/[MITgcm]/MITgcm/model/src/ini_grid.F
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revision 1.14 by jmc, Sun Nov 23 04:19:11 2003 UTC revision 1.30 by jmc, Tue Oct 17 18:20:18 2006 UTC
# Line 6  C $Name$ Line 6  C $Name$
6    
7  CBOP  CBOP
8  C     !ROUTINE: INI_GRID  C     !ROUTINE: INI_GRID
9    
10  C     !INTERFACE:  C     !INTERFACE:
11        SUBROUTINE INI_GRID( myThid )        SUBROUTINE INI_GRID( myThid )
12  C     !DESCRIPTION: \bv  C     !DESCRIPTION:
13  C     *==========================================================*  C     These arrays are used throughout the code in evaluating gradients,
14  C     | SUBROUTINE INI_GRID                                        C     integrals and spatial avarages. This routine is called separately
15  C     | o Initialise model grid                                    C     by each thread and initializes only the region of the domain it is
16  C     *==========================================================*  C     "responsible" for.
 C     | These arrays are used throughout the code in evaluating    
 C     | gradients, integrals and spatial avarages. This routine    
 C     | is called separately by each thread and initialise only    
 C     | the region of the domain it is "responsible" for.          
 C     | Notes:                                                      
 C     | Two examples are shown in this code. One illustrates the    
 C     | initialisation of a cartesian grid. The other shows the    
 C     | inialisation of a spherical polar grid. Other orthonormal  
 C     | grids can be fitted into this design. In this case          
 C     | custom metric terms also need adding to account for the    
 C     | projections of velocity vectors onto these grids.          
 C     | The structure used here also makes it possible to          
 C     | implement less regular grid mappings. In particular        
 C     | o Schemes which leave out blocks of the domain that are    
 C     |   all land could be supported.                              
 C     | o Multi-level schemes such as icosohedral or cubic          
 C     |   grid projectedions onto a sphere can also be fitted      
 C     |   within the strategy we use.                              
 C     |   Both of the above also require modifying the support      
 C     |   routines that map computational blocks to simulation      
 C     |   domain blocks.                                            
 C     *==========================================================*  
 C     \ev  
17    
18  C     !USES:  C     !USES:
19        IMPLICIT NONE        IMPLICIT NONE
 C     === Global variables ===  
20  #include "SIZE.h"  #include "SIZE.h"
21  #include "EEPARAMS.h"  #include "EEPARAMS.h"
22  #include "PARAMS.h"  #include "PARAMS.h"
23  #include "GRID.h"  #include "GRID.h"
24    #ifdef ALLOW_MNC
25    #include "MNC_PARAMS.h"
26    #endif
27    #ifdef ALLOW_MONITOR
28    #include "MONITOR.h"
29    #endif
30    
31  C     !INPUT/OUTPUT PARAMETERS:  C     !INPUT/OUTPUT PARAMETERS:
 C     == Routine arguments ==  
 C     myThid -  Number of this instance of INI_GRID  
32        INTEGER myThid        INTEGER myThid
33    CEOP
34    
35    C     === Functions ====
36          LOGICAL  MASTER_CPU_IO
37          EXTERNAL MASTER_CPU_IO
38    
39  C     !LOCAL VARIABLES:  C     !LOCAL VARIABLES:
 C     == Local variables ==  
40  C     msgBuf - Used for informational I/O.  C     msgBuf - Used for informational I/O.
41        CHARACTER*(MAX_LEN_MBUF) msgBuf        CHARACTER*(MAX_LEN_MBUF) msgBuf
42  CEOP  #ifdef ALLOW_MNC
43          INTEGER i
44    #endif
45    
46  C--   Set up vertical grid and coordinate system  C     load grid spacing (vector) from files
47          CALL LOAD_GRID_SPACING( myThid )
48    
49    C     Set up vertical grid and coordinate system
50        CALL INI_VERTICAL_GRID( myThid )        CALL INI_VERTICAL_GRID( myThid )
51    
52  C--   Set up horizontal grid and coordinate system  C     Two examples are shown in this code. One illustrates the
53    C     initialization of a cartesian grid. The other shows the
54    C     inialization of a spherical polar grid. Other orthonormal grids
55    C     can be fitted into this design. In this case custom metric terms
56    C     also need adding to account for the projections of velocity
57    C     vectors onto these grids.  The structure used here also makes it
58    C     possible to implement less regular grid mappings. In particular:
59    C      o Schemes which leave out blocks of the domain that are  
60    C        all land could be supported.                            
61    C      o Multi-level schemes such as icosohedral or cubic        
62    C        grid projectedions onto a sphere can also be fitted    
63    C       within the strategy we use.                            
64    C        Both of the above also require modifying the support    
65    C        routines that map computational blocks to simulation    
66    C        domain blocks.                                          
67    
68    C     Set up horizontal grid and coordinate system
69        IF ( usingCartesianGrid ) THEN        IF ( usingCartesianGrid ) THEN
70         CALL INI_CARTESIAN_GRID( myThid )          CALL INI_CARTESIAN_GRID( myThid )
71        ELSEIF ( usingSphericalPolarGrid ) THEN        ELSEIF ( usingSphericalPolarGrid ) THEN
72         CALL INI_SPHERICAL_POLAR_GRID( myThid )          CALL INI_SPHERICAL_POLAR_GRID( myThid )
73        ELSEIF ( usingCurvilinearGrid ) THEN        ELSEIF ( usingCurvilinearGrid ) THEN
74         CALL INI_CURVILINEAR_GRID( myThid )          CALL INI_CURVILINEAR_GRID( myThid )
75          ELSEIF ( usingCylindricalGrid ) THEN
76            CALL INI_CYLINDER_GRID( myThid )
77        ELSE        ELSE
78         _BEGIN_MASTER(myThid)          _BEGIN_MASTER(myThid)
79          WRITE(msgBuf,'(A)')          WRITE(msgBuf,'(2A)') 'S/R INI_GRID: ',
80       &   'S/R INI_GRID: No grid coordinate system has been selected'       &       'No grid coordinate system has been selected'
81           CALL PRINT_ERROR( msgBuf , myThid)          CALL PRINT_ERROR( msgBuf , myThid)
82           STOP 'ABNORMAL END: S/R INI_GRID'          STOP 'ABNORMAL END: S/R INI_GRID'
83         _END_MASTER(myThid)          _END_MASTER(myThid)
84        ENDIF        ENDIF
85    
86  C--   Write certain grid data to files (useful for creating netCDF  #ifdef ALLOW_MONITOR
87  C     and general post-analysis)        IF ( MASTER_CPU_IO(myThid) ) THEN
88        CALL WRITE_FLD_XY_RS( 'XC',' ',XC,0,myThid)  C--   only the master thread is allowed to switch On/Off mon_write_stdout
89        CALL WRITE_FLD_XY_RS( 'YC',' ',YC,0,myThid)  C     & mon_write_mnc (since it's the only thread that uses those flags):
90        CALL WRITE_FLD_XY_RS( 'XG',' ',XG,0,myThid)  
91        CALL WRITE_FLD_XY_RS( 'YG',' ',YG,0,myThid)          IF (monitor_stdio) THEN
92        CALL WRITE_FLD_XY_RS( 'RAC',' ',rA,0,myThid)            mon_write_stdout = .TRUE.
93        CALL WRITE_FLD_XY_RS( 'RAW',' ',rAw,0,myThid)          ELSE
94        CALL WRITE_FLD_XY_RS( 'RAS',' ',rAs,0,myThid)            mon_write_stdout = .FALSE.
95        CALL WRITE_FLD_XY_RS( 'DXG',' ',DXG,0,myThid)          ENDIF
96        CALL WRITE_FLD_XY_RS( 'DYG',' ',DYG,0,myThid)          mon_write_mnc = .FALSE.
97        CALL WRITE_FLD_XY_RS( 'DXC',' ',DXC,0,myThid)  #ifdef ALLOW_MNC
98        CALL WRITE_FLD_XY_RS( 'DYC',' ',DYC,0,myThid)          IF (useMNC .AND. monitor_mnc) THEN
99              DO i = 1,MAX_LEN_MBUF
100                mon_fname(i:i) = ' '
101              ENDDO
102              mon_fname(1:12) = 'monitor_grid'
103              CALL MNC_CW_SET_UDIM(mon_fname, 1, myThid)
104              mon_write_mnc = .TRUE.
105            ENDIF
106    #endif /*  ALLOW_MNC  */
107    
108          ENDIF
109    
110  C--   Print out statistics of each horizontal grid array (helps when debugging)  C     Print out statistics of each horizontal grid array (helps when
111    C     debugging)
112          CALL MON_PRINTSTATS_RS(1,xC,'XC',myThid)
113          CALL MON_PRINTSTATS_RS(1,xG,'XG',myThid)
114          CALL MON_PRINTSTATS_RS(1,dxC,'DXC',myThid)
115          CALL MON_PRINTSTATS_RS(1,dxF,'DXF',myThid)
116          CALL MON_PRINTSTATS_RS(1,dxG,'DXG',myThid)
117          CALL MON_PRINTSTATS_RS(1,dxV,'DXV',myThid)
118          CALL MON_PRINTSTATS_RS(1,yC,'YC',myThid)
119          CALL MON_PRINTSTATS_RS(1,yG,'YG',myThid)
120          CALL MON_PRINTSTATS_RS(1,dyC,'DYC',myThid)
121          CALL MON_PRINTSTATS_RS(1,dyF,'DYF',myThid)
122          CALL MON_PRINTSTATS_RS(1,dyG,'DYG',myThid)
123          CALL MON_PRINTSTATS_RS(1,dyU,'DYU',myThid)
124          CALL MON_PRINTSTATS_RS(1,rA,'RA',myThid)
125          CALL MON_PRINTSTATS_RS(1,rAw,'RAW',myThid)
126          CALL MON_PRINTSTATS_RS(1,rAs,'RAS',myThid)
127          CALL MON_PRINTSTATS_RS(1,rAz,'RAZ',myThid)
128          CALL MON_PRINTSTATS_RS(1,angleCosC,'AngleCS',myThid)
129          CALL MON_PRINTSTATS_RS(1,angleSinC,'AngleSN',myThid)
130    
131          IF ( MASTER_CPU_IO(myThid) ) THEN
132            mon_write_stdout = .FALSE.
133            mon_write_mnc    = .FALSE.
134          ENDIF
135    #endif /* ALLOW_MONITOR */
136    
137  #ifdef ALLOW_MONITOR  C--   Everyone else must wait for the grid to be set
138        CALL MON_PRINTSTATS_RS(1,XC,'XC',myThid)        _BARRIER
       CALL MON_PRINTSTATS_RS(1,XG,'XG',myThid)  
       CALL MON_PRINTSTATS_RS(1,DXC,'DXC',myThid)  
       CALL MON_PRINTSTATS_RS(1,DXF,'DXF',myThid)  
       CALL MON_PRINTSTATS_RS(1,DXG,'DXG',myThid)  
       CALL MON_PRINTSTATS_RS(1,DXV,'DXV',myThid)  
       CALL MON_PRINTSTATS_RS(1,YC,'YC',myThid)  
       CALL MON_PRINTSTATS_RS(1,YG,'YG',myThid)  
       CALL MON_PRINTSTATS_RS(1,DYC,'DYC',myThid)  
       CALL MON_PRINTSTATS_RS(1,DYF,'DYF',myThid)  
       CALL MON_PRINTSTATS_RS(1,DYG,'DYG',myThid)  
       CALL MON_PRINTSTATS_RS(1,DYU,'DYU',myThid)  
       CALL MON_PRINTSTATS_RS(1,RA,'RA',myThid)  
       CALL MON_PRINTSTATS_RS(1,RAW,'RAW',myThid)  
       CALL MON_PRINTSTATS_RS(1,RAS,'RAS',myThid)  
       CALL MON_PRINTSTATS_RS(1,RAZ,'RAZ',myThid)  
 #endif  
139    
140        RETURN        RETURN
141        END        END
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