source: palm/trunk/SOURCE/swap_timelevel.f90 @ 1115

Last change on this file since 1115 was 1115, checked in by hoffmann, 12 years ago

optimization of two-moments cloud physics

  • Property svn:keywords set to Id
File size: 4.6 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 1997-2012  Leibniz University Hannover
18!--------------------------------------------------------------------------------!
19!
20! Current revisions:
21! -----------------
22! calculation of qr and nr is restricted to precipitation
23!
24! Former revisions:
25! -----------------
26! $Id: swap_timelevel.f90 1115 2013-03-26 18:16:16Z hoffmann $
27!
28! 1111 2013-03-08 23:54:10Z raasch
29! openACC directives added
30!
31! 1053 2012-11-13 17:11:03Z hoffmann
32! swap of timelevels for nr, qr added
33!
34! 1036 2012-10-22 13:43:42Z raasch
35! code put under GPL (PALM 3.9)
36!
37! 1032 2012-10-21 13:03:21Z letzel
38! save memory by not allocating pt_2 in case of neutral = .T.
39!
40! 1010 2012-09-20 07:59:54Z raasch
41! cpp switch __nopointer added for pointer free version
42!
43! 1001 2012-09-13 14:08:46Z raasch
44! all actions concerning leapfrog scheme removed
45!
46! 102 2007-07-27 09:09:17Z raasch
47! swaping of uswst, vswst included
48!
49! 95 2007-06-02 16:48:38Z raasch
50! Swaping of salinity
51!
52! 75 2007-03-22 09:54:05Z raasch
53! moisture renamed humidity
54!
55! 19 2007-02-23 04:53:48Z raasch
56! Swaping of top fluxes
57!
58! RCS Log replace by Id keyword, revision history cleaned up
59!
60! Revision 1.8  2004/01/28 15:28:18  raasch
61! Swaping for Runge-Kutta schemes implemented
62!
63! Revision 1.1  2000/01/10  10:08:58  10:08:58  raasch (Siegfried Raasch)
64! Initial revision
65!
66!
67! Description:
68! ------------
69! Swap of timelevels of variables after each timestep
70!------------------------------------------------------------------------------!
71
72    USE arrays_3d
73    USE cpulog
74    USE interfaces
75    USE control_parameters
76
77    IMPLICIT NONE
78
79!
80!-- Incrementing timestep counter
81    timestep_count = timestep_count + 1
82
83!
84!-- Swap of variables
85#if defined( __nopointer )
86    CALL cpu_log( log_point(28), 'swap_timelevel (nop)', 'start' )
87
88    !$acc kernels present( pt, pt_p, u, u_p, v, v_p, w, w_p )
89    u  = u_p
90    v  = v_p
91    w  = w_p
92    pt = pt_p
93    !$acc end kernels
94    IF ( .NOT. constant_diffusion )  THEN
95       !$acc kernels present( e, e_p )
96       e = e_p
97       !$acc end kernels
98    ENDIF
99    IF ( ocean )  THEN
100       sa = sa_p
101    ENDIF
102    IF ( humidity  .OR.  passive_scalar )  THEN
103       q = q_p             
104       IF ( cloud_physics  .AND.  icloud_scheme == 0 )  THEN
105          qr = qr_p
106          nr = nr_p
107       ENDIF
108    ENDIF
109
110    CALL cpu_log( log_point(28), 'swap_timelevel (nop)', 'stop' )
111#else
112    CALL cpu_log( log_point(28), 'swap_timelevel', 'start' )
113
114    SELECT CASE ( MOD( timestep_count, 2 ) )
115
116       CASE ( 0 )
117
118          u  => u_1;   u_p  => u_2
119          v  => v_1;   v_p  => v_2
120          w  => w_1;   w_p  => w_2
121          IF ( .NOT. neutral )  THEN
122             pt => pt_1;  pt_p => pt_2
123          ENDIF
124          IF ( .NOT. constant_diffusion )  THEN
125             e => e_1;    e_p => e_2
126          ENDIF
127          IF ( ocean )  THEN
128             sa => sa_1;  sa_p => sa_2
129          ENDIF
130          IF ( humidity  .OR.  passive_scalar )  THEN
131             q => q_1;    q_p => q_2
132             IF ( cloud_physics  .AND.  icloud_scheme == 0  .AND.  &
133                  precipitation )  THEN
134                qr => qr_1;    qr_p => qr_2
135                nr => nr_1;    nr_p => nr_2
136             ENDIF
137          ENDIF
138
139
140       CASE ( 1 )
141
142          u  => u_2;   u_p  => u_1
143          v  => v_2;   v_p  => v_1
144          w  => w_2;   w_p  => w_1
145          IF ( .NOT. neutral )  THEN
146             pt => pt_2;  pt_p => pt_1
147          ENDIF
148          IF ( .NOT. constant_diffusion )  THEN
149             e => e_2;    e_p => e_1
150          ENDIF
151          IF ( ocean )  THEN
152             sa => sa_2;  sa_p => sa_1
153          ENDIF
154          IF ( humidity  .OR.  passive_scalar )  THEN
155             q => q_2;    q_p => q_1
156             IF ( cloud_physics  .AND.  icloud_scheme == 0  .AND.  &
157                  precipitation)  THEN
158                qr => qr_2;    qr_p => qr_1
159                nr => nr_2;    nr_p => nr_1
160             ENDIF
161          ENDIF
162
163
164    END SELECT
165
166    CALL cpu_log( log_point(28), 'swap_timelevel', 'stop' )
167#endif
168
169 END SUBROUTINE swap_timelevel
170
171
Note: See TracBrowser for help on using the repository browser.