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source: palm/trunk/SOURCE/pmc_server_mod.f90 @ 1886

Last change on this file since 1886 was 1851, checked in by maronga, 9 years ago
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[1762]	1	MODULE pmc_server
	2
	3	!--------------------------------------------------------------------------------!
	4	! This file is part of PALM.
	5	!
	6	! PALM is free software: you can redistribute it and/or modify it under the terms
	7	! of the GNU General Public License as published by the Free Software Foundation,
	8	! either version 3 of the License, or (at your option) any later version.
	9	!
	10	! PALM is distributed in the hope that it will be useful, but WITHOUT ANY
	11	! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
	12	! A PARTICULAR PURPOSE. See the GNU General Public License for more details.
	13	!
	14	! You should have received a copy of the GNU General Public License along with
	15	! PALM. If not, see <http://www.gnu.org/licenses/>.
	16	!
[1818]	17	! Copyright 1997-2016 Leibniz Universitaet Hannover
[1762]	18	!--------------------------------------------------------------------------------!
	19	!
	20	! Current revisions:
	21	! ------------------
[1834]	22	!
	23	!
[1762]	24	! Former revisions:
	25	! -----------------
	26	! $Id: pmc_server_mod.f90 1851 2016-04-08 13:32:50Z suehring $
	27	!
[1851]	28	! 1850 2016-04-08 13:29:27Z maronga
	29	! Module renamed
	30	!
	31	!
[1834]	32	! 1833 2016-04-07 14:23:03Z raasch
	33	! gfortran requires pointer attributes for some array declarations,
	34	! long line wrapped
	35	!
[1809]	36	! 1808 2016-04-05 19:44:00Z raasch
	37	! MPI module used by default on all machines
	38	!
[1798]	39	! 1797 2016-03-21 16:50:28Z raasch
	40	! introduction of different datatransfer modes
	41	!
[1792]	42	! 1791 2016-03-11 10:41:25Z raasch
	43	! Debug write-statements commented out
	44	!
[1787]	45	! 1786 2016-03-08 05:49:27Z raasch
	46	! change in client-server data transfer: server now gets data from client
	47	! instead that client put's it to the server
	48	!
[1780]	49	! 1779 2016-03-03 08:01:28Z raasch
	50	! kind=dp replaced by wp,
	51	! error messages removed or changed to PALM style, dim_order removed
	52	! array management changed from linked list to sequential loop
	53	!
[1767]	54	! 1766 2016-02-29 08:37:15Z raasch
	55	! modifications to allow for using PALM's pointer version
	56	! +new routine pmc_s_set_active_data_array
	57	!
[1765]	58	! 1764 2016-02-28 12:45:19Z raasch
	59	! cpp-statement added (nesting can only be used in parallel mode)
	60	!
[1763]	61	! 1762 2016-02-25 12:31:13Z hellstea
	62	! Initial revision by K. Ketelsen
[1762]	63	!
	64	! Description:
	65	! ------------
	66	!
	67	! Server part of Palm Model Coupler
	68	!------------------------------------------------------------------------------!
	69
[1764]	70	#if defined( __parallel )
[1762]	71	use, intrinsic :: iso_c_binding
	72
[1808]	73	#if defined( __mpifh )
	74	INCLUDE "mpif.h"
	75	#else
[1764]	76	USE MPI
	77	#endif
	78	USE kinds
[1762]	79	USE PMC_general, ONLY: ClientDef, PMC_MAX_MODELL,PMC_sort, DA_NameDef, DA_Desclen, DA_Namelen, &
[1779]	80	PMC_G_SetName, PeDef, ArrayDef, PMC_MAX_ARRAY
[1762]	81	USE PMC_handle_communicator, ONLY: m_model_comm,m_model_rank,m_model_npes, m_to_client_comm, &
	82	PMC_Server_for_Client, m_world_rank
	83	USE PMC_MPI_wrapper, ONLY: PMC_Send_to_Client, PMC_Recv_from_Client, PMC_Bcast, PMC_Inter_Bcast, &
	84	PMC_Alloc_mem, PMC_Time
	85
	86	IMPLICIT none
	87	PRIVATE
	88	SAVE
	89
	90	TYPE ClientIndexDef
	91	INTEGER :: NrPoints
	92	INTEGER,DIMENSION(:,:),allocatable :: index_list_2d
	93	END TYPE ClientIndexDef
	94
	95	TYPE(ClientDef),DIMENSION(PMC_MAX_MODELL) :: Clients
	96	TYPE(ClientIndexDef),DIMENSION(PMC_MAX_MODELL) :: indClients
	97
[1779]	98	INTEGER :: next_array_in_list = 0
	99
[1762]	100	PUBLIC PMC_Server_for_Client
	101
	102	INTERFACE PMC_ServerInit
	103	MODULE procedure PMC_ServerInit
	104	END INTERFACE PMC_ServerInit
	105
	106	INTERFACE PMC_S_Set_2D_index_list
	107	MODULE procedure PMC_S_Set_2D_index_list
	108	END INTERFACE PMC_S_Set_2D_index_list
	109
[1779]	110	INTERFACE PMC_S_clear_next_array_list
	111	MODULE procedure PMC_S_clear_next_array_list
	112	END INTERFACE PMC_S_clear_next_array_list
	113
[1762]	114	INTERFACE PMC_S_GetNextArray
	115	MODULE procedure PMC_S_GetNextArray
	116	END INTERFACE PMC_S_GetNextArray
	117
	118	INTERFACE PMC_S_Set_DataArray
	119	MODULE procedure PMC_S_Set_DataArray_2d
	120	MODULE procedure PMC_S_Set_DataArray_3d
	121	END INTERFACE PMC_S_Set_DataArray
	122
	123	INTERFACE PMC_S_setInd_and_AllocMem
	124	MODULE procedure PMC_S_setInd_and_AllocMem
	125	END INTERFACE PMC_S_setInd_and_AllocMem
	126
	127	INTERFACE PMC_S_FillBuffer
	128	MODULE procedure PMC_S_FillBuffer
	129	END INTERFACE PMC_S_FillBuffer
	130
	131	INTERFACE PMC_S_GetData_from_Buffer
	132	MODULE procedure PMC_S_GetData_from_Buffer
	133	END INTERFACE PMC_S_GetData_from_Buffer
	134
[1766]	135	INTERFACE PMC_S_Set_Active_data_array
	136	MODULE procedure PMC_S_Set_Active_data_array
	137	END INTERFACE PMC_S_Set_Active_data_array
	138
[1762]	139	! PUBLIC section
	140
	141	PUBLIC PMC_ServerInit, PMC_S_Set_2D_index_list, PMC_S_GetNextArray, PMC_S_Set_DataArray
[1766]	142	PUBLIC PMC_S_setInd_and_AllocMem, PMC_S_FillBuffer, PMC_S_GetData_from_Buffer, PMC_S_Set_Active_data_array
[1779]	143	PUBLIC PMC_S_clear_next_array_list
[1762]	144
	145	CONTAINS
	146
	147	SUBROUTINE PMC_ServerInit
	148	IMPLICIT none
	149	INTEGER :: i
	150	INTEGER :: j
	151	INTEGER :: ClientId
	152	INTEGER :: istat
	153
	154	do i=1,size(PMC_Server_for_Client)-1
[1791]	155	! if(m_model_comm == 0) write(0,*) 'PMC_Server: Initialize client Id',PMC_Server_for_Client(i)
[1762]	156
	157	ClientId = PMC_Server_for_Client(i)
	158
	159	Clients(ClientId)%model_comm = m_model_comm
	160	Clients(ClientId)%inter_comm = m_to_client_comm(ClientId)
	161
	162	! Get rank and size
	163	CALL MPI_Comm_rank (Clients(ClientId)%model_comm, Clients(ClientId)%model_rank, istat);
	164	CALL MPI_Comm_size (Clients(ClientId)%model_comm, Clients(ClientId)%model_npes, istat);
	165	CALL MPI_Comm_remote_size (Clients(ClientId)%inter_comm, Clients(ClientId)%inter_npes, istat);
	166
	167	! Intra communicater is used for MPI_Get
	168	CALL MPI_Intercomm_merge (Clients(ClientId)%inter_comm, .false., Clients(ClientId)%intra_comm, istat);
	169	CALL MPI_Comm_rank (Clients(ClientId)%intra_comm, Clients(ClientId)%intra_rank, istat);
	170
[1791]	171	! write(9,*) 'ClientId ',i,ClientId,m_world_rank, Clients(ClientId)%inter_npes
[1762]	172
	173	ALLOCATE (Clients(ClientId)%PEs(Clients(ClientId)%inter_npes))
[1779]	174	!
	175	!-- Allocate for all client PEs an array of TYPE ArrayDef to store information of transfer array
	176	do j=1,Clients(ClientId)%inter_npes
	177	Allocate(Clients(ClientId)%PEs(j)%array_list(PMC_MAX_ARRAY))
[1762]	178	end do
	179
	180	CALL Get_DA_names_from_client (ClientId)
	181	end do
	182
	183	return
	184	END SUBROUTINE PMC_ServerInit
	185
	186	SUBROUTINE PMC_S_Set_2D_index_list (ClientId, index_list)
	187	IMPLICIT none
	188	INTEGER,INTENT(IN) :: ClientId
	189	INTEGER,DIMENSION(:,:),INTENT(INOUT) :: index_list !Index list will be modified in sort, therefore INOUT
	190
	191	!-- Local variables
	192	INTEGER :: ip,is,ie,ian,ic,n
	193	INTEGER :: istat
	194
	195	if(m_model_rank == 0) then
	196	CALL PMC_sort (index_list, 6) ! Sort to ascending Server PE
	197	is = 1
	198
	199	do ip=0,m_model_npes-1
	200
	201	! Split into Server PEs
	202	ie = is-1 !there may be no entry for this PE
	203	if(is <= size(index_list,2) .and. ie >= 0) then
	204	do while ( index_list(6,ie+1) == ip)
	205	ie = ie+1
	206	if( ie == size(index_list,2)) EXIT
	207	end do
	208
	209	ian = ie-is+1
	210	else
	211	is = -1
	212	ie = -2
	213	ian = 0
	214	end if
	215
	216	! Send data to other server PEs
	217
	218	if(ip == 0) then
	219	indClients(ClientId)%NrPoints = ian
	220	if(ian > 0) then
	221	ALLOCATE (indClients(ClientId)%index_list_2d(6,ian))
	222	indClients(ClientId)%index_list_2d(:,1:ian) = index_list(:,is:ie)
	223	end if
	224	else
	225	CALL MPI_Send (ian, 1, MPI_INTEGER, ip, 1000, m_model_comm, istat)
	226	if(ian > 0) then
	227	CALL MPI_Send (index_list(1,is), 6*ian, MPI_INTEGER, ip, 1001, &
	228	m_model_comm, istat)
	229	end if
	230	end if
	231	is = ie+1
	232	end do
	233	else
	234	CALL MPI_Recv (indClients(ClientId)%NrPoints, 1, MPI_INTEGER, 0, 1000, m_model_comm, &
	235	MPI_STATUS_IGNORE, istat)
	236	ian = indClients(ClientId)%NrPoints
	237	if(ian > 0) then
	238	ALLOCATE(indClients(ClientId)%index_list_2d(6,ian))
	239	CALL MPI_RECV (indClients(ClientId)%index_list_2d, 6*ian, MPI_INTEGER, 0, 1001, &
	240	m_model_comm, MPI_STATUS_IGNORE, istat)
	241	end if
	242	end if
	243
	244	CALL Set_PE_index_list (ClientId,Clients(ClientId),indClients(ClientId)%index_list_2d,indClients(ClientId)%NrPoints)
	245
	246	return
	247	END SUBROUTINE PMC_S_Set_2D_index_list
	248
[1779]	249	SUBROUTINE PMC_S_clear_next_array_list
	250	IMPLICIT none
[1762]	251
[1779]	252	next_array_in_list = 0
[1762]	253
[1779]	254	return
	255	END SUBROUTINE PMC_S_clear_next_array_list
[1762]	256
[1779]	257	! List handling is still required to get minimal interaction with pmc_interface
	258	logical function PMC_S_GetNextArray (ClientId, myName)
	259	INTEGER(iwp),INTENT(IN) :: ClientId
	260	CHARACTER(len=*),INTENT(OUT) :: myName
[1762]	261
[1779]	262	!-- local variables
	263	TYPE(PeDef),POINTER :: aPE
	264	TYPE(ArrayDef),POINTER :: ar
[1762]	265
[1779]	266	next_array_in_list = next_array_in_list+1
[1762]	267
[1779]	268	!-- Array Names are the same on all client PE, so take first PE to get the name
	269	aPE => Clients(ClientId)%PEs(1)
	270
	271	if(next_array_in_list > aPE%Nr_arrays) then
	272	PMC_S_GetNextArray = .false. ! all arrays done
	273	return
	274	end if
	275
	276	ar => aPE%array_list(next_array_in_list)
	277	myName = ar%name
	278
	279	PMC_S_GetNextArray = .true. ! Return true if legal array
	280	return
[1762]	281	END function PMC_S_GetNextArray
	282
[1766]	283	SUBROUTINE PMC_S_Set_DataArray_2d (ClientId, array, array_2 )
[1779]	284
[1762]	285	IMPLICIT none
[1779]	286
[1833]	287	INTEGER,INTENT(IN) :: ClientId
[1779]	288
[1833]	289	REAL(wp), INTENT(IN), DIMENSION(:,:), POINTER :: array
	290	REAL(wp), INTENT(IN), DIMENSION(:,:), POINTER, OPTIONAL :: array_2
	291
[1762]	292	INTEGER :: NrDims
	293	INTEGER,DIMENSION (4) :: dims
	294	TYPE(c_ptr) :: array_adr
[1766]	295	TYPE(c_ptr) :: second_adr
[1762]	296
	297	dims = 1
	298
	299	NrDims = 2
	300	dims(1) = size(array,1)
	301	dims(2) = size(array,2)
	302	array_adr = c_loc(array)
	303
[1766]	304	IF ( PRESENT( array_2 ) ) THEN
	305	second_adr = c_loc(array_2)
[1779]	306	CALL PMC_S_SetArray (ClientId, NrDims, dims, array_adr, second_adr = second_adr)
[1766]	307	ELSE
[1779]	308	CALL PMC_S_SetArray (ClientId, NrDims, dims, array_adr)
[1766]	309	ENDIF
[1762]	310
	311	return
	312	END SUBROUTINE PMC_S_Set_DataArray_2d
	313
[1766]	314	SUBROUTINE PMC_S_Set_DataArray_3d (ClientId, array, nz_cl, nz, array_2 )
[1779]	315
[1762]	316	IMPLICIT none
[1779]	317
[1833]	318	INTEGER,INTENT(IN) :: ClientId
	319
	320	REAL(wp), INTENT(IN), DIMENSION(:,:,:), POINTER :: array
	321	REAL(wp), INTENT(IN), DIMENSION(:,:,:), POINTER, OPTIONAL :: array_2
[1762]	322	INTEGER,INTENT(IN) :: nz_cl
	323	INTEGER,INTENT(IN) :: nz
[1779]	324
[1762]	325	INTEGER :: NrDims
	326	INTEGER,DIMENSION (4) :: dims
	327	TYPE(c_ptr) :: array_adr
[1766]	328	TYPE(c_ptr) :: second_adr
[1762]	329
	330	dims = 1
	331
	332	dims = 0
	333	NrDims = 3
	334	dims(1) = size(array,1)
	335	dims(2) = size(array,2)
	336	dims(3) = size(array,3)
	337	dims(4) = nz_cl+dims(1)-nz ! works for first dimension 1:nz and 0:nz+1
	338
	339	array_adr = c_loc(array)
	340
[1766]	341	!
	342	!-- In PALM's pointer version, two indices have to be stored internally.
	343	!-- The active address of the data array is set in swap_timelevel
	344	IF ( PRESENT( array_2 ) ) THEN
	345	second_adr = c_loc(array_2)
[1779]	346	CALL PMC_S_SetArray (ClientId, NrDims, dims, array_adr, second_adr = second_adr)
[1766]	347	ELSE
[1779]	348	CALL PMC_S_SetArray (ClientId, NrDims, dims, array_adr)
[1766]	349	ENDIF
[1762]	350
	351	return
	352	END SUBROUTINE PMC_S_Set_DataArray_3d
	353
	354	SUBROUTINE PMC_S_setInd_and_AllocMem (ClientId)
[1779]	355
	356	USE control_parameters, &
	357	ONLY: message_string
	358
[1762]	359	IMPLICIT none
[1779]	360
[1786]	361	!
	362	!-- Naming convention for appendices: _sc -> server to client transfer
	363	!-- _cs -> client to server transfer
	364	!-- Send -> Server to client transfer
	365	!-- Recv -> client to server transfer
[1762]	366	INTEGER,INTENT(IN) :: ClientId
	367
[1779]	368	INTEGER :: i, istat, ierr, j
[1762]	369	INTEGER :: arlen, myIndex, tag
	370	INTEGER :: rCount ! count MPI requests
[1764]	371	INTEGER(idp) :: bufsize ! Size of MPI data Window
[1762]	372	TYPE(PeDef),POINTER :: aPE
	373	TYPE(ArrayDef),POINTER :: ar
	374	CHARACTER(len=DA_Namelen) :: myName
	375	INTEGER,DIMENSION(1024) :: req
	376	Type(c_ptr) :: base_ptr
[1786]	377	REAL(wp),DIMENSION(:),POINTER,SAVE :: base_array_sc !Base array for server to client transfer
	378	REAL(wp),DIMENSION(:),POINTER,SAVE :: base_array_cs !Base array for client to server transfer
[1762]	379	INTEGER(KIND=MPI_ADDRESS_KIND) :: WinSize
	380
[1786]	381	!
	382	!-- Server to client direction
[1762]	383	myIndex = 1
	384	rCount = 0
	385	bufsize = 8
	386
[1786]	387	!
	388	!-- First stride: Compute size and set index
[1762]	389	do i=1,Clients(ClientId)%inter_npes
	390	aPE => Clients(ClientId)%PEs(i)
	391	tag = 200
[1779]	392	do j=1,aPE%Nr_arrays
	393	ar => aPE%array_list(j)
	394	if(ar%NrDims == 2) then
[1786]	395	arlen = aPE%NrEle ! 2D
[1779]	396	else if(ar%NrDims == 3) then
[1786]	397	arlen = aPE%NrEle * ar%A_dim(4); ! 3D
[1762]	398	else
	399	arlen = -1
	400	end if
[1786]	401	ar%SendIndex = myIndex
[1762]	402
	403	tag = tag+1
	404	rCount = rCount+1
	405	CALL MPI_Isend (myIndex, 1, MPI_INTEGER, i-1, tag, Clients(ClientId)%inter_comm, req(rCount),ierr)
	406
	407	if(rCount == 1024) then ! Maximum of 1024 outstanding requests
	408	CALL MPI_Waitall (rCount, req, MPI_STATUSES_IGNORE, ierr)
	409	rCount = 0;
	410	end if
	411
	412	myIndex = myIndex+arlen
	413	bufsize = bufsize+arlen
[1786]	414	ar%SendSize = arlen
[1762]	415
	416	end do
[1786]	417	if(rCount > 0) then ! Wait for all send completed
[1762]	418	CALL MPI_Waitall (rCount, req, MPI_STATUSES_IGNORE, ierr)
	419	end if
	420	end do
	421
[1786]	422	!
	423	!-- Create RMA (One Sided Communication) window for data buffer server to
	424	!-- client transfer.
	425	!-- The buffer of MPI_Get (counter part of transfer) can be PE-local, i.e.
	426	!-- it can but must not be part of the MPI RMA window.
	427	!-- Only one RMA window is required to prepare the data
	428	!-- for server -> client transfer on the server side and
	429	!-- for client -> server transfer on the client side
	430	CALL PMC_Alloc_mem (base_array_sc, bufsize)
	431	Clients(ClientId)%TotalBufferSize = bufsize*wp !Total buffer size in Byte
[1762]	432
[1786]	433	WinSize = bufsize*wp
	434	CALL MPI_Win_create (base_array_sc, WinSize, wp, MPI_INFO_NULL, &
	435	Clients(ClientId)%intra_comm, Clients(ClientId)%win_server_client, ierr)
	436	CALL MPI_Win_fence (0, Clients(ClientId)%win_server_client, ierr); ! Open Window to set data
	437	!
	438	!-- Second stride: Set Buffer pointer
	439	do i=1,Clients(ClientId)%inter_npes
	440	aPE => Clients(ClientId)%PEs(i)
	441	do j=1,aPE%Nr_arrays
	442	ar => aPE%array_list(j)
	443	ar%SendBuf = c_loc(base_array_sc(ar%SendIndex))
	444	if(ar%SendIndex+ar%SendSize > bufsize) then
[1833]	445	write(0,'(a,i4,4i7,1x,a)') 'Server Buffer too small ',i, &
	446	ar%SendIndex,ar%SendSize,ar%SendIndex+ar%SendSize,bufsize,trim(ar%name)
[1786]	447	CALL MPI_Abort (MPI_COMM_WORLD, istat, ierr)
	448	end if
	449	end do
	450	end do
	451
	452	!-- Client to server direction
	453
	454	bufsize = 8
	455
	456	!-- First stride, Compute size and set index
	457
	458	do i=1,Clients(ClientId)%inter_npes
	459	aPE => Clients(ClientId)%PEs(i)
	460	tag = 300
	461
	462	do j=1,aPE%Nr_arrays
	463	ar => aPE%array_list(j)
	464
	465	! Receive Index from client
	466	tag = tag+1
	467	CALL MPI_Recv (myIndex, 1, MPI_INTEGER, i-1, tag, Clients(ClientId)%inter_comm, MPI_STATUS_IGNORE, ierr)
	468
	469	if(ar%NrDims == 3) then
	470	bufsize = max(bufsize,aPE%NrEle * ar%A_dim(4)) ! 3D
	471	else
	472	bufsize = max(bufsize,aPE%NrEle) ! 2D
	473	end if
	474	ar%RecvIndex = myIndex
	475	end do
	476
	477	end do
	478
	479	!-- Create RMA (One Sided Communication) data buffer
	480	!-- The buffer for MPI_Get can be PE local, i.e. it can but must not be part of the MPI RMA window
	481
	482	CALL PMC_Alloc_mem (base_array_cs, bufsize, base_ptr)
[1762]	483	Clients(ClientId)%TotalBufferSize = bufsize*wp !Total buffer size in Byte
	484
	485	CALL MPI_Barrier(Clients(ClientId)%intra_comm, ierr)
	486
[1786]	487	!-- Second stride, Set Buffer pointer
[1762]	488
	489	do i=1,Clients(ClientId)%inter_npes
	490	aPE => Clients(ClientId)%PEs(i)
[1786]	491
[1779]	492	do j=1,aPE%Nr_arrays
	493	ar => aPE%array_list(j)
[1786]	494	ar%RecvBuf = base_ptr
[1762]	495	end do
	496	end do
	497
	498	return
	499	END SUBROUTINE PMC_S_setInd_and_AllocMem
	500
	501	SUBROUTINE PMC_S_FillBuffer (ClientId, WaitTime)
	502	IMPLICIT none
[1779]	503	INTEGER,INTENT(IN) :: ClientId
	504	REAL(wp), INTENT(OUT), OPTIONAL :: WaitTime
[1762]	505
[1779]	506	INTEGER :: ip,ij,istat,ierr,j
	507	INTEGER :: myIndex
	508	REAL(wp) :: t1,t2
	509	TYPE(PeDef),POINTER :: aPE
	510	TYPE(ArrayDef),POINTER :: ar
	511	CHARACTER(len=DA_Namelen) :: myName
	512	INTEGER,DIMENSION(1) :: buf_shape
	513	REAL(wp), POINTER, DIMENSION(:) :: buf
	514	REAL(wp), POINTER, DIMENSION(:,:) :: data_2d
	515	REAL(wp), POINTER, DIMENSION(:,:,:) :: data_3d
[1762]	516
[1797]	517	!-- Synchronization of the model is done in pmci_client_synchronize and pmci_server_synchronize
	518	!-- Therefor the RMA window cann be filled without sychronization at this point and the barrier
	519	!-- is not necessary
	520	!-- Please note that WaitTime has to be set in PMC_S_FillBuffer AND PMC_C_GetBuffer
[1762]	521
[1797]	522	if(present(WaitTime)) then
	523	t1 = PMC_Time()
	524	CALL MPI_Barrier(Clients(ClientId)%intra_comm, ierr)
	525	t2 = PMC_Time()
	526	WaitTime = t2-t1
	527	end if
	528
[1762]	529	do ip=1,Clients(ClientId)%inter_npes
	530	aPE => Clients(ClientId)%PEs(ip)
[1779]	531	do j=1,aPE%Nr_arrays
	532	ar => aPE%array_list(j)
[1762]	533	myIndex=1
[1779]	534	if(ar%NrDims == 2) then
[1762]	535	buf_shape(1) = aPE%NrEle
	536	CALL c_f_pointer(ar%SendBuf, buf, buf_shape)
	537	CALL c_f_pointer(ar%data, data_2d, ar%A_dim(1:2))
	538	do ij=1,aPE%NrEle
	539	buf(myIndex) = data_2d(aPE%locInd(ij)%j,aPE%locInd(ij)%i)
	540	myIndex = myIndex+1
	541	end do
[1779]	542	else if(ar%NrDims == 3) then
[1762]	543	buf_shape(1) = aPE%NrEle*ar%A_dim(4)
	544	CALL c_f_pointer(ar%SendBuf, buf, buf_shape)
	545	CALL c_f_pointer(ar%data, data_3d, ar%A_dim(1:3))
	546	do ij=1,aPE%NrEle
	547	buf(myIndex:myIndex+ar%A_dim(4)-1) = data_3d(1:ar%A_dim(4),aPE%locInd(ij)%j,aPE%locInd(ij)%i)
	548	myIndex = myIndex+ar%A_dim(4)
	549	end do
	550	end if
	551	end do
	552	end do
	553
[1786]	554	CALL MPI_Barrier(Clients(ClientId)%intra_comm, ierr) ! buffer is filled
[1762]	555
	556	return
	557	END SUBROUTINE PMC_S_FillBuffer
	558
	559	SUBROUTINE PMC_S_GetData_from_Buffer (ClientId, WaitTime)
[1779]	560
[1762]	561	IMPLICIT none
	562
[1779]	563	INTEGER,INTENT(IN) :: ClientId
	564	REAL(wp), INTENT(OUT), OPTIONAL :: WaitTime
	565
[1762]	566	!-- local variables
[1779]	567	INTEGER :: ip,ij,istat,ierr,j
	568	INTEGER :: myIndex
[1786]	569	INTEGER :: nr
[1779]	570	REAL(wp) :: t1,t2
	571	TYPE(PeDef),POINTER :: aPE
	572	TYPE(ArrayDef),POINTER :: ar
	573	CHARACTER(len=DA_Namelen) :: myName
	574	INTEGER,DIMENSION(1) :: buf_shape
	575	REAL(wp), POINTER, DIMENSION(:) :: buf
	576	REAL(wp), POINTER, DIMENSION(:,:) :: data_2d
	577	REAL(wp), POINTER, DIMENSION(:,:,:) :: data_3d
[1786]	578	INTEGER :: target_pe
	579	INTEGER(kind=MPI_ADDRESS_KIND) :: target_disp
[1762]	580
	581	t1 = PMC_Time()
[1786]	582	CALL MPI_Barrier(Clients(ClientId)%intra_comm, ierr) ! Wait for client to fill buffer
	583	t2 = PMC_Time()-t1
	584	if(present(WaitTime)) WaitTime = t2
[1762]	585
[1786]	586	! CALL MPI_Win_fence (0, Clients(ClientId)%win_server_client, ierr) ! Fence might do it, test later
	587	CALL MPI_Barrier(Clients(ClientId)%intra_comm, ierr) ! Wait for buffer is filled
	588
[1762]	589	do ip=1,Clients(ClientId)%inter_npes
	590	aPE => Clients(ClientId)%PEs(ip)
[1779]	591	do j=1,aPE%Nr_arrays
	592	ar => aPE%array_list(j)
[1786]	593
	594	if(ar%RecvIndex < 0) CYCLE
	595
	596	if(ar%NrDims == 2) then
	597	nr = aPE%NrEle
	598	else if(ar%NrDims == 3) then
	599	nr = aPE%NrEle*ar%A_dim(4)
	600	end if
	601
	602	buf_shape(1) = nr
	603	CALL c_f_pointer(ar%RecvBuf, buf, buf_shape)
	604	!
	605	!-- MPI passive target RMA
	606
	607	if(nr > 0) then
	608	target_disp = ar%RecvIndex-1
	609	target_pe = ip-1+m_model_npes ! client PEs are located behind server PEs
	610	CALL MPI_Win_lock (MPI_LOCK_SHARED , target_pe, 0, Clients(ClientId)%win_server_client, ierr)
	611	CALL MPI_Get (buf, nr, MPI_REAL, target_pe, target_disp, nr, MPI_REAL, Clients(ClientId)%win_server_client, ierr)
	612	CALL MPI_Win_unlock (target_pe, Clients(ClientId)%win_server_client, ierr)
	613	end if
	614
[1762]	615	myIndex=1
[1779]	616	if(ar%NrDims == 2) then
[1762]	617	CALL c_f_pointer(ar%data, data_2d, ar%A_dim(1:2))
	618	do ij=1,aPE%NrEle
	619	data_2d(aPE%locInd(ij)%j,aPE%locInd(ij)%i) = buf(myIndex)
	620	myIndex = myIndex+1
	621	end do
[1779]	622	else if(ar%NrDims == 3) then
[1762]	623	CALL c_f_pointer(ar%data, data_3d, ar%A_dim(1:3))
	624	do ij=1,aPE%NrEle
	625	data_3d(1:ar%A_dim(4),aPE%locInd(ij)%j,aPE%locInd(ij)%i) = buf(myIndex:myIndex+ar%A_dim(4)-1)
	626	myIndex = myIndex+ar%A_dim(4)
	627	end do
	628	end if
	629	end do
	630	end do
	631
	632	END SUBROUTINE PMC_S_GetData_from_Buffer
	633
	634	! Private SUBROUTINEs
	635
	636	SUBROUTINE Get_DA_names_from_client (ClientId)
	637	IMPLICIT none
	638	INTEGER,INTENT(IN) :: ClientId
	639	!-- local variables
	640	type(DA_NameDef) :: myName
	641
	642	! Get Data Array Description and Name from Client
	643
	644	do
	645	CALL PMC_Bcast ( myName%couple_index, 0, comm=m_to_client_comm(ClientId))
	646	if(myName%couple_index == -1) EXIT
	647	CALL PMC_Bcast ( myName%ServerDesc, 0, comm=m_to_client_comm(ClientId))
	648	CALL PMC_Bcast ( myName%NameOnServer, 0, comm=m_to_client_comm(ClientId))
	649	CALL PMC_Bcast ( myName%ClientDesc, 0, comm=m_to_client_comm(ClientId))
	650	CALL PMC_Bcast ( myName%NameOnClient, 0, comm=m_to_client_comm(ClientId))
	651
	652	CALL PMC_G_SetName (clients(ClientID), myName%couple_index, myName%NameOnServer )
	653	end do
	654
	655	return
	656	END SUBROUTINE Get_DA_names_from_client
	657
[1779]	658	SUBROUTINE PMC_S_SetArray (ClientId, NrDims, dims, array_adr, second_adr)
[1762]	659	IMPLICIT none
	660
	661	INTEGER,INTENT(IN) :: ClientId
	662	INTEGER,INTENT(IN) :: NrDims
	663	INTEGER,INTENT(IN),DIMENSION(:) :: dims
	664	TYPE(c_ptr),INTENT(IN) :: array_adr
[1766]	665	TYPE(c_ptr),INTENT(IN),OPTIONAL :: second_adr
[1762]	666
	667	INTEGER :: i
	668	TYPE(PeDef),POINTER :: aPE
	669	TYPE(ArrayDef),POINTER :: ar
	670	CHARACTER(len=DA_Namelen) :: myName
	671
	672	! Set Array for Client interPE 0
	673
	674	do i=1,Clients(ClientId)%inter_npes
	675	aPE => Clients(ClientId)%PEs(i)
[1779]	676	ar => aPE%array_list(next_array_in_list)
[1762]	677	ar%NrDims = NrDims
	678	ar%A_dim = dims
	679	ar%data = array_adr
[1766]	680	if(present(second_adr)) then
	681	ar%po_data(1) = array_adr
	682	ar%po_data(2) = second_adr
	683	else
	684	ar%po_data(1) = C_NULL_PTR
	685	ar%po_data(2) = C_NULL_PTR
	686	end if
[1762]	687	end do
	688
	689	return
	690	END SUBROUTINE PMC_S_SetArray
	691
	692
[1766]	693	SUBROUTINE PMC_S_Set_Active_data_array (ClientId,iactive)
	694	IMPLICIT none
	695
	696	INTEGER,INTENT(IN) :: ClientId
	697	INTEGER,INTENT(IN) :: iactive
	698
	699	!-- local variables
[1779]	700	INTEGER :: i, ip, j
[1766]	701	TYPE(PeDef),POINTER :: aPE
	702	TYPE(ArrayDef),POINTER :: ar
	703	CHARACTER(len=DA_Namelen) :: myName
	704
	705	do ip=1,Clients(ClientId)%inter_npes
	706	aPE => Clients(ClientId)%PEs(ip)
[1779]	707	do j=1,aPE%Nr_arrays
	708	ar => aPE%array_list(j)
[1766]	709	if(iactive == 1 .OR. iactive == 2) then
	710	ar%data = ar%po_data(iactive)
	711	end if
	712	end do
	713	end do
	714
	715	return
	716	END SUBROUTINE PMC_S_Set_Active_data_array
	717
	718
[1762]	719	SUBROUTINE Set_PE_index_list (ClientId, myClient,index_list,NrP)
	720	IMPLICIT none
	721
	722	INTEGER,INTENT(IN) :: ClientId
	723	TYPE(ClientDef),INTENT(INOUT) :: myClient
	724	INTEGER,INTENT(IN),DIMENSION(:,:) :: index_list
	725	INTEGER,INTENT(IN) :: NrP
	726
	727	!-- local variables
	728	INTEGER :: i,j,ind,ierr,i2
	729	TYPE(PeDef),POINTER :: aPE
	730	INTEGER :: RemPE
	731	INTEGER,DIMENSION(myClient%inter_npes) :: RemInd
	732	INTEGER,DIMENSION(:),POINTER :: RemIndw
	733	INTEGER,DIMENSION(:),POINTER :: RLdef
	734	INTEGER(KIND=MPI_ADDRESS_KIND) :: WinSize
	735	INTEGER :: indWin,indWin2
	736
	737	! First, count entries for every remote client PE
	738
	739	do i=1,myClient%inter_npes
	740	aPE => myClient%PEs(i)
	741	aPE%NrEle = 0
	742	end do
	743
	744	do j=1,NrP ! loop over number of cells coarse grid
	745	RemPE = index_list(5,j)+1 ! Pe number remote PE
	746	aPE => myClient%PEs(RemPE)
	747	aPE% NrEle = aPE% NrEle+1 ! Increment Number of elements for this client Pe
	748	end do
	749
	750	do i=1,myClient%inter_npes
	751	aPE => myClient%PEs(i)
	752	ALLOCATE(aPE%locInd(aPE%NrEle))
	753	end do
	754
	755	RemInd = 0
	756
	757	! Second, Create lists
	758
	759	do j=1,NrP ! loop over number of cells coarse grid
	760	RemPE = index_list(5,j)+1 ! Pe number remote PE
	761	aPE => myClient%PEs(RemPE)
	762	RemInd(RemPE) = RemInd(RemPE)+1
	763	ind = RemInd(RemPE)
	764	aPE%locInd(ind)%i = index_list(1,j)
	765	aPE%locInd(ind)%j = index_list(2,j)
	766	end do
	767
	768	! Prepare Number of Elements for Client PEs
	769	CALL PMC_Alloc_mem (RLdef, myClient%inter_npes*2)
	770	WinSize = myClient%inter_npesc_sizeof(i)2 ! Number of Client PEs * size of INTEGER (i just arbitrary INTEGER)
	771
	772	CALL MPI_Win_create (RLdef, WinSize, iwp, MPI_INFO_NULL, myClient%intra_comm, indWin, ierr);
	773	CALL MPI_Win_fence (0, indWin, ierr); ! Open Window to set data
	774
	775	RLdef(1) = 0 ! Index on Remote PE 0
	776	RLdef(2) = RemInd(1) ! Number of Elements on Rem PE 0
	777
	778	do i=2,myClient%inter_npes ! Reserve Buffer for index array
	779	i2 = (i-1)*2+1
	780	RLdef(i2) = RLdef(i2-2) + RLdef(i2-1)*2 ! Index on Remote PE
	781	RLdef(i2+1) = RemInd(i) ! Number of Elements on Remote PE
	782	end do
	783
	784	CALL MPI_Win_fence (0, indWin, ierr); ! Close Window to allow client to access data
	785	CALL MPI_Win_fence (0, indWin, ierr); ! Client has retrieved data
	786
	787	i2 = 2*myClient%inter_npes-1
	788	WinSize = (RLdef(i2)+RLdef(i2+1))*2
	789	WinSize = max(WinSize,1) ! Make sure, MPI_Alloc_mem works
	790
	791	CALL PMC_Alloc_mem (RemIndw, int(WinSize))
	792
	793	CALL MPI_Barrier (m_model_comm, ierr)
	794	CALL MPI_Win_create (RemIndw, WinSize*c_sizeof(i), iwp, MPI_INFO_NULL, myClient%intra_comm, indWin2, ierr);
	795
	796	CALL MPI_Win_fence (0, indWin2, ierr); ! Open Window to set data
	797	do j=1,NrP ! this loop creates the 2D index list
	798	RemPE = index_list(5,j)+1 ! Pe number remote PE
	799	aPE => myClient%PEs(RemPE)
	800	i2 = RemPE*2-1
	801	ind = RLdef(i2)+1
	802	RemIndw(ind) = index_list(3,j)
	803	RemIndw(ind+1) = index_list(4,j)
	804	RLdef(i2) = RLdef(i2)+2
	805	end do
	806	CALL MPI_Win_fence (0, indWin2, ierr); !all data set
	807
	808	CALL MPI_Barrier(myClient%intra_comm, ierr) ! Dont know why, but this barrier is necessary before we can free the windows
	809
	810	CALL MPI_Win_free(indWin, ierr)
	811	CALL MPI_Win_free(indWin2, ierr)
	812
	813	! Sollte funktionieren, Problem mit MPI implementation
	814	! https://www.lrz.de/services/software/parallel/mpi/onesided
	815	! CALL MPI_Free_mem (RemIndw, ierr)
	816
	817	return
	818	END SUBROUTINE Set_PE_index_list
	819
[1764]	820	#endif
[1762]	821	END MODULE pmc_server

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