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source: palm/trunk/SOURCE/pmc_handle_communicator_mod.f90 @ 3880

Last change on this file since 3880 was 3819, checked in by hellstea, 6 years ago
Adjustable anterpolation buffer introduced on all nest boundaries
Property svn:keywords set to `Id`
File size: 20.1 KB

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1	!> @file pmc_handle_communicator_mod.f90
2	!------------------------------------------------------------------------------!
3	! This file is part of the PALM model system.
4	!
5	! PALM is free software: you can redistribute it and/or modify it under the
6	! terms of the GNU General Public License as published by the Free Software
7	! Foundation, either version 3 of the License, or (at your option) any later
8	! version.
9	!
10	! PALM is distributed in the hope that it will be useful, but WITHOUT ANY
11	! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
12	! A PARTICULAR PURPOSE. See the GNU General Public License for more details.
13	!
14	! You should have received a copy of the GNU General Public License along with
15	! PALM. If not, see <http://www.gnu.org/licenses/>.
16	!
17	! Copyright 1997-2019 Leibniz Universitaet Hannover
18	!------------------------------------------------------------------------------!
19	!
20	! Current revisions:
21	! ------------------
22	!
23	!
24	! Former revisions:
25	! -----------------
26	! $Id: pmc_handle_communicator_mod.f90 3819 2019-03-27 11:01:36Z knoop $
27	! Adjustable anterpolation buffer introduced on all nest boundaries, it is controlled
28	! by the new nesting_parameters parameter anterpolation_buffer_width.
29	!
30	! 3655 2019-01-07 16:51:22Z knoop
31	! nestpar renamed to nesting_parameters
32	!
33	! 2841 2018-02-27 15:02:57Z knoop
34	! Bugfix: wrong placement of include 'mpif.h' corrected
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	! Bugfix, give Intent(inout) attributes in routine reading nestpar-namelist (MS)
45	!
46	! 2599 2017-11-01 13:18:45Z hellstea
47	! Separate peer communicator peer_comm introduced for MPI_INTERCOMM_CREATE.
48	! Some cleanup and commenting improvements.
49	!
50	! 2516 2017-10-04 11:03:04Z suehring
51	! Remove tabs
52	!
53	! 2514 2017-10-04 09:52:37Z suehring
54	! Bugfix, set filepointer to the beginning of the file after namelist read,
55	! in order to assure that further namelists are also found.
56	!
57	! 2279 2017-06-12 15:23:44Z suehring
58	! Error message text changed
59	!
60	! 2101 2017-01-05 16:42:31Z suehring
61	!
62	! 2013 2016-09-21 13:07:56Z suehring
63	! Bugfix in format descriptor
64	!
65	! 2000 2016-08-20 18:09:15Z knoop
66	! Forced header and separation lines into 80 columns
67	!
68	! 1938 2016-06-13 15:26:05Z hellstea
69	! Minor clean-up.
70	!
71	! 1901 2016-05-04 15:39:38Z raasch
72	! Initial version of purely vertical nesting introduced.
73	! Code clean up. The words server/client changed to parent/child.
74	!
75	! 1900 2016-05-04 15:27:53Z raasch
76	! re-formatting to match PALM style
77	!
78	! 1882 2016-04-20 15:24:46Z hellstea
79	! MPI_BCAST-calls to broadcast nesting_mode and nesting_datatransfer_mode
80	! are moved out from the DO i = 1, m_ncpl loop.
81	!
82	! 1850 2016-04-08 13:29:27Z maronga
83	! Module renamed
84	!
85	! 1808 2016-04-05 19:44:00Z raasch
86	! MPI module used by default on all machines
87	!
88	! 1797 2016-03-21 16:50:28Z raasch
89	! introduction of different datatransfer modes,
90	! export of comm_world_nesting
91	!
92	! 1791 2016-03-11 10:41:25Z raasch
93	! m_nrofcpl renamed m_ncpl,
94	! pmc_get_local_model_info renamed pmc_get_model_info, some keywords also
95	! renamed and some added,
96	! debug write-statements commented out
97	!
98	! 1786 2016-03-08 05:49:27Z raasch
99	! Bugfix: nesting_mode is broadcast now
100	!
101	! 1779 2016-03-03 08:01:28Z raasch
102	! only the total number of PEs is given in the nestpar-NAMELIST,
103	! additional comments included
104	!
105	! 1764 2016-02-28 12:45:19Z raasch
106	! pmc_layout type: comm_cpl and comm_parent removed, character "name" moved at
107	! the beginning of the variable list,
108	! domain layout is read with new NAMELIST nestpar from standard file PARIN,
109	! MPI-datatype REAL8 replaced by REAL, kind=8 replaced by wp,
110	! variable domain_layouts instead of m_couplers introduced for this NAMELIST,
111	! general format changed to PALM style
112	!
113	! 1762 2016-02-25 12:31:13Z hellstea
114	! Initial revision by K. Ketelsen
115	!
116	! Description:
117	! ------------
118	! Handle MPI communicator in PALM model coupler
119	!-------------------------------------------------------------------------------!
120	MODULE PMC_handle_communicator
121	#if defined( __parallel )
122	USE kinds
123
124	#if !defined( __mpifh )
125	USE MPI
126	#endif
127
128	USE pmc_general, &
129	ONLY: pmc_status_ok, pmc_status_error, pmc_max_models
130	USE control_parameters, &
131	ONLY: message_string
132
133	IMPLICIT NONE
134
135	#if defined( __mpifh )
136	INCLUDE "mpif.h"
137	#endif
138
139	TYPE pmc_layout
140
141	CHARACTER(LEN=32) :: name
142
143	INTEGER :: id !<
144	INTEGER :: parent_id !<
145	INTEGER :: npe_total !<
146
147	REAL(wp) :: lower_left_x !<
148	REAL(wp) :: lower_left_y !<
149
150	END TYPE pmc_layout
151
152	PUBLIC pmc_status_ok, pmc_status_error
153
154	INTEGER, PARAMETER, PUBLIC :: pmc_error_npes = 1 !< illegal number of processes
155	INTEGER, PARAMETER, PUBLIC :: pmc_namelist_error = 2 !< error(s) in nesting_parameters namelist
156	INTEGER, PARAMETER, PUBLIC :: pmc_no_namelist_found = 3 !< no couple layout namelist found
157
158	INTEGER :: m_world_comm !< global nesting communicator
159	INTEGER :: m_my_cpl_id !< coupler id of this model
160	INTEGER :: m_parent_id !< coupler id of parent of this model
161	INTEGER :: m_ncpl !< number of couplers given in nesting_parameters namelist
162
163	TYPE(pmc_layout), PUBLIC, DIMENSION(pmc_max_models) :: m_couplers !< information of all couplers
164
165	INTEGER, PUBLIC :: m_model_comm !< communicator of this model
166	INTEGER, PUBLIC :: m_to_parent_comm !< communicator to the parent
167	INTEGER, PUBLIC :: m_world_rank !<
168	INTEGER :: m_world_npes !<
169	INTEGER, PUBLIC :: m_model_rank !<
170	INTEGER, PUBLIC :: m_model_npes !<
171	INTEGER :: m_parent_remote_size !< number of processes in the parent model
172	INTEGER :: peer_comm !< peer_communicator for inter communicators
173
174	INTEGER, DIMENSION(pmc_max_models), PUBLIC :: m_to_child_comm !< communicator to the child(ren)
175	INTEGER, DIMENSION(:), POINTER, PUBLIC :: pmc_parent_for_child !<
176
177
178	INTERFACE pmc_is_rootmodel
179	MODULE PROCEDURE pmc_is_rootmodel
180	END INTERFACE pmc_is_rootmodel
181
182	INTERFACE pmc_get_model_info
183	MODULE PROCEDURE pmc_get_model_info
184	END INTERFACE pmc_get_model_info
185
186	PUBLIC pmc_get_model_info, pmc_init_model, pmc_is_rootmodel
187
188	CONTAINS
189
190	SUBROUTINE pmc_init_model( comm, nesting_datatransfer_mode, nesting_mode, &
191	anterpolation_buffer_width, pmc_status )
192
193	USE control_parameters, &
194	ONLY: message_string
195
196	USE pegrid, &
197	ONLY: myid
198
199	IMPLICIT NONE
200
201	CHARACTER(LEN=8), INTENT(INOUT) :: nesting_mode !<
202	CHARACTER(LEN=7), INTENT(INOUT) :: nesting_datatransfer_mode !<
203
204	INTEGER, INTENT(INOUT) :: anterpolation_buffer_width !< Boundary buffer width for anterpolation
205	INTEGER, INTENT(INOUT) :: comm !<
206	INTEGER, INTENT(INOUT) :: pmc_status !<
207
208	INTEGER :: childcount !<
209	INTEGER :: i !<
210	INTEGER :: ierr !<
211	INTEGER :: istat !<
212	INTEGER :: m_my_cpl_rank !<
213	INTEGER :: tag !<
214
215	INTEGER, DIMENSION(pmc_max_models) :: activeparent ! I am active parent for this child ID
216	INTEGER, DIMENSION(pmc_max_models+1) :: start_pe
217
218	pmc_status = pmc_status_ok
219	comm = -1
220	m_world_comm = MPI_COMM_WORLD
221	m_my_cpl_id = -1
222	childcount = 0
223	activeparent = -1
224	start_pe(:) = 0
225
226	CALL MPI_COMM_RANK( MPI_COMM_WORLD, m_world_rank, istat )
227	CALL MPI_COMM_SIZE( MPI_COMM_WORLD, m_world_npes, istat )
228	!
229	!-- Only process 0 of root model reads
230	IF ( m_world_rank == 0 ) THEN
231
232	CALL read_coupling_layout( nesting_datatransfer_mode, nesting_mode, &
233	anterpolation_buffer_width, pmc_status )
234
235	IF ( pmc_status /= pmc_no_namelist_found .AND. &
236	pmc_status /= pmc_namelist_error ) &
237	THEN
238	!
239	!-- Calculate start PE of every model
240	start_pe(1) = 0
241	DO i = 2, m_ncpl+1
242	start_pe(i) = start_pe(i-1) + m_couplers(i-1)%npe_total
243	ENDDO
244
245	!
246	!-- The sum of numbers of processes requested by all the domains
247	!-- must be equal to the total number of processes of the run
248	IF ( start_pe(m_ncpl+1) /= m_world_npes ) THEN
249	WRITE ( message_string, '(2A,I6,2A,I6,A)' ) &
250	'nesting-setup requires different number of ', &
251	'MPI procs (', start_pe(m_ncpl+1), ') than ', &
252	'provided (', m_world_npes,')'
253	CALL message( 'pmc_init_model', 'PA0229', 3, 2, 0, 6, 0 )
254	ENDIF
255
256	ENDIF
257
258	ENDIF
259	!
260	!-- Broadcast the read status. This synchronises all other processes with
261	!-- process 0 of the root model. Without synchronisation, they would not
262	!-- behave in the correct way (e.g. they would not return in case of a
263	!-- missing NAMELIST).
264	CALL MPI_BCAST( pmc_status, 1, MPI_INTEGER, 0, MPI_COMM_WORLD, istat )
265
266	IF ( pmc_status == pmc_no_namelist_found ) THEN
267	!
268	!-- Not a nested run; return the MPI_WORLD communicator
269	comm = MPI_COMM_WORLD
270	RETURN
271
272	ELSEIF ( pmc_status == pmc_namelist_error ) THEN
273	!
274	!-- Only the root model gives the error message. Others are aborted by the
275	!-- message-routine with MPI_ABORT. Must be done this way since myid and
276	!-- comm2d have not yet been assigned at this point.
277	IF ( m_world_rank == 0 ) THEN
278	message_string = 'errors in \$nesting_parameters'
279	CALL message( 'pmc_init_model', 'PA0223', 3, 2, 0, 6, 0 )
280	ENDIF
281
282	ENDIF
283
284	CALL MPI_BCAST( m_ncpl, 1, MPI_INTEGER, 0, MPI_COMM_WORLD, istat )
285	CALL MPI_BCAST( start_pe, m_ncpl+1, MPI_INTEGER, 0, MPI_COMM_WORLD, istat )
286	!
287	!-- Broadcast coupling layout
288	DO i = 1, m_ncpl
289	CALL MPI_BCAST( m_couplers(i)%name, LEN( m_couplers(i)%name ), &
290	MPI_CHARACTER, 0, MPI_COMM_WORLD, istat )
291	CALL MPI_BCAST( m_couplers(i)%id, 1, MPI_INTEGER, 0, &
292	MPI_COMM_WORLD, istat )
293	CALL MPI_BCAST( m_couplers(i)%Parent_id, 1, MPI_INTEGER, 0, &
294	MPI_COMM_WORLD, istat )
295	CALL MPI_BCAST( m_couplers(i)%npe_total, 1, MPI_INTEGER, 0, &
296	MPI_COMM_WORLD, istat )
297	CALL MPI_BCAST( m_couplers(i)%lower_left_x, 1, MPI_REAL, 0, &
298	MPI_COMM_WORLD, istat )
299	CALL MPI_BCAST( m_couplers(i)%lower_left_y, 1, MPI_REAL, 0, &
300	MPI_COMM_WORLD, istat )
301	ENDDO
302	CALL MPI_BCAST( nesting_mode, LEN( nesting_mode ), MPI_CHARACTER, 0, &
303	MPI_COMM_WORLD, istat )
304	CALL MPI_BCAST( nesting_datatransfer_mode, LEN(nesting_datatransfer_mode), &
305	MPI_CHARACTER, 0, MPI_COMM_WORLD, istat )
306	!
307	!-- Assign global MPI processes to individual models by setting the couple id
308	DO i = 1, m_ncpl
309	IF ( m_world_rank >= start_pe(i) .AND. m_world_rank < start_pe(i+1) ) &
310	THEN
311	m_my_cpl_id = i
312	EXIT
313	ENDIF
314	ENDDO
315	m_my_cpl_rank = m_world_rank - start_pe(i)
316	!
317	!-- MPI_COMM_WORLD is the communicator for ALL models (MPI-1 approach).
318	!-- The communictors for the individual models as created by MPI_COMM_SPLIT.
319	!-- The color of the model is represented by the coupler id
320	CALL MPI_COMM_SPLIT( MPI_COMM_WORLD, m_my_cpl_id, m_my_cpl_rank, comm, &
321	istat )
322	!
323	!-- Get size and rank of the model running on this process
324	CALL MPI_COMM_RANK( comm, m_model_rank, istat )
325	CALL MPI_COMM_SIZE( comm, m_model_npes, istat )
326	!
327	!-- Broadcast (from process 0) the parent id and id of every model
328	DO i = 1, m_ncpl
329	CALL MPI_BCAST( m_couplers(i)%parent_id, 1, MPI_INTEGER, 0, &
330	MPI_COMM_WORLD, istat )
331	CALL MPI_BCAST( m_couplers(i)%id, 1, MPI_INTEGER, 0, &
332	MPI_COMM_WORLD, istat )
333	ENDDO
334	!
335	!-- Save the current model communicator for pmc internal use
336	m_model_comm = comm
337
338	!
339	!-- Create intercommunicator between the parent and children.
340	!-- MPI_INTERCOMM_CREATE creates an intercommunicator between 2 groups of
341	!-- different colors.
342	!-- The grouping was done above with MPI_COMM_SPLIT.
343	!-- A duplicate of MPI_COMM_WORLD is created and used as peer communicator
344	!-- (peer_comm) for MPI_INTERCOMM_CREATE.
345	CALL MPI_COMM_DUP( MPI_COMM_WORLD, peer_comm, ierr )
346	DO i = 2, m_ncpl
347	IF ( m_couplers(i)%parent_id == m_my_cpl_id ) THEN
348	!
349	!-- Identify all children models of the current model and create
350	!-- inter-communicators to connect between the current model and its
351	!-- children models.
352	tag = 500 + i
353	CALL MPI_INTERCOMM_CREATE( comm, 0, peer_comm, start_pe(i), &
354	tag, m_to_child_comm(i), istat)
355	childcount = childcount + 1
356	activeparent(i) = 1
357	ELSEIF ( i == m_my_cpl_id) THEN
358	!
359	!-- Create an inter-communicator to connect between the current
360	!-- model and its parent model.
361	tag = 500 + i
362	CALL MPI_INTERCOMM_CREATE( comm, 0, peer_comm, &
363	start_pe(m_couplers(i)%parent_id), &
364	tag, m_to_parent_comm, istat )
365	ENDIF
366	ENDDO
367	!
368	!-- If I am a parent, count the number of children I have.
369	!-- Although this loop is symmetric on all processes, the "activeparent" flag
370	!-- is true (==1) on the respective individual process only.
371	ALLOCATE( pmc_parent_for_child(childcount+1) )
372
373	childcount = 0
374	DO i = 2, m_ncpl
375	IF ( activeparent(i) == 1 ) THEN
376	childcount = childcount + 1
377	pmc_parent_for_child(childcount) = i
378	ENDIF
379	ENDDO
380	!
381	!-- Get the size of the parent model
382	IF ( m_my_cpl_id > 1 ) THEN
383	CALL MPI_COMM_REMOTE_SIZE( m_to_parent_comm, m_parent_remote_size, &
384	istat )
385	ELSE
386	!
387	!-- The root model does not have a parent
388	m_parent_remote_size = -1
389	ENDIF
390	!
391	!-- Set myid to non-zero value except for the root domain. This is a setting
392	!-- for the message routine which is called at the end of pmci_init. That
393	!-- routine outputs messages for myid = 0, only. However, myid has not been
394	!-- assigened so far, so that all processes of the root model would output a
395	!-- message. To avoid this, set myid to some other value except for process 0
396	!-- of the root domain.
397	IF ( m_world_rank /= 0 ) myid = 1
398
399	END SUBROUTINE PMC_init_model
400
401
402
403	SUBROUTINE pmc_get_model_info( comm_world_nesting, cpl_id, cpl_name, &
404	cpl_parent_id, lower_left_x, lower_left_y, &
405	ncpl, npe_total, request_for_cpl_id )
406	!
407	!-- Provide module private variables of the pmc for PALM
408
409	USE kinds
410
411	IMPLICIT NONE
412
413	CHARACTER(LEN=*), INTENT(OUT), OPTIONAL :: cpl_name !<
414
415	INTEGER, INTENT(IN), OPTIONAL :: request_for_cpl_id !<
416
417	INTEGER, INTENT(OUT), OPTIONAL :: comm_world_nesting !<
418	INTEGER, INTENT(OUT), OPTIONAL :: cpl_id !<
419	INTEGER, INTENT(OUT), OPTIONAL :: cpl_parent_id !<
420	INTEGER, INTENT(OUT), OPTIONAL :: ncpl !<
421	INTEGER, INTENT(OUT), OPTIONAL :: npe_total !<
422
423	INTEGER :: requested_cpl_id !<
424
425	REAL(wp), INTENT(OUT), OPTIONAL :: lower_left_x !<
426	REAL(wp), INTENT(OUT), OPTIONAL :: lower_left_y !<
427
428	!
429	!-- Set the requested coupler id
430	IF ( PRESENT( request_for_cpl_id ) ) THEN
431	requested_cpl_id = request_for_cpl_id
432	!
433	!-- Check for allowed range of values
434	IF ( requested_cpl_id < 1 .OR. requested_cpl_id > m_ncpl ) RETURN
435	ELSE
436	requested_cpl_id = m_my_cpl_id
437	ENDIF
438	!
439	!-- Return the requested information
440	IF ( PRESENT( comm_world_nesting ) ) THEN
441	comm_world_nesting = m_world_comm
442	ENDIF
443	IF ( PRESENT( cpl_id ) ) THEN
444	cpl_id = requested_cpl_id
445	ENDIF
446	IF ( PRESENT( cpl_parent_id ) ) THEN
447	cpl_parent_id = m_couplers(requested_cpl_id)%parent_id
448	ENDIF
449	IF ( PRESENT( cpl_name ) ) THEN
450	cpl_name = m_couplers(requested_cpl_id)%name
451	ENDIF
452	IF ( PRESENT( ncpl ) ) THEN
453	ncpl = m_ncpl
454	ENDIF
455	IF ( PRESENT( npe_total ) ) THEN
456	npe_total = m_couplers(requested_cpl_id)%npe_total
457	ENDIF
458	IF ( PRESENT( lower_left_x ) ) THEN
459	lower_left_x = m_couplers(requested_cpl_id)%lower_left_x
460	ENDIF
461	IF ( PRESENT( lower_left_y ) ) THEN
462	lower_left_y = m_couplers(requested_cpl_id)%lower_left_y
463	ENDIF
464
465	END SUBROUTINE pmc_get_model_info
466
467
468
469	LOGICAL function pmc_is_rootmodel( )
470
471	IMPLICIT NONE
472
473	pmc_is_rootmodel = ( m_my_cpl_id == 1 )
474
475	END FUNCTION pmc_is_rootmodel
476
477
478
479	SUBROUTINE read_coupling_layout( nesting_datatransfer_mode, nesting_mode, &
480	anterpolation_buffer_width, pmc_status )
481
482	IMPLICIT NONE
483
484	CHARACTER(LEN=8), INTENT(INOUT) :: nesting_mode
485	CHARACTER(LEN=7), INTENT(INOUT) :: nesting_datatransfer_mode
486
487	INTEGER, INTENT(INOUT) :: anterpolation_buffer_width !< Boundary buffer width for anterpolation
488	INTEGER(iwp), INTENT(INOUT) :: pmc_status
489	INTEGER(iwp) :: bad_llcorner
490	INTEGER(iwp) :: i
491	INTEGER(iwp) :: istat
492
493	TYPE(pmc_layout), DIMENSION(pmc_max_models) :: domain_layouts
494
495	NAMELIST /nesting_parameters/ domain_layouts, nesting_datatransfer_mode, &
496	nesting_mode, anterpolation_buffer_width
497
498	!
499	!-- Initialize some coupling variables
500	domain_layouts(1:pmc_max_models)%id = -1
501	m_ncpl = 0
502
503	pmc_status = pmc_status_ok
504	!
505	!-- Open the NAMELIST-file and read the nesting layout
506	CALL check_open( 11 )
507	READ ( 11, nesting_parameters, IOSTAT=istat )
508	!
509	!-- Set filepointer to the beginning of the file. Otherwise process 0 will later
510	!-- be unable to read the inipar-NAMELIST
511	REWIND ( 11 )
512
513	IF ( istat < 0 ) THEN
514	!
515	!-- No nesting_parameters-NAMELIST found
516	pmc_status = pmc_no_namelist_found
517	RETURN
518	ELSEIF ( istat > 0 ) THEN
519	!
520	!-- Errors in reading nesting_parameters-NAMELIST
521	pmc_status = pmc_namelist_error
522	RETURN
523	ENDIF
524	!
525	!-- Output location message
526	CALL location_message( 'initialize communicators for nesting', .FALSE. )
527	!
528	!-- Assign the layout to the corresponding internally used variable m_couplers
529	m_couplers = domain_layouts
530	!
531	!-- Get the number of nested models given in the nesting_parameters-NAMELIST
532	DO i = 1, pmc_max_models
533	!
534	!-- When id=-1 is found for the first time, the list of domains is finished
535	IF ( m_couplers(i)%id == -1 .OR. i == pmc_max_models ) THEN
536	IF ( m_couplers(i)%id == -1 ) THEN
537	m_ncpl = i - 1
538	EXIT
539	ELSE
540	m_ncpl = pmc_max_models
541	ENDIF
542	ENDIF
543	ENDDO
544	!
545	!-- Make sure that all domains have equal lower left corner in case of vertical
546	!-- nesting
547	IF ( nesting_mode == 'vertical' ) THEN
548	bad_llcorner = 0
549	DO i = 1, m_ncpl
550	IF ( domain_layouts(i)%lower_left_x /= 0.0_wp .OR. &
551	domain_layouts(i)%lower_left_y /= 0.0_wp ) THEN
552	bad_llcorner = bad_llcorner + 1
553	domain_layouts(i)%lower_left_x = 0.0_wp
554	domain_layouts(i)%lower_left_y = 0.0_wp
555	ENDIF
556	ENDDO
557	IF ( bad_llcorner /= 0) THEN
558	WRITE ( message_string, *) 'at least one dimension of lower ', &
559	'left corner of one domain is not 0. ', &
560	'All lower left corners were set to (0, 0)'
561	CALL message( 'read_coupling_layout', 'PA0427', 0, 0, 0, 6, 0 )
562	ENDIF
563	ENDIF
564
565	END SUBROUTINE read_coupling_layout
566
567	#endif
568	END MODULE pmc_handle_communicator

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