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C $Header: /u/gcmpack/MITgcm/pkg/exch2/exch2_z_xy_rx.template,v 1.1 2004/09/22 15:23:00 jmc Exp $ |
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C $Name: $ |
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|
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#include "CPP_EEOPTIONS.h" |
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#include "W2_OPTIONS.h" |
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|
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CBOP |
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|
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C !ROUTINE: EXCH_Z_XY_RX |
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|
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C !INTERFACE: |
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SUBROUTINE EXCH2_Z_XY_RX( |
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U phi, |
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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_Z_XY_RX |
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C | o Handle exchanges for _RX two-dim zeta-point array. |
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C *==========================================================* |
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C | Invoke appropriate exchange for a zeta-point array |
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C | for either global grid, or cube sphere grid. |
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C *==========================================================* |
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|
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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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|
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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 myThid :: My thread id. |
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_RX phi(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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INTEGER myThid |
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|
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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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C mFace :: face number |
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C phiNW,phiSE :: temporary array to hold corner value (CS grid) |
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INTEGER OLw, OLe, OLn, OLs, exchWidthX, exchWidthY, myNz |
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INTEGER bi, bj, myTile, i, j |
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INTEGER mFace |
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_RX phiNW(nSx,nSy) |
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_RX phiSE(nSx,nSy) |
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CEOP |
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|
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|
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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 = 1 |
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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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|
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IF (useCubedSphereExchange) THEN |
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|
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C- save 2 corners value (in case we find 1 "missing corner") |
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DO bj=myByLo(myThid),myByHi(myThid) |
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DO bi=myBxLo(myThid),myBxHi(myThid) |
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phiNW(bi,bj) = phi(1,sNy+1,bi,bj) |
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phiSE(bi,bj) = phi(sNx+1,1,bi,bj) |
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ENDDO |
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ENDDO |
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|
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CALL EXCH2_RX1_CUBE( phi, 'T ', |
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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_RX1_CUBE( phi, 'T ', |
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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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|
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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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mFace = exch2_myFace(myTile) |
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|
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C--- Face 2,4,6: |
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IF ( MOD(mFace,2).EQ.0 ) THEN |
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|
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C-- East edge : shift j <- j-1 |
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IF ( exch2_isEedge(myTile) .EQ. 1 ) THEN |
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DO j=sNy+OLy,2-Oly,-1 |
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DO i=sNx+1,sNx+OLx |
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phi(i,j,bi,bj)=phi(i,j-1,bi,bj) |
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ENDDO |
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ENDDO |
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C- North-East corner |
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IF ( exch2_isNedge(myTile) .EQ. 1 ) THEN |
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DO j=sNy+2,sNy+OLy |
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i=sNx-sNy+j |
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phi(sNx+1,j,bi,bj)=phi(i,sNy+1,bi,bj) |
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ENDDO |
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#ifdef W2_FILL_NULL_REGIONS |
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DO j=sNy+2,sNy+OLy |
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DO i=sNx+2,sNx+OLx |
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phi(i,j,bi,bj)=e2FillValue_RX |
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ENDDO |
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ENDDO |
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#endif |
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ENDIF |
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ENDIF |
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C-- South edge : shift i <- i-1 |
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IF ( exch2_isSedge(myTile) .EQ. 1 ) THEN |
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DO j=1-OLy,0 |
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DO i=sNx+OLx,2-Olx,-1 |
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phi(i,j,bi,bj)=phi(i-1,j,bi,bj) |
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ENDDO |
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ENDDO |
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C- South-East corner |
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IF ( exch2_isEedge(myTile) .EQ. 1 ) THEN |
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phi(sNx+1,1,bi,bj)=phiSE(bi,bj) |
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DO i=sNx+2,sNx+OLx |
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j=sNx+2-i |
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phi(i,1,bi,bj)=phi(sNx+1,j,bi,bj) |
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ENDDO |
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#ifdef W2_FILL_NULL_REGIONS |
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DO j=1-OLy,0 |
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DO i=sNx+2,sNx+OLx |
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phi(i,j,bi,bj)=e2FillValue_RX |
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ENDDO |
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ENDDO |
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#endif |
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ENDIF |
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C- South-West corner |
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IF ( exch2_isWedge(myTile) .EQ. 1 ) THEN |
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DO j=1-OLy,0 |
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phi(1,j,bi,bj)=phi(j,1,bi,bj) |
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#ifdef W2_FILL_NULL_REGIONS |
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DO i=1-OLx,0 |
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phi(i,j,bi,bj)=e2FillValue_RX |
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ENDDO |
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#endif |
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ENDDO |
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ENDIF |
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ENDIF |
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C-- North-west corner |
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IF ( exch2_isWedge(myTile) .EQ. 1 .AND. |
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& exch2_isNedge(myTile) .EQ. 1 ) THEN |
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DO i=2-OLx,0 |
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j=sNy+2-i |
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phi(i,sNy+1,bi,bj)=phi(1,j,bi,bj) |
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ENDDO |
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#ifdef W2_FILL_NULL_REGIONS |
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DO j=sNy+2,sNy+OLy |
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DO i=1-OLx,0 |
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phi(i,j,bi,bj)=e2FillValue_RX |
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ENDDO |
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ENDDO |
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phi(1-Olx,sNy+1,bi,bj)=e2FillValue_RX |
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#endif |
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ENDIF |
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|
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ELSE |
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C--- Face 1,3,5: |
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|
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C-- North edge : shift i <- i-1 |
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IF ( exch2_isNedge(myTile) .EQ. 1 ) THEN |
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DO j=sNy+1,sNy+Oly |
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DO i=sNx+OLx,2-Olx,-1 |
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phi(i,j,bi,bj)=phi(i-1,j,bi,bj) |
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ENDDO |
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ENDDO |
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C- North-East corner |
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IF ( exch2_isEedge(myTile) .EQ. 1 ) THEN |
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DO i=sNx+2,sNx+OLx |
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j=sNy-sNx+i |
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phi(i,sNy+1,bi,bj)=phi(sNx+1,j,bi,bj) |
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ENDDO |
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#ifdef W2_FILL_NULL_REGIONS |
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DO j=sNy+2,sNy+OLy |
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DO i=sNx+2,sNx+OLx |
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phi(i,j,bi,bj)=e2FillValue_RX |
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ENDDO |
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ENDDO |
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#endif |
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ENDIF |
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ENDIF |
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C-- West edge : shift j <- j-1 |
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IF ( exch2_isWedge(myTile) .EQ. 1 ) THEN |
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DO j=sNy+OLy,2-Oly,-1 |
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DO i=1-Olx,0 |
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phi(i,j,bi,bj)=phi(i,j-1,bi,bj) |
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ENDDO |
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ENDDO |
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C- North-west corner |
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IF ( exch2_isNedge(myTile) .EQ. 1 ) THEN |
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phi(1,sNy+1,bi,bj)=phiNW(bi,bj) |
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DO j=sNy+2,sNy+OLy |
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i=sNy+2-j |
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phi(1,j,bi,bj)=phi(i,sNy+1,bi,bj) |
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ENDDO |
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#ifdef W2_FILL_NULL_REGIONS |
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DO j=sNy+2,sNy+OLy |
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DO i=1-OLx,0 |
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phi(i,j,bi,bj)=e2FillValue_RX |
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ENDDO |
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ENDDO |
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#endif |
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ENDIF |
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C- South-West corner |
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IF ( exch2_isSedge(myTile) .EQ. 1 ) THEN |
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DO i=1-OLx,0 |
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phi(i,1,bi,bj)=phi(1,i,bi,bj) |
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ENDDO |
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#ifdef W2_FILL_NULL_REGIONS |
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DO j=1-OLy,0 |
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DO i=1-OLx,0 |
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phi(i,j,bi,bj)=e2FillValue_RX |
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ENDDO |
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ENDDO |
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#endif |
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ENDIF |
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ENDIF |
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C- South-East corner |
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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 j=2-OLy,0 |
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i=sNx+2-j |
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phi(sNx+1,j,bi,bj)=phi(i,1,bi,bj) |
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ENDDO |
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#ifdef W2_FILL_NULL_REGIONS |
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DO j=1-OLy,0 |
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DO i=sNx+2,sNx+OLx |
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phi(i,j,bi,bj)=e2FillValue_RX |
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ENDDO |
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ENDDO |
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phi(sNx+1,1-Oly,bi,bj)=e2FillValue_RX |
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#endif |
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ENDIF |
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|
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C--- end odd / even face number |
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ENDIF |
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|
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ENDDO |
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ENDDO |
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|
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ELSE |
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|
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CALL EXCH_RX( phi, |
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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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|
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ENDIF |
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|
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RETURN |
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END |
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|
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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|
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CEH3 ;;; Local Variables: *** |
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CEH3 ;;; mode:fortran *** |
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CEH3 ;;; End: *** |
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