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C $Header: /u/gcmpack/MITgcm/pkg/mdsio/mdsio_writelocal.F,v 1.19 2010/08/24 14:56:24 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_FIELD |
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C !INTERFACE: |
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SUBROUTINE MDS_WRITELOCAL( |
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I fName, |
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I filePrec, |
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I globFile, |
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I arrType, |
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I nNz, |
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I fldRL, fldRS, |
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I biArg, bjArg, |
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I irecord, |
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I myIter, |
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I myThArg ) |
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|
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C !DESCRIPTION: |
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C Arguments: |
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C |
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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 (fldRL/RS) to write, either "RL" or "RS" |
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C nNz (integer) :: size of third dimension: normally either 1 or Nr |
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C fldRL ( RL ) :: array to write if arrType="RL", fldRL(:,:,nNz) |
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C fldRS ( RS ) :: array to write if arrType="RS", fldRS(:,:,nNz) |
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C biArg (integer) :: tile X-index argument |
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C bjArg (integer) :: tile Y-index argument |
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C irecord (integer) :: record number to write |
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C myIter (integer) :: time step number |
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C myThArg (integer) :: thread argument (= my Thread Id or = 0 to simply |
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C write 1 tile without thread synchronisation) |
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C |
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C MDS_WRITELOCAL write a local-tile array corresponding to tile biArg,bjArg |
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C of this Process. Threading: with myThArg=0 or when LOCBIN_IO_THREAD_SAFE |
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C is defined, go for a strait writing of this tile ; otherwise, use the |
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C shared buffer IO to store data from all threads, then synchronise and |
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C let the master thread write nThreads tiles. If multiple tiles per thread, |
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C will repeat this sequence each time this S/R is called by the master thread |
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C with a different biArg,biArg. IMPORTANT: 2nd case requires that all threads |
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C call this S/R and assumes symmetry in tiles per thread treatment. |
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C Convention regarding thread synchronisation (BARRIER): see mdsio_write_field.F |
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C MDS_WRITELOCAL creates either a file of the form "fName.data" and |
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C "fName.meta" if the logical flag "globalFile" is set true. Otherwise |
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C it creates MDS tiled files of the form "fName.xxx.yyy.data" and |
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C "fName.xxx.yyy.meta". A meta-file is always created. |
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C Currently, the meta-files are not read because it is difficult |
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C to parse files in fortran. We should read meta information before |
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C adding records to an existing multi-record file. |
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C The precision of the file is decsribed by filePrec, set either |
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C to floatPrec32 or floatPrec64. The char*(2) string arrType, either |
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C "RL" or "RS", selects which array is written, either fldRL or fldRS. |
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C nNz allows for both 2-D and 3-D arrays to be handled. nNz=1 implies |
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C a 2-D model field and nNz=Nr implies a 3-D model field. |
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C irecord is the record number to be written and must be >= 1. |
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C NOTE: It is currently assumed that the highest record number in the file |
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C was the last record written. Nor is there a consistency check between the |
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C routine arguments and file, i.e., if you write record 2 after record 4 |
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C the meta information will record the number of records to be 2. This, |
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C again, is because we have read the meta information. To be fixed. |
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C |
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C Created: 03/16/99 adcroft@mit.edu |
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C Changed: 05/31/00 heimbach@mit.edu |
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C open(dUnit, ..., status='old', ... -> status='unknown' |
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CEOP |
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|
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C !USES: |
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IMPLICIT NONE |
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C Global variables / common blocks |
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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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#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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#include "W2_EXCH2_PARAMS.h" |
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#endif /* ALLOW_EXCH2 */ |
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#ifdef ALLOW_FIZHI |
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# include "fizhi_SIZE.h" |
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#endif /* ALLOW_FIZHI */ |
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#include "MDSIO_BUFF_3D.h" |
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|
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C !INPUT PARAMETERS: |
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CHARACTER*(*) fName |
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INTEGER filePrec |
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LOGICAL globFile |
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CHARACTER*(2) arrType |
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INTEGER nNz |
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_RL fldRL(*) |
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_RS fldRS(*) |
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INTEGER biArg, bjArg |
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INTEGER irecord |
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INTEGER myIter |
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INTEGER myThArg |
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C !OUTPUT PARAMETERS: |
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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, MDS_RECLEN |
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|
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C !LOCAL VARIABLES: |
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C bBij :: base shift in Buffer index for tile bi,bj |
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CHARACTER*(MAX_LEN_FNAM) dataFName,metaFName |
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CHARACTER*(MAX_LEN_MBUF) msgBuf |
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LOGICAL fileIsOpen |
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LOGICAL globalFile |
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LOGICAL iAmDoingIO |
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INTEGER xSize, ySize |
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INTEGER iG,jG |
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INTEGER i1,i2,i,j,k |
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INTEGER irec,dUnit,IL |
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INTEGER dimList(3,3),nDims, map2gl(2) |
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INTEGER length_of_rec |
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INTEGER bBij |
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INTEGER bi, bj |
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INTEGER myThid, ith, nthLoop |
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INTEGER tNx, tNy, global_nTx |
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INTEGER tBx, tBy, iGjLoc, jGjLoc |
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#ifdef ALLOW_EXCH2 |
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INTEGER tN |
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#endif /* ALLOW_EXCH2 */ |
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_RL dummyRL(1) |
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CHARACTER*8 blank8c |
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|
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DATA dummyRL(1) / 0. _d 0 / |
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DATA blank8c / ' ' / |
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|
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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C Set dimensions: |
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xSize = Nx |
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ySize = Ny |
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#ifdef ALLOW_EXCH2 |
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IF ( W2_useE2ioLayOut ) THEN |
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xSize = exch2_global_Nx |
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ySize = exch2_global_Ny |
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ENDIF |
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#endif /* ALLOW_EXCH2 */ |
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|
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C- default: |
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iGjLoc = 0 |
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jGjLoc = 1 |
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|
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IL = ILNBLNK( fName ) |
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globalFile = globFile |
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myThid = MAX(myThArg,1) |
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#ifdef LOCBIN_IO_THREAD_SAFE |
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nthLoop = 1 |
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iAmDoingIO = .TRUE. |
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#else /* LOCBIN_IO_THREAD_SAFE */ |
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nthLoop = nThreads |
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IF ( myThArg.EQ.0 ) nthLoop = 1 |
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iAmDoingIO = .FALSE. |
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IF ( myThid.EQ.1 ) iAmDoingIO = .TRUE. |
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#endif /* LOCBIN_IO_THREAD_SAFE */ |
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|
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IF ( nThreads.GT.1 .AND. globFile ) THEN |
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C- do not assume safe Muti-Threaded Binary IO to a single global file |
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C => switch to tiled file |
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globalFile = .FALSE. |
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IF ( debugLevel.GE.debLevA .AND. IL.GT.0 ) THEN |
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WRITE(msgBuf,'(A,I10,A,2I5,A)') |
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& 'MDS_WRITELOCAL (it=', myIter, ' ; bi,bj=', biArg,bjArg, |
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& ' ): No global-file multi-threaded IO' |
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CALL PRINT_MESSAGE( msgBuf, errorMessageUnit, |
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& SQUEEZE_RIGHT , myThid ) |
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WRITE(msgBuf,'(2A)') |
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& 'MDS_WRITELOCAL: => write tiled file: ', fName(1:IL) |
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CALL PRINT_MESSAGE( msgBuf, errorMessageUnit, |
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& SQUEEZE_RIGHT , myThid ) |
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ENDIF |
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ENDIF |
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|
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C Record number must be >= 1 |
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IF (irecord .LT. 1) THEN |
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WRITE(msgBuf,'(3A,I10)') |
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& ' MDS_WRITELOCAL: file="', fName(1:IL), '" , iter=', myIter |
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CALL PRINT_MESSAGE( msgBuf, errorMessageUnit, |
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& SQUEEZE_RIGHT , myThid ) |
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WRITE(msgBuf,'(A,I9.8)') |
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& ' MDS_WRITELOCAL: argument irecord = ',irecord |
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CALL PRINT_MESSAGE( msgBuf, errorMessageUnit, |
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& SQUEEZE_RIGHT , myThid ) |
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WRITE(msgBuf,'(A)') |
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& ' MDS_WRITELOCAL: invalid value for irecord' |
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CALL PRINT_ERROR( msgBuf, myThid ) |
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STOP 'ABNORMAL END: S/R MDS_WRITELOCAL' |
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ENDIF |
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C check for 3-D Buffer size: |
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IF ( .NOT.useSingleCpuIO .AND. nNz.GT.size3dBuf ) THEN |
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WRITE(msgBuf,'(3A,I10)') |
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& ' MDS_WRITELOCAL: file="', fName(1:IL), '" , iter=', myIter |
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CALL PRINT_MESSAGE( msgBuf, errorMessageUnit, |
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& SQUEEZE_RIGHT , myThid ) |
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WRITE(msgBuf,'(3(A,I6))') |
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& ' MDS_WRITELOCAL: Nb Lev to write =', nNz, |
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& ' >', size3dBuf, ' = buffer 3rd Dim' |
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CALL PRINT_MESSAGE( msgBuf, errorMessageUnit, |
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& SQUEEZE_RIGHT , myThid ) |
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WRITE(msgBuf,'(A)') |
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& ' MDS_WRITELOCAL: buffer 3rd Dim. too small' |
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CALL PRINT_ERROR( msgBuf, myThid ) |
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WRITE(msgBuf,'(A)') |
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& ' increase "size3dBuf" in "MDSIO_BUFF_3D.h" and recompile' |
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CALL PRINT_MESSAGE( msgBuf, errorMessageUnit, |
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& SQUEEZE_RIGHT , myThid ) |
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c CALL ALL_PROC_DIE( myThid ) |
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STOP 'ABNORMAL END: S/R MDS_WRITELOCAL' |
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ENDIF |
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|
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C Wait for all thread to finish. This prevents other threads (e.g., master) |
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C to continue to acces 3-D buffer while this thread is filling it. |
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IF ( nthLoop.GT.1 ) CALL BAR2( myThid ) |
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|
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C------------------------------------------------- |
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C--- Copy from fldRL/RS to 3-D buffer (multi-threads): |
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IF ( filePrec.EQ.precFloat32 ) THEN |
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IF ( arrType.EQ.'RS' ) THEN |
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CALL MDS_PASS_R4toRS( shared3dBuf_r4, fldRS, |
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I 0, 0, nNz, 1, nNz, biArg, bjArg, .FALSE., myThid ) |
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ELSEIF ( arrType.EQ.'RL' ) THEN |
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CALL MDS_PASS_R4toRL( shared3dBuf_r4, fldRL, |
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I 0, 0, nNz, 1, nNz, biArg, bjArg, .FALSE., myThid ) |
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ELSE |
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WRITE(msgBuf,'(A)') |
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& ' MDS_WRITELOCAL: illegal value for arrType' |
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CALL PRINT_ERROR( msgBuf, myThid ) |
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STOP 'ABNORMAL END: S/R MDS_WRITELOCAL' |
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ENDIF |
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ELSEIF ( filePrec.EQ.precFloat64 ) THEN |
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IF ( arrType.EQ.'RS' ) THEN |
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CALL MDS_PASS_R8toRS( shared3dBuf_r8, fldRS, |
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I 0, 0, nNz, 1, nNz, biArg, bjArg, .FALSE., myThid ) |
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ELSEIF ( arrType.EQ.'RL' ) THEN |
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CALL MDS_PASS_R8toRL( shared3dBuf_r8, fldRL, |
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I 0, 0, nNz, 1, nNz, biArg, bjArg, .FALSE., myThid ) |
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ELSE |
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WRITE(msgBuf,'(A)') |
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& ' MDS_WRITELOCAL: illegal value for arrType' |
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CALL PRINT_ERROR( msgBuf, myThid ) |
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STOP 'ABNORMAL END: S/R MDS_WRITELOCAL' |
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ENDIF |
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ELSE |
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WRITE(msgBuf,'(A)') |
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& ' MDS_WRITELOCAL: illegal value for filePrec' |
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CALL PRINT_ERROR( msgBuf, myThid ) |
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STOP 'ABNORMAL END: S/R MDS_WRITELOCAL' |
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ENDIF |
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C------------------------------------------------- |
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|
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C Wait for all threads to finish filling shared buffer |
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IF ( nthLoop.GT.1 ) CALL BAR2( myThid ) |
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|
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C Only do I/O if I am the master thread |
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IF ( iAmDoingIO ) THEN |
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|
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C Assume nothing |
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fileIsOpen=.FALSE. |
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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 we are writing to a global file then we open it here |
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IF (globalFile) THEN |
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WRITE(dataFName,'(2A)') fName(1:IL),'.data' |
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length_of_rec = MDS_RECLEN( filePrec, sNx, myThid ) |
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IF (irecord .EQ. 1) THEN |
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OPEN( dUnit, file=dataFName, status='unknown', |
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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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fileIsOpen=.TRUE. |
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ENDIF |
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|
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C Loop over tiles |
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DO ith=1,nthLoop |
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bi = biArg + myBxLo(ith) - 1 |
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bj = bjArg + myByLo(ith) - 1 |
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|
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bBij = sNx*sNy*nNz*( bi-1 + (bj-1)*nSx ) |
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i1 = bBij + 1 |
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#ifdef _BYTESWAPIO |
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IF ( filePrec.EQ.precFloat32 ) THEN |
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CALL MDS_BYTESWAPR4( sNx*sNy*nNz, shared3dBuf_r4(i1) ) |
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ELSE |
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CALL MDS_BYTESWAPR8( sNx*sNy*nNz, shared3dBuf_r8(i1) ) |
| 293 |
ENDIF |
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#endif |
| 295 |
|
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tNx = sNx |
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tNy = sNy |
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global_nTx = xSize/sNx |
| 299 |
tBx = myXGlobalLo-1 + (bi-1)*sNx |
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tBy = myYGlobalLo-1 + (bj-1)*sNy |
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#ifdef ALLOW_EXCH2 |
| 302 |
IF ( W2_useE2ioLayOut ) THEN |
| 303 |
tN = W2_myTileList(bi,bj) |
| 304 |
c global_nTx = exch2_global_Nx/sNx |
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tBx = exch2_txGlobalo(tN) - 1 |
| 306 |
tBy = exch2_tyGlobalo(tN) - 1 |
| 307 |
IF ( exch2_mydNx(tN) .GT. xSize ) THEN |
| 308 |
C- face x-size larger than glob-size : fold it |
| 309 |
iGjLoc = 0 |
| 310 |
jGjLoc = exch2_mydNx(tN) / xSize |
| 311 |
ELSEIF ( exch2_tNy(tN) .GT. ySize ) THEN |
| 312 |
C- tile y-size larger than glob-size : make a long line |
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iGjLoc = exch2_mydNx(tN) |
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jGjLoc = 0 |
| 315 |
ELSE |
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C- default (face fit into global-IO-array) |
| 317 |
iGjLoc = 0 |
| 318 |
jGjLoc = 1 |
| 319 |
ENDIF |
| 320 |
ENDIF |
| 321 |
#endif /* ALLOW_EXCH2 */ |
| 322 |
|
| 323 |
IF (globalFile) THEN |
| 324 |
C--- Case of 1 Global file: |
| 325 |
|
| 326 |
DO k=1,nNz |
| 327 |
DO j=1,sNy |
| 328 |
C- compute record number: |
| 329 |
irec = 1 + ( tBx + (j-1)*iGjLoc )/tNx |
| 330 |
& + ( tBy + (j-1)*jGjLoc )*global_nTx |
| 331 |
& + ( k-1 + (irecord-1)*nNz )*global_nTx*ySize |
| 332 |
i1 = bBij + 1 + (j-1)*sNx + (k-1)*sNx*sNy |
| 333 |
i2 = bBij + j*sNx + (k-1)*sNx*sNy |
| 334 |
IF ( filePrec.EQ.precFloat32 ) THEN |
| 335 |
WRITE(dUnit,rec=irec) (shared3dBuf_r4(i),i=i1,i2) |
| 336 |
ELSE |
| 337 |
WRITE(dUnit,rec=irec) (shared3dBuf_r8(i),i=i1,i2) |
| 338 |
ENDIF |
| 339 |
C End of j,k loops |
| 340 |
ENDDO |
| 341 |
ENDDO |
| 342 |
|
| 343 |
ELSE |
| 344 |
C--- Case of 1 file per tile (globalFile=F): |
| 345 |
|
| 346 |
C If we are writing to a tiled MDS file then we open each one here |
| 347 |
iG=bi+(myXGlobalLo-1)/sNx |
| 348 |
jG=bj+(myYGlobalLo-1)/sNy |
| 349 |
WRITE(dataFName,'(2A,I3.3,A,I3.3,A)') |
| 350 |
& fName(1:IL),'.',iG,'.',jG,'.data' |
| 351 |
length_of_rec = MDS_RECLEN( filePrec, sNx*sNy*nNz, myThid ) |
| 352 |
IF (irecord .EQ. 1) THEN |
| 353 |
OPEN( dUnit, file=dataFName, status=_NEW_STATUS, |
| 354 |
& access='direct', recl=length_of_rec ) |
| 355 |
ELSE |
| 356 |
OPEN( dUnit, file=dataFName, status=_OLD_STATUS, |
| 357 |
& access='direct', recl=length_of_rec ) |
| 358 |
ENDIF |
| 359 |
fileIsOpen=.TRUE. |
| 360 |
|
| 361 |
irec = irecord |
| 362 |
i1 = bBij + 1 |
| 363 |
i2 = bBij + sNx*sNy*nNz |
| 364 |
IF ( filePrec.EQ.precFloat32 ) THEN |
| 365 |
WRITE(dUnit,rec=irec) (shared3dBuf_r4(i),i=i1,i2) |
| 366 |
ELSE |
| 367 |
WRITE(dUnit,rec=irec) (shared3dBuf_r8(i),i=i1,i2) |
| 368 |
ENDIF |
| 369 |
|
| 370 |
C If we were writing to a tiled MDS file then we close it here |
| 371 |
IF ( fileIsOpen ) THEN |
| 372 |
CLOSE( dUnit ) |
| 373 |
fileIsOpen = .FALSE. |
| 374 |
ENDIF |
| 375 |
|
| 376 |
C--- End Global File / tile-file cases |
| 377 |
ENDIF |
| 378 |
|
| 379 |
C Create meta-file for each tile if we are tiling |
| 380 |
IF ( .NOT.globalFile ) THEN |
| 381 |
iG=bi+(myXGlobalLo-1)/sNx |
| 382 |
jG=bj+(myYGlobalLo-1)/sNy |
| 383 |
WRITE(metaFname,'(2A,I3.3,A,I3.3,A)') |
| 384 |
& fName(1:IL),'.',iG,'.',jG,'.meta' |
| 385 |
dimList(1,1) = xSize |
| 386 |
dimList(2,1) = tBx + 1 |
| 387 |
dimList(3,1) = tBx + tNx |
| 388 |
dimList(1,2) = ySize |
| 389 |
dimList(2,2) = tBy + 1 |
| 390 |
dimList(3,2) = tBy + tNy |
| 391 |
dimList(1,3) = Nr |
| 392 |
dimList(2,3) = 1 |
| 393 |
dimList(3,3) = Nr |
| 394 |
nDims = 3 |
| 395 |
IF ( nNz.EQ.1 ) nDims = 2 |
| 396 |
map2gl(1) = iGjLoc |
| 397 |
map2gl(2) = jGjLoc |
| 398 |
CALL MDS_WRITE_META( |
| 399 |
I metaFName, dataFName, the_run_name, ' ', |
| 400 |
I filePrec, nDims, dimList, map2gl, 0, blank8c, |
| 401 |
I 0, dummyRL, irecord, myIter, myThid ) |
| 402 |
ENDIF |
| 403 |
|
| 404 |
C End of ith loop |
| 405 |
ENDDO |
| 406 |
|
| 407 |
C If global file was opened then close it |
| 408 |
IF (fileIsOpen .AND. globalFile) THEN |
| 409 |
CLOSE( dUnit ) |
| 410 |
fileIsOpen = .FALSE. |
| 411 |
ENDIF |
| 412 |
|
| 413 |
C Create meta-file for the global-file |
| 414 |
IF (globalFile) THEN |
| 415 |
WRITE(metaFName,'(2A)') fName(1:IL),'.meta' |
| 416 |
dimList(1,1) = xSize |
| 417 |
dimList(2,1) = 1 |
| 418 |
dimList(3,1) = xSize |
| 419 |
dimList(1,2) = ySize |
| 420 |
dimList(2,2) = 1 |
| 421 |
dimList(3,2) = ySize |
| 422 |
dimList(1,3) = Nr |
| 423 |
dimList(2,3) = 1 |
| 424 |
dimList(3,3) = Nr |
| 425 |
nDims = 3 |
| 426 |
IF ( nNz.EQ.1 ) nDims = 2 |
| 427 |
map2gl(1) = 0 |
| 428 |
map2gl(2) = 1 |
| 429 |
CALL MDS_WRITE_META( |
| 430 |
I metaFName, dataFName, the_run_name, ' ', |
| 431 |
I filePrec, nDims, dimList, map2gl, 0, blank8c, |
| 432 |
I 0, dummyRL, irecord, myIter, myThid ) |
| 433 |
ENDIF |
| 434 |
|
| 435 |
C- end if iAmDoingIO |
| 436 |
ENDIF |
| 437 |
|
| 438 |
C Make other threads wait for I/O completion so that after this, |
| 439 |
C 3-D buffer can again be modified by any thread |
| 440 |
c IF ( nthLoop.GT.1 ) CALL BAR2( myThid ) |
| 441 |
|
| 442 |
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
| 443 |
RETURN |
| 444 |
END |
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