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C $Header: /u/gcmpack/MITgcm/pkg/mdsio/mdsio_readvector.F,v 1.1 2001/03/06 15:28:54 adcroft 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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SUBROUTINE MDSREADVECTOR( |
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I fName, |
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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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|
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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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|
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C Routine arguments |
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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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Real arr(narr) |
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integer irecord |
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integer myThid |
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ce |
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integer bi,bj |
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ce |
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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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C Local variables |
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character*(80) dataFName |
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integer iG,jG,irec,dUnit,IL |
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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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C ------------------------------------------------------------------ |
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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 (irecord .LT. 1) then |
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write(msgbuf,'(a,i9.8)') |
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& ' 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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& ' MDSREADVECTOR: invalid value for irecord' |
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call print_error( msgbuf, mythid ) |
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stop 'ABNORMAL END: S/R MDSREADVECTOR' |
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endif |
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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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|
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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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write(msgbuf,'(a,a)') |
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& ' MDSREADVECTOR: opening global file: ',dataFName |
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call print_message( msgbuf, standardmessageunit, |
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& SQUEEZE_RIGHT , mythid) |
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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) |
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if (.NOT. globalFile) then |
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write(dataFname(1:80),'(2a)') fName(1:IL),'.data' |
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inquire( file=dataFname, exist=exst ) |
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if (exst) then |
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write(msgbuf,'(a,a)') |
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& ' MDSREADVECTOR: opening global file: ',dataFName |
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call print_message( msgbuf, standardmessageunit, |
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& SQUEEZE_RIGHT , mythid) |
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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 If we are reading from a global file then we open it here |
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if (globalFile) then |
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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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& access='direct', recl=length_of_rec ) |
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fileIsOpen=.TRUE. |
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endif |
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|
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C Loop over all tiles |
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ce do bj=1,nSy |
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ce do bi=1,nSx |
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C If we are reading from a tiled MDS file then we open each one here |
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if (.NOT. globalFile) then |
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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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write(dataFname(1:80),'(2a,i3.3,a,i3.3,a)') |
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& fName(1:IL),'.',iG,'.',jG,'.data' |
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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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C (This is a place-holder for the active/passive mechanism) |
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if (exst) then |
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write(msgbuf,'(a,a)') |
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& ' MDSREADVECTOR: opening file: ',dataFName |
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call print_message( msgbuf, standardmessageunit, |
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& SQUEEZE_RIGHT , mythid) |
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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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& access='direct', recl=length_of_rec ) |
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fileIsOpen=.TRUE. |
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else |
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fileIsOpen=.FALSE. |
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write(msgbuf,'(a,a)') |
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& ' MDSREADVECTOR: opening file: ',dataFName |
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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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& ' 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 MDSREADVECTOR' |
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endif |
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endif |
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if (fileIsOpen) then |
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if (globalFile) then |
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iG = myXGlobalLo-1+(bi-1)*sNx |
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jG = myYGlobalLo-1+(bj-1)*sNy |
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irec = 1 + int(iG/sNx) + (jG/sNy)*nSx*nPx + |
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& (irecord-1)*nSx*nPx*nSy*nPy |
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else |
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iG = 0 |
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jG = 0 |
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irec = irecord |
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endif |
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if (filePrec .eq. precFloat32) then |
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call MDS_READ_RS_VEC( dUnit, irec, narr, arr, myThid ) |
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elseif (filePrec .eq. precFloat64) then |
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call MDS_READ_RL_VEC( dUnit, irec, narr, arr, myThid ) |
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else |
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write(msgbuf,'(a)') |
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& ' MDSREADVECTOR: illegal value for filePrec' |
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call print_error( msgbuf, mythid ) |
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stop 'ABNORMAL END: S/R MDSREADVECTOR' |
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endif |
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if (.NOT. globalFile) then |
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close( dUnit ) |
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fileIsOpen = .FALSE. |
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endif |
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endif |
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C End of bi,bj loops |
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ce enddo |
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ce enddo |
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|
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C If global file was opened then close it |
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if (fileIsOpen .AND. globalFile) then |
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close( dUnit ) |
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fileIsOpen = .FALSE. |
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endif |
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|
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_END_MASTER( myThid ) |
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|
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C ------------------------------------------------------------------ |
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return |
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end |
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