C $Header: /u/gcmpack/MITgcm/model/src/ini_global_domain.F,v 1.1 2012/07/13 22:07:09 jmc Exp $ C $Name: $ #include "PACKAGES_CONFIG.h" #include "CPP_OPTIONS.h" CBOP C !ROUTINE: INI_GLOBAL_DOMAIN C !INTERFACE: SUBROUTINE INI_GLOBAL_DOMAIN( myThid ) C !DESCRIPTION: \bv C *==========================================================* C | SUBROUTINE INI_GLOBAL_DOMAIN C | o Initialise domain (i.e., where there is fluid) C | related (global) quantities. C | Called after grid and masks are set (ini_grid, C | ini_masks) or modified (packages_init_fixed call). C *==========================================================* C | Compute global domain Area ; C *==========================================================* C \ev C !USES: IMPLICIT NONE C === Global variables === #include "SIZE.h" #include "EEPARAMS.h" #include "PARAMS.h" #include "GRID.h" #ifdef ALLOW_EXCH2 # include "W2_EXCH2_SIZE.h" # include "W2_EXCH2_TOPOLOGY.h" #endif /* ALLOW_EXCH2 */ C !INPUT/OUTPUT PARAMETERS: C === Routine arguments === C myThid :: my Thread Id number INTEGER myThid C == Local variables in common == _RL tileArea(nSx,nSy), threadArea C put tileArea in (local) common block to print from master-thread: COMMON / LOCAL_INI_GLOB_DOMAIN / tileArea C !LOCAL VARIABLES: C === Local variables === C bi,bj :: tile indices C i, j :: Loop counters INTEGER bi, bj INTEGER i, j, nCorners CHARACTER*(MAX_LEN_MBUF) msgBuf LOGICAL northWestCorner, northEastCorner, & southWestCorner, southEastCorner #ifdef ALLOW_EXCH2 INTEGER myTile #endif /* ALLOW_EXCH2 */ CEOP C-- Initialisation #ifdef NONLIN_FRSURF C-- Save initial geometrical hFac factor into h0Fac (fixed in time): C better here (after packages_init_fixed call) than in INI_MASKS_ETC C in case 1 pkg would need to modify them. C <= moved to INI_MASK_ETC , despite comment above, since: C a) in case 1 pkg is changing hFac, this pkg should also update h0Fac C b) pkg/shelfice does modify hFac but done directly within ini_masks_etc #endif /* NONLIN_FRSURF */ C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| C-- Calculate global domain area: C use to be in ini_masks_etc.F but has been move after packages_init_fixed C in case 1 pkg (e.g., OBCS) modifies the domain size. threadArea = 0. _d 0 DO bj = myByLo(myThid), myByHi(myThid) DO bi = myBxLo(myThid), myBxHi(myThid) C- Compute the domain Area: tileArea(bi,bj) = 0. _d 0 DO j=1,sNy DO i=1,sNx tileArea(bi,bj) = tileArea(bi,bj) & + rA(i,j,bi,bj)*maskInC(i,j,bi,bj) ENDDO ENDDO c threadArea = threadArea + tileArea(bi,bj) ENDDO ENDDO c#ifdef ALLOW_AUTODIFF_TAMC C_jmc: apply GLOBAL_SUM to thread-local variable (not in common block) c _GLOBAL_SUM_RL( threadArea, myThid ) c#else CALL GLOBAL_SUM_TILE_RL( tileArea, threadArea, myThid ) c#endif _BEGIN_MASTER( myThid ) globalArea = threadArea C- list empty tiles: msgBuf(1:1) = ' ' DO bj = 1,nSy DO bi = 1,nSx IF ( tileArea(bi,bj).EQ.0. _d 0 ) THEN #ifdef ALLOW_EXCH2 WRITE(msgBuf,'(A,I6,A,2I4,A)') & 'Empty tile: #', W2_myTileList(bi,bj), ' (bi,bj=',bi,bj,' )' #else WRITE(msgBuf,'(A,I6,I6)') 'Empty tile bi,bj=', bi, bj #endif CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, & SQUEEZE_RIGHT, myThid ) ENDIF ENDDO ENDDO IF ( msgBuf(1:1).NE.' ' ) THEN WRITE(msgBuf,'(A)') ' ' CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, & SQUEEZE_RIGHT, myThid ) ENDIF _END_MASTER( myThid ) C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| C-- With Cubed-Sphere Exchanges, check if CS-corners are part of the domain IF ( useCubedSphereExchange ) THEN nCorners = 0 DO bj = myByLo(myThid), myByHi(myThid) DO bi = myBxLo(myThid), myBxHi(myThid) #ifdef ALLOW_EXCH2 myTile = W2_myTileList(bi,bj) southWestCorner = exch2_isWedge(myTile).EQ.1 & .AND. exch2_isSedge(myTile).EQ.1 southEastCorner = exch2_isEedge(myTile).EQ.1 & .AND. exch2_isSedge(myTile).EQ.1 northEastCorner = exch2_isEedge(myTile).EQ.1 & .AND. exch2_isNedge(myTile).EQ.1 northWestCorner = exch2_isWedge(myTile).EQ.1 & .AND. exch2_isNedge(myTile).EQ.1 #else /* ALLOW_EXCH2 */ southWestCorner = .TRUE. southEastCorner = .TRUE. northWestCorner = .TRUE. northEastCorner = .TRUE. #endif /* ALLOW_EXCH2 */ IF ( southWestCorner .AND. kSurfC( 1 , 1 ,bi,bj).LE.Nr ) & nCorners = nCorners + 1 IF ( southEastCorner .AND. kSurfC(sNx, 1 ,bi,bj).LE.Nr ) & nCorners = nCorners + 1 IF ( northWestCorner .AND. kSurfC( 1 ,sNy,bi,bj).LE.Nr ) & nCorners = nCorners + 1 IF ( northEastCorner .AND. kSurfC(sNx,sNy,bi,bj).LE.Nr ) & nCorners = nCorners + 1 ENDDO ENDDO CALL GLOBAL_SUM_INT( nCorners, myThid ) _BEGIN_MASTER( myThid ) IF ( nCorners.GE.1 ) hasWetCSCorners = .TRUE. WRITE(msgBuf,'(A,I4,A)') 'INI_GLOBAL_DOMAIN: Found', & nCorners, ' CS-corner Pts in the domain' CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, & SQUEEZE_RIGHT, myThid ) _END_MASTER( myThid ) ENDIF C-- Everyone else must wait for global-domain parameters to be set _BARRIER C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| RETURN END