| 1 |
C $Header: /u/gcmpack/MITgcm/pkg/ctrl/ctrl_get_gen_rec.F,v 1.8 2011/01/19 08:31:21 mlosch Exp $ |
| 2 |
C $Name: $ |
| 3 |
|
| 4 |
#include "PACKAGES_CONFIG.h" |
| 5 |
#include "CTRL_CPPOPTIONS.h" |
| 6 |
|
| 7 |
|
| 8 |
subroutine ctrl_get_gen_rec( |
| 9 |
I xx_genstartdate, |
| 10 |
I xx_genperiod, |
| 11 |
O fac, |
| 12 |
O first, |
| 13 |
O changed, |
| 14 |
O count0, |
| 15 |
O count1, |
| 16 |
I mytime, |
| 17 |
I myiter, |
| 18 |
I mythid |
| 19 |
& ) |
| 20 |
|
| 21 |
c ================================================================== |
| 22 |
c SUBROUTINE ctrl_get_gen_rec |
| 23 |
c ================================================================== |
| 24 |
c |
| 25 |
c o Get flags, counters, and the linear interpolation factor for a |
| 26 |
c given control vector contribution. |
| 27 |
c o New, generic, for new routine ctrl_get_gen |
| 28 |
c |
| 29 |
c ================================================================== |
| 30 |
c SUBROUTINE ctrl_get_gen_rec |
| 31 |
c ================================================================== |
| 32 |
|
| 33 |
implicit none |
| 34 |
|
| 35 |
c == global variables == |
| 36 |
|
| 37 |
#include "EEPARAMS.h" |
| 38 |
#include "SIZE.h" |
| 39 |
|
| 40 |
#include "ctrl.h" |
| 41 |
#ifdef ALLOW_CAL |
| 42 |
# include "cal.h" |
| 43 |
#endif |
| 44 |
#include "PARAMS.h" |
| 45 |
|
| 46 |
c == routine arguments == |
| 47 |
|
| 48 |
integer xx_genstartdate(4) |
| 49 |
_RL xx_genperiod |
| 50 |
_RL fac |
| 51 |
logical first |
| 52 |
logical changed |
| 53 |
integer count0 |
| 54 |
integer count1 |
| 55 |
_RL mytime |
| 56 |
integer myiter |
| 57 |
integer mythid |
| 58 |
|
| 59 |
c == local variables == |
| 60 |
|
| 61 |
#ifdef ALLOW_CAL |
| 62 |
|
| 63 |
integer mydate(4) |
| 64 |
integer previousdate(4) |
| 65 |
integer difftime(4) |
| 66 |
|
| 67 |
integer fldcount |
| 68 |
_RL fldsecs |
| 69 |
integer prevfldcount |
| 70 |
_RL prevfldsecs |
| 71 |
integer flddate(4) |
| 72 |
|
| 73 |
integer fldstartdate(4) |
| 74 |
_RL fldperiod |
| 75 |
|
| 76 |
integer startrec |
| 77 |
|
| 78 |
logical lArgErr |
| 79 |
#else |
| 80 |
C Declarations for code, adapted from external_fields_load, |
| 81 |
C for simplied default model calendar without exf/cal |
| 82 |
_RL rdt |
| 83 |
_RL tmp1Wght, tmp2Wght |
| 84 |
_RL myRelTime |
| 85 |
INTEGER nForcingPeriods,Imytm,Ifprd,Ifcyc,Iftm |
| 86 |
#endif |
| 87 |
|
| 88 |
#ifdef ECCO_VERBOSE |
| 89 |
character*(max_len_mbuf) msgbuf |
| 90 |
#endif |
| 91 |
|
| 92 |
c == end of interface == |
| 93 |
|
| 94 |
#ifdef ALLOW_CAL |
| 95 |
lArgErr = .true. |
| 96 |
fldperiod = 0. |
| 97 |
|
| 98 |
c Map the field parameters. |
| 99 |
|
| 100 |
call cal_CopyDate( |
| 101 |
I xx_genstartdate, |
| 102 |
O fldstartdate, |
| 103 |
I mythid |
| 104 |
& ) |
| 105 |
fldperiod = xx_genperiod |
| 106 |
lArgErr = .false. |
| 107 |
|
| 108 |
c-- Check the field argument. |
| 109 |
if ( lArgErr ) then |
| 110 |
print*,' The subroutine *ctrl_get_gen_rec* has been called' |
| 111 |
print*,' with an illegal field specification.' |
| 112 |
stop ' ... stopped in ctrl_get_gen_rec.' |
| 113 |
endif |
| 114 |
|
| 115 |
c-- Determine the current date. |
| 116 |
call cal_GetDate( myiter, mytime, mydate, mythid ) |
| 117 |
|
| 118 |
c Determine first record: |
| 119 |
call cal_TimePassed( fldstartdate, modelstartdate, |
| 120 |
& difftime, mythid ) |
| 121 |
call cal_ToSeconds ( difftime, fldsecs, mythid ) |
| 122 |
startrec = int((modelstart + startTime - fldsecs)/ |
| 123 |
& fldperiod) + 1 |
| 124 |
|
| 125 |
c Determine the flux record just before mycurrentdate. |
| 126 |
call cal_TimePassed( fldstartdate, mydate, difftime, |
| 127 |
& mythid ) |
| 128 |
call cal_ToSeconds( difftime, fldsecs, mythid ) |
| 129 |
fldsecs = int((fldsecs+0.5)/fldperiod)*fldperiod |
| 130 |
fldcount = int((fldsecs+0.5)/fldperiod) + 1 |
| 131 |
|
| 132 |
c Set switches for reading new records. |
| 133 |
first = ((mytime - modelstart) .lt. 0.5*modelstep) |
| 134 |
|
| 135 |
if ( first) then |
| 136 |
changed = .false. |
| 137 |
else |
| 138 |
call cal_GetDate( myiter-1, mytime-modelstep, |
| 139 |
& previousdate, mythid ) |
| 140 |
|
| 141 |
call cal_TimePassed( fldstartdate, previousdate, |
| 142 |
& difftime, mythid ) |
| 143 |
call cal_ToSeconds( difftime, prevfldsecs, mythid ) |
| 144 |
prevfldsecs = int((prevfldsecs+0.5)/fldperiod)*fldperiod |
| 145 |
prevfldcount = int((prevfldsecs+0.5)/fldperiod) + 1 |
| 146 |
|
| 147 |
if (fldcount .ne. prevfldcount) then |
| 148 |
changed = .true. |
| 149 |
else |
| 150 |
changed = .false. |
| 151 |
endif |
| 152 |
endif |
| 153 |
|
| 154 |
c count0 = fldcount |
| 155 |
c count1 = fldcount + 1 |
| 156 |
count0 = fldcount - startrec + 1 |
| 157 |
count1 = fldcount - startrec + 2 |
| 158 |
|
| 159 |
call cal_TimeInterval( fldsecs, 'secs', difftime, mythid ) |
| 160 |
call cal_AddTime( fldstartdate, difftime, flddate, mythid ) |
| 161 |
call cal_TimePassed( flddate, mydate, difftime, mythid ) |
| 162 |
call cal_ToSeconds( difftime, fldsecs, mythid ) |
| 163 |
|
| 164 |
c Weight belonging to irec for linear interpolation purposes. |
| 165 |
c Note: The weight as chosen here is 1. - fac of the "old" |
| 166 |
c MITgcm estimation program. |
| 167 |
fac = 1. - fldsecs/fldperiod |
| 168 |
|
| 169 |
#else /* not ALLOW_CAL */ |
| 170 |
C Code, adapted from external_fields_load, for simplied |
| 171 |
C default model calendar without exf/cal, but |
| 172 |
C based on myTime, myIter, deltaTclock, externForcingCycle, and startTime |
| 173 |
|
| 174 |
myRelTime = myTime - startTime |
| 175 |
first = (myRelTime .lt. 0.5*deltaTClock) |
| 176 |
if ( xx_genperiod .eq. 0. _d 0 |
| 177 |
& .or. externForcingCycle .eq. 0. _d 0 ) then |
| 178 |
C control parameter is constant in time and only needs to be updated |
| 179 |
C once in the beginning |
| 180 |
changed = .false. |
| 181 |
count0 = 1 |
| 182 |
count1 = 1 |
| 183 |
fac = 1. _d 0 |
| 184 |
else |
| 185 |
if ( first ) changed = .false. |
| 186 |
|
| 187 |
nForcingPeriods = NINT(externForcingCycle/xx_genperiod) |
| 188 |
|
| 189 |
rdt = 1. _d 0 / deltaTclock |
| 190 |
Imytm = NINT(myRelTime*rdt) |
| 191 |
Ifprd = NINT(xx_genperiod*rdt) |
| 192 |
Ifcyc = NINT(externForcingCycle*rdt) |
| 193 |
Imytm = Imytm + Ifcyc*( 1 - NINT(myRelTime/externForcingCycle) ) |
| 194 |
Iftm = MOD( Imytm+Ifcyc-Ifprd/2, Ifcyc) |
| 195 |
|
| 196 |
count0 = 1 + INT(Iftm/Ifprd) |
| 197 |
count1 = 1 + MOD(count0,nForcingPeriods) |
| 198 |
C-jmc: with some option of g77, FLOAT results in real*4 evaluation |
| 199 |
C of aWght; using DFLOAT always force real*8 computation: |
| 200 |
c aWght = DFLOAT( Iftm-Ifprd*(intime0 - 1) ) / DFLOAT( Ifprd ) |
| 201 |
C-ph: however, TAF doesnt recognize DFLOAT, |
| 202 |
C-jmc: so let me try this: |
| 203 |
tmp1Wght = FLOAT( Iftm-Ifprd*(count0 - 1) ) |
| 204 |
tmp2Wght = FLOAT( Ifprd ) |
| 205 |
fac = 1. _d 0 - tmp1Wght / tmp2Wght |
| 206 |
|
| 207 |
if ( Iftm-Ifprd*(count0-1) .eq. 0 |
| 208 |
& ) then |
| 209 |
changed = .true. |
| 210 |
else |
| 211 |
changed = .false. |
| 212 |
endif |
| 213 |
|
| 214 |
endif |
| 215 |
|
| 216 |
#endif /* ALLOW_CAL */ |
| 217 |
|
| 218 |
#ifdef ECCO_VERBOSE |
| 219 |
c Do some printing for the protocol. |
| 220 |
_BEGIN_MASTER( mythid ) |
| 221 |
write(msgbuf,'(a)') ' ' |
| 222 |
call print_message( msgbuf, standardmessageunit, |
| 223 |
& SQUEEZE_RIGHT , mythid) |
| 224 |
write(msgbuf,'(a,2x,l2,2x,l2,2x,D15.8)') |
| 225 |
& ' first, changed, fac:', |
| 226 |
& first, changed, fac |
| 227 |
call print_message( msgbuf, standardmessageunit, |
| 228 |
& SQUEEZE_RIGHT , mythid) |
| 229 |
write(msgbuf,'(a,i4,i4)') |
| 230 |
& ' count0, count1:', |
| 231 |
& count0, count1 |
| 232 |
call print_message( msgbuf, standardmessageunit, |
| 233 |
& SQUEEZE_RIGHT , mythid) |
| 234 |
write(msgbuf,'(a)') ' ' |
| 235 |
call print_message( msgbuf, standardmessageunit, |
| 236 |
& SQUEEZE_RIGHT , mythid) |
| 237 |
_END_MASTER( mythid ) |
| 238 |
#endif |
| 239 |
|
| 240 |
return |
| 241 |
end |
Parent Directory
| 
Revision Log
| 
Revision Graph