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parallel.F90 @ 1798

Last change on this file since 1798 was 734, checked in by Laurent Fairhead, 18 years ago
Nettoyage version parallele YM/LF
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 11.2 KB

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1	module parallel
2
3	integer, save :: mpi_size
4	integer, save :: mpi_rank
5	integer, save :: COMM_LMDZ
6	integer, save :: jj_begin
7	integer, save :: jj_end
8	integer, save :: jj_nb
9	integer, save :: ij_begin
10	integer, save :: ij_end
11	logical, save :: pole_nord
12	logical, save :: pole_sud
13
14	integer, allocatable, save, dimension(:) :: jj_begin_para
15	integer, allocatable, save, dimension(:) :: jj_end_para
16	integer, allocatable, save, dimension(:) :: jj_nb_para
17	integer, save :: OMP_CHUNK
18
19	contains
20
21	subroutine init_parallel
22	USE vampir
23	#ifdef CPP_COUPLE
24	#ifdef CPP_PSMILE
25	USE mod_prism_proto
26	#endif
27	#endif
28	implicit none
29
30	integer :: ierr
31	integer :: i,j
32	integer :: type_size
33	integer, dimension(3) :: blocklen,type
34	integer :: comp_id
35
36
37	include 'mpif.h'
38	#include "dimensions90.h"
39	#include "paramet90.h"
40
41	#ifdef CPP_COUPLE
42	#ifdef CPP_PSMILE
43	call prism_init_comp_proto (comp_id, 'lmdz.x', ierr)
44	call prism_get_localcomm_proto(COMM_LMDZ,ierr)
45	#endif
46	#else
47	call MPI_INIT(ierr)
48	COMM_LMDZ=MPI_COMM_WORLD
49	#endif
50	call InitVampir
51	call MPI_COMM_SIZE(COMM_LMDZ,mpi_size,ierr)
52	call MPI_COMM_RANK(COMM_LMDZ,mpi_rank,ierr)
53
54
55	allocate(jj_begin_para(0:mpi_size-1))
56	allocate(jj_end_para(0:mpi_size-1))
57	allocate(jj_nb_para(0:mpi_size-1))
58
59	do i=0,mpi_size-1
60	jj_nb_para(i)=(jjm+1)/mpi_size
61	if ( i < MOD((jjm+1),mpi_size) ) jj_nb_para(i)=jj_nb_para(i)+1
62
63	if (jj_nb_para(i) <= 2 ) then
64
65	print *,"Arret : le nombre de bande de lattitude par process est trop faible (<2)."
66	print *," ---> diminuez le nombre de CPU ou augmentez la taille en lattitude"
67
68	call MPI_ABORT(COMM_LMDZ,-1, ierr)
69
70	endif
71
72	enddo
73
74	! jj_nb_para(0)=11
75	! jj_nb_para(1)=25
76	! jj_nb_para(2)=25
77	! jj_nb_para(3)=12
78
79	j=1
80
81	do i=0,mpi_size-1
82
83	jj_begin_para(i)=j
84	jj_end_para(i)=j+jj_Nb_para(i)-1
85	j=j+jj_Nb_para(i)
86
87	enddo
88
89	jj_begin = jj_begin_para(mpi_rank)
90	jj_end = jj_end_para(mpi_rank)
91	jj_nb = jj_nb_para(mpi_rank)
92
93	ij_begin=(jj_begin-1)*iip1+1
94	ij_end=jj_end*iip1
95
96	if (mpi_rank.eq.0) then
97	pole_nord=.TRUE.
98	else
99	pole_nord=.FALSE.
100	endif
101
102	if (mpi_rank.eq.mpi_size-1) then
103	pole_sud=.TRUE.
104	else
105	pole_sud=.FALSE.
106	endif
107
108	print *,"jj_begin",jj_begin
109	print *,"jj_end",jj_end
110	print *,"ij_begin",ij_begin
111	print *,"ij_end",ij_end
112
113
114	end subroutine init_parallel
115
116
117	subroutine SetDistrib(jj_Nb_New)
118	implicit none
119
120	#include "dimensions90.h"
121	#include "paramet90.h"
122
123	INTEGER,dimension(0:MPI_Size-1) :: jj_Nb_New
124	INTEGER :: i
125
126	jj_Nb_Para=jj_Nb_New
127
128	jj_begin_para(0)=1
129	jj_end_para(0)=jj_Nb_Para(0)
130
131	do i=1,mpi_size-1
132
133	jj_begin_para(i)=jj_end_para(i-1)+1
134	jj_end_para(i)=jj_begin_para(i)+jj_Nb_para(i)-1
135
136	enddo
137
138	jj_begin = jj_begin_para(mpi_rank)
139	jj_end = jj_end_para(mpi_rank)
140	jj_nb = jj_nb_para(mpi_rank)
141
142	ij_begin=(jj_begin-1)*iip1+1
143	ij_end=jj_end*iip1
144
145	end subroutine SetDistrib
146
147
148
149
150	subroutine Finalize_parallel
151	#ifdef CPP_COUPLE
152	#ifdef CPP_PSMILE
153	use mod_prism_proto
154	#endif
155	#endif
156	implicit none
157
158	#include "dimensions90.h"
159	#include "paramet90.h"
160	integer :: ierr
161	integer :: i
162	include 'mpif.h'
163
164	deallocate(jj_begin_para)
165	deallocate(jj_end_para)
166	deallocate(jj_nb_para)
167
168	#ifdef CPP_COUPLE
169	#ifdef CPP_PSMILE
170	call prism_terminate_proto(ierr)
171	IF (ierr .ne. PRISM_Ok) THEN
172	call abort_gcm('Finalize_parallel',' Probleme dans prism_terminate_proto ',1)
173	endif
174	#endif
175	#else
176	call MPI_FINALIZE(ierr)
177	#endif
178
179	end subroutine Finalize_parallel
180
181	subroutine Pack_Data(Field,ij,ll,row,Buffer)
182	implicit none
183
184	#include "dimensions90.h"
185	#include "paramet90.h"
186
187	integer, intent(in) :: ij,ll,row
188	real,dimension(ij,ll),intent(in) ::Field
189	real,dimension(lliip1row), intent(out) :: Buffer
190
191	integer :: Pos
192	integer :: i,l
193
194	Pos=0
195	do l=1,ll
196	do i=1,row*iip1
197	Pos=Pos+1
198	Buffer(Pos)=Field(i,l)
199	enddo
200	enddo
201
202	end subroutine Pack_data
203
204	subroutine Unpack_Data(Field,ij,ll,row,Buffer)
205	implicit none
206
207	#include "dimensions90.h"
208	#include "paramet90.h"
209
210	integer, intent(in) :: ij,ll,row
211	real,dimension(ij,ll),intent(out) ::Field
212	real,dimension(lliip1row), intent(in) :: Buffer
213
214	integer :: Pos
215	integer :: i,l
216
217	Pos=0
218
219	do l=1,ll
220	do i=1,row*iip1
221	Pos=Pos+1
222	Field(i,l)=Buffer(Pos)
223	enddo
224	enddo
225
226	end subroutine UnPack_data
227
228	subroutine exchange_hallo(Field,ij,ll,up,down)
229	USE Vampir
230	implicit none
231	#include "dimensions90.h"
232	#include "paramet90.h"
233	include 'mpif.h'
234
235	INTEGER :: ij,ll
236	REAL, dimension(ij,ll) :: Field
237	INTEGER :: up,down
238
239	INTEGER :: ierr
240	LOGICAL :: SendUp,SendDown
241	LOGICAL :: RecvUp,RecvDown
242	INTEGER, DIMENSION(4) :: Request
243	INTEGER, DIMENSION(MPI_STATUS_SIZE,4) :: Status
244	INTEGER :: NbRequest
245	REAL, dimension(:),allocatable :: Buffer_Send_up,Buffer_Send_down
246	REAL, dimension(:),allocatable :: Buffer_Recv_up,Buffer_Recv_down
247	INTEGER :: Buffer_size
248
249	call MPI_Barrier(COMM_LMDZ,ierr)
250	call VTb(VThallo)
251
252	SendUp=.TRUE.
253	SendDown=.TRUE.
254	RecvUp=.TRUE.
255	RecvDown=.TRUE.
256
257	IF (pole_nord) THEN
258	SendUp=.FALSE.
259	RecvUp=.FALSE.
260	ENDIF
261
262	IF (pole_sud) THEN
263	SendDown=.FALSE.
264	RecvDown=.FALSE.
265	ENDIF
266
267	if (up.eq.0) then
268	SendDown=.FALSE.
269	RecvUp=.FALSE.
270	endif
271
272	if (down.eq.0) then
273	SendUp=.FALSE.
274	RecvDown=.FALSE.
275	endif
276
277	NbRequest=0
278
279	IF (SendUp) THEN
280	NbRequest=NbRequest+1
281	buffer_size=downiip1ll
282	allocate(Buffer_Send_up(Buffer_size))
283	call PACK_Data(Field(ij_begin,1),ij,ll,down,Buffer_Send_up)
284	call MPI_ISSEND(Buffer_send_up,Buffer_Size,MPI_REAL8,MPI_Rank-1,1, &
285	COMM_LMDZ,Request(NbRequest),ierr)
286	ENDIF
287
288	IF (SendDown) THEN
289	NbRequest=NbRequest+1
290
291	buffer_size=upiip1ll
292	allocate(Buffer_Send_down(Buffer_size))
293	call PACK_Data(Field(ij_end+1-up*iip1,1),ij,ll,up,Buffer_send_down)
294
295	call MPI_ISSEND(Buffer_send_down,Buffer_Size,MPI_REAL8,MPI_Rank+1,1, &
296	COMM_LMDZ,Request(NbRequest),ierr)
297	ENDIF
298
299
300	IF (RecvUp) THEN
301	NbRequest=NbRequest+1
302	buffer_size=upiip1ll
303	allocate(Buffer_recv_up(Buffer_size))
304
305	call MPI_IRECV(Buffer_recv_up,Buffer_size,MPI_REAL8,MPI_Rank-1,1, &
306	COMM_LMDZ,Request(NbRequest),ierr)
307
308
309	ENDIF
310
311	IF (RecvDown) THEN
312	NbRequest=NbRequest+1
313	buffer_size=downiip1ll
314	allocate(Buffer_recv_down(Buffer_size))
315
316	call MPI_IRECV(Buffer_recv_down,Buffer_size,MPI_REAL8,MPI_Rank+1,1, &
317	COMM_LMDZ,Request(NbRequest),ierr)
318
319
320	ENDIF
321
322	if (NbRequest > 0) call MPI_WAITALL(NbRequest,Request,Status,ierr)
323	IF (RecvUp) call Unpack_Data(Field(ij_begin-up*iip1,1),ij,ll,up,Buffer_Recv_up)
324	IF (RecvDown) call Unpack_Data(Field(ij_end+1,1),ij,ll,down,Buffer_Recv_down)
325
326	call VTe(VThallo)
327	call MPI_Barrier(COMM_LMDZ,ierr)
328	RETURN
329
330	end subroutine exchange_Hallo
331
332
333	subroutine Gather_Field(Field,ij,ll,rank)
334	implicit none
335	#include "dimensions90.h"
336	#include "paramet90.h"
337	include 'mpif.h'
338
339	INTEGER :: ij,ll,rank
340	REAL, dimension(ij,ll) :: Field
341	REAL, dimension(:),allocatable :: Buffer_send
342	REAL, dimension(:),allocatable :: Buffer_Recv
343	INTEGER, dimension(0:MPI_Size-1) :: Recv_count, displ
344	INTEGER :: ierr
345	INTEGER ::i
346
347	if (ij==ip1jmp1) then
348	allocate(Buffer_send(iip1ll(jj_end-jj_begin+1)))
349	call Pack_Data(Field(ij_begin,1),ij,ll,jj_end-jj_begin+1,Buffer_send)
350	else if (ij==ip1jm) then
351	allocate(Buffer_send(iip1ll(min(jj_end,jjm)-jj_begin+1)))
352	call Pack_Data(Field(ij_begin,1),ij,ll,min(jj_end,jjm)-jj_begin+1,Buffer_send)
353	else
354	print *,ij
355	stop 'erreur dans Gather_Field'
356	endif
357
358	if (MPI_Rank==rank) then
359	allocate(Buffer_Recv(ij*ll))
360	do i=0,MPI_Size-1
361
362	if (ij==ip1jmp1) then
363	Recv_count(i)=(jj_end_para(i)-jj_begin_para(i)+1)lliip1
364	else if (ij==ip1jm) then
365	Recv_count(i)=(min(jj_end_para(i),jjm)-jj_begin_para(i)+1)lliip1
366	else
367	stop 'erreur dans Gather_Field'
368	endif
369
370	if (i==0) then
371	displ(i)=0
372	else
373	displ(i)=displ(i-1)+Recv_count(i-1)
374	endif
375
376	enddo
377
378	endif
379
380	call MPI_GATHERV(Buffer_send,(min(ij_end,ij)-ij_begin+1)*ll,MPI_REAL8, &
381	Buffer_Recv,Recv_count,displ,MPI_REAL8,rank,COMM_LMDZ,ierr)
382
383	if (MPI_Rank==rank) then
384
385	if (ij==ip1jmp1) then
386	do i=0,MPI_Size-1
387	call Unpack_Data(Field((jj_begin_para(i)-1)*iip1+1,1),ij,ll, &
388	jj_end_para(i)-jj_begin_para(i)+1,Buffer_Recv(displ(i)+1))
389	enddo
390	else if (ij==ip1jm) then
391	do i=0,MPI_Size-1
392	call Unpack_Data(Field((jj_begin_para(i)-1)*iip1+1,1),ij,ll, &
393	min(jj_end_para(i),jjm)-jj_begin_para(i)+1,Buffer_Recv(displ(i)+1))
394	enddo
395	endif
396
397	endif
398
399	end subroutine Gather_Field
400
401	subroutine AllGather_Field(Field,ij,ll)
402	implicit none
403	#include "dimensions90.h"
404	#include "paramet90.h"
405	include 'mpif.h'
406
407	INTEGER :: ij,ll
408	REAL, dimension(ij,ll) :: Field
409	INTEGER :: ierr
410
411	call Gather_Field(Field,ij,ll,0)
412	call MPI_BCAST(Field,ij*ll,MPI_REAL8,0,COMM_LMDZ,ierr)
413
414	end subroutine AllGather_Field
415
416	subroutine Broadcast_Field(Field,ij,ll,rank)
417	implicit none
418	#include "dimensions90.h"
419	#include "paramet90.h"
420	include 'mpif.h'
421
422	INTEGER :: ij,ll
423	REAL, dimension(ij,ll) :: Field
424	INTEGER :: rank
425	INTEGER :: ierr
426
427	call MPI_BCAST(Field,ij*ll,MPI_REAL8,rank,COMM_LMDZ,ierr)
428
429	end subroutine Broadcast_Field
430
431
432	/*
433	Subroutine verif_hallo(Field,ij,ll,up,down)
434	implicit none
435	#include "dimensions90.h"
436	#include "paramet90.h"
437	include 'mpif.h'
438
439	INTEGER :: ij,ll
440	REAL, dimension(ij,ll) :: Field
441	INTEGER :: up,down
442
443	REAL,dimension(ij,ll): NewField
444
445	NewField=0
446
447	ijb=ij_begin
448	ije=ij_end
449	if (pole_nord)
450	NewField(ij_be
451	*/
452	end module parallel

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