/[MITgcm]/MITgcm/eesupp/src/eeset_parms.F
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Contents of /MITgcm/eesupp/src/eeset_parms.F

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Revision 1.1 - (show annotations) (download)
Wed Apr 22 19:15:30 1998 UTC (26 years ago) by cnh
Branch: MAIN
Branch point for: cnh
Initial revision

1 C $Id$
2
3 #include "CPP_EEOPTIONS.h"
4
5 CStartOfInterface
6 SUBROUTINE EESET_PARMS
7 C /==========================================================\
8 C | SUBROUTINE EESET_PARMS |
9 C | o Routine to set model "parameters" |
10 C |==========================================================|
11 C | This routine is called from the high-level wrapper |
12 C | after multi-process paralle processing has started but |
13 C | before multi-threaded parallelism. THe routine reads an |
14 C | an "execution environment" input parameter file holding |
15 C | information about the number of threads at run-time. |
16 C \==========================================================/
17
18 C === Global variables ===
19 #include "SIZE.h"
20 #include "EEPARAMS.h"
21 #include "EESUPPORT.h"
22 CEndOfInterface
23
24 C === Local variables ===
25 C K - Loop counter
26 C iUnit - Work variable for IO unit number
27 C errIO - IO unit error flag
28 INTEGER K, IL
29 INTEGER errIO
30 INTEGER iUnit
31 CHARACTER*(MAX_LEN_MBUF) msgBuf
32 CHARACTER*(MAX_LEN_PREC) record
33 INTEGER IFNBLNK
34 EXTERNAL IFNBLNK
35 INTEGER ILNBLNK
36 EXTERNAL ILNBLNK
37 NAMELIST /EEPARMS/
38 & nTx, nTy
39
40
41 C-- For now these options are fixed as the code does
42 C not fully support features for overlapping communication
43 C and computation.
44 usingSyncMessages = .TRUE.
45
46 C-- The remaining parameters here are set to default values.
47 C-- and then any different values are read from an input
48 C-- file called "eedata".
49 C The defaults set here are for serial execution.
50 C
51 C nTx and nTy are the number of threads in the X and Y
52 C directions.
53 C nSx/nTx and nSy/nTy be whole numbers at present.
54 C
55 C notUsingXPeriodicity and notUsingYPeriodicity affect
56 C the identifying of neighbor processes in a multi-process
57 C mode. On the whole the numerical model code should not
58 C customise itself based on these numbers as they may be
59 C removed if they do not prove useful.
60 C
61 C usingMPI is a flag which controls whether MPI message
62 C passing library calls are actually made. Note that under
63 C MPI it is necessary to start a program a special way -
64 C normally using a command of the form
65 C % mpirun program_name
66 C If usingMPI is set to TRUE but % mpirun .... was not
67 C used to launch the program then an internal MPI error
68 C may be generated when the first MPI call ( CALL MPI_Init )
69 C is made.
70 C
71 notUsingXPeriodicity = .FALSE.
72 notUsingYPeriodicity = .FALSE.
73 usingMPI = .FALSE.
74 nTx = 2
75 nTy = 2
76
77 C-- Read in data from eedata file
78 C We really ought to be using our environment file reading
79 C package - but we haven't written it yet.
80
81 C Make scratch copies of input data file with and without comments
82 OPEN(UNIT=scrUnit1,STATUS='SCRATCH')
83 OPEN(UNIT=scrUnit2,STATUS='SCRATCH')
84 OPEN(UNIT=eeDataUnit,FILE='eedata',STATUS='OLD',err=1,IOSTAT=errIO)
85 IF ( errIO .GE. 0 ) GOTO 2
86 1 CONTINUE
87 WRITE(msgBuf,'(A)')
88 & 'S/R EESET_PARMS'
89 CALL PRINT_ERROR( msgBuf , 1)
90 WRITE(msgBuf,'(A)')
91 & 'Unable to open execution environment'
92 CALL PRINT_ERROR( msgBuf , 1)
93 WRITE(msgBuf,'(A)')
94 & 'parameter file "eedata"'
95 CALL PRINT_ERROR( msgBuf , 1)
96 CALL EEDATA_EXAMPLE
97 STOP 'ABNORMAL END: S/R EESET_PARMS'
98 2 CONTINUE
99 1000 CONTINUE
100 READ(eeDataUnit,FMT='(A)',END=1001) RECORD
101 IL = MAX(ILNBLNK(RECORD),1)
102 IF ( RECORD(1:1) .NE. commentCharacter )
103 & WRITE(UNIT=scrUnit1,FMT='(A)') RECORD(:IL)
104 WRITE(UNIT=scrUnit2,FMT='(A)') RECORD(:IL)
105 GOTO 1000
106 1001 CONTINUE
107 CLOSE(eeDataUnit)
108 C-- Report contents of parameter file
109 WRITE(msgBuf,'(A)') '// ======================================================='
110 CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, SQUEEZE_RIGHT , 1)
111 WRITE(msgBuf,'(A)') '// Execution Environment parameter file "eedata"'
112 CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, SQUEEZE_RIGHT , 1)
113 WRITE(msgBuf,'(A)') '// ======================================================='
114 CALL PRINT_MESSAGE( msgBuf, standardMessageUnit,
115 & SQUEEZE_RIGHT , 1)
116
117 iUnit = scrUnit2
118 REWIND(iUnit)
119 2000 CONTINUE
120 READ(UNIT=iUnit,FMT='(A)',END=2001) RECORD
121 IL = MAX(ILNBLNK(RECORD),1)
122 WRITE(msgBuf,'(A,A)') '>',RECORD(:IL)
123 CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, SQUEEZE_RIGHT , 1)
124 GOTO 2000
125 2001 CONTINUE
126 CLOSE(iUnit)
127
128 WRITE(msgBuf,'(A)') ' '
129 CALL PRINT_MESSAGE( msgBuf, standardMessageUnit,
130 & SQUEEZE_RIGHT , 1)
131
132 iUnit = scrUnit1
133 REWIND(iUnit)
134 READ(UNIT=iUnit,NML=EEPARMS,IOSTAT=errIO,err=3)
135 IF ( errIO .GE. 0 ) GOTO 4
136 3 CONTINUE
137 WRITE(msgBuf,'(A)')
138 & 'S/R EESET_PARMS'
139 CALL PRINT_ERROR( msgBuf , 1)
140 WRITE(msgBuf,'(A)')
141 & 'Error reading execution environment '
142 CALL PRINT_ERROR( msgBuf , 1)
143 WRITE(msgBuf,'(A)')
144 & 'parameter file "eedata"'
145 CALL PRINT_ERROR( msgBuf , 1)
146 CALL EEDATA_EXAMPLE
147 STOP 'ABNORMAL END: S/R EESET_PARMS'
148 4 CONTINUE
149
150 Cdbg eeDataUnit = 42
151 Cdbg OPEN(UNIT=eeDataUnit,FILE='eedata',STATUS='OLD',IOSTAT=errIO)
152 Cdbg IF ( errIO .LT. 0 ) GOTO 11
153 Cdbg DO K=1, 10
154 Cdbg READ(eedataUnit,IOSTAT=errIO)
155 Cdbg IF ( errIO .LT. 0 ) GOTO 11
156 Cdbg ENDDO
157 Cdbg READ(eedataUnit,FMT='(30X,1X,L23)',IOSTAT=errIO) notUsingXPeriodicity
158 Cdbg IF ( errIO .LT. 0 ) GOTO 11
159 Cdbg READ(eedataUnit,FMT='(30X,1X,L23)',IOSTAT=errIO) notUsingYPeriodicity
160 Cdbg IF ( errIO .LT. 0 ) GOTO 11
161 Cdbg READ(eedataUnit,FMT='(30X,1X,L23)',IOSTAT=errIO) usingMPI
162 Cdbg IF ( errIO .LT. 0 ) GOTO 11
163 Cdbg READ(eedataUnit,FMT='(30X,1X,I3)',IOSTAT=errIO) nTx
164 Cdbg IF ( errIO .LT. 0 ) GOTO 11
165 Cdbg READ(eedataUnit,FMT='(30X,1X,I3)',IOSTAT=errIO) nTy
166
167
168 Cdbg IF (errIO .LT. 0 ) eeBootError = .TRUE.
169 Cdbg CLOSE(eeDataUnit,IOSTAT=errIO)
170 Cdbg IF ( eeBootError .OR. errIO .LT. 0 ) THEN
171 C-- Report that an error occured
172 Cdbg eeBootError = .TRUE.
173 Cdbg WRITE(msgBuf,'(A)' )
174 Cdbg & 'S/R EESET_PARMS: Error reading "eedata" execution environment file'
175 Cdbg CALL PRINT_ERROR( msgBuf , 1)
176 Cdbg ELSE
177 C-- Write summary of settings that were selected
178 Cdbg ENDIF
179 C
180 C
181 RETURN
182 END
183
184 C $Id: $

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