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source: palm/trunk/SOURCE/pmc_server.f90 @ 1780

Last change on this file since 1780 was 1780, checked in by raasch, 8 years ago
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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	!
17	! Copyright 1997-2015 Leibniz Universitaet Hannover
18	!--------------------------------------------------------------------------------!
19	!
20	! Current revisions:
21	! ------------------
22	!
23	!
24	! Former revisions:
25	! -----------------
26	! $Id: pmc_server.f90 1780 2016-03-03 08:39:40Z raasch $
27	!
28	! 1779 2016-03-03 08:01:28Z raasch
29	! kind=dp replaced by wp,
30	! error messages removed or changed to PALM style, dim_order removed
31	! array management changed from linked list to sequential loop
32	!
33	! 1766 2016-02-29 08:37:15Z raasch
34	! modifications to allow for using PALM's pointer version
35	! +new routine pmc_s_set_active_data_array
36	!
37	! 1764 2016-02-28 12:45:19Z raasch
38	! cpp-statement added (nesting can only be used in parallel mode)
39	!
40	! 1762 2016-02-25 12:31:13Z hellstea
41	! Initial revision by K. Ketelsen
42	!
43	! Description:
44	! ------------
45	!
46	! Server part of Palm Model Coupler
47	!------------------------------------------------------------------------------!
48
49	#if defined( __parallel )
50	use, intrinsic :: iso_c_binding
51
52	#if defined( __lc )
53	USE MPI
54	#else
55	INCLUDE "mpif.h"
56	#endif
57	USE kinds
58	USE PMC_general, ONLY: ClientDef, PMC_MAX_MODELL,PMC_sort, DA_NameDef, DA_Desclen, DA_Namelen, &
59	PMC_G_SetName, PeDef, ArrayDef, PMC_MAX_ARRAY
60	USE PMC_handle_communicator, ONLY: m_model_comm,m_model_rank,m_model_npes, m_to_client_comm, &
61	PMC_Server_for_Client, m_world_rank
62	USE PMC_MPI_wrapper, ONLY: PMC_Send_to_Client, PMC_Recv_from_Client, PMC_Bcast, PMC_Inter_Bcast, &
63	PMC_Alloc_mem, PMC_Time
64
65	IMPLICIT none
66	PRIVATE
67	SAVE
68
69	TYPE ClientIndexDef
70	INTEGER :: NrPoints
71	INTEGER,DIMENSION(:,:),allocatable :: index_list_2d
72	END TYPE ClientIndexDef
73
74	TYPE(ClientDef),DIMENSION(PMC_MAX_MODELL) :: Clients
75	TYPE(ClientIndexDef),DIMENSION(PMC_MAX_MODELL) :: indClients
76
77	INTEGER :: next_array_in_list = 0
78
79	PUBLIC PMC_Server_for_Client
80
81	INTERFACE PMC_ServerInit
82	MODULE procedure PMC_ServerInit
83	END INTERFACE PMC_ServerInit
84
85	INTERFACE PMC_S_Set_2D_index_list
86	MODULE procedure PMC_S_Set_2D_index_list
87	END INTERFACE PMC_S_Set_2D_index_list
88
89	INTERFACE PMC_S_clear_next_array_list
90	MODULE procedure PMC_S_clear_next_array_list
91	END INTERFACE PMC_S_clear_next_array_list
92
93	INTERFACE PMC_S_GetNextArray
94	MODULE procedure PMC_S_GetNextArray
95	END INTERFACE PMC_S_GetNextArray
96
97	INTERFACE PMC_S_Set_DataArray
98	MODULE procedure PMC_S_Set_DataArray_2d
99	MODULE procedure PMC_S_Set_DataArray_3d
100	END INTERFACE PMC_S_Set_DataArray
101
102	INTERFACE PMC_S_setInd_and_AllocMem
103	MODULE procedure PMC_S_setInd_and_AllocMem
104	END INTERFACE PMC_S_setInd_and_AllocMem
105
106	INTERFACE PMC_S_FillBuffer
107	MODULE procedure PMC_S_FillBuffer
108	END INTERFACE PMC_S_FillBuffer
109
110	INTERFACE PMC_S_GetData_from_Buffer
111	MODULE procedure PMC_S_GetData_from_Buffer
112	END INTERFACE PMC_S_GetData_from_Buffer
113
114	INTERFACE PMC_S_Set_Active_data_array
115	MODULE procedure PMC_S_Set_Active_data_array
116	END INTERFACE PMC_S_Set_Active_data_array
117
118	! PUBLIC section
119
120	PUBLIC PMC_ServerInit, PMC_S_Set_2D_index_list, PMC_S_GetNextArray, PMC_S_Set_DataArray
121	PUBLIC PMC_S_setInd_and_AllocMem, PMC_S_FillBuffer, PMC_S_GetData_from_Buffer, PMC_S_Set_Active_data_array
122	PUBLIC PMC_S_clear_next_array_list
123
124	CONTAINS
125
126	SUBROUTINE PMC_ServerInit
127	IMPLICIT none
128	INTEGER :: i
129	INTEGER :: j
130	INTEGER :: ClientId
131	INTEGER :: istat
132
133	do i=1,size(PMC_Server_for_Client)-1
134	if(m_model_comm == 0) write(0,*) 'PMC_Server: Initialize client Id',PMC_Server_for_Client(i)
135
136	ClientId = PMC_Server_for_Client(i)
137
138	Clients(ClientId)%model_comm = m_model_comm
139	Clients(ClientId)%inter_comm = m_to_client_comm(ClientId)
140
141	! Get rank and size
142	CALL MPI_Comm_rank (Clients(ClientId)%model_comm, Clients(ClientId)%model_rank, istat);
143	CALL MPI_Comm_size (Clients(ClientId)%model_comm, Clients(ClientId)%model_npes, istat);
144	CALL MPI_Comm_remote_size (Clients(ClientId)%inter_comm, Clients(ClientId)%inter_npes, istat);
145
146	! Intra communicater is used for MPI_Get
147	CALL MPI_Intercomm_merge (Clients(ClientId)%inter_comm, .false., Clients(ClientId)%intra_comm, istat);
148	CALL MPI_Comm_rank (Clients(ClientId)%intra_comm, Clients(ClientId)%intra_rank, istat);
149
150	write(9,*) 'ClientId ',i,ClientId,m_world_rank, Clients(ClientId)%inter_npes
151
152	ALLOCATE (Clients(ClientId)%PEs(Clients(ClientId)%inter_npes))
153	!
154	!-- Allocate for all client PEs an array of TYPE ArrayDef to store information of transfer array
155	do j=1,Clients(ClientId)%inter_npes
156	Allocate(Clients(ClientId)%PEs(j)%array_list(PMC_MAX_ARRAY))
157	end do
158
159	CALL Get_DA_names_from_client (ClientId)
160	end do
161
162	return
163	END SUBROUTINE PMC_ServerInit
164
165	SUBROUTINE PMC_S_Set_2D_index_list (ClientId, index_list)
166	IMPLICIT none
167	INTEGER,INTENT(IN) :: ClientId
168	INTEGER,DIMENSION(:,:),INTENT(INOUT) :: index_list !Index list will be modified in sort, therefore INOUT
169
170	!-- Local variables
171	INTEGER :: ip,is,ie,ian,ic,n
172	INTEGER :: istat
173
174	if(m_model_rank == 0) then
175	CALL PMC_sort (index_list, 6) ! Sort to ascending Server PE
176	is = 1
177
178	do ip=0,m_model_npes-1
179
180	! Split into Server PEs
181	ie = is-1 !there may be no entry for this PE
182	if(is <= size(index_list,2) .and. ie >= 0) then
183	do while ( index_list(6,ie+1) == ip)
184	ie = ie+1
185	if( ie == size(index_list,2)) EXIT
186	end do
187
188	ian = ie-is+1
189	else
190	is = -1
191	ie = -2
192	ian = 0
193	end if
194
195	! Send data to other server PEs
196
197	if(ip == 0) then
198	indClients(ClientId)%NrPoints = ian
199	if(ian > 0) then
200	ALLOCATE (indClients(ClientId)%index_list_2d(6,ian))
201	indClients(ClientId)%index_list_2d(:,1:ian) = index_list(:,is:ie)
202	end if
203	else
204	CALL MPI_Send (ian, 1, MPI_INTEGER, ip, 1000, m_model_comm, istat)
205	if(ian > 0) then
206	CALL MPI_Send (index_list(1,is), 6*ian, MPI_INTEGER, ip, 1001, &
207	m_model_comm, istat)
208	end if
209	end if
210	is = ie+1
211	end do
212	else
213	CALL MPI_Recv (indClients(ClientId)%NrPoints, 1, MPI_INTEGER, 0, 1000, m_model_comm, &
214	MPI_STATUS_IGNORE, istat)
215	ian = indClients(ClientId)%NrPoints
216	if(ian > 0) then
217	ALLOCATE(indClients(ClientId)%index_list_2d(6,ian))
218	CALL MPI_RECV (indClients(ClientId)%index_list_2d, 6*ian, MPI_INTEGER, 0, 1001, &
219	m_model_comm, MPI_STATUS_IGNORE, istat)
220	end if
221	end if
222
223	CALL Set_PE_index_list (ClientId,Clients(ClientId),indClients(ClientId)%index_list_2d,indClients(ClientId)%NrPoints)
224
225	return
226	END SUBROUTINE PMC_S_Set_2D_index_list
227
228	SUBROUTINE PMC_S_clear_next_array_list
229	IMPLICIT none
230
231	next_array_in_list = 0
232
233	return
234	END SUBROUTINE PMC_S_clear_next_array_list
235
236	! List handling is still required to get minimal interaction with pmc_interface
237	logical function PMC_S_GetNextArray (ClientId, myName)
238	INTEGER(iwp),INTENT(IN) :: ClientId
239	CHARACTER(len=*),INTENT(OUT) :: myName
240
241	!-- local variables
242	TYPE(PeDef),POINTER :: aPE
243	TYPE(ArrayDef),POINTER :: ar
244
245	next_array_in_list = next_array_in_list+1
246
247	!-- Array Names are the same on all client PE, so take first PE to get the name
248	aPE => Clients(ClientId)%PEs(1)
249
250	if(next_array_in_list > aPE%Nr_arrays) then
251	PMC_S_GetNextArray = .false. ! all arrays done
252	return
253	end if
254
255	ar => aPE%array_list(next_array_in_list)
256	myName = ar%name
257
258	PMC_S_GetNextArray = .true. ! Return true if legal array
259	return
260	END function PMC_S_GetNextArray
261
262	SUBROUTINE PMC_S_Set_DataArray_2d (ClientId, array, array_2 )
263
264	IMPLICIT none
265
266	INTEGER,INTENT(IN) :: ClientId
267	REAL(wp), INTENT(IN), DIMENSION(:,:) :: array
268	REAL(wp), INTENT(IN), DIMENSION(:,:), OPTIONAL :: array_2
269
270	INTEGER :: NrDims
271	INTEGER,DIMENSION (4) :: dims
272	TYPE(c_ptr) :: array_adr
273	TYPE(c_ptr) :: second_adr
274
275	dims = 1
276
277	NrDims = 2
278	dims(1) = size(array,1)
279	dims(2) = size(array,2)
280	array_adr = c_loc(array)
281
282	IF ( PRESENT( array_2 ) ) THEN
283	second_adr = c_loc(array_2)
284	CALL PMC_S_SetArray (ClientId, NrDims, dims, array_adr, second_adr = second_adr)
285	ELSE
286	CALL PMC_S_SetArray (ClientId, NrDims, dims, array_adr)
287	ENDIF
288
289	return
290	END SUBROUTINE PMC_S_Set_DataArray_2d
291
292	SUBROUTINE PMC_S_Set_DataArray_3d (ClientId, array, nz_cl, nz, array_2 )
293
294	IMPLICIT none
295
296	INTEGER,INTENT(IN) :: ClientId
297	REAL(wp), INTENT(IN), DIMENSION(:,:,:) :: array
298	REAL(wp), INTENT(IN), DIMENSION(:,:,:), OPTIONAL :: array_2
299	INTEGER,INTENT(IN) :: nz_cl
300	INTEGER,INTENT(IN) :: nz
301
302	INTEGER :: NrDims
303	INTEGER,DIMENSION (4) :: dims
304	TYPE(c_ptr) :: array_adr
305	TYPE(c_ptr) :: second_adr
306
307	dims = 1
308
309	dims = 0
310	NrDims = 3
311	dims(1) = size(array,1)
312	dims(2) = size(array,2)
313	dims(3) = size(array,3)
314	dims(4) = nz_cl+dims(1)-nz ! works for first dimension 1:nz and 0:nz+1
315
316	array_adr = c_loc(array)
317
318	!
319	!-- In PALM's pointer version, two indices have to be stored internally.
320	!-- The active address of the data array is set in swap_timelevel
321	IF ( PRESENT( array_2 ) ) THEN
322	second_adr = c_loc(array_2)
323	CALL PMC_S_SetArray (ClientId, NrDims, dims, array_adr, second_adr = second_adr)
324	ELSE
325	CALL PMC_S_SetArray (ClientId, NrDims, dims, array_adr)
326	ENDIF
327
328	return
329	END SUBROUTINE PMC_S_Set_DataArray_3d
330
331	SUBROUTINE PMC_S_setInd_and_AllocMem (ClientId)
332
333	USE control_parameters, &
334	ONLY: message_string
335
336	IMPLICIT none
337
338	INTEGER,INTENT(IN) :: ClientId
339
340	INTEGER :: i, istat, ierr, j
341	INTEGER :: arlen, myIndex, tag
342	INTEGER :: rCount ! count MPI requests
343	INTEGER(idp) :: bufsize ! Size of MPI data Window
344	TYPE(PeDef),POINTER :: aPE
345	TYPE(ArrayDef),POINTER :: ar
346	CHARACTER(len=DA_Namelen) :: myName
347	INTEGER,DIMENSION(1024) :: req
348	Type(c_ptr) :: base_ptr
349	REAL(kind=wp),DIMENSION(:),POINTER :: base_array
350	INTEGER(KIND=MPI_ADDRESS_KIND) :: WinSize
351
352	myIndex = 1
353	rCount = 0
354	bufsize = 8
355
356	! First stride, Compute size and set index
357
358	do i=1,Clients(ClientId)%inter_npes
359	aPE => Clients(ClientId)%PEs(i)
360	tag = 200
361	do j=1,aPE%Nr_arrays
362	ar => aPE%array_list(j)
363	if(ar%NrDims == 2) then
364	arlen = aPE%NrEle; ! 2D
365	else if(ar%NrDims == 3) then
366	arlen = aPE%NrEle * ar%A_dim(4); ! PALM 3D
367	else
368	arlen = -1
369	end if
370	ar%BufIndex = myIndex
371
372	tag = tag+1
373	rCount = rCount+1
374	CALL MPI_Isend (myIndex, 1, MPI_INTEGER, i-1, tag, Clients(ClientId)%inter_comm, req(rCount),ierr)
375
376	if(rCount == 1024) then ! Maximum of 1024 outstanding requests
377	CALL MPI_Waitall (rCount, req, MPI_STATUSES_IGNORE, ierr)
378	rCount = 0;
379	end if
380
381	myIndex = myIndex+arlen
382	bufsize = bufsize+arlen
383	ar%BufSize = arlen
384
385	end do
386	if(rCount > 0) then ! Wait for all send completed
387	CALL MPI_Waitall (rCount, req, MPI_STATUSES_IGNORE, ierr)
388	end if
389	end do
390
391	! Create RMA (One Sided Communication) window for data buffer
392
393	CALL PMC_Alloc_mem (base_array, bufsize, base_ptr)
394	Clients(ClientId)%TotalBufferSize = bufsize*wp !Total buffer size in Byte
395
396	WinSize = bufsize*wp
397	! write(9,*) 'PMC_S_SetInd_and_Mem ',m_model_rank,Clients(ClientId)%inter_npes,WinSize,bufsize
398	CALL MPI_Win_create (base_array, WinSize, wp, MPI_INFO_NULL, Clients(ClientId)%intra_comm, Clients(ClientId)%BufWin, ierr);
399	CALL MPI_Win_fence (0, Clients(ClientId)%BufWin, ierr); ! Open Window to set data
400	CALL MPI_Barrier(Clients(ClientId)%intra_comm, ierr)
401
402	! Second stride, Set Buffer pointer
403
404	do i=1,Clients(ClientId)%inter_npes
405	aPE => Clients(ClientId)%PEs(i)
406	do j=1,aPE%Nr_arrays
407	ar => aPE%array_list(j)
408	!-- TO_DO: Adressrechnung ueberlegen?
409	ar%SendBuf = c_loc(base_array(ar%BufIndex)) !kk Adressrechnung ueberlegen
410	if(ar%BufIndex+ar%BufSize > bufsize) then
411	!-- TO_DO: can this error really happen, and what can be the reason?
412	write(0,'(a,i4,4i7,1x,a)') 'Buffer too small ',i,ar%BufIndex,ar%BufSize,ar%BufIndex+ar%BufSize,bufsize,trim(ar%name)
413	CALL MPI_Abort (MPI_COMM_WORLD, istat, ierr)
414	end if
415	end do
416	end do
417
418	return
419	END SUBROUTINE PMC_S_setInd_and_AllocMem
420
421	SUBROUTINE PMC_S_FillBuffer (ClientId, WaitTime)
422	IMPLICIT none
423	INTEGER,INTENT(IN) :: ClientId
424	REAL(wp), INTENT(OUT), OPTIONAL :: WaitTime
425
426	INTEGER :: ip,ij,istat,ierr,j
427	INTEGER :: myIndex
428	REAL(wp) :: t1,t2
429	TYPE(PeDef),POINTER :: aPE
430	TYPE(ArrayDef),POINTER :: ar
431	CHARACTER(len=DA_Namelen) :: myName
432	INTEGER,DIMENSION(1) :: buf_shape
433	REAL(wp), POINTER, DIMENSION(:) :: buf
434	REAL(wp), POINTER, DIMENSION(:,:) :: data_2d
435	REAL(wp), POINTER, DIMENSION(:,:,:) :: data_3d
436
437	t1 = PMC_Time()
438	CALL MPI_Barrier(Clients(ClientId)%intra_comm, ierr) ! Wait for buffer empty
439	t2 = PMC_Time()
440	if(present(WaitTime)) WaitTime = t2-t1
441
442	do ip=1,Clients(ClientId)%inter_npes
443	aPE => Clients(ClientId)%PEs(ip)
444	do j=1,aPE%Nr_arrays
445	ar => aPE%array_list(j)
446	myIndex=1
447	if(ar%NrDims == 2) then
448	buf_shape(1) = aPE%NrEle
449	CALL c_f_pointer(ar%SendBuf, buf, buf_shape)
450	CALL c_f_pointer(ar%data, data_2d, ar%A_dim(1:2))
451	do ij=1,aPE%NrEle
452	buf(myIndex) = data_2d(aPE%locInd(ij)%j,aPE%locInd(ij)%i)
453	myIndex = myIndex+1
454	end do
455	else if(ar%NrDims == 3) then
456	buf_shape(1) = aPE%NrEle*ar%A_dim(4)
457	CALL c_f_pointer(ar%SendBuf, buf, buf_shape)
458	CALL c_f_pointer(ar%data, data_3d, ar%A_dim(1:3))
459	do ij=1,aPE%NrEle
460	buf(myIndex:myIndex+ar%A_dim(4)-1) = data_3d(1:ar%A_dim(4),aPE%locInd(ij)%j,aPE%locInd(ij)%i)
461	myIndex = myIndex+ar%A_dim(4)
462	end do
463	end if
464	end do
465	end do
466
467	CALL MPI_Barrier(Clients(ClientId)%intra_comm, ierr) ! buffer is full
468
469	return
470	END SUBROUTINE PMC_S_FillBuffer
471
472	SUBROUTINE PMC_S_GetData_from_Buffer (ClientId, WaitTime)
473
474	IMPLICIT none
475
476	INTEGER,INTENT(IN) :: ClientId
477	REAL(wp), INTENT(OUT), OPTIONAL :: WaitTime
478
479	!-- local variables
480	INTEGER :: ip,ij,istat,ierr,j
481	INTEGER :: myIndex
482	REAL(wp) :: t1,t2
483	TYPE(PeDef),POINTER :: aPE
484	TYPE(ArrayDef),POINTER :: ar
485	CHARACTER(len=DA_Namelen) :: myName
486	INTEGER,DIMENSION(1) :: buf_shape
487	REAL(wp), POINTER, DIMENSION(:) :: buf
488	REAL(wp), POINTER, DIMENSION(:,:) :: data_2d
489	REAL(wp), POINTER, DIMENSION(:,:,:) :: data_3d
490
491	t1 = PMC_Time()
492	CALL MPI_Barrier(Clients(ClientId)%intra_comm, ierr) ! Wait for MPI_Put from client
493	t2 = PMC_Time()
494	if(present(WaitTime)) WaitTime = t2-t1
495
496	do ip=1,Clients(ClientId)%inter_npes
497	aPE => Clients(ClientId)%PEs(ip)
498	do j=1,aPE%Nr_arrays
499	ar => aPE%array_list(j)
500	myIndex=1
501	if(ar%NrDims == 2) then
502	buf_shape(1) = aPE%NrEle
503	CALL c_f_pointer(ar%SendBuf, buf, buf_shape)
504	CALL c_f_pointer(ar%data, data_2d, ar%A_dim(1:2))
505	do ij=1,aPE%NrEle
506	data_2d(aPE%locInd(ij)%j,aPE%locInd(ij)%i) = buf(myIndex)
507	myIndex = myIndex+1
508	end do
509	else if(ar%NrDims == 3) then
510	buf_shape(1) = aPE%NrEle*ar%A_dim(4)
511	CALL c_f_pointer(ar%SendBuf, buf, buf_shape)
512	CALL c_f_pointer(ar%data, data_3d, ar%A_dim(1:3))
513	do ij=1,aPE%NrEle
514	data_3d(1:ar%A_dim(4),aPE%locInd(ij)%j,aPE%locInd(ij)%i) = buf(myIndex:myIndex+ar%A_dim(4)-1)
515	myIndex = myIndex+ar%A_dim(4)
516	end do
517	end if
518	end do
519	end do
520
521	CALL MPI_Barrier(Clients(ClientId)%intra_comm, ierr) ! data copy finished, buffer is free for use agein
522
523	return
524	END SUBROUTINE PMC_S_GetData_from_Buffer
525
526	! Private SUBROUTINEs
527
528	SUBROUTINE Get_DA_names_from_client (ClientId)
529	IMPLICIT none
530	INTEGER,INTENT(IN) :: ClientId
531	!-- local variables
532	type(DA_NameDef) :: myName
533
534	! Get Data Array Description and Name from Client
535
536	do
537	CALL PMC_Bcast ( myName%couple_index, 0, comm=m_to_client_comm(ClientId))
538	if(myName%couple_index == -1) EXIT
539	CALL PMC_Bcast ( myName%ServerDesc, 0, comm=m_to_client_comm(ClientId))
540	CALL PMC_Bcast ( myName%NameOnServer, 0, comm=m_to_client_comm(ClientId))
541	CALL PMC_Bcast ( myName%ClientDesc, 0, comm=m_to_client_comm(ClientId))
542	CALL PMC_Bcast ( myName%NameOnClient, 0, comm=m_to_client_comm(ClientId))
543
544	CALL PMC_G_SetName (clients(ClientID), myName%couple_index, myName%NameOnServer )
545	end do
546
547	return
548	END SUBROUTINE Get_DA_names_from_client
549
550	SUBROUTINE PMC_S_SetArray (ClientId, NrDims, dims, array_adr, second_adr)
551	IMPLICIT none
552
553	INTEGER,INTENT(IN) :: ClientId
554	INTEGER,INTENT(IN) :: NrDims
555	INTEGER,INTENT(IN),DIMENSION(:) :: dims
556	TYPE(c_ptr),INTENT(IN) :: array_adr
557	TYPE(c_ptr),INTENT(IN),OPTIONAL :: second_adr
558
559	INTEGER :: i
560	TYPE(PeDef),POINTER :: aPE
561	TYPE(ArrayDef),POINTER :: ar
562	CHARACTER(len=DA_Namelen) :: myName
563
564	! Set Array for Client interPE 0
565
566	do i=1,Clients(ClientId)%inter_npes
567	aPE => Clients(ClientId)%PEs(i)
568	ar => aPE%array_list(next_array_in_list)
569	ar%NrDims = NrDims
570	ar%A_dim = dims
571	ar%data = array_adr
572	if(present(second_adr)) then
573	ar%po_data(1) = array_adr
574	ar%po_data(2) = second_adr
575	else
576	ar%po_data(1) = C_NULL_PTR
577	ar%po_data(2) = C_NULL_PTR
578	end if
579	end do
580
581	return
582	END SUBROUTINE PMC_S_SetArray
583
584
585	SUBROUTINE PMC_S_Set_Active_data_array (ClientId,iactive)
586	IMPLICIT none
587
588	INTEGER,INTENT(IN) :: ClientId
589	INTEGER,INTENT(IN) :: iactive
590
591	!-- local variables
592	INTEGER :: i, ip, j
593	TYPE(PeDef),POINTER :: aPE
594	TYPE(ArrayDef),POINTER :: ar
595	CHARACTER(len=DA_Namelen) :: myName
596
597	do ip=1,Clients(ClientId)%inter_npes
598	aPE => Clients(ClientId)%PEs(ip)
599	do j=1,aPE%Nr_arrays
600	ar => aPE%array_list(j)
601	if(iactive == 1 .OR. iactive == 2) then
602	ar%data = ar%po_data(iactive)
603	end if
604	end do
605	end do
606
607	return
608	END SUBROUTINE PMC_S_Set_Active_data_array
609
610
611	SUBROUTINE Set_PE_index_list (ClientId, myClient,index_list,NrP)
612	IMPLICIT none
613
614	INTEGER,INTENT(IN) :: ClientId
615	TYPE(ClientDef),INTENT(INOUT) :: myClient
616	INTEGER,INTENT(IN),DIMENSION(:,:) :: index_list
617	INTEGER,INTENT(IN) :: NrP
618
619	!-- local variables
620	INTEGER :: i,j,ind,ierr,i2
621	TYPE(PeDef),POINTER :: aPE
622	INTEGER :: RemPE
623	INTEGER,DIMENSION(myClient%inter_npes) :: RemInd
624	INTEGER,DIMENSION(:),POINTER :: RemIndw
625	INTEGER,DIMENSION(:),POINTER :: RLdef
626	INTEGER(KIND=MPI_ADDRESS_KIND) :: WinSize
627	INTEGER :: indWin,indWin2
628
629	! First, count entries for every remote client PE
630
631	do i=1,myClient%inter_npes
632	aPE => myClient%PEs(i)
633	aPE%NrEle = 0
634	end do
635
636	do j=1,NrP ! loop over number of cells coarse grid
637	RemPE = index_list(5,j)+1 ! Pe number remote PE
638	aPE => myClient%PEs(RemPE)
639	aPE% NrEle = aPE% NrEle+1 ! Increment Number of elements for this client Pe
640	end do
641
642	do i=1,myClient%inter_npes
643	aPE => myClient%PEs(i)
644	ALLOCATE(aPE%locInd(aPE%NrEle))
645	end do
646
647	RemInd = 0
648
649	! Second, Create lists
650
651	do j=1,NrP ! loop over number of cells coarse grid
652	RemPE = index_list(5,j)+1 ! Pe number remote PE
653	aPE => myClient%PEs(RemPE)
654	RemInd(RemPE) = RemInd(RemPE)+1
655	ind = RemInd(RemPE)
656	aPE%locInd(ind)%i = index_list(1,j)
657	aPE%locInd(ind)%j = index_list(2,j)
658	end do
659
660	! Prepare Number of Elements for Client PEs
661	CALL PMC_Alloc_mem (RLdef, myClient%inter_npes*2)
662	WinSize = myClient%inter_npesc_sizeof(i)2 ! Number of Client PEs * size of INTEGER (i just arbitrary INTEGER)
663
664	CALL MPI_Win_create (RLdef, WinSize, iwp, MPI_INFO_NULL, myClient%intra_comm, indWin, ierr);
665	CALL MPI_Win_fence (0, indWin, ierr); ! Open Window to set data
666
667	RLdef(1) = 0 ! Index on Remote PE 0
668	RLdef(2) = RemInd(1) ! Number of Elements on Rem PE 0
669
670	do i=2,myClient%inter_npes ! Reserve Buffer for index array
671	i2 = (i-1)*2+1
672	RLdef(i2) = RLdef(i2-2) + RLdef(i2-1)*2 ! Index on Remote PE
673	RLdef(i2+1) = RemInd(i) ! Number of Elements on Remote PE
674	end do
675
676	CALL MPI_Win_fence (0, indWin, ierr); ! Close Window to allow client to access data
677	CALL MPI_Win_fence (0, indWin, ierr); ! Client has retrieved data
678
679	i2 = 2*myClient%inter_npes-1
680	WinSize = (RLdef(i2)+RLdef(i2+1))*2
681	WinSize = max(WinSize,1) ! Make sure, MPI_Alloc_mem works
682
683	CALL PMC_Alloc_mem (RemIndw, int(WinSize))
684
685	CALL MPI_Barrier (m_model_comm, ierr)
686	CALL MPI_Win_create (RemIndw, WinSize*c_sizeof(i), iwp, MPI_INFO_NULL, myClient%intra_comm, indWin2, ierr);
687
688	CALL MPI_Win_fence (0, indWin2, ierr); ! Open Window to set data
689	do j=1,NrP ! this loop creates the 2D index list
690	RemPE = index_list(5,j)+1 ! Pe number remote PE
691	aPE => myClient%PEs(RemPE)
692	i2 = RemPE*2-1
693	ind = RLdef(i2)+1
694	RemIndw(ind) = index_list(3,j)
695	RemIndw(ind+1) = index_list(4,j)
696	RLdef(i2) = RLdef(i2)+2
697	end do
698	CALL MPI_Win_fence (0, indWin2, ierr); !all data set
699
700	CALL MPI_Barrier(myClient%intra_comm, ierr) ! Dont know why, but this barrier is necessary before we can free the windows
701
702	CALL MPI_Win_free(indWin, ierr)
703	CALL MPI_Win_free(indWin2, ierr)
704
705	! Sollte funktionieren, Problem mit MPI implementation
706	! https://www.lrz.de/services/software/parallel/mpi/onesided
707	! CALL MPI_Free_mem (RemIndw, ierr)
708
709	return
710	END SUBROUTINE Set_PE_index_list
711
712	#endif
713	END MODULE pmc_server

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