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jmc |
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C $Header: /u/gcmpack/MITgcm/pkg/exch2/w2_readparms.F,v 1.2 2009/05/16 13:34:16 jmc Exp $ |
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jmc |
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C $Name: $ |
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#include "CPP_EEOPTIONS.h" |
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#include "W2_OPTIONS.h" |
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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CBOP 0 |
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C !ROUTINE: W2_READPARMS |
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C !INTERFACE: |
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SUBROUTINE W2_READPARMS( myThid ) |
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C !DESCRIPTION: |
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C Initialize W2_EXCH2 variables and constants. |
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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 "W2_EXCH2_SIZE.h" |
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#include "W2_EXCH2_TOPOLOGY.h" |
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#include "W2_EXCH2_PARAMS.h" |
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C !INPUT PARAMETERS: |
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C myThid :: my Thread Id number |
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C (Note: not relevant since threading has not yet started) |
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INTEGER myThid |
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CEOP |
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C !LOCAL VARIABLES: |
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C === Local variables === |
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C msgBuf :: Informational/error message buffer |
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C iUnit :: Work variable for IO unit number |
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CHARACTER*(MAX_LEN_MBUF) msgBuf |
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LOGICAL fileExist, errFlag |
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INTEGER i, j, iUnit, stdUnit, errCnt |
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C-- Note: To avoid error in reading the namelist, |
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C use larger local array to read-in lists dimsFacets & facetEdgeLink, |
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C store only W2_maxNbFacets values, and stop if more values are found. |
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INTEGER namList_NbFacets |
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PARAMETER ( namList_NbFacets = W2_maxNbFacets*2 ) |
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INTEGER dimsFacets( 2*namList_NbFacets ) |
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Real*4 facetEdgeLink( 4, namList_NbFacets ) |
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C-- topology defined from processing "data.exch2" (selectTopol=0): |
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C dimsFacets :: facet pair of dimensions (n1x,n1y,n2x,n2y ...) |
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C facetEdgeLink :: Face-Edge connectivity map: |
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C facetEdgeLink(i,j)=XX.1 : face(j)-edge(i) (i=1,2,3,4 <==> N,S,E,W) |
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C is connected to Northern edge of face "XX" ; similarly, |
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C = XX.2 : to Southern.E, XX.3 = Eastern.E, XX.4 = Western.E of face "XX". |
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C-- |
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C edges order: N,S,E,W <==> 1,2,3,4 |
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NAMELIST /W2_EXCH2_PARM01/ |
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& preDefTopol, |
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& dimsFacets, facetEdgeLink, |
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& blankList, |
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& W2_mapIO, |
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& W2_printMsg, |
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& W2_useE2ioLayOut |
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stdUnit = standardMessageUnit |
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C-- Default values for W2_EXCH2 |
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W2_printMsg = -1 |
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W2_mapIO = -1 |
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W2_useE2ioLayOut = .TRUE. |
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IF ( useCubedSphereExchange ) THEN |
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preDefTopol = 3 |
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ELSE |
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preDefTopol = 1 |
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ENDIF |
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DO i=1,W2_maxNbTiles |
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blankList(i) = 0 |
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ENDDO |
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C-- Initialise other params in namelist |
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DO j=1,W2_maxNbFacets*2 |
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dimsFacets(2*j-1) = 0 |
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dimsFacets( 2*j ) = 0 |
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DO i=1,4 |
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facetEdgeLink(i,j) = 0. |
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ENDDO |
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ENDDO |
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C- Initialise other parameters: |
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nFacets = 0 |
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nTiles = 0 |
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nBlankTiles = 0 |
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DO j=1,W2_maxNbFacets |
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facet_dims(2*j-1) = 0 |
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facet_dims( 2*j ) = 0 |
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DO i=1,4 |
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facet_link(i,j) = 0. |
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ENDDO |
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ENDDO |
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C- Check for file "data.ech2": |
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fileExist = .FALSE. |
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INQUIRE( FILE='data.exch2', EXIST=fileExist ) |
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IF ( fileExist ) THEN |
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WRITE(msgBuf,'(A)') 'W2_READPARMS: opening data.exch2' |
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CALL PRINT_MESSAGE( msgBuf, stdUnit, SQUEEZE_RIGHT , myThid ) |
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CALL OPEN_COPY_DATA_FILE( |
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I 'data.exch2', 'W2_READPARMS', |
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O iUnit, |
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I myThid ) |
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C Read parameters from open data file |
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READ(UNIT=iUnit,NML=W2_EXCH2_PARM01) |
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WRITE(msgBuf,'(A)') |
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& 'W2_READPARMS: finished reading data.exch2' |
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CALL PRINT_MESSAGE( msgBuf, stdUnit, SQUEEZE_RIGHT , myThid ) |
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C Close the open data file |
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CLOSE(iUnit) |
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ELSE |
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WRITE(msgBuf,'(A)') 'W2_READPARMS: file data.exch2 not found' |
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CALL PRINT_MESSAGE( msgBuf, stdUnit, SQUEEZE_RIGHT , myThid ) |
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IF ( preDefTopol.EQ.1 ) THEN |
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WRITE(msgBuf,'(2A,I3)') '=> use W2_EXCH2 default:', |
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& ' Single sub-domain (nFacets=1)' |
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ELSEIF ( preDefTopol .EQ. 3 ) THEN |
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WRITE(msgBuf,'(2A,I3)') '=> use W2_EXCH2 default:', |
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& ' regular 6-facets Cube' |
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ELSE |
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WRITE(msgBuf,'(2A,I3)') '=> use W2_EXCH2 default:', |
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& ' preDefTopol=', preDefTopol |
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ENDIF |
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CALL PRINT_MESSAGE( msgBuf, stdUnit, SQUEEZE_RIGHT , myThid ) |
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ENDIF |
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C-- copy local arrays dimsFacets & facetEdgeLink to var in common block |
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DO j=1,2*W2_maxNbFacets |
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c write(0,*) j, dimsFacets(j) |
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facet_dims(j) = dimsFacets(j) |
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ENDDO |
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DO j=1,W2_maxNbFacets |
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DO i=1,4 |
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facet_link(i,j) = facetEdgeLink(i,j) |
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ENDDO |
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ENDDO |
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C-- Check if too many values are specified in data.exch2: |
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errCnt = 0 |
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DO j=W2_maxNbFacets+1,namList_NbFacets |
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errFlag = .FALSE. |
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DO i=1,4 |
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IF ( facetEdgeLink(i,j).NE.0. ) errFlag = .TRUE. |
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ENDDO |
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IF ( errFlag ) errCnt = errCnt + 1 |
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ENDDO |
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IF ( errCnt.GT.0 ) THEN |
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WRITE(msgBuf,'(2A)') ' W2_READPARMS:', |
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& ' Number of "facetEdgeLink" list in "data.exch2"' |
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CALL PRINT_ERROR( msgBuf, myThid ) |
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WRITE(msgBuf,'(A,2(A,I3))') ' W2_READPARMS:', |
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& ' exceeds maxNbFacets(=',W2_maxNbFacets,') by', errCnt |
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CALL PRINT_ERROR( msgBuf, myThid ) |
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errFlag = .TRUE. |
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ELSE |
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errFlag = .FALSE. |
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ENDIF |
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errCnt = 0 |
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DO j=2*W2_maxNbFacets+1,2*namList_NbFacets |
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IF ( dimsFacets(j).NE.0 ) errCnt = errCnt + 1 |
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ENDDO |
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IF ( errCnt.GT.0 ) THEN |
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WRITE(msgBuf,'(2A)') ' W2_READPARMS:', |
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& ' Number of "dimsFacets" in "data.exch2"' |
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CALL PRINT_ERROR( msgBuf, myThid ) |
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WRITE(msgBuf,'(A,2(A,I3))') ' W2_READPARMS:', |
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& ' exceeds 2*maxNbFacets(=',W2_maxNbFacets*2,') by', errCnt |
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CALL PRINT_ERROR( msgBuf, myThid ) |
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ENDIF |
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IF ( errFlag .OR. errCnt.GT.0 ) THEN |
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STOP 'ABNORMAL END: S/R W2_READPARMS' |
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ENDIF |
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C-- Print some Exch2 parameters: |
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WRITE(msgBuf,'(A,L5,A)') 'W2_useE2ioLayOut=', W2_useE2ioLayOut, |
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& ' ;/* T: use Exch2 glob IO map; F: use model default */' |
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CALL PRINT_MESSAGE( msgBuf, stdUnit, SQUEEZE_RIGHT , myThid ) |
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WRITE(msgBuf,'(A,I4,A)') 'W2_mapIO =', W2_mapIO, |
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& ' ; /* select option for Exch2 global-IO map */' |
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CALL PRINT_MESSAGE( msgBuf, stdUnit, SQUEEZE_RIGHT , myThid ) |
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WRITE(msgBuf,'(A,I4,A)') 'W2_printMsg =', W2_printMsg, |
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& ' ; /* select option for printing information */' |
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CALL PRINT_MESSAGE( msgBuf, stdUnit, SQUEEZE_RIGHT , myThid ) |
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1.1 |
RETURN |
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END |
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