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C $Header: /u/gcmpack/MITgcm/pkg/mnc/mnc_grid.F,v 1.19 2008/05/22 12:21:19 mlosch Exp $ |
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C $Name: $ |
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|
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#include "MNC_OPTIONS.h" |
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|
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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CBOP 1 |
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C !ROUTINE: MNC_GRID_INIT |
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|
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C !INTERFACE: |
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SUBROUTINE MNC_GRID_INIT( |
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I fname, |
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I gname, |
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I ndim, |
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I dnames, |
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I myThid ) |
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|
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C !DESCRIPTION: |
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C Create an MNC grid within a NetCDF file context. |
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|
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C !USES: |
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implicit none |
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|
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C !INPUT PARAMETERS: |
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integer myThid, ndim |
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character*(*) fname,gname |
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character*(*) dnames(ndim) |
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CEOP |
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|
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C !LOCAL VARIABLES: |
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integer ind |
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|
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CALL MNC_GRID_INIT_ALL(fname, gname, ndim, dnames, ind, myThid) |
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|
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RETURN |
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END |
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|
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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CBOP 1 |
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C !ROUTINE: MNC_GRID_INIT_ALL |
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|
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C !INTERFACE: |
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SUBROUTINE MNC_GRID_INIT_ALL( |
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I fname, |
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I gname, |
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I ndim, |
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I dnames, |
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O ind, |
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I myThid ) |
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|
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C !DESCRIPTION: |
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C Initialize a new conceptual (MNC inner layer) grid within a NetCDF |
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C file context. If the requested grid name already exists, then |
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C verify that it has exactly the same number of dimensions, each |
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C with exactly the same size and report a fatal error if not. This |
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C is a necessary check since the MNC inner layer does not support |
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C grid name re--definition. |
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|
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C !USES: |
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implicit none |
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#include "MNC_COMMON.h" |
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#include "EEPARAMS.h" |
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#include "netcdf.inc" |
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|
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C !INPUT PARAMETERS: |
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integer myThid, ndim, ind |
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character*(*) fname,gname |
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character*(*) dnames(ndim) |
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CEOP |
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|
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C !LOCAL VARIABLES: |
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integer i,j,k,ii,jj,kk, n,nf, indf,indg,indd, fid, ngrid |
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integer ng_ind,lg_ind, ds_last, ndim_file, igr,ig1,ig2 |
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integer ngt, ngn |
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character*(MAX_LEN_MBUF) msgbuf |
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character*(MNC_MAX_PATH) file_name |
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|
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C Functions |
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integer ILNBLNK |
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|
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C Get the file ID and indicies |
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DO i =1,MNC_MAX_PATH |
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file_name(i:i) = ' ' |
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ENDDO |
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nf = ILNBLNK(fname) |
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IF (nf .GT. MNC_MAX_PATH) nf = MNC_MAX_PATH |
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file_name(1:nf) = fname(1:nf) |
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CALL MNC_GET_IND(MNC_MAX_FID,file_name,mnc_f_names,indf,myThid) |
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IF (indf .LT. 1) THEN |
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write(msgbuf,'(3a)') 'MNC ERROR: file ''', file_name(1:nf), |
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& ''' does not exist' |
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CALL print_error( msgbuf, mythid ) |
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stop 'ABNORMAL END: S/R MNC_GRID_INIT' |
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ENDIF |
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fid = mnc_f_info(indf,2) |
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ngrid = mnc_f_info(indf,3) |
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ng_ind = 4 + 3*ngrid |
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IF (ngrid .EQ. 0) THEN |
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ds_last = 0 |
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ELSE |
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lg_ind = 4 + 3*(ngrid - 1) |
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ds_last = mnc_f_info(indf,(lg_ind+2)) |
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ENDIF |
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|
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C Check for sufficient space in memory |
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i = ds_last + ndim |
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j = 3 + 3*(ngrid + 1) |
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IF ((i .GE. MNC_MAX_INFO) .OR. (j .GE. MNC_MAX_INFO)) THEN |
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write(msgbuf,'(2a)') 'MNC_GRID_INIT_ALL ERROR: insufficient', |
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& ' space--please increase MNC_MAX_INFO' |
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CALL print_error( msgbuf, mythid ) |
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stop 'ABNORMAL END: S/R MNC_GRID_INIT_ALL' |
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ENDIF |
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|
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C Enter DEFINE mode |
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CALL MNC_FILE_REDEF(fname, myThid) |
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|
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ngn = ILNBLNK(gname) |
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|
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C Check for grid re-definition |
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DO igr = 1,mnc_f_info(indf,3) |
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ii = 4 + 3*(igr - 1) |
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ngt = ILNBLNK(mnc_g_names(mnc_f_info(indf,ii))) |
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IF ( (ngt .EQ. ngn) |
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& .AND. (mnc_g_names(mnc_f_info(indf,ii))(1:ngt) |
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& .EQ. gname(1:ngn)) ) THEN |
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|
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ig1 = mnc_f_info(indf,ii+1) |
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ig2 = mnc_f_info(indf,ii+2) |
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|
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C Check if different number of dims |
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IF (ndim .NE. (ig2-ig1+1)) THEN |
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kk = ILNBLNK( mnc_f_names(indf) ) |
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write(msgbuf,'(6a)') 'MNC ERROR: grid ''', gname(1:ngn), |
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& ''' was previously defined for file ''', |
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& mnc_f_names(indf)(1:kk), ''' with a different ', |
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& 'number of dimensions' |
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CALL print_error(msgbuf, mythid) |
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stop 'ABNORMAL END: S/R MNC_GRID_INIT' |
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ENDIF |
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|
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C Check if same number of dims but different dim names |
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k = 0 |
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DO jj = ig1,ig2 |
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k = k + 1 |
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IF (mnc_d_names(mnc_fd_ind(indf,jj)) .NE. dnames(k)) THEN |
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kk = ILNBLNK( mnc_f_names(indf) ) |
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write(msgbuf,'(6a)') 'MNC ERROR: grid ''', gname(1:ngn), |
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& ''' was previously defined for file ''', |
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& mnc_f_names(indf)(1:kk), ''' with a different ', |
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& 'combination of dimensions' |
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CALL print_error(msgbuf, mythid) |
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stop 'ABNORMAL END: S/R MNC_GRID_INIT' |
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ENDIF |
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ENDDO |
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|
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C Reaching this point means that the grid name WAS previously |
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C defined and the number and sizes of the associated dimensions |
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C exactly match so everything is OK and we do not need to create |
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C a new definition for this grid. |
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RETURN |
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|
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ENDIF |
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ENDDO |
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|
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C Reaching this point means the grid was NOT previously defined and |
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C we must therefore create a new definition. |
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CALL MNC_GET_NEXT_EMPTY_IND(MNC_MAX_ID, mnc_g_names, |
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& 'mnc_g_names', indg, myThid) |
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mnc_g_names(indg)(1:MNC_MAX_CHAR) = |
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& mnc_blank_name(1:MNC_MAX_CHAR) |
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n = ILNBLNK(gname) |
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mnc_g_names(indg)(1:n) = gname(1:n) |
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|
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C Add the dimensions |
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DO i = 1,ndim |
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|
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j = ds_last + i |
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n = ILNBLNK(dnames(i)) |
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|
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C Search for the dimension ID within the list of dimensions |
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C defined for this file |
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ndim_file = mnc_f_alld(indf,1) |
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indd = 0 |
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DO ii = 1,ndim_file |
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jj = mnc_f_alld(indf,ii+1) |
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kk = ILNBLNK(mnc_d_names(jj)) |
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IF ((n .EQ. kk) |
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& .AND. (dnames(i)(1:n) .EQ. mnc_d_names(jj)(1:kk))) THEN |
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indd = jj |
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GOTO 20 |
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ENDIF |
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ENDDO |
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20 CONTINUE |
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IF (indd .LT. 1) THEN |
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write(msgbuf,'(5a)') 'MNC ERROR: dimension ''', |
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& dnames(i)(1:n), ''' does not exist for file ''', |
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& fname(1:nf), '''' |
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CALL print_error( msgbuf, mythid ) |
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stop 'ABNORMAL END: S/R MNC_GRID_INIT' |
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ENDIF |
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|
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mnc_fd_ind(indf,j) = indd |
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|
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ENDDO |
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|
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C Grid successfully added, so update file table |
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mnc_f_info(indf,ng_ind) = indg |
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mnc_f_info(indf,ng_ind+1) = ds_last + 1 |
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mnc_f_info(indf,ng_ind+2) = ds_last + ndim |
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mnc_f_info(indf,3) = ngrid + 1 |
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ind = indg |
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|
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RETURN |
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END |
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|
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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CBOP 1 |
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C !ROUTINE: MNC_GRID_GET_DIMIND |
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|
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C !INTERFACE: |
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SUBROUTINE MNC_GRID_GET_DIMIND( |
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I indf, |
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I dname, |
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O ind_fg_ids, |
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I myThid ) |
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|
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C !DESCRIPTION: |
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C Get the dimension ID (index) for the named dimension. |
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|
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C !USES: |
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implicit none |
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#include "MNC_COMMON.h" |
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|
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C !INPUT PARAMETERS: |
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integer indf, ind_fg_ids, myThid |
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character*(*) dname |
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CEOP |
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|
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C !LOCAL VARIABLES: |
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integer i,j,k,l, n,n1, ngrid, ds,de |
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|
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C Functions |
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integer ILNBLNK |
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|
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|
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ind_fg_ids = -1 |
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n = ILNBLNK(dname) |
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ngrid = mnc_f_info(indf,3) |
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DO i = 1,ngrid |
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j = 4 + 3*(i - 1) |
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ds = mnc_f_info(indf,j+1) |
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de = mnc_f_info(indf,j+2) |
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DO k = ds,de |
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l = mnc_fd_ind(indf,k) |
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n1 = ILNBLNK(mnc_d_names(l)) |
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IF ((n .EQ. n1) |
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& .AND. (mnc_d_names(l)(1:n1) .EQ. dname(1:n))) THEN |
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ind_fg_ids = k |
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RETURN |
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ENDIF |
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ENDDO |
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ENDDO |
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RETURN |
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END |
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|
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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