102	! 1764 2016-02-28 12:45:19Z raasch
	103	! PMC_ACTIVE flags removed,
	104	! bugfix: nest synchronization after first call of timestep
	105	!
[1763]	106	! 1762 2016-02-25 12:31:13Z hellstea
	107	! Introduction of nested domain feature
	108	!
[1737]	109	! 1736 2015-12-04 08:56:33Z raasch
	110	! no perturbations added to total domain if energy limit has been set zero
	111	!
[1692]	112	! 1691 2015-10-26 16:17:44Z maronga
	113	! Added option for spin-ups without land surface and radiation models. Moved calls
	114	! for radiation and lan surface schemes.
	115	!
[1683]	116	! 1682 2015-10-07 23:56:08Z knoop
	117	! Code annotations made doxygen readable
	118	!
[1672]	119	! 1671 2015-09-25 03:29:37Z raasch
	120	! bugfix: ghostpoint exchange for array diss in case that sgs velocities are used
	121	! for particles
	122	!
[1586]	123	! 1585 2015-04-30 07:05:52Z maronga
	124	! Moved call of radiation scheme. Added support for RRTM
	125	!
[1552]	126	! 1551 2015-03-03 14:18:16Z maronga
	127	! Added interface for different radiation schemes.
	128	!
[1497]	129	! 1496 2014-12-02 17:25:50Z maronga
	130	! Added calls for the land surface model and radiation scheme
	131	!
[1403]	132	! 1402 2014-05-09 14:25:13Z raasch
	133	! location messages modified
	134	!
[1385]	135	! 1384 2014-05-02 14:31:06Z raasch
	136	! location messages added
	137	!
[1381]	138	! 1380 2014-04-28 12:40:45Z heinze
	139	! CALL of nudge_ref added
	140	! bc_pt_t_val and bc_q_t_val are updated in case nudging is used
	141	!
[1366]	142	! 1365 2014-04-22 15:03:56Z boeske
[1365]	143	! Reset sums_ls_l to zero at each timestep
	144	! +sums_ls_l
	145	! Calculation of reference state (previously in subroutine calc_mean_profile)
	146
[1343]	147	! 1342 2014-03-26 17:04:47Z kanani
	148	! REAL constants defined as wp-kind
	149	!
[1321]	150	! 1320 2014-03-20 08:40:49Z raasch
[1320]	151	! ONLY-attribute added to USE-statements,
	152	! kind-parameters added to all INTEGER and REAL declaration statements,
	153	! kinds are defined in new module kinds,
	154	! old module precision_kind is removed,
	155	! revision history before 2012 removed,
	156	! comment fields (!:) to be used for variable explanations added to
	157	! all variable declaration statements
[1319]	158	! 1318 2014-03-17 13:35:16Z raasch
	159	! module interfaces removed
	160	!
[1309]	161	! 1308 2014-03-13 14:58:42Z fricke
	162	! +netcdf_data_format_save
	163	! For masked data, parallel netcdf output is not tested so far, hence
	164	! netcdf_data_format is switched back to non-paralell output.
	165	!
[1277]	166	! 1276 2014-01-15 13:40:41Z heinze
	167	! Use LSF_DATA also in case of Dirichlet bottom boundary condition for scalars
	168	!
[1258]	169	! 1257 2013-11-08 15:18:40Z raasch
	170	! acc-update-host directive for timestep removed
	171	!
[1242]	172	! 1241 2013-10-30 11:36:58Z heinze
	173	! Generalize calc_mean_profile for wider use
	174	! Determine shf and qsws in dependence on data from LSF_DATA
	175	! Determine ug and vg in dependence on data from LSF_DATA
[1222]	176	! 1221 2013-09-10 08:59:13Z raasch
	177	! host update of arrays before timestep is called
	178	!
[1182]	179	! 1179 2013-06-14 05:57:58Z raasch
	180	! mean profiles for reference state are only calculated if required,
	181	! small bugfix for background communication
	182	!
[1172]	183	! 1171 2013-05-30 11:27:45Z raasch
	184	! split of prognostic_equations deactivated (comment lines), for the time being
	185	!
[1132]	186	! 1128 2013-04-12 06:19:32Z raasch
[1128]	187	! asynchronous transfer of ghost point data realized for acc-optimized version:
	188	! prognostic_equations are first called two times for those points required for
	189	! the left-right and north-south exchange, respectively, and then for the
	190	! remaining points,
	191	! those parts requiring global communication moved from prognostic_equations to
	192	! here
[392]	193	!
[1116]	194	! 1115 2013-03-26 18:16:16Z hoffmann
	195	! calculation of qr and nr is restricted to precipitation
	196	!
[1114]	197	! 1113 2013-03-10 02:48:14Z raasch
	198	! GPU-porting of boundary conditions,
	199	! openACC directives updated
	200	! formal parameter removed from routine boundary_conds
	201	!
[1112]	202	! 1111 2013-03-08 23:54:10Z raasch
	203	! +internal timestep counter for cpu statistics added,
	204	! openACC directives updated
	205	!
[1093]	206	! 1092 2013-02-02 11:24:22Z raasch
	207	! unused variables removed
	208	!
[1066]	209	! 1065 2012-11-22 17:42:36Z hoffmann
	210	! exchange of diss (dissipation rate) in case of turbulence = .TRUE. added
	211	!
[1054]	212	! 1053 2012-11-13 17:11:03Z hoffmann
	213	! exchange of ghost points for nr, qr added
	214	!
[1037]	215	! 1036 2012-10-22 13:43:42Z raasch
	216	! code put under GPL (PALM 3.9)
	217	!
[1020]	218	! 1019 2012-09-28 06:46:45Z raasch
	219	! non-optimized version of prognostic_equations removed
	220	!
[1017]	221	! 1015 2012-09-27 09:23:24Z raasch
	222	! +call of prognostic_equations_acc
	223	!
[1002]	224	! 1001 2012-09-13 14:08:46Z raasch
	225	! all actions concerning leapfrog- and upstream-spline-scheme removed
	226	!
[850]	227	! 849 2012-03-15 10:35:09Z raasch
	228	! advec_particles renamed lpm, first_call_advec_particles renamed first_call_lpm
	229	!
[826]	230	! 825 2012-02-19 03:03:44Z raasch
	231	! wang_collision_kernel renamed wang_kernel
	232	!
[1]	233	! Revision 1.1 1997/08/11 06:19:04 raasch
	234	! Initial revision
	235	!
	236	!
	237	! Description:
	238	! ------------
[1682]	239	!> Integration in time of the model equations, statistical analysis and graphic
	240	!> output
[1]	241	!------------------------------------------------------------------------------!
[1682]	242	SUBROUTINE time_integration
	243
[1]	244
[1320]	245	USE advec_ws, &
	246	ONLY: ws_statistics
	247
	248	USE arrays_3d, &
[1762]	249	ONLY: diss, dzu, e, e_p, nr_p, prho, pt, pt_p, pt_init, q_init, q, &
[2031]	250	ql, ql_c, ql_v, ql_vp, qr_p, q_p, ref_state, rho_ocean, s, s_p, sa_p, &
[1960]	251	tend, u, u_p, v, vpt, v_p, w, w_p
[1320]	252
[1365]	253	USE calc_mean_profile_mod, &
[1320]	254	ONLY: calc_mean_profile
	255
	256	USE control_parameters, &
	257	ONLY: advected_distance_x, advected_distance_y, average_count_3d, &
[1833]	258	averaging_interval, averaging_interval_pr, &
	259	bc_lr_cyc, bc_ns_cyc, bc_pt_t_val, &
[1380]	260	bc_q_t_val, call_psolver_at_all_substeps, cloud_droplets, &
[1691]	261	cloud_physics, constant_flux_layer, constant_heatflux, &
	262	create_disturbances, dopr_n, constant_diffusion, coupling_mode, &
	263	coupling_start_time, current_timestep_number, &
	264	disturbance_created, disturbance_energy_limit, dist_range, &
	265	do_sum, dt_3d, dt_averaging_input, dt_averaging_input_pr, &
	266	dt_coupling, dt_data_output_av, dt_disturb, dt_do2d_xy, &
	267	dt_do2d_xz, dt_do2d_yz, dt_do3d, dt_domask,dt_dopts, dt_dopr, &
[1833]	268	dt_dopr_listing, dt_dots, dt_dvrp, dt_run_control, &
[1320]	269	end_time, first_call_lpm, galilei_transformation, humidity, &
[1822]	270	intermediate_timestep_count, &
[1320]	271	intermediate_timestep_count_max, large_scale_forcing, &
[1822]	272	loop_optimization, lsf_surf, lsf_vert, masks, &
	273	microphysics_seifert, mid, nest_domain, &
[1783]	274	neutral, nr_timesteps_this_run, nudging, &
[1822]	275	ocean, on_device, passive_scalar, &
[1320]	276	prho_reference, pt_reference, pt_slope_offset, random_heatflux, &
	277	run_coupled, simulated_time, simulated_time_chr, &
	278	skip_time_do2d_xy, skip_time_do2d_xz, skip_time_do2d_yz, &
	279	skip_time_do3d, skip_time_domask, skip_time_dopr, &
[1833]	280	skip_time_data_output_av, sloping_surface, &
[1320]	281	stop_dt, terminate_coupled, terminate_run, timestep_scheme, &
	282	time_coupling, time_do2d_xy, time_do2d_xz, time_do2d_yz, &
	283	time_do3d, time_domask, time_dopr, time_dopr_av, &
	284	time_dopr_listing, time_dopts, time_dosp, time_dosp_av, &
	285	time_dots, time_do_av, time_do_sla, time_disturb, time_dvrp, &
[1496]	286	time_run_control, time_since_reference_point, &
[2050]	287	turbulent_inflow, turbulent_outflow, urban_surface, &
[2011]	288	use_initial_profile_as_reference, &
[1957]	289	use_single_reference_value, u_gtrans, v_gtrans, virtual_flight, &
	290	ws_scheme_mom, ws_scheme_sca
[1320]	291
	292	USE cpulog, &
	293	ONLY: cpu_log, log_point, log_point_s
	294
[1957]	295	USE flight_mod, &
	296	ONLY: flight_measurement
	297
	298
[1320]	299	USE indices, &
	300	ONLY: i_left, i_right, j_north, j_south, nbgp, nx, nxl, nxlg, nxr, &
[1918]	301	nxrg, nyn, nyng, nys, nysg, nzb, nzt, nzb_u_inner, nzb_v_inner
[1320]	302
	303	USE interaction_droplets_ptq_mod, &
	304	ONLY: interaction_droplets_ptq
	305
[1918]	306	USE interfaces
	307
[1320]	308	USE kinds
	309
[1496]	310	USE land_surface_model_mod, &
[1691]	311	ONLY: land_surface, lsm_energy_balance, lsm_soil_model, &
	312	skip_time_do_lsm
[1496]	313
[1320]	314	USE ls_forcing_mod, &
	315	ONLY: ls_forcing_surf, ls_forcing_vert
	316
[1849]	317	USE microphysics_mod, &
	318	ONLY: collision_turbulence
	319
[1365]	320	USE nudge_mod, &
[1380]	321	ONLY: calc_tnudge, nudge_ref
[1365]	322
[1320]	323	USE particle_attributes, &
[1671]	324	ONLY: particle_advection, particle_advection_start, &
	325	use_sgs_for_particles, wang_kernel
[1320]	326
[1]	327	USE pegrid
	328
[1762]	329	USE pmc_interface, &
[1933]	330	ONLY: nested_run, nesting_mode, pmci_datatrans, &
	331	pmci_ensure_nest_mass_conservation, pmci_synchronize
[1762]	332
[1320]	333	USE production_e_mod, &
	334	ONLY: production_e_init
	335
[1402]	336	USE progress_bar, &
	337	ONLY: finish_progress_bar, output_progress_bar
	338
[1320]	339	USE prognostic_equations_mod, &
	340	ONLY: prognostic_equations_acc, prognostic_equations_cache, &
	341	prognostic_equations_vector
	342
[1496]	343	USE radiation_model_mod, &
[1976]	344	ONLY: dt_radiation, force_radiation_call, radiation, radiation_control,&
	345	skip_time_do_radiation, time_radiation
[1496]	346
[1833]	347	USE spectra_mod, &
	348	ONLY: average_count_sp, averaging_interval_sp, calc_spectra, dt_dosp, &
	349	skip_time_dosp
[1786]	350
[1320]	351	USE statistics, &
[1918]	352	ONLY: flow_statistics_called, hom, pr_palm, sums_ls_l, u_max, &
	353	u_max_ijk, v_max, v_max_ijk, w_max, w_max_ijk
[1320]	354
[1691]	355	USE surface_layer_fluxes_mod, &
	356	ONLY: surface_layer_fluxes
	357
[2007]	358	USE urban_surface_mod, &
[2011]	359	ONLY: usm_material_heat_model, usm_material_model, &
[2007]	360	usm_radiation, usm_surface_energy_balance
	361
[1320]	362	USE user_actions_mod, &
	363	ONLY: user_actions
	364
[1914]	365	USE wind_turbine_model_mod, &
	366	ONLY: wind_turbine, wtm_forces
	367
[1]	368	IMPLICIT NONE
	369
[1682]	370	CHARACTER (LEN=9) :: time_to_string !<
[1]	371
[1918]	372	REAL(wp) :: dt_3d_old !< temporary storage of timestep to be used for
	373	!< steering of run control output interval
	374
[1]	375	!
[1918]	376	!-- At beginning determine the first time step
	377	CALL timestep
[667]	378
[1764]	379	!
	380	!-- Synchronize the timestep in case of nested run.
	381	IF ( nested_run ) THEN
[1878]	382	!
	383	!-- Synchronization by unifying the time step.
	384	!-- Global minimum of all time-steps is used for all.
	385	CALL pmci_synchronize
[1764]	386	ENDIF
	387
[1918]	388	!
	389	!-- Determine and print out the run control quantities before the first time
	390	!-- step of this run. For the initial run, some statistics (e.g. divergence)
	391	!-- need to be determined first.
	392	IF ( simulated_time == 0.0_wp ) CALL flow_statistics
[1]	393	CALL run_control
	394
[108]	395	!
	396	!-- Data exchange between coupled models in case that a call has been omitted
	397	!-- at the end of the previous run of a job chain.
[291]	398	IF ( coupling_mode /= 'uncoupled' .AND. run_coupled ) THEN
[108]	399	!
	400	!-- In case of model termination initiated by the local model the coupler
	401	!-- must not be called because this would again cause an MPI hang.
[1918]	402	DO WHILE ( time_coupling >= dt_coupling .AND. terminate_coupled == 0 )
[108]	403	CALL surface_coupler
	404	time_coupling = time_coupling - dt_coupling
	405	ENDDO
[1918]	406	IF (time_coupling == 0.0_wp .AND. &
	407	time_since_reference_point < dt_coupling ) &
[348]	408	THEN
	409	time_coupling = time_since_reference_point
	410	ENDIF
[108]	411	ENDIF
	412
[1]	413	#if defined( __dvrp_graphics )
	414	!
	415	!-- Time measurement with dvrp software
	416	CALL DVRP_LOG_EVENT( 2, current_timestep_number )
	417	#endif
	418
[1402]	419	CALL location_message( 'start with time-stepping', .TRUE. )
[1]	420	!
	421	!-- Start of the time loop
	422	DO WHILE ( simulated_time < end_time .AND. .NOT. stop_dt .AND. &
	423	.NOT. terminate_run )
	424
	425	CALL cpu_log( log_point_s(10), 'timesteps', 'start' )
[1221]	426
[1]	427	!
[1241]	428	!-- Determine ug, vg and w_subs in dependence on data from external file
	429	!-- LSF_DATA
[1365]	430	IF ( large_scale_forcing .AND. lsf_vert ) THEN
[1241]	431	CALL ls_forcing_vert ( simulated_time )
[1365]	432	sums_ls_l = 0.0_wp
[1241]	433	ENDIF
	434
	435	!
[1380]	436	!-- Set pt_init and q_init to the current profiles taken from
	437	!-- NUDGING_DATA
	438	IF ( nudging ) THEN
	439	CALL nudge_ref ( simulated_time )
	440	!
	441	!-- Store temperature gradient at the top boundary for possible Neumann
	442	!-- boundary condition
	443	bc_pt_t_val = ( pt_init(nzt+1) - pt_init(nzt) ) / dzu(nzt+1)
	444	bc_q_t_val = ( q_init(nzt+1) - q_init(nzt) ) / dzu(nzt+1)
	445	ENDIF
	446
	447	!
[1]	448	!-- Execute the user-defined actions
	449	CALL user_actions( 'before_timestep' )
	450
	451	!
[1914]	452	!-- Calculate forces by wind turbines
	453	IF ( wind_turbine ) THEN
	454
	455	CALL cpu_log( log_point(55), 'wind_turbine', 'start' )
	456
	457	CALL wtm_forces
	458
	459	CALL cpu_log( log_point(55), 'wind_turbine', 'stop' )
	460
	461	ENDIF
	462
	463	!
[1]	464	!-- Start of intermediate step loop
	465	intermediate_timestep_count = 0
	466	DO WHILE ( intermediate_timestep_count < &
	467	intermediate_timestep_count_max )
	468
	469	intermediate_timestep_count = intermediate_timestep_count + 1
	470
	471	!
	472	!-- Set the steering factors for the prognostic equations which depend
	473	!-- on the timestep scheme
	474	CALL timestep_scheme_steering
	475
	476	!
[1128]	477	!-- Calculate those variables needed in the tendency terms which need
	478	!-- global communication
[1179]	479	IF ( .NOT. use_single_reference_value .AND. &
	480	.NOT. use_initial_profile_as_reference ) THEN
	481	!
	482	!-- Horizontally averaged profiles to be used as reference state in
	483	!-- buoyancy terms (WARNING: only the respective last call of
	484	!-- calc_mean_profile defines the reference state!)
[1365]	485	IF ( .NOT. neutral ) THEN
	486	CALL calc_mean_profile( pt, 4 )
	487	ref_state(:) = hom(:,1,4,0) ! this is used in the buoyancy term
	488	ENDIF
	489	IF ( ocean ) THEN
[2031]	490	CALL calc_mean_profile( rho_ocean, 64 )
[1365]	491	ref_state(:) = hom(:,1,64,0)
	492	ENDIF
	493	IF ( humidity ) THEN
	494	CALL calc_mean_profile( vpt, 44 )
	495	ref_state(:) = hom(:,1,44,0)
	496	ENDIF
	497
[1179]	498	ENDIF
	499
[1128]	500	IF ( .NOT. constant_diffusion ) CALL production_e_init
	501	IF ( ( ws_scheme_mom .OR. ws_scheme_sca ) .AND. &
	502	intermediate_timestep_count == 1 ) CALL ws_statistics
[1365]	503	!
	504	!-- In case of nudging calculate current nudging time scale and horizontal
[1380]	505	!-- means of u, v, pt and q
[1365]	506	IF ( nudging ) THEN
	507	CALL calc_tnudge( simulated_time )
	508	CALL calc_mean_profile( u, 1 )
	509	CALL calc_mean_profile( v, 2 )
	510	CALL calc_mean_profile( pt, 4 )
	511	CALL calc_mean_profile( q, 41 )
	512	ENDIF
[1128]	513
	514	!
[1]	515	!-- Solve the prognostic equations. A fast cache optimized version with
	516	!-- only one single loop is used in case of Piascek-Williams advection
	517	!-- scheme. NEC vector machines use a different version, because
	518	!-- in the other versions a good vectorization is prohibited due to
	519	!-- inlining problems.
[1019]	520	IF ( loop_optimization == 'cache' ) THEN
	521	CALL prognostic_equations_cache
	522	ELSEIF ( loop_optimization == 'vector' ) THEN
[63]	523	CALL prognostic_equations_vector
[1015]	524	ELSEIF ( loop_optimization == 'acc' ) THEN
[1171]	525	i_left = nxl; i_right = nxr
	526	j_south = nys; j_north = nyn
	527	CALL prognostic_equations_acc
	528
	529	! i_left = nxl; i_right = nxl+nbgp-1
[1128]	530	! j_south = nys; j_north = nyn
	531	! CALL prognostic_equations_acc
[1171]	532	! i_left = nxr-nbgp+1; i_right = nxr
	533	! j_south = nys; j_north = nyn
	534	! CALL prognostic_equations_acc
[1128]	535
	536	!
	537	!-- Exchange of ghost points (lateral boundary conditions)
	538	IF ( background_communication ) THEN
	539
	540	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'start' )
	541
	542	send_receive = 'lr'
	543	sendrecv_in_background = .TRUE.
	544	req = 0
	545	req_count = 0
	546
	547	IF ( numprocs == 1 ) THEN ! workaround for single-core GPU runs
	548	on_device = .TRUE. ! to be removed after complete porting
	549	ELSE ! of ghost point exchange
	550	!$acc update host( e_p, pt_p, u_p, v_p, w_p )
	551	ENDIF
	552
	553	CALL exchange_horiz( u_p, nbgp )
	554	CALL exchange_horiz( v_p, nbgp )
	555	CALL exchange_horiz( w_p, nbgp )
	556	CALL exchange_horiz( pt_p, nbgp )
	557	IF ( .NOT. constant_diffusion ) CALL exchange_horiz( e_p, nbgp )
	558	IF ( ocean ) THEN
	559	CALL exchange_horiz( sa_p, nbgp )
[2031]	560	CALL exchange_horiz( rho_ocean, nbgp )
[1960]	561	CALL exchange_horiz( prho, nbgp )
[1128]	562	ENDIF
[1960]	563	IF ( humidity ) THEN
[1128]	564	CALL exchange_horiz( q_p, nbgp )
[1822]	565	IF ( cloud_physics .AND. microphysics_seifert ) THEN
[1128]	566	CALL exchange_horiz( qr_p, nbgp )
	567	CALL exchange_horiz( nr_p, nbgp )
	568	ENDIF
	569	ENDIF
	570	IF ( cloud_droplets ) THEN
	571	CALL exchange_horiz( ql, nbgp )
	572	CALL exchange_horiz( ql_c, nbgp )
	573	CALL exchange_horiz( ql_v, nbgp )
	574	CALL exchange_horiz( ql_vp, nbgp )
	575	ENDIF
[1831]	576	IF ( wang_kernel .OR. collision_turbulence .OR. &
	577	use_sgs_for_particles ) THEN
[1671]	578	CALL exchange_horiz( diss, nbgp )
	579	ENDIF
[1960]	580	IF ( passive_scalar ) CALL exchange_horiz( s_p, nbgp )
[1128]	581
	582	IF ( numprocs == 1 ) THEN ! workaround for single-core GPU runs
	583	on_device = .FALSE. ! to be removed after complete porting
	584	ELSE ! of ghost point exchange
	585	!$acc update device( e_p, pt_p, u_p, v_p, w_p )
	586	ENDIF
	587
	588	sendrecv_in_background = .FALSE.
	589
	590	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'pause' )
	591
	592	ENDIF
	593
[1171]	594	! i_left = nxl+nbgp; i_right = nxr-nbgp
	595	! j_south = nys; j_north = nys+nbgp-1
	596	! CALL prognostic_equations_acc
	597	! i_left = nxl+nbgp; i_right = nxr-nbgp
	598	! j_south = nyn-nbgp+1; j_north = nyn
	599	! CALL prognostic_equations_acc
[1128]	600
	601	IF ( background_communication ) THEN
	602	CALL cpu_log( log_point(41), 'exchange-horiz-wait', 'start' )
	603	#if defined( __parallel )
	604	CALL MPI_WAITALL( req_count, req, wait_stat, ierr )
	605	#endif
	606	CALL cpu_log( log_point(41), 'exchange-horiz-wait', 'pause' )
	607
	608	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'continue' )
	609
	610	send_receive = 'ns'
	611	sendrecv_in_background = .TRUE.
	612	req = 0
	613	req_count = 0
	614
	615	IF ( numprocs == 1 ) THEN ! workaround for single-core GPU runs
	616	on_device = .TRUE. ! to be removed after complete porting
	617	ELSE ! of ghost point exchange
	618	!$acc update host( e_p, pt_p, u_p, v_p, w_p )
	619	ENDIF
	620
	621	CALL exchange_horiz( u_p, nbgp )
	622	CALL exchange_horiz( v_p, nbgp )
	623	CALL exchange_horiz( w_p, nbgp )
	624	CALL exchange_horiz( pt_p, nbgp )
	625	IF ( .NOT. constant_diffusion ) CALL exchange_horiz( e_p, nbgp )
	626	IF ( ocean ) THEN
	627	CALL exchange_horiz( sa_p, nbgp )
[2031]	628	CALL exchange_horiz( rho_ocean, nbgp )
[1128]	629	CALL exchange_horiz( prho, nbgp )
	630	ENDIF
[1960]	631	IF ( humidity ) THEN
[1128]	632	CALL exchange_horiz( q_p, nbgp )
[1822]	633	IF ( cloud_physics .AND. microphysics_seifert ) THEN
[1128]	634	CALL exchange_horiz( qr_p, nbgp )
	635	CALL exchange_horiz( nr_p, nbgp )
	636	ENDIF
	637	ENDIF
	638	IF ( cloud_droplets ) THEN
	639	CALL exchange_horiz( ql, nbgp )
	640	CALL exchange_horiz( ql_c, nbgp )
	641	CALL exchange_horiz( ql_v, nbgp )
	642	CALL exchange_horiz( ql_vp, nbgp )
	643	ENDIF
[1831]	644	IF ( wang_kernel .OR. collision_turbulence .OR. &
	645	use_sgs_for_particles ) THEN
[1671]	646	CALL exchange_horiz( diss, nbgp )
	647	ENDIF
[1960]	648	IF ( passive_scalar ) CALL exchange_horiz( s_p, nbgp )
[1128]	649
	650	IF ( numprocs == 1 ) THEN ! workaround for single-core GPU runs
	651	on_device = .FALSE. ! to be removed after complete porting
	652	ELSE ! of ghost point exchange
	653	!$acc update device( e_p, pt_p, u_p, v_p, w_p )
	654	ENDIF
	655
	656	sendrecv_in_background = .FALSE.
	657
	658	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'stop' )
	659
	660	ENDIF
	661
[1171]	662	! i_left = nxl+nbgp; i_right = nxr-nbgp
	663	! j_south = nys+nbgp; j_north = nyn-nbgp
	664	! CALL prognostic_equations_acc
[1128]	665
	666	IF ( background_communication ) THEN
	667	CALL cpu_log( log_point(41), 'exchange-horiz-wait', 'continue' )
	668	#if defined( __parallel )
	669	CALL MPI_WAITALL( req_count, req, wait_stat, ierr )
	670	#endif
	671	send_receive = 'al'
	672	CALL cpu_log( log_point(41), 'exchange-horiz-wait', 'stop' )
	673	ENDIF
	674
[1]	675	ENDIF
	676
	677	!
[849]	678	!-- Particle transport/physics with the Lagrangian particle model
	679	!-- (only once during intermediate steps, because it uses an Euler-step)
[1128]	680	!-- ### particle model should be moved before prognostic_equations, in order
	681	!-- to regard droplet interactions directly
[63]	682	IF ( particle_advection .AND. &
	683	simulated_time >= particle_advection_start .AND. &
[1]	684	intermediate_timestep_count == 1 ) THEN
[849]	685	CALL lpm
	686	first_call_lpm = .FALSE.
[1]	687	ENDIF
	688
	689	!
	690	!-- Interaction of droplets with temperature and specific humidity.
	691	!-- Droplet condensation and evaporation is calculated within
	692	!-- advec_particles.
	693	IF ( cloud_droplets .AND. &
	694	intermediate_timestep_count == intermediate_timestep_count_max )&
	695	THEN
	696	CALL interaction_droplets_ptq
	697	ENDIF
	698
	699	!
	700	!-- Exchange of ghost points (lateral boundary conditions)
[1128]	701	IF ( .NOT. background_communication ) THEN
[1113]	702
[1128]	703	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'start' )
[1113]	704
[1128]	705	IF ( numprocs == 1 ) THEN ! workaround for single-core GPU runs
	706	on_device = .TRUE. ! to be removed after complete porting
	707	ELSE ! of ghost point exchange
	708	!$acc update host( e_p, pt_p, u_p, v_p, w_p )
[1053]	709	ENDIF
[1]	710
[1128]	711	CALL exchange_horiz( u_p, nbgp )
	712	CALL exchange_horiz( v_p, nbgp )
	713	CALL exchange_horiz( w_p, nbgp )
	714	CALL exchange_horiz( pt_p, nbgp )
	715	IF ( .NOT. constant_diffusion ) CALL exchange_horiz( e_p, nbgp )
	716	IF ( ocean ) THEN
	717	CALL exchange_horiz( sa_p, nbgp )
[2031]	718	CALL exchange_horiz( rho_ocean, nbgp )
[1128]	719	CALL exchange_horiz( prho, nbgp )
	720	ENDIF
[1960]	721	IF ( humidity ) THEN
[1128]	722	CALL exchange_horiz( q_p, nbgp )
[1822]	723	IF ( cloud_physics .AND. microphysics_seifert ) THEN
[1128]	724	CALL exchange_horiz( qr_p, nbgp )
	725	CALL exchange_horiz( nr_p, nbgp )
	726	ENDIF
	727	ENDIF
	728	IF ( cloud_droplets ) THEN
	729	CALL exchange_horiz( ql, nbgp )
	730	CALL exchange_horiz( ql_c, nbgp )
	731	CALL exchange_horiz( ql_v, nbgp )
	732	CALL exchange_horiz( ql_vp, nbgp )
	733	ENDIF
[1831]	734	IF ( wang_kernel .OR. collision_turbulence .OR. &
	735	use_sgs_for_particles ) THEN
[1671]	736	CALL exchange_horiz( diss, nbgp )
	737	ENDIF
[1960]	738	IF ( passive_scalar ) CALL exchange_horiz( s_p, nbgp )
[1128]	739
	740	IF ( numprocs == 1 ) THEN ! workaround for single-core GPU runs
	741	on_device = .FALSE. ! to be removed after complete porting
	742	ELSE ! of ghost point exchange
	743	!$acc update device( e_p, pt_p, u_p, v_p, w_p )
	744	ENDIF
	745
	746	CALL cpu_log( log_point(26), 'exchange-horiz-progn', 'stop' )
	747
[1113]	748	ENDIF
	749
[1]	750	!
	751	!-- Boundary conditions for the prognostic quantities (except of the
	752	!-- velocities at the outflow in case of a non-cyclic lateral wall)
[1113]	753	CALL boundary_conds
[1]	754
	755	!
[73]	756	!-- Swap the time levels in preparation for the next time step.
	757	CALL swap_timelevel
	758
[1764]	759	IF ( nested_run ) THEN
[1797]	760
[1764]	761	CALL cpu_log( log_point(60), 'nesting', 'start' )
[1762]	762	!
[1933]	763	!-- Domain nesting. The data transfer subroutines pmci_parent_datatrans
	764	!-- and pmci_child_datatrans are called inside the wrapper
[1797]	765	!-- subroutine pmci_datatrans according to the control parameters
	766	!-- nesting_mode and nesting_datatransfer_mode.
	767	!-- TO_DO: why is nesting_mode given as a parameter here?
	768	CALL pmci_datatrans( nesting_mode )
[1762]	769
[1933]	770	IF ( TRIM( nesting_mode ) == 'two-way' .OR. &
	771	nesting_mode == 'vertical' ) THEN
[1762]	772	!
[1933]	773	!-- Exchange_horiz is needed for all parent-domains after the
[1764]	774	!-- anterpolation
	775	CALL exchange_horiz( u, nbgp )
	776	CALL exchange_horiz( v, nbgp )
	777	CALL exchange_horiz( w, nbgp )
[1960]	778	IF ( .NOT. neutral ) CALL exchange_horiz( pt, nbgp )
	779	IF ( humidity ) CALL exchange_horiz( q, nbgp )
	780	IF ( passive_scalar ) CALL exchange_horiz( s, nbgp )
	781	IF ( .NOT. constant_diffusion ) CALL exchange_horiz( e, nbgp )
[1762]	782	ENDIF
	783	!
[1764]	784	!-- Correct the w top-BC in nest domains to ensure mass conservation.
[1933]	785	!-- This action must never be done for the root domain. Vertical
	786	!-- nesting implies mass conservation.
[1764]	787	IF ( nest_domain ) THEN
	788	CALL pmci_ensure_nest_mass_conservation
	789	ENDIF
	790
	791	CALL cpu_log( log_point(60), 'nesting', 'stop' )
	792
[1762]	793	ENDIF
	794
	795	!
[1]	796	!-- Temperature offset must be imposed at cyclic boundaries in x-direction
	797	!-- when a sloping surface is used
	798	IF ( sloping_surface ) THEN
[707]	799	IF ( nxl == 0 ) pt(:,:,nxlg:nxl-1) = pt(:,:,nxlg:nxl-1) - &
	800	pt_slope_offset
	801	IF ( nxr == nx ) pt(:,:,nxr+1:nxrg) = pt(:,:,nxr+1:nxrg) + &
	802	pt_slope_offset
[1]	803	ENDIF
	804
	805	!
[151]	806	!-- Impose a turbulent inflow using the recycling method
	807	IF ( turbulent_inflow ) CALL inflow_turbulence
	808
	809	!
[2050]	810	!-- Set values at outflow boundary using the special outflow condition
	811	IF ( turbulent_outflow ) CALL outflow_turbulence
	812
	813	!
[1]	814	!-- Impose a random perturbation on the horizontal velocity field
[106]	815	IF ( create_disturbances .AND. &
	816	( call_psolver_at_all_substeps .AND. &
[1]	817	intermediate_timestep_count == intermediate_timestep_count_max )&
[106]	818	.OR. ( .NOT. call_psolver_at_all_substeps .AND. &
	819	intermediate_timestep_count == 1 ) ) &
[1]	820	THEN
	821	time_disturb = time_disturb + dt_3d
	822	IF ( time_disturb >= dt_disturb ) THEN
[1111]	823	!$acc update host( u, v )
[1113]	824	IF ( numprocs == 1 ) on_device = .FALSE. ! workaround, remove later
[1736]	825	IF ( disturbance_energy_limit /= 0.0_wp .AND. &
	826	hom(nzb+5,1,pr_palm,0) < disturbance_energy_limit ) THEN
[75]	827	CALL disturb_field( nzb_u_inner, tend, u )
	828	CALL disturb_field( nzb_v_inner, tend, v )
[707]	829	ELSEIF ( .NOT. bc_lr_cyc .OR. .NOT. bc_ns_cyc ) THEN
[1]	830	!
	831	!-- Runs with a non-cyclic lateral wall need perturbations
	832	!-- near the inflow throughout the whole simulation
	833	dist_range = 1
[75]	834	CALL disturb_field( nzb_u_inner, tend, u )
	835	CALL disturb_field( nzb_v_inner, tend, v )
[1]	836	dist_range = 0
	837	ENDIF
[1113]	838	IF ( numprocs == 1 ) on_device = .TRUE. ! workaround, remove later
[1111]	839	!$acc update device( u, v )
[1]	840	time_disturb = time_disturb - dt_disturb
	841	ENDIF
	842	ENDIF
	843
	844	!
	845	!-- Reduce the velocity divergence via the equation for perturbation
	846	!-- pressure.
[106]	847	IF ( intermediate_timestep_count == 1 .OR. &
	848	call_psolver_at_all_substeps ) THEN
[1]	849	CALL pres
	850	ENDIF
	851
	852	!
	853	!-- If required, compute liquid water content
[1015]	854	IF ( cloud_physics ) THEN
	855	CALL calc_liquid_water_content
	856	!$acc update device( ql )
	857	ENDIF
[1115]	858	!
	859	!-- If required, compute virtual potential temperature
	860	IF ( humidity ) THEN
	861	CALL compute_vpt
	862	!$acc update device( vpt )
	863	ENDIF
[1585]	864
[1]	865	!
	866	!-- Compute the diffusion quantities
	867	IF ( .NOT. constant_diffusion ) THEN
	868
	869	!
[1276]	870	!-- Determine surface fluxes shf and qsws and surface values
	871	!-- pt_surface and q_surface in dependence on data from external
	872	!-- file LSF_DATA respectively
	873	IF ( ( large_scale_forcing .AND. lsf_surf ) .AND. &
	874	intermediate_timestep_count == intermediate_timestep_count_max )&
	875	THEN
	876	CALL ls_forcing_surf ( simulated_time )
	877	ENDIF
	878
	879	!
[1691]	880	!-- First the vertical fluxes in the surface (constant flux) layer are computed
	881	IF ( constant_flux_layer ) THEN
	882	CALL cpu_log( log_point(19), 'surface_layer_fluxes', 'start' )
	883	CALL surface_layer_fluxes
	884	CALL cpu_log( log_point(19), 'surface_layer_fluxes', 'stop' )
[1]	885	ENDIF
[1241]	886
[1]	887	!
[1691]	888	!-- If required, solve the energy balance for the surface and run soil
	889	!-- model
	890	IF ( land_surface .AND. simulated_time > skip_time_do_lsm) THEN
	891
	892	CALL cpu_log( log_point(54), 'land_surface', 'start' )
	893	CALL lsm_energy_balance
	894	CALL lsm_soil_model
	895	CALL cpu_log( log_point(54), 'land_surface', 'stop' )
	896	ENDIF
[2007]	897
[1691]	898	!
[2007]	899	!-- If required, solve the energy balance for urban surfaces and run
	900	!-- the material heat model
	901	IF (urban_surface) THEN
	902	CALL cpu_log( log_point(74), 'urban_surface', 'start' )
	903	CALL usm_surface_energy_balance
	904	IF ( usm_material_model ) THEN
	905	CALL usm_material_heat_model
	906	ENDIF
	907	CALL cpu_log( log_point(74), 'urban_surface', 'stop' )
	908	ENDIF
	909
	910	!
[1]	911	!-- Compute the diffusion coefficients
	912	CALL cpu_log( log_point(17), 'diffusivities', 'start' )
[75]	913	IF ( .NOT. humidity ) THEN
[97]	914	IF ( ocean ) THEN
[388]	915	CALL diffusivities( prho, prho_reference )
[97]	916	ELSE
	917	CALL diffusivities( pt, pt_reference )
	918	ENDIF
[1]	919	ELSE
[97]	920	CALL diffusivities( vpt, pt_reference )
[1]	921	ENDIF
	922	CALL cpu_log( log_point(17), 'diffusivities', 'stop' )
	923
	924	ENDIF
	925
[1691]	926	!
	927	!-- If required, calculate radiative fluxes and heating rates
	928	IF ( radiation .AND. intermediate_timestep_count &
	929	== intermediate_timestep_count_max .AND. simulated_time > &
	930	skip_time_do_radiation ) THEN
	931
	932	time_radiation = time_radiation + dt_3d
	933
	934	IF ( time_radiation >= dt_radiation .OR. force_radiation_call ) &
	935	THEN
	936
	937	CALL cpu_log( log_point(50), 'radiation', 'start' )
	938
	939	IF ( .NOT. force_radiation_call ) THEN
	940	time_radiation = time_radiation - dt_radiation
	941	ENDIF
	942
[1976]	943	CALL radiation_control
[1691]	944
	945	CALL cpu_log( log_point(50), 'radiation', 'stop' )
[2007]	946
	947	IF (urban_surface) THEN
	948	CALL cpu_log( log_point(75), 'usm_radiation', 'start' )
	949	CALL usm_radiation
	950	CALL cpu_log( log_point(75), 'usm_radiation', 'stop' )
	951	ENDIF
	952
[1691]	953	ENDIF
	954	ENDIF
	955
[1]	956	ENDDO ! Intermediate step loop
	957
	958	!
	959	!-- Increase simulation time and output times
[1111]	960	nr_timesteps_this_run = nr_timesteps_this_run + 1
[291]	961	current_timestep_number = current_timestep_number + 1
	962	simulated_time = simulated_time + dt_3d
	963	simulated_time_chr = time_to_string( simulated_time )
	964	time_since_reference_point = simulated_time - coupling_start_time
	965
[1957]	966
	967
[1]	968	IF ( simulated_time >= skip_time_data_output_av ) THEN
	969	time_do_av = time_do_av + dt_3d
	970	ENDIF
	971	IF ( simulated_time >= skip_time_do2d_xy ) THEN
	972	time_do2d_xy = time_do2d_xy + dt_3d
	973	ENDIF
	974	IF ( simulated_time >= skip_time_do2d_xz ) THEN
	975	time_do2d_xz = time_do2d_xz + dt_3d
	976	ENDIF
	977	IF ( simulated_time >= skip_time_do2d_yz ) THEN
	978	time_do2d_yz = time_do2d_yz + dt_3d
	979	ENDIF
	980	IF ( simulated_time >= skip_time_do3d ) THEN
	981	time_do3d = time_do3d + dt_3d
	982	ENDIF
[410]	983	DO mid = 1, masks
	984	IF ( simulated_time >= skip_time_domask(mid) ) THEN
	985	time_domask(mid)= time_domask(mid) + dt_3d
	986	ENDIF
	987	ENDDO
[1]	988	time_dvrp = time_dvrp + dt_3d
	989	IF ( simulated_time >= skip_time_dosp ) THEN
	990	time_dosp = time_dosp + dt_3d
	991	ENDIF
	992	time_dots = time_dots + dt_3d
[849]	993	IF ( .NOT. first_call_lpm ) THEN
[1]	994	time_dopts = time_dopts + dt_3d
	995	ENDIF
	996	IF ( simulated_time >= skip_time_dopr ) THEN
	997	time_dopr = time_dopr + dt_3d
	998	ENDIF
	999	time_dopr_listing = time_dopr_listing + dt_3d
	1000	time_run_control = time_run_control + dt_3d
	1001
	1002	!
[102]	1003	!-- Data exchange between coupled models
[291]	1004	IF ( coupling_mode /= 'uncoupled' .AND. run_coupled ) THEN
[102]	1005	time_coupling = time_coupling + dt_3d
[343]	1006
[108]	1007	!
	1008	!-- In case of model termination initiated by the local model
	1009	!-- (terminate_coupled > 0), the coupler must be skipped because it would
	1010	!-- cause an MPI intercomminucation hang.
	1011	!-- If necessary, the coupler will be called at the beginning of the
	1012	!-- next restart run.
	1013	DO WHILE ( time_coupling >= dt_coupling .AND. terminate_coupled == 0 )
[102]	1014	CALL surface_coupler
	1015	time_coupling = time_coupling - dt_coupling
	1016	ENDDO
	1017	ENDIF
	1018
	1019	!
[46]	1020	!-- Execute user-defined actions
	1021	CALL user_actions( 'after_integration' )
	1022
	1023	!
[1]	1024	!-- If Galilei transformation is used, determine the distance that the
	1025	!-- model has moved so far
	1026	IF ( galilei_transformation ) THEN
	1027	advected_distance_x = advected_distance_x + u_gtrans * dt_3d
	1028	advected_distance_y = advected_distance_y + v_gtrans * dt_3d
	1029	ENDIF
	1030
	1031	!
	1032	!-- Check, if restart is necessary (because cpu-time is expiring or
	1033	!-- because it is forced by user) and set stop flag
[108]	1034	!-- This call is skipped if the remote model has already initiated a restart.
	1035	IF ( .NOT. terminate_run ) CALL check_for_restart
[1]	1036
	1037	!
	1038	!-- Carry out statistical analysis and output at the requested output times.
	1039	!-- The MOD function is used for calculating the output time counters (like
	1040	!-- time_dopr) in order to regard a possible decrease of the output time
	1041	!-- interval in case of restart runs
	1042
	1043	!
	1044	!-- Set a flag indicating that so far no statistics have been created
	1045	!-- for this time step
	1046	flow_statistics_called = .FALSE.
	1047
	1048	!
	1049	!-- If required, call flow_statistics for averaging in time
[1342]	1050	IF ( averaging_interval_pr /= 0.0_wp .AND. &
[1]	1051	( dt_dopr - time_dopr ) <= averaging_interval_pr .AND. &
	1052	simulated_time >= skip_time_dopr ) THEN
	1053	time_dopr_av = time_dopr_av + dt_3d
	1054	IF ( time_dopr_av >= dt_averaging_input_pr ) THEN
	1055	do_sum = .TRUE.
	1056	time_dopr_av = MOD( time_dopr_av, &
	1057	MAX( dt_averaging_input_pr, dt_3d ) )
	1058	ENDIF
	1059	ENDIF
	1060	IF ( do_sum ) CALL flow_statistics
	1061
	1062	!
[410]	1063	!-- Sum-up 3d-arrays for later output of time-averaged 2d/3d/masked data
[1342]	1064	IF ( averaging_interval /= 0.0_wp .AND. &
[1]	1065	( dt_data_output_av - time_do_av ) <= averaging_interval .AND. &
	1066	simulated_time >= skip_time_data_output_av ) &
	1067	THEN
	1068	time_do_sla = time_do_sla + dt_3d
	1069	IF ( time_do_sla >= dt_averaging_input ) THEN
	1070	CALL sum_up_3d_data
	1071	average_count_3d = average_count_3d + 1
	1072	time_do_sla = MOD( time_do_sla, MAX( dt_averaging_input, dt_3d ) )
	1073	ENDIF
	1074	ENDIF
	1075
	1076	!
	1077	!-- Calculate spectra for time averaging
[1342]	1078	IF ( averaging_interval_sp /= 0.0_wp .AND. &
[1]	1079	( dt_dosp - time_dosp ) <= averaging_interval_sp .AND. &
	1080	simulated_time >= skip_time_dosp ) THEN
	1081	time_dosp_av = time_dosp_av + dt_3d
	1082	IF ( time_dosp_av >= dt_averaging_input_pr ) THEN
	1083	CALL calc_spectra
	1084	time_dosp_av = MOD( time_dosp_av, &
	1085	MAX( dt_averaging_input_pr, dt_3d ) )
	1086	ENDIF
	1087	ENDIF
	1088
	1089	!
[1957]	1090	!-- Call flight module and output data
	1091	IF ( virtual_flight ) THEN
	1092	CALL flight_measurement
	1093	CALL data_output_flight
	1094	ENDIF
	1095
	1096	!
[1]	1097	!-- Profile output (ASCII) on file
	1098	IF ( time_dopr_listing >= dt_dopr_listing ) THEN
	1099	CALL print_1d
	1100	time_dopr_listing = MOD( time_dopr_listing, MAX( dt_dopr_listing, &
	1101	dt_3d ) )
	1102	ENDIF
	1103
	1104	!
	1105	!-- Graphic output for PROFIL
	1106	IF ( time_dopr >= dt_dopr ) THEN
	1107	IF ( dopr_n /= 0 ) CALL data_output_profiles
	1108	time_dopr = MOD( time_dopr, MAX( dt_dopr, dt_3d ) )
[1342]	1109	time_dopr_av = 0.0_wp ! due to averaging (see above)
[1]	1110	ENDIF
	1111
	1112	!
	1113	!-- Graphic output for time series
	1114	IF ( time_dots >= dt_dots ) THEN
[48]	1115	CALL data_output_tseries
[1]	1116	time_dots = MOD( time_dots, MAX( dt_dots, dt_3d ) )
	1117	ENDIF
	1118
	1119	!
	1120	!-- Output of spectra (formatted for use with PROFIL), in case of no
	1121	!-- time averaging, spectra has to be calculated before
	1122	IF ( time_dosp >= dt_dosp ) THEN
	1123	IF ( average_count_sp == 0 ) CALL calc_spectra
	1124	CALL data_output_spectra
	1125	time_dosp = MOD( time_dosp, MAX( dt_dosp, dt_3d ) )
	1126	ENDIF
	1127
	1128	!
	1129	!-- 2d-data output (cross-sections)
	1130	IF ( time_do2d_xy >= dt_do2d_xy ) THEN
	1131	CALL data_output_2d( 'xy', 0 )
	1132	time_do2d_xy = MOD( time_do2d_xy, MAX( dt_do2d_xy, dt_3d ) )
	1133	ENDIF
	1134	IF ( time_do2d_xz >= dt_do2d_xz ) THEN
	1135	CALL data_output_2d( 'xz', 0 )
	1136	time_do2d_xz = MOD( time_do2d_xz, MAX( dt_do2d_xz, dt_3d ) )
	1137	ENDIF
	1138	IF ( time_do2d_yz >= dt_do2d_yz ) THEN
	1139	CALL data_output_2d( 'yz', 0 )
	1140	time_do2d_yz = MOD( time_do2d_yz, MAX( dt_do2d_yz, dt_3d ) )
	1141	ENDIF
	1142
	1143	!
	1144	!-- 3d-data output (volume data)
	1145	IF ( time_do3d >= dt_do3d ) THEN
	1146	CALL data_output_3d( 0 )
	1147	time_do3d = MOD( time_do3d, MAX( dt_do3d, dt_3d ) )
	1148	ENDIF
	1149
	1150	!
[1783]	1151	!-- Masked data output
[410]	1152	DO mid = 1, masks
	1153	IF ( time_domask(mid) >= dt_domask(mid) ) THEN
	1154	CALL data_output_mask( 0 )
	1155	time_domask(mid) = MOD( time_domask(mid), &
	1156	MAX( dt_domask(mid), dt_3d ) )
	1157	ENDIF
	1158	ENDDO
	1159
	1160	!
	1161	!-- Output of time-averaged 2d/3d/masked data
[1]	1162	IF ( time_do_av >= dt_data_output_av ) THEN
	1163	CALL average_3d_data
	1164	CALL data_output_2d( 'xy', 1 )
	1165	CALL data_output_2d( 'xz', 1 )
	1166	CALL data_output_2d( 'yz', 1 )
	1167	CALL data_output_3d( 1 )
[410]	1168	DO mid = 1, masks
	1169	CALL data_output_mask( 1 )
	1170	ENDDO
[1]	1171	time_do_av = MOD( time_do_av, MAX( dt_data_output_av, dt_3d ) )
	1172	ENDIF
	1173
	1174	!
	1175	!-- Output of particle time series
[253]	1176	IF ( particle_advection ) THEN
	1177	IF ( time_dopts >= dt_dopts .OR. &
	1178	( simulated_time >= particle_advection_start .AND. &
[849]	1179	first_call_lpm ) ) THEN
[253]	1180	CALL data_output_ptseries
	1181	time_dopts = MOD( time_dopts, MAX( dt_dopts, dt_3d ) )
	1182	ENDIF
[1]	1183	ENDIF
	1184
	1185	!
	1186	!-- Output of dvrp-graphics (isosurface, particles, slicer)
	1187	#if defined( __dvrp_graphics )
	1188	CALL DVRP_LOG_EVENT( -2, current_timestep_number-1 )
	1189	#endif
	1190	IF ( time_dvrp >= dt_dvrp ) THEN
	1191	CALL data_output_dvrp
	1192	time_dvrp = MOD( time_dvrp, MAX( dt_dvrp, dt_3d ) )
	1193	ENDIF
	1194	#if defined( __dvrp_graphics )
	1195	CALL DVRP_LOG_EVENT( 2, current_timestep_number )
	1196	#endif
	1197
	1198	!
	1199	!-- If required, set the heat flux for the next time step at a random value
	1200	IF ( constant_heatflux .AND. random_heatflux ) CALL disturb_heatflux
	1201
	1202	!
	1203	!-- Execute user-defined actions
	1204	CALL user_actions( 'after_timestep' )
	1205
[1402]	1206	!
[1918]	1207	!-- Determine size of next time step. Save timestep dt_3d because it is
	1208	!-- newly calculated in routine timestep, but required further below for
	1209	!-- steering the run control output interval
	1210	dt_3d_old = dt_3d
	1211	CALL timestep
	1212
	1213	!
[1925]	1214	!-- Synchronize the timestep in case of nested run.
	1215	IF ( nested_run ) THEN
	1216	!
	1217	!-- Synchronize by unifying the time step.
	1218	!-- Global minimum of all time-steps is used for all.
	1219	CALL pmci_synchronize
	1220	ENDIF
	1221
	1222	!
[1918]	1223	!-- Computation and output of run control parameters.
	1224	!-- This is also done whenever perturbations have been imposed
	1225	IF ( time_run_control >= dt_run_control .OR. &
	1226	timestep_scheme(1:5) /= 'runge' .OR. disturbance_created ) &
	1227	THEN
	1228	CALL run_control
	1229	IF ( time_run_control >= dt_run_control ) THEN
	1230	time_run_control = MOD( time_run_control, &
	1231	MAX( dt_run_control, dt_3d_old ) )
	1232	ENDIF
	1233	ENDIF
	1234
	1235	!
[1402]	1236	!-- Output elapsed simulated time in form of a progress bar on stdout
	1237	IF ( myid == 0 ) CALL output_progress_bar
	1238
[1]	1239	CALL cpu_log( log_point_s(10), 'timesteps', 'stop' )
	1240
[667]	1241
[1]	1242	ENDDO ! time loop
	1243
[1402]	1244	IF ( myid == 0 ) CALL finish_progress_bar
	1245
[1]	1246	#if defined( __dvrp_graphics )
	1247	CALL DVRP_LOG_EVENT( -2, current_timestep_number )
	1248	#endif
	1249
[1402]	1250	CALL location_message( 'finished time-stepping', .TRUE. )
[1384]	1251
[1]	1252	END SUBROUTINE time_integration

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