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source: palm/trunk/SOURCE/pmc_parent_mod.f90 @ 3477

Last change on this file since 3477 was 3251, checked in by raasch, 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 3251 2018-09-14 13:18:42Z maronga $
28	! explicit kind settings
29	!
30	! 3241 2018-09-12 15:02:00Z raasch
31	! unused variables removed
32	!
33	! 3182 2018-07-27 13:36:03Z suehring
34	! Comment extended
35	!
36	! 2841 2018-02-27 15:02:57Z Giersch
37	! Bugfix: wrong placement of include 'mpif.h' corrected
38	!
39	! 2809 2018-02-15 09:55:58Z schwenkel
40	! Bugfix for gfortran: Replace the function C_SIZEOF with STORAGE_SIZE
41	!
42	! 2801 2018-02-14 16:01:55Z thiele
43	! Introduce particle transfer in nested models.
44	!
45	! 2718 2018-01-02 08:49:38Z maronga
46	! Corrected "Former revisions" section
47	!
48	! 2696 2017-12-14 17:12:51Z kanani
49	! Change in file header (GPL part)
50	!
51	! 2599 2017-11-01 13:18:45Z hellstea
52	! Some cleanup and commenting improvements only.
53	!
54	! 2101 2017-01-05 16:42:31Z suehring
55	!
56	! 2000 2016-08-20 18:09:15Z knoop
57	! Forced header and separation lines into 80 columns
58	!
59	! 1938 2016-06-13 15:26:05Z hellstea
60	! Minor clean up.
61	!
62	! 1901 2016-05-04 15:39:38Z raasch
63	! Module renamed. Code clean up. The words server/client changed to parent/child.
64	!
65	! 1900 2016-05-04 15:27:53Z raasch
66	! re-formatted to match PALM style
67	!
68	! 1850 2016-04-08 13:29:27Z maronga
69	! Module renamed
70	!
71	!
72	! 1833 2016-04-07 14:23:03Z raasch
73	! gfortran requires pointer attributes for some array declarations,
74	! long line wrapped
75	!
76	! 1808 2016-04-05 19:44:00Z raasch
77	! MPI module used by default on all machines
78	!
79	! 1797 2016-03-21 16:50:28Z raasch
80	! introduction of different datatransfer modes
81	!
82	! 1791 2016-03-11 10:41:25Z raasch
83	! Debug write-statements commented out
84	!
85	! 1786 2016-03-08 05:49:27Z raasch
86	! change in child-parent data transfer: parent now gets data from child
87	! instead that child put's it to the parent
88	!
89	! 1779 2016-03-03 08:01:28Z raasch
90	! kind=dp replaced by wp,
91	! error messages removed or changed to PALM style, dim_order removed
92	! array management changed from linked list to sequential loop
93	!
94	! 1766 2016-02-29 08:37:15Z raasch
95	! modifications to allow for using PALM's pointer version
96	! +new routine pmc_s_set_active_data_array
97	!
98	! 1764 2016-02-28 12:45:19Z raasch
99	! cpp-statement added (nesting can only be used in parallel mode)
100	!
101	! 1762 2016-02-25 12:31:13Z hellstea
102	! Initial revision by K. Ketelsen
103	!
104	! Description:
105	! ------------
106	!
107	! Parent part of Palm Model Coupler
108	!------------------------------------------------------------------------------!
109
110	#if defined( __parallel )
111	USE, INTRINSIC :: ISO_C_BINDING
112
113	#if !defined( __mpifh )
114	USE MPI
115	#endif
116	USE kinds
117	USE pmc_general, &
118	ONLY: arraydef, childdef, da_namedef, da_namelen, pedef, &
119	pmc_g_setname, pmc_max_array, pmc_max_models, pmc_sort
120
121	USE pmc_handle_communicator, &
122	ONLY: m_model_comm,m_model_rank,m_model_npes, m_to_child_comm, &
123	m_world_rank, pmc_parent_for_child
124
125	USE pmc_mpi_wrapper, &
126	ONLY: pmc_alloc_mem, pmc_bcast, pmc_time
127
128	IMPLICIT NONE
129
130	#if defined( __mpifh )
131	INCLUDE "mpif.h"
132	#endif
133
134	PRIVATE
135	SAVE
136
137	TYPE childindexdef
138	INTEGER :: nrpoints !<
139	INTEGER, DIMENSION(:,:), ALLOCATABLE :: index_list_2d !<
140	END TYPE childindexdef
141
142	TYPE(childdef), DIMENSION(pmc_max_models),PUBLIC :: children !<
143	TYPE(childindexdef), DIMENSION(pmc_max_models) :: indchildren !<
144
145	INTEGER :: next_array_in_list = 0 !<
146
147
148	PUBLIC pmc_parent_for_child
149
150
151	INTERFACE pmc_parentinit
152	MODULE PROCEDURE pmc_parentinit
153	END INTERFACE pmc_parentinit
154
155	INTERFACE pmc_s_set_2d_index_list
156	MODULE PROCEDURE pmc_s_set_2d_index_list
157	END INTERFACE pmc_s_set_2d_index_list
158
159	INTERFACE pmc_s_clear_next_array_list
160	MODULE PROCEDURE pmc_s_clear_next_array_list
161	END INTERFACE pmc_s_clear_next_array_list
162
163	INTERFACE pmc_s_getnextarray
164	MODULE PROCEDURE pmc_s_getnextarray
165	END INTERFACE pmc_s_getnextarray
166
167	INTERFACE pmc_s_set_dataarray
168	MODULE PROCEDURE pmc_s_set_dataarray_2d
169	MODULE PROCEDURE pmc_s_set_dataarray_3d
170	MODULE PROCEDURE pmc_s_set_dataarray_ip2d
171	END INTERFACE pmc_s_set_dataarray
172
173	INTERFACE pmc_s_setind_and_allocmem
174	MODULE PROCEDURE pmc_s_setind_and_allocmem
175	END INTERFACE pmc_s_setind_and_allocmem
176
177	INTERFACE pmc_s_fillbuffer
178	MODULE PROCEDURE pmc_s_fillbuffer
179	END INTERFACE pmc_s_fillbuffer
180
181	INTERFACE pmc_s_getdata_from_buffer
182	MODULE PROCEDURE pmc_s_getdata_from_buffer
183	END INTERFACE pmc_s_getdata_from_buffer
184
185	INTERFACE pmc_s_set_active_data_array
186	MODULE PROCEDURE pmc_s_set_active_data_array
187	END INTERFACE pmc_s_set_active_data_array
188
189	INTERFACE pmc_s_get_child_npes
190	MODULE PROCEDURE pmc_s_get_child_npes
191	END INTERFACE pmc_s_get_child_npes
192
193	PUBLIC pmc_parentinit, pmc_s_clear_next_array_list, pmc_s_fillbuffer, &
194	pmc_s_getdata_from_buffer, pmc_s_getnextarray, &
195	pmc_s_setind_and_allocmem, pmc_s_set_active_data_array, &
196	pmc_s_set_dataarray, pmc_s_set_2d_index_list, &
197	pmc_s_get_child_npes
198
199	CONTAINS
200
201
202	SUBROUTINE pmc_parentinit
203
204	IMPLICIT NONE
205
206	INTEGER(iwp) :: childid !<
207	INTEGER(iwp) :: i !<
208	INTEGER(iwp) :: j !<
209	INTEGER(iwp) :: istat !<
210
211	DO i = 1, SIZE( pmc_parent_for_child )-1
212
213	childid = pmc_parent_for_child( i )
214
215	children(childid)%model_comm = m_model_comm
216	children(childid)%inter_comm = m_to_child_comm(childid)
217
218	!
219	!-- Get rank and size
220	CALL MPI_COMM_RANK( children(childid)%model_comm, &
221	children(childid)%model_rank, istat )
222	CALL MPI_COMM_SIZE( children(childid)%model_comm, &
223	children(childid)%model_npes, istat )
224	CALL MPI_COMM_REMOTE_SIZE( children(childid)%inter_comm, &
225	children(childid)%inter_npes, istat )
226	!
227	!-- Intra communicator is used for MPI_GET
228	CALL MPI_INTERCOMM_MERGE( children(childid)%inter_comm, .FALSE., &
229	children(childid)%intra_comm, istat )
230	CALL MPI_COMM_RANK( children(childid)%intra_comm, &
231	children(childid)%intra_rank, istat )
232
233	ALLOCATE( children(childid)%pes(children(childid)%inter_npes))
234	!
235	!-- Allocate array of TYPE arraydef for all child PEs to store information
236	!-- of the transfer array
237	DO j = 1, children(childid)%inter_npes
238	ALLOCATE( children(childid)%pes(j)%array_list(pmc_max_array) )
239	ENDDO
240
241	CALL get_da_names_from_child (childid)
242
243	ENDDO
244
245	END SUBROUTINE pmc_parentinit
246
247
248
249	SUBROUTINE pmc_s_set_2d_index_list( childid, index_list )
250
251	IMPLICIT NONE
252
253	INTEGER(iwp), INTENT(IN) :: childid !<
254	INTEGER(iwp), DIMENSION(:,:), INTENT(INOUT) :: index_list !<
255
256	INTEGER(iwp) :: ian !<
257	INTEGER(iwp) :: ie !<
258	INTEGER(iwp) :: ip !<
259	INTEGER(iwp) :: is !<
260	INTEGER(iwp) :: istat !<
261
262
263	IF ( m_model_rank == 0 ) THEN
264	!
265	!-- Sort to ascending parent process order
266	CALL pmc_sort( index_list, 6 )
267	is = 1
268	DO ip = 0, m_model_npes-1
269	!
270	!-- Split into parent processes
271	ie = is - 1
272	!
273	!-- There may be no entry for this process
274	IF ( is <= SIZE( index_list,2 ) .AND. ie >= 0 ) THEN
275	DO WHILE ( index_list(6,ie+1 ) == ip )
276	ie = ie + 1
277	IF ( ie == SIZE( index_list,2 ) ) EXIT
278	ENDDO
279	ian = ie - is + 1
280	ELSE
281	is = -1
282	ie = -2
283	ian = 0
284	ENDIF
285	!
286	!-- Send data to other parent processes
287	IF ( ip == 0 ) THEN
288	indchildren(childid)%nrpoints = ian
289	IF ( ian > 0) THEN
290	ALLOCATE( indchildren(childid)%index_list_2d(6,ian) )
291	indchildren(childid)%index_list_2d(:,1:ian) = &
292	index_list(:,is:ie)
293	ENDIF
294	ELSE
295	CALL MPI_SEND( ian, 1, MPI_INTEGER, ip, 1000, m_model_comm, &
296	istat )
297	IF ( ian > 0) THEN
298	CALL MPI_SEND( index_list(1,is), 6*ian, MPI_INTEGER, ip, &
299	1001, m_model_comm, istat )
300	ENDIF
301	ENDIF
302	is = ie + 1
303	ENDDO
304	ELSE
305	CALL MPI_RECV( indchildren(childid)%nrpoints, 1, MPI_INTEGER, 0, 1000, &
306	m_model_comm, MPI_STATUS_IGNORE, istat )
307	ian = indchildren(childid)%nrpoints
308	IF ( ian > 0 ) THEN
309	ALLOCATE( indchildren(childid)%index_list_2d(6,ian) )
310	CALL MPI_RECV( indchildren(childid)%index_list_2d, 6*ian, &
311	MPI_INTEGER, 0, 1001, m_model_comm, &
312	MPI_STATUS_IGNORE, istat)
313	ENDIF
314	ENDIF
315	CALL set_pe_index_list( children(childid), &
316	indchildren(childid)%index_list_2d, &
317	indchildren(childid)%nrpoints )
318
319	END SUBROUTINE pmc_s_set_2d_index_list
320
321
322
323	SUBROUTINE pmc_s_clear_next_array_list
324
325	IMPLICIT NONE
326
327	next_array_in_list = 0
328
329	END SUBROUTINE pmc_s_clear_next_array_list
330
331
332
333	LOGICAL FUNCTION pmc_s_getnextarray( childid, myname )
334
335	!
336	!-- Althoug there are no linked lists any more in PMC, this call still looks like working with a list
337
338	CHARACTER(LEN=*), INTENT(OUT) :: myname !<
339	INTEGER(iwp), INTENT(IN) :: childid !<
340
341	TYPE(arraydef), POINTER :: ar
342	TYPE(pedef), POINTER :: ape
343
344	next_array_in_list = next_array_in_list + 1
345	!
346	!-- Array names are the same on all children processes, so take first
347	!-- process to get the name
348	ape => children(childid)%pes(1)
349
350	IF ( next_array_in_list > ape%nr_arrays ) THEN
351	!
352	!-- All arrays are done
353	pmc_s_getnextarray = .FALSE.
354	RETURN
355	ENDIF
356
357	ar => ape%array_list(next_array_in_list)
358	myname = ar%name
359	!
360	!-- Return true if there is still an array in the list
361
362	pmc_s_getnextarray = .TRUE.
363
364	END FUNCTION pmc_s_getnextarray
365
366
367
368	SUBROUTINE pmc_s_set_dataarray_2d( childid, array, array_2 )
369
370	IMPLICIT NONE
371
372	INTEGER(iwp), INTENT(IN) :: childid !<
373
374	REAL(wp), INTENT(IN), DIMENSION(:,:), POINTER :: array !<
375	REAL(wp), INTENT(IN), DIMENSION(:,:), POINTER, OPTIONAL :: array_2 !<
376
377	INTEGER(iwp) :: nrdims !<
378	INTEGER(iwp), DIMENSION(4) :: dims !<
379	TYPE(C_PTR) :: array_adr !<
380	TYPE(C_PTR) :: second_adr !<
381
382
383	dims = 1
384	nrdims = 2
385	dims(1) = SIZE( array,1 )
386	dims(2) = SIZE( array,2 )
387	array_adr = C_LOC( array )
388
389	IF ( PRESENT( array_2 ) ) THEN
390	second_adr = C_LOC(array_2)
391	CALL pmc_s_setarray( childid, nrdims, dims, array_adr, &
392	second_adr = second_adr)
393	ELSE
394	CALL pmc_s_setarray( childid, nrdims, dims, array_adr )
395	ENDIF
396
397	END SUBROUTINE pmc_s_set_dataarray_2d
398
399	SUBROUTINE pmc_s_set_dataarray_ip2d( childid, array )
400
401	IMPLICIT NONE
402
403	INTEGER(iwp),INTENT(IN) :: childid !<
404
405	INTEGER(idp), INTENT(IN), DIMENSION(:,:), POINTER :: array !<
406
407	INTEGER(iwp) :: nrdims !<
408	INTEGER(iwp), DIMENSION(4) :: dims !<
409	TYPE(C_PTR) :: array_adr !<
410
411
412	dims = 1
413	nrdims = 2
414	dims(1) = SIZE( array,1 )
415	dims(2) = SIZE( array,2 )
416	array_adr = C_LOC( array )
417
418	CALL pmc_s_setarray( childid, nrdims, dims, array_adr , dimkey=22)
419
420	END SUBROUTINE pmc_s_set_dataarray_ip2d
421
422
423	SUBROUTINE pmc_s_set_dataarray_3d( childid, array, nz_cl, nz, array_2 )
424
425	IMPLICIT NONE
426
427	INTEGER(iwp), INTENT(IN) :: childid !<
428	INTEGER(iwp), INTENT(IN) :: nz !<
429	INTEGER(iwp), INTENT(IN) :: nz_cl !<
430
431	REAL(wp), INTENT(IN), DIMENSION(:,:,:), POINTER :: array !<
432	REAL(wp), INTENT(IN), DIMENSION(:,:,:), POINTER, OPTIONAL :: array_2 !<
433
434	INTEGER(iwp) :: nrdims !<
435	INTEGER(iwp), DIMENSION(4) :: dims !<
436	TYPE(C_PTR) :: array_adr !<
437	TYPE(C_PTR) :: second_adr !<
438
439	nrdims = 3
440	dims(1) = SIZE( array,1 )
441	dims(2) = SIZE( array,2 )
442	dims(3) = SIZE( array,3 )
443	dims(4) = nz_cl+dims(1)-nz ! works for first dimension 1:nz and 0:nz+1
444
445	array_adr = C_LOC(array)
446	!
447	!-- In PALM's pointer version, two indices have to be stored internally.
448	!-- The active address of the data array is set in swap_timelevel.
449	IF ( PRESENT( array_2 ) ) THEN
450	second_adr = C_LOC( array_2 )
451	CALL pmc_s_setarray( childid, nrdims, dims, array_adr, &
452	second_adr = second_adr)
453	ELSE
454	CALL pmc_s_setarray( childid, nrdims, dims, array_adr )
455	ENDIF
456
457	END SUBROUTINE pmc_s_set_dataarray_3d
458
459
460
461	SUBROUTINE pmc_s_setind_and_allocmem( childid )
462
463	USE control_parameters, &
464	ONLY: message_string
465
466	IMPLICIT NONE
467
468	!
469	!-- Naming convention for appendices: _pc -> parent to child transfer
470	!-- _cp -> child to parent transfer
471	!-- send -> parent to child transfer
472	!-- recv -> child to parent transfer
473	INTEGER(iwp), INTENT(IN) :: childid !<
474
475	INTEGER(iwp) :: arlen !<
476	INTEGER(iwp) :: i !<
477	INTEGER(iwp) :: ierr !<
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, &
597	INT( ape%nrele * ar%a_dim(4), MPI_ADDRESS_KIND ) )
598	ELSE
599	bufsize = MAX( bufsize, INT( ape%nrele, MPI_ADDRESS_KIND ) )
600	ENDIF
601	ar%recvindex = myindex
602	ENDDO
603	ENDDO
604	!
605	!-- Create RMA (one sided communication, RMA = Remote Memory Access) data buffer.
606	!-- The buffer for MPI_GET can be PE local, i.e. it can but must not be part of
607	!-- the MPI RMA window
608	CALL pmc_alloc_mem( base_array_cp, bufsize, base_ptr )
609	children(childid)%totalbuffersize = bufsize * wp
610
611	CALL MPI_BARRIER( children(childid)%intra_comm, ierr )
612	!
613	!-- Second stride: set buffer pointer
614	DO i = 1, children(childid)%inter_npes
615	ape => children(childid)%pes(i)
616	DO j = 1, ape%nr_arrays
617	ar => ape%array_list(j)
618	ar%recvbuf = base_ptr
619	ENDDO
620	ENDDO
621
622	END SUBROUTINE pmc_s_setind_and_allocmem
623
624
625
626	SUBROUTINE pmc_s_fillbuffer( childid, waittime, particle_transfer )
627
628	IMPLICIT NONE
629
630	INTEGER(iwp), INTENT(IN) :: childid !<
631
632	REAL(wp), INTENT(OUT), OPTIONAL :: waittime !<
633	LOGICAL, INTENT(IN), OPTIONAL :: particle_transfer !<
634
635
636	INTEGER(iwp) :: ierr !<
637	INTEGER(iwp) :: ij !<
638	INTEGER(iwp) :: ip !<
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) :: j !<
734	INTEGER(iwp) :: myindex !<
735	INTEGER(iwp) :: nr !<
736	INTEGER(iwp) :: target_pe !<
737	INTEGER(KIND=MPI_ADDRESS_KIND) :: target_disp !<
738
739	LOGICAL :: lo_ptrans
740
741	INTEGER(iwp), DIMENSION(1) :: buf_shape !<
742
743	REAL(wp) :: t1 !<
744	REAL(wp) :: t2 !<
745	REAL(wp), POINTER, DIMENSION(:) :: buf !<
746	REAL(wp), POINTER, DIMENSION(:,:) :: data_2d !<
747	REAL(wp), POINTER, DIMENSION(:,:,:) :: data_3d !<
748	INTEGER(idp), POINTER, DIMENSION(:) :: ibuf !<
749	INTEGER(idp), POINTER, DIMENSION(:,:) :: idata_2d !<
750
751	TYPE(pedef), POINTER :: ape !<
752	TYPE(arraydef), POINTER :: ar !<
753
754
755	t1 = pmc_time()
756
757	IF(PRESENT(child_process_nr)) then
758	ip_start = child_process_nr
759	ip_end = child_process_nr
760	ELSE
761	ip_start = 1
762	ip_end = children(childid)%inter_npes
763	END IF
764
765	lo_ptrans = .FALSE.
766	IF ( PRESENT( particle_transfer)) lo_ptrans = particle_transfer
767
768	IF(ip_start == 1) THEN
769	!
770	!-- Wait for child to fill buffer
771	CALL MPI_BARRIER( children(childid)%intra_comm, ierr )
772	t2 = pmc_time() - t1
773	IF ( PRESENT( waittime ) ) waittime = t2
774
775	CALL MPI_BARRIER( children(childid)%intra_comm, ierr )
776	ENDIF
777
778	DO ip = ip_start,ip_end
779	ape => children(childid)%pes(ip)
780	DO j = 1, ape%nr_arrays
781	ar => ape%array_list(j)
782
783	IF ( ar%recvindex < 0 ) CYCLE
784
785	IF ( ar%dimkey == 2 .AND. .NOT.lo_ptrans ) THEN
786	nr = ape%nrele
787	ELSEIF ( ar%dimkey == 3 .AND. .NOT.lo_ptrans ) THEN
788	nr = ape%nrele * ar%a_dim(4)
789	ELSE IF ( ar%dimkey == 22 .AND. lo_ptrans) THEN
790	nr = ape%nrele
791	ELSE
792	CYCLE !particle array are not transfered here
793	ENDIF
794	buf_shape(1) = nr
795	IF(lo_ptrans) THEN
796	CALL C_F_POINTER( ar%recvbuf, ibuf, buf_shape )
797	ELSE
798	CALL C_F_POINTER( ar%recvbuf, buf, buf_shape )
799	ENDIF
800
801	!
802	!-- MPI passive target RMA
803	IF ( nr > 0 ) THEN
804	target_disp = ar%recvindex - 1
805	!
806	!-- Child processes are located behind parent process
807	target_pe = ip - 1 + m_model_npes
808	CALL MPI_WIN_LOCK( MPI_LOCK_SHARED, target_pe, 0, &
809	children(childid)%win_parent_child, ierr )
810	IF(lo_ptrans) THEN
811	CALL MPI_GET( ibuf, nr8, MPI_BYTE, target_pe, target_disp, nr8, & !There is no MPI_INTEGER8 datatype
812	MPI_BYTE, children(childid)%win_parent_child, ierr )
813	ELSE
814	CALL MPI_GET( buf, nr, MPI_REAL, target_pe, target_disp, nr, &
815	MPI_REAL, children(childid)%win_parent_child, ierr )
816	ENDIF
817	CALL MPI_WIN_UNLOCK( target_pe, &
818	children(childid)%win_parent_child, ierr )
819	ENDIF
820	myindex = 1
821	IF ( ar%dimkey == 2 .AND. .NOT.lo_ptrans ) THEN
822
823	CALL C_F_POINTER( ar%data, data_2d, ar%a_dim(1:2) )
824	DO ij = 1, ape%nrele
825	data_2d(ape%locind(ij)%j,ape%locind(ij)%i) = buf(myindex)
826	myindex = myindex + 1
827	ENDDO
828
829	ELSEIF ( ar%dimkey == 3 .AND. .NOT.lo_ptrans ) THEN
830
831	CALL C_F_POINTER( ar%data, data_3d, ar%a_dim(1:3))
832	DO ij = 1, ape%nrele
833	data_3d(1:ar%a_dim(4),ape%locind(ij)%j,ape%locind(ij)%i) = &
834	buf(myindex:myindex+ar%a_dim(4)-1)
835	myindex = myindex + ar%a_dim(4)
836	ENDDO
837
838	ELSE IF ( ar%dimkey == 22 .AND. lo_ptrans) THEN
839
840	CALL C_F_POINTER( ar%data, idata_2d, ar%a_dim(1:2) )
841	DO ij = 1, ape%nrele
842	idata_2d(ape%locind(ij)%j,ape%locind(ij)%i) = ibuf(myindex)
843	myindex = myindex + 1
844	ENDDO
845
846	ENDIF
847	ENDDO
848	ENDDO
849
850	END SUBROUTINE pmc_s_getdata_from_buffer
851
852
853
854	SUBROUTINE get_da_names_from_child( childid )
855
856	!
857	!-- Get data array description and name from child
858	IMPLICIT NONE
859
860	INTEGER(iwp), INTENT(IN) :: childid !<
861
862	TYPE(da_namedef) :: myname !<
863
864	DO
865	CALL pmc_bcast( myname%couple_index, 0, comm=m_to_child_comm(childid) )
866
867	IF ( myname%couple_index == -1 ) EXIT
868
869	CALL pmc_bcast( myname%parentdesc, 0, comm=m_to_child_comm(childid) )
870	CALL pmc_bcast( myname%nameonparent, 0, comm=m_to_child_comm(childid) )
871	CALL pmc_bcast( myname%childdesc, 0, comm=m_to_child_comm(childid) )
872	CALL pmc_bcast( myname%nameonchild, 0, comm=m_to_child_comm(childid) )
873
874	CALL pmc_g_setname( children(childid), myname%couple_index, &
875	myname%nameonparent )
876	ENDDO
877
878	END SUBROUTINE get_da_names_from_child
879
880
881
882	SUBROUTINE pmc_s_setarray(childid, nrdims, dims, array_adr, second_adr, dimkey )
883
884	!
885	!-- Set array for child inter process 0
886	IMPLICIT NONE
887
888	INTEGER(iwp), INTENT(IN) :: childid !<
889	INTEGER(iwp), INTENT(IN) :: nrdims !<
890	INTEGER(iwp), INTENT(IN), DIMENSION(:) :: dims !<
891
892	TYPE(C_PTR), INTENT(IN) :: array_adr !<
893	TYPE(C_PTR), INTENT(IN), OPTIONAL :: second_adr !<
894	INTEGER(iwp), INTENT(IN), OPTIONAL :: dimkey !<
895
896	INTEGER(iwp) :: i !< local counter
897
898	TYPE(pedef), POINTER :: ape !<
899	TYPE(arraydef), POINTER :: ar !<
900
901
902	DO i = 1, children(childid)%inter_npes
903	ape => children(childid)%pes(i)
904	ar => ape%array_list(next_array_in_list)
905	ar%nrdims = nrdims
906	ar%dimkey = nrdims
907	IF(PRESENT(dimkey)) ar%dimkey = dimkey
908	ar%a_dim = dims
909	ar%data = array_adr
910	IF ( PRESENT( second_adr ) ) THEN
911	ar%po_data(1) = array_adr
912	ar%po_data(2) = second_adr
913	ELSE
914	ar%po_data(1) = C_NULL_PTR
915	ar%po_data(2) = C_NULL_PTR
916	ENDIF
917	ENDDO
918
919	END SUBROUTINE pmc_s_setarray
920
921
922
923	SUBROUTINE pmc_s_set_active_data_array( childid, iactive )
924
925	IMPLICIT NONE
926
927	INTEGER(iwp), INTENT(IN) :: childid !<
928	INTEGER(iwp), INTENT(IN) :: iactive !<
929
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( mychild, index_list, nrp )
961
962	IMPLICIT NONE
963
964	INTEGER(iwp), INTENT(IN), DIMENSION(:,:) :: index_list !<
965	INTEGER(iwp), INTENT(IN) :: nrp !<
966
967	TYPE(childdef), INTENT(INOUT) :: mychild !<
968
969	INTEGER(iwp) :: i !<
970	INTEGER(iwp) :: ierr !<
971	INTEGER(iwp) :: ind !<
972	INTEGER(iwp) :: indwin !<
973	INTEGER(iwp) :: indwin2 !<
974	INTEGER(iwp) :: i2 !<
975	INTEGER(iwp) :: j !<
976	INTEGER(iwp) :: rempe !<
977	INTEGER(KIND=MPI_ADDRESS_KIND) :: winsize !<
978
979	INTEGER(iwp), DIMENSION(mychild%inter_npes) :: remind !<
980
981	INTEGER(iwp), DIMENSION(:), POINTER :: remindw !<
982	INTEGER(iwp), DIMENSION(:), POINTER :: rldef !<
983
984	TYPE(pedef), POINTER :: ape !<
985
986	!
987	!-- First, count entries for every remote child process
988	DO i = 1, mychild%inter_npes
989	ape => mychild%pes(i)
990	ape%nrele = 0
991	ENDDO
992	!
993	!-- Loop over number of coarse grid cells
994	DO j = 1, nrp
995	rempe = index_list(5,j) + 1 ! process number on remote process
996	ape => mychild%pes(rempe)
997	ape%nrele = ape%nrele + 1 ! Increment number of elements for this child process
998	ENDDO
999
1000	DO i = 1, mychild%inter_npes
1001	ape => mychild%pes(i)
1002	ALLOCATE( ape%locind(ape%nrele) )
1003	ENDDO
1004
1005	remind = 0
1006	!
1007	!-- Second, create lists
1008	!-- Loop over number of coarse grid cells
1009	DO j = 1, nrp
1010	rempe = index_list(5,j) + 1
1011	ape => mychild%pes(rempe)
1012	remind(rempe) = remind(rempe)+1
1013	ind = remind(rempe)
1014	ape%locind(ind)%i = index_list(1,j)
1015	ape%locind(ind)%j = index_list(2,j)
1016	ENDDO
1017	!
1018	!-- Prepare number of elements for children processes
1019	CALL pmc_alloc_mem( rldef, mychild%inter_npes*2 )
1020	!
1021	!-- Number of child processes * size of INTEGER (i just arbitrary INTEGER)
1022	winsize = mychild%inter_npesSTORAGE_SIZE(i)/82
1023
1024	CALL MPI_WIN_CREATE( rldef, winsize, iwp, MPI_INFO_NULL, &
1025	mychild%intra_comm, indwin, ierr )
1026	!
1027	!-- Open window to set data
1028	CALL MPI_WIN_FENCE( 0, indwin, ierr )
1029
1030	rldef(1) = 0 ! index on remote process 0
1031	rldef(2) = remind(1) ! number of elements on remote process 0
1032	!
1033	!-- Reserve buffer for index array
1034	DO i = 2, mychild%inter_npes
1035	i2 = (i-1) * 2 + 1
1036	rldef(i2) = rldef(i2-2) + rldef(i2-1) * 2 ! index on remote process
1037	rldef(i2+1) = remind(i) ! number of elements on remote process
1038	ENDDO
1039	!
1040	!-- Close window to allow child to access data
1041	CALL MPI_WIN_FENCE( 0, indwin, ierr )
1042	!
1043	!-- Child has retrieved data
1044	CALL MPI_WIN_FENCE( 0, indwin, ierr )
1045
1046	i2 = 2 * mychild%inter_npes - 1
1047	winsize = ( rldef(i2) + rldef(i2+1) ) * 2
1048	!
1049	!-- Make sure, MPI_ALLOC_MEM works
1050	winsize = MAX( winsize, INT( 1, MPI_ADDRESS_KIND ) )
1051
1052	CALL pmc_alloc_mem( remindw, INT( winsize ) )
1053
1054	CALL MPI_BARRIER( m_model_comm, ierr )
1055	CALL MPI_WIN_CREATE( remindw, winsize*STORAGE_SIZE(i)/8, iwp, MPI_INFO_NULL, &
1056	mychild%intra_comm, indwin2, ierr )
1057	!
1058	!-- Open window to set data
1059	CALL MPI_WIN_FENCE( 0, indwin2, ierr )
1060	!
1061	!-- Create the 2D index list
1062	DO j = 1, nrp
1063	rempe = index_list(5,j) + 1 ! process number on remote process
1064	ape => mychild%pes(rempe)
1065	i2 = rempe * 2 - 1
1066	ind = rldef(i2) + 1
1067	remindw(ind) = index_list(3,j)
1068	remindw(ind+1) = index_list(4,j)
1069	rldef(i2) = rldef(i2)+2
1070	ENDDO
1071	!
1072	!-- All data are set
1073	CALL MPI_WIN_FENCE( 0, indwin2, ierr )
1074	!
1075	!-- Don't know why, but this barrier is necessary before windows can be freed
1076	!-- TODO: find out why this is required
1077	CALL MPI_BARRIER( mychild%intra_comm, ierr )
1078
1079	CALL MPI_WIN_FREE( indwin, ierr )
1080	CALL MPI_WIN_FREE( indwin2, ierr )
1081
1082	!
1083	!-- TODO: check if the following idea needs to be done
1084	!-- Sollte funktionieren, Problem mit MPI implementation
1085	!-- https://www.lrz.de/services/software/parallel/mpi/onesided
1086	!-- CALL MPI_Free_mem (remindw, ierr)
1087
1088	END SUBROUTINE set_pe_index_list
1089
1090	#endif
1091	END MODULE pmc_parent

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