/[lmdze]/trunk/Sources/IOIPSL/histwrite.f
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trunk/libf/IOIPSL/histwrite.f90 revision 30 by guez, Thu Apr 1 09:07:28 2010 UTC trunk/Sources/IOIPSL/histwrite.f revision 178 by guez, Fri Mar 11 18:47:26 2016 UTC
# Line 1  Line 1 
1  MODULE histwrite_m  MODULE histwrite_m
2    
3    ! From histcom.f90, v 2.1 2004/04/21 09:27:10    ! From histcom.f90, version 2.1 2004/04/21 09:27:10
4    
5    use histcom_var    USE errioipsl, ONLY: histerr
6      use histbeg_totreg_m, ONLY: nb_files, date0, deltat
7      USE histcom_var, ONLY: datasz_in, freq_opp, freq_wrt, fuchnbout, last_opp, &
8           last_opp_chk, last_wrt, last_wrt_chk, missing_val, nb_files_max, &
9           nb_var_max, nbopp, scal, scsize, sopps, topp
10      use histvar_seq_m, only: histvar_seq
11      use histwrite_real_m, only: histwrite_real
12      use isittime_m, only: isittime
13      USE mathop_m, ONLY: mathop
14    
15    implicit none    implicit none
16    
17    PRIVATE    INTEGER, SAVE:: datasz_max(nb_files_max, nb_var_max) = -1
   PUBLIC histwrite  
18    
19    INTERFACE histwrite    INTERFACE histwrite
20       !- The "histwrite" procedures give the data to the input-output system.       ! The "histwrite" procedures give the data to the input-output system.
21       !- They trigger the operations to be performed       ! They trigger the operations to be performed and the writing to
22       !- and the writing to the file if needed.       ! the file if needed.
23    
24       !- We test the work to be done at this time here so that at a       ! We test the work to be done at this time here so that at a
25       !- later stage we can call different operations and write subroutines       ! later stage we can call different operations and write subroutines
26       !- for the REAL and INTEGER interfaces.       ! for the REAL and INTEGER interfaces.
27    
28       ! INTEGER, INTENT(IN):: pfileid       ! INTEGER, INTENT(IN):: fileid
29       ! The ID of the file on which this variable is to be written.       ! The ID of the file on which this variable is to be written.
30       ! The variable should have been defined in this file before.       ! The variable should have been defined in this file before.
31    
32       ! CHARACTER(LEN=*), INTENT(IN):: pvarname       ! CHARACTER(LEN=*), INTENT(IN):: varname
33       ! short name of the variable       ! short name of the variable
34    
35       ! INTEGER, INTENT(IN):: pitau       ! INTEGER, INTENT(IN):: itau
36       ! current timestep       ! current timestep
37    
38       ! REAL, INTENT(IN):: pdata(:) or (:, :) or (:, :, :)       ! REAL, INTENT(IN):: pdata(:) or (:, :) or (:, :, :)
39       ! values of the variable       ! values of the variable
40    
      ! INTEGER, INTENT(IN):: nbindex  
      ! number of indices provided  
      ! If it is equal to the size of the full field as provided in histdef  
      ! then nothing is done.  
   
      ! INTEGER, INTENT(IN):: nindex(nbindex)  
      ! The indices used to expand the variable (pdata) onto the full field  
   
41       ! The difference between the procedures is the rank of "pdata".       ! The difference between the procedures is the rank of "pdata".
42    
43       MODULE PROCEDURE histwrite_r1d, histwrite_r2d, histwrite_r3d       MODULE PROCEDURE histwrite_r1d, histwrite_r2d, histwrite_r3d
44    END INTERFACE    END INTERFACE histwrite
45    
46      PRIVATE
47      public histwrite
48    
49  CONTAINS  CONTAINS
50    
51    SUBROUTINE histwrite_r1d(pfileid, pvarname, pitau, pdata)    SUBROUTINE histwrite_r1d(fileid, varname, itau, pdata)
52    
53      USE errioipsl, ONLY : histerr      INTEGER, INTENT(IN):: fileid, itau
54      use calendar, only: isittime      CHARACTER(LEN=*), INTENT(IN):: varname
55      USE mathelp, ONLY : mathop      REAL, INTENT(IN):: pdata(:)
   
     INTEGER, INTENT(IN) :: pfileid, pitau  
     REAL, INTENT(IN) :: pdata(:)  
     CHARACTER(LEN=*), INTENT(IN) :: pvarname  
56    
57      ! Variables local to the procedure:      ! Variables local to the procedure:
58      integer nbindex, nindex(size(pdata))      integer nbindex, nindex(size(pdata))
59      LOGICAL :: do_oper, do_write, largebuf      LOGICAL:: do_oper, do_write, largebuf
60      INTEGER :: varid, io, nbpt_in, nbpt_out      INTEGER:: varid, io, nbpt_in, nbpt_out
61      REAL, ALLOCATABLE, SAVE :: buff_tmp(:)      REAL, ALLOCATABLE, SAVE:: buff_tmp(:)
62      INTEGER, SAVE :: buff_tmp_sz      INTEGER, SAVE:: buff_tmp_sz
63      CHARACTER(LEN=7) :: tmp_opp      CHARACTER(LEN=7):: tmp_opp
64    
65      !---------------------------------------------------------------------      !--------------------------------------------------------------------
66    
67      nbindex = size(nindex)      nbindex = size(nindex)
68      nindex = 0      nindex = 0
69    
70      ! 1.0 Try to catch errors like specifying the wrong file ID.      ! 1.0 Try to catch errors like specifying the wrong file ID.
     !     Thanks Marine for showing us what errors users can make !  
71    
72      IF ( (pfileid < 1).OR.(pfileid > nb_files) ) THEN      IF ((fileid < 1) .OR. (fileid > nb_files)) THEN
73         CALL histerr (3, "histwrite", &         CALL histerr(3, "histwrite", &
74              &    'Illegal file ID in the histwrite of variable', pvarname, ' ')              'Illegal file ID in the histwrite of variable', varname, ' ')
75      ENDIF      ENDIF
76    
77      ! 1.1 Find the id of the variable to be written and the real time      ! 1.1 Find the id of the variable to be written and the real time
78    
79      CALL histvar_seq (pfileid, pvarname, varid)      CALL histvar_seq(fileid, varname, varid)
80    
81      ! 2.0 do nothing for never operation      ! 2.0 do nothing for never operation
82    
83      tmp_opp = topp(pfileid, varid)      tmp_opp = topp(fileid, varid)
84    
85      IF (TRIM(tmp_opp) == "never") THEN      IF (TRIM(tmp_opp) == "never") THEN
86         last_opp_chk(pfileid, varid) = -99         last_opp_chk(fileid, varid) = -99
87         last_wrt_chk(pfileid, varid) = -99         last_wrt_chk(fileid, varid) = -99
88      ENDIF      ENDIF
89    
90      ! 3.0 We check if we need to do an operation      ! 3.0 We check if we need to do an operation
91    
92      IF (last_opp_chk(pfileid, varid) == pitau) THEN      IF (last_opp_chk(fileid, varid) == itau) THEN
93         CALL histerr (3, "histwrite", &         CALL histerr(3, "histwrite", &
94              &    'This variable as already been analysed at the present', &              'This variable as already been analysed at the present', &
95              &    'time step', ' ')              'time step', ' ')
96      ENDIF      ENDIF
97    
98      CALL isittime &      CALL isittime(itau, date0(fileid), deltat(fileid), &
99           &  (pitau, date0(pfileid), deltat(pfileid), freq_opp(pfileid, varid), &           freq_opp(fileid, varid), last_opp(fileid, varid), &
100           &   last_opp(pfileid, varid), last_opp_chk(pfileid, varid), do_oper)           last_opp_chk(fileid, varid), do_oper)
101    
102      ! 4.0 We check if we need to write the data      ! 4.0 We check if we need to write the data
103    
104      IF (last_wrt_chk(pfileid, varid) == pitau) THEN      IF (last_wrt_chk(fileid, varid) == itau) THEN
105         CALL histerr (3, "histwrite", &         CALL histerr(3, "histwrite", &
106              &    'This variable as already been written for the present', &              'This variable as already been written for the present', &
107              &    'time step', ' ')              'time step', ' ')
108      ENDIF      ENDIF
109    
110      CALL isittime &      CALL isittime(itau, date0(fileid), deltat(fileid), &
111           &  (pitau, date0(pfileid), deltat(pfileid), freq_wrt(pfileid, varid), &           freq_wrt(fileid, varid), last_wrt(fileid, varid), &
112           &   last_wrt(pfileid, varid), last_wrt_chk(pfileid, varid), do_write)           last_wrt_chk(fileid, varid), do_write)
113    
114      ! 5.0 histwrite called      ! 5.0 histwrite called
115    
116      IF (do_oper.OR.do_write) THEN      IF (do_oper .OR. do_write) THEN
117           ! 5.1 Get the sizes of the data we will handle
        !-- 5.1 Get the sizes of the data we will handle  
118    
119         IF (datasz_in(pfileid, varid, 1) <= 0) THEN         IF (datasz_in(fileid, varid, 1) <= 0) THEN
120            !---- There is the risk here that the user has over-sized the array.            ! There is the risk here that the user has over-sized the array.
121            !---- But how can we catch this ?            ! But how can we catch this ?
122            !---- In the worst case we will do impossible operations            ! In the worst case we will do impossible operations
123            !---- on part of the data !            ! on part of the data !
124            datasz_in(pfileid, varid, 1) = SIZE(pdata)            datasz_in(fileid, varid, 1) = SIZE(pdata)
125            datasz_in(pfileid, varid, 2) = -1            datasz_in(fileid, varid, 2) = -1
126            datasz_in(pfileid, varid, 3) = -1            datasz_in(fileid, varid, 3) = -1
127         ENDIF         ENDIF
128    
129         !-- 5.2 The maximum size of the data will give the size of the buffer         ! 5.2 The maximum size of the data will give the size of the buffer
130    
131         IF (datasz_max(pfileid, varid) <= 0) THEN         IF (datasz_max(fileid, varid) <= 0) THEN
132            largebuf = .FALSE.            largebuf = .FALSE.
133            DO io=1, nbopp(pfileid, varid)            DO io=1, nbopp(fileid, varid)
134               IF (INDEX(fuchnbout, sopps(pfileid, varid, io)) > 0) THEN               IF (INDEX(fuchnbout, sopps(fileid, varid, io)) > 0) THEN
135                  largebuf = .TRUE.                  largebuf = .TRUE.
136               ENDIF               ENDIF
137            ENDDO            ENDDO
138            IF (largebuf) THEN            IF (largebuf) THEN
139               datasz_max(pfileid, varid) = &               datasz_max(fileid, varid) = scsize(fileid, varid, 1) &
140                    &        scsize(pfileid, varid, 1) &                    * scsize(fileid, varid, 2) *scsize(fileid, varid, 3)
                   &       *scsize(pfileid, varid, 2) &  
                   &       *scsize(pfileid, varid, 3)  
141            ELSE            ELSE
142               datasz_max(pfileid, varid) = &               datasz_max(fileid, varid) = datasz_in(fileid, varid, 1)
                   &        datasz_in(pfileid, varid, 1)  
143            ENDIF            ENDIF
144         ENDIF         ENDIF
145    
146         IF (.NOT.ALLOCATED(buff_tmp)) THEN         IF (.NOT.ALLOCATED(buff_tmp)) THEN
147            ALLOCATE (buff_tmp(datasz_max(pfileid, varid)))            ALLOCATE(buff_tmp(datasz_max(fileid, varid)))
148            buff_tmp_sz = datasz_max(pfileid, varid)            buff_tmp_sz = datasz_max(fileid, varid)
149         ELSE IF (datasz_max(pfileid, varid) > buff_tmp_sz) THEN         ELSE IF (datasz_max(fileid, varid) > buff_tmp_sz) THEN
150            DEALLOCATE (buff_tmp)            DEALLOCATE(buff_tmp)
151            ALLOCATE (buff_tmp(datasz_max(pfileid, varid)))            ALLOCATE(buff_tmp(datasz_max(fileid, varid)))
152            buff_tmp_sz = datasz_max(pfileid, varid)            buff_tmp_sz = datasz_max(fileid, varid)
153         ENDIF         ENDIF
154    
155         !-- We have to do the first operation anyway.         ! We have to do the first operation anyway. Thus we do it here
156         !-- Thus we do it here and change the ranke         ! and change the ranke of the data at the same time. This
157         !-- of the data at the same time. This should speed up things.         ! should speed up things.
158    
159         nbpt_in = datasz_in(pfileid, varid, 1)         nbpt_in = datasz_in(fileid, varid, 1)
160         nbpt_out = datasz_max(pfileid, varid)         nbpt_out = datasz_max(fileid, varid)
161         CALL mathop (sopps(pfileid, varid, 1), nbpt_in, pdata, &         CALL mathop(sopps(fileid, varid, 1), nbpt_in, pdata, missing_val, &
162              &               missing_val, nbindex, nindex, &              nbindex, nindex, scal(fileid, varid, 1), nbpt_out, buff_tmp)
163              &               scal(pfileid, varid, 1), nbpt_out, buff_tmp)         CALL histwrite_real(datasz_max, fileid, varid, itau, nbpt_out, &
164         CALL histwrite_real (pfileid, varid, pitau, nbpt_out, &              buff_tmp, nbindex, nindex, do_oper, do_write)
             &            buff_tmp, nbindex, nindex, do_oper, do_write)  
165      ENDIF      ENDIF
166    
167      ! 6.0 Manage time steps      ! 6.0 Manage time steps
168    
169      IF ((TRIM(tmp_opp) /= "once").AND.(TRIM(tmp_opp) /= "never")) THEN      IF ((TRIM(tmp_opp) /= "once") .AND. (TRIM(tmp_opp) /= "never")) THEN
170         last_opp_chk(pfileid, varid) = pitau         last_opp_chk(fileid, varid) = itau
171         last_wrt_chk(pfileid, varid) = pitau         last_wrt_chk(fileid, varid) = itau
172      ELSE      ELSE
173         last_opp_chk(pfileid, varid) = -99         last_opp_chk(fileid, varid) = -99
174         last_wrt_chk(pfileid, varid) = -99         last_wrt_chk(fileid, varid) = -99
175      ENDIF      ENDIF
176      !---------------------------  
177    END SUBROUTINE histwrite_r1d    END SUBROUTINE histwrite_r1d
178    
179    !===    !************************************************************************
180    
181    SUBROUTINE histwrite_r2d (pfileid, pvarname, pitau, pdata)    SUBROUTINE histwrite_r2d (fileid, varname, itau, pdata)
     !---------------------------------------------------------------------  
182    
183      use calendar, only: isittime      INTEGER, INTENT(IN):: fileid, itau
184      USE errioipsl, ONLY : histerr      REAL, INTENT(IN):: pdata(:, :)
185      USE mathelp, ONLY : mathop      CHARACTER(LEN=*), INTENT(IN):: varname
   
     INTEGER, INTENT(IN) :: pfileid, pitau  
     REAL, DIMENSION(:, :), INTENT(IN) :: pdata  
     CHARACTER(LEN=*), INTENT(IN) :: pvarname  
186    
187      integer nbindex, nindex(size(pdata))      integer nbindex, nindex(size(pdata))
188      LOGICAL :: do_oper, do_write, largebuf      LOGICAL:: do_oper, do_write, largebuf
189      INTEGER :: varid, io, nbpt_in(1:2), nbpt_out      INTEGER:: varid, io, nbpt_in(1:2), nbpt_out
190      REAL, ALLOCATABLE, SAVE :: buff_tmp(:)      REAL, ALLOCATABLE, SAVE:: buff_tmp(:)
191      INTEGER, SAVE :: buff_tmp_sz      INTEGER, SAVE:: buff_tmp_sz
192      CHARACTER(LEN=7) :: tmp_opp      CHARACTER(LEN=7):: tmp_opp
193    
194      !---------------------------------------------------------------------      !--------------------------------------------------------------------
195    
196      nbindex = size(nindex)      nbindex = size(nindex)
197      nindex = 0      nindex = 0
198    
199      ! 1.0 Try to catch errors like specifying the wrong file ID.      ! 1.0 Try to catch errors like specifying the wrong file ID.
     !     Thanks Marine for showing us what errors users can make !  
200    
201      IF ( (pfileid < 1).OR.(pfileid > nb_files) ) THEN      IF ( (fileid < 1).OR.(fileid > nb_files) ) THEN
202         CALL histerr (3, "histwrite", &         CALL histerr (3, "histwrite", &
203              &    'Illegal file ID in the histwrite of variable', pvarname, ' ')              'Illegal file ID in the histwrite of variable', varname, ' ')
204      ENDIF      ENDIF
205    
206      ! 1.1 Find the id of the variable to be written and the real time      ! 1.1 Find the id of the variable to be written and the real time
207    
208      CALL histvar_seq (pfileid, pvarname, varid)      CALL histvar_seq (fileid, varname, varid)
209    
210      ! 2.0 do nothing for never operation      ! 2.0 do nothing for never operation
211    
212      tmp_opp = topp(pfileid, varid)      tmp_opp = topp(fileid, varid)
213    
214      IF (TRIM(tmp_opp) == "never") THEN      IF (TRIM(tmp_opp) == "never") THEN
215         last_opp_chk(pfileid, varid) = -99         last_opp_chk(fileid, varid) = -99
216         last_wrt_chk(pfileid, varid) = -99         last_wrt_chk(fileid, varid) = -99
217      ENDIF      ENDIF
218    
219      ! 3.0 We check if we need to do an operation      ! 3.0 We check if we need to do an operation
220    
221      IF (last_opp_chk(pfileid, varid) == pitau) THEN      IF (last_opp_chk(fileid, varid) == itau) CALL histerr (3, "histwrite", &
222         CALL histerr (3, "histwrite", &           'This variable as already been analysed at the present', &
223              &    'This variable as already been analysed at the present', &           'time step', ' ')
224              &    'time step', ' ')  
225      ENDIF      CALL isittime(itau, date0(fileid), deltat(fileid), &
226             freq_opp(fileid, varid), last_opp(fileid, varid), &
227      CALL isittime &           last_opp_chk(fileid, varid), do_oper)
          &  (pitau, date0(pfileid), deltat(pfileid), freq_opp(pfileid, varid), &  
          &   last_opp(pfileid, varid), last_opp_chk(pfileid, varid), do_oper)  
228    
229      ! 4.0 We check if we need to write the data      ! 4.0 We check if we need to write the data
230    
231      IF (last_wrt_chk(pfileid, varid) == pitau) THEN      IF (last_wrt_chk(fileid, varid) == itau) THEN
232         CALL histerr (3, "histwrite", &         CALL histerr (3, "histwrite", &
233              &    'This variable as already been written for the present', &              'This variable as already been written for the present', &
234              &    'time step', ' ')              'time step', ' ')
235      ENDIF      ENDIF
236    
237      CALL isittime &      CALL isittime &
238           &  (pitau, date0(pfileid), deltat(pfileid), freq_wrt(pfileid, varid), &           (itau, date0(fileid), deltat(fileid), freq_wrt(fileid, varid), &
239           &   last_wrt(pfileid, varid), last_wrt_chk(pfileid, varid), do_write)           last_wrt(fileid, varid), last_wrt_chk(fileid, varid), do_write)
240    
241      ! 5.0 histwrite called      ! 5.0 histwrite called
242    
243      IF (do_oper.OR.do_write) THEN      IF (do_oper.OR.do_write) THEN
244    
245         !-- 5.1 Get the sizes of the data we will handle         !- 5.1 Get the sizes of the data we will handle
246    
247         IF (datasz_in(pfileid, varid, 1) <= 0) THEN         IF (datasz_in(fileid, varid, 1) <= 0) THEN
248            !---- There is the risk here that the user has over-sized the array.            !--- There is the risk here that the user has over-sized the array.
249            !---- But how can we catch this ?            !--- But how can we catch this ?
250            !---- In the worst case we will do impossible operations            !--- In the worst case we will do impossible operations
251            !---- on part of the data !            !--- on part of the data !
252            datasz_in(pfileid, varid, 1) = SIZE(pdata, DIM=1)            datasz_in(fileid, varid, 1) = SIZE(pdata, DIM=1)
253            datasz_in(pfileid, varid, 2) = SIZE(pdata, DIM=2)            datasz_in(fileid, varid, 2) = SIZE(pdata, DIM=2)
254            datasz_in(pfileid, varid, 3) = -1            datasz_in(fileid, varid, 3) = -1
255         ENDIF         ENDIF
256    
257         !-- 5.2 The maximum size of the data will give the size of the buffer         !- 5.2 The maximum size of the data will give the size of the buffer
258    
259         IF (datasz_max(pfileid, varid) <= 0) THEN         IF (datasz_max(fileid, varid) <= 0) THEN
260            largebuf = .FALSE.            largebuf = .FALSE.
261            DO io=1, nbopp(pfileid, varid)            DO io=1, nbopp(fileid, varid)
262               IF (INDEX(fuchnbout, sopps(pfileid, varid, io)) > 0) THEN               IF (INDEX(fuchnbout, sopps(fileid, varid, io)) > 0) THEN
263                  largebuf = .TRUE.                  largebuf = .TRUE.
264               ENDIF               ENDIF
265            ENDDO            ENDDO
266            IF (largebuf) THEN            IF (largebuf) THEN
267               datasz_max(pfileid, varid) = &               datasz_max(fileid, varid) = &
268                    &        scsize(pfileid, varid, 1) &                    scsize(fileid, varid, 1) &
269                    &       *scsize(pfileid, varid, 2) &                    *scsize(fileid, varid, 2) &
270                    &       *scsize(pfileid, varid, 3)                    *scsize(fileid, varid, 3)
271            ELSE            ELSE
272               datasz_max(pfileid, varid) = &               datasz_max(fileid, varid) = &
273                    &        datasz_in(pfileid, varid, 1) &                    datasz_in(fileid, varid, 1) &
274                    &       *datasz_in(pfileid, varid, 2)                    *datasz_in(fileid, varid, 2)
275            ENDIF            ENDIF
276         ENDIF         ENDIF
277    
278         IF (.NOT.ALLOCATED(buff_tmp)) THEN         IF (.NOT.ALLOCATED(buff_tmp)) THEN
279            ALLOCATE (buff_tmp(datasz_max(pfileid, varid)))            ALLOCATE (buff_tmp(datasz_max(fileid, varid)))
280            buff_tmp_sz = datasz_max(pfileid, varid)            buff_tmp_sz = datasz_max(fileid, varid)
281         ELSE IF (datasz_max(pfileid, varid) > buff_tmp_sz) THEN         ELSE IF (datasz_max(fileid, varid) > buff_tmp_sz) THEN
282            DEALLOCATE (buff_tmp)            DEALLOCATE (buff_tmp)
283            ALLOCATE (buff_tmp(datasz_max(pfileid, varid)))            ALLOCATE (buff_tmp(datasz_max(fileid, varid)))
284            buff_tmp_sz = datasz_max(pfileid, varid)            buff_tmp_sz = datasz_max(fileid, varid)
285         ENDIF         ENDIF
286    
287         !-- We have to do the first operation anyway.         !- We have to do the first operation anyway.
288         !-- Thus we do it here and change the ranke         !- Thus we do it here and change the ranke
289         !-- of the data at the same time. This should speed up things.         !- of the data at the same time. This should speed up things.
290    
291         nbpt_in(1:2) = datasz_in(pfileid, varid, 1:2)         nbpt_in(1:2) = datasz_in(fileid, varid, 1:2)
292         nbpt_out = datasz_max(pfileid, varid)         nbpt_out = datasz_max(fileid, varid)
293         CALL mathop (sopps(pfileid, varid, 1), nbpt_in, pdata, &         CALL mathop (sopps(fileid, varid, 1), nbpt_in, pdata, &
294              &               missing_val, nbindex, nindex, &              missing_val, nbindex, nindex, &
295              &               scal(pfileid, varid, 1), nbpt_out, buff_tmp)              scal(fileid, varid, 1), nbpt_out, buff_tmp)
296         CALL histwrite_real (pfileid, varid, pitau, nbpt_out, &         CALL histwrite_real (datasz_max, fileid, varid, itau, nbpt_out, &
297              &            buff_tmp, nbindex, nindex, do_oper, do_write)              buff_tmp, nbindex, nindex, do_oper, do_write)
298      ENDIF      ENDIF
299    
300      ! 6.0 Manage time steps      ! 6.0 Manage time steps
301    
302      IF ((TRIM(tmp_opp) /= "once").AND.(TRIM(tmp_opp) /= "never")) THEN      IF ((TRIM(tmp_opp) /= "once").AND.(TRIM(tmp_opp) /= "never")) THEN
303         last_opp_chk(pfileid, varid) = pitau         last_opp_chk(fileid, varid) = itau
304         last_wrt_chk(pfileid, varid) = pitau         last_wrt_chk(fileid, varid) = itau
305      ELSE      ELSE
306         last_opp_chk(pfileid, varid) = -99         last_opp_chk(fileid, varid) = -99
307         last_wrt_chk(pfileid, varid) = -99         last_wrt_chk(fileid, varid) = -99
308      ENDIF      ENDIF
309      !---------------------------  
310    END SUBROUTINE histwrite_r2d    END SUBROUTINE histwrite_r2d
311    
312    !===    !************************************************************************
313    
314    SUBROUTINE histwrite_r3d (pfileid, pvarname, pitau, pdata)    SUBROUTINE histwrite_r3d (fileid, varname, itau, pdata)
     !---------------------------------------------------------------------  
315    
316      use calendar, only: isittime      INTEGER, INTENT(IN):: fileid, itau
317      USE errioipsl, ONLY : histerr      REAL, DIMENSION(:, :, :), INTENT(IN):: pdata
318      USE mathelp, ONLY : mathop      CHARACTER(LEN=*), INTENT(IN):: varname
   
     INTEGER, INTENT(IN) :: pfileid, pitau  
     REAL, DIMENSION(:, :, :), INTENT(IN) :: pdata  
     CHARACTER(LEN=*), INTENT(IN) :: pvarname  
319    
320      integer nbindex, nindex(size(pdata))      integer nbindex, nindex(size(pdata))
321      LOGICAL :: do_oper, do_write, largebuf      LOGICAL:: do_oper, do_write, largebuf
322      INTEGER :: varid, io, nbpt_in(1:3), nbpt_out      INTEGER:: varid, io, nbpt_in(1:3), nbpt_out
323      REAL, ALLOCATABLE, SAVE :: buff_tmp(:)      REAL, ALLOCATABLE, SAVE:: buff_tmp(:)
324      INTEGER, SAVE :: buff_tmp_sz      INTEGER, SAVE:: buff_tmp_sz
325      CHARACTER(LEN=7) :: tmp_opp      CHARACTER(LEN=7):: tmp_opp
326    
327      !---------------------------------------------------------------------      !--------------------------------------------------------------------
328    
329      nbindex = size(nindex)      nbindex = size(nindex)
330      nindex = 0      nindex = 0
# Line 353  CONTAINS Line 332  CONTAINS
332      ! 1.0 Try to catch errors like specifying the wrong file ID.      ! 1.0 Try to catch errors like specifying the wrong file ID.
333      !     Thanks Marine for showing us what errors users can make !      !     Thanks Marine for showing us what errors users can make !
334    
335      IF ( (pfileid < 1).OR.(pfileid > nb_files) ) THEN      IF ( (fileid < 1).OR.(fileid > nb_files) ) THEN
336         CALL histerr (3, "histwrite", &         CALL histerr (3, "histwrite", &
337              &    'Illegal file ID in the histwrite of variable', pvarname, ' ')              'Illegal file ID in the histwrite of variable', varname, ' ')
338      ENDIF      ENDIF
339    
340      ! 1.1 Find the id of the variable to be written and the real time      ! 1.1 Find the id of the variable to be written and the real time
341    
342      CALL histvar_seq (pfileid, pvarname, varid)      CALL histvar_seq (fileid, varname, varid)
343    
344      ! 2.0 do nothing for never operation      ! 2.0 do nothing for never operation
345    
346      tmp_opp = topp(pfileid, varid)      tmp_opp = topp(fileid, varid)
347    
348      IF (TRIM(tmp_opp) == "never") THEN      IF (TRIM(tmp_opp) == "never") THEN
349         last_opp_chk(pfileid, varid) = -99         last_opp_chk(fileid, varid) = -99
350         last_wrt_chk(pfileid, varid) = -99         last_wrt_chk(fileid, varid) = -99
351      ENDIF      ENDIF
352    
353      ! 3.0 We check if we need to do an operation      ! 3.0 We check if we need to do an operation
354    
355      IF (last_opp_chk(pfileid, varid) == pitau) THEN      IF (last_opp_chk(fileid, varid) == itau) THEN
356         CALL histerr (3, "histwrite", &         CALL histerr (3, "histwrite", &
357              &    'This variable as already been analysed at the present', &              'This variable as already been analysed at the present', &
358              &    'time step', ' ')              'time step', ' ')
359      ENDIF      ENDIF
360    
361      CALL isittime &      CALL isittime &
362           &  (pitau, date0(pfileid), deltat(pfileid), freq_opp(pfileid, varid), &           (itau, date0(fileid), deltat(fileid), freq_opp(fileid, varid), &
363           &   last_opp(pfileid, varid), last_opp_chk(pfileid, varid), do_oper)           last_opp(fileid, varid), last_opp_chk(fileid, varid), do_oper)
364    
365      ! 4.0 We check if we need to write the data      ! 4.0 We check if we need to write the data
366    
367      IF (last_wrt_chk(pfileid, varid) == pitau) THEN      IF (last_wrt_chk(fileid, varid) == itau) THEN
368         CALL histerr (3, "histwrite", &         CALL histerr (3, "histwrite", &
369              &    'This variable as already been written for the present', &              'This variable as already been written for the present', &
370              &    'time step', ' ')              'time step', ' ')
371      ENDIF      ENDIF
372    
373      CALL isittime &      CALL isittime &
374           &  (pitau, date0(pfileid), deltat(pfileid), freq_wrt(pfileid, varid), &           (itau, date0(fileid), deltat(fileid), freq_wrt(fileid, varid), &
375           &   last_wrt(pfileid, varid), last_wrt_chk(pfileid, varid), do_write)           last_wrt(fileid, varid), last_wrt_chk(fileid, varid), do_write)
376    
377      ! 5.0 histwrite called      ! 5.0 histwrite called
378    
379      IF (do_oper.OR.do_write) THEN      IF (do_oper.OR.do_write) THEN
380    
381         !-- 5.1 Get the sizes of the data we will handle         !- 5.1 Get the sizes of the data we will handle
382    
383         IF (datasz_in(pfileid, varid, 1) <= 0) THEN         IF (datasz_in(fileid, varid, 1) <= 0) THEN
384            !---- There is the risk here that the user has over-sized the array.            !--- There is the risk here that the user has over-sized the array.
385            !---- But how can we catch this ?            !--- But how can we catch this ?
386            !---- In the worst case we will do impossible operations            !--- In the worst case we will do impossible operations
387            !---- on part of the data !            !--- on part of the data !
388            datasz_in(pfileid, varid, 1) = SIZE(pdata, DIM=1)            datasz_in(fileid, varid, 1) = SIZE(pdata, DIM=1)
389            datasz_in(pfileid, varid, 2) = SIZE(pdata, DIM=2)            datasz_in(fileid, varid, 2) = SIZE(pdata, DIM=2)
390            datasz_in(pfileid, varid, 3) = SIZE(pdata, DIM=3)            datasz_in(fileid, varid, 3) = SIZE(pdata, DIM=3)
391         ENDIF         ENDIF
392    
393         !-- 5.2 The maximum size of the data will give the size of the buffer         !- 5.2 The maximum size of the data will give the size of the buffer
394    
395         IF (datasz_max(pfileid, varid) <= 0) THEN         IF (datasz_max(fileid, varid) <= 0) THEN
396            largebuf = .FALSE.            largebuf = .FALSE.
397            DO io =1, nbopp(pfileid, varid)            DO io =1, nbopp(fileid, varid)
398               IF (INDEX(fuchnbout, sopps(pfileid, varid, io)) > 0) THEN               IF (INDEX(fuchnbout, sopps(fileid, varid, io)) > 0) THEN
399                  largebuf = .TRUE.                  largebuf = .TRUE.
400               ENDIF               ENDIF
401            ENDDO            ENDDO
402            IF (largebuf) THEN            IF (largebuf) THEN
403               datasz_max(pfileid, varid) = &               datasz_max(fileid, varid) = &
404                    &        scsize(pfileid, varid, 1) &                    scsize(fileid, varid, 1) &
405                    &       *scsize(pfileid, varid, 2) &                    *scsize(fileid, varid, 2) &
406                    &       *scsize(pfileid, varid, 3)                    *scsize(fileid, varid, 3)
407            ELSE            ELSE
408               datasz_max(pfileid, varid) = &               datasz_max(fileid, varid) = &
409                    &        datasz_in(pfileid, varid, 1) &                    datasz_in(fileid, varid, 1) &
410                    &       *datasz_in(pfileid, varid, 2) &                    *datasz_in(fileid, varid, 2) &
411                    &       *datasz_in(pfileid, varid, 3)                    *datasz_in(fileid, varid, 3)
412            ENDIF            ENDIF
413         ENDIF         ENDIF
414    
415         IF (.NOT.ALLOCATED(buff_tmp)) THEN         IF (.NOT.ALLOCATED(buff_tmp)) THEN
416            ALLOCATE (buff_tmp(datasz_max(pfileid, varid)))            ALLOCATE (buff_tmp(datasz_max(fileid, varid)))
417            buff_tmp_sz = datasz_max(pfileid, varid)            buff_tmp_sz = datasz_max(fileid, varid)
418         ELSE IF (datasz_max(pfileid, varid) > buff_tmp_sz) THEN         ELSE IF (datasz_max(fileid, varid) > buff_tmp_sz) THEN
419            DEALLOCATE (buff_tmp)            DEALLOCATE (buff_tmp)
420            ALLOCATE (buff_tmp(datasz_max(pfileid, varid)))            ALLOCATE (buff_tmp(datasz_max(fileid, varid)))
421            buff_tmp_sz = datasz_max(pfileid, varid)            buff_tmp_sz = datasz_max(fileid, varid)
422         ENDIF         ENDIF
423    
424         !-- We have to do the first operation anyway.         !- We have to do the first operation anyway.
425         !-- Thus we do it here and change the ranke         !- Thus we do it here and change the ranke
426         !-- of the data at the same time. This should speed up things.         !- of the data at the same time. This should speed up things.
427    
428         nbpt_in(1:3) = datasz_in(pfileid, varid, 1:3)         nbpt_in(1:3) = datasz_in(fileid, varid, 1:3)
429         nbpt_out = datasz_max(pfileid, varid)         nbpt_out = datasz_max(fileid, varid)
430         CALL mathop (sopps(pfileid, varid, 1), nbpt_in, pdata, &         CALL mathop (sopps(fileid, varid, 1), nbpt_in, pdata, &
431              &               missing_val, nbindex, nindex, &              missing_val, nbindex, nindex, &
432              &               scal(pfileid, varid, 1), nbpt_out, buff_tmp)              scal(fileid, varid, 1), nbpt_out, buff_tmp)
433         CALL histwrite_real (pfileid, varid, pitau, nbpt_out, &         CALL histwrite_real(datasz_max, fileid, varid, itau, nbpt_out, &
434              &            buff_tmp, nbindex, nindex, do_oper, do_write)              buff_tmp, nbindex, nindex, do_oper, do_write)
435      ENDIF      ENDIF
436    
437      ! 6.0 Manage time steps      ! 6.0 Manage time steps
438    
439      IF ((TRIM(tmp_opp) /= "once").AND.(TRIM(tmp_opp) /= "never")) THEN      IF ((TRIM(tmp_opp) /= "once").AND.(TRIM(tmp_opp) /= "never")) THEN
440         last_opp_chk(pfileid, varid) = pitau         last_opp_chk(fileid, varid) = itau
441         last_wrt_chk(pfileid, varid) = pitau         last_wrt_chk(fileid, varid) = itau
442      ELSE      ELSE
443         last_opp_chk(pfileid, varid) = -99         last_opp_chk(fileid, varid) = -99
444         last_wrt_chk(pfileid, varid) = -99         last_wrt_chk(fileid, varid) = -99
     ENDIF  
     !---------------------------  
   END SUBROUTINE histwrite_r3d  
   
   !===  
   
   SUBROUTINE histwrite_real(pfileid, varid, pitau, nbdpt, buff_tmp, nbindex, &  
        nindex, do_oper, do_write)  
   
     !- This subroutine is internal and does the calculations and writing  
     !- if needed. At a later stage it should be split into an operation  
     !- and writing subroutines.  
     !---------------------------------------------------------------------  
   
     USE mathelp, ONLY : mathop, trans_buff, moycum  
     use netcdf, only: NF90_PUT_VAR  
   
     INTEGER, INTENT(IN) :: pfileid, pitau, varid, &  
          &                      nbindex, nindex(nbindex), nbdpt  
     REAL, DIMENSION(:)  :: buff_tmp  
     LOGICAL, INTENT(IN) :: do_oper, do_write  
   
     INTEGER :: tsz, ncid, ncvarid  
     INTEGER :: i, iret, ipt, itax  
     INTEGER :: io, nbin, nbout  
     INTEGER, DIMENSION(4) :: corner, edges  
     INTEGER :: itime  
   
     REAL :: rtime  
     CHARACTER(LEN=7) :: tmp_opp  
   
     REAL, ALLOCATABLE, SAVE :: buff_tmp2(:)  
     INTEGER, SAVE          :: buff_tmp2_sz  
     REAL, ALLOCATABLE, SAVE :: buffer_used(:)  
     INTEGER, SAVE          :: buffer_sz  
   
     !---------------------------------------------------------------------  
   
     ! The sizes which can be encoutered  
   
     tsz = zsize(pfileid, varid, 1)*zsize(pfileid, varid, 2)*zsize(pfileid, varid, 3)  
   
     ! 1.0 We allocate the memory needed to store the data between write  
     !     and the temporary space needed for operations.  
     !     We have to keep precedent buffer if needed  
   
     IF (.NOT. ALLOCATED(buffer)) THEN  
        ALLOCATE(buffer(buff_pos))  
        buffer_sz = buff_pos  
        buffer(:)=0.0  
     ELSE IF (buffer_sz < buff_pos) THEN  
        IF (SUM(buffer)/=0.0) THEN  
           ALLOCATE (buffer_used(buffer_sz))  
           buffer_used(:)=buffer(:)  
           DEALLOCATE (buffer)  
           ALLOCATE (buffer(buff_pos))  
           buffer_sz = buff_pos  
           buffer(:SIZE(buffer_used))=buffer_used  
           DEALLOCATE (buffer_used)  
        ELSE  
           DEALLOCATE (buffer)  
           ALLOCATE (buffer(buff_pos))  
           buffer_sz = buff_pos  
           buffer(:)=0.0  
        ENDIF  
     ENDIF  
   
     ! The buffers are only deallocated when more space is needed. This  
     ! reduces the umber of allocates but increases memory needs.  
   
     IF (.NOT.ALLOCATED(buff_tmp2)) THEN  
        ALLOCATE (buff_tmp2(datasz_max(pfileid, varid)))  
        buff_tmp2_sz = datasz_max(pfileid, varid)  
     ELSE IF ( datasz_max(pfileid, varid) > buff_tmp2_sz) THEN  
        DEALLOCATE (buff_tmp2)  
        ALLOCATE (buff_tmp2(datasz_max(pfileid, varid)))  
        buff_tmp2_sz = datasz_max(pfileid, varid)  
     ENDIF  
   
     rtime = pitau * deltat(pfileid)  
     tmp_opp = topp(pfileid, varid)  
   
     ! 3.0 Do the operations or transfer the slab of data into buff_tmp  
   
     ! 3.1 DO the Operations only if needed  
   
     IF ( do_oper ) THEN  
        i = pfileid  
        nbout = nbdpt  
   
        !-- 3.4 We continue the sequence of operations  
        !--     we started in the interface routine  
   
        DO io = 2, nbopp(i, varid), 2  
           nbin = nbout  
           nbout = datasz_max(i, varid)  
           CALL mathop(sopps(i, varid, io), nbin, buff_tmp, missing_val, &  
                &      nbindex, nindex, scal(i, varid, io), nbout, buff_tmp2)  
   
           nbin = nbout  
           nbout = datasz_max(i, varid)  
           CALL mathop(sopps(i, varid, io+1), nbin, buff_tmp2, missing_val, &  
                &      nbindex, nindex, scal(i, varid, io+1), nbout, buff_tmp)  
        ENDDO  
   
        !   3.5 Zoom into the data  
   
        CALL trans_buff &  
             &      (zorig(i, varid, 1), zsize(i, varid, 1), &  
             &       zorig(i, varid, 2), zsize(i, varid, 2), &  
             &       zorig(i, varid, 3), zsize(i, varid, 3), &  
             &       scsize(i, varid, 1), scsize(i, varid, 2), scsize(i, varid, 3), &  
             &       buff_tmp, buff_tmp2_sz, buff_tmp2)  
   
        !-- 5.0 Do the operations if needed. In the case of instantaneous  
        !--     output we do not transfer to the buffer.  
   
        ipt = point(pfileid, varid)  
   
        IF (     (TRIM(tmp_opp) /= "inst") &  
             &    .AND.(TRIM(tmp_opp) /= "once") ) THEN  
           CALL moycum(tmp_opp, tsz, buffer(ipt:), &  
                &       buff_tmp2, nb_opp(pfileid, varid))  
        ENDIF  
   
        last_opp(pfileid, varid) = pitau  
        nb_opp(pfileid, varid) = nb_opp(pfileid, varid)+1  
   
445      ENDIF      ENDIF
446    
447      ! 6.0 Write to file if needed    END SUBROUTINE histwrite_r3d
   
     IF ( do_write ) THEN  
   
        ncvarid = ncvar_ids(pfileid, varid)  
        ncid = ncdf_ids(pfileid)  
   
        !-- 6.1 Do the operations that are needed before writting  
   
        IF (     (TRIM(tmp_opp) /= "inst") &  
             &    .AND.(TRIM(tmp_opp) /= "once") ) THEN  
           rtime = (rtime+last_wrt(pfileid, varid)*deltat(pfileid))/2.0  
        ENDIF  
   
        !-- 6.2 Add a value to the time axis of this variable if needed  
   
        IF (     (TRIM(tmp_opp) /= "l_max") &  
             &    .AND.(TRIM(tmp_opp) /= "l_min") &  
             &    .AND.(TRIM(tmp_opp) /= "once") ) THEN  
   
           itax = var_axid(pfileid, varid)  
           itime = nb_wrt(pfileid, varid)+1  
   
           IF (tax_last(pfileid, itax) < itime) THEN  
              iret = NF90_PUT_VAR (ncid, tdimid(pfileid, itax), (/ rtime /), &  
                   &                            start=(/ itime /), count=(/ 1 /))  
              tax_last(pfileid, itax) = itime  
           ENDIF  
        ELSE  
           itime=1  
        ENDIF  
   
        !-- 6.3 Write the data. Only in the case of instantaneous output  
        !       we do not write the buffer.  
   
        IF (scsize(pfileid, varid, 3) == 1) THEN  
           IF (regular(pfileid)) THEN  
              corner(1:4) = (/ 1, 1, itime, 0 /)  
              edges(1:4) = (/ zsize(pfileid, varid, 1), &  
                   &                      zsize(pfileid, varid, 2), &  
                   &                       1, 0 /)  
           ELSE  
              corner(1:4) = (/ 1, itime, 0, 0 /)  
              edges(1:4) = (/ zsize(pfileid, varid, 1), 1, 0, 0 /)  
           ENDIF  
        ELSE  
           IF ( regular(pfileid) ) THEN  
              corner(1:4) = (/ 1, 1, 1, itime /)  
              edges(1:4) = (/ zsize(pfileid, varid, 1), &  
                   &                      zsize(pfileid, varid, 2), &  
                   &                      zsize(pfileid, varid, 3), 1 /)  
           ELSE  
              corner(1:4) = (/ 1, 1, itime, 0 /)  
              edges(1:4) = (/ zsize(pfileid, varid, 1), &  
                   &                      zsize(pfileid, varid, 3), 1, 0 /)  
           ENDIF  
        ENDIF  
   
        ipt = point(pfileid, varid)  
   
        IF (     (TRIM(tmp_opp) /= "inst") &  
             &      .AND.(TRIM(tmp_opp) /= "once") ) THEN  
           iret = NF90_PUT_VAR (ncid, ncvarid, buffer(ipt:), &  
                &                       start=corner(1:4), count=edges(1:4))  
        ELSE  
           iret = NF90_PUT_VAR (ncid, ncvarid, buff_tmp2, &  
                &                       start=corner(1:4), count=edges(1:4))  
        ENDIF  
   
        last_wrt(pfileid, varid) = pitau  
        nb_wrt(pfileid, varid) = nb_wrt(pfileid, varid)+1  
        nb_opp(pfileid, varid) = 0  
        !---  
        !   After the write the file can be synchronized so that no data is  
        !   lost in case of a crash. This feature gives up on the benefits of  
        !   buffering and should only be used in debuging mode. A flag is  
        !   needed here to switch to this mode.  
        !---  
        !   iret = NF90_SYNC (ncid)  
   
     ENDIF  
     !----------------------------  
   END SUBROUTINE histwrite_real  
   
   !*************************************************************  
   
   SUBROUTINE histvar_seq (pfid, pvarname, pvid)  
   
     !- This subroutine optimized the search for the variable in the table.  
     !- In a first phase it will learn the succession of the variables  
     !- called and then it will use the table to guess what comes next.  
     !- It is the best solution to avoid lengthy searches through array  
     !- vectors.  
   
     !- ARGUMENTS :  
   
     !- pfid  : id of the file on which we work  
     !- pvarname : The name of the variable we are looking for  
     !- pvid     : The var id we found  
   
     USE stringop, ONLY: find_str  
     USE errioipsl, ONLY : histerr  
   
     INTEGER, INTENT(in)  :: pfid  
     CHARACTER(LEN=*), INTENT(IN) :: pvarname  
     INTEGER, INTENT(out) :: pvid  
   
     LOGICAL, SAVE :: learning(nb_files_max)=.TRUE.  
     INTEGER, SAVE :: overlap(nb_files_max) = -1  
     INTEGER, SAVE :: varseq(nb_files_max, nb_var_max*3)  
     INTEGER, SAVE :: varseq_len(nb_files_max) = 0  
     INTEGER, SAVE :: varseq_pos(nb_files_max)  
     INTEGER, SAVE :: varseq_err(nb_files_max) = 0  
     INTEGER      :: nb, sp, nx, pos, ib  
     CHARACTER(LEN=20), DIMENSION(nb_var_max) :: tab_str20  
     CHARACTER(LEN=20) :: str20  
     CHARACTER(LEN=70) :: str70  
     INTEGER      :: tab_str20_length(nb_var_max)  
   
     !---------------------------------------------------------------------  
     nb = nb_var(pfid)  
   
     IF (learning(pfid)) THEN  
   
        !-- 1.0 We compute the length over which we are going  
        !--     to check the overlap  
   
        IF (overlap(pfid) <= 0) THEN  
           IF (nb_var(pfid) > 6) THEN  
              overlap(pfid) = nb_var(pfid)/3*2  
           ELSE  
              overlap(pfid) = nb_var(pfid)  
           ENDIF  
        ENDIF  
   
        !-- 1.1 Find the position of this string  
   
        str20 = pvarname  
        tab_str20(1:nb) = name(pfid, 1:nb)  
        tab_str20_length(1:nb) = name_length(pfid, 1:nb)  
   
        CALL find_str (nb, tab_str20, tab_str20_length, str20, pos)  
   
        IF (pos > 0) THEN  
           pvid = pos  
        ELSE  
           CALL histerr (3, "histvar_seq", &  
                &      'The name of the variable you gave has not been declared', &  
                &      'You should use subroutine histdef for declaring variable', &  
                &      TRIM(str20))  
        ENDIF  
   
        !-- 1.2 If we have not given up we store the position  
        !--     in the sequence of calls  
   
        IF ( varseq_err(pfid) .GE. 0 ) THEN  
           sp = varseq_len(pfid)+1  
           IF (sp <= nb_var_max*3) THEN  
              varseq(pfid, sp) = pvid  
              varseq_len(pfid) = sp  
           ELSE  
              CALL histerr (2, "histvar_seq", &  
                   &       'The learning process has failed and we give up. '// &  
                   &       'Either you sequence is', &  
                   &       'too complex or I am too dumb. '// &  
                   &       'This will only affect the efficiency', &  
                   &       'of your code. Thus if you wish to save time'// &  
                   &       ' contact the IOIPSL team. ')  
              WRITE(*, *) 'The sequence we have found up to now :'  
              WRITE(*, *) varseq(pfid, 1:sp-1)  
              varseq_err(pfid) = -1  
           ENDIF  
   
           !---- 1.3 Check if we have found the right overlap  
   
           IF (varseq_len(pfid) .GE. overlap(pfid)*2) THEN  
   
              !------ We skip a few variables if needed as they could come  
              !------ from the initialisation of the model.  
   
              DO ib = 0, sp-overlap(pfid)*2  
                 IF ( learning(pfid) .AND.&  
                      & SUM(ABS(varseq(pfid, ib+1:ib+overlap(pfid)) -&  
                      & varseq(pfid, sp-overlap(pfid)+1:sp))) == 0 ) THEN  
                    learning(pfid) = .FALSE.  
                    varseq_len(pfid) = sp-overlap(pfid)-ib  
                    varseq_pos(pfid) = overlap(pfid)+ib  
                    varseq(pfid, 1:varseq_len(pfid)) = &  
                         &            varseq(pfid, ib+1:ib+varseq_len(pfid))  
                 ENDIF  
              ENDDO  
           ENDIF  
        ENDIF  
     ELSE  
   
        !-- 2.0 Now we know how the calls to histwrite are sequenced  
        !--     and we can get a guess at the var ID  
   
        nx = varseq_pos(pfid)+1  
        IF (nx > varseq_len(pfid)) nx = 1  
   
        pvid = varseq(pfid, nx)  
   
        IF (    (INDEX(name(pfid, pvid), pvarname) <= 0)         &  
             &    .OR.(name_length(pfid, pvid) /= len_trim(pvarname)) ) THEN  
           str20 = pvarname  
           tab_str20(1:nb) = name(pfid, 1:nb)  
           tab_str20_length(1:nb) = name_length(pfid, 1:nb)  
           CALL find_str (nb, tab_str20, tab_str20_length, str20, pos)  
           IF (pos > 0) THEN  
              pvid = pos  
           ELSE  
              CALL histerr(3, "histvar_seq", &  
                   &  'The name of the variable you gave has not been declared', &  
                   &  'You should use subroutine histdef for declaring variable', str20)  
           ENDIF  
           varseq_err(pfid) = varseq_err(pfid)+1  
        ELSE  
   
           !---- We only keep the new position if we have found the variable  
           !---- this way. This way an out of sequence call to histwrite does  
           !---- not defeat the process.  
   
           varseq_pos(pfid) = nx  
        ENDIF  
   
        IF (varseq_err(pfid) .GE. 10) THEN  
           WRITE(str70, '("for file ", I3)') pfid  
           CALL histerr(2, "histvar_seq", &  
                &  'There were 10 errors in the learned sequence of variables', &  
                &  str70, 'This looks like a bug, please report it.')  
           varseq_err(pfid) = 0  
        ENDIF  
     ENDIF  
   
   END SUBROUTINE histvar_seq  
448    
449  END MODULE histwrite_m  END MODULE histwrite_m
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