C $Header: /u/gcmpack/MITgcm/pkg/debug/debug_cs_corner_uv.F,v 1.8 2013/11/27 00:40:31 jmc Exp $
C $Name: $
#include "DEBUG_OPTIONS.h"
SUBROUTINE DEBUG_CS_CORNER_UV(
I word2print,
I uFld, vFld,
I k, ioUnit, bi,bj, myThid )
C *==========================================================*
C | S/R DEBUG_CS_CORNER_UV |
C | o check UV fields at Egdes of CS grid, near corners. |
C *==========================================================*
C | Values of U,V fields at the Edges of the CS grid |
C | are common to 2 faces, and are stored + used in 2 |
C | places (2 tiles): one in the interior of the 1rst tile, |
C | the other in the halo of the 2nd one. |
C | This S/R print the 2 values and check that they are |
C | identical (print the difference). |
C | This is specially usefull for checking that gU,gV are |
C | correct before entering solve_for_pressure. |
C *==========================================================*
C | Note: only works on a 1.cpu set up with square tiles |
C *==========================================================*
IMPLICIT NONE
C == Global variables ==
#include "SIZE.h"
#include "EEPARAMS.h"
#ifdef ALLOW_EXCH2
#include "W2_EXCH2_SIZE.h"
#include "W2_EXCH2_TOPOLOGY.h"
#endif
c #include "PARAMS.h"
c #include "GRID.h"
C == Routine arguments ==
C word2print :: a string to print
C uFld :: u component of 2D vector
C vFld :: v component of 2D vector
C k :: current level
C ioUnit :: I/O unit number
C bi,bj :: tile indices
C myThid :: Instance number for this invocation of
CHARACTER*(*) word2print
_RL uFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
_RL vFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
INTEGER k, ioUnit
INTEGER bi, bj
INTEGER myThid
#ifdef ALLOW_DEBUG
C == Local variables in common block :
COMMON / DEBUG_CS_CORNER_UV_LOCAL / tmpU, tmpV
_RL tmpU(4,Nr,nSx*nSy)
_RL tmpV(4,Nr,nSx*nSy)
C == Local variables ==
C edgeIndex :: index (in X or Y) from the W. or S. edge of the tile
C :: of the U,V field to write
C n1 :: combined bi,bj index for current tile
C n2, n3 :: combined bi,bj index for W. and S. neigbour tile
C t1 :: current tile id
C t2, t3 :: tile id of W. and S. neigbour tile
#ifdef ALLOW_EXCH2
INTEGER t1, t2, t3
#endif
INTEGER n1, n2, n3
INTEGER edgeIndex
INTEGER ic, i, j
EXTERNAL
INTEGER ILNBLNK
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----|
edgeIndex = 1
j = MIN(MAX(1-Olx,edgeIndex),Olx)
n1 = bi + (bj-1)*nSx
1010 FORMAT(2A,I2,1PE12.4,I3,1P2E12.4)
c IF (k.EQ.4 .AND. myIter.EQ.nIter0 ) THEN
tmpU(1,k,n1)= uFld(1,j)
tmpU(2,k,n1)= uFld(1,sNy+1-j)
tmpU(3,k,n1)= uFld(sNx+1,j)
tmpU(4,k,n1)= uFld(sNx+1,sNy+1-j)
tmpV(1,k,n1)= vFld(j,1)
tmpV(2,k,n1)= vFld(sNx+1-j,1)
tmpV(3,k,n1)= vFld(j,sNy+1)
tmpV(4,k,n1)= vFld(sNx+1-j,sNy+1)
_BARRIER
#ifdef ALLOW_EXCH2
IF (bi.EQ.nSx .AND. bj.EQ.nSy .AND. sNx.EQ.sNy) THEN
#else /* ALLOW_EXCH2 */
IF (bi.EQ.nSx .AND. nSy.EQ.1 .AND. nSx.EQ.6) THEN
#endif /* ALLOW_EXCH2 */
WRITE(ioUnit,'(2A)') 'DEBUG_CS_CORNER_UV: ',
& '------------------------------------------------------------'
ic = MAX(1,ILNBLNK(word2print))
WRITE(ioUnit,'(3A,I3)') 'DEBUG_CS_CORNER_UV: ',
& word2print(1:ic), ' , index=', j
WRITE(ioUnit,'(2A,I4)') 'DEBUG_CS_CORNER_UV: ',
& ' Edges values near a corner, lev=',k
WRITE(ioUnit,'(2A)') 'DEBUG_CS_CORNER_UV: ',
& ' tile_1, value_1, tile_2, value_2, difference v1-v2:'
DO j=1,nSy
DO i=1,nSx
#ifdef ALLOW_EXCH2
n1 = i + (j-1)*nSx
n2 = 0
n3 = 0
t1 = W2_myTileList(i,j)
t2 = exch2_neighbourId(4,t1)
t3 = exch2_neighbourId(2,t1)
IF ( W2_tileProc(t2).EQ.myProcId+1 ) n2 = W2_tileIndex(t2)
IF ( W2_tileProc(t3).EQ.myProcId+1 ) n3 = W2_tileIndex(t3)
IF ( n2.GE.1 .AND. exch2_pij(3,4,t1).EQ.-1 ) THEN
WRITE(ioUnit,1010) 'DEBUG_CS_CORNER_UV: ', 'W edge, S:',
& t1,tmpU(1,k,n1), t2,tmpV(4,k,n2),
& tmpU(1,k,n1) - tmpV(4,k,n2)
WRITE(ioUnit,1010) 'DEBUG_CS_CORNER_UV: ', 'W edge, N:',
& t1,tmpU(2,k,n1), t2,tmpV(3,k,n2),
& tmpU(2,k,n1) - tmpV(3,k,n2)
ENDIF
IF ( n2.GE.1 .AND. exch2_pij(4,4,t1).EQ.1 ) THEN
WRITE(ioUnit,1010) 'DEBUG_CS_CORNER_UV: ', 'W edge, S:',
& t1,tmpU(1,k,n1), t2,tmpU(3,k,n2),
& tmpU(1,k,n1) - tmpU(3,k,n2)
WRITE(ioUnit,1010) 'DEBUG_CS_CORNER_UV: ', 'W edge, N:',
& t1,tmpU(2,k,n1), t2,tmpU(4,k,n2),
& tmpU(2,k,n1) - tmpU(4,k,n2)
ENDIF
IF ( n3.GE.1 .AND. exch2_pij(1,2,t1).EQ.1 ) THEN
WRITE(ioUnit,1010) 'DEBUG_CS_CORNER_UV: ', 'S edge, W:',
& t1,tmpV(1,k,n1), t3,tmpV(3,k,n3),
& tmpV(1,k,n1) - tmpV(3,k,n3)
WRITE(ioUnit,1010) 'DEBUG_CS_CORNER_UV: ', 'S edge, E:',
& t1,tmpV(2,k,n1), t3,tmpV(4,k,n3),
& tmpV(2,k,n1) - tmpV(4,k,n3)
ENDIF
IF ( n3.GE.1 .AND. exch2_pij(2,2,t1).EQ.-1 ) THEN
WRITE(ioUnit,1010) 'DEBUG_CS_CORNER_UV: ', 'S edge, W:',
& t1,tmpV(1,k,n1), t3,tmpU(4,k,n3),
& tmpV(1,k,n1) - tmpU(4,k,n3)
WRITE(ioUnit,1010) 'DEBUG_CS_CORNER_UV: ', 'S edge, E:',
& t1,tmpV(2,k,n1), t3,tmpU(3,k,n3),
& tmpV(2,k,n1) - tmpU(3,k,n3)
ENDIF
#else /* ALLOW_EXCH2 */
n1 = i
IF (MOD(n1,2).EQ.1 ) THEN
c n1=1 n2=5,+v,-
c n1=1 n3=6,+v,+
c n1=3 n2=1,+v,-
c n1=3 n3=2,+v,+
c n1=5 n2=3,+v,-
c n1=5 n3=4,+v,+
n2 = 1+MOD(n1-2+5,6)
n3 = 1+MOD(n1-1+5,6)
WRITE(ioUnit,1010) 'DEBUG_CS_CORNER_UV: ', 'W edge, S:',
& n1,tmpU(1,k,n1), n2,tmpV(4,k,n2),
& tmpU(1,k,n1) - tmpV(4,k,n2)
WRITE(ioUnit,1010) 'DEBUG_CS_CORNER_UV: ', 'W edge, N:',
& n1,tmpU(2,k,n1), n2,tmpV(3,k,n2),
& tmpU(2,k,n1) - tmpV(3,k,n2)
WRITE(ioUnit,1010) 'DEBUG_CS_CORNER_UV: ', 'S edge, W:',
& n1,tmpV(1,k,n1), n3,tmpV(3,k,n3),
& tmpV(1,k,n1) - tmpV(3,k,n3)
WRITE(ioUnit,1010) 'DEBUG_CS_CORNER_UV: ', 'S edge, E:',
& n1,tmpV(2,k,n1), n3,tmpV(4,k,n3),
& tmpV(2,k,n1) - tmpV(4,k,n3)
ELSE
c n1=2 n2=1,+u,+
c n1=2 n3=6,+u,-
c n1=4 n2=3,+u,+
c n1=4 n3=2,+u,-
c n1=6 n2=5,+u,+
c n1=6 n3=4,+u,-
n2 = 1+MOD(n1-1+5,6)
n3 = 1+MOD(n1-2+5,6)
WRITE(ioUnit,1010) 'DEBUG_CS_CORNER_UV: ', 'W edge, S:',
& n1,tmpU(1,k,n1), n2,tmpU(3,k,n2),
& tmpU(1,k,n1) - tmpU(3,k,n2)
WRITE(ioUnit,1010) 'DEBUG_CS_CORNER_UV: ', 'W edge, N:',
& n1,tmpU(2,k,n1), n2,tmpU(4,k,n2),
& tmpU(2,k,n1) - tmpU(4,k,n2)
WRITE(ioUnit,1010) 'DEBUG_CS_CORNER_UV: ', 'S edge, W:',
& n1,tmpV(1,k,n1), n3,tmpU(4,k,n3),
& tmpV(1,k,n1) - tmpU(4,k,n3)
WRITE(ioUnit,1010) 'DEBUG_CS_CORNER_UV: ', 'S edge, E:',
& n1,tmpV(2,k,n1), n3,tmpU(3,k,n3),
& tmpV(2,k,n1) - tmpU(3,k,n3)
ENDIF
#endif /* ALLOW_EXCH2 */
ENDDO
ENDDO
WRITE(ioUnit,'(2A)') 'DEBUG_CS_CORNER_UV: ',
& '------------------------------------------------------------'
ENDIF
c ENDIF
#endif /* ALLOW_DEBUG */
RETURN
END