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C $Header: /u/gcmpack/MITgcm_contrib/llc_hires/llc_90/code-async-noseaice/mdsio_read_field.F,v 1.1 2017/10/09 02:02:49 dimitri 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_READ_FIELD |
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C !INTERFACE: |
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SUBROUTINE MDS_READ_FIELD( |
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I fName, |
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I filePrec, |
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I useCurrentDir, |
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I arrType, |
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I kSize,kLo,kHi, |
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O fldRL, fldRS, |
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I irecord, |
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I myThid ) |
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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 read |
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C filePrec (integer) :: number of bits per word in file (32 or 64) |
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C useCurrentDir(logic):: always read from the current directory (even if |
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C "mdsioLocalDir" is set) |
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C arrType (char(2)) :: which array (fldRL/RS) to read into, either "RL" or "RS" |
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C kSize (integer) :: size of third dimension: normally either 1 or Nr |
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C kLo (integer) :: 1rst vertical level (of array fldRL/RS) to read-in |
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C kHi (integer) :: last vertical level (of array fldRL/RS) to read-in |
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C fldRL ( RL ) :: array to read into if arrType="RL", fldRL(:,:,kSize,:,:) |
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C fldRS ( RS ) :: array to read into if arrType="RS", fldRS(:,:,kSize,:,:) |
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C irecord (integer) :: record number to read |
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C myIter (integer) :: time step number |
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C myThid (integer) :: thread identifier |
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C |
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C MDS_READ_FIELD first checks to see IF the file "fName" exists, then |
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C IF the file "fName.data" exists and finally the tiled files of the |
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C form "fName.xxx.yyy.data" exist. Currently, the meta-files are not |
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C read because it is difficult to parse files in fortran. |
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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 "RL" |
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C or "RS", selects which array is filled in, either fldRL or fldRS. |
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C (kSize,kLo,kHi) allows for both 2-D and 3-D arrays to be handled, with |
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C the option to only read and fill-in a sub-set of consecutive vertical |
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C levels (from kLo to kHi) ; (kSize,kLo,kHi)=(1,1,1) implies a 2-D model |
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C field and (kSize,kLo,kHi)=(Nr,1,Nr) implies a 3-D model field. |
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C irecord is the record number to be read and must be >= 1. |
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C The file data is stored in fldRL/RS *but* the overlaps are *not* updated, |
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C i.e., an exchange must be called. |
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C |
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C- Multi-threaded: Only Master thread does IO (and MPI calls) and put data |
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C to a shared buffer that any thread can get access to. |
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C- Convention regarding thread synchronisation (BARRIER): |
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C A per-thread (or per tile) partition of the 2-D shared-buffer (sharedLocBuf_r4/r8) |
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C is readily available => any access (e.g., by master-thread) to a portion |
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C owned by an other thread is put between BARRIER (protected). |
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C No thread partition exist for the 3-D shared buffer (shared3dBuf_r4/r8). |
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C Therefore, the 3-D buffer is considered to be owned by master-thread and |
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C any access by other than master thread is put between BARRIER (protected). |
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C |
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C Created: 03/16/99 adcroft@mit.edu |
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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 "EESUPPORT.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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#include "EEBUFF_SCPU.h" |
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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 useCurrentDir |
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CHARACTER*(2) arrType |
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INTEGER kSize, kLo, kHi |
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INTEGER irecord |
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INTEGER myThid |
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C !OUTPUT PARAMETERS: |
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_RL fldRL(*) |
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_RS fldRS(*) |
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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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LOGICAL MASTER_CPU_IO |
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EXTERNAL ILNBLNK |
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EXTERNAL MDS_RECLEN |
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EXTERNAL MASTER_CPU_IO |
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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,pfName |
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CHARACTER*(MAX_LEN_MBUF) msgBuf |
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LOGICAL exst |
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LOGICAL globalFile, fileIsOpen |
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LOGICAL iAmDoingIO |
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LOGICAL useExch2ioLayOut |
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INTEGER xSize, ySize |
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INTEGER iG,jG,bi,bj |
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INTEGER i1,i2,i,j,k,nNz |
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INTEGER irec,dUnit,IL,pIL |
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INTEGER length_of_rec |
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INTEGER bBij |
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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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|
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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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useExch2ioLayOut = .FALSE. |
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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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useExch2ioLayOut = .TRUE. |
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ENDIF |
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#endif /* ALLOW_EXCH2 */ |
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|
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C Assume nothing |
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globalFile = .FALSE. |
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fileIsOpen = .FALSE. |
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IL = ILNBLNK( fName ) |
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pIL = ILNBLNK( mdsioLocalDir ) |
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nNz = 1 + kHi - kLo |
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|
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C Only do I/O if I am the master thread (and mpi process 0 IF useSingleCpuIO): |
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iAmDoingIO = MASTER_CPU_IO(myThid) |
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|
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C File name should not be too long: |
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C IL(+pIL if not useCurrentDir)(+5: '.data')(+8: bi,bj) =< MAX_LEN_FNAM |
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C and shorter enough to be written to msgBuf with other informations |
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IF ( useCurrentDir .AND. (90+IL).GT.MAX_LEN_MBUF ) THEN |
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WRITE(msgBuf,'(2A,2(I4,A))') 'MDS_READ_FIELD: ', |
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& 'Too long (IL=',IL,') file name:' |
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CALL PRINT_ERROR( msgBuf, myThid ) |
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WRITE(errorMessageUnit,'(3A)')'file: >',fName(1:IL),'<' |
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CALL ALL_PROC_DIE( myThid ) |
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STOP 'ABNORMAL END: S/R MDS_READ_FIELD' |
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ELSEIF ( (90+IL+pIL).GT.MAX_LEN_MBUF ) THEN |
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WRITE(msgBuf,'(2A,2(I4,A))') 'MDS_READ_FIELD: ', |
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& 'Too long (pIL=',pIL,', IL=',IL,') pfix + file name:' |
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CALL PRINT_ERROR( msgBuf, myThid ) |
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WRITE(errorMessageUnit,'(3A)')'pfix: >',mdsioLocalDir(1:pIL),'<' |
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WRITE(errorMessageUnit,'(3A)')'file: >',fName(1:IL),'<' |
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CALL ALL_PROC_DIE( myThid ) |
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STOP 'ABNORMAL END: S/R MDS_READ_FIELD' |
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ENDIF |
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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_READ_FIELD: file="', fName(1:IL), '"' |
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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_READ_FIELD: 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_READ_FIELD: Invalid value for irecord' |
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CALL PRINT_ERROR( msgBuf, myThid ) |
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CALL ALL_PROC_DIE( myThid ) |
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STOP 'ABNORMAL END: S/R MDS_READ_FIELD' |
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ENDIF |
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C check for valid sub-set of levels: |
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IF ( kLo.LT.1 .OR. kHi.GT.kSize ) THEN |
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WRITE(msgBuf,'(3A,I10)') |
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& ' MDS_READ_FIELD: file="', fName(1:IL), '"' |
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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_READ_FIELD: arguments kSize=', kSize, |
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& ' , kLo=', kLo, ' , kHi=', kHi |
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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_READ_FIELD: invalid sub-set of levels' |
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CALL PRINT_ERROR( msgBuf, myThid ) |
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CALL ALL_PROC_DIE( myThid ) |
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STOP 'ABNORMAL END: S/R MDS_READ_FIELD' |
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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_READ_FIELD: file="', fName(1:IL), '"' |
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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_READ_FIELD: Nb Lev to read =', 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_READ_FIELD: 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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CALL ALL_PROC_DIE( myThid ) |
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STOP 'ABNORMAL END: S/R MDS_READ_FIELD' |
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ENDIF |
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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 Assign special directory |
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IF ( useCurrentDir .OR. 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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|
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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 Check first for global file with simple name (ie. fName) |
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dataFName = fName |
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INQUIRE( file=dataFName, exist=exst ) |
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IF (exst) THEN |
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IF ( debugLevel .GE. debLevB ) THEN |
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WRITE(msgBuf,'(A,A)') |
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& ' MDS_READ_FIELD: opening global file: ',dataFName(1:IL) |
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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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globalFile = .TRUE. |
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ENDIF |
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|
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C If negative check for global file with MDS name (ie. fName.data) |
| 247 |
IF (.NOT. globalFile) THEN |
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WRITE(dataFName,'(2a)') fName(1:IL),'.data' |
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INQUIRE( file=dataFName, exist=exst ) |
| 250 |
IF (exst) THEN |
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IF ( debugLevel .GE. debLevB ) THEN |
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WRITE(msgBuf,'(A,A)') |
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& ' MDS_READ_FIELD: opening global file: ',dataFName(1:IL+5) |
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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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globalFile = .TRUE. |
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ENDIF |
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ENDIF |
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|
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C- endif iAmDoingIO |
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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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IF ( useSingleCPUIO ) THEN |
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|
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C master thread of process 0, only, opens a global file |
| 269 |
IF ( iAmDoingIO ) THEN |
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C If global file is visible to process 0, then open it here. |
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C Otherwise stop program. |
| 272 |
IF ( globalFile) THEN |
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length_of_rec = MDS_RECLEN( filePrec, xSize*ySize, myThid ) |
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OPEN( dUnit, file=dataFName, status='old', |
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& access='direct', recl=length_of_rec ) |
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ELSE |
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WRITE(msgBuf,'(2A)') |
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& ' MDS_READ_FIELD: filename: ', dataFName(1:IL+5) |
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CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
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& SQUEEZE_RIGHT, myThid) |
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CALL PRINT_ERROR( msgBuf, myThid ) |
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WRITE(msgBuf,'(A)') |
| 283 |
& ' MDS_READ_FIELD: File does not exist' |
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CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
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& SQUEEZE_RIGHT, myThid) |
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CALL PRINT_ERROR( msgBuf, myThid ) |
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STOP 'ABNORMAL END: S/R MDS_READ_FIELD' |
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ENDIF |
| 289 |
C- endif iAmDoingIO |
| 290 |
ENDIF |
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|
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DO k=kLo,kHi |
| 293 |
|
| 294 |
C master thread of process 0, only, read from file |
| 295 |
IF ( iAmDoingIO ) THEN |
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irec = 1 + k-kLo + (irecord-1)*nNz |
| 297 |
IF (filePrec .EQ. precFloat32) THEN |
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READ(dUnit,rec=irec) ( xy_buffer_r4(i),i=1,xSize*ySize ) |
| 299 |
#ifdef _BYTESWAPIO |
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CALL MDS_BYTESWAPR4( xSize*ySize, xy_buffer_r4 ) |
| 301 |
#endif |
| 302 |
ELSE |
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READ(dUnit,rec=irec) ( xy_buffer_r8(i),i=1,xSize*ySize ) |
| 304 |
#ifdef _BYTESWAPIO |
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CALL MDS_BYTESWAPR8( xSize*ySize, xy_buffer_r8 ) |
| 306 |
#endif |
| 307 |
ENDIF |
| 308 |
C- endif iAmDoingIO |
| 309 |
ENDIF |
| 310 |
|
| 311 |
C Wait for all thread to finish. This prevents other threads to continue |
| 312 |
C to acces shared buffer while master thread is loading data into |
| 313 |
CALL BAR2( myThid ) |
| 314 |
|
| 315 |
IF ( filePrec.EQ.precFloat32 ) THEN |
| 316 |
CALL SCATTER_2D_R4( |
| 317 |
U xy_buffer_r4, |
| 318 |
O sharedLocBuf_r4, |
| 319 |
I xSize, ySize, |
| 320 |
I useExch2ioLayOut, .FALSE., myThid ) |
| 321 |
C All threads wait for Master to finish loading into shared buffer |
| 322 |
CALL BAR2( myThid ) |
| 323 |
IF ( arrType.EQ.'RS' ) THEN |
| 324 |
CALL MDS_PASS_R4toRS( sharedLocBuf_r4, fldRS, |
| 325 |
I 0, 0, 1, k, kSize, 0, 0, .TRUE., myThid ) |
| 326 |
ELSEIF ( arrType.EQ.'RL' ) THEN |
| 327 |
CALL MDS_PASS_R4toRL( sharedLocBuf_r4, fldRL, |
| 328 |
I 0, 0, 1, k, kSize, 0, 0, .TRUE., myThid ) |
| 329 |
ELSE |
| 330 |
WRITE(msgBuf,'(A)') |
| 331 |
& ' MDS_READ_FIELD: illegal value for arrType' |
| 332 |
CALL PRINT_ERROR( msgBuf, myThid ) |
| 333 |
CALL ALL_PROC_DIE( myThid ) |
| 334 |
STOP 'ABNORMAL END: S/R MDS_READ_FIELD' |
| 335 |
ENDIF |
| 336 |
ELSEIF ( filePrec.EQ.precFloat64 ) THEN |
| 337 |
CALL SCATTER_2D_R8( |
| 338 |
U xy_buffer_r8, |
| 339 |
O sharedLocBuf_r8, |
| 340 |
I xSize, ySize, |
| 341 |
I useExch2ioLayOut, .FALSE., myThid ) |
| 342 |
C All threads wait for Master to finish loading into shared buffer |
| 343 |
CALL BAR2( myThid ) |
| 344 |
IF ( arrType.EQ.'RS' ) THEN |
| 345 |
CALL MDS_PASS_R8toRS( sharedLocBuf_r8, fldRS, |
| 346 |
I 0, 0, 1, k, kSize, 0, 0, .TRUE., myThid ) |
| 347 |
ELSEIF ( arrType.EQ.'RL' ) THEN |
| 348 |
CALL MDS_PASS_R8toRL( sharedLocBuf_r8, fldRL, |
| 349 |
I 0, 0, 1, k, kSize, 0, 0, .TRUE., myThid ) |
| 350 |
ELSE |
| 351 |
WRITE(msgBuf,'(A)') |
| 352 |
& ' MDS_READ_FIELD: illegal value for arrType' |
| 353 |
CALL PRINT_ERROR( msgBuf, myThid ) |
| 354 |
CALL ALL_PROC_DIE( myThid ) |
| 355 |
STOP 'ABNORMAL END: S/R MDS_READ_FIELD' |
| 356 |
ENDIF |
| 357 |
ELSE |
| 358 |
WRITE(msgBuf,'(A)') |
| 359 |
& ' MDS_READ_FIELD: illegal value for filePrec' |
| 360 |
CALL PRINT_ERROR( msgBuf, myThid ) |
| 361 |
CALL ALL_PROC_DIE( myThid ) |
| 362 |
STOP 'ABNORMAL END: S/R MDS_READ_FIELD' |
| 363 |
ENDIF |
| 364 |
|
| 365 |
ENDDO |
| 366 |
c ENDDO k=kLo,kHi |
| 367 |
|
| 368 |
IF ( iAmDoingIO ) THEN |
| 369 |
CLOSE( dUnit ) |
| 370 |
ENDIF |
| 371 |
|
| 372 |
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
| 373 |
C--- else .NOT.useSingleCpuIO |
| 374 |
ELSE |
| 375 |
|
| 376 |
C Wait for all thread to finish. This prevents other threads to continue |
| 377 |
C to acces 3-D buffer while master thread is reading |
| 378 |
c CALL BAR2( myThid ) |
| 379 |
|
| 380 |
C Only do I/O if I am the master thread |
| 381 |
IF ( iAmDoingIO ) THEN |
| 382 |
|
| 383 |
C If we are reading from a global file then we open it here |
| 384 |
IF (globalFile) THEN |
| 385 |
length_of_rec = MDS_RECLEN( filePrec, sNx, myThid ) |
| 386 |
OPEN( dUnit, file=dataFName, status='old', |
| 387 |
& access='direct', recl=length_of_rec ) |
| 388 |
fileIsOpen=.TRUE. |
| 389 |
ENDIF |
| 390 |
|
| 391 |
C Loop over all tiles |
| 392 |
DO bj=1,nSy |
| 393 |
DO bi=1,nSx |
| 394 |
bBij = sNx*sNy*nNz*( bi-1 + (bj-1)*nSx ) |
| 395 |
|
| 396 |
IF (globalFile) THEN |
| 397 |
C--- Case of 1 Global file: |
| 398 |
|
| 399 |
c IF (fileIsOpen) THEN |
| 400 |
tNx = sNx |
| 401 |
tNy = sNy |
| 402 |
global_nTx = xSize/sNx |
| 403 |
tBx = myXGlobalLo-1 + (bi-1)*sNx |
| 404 |
tBy = myYGlobalLo-1 + (bj-1)*sNy |
| 405 |
iGjLoc = 0 |
| 406 |
jGjLoc = 1 |
| 407 |
#ifdef ALLOW_EXCH2 |
| 408 |
IF ( useExch2ioLayOut ) THEN |
| 409 |
tN = W2_myTileList(bi,bj) |
| 410 |
c tNx = exch2_tNx(tN) |
| 411 |
c tNy = exch2_tNy(tN) |
| 412 |
c global_nTx = exch2_global_Nx/tNx |
| 413 |
tBx = exch2_txGlobalo(tN) - 1 |
| 414 |
tBy = exch2_tyGlobalo(tN) - 1 |
| 415 |
IF ( exch2_mydNx(tN) .GT. xSize ) THEN |
| 416 |
C- face x-size larger than glob-size : fold it |
| 417 |
iGjLoc = 0 |
| 418 |
jGjLoc = exch2_mydNx(tN) / xSize |
| 419 |
ELSEIF ( exch2_tNy(tN) .GT. ySize ) THEN |
| 420 |
C- tile y-size larger than glob-size : make a long line |
| 421 |
iGjLoc = exch2_mydNx(tN) |
| 422 |
jGjLoc = 0 |
| 423 |
ELSE |
| 424 |
C- default (face fit into global-IO-array) |
| 425 |
iGjLoc = 0 |
| 426 |
jGjLoc = 1 |
| 427 |
ENDIF |
| 428 |
ENDIF |
| 429 |
#endif /* ALLOW_EXCH2 */ |
| 430 |
|
| 431 |
|
| 432 |
|
| 433 |
|
| 434 |
|
| 435 |
chenze : Our mpi-i/o-based routines don't yet support 32-bit elements |
| 436 |
chenze : so we are routing those through the standard i/o mechanism. |
| 437 |
chenze : Also, we're assuming that byte-swapping of the usual bigendian |
| 438 |
chenze : files is done via Fortran i/o. Our C routines will not do this, |
| 439 |
chenze : so we swap explicitly here. If _BYTESWAPIO is set, this will break. |
| 440 |
|
| 441 |
#ifdef ALLOW_ASYNCIO |
| 442 |
! WRITE (msgBuf, '(A)') ' use NEW readField' |
| 443 |
! CALL PRINT_ERROR ( msgBuf, myThid ) |
| 444 |
|
| 445 |
IF ( filePrec.EQ.precFloat64 ) then |
| 446 |
|
| 447 |
irec = (irecord-1)*nNz*global_nTx*ySize |
| 448 |
|
| 449 |
call readField(MPI_COMM_MODEL, dataFName, |
| 450 |
& irec, |
| 451 |
& shared3dBuf_r8, tN, nNz) |
| 452 |
|
| 453 |
|
| 454 |
CALL MDS_BYTESWAPR8( sNx*sNy*nNz*nSx*nSy, shared3dBuf_r8 ) |
| 455 |
|
| 456 |
else |
| 457 |
#endif |
| 458 |
|
| 459 |
! WRITE (msgBuf, '(A)') ' use OLD readField' |
| 460 |
! CALL PRINT_ERROR ( msgBuf, myThid ) |
| 461 |
|
| 462 |
DO k=kLo,kHi |
| 463 |
DO j=1,tNy |
| 464 |
irec = 1 + ( tBx + (j-1)*iGjLoc )/sNx |
| 465 |
& + ( tBy + (j-1)*jGjLoc )*global_nTx |
| 466 |
& +( k-kLo + (irecord-1)*nNz )*global_nTx*ySize |
| 467 |
i1 = bBij + 1 + (j-1)*sNx + (k-kLo)*sNx*sNy |
| 468 |
i2 = bBij + j*sNx + (k-kLo)*sNx*sNy |
| 469 |
IF ( filePrec.EQ.precFloat32 ) THEN |
| 470 |
READ(dUnit,rec=irec) (shared3dBuf_r4(i),i=i1,i2) |
| 471 |
ELSE |
| 472 |
READ(dUnit,rec=irec) (shared3dBuf_r8(i),i=i1,i2) |
| 473 |
ENDIF |
| 474 |
C End of j,k loops |
| 475 |
ENDDO |
| 476 |
ENDDO |
| 477 |
|
| 478 |
#ifdef ALLOW_ASYNCIO |
| 479 |
endif |
| 480 |
#endif |
| 481 |
|
| 482 |
|
| 483 |
|
| 484 |
|
| 485 |
C end if fileIsOpen |
| 486 |
c ENDIF |
| 487 |
|
| 488 |
ELSE |
| 489 |
C--- Case of 1 file per tile (globalFile=F): |
| 490 |
|
| 491 |
C If we are reading from a tiled MDS file then we open each one here |
| 492 |
iG=bi+(myXGlobalLo-1)/sNx |
| 493 |
jG=bj+(myYGlobalLo-1)/sNy |
| 494 |
WRITE(dataFName,'(2A,I3.3,A,I3.3,A)') |
| 495 |
& pfName(1:pIL),'.',iG,'.',jG,'.data' |
| 496 |
INQUIRE( file=dataFName, exist=exst ) |
| 497 |
C Of course, we only open the file if the tile is "active" |
| 498 |
C (This is a place-holder for the active/passive mechanism |
| 499 |
IF (exst) THEN |
| 500 |
IF ( debugLevel .GE. debLevB ) THEN |
| 501 |
WRITE(msgBuf,'(A,A)') |
| 502 |
& ' MDS_READ_FIELD: opening file: ',dataFName(1:pIL+13) |
| 503 |
CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
| 504 |
& SQUEEZE_RIGHT, myThid) |
| 505 |
ENDIF |
| 506 |
length_of_rec = MDS_RECLEN( filePrec, sNx*sNy*nNz, myThid ) |
| 507 |
OPEN( dUnit, file=dataFName, status='old', |
| 508 |
& access='direct', recl=length_of_rec ) |
| 509 |
fileIsOpen=.TRUE. |
| 510 |
ELSE |
| 511 |
fileIsOpen=.FALSE. |
| 512 |
WRITE(msgBuf,'(4A)') ' MDS_READ_FIELD: filename: ', |
| 513 |
& fName(1:IL),' , ', dataFName(1:pIL+13) |
| 514 |
CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
| 515 |
& SQUEEZE_RIGHT, myThid) |
| 516 |
CALL PRINT_ERROR( msgBuf, myThid ) |
| 517 |
WRITE(msgBuf,'(A)') |
| 518 |
& ' MDS_READ_FIELD: Files DO not exist' |
| 519 |
CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
| 520 |
& SQUEEZE_RIGHT, myThid) |
| 521 |
CALL PRINT_ERROR( msgBuf, myThid ) |
| 522 |
STOP 'ABNORMAL END: S/R MDS_READ_FIELD' |
| 523 |
ENDIF |
| 524 |
|
| 525 |
irec = irecord |
| 526 |
i1 = bBij + 1 |
| 527 |
i2 = bBij + sNx*sNy*nNz |
| 528 |
IF ( filePrec.EQ.precFloat32 ) THEN |
| 529 |
READ(dUnit,rec=irec) (shared3dBuf_r4(i),i=i1,i2) |
| 530 |
ELSE |
| 531 |
READ(dUnit,rec=irec) (shared3dBuf_r8(i),i=i1,i2) |
| 532 |
ENDIF |
| 533 |
|
| 534 |
C here We close the tiled MDS file |
| 535 |
IF ( fileIsOpen ) THEN |
| 536 |
CLOSE( dUnit ) |
| 537 |
fileIsOpen = .FALSE. |
| 538 |
ENDIF |
| 539 |
|
| 540 |
C--- End Global File / tile-file cases |
| 541 |
ENDIF |
| 542 |
|
| 543 |
C End of bi,bj loops |
| 544 |
ENDDO |
| 545 |
ENDDO |
| 546 |
|
| 547 |
C If global file was opened then close it |
| 548 |
IF (fileIsOpen .AND. globalFile) THEN |
| 549 |
CLOSE( dUnit ) |
| 550 |
fileIsOpen = .FALSE. |
| 551 |
ENDIF |
| 552 |
|
| 553 |
#ifdef _BYTESWAPIO |
| 554 |
IF ( filePrec.EQ.precFloat32 ) THEN |
| 555 |
CALL MDS_BYTESWAPR4( sNx*sNy*nNz*nSx*nSy, shared3dBuf_r4 ) |
| 556 |
ELSE |
| 557 |
CALL MDS_BYTESWAPR8( sNx*sNy*nNz*nSx*nSy, shared3dBuf_r8 ) |
| 558 |
ENDIF |
| 559 |
#endif |
| 560 |
|
| 561 |
C- endif iAmDoingIO |
| 562 |
ENDIF |
| 563 |
|
| 564 |
C All threads wait for Master to finish reading into shared buffer |
| 565 |
CALL BAR2( myThid ) |
| 566 |
|
| 567 |
C--- Copy from 3-D buffer to fldRL/RS (multi-threads): |
| 568 |
IF ( filePrec.EQ.precFloat32 ) THEN |
| 569 |
IF ( arrType.EQ.'RS' ) THEN |
| 570 |
CALL MDS_PASS_R4toRS( shared3dBuf_r4, fldRS, |
| 571 |
I 0, 0, nNz, kLo, kSize, 0, 0, .TRUE., myThid ) |
| 572 |
ELSEIF ( arrType.EQ.'RL' ) THEN |
| 573 |
CALL MDS_PASS_R4toRL( shared3dBuf_r4, fldRL, |
| 574 |
I 0, 0, nNz, kLo, kSize, 0, 0, .TRUE., myThid ) |
| 575 |
ELSE |
| 576 |
WRITE(msgBuf,'(A)') |
| 577 |
& ' MDS_READ_FIELD: illegal value for arrType' |
| 578 |
CALL PRINT_ERROR( msgBuf, myThid ) |
| 579 |
CALL ALL_PROC_DIE( myThid ) |
| 580 |
STOP 'ABNORMAL END: S/R MDS_READ_FIELD' |
| 581 |
ENDIF |
| 582 |
ELSEIF ( filePrec.EQ.precFloat64 ) THEN |
| 583 |
IF ( arrType.EQ.'RS' ) THEN |
| 584 |
CALL MDS_PASS_R8toRS( shared3dBuf_r8, fldRS, |
| 585 |
I 0, 0, nNz, kLo, kSize, 0, 0, .TRUE., myThid ) |
| 586 |
ELSEIF ( arrType.EQ.'RL' ) THEN |
| 587 |
CALL MDS_PASS_R8toRL( shared3dBuf_r8, fldRL, |
| 588 |
I 0, 0, nNz, kLo, kSize, 0, 0, .TRUE., myThid ) |
| 589 |
ELSE |
| 590 |
WRITE(msgBuf,'(A)') |
| 591 |
& ' MDS_READ_FIELD: illegal value for arrType' |
| 592 |
CALL PRINT_ERROR( msgBuf, myThid ) |
| 593 |
CALL ALL_PROC_DIE( myThid ) |
| 594 |
STOP 'ABNORMAL END: S/R MDS_READ_FIELD' |
| 595 |
ENDIF |
| 596 |
ELSE |
| 597 |
WRITE(msgBuf,'(A)') |
| 598 |
& ' MDS_READ_FIELD: illegal value for filePrec' |
| 599 |
CALL PRINT_ERROR( msgBuf, myThid ) |
| 600 |
CALL ALL_PROC_DIE( myThid ) |
| 601 |
STOP 'ABNORMAL END: S/R MDS_READ_FIELD' |
| 602 |
ENDIF |
| 603 |
|
| 604 |
C Wait for all threads to finish getting data from 3-D shared buffer. |
| 605 |
C This prevents the master-thread to change the buffer content before |
| 606 |
C every one got his data. |
| 607 |
CALL BAR2( myThid ) |
| 608 |
|
| 609 |
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
| 610 |
C if useSingleCpuIO / else / end |
| 611 |
ENDIF |
| 612 |
|
| 613 |
RETURN |
| 614 |
END |
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