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source: palm/trunk/SOURCE/pmc_parent_mod.f90 @ 3245

Last change on this file since 3245 was 3241, checked in by raasch, 6 years ago
various changes to avoid compiler warnings (mainly removal of unused variables)
Property svn:keywords set to `Id`
File size: 34.9 KB

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1	MODULE pmc_parent
2
3	!------------------------------------------------------------------------------!
4	! This file is part of the PALM model system.
5	!
6	! PALM is free software: you can redistribute it and/or modify it under the
7	! terms of the GNU General Public License as published by the Free Software
8	! Foundation, either version 3 of the License, or (at your option) any later
9	! version.
10	!
11	! PALM is distributed in the hope that it will be useful, but WITHOUT ANY
12	! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
13	! A PARTICULAR PURPOSE. See the GNU General Public License for more details.
14	!
15	! You should have received a copy of the GNU General Public License along with
16	! PALM. If not, see <http://www.gnu.org/licenses/>.
17	!
18	! Copyright 1997-2018 Leibniz Universitaet Hannover
19	!------------------------------------------------------------------------------!
20	!
21	! Current revisions:
22	! ------------------
23	!
24	!
25	! Former revisions:
26	! -----------------
27	! $Id: pmc_parent_mod.f90 3241 2018-09-12 15:02:00Z knoop $
28	! unused variables removed
29	!
30	! 3182 2018-07-27 13:36:03Z suehring
31	! Comment extended
32	!
33	! 2841 2018-02-27 15:02:57Z Giersch
34	! Bugfix: wrong placement of include 'mpif.h' corrected
35	!
36	! 2809 2018-02-15 09:55:58Z schwenkel
37	! Bugfix for gfortran: Replace the function C_SIZEOF with STORAGE_SIZE
38	!
39	! 2801 2018-02-14 16:01:55Z thiele
40	! Introduce particle transfer in nested models.
41	!
42	! 2718 2018-01-02 08:49:38Z maronga
43	! Corrected "Former revisions" section
44	!
45	! 2696 2017-12-14 17:12:51Z kanani
46	! Change in file header (GPL part)
47	!
48	! 2599 2017-11-01 13:18:45Z hellstea
49	! Some cleanup and commenting improvements only.
50	!
51	! 2101 2017-01-05 16:42:31Z suehring
52	!
53	! 2000 2016-08-20 18:09:15Z knoop
54	! Forced header and separation lines into 80 columns
55	!
56	! 1938 2016-06-13 15:26:05Z hellstea
57	! Minor clean up.
58	!
59	! 1901 2016-05-04 15:39:38Z raasch
60	! Module renamed. Code clean up. The words server/client changed to parent/child.
61	!
62	! 1900 2016-05-04 15:27:53Z raasch
63	! re-formatted to match PALM style
64	!
65	! 1850 2016-04-08 13:29:27Z maronga
66	! Module renamed
67	!
68	!
69	! 1833 2016-04-07 14:23:03Z raasch
70	! gfortran requires pointer attributes for some array declarations,
71	! long line wrapped
72	!
73	! 1808 2016-04-05 19:44:00Z raasch
74	! MPI module used by default on all machines
75	!
76	! 1797 2016-03-21 16:50:28Z raasch
77	! introduction of different datatransfer modes
78	!
79	! 1791 2016-03-11 10:41:25Z raasch
80	! Debug write-statements commented out
81	!
82	! 1786 2016-03-08 05:49:27Z raasch
83	! change in child-parent data transfer: parent now gets data from child
84	! instead that child put's it to the parent
85	!
86	! 1779 2016-03-03 08:01:28Z raasch
87	! kind=dp replaced by wp,
88	! error messages removed or changed to PALM style, dim_order removed
89	! array management changed from linked list to sequential loop
90	!
91	! 1766 2016-02-29 08:37:15Z raasch
92	! modifications to allow for using PALM's pointer version
93	! +new routine pmc_s_set_active_data_array
94	!
95	! 1764 2016-02-28 12:45:19Z raasch
96	! cpp-statement added (nesting can only be used in parallel mode)
97	!
98	! 1762 2016-02-25 12:31:13Z hellstea
99	! Initial revision by K. Ketelsen
100	!
101	! Description:
102	! ------------
103	!
104	! Parent part of Palm Model Coupler
105	!------------------------------------------------------------------------------!
106
107	#if defined( __parallel )
108	USE, INTRINSIC :: ISO_C_BINDING
109
110	#if !defined( __mpifh )
111	USE MPI
112	#endif
113	USE kinds
114	USE pmc_general, &
115	ONLY: arraydef, childdef, da_namedef, da_namelen, pedef, &
116	pmc_g_setname, pmc_max_array, pmc_max_models, pmc_sort
117
118	USE pmc_handle_communicator, &
119	ONLY: m_model_comm,m_model_rank,m_model_npes, m_to_child_comm, &
120	m_world_rank, pmc_parent_for_child
121
122	USE pmc_mpi_wrapper, &
123	ONLY: pmc_alloc_mem, pmc_bcast, pmc_time
124
125	IMPLICIT NONE
126
127	#if defined( __mpifh )
128	INCLUDE "mpif.h"
129	#endif
130
131	PRIVATE
132	SAVE
133
134	TYPE childindexdef
135	INTEGER :: nrpoints !<
136	INTEGER, DIMENSION(:,:), ALLOCATABLE :: index_list_2d !<
137	END TYPE childindexdef
138
139	TYPE(childdef), DIMENSION(pmc_max_models),PUBLIC :: children !<
140	TYPE(childindexdef), DIMENSION(pmc_max_models) :: indchildren !<
141
142	INTEGER :: next_array_in_list = 0 !<
143
144
145	PUBLIC pmc_parent_for_child
146
147
148	INTERFACE pmc_parentinit
149	MODULE PROCEDURE pmc_parentinit
150	END INTERFACE pmc_parentinit
151
152	INTERFACE pmc_s_set_2d_index_list
153	MODULE PROCEDURE pmc_s_set_2d_index_list
154	END INTERFACE pmc_s_set_2d_index_list
155
156	INTERFACE pmc_s_clear_next_array_list
157	MODULE PROCEDURE pmc_s_clear_next_array_list
158	END INTERFACE pmc_s_clear_next_array_list
159
160	INTERFACE pmc_s_getnextarray
161	MODULE PROCEDURE pmc_s_getnextarray
162	END INTERFACE pmc_s_getnextarray
163
164	INTERFACE pmc_s_set_dataarray
165	MODULE PROCEDURE pmc_s_set_dataarray_2d
166	MODULE PROCEDURE pmc_s_set_dataarray_3d
167	MODULE PROCEDURE pmc_s_set_dataarray_ip2d
168	END INTERFACE pmc_s_set_dataarray
169
170	INTERFACE pmc_s_setind_and_allocmem
171	MODULE PROCEDURE pmc_s_setind_and_allocmem
172	END INTERFACE pmc_s_setind_and_allocmem
173
174	INTERFACE pmc_s_fillbuffer
175	MODULE PROCEDURE pmc_s_fillbuffer
176	END INTERFACE pmc_s_fillbuffer
177
178	INTERFACE pmc_s_getdata_from_buffer
179	MODULE PROCEDURE pmc_s_getdata_from_buffer
180	END INTERFACE pmc_s_getdata_from_buffer
181
182	INTERFACE pmc_s_set_active_data_array
183	MODULE PROCEDURE pmc_s_set_active_data_array
184	END INTERFACE pmc_s_set_active_data_array
185
186	INTERFACE pmc_s_get_child_npes
187	MODULE PROCEDURE pmc_s_get_child_npes
188	END INTERFACE pmc_s_get_child_npes
189
190	PUBLIC pmc_parentinit, pmc_s_clear_next_array_list, pmc_s_fillbuffer, &
191	pmc_s_getdata_from_buffer, pmc_s_getnextarray, &
192	pmc_s_setind_and_allocmem, pmc_s_set_active_data_array, &
193	pmc_s_set_dataarray, pmc_s_set_2d_index_list, &
194	pmc_s_get_child_npes
195
196	CONTAINS
197
198
199	SUBROUTINE pmc_parentinit
200
201	IMPLICIT NONE
202
203	INTEGER(iwp) :: childid !<
204	INTEGER(iwp) :: i !<
205	INTEGER(iwp) :: j !<
206	INTEGER(iwp) :: istat !<
207
208	DO i = 1, SIZE( pmc_parent_for_child )-1
209
210	childid = pmc_parent_for_child( i )
211
212	children(childid)%model_comm = m_model_comm
213	children(childid)%inter_comm = m_to_child_comm(childid)
214
215	!
216	!-- Get rank and size
217	CALL MPI_COMM_RANK( children(childid)%model_comm, &
218	children(childid)%model_rank, istat )
219	CALL MPI_COMM_SIZE( children(childid)%model_comm, &
220	children(childid)%model_npes, istat )
221	CALL MPI_COMM_REMOTE_SIZE( children(childid)%inter_comm, &
222	children(childid)%inter_npes, istat )
223	!
224	!-- Intra communicator is used for MPI_GET
225	CALL MPI_INTERCOMM_MERGE( children(childid)%inter_comm, .FALSE., &
226	children(childid)%intra_comm, istat )
227	CALL MPI_COMM_RANK( children(childid)%intra_comm, &
228	children(childid)%intra_rank, istat )
229
230	ALLOCATE( children(childid)%pes(children(childid)%inter_npes))
231	!
232	!-- Allocate array of TYPE arraydef for all child PEs to store information
233	!-- of the transfer array
234	DO j = 1, children(childid)%inter_npes
235	ALLOCATE( children(childid)%pes(j)%array_list(pmc_max_array) )
236	ENDDO
237
238	CALL get_da_names_from_child (childid)
239
240	ENDDO
241
242	END SUBROUTINE pmc_parentinit
243
244
245
246	SUBROUTINE pmc_s_set_2d_index_list( childid, index_list )
247
248	IMPLICIT NONE
249
250	INTEGER(iwp), INTENT(IN) :: childid !<
251	INTEGER(iwp), DIMENSION(:,:), INTENT(INOUT) :: index_list !<
252
253	INTEGER(iwp) :: ian !<
254	INTEGER(iwp) :: ie !<
255	INTEGER(iwp) :: ip !<
256	INTEGER(iwp) :: is !<
257	INTEGER(iwp) :: istat !<
258
259
260	IF ( m_model_rank == 0 ) THEN
261	!
262	!-- Sort to ascending parent process order
263	CALL pmc_sort( index_list, 6 )
264	is = 1
265	DO ip = 0, m_model_npes-1
266	!
267	!-- Split into parent processes
268	ie = is - 1
269	!
270	!-- There may be no entry for this process
271	IF ( is <= SIZE( index_list,2 ) .AND. ie >= 0 ) THEN
272	DO WHILE ( index_list(6,ie+1 ) == ip )
273	ie = ie + 1
274	IF ( ie == SIZE( index_list,2 ) ) EXIT
275	ENDDO
276	ian = ie - is + 1
277	ELSE
278	is = -1
279	ie = -2
280	ian = 0
281	ENDIF
282	!
283	!-- Send data to other parent processes
284	IF ( ip == 0 ) THEN
285	indchildren(childid)%nrpoints = ian
286	IF ( ian > 0) THEN
287	ALLOCATE( indchildren(childid)%index_list_2d(6,ian) )
288	indchildren(childid)%index_list_2d(:,1:ian) = &
289	index_list(:,is:ie)
290	ENDIF
291	ELSE
292	CALL MPI_SEND( ian, 1, MPI_INTEGER, ip, 1000, m_model_comm, &
293	istat )
294	IF ( ian > 0) THEN
295	CALL MPI_SEND( index_list(1,is), 6*ian, MPI_INTEGER, ip, &
296	1001, m_model_comm, istat )
297	ENDIF
298	ENDIF
299	is = ie + 1
300	ENDDO
301	ELSE
302	CALL MPI_RECV( indchildren(childid)%nrpoints, 1, MPI_INTEGER, 0, 1000, &
303	m_model_comm, MPI_STATUS_IGNORE, istat )
304	ian = indchildren(childid)%nrpoints
305	IF ( ian > 0 ) THEN
306	ALLOCATE( indchildren(childid)%index_list_2d(6,ian) )
307	CALL MPI_RECV( indchildren(childid)%index_list_2d, 6*ian, &
308	MPI_INTEGER, 0, 1001, m_model_comm, &
309	MPI_STATUS_IGNORE, istat)
310	ENDIF
311	ENDIF
312	CALL set_pe_index_list( childid, children(childid), &
313	indchildren(childid)%index_list_2d, &
314	indchildren(childid)%nrpoints )
315
316	END SUBROUTINE pmc_s_set_2d_index_list
317
318
319
320	SUBROUTINE pmc_s_clear_next_array_list
321
322	IMPLICIT NONE
323
324	next_array_in_list = 0
325
326	END SUBROUTINE pmc_s_clear_next_array_list
327
328
329
330	LOGICAL FUNCTION pmc_s_getnextarray( childid, myname )
331
332	!
333	!-- Althoug there are no linked lists any more in PMC, this call still looks like working with a list
334
335	CHARACTER(LEN=*), INTENT(OUT) :: myname !<
336	INTEGER(iwp), INTENT(IN) :: childid !<
337
338	TYPE(arraydef), POINTER :: ar
339	TYPE(pedef), POINTER :: ape
340
341	next_array_in_list = next_array_in_list + 1
342	!
343	!-- Array names are the same on all children processes, so take first
344	!-- process to get the name
345	ape => children(childid)%pes(1)
346
347	IF ( next_array_in_list > ape%nr_arrays ) THEN
348	!
349	!-- All arrays are done
350	pmc_s_getnextarray = .FALSE.
351	RETURN
352	ENDIF
353
354	ar => ape%array_list(next_array_in_list)
355	myname = ar%name
356	!
357	!-- Return true if there is still an array in the list
358
359	pmc_s_getnextarray = .TRUE.
360
361	END FUNCTION pmc_s_getnextarray
362
363
364
365	SUBROUTINE pmc_s_set_dataarray_2d( childid, array, array_2 )
366
367	IMPLICIT NONE
368
369	INTEGER(iwp), INTENT(IN) :: childid !<
370
371	REAL(wp), INTENT(IN), DIMENSION(:,:), POINTER :: array !<
372	REAL(wp), INTENT(IN), DIMENSION(:,:), POINTER, OPTIONAL :: array_2 !<
373
374	INTEGER(iwp) :: nrdims !<
375	INTEGER(iwp), DIMENSION(4) :: dims !<
376	TYPE(C_PTR) :: array_adr !<
377	TYPE(C_PTR) :: second_adr !<
378
379
380	dims = 1
381	nrdims = 2
382	dims(1) = SIZE( array,1 )
383	dims(2) = SIZE( array,2 )
384	array_adr = C_LOC( array )
385
386	IF ( PRESENT( array_2 ) ) THEN
387	second_adr = C_LOC(array_2)
388	CALL pmc_s_setarray( childid, nrdims, dims, array_adr, &
389	second_adr = second_adr)
390	ELSE
391	CALL pmc_s_setarray( childid, nrdims, dims, array_adr )
392	ENDIF
393
394	END SUBROUTINE pmc_s_set_dataarray_2d
395
396	SUBROUTINE pmc_s_set_dataarray_ip2d( childid, array )
397
398	IMPLICIT NONE
399
400	INTEGER(iwp),INTENT(IN) :: childid !<
401
402	INTEGER(idp), INTENT(IN), DIMENSION(:,:), POINTER :: array !<
403
404	INTEGER(iwp) :: nrdims !<
405	INTEGER(iwp), DIMENSION(4) :: dims !<
406	TYPE(C_PTR) :: array_adr !<
407
408
409	dims = 1
410	nrdims = 2
411	dims(1) = SIZE( array,1 )
412	dims(2) = SIZE( array,2 )
413	array_adr = C_LOC( array )
414
415	CALL pmc_s_setarray( childid, nrdims, dims, array_adr , dimkey=22)
416
417	END SUBROUTINE pmc_s_set_dataarray_ip2d
418
419
420	SUBROUTINE pmc_s_set_dataarray_3d( childid, array, nz_cl, nz, array_2 )
421
422	IMPLICIT NONE
423
424	INTEGER(iwp), INTENT(IN) :: childid !<
425	INTEGER(iwp), INTENT(IN) :: nz !<
426	INTEGER(iwp), INTENT(IN) :: nz_cl !<
427
428	REAL(wp), INTENT(IN), DIMENSION(:,:,:), POINTER :: array !<
429	REAL(wp), INTENT(IN), DIMENSION(:,:,:), POINTER, OPTIONAL :: array_2 !<
430
431	INTEGER(iwp) :: nrdims !<
432	INTEGER(iwp), DIMENSION(4) :: dims !<
433	TYPE(C_PTR) :: array_adr !<
434	TYPE(C_PTR) :: second_adr !<
435
436	nrdims = 3
437	dims(1) = SIZE( array,1 )
438	dims(2) = SIZE( array,2 )
439	dims(3) = SIZE( array,3 )
440	dims(4) = nz_cl+dims(1)-nz ! works for first dimension 1:nz and 0:nz+1
441
442	array_adr = C_LOC(array)
443	!
444	!-- In PALM's pointer version, two indices have to be stored internally.
445	!-- The active address of the data array is set in swap_timelevel.
446	IF ( PRESENT( array_2 ) ) THEN
447	second_adr = C_LOC( array_2 )
448	CALL pmc_s_setarray( childid, nrdims, dims, array_adr, &
449	second_adr = second_adr)
450	ELSE
451	CALL pmc_s_setarray( childid, nrdims, dims, array_adr )
452	ENDIF
453
454	END SUBROUTINE pmc_s_set_dataarray_3d
455
456
457
458	SUBROUTINE pmc_s_setind_and_allocmem( childid )
459
460	USE control_parameters, &
461	ONLY: message_string
462
463	IMPLICIT NONE
464
465	!
466	!-- Naming convention for appendices: _pc -> parent to child transfer
467	!-- _cp -> child to parent transfer
468	!-- send -> parent to child transfer
469	!-- recv -> child to parent transfer
470	INTEGER(iwp), INTENT(IN) :: childid !<
471
472	INTEGER(iwp) :: arlen !<
473	INTEGER(iwp) :: i !<
474	INTEGER(iwp) :: ierr !<
475	INTEGER(iwp) :: j !<
476	INTEGER(iwp) :: myindex !<
477	INTEGER(iwp) :: rcount !< count MPI requests
478	INTEGER(iwp) :: tag !<
479
480	INTEGER(idp) :: bufsize !< size of MPI data window
481	INTEGER(KIND=MPI_ADDRESS_KIND) :: winsize !<
482
483	INTEGER(iwp), DIMENSION(1024) :: req !<
484
485	TYPE(C_PTR) :: base_ptr !<
486	TYPE(pedef), POINTER :: ape !<
487	TYPE(arraydef), POINTER :: ar !<
488
489	REAL(wp),DIMENSION(:), POINTER, SAVE :: base_array_pc !< base array for parent to child transfer
490	REAL(wp),DIMENSION(:), POINTER, SAVE :: base_array_cp !< base array for child to parent transfer
491
492	!
493	!-- Parent to child direction
494	myindex = 1
495	rcount = 0
496	bufsize = 8
497	!
498	!-- First stride: compute size and set index
499	DO i = 1, children(childid)%inter_npes
500
501	ape => children(childid)%pes(i)
502	tag = 200
503
504	DO j = 1, ape%nr_arrays
505
506	ar => ape%array_list(j)
507	IF ( ar%nrdims == 2 ) THEN
508	arlen = ape%nrele
509	ELSEIF ( ar%nrdims == 3 ) THEN
510	arlen = ape%nrele * ar%a_dim(4)
511	ELSE
512	arlen = -1
513	ENDIF
514	ar%sendindex = myindex
515
516	tag = tag + 1
517	rcount = rcount + 1
518	CALL MPI_ISEND( myindex, 1, MPI_INTEGER, i-1, tag, &
519	children(childid)%inter_comm, req(rcount), ierr )
520	!
521	!-- Maximum of 1024 pending requests
522
523	IF ( rcount == 1024 ) THEN
524	CALL MPI_WAITALL( rcount, req, MPI_STATUSES_IGNORE, ierr )
525	rcount = 0
526	ENDIF
527
528	myindex = myindex + arlen
529	bufsize = bufsize + arlen
530	ar%sendsize = arlen
531	ENDDO
532
533	IF ( rcount > 0 ) THEN
534	CALL MPI_WAITALL( rcount, req, MPI_STATUSES_IGNORE, ierr )
535	ENDIF
536
537	ENDDO
538	!
539	!-- Create RMA (One Sided Communication) window for data buffer parent to
540	!-- child transfer.
541	!-- The buffer of MPI_GET (counterpart of transfer) can be PE-local, i.e.
542	!-- it can but must not be part of the MPI RMA window. Only one RMA window is
543	!-- required to prepare the data for
544	!-- parent -> child transfer on the parent side
545	!-- and for
546	!-- child -> parent transfer on the child side
547	CALL pmc_alloc_mem( base_array_pc, bufsize )
548	children(childid)%totalbuffersize = bufsize * wp
549
550	winsize = bufsize * wp
551	CALL MPI_WIN_CREATE( base_array_pc, winsize, wp, MPI_INFO_NULL, &
552	children(childid)%intra_comm, &
553	children(childid)%win_parent_child, ierr )
554	!
555	!-- Open window to set data
556	CALL MPI_WIN_FENCE( 0, children(childid)%win_parent_child, ierr )
557	!
558	!-- Second stride: set buffer pointer
559	DO i = 1, children(childid)%inter_npes
560
561	ape => children(childid)%pes(i)
562
563	DO j = 1, ape%nr_arrays
564
565	ar => ape%array_list(j)
566	ar%sendbuf = C_LOC( base_array_pc(ar%sendindex) )
567
568	IF ( ar%sendindex + ar%sendsize > bufsize ) THEN
569	WRITE( message_string, '(a,i4,4i7,1x,a)' ) &
570	'parent buffer too small ',i, &
571	ar%sendindex,ar%sendsize,ar%sendindex+ar%sendsize, &
572	bufsize,trim(ar%name)
573	CALL message( 'pmc_s_setind_and_allocmem', 'PA0429', 3, 2, 0, 6, 0 )
574	ENDIF
575	ENDDO
576	ENDDO
577	!
578	!-- Child to parent direction
579	bufsize = 8
580	!
581	!-- First stride: compute size and set index
582	DO i = 1, children(childid)%inter_npes
583	ape => children(childid)%pes(i)
584	tag = 300
585	DO j = 1, ape%nr_arrays
586	ar => ape%array_list(j)
587	!
588	!-- Receive index from child
589	tag = tag + 1
590	CALL MPI_RECV( myindex, 1, MPI_INTEGER, i-1, tag, &
591	children(childid)%inter_comm, MPI_STATUS_IGNORE, ierr )
592	IF ( ar%nrdims == 3 ) THEN
593	bufsize = MAX( bufsize, ape%nrele * ar%a_dim(4) )
594	ELSE
595	bufsize = MAX( bufsize, ape%nrele )
596	ENDIF
597	ar%recvindex = myindex
598	ENDDO
599	ENDDO
600	!
601	!-- Create RMA (one sided communication, RMA = Remote Memory Access) data buffer.
602	!-- The buffer for MPI_GET can be PE local, i.e. it can but must not be part of
603	!-- the MPI RMA window
604	CALL pmc_alloc_mem( base_array_cp, bufsize, base_ptr )
605	children(childid)%totalbuffersize = bufsize * wp
606
607	CALL MPI_BARRIER( children(childid)%intra_comm, ierr )
608	!
609	!-- Second stride: set buffer pointer
610	DO i = 1, children(childid)%inter_npes
611	ape => children(childid)%pes(i)
612	DO j = 1, ape%nr_arrays
613	ar => ape%array_list(j)
614	ar%recvbuf = base_ptr
615	ENDDO
616	ENDDO
617
618	END SUBROUTINE pmc_s_setind_and_allocmem
619
620
621
622	SUBROUTINE pmc_s_fillbuffer( childid, waittime, particle_transfer )
623
624	IMPLICIT NONE
625
626	INTEGER(iwp), INTENT(IN) :: childid !<
627
628	REAL(wp), INTENT(OUT), OPTIONAL :: waittime !<
629	LOGICAL, INTENT(IN), OPTIONAL :: particle_transfer !<
630
631
632	INTEGER(iwp) :: ierr !<
633	INTEGER(iwp) :: ij !<
634	INTEGER(iwp) :: ip !<
635	INTEGER(iwp) :: j !<
636	INTEGER(iwp) :: myindex !<
637
638	LOGICAL :: lo_ptrans
639
640	INTEGER(iwp), DIMENSION(1) :: buf_shape
641
642	REAL(wp) :: t1 !<
643	REAL(wp) :: t2 !<
644	REAL(wp), POINTER, DIMENSION(:) :: buf !<
645	REAL(wp), POINTER, DIMENSION(:,:) :: data_2d !<
646	REAL(wp), POINTER, DIMENSION(:,:,:) :: data_3d !<
647	INTEGER(idp), POINTER, DIMENSION(:) :: ibuf !<
648	INTEGER(idp), POINTER, DIMENSION(:,:) :: idata_2d !<
649
650	TYPE(pedef), POINTER :: ape !<
651	TYPE(arraydef), POINTER :: ar !<
652
653	!
654	!-- Synchronization of the model is done in pmci_synchronize.
655	!-- Therefor the RMA window can be filled without
656	!-- sychronization at this point and a barrier is not necessary.
657	!-- Please note that waittime has to be set in pmc_s_fillbuffer AND
658	!-- pmc_c_getbuffer
659	IF ( PRESENT( waittime) ) THEN
660	t1 = pmc_time()
661	CALL MPI_BARRIER( children(childid)%intra_comm, ierr )
662	t2 = pmc_time()
663	waittime = t2- t1
664	ENDIF
665
666	lo_ptrans = .FALSE.
667	IF ( PRESENT( particle_transfer)) lo_ptrans = particle_transfer
668
669	DO ip = 1, children(childid)%inter_npes
670	ape => children(childid)%pes(ip)
671	DO j = 1, ape%nr_arrays
672	ar => ape%array_list(j)
673	myindex = 1
674
675	IF ( ar%dimkey == 2 .AND. .NOT.lo_ptrans ) THEN ! PALM 2D REAL*8 Array
676
677	buf_shape(1) = ape%nrele
678	CALL C_F_POINTER( ar%sendbuf, buf, buf_shape )
679	CALL C_F_POINTER( ar%data, data_2d, ar%a_dim(1:2) )
680	DO ij = 1, ape%nrele
681	buf(myindex) = data_2d(ape%locind(ij)%j,ape%locind(ij)%i)
682	myindex = myindex + 1
683	ENDDO
684
685	ELSEIF ( ar%dimkey == 3 .AND. .NOT.lo_ptrans ) THEN ! PALM 3D REAL*8 Array
686
687	buf_shape(1) = ape%nrele*ar%a_dim(4)
688	CALL C_F_POINTER( ar%sendbuf, buf, buf_shape )
689	CALL C_F_POINTER( ar%data, data_3d, ar%a_dim(1:3) )
690	DO ij = 1, ape%nrele
691	buf(myindex:myindex+ar%a_dim(4)-1) = &
692	data_3d(1:ar%a_dim(4),ape%locind(ij)%j,ape%locind(ij)%i)
693	myindex = myindex + ar%a_dim(4)
694	ENDDO
695	ELSEIF ( ar%dimkey == 22 .AND. lo_ptrans ) THEN ! 2D INTEGER*8 Array for particle Transfer
696
697	buf_shape(1) = ape%nrele
698	CALL C_F_POINTER( ar%sendbuf, ibuf, buf_shape )
699	CALL C_F_POINTER( ar%data, idata_2d, ar%a_dim(1:2) )
700	DO ij = 1, ape%nrele
701	ibuf(myindex) = idata_2d(ape%locind(ij)%j,ape%locind(ij)%i)
702	myindex = myindex + 1
703	ENDDO
704	ENDIF
705	ENDDO
706	ENDDO
707	!
708	!-- Buffer is filled
709	CALL MPI_BARRIER( children(childid)%intra_comm, ierr )
710
711	END SUBROUTINE pmc_s_fillbuffer
712
713
714
715	SUBROUTINE pmc_s_getdata_from_buffer( childid, waittime , particle_transfer, child_process_nr )
716
717	IMPLICIT NONE
718
719	INTEGER(iwp), INTENT(IN) :: childid !<
720	REAL(wp), INTENT(OUT), OPTIONAL :: waittime !<
721	LOGICAL, INTENT(IN), OPTIONAL :: particle_transfer !<
722	INTEGER(iwp), INTENT(IN), OPTIONAL :: child_process_nr !<
723
724	INTEGER(iwp) :: ierr !<
725	INTEGER(iwp) :: ij !<
726	INTEGER(iwp) :: ip !<
727	INTEGER(iwp) :: ip_start !<
728	INTEGER(iwp) :: ip_end !<
729	INTEGER(iwp) :: j !<
730	INTEGER(iwp) :: myindex !<
731	INTEGER(iwp) :: nr !<
732	INTEGER(iwp) :: target_pe !<
733	INTEGER(KIND=MPI_ADDRESS_KIND) :: target_disp !<
734
735	LOGICAL :: lo_ptrans
736
737	INTEGER(iwp), DIMENSION(1) :: buf_shape !<
738
739	REAL(wp) :: t1 !<
740	REAL(wp) :: t2 !<
741	REAL(wp), POINTER, DIMENSION(:) :: buf !<
742	REAL(wp), POINTER, DIMENSION(:,:) :: data_2d !<
743	REAL(wp), POINTER, DIMENSION(:,:,:) :: data_3d !<
744	INTEGER(idp), POINTER, DIMENSION(:) :: ibuf !<
745	INTEGER(idp), POINTER, DIMENSION(:,:) :: idata_2d !<
746
747	TYPE(pedef), POINTER :: ape !<
748	TYPE(arraydef), POINTER :: ar !<
749
750
751	t1 = pmc_time()
752
753	IF(PRESENT(child_process_nr)) then
754	ip_start = child_process_nr
755	ip_end = child_process_nr
756	ELSE
757	ip_start = 1
758	ip_end = children(childid)%inter_npes
759	END IF
760
761	lo_ptrans = .FALSE.
762	IF ( PRESENT( particle_transfer)) lo_ptrans = particle_transfer
763
764	IF(ip_start == 1) THEN
765	!
766	!-- Wait for child to fill buffer
767	CALL MPI_BARRIER( children(childid)%intra_comm, ierr )
768	t2 = pmc_time() - t1
769	IF ( PRESENT( waittime ) ) waittime = t2
770
771	CALL MPI_BARRIER( children(childid)%intra_comm, ierr )
772	ENDIF
773
774	DO ip = ip_start,ip_end
775	ape => children(childid)%pes(ip)
776	DO j = 1, ape%nr_arrays
777	ar => ape%array_list(j)
778
779	IF ( ar%recvindex < 0 ) CYCLE
780
781	IF ( ar%dimkey == 2 .AND. .NOT.lo_ptrans ) THEN
782	nr = ape%nrele
783	ELSEIF ( ar%dimkey == 3 .AND. .NOT.lo_ptrans ) THEN
784	nr = ape%nrele * ar%a_dim(4)
785	ELSE IF ( ar%dimkey == 22 .AND. lo_ptrans) THEN
786	nr = ape%nrele
787	ELSE
788	CYCLE !particle array are not transfered here
789	ENDIF
790	buf_shape(1) = nr
791	IF(lo_ptrans) THEN
792	CALL C_F_POINTER( ar%recvbuf, ibuf, buf_shape )
793	ELSE
794	CALL C_F_POINTER( ar%recvbuf, buf, buf_shape )
795	ENDIF
796
797	!
798	!-- MPI passive target RMA
799	IF ( nr > 0 ) THEN
800	target_disp = ar%recvindex - 1
801	!
802	!-- Child processes are located behind parent process
803	target_pe = ip - 1 + m_model_npes
804	CALL MPI_WIN_LOCK( MPI_LOCK_SHARED, target_pe, 0, &
805	children(childid)%win_parent_child, ierr )
806	IF(lo_ptrans) THEN
807	CALL MPI_GET( ibuf, nr8, MPI_BYTE, target_pe, target_disp, nr8, & !There is no MPI_INTEGER8 datatype
808	MPI_BYTE, children(childid)%win_parent_child, ierr )
809	ELSE
810	CALL MPI_GET( buf, nr, MPI_REAL, target_pe, target_disp, nr, &
811	MPI_REAL, children(childid)%win_parent_child, ierr )
812	ENDIF
813	CALL MPI_WIN_UNLOCK( target_pe, &
814	children(childid)%win_parent_child, ierr )
815	ENDIF
816	myindex = 1
817	IF ( ar%dimkey == 2 .AND. .NOT.lo_ptrans ) THEN
818
819	CALL C_F_POINTER( ar%data, data_2d, ar%a_dim(1:2) )
820	DO ij = 1, ape%nrele
821	data_2d(ape%locind(ij)%j,ape%locind(ij)%i) = buf(myindex)
822	myindex = myindex + 1
823	ENDDO
824
825	ELSEIF ( ar%dimkey == 3 .AND. .NOT.lo_ptrans ) THEN
826
827	CALL C_F_POINTER( ar%data, data_3d, ar%a_dim(1:3))
828	DO ij = 1, ape%nrele
829	data_3d(1:ar%a_dim(4),ape%locind(ij)%j,ape%locind(ij)%i) = &
830	buf(myindex:myindex+ar%a_dim(4)-1)
831	myindex = myindex + ar%a_dim(4)
832	ENDDO
833
834	ELSE IF ( ar%dimkey == 22 .AND. lo_ptrans) THEN
835
836	CALL C_F_POINTER( ar%data, idata_2d, ar%a_dim(1:2) )
837	DO ij = 1, ape%nrele
838	idata_2d(ape%locind(ij)%j,ape%locind(ij)%i) = ibuf(myindex)
839	myindex = myindex + 1
840	ENDDO
841
842	ENDIF
843	ENDDO
844	ENDDO
845
846	END SUBROUTINE pmc_s_getdata_from_buffer
847
848
849
850	SUBROUTINE get_da_names_from_child( childid )
851
852	!
853	!-- Get data array description and name from child
854	IMPLICIT NONE
855
856	INTEGER(iwp), INTENT(IN) :: childid !<
857
858	TYPE(da_namedef) :: myname !<
859
860	DO
861	CALL pmc_bcast( myname%couple_index, 0, comm=m_to_child_comm(childid) )
862
863	IF ( myname%couple_index == -1 ) EXIT
864
865	CALL pmc_bcast( myname%parentdesc, 0, comm=m_to_child_comm(childid) )
866	CALL pmc_bcast( myname%nameonparent, 0, comm=m_to_child_comm(childid) )
867	CALL pmc_bcast( myname%childdesc, 0, comm=m_to_child_comm(childid) )
868	CALL pmc_bcast( myname%nameonchild, 0, comm=m_to_child_comm(childid) )
869
870	CALL pmc_g_setname( children(childid), myname%couple_index, &
871	myname%nameonparent )
872	ENDDO
873
874	END SUBROUTINE get_da_names_from_child
875
876
877
878	SUBROUTINE pmc_s_setarray(childid, nrdims, dims, array_adr, second_adr, dimkey )
879
880	!
881	!-- Set array for child inter process 0
882	IMPLICIT NONE
883
884	INTEGER(iwp), INTENT(IN) :: childid !<
885	INTEGER(iwp), INTENT(IN) :: nrdims !<
886	INTEGER(iwp), INTENT(IN), DIMENSION(:) :: dims !<
887
888	TYPE(C_PTR), INTENT(IN) :: array_adr !<
889	TYPE(C_PTR), INTENT(IN), OPTIONAL :: second_adr !<
890	INTEGER(iwp), INTENT(IN), OPTIONAL :: dimkey !<
891
892	INTEGER(iwp) :: i !< local counter
893
894	TYPE(pedef), POINTER :: ape !<
895	TYPE(arraydef), POINTER :: ar !<
896
897
898	DO i = 1, children(childid)%inter_npes
899	ape => children(childid)%pes(i)
900	ar => ape%array_list(next_array_in_list)
901	ar%nrdims = nrdims
902	ar%dimkey = nrdims
903	IF(PRESENT(dimkey)) ar%dimkey = dimkey
904	ar%a_dim = dims
905	ar%data = array_adr
906	IF ( PRESENT( second_adr ) ) THEN
907	ar%po_data(1) = array_adr
908	ar%po_data(2) = second_adr
909	ELSE
910	ar%po_data(1) = C_NULL_PTR
911	ar%po_data(2) = C_NULL_PTR
912	ENDIF
913	ENDDO
914
915	END SUBROUTINE pmc_s_setarray
916
917
918
919	SUBROUTINE pmc_s_set_active_data_array( childid, iactive )
920
921	IMPLICIT NONE
922
923	INTEGER(iwp), INTENT(IN) :: childid !<
924	INTEGER(iwp), INTENT(IN) :: iactive !<
925
926	INTEGER(iwp) :: ip !<
927	INTEGER(iwp) :: j !<
928
929	TYPE(pedef), POINTER :: ape !<
930	TYPE(arraydef), POINTER :: ar !<
931
932	DO ip = 1, children(childid)%inter_npes
933	ape => children(childid)%pes(ip)
934	DO j = 1, ape%nr_arrays
935	ar => ape%array_list(j)
936	if(mod(ar%dimkey,10) == 2) CYCLE !Not for 2D array
937	IF ( iactive == 1 .OR. iactive == 2 ) THEN
938	ar%data = ar%po_data(iactive)
939	ENDIF
940	ENDDO
941	ENDDO
942
943	END SUBROUTINE pmc_s_set_active_data_array
944
945	INTEGER FUNCTION pmc_s_get_child_npes (child_id)
946	IMPLICIT NONE
947
948	INTEGER(iwp),INTENT(IN) :: child_id
949
950	pmc_s_get_child_npes = children(child_id)%inter_npes
951
952	RETURN
953	END FUNCTION pmc_s_get_child_npes
954
955
956	SUBROUTINE set_pe_index_list( childid, mychild, index_list, nrp )
957
958	IMPLICIT NONE
959
960	INTEGER(iwp), INTENT(IN) :: childid !<
961	INTEGER(iwp), INTENT(IN), DIMENSION(:,:) :: index_list !<
962	INTEGER(iwp), INTENT(IN) :: nrp !<
963
964	TYPE(childdef), INTENT(INOUT) :: mychild !<
965
966	INTEGER(iwp) :: i !<
967	INTEGER(iwp) :: ierr !<
968	INTEGER(iwp) :: ind !<
969	INTEGER(iwp) :: indwin !<
970	INTEGER(iwp) :: indwin2 !<
971	INTEGER(iwp) :: i2 !<
972	INTEGER(iwp) :: j !<
973	INTEGER(iwp) :: rempe !<
974	INTEGER(KIND=MPI_ADDRESS_KIND) :: winsize !<
975
976	INTEGER(iwp), DIMENSION(mychild%inter_npes) :: remind !<
977
978	INTEGER(iwp), DIMENSION(:), POINTER :: remindw !<
979	INTEGER(iwp), DIMENSION(:), POINTER :: rldef !<
980
981	TYPE(pedef), POINTER :: ape !<
982
983	!
984	!-- First, count entries for every remote child process
985	DO i = 1, mychild%inter_npes
986	ape => mychild%pes(i)
987	ape%nrele = 0
988	ENDDO
989	!
990	!-- Loop over number of coarse grid cells
991	DO j = 1, nrp
992	rempe = index_list(5,j) + 1 ! process number on remote process
993	ape => mychild%pes(rempe)
994	ape%nrele = ape%nrele + 1 ! Increment number of elements for this child process
995	ENDDO
996
997	DO i = 1, mychild%inter_npes
998	ape => mychild%pes(i)
999	ALLOCATE( ape%locind(ape%nrele) )
1000	ENDDO
1001
1002	remind = 0
1003	!
1004	!-- Second, create lists
1005	!-- Loop over number of coarse grid cells
1006	DO j = 1, nrp
1007	rempe = index_list(5,j) + 1
1008	ape => mychild%pes(rempe)
1009	remind(rempe) = remind(rempe)+1
1010	ind = remind(rempe)
1011	ape%locind(ind)%i = index_list(1,j)
1012	ape%locind(ind)%j = index_list(2,j)
1013	ENDDO
1014	!
1015	!-- Prepare number of elements for children processes
1016	CALL pmc_alloc_mem( rldef, mychild%inter_npes*2 )
1017	!
1018	!-- Number of child processes * size of INTEGER (i just arbitrary INTEGER)
1019	winsize = mychild%inter_npesSTORAGE_SIZE(i)/82
1020
1021	CALL MPI_WIN_CREATE( rldef, winsize, iwp, MPI_INFO_NULL, &
1022	mychild%intra_comm, indwin, ierr )
1023	!
1024	!-- Open window to set data
1025	CALL MPI_WIN_FENCE( 0, indwin, ierr )
1026
1027	rldef(1) = 0 ! index on remote process 0
1028	rldef(2) = remind(1) ! number of elements on remote process 0
1029	!
1030	!-- Reserve buffer for index array
1031	DO i = 2, mychild%inter_npes
1032	i2 = (i-1) * 2 + 1
1033	rldef(i2) = rldef(i2-2) + rldef(i2-1) * 2 ! index on remote process
1034	rldef(i2+1) = remind(i) ! number of elements on remote process
1035	ENDDO
1036	!
1037	!-- Close window to allow child to access data
1038	CALL MPI_WIN_FENCE( 0, indwin, ierr )
1039	!
1040	!-- Child has retrieved data
1041	CALL MPI_WIN_FENCE( 0, indwin, ierr )
1042
1043	i2 = 2 * mychild%inter_npes - 1
1044	winsize = ( rldef(i2) + rldef(i2+1) ) * 2
1045	!
1046	!-- Make sure, MPI_ALLOC_MEM works
1047	winsize = MAX( winsize, 1 )
1048
1049	CALL pmc_alloc_mem( remindw, INT( winsize ) )
1050
1051	CALL MPI_BARRIER( m_model_comm, ierr )
1052	CALL MPI_WIN_CREATE( remindw, winsize*STORAGE_SIZE(i)/8, iwp, MPI_INFO_NULL, &
1053	mychild%intra_comm, indwin2, ierr )
1054	!
1055	!-- Open window to set data
1056	CALL MPI_WIN_FENCE( 0, indwin2, ierr )
1057	!
1058	!-- Create the 2D index list
1059	DO j = 1, nrp
1060	rempe = index_list(5,j) + 1 ! process number on remote process
1061	ape => mychild%pes(rempe)
1062	i2 = rempe * 2 - 1
1063	ind = rldef(i2) + 1
1064	remindw(ind) = index_list(3,j)
1065	remindw(ind+1) = index_list(4,j)
1066	rldef(i2) = rldef(i2)+2
1067	ENDDO
1068	!
1069	!-- All data are set
1070	CALL MPI_WIN_FENCE( 0, indwin2, ierr )
1071	!
1072	!-- Don't know why, but this barrier is necessary before windows can be freed
1073	!-- TODO: find out why this is required
1074	CALL MPI_BARRIER( mychild%intra_comm, ierr )
1075
1076	CALL MPI_WIN_FREE( indwin, ierr )
1077	CALL MPI_WIN_FREE( indwin2, ierr )
1078
1079	!
1080	!-- TODO: check if the following idea needs to be done
1081	!-- Sollte funktionieren, Problem mit MPI implementation
1082	!-- https://www.lrz.de/services/software/parallel/mpi/onesided
1083	!-- CALL MPI_Free_mem (remindw, ierr)
1084
1085	END SUBROUTINE set_pe_index_list
1086
1087	#endif
1088	END MODULE pmc_parent

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