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source: palm/trunk/SOURCE/pmc_parent_mod.f90 @ 3163

Last change on this file since 3163 was 3049, checked in by Giersch, 6 years ago
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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 3049 2018-05-29 13:52:36Z witha $
28	! Comment extended
29	!
30	! 2841 2018-02-27 15:02:57Z Giersch
31	! Bugfix: wrong placement of include 'mpif.h' corrected
32	!
33	! 2809 2018-02-15 09:55:58Z schwenkel
34	! Bugfix for gfortran: Replace the function C_SIZEOF with STORAGE_SIZE
35	!
36	! 2801 2018-02-14 16:01:55Z thiele
37	! Introduce particle transfer in nested models.
38	!
39	! 2718 2018-01-02 08:49:38Z maronga
40	! Corrected "Former revisions" section
41	!
42	! 2696 2017-12-14 17:12:51Z kanani
43	! Change in file header (GPL part)
44	!
45	! 2599 2017-11-01 13:18:45Z hellstea
46	! Some cleanup and commenting improvements only.
47	!
48	! 2101 2017-01-05 16:42:31Z suehring
49	!
50	! 2000 2016-08-20 18:09:15Z knoop
51	! Forced header and separation lines into 80 columns
52	!
53	! 1938 2016-06-13 15:26:05Z hellstea
54	! Minor clean up.
55	!
56	! 1901 2016-05-04 15:39:38Z raasch
57	! Module renamed. Code clean up. The words server/client changed to parent/child.
58	!
59	! 1900 2016-05-04 15:27:53Z raasch
60	! re-formatted to match PALM style
61	!
62	! 1850 2016-04-08 13:29:27Z maronga
63	! Module renamed
64	!
65	!
66	! 1833 2016-04-07 14:23:03Z raasch
67	! gfortran requires pointer attributes for some array declarations,
68	! long line wrapped
69	!
70	! 1808 2016-04-05 19:44:00Z raasch
71	! MPI module used by default on all machines
72	!
73	! 1797 2016-03-21 16:50:28Z raasch
74	! introduction of different datatransfer modes
75	!
76	! 1791 2016-03-11 10:41:25Z raasch
77	! Debug write-statements commented out
78	!
79	! 1786 2016-03-08 05:49:27Z raasch
80	! change in child-parent data transfer: parent now gets data from child
81	! instead that child put's it to the parent
82	!
83	! 1779 2016-03-03 08:01:28Z raasch
84	! kind=dp replaced by wp,
85	! error messages removed or changed to PALM style, dim_order removed
86	! array management changed from linked list to sequential loop
87	!
88	! 1766 2016-02-29 08:37:15Z raasch
89	! modifications to allow for using PALM's pointer version
90	! +new routine pmc_s_set_active_data_array
91	!
92	! 1764 2016-02-28 12:45:19Z raasch
93	! cpp-statement added (nesting can only be used in parallel mode)
94	!
95	! 1762 2016-02-25 12:31:13Z hellstea
96	! Initial revision by K. Ketelsen
97	!
98	! Description:
99	! ------------
100	!
101	! Parent part of Palm Model Coupler
102	!------------------------------------------------------------------------------!
103
104	#if defined( __parallel )
105	USE, INTRINSIC :: ISO_C_BINDING
106
107	#if !defined( __mpifh )
108	USE MPI
109	#endif
110	USE kinds
111	USE pmc_general, &
112	ONLY: arraydef, childdef, da_namedef, da_namelen, pedef, &
113	pmc_g_setname, pmc_max_array, pmc_max_models, pmc_sort
114
115	USE pmc_handle_communicator, &
116	ONLY: m_model_comm,m_model_rank,m_model_npes, m_to_child_comm, &
117	m_world_rank, pmc_parent_for_child
118
119	USE pmc_mpi_wrapper, &
120	ONLY: pmc_alloc_mem, pmc_bcast, pmc_time
121
122	IMPLICIT NONE
123
124	#if defined( __mpifh )
125	INCLUDE "mpif.h"
126	#endif
127
128	PRIVATE
129	SAVE
130
131	TYPE childindexdef
132	INTEGER :: nrpoints !<
133	INTEGER, DIMENSION(:,:), ALLOCATABLE :: index_list_2d !<
134	END TYPE childindexdef
135
136	TYPE(childdef), DIMENSION(pmc_max_models),PUBLIC :: children !<
137	TYPE(childindexdef), DIMENSION(pmc_max_models) :: indchildren !<
138
139	INTEGER :: next_array_in_list = 0 !<
140
141
142	PUBLIC pmc_parent_for_child
143
144
145	INTERFACE pmc_parentinit
146	MODULE PROCEDURE pmc_parentinit
147	END INTERFACE pmc_parentinit
148
149	INTERFACE pmc_s_set_2d_index_list
150	MODULE PROCEDURE pmc_s_set_2d_index_list
151	END INTERFACE pmc_s_set_2d_index_list
152
153	INTERFACE pmc_s_clear_next_array_list
154	MODULE PROCEDURE pmc_s_clear_next_array_list
155	END INTERFACE pmc_s_clear_next_array_list
156
157	INTERFACE pmc_s_getnextarray
158	MODULE PROCEDURE pmc_s_getnextarray
159	END INTERFACE pmc_s_getnextarray
160
161	INTERFACE pmc_s_set_dataarray
162	MODULE PROCEDURE pmc_s_set_dataarray_2d
163	MODULE PROCEDURE pmc_s_set_dataarray_3d
164	MODULE PROCEDURE pmc_s_set_dataarray_ip2d
165	END INTERFACE pmc_s_set_dataarray
166
167	INTERFACE pmc_s_setind_and_allocmem
168	MODULE PROCEDURE pmc_s_setind_and_allocmem
169	END INTERFACE pmc_s_setind_and_allocmem
170
171	INTERFACE pmc_s_fillbuffer
172	MODULE PROCEDURE pmc_s_fillbuffer
173	END INTERFACE pmc_s_fillbuffer
174
175	INTERFACE pmc_s_getdata_from_buffer
176	MODULE PROCEDURE pmc_s_getdata_from_buffer
177	END INTERFACE pmc_s_getdata_from_buffer
178
179	INTERFACE pmc_s_set_active_data_array
180	MODULE PROCEDURE pmc_s_set_active_data_array
181	END INTERFACE pmc_s_set_active_data_array
182
183	INTERFACE pmc_s_get_child_npes
184	MODULE PROCEDURE pmc_s_get_child_npes
185	END INTERFACE pmc_s_get_child_npes
186
187	PUBLIC pmc_parentinit, pmc_s_clear_next_array_list, pmc_s_fillbuffer, &
188	pmc_s_getdata_from_buffer, pmc_s_getnextarray, &
189	pmc_s_setind_and_allocmem, pmc_s_set_active_data_array, &
190	pmc_s_set_dataarray, pmc_s_set_2d_index_list, &
191	pmc_s_get_child_npes
192
193	CONTAINS
194
195
196	SUBROUTINE pmc_parentinit
197
198	IMPLICIT NONE
199
200	INTEGER(iwp) :: childid !<
201	INTEGER(iwp) :: i !<
202	INTEGER(iwp) :: j !<
203	INTEGER(iwp) :: istat !<
204
205
206	DO i = 1, SIZE( pmc_parent_for_child )-1
207
208	childid = pmc_parent_for_child( i )
209
210	children(childid)%model_comm = m_model_comm
211	children(childid)%inter_comm = m_to_child_comm(childid)
212
213	!
214	!-- Get rank and size
215	CALL MPI_COMM_RANK( children(childid)%model_comm, &
216	children(childid)%model_rank, istat )
217	CALL MPI_COMM_SIZE( children(childid)%model_comm, &
218	children(childid)%model_npes, istat )
219	CALL MPI_COMM_REMOTE_SIZE( children(childid)%inter_comm, &
220	children(childid)%inter_npes, istat )
221
222	!
223	!-- Intra communicator is used for MPI_GET
224	CALL MPI_INTERCOMM_MERGE( children(childid)%inter_comm, .FALSE., &
225	children(childid)%intra_comm, istat )
226	CALL MPI_COMM_RANK( children(childid)%intra_comm, &
227	children(childid)%intra_rank, istat )
228
229	ALLOCATE( children(childid)%pes(children(childid)%inter_npes))
230
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) :: ic !<
255	INTEGER(iwp) :: ie !<
256	INTEGER(iwp) :: ip !<
257	INTEGER(iwp) :: is !<
258	INTEGER(iwp) :: istat !<
259	INTEGER(iwp) :: n,i !<
260
261
262	IF ( m_model_rank == 0 ) THEN
263	!
264	!-- Sort to ascending parent process order
265	CALL pmc_sort( index_list, 6 )
266	is = 1
267	DO ip = 0, m_model_npes-1
268	!
269	!-- Split into parent processes
270	ie = is - 1
271	!
272	!-- There may be no entry for this process
273	IF ( is <= SIZE( index_list,2 ) .AND. ie >= 0 ) THEN
274	DO WHILE ( index_list(6,ie+1 ) == ip )
275	ie = ie + 1
276	IF ( ie == SIZE( index_list,2 ) ) EXIT
277	ENDDO
278	ian = ie - is + 1
279	ELSE
280	is = -1
281	ie = -2
282	ian = 0
283	ENDIF
284	!
285	!-- Send data to other parent processes
286	IF ( ip == 0 ) THEN
287	indchildren(childid)%nrpoints = ian
288	IF ( ian > 0) THEN
289	ALLOCATE( indchildren(childid)%index_list_2d(6,ian) )
290	indchildren(childid)%index_list_2d(:,1:ian) = &
291	index_list(:,is:ie)
292	ENDIF
293	ELSE
294	CALL MPI_SEND( ian, 1, MPI_INTEGER, ip, 1000, m_model_comm, &
295	istat )
296	IF ( ian > 0) THEN
297	CALL MPI_SEND( index_list(1,is), 6*ian, MPI_INTEGER, ip, &
298	1001, m_model_comm, istat )
299	ENDIF
300	ENDIF
301	is = ie + 1
302	ENDDO
303	ELSE
304	CALL MPI_RECV( indchildren(childid)%nrpoints, 1, MPI_INTEGER, 0, 1000, &
305	m_model_comm, MPI_STATUS_IGNORE, istat )
306	ian = indchildren(childid)%nrpoints
307	IF ( ian > 0 ) THEN
308	ALLOCATE( indchildren(childid)%index_list_2d(6,ian) )
309	CALL MPI_RECV( indchildren(childid)%index_list_2d, 6*ian, &
310	MPI_INTEGER, 0, 1001, m_model_comm, &
311	MPI_STATUS_IGNORE, istat)
312	ENDIF
313	ENDIF
314	CALL set_pe_index_list( childid, children(childid), &
315	indchildren(childid)%index_list_2d, &
316	indchildren(childid)%nrpoints )
317
318	END SUBROUTINE pmc_s_set_2d_index_list
319
320
321
322	SUBROUTINE pmc_s_clear_next_array_list
323
324	IMPLICIT NONE
325
326	next_array_in_list = 0
327
328	END SUBROUTINE pmc_s_clear_next_array_list
329
330
331
332	LOGICAL FUNCTION pmc_s_getnextarray( childid, myname )
333
334	!
335	!-- Althoug there are no linked lists any more in PMC, this call still looks like working with a list
336
337	CHARACTER(LEN=*), INTENT(OUT) :: myname !<
338	INTEGER(iwp), INTENT(IN) :: childid !<
339
340	TYPE(arraydef), POINTER :: ar
341	TYPE(pedef), POINTER :: ape
342
343	next_array_in_list = next_array_in_list + 1
344	!
345	!-- Array names are the same on all children processes, so take first
346	!-- process to get the name
347	ape => children(childid)%pes(1)
348
349	IF ( next_array_in_list > ape%nr_arrays ) THEN
350	!
351	!-- All arrays are done
352	pmc_s_getnextarray = .FALSE.
353	RETURN
354	ENDIF
355
356	ar => ape%array_list(next_array_in_list)
357	myname = ar%name
358	!
359	!-- Return true if there is still an array in the list
360
361	pmc_s_getnextarray = .TRUE.
362
363	END FUNCTION pmc_s_getnextarray
364
365
366
367	SUBROUTINE pmc_s_set_dataarray_2d( childid, array, array_2 )
368
369	IMPLICIT NONE
370
371	INTEGER(iwp), INTENT(IN) :: childid !<
372
373	REAL(wp), INTENT(IN), DIMENSION(:,:), POINTER :: array !<
374	REAL(wp), INTENT(IN), DIMENSION(:,:), POINTER, OPTIONAL :: array_2 !<
375
376	INTEGER(iwp) :: nrdims !<
377	INTEGER(iwp), DIMENSION(4) :: dims !<
378	TYPE(C_PTR) :: array_adr !<
379	TYPE(C_PTR) :: second_adr !<
380
381
382	dims = 1
383	nrdims = 2
384	dims(1) = SIZE( array,1 )
385	dims(2) = SIZE( array,2 )
386	array_adr = C_LOC( array )
387
388	IF ( PRESENT( array_2 ) ) THEN
389	second_adr = C_LOC(array_2)
390	CALL pmc_s_setarray( childid, nrdims, dims, array_adr, &
391	second_adr = second_adr)
392	ELSE
393	CALL pmc_s_setarray( childid, nrdims, dims, array_adr )
394	ENDIF
395
396	END SUBROUTINE pmc_s_set_dataarray_2d
397
398	SUBROUTINE pmc_s_set_dataarray_ip2d( childid, array )
399
400	IMPLICIT NONE
401
402	INTEGER(iwp),INTENT(IN) :: childid !<
403
404	INTEGER(idp), INTENT(IN), DIMENSION(:,:), POINTER :: array !<
405
406	INTEGER(iwp) :: nrdims !<
407	INTEGER(iwp), DIMENSION(4) :: dims !<
408	TYPE(C_PTR) :: array_adr !<
409
410
411	dims = 1
412	nrdims = 2
413	dims(1) = SIZE( array,1 )
414	dims(2) = SIZE( array,2 )
415	array_adr = C_LOC( array )
416
417	CALL pmc_s_setarray( childid, nrdims, dims, array_adr , dimkey=22)
418
419	END SUBROUTINE pmc_s_set_dataarray_ip2d
420
421
422	SUBROUTINE pmc_s_set_dataarray_3d( childid, array, nz_cl, nz, array_2 )
423
424	IMPLICIT NONE
425
426	INTEGER(iwp), INTENT(IN) :: childid !<
427	INTEGER(iwp), INTENT(IN) :: nz !<
428	INTEGER(iwp), INTENT(IN) :: nz_cl !<
429
430	REAL(wp), INTENT(IN), DIMENSION(:,:,:), POINTER :: array !<
431	REAL(wp), INTENT(IN), DIMENSION(:,:,:), POINTER, OPTIONAL :: array_2 !<
432
433	INTEGER(iwp) :: nrdims !<
434	INTEGER(iwp), DIMENSION(4) :: dims !<
435	TYPE(C_PTR) :: array_adr !<
436	TYPE(C_PTR) :: second_adr !<
437
438	nrdims = 3
439	dims(1) = SIZE( array,1 )
440	dims(2) = SIZE( array,2 )
441	dims(3) = SIZE( array,3 )
442	dims(4) = nz_cl+dims(1)-nz ! works for first dimension 1:nz and 0:nz+1
443
444	array_adr = C_LOC(array)
445	!
446	!-- In PALM's pointer version, two indices have to be stored internally.
447	!-- The active address of the data array is set in swap_timelevel.
448	IF ( PRESENT( array_2 ) ) THEN
449	second_adr = C_LOC( array_2 )
450	CALL pmc_s_setarray( childid, nrdims, dims, array_adr, &
451	second_adr = second_adr)
452	ELSE
453	CALL pmc_s_setarray( childid, nrdims, dims, array_adr )
454	ENDIF
455
456	END SUBROUTINE pmc_s_set_dataarray_3d
457
458
459
460	SUBROUTINE pmc_s_setind_and_allocmem( childid )
461
462	USE control_parameters, &
463	ONLY: message_string
464
465	IMPLICIT NONE
466
467	!
468	!-- Naming convention for appendices: _pc -> parent to child transfer
469	!-- _cp -> child to parent transfer
470	!-- send -> parent to child transfer
471	!-- recv -> child to parent transfer
472	INTEGER(iwp), INTENT(IN) :: childid !<
473
474	INTEGER(iwp) :: arlen !<
475	INTEGER(iwp) :: i !<
476	INTEGER(iwp) :: ierr !<
477	INTEGER(iwp) :: istat !<
478	INTEGER(iwp) :: j !<
479	INTEGER(iwp) :: myindex !<
480	INTEGER(iwp) :: rcount !< count MPI requests
481	INTEGER(iwp) :: tag !<
482
483	INTEGER(idp) :: bufsize !< size of MPI data window
484	INTEGER(KIND=MPI_ADDRESS_KIND) :: winsize !<
485
486	INTEGER(iwp), DIMENSION(1024) :: req !<
487
488	TYPE(C_PTR) :: base_ptr !<
489	TYPE(pedef), POINTER :: ape !<
490	TYPE(arraydef), POINTER :: ar !<
491
492	REAL(wp),DIMENSION(:), POINTER, SAVE :: base_array_pc !< base array for parent to child transfer
493	REAL(wp),DIMENSION(:), POINTER, SAVE :: base_array_cp !< base array for child to parent transfer
494
495	!
496	!-- Parent to child direction
497	myindex = 1
498	rcount = 0
499	bufsize = 8
500	!
501	!-- First stride: compute size and set index
502	DO i = 1, children(childid)%inter_npes
503
504	ape => children(childid)%pes(i)
505	tag = 200
506
507	DO j = 1, ape%nr_arrays
508
509	ar => ape%array_list(j)
510	IF ( ar%nrdims == 2 ) THEN
511	arlen = ape%nrele
512	ELSEIF ( ar%nrdims == 3 ) THEN
513	arlen = ape%nrele * ar%a_dim(4)
514	ELSE
515	arlen = -1
516	ENDIF
517	ar%sendindex = myindex
518
519	tag = tag + 1
520	rcount = rcount + 1
521	CALL MPI_ISEND( myindex, 1, MPI_INTEGER, i-1, tag, &
522	children(childid)%inter_comm, req(rcount), ierr )
523	!
524	!-- Maximum of 1024 pending requests
525
526	IF ( rcount == 1024 ) THEN
527	CALL MPI_WAITALL( rcount, req, MPI_STATUSES_IGNORE, ierr )
528	rcount = 0
529	ENDIF
530
531	myindex = myindex + arlen
532	bufsize = bufsize + arlen
533	ar%sendsize = arlen
534	ENDDO
535
536	IF ( rcount > 0 ) THEN
537	CALL MPI_WAITALL( rcount, req, MPI_STATUSES_IGNORE, ierr )
538	ENDIF
539
540	ENDDO
541	!
542	!-- Create RMA (One Sided Communication) window for data buffer parent to
543	!-- child transfer.
544	!-- The buffer of MPI_GET (counterpart of transfer) can be PE-local, i.e.
545	!-- it can but must not be part of the MPI RMA window. Only one RMA window is
546	!-- required to prepare the data for
547	!-- parent -> child transfer on the parent side
548	!-- and for
549	!-- child -> parent transfer on the child side
550	CALL pmc_alloc_mem( base_array_pc, bufsize )
551	children(childid)%totalbuffersize = bufsize * wp
552
553	winsize = bufsize * wp
554	CALL MPI_WIN_CREATE( base_array_pc, winsize, wp, MPI_INFO_NULL, &
555	children(childid)%intra_comm, &
556	children(childid)%win_parent_child, ierr )
557	!
558	!-- Open window to set data
559	CALL MPI_WIN_FENCE( 0, children(childid)%win_parent_child, ierr )
560	!
561	!-- Second stride: set buffer pointer
562	DO i = 1, children(childid)%inter_npes
563
564	ape => children(childid)%pes(i)
565
566	DO j = 1, ape%nr_arrays
567
568	ar => ape%array_list(j)
569	ar%sendbuf = C_LOC( base_array_pc(ar%sendindex) )
570
571	IF ( ar%sendindex + ar%sendsize > bufsize ) THEN
572	WRITE( message_string, '(a,i4,4i7,1x,a)' ) &
573	'parent buffer too small ',i, &
574	ar%sendindex,ar%sendsize,ar%sendindex+ar%sendsize, &
575	bufsize,trim(ar%name)
576	CALL message( 'pmc_s_setind_and_allocmem', 'PA0429', 3, 2, 0, 6, 0 )
577	ENDIF
578	ENDDO
579	ENDDO
580	!
581	!-- Child to parent direction
582	bufsize = 8
583	!
584	!-- First stride: compute size and set index
585	DO i = 1, children(childid)%inter_npes
586	ape => children(childid)%pes(i)
587	tag = 300
588	DO j = 1, ape%nr_arrays
589	ar => ape%array_list(j)
590	!
591	!-- Receive index from child
592	tag = tag + 1
593	CALL MPI_RECV( myindex, 1, MPI_INTEGER, i-1, tag, &
594	children(childid)%inter_comm, MPI_STATUS_IGNORE, ierr )
595	IF ( ar%nrdims == 3 ) THEN
596	bufsize = MAX( bufsize, ape%nrele * ar%a_dim(4) )
597	ELSE
598	bufsize = MAX( bufsize, ape%nrele )
599	ENDIF
600	ar%recvindex = myindex
601	ENDDO
602	ENDDO
603	!
604	!-- Create RMA (one sided communication, RMA = Remote Memory Access) data buffer.
605	!-- The buffer for MPI_GET can be PE local, i.e. it can but must not be part of
606	!-- the MPI RMA window
607	CALL pmc_alloc_mem( base_array_cp, bufsize, base_ptr )
608	children(childid)%totalbuffersize = bufsize * wp
609
610	CALL MPI_BARRIER( children(childid)%intra_comm, ierr )
611	!
612	!-- Second stride: set buffer pointer
613	DO i = 1, children(childid)%inter_npes
614	ape => children(childid)%pes(i)
615	DO j = 1, ape%nr_arrays
616	ar => ape%array_list(j)
617	ar%recvbuf = base_ptr
618	ENDDO
619	ENDDO
620
621	END SUBROUTINE pmc_s_setind_and_allocmem
622
623
624
625	SUBROUTINE pmc_s_fillbuffer( childid, waittime, particle_transfer )
626
627	IMPLICIT NONE
628
629	INTEGER(iwp), INTENT(IN) :: childid !<
630
631	REAL(wp), INTENT(OUT), OPTIONAL :: waittime !<
632	LOGICAL, INTENT(IN), OPTIONAL :: particle_transfer !<
633
634
635	INTEGER(iwp) :: ierr !<
636	INTEGER(iwp) :: ij !<
637	INTEGER(iwp) :: ip !<
638	INTEGER(iwp) :: istat !<
639	INTEGER(iwp) :: j !<
640	INTEGER(iwp) :: myindex !<
641
642	LOGICAL :: lo_ptrans
643
644	INTEGER(iwp), DIMENSION(1) :: buf_shape
645
646	REAL(wp) :: t1 !<
647	REAL(wp) :: t2 !<
648	REAL(wp), POINTER, DIMENSION(:) :: buf !<
649	REAL(wp), POINTER, DIMENSION(:,:) :: data_2d !<
650	REAL(wp), POINTER, DIMENSION(:,:,:) :: data_3d !<
651	INTEGER(idp), POINTER, DIMENSION(:) :: ibuf !<
652	INTEGER(idp), POINTER, DIMENSION(:,:) :: idata_2d !<
653
654	TYPE(pedef), POINTER :: ape !<
655	TYPE(arraydef), POINTER :: ar !<
656
657	!
658	!-- Synchronization of the model is done in pmci_synchronize.
659	!-- Therefor the RMA window can be filled without
660	!-- sychronization at this point and a barrier is not necessary.
661	!-- Please note that waittime has to be set in pmc_s_fillbuffer AND
662	!-- pmc_c_getbuffer
663	IF ( PRESENT( waittime) ) THEN
664	t1 = pmc_time()
665	CALL MPI_BARRIER( children(childid)%intra_comm, ierr )
666	t2 = pmc_time()
667	waittime = t2- t1
668	ENDIF
669
670	lo_ptrans = .FALSE.
671	IF ( PRESENT( particle_transfer)) lo_ptrans = particle_transfer
672
673	DO ip = 1, children(childid)%inter_npes
674	ape => children(childid)%pes(ip)
675	DO j = 1, ape%nr_arrays
676	ar => ape%array_list(j)
677	myindex = 1
678
679	IF ( ar%dimkey == 2 .AND. .NOT.lo_ptrans ) THEN ! PALM 2D REAL*8 Array
680
681	buf_shape(1) = ape%nrele
682	CALL C_F_POINTER( ar%sendbuf, buf, buf_shape )
683	CALL C_F_POINTER( ar%data, data_2d, ar%a_dim(1:2) )
684	DO ij = 1, ape%nrele
685	buf(myindex) = data_2d(ape%locind(ij)%j,ape%locind(ij)%i)
686	myindex = myindex + 1
687	ENDDO
688
689	ELSEIF ( ar%dimkey == 3 .AND. .NOT.lo_ptrans ) THEN ! PALM 3D REAL*8 Array
690
691	buf_shape(1) = ape%nrele*ar%a_dim(4)
692	CALL C_F_POINTER( ar%sendbuf, buf, buf_shape )
693	CALL C_F_POINTER( ar%data, data_3d, ar%a_dim(1:3) )
694	DO ij = 1, ape%nrele
695	buf(myindex:myindex+ar%a_dim(4)-1) = &
696	data_3d(1:ar%a_dim(4),ape%locind(ij)%j,ape%locind(ij)%i)
697	myindex = myindex + ar%a_dim(4)
698	ENDDO
699	ELSEIF ( ar%dimkey == 22 .AND. lo_ptrans ) THEN ! 2D INTEGER*8 Array for particle Transfer
700
701	buf_shape(1) = ape%nrele
702	CALL C_F_POINTER( ar%sendbuf, ibuf, buf_shape )
703	CALL C_F_POINTER( ar%data, idata_2d, ar%a_dim(1:2) )
704	DO ij = 1, ape%nrele
705	ibuf(myindex) = idata_2d(ape%locind(ij)%j,ape%locind(ij)%i)
706	myindex = myindex + 1
707	ENDDO
708	ENDIF
709	ENDDO
710	ENDDO
711	!
712	!-- Buffer is filled
713	CALL MPI_BARRIER( children(childid)%intra_comm, ierr )
714
715	END SUBROUTINE pmc_s_fillbuffer
716
717
718
719	SUBROUTINE pmc_s_getdata_from_buffer( childid, waittime , particle_transfer, child_process_nr )
720
721	IMPLICIT NONE
722
723	INTEGER(iwp), INTENT(IN) :: childid !<
724	REAL(wp), INTENT(OUT), OPTIONAL :: waittime !<
725	LOGICAL, INTENT(IN), OPTIONAL :: particle_transfer !<
726	INTEGER(iwp), INTENT(IN), OPTIONAL :: child_process_nr !<
727
728	INTEGER(iwp) :: ierr !<
729	INTEGER(iwp) :: ij !<
730	INTEGER(iwp) :: ip !<
731	INTEGER(iwp) :: ip_start !<
732	INTEGER(iwp) :: ip_end !<
733	INTEGER(iwp) :: istat !<
734	INTEGER(iwp) :: j !<
735	INTEGER(iwp) :: myindex !<
736	INTEGER(iwp) :: nr !<
737	INTEGER(iwp) :: target_pe !<
738	INTEGER(kind=MPI_ADDRESS_KIND) :: target_disp !<
739
740	LOGICAL :: lo_ptrans
741
742	INTEGER(iwp), DIMENSION(1) :: buf_shape !<
743
744	REAL(wp) :: t1 !<
745	REAL(wp) :: t2 !<
746	REAL(wp), POINTER, DIMENSION(:) :: buf !<
747	REAL(wp), POINTER, DIMENSION(:,:) :: data_2d !<
748	REAL(wp), POINTER, DIMENSION(:,:,:) :: data_3d !<
749	INTEGER(idp), POINTER, DIMENSION(:) :: ibuf !<
750	INTEGER(idp), POINTER, DIMENSION(:,:) :: idata_2d !<
751
752	TYPE(pedef), POINTER :: ape !<
753	TYPE(arraydef), POINTER :: ar !<
754
755
756	t1 = pmc_time()
757
758	IF(PRESENT(child_process_nr)) then
759	ip_start = child_process_nr
760	ip_end = child_process_nr
761	ELSE
762	ip_start = 1
763	ip_end = children(childid)%inter_npes
764	END IF
765
766	lo_ptrans = .FALSE.
767	IF ( PRESENT( particle_transfer)) lo_ptrans = particle_transfer
768
769	IF(ip_start == 1) THEN
770	!
771	!-- Wait for child to fill buffer
772	CALL MPI_BARRIER( children(childid)%intra_comm, ierr )
773	t2 = pmc_time() - t1
774	IF ( PRESENT( waittime ) ) waittime = t2
775
776	CALL MPI_BARRIER( children(childid)%intra_comm, ierr )
777	ENDIF
778
779	DO ip = ip_start,ip_end
780	ape => children(childid)%pes(ip)
781	DO j = 1, ape%nr_arrays
782	ar => ape%array_list(j)
783
784	IF ( ar%recvindex < 0 ) CYCLE
785
786	IF ( ar%dimkey == 2 .AND. .NOT.lo_ptrans ) THEN
787	nr = ape%nrele
788	ELSEIF ( ar%dimkey == 3 .AND. .NOT.lo_ptrans ) THEN
789	nr = ape%nrele * ar%a_dim(4)
790	ELSE IF ( ar%dimkey == 22 .AND. lo_ptrans) THEN
791	nr = ape%nrele
792	ELSE
793	CYCLE !particle array are not transfered here
794	ENDIF
795	buf_shape(1) = nr
796	IF(lo_ptrans) THEN
797	CALL C_F_POINTER( ar%recvbuf, ibuf, buf_shape )
798	ELSE
799	CALL C_F_POINTER( ar%recvbuf, buf, buf_shape )
800	ENDIF
801
802	!
803	!-- MPI passive target RMA
804	IF ( nr > 0 ) THEN
805	target_disp = ar%recvindex - 1
806	!
807	!-- Child processes are located behind parent process
808	target_pe = ip - 1 + m_model_npes
809	CALL MPI_WIN_LOCK( MPI_LOCK_SHARED, target_pe, 0, &
810	children(childid)%win_parent_child, ierr )
811	IF(lo_ptrans) THEN
812	CALL MPI_GET( ibuf, nr8, MPI_BYTE, target_pe, target_disp, nr8, & !There is no MPI_INTEGER8 datatype
813	MPI_BYTE, children(childid)%win_parent_child, ierr )
814	ELSE
815	CALL MPI_GET( buf, nr, MPI_REAL, target_pe, target_disp, nr, &
816	MPI_REAL, children(childid)%win_parent_child, ierr )
817	ENDIF
818	CALL MPI_WIN_UNLOCK( target_pe, &
819	children(childid)%win_parent_child, ierr )
820	ENDIF
821	myindex = 1
822	IF ( ar%dimkey == 2 .AND. .NOT.lo_ptrans ) THEN
823
824	CALL C_F_POINTER( ar%data, data_2d, ar%a_dim(1:2) )
825	DO ij = 1, ape%nrele
826	data_2d(ape%locind(ij)%j,ape%locind(ij)%i) = buf(myindex)
827	myindex = myindex + 1
828	ENDDO
829
830	ELSEIF ( ar%dimkey == 3 .AND. .NOT.lo_ptrans ) THEN
831
832	CALL C_F_POINTER( ar%data, data_3d, ar%a_dim(1:3))
833	DO ij = 1, ape%nrele
834	data_3d(1:ar%a_dim(4),ape%locind(ij)%j,ape%locind(ij)%i) = &
835	buf(myindex:myindex+ar%a_dim(4)-1)
836	myindex = myindex + ar%a_dim(4)
837	ENDDO
838
839	ELSE IF ( ar%dimkey == 22 .AND. lo_ptrans) THEN
840
841	CALL C_F_POINTER( ar%data, idata_2d, ar%a_dim(1:2) )
842	DO ij = 1, ape%nrele
843	idata_2d(ape%locind(ij)%j,ape%locind(ij)%i) = ibuf(myindex)
844	myindex = myindex + 1
845	ENDDO
846
847	ENDIF
848	ENDDO
849	ENDDO
850
851	END SUBROUTINE pmc_s_getdata_from_buffer
852
853
854
855	SUBROUTINE get_da_names_from_child( childid )
856
857	!
858	!-- Get data array description and name from child
859	IMPLICIT NONE
860
861	INTEGER(iwp), INTENT(IN) :: childid !<
862
863	TYPE(da_namedef) :: myname !<
864
865	DO
866	CALL pmc_bcast( myname%couple_index, 0, comm=m_to_child_comm(childid) )
867	IF ( myname%couple_index == -1 ) EXIT
868	CALL pmc_bcast( myname%parentdesc, 0, comm=m_to_child_comm(childid) )
869	CALL pmc_bcast( myname%nameonparent, 0, comm=m_to_child_comm(childid) )
870	CALL pmc_bcast( myname%childdesc, 0, comm=m_to_child_comm(childid) )
871	CALL pmc_bcast( myname%nameonchild, 0, comm=m_to_child_comm(childid) )
872
873	CALL pmc_g_setname( children(childid), myname%couple_index, &
874	myname%nameonparent )
875	ENDDO
876
877	END SUBROUTINE get_da_names_from_child
878
879
880
881	SUBROUTINE pmc_s_setarray(childid, nrdims, dims, array_adr, second_adr, dimkey )
882
883	!
884	!-- Set array for child inter process 0
885	IMPLICIT NONE
886
887	INTEGER(iwp), INTENT(IN) :: childid !<
888	INTEGER(iwp), INTENT(IN) :: nrdims !<
889	INTEGER(iwp), INTENT(IN), DIMENSION(:) :: dims !<
890
891	TYPE(C_PTR), INTENT(IN) :: array_adr !<
892	TYPE(C_PTR), INTENT(IN), OPTIONAL :: second_adr !<
893	INTEGER(iwp), INTENT(IN), OPTIONAL :: dimkey !<
894
895	INTEGER(iwp) :: i !< local counter
896
897	TYPE(pedef), POINTER :: ape !<
898	TYPE(arraydef), POINTER :: ar !<
899
900
901	DO i = 1, children(childid)%inter_npes
902	ape => children(childid)%pes(i)
903	ar => ape%array_list(next_array_in_list)
904	ar%nrdims = nrdims
905	ar%dimkey = nrdims
906	IF(PRESENT(dimkey)) ar%dimkey = dimkey
907	ar%a_dim = dims
908	ar%data = array_adr
909	IF ( PRESENT( second_adr ) ) THEN
910	ar%po_data(1) = array_adr
911	ar%po_data(2) = second_adr
912	ELSE
913	ar%po_data(1) = C_NULL_PTR
914	ar%po_data(2) = C_NULL_PTR
915	ENDIF
916	ENDDO
917
918	END SUBROUTINE pmc_s_setarray
919
920
921
922	SUBROUTINE pmc_s_set_active_data_array( childid, iactive )
923
924	IMPLICIT NONE
925
926	INTEGER(iwp), INTENT(IN) :: childid !<
927	INTEGER(iwp), INTENT(IN) :: iactive !<
928
929	INTEGER(iwp) :: i !<
930	INTEGER(iwp) :: ip !<
931	INTEGER(iwp) :: j !<
932
933	TYPE(pedef), POINTER :: ape !<
934	TYPE(arraydef), POINTER :: ar !<
935
936	DO ip = 1, children(childid)%inter_npes
937	ape => children(childid)%pes(ip)
938	DO j = 1, ape%nr_arrays
939	ar => ape%array_list(j)
940	if(mod(ar%dimkey,10) == 2) CYCLE !Not for 2D array
941	IF ( iactive == 1 .OR. iactive == 2 ) THEN
942	ar%data = ar%po_data(iactive)
943	ENDIF
944	ENDDO
945	ENDDO
946
947	END SUBROUTINE pmc_s_set_active_data_array
948
949	INTEGER FUNCTION pmc_s_get_child_npes (child_id)
950	IMPLICIT NONE
951
952	INTEGER(iwp),INTENT(IN) :: child_id
953
954	pmc_s_get_child_npes = children(child_id)%inter_npes
955
956	RETURN
957	END FUNCTION pmc_s_get_child_npes
958
959
960	SUBROUTINE set_pe_index_list( childid, mychild, index_list, nrp )
961
962	IMPLICIT NONE
963
964	INTEGER(iwp), INTENT(IN) :: childid !<
965	INTEGER(iwp), INTENT(IN), DIMENSION(:,:) :: index_list !<
966	INTEGER(iwp), INTENT(IN) :: nrp !<
967
968	TYPE(childdef), INTENT(INOUT) :: mychild !<
969
970	INTEGER(iwp) :: i !<
971	INTEGER(iwp) :: ierr !<
972	INTEGER(iwp) :: ind !<
973	INTEGER(iwp) :: indwin !<
974	INTEGER(iwp) :: indwin2 !<
975	INTEGER(iwp) :: i2 !<
976	INTEGER(iwp) :: j !<
977	INTEGER(iwp) :: rempe !<
978	INTEGER(KIND=MPI_ADDRESS_KIND) :: winsize !<
979
980	INTEGER(iwp), DIMENSION(mychild%inter_npes) :: remind !<
981
982	INTEGER(iwp), DIMENSION(:), POINTER :: remindw !<
983	INTEGER(iwp), DIMENSION(:), POINTER :: rldef !<
984
985	TYPE(pedef), POINTER :: ape !<
986
987	!
988	!-- First, count entries for every remote child process
989	DO i = 1, mychild%inter_npes
990	ape => mychild%pes(i)
991	ape%nrele = 0
992	ENDDO
993	!
994	!-- Loop over number of coarse grid cells
995	DO j = 1, nrp
996	rempe = index_list(5,j) + 1 ! process number on remote process
997	ape => mychild%pes(rempe)
998	ape%nrele = ape%nrele + 1 ! Increment number of elements for this child process
999	ENDDO
1000
1001	DO i = 1, mychild%inter_npes
1002	ape => mychild%pes(i)
1003	ALLOCATE( ape%locind(ape%nrele) )
1004	ENDDO
1005
1006	remind = 0
1007	!
1008	!-- Second, create lists
1009	!-- Loop over number of coarse grid cells
1010	DO j = 1, nrp
1011	rempe = index_list(5,j) + 1
1012	ape => mychild%pes(rempe)
1013	remind(rempe) = remind(rempe)+1
1014	ind = remind(rempe)
1015	ape%locind(ind)%i = index_list(1,j)
1016	ape%locind(ind)%j = index_list(2,j)
1017	ENDDO
1018	!
1019	!-- Prepare number of elements for children processes
1020	CALL pmc_alloc_mem( rldef, mychild%inter_npes*2 )
1021	!
1022	!-- Number of child processes * size of INTEGER (i just arbitrary INTEGER)
1023	winsize = mychild%inter_npesSTORAGE_SIZE(i)/82
1024
1025	CALL MPI_WIN_CREATE( rldef, winsize, iwp, MPI_INFO_NULL, &
1026	mychild%intra_comm, indwin, ierr )
1027	!
1028	!-- Open window to set data
1029	CALL MPI_WIN_FENCE( 0, indwin, ierr )
1030
1031	rldef(1) = 0 ! index on remote process 0
1032	rldef(2) = remind(1) ! number of elements on remote process 0
1033	!
1034	!-- Reserve buffer for index array
1035	DO i = 2, mychild%inter_npes
1036	i2 = (i-1) * 2 + 1
1037	rldef(i2) = rldef(i2-2) + rldef(i2-1) * 2 ! index on remote process
1038	rldef(i2+1) = remind(i) ! number of elements on remote process
1039	ENDDO
1040	!
1041	!-- Close window to allow child to access data
1042	CALL MPI_WIN_FENCE( 0, indwin, ierr )
1043	!
1044	!-- Child has retrieved data
1045	CALL MPI_WIN_FENCE( 0, indwin, ierr )
1046
1047	i2 = 2 * mychild%inter_npes - 1
1048	winsize = ( rldef(i2) + rldef(i2+1) ) * 2
1049	!
1050	!-- Make sure, MPI_ALLOC_MEM works
1051	winsize = MAX( winsize, 1 )
1052
1053	CALL pmc_alloc_mem( remindw, INT( winsize ) )
1054
1055	CALL MPI_BARRIER( m_model_comm, ierr )
1056	CALL MPI_WIN_CREATE( remindw, winsize*STORAGE_SIZE(i)/8, iwp, MPI_INFO_NULL, &
1057	mychild%intra_comm, indwin2, ierr )
1058	!
1059	!-- Open window to set data
1060	CALL MPI_WIN_FENCE( 0, indwin2, ierr )
1061	!
1062	!-- Create the 2D index list
1063	DO j = 1, nrp
1064	rempe = index_list(5,j) + 1 ! process number on remote process
1065	ape => mychild%pes(rempe)
1066	i2 = rempe * 2 - 1
1067	ind = rldef(i2) + 1
1068	remindw(ind) = index_list(3,j)
1069	remindw(ind+1) = index_list(4,j)
1070	rldef(i2) = rldef(i2)+2
1071	ENDDO
1072	!
1073	!-- All data are set
1074	CALL MPI_WIN_FENCE( 0, indwin2, ierr )
1075	!
1076	!-- Don't know why, but this barrier is necessary before windows can be freed
1077	!-- TODO: find out why this is required
1078	CALL MPI_BARRIER( mychild%intra_comm, ierr )
1079
1080	CALL MPI_WIN_FREE( indwin, ierr )
1081	CALL MPI_WIN_FREE( indwin2, ierr )
1082
1083	!
1084	!-- TODO: check if the following idea needs to be done
1085	!-- Sollte funktionieren, Problem mit MPI implementation
1086	!-- https://www.lrz.de/services/software/parallel/mpi/onesided
1087	!-- CALL MPI_Free_mem (remindw, ierr)
1088
1089	END SUBROUTINE set_pe_index_list
1090
1091	#endif
1092	END MODULE pmc_parent

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