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source: palm/trunk/SOURCE/pmc_server.f90 @ 1779

Last change on this file since 1779 was 1779, checked in by raasch, 8 years ago
pmc array management changed from linked list to sequential loop; further small changes and cosmetics for the pmc
Property svn:keywords set to `Id`
File size: 26.4 KB

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

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