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jmc |
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C $Header: /u/gcmpack/MITgcm/eesupp/src/exch_xyz_rx.template,v 1.5 2004/11/18 15:05:38 jmc Exp $ |
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C $Name: $ |
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#include "PACKAGES_CONFIG.h" |
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#include "CPP_EEOPTIONS.h" |
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CBOP |
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C !ROUTINE: EXCH_3D_RX |
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C !INTERFACE: |
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SUBROUTINE EXCH_3D_RX( |
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U phi, |
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I myNz, myThid ) |
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C !DESCRIPTION: |
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C *==========================================================* |
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C | SUBROUTINE EXCH_3D_RX |
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C | o Handle exchanges for _RX, three-dim scalar arrays. |
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C *==========================================================* |
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C | Invoke appropriate exchange routine depending on type |
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C | of grid (cube or globally indexed) to be operated on. |
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C *==========================================================* |
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C !USES: |
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IMPLICIT NONE |
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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 "EXCH.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 myNz :: 3rd dimension of array to exchange |
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C myThid :: My thread id. |
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INTEGER myNz |
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_RX phi(1-OLx:sNx+OLx,1-OLy:sNy+OLy,1:myNz,nSx,nSy) |
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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 |
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CEOP |
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#ifdef ALLOW_EXCH2 |
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CALL EXCH2_3D_RX( phi, myNz, myThid ) |
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RETURN |
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#endif |
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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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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 EXCH_RX_CUBE( 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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ELSE |
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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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ENDIF |
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RETURN |
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END |
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