MODULE iom_nf90 !!===================================================================== !! *** MODULE iom_nf90 *** !! Input/Output manager : Library to read input files with NF90 (only fliocom module) !!==================================================================== !! History : 9.0 ! 05 12 (J. Belier) Original code !! 9.0 ! 06 02 (S. Masson) Adaptation to NEMO !! " ! 07 07 (D. Storkey) Changes to iom_nf90_gettime !!-------------------------------------------------------------------- !!gm caution add !DIR nec: improved performance to be checked as well as no result changes !!-------------------------------------------------------------------- !! iom_open : open a file read only !! iom_close : close a file or all files opened by iom !! iom_get : read a field (interfaced to several routines) !! iom_gettime : read the time axis kvid in the file !! iom_varid : get the id of a variable in a file !! iom_rstput : write a field in a restart file (interfaced to several routines) !!-------------------------------------------------------------------- USE dom_oce ! ocean space and time domain USE lbclnk ! lateal boundary condition / mpp exchanges USE iom_def ! iom variables definitions USE netcdf ! NetCDF library USE in_out_manager ! I/O manager USE lib_mpp ! MPP library IMPLICIT NONE PRIVATE PUBLIC iom_nf90_open, iom_nf90_close, iom_nf90_varid, iom_nf90_get, iom_nf90_gettime, iom_nf90_rstput PUBLIC iom_nf90_getatt INTERFACE iom_nf90_get MODULE PROCEDURE iom_nf90_g0d, iom_nf90_g123d END INTERFACE INTERFACE iom_nf90_getatt MODULE PROCEDURE iom_nf90_intatt END INTERFACE INTERFACE iom_nf90_rstput MODULE PROCEDURE iom_nf90_rp0123d END INTERFACE !!---------------------------------------------------------------------- !! NEMO/OPA 3.3 , NEMO Consortium (2010) !! $Id: iom_nf90.F90 4689 2014-06-24 23:40:18Z clem $ !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) !!---------------------------------------------------------------------- CONTAINS SUBROUTINE iom_nf90_open( cdname, kiomid, ldwrt, ldok, kdompar ) !!--------------------------------------------------------------------- !! *** SUBROUTINE iom_open *** !! !! ** Purpose : open an input file with NF90 !!--------------------------------------------------------------------- CHARACTER(len=*) , INTENT(inout) :: cdname ! File name INTEGER , INTENT( out) :: kiomid ! nf90 identifier of the opened file LOGICAL , INTENT(in ) :: ldwrt ! read or write the file? LOGICAL , INTENT(in ) :: ldok ! check the existence INTEGER, DIMENSION(2,5), INTENT(in ), OPTIONAL :: kdompar ! domain parameters: CHARACTER(LEN=256) :: clinfo ! info character CHARACTER(LEN=256) :: cltmp ! temporary character INTEGER :: iln ! lengths of character INTEGER :: istop ! temporary storage of nstop INTEGER :: if90id ! nf90 identifier of the opened file INTEGER :: idmy ! dummy variable INTEGER :: jl ! loop variable INTEGER :: ichunk ! temporary storage of nn_chunksz INTEGER :: imode ! creation mode flag: NF90_CLOBBER or NF90_NOCLOBBER or NF90_HDF5 INTEGER :: ihdf5 ! local variable for retrieval of value for NF90_HDF5 LOGICAL :: llclobber ! local definition of ln_clobber !--------------------------------------------------------------------- clinfo = ' iom_nf90_open ~~~ ' istop = nstop ! store the actual value of nstop IF( nn_chunksz > 0 ) THEN ; ichunk = nn_chunksz ELSE ; ichunk = NF90_SIZEHINT_DEFAULT ENDIF ! llclobber = ldwrt .AND. ln_clobber IF( ldok .AND. .NOT. llclobber ) THEN ! Open existing file... ! ! ============= IF( ldwrt ) THEN ! ... in write mode IF(lwp) WRITE(numout,*) TRIM(clinfo)//' open existing file: '//TRIM(cdname)//' in WRITE mode' IF( snc4set%luse ) THEN CALL iom_nf90_check(NF90_OPEN( TRIM(cdname), NF90_WRITE , if90id ), clinfo) ELSE CALL iom_nf90_check(NF90_OPEN( TRIM(cdname), NF90_WRITE , if90id, chunksize = ichunk ), clinfo) ENDIF CALL iom_nf90_check(NF90_SET_FILL( if90id, NF90_NOFILL, idmy ), clinfo) ELSE ! ... in read mode IF(lwp) WRITE(numout,*) TRIM(clinfo)//' open existing file: '//TRIM(cdname)//' in READ mode' CALL iom_nf90_check(NF90_OPEN( TRIM(cdname), NF90_NOWRITE, if90id, chunksize = ichunk ), clinfo) ENDIF ELSE ! the file does not exist (or we overwrite it) ! ! ============= iln = INDEX( cdname, '.nc' ) IF( ldwrt ) THEN ! the file should be open in write mode so we create it... IF( jpnij > 1 ) THEN WRITE(cltmp,'(a,a,i4.4,a)') cdname(1:iln-1), '_', narea-1, '.nc' cdname = TRIM(cltmp) ENDIF IF(lwp) WRITE(numout,*) TRIM(clinfo)//' create new file: '//TRIM(cdname)//' in WRITE mode' IF( llclobber ) THEN ; imode = IOR( NF90_64BIT_OFFSET, NF90_CLOBBER ) ELSE ; imode = IOR( NF90_64BIT_OFFSET, NF90_NOCLOBBER ) ENDIF IF( snc4set%luse ) THEN IF(lwp) WRITE(numout,*) TRIM(clinfo)//' creating file: '//TRIM(cdname)//' in hdf5 (netcdf4) mode' CALL GET_NF90_SYMBOL("NF90_HDF5", ihdf5) IF( llclobber ) THEN ; imode = IOR(ihdf5, NF90_CLOBBER) ELSE ; imode = IOR(ihdf5, NF90_NOCLOBBER) ENDIF CALL iom_nf90_check(NF90_CREATE( TRIM(cdname), imode, if90id ), clinfo) ELSE CALL iom_nf90_check(NF90_CREATE( TRIM(cdname), imode, if90id, chunksize = ichunk ), clinfo) ENDIF CALL iom_nf90_check(NF90_SET_FILL( if90id, NF90_NOFILL, idmy ), clinfo) ! define dimensions CALL iom_nf90_check(NF90_DEF_DIM( if90id, 'x', kdompar(1,1) , idmy ), clinfo) CALL iom_nf90_check(NF90_DEF_DIM( if90id, 'y', kdompar(2,1) , idmy ), clinfo) CALL iom_nf90_check(NF90_DEF_DIM( if90id, 'z', jpk , idmy ), clinfo) CALL iom_nf90_check(NF90_DEF_DIM( if90id, 't', NF90_UNLIMITED, idmy ), clinfo) ! global attributes CALL iom_nf90_check(NF90_PUT_ATT( if90id, NF90_GLOBAL, 'DOMAIN_number_total' , jpnij ), clinfo) CALL iom_nf90_check(NF90_PUT_ATT( if90id, NF90_GLOBAL, 'DOMAIN_number' , narea-1 ), clinfo) CALL iom_nf90_check(NF90_PUT_ATT( if90id, NF90_GLOBAL, 'DOMAIN_dimensions_ids' , (/1 , 2 /) ), clinfo) CALL iom_nf90_check(NF90_PUT_ATT( if90id, NF90_GLOBAL, 'DOMAIN_size_global' , (/jpiglo, jpjglo/) ), clinfo) CALL iom_nf90_check(NF90_PUT_ATT( if90id, NF90_GLOBAL, 'DOMAIN_size_local' , kdompar(:,1) ), clinfo) CALL iom_nf90_check(NF90_PUT_ATT( if90id, NF90_GLOBAL, 'DOMAIN_position_first' , kdompar(:,2) ), clinfo) CALL iom_nf90_check(NF90_PUT_ATT( if90id, NF90_GLOBAL, 'DOMAIN_position_last' , kdompar(:,3) ), clinfo) CALL iom_nf90_check(NF90_PUT_ATT( if90id, NF90_GLOBAL, 'DOMAIN_halo_size_start', kdompar(:,4) ), clinfo) CALL iom_nf90_check(NF90_PUT_ATT( if90id, NF90_GLOBAL, 'DOMAIN_halo_size_end' , kdompar(:,5) ), clinfo) CALL iom_nf90_check(NF90_PUT_ATT( if90id, NF90_GLOBAL, 'DOMAIN_type' , 'BOX' ), clinfo) ELSE ! the file should be open for read mode so it must exist... CALL ctl_stop( TRIM(clinfo), ' should be impossible case...' ) ENDIF ENDIF ! start to fill file informations ! ============= IF( istop == nstop ) THEN ! no error within this routine !does not work with some compilers kiomid = MINLOC(iom_file(:)%nfid, dim = 1) kiomid = 0 DO jl = jpmax_files, 1, -1 IF( iom_file(jl)%nfid == 0 ) kiomid = jl ENDDO iom_file(kiomid)%name = TRIM(cdname) iom_file(kiomid)%nfid = if90id iom_file(kiomid)%iolib = jpnf90 iom_file(kiomid)%nvars = 0 iom_file(kiomid)%irec = -1 ! useless for NetCDF files, used to know if the file is in define mode CALL iom_nf90_check(NF90_Inquire(if90id, unlimitedDimId = iom_file(kiomid)%iduld), clinfo) IF ( iom_file(kiomid)%iduld .GE. 0 ) THEN CALL iom_nf90_check(NF90_Inquire_Dimension(if90id, iom_file(kiomid)%iduld, & & name = iom_file(kiomid)%uldname), clinfo) ENDIF IF(lwp) WRITE(numout,*) ' ---> '//TRIM(cdname)//' OK' ELSE kiomid = 0 ! return error flag ENDIF ! END SUBROUTINE iom_nf90_open SUBROUTINE iom_nf90_close( kiomid ) !!-------------------------------------------------------------------- !! *** SUBROUTINE iom_nf90_close *** !! !! ** Purpose : close an input file with NF90 !!-------------------------------------------------------------------- INTEGER, INTENT(in) :: kiomid ! iom identifier of the file to be closed CHARACTER(LEN=100) :: clinfo ! info character !--------------------------------------------------------------------- ! clinfo = ' iom_nf90_close , file: '//TRIM(iom_file(kiomid)%name) CALL iom_nf90_check(NF90_CLOSE(iom_file(kiomid)%nfid), clinfo) ! END SUBROUTINE iom_nf90_close FUNCTION iom_nf90_varid ( kiomid, cdvar, kiv, kdimsz, kndims ) !!----------------------------------------------------------------------- !! *** FUNCTION iom_varid *** !! !! ** Purpose : get the id of a variable in a file with NF90 !!----------------------------------------------------------------------- INTEGER , INTENT(in ) :: kiomid ! file Identifier CHARACTER(len=*) , INTENT(in ) :: cdvar ! name of the variable INTEGER , INTENT(in ) :: kiv ! INTEGER, DIMENSION(:), INTENT( out), OPTIONAL :: kdimsz ! size of the dimensions INTEGER, INTENT( out), OPTIONAL :: kndims ! size of the dimensions ! INTEGER :: iom_nf90_varid ! iom variable Id INTEGER :: if90id ! nf90 file identifier INTEGER :: ji ! dummy loop index INTEGER :: ivarid ! NetCDF variable Id INTEGER :: i_nvd ! number of dimension of the variable INTEGER, DIMENSION(jpmax_dims) :: idimid ! dimension ids of the variable LOGICAL :: llok ! ok test CHARACTER(LEN=100) :: clinfo ! info character !!----------------------------------------------------------------------- clinfo = ' iom_nf90_varid, file: '//TRIM(iom_file(kiomid)%name)//', var: '//TRIM(cdvar) iom_nf90_varid = 0 ! default definition IF( PRESENT(kdimsz) ) kdimsz(:) = 0 ! default definition if90id = iom_file(kiomid)%nfid ! get back NetCDF file id ! llok = NF90_INQ_VARID( if90id, TRIM(cdvar), ivarid ) == nf90_noerr ! does the variable exist in the file IF( llok ) THEN iom_nf90_varid = kiv iom_file(kiomid)%nvars = kiv iom_file(kiomid)%nvid(kiv) = ivarid iom_file(kiomid)%cn_var(kiv) = TRIM(cdvar) CALL iom_nf90_check(NF90_Inquire_Variable(if90id, ivarid, ndims = i_nvd), clinfo) ! number of dimensions iom_file(kiomid)%ndims(kiv) = i_nvd CALL iom_nf90_check(NF90_Inquire_Variable(if90id, ivarid, dimids = idimid(1:i_nvd)), clinfo) ! dimensions ids iom_file(kiomid)%luld(kiv) = .FALSE. ! default value iom_file(kiomid)%dimsz(:,kiv) = 0 ! reset dimsz in case previously used DO ji = 1, i_nvd ! dimensions size CALL iom_nf90_check(NF90_Inquire_Dimension(if90id, idimid(ji), len = iom_file(kiomid)%dimsz(ji,kiv)), clinfo) IF( idimid(ji) == iom_file(kiomid)%iduld ) iom_file(kiomid)%luld(kiv) = .TRUE. ! unlimited dimension? END DO !---------- Deal with scale_factor and add_offset llok = NF90_Inquire_attribute(if90id, ivarid, 'scale_factor') == nf90_noerr IF( llok) THEN CALL iom_nf90_check(NF90_GET_ATT(if90id, ivarid, 'scale_factor', iom_file(kiomid)%scf(kiv)), clinfo) ELSE iom_file(kiomid)%scf(kiv) = 1. END IF llok = NF90_Inquire_attribute(if90id, ivarid, 'add_offset') == nf90_noerr IF( llok ) THEN CALL iom_nf90_check(NF90_GET_ATT(if90id, ivarid, 'add_offset', iom_file(kiomid)%ofs(kiv)), clinfo) ELSE iom_file(kiomid)%ofs(kiv) = 0. END IF ! return the simension size IF( PRESENT(kdimsz) ) THEN IF( i_nvd == SIZE(kdimsz) ) THEN kdimsz(:) = iom_file(kiomid)%dimsz(1:i_nvd,kiv) ELSE WRITE(ctmp1,*) i_nvd, SIZE(kdimsz) CALL ctl_stop( TRIM(clinfo), 'error in kdimsz size'//TRIM(ctmp1) ) ENDIF ENDIF IF( PRESENT(kndims) ) kndims = iom_file(kiomid)%ndims(kiv) ELSE iom_nf90_varid = -1 ! variable not found, return error code: -1 ENDIF ! END FUNCTION iom_nf90_varid SUBROUTINE iom_nf90_g0d( kiomid, kvid, pvar, kstart ) !!----------------------------------------------------------------------- !! *** ROUTINE iom_nf90_g0d *** !! !! ** Purpose : read a scalar with NF90 !!----------------------------------------------------------------------- INTEGER , INTENT(in ) :: kiomid ! Identifier of the file INTEGER , INTENT(in ) :: kvid ! variable id REAL(wp), INTENT( out) :: pvar ! read field INTEGER , DIMENSION(1), INTENT(in ), OPTIONAL :: kstart ! start position of the reading in each axis ! CHARACTER(LEN=100) :: clinfo ! info character !--------------------------------------------------------------------- clinfo = 'iom_nf90_g0d , file: '//TRIM(iom_file(kiomid)%name)//', var: '//TRIM(iom_file(kiomid)%cn_var(kvid)) CALL iom_nf90_check(NF90_GET_VAR(iom_file(kiomid)%nfid, iom_file(kiomid)%nvid(kvid), pvar, start = kstart), clinfo ) ! END SUBROUTINE iom_nf90_g0d SUBROUTINE iom_nf90_g123d( kiomid, kvid, knbdim, kstart, kcount, kx1, kx2, ky1, ky2, & & pv_r1d, pv_r2d, pv_r3d ) !!----------------------------------------------------------------------- !! *** ROUTINE iom_nf90_g123d *** !! !! ** Purpose : read a 1D/2D/3D variable with NF90 !! !! ** Method : read ONE record at each CALL !!----------------------------------------------------------------------- INTEGER , INTENT(in ) :: kiomid ! iom identifier of the file INTEGER , INTENT(in ) :: kvid ! Name of the variable INTEGER , INTENT(in ) :: knbdim ! number of dimensions of the variable INTEGER , DIMENSION(:) , INTENT(in ) :: kstart ! start position of the reading in each axis INTEGER , DIMENSION(:) , INTENT(in ) :: kcount ! number of points to be read in each axis INTEGER , INTENT(in ) :: kx1, kx2, ky1, ky2 ! subdomain indexes REAL(wp), DIMENSION(:) , INTENT( out), OPTIONAL :: pv_r1d ! read field (1D case) REAL(wp), DIMENSION(:,:) , INTENT( out), OPTIONAL :: pv_r2d ! read field (2D case) REAL(wp), DIMENSION(:,:,:) , INTENT( out), OPTIONAL :: pv_r3d ! read field (3D case) ! CHARACTER(LEN=100) :: clinfo ! info character INTEGER :: if90id ! nf90 identifier of the opened file INTEGER :: ivid ! nf90 variable id !--------------------------------------------------------------------- clinfo = 'iom_nf90_g123d , file: '//TRIM(iom_file(kiomid)%name)//', var: '//TRIM(iom_file(kiomid)%cn_var(kvid)) if90id = iom_file(kiomid)%nfid ! get back NetCDF file id ivid = iom_file(kiomid)%nvid(kvid) ! get back NetCDF var id ! IF( PRESENT(pv_r1d) ) THEN CALL iom_nf90_check( NF90_GET_VAR(if90id, ivid, pv_r1d(: ), start = kstart(1:knbdim), & & count = kcount(1:knbdim)), clinfo ) ELSEIF( PRESENT(pv_r2d) ) THEN CALL iom_nf90_check( NF90_GET_VAR(if90id, ivid, pv_r2d(kx1:kx2,ky1:ky2 ), start = kstart(1:knbdim), & & count = kcount(1:knbdim)), clinfo ) ELSEIF( PRESENT(pv_r3d) ) THEN CALL iom_nf90_check( NF90_GET_VAR(if90id, ivid, pv_r3d(kx1:kx2,ky1:ky2,:), start = kstart(1:knbdim), & & count = kcount(1:knbdim)), clinfo ) ENDIF ! END SUBROUTINE iom_nf90_g123d SUBROUTINE iom_nf90_intatt( kiomid, cdatt, pvar ) !!----------------------------------------------------------------------- !! *** ROUTINE iom_nf90_intatt *** !! !! ** Purpose : read an integer attribute with NF90 !!----------------------------------------------------------------------- INTEGER , INTENT(in ) :: kiomid ! Identifier of the file CHARACTER(len=*), INTENT(in ) :: cdatt ! attribute name INTEGER , INTENT( out) :: pvar ! read field ! INTEGER :: if90id ! temporary integer LOGICAL :: llok ! temporary logical CHARACTER(LEN=100) :: clinfo ! info character !--------------------------------------------------------------------- ! if90id = iom_file(kiomid)%nfid llok = NF90_Inquire_attribute(if90id, NF90_GLOBAL, cdatt) == nf90_noerr IF( llok) THEN clinfo = 'iom_nf90_getatt, file: '//TRIM(iom_file(kiomid)%name)//', att: '//TRIM(cdatt) CALL iom_nf90_check(NF90_GET_ATT(if90id, NF90_GLOBAL, cdatt, values=pvar), clinfo) ELSE CALL ctl_warn('iom_nf90_getatt: no attribute '//cdatt//' found') pvar = -999 ENDIF ! END SUBROUTINE iom_nf90_intatt SUBROUTINE iom_nf90_gettime( kiomid, kvid, ptime, cdunits, cdcalendar ) !!-------------------------------------------------------------------- !! *** SUBROUTINE iom_gettime *** !! !! ** Purpose : read the time axis kvid in the file with NF90 !!-------------------------------------------------------------------- INTEGER , INTENT(in ) :: kiomid ! file Identifier INTEGER , INTENT(in ) :: kvid ! variable id REAL(wp), DIMENSION(:) , INTENT( out) :: ptime ! the time axis CHARACTER(len=*), OPTIONAL, INTENT( out) :: cdunits ! units attribute CHARACTER(len=*), OPTIONAL, INTENT( out) :: cdcalendar ! calendar attribute ! CHARACTER(LEN=100) :: clinfo ! info character !--------------------------------------------------------------------- clinfo = 'iom_nf90_gettime, file: '//TRIM(iom_file(kiomid)%name)//', var: '//TRIM(iom_file(kiomid)%cn_var(kvid)) CALL iom_nf90_check(NF90_GET_VAR(iom_file(kiomid)%nfid, iom_file(kiomid)%nvid(kvid), ptime(:), & & start=(/ 1 /), count=(/ iom_file(kiomid)%dimsz(1, kvid) /)), clinfo) IF ( PRESENT(cdunits) ) THEN CALL iom_nf90_check(NF90_GET_ATT(iom_file(kiomid)%nfid, iom_file(kiomid)%nvid(kvid), "units", & & values=cdunits), clinfo) ENDIF IF ( PRESENT(cdcalendar) ) THEN CALL iom_nf90_check(NF90_GET_ATT(iom_file(kiomid)%nfid, iom_file(kiomid)%nvid(kvid), "calendar", & & values=cdcalendar), clinfo) ENDIF ! END SUBROUTINE iom_nf90_gettime SUBROUTINE iom_nf90_rp0123d( kt, kwrite, kiomid, cdvar , kvid , ktype, & & pv_r0d, pv_r1d, pv_r2d, pv_r3d ) !!-------------------------------------------------------------------- !! *** SUBROUTINE iom_nf90_rstput *** !! !! ** Purpose : read the time axis cdvar in the file !!-------------------------------------------------------------------- INTEGER , INTENT(in) :: kt ! ocean time-step INTEGER , INTENT(in) :: kwrite ! writing time-step INTEGER , INTENT(in) :: kiomid ! Identifier of the file CHARACTER(len=*) , INTENT(in) :: cdvar ! variable name INTEGER , INTENT(in) :: kvid ! variable id INTEGER , INTENT(in), OPTIONAL :: ktype ! variable type (default R8) REAL(wp) , INTENT(in), OPTIONAL :: pv_r0d ! written Od field REAL(wp), DIMENSION( :), INTENT(in), OPTIONAL :: pv_r1d ! written 1d field REAL(wp), DIMENSION(:, : ), INTENT(in), OPTIONAL :: pv_r2d ! written 2d field REAL(wp), DIMENSION(:, :, :), INTENT(in), OPTIONAL :: pv_r3d ! written 3d field ! INTEGER :: idims ! number of dimension INTEGER :: idvar ! variable id INTEGER :: jd ! dimension loop counter INTEGER :: ix1, ix2, iy1, iy2 ! subdomain indexes INTEGER, DIMENSION(4) :: idimsz ! dimensions size INTEGER, DIMENSION(4) :: idimid ! dimensions id CHARACTER(LEN=256) :: clinfo ! info character CHARACTER(LEN= 12), DIMENSION(4) :: cltmp ! temporary character INTEGER :: if90id ! nf90 file identifier INTEGER :: idmy ! dummy variable INTEGER :: itype ! variable type INTEGER, DIMENSION(4) :: ichunksz ! NetCDF4 chunk sizes. Will be computed using ! nn_nchunks_[i,j,k,t] namelist parameters INTEGER :: ichunkalg, ishuffle,& ideflate, ideflate_level ! NetCDF4 internally fixed parameters LOGICAL :: lchunk ! logical switch to activate chunking and compression ! when appropriate (currently chunking is applied to 4d fields only) !--------------------------------------------------------------------- ! clinfo = ' iom_nf90_rp0123d, file: '//TRIM(iom_file(kiomid)%name)//', var: '//TRIM(cdvar) if90id = iom_file(kiomid)%nfid ! ! define dimension variables if it is not already done ! ========================== IF( iom_file(kiomid)%nvars == 0 ) THEN ! are we in define mode? IF( iom_file(kiomid)%irec /= -1 ) THEN ! trick: irec used to know if the file is in define mode or not CALL iom_nf90_check(NF90_REDEF( if90id ), clinfo) ; iom_file(kiomid)%irec = -1 ENDIF ! define the dimension variables if it is not already done cltmp = (/ 'nav_lon ', 'nav_lat ', 'nav_lev ', 'time_counter' /) CALL iom_nf90_check(NF90_DEF_VAR( if90id, TRIM(cltmp(1)), NF90_FLOAT , (/ 1, 2 /), iom_file(kiomid)%nvid(1) ), clinfo) CALL iom_nf90_check(NF90_DEF_VAR( if90id, TRIM(cltmp(2)), NF90_FLOAT , (/ 1, 2 /), iom_file(kiomid)%nvid(2) ), clinfo) CALL iom_nf90_check(NF90_DEF_VAR( if90id, TRIM(cltmp(3)), NF90_FLOAT , (/ 3 /), iom_file(kiomid)%nvid(3) ), clinfo) CALL iom_nf90_check(NF90_DEF_VAR( if90id, TRIM(cltmp(4)), NF90_DOUBLE, (/ 4 /), iom_file(kiomid)%nvid(4) ), clinfo) ! update informations structure related the dimension variable we just added... iom_file(kiomid)%nvars = 4 iom_file(kiomid)%luld(1:4) = (/ .FALSE., .FALSE., .FALSE., .TRUE. /) iom_file(kiomid)%cn_var(1:4) = cltmp iom_file(kiomid)%ndims(1:4) = (/ 2, 2, 1, 1 /) ! trick: defined to 0 to say that dimension variables are defined but not yet written iom_file(kiomid)%dimsz(1, 1) = 0 IF(lwp) WRITE(numout,*) TRIM(clinfo)//' define dimension variables done' ENDIF ! define the data if it is not already done ! =============== IF( kvid <= 0 ) THEN ! ! NetCDF4 chunking and compression fixed settings ichunkalg = 0 ishuffle = 1 ideflate = 1 ideflate_level = 1 ! idvar = iom_file(kiomid)%nvars + 1 ! are we in define mode? IF( iom_file(kiomid)%irec /= -1 ) THEN ! trick: irec used to know if the file is in define mode or not CALL iom_nf90_check(NF90_REDEF( if90id ), clinfo) ; iom_file(kiomid)%irec = -1 ENDIF ! variable definition IF( PRESENT(pv_r0d) ) THEN ; idims = 0 ELSEIF( PRESENT(pv_r1d) ) THEN ; idims = 2 ; idimid(1:idims) = (/ 3,4/) ELSEIF( PRESENT(pv_r2d) ) THEN ; idims = 3 ; idimid(1:idims) = (/1,2 ,4/) ELSEIF( PRESENT(pv_r3d) ) THEN ; idims = 4 ; idimid(1:idims) = (/1,2,3,4/) ENDIF IF( PRESENT(ktype) ) THEN ! variable external type SELECT CASE (ktype) CASE (jp_r8) ; itype = NF90_DOUBLE CASE (jp_r4) ; itype = NF90_FLOAT CASE (jp_i4) ; itype = NF90_INT CASE (jp_i2) ; itype = NF90_SHORT CASE (jp_i1) ; itype = NF90_BYTE CASE DEFAULT ; CALL ctl_stop( TRIM(clinfo)//' unknown variable type' ) END SELECT ELSE itype = NF90_DOUBLE ENDIF IF( PRESENT(pv_r0d) ) THEN CALL iom_nf90_check(NF90_DEF_VAR( if90id, TRIM(cdvar), itype, & & iom_file(kiomid)%nvid(idvar) ), clinfo) ELSE CALL iom_nf90_check(NF90_DEF_VAR( if90id, TRIM(cdvar), itype, idimid(1:idims), & & iom_file(kiomid)%nvid(idvar) ), clinfo) ENDIF lchunk = .false. IF( snc4set%luse .AND. idims.eq.4 ) lchunk = .true. ! update informations structure related the new variable we want to add... iom_file(kiomid)%nvars = idvar iom_file(kiomid)%cn_var(idvar) = TRIM(cdvar) iom_file(kiomid)%scf(idvar) = 1. iom_file(kiomid)%ofs(idvar) = 0. iom_file(kiomid)%ndims(idvar) = idims IF( .NOT. PRESENT(pv_r0d) ) THEN ; iom_file(kiomid)%luld(idvar) = .TRUE. ELSE ; iom_file(kiomid)%luld(idvar) = .FALSE. ENDIF DO jd = 1, idims CALL iom_nf90_check(NF90_INQUIRE_DIMENSION( if90id, idimid(jd), len = iom_file(kiomid)%dimsz(jd,idvar) ), clinfo) IF ( lchunk ) ichunksz(jd) = iom_file(kiomid)%dimsz(jd,idvar) END DO IF ( lchunk ) THEN ! Calculate chunk sizes by partitioning each dimension as requested in namnc4 namelist ! Disallow very small chunk sizes and prevent chunk sizes larger than each individual dimension ichunksz(1) = MIN( ichunksz(1),MAX( (ichunksz(1)-1)/snc4set%ni + 1 ,16 ) ) ! Suggested default nc4set%ni=4 ichunksz(2) = MIN( ichunksz(2),MAX( (ichunksz(2)-1)/snc4set%nj + 1 ,16 ) ) ! Suggested default nc4set%nj=2 ichunksz(3) = MIN( ichunksz(3),MAX( (ichunksz(3)-1)/snc4set%nk + 1 , 1 ) ) ! Suggested default nc4set%nk=6 ichunksz(4) = 1 ! Do not allow chunks to span the ! unlimited dimension CALL iom_nf90_check(SET_NF90_DEF_VAR_CHUNKING(if90id, idvar, ichunkalg, ichunksz), clinfo) CALL iom_nf90_check(SET_NF90_DEF_VAR_DEFLATE(if90id, idvar, ishuffle, ideflate, ideflate_level), clinfo) IF(lwp) WRITE(numout,*) TRIM(clinfo)//' chunked ok. Chunks sizes: ', ichunksz ENDIF IF(lwp) WRITE(numout,*) TRIM(clinfo)//' defined ok' ELSE idvar = kvid ENDIF ! time step kwrite : write the variable IF( kt == kwrite ) THEN ! are we in write mode? IF( iom_file(kiomid)%irec == -1 ) THEN ! trick: irec used to know if the file is in define mode or not CALL iom_nf90_check(NF90_ENDDEF( if90id ), clinfo) ; iom_file(kiomid)%irec = 0 ENDIF ! on what kind of domain must the data be written? IF( PRESENT(pv_r2d) .OR. PRESENT(pv_r3d) ) THEN idimsz(1:2) = iom_file(kiomid)%dimsz(1:2,idvar) IF( idimsz(1) == (nlei - nldi + 1) .AND. idimsz(2) == (nlej - nldj + 1) ) THEN ix1 = nldi ; ix2 = nlei ; iy1 = nldj ; iy2 = nlej ELSEIF( idimsz(1) == nlci .AND. idimsz(2) == nlcj ) THEN ix1 = 1 ; ix2 = nlci ; iy1 = 1 ; iy2 = nlcj ELSEIF( idimsz(1) == jpi .AND. idimsz(2) == jpj ) THEN ix1 = 1 ; ix2 = jpi ; iy1 = 1 ; iy2 = jpj ELSE CALL ctl_stop( 'iom_nf90_rp0123d: should have been an impossible case...' ) ENDIF ! write dimension variables if it is not already done ! ============= ! trick: is defined to 0 => dimension variable are defined but not yet written IF( iom_file(kiomid)%dimsz(1, 1) == 0 ) THEN CALL iom_nf90_check(NF90_INQ_VARID( if90id, 'nav_lon' , idmy ), clinfo) CALL iom_nf90_check(NF90_PUT_VAR( if90id, idmy, glamt(ix1:ix2, iy1:iy2) ), clinfo) CALL iom_nf90_check(NF90_INQ_VARID( if90id, 'nav_lat' , idmy ), clinfo) CALL iom_nf90_check(NF90_PUT_VAR( if90id, idmy, gphit(ix1:ix2, iy1:iy2) ), clinfo) CALL iom_nf90_check(NF90_INQ_VARID( if90id, 'nav_lev' , idmy ), clinfo) CALL iom_nf90_check(NF90_PUT_VAR( if90id, idmy, gdept_1d ), clinfo) ! +++ WRONG VALUE: to be improved but not really useful... CALL iom_nf90_check(NF90_INQ_VARID( if90id, 'time_counter', idmy ), clinfo) CALL iom_nf90_check(NF90_PUT_VAR( if90id, idmy, kt ), clinfo) ! update the values of the variables dimensions size CALL iom_nf90_check(NF90_INQUIRE_DIMENSION( if90id, 1, len = iom_file(kiomid)%dimsz(1,1) ), clinfo) CALL iom_nf90_check(NF90_INQUIRE_DIMENSION( if90id, 2, len = iom_file(kiomid)%dimsz(2,1) ), clinfo) iom_file(kiomid)%dimsz(1:2, 2) = iom_file(kiomid)%dimsz(1:2, 1) CALL iom_nf90_check(NF90_INQUIRE_DIMENSION( if90id, 3, len = iom_file(kiomid)%dimsz(1,3) ), clinfo) iom_file(kiomid)%dimsz(1 , 4) = 1 ! unlimited dimension IF(lwp) WRITE(numout,*) TRIM(clinfo)//' write dimension variables done' ENDIF ENDIF ! write the data ! ============= IF( PRESENT(pv_r0d) ) THEN CALL iom_nf90_check(NF90_PUT_VAR( if90id, idvar, pv_r0d ), clinfo) ELSEIF( PRESENT(pv_r1d) ) THEN CALL iom_nf90_check(NF90_PUT_VAR( if90id, idvar, pv_r1d( :) ), clinfo) ELSEIF( PRESENT(pv_r2d) ) THEN CALL iom_nf90_check(NF90_PUT_VAR( if90id, idvar, pv_r2d(ix1:ix2, iy1:iy2 ) ), clinfo) ELSEIF( PRESENT(pv_r3d) ) THEN CALL iom_nf90_check(NF90_PUT_VAR( if90id, idvar, pv_r3d(ix1:ix2, iy1:iy2, :) ), clinfo) ENDIF ! add 1 to the size of the temporal dimension (not really useful...) IF( iom_file(kiomid)%luld(idvar) ) iom_file(kiomid)%dimsz(iom_file(kiomid)%ndims(idvar), idvar) & & = iom_file(kiomid)%dimsz(iom_file(kiomid)%ndims(idvar), idvar) + 1 IF(lwp) WRITE(numout,*) TRIM(clinfo)//' written ok' ENDIF ! END SUBROUTINE iom_nf90_rp0123d SUBROUTINE iom_nf90_check( kstatus, cdinfo ) !!-------------------------------------------------------------------- !! *** SUBROUTINE iom_nf90_check *** !! !! ** Purpose : check nf90 errors !!-------------------------------------------------------------------- INTEGER, INTENT(in) :: kstatus CHARACTER(LEN=*), INTENT(in) :: cdinfo !--------------------------------------------------------------------- IF(kstatus /= nf90_noerr) CALL ctl_stop( 'iom_nf90_check : '//TRIM(nf90_strerror(kstatus)), TRIM(cdinfo) ) END SUBROUTINE iom_nf90_check !!====================================================================== END MODULE iom_nf90