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parallel.F90 @ 4999

Last change on this file since 4999 was 1487, checked in by jghattas, 14 years ago
Corrected type error. Error has been in the code since commit 1482.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 13.7 KB

Rev	Line
[1279]	1	!
	2	! $Id: parallel.F90 1487 2011-02-11 15:07:54Z lebasn $
	3	!
[630]	4	module parallel
[806]	5	USE mod_const_mpi
[1000]	6
[1482]	7	LOGICAL,SAVE :: using_mpi=.TRUE.
[1000]	8	LOGICAL,SAVE :: using_omp
	9
[630]	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
[764]	23	integer, save :: OMP_CHUNK
[985]	24	integer, save :: omp_rank
	25	integer, save :: omp_size
	26	!$OMP THREADPRIVATE(omp_rank)
	27
[630]	28	contains
	29
	30	subroutine init_parallel
	31	USE vampir
	32	implicit none
[1000]	33	#ifdef CPP_MPI
	34	include 'mpif.h'
	35	#endif
	36	#include "dimensions.h"
	37	#include "paramet.h"
[1279]	38	#include "iniprint.h"
	39
[630]	40	integer :: ierr
	41	integer :: i,j
	42	integer :: type_size
	43	integer, dimension(3) :: blocklen,type
[985]	44	integer :: comp_id
[1000]	45
	46	#ifdef CPP_OMP
[985]	47	INTEGER :: OMP_GET_NUM_THREADS
	48	EXTERNAL OMP_GET_NUM_THREADS
	49	INTEGER :: OMP_GET_THREAD_NUM
	50	EXTERNAL OMP_GET_THREAD_NUM
	51	#endif
[764]	52
[1000]	53	#ifdef CPP_MPI
	54	using_mpi=.TRUE.
	55	#else
	56	using_mpi=.FALSE.
	57	#endif
	58
[1146]	59
	60	#ifdef CPP_OMP
	61	using_OMP=.TRUE.
	62	#else
	63	using_OMP=.FALSE.
	64	#endif
	65
[630]	66	call InitVampir
[1000]	67
	68	IF (using_mpi) THEN
	69	#ifdef CPP_MPI
	70	call MPI_COMM_SIZE(COMM_LMDZ,mpi_size,ierr)
	71	call MPI_COMM_RANK(COMM_LMDZ,mpi_rank,ierr)
	72	#endif
	73	ELSE
	74	mpi_size=1
	75	mpi_rank=0
	76	ENDIF
[630]	77
	78
	79	allocate(jj_begin_para(0:mpi_size-1))
	80	allocate(jj_end_para(0:mpi_size-1))
	81	allocate(jj_nb_para(0:mpi_size-1))
	82
	83	do i=0,mpi_size-1
	84	jj_nb_para(i)=(jjm+1)/mpi_size
	85	if ( i < MOD((jjm+1),mpi_size) ) jj_nb_para(i)=jj_nb_para(i)+1
	86
	87	if (jj_nb_para(i) <= 2 ) then
	88
[1279]	89	write(lunout,*)"Arret : le nombre de bande de lattitude par process est trop faible (<2)."
	90	write(lunout,*)" ---> diminuez le nombre de CPU ou augmentez la taille en lattitude"
[630]	91
[1000]	92	#ifdef CPP_MPI
	93	IF (using_mpi) call MPI_ABORT(COMM_LMDZ,-1, ierr)
	94	#endif
[630]	95	endif
	96
	97	enddo
	98
	99	! jj_nb_para(0)=11
	100	! jj_nb_para(1)=25
	101	! jj_nb_para(2)=25
	102	! jj_nb_para(3)=12
	103
	104	j=1
	105
	106	do i=0,mpi_size-1
	107
	108	jj_begin_para(i)=j
	109	jj_end_para(i)=j+jj_Nb_para(i)-1
	110	j=j+jj_Nb_para(i)
	111
	112	enddo
	113
	114	jj_begin = jj_begin_para(mpi_rank)
	115	jj_end = jj_end_para(mpi_rank)
	116	jj_nb = jj_nb_para(mpi_rank)
	117
	118	ij_begin=(jj_begin-1)*iip1+1
	119	ij_end=jj_end*iip1
	120
	121	if (mpi_rank.eq.0) then
	122	pole_nord=.TRUE.
	123	else
	124	pole_nord=.FALSE.
	125	endif
	126
	127	if (mpi_rank.eq.mpi_size-1) then
	128	pole_sud=.TRUE.
	129	else
	130	pole_sud=.FALSE.
	131	endif
	132
[1279]	133	write(lunout,*)"init_parallel: jj_begin",jj_begin
	134	write(lunout,*)"init_parallel: jj_end",jj_end
	135	write(lunout,*)"init_parallel: ij_begin",ij_begin
	136	write(lunout,*)"init_parallel: ij_end",ij_end
[985]	137
	138	!$OMP PARALLEL
	139
[1000]	140	#ifdef CPP_OMP
[985]	141	!$OMP MASTER
	142	omp_size=OMP_GET_NUM_THREADS()
	143	!$OMP END MASTER
	144	omp_rank=OMP_GET_THREAD_NUM()
	145	#else
	146	omp_size=1
	147	omp_rank=0
	148	#endif
	149	!$OMP END PARALLEL
[630]	150
	151	end subroutine init_parallel
	152
	153
	154	subroutine SetDistrib(jj_Nb_New)
	155	implicit none
	156
[792]	157	#include "dimensions.h"
	158	#include "paramet.h"
[630]	159
	160	INTEGER,dimension(0:MPI_Size-1) :: jj_Nb_New
	161	INTEGER :: i
	162
	163	jj_Nb_Para=jj_Nb_New
	164
	165	jj_begin_para(0)=1
	166	jj_end_para(0)=jj_Nb_Para(0)
	167
	168	do i=1,mpi_size-1
	169
	170	jj_begin_para(i)=jj_end_para(i-1)+1
	171	jj_end_para(i)=jj_begin_para(i)+jj_Nb_para(i)-1
	172
	173	enddo
	174
	175	jj_begin = jj_begin_para(mpi_rank)
	176	jj_end = jj_end_para(mpi_rank)
	177	jj_nb = jj_nb_para(mpi_rank)
	178
	179	ij_begin=(jj_begin-1)*iip1+1
	180	ij_end=jj_end*iip1
	181
	182	end subroutine SetDistrib
	183
	184
	185
	186
	187	subroutine Finalize_parallel
[764]	188	#ifdef CPP_COUPLE
	189	use mod_prism_proto
	190	#endif
[1279]	191	#ifdef CPP_EARTH
	192	! Ehouarn: surface_data module is in 'phylmd' ...
[995]	193	use surface_data, only : type_ocean
[884]	194	implicit none
[1279]	195	#else
	196	implicit none
	197	! without the surface_data module, we declare (and set) a dummy 'type_ocean'
	198	character(len=6),parameter :: type_ocean="dummy"
	199	#endif
	200	! #endif of #ifdef CPP_EARTH
[630]	201
[884]	202	include "dimensions.h"
	203	include "paramet.h"
[1000]	204	#ifdef CPP_MPI
	205	include 'mpif.h'
	206	#endif
	207
[630]	208	integer :: ierr
	209	integer :: i
[764]	210
[1482]	211	if (allocated(jj_begin_para)) deallocate(jj_begin_para)
	212	if (allocated(jj_end_para)) deallocate(jj_end_para)
[1487]	213	if (allocated(jj_nb_para)) deallocate(jj_nb_para)
[1482]	214
[995]	215	if (type_ocean == 'couple') then
[764]	216	#ifdef CPP_COUPLE
[884]	217	call prism_terminate_proto(ierr)
	218	IF (ierr .ne. PRISM_Ok) THEN
	219	call abort_gcm('Finalize_parallel',' Probleme dans prism_terminate_proto ',1)
	220	endif
	221	#endif
	222	else
[1000]	223	#ifdef CPP_MPI
	224	IF (using_mpi) call MPI_FINALIZE(ierr)
	225	#endif
[884]	226	end if
[630]	227
	228	end subroutine Finalize_parallel
[764]	229
[630]	230	subroutine Pack_Data(Field,ij,ll,row,Buffer)
	231	implicit none
	232
[792]	233	#include "dimensions.h"
	234	#include "paramet.h"
[630]	235
	236	integer, intent(in) :: ij,ll,row
	237	real,dimension(ij,ll),intent(in) ::Field
	238	real,dimension(lliip1row), intent(out) :: Buffer
	239
	240	integer :: Pos
	241	integer :: i,l
	242
	243	Pos=0
	244	do l=1,ll
	245	do i=1,row*iip1
	246	Pos=Pos+1
	247	Buffer(Pos)=Field(i,l)
	248	enddo
	249	enddo
	250
	251	end subroutine Pack_data
	252
	253	subroutine Unpack_Data(Field,ij,ll,row,Buffer)
	254	implicit none
	255
[792]	256	#include "dimensions.h"
	257	#include "paramet.h"
[630]	258
	259	integer, intent(in) :: ij,ll,row
	260	real,dimension(ij,ll),intent(out) ::Field
	261	real,dimension(lliip1row), intent(in) :: Buffer
	262
	263	integer :: Pos
	264	integer :: i,l
	265
	266	Pos=0
	267
	268	do l=1,ll
	269	do i=1,row*iip1
	270	Pos=Pos+1
	271	Field(i,l)=Buffer(Pos)
	272	enddo
	273	enddo
	274
	275	end subroutine UnPack_data
[1000]	276
	277
	278	SUBROUTINE barrier
	279	IMPLICIT NONE
	280	#ifdef CPP_MPI
	281	INCLUDE 'mpif.h'
	282	#endif
	283	INTEGER :: ierr
	284
	285	!$OMP CRITICAL (MPI)
	286	#ifdef CPP_MPI
	287	IF (using_mpi) CALL MPI_Barrier(COMM_LMDZ,ierr)
	288	#endif
	289	!$OMP END CRITICAL (MPI)
	290
	291	END SUBROUTINE barrier
	292
[630]	293
	294	subroutine exchange_hallo(Field,ij,ll,up,down)
	295	USE Vampir
	296	implicit none
[792]	297	#include "dimensions.h"
	298	#include "paramet.h"
[1000]	299	#ifdef CPP_MPI
[630]	300	include 'mpif.h'
[1000]	301	#endif
[630]	302	INTEGER :: ij,ll
	303	REAL, dimension(ij,ll) :: Field
	304	INTEGER :: up,down
	305
	306	INTEGER :: ierr
	307	LOGICAL :: SendUp,SendDown
	308	LOGICAL :: RecvUp,RecvDown
	309	INTEGER, DIMENSION(4) :: Request
[1000]	310	#ifdef CPP_MPI
[630]	311	INTEGER, DIMENSION(MPI_STATUS_SIZE,4) :: Status
[1000]	312	#else
	313	INTEGER, DIMENSION(1,4) :: Status
	314	#endif
[630]	315	INTEGER :: NbRequest
	316	REAL, dimension(:),allocatable :: Buffer_Send_up,Buffer_Send_down
	317	REAL, dimension(:),allocatable :: Buffer_Recv_up,Buffer_Recv_down
	318	INTEGER :: Buffer_size
[985]	319
[1000]	320	IF (using_mpi) THEN
	321
	322	CALL barrier
[630]	323
[1000]	324	call VTb(VThallo)
	325
	326	SendUp=.TRUE.
	327	SendDown=.TRUE.
	328	RecvUp=.TRUE.
	329	RecvDown=.TRUE.
	330
	331	IF (pole_nord) THEN
	332	SendUp=.FALSE.
	333	RecvUp=.FALSE.
	334	ENDIF
	335
	336	IF (pole_sud) THEN
	337	SendDown=.FALSE.
	338	RecvDown=.FALSE.
	339	ENDIF
[630]	340
[1000]	341	if (up.eq.0) then
	342	SendDown=.FALSE.
	343	RecvUp=.FALSE.
	344	endif
[630]	345
[1000]	346	if (down.eq.0) then
	347	SendUp=.FALSE.
	348	RecvDown=.FALSE.
	349	endif
[630]	350
[1000]	351	NbRequest=0
[630]	352
[1000]	353	IF (SendUp) THEN
	354	NbRequest=NbRequest+1
	355	buffer_size=downiip1ll
	356	allocate(Buffer_Send_up(Buffer_size))
	357	call PACK_Data(Field(ij_begin,1),ij,ll,down,Buffer_Send_up)
[985]	358	!$OMP CRITICAL (MPI)
[1000]	359	#ifdef CPP_MPI
	360	call MPI_ISSEND(Buffer_send_up,Buffer_Size,MPI_REAL8,MPI_Rank-1,1, &
	361	COMM_LMDZ,Request(NbRequest),ierr)
	362	#endif
[985]	363	!$OMP END CRITICAL (MPI)
[1000]	364	ENDIF
[630]	365
[1000]	366	IF (SendDown) THEN
	367	NbRequest=NbRequest+1
	368
	369	buffer_size=upiip1ll
	370	allocate(Buffer_Send_down(Buffer_size))
	371	call PACK_Data(Field(ij_end+1-up*iip1,1),ij,ll,up,Buffer_send_down)
[630]	372
[985]	373	!$OMP CRITICAL (MPI)
[1000]	374	#ifdef CPP_MPI
	375	call MPI_ISSEND(Buffer_send_down,Buffer_Size,MPI_REAL8,MPI_Rank+1,1, &
	376	COMM_LMDZ,Request(NbRequest),ierr)
	377	#endif
[985]	378	!$OMP END CRITICAL (MPI)
[1000]	379	ENDIF
[630]	380
	381
[1000]	382	IF (RecvUp) THEN
	383	NbRequest=NbRequest+1
	384	buffer_size=upiip1ll
	385	allocate(Buffer_recv_up(Buffer_size))
[630]	386
[985]	387	!$OMP CRITICAL (MPI)
[1000]	388	#ifdef CPP_MPI
	389	call MPI_IRECV(Buffer_recv_up,Buffer_size,MPI_REAL8,MPI_Rank-1,1, &
	390	COMM_LMDZ,Request(NbRequest),ierr)
	391	#endif
[985]	392	!$OMP END CRITICAL (MPI)
[630]	393
	394
[1000]	395	ENDIF
[630]	396
[1000]	397	IF (RecvDown) THEN
	398	NbRequest=NbRequest+1
	399	buffer_size=downiip1ll
	400	allocate(Buffer_recv_down(Buffer_size))
[630]	401
[985]	402	!$OMP CRITICAL (MPI)
[1000]	403	#ifdef CPP_MPI
	404	call MPI_IRECV(Buffer_recv_down,Buffer_size,MPI_REAL8,MPI_Rank+1,1, &
	405	COMM_LMDZ,Request(NbRequest),ierr)
	406	#endif
[985]	407	!$OMP END CRITICAL (MPI)
[630]	408
[1000]	409	ENDIF
[630]	410
[1000]	411	#ifdef CPP_MPI
	412	if (NbRequest > 0) call MPI_WAITALL(NbRequest,Request,Status,ierr)
	413	#endif
	414	IF (RecvUp) call Unpack_Data(Field(ij_begin-up*iip1,1),ij,ll,up,Buffer_Recv_up)
	415	IF (RecvDown) call Unpack_Data(Field(ij_end+1,1),ij,ll,down,Buffer_Recv_down)
[630]	416
[1000]	417	call VTe(VThallo)
	418	call barrier
	419
	420	ENDIF ! using_mpi
	421
[630]	422	RETURN
	423
	424	end subroutine exchange_Hallo
	425
[985]	426
[630]	427	subroutine Gather_Field(Field,ij,ll,rank)
	428	implicit none
[792]	429	#include "dimensions.h"
[1279]	430	#include "paramet.h"
	431	#include "iniprint.h"
[1000]	432	#ifdef CPP_MPI
[630]	433	include 'mpif.h'
[1000]	434	#endif
[630]	435	INTEGER :: ij,ll,rank
	436	REAL, dimension(ij,ll) :: Field
	437	REAL, dimension(:),allocatable :: Buffer_send
	438	REAL, dimension(:),allocatable :: Buffer_Recv
	439	INTEGER, dimension(0:MPI_Size-1) :: Recv_count, displ
	440	INTEGER :: ierr
	441	INTEGER ::i
	442
[1000]	443	IF (using_mpi) THEN
[985]	444
[1000]	445	if (ij==ip1jmp1) then
	446	allocate(Buffer_send(iip1ll(jj_end-jj_begin+1)))
	447	call Pack_Data(Field(ij_begin,1),ij,ll,jj_end-jj_begin+1,Buffer_send)
	448	else if (ij==ip1jm) then
	449	allocate(Buffer_send(iip1ll(min(jj_end,jjm)-jj_begin+1)))
	450	call Pack_Data(Field(ij_begin,1),ij,ll,min(jj_end,jjm)-jj_begin+1,Buffer_send)
	451	else
[1279]	452	write(lunout,*)ij
[1000]	453	stop 'erreur dans Gather_Field'
	454	endif
	455
	456	if (MPI_Rank==rank) then
	457	allocate(Buffer_Recv(ij*ll))
	458
[985]	459	!CDIR NOVECTOR
[1000]	460	do i=0,MPI_Size-1
	461
	462	if (ij==ip1jmp1) then
	463	Recv_count(i)=(jj_end_para(i)-jj_begin_para(i)+1)lliip1
	464	else if (ij==ip1jm) then
	465	Recv_count(i)=(min(jj_end_para(i),jjm)-jj_begin_para(i)+1)lliip1
	466	else
	467	stop 'erreur dans Gather_Field'
	468	endif
	469
	470	if (i==0) then
	471	displ(i)=0
	472	else
	473	displ(i)=displ(i-1)+Recv_count(i-1)
	474	endif
	475
	476	enddo
[630]	477
[1000]	478	endif
[985]	479
	480	!$OMP CRITICAL (MPI)
[1000]	481	#ifdef CPP_MPI
	482	call MPI_GATHERV(Buffer_send,(min(ij_end,ij)-ij_begin+1)*ll,MPI_REAL8, &
	483	Buffer_Recv,Recv_count,displ,MPI_REAL8,rank,COMM_LMDZ,ierr)
	484	#endif
[985]	485	!$OMP END CRITICAL (MPI)
[630]	486
[1000]	487	if (MPI_Rank==rank) then
[630]	488
[1000]	489	if (ij==ip1jmp1) then
	490	do i=0,MPI_Size-1
	491	call Unpack_Data(Field((jj_begin_para(i)-1)*iip1+1,1),ij,ll, &
	492	jj_end_para(i)-jj_begin_para(i)+1,Buffer_Recv(displ(i)+1))
	493	enddo
	494	else if (ij==ip1jm) then
	495	do i=0,MPI_Size-1
	496	call Unpack_Data(Field((jj_begin_para(i)-1)*iip1+1,1),ij,ll, &
	497	min(jj_end_para(i),jjm)-jj_begin_para(i)+1,Buffer_Recv(displ(i)+1))
	498	enddo
	499	endif
	500	endif
	501	ENDIF ! using_mpi
[630]	502
	503	end subroutine Gather_Field
[985]	504
	505
[630]	506	subroutine AllGather_Field(Field,ij,ll)
	507	implicit none
[792]	508	#include "dimensions.h"
	509	#include "paramet.h"
[1000]	510	#ifdef CPP_MPI
[630]	511	include 'mpif.h'
[1000]	512	#endif
[630]	513	INTEGER :: ij,ll
	514	REAL, dimension(ij,ll) :: Field
	515	INTEGER :: ierr
	516
[1000]	517	IF (using_mpi) THEN
	518	call Gather_Field(Field,ij,ll,0)
[985]	519	!$OMP CRITICAL (MPI)
[1000]	520	#ifdef CPP_MPI
[764]	521	call MPI_BCAST(Field,ij*ll,MPI_REAL8,0,COMM_LMDZ,ierr)
[1000]	522	#endif
[985]	523	!$OMP END CRITICAL (MPI)
[1000]	524	ENDIF
[630]	525
	526	end subroutine AllGather_Field
	527
	528	subroutine Broadcast_Field(Field,ij,ll,rank)
	529	implicit none
[792]	530	#include "dimensions.h"
	531	#include "paramet.h"
[1000]	532	#ifdef CPP_MPI
[630]	533	include 'mpif.h'
[1000]	534	#endif
[630]	535	INTEGER :: ij,ll
	536	REAL, dimension(ij,ll) :: Field
	537	INTEGER :: rank
	538	INTEGER :: ierr
	539
[1000]	540	IF (using_mpi) THEN
	541
[985]	542	!$OMP CRITICAL (MPI)
[1000]	543	#ifdef CPP_MPI
[764]	544	call MPI_BCAST(Field,ij*ll,MPI_REAL8,rank,COMM_LMDZ,ierr)
[1000]	545	#endif
[985]	546	!$OMP END CRITICAL (MPI)
[630]	547
[1000]	548	ENDIF
[630]	549	end subroutine Broadcast_Field
	550
	551
[1462]	552	! Subroutine verif_hallo(Field,ij,ll,up,down)
	553	! implicit none
	554	!#include "dimensions.h"
	555	!#include "paramet.h"
	556	! include 'mpif.h'
	557	!
	558	! INTEGER :: ij,ll
	559	! REAL, dimension(ij,ll) :: Field
	560	! INTEGER :: up,down
	561	!
	562	! REAL,dimension(ij,ll): NewField
	563	!
	564	! NewField=0
	565	!
	566	! ijb=ij_begin
	567	! ije=ij_end
	568	! if (pole_nord)
	569	! NewField(ij_be
	570
[630]	571	end module parallel

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