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source: palm/trunk/SOURCE/pmc_parent_mod.f90 @ 4648

Last change on this file since 4648 was 4629, checked in by raasch, 4 years ago
support for MPI Fortran77 interface (mpif.h) removed
Property svn:keywords set to `Id`
File size: 34.5 KB

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[4246]	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	!
[4360]	18	! Copyright 1997-2020 Leibniz Universitaet Hannover
[4246]	19	!------------------------------------------------------------------------------!
	20	!
	21	! Current revisions:
	22	! ------------------
[4629]	23	!
	24	!
[4246]	25	! Former revisions:
	26	! -----------------
	27	! $Id: pmc_parent_mod.f90 4629 2020-07-29 09:37:56Z raasch $
[4629]	28	! support for MPI Fortran77 interface (mpif.h) removed
[4246]	29	!
[4629]	30	! 4360 2020-01-07 11:25:50Z suehring
[4246]	31	!
[4629]	32	!
[4245]	33	! 4213 2019-09-02 14:25:56Z suehring
[4246]	34	! Allocate array for index_list_2d also for zero-size arrays, in order to
	35	! avoid errors when array bound checks are enabled
	36	!
	37	! 4212 2019-09-02 14:23:05Z suehring
	38	! Corrected "Former revisions" section
	39	!
	40	! 3962 2019-05-08 19:40:33Z suehring
	41	! Bugfixes in initial settings of child and parent communication patterns.
	42	!
	43	! 3655 2019-01-07 16:51:22Z knoop
	44	! explicit kind settings
	45	!
	46	! 1762 2016-02-25 12:31:13Z hellstea
	47	! Initial revision by K. Ketelsen
	48	!
	49	! Description:
	50	! ------------
	51	!> Parent part of Palm Model Coupler
	52	!------------------------------------------------------------------------------!
	53
	54	#if defined( __parallel )
	55	USE, INTRINSIC :: ISO_C_BINDING
	56
	57	USE MPI
[4629]	58
[4246]	59	USE kinds
	60	USE pmc_general, &
	61	ONLY: arraydef, childdef, da_namedef, da_namelen, pedef, &
	62	pmc_g_setname, pmc_max_array, pmc_max_models, pmc_sort
	63
	64	USE pmc_handle_communicator, &
	65	ONLY: m_model_comm,m_model_rank,m_model_npes, m_to_child_comm, &
	66	m_world_rank, pmc_parent_for_child
	67
	68	USE pmc_mpi_wrapper, &
	69	ONLY: pmc_alloc_mem, pmc_bcast, pmc_time
	70
	71	IMPLICIT NONE
	72
	73
	74	PRIVATE
	75	SAVE
	76
	77	TYPE childindexdef
	78	INTEGER :: nrpoints !<
	79	INTEGER, DIMENSION(:,:), ALLOCATABLE :: index_list_2d !<
	80	END TYPE childindexdef
	81
	82	TYPE(childdef), DIMENSION(pmc_max_models),PUBLIC :: children !<
	83	TYPE(childindexdef), DIMENSION(pmc_max_models) :: indchildren !<
	84
	85	INTEGER :: next_array_in_list = 0 !<
	86
	87
	88	PUBLIC pmc_parent_for_child
	89
	90
	91	INTERFACE pmc_parentinit
	92	MODULE PROCEDURE pmc_parentinit
	93	END INTERFACE pmc_parentinit
	94
	95	INTERFACE pmc_s_set_2d_index_list
	96	MODULE PROCEDURE pmc_s_set_2d_index_list
	97	END INTERFACE pmc_s_set_2d_index_list
	98
	99	INTERFACE pmc_s_clear_next_array_list
	100	MODULE PROCEDURE pmc_s_clear_next_array_list
	101	END INTERFACE pmc_s_clear_next_array_list
	102
	103	INTERFACE pmc_s_getnextarray
	104	MODULE PROCEDURE pmc_s_getnextarray
	105	END INTERFACE pmc_s_getnextarray
	106
	107	INTERFACE pmc_s_set_dataarray
	108	MODULE PROCEDURE pmc_s_set_dataarray_2d
	109	MODULE PROCEDURE pmc_s_set_dataarray_3d
	110	MODULE PROCEDURE pmc_s_set_dataarray_ip2d
	111	END INTERFACE pmc_s_set_dataarray
	112
	113	INTERFACE pmc_s_setind_and_allocmem
	114	MODULE PROCEDURE pmc_s_setind_and_allocmem
	115	END INTERFACE pmc_s_setind_and_allocmem
	116
	117	INTERFACE pmc_s_fillbuffer
	118	MODULE PROCEDURE pmc_s_fillbuffer
	119	END INTERFACE pmc_s_fillbuffer
	120
	121	INTERFACE pmc_s_getdata_from_buffer
	122	MODULE PROCEDURE pmc_s_getdata_from_buffer
	123	END INTERFACE pmc_s_getdata_from_buffer
	124
	125	INTERFACE pmc_s_set_active_data_array
	126	MODULE PROCEDURE pmc_s_set_active_data_array
	127	END INTERFACE pmc_s_set_active_data_array
	128
	129	INTERFACE pmc_s_get_child_npes
	130	MODULE PROCEDURE pmc_s_get_child_npes
	131	END INTERFACE pmc_s_get_child_npes
	132
	133	PUBLIC pmc_parentinit, pmc_s_clear_next_array_list, pmc_s_fillbuffer, &
	134	pmc_s_getdata_from_buffer, pmc_s_getnextarray, &
	135	pmc_s_setind_and_allocmem, pmc_s_set_active_data_array, &
	136	pmc_s_set_dataarray, pmc_s_set_2d_index_list, &
	137	pmc_s_get_child_npes
	138
	139	CONTAINS
	140
	141
	142	SUBROUTINE pmc_parentinit
	143
	144	IMPLICIT NONE
	145
	146	INTEGER(iwp) :: childid !<
	147	INTEGER(iwp) :: i !<
	148	INTEGER(iwp) :: j !<
	149	INTEGER(iwp) :: istat !<
	150
	151	DO i = 1, SIZE( pmc_parent_for_child )-1
	152
	153	childid = pmc_parent_for_child( i )
	154
	155	children(childid)%model_comm = m_model_comm
	156	children(childid)%inter_comm = m_to_child_comm(childid)
	157
	158	!
	159	!-- Get rank and size
	160	CALL MPI_COMM_RANK( children(childid)%model_comm, &
	161	children(childid)%model_rank, istat )
	162	CALL MPI_COMM_SIZE( children(childid)%model_comm, &
	163	children(childid)%model_npes, istat )
	164	CALL MPI_COMM_REMOTE_SIZE( children(childid)%inter_comm, &
	165	children(childid)%inter_npes, istat )
	166	!
	167	!-- Intra communicator is used for MPI_GET
	168	CALL MPI_INTERCOMM_MERGE( children(childid)%inter_comm, .FALSE., &
	169	children(childid)%intra_comm, istat )
	170	CALL MPI_COMM_RANK( children(childid)%intra_comm, &
	171	children(childid)%intra_rank, istat )
	172
	173	ALLOCATE( children(childid)%pes(children(childid)%inter_npes))
	174	!
	175	!-- Allocate array of TYPE arraydef for all child PEs to store information
	176	!-- of the transfer array
	177	DO j = 1, children(childid)%inter_npes
	178	ALLOCATE( children(childid)%pes(j)%array_list(pmc_max_array) )
	179	ENDDO
	180
	181	CALL get_da_names_from_child (childid)
	182
	183	ENDDO
	184
	185	END SUBROUTINE pmc_parentinit
	186
	187
	188
	189	SUBROUTINE pmc_s_set_2d_index_list( childid, index_list )
	190
	191	IMPLICIT NONE
	192
	193	INTEGER(iwp), INTENT(IN) :: childid !<
	194	INTEGER(iwp), DIMENSION(:,:), INTENT(INOUT) :: index_list !<
	195
	196	INTEGER(iwp) :: ian !<
	197	INTEGER(iwp) :: ie !<
	198	INTEGER(iwp) :: ip !<
	199	INTEGER(iwp) :: is !<
	200	INTEGER(iwp) :: istat !<
	201
	202
	203	IF ( m_model_rank == 0 ) THEN
	204	!
	205	!-- Sort to ascending parent process order
	206	CALL pmc_sort( index_list, 6 )
	207	is = 1
	208	DO ip = 0, m_model_npes-1
	209	!
	210	!-- Split into parent processes
	211	ie = is - 1
	212	!
	213	!-- There may be no entry for this process
	214	IF ( is <= SIZE( index_list,2 ) .AND. ie >= 0 ) THEN
	215	DO WHILE ( index_list(6,ie+1 ) == ip )
	216	ie = ie + 1
	217	IF ( ie == SIZE( index_list,2 ) ) EXIT
	218	ENDDO
	219	ian = ie - is + 1
	220	ELSE
	221	is = -1
	222	ie = -2
	223	ian = 0
	224	ENDIF
	225	!
	226	!-- Send data to other parent processes
	227	IF ( ip == 0 ) THEN
	228	indchildren(childid)%nrpoints = ian
	229	!
	230	!-- Allocate array for index_list_2d. Note, the array will also be
	231	!-- allocated in case ian=0, in order to avoid errors when
	232	!-- array bounds are checked.
	233	ALLOCATE( indchildren(childid)%index_list_2d(6,1:ian) )
	234	IF ( ian > 0) THEN
	235	indchildren(childid)%index_list_2d(:,1:ian) = &
	236	index_list(:,is:ie)
	237	ENDIF
	238	ELSE
	239	CALL MPI_SEND( ian, 1, MPI_INTEGER, ip, 1000, m_model_comm, &
	240	istat )
	241	IF ( ian > 0) THEN
	242	CALL MPI_SEND( index_list(1,is), 6*ian, MPI_INTEGER, ip, &
	243	1001, m_model_comm, istat )
	244	ENDIF
	245	ENDIF
	246	is = ie + 1
	247	ENDDO
	248	ELSE
	249	CALL MPI_RECV( indchildren(childid)%nrpoints, 1, MPI_INTEGER, 0, 1000, &
	250	m_model_comm, MPI_STATUS_IGNORE, istat )
	251	ian = indchildren(childid)%nrpoints
	252	!
	253	!-- Allocate array for index_list_2d. Note, the array will also be
	254	!-- allocated in case ian=0, in order to avoid errors when
	255	!-- array bounds are checked.
	256	ALLOCATE( indchildren(childid)%index_list_2d(6,1:ian) )
	257	IF ( ian > 0 ) THEN
	258	CALL MPI_RECV( indchildren(childid)%index_list_2d, 6*ian, &
	259	MPI_INTEGER, 0, 1001, m_model_comm, &
	260	MPI_STATUS_IGNORE, istat)
	261	ENDIF
	262	ENDIF
	263	CALL set_pe_index_list( children(childid), &
	264	indchildren(childid)%index_list_2d, &
	265	indchildren(childid)%nrpoints )
	266
	267	END SUBROUTINE pmc_s_set_2d_index_list
	268
	269
	270
	271	SUBROUTINE pmc_s_clear_next_array_list
	272
	273	IMPLICIT NONE
	274
	275	next_array_in_list = 0
	276
	277	END SUBROUTINE pmc_s_clear_next_array_list
	278
	279
	280
	281	LOGICAL FUNCTION pmc_s_getnextarray( childid, myname )
	282
	283	!
	284	!-- Althoug there are no linked lists any more in PMC, this call still looks like working with a list
	285
	286	CHARACTER(LEN=*), INTENT(OUT) :: myname !<
	287	INTEGER(iwp), INTENT(IN) :: childid !<
	288
	289	TYPE(arraydef), POINTER :: ar
	290	TYPE(pedef), POINTER :: ape
	291
	292	next_array_in_list = next_array_in_list + 1
	293	!
	294	!-- Array names are the same on all children processes, so take first
	295	!-- process to get the name
	296	ape => children(childid)%pes(1)
	297
	298	IF ( next_array_in_list > ape%nr_arrays ) THEN
	299	!
	300	!-- All arrays are done
	301	pmc_s_getnextarray = .FALSE.
	302	RETURN
	303	ENDIF
	304
	305	ar => ape%array_list(next_array_in_list)
	306	myname = ar%name
	307	!
	308	!-- Return true if there is still an array in the list
	309
	310	pmc_s_getnextarray = .TRUE.
	311
	312	END FUNCTION pmc_s_getnextarray
	313
	314
	315
	316	SUBROUTINE pmc_s_set_dataarray_2d( childid, array, array_2 )
	317
	318	IMPLICIT NONE
	319
	320	INTEGER(iwp), INTENT(IN) :: childid !<
	321
	322	REAL(wp), INTENT(IN), DIMENSION(:,:), POINTER :: array !<
	323	REAL(wp), INTENT(IN), DIMENSION(:,:), POINTER, OPTIONAL :: array_2 !<
	324
	325	INTEGER(iwp) :: nrdims !<
	326	INTEGER(iwp), DIMENSION(4) :: dims !<
	327	TYPE(C_PTR) :: array_adr !<
	328	TYPE(C_PTR) :: second_adr !<
	329
	330
	331	dims = 1
	332	nrdims = 2
	333	dims(1) = SIZE( array,1 )
	334	dims(2) = SIZE( array,2 )
	335	array_adr = C_LOC( array )
	336
	337	IF ( PRESENT( array_2 ) ) THEN
	338	second_adr = C_LOC(array_2)
	339	CALL pmc_s_setarray( childid, nrdims, dims, array_adr, &
	340	second_adr = second_adr)
	341	ELSE
	342	CALL pmc_s_setarray( childid, nrdims, dims, array_adr )
	343	ENDIF
	344
	345	END SUBROUTINE pmc_s_set_dataarray_2d
	346
	347	SUBROUTINE pmc_s_set_dataarray_ip2d( childid, array )
	348
	349	IMPLICIT NONE
	350
	351	INTEGER(iwp),INTENT(IN) :: childid !<
	352
	353	INTEGER(idp), INTENT(IN), DIMENSION(:,:), POINTER :: array !<
	354
	355	INTEGER(iwp) :: nrdims !<
	356	INTEGER(iwp), DIMENSION(4) :: dims !<
	357	TYPE(C_PTR) :: array_adr !<
	358
	359
	360	dims = 1
	361	nrdims = 2
	362	dims(1) = SIZE( array,1 )
	363	dims(2) = SIZE( array,2 )
	364	array_adr = C_LOC( array )
	365
	366	CALL pmc_s_setarray( childid, nrdims, dims, array_adr , dimkey=22)
	367
	368	END SUBROUTINE pmc_s_set_dataarray_ip2d
	369
	370
	371	SUBROUTINE pmc_s_set_dataarray_3d( childid, array, nz_cl, nz, array_2 )
	372
	373	IMPLICIT NONE
	374
	375	INTEGER(iwp), INTENT(IN) :: childid !<
	376	INTEGER(iwp), INTENT(IN) :: nz !<
	377	INTEGER(iwp), INTENT(IN) :: nz_cl !<
	378
	379	REAL(wp), INTENT(IN), DIMENSION(:,:,:), POINTER :: array !<
	380	REAL(wp), INTENT(IN), DIMENSION(:,:,:), POINTER, OPTIONAL :: array_2 !<
	381
	382	INTEGER(iwp) :: nrdims !<
	383	INTEGER(iwp), DIMENSION(4) :: dims !<
	384	TYPE(C_PTR) :: array_adr !<
	385	TYPE(C_PTR) :: second_adr !<
	386
	387	nrdims = 3
	388	dims(1) = SIZE( array,1 )
	389	dims(2) = SIZE( array,2 )
	390	dims(3) = SIZE( array,3 )
	391	dims(4) = nz_cl+dims(1)-nz ! works for first dimension 1:nz and 0:nz+1
	392
	393	array_adr = C_LOC(array)
	394	!
	395	!-- In PALM's pointer version, two indices have to be stored internally.
	396	!-- The active address of the data array is set in swap_timelevel.
	397	IF ( PRESENT( array_2 ) ) THEN
	398	second_adr = C_LOC( array_2 )
	399	CALL pmc_s_setarray( childid, nrdims, dims, array_adr, &
	400	second_adr = second_adr)
	401	ELSE
	402	CALL pmc_s_setarray( childid, nrdims, dims, array_adr )
	403	ENDIF
	404
	405	END SUBROUTINE pmc_s_set_dataarray_3d
	406
	407
	408
	409	SUBROUTINE pmc_s_setind_and_allocmem( childid )
	410
	411	USE control_parameters, &
	412	ONLY: message_string
	413
	414	IMPLICIT NONE
	415
	416	!
	417	!-- Naming convention for appendices: _pc -> parent to child transfer
	418	!-- _cp -> child to parent transfer
	419	!-- send -> parent to child transfer
	420	!-- recv -> child to parent transfer
	421	INTEGER(iwp), INTENT(IN) :: childid !<
	422
	423	INTEGER(iwp) :: arlen !<
	424	INTEGER(iwp) :: i !<
	425	INTEGER(iwp) :: ierr !<
	426	INTEGER(iwp) :: j !<
	427	INTEGER(iwp) :: lo_nr_arrays !< store number of arrays in local variiab le
	428	INTEGER(iwp) :: myindex !<
	429	INTEGER(iwp) :: total_npes !< Total Number of PEs Parent and Child
	430
	431	INTEGER(idp) :: bufsize !< size of MPI data window
	432	INTEGER(KIND=MPI_ADDRESS_KIND) :: winsize !<
	433
	434	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: myindex_s
	435	INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: myindex_r
	436
	437	TYPE(C_PTR) :: base_ptr !<
	438	TYPE(pedef), POINTER :: ape !<
	439	TYPE(arraydef), POINTER :: ar !<
	440
	441	REAL(wp),DIMENSION(:), POINTER, SAVE :: base_array_pc !< base array for parent to child transfer
	442	REAL(wp),DIMENSION(:), POINTER, SAVE :: base_array_cp !< base array for child to parent transfer
	443
	444	call MPI_COMM_SIZE (children(childid)%intra_comm, total_npes, ierr)
	445	!
	446	!-- Parent to child direction
	447	myindex = 1
	448	bufsize = 8
	449	!
	450	!-- All Child processes get the same number of arrays
	451	!-- Therfore the number of arrays form the first Child process can be used for Dimension.
	452	lo_nr_arrays = children(childid)%pes(1)%nr_arrays
	453
	454	ALLOCATE( myindex_s(lo_nr_arrays,0:total_npes-1) )
	455	ALLOCATE( myindex_r(lo_nr_arrays,0:total_npes-1) )
	456
	457	myindex_s = 0
	458
	459	!
	460	!-- First stride: compute size and set index
	461	DO i = 1, children(childid)%inter_npes
	462
	463	ape => children(childid)%pes(i)
	464
	465	DO j = 1, ape%nr_arrays
	466
	467	ar => ape%array_list(j)
	468	IF ( ar%nrdims == 2 ) THEN
	469	arlen = ape%nrele
	470	ELSEIF ( ar%nrdims == 3 ) THEN
	471	arlen = ape%nrele * ar%a_dim(4)
	472	ELSE
	473	arlen = -1
	474	ENDIF
	475	ar%sendindex = myindex
	476	!
	477	! Using intra communicator for MPU_Alltoall, the numbers of the child processes are after the paremt ones
	478
	479	myindex_s(j,i-1+children(childid)%model_npes) = myindex
	480
	481	myindex = myindex + arlen
	482	bufsize = bufsize + arlen
	483	ar%sendsize = arlen
	484	ENDDO
	485
	486	ENDDO
	487	!
	488	!-- Using MPI_Alltoall to send indices from Parent to Child
	489	!-- The data comming back from the child processes are ignored.
	490
	491	CALL MPI_ALLTOALL( myindex_s, lo_nr_arrays, MPI_INTEGER, &
	492	myindex_r, lo_nr_arrays, MPI_INTEGER, &
	493	children(childid)%intra_comm, ierr )
	494
	495	!
	496	!-- Using MPI_Alltoall to receive indices from Child
	497	myindex_s = 0
	498	myindex_r = 0
	499
	500	CALL MPI_ALLTOALL( myindex_s, lo_nr_arrays, MPI_INTEGER, &
	501	myindex_r, lo_nr_arrays, MPI_INTEGER, &
	502	children(childid)%intra_comm, ierr )
	503	!
	504	!-- Create RMA (One Sided Communication) window for data buffer parent to
	505	!-- child transfer.
	506	!-- The buffer of MPI_GET (counterpart of transfer) can be PE-local, i.e.
	507	!-- it can but must not be part of the MPI RMA window. Only one RMA window is
	508	!-- required to prepare the data for
	509	!-- parent -> child transfer on the parent side
	510	!-- and for
	511	!-- child -> parent transfer on the child side
	512	CALL pmc_alloc_mem( base_array_pc, bufsize )
	513	children(childid)%totalbuffersize = bufsize * wp
	514
	515	winsize = bufsize * wp
	516	CALL MPI_WIN_CREATE( base_array_pc, winsize, wp, MPI_INFO_NULL, &
	517	children(childid)%intra_comm, &
	518	children(childid)%win_parent_child, ierr )
	519	!
	520	!-- Open window to set data
	521	CALL MPI_WIN_FENCE( 0, children(childid)%win_parent_child, ierr )
	522	!
	523	!-- Second stride: set buffer pointer
	524	DO i = 1, children(childid)%inter_npes
	525
	526	ape => children(childid)%pes(i)
	527
	528	DO j = 1, ape%nr_arrays
	529
	530	ar => ape%array_list(j)
	531	ar%sendbuf = C_LOC( base_array_pc(ar%sendindex) )
	532
	533	IF ( ar%sendindex + ar%sendsize > bufsize ) THEN
	534	WRITE( message_string, '(a,i4,4i7,1x,a)' ) &
	535	'parent buffer too small ',i, &
	536	ar%sendindex,ar%sendsize,ar%sendindex+ar%sendsize, &
	537	bufsize,trim(ar%name)
	538	CALL message( 'pmc_s_setind_and_allocmem', 'PA0429', 3, 2, 0, 6, 0 )
	539	ENDIF
	540	ENDDO
	541	ENDDO
	542	!
	543	!-- Child to parent direction
	544	bufsize = 8
	545	!
	546	!-- First stride: compute size and set index
	547	DO i = 1, children(childid)%inter_npes
	548	ape => children(childid)%pes(i)
	549	DO j = 1, ape%nr_arrays
	550	ar => ape%array_list(j)
	551	!
	552	!-- Receive index from child
	553	IF ( ar%nrdims == 3 ) THEN
	554	bufsize = MAX( bufsize, &
	555	INT( ape%nrele * ar%a_dim(4), MPI_ADDRESS_KIND ) )
	556	ELSE
	557	bufsize = MAX( bufsize, INT( ape%nrele, MPI_ADDRESS_KIND ) )
	558	ENDIF
	559	ar%recvindex = myindex_r(j,i-1+children(childid)%model_npes)
	560	ENDDO
	561	ENDDO
	562
	563	DEALLOCATE( myindex_s )
	564	DEALLOCATE( myindex_r )
	565
	566	!
	567	!-- Create RMA (one sided communication, RMA = Remote Memory Access) data buffer.
	568	!-- The buffer for MPI_GET can be PE local, i.e. it can but must not be part of
	569	!-- the MPI RMA window
	570	CALL pmc_alloc_mem( base_array_cp, bufsize, base_ptr )
	571	children(childid)%totalbuffersize = bufsize * wp
	572
	573	CALL MPI_BARRIER( children(childid)%intra_comm, ierr )
	574	!
	575	!-- Second stride: set buffer pointer
	576	DO i = 1, children(childid)%inter_npes
	577	ape => children(childid)%pes(i)
	578	DO j = 1, ape%nr_arrays
	579	ar => ape%array_list(j)
	580	ar%recvbuf = base_ptr
	581	ENDDO
	582	ENDDO
	583
	584	END SUBROUTINE pmc_s_setind_and_allocmem
	585
	586
	587
	588	SUBROUTINE pmc_s_fillbuffer( childid, waittime, particle_transfer )
	589
	590	IMPLICIT NONE
	591
	592	INTEGER(iwp), INTENT(IN) :: childid !<
	593
	594	REAL(wp), INTENT(OUT), OPTIONAL :: waittime !<
	595	LOGICAL, INTENT(IN), OPTIONAL :: particle_transfer !<
	596
	597
	598	INTEGER(iwp) :: ierr !<
	599	INTEGER(iwp) :: ij !<
	600	INTEGER(iwp) :: ip !<
	601	INTEGER(iwp) :: j !<
	602	INTEGER(iwp) :: myindex !<
	603
	604	LOGICAL :: lo_ptrans
	605
	606	INTEGER(iwp), DIMENSION(1) :: buf_shape
	607
	608	REAL(wp) :: t1 !<
	609	REAL(wp) :: t2 !<
	610	REAL(wp), POINTER, DIMENSION(:) :: buf !<
	611	REAL(wp), POINTER, DIMENSION(:,:) :: data_2d !<
	612	REAL(wp), POINTER, DIMENSION(:,:,:) :: data_3d !<
	613	INTEGER(idp), POINTER, DIMENSION(:) :: ibuf !<
	614	INTEGER(idp), POINTER, DIMENSION(:,:) :: idata_2d !<
	615
	616	TYPE(pedef), POINTER :: ape !<
	617	TYPE(arraydef), POINTER :: ar !<
	618
	619	!
	620	!-- Synchronization of the model is done in pmci_synchronize.
	621	!-- Therefor the RMA window can be filled without
	622	!-- sychronization at this point and a barrier is not necessary.
	623	!-- Please note that waittime has to be set in pmc_s_fillbuffer AND
	624	!-- pmc_c_getbuffer
	625	IF ( PRESENT( waittime) ) THEN
	626	t1 = pmc_time()
	627	CALL MPI_BARRIER( children(childid)%intra_comm, ierr )
	628	t2 = pmc_time()
	629	waittime = t2- t1
	630	ENDIF
	631
	632	lo_ptrans = .FALSE.
	633	IF ( PRESENT( particle_transfer)) lo_ptrans = particle_transfer
	634
	635	DO ip = 1, children(childid)%inter_npes
	636	ape => children(childid)%pes(ip)
	637	DO j = 1, ape%nr_arrays
	638	ar => ape%array_list(j)
	639	myindex = 1
	640
	641	IF ( ar%dimkey == 2 .AND. .NOT.lo_ptrans ) THEN ! PALM 2D REAL*8 Array
	642
	643	buf_shape(1) = ape%nrele
	644	CALL C_F_POINTER( ar%sendbuf, buf, buf_shape )
	645	CALL C_F_POINTER( ar%data, data_2d, ar%a_dim(1:2) )
	646	DO ij = 1, ape%nrele
	647	buf(myindex) = data_2d(ape%locind(ij)%j,ape%locind(ij)%i)
	648	myindex = myindex + 1
	649	ENDDO
	650
	651	ELSEIF ( ar%dimkey == 3 .AND. .NOT.lo_ptrans ) THEN ! PALM 3D REAL*8 Array
	652
	653	buf_shape(1) = ape%nrele*ar%a_dim(4)
	654	CALL C_F_POINTER( ar%sendbuf, buf, buf_shape )
	655	CALL C_F_POINTER( ar%data, data_3d, ar%a_dim(1:3) )
	656	DO ij = 1, ape%nrele
	657	buf(myindex:myindex+ar%a_dim(4)-1) = &
	658	data_3d(1:ar%a_dim(4),ape%locind(ij)%j,ape%locind(ij)%i)
	659	myindex = myindex + ar%a_dim(4)
	660	ENDDO
	661	ELSEIF ( ar%dimkey == 22 .AND. lo_ptrans ) THEN ! 2D INTEGER*8 Array for particle Transfer
	662
	663	buf_shape(1) = ape%nrele
	664	CALL C_F_POINTER( ar%sendbuf, ibuf, buf_shape )
	665	CALL C_F_POINTER( ar%data, idata_2d, ar%a_dim(1:2) )
	666	DO ij = 1, ape%nrele
	667	ibuf(myindex) = idata_2d(ape%locind(ij)%j,ape%locind(ij)%i)
	668	myindex = myindex + 1
	669	ENDDO
	670	ENDIF
	671	ENDDO
	672	ENDDO
	673	!
	674	!-- Buffer is filled
	675	CALL MPI_BARRIER( children(childid)%intra_comm, ierr )
	676
	677	END SUBROUTINE pmc_s_fillbuffer
	678
	679
	680
	681	SUBROUTINE pmc_s_getdata_from_buffer( childid, waittime , particle_transfer, child_process_nr )
	682
	683	IMPLICIT NONE
	684
	685	INTEGER(iwp), INTENT(IN) :: childid !<
	686	REAL(wp), INTENT(OUT), OPTIONAL :: waittime !<
	687	LOGICAL, INTENT(IN), OPTIONAL :: particle_transfer !<
	688	INTEGER(iwp), INTENT(IN), OPTIONAL :: child_process_nr !<
	689
	690	INTEGER(iwp) :: ierr !<
	691	INTEGER(iwp) :: ij !<
	692	INTEGER(iwp) :: ip !<
	693	INTEGER(iwp) :: ip_start !<
	694	INTEGER(iwp) :: ip_end !<
	695	INTEGER(iwp) :: j !<
	696	INTEGER(iwp) :: myindex !<
	697	INTEGER(iwp) :: nr !<
	698	INTEGER(iwp) :: target_pe !<
	699	INTEGER(KIND=MPI_ADDRESS_KIND) :: target_disp !<
	700
	701	LOGICAL :: lo_ptrans
	702
	703	INTEGER(iwp), DIMENSION(1) :: buf_shape !<
	704
	705	REAL(wp) :: t1 !<
	706	REAL(wp) :: t2 !<
	707	REAL(wp), POINTER, DIMENSION(:) :: buf !<
	708	REAL(wp), POINTER, DIMENSION(:,:) :: data_2d !<
	709	REAL(wp), POINTER, DIMENSION(:,:,:) :: data_3d !<
	710	INTEGER(idp), POINTER, DIMENSION(:) :: ibuf !<
	711	INTEGER(idp), POINTER, DIMENSION(:,:) :: idata_2d !<
	712
	713	TYPE(pedef), POINTER :: ape !<
	714	TYPE(arraydef), POINTER :: ar !<
	715
	716
	717	t1 = pmc_time()
	718
	719	IF(PRESENT(child_process_nr)) then
	720	ip_start = child_process_nr
	721	ip_end = child_process_nr
	722	ELSE
	723	ip_start = 1
	724	ip_end = children(childid)%inter_npes
	725	END IF
	726
	727	lo_ptrans = .FALSE.
	728	IF ( PRESENT( particle_transfer)) lo_ptrans = particle_transfer
	729
	730	IF(ip_start == 1) THEN
	731	!
	732	!-- Wait for child to fill buffer
	733	CALL MPI_BARRIER( children(childid)%intra_comm, ierr )
	734	t2 = pmc_time() - t1
	735	IF ( PRESENT( waittime ) ) waittime = t2
	736
	737	CALL MPI_BARRIER( children(childid)%intra_comm, ierr )
	738	ENDIF
	739
	740	DO ip = ip_start,ip_end
	741	ape => children(childid)%pes(ip)
	742	DO j = 1, ape%nr_arrays
	743	ar => ape%array_list(j)
	744
	745	IF ( ar%recvindex < 0 ) CYCLE
	746
	747	IF ( ar%dimkey == 2 .AND. .NOT.lo_ptrans ) THEN
	748	nr = ape%nrele
	749	ELSEIF ( ar%dimkey == 3 .AND. .NOT.lo_ptrans ) THEN
	750	nr = ape%nrele * ar%a_dim(4)
	751	ELSE IF ( ar%dimkey == 22 .AND. lo_ptrans) THEN
	752	nr = ape%nrele
	753	ELSE
	754	CYCLE !particle array are not transfered here
	755	ENDIF
	756	buf_shape(1) = nr
	757	IF(lo_ptrans) THEN
	758	CALL C_F_POINTER( ar%recvbuf, ibuf, buf_shape )
	759	ELSE
	760	CALL C_F_POINTER( ar%recvbuf, buf, buf_shape )
	761	ENDIF
	762
	763	!
	764	!-- MPI passive target RMA
	765	IF ( nr > 0 ) THEN
	766	target_disp = ar%recvindex - 1
	767	!
	768	!-- Child processes are located behind parent process
	769	target_pe = ip - 1 + m_model_npes
	770	CALL MPI_WIN_LOCK( MPI_LOCK_SHARED, target_pe, 0, &
	771	children(childid)%win_parent_child, ierr )
	772	IF(lo_ptrans) THEN
	773	CALL MPI_GET( ibuf, nr8, MPI_BYTE, target_pe, target_disp, nr8, & !There is no MPI_INTEGER8 datatype
	774	MPI_BYTE, children(childid)%win_parent_child, ierr )
	775	ELSE
	776	CALL MPI_GET( buf, nr, MPI_REAL, target_pe, target_disp, nr, &
	777	MPI_REAL, children(childid)%win_parent_child, ierr )
	778	ENDIF
	779	CALL MPI_WIN_UNLOCK( target_pe, &
	780	children(childid)%win_parent_child, ierr )
	781	ENDIF
	782	myindex = 1
	783	IF ( ar%dimkey == 2 .AND. .NOT.lo_ptrans ) THEN
	784
	785	CALL C_F_POINTER( ar%data, data_2d, ar%a_dim(1:2) )
	786	DO ij = 1, ape%nrele
	787	data_2d(ape%locind(ij)%j,ape%locind(ij)%i) = buf(myindex)
	788	myindex = myindex + 1
	789	ENDDO
	790
	791	ELSEIF ( ar%dimkey == 3 .AND. .NOT.lo_ptrans ) THEN
	792
	793	CALL C_F_POINTER( ar%data, data_3d, ar%a_dim(1:3))
	794	DO ij = 1, ape%nrele
	795	data_3d(1:ar%a_dim(4),ape%locind(ij)%j,ape%locind(ij)%i) = &
	796	buf(myindex:myindex+ar%a_dim(4)-1)
	797	myindex = myindex + ar%a_dim(4)
	798	ENDDO
	799
	800	ELSE IF ( ar%dimkey == 22 .AND. lo_ptrans) THEN
	801
	802	CALL C_F_POINTER( ar%data, idata_2d, ar%a_dim(1:2) )
	803	DO ij = 1, ape%nrele
	804	idata_2d(ape%locind(ij)%j,ape%locind(ij)%i) = ibuf(myindex)
	805	myindex = myindex + 1
	806	ENDDO
	807
	808	ENDIF
	809	ENDDO
	810	ENDDO
	811
	812	END SUBROUTINE pmc_s_getdata_from_buffer
	813
	814
	815
	816	SUBROUTINE get_da_names_from_child( childid )
	817
	818	!
	819	!-- Get data array description and name from child
	820	IMPLICIT NONE
	821
	822	INTEGER(iwp), INTENT(IN) :: childid !<
	823
	824	TYPE(da_namedef) :: myname !<
	825
	826	DO
	827	CALL pmc_bcast( myname%couple_index, 0, comm=m_to_child_comm(childid) )
	828
	829	IF ( myname%couple_index == -1 ) EXIT
	830
	831	CALL pmc_bcast( myname%parentdesc, 0, comm=m_to_child_comm(childid) )
	832	CALL pmc_bcast( myname%nameonparent, 0, comm=m_to_child_comm(childid) )
	833	CALL pmc_bcast( myname%childdesc, 0, comm=m_to_child_comm(childid) )
	834	CALL pmc_bcast( myname%nameonchild, 0, comm=m_to_child_comm(childid) )
	835
	836	CALL pmc_g_setname( children(childid), myname%couple_index, &
	837	myname%nameonparent )
	838	ENDDO
	839
	840	END SUBROUTINE get_da_names_from_child
	841
	842
	843
	844	SUBROUTINE pmc_s_setarray(childid, nrdims, dims, array_adr, second_adr, dimkey )
	845
	846	!
	847	!-- Set array for child inter process 0
	848	IMPLICIT NONE
	849
	850	INTEGER(iwp), INTENT(IN) :: childid !<
	851	INTEGER(iwp), INTENT(IN) :: nrdims !<
	852	INTEGER(iwp), INTENT(IN), DIMENSION(:) :: dims !<
	853
	854	TYPE(C_PTR), INTENT(IN) :: array_adr !<
	855	TYPE(C_PTR), INTENT(IN), OPTIONAL :: second_adr !<
	856	INTEGER(iwp), INTENT(IN), OPTIONAL :: dimkey !<
	857
	858	INTEGER(iwp) :: i !< local counter
	859
	860	TYPE(pedef), POINTER :: ape !<
	861	TYPE(arraydef), POINTER :: ar !<
	862
	863
	864	DO i = 1, children(childid)%inter_npes
	865	ape => children(childid)%pes(i)
	866	ar => ape%array_list(next_array_in_list)
	867	ar%nrdims = nrdims
	868	ar%dimkey = nrdims
	869	IF(PRESENT(dimkey)) ar%dimkey = dimkey
	870	ar%a_dim = dims
	871	ar%data = array_adr
	872	IF ( PRESENT( second_adr ) ) THEN
	873	ar%po_data(1) = array_adr
	874	ar%po_data(2) = second_adr
	875	ELSE
	876	ar%po_data(1) = C_NULL_PTR
	877	ar%po_data(2) = C_NULL_PTR
	878	ENDIF
	879	ENDDO
	880
	881	END SUBROUTINE pmc_s_setarray
	882
	883
	884
	885	SUBROUTINE pmc_s_set_active_data_array( childid, iactive )
	886
	887	IMPLICIT NONE
	888
	889	INTEGER(iwp), INTENT(IN) :: childid !<
	890	INTEGER(iwp), INTENT(IN) :: iactive !<
	891
	892	INTEGER(iwp) :: ip !<
	893	INTEGER(iwp) :: j !<
	894
	895	TYPE(pedef), POINTER :: ape !<
	896	TYPE(arraydef), POINTER :: ar !<
	897
	898	DO ip = 1, children(childid)%inter_npes
	899	ape => children(childid)%pes(ip)
	900	DO j = 1, ape%nr_arrays
	901	ar => ape%array_list(j)
	902	if(mod(ar%dimkey,10) == 2) CYCLE !Not for 2D array
	903	IF ( iactive == 1 .OR. iactive == 2 ) THEN
	904	ar%data = ar%po_data(iactive)
	905	ENDIF
	906	ENDDO
	907	ENDDO
	908
	909	END SUBROUTINE pmc_s_set_active_data_array
	910
	911	INTEGER FUNCTION pmc_s_get_child_npes (child_id)
	912	IMPLICIT NONE
	913
	914	INTEGER(iwp),INTENT(IN) :: child_id
	915
	916	pmc_s_get_child_npes = children(child_id)%inter_npes
	917
	918	RETURN
	919	END FUNCTION pmc_s_get_child_npes
	920
	921
	922	SUBROUTINE set_pe_index_list( mychild, index_list, nrp )
	923
	924	IMPLICIT NONE
	925
	926	INTEGER(iwp), INTENT(IN), DIMENSION(:,:) :: index_list !<
	927	INTEGER(iwp), INTENT(IN) :: nrp !<
	928
	929	TYPE(childdef), INTENT(INOUT) :: mychild !<
	930
	931	INTEGER(iwp) :: i !<
	932	INTEGER(iwp) :: ierr !<
	933	INTEGER(iwp) :: ind !<
	934	INTEGER(iwp) :: indwin !<
	935	INTEGER(iwp) :: indwin2 !<
	936	INTEGER(iwp) :: i2 !<
	937	INTEGER(iwp) :: j !<
	938	INTEGER(iwp) :: rempe !<
	939	INTEGER(KIND=MPI_ADDRESS_KIND) :: winsize !<
	940
	941	INTEGER(iwp), DIMENSION(mychild%inter_npes) :: remind !<
	942
	943	INTEGER(iwp), DIMENSION(:), POINTER :: remindw !<
	944	INTEGER(iwp), DIMENSION(:), POINTER :: rldef !<
	945
	946	TYPE(pedef), POINTER :: ape !<
	947
	948	!
	949	!-- First, count entries for every remote child process
	950	DO i = 1, mychild%inter_npes
	951	ape => mychild%pes(i)
	952	ape%nrele = 0
	953	ENDDO
	954	!
	955	!-- Loop over number of coarse grid cells
	956	DO j = 1, nrp
	957	rempe = index_list(5,j) + 1 ! process number on remote process
	958	ape => mychild%pes(rempe)
	959	ape%nrele = ape%nrele + 1 ! Increment number of elements for this child process
	960	ENDDO
	961
	962	DO i = 1, mychild%inter_npes
	963	ape => mychild%pes(i)
	964	ALLOCATE( ape%locind(ape%nrele) )
	965	ENDDO
	966
	967	remind = 0
	968	!
	969	!-- Second, create lists
	970	!-- Loop over number of coarse grid cells
	971	DO j = 1, nrp
	972	rempe = index_list(5,j) + 1
	973	ape => mychild%pes(rempe)
	974	remind(rempe) = remind(rempe)+1
	975	ind = remind(rempe)
	976	ape%locind(ind)%i = index_list(1,j)
	977	ape%locind(ind)%j = index_list(2,j)
	978	ENDDO
	979	!
	980	!-- Prepare number of elements for children processes
	981	CALL pmc_alloc_mem( rldef, mychild%inter_npes*2 )
	982	!
	983	!-- Number of child processes * size of INTEGER (i just arbitrary INTEGER)
	984	winsize = mychild%inter_npesSTORAGE_SIZE(i)/82
	985
	986	CALL MPI_WIN_CREATE( rldef, winsize, iwp, MPI_INFO_NULL, &
	987	mychild%intra_comm, indwin, ierr )
	988	!
	989	!-- Open window to set data
	990	CALL MPI_WIN_FENCE( 0, indwin, ierr )
	991
	992	rldef(1) = 0 ! index on remote process 0
	993	rldef(2) = remind(1) ! number of elements on remote process 0
	994	!
	995	!-- Reserve buffer for index array
	996	DO i = 2, mychild%inter_npes
	997	i2 = (i-1) * 2 + 1
	998	rldef(i2) = rldef(i2-2) + rldef(i2-1) * 2 ! index on remote process
	999	rldef(i2+1) = remind(i) ! number of elements on remote process
	1000	ENDDO
	1001	!
	1002	!-- Close window to allow child to access data
	1003	CALL MPI_WIN_FENCE( 0, indwin, ierr )
	1004	!
	1005	!-- Child has retrieved data
	1006	CALL MPI_WIN_FENCE( 0, indwin, ierr )
	1007
	1008	i2 = 2 * mychild%inter_npes - 1
	1009	winsize = ( rldef(i2) + rldef(i2+1) ) * 2
	1010	!
	1011	!-- Make sure, MPI_ALLOC_MEM works
	1012	winsize = MAX( winsize, INT( 1, MPI_ADDRESS_KIND ) )
	1013
	1014	CALL pmc_alloc_mem( remindw, INT( winsize ) )
	1015
	1016	CALL MPI_BARRIER( m_model_comm, ierr )
	1017	CALL MPI_WIN_CREATE( remindw, winsize*STORAGE_SIZE(i)/8, iwp, MPI_INFO_NULL, &
	1018	mychild%intra_comm, indwin2, ierr )
	1019	!
	1020	!-- Open window to set data
	1021	CALL MPI_WIN_FENCE( 0, indwin2, ierr )
	1022	!
	1023	!-- Create the 2D index list
	1024	DO j = 1, nrp
	1025	rempe = index_list(5,j) + 1 ! process number on remote process
	1026	ape => mychild%pes(rempe)
	1027	i2 = rempe * 2 - 1
	1028	ind = rldef(i2) + 1
	1029	remindw(ind) = index_list(3,j)
	1030	remindw(ind+1) = index_list(4,j)
	1031	rldef(i2) = rldef(i2)+2
	1032	ENDDO
	1033	!
	1034	!-- All data are set
	1035	CALL MPI_WIN_FENCE( 0, indwin2, ierr )
	1036	!
	1037	!-- Don't know why, but this barrier is necessary before windows can be freed
	1038	!-- TODO: find out why this is required
	1039	CALL MPI_BARRIER( mychild%intra_comm, ierr )
	1040
	1041	CALL MPI_WIN_FREE( indwin, ierr )
	1042	CALL MPI_WIN_FREE( indwin2, ierr )
	1043
	1044	!
	1045	!-- TODO: check if the following idea needs to be done
	1046	!-- Sollte funktionieren, Problem mit MPI implementation
	1047	!-- https://www.lrz.de/services/software/parallel/mpi/onesided
	1048	!-- CALL MPI_Free_mem (remindw, ierr)
	1049
	1050	END SUBROUTINE set_pe_index_list
	1051
	1052	#endif
	1053	END MODULE pmc_parent

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