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C $Header: /u/gcmpack/MITgcm/model/src/ini_model_io.F,v 1.28 2009/05/11 02:29:32 jmc Exp $ |
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C $Name: $ |
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#include "PACKAGES_CONFIG.h" |
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#include "CPP_OPTIONS.h" |
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|
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CBOP |
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C !ROUTINE: INI_MODEL_IO |
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|
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C !INTERFACE: |
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SUBROUTINE INI_MODEL_IO( myThid ) |
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|
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C !DESCRIPTION: |
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C Pass specific setup data for mdsio/rw. |
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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 "PARAMS.h" |
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#include "RESTART.h" |
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#ifdef ALLOW_EXCH2 |
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# include "W2_EXCH2_SIZE.h" |
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# include "W2_EXCH2_TOPOLOGY.h" |
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#endif /* ALLOW_EXCH2 */ |
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#ifdef ALLOW_MDSIO |
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# include "MDSIO_SCPU.h" |
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#endif /* ALLOW_MDSIO */ |
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|
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C !INPUT/OUTPUT PARAMETERS: |
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C myThid :: my Thread Id number |
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INTEGER myThid |
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|
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C !FUNCTIONS |
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INTEGER ILNBLNK |
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EXTERNAL ILNBLNK |
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|
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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*(MAX_LEN_FNAM) namBuf |
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INTEGER iL, pIL |
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#ifdef ALLOW_EXCH2 |
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INTEGER xySize |
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#endif /* ALLOW_EXCH2 */ |
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#ifdef ALLOW_USE_MPI |
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INTEGER iG,jG,np |
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#endif /* ALLOW_USE_MPI */ |
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#ifdef ALLOW_MDSIO |
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INTEGER i |
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#endif /* ALLOW_MDSIO */ |
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CEOP |
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|
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C- Safety check: |
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IF ( nPx*nPy.NE.1 .AND. globalFiles ) THEN |
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_BEGIN_MASTER( myThid ) |
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c WRITE(msgBuf,'(2A)') |
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c & 'INI_MODEL_IO: globalFiles=TRUE is not safe', |
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c & ' in Multi-processors (MPI) run' |
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c CALL PRINT_ERROR( msgBuf , myThid) |
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c WRITE(msgBuf,'(2A)') |
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c & 'INI_MODEL_IO: use instead "useSingleCpuIO=.TRUE."' |
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c CALL PRINT_ERROR( msgBuf , myThid) |
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c STOP 'ABNORMAL END: S/R INI_MODEL_IO' |
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C------ |
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C GlobalFiles option with Multi-processors execution (with MPI) is not |
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C safe: dependending on the platform & compiler, it may produce: |
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C - incomplete output files (wrong size) |
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C - wrong isolated values in some output files |
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C - missing tiles (all zeros) in some output files. |
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C A safe alternative is to set "useSingleCpuIO=.TRUE." in file "data", |
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C namelist PARAM01 (and to keep the default value of globalFiles=FALSE) |
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C or if you are really sure that the globalFile works well on our platform |
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C & compiler, comment out the above "stop" |
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C----- |
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WRITE(msgBuf,'(2A)') |
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& '** WARNING ** INI_MODEL_IO: globalFiles=TRUE is not safe', |
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& ' in Multi-processors (MPI) run' |
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CALL PRINT_MESSAGE( msgBuf, errorMessageUnit, |
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& SQUEEZE_RIGHT , myThid) |
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WRITE(msgBuf,'(2A)') '** WARNING ** INI_MODEL_IO:', |
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& ' use instead "useSingleCpuIO=.TRUE."' |
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CALL PRINT_MESSAGE( msgBuf, errorMessageUnit, |
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& SQUEEZE_RIGHT , myThid) |
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_END_MASTER( myThid ) |
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ENDIF |
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|
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C- Check size of IO buffers: |
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IF ( useSingleCpuIO ) THEN |
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c xySize = Nx*Ny |
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#if defined(ALLOW_EXCH2) && !defined(MISSING_TILE_IO) |
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xySize = exch2_global_Nx*exch2_global_Ny |
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IF ( xySize.GT.W2_ioBufferSize ) THEN |
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WRITE(msgBuf,'(A,I10)') |
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& 'INI_MODEL_IO: W2_ioBufferSize=',W2_ioBufferSize |
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CALL PRINT_ERROR( msgBuf, myThid ) |
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WRITE(msgBuf,'(A,I10,A)') |
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& ' <', xySize,' = Size of Global 2-D map' |
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CALL PRINT_ERROR( msgBuf, myThid ) |
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WRITE(msgBuf,'(2A)') ' Must increase "W2_ioBufferSize"', |
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& ' in "W2_EXCH2_SIZE.h" + recompile' |
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CALL PRINT_ERROR( msgBuf, myThid ) |
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STOP 'ABNORMAL END: S/R INI_MODEL_IO (buffer size)' |
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ENDIF |
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#else /* defined(ALLOW_EXCH2) && !defined(MISSING_TILE_IO) */ |
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#ifdef ALLOW_USE_MPI |
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C- Although using mpi_myX,YGlobalLo is more general, if they happen |
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C to be different from iG,jG then mapping into global 2D array is |
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C very likely to go wrong ; check and stop. |
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DO np = 1,nPx*nPy |
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iG = MOD(np-1,nPx) |
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jG = (np-1)/nPx |
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iG = 1+iG*nSx*sNx |
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jG = 1+jG*nSy*sNy |
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IF ( mpi_myXGlobalLo(np).NE.iG ) THEN |
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WRITE(msgBuf,'(2A,I4,A,I8,A,I8,A)') 'INI_MODEL_IO: ', |
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& 'myXGlobalLo(np=',np,')=', mpi_myXGlobalLo(np), |
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& ' <>',iG,' =iGLo' |
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CALL PRINT_ERROR( msgBuf, myThid ) |
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ENDIF |
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IF ( mpi_myYGlobalLo(np).NE.jG ) THEN |
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WRITE(msgBuf,'(2A,I4,A,I8,A,I8,A)') 'INI_MODEL_IO: ', |
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& 'myYGlobalLo(np=',np,')=', mpi_myYGlobalLo(np), |
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& ' <>',jG,' =jGLo' |
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CALL PRINT_ERROR( msgBuf, myThid ) |
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ENDIF |
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IF ( mpi_myXGlobalLo(np).NE.iG .OR. |
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& mpi_myYGlobalLo(np).NE.jG ) THEN |
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STOP 'ABNORMAL END: S/R INI_MODEL_IO wrong iGLo,jGLo' |
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ENDIF |
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ENDDO |
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#endif /* ALLOW_USE_MPI */ |
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#endif /* defined(ALLOW_EXCH2) && !defined(MISSING_TILE_IO) */ |
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ENDIF |
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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|
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C- Only Master-thread updates IO-parameter in Common blocks: |
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_BEGIN_MASTER( myThid ) |
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|
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C- Initialise AB starting level |
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C notes: those could be modified when reading a pickup that does |
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C correspond to what is actually needed. |
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tempStartAB = nIter0 |
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saltStartAB = nIter0 |
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mom_StartAB = nIter0 |
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nHydStartAB = nIter0 |
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IF ( startFromPickupAB2 ) tempStartAB = MIN( nIter0 , 1 ) |
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saltStartAB = tempStartAB |
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mom_StartAB = tempStartAB |
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|
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C- Initialise Alternating pickup-suffix |
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nCheckLev = 1 |
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checkPtSuff(1) = 'ckptA' |
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checkPtSuff(2) = 'ckptB' |
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|
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C- Flags specific to RW and MDSIO |
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|
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C- now we make local directories with myProcessStr appended |
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IF ( mdsioLocalDir .NE. ' ' ) THEN |
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iL = ILNBLNK( mdsioLocalDir ) |
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WRITE(namBuf,'(3A)') |
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& ' mkdir -p ', mdsioLocalDir(1:iL),myProcessStr(1:4) |
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pIL = 1 + ILNBLNK( namBuf ) |
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WRITE(standardMessageUnit,'(3A)') |
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& '==> SYSTEM CALL (from INI_MODEL_IO): >',namBuf(1:pIL),'<' |
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CALL SYSTEM( namBuf(1:pIL) ) |
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namBuf(1:iL) = mdsioLocalDir(1:iL) |
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WRITE(mdsioLocalDir,'(3A)') namBuf(1:iL),myProcessStr(1:4),'/' |
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ENDIF |
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|
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C- Initialise MFLDS variables in common block |
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CALL READ_MFLDS_INIT( myThid ) |
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|
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C Set globalFiles flag for READ_WRITE_FLD package |
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CALL SET_WRITE_GLOBAL_FLD( globalFiles ) |
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C Set globalFiles flag for READ_WRITE_REC package |
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CALL SET_WRITE_GLOBAL_REC( globalFiles ) |
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C Set globalFiles flag for READ_WRITE_PICKUP |
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CALL SET_WRITE_GLOBAL_PICKUP( globalFiles ) |
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|
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_END_MASTER( myThid ) |
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C- Everyone else must wait for the IO-parameters to be set |
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_BARRIER |
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|
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C- MDSIO IO-buffers initialisation |
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#ifdef ALLOW_MDSIO |
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IF ( useSingleCpuIO ) THEN |
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_BEGIN_MASTER( myThid ) |
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DO i=1,xyBuffer_size |
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xy_buffer_r8(i) = 0. _d 0 |
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xy_buffer_r4(i) = 0. |
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ENDDO |
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_END_MASTER( myThid ) |
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ENDIF |
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#endif /* ALLOW_MDSIO */ |
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|
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C- MNC model-io initialisation |
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|
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#ifdef ALLOW_MNC |
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IF (useMNC) THEN |
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|
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C Write units/set precision/etc for I/O of variables/arrays |
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C belonging to the core dynamical model |
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CALL INI_MNC_VARS( myThid ) |
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|
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#ifdef ALLOW_AUTODIFF |
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CALL AUTODIFF_INI_MODEL_IO( myThid ) |
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#endif |
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|
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ENDIF |
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#endif /* ALLOW_MNC */ |
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|
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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|
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RETURN |
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END |
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