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parallel_lmdz.F90 @ 1825

Last change on this file since 1825 was 1823, checked in by Ehouarn Millour, 11 years ago
Remplacement de parallel.F90 (en conflit avec orchidée) par parallel_lmdz.F90. UG ......................................... Renaming parallel.F90 (conflicting with orchidée) into parallel_lmdz.F90. UG
File size: 14.4 KB

Line
1	!
2	! $Id: parallel.F90 1810 2013-07-24 08:06:39Z emillour $
3	!
4	MODULE parallel_lmdz
5	USE mod_const_mpi
6
7	LOGICAL,SAVE :: using_mpi=.TRUE.
8	LOGICAL,SAVE :: using_omp
9
10	integer, save :: mpi_size
11	integer, save :: mpi_rank
12	integer, save :: jj_begin
13	integer, save :: jj_end
14	integer, save :: jj_nb
15	integer, save :: ij_begin
16	integer, save :: ij_end
17	logical, save :: pole_nord
18	logical, save :: pole_sud
19
20	integer, allocatable, save, dimension(:) :: jj_begin_para
21	integer, allocatable, save, dimension(:) :: jj_end_para
22	integer, allocatable, save, dimension(:) :: jj_nb_para
23	integer, save :: OMP_CHUNK
24	integer, save :: omp_rank
25	integer, save :: omp_size
26	!$OMP THREADPRIVATE(omp_rank)
27
28	contains
29
30	subroutine init_parallel
31	USE vampir
32	implicit none
33	#ifdef CPP_MPI
34	include 'mpif.h'
35	#endif
36	#include "dimensions.h"
37	#include "paramet.h"
38	#include "iniprint.h"
39
40	integer :: ierr
41	integer :: i,j
42	integer :: type_size
43	integer, dimension(3) :: blocklen,type
44	integer :: comp_id
45	character(len=4) :: num
46	character(len=20) :: filename
47
48	#ifdef CPP_OMP
49	INTEGER :: OMP_GET_NUM_THREADS
50	EXTERNAL OMP_GET_NUM_THREADS
51	INTEGER :: OMP_GET_THREAD_NUM
52	EXTERNAL OMP_GET_THREAD_NUM
53	#endif
54
55	#ifdef CPP_MPI
56	using_mpi=.TRUE.
57	#else
58	using_mpi=.FALSE.
59	#endif
60
61
62	#ifdef CPP_OMP
63	using_OMP=.TRUE.
64	#else
65	using_OMP=.FALSE.
66	#endif
67
68	call InitVampir
69
70	IF (using_mpi) THEN
71	#ifdef CPP_MPI
72	call MPI_COMM_SIZE(COMM_LMDZ,mpi_size,ierr)
73	call MPI_COMM_RANK(COMM_LMDZ,mpi_rank,ierr)
74	#endif
75	ELSE
76	mpi_size=1
77	mpi_rank=0
78	ENDIF
79
80
81	! Open text output file with mpi_rank in suffix of file name
82	IF (lunout /= 5 .and. lunout /= 6) THEN
83	WRITE(num,'(I4.4)') mpi_rank
84	filename='lmdz.out_'//num
85	IF (mpi_rank .NE. 0) THEN
86	OPEN(UNIT=lunout,FILE=TRIM(filename),ACTION='write', &
87	STATUS='unknown',FORM='formatted',IOSTAT=ierr)
88	ENDIF
89	ENDIF
90
91
92	allocate(jj_begin_para(0:mpi_size-1))
93	allocate(jj_end_para(0:mpi_size-1))
94	allocate(jj_nb_para(0:mpi_size-1))
95
96	do i=0,mpi_size-1
97	jj_nb_para(i)=(jjm+1)/mpi_size
98	if ( i < MOD((jjm+1),mpi_size) ) jj_nb_para(i)=jj_nb_para(i)+1
99
100	if (jj_nb_para(i) <= 2 ) then
101
102	write(lunout,*)"Arret : le nombre de bande de lattitude par process est trop faible (<2)."
103	write(lunout,*)" ---> diminuez le nombre de CPU ou augmentez la taille en lattitude"
104
105	#ifdef CPP_MPI
106	IF (using_mpi) call MPI_ABORT(COMM_LMDZ,-1, ierr)
107	#endif
108	endif
109
110	enddo
111
112	! jj_nb_para(0)=11
113	! jj_nb_para(1)=25
114	! jj_nb_para(2)=25
115	! jj_nb_para(3)=12
116
117	j=1
118
119	do i=0,mpi_size-1
120
121	jj_begin_para(i)=j
122	jj_end_para(i)=j+jj_Nb_para(i)-1
123	j=j+jj_Nb_para(i)
124
125	enddo
126
127	jj_begin = jj_begin_para(mpi_rank)
128	jj_end = jj_end_para(mpi_rank)
129	jj_nb = jj_nb_para(mpi_rank)
130
131	ij_begin=(jj_begin-1)*iip1+1
132	ij_end=jj_end*iip1
133
134	if (mpi_rank.eq.0) then
135	pole_nord=.TRUE.
136	else
137	pole_nord=.FALSE.
138	endif
139
140	if (mpi_rank.eq.mpi_size-1) then
141	pole_sud=.TRUE.
142	else
143	pole_sud=.FALSE.
144	endif
145
146	write(lunout,*)"init_parallel: jj_begin",jj_begin
147	write(lunout,*)"init_parallel: jj_end",jj_end
148	write(lunout,*)"init_parallel: ij_begin",ij_begin
149	write(lunout,*)"init_parallel: ij_end",ij_end
150
151	!$OMP PARALLEL
152
153	#ifdef CPP_OMP
154	!$OMP MASTER
155	omp_size=OMP_GET_NUM_THREADS()
156	!$OMP END MASTER
157	omp_rank=OMP_GET_THREAD_NUM()
158	#else
159	omp_size=1
160	omp_rank=0
161	#endif
162	!$OMP END PARALLEL
163
164	end subroutine init_parallel
165
166
167	subroutine SetDistrib(jj_Nb_New)
168	implicit none
169
170	#include "dimensions.h"
171	#include "paramet.h"
172
173	INTEGER,dimension(0:MPI_Size-1) :: jj_Nb_New
174	INTEGER :: i
175
176	jj_Nb_Para=jj_Nb_New
177
178	jj_begin_para(0)=1
179	jj_end_para(0)=jj_Nb_Para(0)
180
181	do i=1,mpi_size-1
182
183	jj_begin_para(i)=jj_end_para(i-1)+1
184	jj_end_para(i)=jj_begin_para(i)+jj_Nb_para(i)-1
185
186	enddo
187
188	jj_begin = jj_begin_para(mpi_rank)
189	jj_end = jj_end_para(mpi_rank)
190	jj_nb = jj_nb_para(mpi_rank)
191
192	ij_begin=(jj_begin-1)*iip1+1
193	ij_end=jj_end*iip1
194
195	end subroutine SetDistrib
196
197
198
199
200	subroutine Finalize_parallel
201	#ifdef CPP_COUPLE
202	use mod_prism_proto
203	! Ehouarn: surface_data module is in 'phylmd' ...
204	use surface_data, only : type_ocean
205	implicit none
206	#else
207	implicit none
208	! without the surface_data module, we declare (and set) a dummy 'type_ocean'
209	character(len=6),parameter :: type_ocean="dummy"
210	#endif
211	! #endif of #ifdef CPP_EARTH
212
213	include "dimensions.h"
214	include "paramet.h"
215	#ifdef CPP_MPI
216	include 'mpif.h'
217	#endif
218
219	integer :: ierr
220	integer :: i
221
222	if (allocated(jj_begin_para)) deallocate(jj_begin_para)
223	if (allocated(jj_end_para)) deallocate(jj_end_para)
224	if (allocated(jj_nb_para)) deallocate(jj_nb_para)
225
226	if (type_ocean == 'couple') then
227	#ifdef CPP_COUPLE
228	call prism_terminate_proto(ierr)
229	IF (ierr .ne. PRISM_Ok) THEN
230	call abort_gcm('Finalize_parallel',' Probleme dans prism_terminate_proto ',1)
231	endif
232	#endif
233	else
234	#ifdef CPP_MPI
235	IF (using_mpi) call MPI_FINALIZE(ierr)
236	#endif
237	end if
238
239	end subroutine Finalize_parallel
240
241	subroutine Pack_Data(Field,ij,ll,row,Buffer)
242	implicit none
243
244	#include "dimensions.h"
245	#include "paramet.h"
246
247	integer, intent(in) :: ij,ll,row
248	real,dimension(ij,ll),intent(in) ::Field
249	real,dimension(lliip1row), intent(out) :: Buffer
250
251	integer :: Pos
252	integer :: i,l
253
254	Pos=0
255	do l=1,ll
256	do i=1,row*iip1
257	Pos=Pos+1
258	Buffer(Pos)=Field(i,l)
259	enddo
260	enddo
261
262	end subroutine Pack_data
263
264	subroutine Unpack_Data(Field,ij,ll,row,Buffer)
265	implicit none
266
267	#include "dimensions.h"
268	#include "paramet.h"
269
270	integer, intent(in) :: ij,ll,row
271	real,dimension(ij,ll),intent(out) ::Field
272	real,dimension(lliip1row), intent(in) :: Buffer
273
274	integer :: Pos
275	integer :: i,l
276
277	Pos=0
278
279	do l=1,ll
280	do i=1,row*iip1
281	Pos=Pos+1
282	Field(i,l)=Buffer(Pos)
283	enddo
284	enddo
285
286	end subroutine UnPack_data
287
288
289	SUBROUTINE barrier
290	IMPLICIT NONE
291	#ifdef CPP_MPI
292	INCLUDE 'mpif.h'
293	#endif
294	INTEGER :: ierr
295
296	!$OMP CRITICAL (MPI)
297	#ifdef CPP_MPI
298	IF (using_mpi) CALL MPI_Barrier(COMM_LMDZ,ierr)
299	#endif
300	!$OMP END CRITICAL (MPI)
301
302	END SUBROUTINE barrier
303
304
305	subroutine exchange_hallo(Field,ij,ll,up,down)
306	USE Vampir
307	implicit none
308	#include "dimensions.h"
309	#include "paramet.h"
310	#ifdef CPP_MPI
311	include 'mpif.h'
312	#endif
313	INTEGER :: ij,ll
314	REAL, dimension(ij,ll) :: Field
315	INTEGER :: up,down
316
317	INTEGER :: ierr
318	LOGICAL :: SendUp,SendDown
319	LOGICAL :: RecvUp,RecvDown
320	INTEGER, DIMENSION(4) :: Request
321	#ifdef CPP_MPI
322	INTEGER, DIMENSION(MPI_STATUS_SIZE,4) :: Status
323	#else
324	INTEGER, DIMENSION(1,4) :: Status
325	#endif
326	INTEGER :: NbRequest
327	REAL, dimension(:),allocatable :: Buffer_Send_up,Buffer_Send_down
328	REAL, dimension(:),allocatable :: Buffer_Recv_up,Buffer_Recv_down
329	INTEGER :: Buffer_size
330
331	IF (using_mpi) THEN
332
333	CALL barrier
334
335	call VTb(VThallo)
336
337	SendUp=.TRUE.
338	SendDown=.TRUE.
339	RecvUp=.TRUE.
340	RecvDown=.TRUE.
341
342	IF (pole_nord) THEN
343	SendUp=.FALSE.
344	RecvUp=.FALSE.
345	ENDIF
346
347	IF (pole_sud) THEN
348	SendDown=.FALSE.
349	RecvDown=.FALSE.
350	ENDIF
351
352	if (up.eq.0) then
353	SendDown=.FALSE.
354	RecvUp=.FALSE.
355	endif
356
357	if (down.eq.0) then
358	SendUp=.FALSE.
359	RecvDown=.FALSE.
360	endif
361
362	NbRequest=0
363
364	IF (SendUp) THEN
365	NbRequest=NbRequest+1
366	buffer_size=downiip1ll
367	allocate(Buffer_Send_up(Buffer_size))
368	call PACK_Data(Field(ij_begin,1),ij,ll,down,Buffer_Send_up)
369	!$OMP CRITICAL (MPI)
370	#ifdef CPP_MPI
371	call MPI_ISSEND(Buffer_send_up,Buffer_Size,MPI_REAL8,MPI_Rank-1,1, &
372	COMM_LMDZ,Request(NbRequest),ierr)
373	#endif
374	!$OMP END CRITICAL (MPI)
375	ENDIF
376
377	IF (SendDown) THEN
378	NbRequest=NbRequest+1
379
380	buffer_size=upiip1ll
381	allocate(Buffer_Send_down(Buffer_size))
382	call PACK_Data(Field(ij_end+1-up*iip1,1),ij,ll,up,Buffer_send_down)
383
384	!$OMP CRITICAL (MPI)
385	#ifdef CPP_MPI
386	call MPI_ISSEND(Buffer_send_down,Buffer_Size,MPI_REAL8,MPI_Rank+1,1, &
387	COMM_LMDZ,Request(NbRequest),ierr)
388	#endif
389	!$OMP END CRITICAL (MPI)
390	ENDIF
391
392
393	IF (RecvUp) THEN
394	NbRequest=NbRequest+1
395	buffer_size=upiip1ll
396	allocate(Buffer_recv_up(Buffer_size))
397
398	!$OMP CRITICAL (MPI)
399	#ifdef CPP_MPI
400	call MPI_IRECV(Buffer_recv_up,Buffer_size,MPI_REAL8,MPI_Rank-1,1, &
401	COMM_LMDZ,Request(NbRequest),ierr)
402	#endif
403	!$OMP END CRITICAL (MPI)
404
405
406	ENDIF
407
408	IF (RecvDown) THEN
409	NbRequest=NbRequest+1
410	buffer_size=downiip1ll
411	allocate(Buffer_recv_down(Buffer_size))
412
413	!$OMP CRITICAL (MPI)
414	#ifdef CPP_MPI
415	call MPI_IRECV(Buffer_recv_down,Buffer_size,MPI_REAL8,MPI_Rank+1,1, &
416	COMM_LMDZ,Request(NbRequest),ierr)
417	#endif
418	!$OMP END CRITICAL (MPI)
419
420	ENDIF
421
422	#ifdef CPP_MPI
423	if (NbRequest > 0) call MPI_WAITALL(NbRequest,Request,Status,ierr)
424	#endif
425	IF (RecvUp) call Unpack_Data(Field(ij_begin-up*iip1,1),ij,ll,up,Buffer_Recv_up)
426	IF (RecvDown) call Unpack_Data(Field(ij_end+1,1),ij,ll,down,Buffer_Recv_down)
427
428	call VTe(VThallo)
429	call barrier
430
431	ENDIF ! using_mpi
432
433	RETURN
434
435	end subroutine exchange_Hallo
436
437
438	subroutine Gather_Field(Field,ij,ll,rank)
439	implicit none
440	#include "dimensions.h"
441	#include "paramet.h"
442	#include "iniprint.h"
443	#ifdef CPP_MPI
444	include 'mpif.h'
445	#endif
446	INTEGER :: ij,ll,rank
447	REAL, dimension(ij,ll) :: Field
448	REAL, dimension(:),allocatable :: Buffer_send
449	REAL, dimension(:),allocatable :: Buffer_Recv
450	INTEGER, dimension(0:MPI_Size-1) :: Recv_count, displ
451	INTEGER :: ierr
452	INTEGER ::i
453
454	IF (using_mpi) THEN
455
456	if (ij==ip1jmp1) then
457	allocate(Buffer_send(iip1ll(jj_end-jj_begin+1)))
458	call Pack_Data(Field(ij_begin,1),ij,ll,jj_end-jj_begin+1,Buffer_send)
459	else if (ij==ip1jm) then
460	allocate(Buffer_send(iip1ll(min(jj_end,jjm)-jj_begin+1)))
461	call Pack_Data(Field(ij_begin,1),ij,ll,min(jj_end,jjm)-jj_begin+1,Buffer_send)
462	else
463	write(lunout,*)ij
464	stop 'erreur dans Gather_Field'
465	endif
466
467	if (MPI_Rank==rank) then
468	allocate(Buffer_Recv(ij*ll))
469
470	!CDIR NOVECTOR
471	do i=0,MPI_Size-1
472
473	if (ij==ip1jmp1) then
474	Recv_count(i)=(jj_end_para(i)-jj_begin_para(i)+1)lliip1
475	else if (ij==ip1jm) then
476	Recv_count(i)=(min(jj_end_para(i),jjm)-jj_begin_para(i)+1)lliip1
477	else
478	stop 'erreur dans Gather_Field'
479	endif
480
481	if (i==0) then
482	displ(i)=0
483	else
484	displ(i)=displ(i-1)+Recv_count(i-1)
485	endif
486
487	enddo
488
489	else
490	! Ehouarn: When in debug mode, ifort complains (for call MPI_GATHERV
491	! below) about Buffer_Recv() being not allocated.
492	! So make a dummy allocation.
493	allocate(Buffer_Recv(1))
494	endif ! of if (MPI_Rank==rank)
495
496	!$OMP CRITICAL (MPI)
497	#ifdef CPP_MPI
498	call MPI_GATHERV(Buffer_send,(min(ij_end,ij)-ij_begin+1)*ll,MPI_REAL8, &
499	Buffer_Recv,Recv_count,displ,MPI_REAL8,rank,COMM_LMDZ,ierr)
500	#endif
501	!$OMP END CRITICAL (MPI)
502
503	if (MPI_Rank==rank) then
504
505	if (ij==ip1jmp1) then
506	do i=0,MPI_Size-1
507	call Unpack_Data(Field((jj_begin_para(i)-1)*iip1+1,1),ij,ll, &
508	jj_end_para(i)-jj_begin_para(i)+1,Buffer_Recv(displ(i)+1))
509	enddo
510	else if (ij==ip1jm) then
511	do i=0,MPI_Size-1
512	call Unpack_Data(Field((jj_begin_para(i)-1)*iip1+1,1),ij,ll, &
513	min(jj_end_para(i),jjm)-jj_begin_para(i)+1,Buffer_Recv(displ(i)+1))
514	enddo
515	endif
516	endif
517	ENDIF ! using_mpi
518
519	end subroutine Gather_Field
520
521
522	subroutine AllGather_Field(Field,ij,ll)
523	implicit none
524	#include "dimensions.h"
525	#include "paramet.h"
526	#ifdef CPP_MPI
527	include 'mpif.h'
528	#endif
529	INTEGER :: ij,ll
530	REAL, dimension(ij,ll) :: Field
531	INTEGER :: ierr
532
533	IF (using_mpi) THEN
534	call Gather_Field(Field,ij,ll,0)
535	!$OMP CRITICAL (MPI)
536	#ifdef CPP_MPI
537	call MPI_BCAST(Field,ij*ll,MPI_REAL8,0,COMM_LMDZ,ierr)
538	#endif
539	!$OMP END CRITICAL (MPI)
540	ENDIF
541
542	end subroutine AllGather_Field
543
544	subroutine Broadcast_Field(Field,ij,ll,rank)
545	implicit none
546	#include "dimensions.h"
547	#include "paramet.h"
548	#ifdef CPP_MPI
549	include 'mpif.h'
550	#endif
551	INTEGER :: ij,ll
552	REAL, dimension(ij,ll) :: Field
553	INTEGER :: rank
554	INTEGER :: ierr
555
556	IF (using_mpi) THEN
557
558	!$OMP CRITICAL (MPI)
559	#ifdef CPP_MPI
560	call MPI_BCAST(Field,ij*ll,MPI_REAL8,rank,COMM_LMDZ,ierr)
561	#endif
562	!$OMP END CRITICAL (MPI)
563
564	ENDIF
565	end subroutine Broadcast_Field
566
567
568	! Subroutine verif_hallo(Field,ij,ll,up,down)
569	! implicit none
570	!#include "dimensions.h"
571	!#include "paramet.h"
572	! include 'mpif.h'
573	!
574	! INTEGER :: ij,ll
575	! REAL, dimension(ij,ll) :: Field
576	! INTEGER :: up,down
577	!
578	! REAL,dimension(ij,ll): NewField
579	!
580	! NewField=0
581	!
582	! ijb=ij_begin
583	! ije=ij_end
584	! if (pole_nord)
585	! NewField(ij_be
586
587	end MODULE parallel_lmdz

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