source: trunk/WRF.COMMON/WRFV2/external/esmf_time_f90/Meat.F90 @ 2756

Last change on this file since 2756 was 11, checked in by aslmd, 14 years ago

spiga@svn-planeto:ajoute le modele meso-echelle martien

File size: 26.2 KB
Line 
1#include <ESMF_TimeMgr.inc>
2
3! Factor so abs(Sn) < Sd and ensure that signs of S and Sn match. 
4! Also, enforce consistency. 
5! YR and MM fields are ignored. 
6SUBROUTINE normalize_basetime( basetime )
7  USE esmf_basemod
8  USE esmf_basetimemod
9  IMPLICIT NONE
10  TYPE(ESMF_BaseTime), INTENT(INOUT) :: basetime
11!PRINT *,'DEBUG:  BEGIN normalize_basetime()'
12  ! Consistency check... 
13  IF ( basetime%Sd < 0 ) THEN
14    CALL wrf_error_fatal( &
15      'normalize_basetime:  denominator of seconds cannot be negative' )
16  ENDIF
17  IF ( ( basetime%Sd == 0 ) .AND. ( basetime%Sn .NE. 0 ) ) THEN
18    CALL wrf_error_fatal( &
19      'normalize_basetime:  denominator of seconds cannot be zero when numerator is non-zero' )
20  ENDIF
21  ! factor so abs(Sn) < Sd
22  IF ( basetime%Sd > 0 ) THEN
23    IF ( ABS( basetime%Sn ) .GE. basetime%Sd ) THEN
24!PRINT *,'DEBUG:  normalize_basetime() A1:  S,Sn,Sd = ',basetime%S,basetime%Sn,basetime%Sd
25      basetime%S = basetime%S + ( basetime%Sn / basetime%Sd )
26      basetime%Sn = mod( basetime%Sn, basetime%Sd )
27!PRINT *,'DEBUG:  normalize_basetime() A2:  S,Sn,Sd = ',basetime%S,basetime%Sn,basetime%Sd
28    ENDIF
29    ! change sign of Sn if it does not match S
30    IF ( ( basetime%S > 0 ) .AND. ( basetime%Sn < 0 ) ) THEN
31!PRINT *,'DEBUG:  normalize_basetime() B1:  S,Sn,Sd = ',basetime%S,basetime%Sn,basetime%Sd
32      basetime%S = basetime%S - 1_ESMF_KIND_I8
33      basetime%Sn = basetime%Sn + basetime%Sd
34!PRINT *,'DEBUG:  normalize_basetime() B2:  S,Sn,Sd = ',basetime%S,basetime%Sn,basetime%Sd
35    ENDIF
36    IF ( ( basetime%S < 0 ) .AND. ( basetime%Sn > 0 ) ) THEN
37!PRINT *,'DEBUG:  normalize_basetime() C1:  S,Sn,Sd = ',basetime%S,basetime%Sn,basetime%Sd
38      basetime%S = basetime%S + 1_ESMF_KIND_I8
39      basetime%Sn = basetime%Sn - basetime%Sd
40!PRINT *,'DEBUG:  normalize_basetime() C2:  S,Sn,Sd = ',basetime%S,basetime%Sn,basetime%Sd
41    ENDIF
42  ENDIF
43!PRINT *,'DEBUG:  END normalize_basetime()'
44END SUBROUTINE normalize_basetime
45
46
47
48! A normalized time has time%basetime >= 0, time%basetime less than the current
49! year expressed as a timeInterval, and time%YR can take any value
50SUBROUTINE normalize_time( time )
51  USE esmf_basemod
52  USE esmf_basetimemod
53  USE esmf_timemod
54  IMPLICIT NONE
55  TYPE(ESMF_Time), INTENT(INOUT) :: time
56  INTEGER(ESMF_KIND_I8) :: nsecondsinyear
57  ! locals
58  TYPE(ESMF_BaseTime) :: cmptime, zerotime
59  INTEGER :: rc
60  LOGICAL :: done
61
62  ! first, normalize basetime
63  ! this will force abs(Sn) < Sd and ensure that signs of S and Sn match
64  CALL normalize_basetime( time%basetime )
65
66!$$$ add tests for these edge cases
67
68  ! next, underflow negative seconds into YEARS
69  ! time%basetime must end up non-negative
70!$$$ push this down into ESMF_BaseTime constructor
71  zerotime%S  = 0
72  zerotime%Sn = 0
73  zerotime%Sd = 0
74  DO WHILE ( time%basetime < zerotime )
75    time%YR = time%YR - 1
76!$$$ push this down into ESMF_BaseTime constructor
77    cmptime%S  = nsecondsinyear( time%YR )
78    cmptime%Sn = 0
79    cmptime%Sd = 0
80    time%basetime = time%basetime + cmptime
81  ENDDO
82
83  ! next, overflow seconds into YEARS
84  done = .FALSE.
85  DO WHILE ( .NOT. done )
86!$$$ push this down into ESMF_BaseTime constructor
87    cmptime%S  = nsecondsinyear( time%YR )
88    cmptime%Sn = 0
89    cmptime%Sd = 0
90    IF ( time%basetime >= cmptime ) THEN
91      time%basetime = time%basetime - cmptime
92      time%YR = time%YR + 1
93    ELSE
94      done = .TRUE.
95    ENDIF
96  ENDDO
97END SUBROUTINE normalize_time
98
99
100
101SUBROUTINE normalize_timeint( timeInt )
102  USE esmf_basetimemod
103  USE esmf_timeintervalmod
104  IMPLICIT NONE
105  TYPE(ESMF_TimeInterval), INTENT(INOUT) :: timeInt
106
107  ! normalize basetime
108  ! this will force abs(Sn) < Sd and ensure that signs of S and Sn match
109  ! YR and MM are ignored
110  CALL normalize_basetime( timeInt%basetime )
111END SUBROUTINE normalize_timeint
112
113
114
115
116FUNCTION signnormtimeint ( timeInt )
117  ! Compute the sign of a time interval. 
118  ! YR and MM fields are *IGNORED*. 
119  ! returns 1, 0, or -1 or exits if timeInt fields have inconsistent signs.
120  USE esmf_basemod
121  USE esmf_basetimemod
122  USE esmf_timeintervalmod
123  IMPLICIT NONE
124  TYPE(ESMF_TimeInterval), INTENT(IN) :: timeInt
125  INTEGER :: signnormtimeint
126  LOGICAL :: positive, negative
127
128  positive = .FALSE.
129  negative = .FALSE.
130  signnormtimeint = 0
131  ! Note that Sd is required to be non-negative.  This is enforced in
132  ! normalize_timeint(). 
133  ! Note that Sn is required to be zero when Sd is zero.  This is enforced
134  ! in normalize_timeint(). 
135  IF ( ( timeInt%basetime%S > 0 ) .OR. &
136       ( timeInt%basetime%Sn > 0 ) ) THEN
137    positive = .TRUE.
138  ENDIF
139  IF ( ( timeInt%basetime%S < 0 ) .OR. &
140       ( timeInt%basetime%Sn < 0 ) ) THEN
141    negative = .TRUE.
142  ENDIF
143  IF ( positive .AND. negative ) THEN
144    CALL wrf_error_fatal( &
145      'signnormtimeint:  signs of fields cannot be mixed' )
146  ELSE IF ( positive ) THEN
147    signnormtimeint = 1
148  ELSE IF ( negative ) THEN
149    signnormtimeint = -1
150  ENDIF
151END FUNCTION signnormtimeint
152
153
154! Exits with error message if timeInt is not normalized. 
155SUBROUTINE timeintchecknormalized( timeInt, msgstr )
156  USE esmf_timeintervalmod
157  IMPLICIT NONE
158  TYPE(ESMF_TimeInterval), INTENT(IN) :: timeInt
159  CHARACTER(LEN=*), INTENT(IN) :: msgstr
160  ! locals
161  CHARACTER(LEN=256) :: outstr
162  IF ( ( timeInt%YR /= 0 ) .OR. &
163       ( timeInt%MM /= 0 ) ) THEN
164    outstr = 'un-normalized TimeInterval not allowed:  '//TRIM(msgstr)
165    CALL wrf_error_fatal( outstr )
166  ENDIF
167END SUBROUTINE timeintchecknormalized
168
169
170! added from share/module_date_time in WRF.
171FUNCTION nfeb ( year ) RESULT (num_days)
172      ! Compute the number of days in February for the given year
173      IMPLICIT NONE
174      INTEGER :: year
175      INTEGER :: num_days
176!#ifdef NO_LEAP_CALENDAR
177!      num_days = 28 ! By default, February has 28 days ...
178!#else
179!      num_days = 28 ! By default, February has 28 days ...
180!      IF (MOD(year,4).eq.0) THEN
181!         num_days = 29  ! But every four years, it has 29 days ...
182!         IF (MOD(year,100).eq.0) THEN
183!            num_days = 28  ! Except every 100 years, when it has 28 days ...
184!            IF (MOD(year,400).eq.0) THEN
185!               num_days = 29  ! Except every 400 years, when it has 29 days.
186!            END IF
187!         END IF
188!      END IF
189!#endif
190num_days = 1
191! just to keep continuity
192END FUNCTION nfeb
193
194
195
196FUNCTION ndaysinyear ( year ) RESULT (num_diy)
197  ! Compute the number of days in the given year
198  IMPLICIT NONE
199  INTEGER, INTENT(IN) :: year
200  INTEGER :: num_diy
201!  INTEGER :: nfeb
202!  IF ( nfeb( year ) .EQ. 29 ) THEN
203!    num_diy = 366
204!  ELSE
205!    num_diy = 365
206!  ENDIF
207num_diy = 669
208END FUNCTION ndaysinyear
209
210
211
212FUNCTION nsecondsinyear ( year ) RESULT (numseconds)
213  ! Compute the number of seconds in the given year
214  USE esmf_basemod
215  IMPLICIT NONE
216  INTEGER, INTENT(IN) :: year
217  INTEGER(ESMF_KIND_I8) :: numseconds
218  INTEGER :: ndaysinyear
219  numseconds = SECONDS_PER_DAY * INT( ndaysinyear(year) , ESMF_KIND_I8 )
220END FUNCTION nsecondsinyear
221
222
223
224SUBROUTINE initdaym
225  USE esmf_basemod
226  USE esmf_basetimemod
227  USE ESMF_CalendarMod
228  IMPLICIT NONE
229  INTEGER i,j,m
230  m = 1
231  mdaycum(0) = 0
232!$$$ push this down into ESMF_BaseTime constructor
233  monthbdys(0)%S  = 0
234  monthbdys(0)%Sn = 0
235  monthbdys(0)%Sd = 0
236  DO i = 1,MONTHS_PER_YEAR
237    DO j = 1,mday(i)
238      daym(m) = i
239      m = m + 1
240    ENDDO
241    mdaycum(i) = mdaycum(i-1) + mday(i)
242!$$$ push this down into ESMF_BaseTime constructor
243    monthbdys(i)%S  = SECONDS_PER_DAY * INT( mdaycum(i), ESMF_KIND_I8 )
244    monthbdys(i)%Sn = 0
245    monthbdys(i)%Sd = 0
246  ENDDO
247  m = 1
248  mdayleapcum(0) = 0
249!$$$ push this down into ESMF_BaseTime constructor
250  monthbdysleap(0)%S  = 0
251  monthbdysleap(0)%Sn = 0
252  monthbdysleap(0)%Sd = 0
253  DO i = 1,MONTHS_PER_YEAR
254    DO j = 1,mdayleap(i)
255      daymleap(m) = i
256      m = m + 1
257    ENDDO
258    mdayleapcum(i) = mdayleapcum(i-1) + mdayleap(i)
259!$$$ push this down into ESMF_BaseTime constructor
260    monthbdysleap(i)%S  = SECONDS_PER_DAY * INT( mdayleapcum(i), ESMF_KIND_I8 )
261    monthbdysleap(i)%Sn = 0
262    monthbdysleap(i)%Sd = 0
263  ENDDO
264END SUBROUTINE initdaym
265
266
267!!$$$ useful, but not used at the moment... 
268!SUBROUTINE compute_dayinyear(YR,MM,DD,dayinyear)
269!  use ESMF_CalendarMod
270!IMPLICIT NONE
271!      INTEGER, INTENT(IN)  :: YR,MM,DD   ! DD is day of month
272!      INTEGER, INTENT(OUT) :: dayinyear
273!      INTEGER i
274!      integer nfeb
275!
276!      dayinyear = 0
277!      DO i = 1,MM-1
278!        if (i.eq.2) then
279!          dayinyear = dayinyear + nfeb(YR)
280!        else
281!          dayinyear = dayinyear + mday(i)
282!        endif
283!      ENDDO
284!      dayinyear = dayinyear + DD
285!END SUBROUTINE compute_dayinyear
286
287
288
289SUBROUTINE timegetmonth( time, MM )
290  USE esmf_basemod
291  USE esmf_basetimemod
292  USE esmf_timemod
293  USE esmf_calendarmod
294  IMPLICIT NONE
295  TYPE(ESMF_Time), INTENT(IN) :: time
296  INTEGER, INTENT(OUT) :: MM
297  ! locals
298  INTEGER :: nfeb
299  INTEGER :: i
300  TYPE(ESMF_BaseTime), POINTER :: MMbdys(:)
301!  IF ( nfeb(time%YR) == 29 ) THEN
302!    MMbdys => monthbdysleap
303!  ELSE
304    MMbdys => monthbdys
305!  ENDIF
306  MM = -1
307  DO i = 1,MONTHS_PER_YEAR
308    IF ( ( time%basetime >= MMbdys(i-1) ) .AND. ( time%basetime < MMbdys(i) ) ) THEN
309      MM = i
310      EXIT
311    ENDIF
312  ENDDO
313  IF ( MM == -1 ) THEN
314    CALL wrf_error_fatal( 'timegetmonth:  could not extract month of year from time' )
315  ENDIF
316END SUBROUTINE timegetmonth
317
318
319!$$$ may need to change dependencies in Makefile... 
320
321SUBROUTINE timegetdayofmonth( time, DD )
322  USE esmf_basemod
323  USE esmf_basetimemod
324  USE esmf_timemod
325  USE esmf_calendarmod
326  IMPLICIT NONE
327  TYPE(ESMF_Time), INTENT(IN) :: time
328  INTEGER, INTENT(OUT) :: DD
329  ! locals
330  INTEGER :: nfeb
331  INTEGER :: MM
332  TYPE(ESMF_BaseTime), POINTER :: MMbdys(:)
333  TYPE(ESMF_BaseTime) :: tmpbasetime
334!!$$$ fix this so init just points MMbdys to the one we want for this calendar?
335!  IF ( nfeb(time%YR) == 29 ) THEN
336    MMbdys => monthbdysleap
337!  ELSE
338!    MMbdys => monthbdys
339!  ENDIF
340  CALL timegetmonth( time, MM )
341  tmpbasetime = time%basetime - MMbdys(MM-1)
342  DD = ( tmpbasetime%S / SECONDS_PER_DAY ) + 1
343END SUBROUTINE timegetdayofmonth
344
345
346! Increment Time by number of seconds between start of year and start
347! of month MM. 
348! 1 <= MM <= 12
349! Time is NOT normalized. 
350SUBROUTINE timeaddmonths( time, MM, ierr )
351  USE esmf_basemod
352  USE esmf_basetimemod
353  USE esmf_timemod
354  USE esmf_calendarmod
355  IMPLICIT NONE
356  TYPE(ESMF_Time), INTENT(INOUT) :: time
357  INTEGER, INTENT(IN) :: MM
358  INTEGER, INTENT(OUT) :: ierr
359  ! locals
360  INTEGER :: nfeb
361  TYPE(ESMF_BaseTime), POINTER :: MMbdys(:)
362  ierr = ESMF_SUCCESS
363!  PRINT *,'DEBUG:  BEGIN timeaddmonths()'
364  IF ( ( MM < 1 ) .OR. ( MM > MONTHS_PER_YEAR ) ) THEN
365    CALL wrf_message( 'ERROR timeaddmonths():  MM out of range' )
366    ierr = ESMF_FAILURE
367  ENDIF
368!  PRINT *,'DEBUG:  timeaddmonths(): MM = ',MM
369!$$$ fix this so init just points MMbdys to the one we want for this calendar?
370!  PRINT *,'DEBUG:  timeaddmonths(): time%YR = ',time%YR
371!  PRINT *,'DEBUG:  timeaddmonths(): time%basetime%S = ',time%basetime%S
372!  PRINT *,'DEBUG:  timeaddmonths(): time%basetime%Sn = ',time%basetime%Sn
373!  PRINT *,'DEBUG:  timeaddmonths(): time%basetime%Sd = ',time%basetime%Sd
374!  IF ( nfeb(time%YR) == 29 ) THEN
375!!  PRINT *,'DEBUG:  timeaddmonths(): leap year'
376!    MMbdys => monthbdysleap
377!  ELSE
378!  PRINT *,'DEBUG:  timeaddmonths(): not leap year'
379    MMbdys => monthbdys
380!  ENDIF
381!  PRINT *,'DEBUG:  timeaddmonths(): done pointing to MMbdys'
382!  PRINT *,'DEBUG:  timeaddmonths(): MMbdys(',MM-1,')%S = ',MMbdys(MM-1)%S
383!  PRINT *,'DEBUG:  timeaddmonths(): MMbdys(',MM-1,')%Sn = ',MMbdys(MM-1)%Sn
384!  PRINT *,'DEBUG:  timeaddmonths(): MMbdys(',MM-1,')%Sd = ',MMbdys(MM-1)%Sd
385!$$$ dumps core here... 
386  time%basetime = time%basetime + MMbdys(MM-1)
387!  PRINT *,'DEBUG:  END timeaddmonths()'
388END SUBROUTINE timeaddmonths
389
390
391! Increment Time by number of seconds in the current month. 
392! Time is NOT normalized. 
393SUBROUTINE timeincmonth( time )
394  USE esmf_basemod
395  USE esmf_basetimemod
396  USE esmf_timemod
397  USE esmf_calendarmod
398  IMPLICIT NONE
399  TYPE(ESMF_Time), INTENT(INOUT) :: time
400  ! locals
401  INTEGER :: nfeb
402  INTEGER :: MM
403  CALL timegetmonth( time, MM )
404!  IF ( nfeb(time%YR) == 29 ) THEN
405!    time%basetime%S = time%basetime%S + &
406!      ( INT( mdayleap(MM), ESMF_KIND_I8 ) * SECONDS_PER_DAY )
407!  ELSE
408    time%basetime%S = time%basetime%S + &
409      ( INT( mday(MM), ESMF_KIND_I8 ) * SECONDS_PER_DAY )
410!  ENDIF
411END SUBROUTINE timeincmonth
412
413
414
415! Decrement Time by number of seconds in the previous month. 
416! Time is NOT normalized. 
417SUBROUTINE timedecmonth( time )
418  USE esmf_basemod
419  USE esmf_basetimemod
420  USE esmf_timemod
421  USE esmf_calendarmod
422  IMPLICIT NONE
423  TYPE(ESMF_Time), INTENT(INOUT) :: time
424  ! locals
425  INTEGER :: nfeb
426  INTEGER :: MM
427  CALL timegetmonth( time, MM )  ! current month, 1-12
428  ! find previous month
429  MM = MM - 1
430  IF ( MM == 0 ) THEN
431    ! wrap around Jan -> Dec
432    MM = MONTHS_PER_YEAR
433  ENDIF
434!  IF ( nfeb(time%YR) == 29 ) THEN
435!    time%basetime%S = time%basetime%S - &
436!      ( INT( mdayleap(MM), ESMF_KIND_I8 ) * SECONDS_PER_DAY )
437!  ELSE
438    time%basetime%S = time%basetime%S - &
439      ( INT( mday(MM), ESMF_KIND_I8 ) * SECONDS_PER_DAY )
440!  ENDIF
441END SUBROUTINE timedecmonth
442
443
444
445! spaceship operator for Times
446SUBROUTINE timecmp(time1, time2, retval )
447  USE esmf_basemod
448  USE esmf_basetimemod
449  USE esmf_timemod
450  IMPLICIT NONE
451  INTEGER, INTENT(OUT) :: retval
452!
453! !ARGUMENTS:
454  TYPE(ESMF_Time), INTENT(IN) :: time1
455  TYPE(ESMF_Time), INTENT(IN) :: time2
456  IF ( time1%YR .GT. time2%YR ) THEN ; retval = 1 ; RETURN ; ENDIF
457  IF ( time1%YR .LT. time2%YR ) THEN ; retval = -1 ; RETURN ; ENDIF
458  CALL seccmp( time1%basetime%S, time1%basetime%Sn, time1%basetime%Sd, &
459               time2%basetime%S, time2%basetime%Sn, time2%basetime%Sd, &
460               retval )
461END SUBROUTINE timecmp
462
463
464
465! spaceship operator for TimeIntervals
466SUBROUTINE timeintcmp(timeint1, timeint2, retval )
467  USE esmf_basemod
468  USE esmf_basetimemod
469  USE esmf_timeintervalmod
470  IMPLICIT NONE
471  INTEGER, INTENT(OUT) :: retval
472!
473! !ARGUMENTS:
474  TYPE(ESMF_TimeInterval), INTENT(IN) :: timeint1
475  TYPE(ESMF_TimeInterval), INTENT(IN) :: timeint2
476  CALL timeintchecknormalized( timeint1, 'timeintcmp arg1' )
477  CALL timeintchecknormalized( timeint2, 'timeintcmp arg2' )
478  CALL seccmp( timeint1%basetime%S, timeint1%basetime%Sn, &
479               timeint1%basetime%Sd,                      &
480               timeint2%basetime%S, timeint2%basetime%Sn, &
481               timeint2%basetime%Sd, retval )
482END SUBROUTINE timeintcmp
483
484
485
486! spaceship operator for seconds + Sn/Sd
487SUBROUTINE seccmp(S1, Sn1, Sd1, S2, Sn2, Sd2, retval )
488  USE esmf_basemod
489  IMPLICIT NONE
490  INTEGER, INTENT(OUT) :: retval
491!
492! !ARGUMENTS:
493  INTEGER(ESMF_KIND_I8), INTENT(IN) :: S1, Sn1, Sd1
494  INTEGER(ESMF_KIND_I8), INTENT(IN) :: S2, Sn2, Sd2
495! local
496  INTEGER(ESMF_KIND_I8) :: lcd, n1, n2
497
498  n1 = Sn1
499  n2 = Sn2
500  if ( ( n1 .ne. 0 ) .or. ( n2 .ne. 0 ) ) then
501    CALL compute_lcd( Sd1, Sd2, lcd )
502    if ( Sd1 .ne. 0 ) n1 = n1 * ( lcd / Sd1 )
503    if ( Sd2 .ne. 0 ) n2 = n2 * ( lcd / Sd2 )
504  endif
505
506  if ( S1 .GT. S2 ) retval = 1
507  if ( S1 .LT. S2 ) retval = -1
508  IF ( S1 .EQ. S2 ) THEN
509    IF (n1 .GT. n2) retval = 1
510    IF (n1 .LT. n2) retval = -1
511    IF (n1 .EQ. n2) retval = 0
512  ENDIF
513END SUBROUTINE seccmp
514
515
516SUBROUTINE c_esmc_basetimeeq (time1, time2, outflag)
517  USE esmf_alarmmod
518  USE esmf_basemod
519  USE esmf_basetimemod
520  USE esmf_calendarmod
521  USE esmf_clockmod
522  USE esmf_fractionmod
523  USE esmf_timeintervalmod
524  USE esmf_timemod
525IMPLICIT NONE
526      logical, intent(OUT) :: outflag
527      type(ESMF_Time), intent(in) :: time1
528      type(ESMF_Time), intent(in) :: time2
529      integer res
530      CALL timecmp(time1,time2,res)
531      outflag = (res .EQ. 0)
532END SUBROUTINE c_esmc_basetimeeq
533SUBROUTINE c_esmc_basetimege(time1, time2, outflag)
534  USE esmf_alarmmod
535  USE esmf_basemod
536  USE esmf_basetimemod
537  USE esmf_calendarmod
538  USE esmf_clockmod
539  USE esmf_fractionmod
540  USE esmf_timeintervalmod
541  USE esmf_timemod
542      logical, intent(OUT) :: outflag
543      type(ESMF_Time), intent(in) :: time1
544      type(ESMF_Time), intent(in) :: time2
545      integer res
546      CALL timecmp(time1,time2,res)
547      outflag = (res .EQ. 1 .OR. res .EQ. 0)
548END SUBROUTINE c_esmc_basetimege
549SUBROUTINE c_esmc_basetimegt(time1, time2, outflag)
550  USE esmf_alarmmod
551  USE esmf_basemod
552  USE esmf_basetimemod
553  USE esmf_calendarmod
554  USE esmf_clockmod
555  USE esmf_fractionmod
556  USE esmf_timeintervalmod
557  USE esmf_timemod
558IMPLICIT NONE
559      logical, intent(OUT) :: outflag
560      type(ESMF_Time), intent(in) :: time1
561      type(ESMF_Time), intent(in) :: time2
562      integer res
563      CALL timecmp(time1,time2,res)
564      outflag = (res .EQ. 1)
565END SUBROUTINE c_esmc_basetimegt
566SUBROUTINE c_esmc_basetimele(time1, time2, outflag)
567  USE esmf_alarmmod
568  USE esmf_basemod
569  USE esmf_basetimemod
570  USE esmf_calendarmod
571  USE esmf_clockmod
572  USE esmf_fractionmod
573  USE esmf_timeintervalmod
574  USE esmf_timemod
575IMPLICIT NONE
576      logical, intent(OUT) :: outflag
577      type(ESMF_Time), intent(in) :: time1
578      type(ESMF_Time), intent(in) :: time2
579      integer res
580      CALL timecmp(time1,time2,res)
581      outflag = (res .EQ. -1 .OR. res .EQ. 0)
582END SUBROUTINE c_esmc_basetimele
583SUBROUTINE c_esmc_basetimelt(time1, time2, outflag)
584  USE esmf_alarmmod
585  USE esmf_basemod
586  USE esmf_basetimemod
587  USE esmf_calendarmod
588  USE esmf_clockmod
589  USE esmf_fractionmod
590  USE esmf_timeintervalmod
591  USE esmf_timemod
592IMPLICIT NONE
593      logical, intent(OUT) :: outflag
594      type(ESMF_Time), intent(in) :: time1
595      type(ESMF_Time), intent(in) :: time2
596      integer res
597      CALL timecmp(time1,time2,res)
598      outflag = (res .EQ. -1)
599END SUBROUTINE c_esmc_basetimelt
600SUBROUTINE c_esmc_basetimene(time1, time2, outflag)
601  USE esmf_alarmmod
602  USE esmf_basemod
603  USE esmf_basetimemod
604  USE esmf_calendarmod
605  USE esmf_clockmod
606  USE esmf_fractionmod
607  USE esmf_timeintervalmod
608  USE esmf_timemod
609IMPLICIT NONE
610      logical, intent(OUT) :: outflag
611      type(ESMF_Time), intent(in) :: time1
612      type(ESMF_Time), intent(in) :: time2
613      integer res
614      CALL timecmp(time1,time2,res)
615      outflag = (res .NE. 0)
616END SUBROUTINE c_esmc_basetimene
617
618SUBROUTINE c_esmc_basetimeinteq(timeint1, timeint2, outflag)
619  USE esmf_timeintervalmod
620  IMPLICIT NONE
621  LOGICAL, INTENT(OUT) :: outflag
622  TYPE(ESMF_TimeInterval), INTENT(IN) :: timeint1
623  TYPE(ESMF_TimeInterval), INTENT(IN) :: timeint2
624  INTEGER :: res
625  CALL timeintcmp(timeint1,timeint2,res)
626  outflag = (res .EQ. 0)
627END SUBROUTINE c_esmc_basetimeinteq
628SUBROUTINE c_esmc_basetimeintne(timeint1, timeint2, outflag)
629  USE esmf_timeintervalmod
630  IMPLICIT NONE
631  LOGICAL, INTENT(OUT) :: outflag
632  TYPE(ESMF_TimeInterval), INTENT(IN) :: timeint1
633  TYPE(ESMF_TimeInterval), INTENT(IN) :: timeint2
634  INTEGER :: res
635  CALL timeintcmp(timeint1,timeint2,res)
636  outflag = (res .NE. 0)
637END SUBROUTINE c_esmc_basetimeintne
638SUBROUTINE c_esmc_basetimeintlt(timeint1, timeint2, outflag)
639  USE esmf_timeintervalmod
640  IMPLICIT NONE
641  LOGICAL, INTENT(OUT) :: outflag
642  TYPE(ESMF_TimeInterval), INTENT(IN) :: timeint1
643  TYPE(ESMF_TimeInterval), INTENT(IN) :: timeint2
644  INTEGER :: res
645  CALL timeintcmp(timeint1,timeint2,res)
646  outflag = (res .LT. 0)
647END SUBROUTINE c_esmc_basetimeintlt
648SUBROUTINE c_esmc_basetimeintgt(timeint1, timeint2, outflag)
649  USE esmf_timeintervalmod
650  IMPLICIT NONE
651  LOGICAL, INTENT(OUT) :: outflag
652  TYPE(ESMF_TimeInterval), INTENT(IN) :: timeint1
653  TYPE(ESMF_TimeInterval), INTENT(IN) :: timeint2
654  INTEGER :: res
655  CALL timeintcmp(timeint1,timeint2,res)
656  outflag = (res .GT. 0)
657END SUBROUTINE c_esmc_basetimeintgt
658SUBROUTINE c_esmc_basetimeintle(timeint1, timeint2, outflag)
659  USE esmf_timeintervalmod
660  IMPLICIT NONE
661  LOGICAL, INTENT(OUT) :: outflag
662  TYPE(ESMF_TimeInterval), INTENT(IN) :: timeint1
663  TYPE(ESMF_TimeInterval), INTENT(IN) :: timeint2
664  INTEGER :: res
665  CALL timeintcmp(timeint1,timeint2,res)
666  outflag = (res .LE. 0)
667END SUBROUTINE c_esmc_basetimeintle
668SUBROUTINE c_esmc_basetimeintge(timeint1, timeint2, outflag)
669  USE esmf_timeintervalmod
670  IMPLICIT NONE
671  LOGICAL, INTENT(OUT) :: outflag
672  TYPE(ESMF_TimeInterval), INTENT(IN) :: timeint1
673  TYPE(ESMF_TimeInterval), INTENT(IN) :: timeint2
674  INTEGER :: res
675  CALL timeintcmp(timeint1,timeint2,res)
676  outflag = (res .GE. 0)
677END SUBROUTINE c_esmc_basetimeintge
678
679SUBROUTINE compute_lcd( e1, e2, lcd )
680  USE esmf_basemod
681      IMPLICIT NONE
682      INTEGER(ESMF_KIND_I8), INTENT(IN) :: e1, e2
683      INTEGER(ESMF_KIND_I8), INTENT(OUT) :: lcd
684      INTEGER, PARAMETER ::  nprimes = 9
685      INTEGER(ESMF_KIND_I8), DIMENSION(nprimes), PARAMETER :: primes = (/2,3,5,7,11,13,17,19,23/)
686      INTEGER i
687      INTEGER(ESMF_KIND_I8) d1, d2, p
688
689      d1 = e1 ; d2 = e2
690      IF ( d1 .EQ. 0 .AND. d2 .EQ. 0 ) THEN ; lcd = 1 ; RETURN ; ENDIF
691      IF ( d1 .EQ. 0 ) d1 = d2
692      IF ( d2 .EQ. 0 ) d2 = d1
693      IF ( d1 .EQ. d2 ) THEN ; lcd = d1 ; RETURN ; ENDIF
694      lcd = d1 * d2
695      DO i = 1, nprimes
696        p = primes(i)
697        DO WHILE (lcd/p .NE. 0 .AND. &
698          mod(lcd/p,d1) .EQ. 0 .AND. mod(lcd/p,d2) .EQ. 0)
699          lcd = lcd / p
700        END DO
701      ENDDO
702END SUBROUTINE compute_lcd
703
704SUBROUTINE simplify( ni, di, no, do )
705  USE esmf_basemod
706    IMPLICIT NONE
707    INTEGER(ESMF_KIND_I8), INTENT(IN)  :: ni, di
708    INTEGER(ESMF_KIND_I8), INTENT(OUT) :: no, do
709    INTEGER, PARAMETER ::  nprimes = 9
710    INTEGER(ESMF_KIND_I8), DIMENSION(nprimes), PARAMETER :: primes = (/2,3,5,7,11,13,17,19,23/)
711    INTEGER(ESMF_KIND_I8) :: pr, d, n
712    INTEGER :: np
713    LOGICAL keepgoing
714    IF ( ni .EQ. 0 ) THEN
715      do = 1
716      no = 0
717      RETURN
718    ENDIF
719    IF ( mod( di , ni ) .EQ. 0 ) THEN
720      do = di / ni
721      no = 1
722      RETURN
723    ENDIF
724    d = di
725    n = ni
726    DO np = 1, nprimes
727      pr = primes(np)
728      keepgoing = .TRUE.
729      DO WHILE ( keepgoing )
730        keepgoing = .FALSE.
731        IF ( d/pr .NE. 0 .AND. n/pr .NE. 0 .AND. MOD(d,pr) .EQ. 0 .AND. MOD(n,pr) .EQ. 0 ) THEN
732          d = d / pr
733          n = n / pr
734          keepgoing = .TRUE.
735        ENDIF
736      ENDDO
737    ENDDO
738    do = d
739    no = n
740    RETURN
741END SUBROUTINE simplify
742
743
744!$$$ this should be named "c_esmc_timesum" or something less misleading
745SUBROUTINE c_esmc_basetimesum( time1, timeinterval, timeOut )
746  USE esmf_basemod
747  USE esmf_basetimemod
748  USE esmf_timeintervalmod
749  USE esmf_timemod
750  IMPLICIT NONE
751  TYPE(ESMF_Time), INTENT(IN) :: time1
752  TYPE(ESMF_TimeInterval), INTENT(IN) :: timeinterval
753  TYPE(ESMF_Time), INTENT(INOUT) :: timeOut
754  ! locals
755  INTEGER :: m
756  timeOut = time1
757  timeOut%basetime = timeOut%basetime + timeinterval%basetime
758  DO m = 1, abs(timeinterval%MM)
759    IF ( timeinterval%MM > 0 ) THEN
760      CALL timeincmonth( timeOut )
761    ELSE
762      CALL timedecmonth( timeOut )
763    ENDIF
764  ENDDO
765  timeOut%YR = timeOut%YR + timeinterval%YR
766  CALL normalize_time( timeOut )
767END SUBROUTINE c_esmc_basetimesum
768
769
770!$$$ this should be named "c_esmc_timedec" or something less misleading
771SUBROUTINE c_esmc_basetimedec( time1, timeinterval, timeOut )
772  USE esmf_basemod
773  USE esmf_basetimemod
774  USE esmf_timeintervalmod
775  USE esmf_timemod
776  IMPLICIT NONE
777  TYPE(ESMF_Time), INTENT(IN) :: time1
778  TYPE(ESMF_TimeInterval), INTENT(IN) :: timeinterval
779  TYPE(ESMF_Time), INTENT(OUT) :: timeOut
780  ! locals
781  TYPE (ESMF_TimeInterval)  :: neginterval
782  neginterval = timeinterval
783!$$$push this down into a unary negation operator on TimeInterval
784  neginterval%basetime%S = -neginterval%basetime%S
785  neginterval%basetime%Sn = -neginterval%basetime%Sn
786  neginterval%YR = -neginterval%YR
787  neginterval%MM = -neginterval%MM
788  timeOut = time1 + neginterval
789END SUBROUTINE c_esmc_basetimedec
790
791
792!$$$ this should be named "c_esmc_timediff" or something less misleading
793SUBROUTINE c_esmc_basetimediff( time1, time2, timeIntOut )
794  USE esmf_basemod
795  USE esmf_basetimemod
796  USE esmf_timeintervalmod
797  USE esmf_timemod
798  IMPLICIT NONE
799  TYPE(ESMF_Time), INTENT(IN) :: time1
800  TYPE(ESMF_Time), INTENT(IN) :: time2
801  TYPE(ESMF_TimeInterval), INTENT(OUT) :: timeIntOut
802  ! locals
803  INTEGER(ESMF_KIND_I8) :: nsecondsinyear
804  INTEGER :: yr
805  CALL ESMF_TimeIntervalSet( timeIntOut )
806  timeIntOut%basetime = time1%basetime - time2%basetime
807  ! convert difference in years to basetime... 
808  IF ( time1%YR > time2%YR ) THEN
809    DO yr = time2%YR, ( time1%YR - 1 )
810      timeIntOut%basetime%S = timeIntOut%basetime%S + nsecondsinyear( yr )
811    ENDDO
812  ELSE IF ( time2%YR > time1%YR ) THEN
813    DO yr = time1%YR, ( time2%YR - 1 )
814      timeIntOut%basetime%S = timeIntOut%basetime%S - nsecondsinyear( yr )
815    ENDDO
816  ENDIF
817!$$$ add tests for multi-year differences
818  CALL normalize_timeint( timeIntOut )
819END SUBROUTINE c_esmc_basetimediff
820
821
822! some extra wrf stuff
823
824
825! Convert fraction to string with leading sign.
826! If fraction simplifies to a whole number or if
827! denominator is zero, return empty string.
828! INTEGER*8 interface. 
829SUBROUTINE fraction_to_stringi8( numerator, denominator, frac_str )
830  USE ESMF_basemod
831  IMPLICIT NONE
832  INTEGER(ESMF_KIND_I8), INTENT(IN) :: numerator
833  INTEGER(ESMF_KIND_I8), INTENT(IN) :: denominator
834  CHARACTER (LEN=*), INTENT(OUT) :: frac_str
835  IF ( denominator > 0 ) THEN
836    IF ( mod( numerator, denominator ) /= 0 ) THEN
837      IF ( numerator > 0 ) THEN
838        WRITE(frac_str,FMT="('+',I2.2,'/',I2.2)") abs(numerator), denominator
839      ELSE   ! numerator < 0
840        WRITE(frac_str,FMT="('-',I2.2,'/',I2.2)") abs(numerator), denominator
841      ENDIF
842    ELSE   ! includes numerator == 0 case
843      frac_str = ''
844    ENDIF
845  ELSE   ! no-fraction case
846    frac_str = ''
847  ENDIF
848END SUBROUTINE fraction_to_stringi8
849
850
851! Convert fraction to string with leading sign.
852! If fraction simplifies to a whole number or if
853! denominator is zero, return empty string.
854! INTEGER interface. 
855SUBROUTINE fraction_to_string( numerator, denominator, frac_str )
856  USE ESMF_basemod
857  IMPLICIT NONE
858  INTEGER, INTENT(IN) :: numerator
859  INTEGER, INTENT(IN) :: denominator
860  CHARACTER (LEN=*), INTENT(OUT) :: frac_str
861  ! locals
862  INTEGER(ESMF_KIND_I8) :: numerator_i8, denominator_i8
863  numerator_i8 = INT( numerator, ESMF_KIND_I8 )
864  denominator_i8 = INT( denominator, ESMF_KIND_I8 )
865  CALL fraction_to_stringi8( numerator_i8, denominator_i8, frac_str )
866END SUBROUTINE fraction_to_string
867
868
869SUBROUTINE print_a_time( time )
870   use ESMF_basemod
871   use ESMF_Timemod
872   IMPLICIT NONE
873   type(ESMF_Time) time
874   character*128 :: s
875   integer rc
876   CALL ESMF_TimeGet( time, timeString=s, rc=rc )
877   print *,'Print a time|',TRIM(s),'|'
878   write(0,*)'Print a time|',TRIM(s),'|'
879   return
880END SUBROUTINE print_a_time
881
882SUBROUTINE print_a_timeinterval( time )
883   use ESMF_basemod
884   use ESMF_TimeIntervalmod
885   IMPLICIT NONE
886   type(ESMF_TimeInterval) time
887   character*128 :: s
888   integer rc
889   CALL ESMFold_TimeIntervalGetString( time, s, rc )
890   print *,'Print a time interval|',TRIM(s),'|'
891   write(0,*)'Print a time interval|',TRIM(s),'|'
892   return
893END SUBROUTINE print_a_timeinterval
894
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