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C $Header: /u/gcmpack/MITgcm/pkg/mdsio/mdsio_writevector.F,v 1.15 2013/01/13 22:43:53 jmc Exp $ |
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C $Name: $ |
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|
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#include "MDSIO_OPTIONS.h" |
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|
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CBOP |
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C !ROUTINE: MDS_WRITE_TAPE |
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C !INTERFACE: |
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SUBROUTINE MDS_WRITE_TAPE( |
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I fName, |
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I filePrec, |
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I globalfile, |
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I arrType, |
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I nSize, |
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I fldR8, fldR4, |
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I singleCpuIO, |
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I iRec, |
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I myIter, |
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I myThid ) |
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|
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C !DESCRIPTION: |
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C MDS_WRITE_TAPE: write an array (treated as vector) to a tape-file |
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C (renamed from MDSWRITEVECTOR with 2 explicit input array types) |
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C |
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C Arguments: |
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C fName string :: base name for file to write |
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C filePrec integer :: number of bits per word in file (32 or 64) |
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C globalFile logical :: selects between writing a global or tiled file |
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C arrType char(2) :: which array (fldR8/R4) to write, either "R8" or "R4" |
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C nSize integer :: number of elements of input array "fldR8/R4" to write |
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C fldR8 ( R8 ) :: array to write if arrType="R8", fldR8(nSize) |
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C fldR4 ( R4 ) :: array to write if arrType="R4", fldR4(nSize) |
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C bi,bj integer :: tile indices (if tiled array) |
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C singleCpuIO ( L ) :: only proc 0 do IO and collect data from other procs |
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C iRec integer :: record number to write |
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C myIter integer :: time step number |
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C myThid integer :: my Thread Id number |
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|
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C !USES: |
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IMPLICIT NONE |
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|
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C-- Global variables -- |
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#include "SIZE.h" |
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#include "EEPARAMS.h" |
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#include "PARAMS.h" |
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|
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C !INPUT/OUTPUT PARAMETERS: |
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CHARACTER*(*) fName |
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INTEGER filePrec |
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LOGICAL globalfile |
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CHARACTER*(2) arrType |
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INTEGER nSize |
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_R8 fldR8(*) |
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_R4 fldR4(*) |
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LOGICAL singleCpuIO |
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INTEGER iRec |
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INTEGER myIter |
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INTEGER myThid |
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|
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#ifdef ALLOW_AUTODIFF |
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|
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C !FUNCTIONS: |
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INTEGER ILNBLNK |
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INTEGER MDS_RECLEN |
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EXTERNAL ILNBLNK |
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EXTERNAL MDS_RECLEN |
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|
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C !LOCAL VARIABLES: |
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CHARACTER*(MAX_LEN_FNAM) dataFName, metaFName, pfName |
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INTEGER iG, jG, jRec, dUnit, IL, pIL |
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INTEGER dimList(3,1), nDims, map2gl(2) |
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INTEGER length_of_rec |
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CHARACTER*(MAX_LEN_MBUF) msgBuf |
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|
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C simple implementation of singleCpuIO without any specific EXCH2 |
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C feature (should work as long as reading and writing match) |
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INTEGER j |
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INTEGER vec_size |
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C Note: would be better to use explicit (allocate/delocate) dynamical |
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C allocation instead of this implicit form: |
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_R8 gl_buffer_r8(nSize*nPx*nPy) |
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_R4 gl_buffer_r4(nSize*nPx*nPy) |
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_R8 local_r8 (nSize) |
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_R4 local_r4 (nSize) |
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_RL dummyRL(1) |
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CHARACTER*8 blank8c |
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CEOP |
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|
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DATA dummyRL(1) / 0. _d 0 / |
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DATA blank8c / ' ' / |
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DATA map2gl / 0, 1 / |
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|
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vec_size = nSize*nPx*nPy |
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|
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C-- Copy input array to local buffer |
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IF ( arrType.EQ.'R4' ) THEN |
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IF ( filePrec.EQ.precFloat32 ) THEN |
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DO j=1,nSize |
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local_r4(j) = fldR4(j) |
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ENDDO |
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ELSE |
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DO j=1,nSize |
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local_r8(j) = fldR4(j) |
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ENDDO |
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ENDIF |
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ELSEIF ( arrType.EQ.'R8' ) THEN |
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IF ( filePrec.EQ.precFloat32 ) THEN |
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DO j=1,nSize |
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local_r4(j) = fldR8(j) |
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ENDDO |
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ELSE |
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DO j=1,nSize |
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local_r8(j) = fldR8(j) |
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ENDDO |
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ENDIF |
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ELSE |
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WRITE(msgBuf,'(A)') |
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& ' MDS_WRITE_TAPE: illegal value for arrType' |
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CALL PRINT_ERROR( msgBuf, myThid ) |
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STOP 'ABNORMAL END: S/R MDS_WRITE_TAPE' |
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ENDIF |
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|
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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|
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C-- Only do I/O if I am the master thread |
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_BEGIN_MASTER( myThid ) |
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|
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C- Record number must be >= 1 |
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IF ( iRec.LT.1 ) THEN |
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WRITE(msgBuf,'(A,I10)') |
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& ' MDS_WRITE_TAPE: argument iRec =',iRec |
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CALL PRINT_ERROR( msgBuf, myThid ) |
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WRITE(msgBuf,'(A)') |
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& ' MDS_WRITE_TAPE: invalid value for iRec' |
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CALL PRINT_ERROR( msgBuf, myThid ) |
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STOP 'ABNORMAL END: S/R MDS_WRITE_TAPE' |
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ENDIF |
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|
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C- Assume nothing |
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IL = ILNBLNK( fName ) |
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pIL = ILNBLNK( mdsioLocalDir ) |
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|
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C- Assign special directory |
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IF ( pIL.EQ.0 ) THEN |
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pfName = fName |
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ELSE |
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WRITE(pfName,'(2A)') mdsioLocalDir(1:pIL), fName(1:IL) |
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ENDIF |
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pIL = ILNBLNK( pfName ) |
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IF ( debugLevel.GE.debLevC .AND. |
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& ( .NOT.singleCpuIO .OR. myProcId.EQ.0 ) ) THEN |
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WRITE(msgBuf,'(A,I8,2A)') |
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& ' MDS_WRITE_TAPE: iRec=', iRec, ', file=', pfName(1:pIL) |
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CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
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& SQUEEZE_RIGHT, myThid ) |
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ENDIF |
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|
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C- Assign a free unit number as the I/O channel for this routine |
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CALL MDSFINDUNIT( dUnit, myThid ) |
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|
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C If option globalFile is desired but does not work or if |
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C globalFile is too slow, then try using single-CPU I/O. |
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IF ( singleCpuIO ) THEN |
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|
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C- Gather array from all procs |
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IF ( filePrec.EQ.precFloat32 ) THEN |
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CALL GATHER_VEC_R4( gl_buffer_r4, local_r4, nSize, myThid ) |
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ELSEIF ( filePrec.EQ.precFloat64 ) THEN |
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CALL GATHER_VEC_R8( gl_buffer_r8, local_r8, nSize, myThid ) |
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ELSE |
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WRITE(msgBuf,'(A)') |
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& ' MDS_WRITE_TAPE: illegal value for filePrec' |
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CALL PRINT_ERROR( msgBuf, myThid ) |
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STOP 'ABNORMAL END: S/R MDS_WRITE_TAPE' |
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ENDIF |
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|
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IF ( myProcId .EQ. 0 ) THEN |
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C-- Master thread of process 0, only, opens a global file |
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|
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WRITE(dataFName,'(2a)') fName(1:IL),'.data' |
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length_of_rec = MDS_RECLEN( filePrec, vec_size, myThid ) |
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IF (iRec .EQ. 1) THEN |
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OPEN( dUnit, file=dataFName, status=_NEW_STATUS, |
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& access='direct', recl=length_of_rec ) |
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ELSE |
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OPEN( dUnit, file=dataFName, status=_OLD_STATUS, |
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& access='direct', recl=length_of_rec ) |
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ENDIF |
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|
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C- Write global buffer to file: |
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IF ( filePrec.EQ.precFloat32 ) THEN |
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#ifdef _BYTESWAPIO |
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CALL MDS_BYTESWAPR4( vec_size, gl_buffer_r4 ) |
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#endif |
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WRITE(dUnit,rec=iRec) gl_buffer_r4 |
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ELSEIF ( filePrec.EQ.precFloat64 ) THEN |
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#ifdef _BYTESWAPIO |
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CALL MDS_BYTESWAPR8( vec_size, gl_buffer_r8 ) |
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#endif |
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WRITE(dUnit,rec=iRec) gl_buffer_r8 |
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ENDIF |
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|
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C- Close data-file and create meta-file |
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CLOSE( dUnit ) |
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WRITE(metaFName,'(2a)') fName(1:IL),'.meta' |
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dimList(1,1) = vec_size |
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dimList(2,1) = 1 |
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dimList(3,1) = vec_size |
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nDims = 1 |
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CALL MDS_WRITE_META( |
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I metaFName, dataFName, the_run_name, ' ', |
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I filePrec, nDims, dimList, map2gl, 0, blank8c, |
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I 0, dummyRL, oneRL, iRec, myIter, myThid ) |
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|
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C- end if myProcId=0 |
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ENDIF |
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|
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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C if ( singleCpuIO ), else |
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ELSEIF ( .NOT. singleCpuIO ) THEN |
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|
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IF ( globalFile ) THEN |
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C- If we are writing to a global file then we open it here |
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WRITE(dataFName,'(2A)') fName(1:IL),'.data' |
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length_of_rec = MDS_RECLEN( filePrec, nSize, myThid ) |
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IF ( iRec.EQ.1 ) THEN |
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OPEN( dUnit, file=dataFName, status=_NEW_STATUS, |
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& access='direct', recl=length_of_rec ) |
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ELSE |
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OPEN( dUnit, file=dataFName, status=_OLD_STATUS, |
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& access='direct', recl=length_of_rec ) |
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ENDIF |
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|
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ELSE |
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C- If we are writing to a tiled MDS file then we open each one here |
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iG = 1 + (myXGlobalLo-1)/sNx |
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jG = 1 + (myYGlobalLo-1)/sNy |
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WRITE(dataFName,'(2A,I3.3,A,I3.3,A)') |
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& pfName(1:pIL),'.',iG,'.',jG,'.data' |
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length_of_rec = MDS_RECLEN( filePrec, nSize, myThid ) |
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IF (iRec .EQ. 1) THEN |
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OPEN( dUnit, file=dataFName, status=_NEW_STATUS, |
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& access='direct', recl=length_of_rec ) |
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ELSE |
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OPEN( dUnit, file=dataFName, status=_OLD_STATUS, |
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& access='direct', recl=length_of_rec ) |
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ENDIF |
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ENDIF |
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|
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C- Write local buffer to file: |
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IF (globalFile) THEN |
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C-- Original: nPy=2, nSx=2 -> produces too large file (1.5 x normal size) |
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c iG = myXGlobalLo-1+(bi-1)*sNx |
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c jG = myYGlobalLo-1+(bj-1)*sNy |
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c jRec = 1 + int(iG/sNx) + (jG/sNy)*nSx*nPx + |
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c & (iRec-1)*nSx*nPx*nSy*nPy |
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C-- Alternative: same layout as in scatter/gather_vector (for singleCpuIO) |
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C problem: nPx=2, nSx=2, writing a global (i.e., with bi,bj dim); |
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C- 2nd proc get iG=3 -> badly placed data over nPx*nPy*nSize range |
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C that will be overwritten by next record |
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c iG = 1 + (myXGlobalLo-1)/sNx |
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c jG = 1 + (myYGlobalLo-1)/sNy |
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c jRec = iG + (jG-1)*nPx + (iRec-1)*nPx*nPy |
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C-- Simpler: should work (but hard to interpret the sequence of data in file) |
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jRec = 1 + myProcId + (iRec-1)*nPx*nPy |
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ELSE |
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jRec = iRec |
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ENDIF |
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IF ( filePrec.EQ.precFloat32 ) THEN |
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#ifdef _BYTESWAPIO |
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CALL MDS_BYTESWAPR4( nSize, local_r4 ) |
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#endif |
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WRITE(dUnit,rec=jRec) local_r4 |
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ELSEIF ( filePrec.EQ.precFloat64 ) THEN |
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#ifdef _BYTESWAPIO |
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CALL MDS_BYTESWAPR8( nSize, local_r8 ) |
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#endif |
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WRITE(dUnit,rec=jRec) local_r8 |
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ELSE |
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WRITE(msgBuf,'(A)') |
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& ' MDS_WRITE_TAPE: illegal value for filePrec' |
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CALL PRINT_ERROR( msgBuf, myThid ) |
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STOP 'ABNORMAL END: S/R MDS_WRITE_TAPE' |
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ENDIF |
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|
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C- Close data-file and create meta-file |
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CLOSE( dUnit ) |
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IF ( globalFile ) THEN |
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C meta-file for global file |
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WRITE(metaFName,'(2A)') fName(1:IL),'.meta' |
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dimList(1,1) = vec_size |
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dimList(2,1) = 1 |
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dimList(3,1) = vec_size |
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nDims = 1 |
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ELSE |
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C meta-file for tiled file |
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iG = 1 + (myXGlobalLo-1)/sNx |
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jG = 1 + (myYGlobalLo-1)/sNy |
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WRITE(metaFName,'(2A,I3.3,A,I3.3,A)') |
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& pfName(1:pIL),'.',iG,'.',jG,'.meta' |
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dimList(1,1) = nPx*nPy*nSize |
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dimList(2,1) = 1 + myProcId*nSize |
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dimList(3,1) = (1+myProcId)*nSize |
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nDims = 1 |
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ENDIF |
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C- write meta-file |
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CALL MDS_WRITE_META( |
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I metaFName, dataFName, the_run_name, ' ', |
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I filePrec, nDims, dimList, map2gl, 0, blank8c, |
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I 0, dummyRL, oneRL, iRec, myIter, myThid ) |
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c I metaFName, dataFName, the_run_name, titleLine, |
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c I filePrec, nDims, dimList, map2gl, nFlds, fldList, |
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c I nTimRec, timList, misVal, iRec, myIter, myThid ) |
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|
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C end-if ( .not. singleCpuIO ) |
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ENDIF |
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|
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_END_MASTER( myThid ) |
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|
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#else /* ALLOW_AUTODIFF */ |
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STOP 'ABNORMAL END: S/R MDS_WRITE_TAPE is empty' |
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#endif /* ALLOW_AUTODIFF */ |
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|
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RETURN |
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END |
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