/[MITgcm]/MITgcm/model/src/ini_grid.F
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revision 1.7.2.2 by jmc, Wed May 16 20:54:49 2001 UTC revision 1.29 by heimbach, Wed Sep 6 02:44:11 2006 UTC
# Line 1  Line 1 
1  C $Header$  C $Header$
2  C $Name$  C $Name$
3    
4    #include "PACKAGES_CONFIG.h"
5  #include "CPP_OPTIONS.h"  #include "CPP_OPTIONS.h"
6    
7  CStartOfInterface  CBOP
8    C     !ROUTINE: INI_GRID
9    
10    C     !INTERFACE:
11        SUBROUTINE INI_GRID( myThid )        SUBROUTINE INI_GRID( myThid )
12  C     /==========================================================\  C     !DESCRIPTION:
13  C     | SUBROUTINE INI_GRID                                      |  C     These arrays are used throughout the code in evaluating gradients,
14  C     | o Initialise model grid                                  |  C     integrals and spatial avarages. This routine is called separately
15  C     |==========================================================|  C     by each thread and initializes only the region of the domain it is
16  C     | These arrays are used throughout the code in evaluating  |  C     "responsible" for.
 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     \==========================================================/  
       IMPLICIT NONE  
17    
18  C     === Global variables ===  C     !USES:
19          IMPLICIT NONE
20  #include "SIZE.h"  #include "SIZE.h"
21  #include "EEPARAMS.h"  #include "EEPARAMS.h"
22    #ifndef ALLOW_AUTODIFF_TAMC
23    # include "EESUPPORT.h"
24    #endif
25  #include "PARAMS.h"  #include "PARAMS.h"
26  #include "GRID.h"  #include "GRID.h"
27    #ifdef ALLOW_MNC
28    #include "MNC_PARAMS.h"
29    #endif
30    #ifdef ALLOW_MONITOR
31    #include "MONITOR.h"
32    #endif
33    
34  C     == Routine arguments ==  C     !INPUT/OUTPUT PARAMETERS:
 C     myThid -  Number of this instance of INI_GRID  
35        INTEGER myThid        INTEGER myThid
36  CEndOfInterface  CEOP
37    
38  C     == Local variables ==  C     !LOCAL VARIABLES:
39  C     msgBuf - Used for informational I/O.  C     msgBuf - Used for informational I/O.
40        CHARACTER*(MAX_LEN_MBUF) msgBuf        CHARACTER*(MAX_LEN_MBUF) msgBuf
41    #ifdef ALLOW_MNC
42          INTEGER i
43    #endif
44    
45    C     load grid spacing (vector) from files
46          _BARRIER
47          CALL LOAD_GRID_SPACING( myThid )
48          _BARRIER
49    
50  C--   Set up vertical grid and coordinate system  C     Set up vertical grid and coordinate system
51        CALL INI_VERTICAL_GRID( myThid )        CALL INI_VERTICAL_GRID( myThid )
52    
53  C--   Set up horizontal grid and coordinate system  C     Two examples are shown in this code. One illustrates the
54    C     initialization of a cartesian grid. The other shows the
55    C     inialization of a spherical polar grid. Other orthonormal grids
56    C     can be fitted into this design. In this case custom metric terms
57    C     also need adding to account for the projections of velocity
58    C     vectors onto these grids.  The structure used here also makes it
59    C     possible to implement less regular grid mappings. In particular:
60    C      o Schemes which leave out blocks of the domain that are  
61    C        all land could be supported.                            
62    C      o Multi-level schemes such as icosohedral or cubic        
63    C        grid projectedions onto a sphere can also be fitted    
64    C       within the strategy we use.                            
65    C        Both of the above also require modifying the support    
66    C        routines that map computational blocks to simulation    
67    C        domain blocks.                                          
68    
69    C     Set up horizontal grid and coordinate system
70        IF ( usingCartesianGrid ) THEN        IF ( usingCartesianGrid ) THEN
71         CALL INI_CARTESIAN_GRID( myThid )          CALL INI_CARTESIAN_GRID( myThid )
72        ELSEIF ( usingSphericalPolarGrid ) THEN        ELSEIF ( usingSphericalPolarGrid ) THEN
73         CALL INI_SPHERICAL_POLAR_GRID( myThid )          CALL INI_SPHERICAL_POLAR_GRID( myThid )
74        ELSEIF ( usingCurvilinearGrid ) THEN        ELSEIF ( usingCurvilinearGrid ) THEN
75         CALL INI_CURVILINEAR_GRID( myThid )          CALL INI_CURVILINEAR_GRID( myThid )
76          ELSEIF ( usingCylindricalGrid ) THEN
77            CALL INI_CYLINDER_GRID( myThid )
78        ELSE        ELSE
79         _BEGIN_MASTER(myThid)          _BEGIN_MASTER(myThid)
80          WRITE(msgBuf,'(A)')          WRITE(msgBuf,'(2A)') 'S/R INI_GRID: ',
81       &   'S/R INI_GRID: No grid coordinate system has been selected'       &       'No grid coordinate system has been selected'
82           CALL PRINT_ERROR( msgBuf , myThid)          CALL PRINT_ERROR( msgBuf , myThid)
83           STOP 'ABNORMAL END: S/R INI_GRID'          STOP 'ABNORMAL END: S/R INI_GRID'
84         _END_MASTER(myThid)          _END_MASTER(myThid)
85          ENDIF
86    
87    #ifndef ALLOW_AUTODIFF_TAMC
88    #ifdef ALLOW_MONITOR
89    #ifdef ALLOW_USE_MPI
90          IF ( .NOT.useSingleCPUIO .OR. mpiMyId.EQ.0 ) THEN
91    #endif /* ALLOW_USE_MPI */
92            _BEGIN_MASTER(myThid)
93    C--   only the master thread is allowed to switch On/Off mon_write_stdout
94    C     & mon_write_mnc (since it's the only thread that uses those flags):
95    
96            IF (monitor_stdio) THEN
97              mon_write_stdout = .TRUE.
98            ELSE
99              mon_write_stdout = .FALSE.
100            ENDIF
101            mon_write_mnc = .FALSE.
102    #ifdef ALLOW_MNC
103            IF (useMNC .AND. monitor_mnc) THEN
104              DO i = 1,MAX_LEN_MBUF
105                mon_fname(i:i) = ' '
106              ENDDO
107              mon_fname(1:12) = 'monitor_grid'
108              CALL MNC_CW_SET_UDIM(mon_fname, 1, myThid)
109              mon_write_mnc = .TRUE.
110            ENDIF
111    #endif /*  ALLOW_MNC  */
112    
113            _END_MASTER(myThid)
114    #ifdef ALLOW_USE_MPI
115        ENDIF        ENDIF
116    #endif /* ALLOW_USE_MPI */
117    
118    C     Print out statistics of each horizontal grid array (helps when
119    C     debugging)
120          CALL MON_PRINTSTATS_RS(1,xC,'XC',myThid)
121          CALL MON_PRINTSTATS_RS(1,xG,'XG',myThid)
122          CALL MON_PRINTSTATS_RS(1,dxC,'DXC',myThid)
123          CALL MON_PRINTSTATS_RS(1,dxF,'DXF',myThid)
124          CALL MON_PRINTSTATS_RS(1,dxG,'DXG',myThid)
125          CALL MON_PRINTSTATS_RS(1,dxV,'DXV',myThid)
126          CALL MON_PRINTSTATS_RS(1,yC,'YC',myThid)
127          CALL MON_PRINTSTATS_RS(1,yG,'YG',myThid)
128          CALL MON_PRINTSTATS_RS(1,dyC,'DYC',myThid)
129          CALL MON_PRINTSTATS_RS(1,dyF,'DYF',myThid)
130          CALL MON_PRINTSTATS_RS(1,dyG,'DYG',myThid)
131          CALL MON_PRINTSTATS_RS(1,dyU,'DYU',myThid)
132          CALL MON_PRINTSTATS_RS(1,rA,'RA',myThid)
133          CALL MON_PRINTSTATS_RS(1,rAw,'RAW',myThid)
134          CALL MON_PRINTSTATS_RS(1,rAs,'RAS',myThid)
135          CALL MON_PRINTSTATS_RS(1,rAz,'RAZ',myThid)
136          CALL MON_PRINTSTATS_RS(1,angleCosC,'AngleCS',myThid)
137          CALL MON_PRINTSTATS_RS(1,angleSinC,'AngleSN',myThid)
138    
139    #ifdef ALLOW_USE_MPI
140          IF ( .NOT.useSingleCPUIO .OR. mpiMyId.EQ.0 ) THEN
141    #endif /* ALLOW_USE_MPI */
142            _BEGIN_MASTER(myThid)
143    
144  C--   Write certain grid data to files (useful for creating netCDF          mon_write_stdout = .FALSE.
145  C     and general post-analysis)          mon_write_mnc    = .FALSE.
146        CALL WRITE_FLD_XY_RS( 'XC',' ',XC,0,myThid)  
147        CALL WRITE_FLD_XY_RS( 'YC',' ',YC,0,myThid)          _END_MASTER(myThid)
148        CALL WRITE_FLD_XY_RS( 'XG',' ',XG,0,myThid)  #ifdef ALLOW_USE_MPI
149        CALL WRITE_FLD_XY_RS( 'YG',' ',YG,0,myThid)        ENDIF
150        CALL WRITE_FLD_XY_RS( 'AC',' ',rA,0,myThid)  #endif /* ALLOW_USE_MPI */
151    #endif /* ALLOW_MONITOR */
152    #endif /* ALLOW_AUTODIFF_TAMC */
153    
154        RETURN        RETURN
155        END        END
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