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cnh |
1.3 |
C $Header: /u/gcmpack/models/MITgcmUV/eesupp/src/mdsio_gl.F,v 1.2 2001/02/02 21:04:47 adcroft Exp $ |
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C $Name: $ |
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heimbach |
1.1 |
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#include "CPP_OPTIONS.h" |
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C The five "public" routines supplied here are: |
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C |
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C MDSREADFIELD - read model field from direct access global or tiled MDS file |
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C MDSWRITEFIELD - write model field to direct access global or tiled MDS file |
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C MDSFINDUNIT - returns an available (unused) I/O channel |
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C MDSREADVECTOR - read vector from direct access global or tiled MDS file |
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C MDSWRITEVECTOR - write vector to direct access global or tiled MDS file |
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C |
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C all other routines are "private" to these utilities and ought |
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C not be accessed directly from the main code. |
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C |
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C Created: 03/16/99 adcroft@mit.edu |
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C Modified: 03/23/99 adcroft@mit.edu |
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C To work with multiple records |
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C Modified: 03/29/99 eckert@mit.edu |
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C Added arbitrary vector capability |
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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 this relates only to *mdsreadvector* and *mdswritevector* |
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C Modified: 07/28/99 eckert@mit.edu |
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C inserted calls to *print_message* and *print_error* |
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C |
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C To be modified to work with MITgcmuv message routines. |
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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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#ifdef ALLOW_AUTODIFF_TAMC |
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#define _OLD_STATUS 'unknown' |
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#else |
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#define _OLD_STATUS 'old' |
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#endif |
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C======================================================================= |
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SUBROUTINE MDSREADFIELD_GL( |
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I fName, |
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I filePrec, |
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I arrType, |
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I nNz, |
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O arr_gl, |
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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 nNz integer size of third dimension: normally either 1 or Nr |
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C arr RS/RL array to read into, arr(:,:,nNz,:,:) |
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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 MDSREADFIELD 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 precision or declaration of |
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C the array argument must be consistently described by the char*(2) |
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C string arrType, either "RS" or "RL". nNz allows for both 2-D and |
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C 3-D arrays to be handled. nNz=1 implies a 2-D model field and |
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C nNz=Nr implies a 3-D model field. irecord is the record number |
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C to be read and must be >= 1. The file data is stored in |
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C arr *but* the overlaps are *not* updated. ie. An exchange must |
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C be called. This is because the routine is sometimes called from |
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C within a MASTER_THID region. |
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C |
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C Created: 03/16/99 adcroft@mit.edu |
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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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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 nNz |
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_RL arr_gl(sNx,nSx,nPx,sNy,nSy,nPy,nNz) |
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integer irecord |
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integer myThid |
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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 ip,jp,iG,jG,irec,bi,bj,ii,j,k,dUnit,IL |
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logical exst |
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adcroft |
1.2 |
_RL arr(1-oLx:sNx+oLx,1-oLy:sNy+oLy,Nr,nSx,nSy) |
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heimbach |
1.1 |
Real*4 r4seg(sNx) |
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Real*8 r8seg(sNx) |
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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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C Only do I/O if I am the master thread |
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_BEGIN_MASTER( myThid ) |
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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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& ' MDSREADFIELD_GL: 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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& ' MDSREADFIELD_GL: Invalid value for irecord' |
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call print_error( msgbuf, mythid ) |
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stop 'ABNORMAL END: S/R MDSREADFIELD_GL' |
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endif |
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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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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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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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& ' MDSREADFIELD: opening global file: ',dataFName |
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call print_message( msgbuf, standardmessageunit, |
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& SQUEEZE_RIGHT , mythid) |
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stop " xx, adxx, weights and masks are not supposed to be global" |
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endif |
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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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& ' MDSREADFIELD_GL: 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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stop " xx, adxx, weights and masks are not supposed to be global" |
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endif |
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endif |
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C Loop over all processors |
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do jp=1,nPy |
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do ip=1,nPx |
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C Loop over all tiles |
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do bj=1,nSy |
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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+(ip-1)*nsx ! Kludge until unstructered tiles |
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jG=bj+(jp-1)*nsy ! 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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& ' MDSREADFIELD_GL: 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, sNx, 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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& ' MDSREADFIELD_GL: filename: ',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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& ' MDSREADFIELD_GL: File does not exist' |
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call print_error( msgbuf, mythid ) |
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stop 'ABNORMAL END: S/R MDSREADFIELD_GL' |
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endif |
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endif |
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if (fileIsOpen) then |
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do k=1,nNz |
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do j=1,sNy |
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iG = 0 |
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jG = 0 |
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irec=j + sNy*(k-1) + sNy*nNz*(irecord-1) |
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if (filePrec .eq. precFloat32) then |
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read(dUnit,rec=irec) r4seg |
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#ifdef _BYTESWAPIO |
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call MDS_BYTESWAPR4( sNx, r4seg ) |
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#endif |
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if (arrType .eq. 'RS') then |
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call MDS_SEG4toRS( j,bi,bj,k,nNz, r4seg, .TRUE., arr ) |
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elseif (arrType .eq. 'RL') then |
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call MDS_SEG4toRL( j,bi,bj,k,nNz, r4seg, .TRUE., arr ) |
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else |
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write(msgbuf,'(a)') |
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& ' MDSREADFIELD_GL: illegal value for arrType' |
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call print_error( msgbuf, mythid ) |
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stop 'ABNORMAL END: S/R MDSREADFIELD_GL' |
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endif |
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elseif (filePrec .eq. precFloat64) then |
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read(dUnit,rec=irec) r8seg |
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#ifdef _BYTESWAPIO |
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call MDS_BYTESWAPR8( sNx, r8seg ) |
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#endif |
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if (arrType .eq. 'RS') then |
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call MDS_SEG8toRS( j,bi,bj,k,nNz, r8seg, .TRUE., arr ) |
| 222 |
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elseif (arrType .eq. 'RL') then |
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call MDS_SEG8toRL( j,bi,bj,k,nNz, r8seg, .TRUE., arr ) |
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else |
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write(msgbuf,'(a)') |
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& ' MDSREADFIELD_GL: illegal value for arrType' |
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call print_error( msgbuf, mythid ) |
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stop 'ABNORMAL END: S/R MDSREADFIELD_GL' |
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endif |
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else |
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write(msgbuf,'(a)') |
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& ' MDSREADFIELD_GL: illegal value for filePrec' |
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call print_error( msgbuf, mythid ) |
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stop 'ABNORMAL END: S/R MDSREADFIELD_GL' |
| 235 |
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endif |
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do ii=1,sNx |
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arr_gl(ii,bi,ip,j,bj,jp,k)=arr(ii,j,k,bi,bj) |
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enddo |
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C End of j loop |
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enddo |
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C End of k loop |
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enddo |
| 244 |
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if (.NOT. globalFile) then |
| 245 |
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close( dUnit ) |
| 246 |
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fileIsOpen = .FALSE. |
| 247 |
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endif |
| 248 |
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endif |
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C End of bi,bj loops |
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enddo |
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enddo |
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C End of ip,jp loops |
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enddo |
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enddo |
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C If global file was opened then close it |
| 257 |
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if (fileIsOpen .AND. globalFile) then |
| 258 |
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close( dUnit ) |
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fileIsOpen = .FALSE. |
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endif |
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_END_MASTER( myThid ) |
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C ------------------------------------------------------------------ |
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return |
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end |
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C======================================================================= |
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C======================================================================= |
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SUBROUTINE MDSWRITEFIELD_GL( |
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I fName, |
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I filePrec, |
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I arrType, |
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I nNz, |
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I arr_gl, |
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I irecord, |
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I myIter, |
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I myThid ) |
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C |
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C Arguments: |
| 281 |
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C |
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C fName string base name for file to written |
| 283 |
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C filePrec integer number of bits per word in file (32 or 64) |
| 284 |
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C arrType char(2) declaration of "arr": either "RS" or "RL" |
| 285 |
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C nNz integer size of third dimension: normally either 1 or Nr |
| 286 |
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C arr RS/RL array to write, arr(:,:,nNz,:,:) |
| 287 |
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C irecord integer record number to read |
| 288 |
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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 MDSWRITEFIELD creates either a file of the form "fName.data" and |
| 292 |
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C "fName.meta" if the logical flag "globalFile" is set true. Otherwise |
| 293 |
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C it creates MDS tiled files of the form "fName.xxx.yyy.data" and |
| 294 |
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C "fName.xxx.yyy.meta". A meta-file is always created. |
| 295 |
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C Currently, the meta-files are not read because it is difficult |
| 296 |
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C to parse files in fortran. We should read meta information before |
| 297 |
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C adding records to an existing multi-record file. |
| 298 |
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C The precision of the file is decsribed by filePrec, set either |
| 299 |
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C to floatPrec32 or floatPrec64. The precision or declaration of |
| 300 |
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C the array argument must be consistently described by the char*(2) |
| 301 |
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C string arrType, either "RS" or "RL". nNz allows for both 2-D and |
| 302 |
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C 3-D arrays to be handled. nNz=1 implies a 2-D model field and |
| 303 |
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C nNz=Nr implies a 3-D model field. irecord is the record number |
| 304 |
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C to be read and must be >= 1. NOTE: It is currently assumed that |
| 305 |
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C the highest record number in the file was the last record written. |
| 306 |
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C Nor is there a consistency check between the routine arguments and file. |
| 307 |
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C ie. if your write record 2 after record 4 the meta information |
| 308 |
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C will record the number of records to be 2. This, again, is because |
| 309 |
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C we have read the meta information. To be fixed. |
| 310 |
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C |
| 311 |
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C Created: 03/16/99 adcroft@mit.edu |
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C |
| 313 |
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C Changed: 05/31/00 heimbach@mit.edu |
| 314 |
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C open(dUnit, ..., status='old', ... -> status='unknown' |
| 315 |
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| 316 |
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implicit none |
| 317 |
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C Global variables / common blocks |
| 318 |
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#include "SIZE.h" |
| 319 |
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#include "EEPARAMS.h" |
| 320 |
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#include "PARAMS.h" |
| 321 |
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| 322 |
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C Routine arguments |
| 323 |
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character*(*) fName |
| 324 |
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integer filePrec |
| 325 |
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character*(2) arrType |
| 326 |
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integer nNz |
| 327 |
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cph( |
| 328 |
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cph Real arr(*) |
| 329 |
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_RL arr_gl(sNx,nSx,nPx,sNy,nSy,nPy,nNz) |
| 330 |
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cph) |
| 331 |
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integer irecord |
| 332 |
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integer myIter |
| 333 |
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integer myThid |
| 334 |
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C Functions |
| 335 |
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integer ILNBLNK |
| 336 |
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integer MDS_RECLEN |
| 337 |
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C Local variables |
| 338 |
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character*(80) dataFName,metaFName |
| 339 |
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integer ip,jp,iG,jG,irec,bi,bj,ii,j,k,dUnit,IL |
| 340 |
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Real*4 r4seg(sNx) |
| 341 |
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Real*8 r8seg(sNx) |
| 342 |
adcroft |
1.2 |
_RL arr(1-oLx:sNx+oLx,1-oLy:sNy+oLy,Nr,nSx,nSy) |
| 343 |
heimbach |
1.1 |
integer dimList(3,3),ndims |
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integer length_of_rec |
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logical fileIsOpen |
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character*(max_len_mbuf) msgbuf |
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C ------------------------------------------------------------------ |
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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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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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& ' MDSWRITEFIELD_GL: 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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& ' MDSWRITEFIELD_GL: invalid value for irecord' |
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call print_error( msgbuf, mythid ) |
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stop 'ABNORMAL END: S/R MDSWRITEFIELD_GL' |
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endif |
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C Assume nothing |
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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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call MDSFINDUNIT( dUnit, mythid ) |
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C Loop over all processors |
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do jp=1,nPy |
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do ip=1,nPx |
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C Loop over all tiles |
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do bj=1,nSy |
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do bi=1,nSx |
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C If we are writing to a tiled MDS file then we open each one here |
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iG=bi+(ip-1)*nsx ! Kludge until unstructered tiles |
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jG=bj+(jp-1)*nsy ! 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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if (irecord .EQ. 1) then |
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length_of_rec=MDS_RECLEN( filePrec, sNx, mythid ) |
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open( dUnit, file=dataFName, status=_NEW_STATUS, |
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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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length_of_rec=MDS_RECLEN( filePrec, sNx, mythid ) |
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open( dUnit, file=dataFName, status=_OLD_STATUS, |
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& access='direct', recl=length_of_rec ) |
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fileIsOpen=.TRUE. |
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endif |
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if (fileIsOpen) then |
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do k=1,nNz |
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do j=1,sNy |
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do ii=1,sNx |
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arr(ii,j,k,bi,bj)=arr_gl(ii,bi,ip,j,bj,jp,k) |
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enddo |
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iG = 0 |
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jG = 0 |
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irec=j + sNy*(k-1) + sNy*nNz*(irecord-1) |
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if (filePrec .eq. precFloat32) then |
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if (arrType .eq. 'RS') then |
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call MDS_SEG4toRS( j,bi,bj,k,nNz, r4seg, .FALSE., arr ) |
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elseif (arrType .eq. 'RL') then |
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call MDS_SEG4toRL( j,bi,bj,k,nNz, r4seg, .FALSE., arr ) |
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else |
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write(msgbuf,'(a)') |
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& ' MDSWRITEFIELD_GL: illegal value for arrType' |
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call print_error( msgbuf, mythid ) |
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stop 'ABNORMAL END: S/R MDSWRITEFIELD_GL' |
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endif |
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#ifdef _BYTESWAPIO |
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call MDS_BYTESWAPR4( sNx, r4seg ) |
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#endif |
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write(dUnit,rec=irec) r4seg |
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elseif (filePrec .eq. precFloat64) then |
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if (arrType .eq. 'RS') then |
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call MDS_SEG8toRS( j,bi,bj,k,nNz, r8seg, .FALSE., arr ) |
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elseif (arrType .eq. 'RL') then |
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call MDS_SEG8toRL( j,bi,bj,k,nNz, r8seg, .FALSE., arr ) |
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else |
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write(msgbuf,'(a)') |
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& ' MDSWRITEFIELD_GL: illegal value for arrType' |
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call print_error( msgbuf, mythid ) |
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stop 'ABNORMAL END: S/R MDSWRITEFIELD_GL' |
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endif |
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#ifdef _BYTESWAPIO |
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call MDS_BYTESWAPR8( sNx, r8seg ) |
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#endif |
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write(dUnit,rec=irec) r8seg |
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else |
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write(msgbuf,'(a)') |
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& ' MDSWRITEFIELD_GL: illegal value for filePrec' |
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call print_error( msgbuf, mythid ) |
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stop 'ABNORMAL END: S/R MDSWRITEFIELD_GL' |
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endif |
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C End of j loop |
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enddo |
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C End of k loop |
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enddo |
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else |
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write(msgbuf,'(a)') |
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& ' MDSWRITEFIELD_GL: I should never get to this point' |
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call print_error( msgbuf, mythid ) |
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stop 'ABNORMAL END: S/R MDSWRITEFIELD_GL' |
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endif |
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C If we were writing to a tiled MDS file then we close it here |
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if (fileIsOpen) then |
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close( dUnit ) |
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fileIsOpen = .FALSE. |
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endif |
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C Create meta-file for each tile if we are tiling |
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iG=bi+(ip-1)*nsx ! Kludge until unstructered tiles |
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jG=bj+(jp-1)*nsy ! Kludge until unstructered tiles |
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write(metaFname(1:80),'(2a,i3.3,a,i3.3,a)') |
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& fName(1:IL),'.',iG,'.',jG,'.meta' |
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dimList(1,1)=Nx |
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dimList(2,1)=((ip-1)*nSx+(bi-1))*sNx+1 |
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dimList(3,1)=((ip-1)*nSx+bi)*sNx |
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dimList(1,2)=Ny |
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dimList(2,2)=((jp-1)*nSy+(bj-1))*sNy+1 |
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dimList(3,2)=((jp-1)*nSy+bj)*sNy |
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dimList(1,3)=Nr |
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dimList(2,3)=1 |
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dimList(3,3)=Nr |
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ndims=3 |
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if (nNz .EQ. 1) ndims=2 |
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call MDSWRITEMETA( metaFName, dataFName, |
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& filePrec, ndims, dimList, irecord, myIter, mythid ) |
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C End of bi,bj loops |
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enddo |
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enddo |
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C End of ip,jp loops |
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enddo |
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enddo |
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_END_MASTER( myThid ) |
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C ------------------------------------------------------------------ |
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return |
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end |
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C======================================================================= |
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