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C $Header: /u/gcmpack/models/MITgcmUV/eesupp/src/mdsio.F,v 1.1 1999/05/05 18:32:34 adcroft Exp $ |
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|
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#include "CPP_OPTIONS.h" |
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|
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C The three "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 |
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|
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#undef SAFE_IO |
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|
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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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|
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C======================================================================= |
32 |
SUBROUTINE MDSREADFIELD( |
33 |
I fName, |
34 |
I filePrec, |
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I arrType, |
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I nNz, |
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O arr, |
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I irecord, |
39 |
I myThid ) |
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C |
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C Arguments: |
42 |
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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|
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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 nNz |
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Real arr(*) |
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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 iG,jG,irec,bi,bj,j,k,dUnit,IL |
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logical exst |
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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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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(0,'(a,i)') 'MDSREADFIELD: argument irecord = ',irecord |
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stop 'MDSREADFIELD: *ERROR* Invalid value for irecord' |
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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 ) |
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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(0,'(2a)') 'MDSREADFIELD: opening global file: ',dataFName |
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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(0,'(2a)') 'MDSREADFIELD: opening global file: ',dataFName |
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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, sNx ) |
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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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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+(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(0,'(2a)') 'MDSREADFIELD: opening file: ',dataFName |
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length_of_rec=MDS_RECLEN( filePrec, sNx ) |
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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(0,*) 'MDSREADFIELD: filename=',dataFName |
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stop 'MDSREADFIELD: File does not exist' |
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C stop 'MDSREADFIELD: un-active tiles not implemented yet' |
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endif |
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endif |
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|
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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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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) + nSx*nPx*(jG+j-1) + nSx*nPx*Ny*(k-1) |
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& + nSx*nPx*Ny*nNz*(irecord-1) |
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else |
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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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endif |
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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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stop 'MDSREADFIELD: illegal value for arrType' |
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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 ) |
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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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stop 'MDSREADFIELD: illegal value for arrType' |
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endif |
201 |
else |
202 |
stop 'MDSREADFIELD: illegal value for filePrec' |
203 |
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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if (.NOT. globalFile) then |
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close( dUnit ) |
210 |
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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enddo |
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enddo |
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|
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C If global file was opened then close it |
218 |
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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C======================================================================= |
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|
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C======================================================================= |
231 |
SUBROUTINE MDSWRITEFIELD( |
232 |
I fName, |
233 |
I filePrec, |
234 |
I globalFile, |
235 |
I arrType, |
236 |
I nNz, |
237 |
I arr, |
238 |
I irecord, |
239 |
I myIter, |
240 |
I myThid ) |
241 |
C |
242 |
C Arguments: |
243 |
C |
244 |
C fName string base name for file to written |
245 |
C filePrec integer number of bits per word in file (32 or 64) |
246 |
C globalFile logical selects between writing a global or tiled file |
247 |
C arrType char(2) declaration of "arr": either "RS" or "RL" |
248 |
C nNz integer size of third dimension: normally either 1 or Nr |
249 |
C arr RS/RL array to write, arr(:,:,nNz,:,:) |
250 |
C irecord integer record number to read |
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C myIter integer time step number |
252 |
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 |
255 |
C "fName.meta" if the logical flag "globalFile" is set true. Otherwise |
256 |
C it creates MDS tiled files of the form "fName.xxx.yyy.data" and |
257 |
C "fName.xxx.yyy.meta". A meta-file is always created. |
258 |
C Currently, the meta-files are not read because it is difficult |
259 |
C to parse files in fortran. We should read meta information before |
260 |
C adding records to an existing multi-record file. |
261 |
C The precision of the file is decsribed by filePrec, set either |
262 |
C to floatPrec32 or floatPrec64. The precision or declaration of |
263 |
C the array argument must be consistently described by the char*(2) |
264 |
C string arrType, either "RS" or "RL". nNz allows for both 2-D and |
265 |
C 3-D arrays to be handled. nNz=1 implies a 2-D model field and |
266 |
C nNz=Nr implies a 3-D model field. irecord is the record number |
267 |
C to be read and must be >= 1. NOTE: It is currently assumed that |
268 |
C the highest record number in the file was the last record written. |
269 |
C Nor is there a consistency check between the routine arguments and file. |
270 |
C ie. if your write record 2 after record 4 the meta information |
271 |
C will record the number of records to be 2. This, again, is because |
272 |
C we have read the meta information. To be fixed. |
273 |
C |
274 |
C Created: 03/16/99 adcroft@mit.edu |
275 |
|
276 |
implicit none |
277 |
C Global variables / common blocks |
278 |
#include "SIZE.h" |
279 |
#include "EEPARAMS.h" |
280 |
#include "PARAMS.h" |
281 |
|
282 |
C Routine arguments |
283 |
character*(*) fName |
284 |
integer filePrec |
285 |
logical globalFile |
286 |
character*(2) arrType |
287 |
integer nNz |
288 |
Real arr(*) |
289 |
integer irecord |
290 |
integer myIter |
291 |
integer myThid |
292 |
C Functions |
293 |
integer ILNBLNK |
294 |
integer MDS_RECLEN |
295 |
C Local variables |
296 |
character*(80) dataFName,metaFName |
297 |
integer iG,jG,irec,bi,bj,j,k,dUnit,IL |
298 |
Real*4 r4seg(sNx) |
299 |
Real*8 r8seg(sNx) |
300 |
integer dimList(3,3),ndims |
301 |
integer length_of_rec |
302 |
logical fileIsOpen |
303 |
C ------------------------------------------------------------------ |
304 |
|
305 |
C Only do I/O if I am the master thread |
306 |
_BEGIN_MASTER( myThid ) |
307 |
|
308 |
C Record number must be >= 1 |
309 |
if (irecord .LT. 1) then |
310 |
write(0,'(a,i)') 'MDSWRITEFIELD: argument irecord = ',irecord |
311 |
stop 'MDSWRITEFIELD: *ERROR* Invalid value for irecord' |
312 |
endif |
313 |
|
314 |
C Assume nothing |
315 |
fileIsOpen=.FALSE. |
316 |
IL=ILNBLNK( fName ) |
317 |
|
318 |
C Assign a free unit number as the I/O channel for this routine |
319 |
call MDSFINDUNIT( dUnit ) |
320 |
|
321 |
C If we are writing to a global file then we open it here |
322 |
if (globalFile) then |
323 |
write(dataFname(1:80),'(2a)') fName(1:IL),'.data' |
324 |
if (irecord .EQ. 1) then |
325 |
length_of_rec=MDS_RECLEN( filePrec, sNx ) |
326 |
open( dUnit, file=dataFName, status=_NEW_STATUS, |
327 |
& access='direct', recl=length_of_rec ) |
328 |
fileIsOpen=.TRUE. |
329 |
else |
330 |
length_of_rec=MDS_RECLEN( filePrec, sNx ) |
331 |
open( dUnit, file=dataFName, status='old', |
332 |
& access='direct', recl=length_of_rec ) |
333 |
fileIsOpen=.TRUE. |
334 |
endif |
335 |
endif |
336 |
|
337 |
C Loop over all tiles |
338 |
do bj=1,nSy |
339 |
do bi=1,nSx |
340 |
C If we are writing to a tiled MDS file then we open each one here |
341 |
if (.NOT. globalFile) then |
342 |
iG=bi+(myXGlobalLo-1)/sNx ! Kludge until unstructered tiles |
343 |
jG=bj+(myYGlobalLo-1)/sNy ! Kludge until unstructered tiles |
344 |
write(dataFname(1:80),'(2a,i3.3,a,i3.3,a)') |
345 |
& fName(1:IL),'.',iG,'.',jG,'.data' |
346 |
if (irecord .EQ. 1) then |
347 |
length_of_rec=MDS_RECLEN( filePrec, sNx ) |
348 |
open( dUnit, file=dataFName, status=_NEW_STATUS, |
349 |
& access='direct', recl=length_of_rec ) |
350 |
fileIsOpen=.TRUE. |
351 |
else |
352 |
length_of_rec=MDS_RECLEN( filePrec, sNx ) |
353 |
open( dUnit, file=dataFName, status='old', |
354 |
& access='direct', recl=length_of_rec ) |
355 |
fileIsOpen=.TRUE. |
356 |
endif |
357 |
endif |
358 |
if (fileIsOpen) then |
359 |
do k=1,nNz |
360 |
do j=1,sNy |
361 |
if (globalFile) then |
362 |
iG = myXGlobalLo-1+(bi-1)*sNx |
363 |
jG = myYGlobalLo-1+(bj-1)*sNy |
364 |
irec=1+INT(iG/sNx)+nSx*nPx*(jG+j-1)+nSx*nPx*Ny*(k-1) |
365 |
& +nSx*nPx*Ny*nNz*(irecord-1) |
366 |
else |
367 |
iG = 0 |
368 |
jG = 0 |
369 |
irec=j + sNy*(k-1) + sNy*nNz*(irecord-1) |
370 |
endif |
371 |
if (filePrec .eq. precFloat32) then |
372 |
if (arrType .eq. 'RS') then |
373 |
call MDS_SEG4toRS( j,bi,bj,k,nNz, r4seg, .FALSE., arr ) |
374 |
elseif (arrType .eq. 'RL') then |
375 |
call MDS_SEG4toRL( j,bi,bj,k,nNz, r4seg, .FALSE., arr ) |
376 |
else |
377 |
stop 'MDSWRITEFIELD: illegal value for arrType' |
378 |
endif |
379 |
#ifdef _BYTESWAPIO |
380 |
call MDS_BYTESWAPR4( sNx, r4seg ) |
381 |
#endif |
382 |
write(dUnit,rec=irec) r4seg |
383 |
elseif (filePrec .eq. precFloat64) then |
384 |
if (arrType .eq. 'RS') then |
385 |
call MDS_SEG8toRS( j,bi,bj,k,nNz, r8seg, .FALSE., arr ) |
386 |
elseif (arrType .eq. 'RL') then |
387 |
call MDS_SEG8toRL( j,bi,bj,k,nNz, r8seg, .FALSE., arr ) |
388 |
else |
389 |
stop 'MDSWRITEFIELD: illegal value for arrType' |
390 |
endif |
391 |
#ifdef _BYTESWAPIO |
392 |
call MDS_BYTESWAPR8( sNx, r8seg ) |
393 |
#endif |
394 |
write(dUnit,rec=irec) r8seg |
395 |
else |
396 |
stop 'MDSWRITEFIELD: illegal value for filePrec' |
397 |
endif |
398 |
C End of j loop |
399 |
enddo |
400 |
C End of k loop |
401 |
enddo |
402 |
else |
403 |
stop 'MDSWRITEFIELD: I should not ever get to this point' |
404 |
endif |
405 |
C If we were writing to a tiled MDS file then we close it here |
406 |
if (fileIsOpen .AND. (.NOT. globalFile)) then |
407 |
close( dUnit ) |
408 |
fileIsOpen = .FALSE. |
409 |
endif |
410 |
C Create meta-file for each tile if we are tiling |
411 |
if (.NOT. globalFile) then |
412 |
write(metaFname(1:80),'(2a,i3.3,a,i3.3,a)') |
413 |
& fName(1:IL),'.',bi,'.',bj,'.meta' |
414 |
dimList(1,1)=Nx |
415 |
dimList(2,1)=myXGlobalLo+(bi-1)*sNx |
416 |
dimList(3,1)=myXGlobalLo+bi*sNx-1 |
417 |
dimList(1,2)=Ny |
418 |
dimList(2,2)=myYGlobalLo+(bj-1)*sNy |
419 |
dimList(3,2)=myYGlobalLo+bj*sNy-1 |
420 |
dimList(1,3)=Nr |
421 |
dimList(2,3)=1 |
422 |
dimList(3,3)=Nr |
423 |
ndims=3 |
424 |
if (nNz .EQ. 1) ndims=2 |
425 |
call MDSWRITEMETA( metaFName, dataFName, |
426 |
& filePrec, ndims, dimList, irecord, myIter ) |
427 |
endif |
428 |
C End of bi,bj loops |
429 |
enddo |
430 |
enddo |
431 |
|
432 |
C If global file was opened then close it |
433 |
if (fileIsOpen .AND. globalFile) then |
434 |
close( dUnit ) |
435 |
fileIsOpen = .FALSE. |
436 |
endif |
437 |
|
438 |
C Create meta-file for the global-file |
439 |
if (globalFile) then |
440 |
C We can't do this operation using threads (yet) because of the |
441 |
C "barrier" at the next step. The barrier could be removed but |
442 |
C at the cost of "safe" distributed I/O. |
443 |
if (nThreads.NE.1) then |
444 |
write(0,*) |
445 |
& 'MDSWRITEFIELD: A threads version of this routine does not exist' |
446 |
write(0,*) 'MDSWRITEFIELD: This needs to be fixed...' |
447 |
write(0,*) 'MDSWRITEFIELD: nThreads = ',nThreads |
448 |
stop 'MDSWRITEFIELD: Stopping because you are using threads' |
449 |
endif |
450 |
C We put a barrier here to ensure that all processes have finished |
451 |
C writing their data before we update the meta-file |
452 |
_BARRIER |
453 |
write(metaFName(1:80),'(2a)') fName(1:IL),'.meta' |
454 |
dimList(1,1)=Nx |
455 |
dimList(2,1)=1 |
456 |
dimList(3,1)=Nx |
457 |
dimList(1,2)=Ny |
458 |
dimList(2,2)=1 |
459 |
dimList(3,2)=Ny |
460 |
dimList(1,3)=Nr |
461 |
dimList(2,3)=1 |
462 |
dimList(3,3)=Nr |
463 |
ndims=3 |
464 |
if (nNz .EQ. 1) ndims=2 |
465 |
call MDSWRITEMETA( metaFName, dataFName, |
466 |
& filePrec, ndims, dimList, irecord, myIter ) |
467 |
fileIsOpen=.TRUE. |
468 |
endif |
469 |
|
470 |
_END_MASTER( myThid ) |
471 |
|
472 |
C ------------------------------------------------------------------ |
473 |
return |
474 |
end |
475 |
C======================================================================= |
476 |
|
477 |
C======================================================================= |
478 |
subroutine MDS_SEG4toRS( j,bi,bj,k,nNz, seg, copyTo, arr ) |
479 |
C IN: |
480 |
C j,bi,bj,k integer - indices to array "arr" |
481 |
C nNz integer - K dimension of array "arr" |
482 |
C seg Real*4 - 1-D vector of length sNx |
483 |
C OUT: |
484 |
C arr _RS - model tiled array |
485 |
C |
486 |
C Created: 03/20/99 adcroft@mit.edu |
487 |
|
488 |
implicit none |
489 |
C Global variables / common blocks |
490 |
#include "SIZE.h" |
491 |
|
492 |
C Arguments |
493 |
integer j,bi,bj,k,nNz |
494 |
_RS arr(1-oLx:sNx+oLx,1-oLy:sNy+oLy,nNz,nSx,nSy) |
495 |
logical copyTo |
496 |
Real*4 seg(sNx) |
497 |
C Local |
498 |
integer ii |
499 |
|
500 |
C ------------------------------------------------------------------ |
501 |
|
502 |
if (copyTo) then |
503 |
do ii=1,sNx |
504 |
arr(ii,j,k,bi,bj)=seg(ii) |
505 |
enddo |
506 |
else |
507 |
do ii=1,sNx |
508 |
seg(ii)=arr(ii,j,k,bi,bj) |
509 |
enddo |
510 |
endif |
511 |
|
512 |
C ------------------------------------------------------------------ |
513 |
return |
514 |
end |
515 |
C======================================================================= |
516 |
|
517 |
C======================================================================= |
518 |
subroutine MDS_SEG4toRL( j,bi,bj,k,nNz, seg, copyTo, arr ) |
519 |
C IN: |
520 |
C j,bi,bj,k integer - indices to array "arr" |
521 |
C nNz integer - K dimension of array "arr" |
522 |
C seg Real*4 - 1-D vector of length sNx |
523 |
C OUT: |
524 |
C arr _RL - model tiled array |
525 |
C |
526 |
C Created: 03/20/99 adcroft@mit.edu |
527 |
|
528 |
implicit none |
529 |
C Global variables / common blocks |
530 |
#include "SIZE.h" |
531 |
|
532 |
C Arguments |
533 |
integer j,bi,bj,k,nNz |
534 |
_RL arr(1-oLx:sNx+oLx,1-oLy:sNy+oLy,nNz,nSx,nSy) |
535 |
logical copyTo |
536 |
Real*4 seg(sNx) |
537 |
C Local |
538 |
integer ii |
539 |
C ------------------------------------------------------------------ |
540 |
if (copyTo) then |
541 |
do ii=1,sNx |
542 |
arr(ii,j,k,bi,bj)=seg(ii) |
543 |
enddo |
544 |
else |
545 |
do ii=1,sNx |
546 |
seg(ii)=arr(ii,j,k,bi,bj) |
547 |
enddo |
548 |
endif |
549 |
C ------------------------------------------------------------------ |
550 |
return |
551 |
end |
552 |
C======================================================================= |
553 |
|
554 |
C======================================================================= |
555 |
subroutine MDS_SEG8toRS( j,bi,bj,k,nNz, seg, copyTo, arr ) |
556 |
C IN: |
557 |
C j,bi,bj,k integer - indices to array "arr" |
558 |
C nNz integer - K dimension of array "arr" |
559 |
C seg Real*8 - 1-D vector of length sNx |
560 |
C OUT: |
561 |
C arr _RS - model tiled array |
562 |
C |
563 |
C Created: 03/20/99 adcroft@mit.edu |
564 |
|
565 |
implicit none |
566 |
C Global variables / common blocks |
567 |
#include "SIZE.h" |
568 |
|
569 |
C Arguments |
570 |
integer j,bi,bj,k,nNz |
571 |
_RS arr(1-oLx:sNx+oLx,1-oLy:sNy+oLy,nNz,nSx,nSy) |
572 |
logical copyTo |
573 |
Real*8 seg(sNx) |
574 |
C Local |
575 |
integer ii |
576 |
C ------------------------------------------------------------------ |
577 |
if (copyTo) then |
578 |
do ii=1,sNx |
579 |
arr(ii,j,k,bi,bj)=seg(ii) |
580 |
enddo |
581 |
else |
582 |
do ii=1,sNx |
583 |
seg(ii)=arr(ii,j,k,bi,bj) |
584 |
enddo |
585 |
endif |
586 |
C ------------------------------------------------------------------ |
587 |
return |
588 |
end |
589 |
C======================================================================= |
590 |
|
591 |
C======================================================================= |
592 |
subroutine MDS_SEG8toRL( j,bi,bj,k,nNz, seg, copyTo, arr ) |
593 |
C IN: |
594 |
C j,bi,bj,k integer - indices to array "arr" |
595 |
C nNz integer - K dimension of array "arr" |
596 |
C seg Real*8 - 1-D vector of length sNx |
597 |
C OUT: |
598 |
C arr _RL - model tiled array |
599 |
C |
600 |
C Created: 03/20/99 adcroft@mit.edu |
601 |
|
602 |
implicit none |
603 |
C Global variables / common blocks |
604 |
#include "SIZE.h" |
605 |
|
606 |
C Arguments |
607 |
integer j,bi,bj,k,nNz |
608 |
_RL arr(1-oLx:sNx+oLx,1-oLy:sNy+oLy,nNz,nSx,nSy) |
609 |
logical copyTo |
610 |
Real*8 seg(sNx) |
611 |
C Local |
612 |
integer ii |
613 |
C ------------------------------------------------------------------ |
614 |
if (copyTo) then |
615 |
do ii=1,sNx |
616 |
arr(ii,j,k,bi,bj)=seg(ii) |
617 |
enddo |
618 |
else |
619 |
do ii=1,sNx |
620 |
seg(ii)=arr(ii,j,k,bi,bj) |
621 |
enddo |
622 |
endif |
623 |
C ------------------------------------------------------------------ |
624 |
return |
625 |
end |
626 |
C======================================================================= |
627 |
|
628 |
C======================================================================= |
629 |
subroutine MDSWRITEMETA( |
630 |
I mFileName, |
631 |
I dFileName, |
632 |
I filePrec, |
633 |
I ndims, |
634 |
I dimList, |
635 |
I nrecords, |
636 |
I myIter ) |
637 |
|
638 |
C IN: |
639 |
C mFileName string - complete name of meta-file |
640 |
C ndims integer - number of dimensions |
641 |
C dimList integer - array of dimensions, etc. |
642 |
C nrecords integer - record number |
643 |
C myIter integer - time-step number |
644 |
C OUT: |
645 |
C |
646 |
C Created: 03/20/99 adcroft@mit.edu |
647 |
|
648 |
implicit none |
649 |
C Arguments |
650 |
character*(*) mFileName |
651 |
character*(*) dFileName |
652 |
integer filePrec |
653 |
integer ndims |
654 |
integer dimList(3,ndims) |
655 |
integer nrecords |
656 |
integer myIter |
657 |
|
658 |
C Global variables / common blocks |
659 |
#include "SIZE.h" |
660 |
#include "EEPARAMS.h" |
661 |
#include "PARAMS.h" |
662 |
|
663 |
C Functions |
664 |
integer ILNBLNK |
665 |
C Local |
666 |
integer i,ii,mUnit |
667 |
logical ex |
668 |
C ------------------------------------------------------------------ |
669 |
|
670 |
C We should *read* the met-file if it exists to check |
671 |
C that the information we are writing is consistent |
672 |
C with the current contents |
673 |
inquire( file=mFileName, exist=ex ) |
674 |
C However, it is bloody difficult to parse files |
675 |
C in fortran so someone else can do this. |
676 |
C For now, we will assume everything is ok |
677 |
C and that the last record is written to the |
678 |
C last consecutive record in the file. |
679 |
|
680 |
C Assign a free unit number as the I/O channel for this subroutine |
681 |
call MDSFINDUNIT( mUnit ) |
682 |
|
683 |
C Open meta-file |
684 |
open( mUnit, file=mFileName, status='unknown', |
685 |
& form='formatted' ) |
686 |
|
687 |
C Write the number of dimensions |
688 |
write(mUnit,'(x,a,i3,a)') 'nDims = [ ',ndims,' ];' |
689 |
|
690 |
C For each dimension, write the following: |
691 |
C 1 global size (ie. the size of the global dimension of all files) |
692 |
C 2 global start (ie. the global position of the start of this file) |
693 |
C 3 global end (ie. the global position of the end of this file) |
694 |
|
695 |
write(mUnit,'(x,a)') 'dimList = [' |
696 |
do ii=1,ndims |
697 |
if (ii.lt.ndims) then |
698 |
write(mUnit,'(10x,3(i5,","))') (dimList(i,ii),i=1,3) |
699 |
else |
700 |
write(mUnit,'(10x,i5,",",i5,",",i5)') (dimList(i,ii),i=1,3) |
701 |
endif |
702 |
enddo |
703 |
write(mUnit,'(10x,a)') '];' |
704 |
|
705 |
C Record the precision of the file |
706 |
if (filePrec .EQ. precFloat32) then |
707 |
write(mUnit,'(x,a)') "format = [ 'float32' ];" |
708 |
elseif (filePrec .EQ. precFloat64) then |
709 |
write(mUnit,'(x,a)') "format = [ 'float64' ];" |
710 |
else |
711 |
stop 'MDSWRITEMETA: invalid filePrec' |
712 |
endif |
713 |
|
714 |
C Record the current record number |
715 |
C This is a proxy for the actual number of records in the file. |
716 |
C If we could read the file then we could do this properly. |
717 |
write(mUnit,'(x,a,i5,a)') 'nrecords = [ ',nrecords,' ];' |
718 |
|
719 |
C Record the file-name for the binary data |
720 |
Cveto ii=ILNBLNK( dFileName ) |
721 |
Cveto write(mUnit,'(x,3a)') 'binarydatafile = [ ',dFileName(1:ii),' ];' |
722 |
|
723 |
C Write the integer time (integer iteration number) for later record |
724 |
C keeping. If the timestep number is less than 0 then we assume |
725 |
C that the information is superfluous and do not write it. |
726 |
if (myIter .ge. 0) |
727 |
& write(mUnit,'(x,a,i8,a)') 'timeStepNumber = [ ',myIter,' ];' |
728 |
|
729 |
C Close meta-file |
730 |
close(mUnit) |
731 |
|
732 |
C ------------------------------------------------------------------ |
733 |
return |
734 |
end |
735 |
C======================================================================= |
736 |
|
737 |
C======================================================================= |
738 |
subroutine MDSFINDUNIT( iounit ) |
739 |
C OUT: |
740 |
C iounit integer - unit number |
741 |
C |
742 |
C MDSFINDUNIT returns a valid, unused unit number for f77 I/O |
743 |
C The routine stops the program is an error occurs in the process |
744 |
C of searching the I/O channels. |
745 |
C |
746 |
C Created: 03/20/99 adcroft@mit.edu |
747 |
|
748 |
implicit none |
749 |
C Arguments |
750 |
integer iounit |
751 |
C Local |
752 |
integer ii |
753 |
logical op |
754 |
integer ios |
755 |
C ------------------------------------------------------------------ |
756 |
|
757 |
C Sweep through a valid range of unit numbers |
758 |
iounit=-1 |
759 |
do ii=9,99 |
760 |
if (iounit.eq.-1) then |
761 |
inquire(unit=ii,iostat=ios,opened=op) |
762 |
if (ios.ne.0) then |
763 |
write(0,*) 'MDSFINDUNIT: inquiring unit number =',ii |
764 |
stop 'MDSFINDUNIT: inquire statement failed!' |
765 |
endif |
766 |
if (.NOT. op) then |
767 |
iounit=ii |
768 |
endif |
769 |
endif |
770 |
enddo |
771 |
|
772 |
C Was there an available unit number |
773 |
if (iounit.eq.-1) then |
774 |
stop 'MDSFINDUNIT: could not find an available unit number!' |
775 |
endif |
776 |
|
777 |
C ------------------------------------------------------------------ |
778 |
return |
779 |
end |
780 |
C======================================================================= |
781 |
|
782 |
C======================================================================= |
783 |
integer function MDS_RECLEN( filePrec, nnn ) |
784 |
C IN: |
785 |
C filePrec integer - precision of file in bits |
786 |
C nnn integer - number of elements in record |
787 |
C OUT: |
788 |
C MDS_RECLEN integer - appropriate length of record in bytes or words |
789 |
C |
790 |
C Created: 03/29/99 eckert@mit.edu + adcroft@mit.edu |
791 |
|
792 |
implicit none |
793 |
C Arguments |
794 |
integer filePrec |
795 |
integer nnn |
796 |
C Global variables |
797 |
#include "SIZE.h" |
798 |
#include "EEPARAMS.h" |
799 |
#include "PARAMS.h" |
800 |
C Local |
801 |
C ------------------------------------------------------------------ |
802 |
|
803 |
if (filePrec .EQ. precFloat32) then |
804 |
MDS_RECLEN=nnn*WORDLENGTH |
805 |
elseif (filePrec .EQ. precFloat64) then |
806 |
MDS_RECLEN=nnn*WORDLENGTH*2 |
807 |
else |
808 |
write(0,*) 'MDS_RECLEN: filePrec = ',filePrec |
809 |
stop 'MDS_RECLEN: Illegal value for filePrec' |
810 |
endif |
811 |
|
812 |
C ------------------------------------------------------------------ |
813 |
return |
814 |
end |
815 |
C======================================================================= |
816 |
|
817 |
C======================================================================= |
818 |
SUBROUTINE MDSREADVECTOR( |
819 |
I fName, |
820 |
I filePrec, |
821 |
I arrType, |
822 |
I narr, |
823 |
O arr, |
824 |
I irecord, |
825 |
I myThid ) |
826 |
C |
827 |
C Arguments: |
828 |
C |
829 |
C fName string base name for file to read |
830 |
C filePrec integer number of bits per word in file (32 or 64) |
831 |
C arrType char(2) declaration of "arr": either "RS" or "RL" |
832 |
C narr integer size of third dimension: normally either 1 or Nr |
833 |
C arr RS/RL array to read into, arr(narr) |
834 |
C irecord integer record number to read |
835 |
C myThid integer thread identifier |
836 |
C |
837 |
C Created: 03/26/99 eckert@mit.edu |
838 |
C Modified: 03/29/99 adcroft@mit.edu + eckert@mit.edu |
839 |
C Fixed to work work with _RS and _RL declarations |
840 |
|
841 |
implicit none |
842 |
C Global variables / common blocks |
843 |
#include "SIZE.h" |
844 |
#include "EEPARAMS.h" |
845 |
#include "PARAMS.h" |
846 |
|
847 |
C Routine arguments |
848 |
character*(*) fName |
849 |
integer filePrec |
850 |
character*(2) arrType |
851 |
integer narr |
852 |
Real arr(narr) |
853 |
integer irecord |
854 |
integer myThid |
855 |
C Functions |
856 |
integer ILNBLNK |
857 |
integer MDS_RECLEN |
858 |
C Local variables |
859 |
character*(80) dataFName |
860 |
integer iG,jG,irec,bi,bj,dUnit,IL |
861 |
logical exst |
862 |
logical globalFile,fileIsOpen |
863 |
integer length_of_rec |
864 |
C ------------------------------------------------------------------ |
865 |
|
866 |
C Only do I/O if I am the master thread |
867 |
_BEGIN_MASTER( myThid ) |
868 |
|
869 |
C Record number must be >= 1 |
870 |
if (irecord .LT. 1) then |
871 |
write(0,'(a,i)') 'MDSREADVECTOR: argument irecord = ',irecord |
872 |
stop 'MDSREADVECTOR: *ERROR* Invalid value for irecord' |
873 |
endif |
874 |
|
875 |
C Assume nothing |
876 |
globalFile = .FALSE. |
877 |
fileIsOpen = .FALSE. |
878 |
IL=ILNBLNK( fName ) |
879 |
|
880 |
C Assign a free unit number as the I/O channel for this routine |
881 |
call MDSFINDUNIT( dUnit ) |
882 |
|
883 |
C Check first for global file with simple name (ie. fName) |
884 |
dataFName = fName |
885 |
inquire( file=dataFname, exist=exst ) |
886 |
if (exst) then |
887 |
write(0,'(2a)') 'MDSREADVECTOR: opening global file: ',dataFName |
888 |
globalFile = .TRUE. |
889 |
endif |
890 |
|
891 |
C If negative check for global file with MDS name (ie. fName.data) |
892 |
if (.NOT. globalFile) then |
893 |
write(dataFname(1:80),'(2a)') fName(1:IL),'.data' |
894 |
inquire( file=dataFname, exist=exst ) |
895 |
if (exst) then |
896 |
write(0,'(2a)') 'MDSREADVECTOR: opening global file: ',dataFName |
897 |
globalFile = .TRUE. |
898 |
endif |
899 |
endif |
900 |
|
901 |
C If we are reading from a global file then we open it here |
902 |
if (globalFile) then |
903 |
length_of_rec=MDS_RECLEN( filePrec, narr ) |
904 |
open( dUnit, file=dataFName, status='old', |
905 |
& access='direct', recl=length_of_rec ) |
906 |
fileIsOpen=.TRUE. |
907 |
endif |
908 |
|
909 |
C Loop over all tiles |
910 |
do bj=1,nSy |
911 |
do bi=1,nSx |
912 |
C If we are reading from a tiled MDS file then we open each one here |
913 |
if (.NOT. globalFile) then |
914 |
iG=bi+(myXGlobalLo-1)/sNx ! Kludge until unstructered tiles |
915 |
jG=bj+(myYGlobalLo-1)/sNy ! Kludge until unstructered tiles |
916 |
write(dataFname(1:80),'(2a,i3.3,a,i3.3,a)') |
917 |
& fName(1:IL),'.',iG,'.',jG,'.data' |
918 |
inquire( file=dataFname, exist=exst ) |
919 |
C Of course, we only open the file if the tile is "active" |
920 |
C (This is a place-holder for the active/passive mechanism) |
921 |
if (exst) then |
922 |
write(0,'(2a)') 'MDSREADVECTOR: opening file: ',dataFName |
923 |
length_of_rec=MDS_RECLEN( filePrec, narr ) |
924 |
open( dUnit, file=dataFName, status='old', |
925 |
& access='direct', recl=length_of_rec ) |
926 |
fileIsOpen=.TRUE. |
927 |
else |
928 |
fileIsOpen=.FALSE. |
929 |
stop 'MDSREADVECTOR: un-active tiles not implemented yet' |
930 |
endif |
931 |
endif |
932 |
if (fileIsOpen) then |
933 |
if (globalFile) then |
934 |
iG = myXGlobalLo-1+(bi-1)*sNx |
935 |
jG = myYGlobalLo-1+(bj-1)*sNy |
936 |
irec = 1 + int(iG/sNx) + (jG/sNy)*nSx*nPx + |
937 |
& (irecord-1)*nSx*nPx*nSy*nPy |
938 |
else |
939 |
iG = 0 |
940 |
jG = 0 |
941 |
irec = irecord |
942 |
endif |
943 |
if (filePrec .eq. precFloat32) then |
944 |
call MDS_READ_RS_VEC( dUnit, irec, narr, arr ) |
945 |
elseif (filePrec .eq. precFloat64) then |
946 |
call MDS_READ_RL_VEC( dUnit, irec, narr, arr ) |
947 |
else |
948 |
stop 'MDSREADVECTOR: illegal value for filePrec' |
949 |
endif |
950 |
if (.NOT. globalFile) then |
951 |
close( dUnit ) |
952 |
fileIsOpen = .FALSE. |
953 |
endif |
954 |
endif |
955 |
C End of bi,bj loops |
956 |
enddo |
957 |
enddo |
958 |
|
959 |
C If global file was opened then close it |
960 |
if (fileIsOpen .AND. globalFile) then |
961 |
close( dUnit ) |
962 |
fileIsOpen = .FALSE. |
963 |
endif |
964 |
|
965 |
_END_MASTER( myThid ) |
966 |
|
967 |
C ------------------------------------------------------------------ |
968 |
return |
969 |
end |
970 |
C======================================================================= |
971 |
|
972 |
C======================================================================= |
973 |
SUBROUTINE MDSWRITEVECTOR( |
974 |
I fName, |
975 |
I filePrec, |
976 |
I globalfile, |
977 |
I arrType, |
978 |
I narr, |
979 |
I arr, |
980 |
I irecord, |
981 |
I myIter, |
982 |
I myThid ) |
983 |
C Arguments: |
984 |
C |
985 |
C fName string base name for file to written |
986 |
C filePrec integer number of bits per word in file (32 or 64) |
987 |
C globalFile logical selects between writing a global or tiled file |
988 |
C arrType char(2) declaration of "arr": either "RS" or "RL" |
989 |
C narr integer size of third dimension: normally either 1 or Nr |
990 |
C arr RS/RL array to write, arr(narr) |
991 |
C irecord integer record number to read |
992 |
C myIter integer time step number |
993 |
C myThid integer thread identifier |
994 |
C |
995 |
C Created: 03/26/99 eckert@mit.edu |
996 |
C Modified: 03/29/99 adcroft@mit.edu + eckert@mit.edu |
997 |
C Fixed to work work with _RS and _RL declarations |
998 |
|
999 |
implicit none |
1000 |
C Global variables / common blocks |
1001 |
#include "SIZE.h" |
1002 |
#include "EEPARAMS.h" |
1003 |
#include "PARAMS.h" |
1004 |
|
1005 |
C Routine arguments |
1006 |
character*(*) fName |
1007 |
integer filePrec |
1008 |
logical globalfile |
1009 |
character*(2) arrType |
1010 |
integer narr |
1011 |
Real arr(narr) |
1012 |
integer irecord |
1013 |
integer myIter |
1014 |
integer myThid |
1015 |
C Functions |
1016 |
integer ILNBLNK |
1017 |
integer MDS_RECLEN |
1018 |
C Local variables |
1019 |
character*(80) dataFName,metaFName |
1020 |
integer iG,jG,irec,bi,bj,dUnit,IL |
1021 |
logical fileIsOpen |
1022 |
integer dimList(3,3),ndims |
1023 |
integer length_of_rec |
1024 |
C ------------------------------------------------------------------ |
1025 |
|
1026 |
C Only do I/O if I am the master thread |
1027 |
_BEGIN_MASTER( myThid ) |
1028 |
|
1029 |
C Record number must be >= 1 |
1030 |
if (irecord .LT. 1) then |
1031 |
write(0,'(a,i)') 'MDSWRITEVECTOR: argument irecord = ',irecord |
1032 |
stop 'MDSWRITEVECTOR: *ERROR* Invalid value for irecord' |
1033 |
endif |
1034 |
|
1035 |
C Assume nothing |
1036 |
fileIsOpen = .FALSE. |
1037 |
IL=ILNBLNK( fName ) |
1038 |
|
1039 |
C Assign a free unit number as the I/O channel for this routine |
1040 |
call MDSFINDUNIT( dUnit ) |
1041 |
|
1042 |
C If we are writing to a global file then we open it here |
1043 |
if (globalFile) then |
1044 |
write(dataFname(1:80),'(2a)') fName(1:IL),'.data' |
1045 |
if (irecord .EQ. 1) then |
1046 |
length_of_rec = MDS_RECLEN( filePrec, narr ) |
1047 |
open( dUnit, file=dataFName, status=_NEW_STATUS, |
1048 |
& access='direct', recl=length_of_rec ) |
1049 |
fileIsOpen=.TRUE. |
1050 |
else |
1051 |
length_of_rec = MDS_RECLEN( filePrec, narr ) |
1052 |
open( dUnit, file=dataFName, status='old', |
1053 |
& access='direct', recl=length_of_rec ) |
1054 |
fileIsOpen=.TRUE. |
1055 |
endif |
1056 |
endif |
1057 |
|
1058 |
C Loop over all tiles |
1059 |
do bj=1,nSy |
1060 |
do bi=1,nSx |
1061 |
C If we are writing to a tiled MDS file then we open each one here |
1062 |
if (.NOT. globalFile) then |
1063 |
iG=bi+(myXGlobalLo-1)/sNx ! Kludge until unstructered tiles |
1064 |
jG=bj+(myYGlobalLo-1)/sNy ! Kludge until unstructered tiles |
1065 |
write(dataFname(1:80),'(2a,i3.3,a,i3.3,a)') |
1066 |
& fName(1:IL),'.',iG,'.',jG,'.data' |
1067 |
if (irecord .EQ. 1) then |
1068 |
length_of_rec = MDS_RECLEN( filePrec, narr ) |
1069 |
open( dUnit, file=dataFName, status=_NEW_STATUS, |
1070 |
& access='direct', recl=length_of_rec ) |
1071 |
fileIsOpen=.TRUE. |
1072 |
else |
1073 |
length_of_rec = MDS_RECLEN( filePrec, narr ) |
1074 |
open( dUnit, file=dataFName, status='old', |
1075 |
& access='direct', recl=length_of_rec ) |
1076 |
fileIsOpen=.TRUE. |
1077 |
endif |
1078 |
endif |
1079 |
if (fileIsOpen) then |
1080 |
if (globalFile) then |
1081 |
iG = myXGlobalLo-1+(bi-1)*sNx |
1082 |
jG = myYGlobalLo-1+(bj-1)*sNy |
1083 |
irec = 1 + int(iG/sNx) + (jG/sNy)*nSx*nPx + |
1084 |
& (irecord-1)*nSx*nPx*nSy*nPy |
1085 |
else |
1086 |
iG = 0 |
1087 |
jG = 0 |
1088 |
irec = irecord |
1089 |
endif |
1090 |
if (filePrec .eq. precFloat32) then |
1091 |
call MDS_WRITE_RS_VEC( dUnit, irec, narr, arr ) |
1092 |
elseif (filePrec .eq. precFloat64) then |
1093 |
call MDS_WRITE_RL_VEC( dUnit, irec, narr, arr ) |
1094 |
else |
1095 |
stop 'MDSWRITEVECTOR: illegal value for filePrec' |
1096 |
endif |
1097 |
else |
1098 |
stop 'MDSWRITEVECTOR: I should not ever get to this point' |
1099 |
endif |
1100 |
C If we were writing to a tiled MDS file then we close it here |
1101 |
if (fileIsOpen .AND. (.NOT. globalFile)) then |
1102 |
close( dUnit ) |
1103 |
fileIsOpen = .FALSE. |
1104 |
endif |
1105 |
C Create meta-file for each tile file |
1106 |
if (.NOT. globalFile) then |
1107 |
write(metaFname(1:80),'(2a,i3.3,a,i3.3,a)') |
1108 |
& fName(1:IL),'.',bi,'.',bj,'.meta' |
1109 |
dimList(1,1) = nPx*nSx*narr |
1110 |
dimList(2,1) = (int(myXGlobalLo/sNx)+(bi-1))*narr |
1111 |
dimList(3,1) = (int(myXGlobalLo/sNx)+ bi )*narr - 1 |
1112 |
dimList(1,2) = nPy*nSy |
1113 |
dimList(2,2) = int(myYGlobalLo/sNy) + bj - 1 |
1114 |
dimList(3,2) = int(myYGlobalLo/sNy) + bj - 1 |
1115 |
dimList(1,3) = 1 |
1116 |
dimList(2,3) = 1 |
1117 |
dimList(3,3) = 1 |
1118 |
ndims=1 |
1119 |
call MDSWRITEMETA( metaFName, dataFName, |
1120 |
& filePrec, ndims, dimList, irecord, myIter ) |
1121 |
endif |
1122 |
C End of bi,bj loops |
1123 |
enddo |
1124 |
enddo |
1125 |
|
1126 |
C If global file was opened then close it |
1127 |
if (fileIsOpen .AND. globalFile) then |
1128 |
close( dUnit ) |
1129 |
fileIsOpen = .FALSE. |
1130 |
endif |
1131 |
|
1132 |
C Create meta-file for global file |
1133 |
if (globalFile) then |
1134 |
write(metaFName(1:80),'(2a)') fName(1:IL),'.meta' |
1135 |
dimList(1,1) = nPx*nSx*narr |
1136 |
dimList(2,1) = 1 |
1137 |
dimList(3,1) = nPx*nSx*narr |
1138 |
dimList(1,2) = nPy*nSy |
1139 |
dimList(2,2) = 1 |
1140 |
dimList(3,2) = nPy*nSy |
1141 |
dimList(1,3) = 1 |
1142 |
dimList(2,3) = 1 |
1143 |
dimList(3,3) = 1 |
1144 |
ndims=1 |
1145 |
call MDSWRITEMETA( metaFName, dataFName, |
1146 |
& filePrec, ndims, dimList, irecord, myIter ) |
1147 |
endif |
1148 |
|
1149 |
_END_MASTER( myThid ) |
1150 |
C ------------------------------------------------------------------ |
1151 |
return |
1152 |
end |
1153 |
C======================================================================= |
1154 |
|
1155 |
C======================================================================= |
1156 |
subroutine MDS_WRITE_RS_VEC( dUnit, irec, narr, arr ) |
1157 |
C IN: |
1158 |
C dunit integer - 'Opened' I/O channel |
1159 |
C irec integer - record number to write |
1160 |
C narr integer - dimension off array "arr" |
1161 |
C arr _RS - model tiled vector |
1162 |
C |
1163 |
C Created: 03/29/99 eckert@mit.edu + adcroft@mit.edu |
1164 |
|
1165 |
implicit none |
1166 |
C Arguments |
1167 |
integer dUnit |
1168 |
integer irec |
1169 |
integer narr |
1170 |
_RS arr(narr) |
1171 |
C Local |
1172 |
C ------------------------------------------------------------------ |
1173 |
write(0,*) 'MDS_WRITE_RS_VEC: irec=',irec,narr |
1174 |
write(dUnit,rec=irec) arr |
1175 |
C ------------------------------------------------------------------ |
1176 |
return |
1177 |
end |
1178 |
C======================================================================= |
1179 |
|
1180 |
C======================================================================= |
1181 |
subroutine MDS_WRITE_RL_VEC( dUnit, irec, narr, arr ) |
1182 |
C IN: |
1183 |
C dunit integer - 'Opened' I/O channel |
1184 |
C irec integer - record number to write |
1185 |
C narr integer - dimension off array "arr" |
1186 |
C arr _RL - model tiled vector |
1187 |
C |
1188 |
C Created: 03/29/99 eckert@mit.edu + adcroft@mit.edu |
1189 |
|
1190 |
implicit none |
1191 |
C Arguments |
1192 |
integer dUnit |
1193 |
integer irec |
1194 |
integer narr |
1195 |
_RL arr(narr) |
1196 |
C Local |
1197 |
C ------------------------------------------------------------------ |
1198 |
write(0,*) 'MDS_WRITE_RL_VEC: irec=',irec,narr |
1199 |
write(dUnit,rec=irec) arr |
1200 |
C ------------------------------------------------------------------ |
1201 |
return |
1202 |
end |
1203 |
C======================================================================= |
1204 |
|
1205 |
C======================================================================= |
1206 |
subroutine MDS_READ_RS_VEC( dUnit, irec, narr, arr ) |
1207 |
C IN: |
1208 |
C dunit integer - 'Opened' I/O channel |
1209 |
C irec integer - record number to write |
1210 |
C narr integer - dimension off array "arr" |
1211 |
C OUT: |
1212 |
C arr _RS - model tiled vector |
1213 |
C |
1214 |
C Created: 03/29/99 eckert@mit.edu + adcroft@mit.edu |
1215 |
|
1216 |
implicit none |
1217 |
C Arguments |
1218 |
integer dUnit |
1219 |
integer irec |
1220 |
integer narr |
1221 |
_RS arr(narr) |
1222 |
C Local |
1223 |
C ------------------------------------------------------------------ |
1224 |
read(dUnit,rec=irec) arr |
1225 |
C ------------------------------------------------------------------ |
1226 |
return |
1227 |
end |
1228 |
C======================================================================= |
1229 |
|
1230 |
C======================================================================= |
1231 |
subroutine MDS_READ_RL_VEC( dUnit, irec, narr, arr ) |
1232 |
C IN: |
1233 |
C dunit integer - 'Opened' I/O channel |
1234 |
C irec integer - record number to write |
1235 |
C narr integer - dimension off array "arr" |
1236 |
C OUT: |
1237 |
C arr _RL - model tiled vector |
1238 |
C |
1239 |
C Created: 03/29/99 eckert@mit.edu + adcroft@mit.edu |
1240 |
|
1241 |
implicit none |
1242 |
C Arguments |
1243 |
integer dUnit |
1244 |
integer irec |
1245 |
integer narr |
1246 |
_RL arr(narr) |
1247 |
C Local |
1248 |
C ------------------------------------------------------------------ |
1249 |
read(dUnit,rec=irec) arr |
1250 |
C ------------------------------------------------------------------ |
1251 |
return |
1252 |
end |
1253 |
C======================================================================= |
1254 |
|
1255 |
#ifdef _BYTESWAPIO |
1256 |
C======================================================================= |
1257 |
subroutine MDS_BYTESWAPR4( n, arr ) |
1258 |
C IN: |
1259 |
C n integer - Number of 4-byte words in arr |
1260 |
C IN/OUT: |
1261 |
C arr real*4 - Array declared as real*4(n) |
1262 |
C |
1263 |
C Created: 05/05/99 adcroft@mit.edu (This is an unfortunate hack!!) |
1264 |
|
1265 |
implicit none |
1266 |
C Arguments |
1267 |
integer n |
1268 |
character*(*) arr |
1269 |
C Local |
1270 |
integer i |
1271 |
character*(1) cc |
1272 |
C ------------------------------------------------------------------ |
1273 |
do i=1,4*n,4 |
1274 |
cc=arr(i:i) |
1275 |
arr(i:i)=arr(i+3:i+3) |
1276 |
arr(i+3:i+3)=cc |
1277 |
cc=arr(i+1:i+1) |
1278 |
arr(i+1:i+1)=arr(i+2:i+2) |
1279 |
arr(i+2:i+2)=cc |
1280 |
enddo |
1281 |
C ------------------------------------------------------------------ |
1282 |
return |
1283 |
end |
1284 |
C======================================================================= |
1285 |
|
1286 |
C======================================================================= |
1287 |
subroutine MDS_BYTESWAPR8( n, arr ) |
1288 |
C IN: |
1289 |
C n integer - Number of 8-byte words in arr |
1290 |
C IN/OUT: |
1291 |
C arr real*8 - Array declared as real*4(n) |
1292 |
C |
1293 |
C Created: 05/05/99 adcroft@mit.edu (This is an unfortunate hack!!) |
1294 |
|
1295 |
implicit none |
1296 |
C Arguments |
1297 |
integer n |
1298 |
character*(*) arr |
1299 |
C Local |
1300 |
integer i |
1301 |
character*(1) cc |
1302 |
C ------------------------------------------------------------------ |
1303 |
do i=1,8*n,8 |
1304 |
cc=arr(i:i) |
1305 |
arr(i:i)=arr(i+7:i+7) |
1306 |
arr(i+7:i+7)=cc |
1307 |
cc=arr(i+1:i+1) |
1308 |
arr(i+1:i+1)=arr(i+6:i+6) |
1309 |
arr(i+6:i+6)=cc |
1310 |
cc=arr(i+2:i+2) |
1311 |
arr(i+2:i+2)=arr(i+5:i+5) |
1312 |
arr(i+5:i+5)=cc |
1313 |
cc=arr(i+3:i+3) |
1314 |
arr(i+3:i+3)=arr(i+4:i+4) |
1315 |
arr(i+4:i+4)=cc |
1316 |
enddo |
1317 |
C ------------------------------------------------------------------ |
1318 |
return |
1319 |
end |
1320 |
C======================================================================= |
1321 |
#endif |