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dimitri |
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C $Header: /usr/local/gcmpack/MITgcm_contrib/high_res_cube/code-mods/exch2_uv_xyz_rl.F,v 1.2 2003/11/22 01:16:18 dimitri Exp $ |
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cnh |
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C $Name: $ |
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#include "CPP_EEOPTIONS.h" |
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CBOP |
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C !ROUTINE: EXCH2_UV_XYZ_RL |
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C !INTERFACE: |
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SUBROUTINE EXCH2_UV_XYZ_RL( |
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U Uphi, Vphi, withSigns, |
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I myThid ) |
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IMPLICIT NONE |
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C !DESCRIPTION: |
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C *==========================================================* |
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C | SUBROUTINE EXCH_UV_XYZ_RL |
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C | o Handle exchanges for _RL, 3-dimensional vector arrays. |
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C *==========================================================* |
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C | Vector arrays need to be rotated and interchaged for |
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C | exchange operations on some grids. This driver routine |
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C | branches to support this. |
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C *==========================================================* |
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C !USES: |
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C === Global data === |
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#include "SIZE.h" |
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#include "EEPARAMS.h" |
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#include "EESUPPORT.h" |
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#include "W2_EXCH2_TOPOLOGY.h" |
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#include "W2_EXCH2_PARAMS.h" |
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C !INPUT/OUTPUT PARAMETERS: |
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C === Routine arguments === |
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C phi :: Array with overlap regions are to be exchanged |
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C Note - The interface to EXCH_RL assumes that |
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C the standard Fortran 77 sequence association rules |
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C apply. |
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C myThid :: My thread id. |
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_RL Uphi(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy) |
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_RL Vphi(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy) |
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LOGICAL withSigns |
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INTEGER myThid |
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C !LOCAL VARIABLES: |
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C == Local variables == |
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C OL[wens] :: Overlap extents in west, east, north, south. |
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C exchWidth[XY] :: Extent of regions that will be exchanged. |
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INTEGER OLw, OLe, OLn, OLs, exchWidthX, exchWidthY, myNz |
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dimitri |
1.2 |
INTEGER bi, bj, myTile, k |
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cnh |
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CEOP |
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OLw = OLx |
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OLe = OLx |
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OLn = OLy |
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OLs = OLy |
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exchWidthX = OLx |
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exchWidthY = OLy |
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myNz = Nr |
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C ** NOTE ** The exchange routine we use here does not |
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C require the preceeding and following barriers. |
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C However, the slow, simple exchange interface |
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C that is calling it here is meant to ensure |
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C that threads are synchronised before exchanges |
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C begine. |
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IF (useCubedSphereExchange) THEN |
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CALL EXCH2_RL2_CUBE( Uphi, Vphi, withSigns, 'UV', |
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I OLw, OLe, OLs, OLn, myNz, |
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I exchWidthX, exchWidthY, |
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I FORWARD_SIMULATION, EXCH_UPDATE_CORNERS, myThid ) |
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CALL EXCH2_RL2_CUBE( Uphi, Vphi, withSigns, 'UV', |
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I OLw, OLe, OLs, OLn, myNz, |
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I exchWidthX, exchWidthY, |
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I FORWARD_SIMULATION, EXCH_UPDATE_CORNERS, myThid ) |
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CALL EXCH2_RL2_CUBE( Uphi, Vphi, withSigns, 'UV', |
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I OLw, OLe, OLs, OLn, myNz, |
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I exchWidthX, exchWidthY, |
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I FORWARD_SIMULATION, EXCH_UPDATE_CORNERS, myThid ) |
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CALL EXCH2_RL2_CUBE( Uphi, Vphi, withSigns, 'UV', |
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I OLw, OLe, OLs, OLn, myNz, |
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I exchWidthX, exchWidthY, |
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I FORWARD_SIMULATION, EXCH_UPDATE_CORNERS, myThid ) |
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DO bj=myByLo(myThid),myByHi(myThid) |
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DO bi=myBxLo(myThid),myBxHi(myThid) |
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myTile = W2_myTileList(bi) |
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dimitri |
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IF ( exch2_isEedge(myTile) .EQ. 1 .AND. |
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& exch2_isSedge(myTile) .EQ. 1 ) THEN |
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DO k=1,Nr |
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Uphi(snx+1, 0,k,bi,bj)= vPhi(snx+1, 1,k,bi,bj) |
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ENDDO |
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cnh |
1.1 |
ENDIF |
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IF ( withSigns ) THEN |
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dimitri |
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IF ( exch2_isEedge(myTile) .EQ. 1 .AND. |
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& exch2_isNedge(myTile) .EQ. 1 ) THEN |
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DO k=1,Nr |
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Uphi(snx+1,sny+1,k,bi,bj)=-vPhi(snx+1,sny+1,k,bi,bj) |
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ENDDO |
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cnh |
1.1 |
ENDIF |
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ELSE |
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dimitri |
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IF ( exch2_isEedge(myTile) .EQ. 1 .AND. |
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& exch2_isNedge(myTile) .EQ. 1 ) THEN |
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DO k=1,Nr |
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Uphi(snx+1,sny+1,k,bi,bj)= vPhi(snx+1,sny+1,k,bi,bj) |
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ENDDO |
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cnh |
1.1 |
ENDIF |
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ENDIF |
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ENDDO |
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ENDDO |
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ELSE |
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c CALL EXCH_RL( Uphi, |
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c I OLw, OLe, OLs, OLn, myNz, |
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c I exchWidthX, exchWidthY, |
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c I FORWARD_SIMULATION, EXCH_UPDATE_CORNERS, myThid ) |
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c CALL EXCH_RL( Vphi, |
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c I OLw, OLe, OLs, OLn, myNz, |
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c I exchWidthX, exchWidthY, |
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c I FORWARD_SIMULATION, EXCH_UPDATE_CORNERS, myThid ) |
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c_jmc: for JAM compatibility, replace the 2 CALLs above by the 2 CPP_MACROs: |
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_EXCH_XYZ_RL( Uphi, myThid ) |
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_EXCH_XYZ_RL( Vphi, myThid ) |
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ENDIF |
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RETURN |
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END |
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