source: palm/trunk/SOURCE/swap_timelevel.f90 @ 1374

Last change on this file since 1374 was 1374, checked in by raasch, 7 years ago

bugfixes:
missing variables added to ONLY lists in USE statements (advec_s_bc, advec_s_pw, advec_s_up, advec_ws, buoyancy, diffusion_e, diffusion_s, fft_xy, flow_statistics, palm, prognostic_equations)
missing module kinds added (cuda_fft_interfaces)
dpk renamed dp (fft_xy)
missing dependency for check_open added (Makefile)
variables removed from acc-present-list (diffusion_e, diffusion_w, diffusivities, production_e, wall_fluxes)
syntax errors removed from openacc-branch (flow_statistics)
USE-statement for nopointer-case added (swap_timelevel)

  • Property svn:keywords set to Id
File size: 5.3 KB
Line 
1 SUBROUTINE swap_timelevel
2
3!--------------------------------------------------------------------------------!
4! This file is part of PALM.
5!
6! PALM is free software: you can redistribute it and/or modify it under the terms
7! of the GNU General Public License as published by the Free Software Foundation,
8! either version 3 of the License, or (at your option) any later 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 1997-2014 Leibniz Universitaet Hannover
18!--------------------------------------------------------------------------------!
19!
20! Current revisions:
21! -----------------
22! bugfix: use-statement for nopointer-case added
23!
24! Former revisions:
25! -----------------
26! $Id: swap_timelevel.f90 1374 2014-04-25 12:55:07Z raasch $
27!
28! 1320 2014-03-20 08:40:49Z raasch
29! ONLY-attribute added to USE-statements,
30! revision history before 2012 removed,
31! 1318 2014-03-17 13:35:16Z raasch
32! module interfaces removed
33!
34! 1115 2013-03-26 18:16:16Z hoffmann
35! calculation of qr and nr is restricted to precipitation
36!
37! 1111 2013-03-08 23:54:10Z raasch
38! openACC directives added
39!
40! 1053 2012-11-13 17:11:03Z hoffmann
41! swap of timelevels for nr, qr added
42!
43! 1036 2012-10-22 13:43:42Z raasch
44! code put under GPL (PALM 3.9)
45!
46! 1032 2012-10-21 13:03:21Z letzel
47! save memory by not allocating pt_2 in case of neutral = .T.
48!
49! 1010 2012-09-20 07:59:54Z raasch
50! cpp switch __nopointer added for pointer free version
51!
52! 1001 2012-09-13 14:08:46Z raasch
53! all actions concerning leapfrog scheme removed
54!
55! Revision 1.1  2000/01/10  10:08:58  10:08:58  raasch (Siegfried Raasch)
56! Initial revision
57!
58!
59! Description:
60! ------------
61! Swap of timelevels of variables after each timestep
62!------------------------------------------------------------------------------!
63
64#if defined( __nopointer )
65    USE arrays_3d,                                                             &
66        ONLY:  e, e_p, nr, nr_p, pt, pt_p, q, q_p, qr, qr_p, sa, sa_p, u, u_p, &
67               v, v_p, w, w_p
68#else
69    USE arrays_3d,                                                             &
70        ONLY:  e, e_1, e_2, e_p, nr, nr_1, nr_2, nr_p, pt, pt_1, pt_2, pt_p, q,&
71               q_1, q_2, q_p, qr, qr_1, qr_2, qr_p, sa, sa_1, sa_2, sa_p, u,   &
72               u_1, u_2, u_p, v, v_1, v_2, v_p, w, w_1, w_2, w_p
73#endif
74
75    USE cpulog,                                                                &
76        ONLY: cpu_log, log_point
77
78    USE control_parameters,                                                    &
79        ONLY:  cloud_physics, constant_diffusion, humidity, icloud_scheme,     &
80               neutral, ocean, passive_scalar, precipitation, timestep_count
81
82    IMPLICIT NONE
83
84!
85!-- Incrementing timestep counter
86    timestep_count = timestep_count + 1
87
88!
89!-- Swap of variables
90#if defined( __nopointer )
91    CALL cpu_log( log_point(28), 'swap_timelevel (nop)', 'start' )
92
93    !$acc kernels present( pt, pt_p, u, u_p, v, v_p, w, w_p )
94    u  = u_p
95    v  = v_p
96    w  = w_p
97    pt = pt_p
98    !$acc end kernels
99    IF ( .NOT. constant_diffusion )  THEN
100       !$acc kernels present( e, e_p )
101       e = e_p
102       !$acc end kernels
103    ENDIF
104    IF ( ocean )  THEN
105       sa = sa_p
106    ENDIF
107    IF ( humidity  .OR.  passive_scalar )  THEN
108       q = q_p             
109       IF ( cloud_physics  .AND.  icloud_scheme == 0 )  THEN
110          qr = qr_p
111          nr = nr_p
112       ENDIF
113    ENDIF
114
115    CALL cpu_log( log_point(28), 'swap_timelevel (nop)', 'stop' )
116#else
117    CALL cpu_log( log_point(28), 'swap_timelevel', 'start' )
118
119    SELECT CASE ( MOD( timestep_count, 2 ) )
120
121       CASE ( 0 )
122
123          u  => u_1;   u_p  => u_2
124          v  => v_1;   v_p  => v_2
125          w  => w_1;   w_p  => w_2
126          IF ( .NOT. neutral )  THEN
127             pt => pt_1;  pt_p => pt_2
128          ENDIF
129          IF ( .NOT. constant_diffusion )  THEN
130             e => e_1;    e_p => e_2
131          ENDIF
132          IF ( ocean )  THEN
133             sa => sa_1;  sa_p => sa_2
134          ENDIF
135          IF ( humidity  .OR.  passive_scalar )  THEN
136             q => q_1;    q_p => q_2
137             IF ( cloud_physics  .AND.  icloud_scheme == 0  .AND.  &
138                  precipitation )  THEN
139                qr => qr_1;    qr_p => qr_2
140                nr => nr_1;    nr_p => nr_2
141             ENDIF
142          ENDIF
143
144
145       CASE ( 1 )
146
147          u  => u_2;   u_p  => u_1
148          v  => v_2;   v_p  => v_1
149          w  => w_2;   w_p  => w_1
150          IF ( .NOT. neutral )  THEN
151             pt => pt_2;  pt_p => pt_1
152          ENDIF
153          IF ( .NOT. constant_diffusion )  THEN
154             e => e_2;    e_p => e_1
155          ENDIF
156          IF ( ocean )  THEN
157             sa => sa_2;  sa_p => sa_1
158          ENDIF
159          IF ( humidity  .OR.  passive_scalar )  THEN
160             q => q_2;    q_p => q_1
161             IF ( cloud_physics  .AND.  icloud_scheme == 0  .AND.  &
162                  precipitation)  THEN
163                qr => qr_2;    qr_p => qr_1
164                nr => nr_2;    nr_p => nr_1
165             ENDIF
166          ENDIF
167
168
169    END SELECT
170
171    CALL cpu_log( log_point(28), 'swap_timelevel', 'stop' )
172#endif
173
174 END SUBROUTINE swap_timelevel
175
176
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