/[MITgcm]/MITgcm/pkg/cal/cal_readparms.F
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Annotation of /MITgcm/pkg/cal/cal_readparms.F

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Revision 1.5 - (hide annotations) (download)
Tue Dec 21 02:09:34 2004 UTC (19 years, 6 months ago) by edhill
Branch: MAIN
CVS Tags: checkpoint57g_pre, checkpoint57g_post, checkpoint57d_post, checkpoint57f_post, checkpoint57h_pre, checkpoint57h_post, checkpoint57c_post, checkpoint57c_pre, checkpoint57e_post, eckpoint57e_pre, checkpoint57h_done, checkpoint57f_pre
Changes since 1.4: +3 -3 lines
 o remove unbalaned single quotes from comments
   - CNH's code parser hates them
   - so do some C preprocessors

1 edhill 1.5 C $Header: /u/gcmpack/MITgcm/pkg/cal/cal_readparms.F,v 1.4 2003/11/25 19:04:16 heimbach Exp $
2 edhill 1.3 C $Name: $
3 heimbach 1.2
4 edhill 1.3 #include "CAL_OPTIONS.h"
5 heimbach 1.2
6     subroutine cal_readparms( mythid )
7    
8     c ==================================================================
9     c SUBROUTINE cal_readparms
10     c ==================================================================
11     c
12     c o This routine initialises the calendar according to the user
13     c specifications in "data.calendar".
14     c
15     c started: Christian Eckert eckert@mit.edu 30-Jun-1999
16     c
17     c changed: Christian Eckert eckert@mit.edu 29-Dec-1999
18     c
19     c - restructured the original version in order to have a
20     c better interface to the MITgcmUV.
21     c
22     c Christian Eckert eckert@mit.edu 10-Jan-2000
23     c
24     c - Modified namelist input. The data file is first copied
25     c to scrunit1 with the comment lines being left out.
26     c After this, scrunit1 is used to read the namelist data.
27     c
28     c Christian Eckert eckert@mit.edu 19-Jan-2000
29     c
30     c - Changed the role of the routine arguments. Chris Hill
31     c proposed to make the calendar less "invasive". The tool
32     c now assumes that the MITgcmUV already provides an ade-
33     c quate set of time stepping parameters. The calendar
34     c only associates a date with the given starttime of the
35     c numerical model. startdate corresponds to zero start-
36     c time. So, given niter0 or startdate .ne. zero the actual
37     c startdate of the current integration is shifted by the
38     c time interval correponding to niter0, startdate respec-
39     c tively.
40     c
41     c Christian Eckert eckert@mit.edu 03-Feb-2000
42     c
43     c - Introduced new routine and function names, cal_<NAME>,
44     c for verion 0.1.3.
45     c
46     c ==================================================================
47     c SUBROUTINE cal_readparms
48     c ==================================================================
49    
50     implicit none
51    
52     c == global variables ==
53    
54     #include "SIZE.h"
55     #include "EEPARAMS.h"
56     #include "PARAMS.h"
57    
58     c == routine arguments ==
59    
60     c modstart - start time of the model integration
61     c modend - end time of the model integration
62     c moditerini - initial iteration number of the model
63     c moditerend - last iteration number of the model
64     c modstep - timestep of the numerical model
65     c modintsteps - number of timesteps that are to be performed.
66     c mythid - number of this instance of the subrotuine.
67    
68     _RL modstart
69     _RL modend
70     _RL modstep
71     integer moditerini
72     integer moditerend
73     integer modintsteps
74     integer mythid
75    
76     c == local variables ==
77    
78     integer errio
79     integer ierr
80     integer il
81     integer enddate_1
82     integer enddate_2
83    
84     c Variables related to the calendar tool.
85     character*(9) TheCalendar
86     integer startdate_1
87     integer startdate_2
88    
89     character*(max_len_prec) record
90    
91     c == external ==
92    
93     integer ilnblnk
94     external ilnblnk
95    
96     c == end of interface ==
97    
98     c Calendar parameters
99     c (version 0.1.3 >> START << )
100    
101     namelist /CAL_NML/
102     & TheCalendar,
103     & startDate_1,startDate_2
104    
105     c (version 0.1.3 >> END << )
106    
107    
108     _BEGIN_MASTER(myThid)
109    
110 edhill 1.5 c Initialise the calendar parameters
111 heimbach 1.2 TheCalendar = ' '
112     startdate_1 = 0
113     startdate_2 = 0
114     enddate_1 = 0
115     enddate_2 = 0
116    
117     open(unit=scrunit1,status='scratch')
118    
119     c Next, read the calendar data file.
120     open(unit = modeldataunit,file = 'data.cal',
121     & status = 'old', iostat = errio)
122     if ( errio .lt. 0 ) then
123     ierr = 1
124     call cal_PrintError( ierr, mythid )
125     stop ' stopped in cal_readparms.'
126     endif
127    
128     do while ( .true. )
129     read(modeldataunit, fmt='(a)', end=1001) record
130     il = max(ilnblnk(record),1)
131     if ( record(1:1) .ne. commentcharacter )
132     & write(unit=scrunit1, fmt='(a)') record(:il)
133     enddo
134     1001 continue
135    
136     close( modeldataunit )
137    
138     rewind( scrunit1 )
139     read(unit = scrunit1, nml = cal_nml)
140     close( scrunit1 )
141    
142    
143 edhill 1.5 c Check consistency of the date specifications with the MITgcm
144 heimbach 1.2 c startTime, endTime, and nTimeSteps, then set all the calendar
145     c parameters.
146    
147     modstart = startTime
148     modend = endTime
149     modstep = deltaTclock
150     moditerini = nIter0
151     moditerend = nEndIter
152     modintsteps = nTimeSteps
153    
154     call cal_Set(
155     I modstart,
156     I modend,
157     I modstep,
158     I TheCalendar,
159     I startdate_1,
160     I startdate_2,
161     I enddate_1,
162     I enddate_2,
163     I moditerini,
164     I moditerend,
165     I modintsteps,
166     I mythid
167     & )
168    
169     call cal_Summary( mythid )
170    
171     _END_MASTER(myThid)
172    
173     c Everyone else must wait for the parameters to be loaded
174     _BARRIER
175    
176     return
177     end

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