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jmc |
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C $Header: /u/gcmpack/MITgcm/pkg/exch2/w2_e2setup.F,v 1.3 2008/07/29 20:25:23 jmc Exp $ |
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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_SET_CS6_FACETS( myThid ) |
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C !INTERFACE: |
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SUBROUTINE W2_SET_CS6_FACETS( myThid ) |
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C !DESCRIPTION: |
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C Set-up multi facets(=sub-domains) topology : 6 facets Cube case |
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C Facet Dimension taken from the 1rst 3 facet_dims (nRed, nGreen, nBlue) |
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C if provided in "data.exch2"; if not, assume regular Cube (equal size) |
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C and derive single dimension from "SIZE.h". |
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C !USES: |
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IMPLICIT NONE |
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C Tile toplogy settings data structures |
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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_PARAMS.h" |
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#include "W2_EXCH2_TOPOLOGY.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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C !LOCAL VARIABLES: |
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C === Local variables === |
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C msgBuf :: Informational/error meesage buffer |
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CHARACTER*(MAX_LEN_MBUF) msgBuf |
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CHARACTER*1 edge(4) |
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INTEGER i, j, ii, jj, lo, ll |
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INTEGER nRd, nGr, nBl |
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INTEGER setDims, addDims |
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LOGICAL prtFlag |
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Real*4 tmpVar |
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CEOP |
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DATA edge / 'N' , 'S' , 'E' , 'W' / |
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WRITE(msgBuf,'(2A,I3,A)') 'W2_SET_CS6_FACETS:', |
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& ' preDefTopol=', preDefTopol, ' selected' |
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CALL PRINT_MESSAGE( msgBuf, W2_oUnit,SQUEEZE_RIGHT,myThid ) |
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prtFlag = ABS(W2_printMsg).GE.2 |
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& .OR. ( W2_printMsg .NE.0 .AND. myProcId.EQ.0 ) |
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C-- Number of facets: |
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nFacets = 6 |
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IF ( nfacets.GT.W2_maxNbFacets ) |
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& STOP 'ABNORMAL END: S/R W2_SET_CS6_FACETS (nFacets>maxNbFacets)' |
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C-- Facet Edge connections ( edges order: N,S,E,W <==> 1,2,3,4 ) |
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DO j=1,nFacets |
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IF ( MOD(j,2).EQ.1 ) THEN |
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jj = j+2 |
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facet_link(1,j) = 0.4 + FLOAT( 1+MOD(jj+5,6) ) |
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jj = j-1 |
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facet_link(2,j) = 0.1 + FLOAT( 1+MOD(jj+5,6) ) |
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jj = j+1 |
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facet_link(3,j) = 0.4 + FLOAT( 1+MOD(jj+5,6) ) |
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jj = j-2 |
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facet_link(4,j) = 0.1 + FLOAT( 1+MOD(jj+5,6) ) |
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ELSE |
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jj = j+1 |
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facet_link(1,j) = 0.2 + FLOAT( 1+MOD(jj+5,6) ) |
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jj = j-2 |
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facet_link(2,j) = 0.3 + FLOAT( 1+MOD(jj+5,6) ) |
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jj = j+2 |
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facet_link(3,j) = 0.2 + FLOAT( 1+MOD(jj+5,6) ) |
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jj = j-1 |
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facet_link(4,j) = 0.3 + FLOAT( 1+MOD(jj+5,6) ) |
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ENDIF |
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ENDDO |
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C-- facet dimension: take the 1rst 3 numbers from facet_dims |
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nRd = facet_dims(1) |
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nGr = facet_dims(2) |
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nBl = facet_dims(3) |
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DO j=4,W2_maxNbFacets*2 |
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IF ( facet_dims(j).NE.0 ) THEN |
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WRITE(msgBuf,'(2A,I5)') 'W2_SET_CS6_FACETS:', |
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& ' no more than 3 dims (nRd,nGr,nBl) expected for CS-6 Topol' |
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CALL PRINT_MESSAGE( msgBuf, W2_oUnit,SQUEEZE_RIGHT,myThid ) |
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CALL PRINT_ERROR( msgBuf, myThid ) |
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STOP 'ABNORMAL END: S/R W2_SET_CS6_FACETS: allows 3 dims only' |
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ENDIF |
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ENDDO |
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IF ( nRd.GT.0 .AND. nGr+nBl.EQ.0 ) THEN |
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C- Only 1rst dim is set: assuming a regular Cube |
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nGr = nRd |
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nBl = nRd |
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ELSEIF ( nRd+nGr+nBl.EQ.0 ) THEN |
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C- try to get cube size from number of tiles, assuming a regular Cube |
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nGr = nTiles*sNx*sNy |
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tmpVar = FLOAT(nGr)/6. |
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tmpVar = SQRT(tmpVar) |
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nRd = NINT(tmpVar) |
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IF ( nRd*nRd*6 .EQ. nGr ) THEN |
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nGr = nRd |
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nBl = nRd |
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WRITE(msgBuf,'(2A,I5)') 'W2_SET_CS6_FACETS:', |
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& ' facet-dims Unset; assume nRd=nGr=nBl=', nRd |
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CALL PRINT_MESSAGE( msgBuf, W2_oUnit,SQUEEZE_RIGHT,myThid ) |
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ELSE |
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WRITE(msgBuf,'(3(A,I4),A,I10,A,I6,A)') |
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& ' nTiles*sNx*sNy=', nTiles, ' x',sNx,' x',sNy,' =',nGr |
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CALL PRINT_MESSAGE( msgBuf, W2_oUnit,SQUEEZE_RIGHT,myThid ) |
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WRITE(msgBuf,'(A,I6,A,I10)') |
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& ' not equal to: 6 x',nRd,'^2 =', nRd*nRd*6 |
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CALL PRINT_MESSAGE( msgBuf, W2_oUnit,SQUEEZE_RIGHT,myThid ) |
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WRITE(msgBuf,'(2A,I5)') 'W2_SET_CS6_FACETS:', |
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& ' facet-dims Unset; attempt to fit single dim FAIL' |
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CALL PRINT_MESSAGE( msgBuf, W2_oUnit,SQUEEZE_RIGHT,myThid ) |
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CALL PRINT_ERROR( msgBuf, myThid ) |
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ENDIF |
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ENDIF |
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IF ( nRd*nGr*nBl.EQ.0 ) |
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& STOP 'ABNORMAL END: S/R W2_SET_CS6_FACETS (Dims are missing)' |
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C-- Set facet dimension : 1rst 3 are known: |
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facet_dims(1) = nRd |
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facet_dims(2) = nGr |
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facet_dims(3) = nBl |
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C- Derive the other using from connection graph (topology): |
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setDims = 3 |
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addDims = 1 |
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DO WHILE ( addDims.GT.0 ) |
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addDims = 0 |
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DO j=2,nFacets |
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DO i=1,4 |
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C- connected to: |
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jj = INT(facet_link(i,j)) |
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ii = MOD( NINT(facet_link(i,j)*10.), 10 ) |
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IF ( jj.GE.1 .AND. jj.LE.nFacets |
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& .AND. ii.GE.1 .AND. ii.LE.4 ) THEN |
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C- Length of N or S Edge = x-size, E or W Edge = y-size |
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lo = 2*(j-1) + (i+1)/2 |
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C- Corresponding Edge length |
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ll = 2*(jj-1)+(ii+1)/2 |
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IF ( facet_dims(lo).EQ.0 .AND. facet_dims(ll).GT.0 ) THEN |
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addDims = addDims + 1 |
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facet_dims(lo) = facet_dims(ll) |
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IF ( prtFlag ) THEN |
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WRITE(msgBuf,'(A,I3,3A,2(I4,A),I3,3A,I8)') |
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& ' facet',j,'.',edge(i), ' set dim', lo, ' = dim', ll, |
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& ' from',jj,'.',edge(ii),' :',facet_dims(ll) |
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CALL PRINT_MESSAGE(msgBuf,W2_oUnit,SQUEEZE_RIGHT,myThid) |
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ENDIF |
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ENDIF |
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ENDIF |
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ENDDO |
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ENDDO |
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setDims = setDims + addDims |
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ENDDO |
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IF ( setDims.NE.nFacets*2 ) THEN |
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WRITE(msgBuf,'(A,I3,A)') ' W2_SET_CS6_FACETS:', |
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& nFacets*2-setDims, ' facet-dims left Unset' |
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CALL PRINT_MESSAGE( msgBuf, W2_oUnit, SQUEEZE_RIGHT, myThid ) |
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CALL PRINT_ERROR( msgBuf, myThid ) |
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DO j=1,nFacets |
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IF ( facet_dims(2*j-1)*facet_dims(2*j).EQ.0 ) THEN |
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WRITE(W2_oUnit,'(A,I3,2(A,I8))') |
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& ' facets #', j, ' , x-size=', facet_dims(2*j-1), |
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& ' , y-size=', facet_dims(2*j) |
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CALL PRINT_MESSAGE( msgBuf, W2_oUnit,SQUEEZE_RIGHT,myThid ) |
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CALL PRINT_ERROR( msgBuf, myThid ) |
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ENDIF |
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ENDDO |
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STOP 'ABNORMAL END: S/R W2_SET_CS6_FACETS (unset facet dims)' |
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ENDIF |
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RETURN |
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END |
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