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C $Header: /u/gcmpack/MITgcm/pkg/ex3/ex3_atopo_write.F,v 1.3 2006/02/06 21:09:54 edhill Exp $ | 
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C $Name:  $ | 
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 | 
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#include "EX3_OPTIONS.h" | 
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 | 
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| | 
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CBOP              | 
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C     !ROUTINE: EX3_ATOPO_WRITE | 
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 | 
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C     !INTERFACE: | 
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      SUBROUTINE EX3_ATOPO_WRITE | 
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 | 
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C     !DESCRIPTION: | 
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C     Write the EX3 tile topology information to a "flat" ASCII text | 
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C     file that contains a version string. | 
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 | 
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C     !USES: | 
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      IMPLICIT NONE | 
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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 "EX3_SIZE.h" | 
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#include "EX3_PARAMS.h" | 
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#include "EX3_TOPOLOGY.h" | 
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      INTEGER  IFNBLNK | 
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      EXTERNAL IFNBLNK | 
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      INTEGER  ILNBLNK | 
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      EXTERNAL ILNBLNK | 
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CEOP | 
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 | 
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C     !LOCAL VARIABLES: | 
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C     iUnit  :: Work variable for IO unit number | 
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C     errIO  :: IO unit error flag | 
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C     IL     :: Temp. for index strings | 
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C     msgBuf :: Temp. for textual I/O | 
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C     line   :: Temp. for textual I/O | 
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      INTEGER IL, errIO, iUnit | 
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      CHARACTER*(MAX_LEN_MBUF) msgBuf | 
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      INTEGER ii, jj, kk, k, ic, nneigh | 
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 | 
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 | 
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      IL = ILNBLNK(EX3_ATOPO_ONAME) | 
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      iUnit = eeDataUnit | 
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      OPEN(UNIT=iUnit,FILE=EX3_ATOPO_ONAME(1:IL), | 
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     &     status='unknown',err=100,IOSTAT=errIO) | 
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      IF ( errIO .GE. 0 ) GOTO 200 | 
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 100  CONTINUE | 
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      WRITE(msgBuf,'(A)') | 
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     &     'S/R EX3_ATOPO_WRITE' | 
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      CALL PRINT_ERROR( msgBuf , 1) | 
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      WRITE(msgBuf,'(3A)') | 
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     &     'Unable to open file "',EX3_ATOPO_ONAME(1:IL),'"' | 
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      CALL PRINT_ERROR( msgBuf , 1) | 
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      STOP 'ABNORMAL END: S/R EX3_ATOPO_WRITE' | 
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       | 
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 200  CONTINUE | 
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 | 
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C     ========  ASCII FORMAT  ======== | 
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 650  FORMAT(10i12) | 
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C     The above format is not the most efficient way to pack the | 
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C     topology data.  But it does NOT matter!  Considering a | 
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C     hypothetical system with 10,000 tiles (one full order of magnitude | 
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C     larger than any MITgcm run performed through 2005), the file size | 
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C     would still be less than 10MB: | 
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C | 
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C     (10000 tiles) * (~5500 bytes / 6 tiles) = 9.2 MB | 
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C      | 
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C     and this is orders of magnitude smaller than any binary data files | 
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C     that would be needed by such a run. | 
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C | 
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C     Write the topo-file version string : | 
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C     =           0         0 | 
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C     =  123456789 123456789  | 
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C     =  EXCH2TOPO ver 001 | 
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C     =  EX3TOPO ver 001 | 
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C     =              === | 
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C     ========  ASCII FORMAT  ======== | 
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 | 
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      IF ( EX3_ATOPO_OVER(1:3) .EQ. '001' ) THEN | 
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 | 
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        WRITE(iUnit,'(a)') '#' | 
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        WRITE(iUnit,'(a)') '#  MODEL GENERATED' | 
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        WRITE(iUnit,'(a)') '#' | 
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        WRITE(iUnit,'(a)') 'EX3TOPO ver 001' | 
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        WRITE(iUnit,650) ex3_t_num | 
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        DO k = 1,ex3_t_num | 
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           | 
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          WRITE(iUnit,650) k | 
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          WRITE(iUnit,650) | 
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     &         ex3_t_iproc(k), ex3_t_ori(k), | 
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     &         (ex3_t_nxy(ii,k), ii=1,2) | 
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          WRITE(iUnit,650) ex3_f_ind(k), | 
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     &         (ex3_f_nxy(ii,k), ii=1,2), (ex3_f_oij(ii,k), ii=1,2) | 
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          WRITE(iUnit,650) ex3_e_n(k) | 
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          WRITE(iUnit,650) (ex3_e_iam(ii,k), ii=1,ex3_e_n(k)) | 
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          WRITE(iUnit,650) (ex3_e_iopt(ii,k), ii=1,ex3_e_n(k)) | 
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          WRITE(iUnit,650) (ex3_e_iope(ii,k), ii=1,ex3_e_n(k)) | 
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          DO ii = 1,ex3_e_n(k) | 
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            WRITE(iUnit,650) | 
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     &           ((ex3_e_dat(kk,jj,ii,k), kk=1,3), jj=1,2) | 
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          ENDDO | 
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          WRITE(iUnit,650) (ex3_c_n(ii,k), ii=1,4) | 
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          DO ii = 1,4 | 
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            WRITE(iUnit,650) | 
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     &           (ex3_c_ind(jj,ii,k), jj=1,ex3_c_n(ii,k)) | 
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            WRITE(iUnit,650) | 
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     &           (ex3_c_num(jj,ii,k), jj=1,ex3_c_n(ii,k)) | 
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            WRITE(iUnit,650) | 
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     &           (ex3_c_ori(jj,ii,k), jj=1,ex3_c_n(ii,k)) | 
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          ENDDO | 
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           | 
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        ENDDO | 
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 | 
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      ELSE | 
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 | 
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        WRITE(msgBuf,'(A)') | 
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     &       'S/R EX3_ATOPO_WRITE' | 
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        CALL PRINT_ERROR( msgBuf , 1) | 
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        WRITE(msgBuf,'(3A)') | 
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     &       'Unknown topology version ''',EX3_ATOPO_OVER(1:3),'''' | 
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        CALL PRINT_ERROR( msgBuf , 1) | 
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        WRITE(msgBuf,'(3A)') | 
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     &       'Currently, valid values are ''001''' | 
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        CALL PRINT_ERROR( msgBuf , 1) | 
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        STOP 'ABNORMAL END: S/R EX3_ATOPO_WRITE' | 
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 | 
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      ENDIF | 
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 | 
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      CLOSE(iUnit) | 
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 | 
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      RETURN | 
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      END |