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C $Header: /u/gcmpack/MITgcm/eesupp/src/exch_uv_3d_rx.template,v 1.3 2007/07/25 21:19:44 jmc Exp $ |
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jmc |
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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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1.3 |
#ifdef ALLOW_EXCH2 |
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#include "W2_OPTIONS.h" |
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#endif |
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CBOP |
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C !ROUTINE: EXCH_UV_3D_RX |
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C !INTERFACE: |
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SUBROUTINE EXCH_UV_3D_RX( |
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U Uphi, Vphi, |
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I withSigns, myNz, myThid ) |
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C !DESCRIPTION: |
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C *==========================================================* |
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C | SUBROUTINE EXCH_UV_3D_RX |
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C | o Handle exchanges for _RX, 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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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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c#include "EESUPPORT.h" |
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c#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 Note - The interface to EXCH_RX 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 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 Uphi(1-OLx:sNx+OLx,1-OLy:sNy+OLy,myNz,nSx,nSy) |
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_RX Vphi(1-OLx:sNx+OLx,1-OLy:sNy+OLy,myNz,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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1.4 |
#ifndef ALLOW_EXCH2 |
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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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#endif |
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CEOP |
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#ifdef ALLOW_EXCH2 |
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#ifdef W2_USE_R1_ONLY |
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CALL EXCH2_UV_CGRID_3D_RX( |
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U Uphi, Vphi, |
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I withSigns, myNz, myThid ) |
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#else |
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CALL EXCH2_UV_3D_RX( |
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U Uphi, Vphi, |
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I withSigns, myNz, myThid ) |
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#endif |
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1.1 |
RETURN |
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#else /* ALLOW_EXCH2 */ |
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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_UV_RX_CUBE( Uphi, Vphi, withSigns, |
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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( Uphi, |
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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 EXCH_RX( Vphi, |
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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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#endif /* ALLOW_EXCH2 */ |
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1.1 |
END |
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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CEH3 ;;; Local Variables: *** |
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CEH3 ;;; mode:fortran *** |
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CEH3 ;;; End: *** |
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