| 1 |
C $Header: /u/gcmpack/MITgcm_contrib/mlosch/optim_m1qn3/optim_readparms.F,v 1.4 2012/04/27 09:45:03 mlosch Exp $ |
| 2 |
C $Name: $ |
| 3 |
|
| 4 |
c Include ECCO_CPPOPTIONS because the ecco_ctrl,cost files |
| 5 |
c have headers with options for OBCS masks. |
| 6 |
#include "ECCO_CPPOPTIONS.h" |
| 7 |
|
| 8 |
subroutine optim_readparms( |
| 9 |
O nn, ff |
| 10 |
& ) |
| 11 |
|
| 12 |
c ================================================================== |
| 13 |
c subroutine optim_readparms |
| 14 |
c ================================================================== |
| 15 |
c |
| 16 |
c o Read namelist files and |
| 17 |
c o read the number of control variables and return it as nn |
| 18 |
c o read the cost function value from ctrlname and return as ff, |
| 19 |
c note that this value is only meaning full in the first iteration |
| 20 |
c |
| 21 |
c ================================================================== |
| 22 |
|
| 23 |
implicit none |
| 24 |
|
| 25 |
c == global variables == |
| 26 |
|
| 27 |
#include "EEPARAMS.h" |
| 28 |
#include "SIZE.h" |
| 29 |
#include "ctrl.h" |
| 30 |
#include "optim.h" |
| 31 |
|
| 32 |
c == routine arguments == |
| 33 |
|
| 34 |
integer nn |
| 35 |
|
| 36 |
c == local variables == |
| 37 |
|
| 38 |
integer il |
| 39 |
integer errio |
| 40 |
|
| 41 |
_RL ff |
| 42 |
_RL dfminFrac |
| 43 |
|
| 44 |
#ifdef DYNAMIC |
| 45 |
_RL vv(nn) |
| 46 |
#else |
| 47 |
integer nmax |
| 48 |
parameter( nmax = MAX_INDEPEND ) |
| 49 |
_RL vv(nmax) |
| 50 |
#endif |
| 51 |
|
| 52 |
character*(max_len_prec) record |
| 53 |
|
| 54 |
c == external == |
| 55 |
|
| 56 |
integer ilnblnk |
| 57 |
|
| 58 |
c == end of interface == |
| 59 |
|
| 60 |
namelist /CTRL_PACKNAMES/ |
| 61 |
& yadmark, ctrlname, costname, scalname, maskname, metaname, |
| 62 |
& yctrlid, yctrlposunpack, yctrlpospack |
| 63 |
|
| 64 |
namelist /OPTIM/ |
| 65 |
& optimcycle, |
| 66 |
& numiter, nfunc, fmin, dfminFrac, iprint, |
| 67 |
& epsf, epsx, epsg, |
| 68 |
& nupdate, eps |
| 69 |
|
| 70 |
c-- Preset the optimization parameters. |
| 71 |
optimcycle = 0 |
| 72 |
nvars = 0 |
| 73 |
numiter = 1 |
| 74 |
nfunc = 1 |
| 75 |
fmin = UNSET_RL |
| 76 |
dfminFrac = 0.0 |
| 77 |
iprint = 10 |
| 78 |
epsx = 1.e-6 |
| 79 |
epsg = 1.e-6 |
| 80 |
eps = -1.e-6 |
| 81 |
nupdate = 1 |
| 82 |
ff = 0. |
| 83 |
cdfer expId = 'MIT_CE_000' |
| 84 |
yctrlid = 'MIT_CE_000' |
| 85 |
|
| 86 |
modeldataunit = 14 |
| 87 |
scrunit1 = 11 |
| 88 |
|
| 89 |
c-- Read control parameters from file. |
| 90 |
open(unit=scrunit1,status='scratch') |
| 91 |
|
| 92 |
open(unit = modeldataunit,file = 'data.ctrl', |
| 93 |
& status = 'old', iostat = errio) |
| 94 |
if ( errio .lt. 0 ) then |
| 95 |
stop ' stopped in optim_readparms while opening data.ctrl' |
| 96 |
endif |
| 97 |
|
| 98 |
do while ( .true. ) |
| 99 |
read(modeldataunit, fmt='(a)', end=21) record |
| 100 |
il = max(ilnblnk(record),1) |
| 101 |
if ( record(1:1) .ne. commentcharacter ) |
| 102 |
& write(unit=scrunit1, fmt='(a)') record(:il) |
| 103 |
enddo |
| 104 |
21 continue |
| 105 |
close( modeldataunit ) |
| 106 |
|
| 107 |
rewind( scrunit1 ) |
| 108 |
read(unit = scrunit1, nml = ctrl_packnames) |
| 109 |
close( scrunit1 ) |
| 110 |
print*, ' OPTIM_READPARMS: Control options have been read.' |
| 111 |
|
| 112 |
c-- Read optimization parameters from file. |
| 113 |
open(unit=scrunit1,status='scratch') |
| 114 |
|
| 115 |
open(unit = modeldataunit,file = 'data.optim', |
| 116 |
& status = 'old', iostat = errio) |
| 117 |
if ( errio .lt. 0 ) then |
| 118 |
stop ' stopped in optim_readparms while opening data.optim' |
| 119 |
endif |
| 120 |
|
| 121 |
do while ( .true. ) |
| 122 |
read(modeldataunit, fmt='(a)', end=22) record |
| 123 |
il = max(ilnblnk(record),1) |
| 124 |
if ( record(1:1) .ne. commentcharacter ) |
| 125 |
& write(unit=scrunit1, fmt='(a)') record(:il) |
| 126 |
enddo |
| 127 |
22 continue |
| 128 |
close( modeldataunit ) |
| 129 |
|
| 130 |
rewind( scrunit1 ) |
| 131 |
read(unit = scrunit1, nml = optim) |
| 132 |
close( scrunit1 ) |
| 133 |
print*, ' OPTIM_READPARMS: Minimization options have been read.' |
| 134 |
|
| 135 |
if (eps .gt. 0.0) then |
| 136 |
epsf = eps |
| 137 |
epsx = eps |
| 138 |
epsg = eps |
| 139 |
endif |
| 140 |
|
| 141 |
call optim_readdata ( nn, ctrlname, .true., ff, vv) |
| 142 |
|
| 143 |
if ( dfminFrac.lt.0.0 .or. dfminFrac.ge.1.0) then |
| 144 |
print*, ' OPTIM_READPARMS: dfminFrac = ', dfminFrac, |
| 145 |
& ' should be > 0 and < 1' |
| 146 |
stop 'S/R OPTIM_READPARMS: ABNORMAL END' |
| 147 |
endif |
| 148 |
if ( dfminFrac.ne.0.0 ) dfminFrac = 1.0 - dfminFrac |
| 149 |
if ( fmin.eq.UNSET_RL ) then |
| 150 |
if ( optimcycle .eq. 0 ) then |
| 151 |
c only in this case does ff contain the actual cost function value |
| 152 |
fmin = dfminFrac*ff |
| 153 |
else |
| 154 |
c otherwise we (ab-)use the file ctrlname for storing fmin |
| 155 |
fmin = ff |
| 156 |
endif |
| 157 |
endif |
| 158 |
if ( optimcycle.eq.0 ) then |
| 159 |
if ( fmin.le.0.0 ) then |
| 160 |
print*, ' OPTIM_READPARMS: fmin = ', fmin, ' should be > 0' |
| 161 |
stop 'S/R OPTIM_READPARMS: ABNORMAL END' |
| 162 |
endif |
| 163 |
if ( fmin.lt.ff ) then |
| 164 |
print*, ' OPTIM_READPARMS: fmin = ', fmin, |
| 165 |
& ' should be < ff = ', ff |
| 166 |
stop 'S/R OPTIM_READPARMS: ABNORMAL END' |
| 167 |
endif |
| 168 |
endif |
| 169 |
|
| 170 |
c-- Do some final printout. |
| 171 |
print* |
| 172 |
print*, ' OPTIM_READPARMS: Iteration number = ', optimcycle |
| 173 |
print*, ' number of control variables = ', nn |
| 174 |
print*, ' cost function value in ', ctrlname, ' = ', ff |
| 175 |
print '(a,4a,i4.4)', |
| 176 |
& ' Data will be read from the following file: ', |
| 177 |
& ctrlname,'_',yctrlid(1:10),'.opt', optimcycle |
| 178 |
print* |
| 179 |
|
| 180 |
return |
| 181 |
end |
| 182 |
|
| 183 |
CStartOfInterface |
| 184 |
INTEGER FUNCTION ILNBLNK( string ) |
| 185 |
C /==========================================================\ |
| 186 |
C | FUNCTION ILNBLNK | |
| 187 |
C | o Find last non-blank in character string. | |
| 188 |
C \==========================================================/ |
| 189 |
IMPLICIT NONE |
| 190 |
CHARACTER*(*) string |
| 191 |
CEndOfInterface |
| 192 |
INTEGER L, LS |
| 193 |
C |
| 194 |
LS = LEN(string) |
| 195 |
ILNBLNK = LS |
| 196 |
DO 10 L = LS, 1, -1 |
| 197 |
IF ( string(L:L) .EQ. ' ' ) GOTO 10 |
| 198 |
ILNBLNK = L |
| 199 |
GOTO 11 |
| 200 |
10 CONTINUE |
| 201 |
11 CONTINUE |
| 202 |
C |
| 203 |
RETURN |
| 204 |
END |
| 205 |
|
Parent Directory
| 
Revision Log
| 
Revision Graph