1 |
C $Header: /u/gcmpack/MITgcm/pkg/exch2/exch2_sm_3d_rx.template,v 1.1 2007/08/16 21:10:22 jmc Exp $ |
2 |
C $Name: $ |
3 |
|
4 |
#include "CPP_EEOPTIONS.h" |
5 |
#include "W2_OPTIONS.h" |
6 |
|
7 |
CBOP |
8 |
C !ROUTINE: EXCH2_SM_3D_RX |
9 |
|
10 |
C !INTERFACE: |
11 |
SUBROUTINE EXCH2_SM_3D_RX( |
12 |
U phi, |
13 |
I withSigns, myNz, myThid ) |
14 |
|
15 |
C !DESCRIPTION: |
16 |
C*=====================================================================* |
17 |
C Purpose: SUBROUTINE EXCH2_SM_3D_RX |
18 |
C handle exchanges for Second Moment (Sxy) 3D field |
19 |
C (for quantity which Sign depend on X & Y orientation), at Mass point |
20 |
C |
21 |
C Input: |
22 |
C phi(lon,lat,levs,bi,bj) :: array with overlap regions are to be exchanged |
23 |
C withSigns (logical) :: true to use sign of components |
24 |
C myNz :: 3rd dimension of input arrays uPhi,vPhi |
25 |
C myThid :: my Thread Id number |
26 |
C |
27 |
C Output: phi is updated (halo regions filled) |
28 |
C |
29 |
C Calls: exch_RX (exch2_RX1_cube) |
30 |
C |
31 |
C*=====================================================================* |
32 |
|
33 |
C !USES: |
34 |
IMPLICIT NONE |
35 |
|
36 |
#include "SIZE.h" |
37 |
#include "EEPARAMS.h" |
38 |
c#include "EESUPPORT.h" |
39 |
#include "W2_EXCH2_TOPOLOGY.h" |
40 |
#include "W2_EXCH2_PARAMS.h" |
41 |
|
42 |
C !INPUT/OUTPUT PARAMETERS: |
43 |
C == Argument list variables == |
44 |
INTEGER myNz |
45 |
_RX phi(1-OLx:sNx+OLx,1-OLy:sNy+OLy,myNz,nSx,nSy) |
46 |
LOGICAL withSigns |
47 |
INTEGER myThid |
48 |
|
49 |
C !LOCAL VARIABLES: |
50 |
C == Local variables == |
51 |
C i,j,k,bi,bj :: loop indices. |
52 |
C OL[wens] :: Overlap extents in west, east, north, south. |
53 |
C exchWidth[XY] :: Extent of regions that will be exchanged. |
54 |
|
55 |
INTEGER i,j,k,bi,bj |
56 |
INTEGER OLw, OLe, OLn, OLs, exchWidthX, exchWidthY |
57 |
_RX negOne |
58 |
INTEGER myTile, myFace |
59 |
CEOP |
60 |
|
61 |
OLw = OLx |
62 |
OLe = OLx |
63 |
OLn = OLy |
64 |
OLs = OLy |
65 |
exchWidthX = OLx |
66 |
exchWidthY = OLy |
67 |
negOne = 1. |
68 |
IF (withSigns) negOne = -1. |
69 |
|
70 |
IF ( useCubedSphereExchange ) THEN |
71 |
C--- using CubedSphereExchange: |
72 |
|
73 |
C-- First call the exchanges |
74 |
|
75 |
CALL EXCH2_RX1_CUBE( phi, 'T ', |
76 |
I OLw, OLe, OLs, OLn, myNz, |
77 |
I exchWidthX, exchWidthY, |
78 |
I FORWARD_SIMULATION, EXCH_UPDATE_CORNERS, myThid ) |
79 |
CALL EXCH2_RX1_CUBE( phi, 'T ', |
80 |
I OLw, OLe, OLs, OLn, myNz, |
81 |
I exchWidthX, exchWidthY, |
82 |
I FORWARD_SIMULATION, EXCH_UPDATE_CORNERS, myThid ) |
83 |
|
84 |
C- note: can substitute the low-level S/R call above with: |
85 |
c CALL EXCH2_3D_RX( phi, myNz, myThid ) |
86 |
|
87 |
C-- Then we may need to switch u and v components |
88 |
C and/or the signs depending on which cube face we are located. |
89 |
|
90 |
C-- Loops on tile indices: |
91 |
DO bj = myByLo(myThid), myByHi(myThid) |
92 |
DO bi = myBxLo(myThid), myBxHi(myThid) |
93 |
|
94 |
C-- Then we may need to switch the signs depending on which cube face |
95 |
C we are located (we assume that bj is always=1). |
96 |
C Choose what to do at each edge of the halo based on which face |
97 |
myTile = W2_myTileList(bi) |
98 |
myFace = exch2_myFace(myTile) |
99 |
|
100 |
C-- Loops on level index: |
101 |
DO k = 1,myNz |
102 |
|
103 |
C- odd (or even) faces share disposition of all sections of the halo |
104 |
IF ( MOD(myFace,2).EQ.1 ) THEN |
105 |
C-- Face 1,3,5: |
106 |
|
107 |
C- North: |
108 |
IF (exch2_isNedge(myTile).EQ.1) THEN |
109 |
DO j = 1,exchWidthY |
110 |
DO i = 1-OLx,sNx+OLx |
111 |
phi(i,sNy+j,k,bi,bj) = phi(i,sNy+j,k,bi,bj)*negOne |
112 |
ENDDO |
113 |
ENDDO |
114 |
ENDIF |
115 |
C- South: (nothing to change) |
116 |
c IF (exch2_isSedge(myTile).EQ.1) THEN |
117 |
c DO j = 1,exchWidthY |
118 |
c DO i = 1-OLx,sNx+OLx |
119 |
c phi(i,1-j,k,bi,bj) = phi(i,1-j,k,bi,bj) |
120 |
c ENDDO |
121 |
c ENDDO |
122 |
c ENDIF |
123 |
C- East: (nothing to change) |
124 |
c IF (exch2_isEedge(myTile).EQ.1) THEN |
125 |
c DO j = 1-OLy,sNy+OLy |
126 |
c DO i = 1,exchWidthX |
127 |
c phi(sNx+i,j,k,bi,bj) = phi(sNx+i,j,k,bi,bj) |
128 |
c ENDDO |
129 |
c ENDDO |
130 |
c ENDIF |
131 |
C- West: |
132 |
IF (exch2_isWedge(myTile).EQ.1) THEN |
133 |
DO j = 1-OLy,sNy+OLy |
134 |
DO i = 1,exchWidthX |
135 |
phi(1-i,j,k,bi,bj) = phi(1-i,j,k,bi,bj)*negOne |
136 |
ENDDO |
137 |
ENDDO |
138 |
ENDIF |
139 |
|
140 |
ELSE |
141 |
C-- Face 2,4,6: |
142 |
|
143 |
C- East: |
144 |
IF (exch2_isEedge(myTile).EQ.1) THEN |
145 |
DO j = 1-OLy,sNy+OLy |
146 |
DO i = 1,exchWidthX |
147 |
phi(sNx+i,j,k,bi,bj) = phi(sNx+i,j,k,bi,bj)*negOne |
148 |
ENDDO |
149 |
ENDDO |
150 |
ENDIF |
151 |
C- West: (nothing to change) |
152 |
c IF (exch2_isWedge(myTile).EQ.1) THEN |
153 |
c DO j = 1-OLy,sNy+OLy |
154 |
c DO i = 1,exchWidthX |
155 |
c phi(1-i,j,k,bi,bj) = phi(1-i,j,k,bi,bj) |
156 |
c ENDDO |
157 |
c ENDDO |
158 |
c ENDIF |
159 |
C- North: (nothing to change) |
160 |
c IF (exch2_isNedge(myTile).EQ.1) THEN |
161 |
c DO j = 1,exchWidthY |
162 |
c DO i = 1-OLx,sNx+OLx |
163 |
c phi(i,sNy+j,k,bi,bj) = phi(i,sNy+j,k,bi,bj) |
164 |
c ENDDO |
165 |
c ENDDO |
166 |
c ENDIF |
167 |
C- South: |
168 |
IF (exch2_isSedge(myTile).EQ.1) THEN |
169 |
DO j = 1,exchWidthY |
170 |
DO i = 1-OLx,sNx+OLx |
171 |
phi(i,1-j,k,bi,bj) = phi(i,1-j,k,bi,bj)*negOne |
172 |
ENDDO |
173 |
ENDDO |
174 |
ENDIF |
175 |
|
176 |
C-- End odd / even faces |
177 |
ENDIF |
178 |
|
179 |
C-- end of Loops on tile and level indices (k,bi,bj). |
180 |
ENDDO |
181 |
ENDDO |
182 |
ENDDO |
183 |
|
184 |
ELSE |
185 |
C--- not using CubedSphereExchange: |
186 |
|
187 |
#ifndef AUTODIFF_EXCH2 |
188 |
CALL EXCH_RX( phi, |
189 |
I OLw, OLe, OLs, OLn, myNz, |
190 |
I exchWidthX, exchWidthY, |
191 |
I FORWARD_SIMULATION, EXCH_UPDATE_CORNERS, myThid ) |
192 |
#endif |
193 |
|
194 |
C--- using or not using CubedSphereExchange: end |
195 |
ENDIF |
196 |
|
197 |
RETURN |
198 |
END |
199 |
|
200 |
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
201 |
|
202 |
CEH3 ;;; Local Variables: *** |
203 |
CEH3 ;;; mode:fortran *** |
204 |
CEH3 ;;; End: *** |