| 1 |
C $Header: /u/gcmpack/MITgcm/pkg/exch2/exch2_sm_3d_rx.template,v 1.6 2012/03/26 19:43:10 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 |
#include "W2_EXCH2_SIZE.h" |
| 39 |
#include "W2_EXCH2_TOPOLOGY.h" |
| 40 |
|
| 41 |
C !INPUT/OUTPUT PARAMETERS: |
| 42 |
C == Argument list variables == |
| 43 |
INTEGER myNz |
| 44 |
_RX phi(1-OLx:sNx+OLx,1-OLy:sNy+OLy,myNz,nSx,nSy) |
| 45 |
LOGICAL withSigns |
| 46 |
INTEGER myThid |
| 47 |
|
| 48 |
C !LOCAL VARIABLES: |
| 49 |
C == Local variables == |
| 50 |
C i,j,k,bi,bj :: loop indices. |
| 51 |
C OL[wens] :: Overlap extents in west, east, north, south. |
| 52 |
C exchWidth[XY] :: Extent of regions that will be exchanged. |
| 53 |
|
| 54 |
INTEGER i,j,k,bi,bj |
| 55 |
INTEGER OLw, OLe, OLn, OLs, exchWidthX, exchWidthY |
| 56 |
_RX negOne |
| 57 |
INTEGER myTile, myFace |
| 58 |
CEOP |
| 59 |
|
| 60 |
OLw = OLx |
| 61 |
OLe = OLx |
| 62 |
OLn = OLy |
| 63 |
OLs = OLy |
| 64 |
exchWidthX = OLx |
| 65 |
exchWidthY = OLy |
| 66 |
negOne = 1. |
| 67 |
IF (withSigns) negOne = -1. |
| 68 |
|
| 69 |
C-- First call the exchanges |
| 70 |
|
| 71 |
CALL EXCH2_RX1_CUBE( phi, .FALSE., 'T ', |
| 72 |
I OLw, OLe, OLs, OLn, myNz, |
| 73 |
I exchWidthX, exchWidthY, |
| 74 |
I EXCH_IGNORE_CORNERS, myThid ) |
| 75 |
CALL EXCH2_RX1_CUBE( phi, .FALSE., 'T ', |
| 76 |
I OLw, OLe, OLs, OLn, myNz, |
| 77 |
I exchWidthX, exchWidthY, |
| 78 |
I EXCH_UPDATE_CORNERS, myThid ) |
| 79 |
|
| 80 |
C- note: can substitute the low-level S/R call above with: |
| 81 |
c CALL EXCH2_3D_RX( phi, myNz, myThid ) |
| 82 |
|
| 83 |
IF ( useCubedSphereExchange .AND. withSigns ) THEN |
| 84 |
C--- using CubedSphereExchange with Signs: |
| 85 |
|
| 86 |
C-- Then we may need to switch the signs depending on which cube face |
| 87 |
C we are located. |
| 88 |
|
| 89 |
C-- Loops on tile indices: |
| 90 |
DO bj = myByLo(myThid), myByHi(myThid) |
| 91 |
DO bi = myBxLo(myThid), myBxHi(myThid) |
| 92 |
|
| 93 |
C Choose what to do at each edge of the halo based on which face we are |
| 94 |
myTile = W2_myTileList(bi,bj) |
| 95 |
myFace = exch2_myFace(myTile) |
| 96 |
|
| 97 |
C-- Loops on level index: |
| 98 |
DO k = 1,myNz |
| 99 |
|
| 100 |
C- odd (or even) faces share disposition of all sections of the halo |
| 101 |
IF ( MOD(myFace,2).EQ.1 ) THEN |
| 102 |
C-- Face 1,3,5: |
| 103 |
|
| 104 |
C- North: |
| 105 |
IF (exch2_isNedge(myTile).EQ.1) THEN |
| 106 |
DO j = 1,exchWidthY |
| 107 |
DO i = 1-OLx,sNx+OLx |
| 108 |
phi(i,sNy+j,k,bi,bj) = phi(i,sNy+j,k,bi,bj)*negOne |
| 109 |
ENDDO |
| 110 |
ENDDO |
| 111 |
ENDIF |
| 112 |
C- South: (nothing to change) |
| 113 |
c IF (exch2_isSedge(myTile).EQ.1) THEN |
| 114 |
c DO j = 1,exchWidthY |
| 115 |
c DO i = 1-OLx,sNx+OLx |
| 116 |
c phi(i,1-j,k,bi,bj) = phi(i,1-j,k,bi,bj) |
| 117 |
c ENDDO |
| 118 |
c ENDDO |
| 119 |
c ENDIF |
| 120 |
C- East: (nothing to change) |
| 121 |
c IF (exch2_isEedge(myTile).EQ.1) THEN |
| 122 |
c DO j = 1-OLy,sNy+OLy |
| 123 |
c DO i = 1,exchWidthX |
| 124 |
c phi(sNx+i,j,k,bi,bj) = phi(sNx+i,j,k,bi,bj) |
| 125 |
c ENDDO |
| 126 |
c ENDDO |
| 127 |
c ENDIF |
| 128 |
C- West: |
| 129 |
IF (exch2_isWedge(myTile).EQ.1) THEN |
| 130 |
DO j = 1-OLy,sNy+OLy |
| 131 |
DO i = 1,exchWidthX |
| 132 |
phi(1-i,j,k,bi,bj) = phi(1-i,j,k,bi,bj)*negOne |
| 133 |
ENDDO |
| 134 |
ENDDO |
| 135 |
ENDIF |
| 136 |
|
| 137 |
ELSE |
| 138 |
C-- Face 2,4,6: |
| 139 |
|
| 140 |
C- East: |
| 141 |
IF (exch2_isEedge(myTile).EQ.1) THEN |
| 142 |
DO j = 1-OLy,sNy+OLy |
| 143 |
DO i = 1,exchWidthX |
| 144 |
phi(sNx+i,j,k,bi,bj) = phi(sNx+i,j,k,bi,bj)*negOne |
| 145 |
ENDDO |
| 146 |
ENDDO |
| 147 |
ENDIF |
| 148 |
C- West: (nothing to change) |
| 149 |
c IF (exch2_isWedge(myTile).EQ.1) THEN |
| 150 |
c DO j = 1-OLy,sNy+OLy |
| 151 |
c DO i = 1,exchWidthX |
| 152 |
c phi(1-i,j,k,bi,bj) = phi(1-i,j,k,bi,bj) |
| 153 |
c ENDDO |
| 154 |
c ENDDO |
| 155 |
c ENDIF |
| 156 |
C- North: (nothing to change) |
| 157 |
c IF (exch2_isNedge(myTile).EQ.1) THEN |
| 158 |
c DO j = 1,exchWidthY |
| 159 |
c DO i = 1-OLx,sNx+OLx |
| 160 |
c phi(i,sNy+j,k,bi,bj) = phi(i,sNy+j,k,bi,bj) |
| 161 |
c ENDDO |
| 162 |
c ENDDO |
| 163 |
c ENDIF |
| 164 |
C- South: |
| 165 |
IF (exch2_isSedge(myTile).EQ.1) THEN |
| 166 |
DO j = 1,exchWidthY |
| 167 |
DO i = 1-OLx,sNx+OLx |
| 168 |
phi(i,1-j,k,bi,bj) = phi(i,1-j,k,bi,bj)*negOne |
| 169 |
ENDDO |
| 170 |
ENDDO |
| 171 |
ENDIF |
| 172 |
|
| 173 |
C-- End odd / even faces |
| 174 |
ENDIF |
| 175 |
|
| 176 |
C-- end of Loops on tile and level indices (k,bi,bj). |
| 177 |
ENDDO |
| 178 |
ENDDO |
| 179 |
ENDDO |
| 180 |
|
| 181 |
C--- using or not using CubedSphereExchange with Signs: end |
| 182 |
ENDIF |
| 183 |
|
| 184 |
RETURN |
| 185 |
END |
| 186 |
|
| 187 |
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
| 188 |
|
| 189 |
CEH3 ;;; Local Variables: *** |
| 190 |
CEH3 ;;; mode:fortran *** |
| 191 |
CEH3 ;;; End: *** |
Parent Directory
| 
Revision Log
| 
Revision Graph