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parallel.F90 @ 844

Last change on this file since 844 was 811, checked in by lsce, 17 years ago
ACo + YM : correction bug
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 10.8 KB

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

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