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C $Header: /u/gcmpack/MITgcm/pkg/mdsio/mdsio_readvector.F,v 1.6 2005/07/20 20:01:46 heimbach 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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#include "EESUPPORT.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*(128) dataFName,pfName |
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integer iG,jG,irec,dUnit,IL,pIL |
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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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|
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cph( |
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cph Deal with useSingleCpuIO |
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cph Not extended here for EXCH2 |
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integer k,l |
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integer nNz |
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integer vec_size |
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Real*4 xy_buffer_r4(narr*nPx*nPy) |
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Real*8 xy_buffer_r8(narr*nPx*nPy) |
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Real*8 global (narr*nPx*nPy) |
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_RL local(narr) |
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cph) |
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C ------------------------------------------------------------------ |
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|
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vec_size = narr*nPx*nPy |
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nNz = 1 |
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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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pIL = ILNBLNK( mdsioLocalDir ) |
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|
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C Assign special directory |
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if ( mdsioLocalDir .NE. ' ' ) then |
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write(pFname(1:128),'(2a)') |
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& mdsioLocalDir(1:pIL), fName(1:IL) |
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else |
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pFname= fName |
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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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if ( .not. useSingleCPUIO ) then |
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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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& ' 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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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) |
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if (.NOT. globalFile) then |
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write(dataFname(1:128),'(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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if ( debugLevel .GE. debLevB ) 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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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 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(1:128),'(2a,i3.3,a,i3.3,a)') |
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& pfName(1:pIL),'.',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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if ( debugLevel .GE. debLevB ) 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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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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& 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,'(3a)') |
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& ' MDSREADVECTOR: opening file: ',dataFName,pfName |
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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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endif |
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c endif ( .not. useSingleCPUIO ) |
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|
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|
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C ------------------------------------------------------------------ |
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|
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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 |
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_BEGIN_MASTER( myThid ) |
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#ifdef ALLOW_USE_MPI |
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IF( mpiMyId .EQ. 0 ) THEN |
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#else |
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IF ( .TRUE. ) THEN |
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#endif /* ALLOW_USE_MPI */ |
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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) globalFile = .TRUE. |
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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(1:128),'(2a)') fName(1:IL),'.data' |
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inquire( file=dataFname, exist=exst ) |
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if (exst) globalFile = .TRUE. |
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endif |
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|
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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. |
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if ( globalFile) then |
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length_of_rec=MDS_RECLEN( filePrec, vec_size, 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)') ' MDSREADFIELD: filename: ',dataFName |
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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)') |
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& ' MDSREADFIELD: 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 MDSREADFIELD' |
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endif |
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|
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ENDIF |
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_END_MASTER( myThid ) |
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|
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DO k=1,1 |
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|
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_BEGIN_MASTER( myThid ) |
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#ifdef ALLOW_USE_MPI |
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IF( mpiMyId .EQ. 0 ) THEN |
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#else |
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IF ( .TRUE. ) THEN |
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#endif /* ALLOW_USE_MPI */ |
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irec = irecord |
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if (filePrec .eq. precFloat32) then |
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read(dUnit,rec=irec) xy_buffer_r4 |
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#ifdef _BYTESWAPIO |
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call MDS_BYTESWAPR4( vec_size, xy_buffer_r4 ) |
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#endif |
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#if defined(ALLOW_EXCH2) && !defined(MISSING_TILE_IO) |
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c |
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#else /* defined(ALLOW_EXCH2) && !defined(MISSING_TILE_IO) */ |
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DO L=1,narr*nPx*nPy |
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global(L) = xy_buffer_r4(L) |
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ENDDO |
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#endif /* defined(ALLOW_EXCH2) && !defined(MISSING_TILE_IO) */ |
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elseif (filePrec .eq. precFloat64) then |
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read(dUnit,rec=irec) xy_buffer_r8 |
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#ifdef _BYTESWAPIO |
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call MDS_BYTESWAPR8( vec_size, xy_buffer_r8 ) |
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#endif |
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#if defined(ALLOW_EXCH2) && !defined(MISSING_TILE_IO) |
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c |
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#else /* defined(ALLOW_EXCH2) && !defined(MISSING_TILE_IO) */ |
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DO L=1,narr*nPx*nPy |
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global(L) = xy_buffer_r8(L) |
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ENDDO |
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#endif /* defined(ALLOW_EXCH2) && !defined(MISSING_TILE_IO) */ |
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else |
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write(msgbuf,'(a)') |
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& ' MDSREADFIELD: illegal value for filePrec' |
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call print_error( msgbuf, mythid ) |
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stop 'ABNORMAL END: S/R MDSREADFIELD' |
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endif |
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ENDIF |
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_END_MASTER( myThid ) |
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CALL SCATTER_VECTOR( narr,global,local,mythid ) |
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if (arrType .eq. 'RS') then |
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call PASStoRSvector( local,arr,narr,k,nNz,mythid ) |
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elseif (arrType .eq. 'RL') then |
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call PASStoRLvector( local,arr,narr,k,nNz,mythid ) |
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else |
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write(msgbuf,'(a)') |
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& ' MDSREADFIELD: illegal value for arrType' |
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call print_error( msgbuf, mythid ) |
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stop 'ABNORMAL END: S/R MDSREADFIELD' |
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endif |
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|
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ENDDO |
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c ENDDO k=1,nNz |
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|
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_BEGIN_MASTER( myThid ) |
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close( dUnit ) |
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_END_MASTER( myThid ) |
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|
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endif |
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c endif ( useSingleCPUIO ) |
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|
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return |
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end |
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|
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|
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C ================================================================== |
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|
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subroutine passToRSvector(local,arr,narr,k,nNz,mythid) |
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implicit none |
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#include "EEPARAMS.h" |
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#include "SIZE.h" |
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|
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integer narr |
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_RL local(narr) |
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integer i,j,k,l,bi,bj,nNz |
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_RS arr(narr) |
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integer mythid |
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|
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DO L=1,narr |
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arr(L) = local(L) |
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ENDDO |
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|
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return |
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end |
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|
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subroutine passToRLvector(local,arr,narr,k,nNz,mythid) |
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implicit none |
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#include "EEPARAMS.h" |
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#include "SIZE.h" |
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|
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integer narr |
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_RL local(narr) |
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integer i,j,k,l,bi,bj,nNz |
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_RL arr(narr) |
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integer mythid |
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|
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DO L=1,narr |
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arr(L) = local(L) |
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ENDDO |
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|
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return |
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end |
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