C $Header: /home/ubuntu/mnt/e9_copy/MITgcm_contrib/heimbach/cs_adj_advdiff/code_ad/cost_test.F,v 1.5 2006/11/23 21:48:48 heimbach Exp $

#include "PACKAGES_CONFIG.h"
#include "CPP_OPTIONS.h"

      subroutine cost_test( myThid )
C     /==========================================================\
C     | subroutine cost_test                                     |
C     | o this routine computes the cost function for the tiles  |
C     |   of this processor                                      |
C     |==========================================================|
C     |                                                          |
C     | Notes                                                    |
C     | =====                                                    |
C     \==========================================================/
      IMPLICIT NONE

C     == Global variables ===
#include "SIZE.h"
#include "EEPARAMS.h"
#include "PARAMS.h"
#include "DYNVARS.h"
#include "GRID.h"

#include "cost.h"

C     == Routine arguments ==
C     myThid - Thread number for this instance of the routine.
      integer bi, bj
      integer myThid

#ifdef ALLOW_COST_TEST
C     == Local variables
      _RL thetaRef
      _RL sumcost(nSx,nSy)

      integer i, j, k
      integer ig, jg
      integer itlo,ithi
      integer jtlo,jthi

      jtlo = mybylo(mythid)
      jthi = mybyhi(mythid)
      itlo = mybxlo(mythid)
      ithi = mybxhi(mythid)

      if ( useCubedSphereExchange) then
         iLocOut =  3 
         jLocOut =  2
         kLocOut =  1
      else
         iLocOut =  80
         jLocOut =  30
         kLocOut =  1
      endif

ce    some reference temperature
      thetaRef = 24.0D0

C--   Calculate mask for tracer cells  (0 => land, 1 => water)
      k=1

C--   Calculate cost function on tile of this instance
      do bj = jtlo,jthi
        do bi = itlo,ithi

          sumcost(bi,bj) = 0.

          do j=1,sNy
          jg = myYGlobalLo-1+(bj-1)*sNy+j
            do i=1,sNx
            ig = myXGlobalLo-1+(bi-1)*sNx+i

cph            if ( ig .GE. (iLocOut-3) .AND. ig .LE. (iLocOut+3) .AND.
cph     &           jg .GE. (jLocOut-3) .AND. jg .LE. (jLocOut+3) ) then
            if ( ig .GE. 1 .AND. ig .LE. 16 .AND.
     &           jg .GE. 1 .AND. jg .LE. 16 ) then

               write(*,'(a,3(x,i4),a,4(x,i4))')
     &              'COST    ',ig,jg,kLocOut,' TILE ',i,j,bi,bj

               objf_test(bi,bj) = objf_test(bi,bj) +
     &              theta(i,j,kLocOut,bi,bj)*hFacC(i,j,kLocOut,bi,bj)

               sumcost(bi,bj) = sumcost(bi,bj)+hFacC(i,j,kLocOut,bi,bj)
cph(
               print *, 'ph-cost ', ig, jg, kLocOut,
     &              theta(i,j,kLocOut,bi,bj)
cph)
            endif

            end do
          end do

          if ( sumcost(bi,bj) .NE. 0. ) then
              objf_test(bi,bj) = objf_test(bi,bj)/sumcost(bi,bj)
              print *, 'ph-cost ', bi,bj, objf_test(bi,bj)
           endif

        end do
      end do

#endif

      END