source: palm/trunk/SOURCE/swap_timelevel.f90 @ 3637

Last change on this file since 3637 was 3637, checked in by knoop, 3 years ago

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1!> @file swap_timelevel.f90
2!------------------------------------------------------------------------------!
3! This file is part of the PALM model system.
4!
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.
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!
17! Copyright 1997-2018 Leibniz Universitaet Hannover
18!------------------------------------------------------------------------------!
19!
20! Current revisions:
21! -----------------
22!
23!
24! Former revisions:
25! -----------------
26! $Id: swap_timelevel.f90 3637 2018-12-20 01:51:36Z knoop $
27! Implementation of the PALM module interface
28!
29! 3636 2018-12-19 13:48:34Z raasch
30! nopointer option removed
31!
32! 3589 2018-11-30 15:09:51Z suehring
33! Move the control parameter "salsa" from salsa_mod to control_parameters
34! (M. Kurppa)
35!
36! 3582 2018-11-29 19:16:36Z suehring
37! Implementation of a new aerosol module salsa.
38!
39! 3303 2018-10-03 12:04:15Z raasch
40! bugfix for swapping in case of ocean mode
41!
42! 3294 2018-10-01 02:37:10Z raasch
43! changes concerning modularization of ocean option
44!
45! 3274 2018-09-24 15:42:55Z knoop
46! Modularization of all bulk cloud physics code components
47!
48! 3241 2018-09-12 15:02:00Z raasch
49! unused variables removed
50!
51! 2817 2018-02-19 16:32:21Z knoop
52! Preliminary gust module interface implemented
53!
54! 2766 2018-01-22 17:17:47Z kanani
55! Removed preprocessor directive __chem
56!
57! 2718 2018-01-02 08:49:38Z maronga
58! Corrected "Former revisions" section
59!
60! 2696 2017-12-14 17:12:51Z kanani
61! Change in file header (GPL part)
62! Moved TKE to turbulence_closure_mod (TG)
63! Implementation of chemistry module (FK)
64!
65! 2350 2017-08-15 11:48:26Z kanani
66! Bugfix in nopointer version
67!
68! 2292 2017-06-20 09:51:42Z schwenkel
69! Implementation of new microphysic scheme: cloud_scheme = 'morrison'
70! includes two more prognostic equations for cloud drop concentration (nc) 
71! and cloud water content (qc).
72!
73! 2233 2017-05-30 18:08:54Z suehring
74!
75! 2232 2017-05-30 17:47:52Z suehring
76! Adjustments to new surface concept
77!
78! 2118 2017-01-17 16:38:49Z raasch
79! OpenACC directives removed
80!
81! 2011 2016-09-19 17:29:57Z kanani
82! Flag urban_surface is now defined in module control_parameters.
83!
84! 2007 2016-08-24 15:47:17Z kanani
85! Added swapping of urban surface model quantities,
86! removed redundance for land surface model
87!
88! 2000 2016-08-20 18:09:15Z knoop
89! Forced header and separation lines into 80 columns
90!
91! 1960 2016-07-12 16:34:24Z suehring
92! Separate humidity and passive scalar
93!
94! 1822 2016-04-07 07:49:42Z hoffmann
95! icloud_scheme replaced by microphysics_*
96!
97! swap_timelevel.f90 1766 2016-02-29 08:37:15Z raasch
98! setting the swap level for pmc data transfer
99!
100! 1747 2016-02-08 12:25:53Z raasch
101! explicit loops in nopointer case to omit craypointer option of pgi compiler
102!
103! 1682 2015-10-07 23:56:08Z knoop
104! Code annotations made doxygen readable
105!
106! 1496 2014-12-02 17:25:50Z maronga
107! Added swapping of land surface model quantities
108!
109! 1374 2014-04-25 12:55:07Z raasch
110! bugfix: use-statement for nopointer-case added
111!
112! 1320 2014-03-20 08:40:49Z raasch
113! ONLY-attribute added to USE-statements,
114! revision history before 2012 removed,
115! 1318 2014-03-17 13:35:16Z raasch
116! module interfaces removed
117!
118! 1115 2013-03-26 18:16:16Z hoffmann
119! calculation of qr and nr is restricted to precipitation
120!
121! 1111 2013-03-08 23:54:10Z raasch
122! openACC directives added
123!
124! 1053 2012-11-13 17:11:03Z hoffmann
125! swap of timelevels for nr, qr added
126!
127! 1036 2012-10-22 13:43:42Z raasch
128! code put under GPL (PALM 3.9)
129!
130! 1032 2012-10-21 13:03:21Z letzel
131! save memory by not allocating pt_2 in case of neutral = .T.
132!
133! 1010 2012-09-20 07:59:54Z raasch
134! cpp switch __nopointer added for pointer free version
135!
136! 1001 2012-09-13 14:08:46Z raasch
137! all actions concerning leapfrog scheme removed
138!
139! Revision 1.1  2000/01/10  10:08:58  10:08:58  raasch (Siegfried Raasch)
140! Initial revision
141!
142!
143! Description:
144! ------------
145!> Swap of timelevels of variables after each timestep
146!------------------------------------------------------------------------------!
147 SUBROUTINE swap_timelevel
148 
149
150    USE arrays_3d,                                                             &
151        ONLY:  nc, nc_1, nc_2, nc_p, nr, nr_1, nr_2, nr_p, pt, pt_1, pt_2,     &
152               pt_p, q, q_1, q_2, q_p, qc, qc_1, qc_2, qc_p, qr, qr_1, qr_2,   &
153               qr_p, s, s_1, s_2, s_p, sa, sa_1, sa_2, sa_p, u, u_1, u_2, u_p, &
154               v, v_1, v_2, v_p, w, w_1, w_2, w_p
155
156    USE cpulog,                                                                &
157        ONLY: cpu_log, log_point
158
159    USE control_parameters,                                                    &
160        ONLY:  humidity, neutral, passive_scalar, timestep_count
161
162    USE kinds
163
164    USE module_interface,                                                      &
165        ONLY:  module_interface_swap_timelevel
166
167    USE pmc_interface,                                                         &
168        ONLY: nested_run, pmci_set_swaplevel
169
170    USE turbulence_closure_mod,                                                &
171        ONLY:  tcm_swap_timelevel
172
173
174    IMPLICIT NONE
175
176    INTEGER(iwp) ::  swap_level  !> swap_level for steering the pmc data transfer
177
178!
179!-- Incrementing timestep counter
180    timestep_count = timestep_count + 1
181
182!
183!-- Swap of variables
184    CALL cpu_log( log_point(28), 'swap_timelevel', 'start' )
185
186    SELECT CASE ( MOD( timestep_count, 2 ) )
187
188       CASE ( 0 )
189
190          u  => u_1;   u_p  => u_2
191          v  => v_1;   v_p  => v_2
192          w  => w_1;   w_p  => w_2
193          IF ( .NOT. neutral )  THEN
194             pt => pt_1;  pt_p => pt_2
195          ENDIF
196          IF ( humidity )  THEN
197             q => q_1;    q_p => q_2
198          ENDIF
199          IF ( passive_scalar )  THEN
200             s => s_1;    s_p => s_2
201          ENDIF
202
203          swap_level = 1
204
205       CASE ( 1 )
206
207          u  => u_2;   u_p  => u_1
208          v  => v_2;   v_p  => v_1
209          w  => w_2;   w_p  => w_1
210          IF ( .NOT. neutral )  THEN
211             pt => pt_2;  pt_p => pt_1
212          ENDIF
213          IF ( humidity )  THEN
214             q => q_2;    q_p => q_1
215          ENDIF
216          IF ( passive_scalar )  THEN
217             s => s_2;    s_p => s_1
218          ENDIF
219
220          swap_level = 2
221
222    END SELECT
223
224!
225!-- Set the swap level the turbulence closure module
226    CALL tcm_swap_timelevel( MOD( timestep_count, 2) )
227
228!
229!-- Set the swap level for all other modules
230    CALL module_interface_swap_timelevel( MOD( timestep_count, 2) )
231
232!
233!-- Set the swap level for steering the pmc data transfer
234    IF ( nested_run )  CALL pmci_set_swaplevel( swap_level )
235
236    CALL cpu_log( log_point(28), 'swap_timelevel', 'stop' )
237
238 END SUBROUTINE swap_timelevel
239
240
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