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jmc |
1.3 |
C $Header: /u/gcmpack/MITgcm/pkg/flt/flt_mdsreadvector.F,v 1.2 2008/12/03 01:43:07 jmc Exp $ |
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jmc |
1.2 |
C $Name: $ |
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adcroft |
1.1 |
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jmc |
1.2 |
#include "FLT_OPTIONS.h" |
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adcroft |
1.1 |
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#undef SAFE_IO |
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#ifdef SAFE_IO |
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#define _NEW_STATUS 'new' |
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#else |
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#define _NEW_STATUS 'unknown' |
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#endif |
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jmc |
1.2 |
SUBROUTINE FLT_MDSREADVECTOR( |
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adcroft |
1.1 |
I fName, |
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O globalFile, |
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I filePrec, |
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I arrType, |
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I narr, |
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O arr, |
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I bi, |
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I bj, |
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I irecord, |
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I myThid ) |
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C |
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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 arrType char(2) declaration of "arr": either "RS" or "RL" |
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C narr integer size of third dimension: normally either 1 or Nr |
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C arr RS/RL array to read into, arr(narr) |
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ce bi integer x tile index |
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ce bj integer y tile index |
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C irecord integer record number to read |
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C myThid integer thread identifier |
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C |
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C Created: 03/26/99 eckert@mit.edu |
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C Modified: 03/29/99 adcroft@mit.edu + eckert@mit.edu |
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C Fixed to work work with _RS and _RL declarations |
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C Modified: 07/27/99 eckert@mit.edu |
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C Customized for state estimation (--> active_file_control.F) |
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c Modified: 09/29/00 abiastoch@ucsd.edu |
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c based on mdsreadvector |
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c Checks first for local files and then for global |
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jmc |
1.2 |
IMPLICIT NONE |
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C Global variables / COMMON blocks |
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adcroft |
1.1 |
#include "SIZE.h" |
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#include "EEPARAMS.h" |
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#include "PARAMS.h" |
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C Routine arguments |
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jmc |
1.2 |
CHARACTER*(*) fName |
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INTEGER filePrec |
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CHARACTER*(2) arrType |
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INTEGER narr |
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c Real arr(narr) |
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_RL arr(narr) |
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INTEGER irecord |
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INTEGER myThid |
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INTEGER bi,bj |
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adcroft |
1.1 |
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C Functions |
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jmc |
1.2 |
INTEGER ILNBLNK |
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EXTERNAL ILNBLNK |
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INTEGER MDS_RECLEN |
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EXTERNAL MDS_RECLEN |
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adcroft |
1.1 |
C Local variables |
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jmc |
1.2 |
CHARACTER*(MAX_LEN_FNAM) dataFName |
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INTEGER i,iG,jG,irec,dUnit,IL,iLfn |
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LOGICAL exst |
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LOGICAL globalFile,fileIsOpen |
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INTEGER length_of_rec |
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CHARACTER*(max_len_mbuf) msgbuf |
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adcroft |
1.1 |
C ------------------------------------------------------------------ |
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jmc |
1.2 |
C Only DO I/O IF I am the master thread |
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adcroft |
1.1 |
_BEGIN_MASTER( myThid ) |
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C Record number must be >= 1 |
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jmc |
1.2 |
IF (irecord .LT. 1) THEN |
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WRITE(msgbuf,'(A,I9.8)') |
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& ' FLT_MDSREADVECTOR: argument irecord = ',irecord |
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CALL PRINT_MESSAGE( msgbuf, standardmessageunit, |
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& SQUEEZE_RIGHT , myThid) |
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WRITE(msgbuf,'(A)') |
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& ' FLT_MDSREADVECTOR: invalid value for irecord' |
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CALL PRINT_ERROR( msgbuf, myThid ) |
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STOP 'ABNORMAL END: S/R FLT_MDSREADVECTOR' |
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ENDIF |
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IF ( arrType.NE.'RL' ) THEN |
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WRITE(msgbuf,'(3A)') |
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& ' FLT_MDSREADVECTOR: not yet coded for arrType="',arrType,'"' |
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CALL PRINT_ERROR( msgbuf, myThid ) |
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STOP 'ABNORMAL END: S/R FLT_MDSREADVECTOR' |
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ENDIF |
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adcroft |
1.1 |
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C Assume nothing |
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globalFile = .TRUE. |
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fileIsOpen = .FALSE. |
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IL=ILNBLNK( fName ) |
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C Assign a free unit number as the I/O channel for this routine |
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jmc |
1.2 |
CALL MDSFINDUNIT( dUnit, myThid ) |
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adcroft |
1.1 |
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C Check first for local file |
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iG=bi+(myXGlobalLo-1)/sNx ! Kludge until unstructered tiles |
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jG=bj+(myYGlobalLo-1)/sNy ! Kludge until unstructered tiles |
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jmc |
1.2 |
WRITE(dataFname,'(2A,I3.3,A,I3.3,A)') |
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adcroft |
1.1 |
& fName(1:IL),'.',iG,'.',jG,'.data' |
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jmc |
1.2 |
INQUIRE( file=dataFname, exist=exst ) |
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C Of course, we only open the file IF the tile is "active" |
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adcroft |
1.1 |
C (This is a place-holder for the active/passive mechanism) |
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jmc |
1.2 |
IF (exst) THEN |
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globalFile = .FALSE. |
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ENDIF |
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adcroft |
1.1 |
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C If no local file is available check for global files |
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jmc |
1.2 |
IF (globalFile) THEN |
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adcroft |
1.1 |
C Check first for global file with simple name (ie. fName) |
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jmc |
1.2 |
WRITE(dataFname,'(2A)') fName(1:IL) |
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iLfn = IL |
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INQUIRE( file=dataFname, exist=exst ) |
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c IF (exst) THEN |
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c write(0,*) 'found file: ',dataFname(1:iLfn) |
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c ENDIF |
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IF ( .NOT.exst) THEN |
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WRITE(dataFname,'(2A)') fName(1:IL),'.data' |
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iLfn = IL+5 |
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INQUIRE( file=dataFname, exist=exst ) |
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c IF (exst) THEN |
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c write(0,*) 'found file: ',dataFname(1:iLfn) |
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c ENDIF |
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ENDIF |
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ENDIF |
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adcroft |
1.1 |
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C If we are reading from a global file then we open it here |
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jmc |
1.2 |
IF (globalFile) THEN |
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jmc |
1.3 |
IF ( debugLevel.GE.debLevB ) THEN |
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jmc |
1.2 |
WRITE(msgbuf,'(A,A)') |
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& ' FLT_MDSREADVECTOR: opening global file: ',dataFName(1:iLfn) |
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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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length_of_rec=MDS_RECLEN( filePrec, narr, myThid ) |
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OPEN( dUnit, file=dataFName, status='old', |
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adcroft |
1.1 |
& access='direct', recl=length_of_rec ) |
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fileIsOpen=.TRUE. |
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jmc |
1.2 |
ENDIF |
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adcroft |
1.1 |
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C Loop over all tiles |
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jmc |
1.2 |
ce DO bj=1,nSy |
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ce DO bi=1,nSx |
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adcroft |
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C If we are reading from a tiled MDS file then we open each one here |
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jmc |
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IF (.NOT. globalFile) THEN |
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adcroft |
1.1 |
iG=bi+(myXGlobalLo-1)/sNx ! Kludge until unstructered tiles |
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jG=bj+(myYGlobalLo-1)/sNy ! Kludge until unstructered tiles |
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jmc |
1.2 |
WRITE(dataFname,'(2A,I3.3,A,I3.3,A)') |
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adcroft |
1.1 |
& fName(1:IL),'.',iG,'.',jG,'.data' |
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jmc |
1.2 |
iLfn= IL+8+5 |
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INQUIRE( file=dataFname, exist=exst ) |
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C Of course, we only open the file IF the tile is "active" |
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adcroft |
1.1 |
C (This is a place-holder for the active/passive mechanism) |
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jmc |
1.2 |
IF (exst) THEN |
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jmc |
1.3 |
IF ( debugLevel.GE.debLevB ) THEN |
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jmc |
1.2 |
WRITE(msgbuf,'(A,A)') |
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& ' FLT_MDSREADVECTOR: opening file: ',dataFName(1:iLfn) |
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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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length_of_rec=MDS_RECLEN( filePrec, narr, myThid ) |
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OPEN( dUnit, file=dataFName, status='old', |
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adcroft |
1.1 |
& access='direct', recl=length_of_rec ) |
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fileIsOpen=.TRUE. |
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jmc |
1.2 |
ELSE |
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adcroft |
1.1 |
fileIsOpen=.FALSE. |
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jmc |
1.2 |
WRITE(msgbuf,'(A)') |
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& ' FLT_MDSREADVECTOR: un-active tiles not implemented yet' |
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CALL PRINT_ERROR( msgbuf, myThid ) |
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STOP 'ABNORMAL END: S/R FLT_MDSREADVECTOR' |
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ENDIF |
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ENDIF |
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IF (fileIsOpen) THEN |
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adcroft |
1.1 |
irec = irecord |
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jmc |
1.2 |
IF (filePrec .EQ. precFloat32) THEN |
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C- wrong S/R call: should be MDS_READ_R4_VEC_RL (if arrType=RL) |
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C- or MDS_READ_R4_VEC_RS (if arrType=RS) |
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c CALL MDS_READ_RS_VEC( dUnit, irec, narr, arr, myThid ) |
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WRITE(msgbuf,'(A,I8)') |
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& ' FLT_MDSREADVECTOR: not yet coded for filePrec=',filePrec |
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CALL PRINT_ERROR( msgbuf, myThid ) |
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STOP 'ABNORMAL END: S/R FLT_MDSREADVECTOR' |
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ELSEIF (filePrec .EQ. precFloat64) THEN |
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C- wrong S/R call: should be MDS_READ_R8_VEC_RL (if arrType=RL) |
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C- or MDS_READ_R8_VEC_RS (if arrType=RS) |
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C- + byte-swapp should be inside MDS_READ_RL_VEC |
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c CALL MDS_READ_RL_VEC( dUnit, irec, narr, arr, myThid ) |
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READ( dUnit, rec=irec ) ( arr(i),i=1,narr ) |
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#ifdef _BYTESWAPIO |
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CALL MDS_BYTESWAPR8( narr, arr ) |
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#endif |
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ELSE |
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WRITE(msgbuf,'(A)') |
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& ' FLT_MDSREADVECTOR: illegal value for filePrec' |
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CALL PRINT_ERROR( msgbuf, myThid ) |
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STOP 'ABNORMAL END: S/R FLT_MDSREADVECTOR' |
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ENDIF |
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IF (.NOT. globalFile) THEN |
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CLOSE( dUnit ) |
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adcroft |
1.1 |
fileIsOpen = .FALSE. |
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jmc |
1.2 |
ENDIF |
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ENDIF |
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adcroft |
1.1 |
C End of bi,bj loops |
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jmc |
1.2 |
ce ENDDO |
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ce ENDDO |
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adcroft |
1.1 |
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C If global file was opened then close it |
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jmc |
1.2 |
IF (fileIsOpen .AND. globalFile) THEN |
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CLOSE( dUnit ) |
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adcroft |
1.1 |
fileIsOpen = .FALSE. |
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jmc |
1.2 |
ENDIF |
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adcroft |
1.1 |
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_END_MASTER( myThid ) |
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C ------------------------------------------------------------------ |
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jmc |
1.2 |
RETURN |
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END |
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