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surf_land_orchidee_nofrein_mod.F90 @ 5452

Last change on this file since 5452 was 5305, checked in by abarral, 2 months ago
Turn YOMCST2.h.h into module
Property copyright set to Name of program: LMDZ Creation date: 1984 Version: LMDZ5 License: CeCILL version 2 Holder: Laboratoire de m\'et\'eorologie dynamique, CNRS, UMR 8539 See the license file in the root directory Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 23.1 KB

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1	!
2	! $Id: surf_land_orchidee_nofrein_mod.F90 5305 2024-10-30 18:29:21Z aborella $
3	!
4	!
5	MODULE surf_land_orchidee_nofrein_mod
6	#ifdef ORCHIDEE_NOFREIN
7	!
8	! This module controles the interface towards the model ORCHIDEE.
9	!
10	! Compatibility with ORCHIDIEE :
11	! This module is compiled only if cpp key ORCHIDEE_NOFREIN is defined.
12	! The current version can be used with ORCHIDEE/trunk from revision 3525-4465
13	! (it can be used for later revisions also but it is not needed.)
14	!
15	!
16	! Subroutines in this module : surf_land_orchidee
17	! Init_orchidee_index
18	! Get_orchidee_communicator
19	! Init_neighbours
20
21	USE dimphy
22	#ifdef CPP_VEGET
23	USE intersurf ! module d'ORCHIDEE
24	#endif
25	USE cpl_mod, ONLY : cpl_send_land_fields
26	USE surface_data, ONLY : type_ocean
27	USE geometry_mod, ONLY : dx, dy
28	USE mod_grid_phy_lmdz
29	USE mod_phys_lmdz_para, mpi_root_rank=>mpi_master
30
31	IMPLICIT NONE
32
33	PRIVATE
34	PUBLIC :: surf_land_orchidee
35
36	CONTAINS
37	!
38	!****************************************************************************************
39	!
40	SUBROUTINE surf_land_orchidee(itime, dtime, date0, knon, &
41	knindex, rlon, rlat, yrmu0, pctsrf, &
42	debut, lafin, &
43	plev, u1_lay, v1_lay, gustiness, temp_air, spechum, epot_air, ccanopy, &
44	tq_cdrag, petAcoef, peqAcoef, petBcoef, peqBcoef, &
45	precip_rain, precip_snow, lwdown, swnet, swdown, &
46	ps, q2m, t2m, &
47	evap, fluxsens, fluxlat, &
48	tsol_rad, tsurf_new, alb1_new, alb2_new, &
49	emis_new, z0m_new, z0h_new, qsurf, &
50	veget, lai, height )
51
52
53	USE mod_surf_para
54	USE mod_synchro_omp
55	USE carbon_cycle_mod, ONLY : carbon_cycle_cpl
56	USE indice_sol_mod
57	USE print_control_mod, ONLY: lunout
58	USE mod_grid_phy_lmdz, ONLY: nbp_lon, nbp_lat
59	#ifdef CPP_VEGET
60	USE time_phylmdz_mod, ONLY: itau_phy
61	#endif
62	USE yomcst_mod_h
63	USE compbl_mod_h
64	USE dimpft_mod_h
65	!
66	! Cette routine sert d'interface entre le modele atmospherique et le
67	! modele de sol continental. Appel a sechiba
68	!
69	! L. Fairhead 02/2000
70	!
71	! input:
72	! itime numero du pas de temps
73	! dtime pas de temps de la physique (en s)
74	! nisurf index de la surface a traiter (1 = sol continental)
75	! knon nombre de points de la surface a traiter
76	! knindex index des points de la surface a traiter
77	! rlon longitudes de la grille entiere
78	! rlat latitudes de la grille entiere
79	! pctsrf tableau des fractions de surface de chaque maille
80	! debut logical: 1er appel a la physique (lire les restart)
81	! lafin logical: dernier appel a la physique (ecrire les restart)
82	! (si false calcul simplifie des fluxs sur les continents)
83	! plev hauteur de la premiere couche (Pa)
84	! u1_lay vitesse u 1ere couche
85	! v1_lay vitesse v 1ere couche
86	! temp_air temperature de l'air 1ere couche
87	! spechum humidite specifique 1ere couche
88	! epot_air temp pot de l'air
89	! ccanopy concentration CO2 canopee, correspond au co2_send de
90	! carbon_cycle_mod ou valeur constant co2_ppm
91	! tq_cdrag cdrag
92	! petAcoef coeff. A de la resolution de la CL pour t
93	! peqAcoef coeff. A de la resolution de la CL pour q
94	! petBcoef coeff. B de la resolution de la CL pour t
95	! peqBcoef coeff. B de la resolution de la CL pour q
96	! precip_rain precipitation liquide
97	! precip_snow precipitation solide
98	! lwdown flux IR descendant a la surface
99	! swnet flux solaire net
100	! swdown flux solaire entrant a la surface
101	! ps pression au sol
102	! radsol rayonnement net aus sol (LW + SW)
103	!
104	!
105	! output:
106	! evap evaporation totale
107	! fluxsens flux de chaleur sensible
108	! fluxlat flux de chaleur latente
109	! tsol_rad
110	! tsurf_new temperature au sol
111	! alb1_new albedo in visible SW interval
112	! alb2_new albedo in near IR interval
113	! emis_new emissivite
114	! z0m_new surface roughness for momentum
115	! z0h_new surface roughness for heat
116	! qsurf air moisture at surface
117	!
118
119	!
120	! Parametres d'entree
121	!****************************************************************************************
122	INTEGER, INTENT(IN) :: itime
123	REAL, INTENT(IN) :: dtime
124	REAL, INTENT(IN) :: date0
125	INTEGER, INTENT(IN) :: knon
126	INTEGER, DIMENSION(klon), INTENT(IN) :: knindex
127	LOGICAL, INTENT(IN) :: debut, lafin
128	REAL, DIMENSION(klon,nbsrf), INTENT(IN) :: pctsrf
129	REAL, DIMENSION(klon), INTENT(IN) :: rlon, rlat
130	REAL, DIMENSION(klon), INTENT(IN) :: yrmu0 ! cosine of solar zenith angle
131	REAL, DIMENSION(klon), INTENT(IN) :: plev
132	REAL, DIMENSION(klon), INTENT(IN) :: u1_lay, v1_lay, gustiness
133	REAL, DIMENSION(klon), INTENT(IN) :: temp_air, spechum
134	REAL, DIMENSION(klon), INTENT(IN) :: epot_air, ccanopy
135	REAL, DIMENSION(klon), INTENT(IN) :: tq_cdrag
136	REAL, DIMENSION(klon), INTENT(IN) :: petAcoef, peqAcoef
137	REAL, DIMENSION(klon), INTENT(IN) :: petBcoef, peqBcoef
138	REAL, DIMENSION(klon), INTENT(IN) :: precip_rain, precip_snow
139	REAL, DIMENSION(klon), INTENT(IN) :: lwdown, swnet, swdown, ps
140	REAL, DIMENSION(klon), INTENT(IN) :: q2m, t2m
141
142	! Parametres de sortie
143	!****************************************************************************************
144	REAL, DIMENSION(klon), INTENT(OUT) :: evap, fluxsens, fluxlat, qsurf
145	REAL, DIMENSION(klon), INTENT(OUT) :: tsol_rad, tsurf_new
146	REAL, DIMENSION(klon), INTENT(OUT) :: alb1_new, alb2_new
147	REAL, DIMENSION(klon), INTENT(OUT) :: emis_new, z0m_new, z0h_new
148	REAL, DIMENSION(klon,nvm_lmdz), INTENT(OUT) :: veget ! dummy variables
149	REAL, DIMENSION(klon,nvm_lmdz), INTENT(OUT) :: lai ! dummy variables
150	REAL, DIMENSION(klon,nvm_lmdz), INTENT(OUT) :: height! dummy variables
151
152
153	! Local
154	!****************************************************************************************
155	INTEGER :: ij, jj, igrid, ireal, index
156	INTEGER :: error
157	REAL, DIMENSION(klon) :: swdown_vrai
158	CHARACTER (len = 20) :: modname = 'surf_land_orchidee'
159	CHARACTER (len = 80) :: abort_message
160	LOGICAL,SAVE :: check = .FALSE.
161	!$OMP THREADPRIVATE(check)
162
163	! type de couplage dans sechiba
164	! character (len=10) :: coupling = 'implicit'
165	! drapeaux controlant les appels dans SECHIBA
166	! type(control_type), save :: control_in
167	! Preserved albedo
168	REAL, ALLOCATABLE, DIMENSION(:), SAVE :: albedo_keep, zlev
169	!$OMP THREADPRIVATE(albedo_keep,zlev)
170	! coordonnees geographiques
171	REAL, ALLOCATABLE, DIMENSION(:,:), SAVE :: lalo
172	!$OMP THREADPRIVATE(lalo)
173	! pts voisins
174	INTEGER,ALLOCATABLE, DIMENSION(:,:), SAVE :: neighbours
175	!$OMP THREADPRIVATE(neighbours)
176	! fractions continents
177	REAL,ALLOCATABLE, DIMENSION(:), SAVE :: contfrac
178	!$OMP THREADPRIVATE(contfrac)
179	! resolution de la grille
180	REAL, ALLOCATABLE, DIMENSION (:,:), SAVE :: resolution
181	!$OMP THREADPRIVATE(resolution)
182
183	REAL, ALLOCATABLE, DIMENSION (:,:), SAVE :: lon_scat, lat_scat
184	!$OMP THREADPRIVATE(lon_scat,lat_scat)
185
186	LOGICAL, SAVE :: lrestart_read = .TRUE.
187	!$OMP THREADPRIVATE(lrestart_read)
188	LOGICAL, SAVE :: lrestart_write = .FALSE.
189	!$OMP THREADPRIVATE(lrestart_write)
190
191	REAL, DIMENSION(knon,2) :: albedo_out
192
193	! Pb de nomenclature
194	REAL, DIMENSION(klon) :: petA_orc, peqA_orc
195	REAL, DIMENSION(klon) :: petB_orc, peqB_orc
196	! Pb de correspondances de grilles
197	INTEGER, DIMENSION(:), SAVE, ALLOCATABLE :: ig, jg
198	!$OMP THREADPRIVATE(ig,jg)
199	INTEGER :: indi, indj
200	INTEGER, SAVE, ALLOCATABLE,DIMENSION(:) :: ktindex
201	!$OMP THREADPRIVATE(ktindex)
202
203	! Essai cdrag
204	REAL, DIMENSION(klon) :: cdrag
205	INTEGER,SAVE :: offset
206	!$OMP THREADPRIVATE(offset)
207
208	REAL, DIMENSION(klon_glo) :: rlon_g,rlat_g
209	INTEGER, SAVE :: orch_comm
210	!$OMP THREADPRIVATE(orch_comm)
211
212	REAL, ALLOCATABLE, DIMENSION(:), SAVE :: coastalflow
213	!$OMP THREADPRIVATE(coastalflow)
214	REAL, ALLOCATABLE, DIMENSION(:), SAVE :: riverflow
215	!$OMP THREADPRIVATE(riverflow)
216
217	INTEGER :: orch_omp_rank
218	INTEGER :: orch_omp_size
219	!
220	! Fin definition
221	!****************************************************************************************
222
223	IF (check) WRITE(lunout,*)'Entree ', modname
224
225	IF (ifl_pbltree == 1) THEN
226	abort_message='Pb de coherence: cette interface vers ORCHIDEE ne peut pas etre utilise avec ifl_pbltree'
227	CALL abort_physic(modname,abort_message,1)
228	END IF
229
230	! Initialisation
231
232	IF (debut) THEN
233	! Test of coherence between variable ok_veget and cpp key CPP_VEGET
234	#ifndef CPP_VEGET
235	abort_message='Pb de coherence: ok_veget = .true. mais CPP_VEGET = .false.'
236	CALL abort_physic(modname,abort_message,1)
237	#endif
238
239	CALL Init_surf_para(knon)
240	ALLOCATE(ktindex(knon))
241	IF ( .NOT. ALLOCATED(albedo_keep)) THEN
242	!ym ALLOCATE(albedo_keep(klon))
243	!ym bizarre que non allou� en knon precedement
244	ALLOCATE(albedo_keep(knon))
245	ALLOCATE(zlev(knon))
246	ENDIF
247	! Pb de correspondances de grilles
248	ALLOCATE(ig(klon))
249	ALLOCATE(jg(klon))
250	ig(1) = 1
251	jg(1) = 1
252	indi = 0
253	indj = 2
254	DO igrid = 2, klon - 1
255	indi = indi + 1
256	IF ( indi > nbp_lon) THEN
257	indi = 1
258	indj = indj + 1
259	ENDIF
260	ig(igrid) = indi
261	jg(igrid) = indj
262	ENDDO
263	ig(klon) = 1
264	jg(klon) = nbp_lat
265
266	IF ((.NOT. ALLOCATED(lalo))) THEN
267	ALLOCATE(lalo(knon,2), stat = error)
268	IF (error /= 0) THEN
269	abort_message='Pb allocation lalo'
270	CALL abort_physic(modname,abort_message,1)
271	ENDIF
272	ENDIF
273	IF ((.NOT. ALLOCATED(lon_scat))) THEN
274	ALLOCATE(lon_scat(nbp_lon,nbp_lat), stat = error)
275	IF (error /= 0) THEN
276	abort_message='Pb allocation lon_scat'
277	CALL abort_physic(modname,abort_message,1)
278	ENDIF
279	ENDIF
280	IF ((.NOT. ALLOCATED(lat_scat))) THEN
281	ALLOCATE(lat_scat(nbp_lon,nbp_lat), stat = error)
282	IF (error /= 0) THEN
283	abort_message='Pb allocation lat_scat'
284	CALL abort_physic(modname,abort_message,1)
285	ENDIF
286	ENDIF
287	lon_scat = 0.
288	lat_scat = 0.
289	DO igrid = 1, knon
290	index = knindex(igrid)
291	lalo(igrid,2) = rlon(index)
292	lalo(igrid,1) = rlat(index)
293	ENDDO
294
295
296
297	CALL Gather(rlon,rlon_g)
298	CALL Gather(rlat,rlat_g)
299
300	IF (is_mpi_root) THEN
301	index = 1
302	DO jj = 2, nbp_lat-1
303	DO ij = 1, nbp_lon
304	index = index + 1
305	lon_scat(ij,jj) = rlon_g(index)
306	lat_scat(ij,jj) = rlat_g(index)
307	ENDDO
308	ENDDO
309	lon_scat(:,1) = lon_scat(:,2)
310	lat_scat(:,1) = rlat_g(1)
311	lon_scat(:,nbp_lat) = lon_scat(:,2)
312	lat_scat(:,nbp_lat) = rlat_g(klon_glo)
313	ENDIF
314
315	CALL bcast(lon_scat)
316	CALL bcast(lat_scat)
317	!
318	! Allouer et initialiser le tableau des voisins et des fraction de continents
319	!
320	IF ( (.NOT.ALLOCATED(neighbours))) THEN
321	ALLOCATE(neighbours(knon,8), stat = error)
322	IF (error /= 0) THEN
323	abort_message='Pb allocation neighbours'
324	CALL abort_physic(modname,abort_message,1)
325	ENDIF
326	ENDIF
327	neighbours = -1.
328	IF (( .NOT. ALLOCATED(contfrac))) THEN
329	ALLOCATE(contfrac(knon), stat = error)
330	IF (error /= 0) THEN
331	abort_message='Pb allocation contfrac'
332	CALL abort_physic(modname,abort_message,1)
333	ENDIF
334	ENDIF
335
336	DO igrid = 1, knon
337	ireal = knindex(igrid)
338	contfrac(igrid) = pctsrf(ireal,is_ter)
339	ENDDO
340
341
342	CALL Init_neighbours(knon,neighbours,knindex,pctsrf(:,is_ter))
343
344	!
345	! Allocation et calcul resolutions
346	IF ( (.NOT.ALLOCATED(resolution))) THEN
347	ALLOCATE(resolution(knon,2), stat = error)
348	IF (error /= 0) THEN
349	abort_message='Pb allocation resolution'
350	CALL abort_physic(modname,abort_message,1)
351	ENDIF
352	ENDIF
353	DO igrid = 1, knon
354	ij = knindex(igrid)
355	resolution(igrid,1) = dx(ij)
356	resolution(igrid,2) = dy(ij)
357	ENDDO
358
359	ALLOCATE(coastalflow(klon), stat = error)
360	IF (error /= 0) THEN
361	abort_message='Pb allocation coastalflow'
362	CALL abort_physic(modname,abort_message,1)
363	ENDIF
364
365	ALLOCATE(riverflow(klon), stat = error)
366	IF (error /= 0) THEN
367	abort_message='Pb allocation riverflow'
368	CALL abort_physic(modname,abort_message,1)
369	ENDIF
370	!
371	! carbon_cycle_cpl not possible with this interface and version of ORHCHIDEE
372	!
373	IF (carbon_cycle_cpl) THEN
374	abort_message='carbon_cycle_cpl not yet possible with this interface of ORCHIDEE'
375	CALL abort_physic(modname,abort_message,1)
376	END IF
377
378	ENDIF ! (fin debut)
379
380
381	!
382	! Appel a la routine sols continentaux
383	!
384	IF (lafin) lrestart_write = .TRUE.
385	IF (check) WRITE(lunout,*)'lafin ',lafin,lrestart_write
386
387	petA_orc(1:knon) = petBcoef(1:knon) * dtime
388	petB_orc(1:knon) = petAcoef(1:knon)
389	peqA_orc(1:knon) = peqBcoef(1:knon) * dtime
390	peqB_orc(1:knon) = peqAcoef(1:knon)
391
392	cdrag = 0.
393	cdrag(1:knon) = tq_cdrag(1:knon)
394
395	! zlev(1:knon) = (100.plev(1:knon))/((ps(1:knon)/287.05temp_air(1:knon))*9.80665)
396	! zlev(1:knon) = (100.plev(1:knon))/((ps(1:knon)/RDtemp_air(1:knon))*RG)
397	zlev(1:knon) = plev(1:knon)RDtemp_air(1:knon)/((ps(1:knon)100.0)RG)
398
399
400	! PF et PASB
401	! where(cdrag > 0.01)
402	! cdrag = 0.01
403	! endwhere
404	! write(,)'Cdrag = ',minval(cdrag),maxval(cdrag)
405
406
407	IF (debut) THEN
408	CALL Init_orchidee_index(knon,knindex,offset,ktindex)
409	CALL Get_orchidee_communicator(orch_comm,orch_omp_size,orch_omp_rank)
410	CALL Init_synchro_omp
411
412	IF (knon > 0) THEN
413	#ifdef CPP_VEGET
414	CALL Init_intersurf(nbp_lon,nbp_lat,knon,ktindex,offset,orch_omp_size,orch_omp_rank,orch_comm)
415	#endif
416	ENDIF
417
418
419	IF (knon > 0) THEN
420
421	#ifdef CPP_VEGET
422	CALL intersurf_initialize_gathered (itime+itau_phy-1, nbp_lon, nbp_lat, knon, ktindex, dtime, &
423	lrestart_read, lrestart_write, lalo, contfrac, neighbours, resolution, date0, &
424	zlev, u1_lay, v1_lay, spechum, temp_air, epot_air, &
425	cdrag, petA_orc, peqA_orc, petB_orc, peqB_orc, &
426	precip_rain, precip_snow, lwdown, swnet, swdown, ps, &
427	evap, fluxsens, fluxlat, coastalflow, riverflow, &
428	tsol_rad, tsurf_new, qsurf, albedo_out, emis_new, z0m_new, &
429	lon_scat, lat_scat, q2m, t2m, z0h_new)
430	#endif
431	ENDIF
432
433	CALL Synchro_omp
434
435	albedo_keep(1:knon) = (albedo_out(1:knon,1)+albedo_out(1:knon,2))/2.
436
437	ENDIF
438
439
440	! swdown_vrai(1:knon) = swnet(1:knon)/(1. - albedo_keep(1:knon))
441	swdown_vrai(1:knon) = swdown(1:knon)
442
443	IF (knon > 0) THEN
444	#ifdef CPP_VEGET
445	CALL intersurf_main_gathered (itime+itau_phy, nbp_lon, nbp_lat, knon, ktindex, dtime, &
446	lrestart_read, lrestart_write, lalo, &
447	contfrac, neighbours, resolution, date0, &
448	zlev, u1_lay(1:knon), v1_lay(1:knon), spechum(1:knon), temp_air(1:knon), epot_air(1:knon), ccanopy(1:knon), &
449	cdrag(1:knon), petA_orc(1:knon), peqA_orc(1:knon), petB_orc(1:knon), peqB_orc(1:knon), &
450	precip_rain(1:knon), precip_snow(1:knon), lwdown(1:knon), swnet(1:knon), swdown_vrai(1:knon), ps(1:knon), &
451	evap(1:knon), fluxsens(1:knon), fluxlat(1:knon), coastalflow(1:knon), riverflow(1:knon), &
452	tsol_rad(1:knon), tsurf_new(1:knon), qsurf(1:knon), albedo_out(1:knon,:), emis_new(1:knon), z0m_new(1:knon), &
453	lon_scat, lat_scat, q2m, t2m, z0h_new(1:knon), coszang=yrmu0(1:knon))
454	#endif
455	ENDIF
456
457	CALL Synchro_omp
458
459	albedo_keep(1:knon) = (albedo_out(1:knon,1)+albedo_out(1:knon,2))/2.
460
461	!* Send to coupler
462	!
463	IF (type_ocean=='couple') THEN
464	CALL cpl_send_land_fields(itime, knon, knindex, &
465	riverflow, coastalflow)
466	ENDIF
467
468	alb1_new(1:knon) = albedo_out(1:knon,1)
469	alb2_new(1:knon) = albedo_out(1:knon,2)
470
471	! Convention orchidee: positif vers le haut
472	fluxsens(1:knon) = -1. * fluxsens(1:knon)
473	fluxlat(1:knon) = -1. * fluxlat(1:knon)
474
475	! evap = -1. * evap
476
477	IF (debut) lrestart_read = .FALSE.
478
479	IF (debut) CALL Finalize_surf_para
480
481
482	END SUBROUTINE surf_land_orchidee
483	!
484	!****************************************************************************************
485	!
486	SUBROUTINE Init_orchidee_index(knon,knindex,offset,ktindex)
487	USE mod_surf_para
488	USE mod_grid_phy_lmdz
489
490	INTEGER,INTENT(IN) :: knon
491	INTEGER,INTENT(IN) :: knindex(klon)
492	INTEGER,INTENT(OUT) :: offset
493	INTEGER,INTENT(OUT) :: ktindex(klon)
494
495	INTEGER :: ktindex_glo(knon_glo)
496	INTEGER :: offset_para(0:omp_size*mpi_size-1)
497	INTEGER :: LastPoint
498	INTEGER :: task
499
500	ktindex(1:knon)=knindex(1:knon)+(klon_mpi_begin-1)+(klon_omp_begin-1)+nbp_lon-1
501
502	CALL gather_surf(ktindex(1:knon),ktindex_glo)
503
504	IF (is_mpi_root .AND. is_omp_root) THEN
505	LastPoint=0
506	DO Task=0,mpi_size*omp_size-1
507	IF (knon_glo_para(Task)>0) THEN
508	offset_para(task)= LastPoint-MOD(LastPoint,nbp_lon)
509	LastPoint=ktindex_glo(knon_glo_end_para(task))
510	ENDIF
511	ENDDO
512	ENDIF
513
514	CALL bcast(offset_para)
515
516	offset=offset_para(omp_size*mpi_rank+omp_rank)
517
518	ktindex(1:knon)=ktindex(1:knon)-offset
519
520	END SUBROUTINE Init_orchidee_index
521
522	!
523	!*********************** *************************************************************
524	!
525
526	SUBROUTINE Get_orchidee_communicator(orch_comm,orch_omp_size,orch_omp_rank)
527	USE mod_surf_para
528	USE lmdz_mpi
529
530	INTEGER,INTENT(OUT) :: orch_comm
531	INTEGER,INTENT(OUT) :: orch_omp_size
532	INTEGER,INTENT(OUT) :: orch_omp_rank
533	INTEGER :: color
534	INTEGER :: i,ierr
535	!
536	! End definition
537	!****************************************************************************************
538
539
540	IF (is_omp_root) THEN
541
542	IF (knon_mpi==0) THEN
543	color = 0
544	ELSE
545	color = 1
546	ENDIF
547
548	IF (using_mpi) THEN
549	CALL MPI_COMM_SPLIT(COMM_LMDZ_PHY,color,mpi_rank,orch_comm,ierr)
550	ENDIF
551
552	ENDIF
553	CALL bcast_omp(orch_comm)
554
555	IF (knon_mpi /= 0) THEN
556	orch_omp_size=0
557	DO i=0,omp_size-1
558	IF (knon_omp_para(i) /=0) THEN
559	orch_omp_size=orch_omp_size+1
560	IF (i==omp_rank) orch_omp_rank=orch_omp_size-1
561	ENDIF
562	ENDDO
563	ENDIF
564
565
566	END SUBROUTINE Get_orchidee_communicator
567	!
568	!****************************************************************************************
569	!
570
571	SUBROUTINE Init_neighbours(knon,neighbours,knindex,pctsrf)
572	USE mod_grid_phy_lmdz
573	USE mod_surf_para
574	USE indice_sol_mod
575	USE lmdz_mpi
576
577	! Input arguments
578	!****************************************************************************************
579	INTEGER, INTENT(IN) :: knon
580	INTEGER, DIMENSION(klon), INTENT(IN) :: knindex
581	REAL, DIMENSION(klon), INTENT(IN) :: pctsrf
582
583	! Output arguments
584	!****************************************************************************************
585	INTEGER, DIMENSION(knon,8), INTENT(OUT) :: neighbours
586
587	! Local variables
588	!****************************************************************************************
589	INTEGER :: i, igrid, jj, ij, iglob
590	INTEGER :: ierr, ireal, index
591	INTEGER, DIMENSION(8,3) :: off_ini
592	INTEGER, DIMENSION(8) :: offset
593	INTEGER, DIMENSION(nbp_lon,nbp_lat) :: correspond
594	INTEGER, DIMENSION(knon_glo) :: ktindex_glo
595	INTEGER, DIMENSION(knon_glo,8) :: neighbours_glo
596	REAL, DIMENSION(klon_glo) :: pctsrf_glo
597	INTEGER :: ktindex(klon)
598	!
599	! End definition
600	!****************************************************************************************
601
602	ktindex(1:knon)=knindex(1:knon)+(klon_mpi_begin-1)+(klon_omp_begin-1)+nbp_lon-1
603
604	CALL gather_surf(ktindex(1:knon),ktindex_glo)
605	CALL gather(pctsrf,pctsrf_glo)
606
607	IF (is_mpi_root .AND. is_omp_root) THEN
608	neighbours_glo(:,:)=-1
609	! Initialisation des offset
610	!
611	! offset bord ouest
612	off_ini(1,1) = - nbp_lon ; off_ini(2,1) = - nbp_lon + 1 ; off_ini(3,1) = 1
613	off_ini(4,1) = nbp_lon + 1 ; off_ini(5,1) = nbp_lon ; off_ini(6,1) = 2 * nbp_lon - 1
614	off_ini(7,1) = nbp_lon -1 ; off_ini(8,1) = - 1
615	! offset point normal
616	off_ini(1,2) = - nbp_lon ; off_ini(2,2) = - nbp_lon + 1 ; off_ini(3,2) = 1
617	off_ini(4,2) = nbp_lon + 1 ; off_ini(5,2) = nbp_lon ; off_ini(6,2) = nbp_lon - 1
618	off_ini(7,2) = -1 ; off_ini(8,2) = - nbp_lon - 1
619	! offset bord est
620	off_ini(1,3) = - nbp_lon ; off_ini(2,3) = - 2 * nbp_lon + 1 ; off_ini(3,3) = - nbp_lon + 1
621	off_ini(4,3) = 1 ; off_ini(5,3) = nbp_lon ; off_ini(6,3) = nbp_lon - 1
622	off_ini(7,3) = -1 ; off_ini(8,3) = - nbp_lon - 1
623	!
624	!
625	! Attention aux poles
626	!
627	DO igrid = 1, knon_glo
628	index = ktindex_glo(igrid)
629	jj = INT((index - 1)/nbp_lon) + 1
630	ij = index - (jj - 1) * nbp_lon
631	correspond(ij,jj) = igrid
632	ENDDO
633	!sonia : Les mailles des voisines doivent etre toutes egales (pour couplage orchidee)
634	IF (knon_glo == 1) THEN
635	igrid = 1
636	DO i = 1,8
637	neighbours_glo(igrid, i) = igrid
638	ENDDO
639	ELSE
640	print*,'sonia : knon_glo,ij,jj', knon_glo, ij,jj
641
642	DO igrid = 1, knon_glo
643	iglob = ktindex_glo(igrid)
644
645	IF (MOD(iglob, nbp_lon) == 1) THEN
646	offset = off_ini(:,1)
647	ELSE IF(MOD(iglob, nbp_lon) == 0) THEN
648	offset = off_ini(:,3)
649	ELSE
650	offset = off_ini(:,2)
651	ENDIF
652
653	DO i = 1, 8
654	index = iglob + offset(i)
655	ireal = (MIN(MAX(1, index - nbp_lon + 1), klon_glo))
656	IF (pctsrf_glo(ireal) > EPSFRA) THEN
657	jj = INT((index - 1)/nbp_lon) + 1
658	ij = index - (jj - 1) * nbp_lon
659	neighbours_glo(igrid, i) = correspond(ij, jj)
660	ENDIF
661	ENDDO
662	ENDDO
663	ENDIF !fin knon_glo == 1
664
665	ENDIF
666
667	DO i = 1, 8
668	CALL scatter_surf(neighbours_glo(:,i),neighbours(1:knon,i))
669	ENDDO
670	END SUBROUTINE Init_neighbours
671
672	!
673	!****************************************************************************************
674	!
675	#endif
676	END MODULE surf_land_orchidee_nofrein_mod

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