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

Last change on this file since 3163 was 3123, checked in by suehring, 6 years ago
Correct working precision for REAL and INTEGER numbers
Property svn:keywords set to `Id`
File size: 44.1 KB

Rev	Line
[2801]	1	MODULE pmc_particle_interface
	2
	3	!------------------------------------------------------------------------------!
	4	! This file is part of PALM.
	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	!
[3049]	24	!
[2801]	25	! Former revisions:
[2809]	26	! -----------------!
	27	! $Id: pmc_particle_interface.f90 3123 2018-07-12 16:21:53Z witha $
[3123]	28	! Correct working precision for REAL numbers
	29	!
	30	! 3049 2018-05-29 13:52:36Z Giersch
[3049]	31	! Error messages revised
	32	!
	33	! 2967 2018-04-13 11:22:08Z Giersch
[2967]	34	! bugfix: missing parallel cpp-directives added
	35	!
	36	! 2884 2018-03-14 08:33:20Z scharf
[2884]	37	! B: corrected KIND of variable "parsize" for some MPI calls
	38	!
	39	! 2841 2018-02-27 15:02:57Z knoop
[2841]	40	! Bugfix: wrong placement of include 'mpif.h' corrected
	41	!
	42	! 2809 2018-02-15 09:55:58Z schwenkel
[2809]	43	! Bugfix for gfortran: Replace the function C_SIZEOF with STORAGE_SIZE.
	44	!
[2801]	45	!
	46	! Initial Version (by Klaus Ketelsen)
	47	!
	48	!
	49	! Description:
	50	! ------------
	51	! Introduce particle transfer in nested models.
	52	! Interface to palm lpm model to handel particle transfer between parent and
	53	! child model.
	54	!------------------------------------------------------------------------------!
	55
	56	USE, INTRINSIC :: ISO_C_BINDING
[2841]	57
[2967]	58	#if defined( __parallel ) && !defined( __mpifh )
[2801]	59	USE MPI
[2841]	60	#endif
[2801]	61
	62	USE kinds
	63
	64	USE pegrid, &
	65	ONLY: myidx,myidy
	66
	67	USE indices, &
	68	ONLY: nx, ny, nxl, nxr, nys, nyn, nzb, nzt, nxlg, nxrg, nysg, nyng, nbgp
	69
	70	USE grid_variables, &
	71	ONLY: dx, dy
	72
	73	USE arrays_3d, &
	74	ONLY: zw
	75
	76	USE control_parameters, &
	77	ONLY: message_string
	78
	79	USE particle_attributes, &
	80	ONLY: prt_count, particles, grid_particles, &
	81	particle_type, number_of_particles, zero_particle, &
	82	ibc_par_t, ibc_par_lr, ibc_par_ns, alloc_factor
	83
	84	USE lpm_pack_and_sort_mod
	85
[2967]	86	USE lpm_exchange_horiz_mod, &
	87	ONLY: realloc_particles_array
	88
	89	#if defined( __parallel )
[2801]	90	USE pmc_general, &
	91	ONLY: pedef
	92
	93	USE pmc_parent, &
	94	ONLY: children, pmc_s_fillbuffer, pmc_s_getdata_from_buffer, &
	95	pmc_s_get_child_npes
	96
	97	USE pmc_child, &
	98	ONLY: me, pmc_c_getbuffer, pmc_c_putbuffer
	99
	100	USE pmc_interface, &
	101	ONLY: cpl_id, get_number_of_childs, nr_part, part_adr, nested_run, &
	102	get_childid, get_child_edges, nr_partc, part_adrc, &
	103	coarse_bound, coord_x, coord_y, cg, get_child_gridspacing, &
	104	lower_left_coord_x, lower_left_coord_y
	105
	106	USE pmc_handle_communicator, &
	107	ONLY: pmc_parent_for_child
	108
	109	USE pmc_mpi_wrapper, &
	110	ONLY: pmc_send_to_parent, pmc_recv_from_child
	111
[2967]	112	#endif
[2801]	113
	114	IMPLICIT NONE
[2841]	115
[2967]	116	#if defined( __parallel ) && defined( __mpifh )
[2841]	117	INCLUDE "mpif.h"
	118	#endif
	119
[2801]	120	PRIVATE
	121	SAVE
	122
	123	TYPE coarse_particle_def
	124	INTEGER(iwp) :: nr_particle
	125
	126	TYPE(particle_type),ALLOCATABLE,DIMENSION(:) :: parent_particles
	127	END TYPE coarse_particle_def
	128
	129	INTEGER(iwp),PARAMETER :: Min_particles_per_column = 100 !<
	130	INTEGER(iwp),PARAMETER :: max_nr_particle_in_rma_win = 100000 !<
	131
	132	INTEGER(iwp) :: nr_fine_in_coarse !< Number of fine grid cells in coarse grid (one direction)
	133	INTEGER(iwp) :: particle_win_child !<
	134
	135	INTEGER(iwp),ALLOCATABLE,DIMENSION(:) :: particle_win_parent !<
	136
	137	TYPE(C_PTR), ALLOCATABLE,DIMENSION(:) :: buf_ptr !<
	138
	139	TYPE(particle_type), DIMENSION(:),POINTER :: particle_in_win !<
	140
	141	TYPE(coarse_particle_def),ALLOCATABLE,DIMENSION(:,:) :: coarse_particles !<
	142
	143
	144
	145	INTERFACE pmcp_g_init
	146	MODULE PROCEDURE pmcp_g_init
	147	END INTERFACE pmcp_g_init
	148
	149	INTERFACE pmcp_g_alloc_win
	150	MODULE PROCEDURE pmcp_g_alloc_win
	151	END INTERFACE pmcp_g_alloc_win
	152
	153	INTERFACE pmcp_c_get_particle_from_parent
	154	MODULE PROCEDURE pmcp_c_get_particle_from_parent
	155	END INTERFACE pmcp_c_get_particle_from_parent
	156
	157	INTERFACE pmcp_c_send_particle_to_parent
	158	MODULE PROCEDURE pmcp_c_send_particle_to_parent
	159	END INTERFACE pmcp_c_send_particle_to_parent
	160
	161	INTERFACE pmcp_p_fill_particle_win
	162	MODULE PROCEDURE pmcp_p_fill_particle_win
	163	END INTERFACE pmcp_p_fill_particle_win
	164
	165	INTERFACE pmcp_p_empty_particle_win
	166	MODULE PROCEDURE pmcp_p_empty_particle_win
	167	END INTERFACE pmcp_p_empty_particle_win
	168
	169	INTERFACE pmcp_g_print_number_of_particles
	170	MODULE PROCEDURE pmcp_g_print_number_of_particles
	171	END INTERFACE pmcp_g_print_number_of_particles
	172
	173	INTERFACE pmcp_p_delete_particles_in_fine_grid_area
	174	MODULE PROCEDURE pmcp_p_delete_particles_in_fine_grid_area
	175	END INTERFACE pmcp_p_delete_particles_in_fine_grid_area
	176
	177	PUBLIC pmcp_g_init, pmcp_g_alloc_win, pmcp_c_get_particle_from_parent
	178	PUBLIC pmcp_c_send_particle_to_parent, pmcp_p_fill_particle_win, pmcp_g_print_number_of_particles
	179	PUBLIC pmcp_p_empty_particle_win, pmcp_p_delete_particles_in_fine_grid_area
	180
	181	CONTAINS
	182
	183	!------------------------------------------------------------------------------!
	184	! Description:
	185	! ------------
	186	!> general routine:
	187	!> Initializing actions of the particle interface
	188	!> check particle boundary conditions for the child models
	189	!------------------------------------------------------------------------------!
	190	SUBROUTINE pmcp_g_init
	191
	192	IMPLICIT NONE
	193
	194	INTEGER(iwp) :: nr_childs !< Number of child models of the current model
	195
[2967]	196	#if defined( __parallel )
	197
[2801]	198	nr_childs = get_number_of_childs()
	199	!
	200	!-- Check if the current model has child models
	201	IF ( nr_childs > 0 ) THEN
	202	ALLOCATE( nr_part(nysg:nyng, nxlg:nxrg) )
	203	ALLOCATE( part_adr(nysg:nyng, nxlg:nxrg) )
	204	nr_part = 0
	205	part_adr = 0
	206	ENDIF
	207
	208	!
	209	!-- Set the boundary conditions to nested for all non root (i.e child) models
	210	IF ( cpl_id > 1 ) THEN
	211
	212	IF ( ibc_par_t /= 3 ) THEN
	213	ibc_par_t = 3
[3046]	214	message_string = 'In Child model: ibc_par_t is automatically set to nested '
	215	CALL message( 'pmcp_g_init ', 'PA0477', 0, 1, 0, 6, 0 )
[2801]	216	ENDIF
	217
	218	IF ( ibc_par_lr /= 3 ) THEN
	219	ibc_par_lr = 3
[3046]	220	message_string = 'In Child model: ibc_par_lr is automatically set to nested '
	221	CALL message( 'pmcp_g_init ', 'PA0478', 0, 1, 0, 6, 0 )
[2801]	222	ENDIF
	223
	224	IF ( ibc_par_ns /= 3 ) THEN
	225	ibc_par_ns = 3
[3046]	226	message_string = 'In Child model: ibc_par_ns is automatically set to nested '
	227	CALL message( 'pmcp_g_init ', 'PA0479', 0, 1, 0, 6, 0 )
[2801]	228	ENDIF
	229
	230	ENDIF
	231
[2967]	232	#endif
[2801]	233	END SUBROUTINE pmcp_g_init
	234	!------------------------------------------------------------------------------!
	235	! Description:
	236	! ------------
	237	!> general routine:
	238	!> allocate the MPI windows
	239	!------------------------------------------------------------------------------!
	240	SUBROUTINE pmcp_g_alloc_win
	241
	242	IMPLICIT NONE
	243
	244	INTEGER(iwp) :: m !< loop index
	245	INTEGER(iwp) :: ierr !< error code
	246	INTEGER(iwp) :: icl !< left boundary in coarse(parent) index space
	247	INTEGER(iwp) :: icr !< right boundary in coarse(parent) index space
	248	INTEGER(iwp) :: jcs !< south boundary in coarse(parent) index space
	249	INTEGER(iwp) :: jcn !< north boundary in coarse(parent) index space
	250	INTEGER(iwp) :: child_id !< Id of a child model
	251	INTEGER(iwp) :: nr_childs !< Number of child models of the current model
	252
[2884]	253	INTEGER :: parsize !<
[2801]	254	TYPE(C_PTR), SAVE :: ptr !<
	255
	256	TYPE(particle_type),DIMENSION(:),POINTER :: win_buffer !<
	257
	258	INTEGER(iwp),DIMENSION(1) :: buf_shape !<
	259
[2967]	260	#if defined( __parallel )
	261	INTEGER(KIND=MPI_ADDRESS_KIND) :: parsize_mpi_address_kind !<
	262	INTEGER(KIND=MPI_ADDRESS_KIND) :: winsize !<
	263
[2801]	264	!
	265	!-- If the model has a parent model prepare the structures for transfer
	266	IF ( cpl_id > 1 ) THEN
[2809]	267
[2884]	268	parsize_mpi_address_kind = STORAGE_SIZE(zero_particle)/8
[2809]	269
[2884]	270	CALL MPI_ALLOC_MEM( parsize_mpi_address_kind , MPI_INFO_NULL, ptr, ierr )
	271	parsize = parsize_mpi_address_kind
[2801]	272	buf_shape(1) = 1
	273	CALL C_F_POINTER( ptr, win_buffer, buf_shape )
[2884]	274	CALL MPI_WIN_CREATE( win_buffer, parsize_mpi_address_kind, parsize, &
[2801]	275	MPI_INFO_NULL, me%intra_comm, particle_win_child, &
	276	ierr )
	277
	278	!
	279	!-- Child domain boundaries in the parent index space
	280	icl = coarse_bound(1)
	281	icr = coarse_bound(2)
	282	jcs = coarse_bound(3)
	283	jcn = coarse_bound(4)
	284
[2884]	285	ALLOCATE( coarse_particles(jcs:jcn, icl:icr) )
[2801]	286
	287	coarse_particles(:,:)%nr_particle = 0
	288	ENDIF
	289
	290	!
	291	!-- If the model has child models prepare the structures for transfer
	292	nr_childs = get_number_of_childs()
	293	IF ( nr_childs > 0 ) THEN
	294	ALLOCATE( particle_win_parent(nr_childs) )
	295	ALLOCATE( buf_ptr(nr_childs) )
	296	DO m = 1, nr_childs
	297	child_id = get_childid(m)
[2884]	298	parsize_mpi_address_kind = STORAGE_SIZE(zero_particle)/8
	299	parsize = parsize_mpi_address_kind
[2809]	300
[2884]	301	winsize = max_nr_particle_in_rma_win * parsize_mpi_address_kind
[2801]	302	CALL MPI_ALLOC_MEM( winsize , MPI_INFO_NULL, buf_ptr(m), ierr )
	303	buf_shape(1) = max_nr_particle_in_rma_win
	304	CALL C_F_POINTER( buf_ptr(m), win_buffer, buf_shape )
[2884]	305	CALL MPI_WIN_CREATE( win_buffer, winsize, parsize, MPI_INFO_NULL, &
	306	children(child_id)%intra_comm, &
[2801]	307	particle_win_parent(m), ierr )
	308	ENDDO
	309	ENDIF
	310
[2967]	311	#endif
[2801]	312	END SUBROUTINE pmcp_g_alloc_win
[2967]	313
	314
[2801]	315	!------------------------------------------------------------------------------!
	316	! Description:
	317	! ------------
	318	!> child routine:
	319	!> Read/get particles out of the parent MPI window
	320	!------------------------------------------------------------------------------!
	321	SUBROUTINE pmcp_c_get_particle_from_parent
	322
	323	IMPLICIT NONE
	324
	325	INTEGER(iwp) :: i !< x grid index
	326	INTEGER(iwp) :: icl !< left boundary in coarse(parent) index space
	327	INTEGER(iwp) :: ierr !< error code
	328	INTEGER(iwp) :: ij !< combined xy index for the buffer array
	329	INTEGER(iwp) :: ip !< loop index (child PEs)
	330	INTEGER(iwp) :: j !< y grid index
	331	INTEGER(iwp) :: jcs !< south boundary in coarse(parent) index space
	332	INTEGER(iwp) :: nr !< number of particles to receive from a parent box
	333
[2884]	334	INTEGER :: parsize !<
[2967]	335
	336	#if defined( __parallel )
	337	TYPE(pedef), POINTER :: ape !< TO_DO Klaus: give a description and better name of the variable
	338
[2884]	339	INTEGER(KIND=MPI_ADDRESS_KIND) :: parsize_mpi_address_kind !<
[2801]	340	INTEGER(KIND=MPI_ADDRESS_KIND) :: target_disp !<
	341
	342	IF ( cpl_id > 1 ) THEN
	343
	344	CALL pmc_c_getbuffer( particle_transfer = .TRUE. ) !Get number of particle/column and offset in RMA window xx
	345
	346	!
	347	!-- Wait for buffer to fill.
	348	!
	349	!-- The parent side (in pmc_s_fillbuffer) is filling the buffer in the MPI RMA window
	350	!-- When the filling is complete, a MPI_BARRIER is called.
	351	!-- The child is not allowd to access the parent-buffer before it is completely filled
	352	!-- Synchronization is done implicitely in pmc_c_getbuffer and pmc_s_fillbuffer on the parent side
	353
	354	icl = coarse_bound(1)
	355	jcs = coarse_bound(3)
	356
	357	DO ip = 1, me%inter_npes
	358
	359	ape => me%pes(ip)
	360
	361	DO ij = 1, ape%nrele
	362	j = ape%locind(ij)%j + jcs - 1
	363	i = ape%locind(ij)%i + icl - 1
	364	nr = nr_partc(j,i)
	365	IF ( nr > 0 ) THEN
	366
	367	CALL check_and_alloc_coarse_particle (i, j, nr)
[2884]	368	parsize_mpi_address_kind = STORAGE_SIZE(zero_particle)/8
	369	parsize = parsize_mpi_address_kind
[2801]	370	target_disp = part_adrc(j,i) - 1
[2884]	371	CALL MPI_WIN_LOCK( MPI_LOCK_SHARED , ip - 1, 0, &
	372	particle_win_child, ierr )
[2801]	373	CALL MPI_GET( coarse_particles(j,i)%parent_particles, &
[2884]	374	nr * parsize, MPI_BYTE, ip - 1, target_disp, &
	375	nr * parsize, MPI_BYTE, particle_win_child, ierr )
[2801]	376	CALL MPI_WIN_UNLOCK( ip - 1, particle_win_child, ierr )
	377	ENDIF
	378	coarse_particles(j,i)%nr_particle = nr
	379	ENDDO
	380	ENDDO
	381
	382	CALL c_copy_particle_to_child_grid
	383	ENDIF
	384
[2967]	385	#endif
[2801]	386	END SUBROUTINE pmcp_c_get_particle_from_parent
[2967]	387
	388
[2801]	389	!------------------------------------------------------------------------------!
	390	! Description:
	391	! ------------
	392	!> child routine:
	393	!> Write/put particles into the parent MPI window
	394	!------------------------------------------------------------------------------!
	395	SUBROUTINE pmcp_c_send_particle_to_parent
	396
	397	IMPLICIT NONE
	398
	399	INTEGER(iwp) :: disp_offset !<
	400	INTEGER(iwp) :: i !< x loop index
	401	INTEGER(iwp) :: icl !< left boundary in coarse(parent) index space
	402	INTEGER(iwp) :: icr !< right boundary in coarse(parent) index space
	403	INTEGER(iwp) :: ierr !< error code
	404	INTEGER(iwp) :: ij !< combined xy index for the buffer array
	405	INTEGER(iwp) :: ip !< loop index (child PEs)
	406	INTEGER(iwp) :: j !< y loop index
	407	INTEGER(iwp) :: jcs !< south boundary in coarse(parent) index space
	408	INTEGER(iwp) :: jcn !< north boundary in coarse(parent) index space
	409	INTEGER(iwp) :: max_nr_particle_per_pe !< maximum number of particles per PE (depending on grid apect ratio)
	410	INTEGER(iwp) :: n !< shorter variable name for nr_fine_in_coarse
	411	INTEGER(iwp) :: nr !< shorter variabel name for nr_partc
	412	INTEGER(iwp) :: pe_offset !< offset index of the current PE
	413
[2884]	414	INTEGER :: parsize !<
[2801]	415
	416	REAL(wp) :: eps=0.00001 !< used in calculations to avoid rounding errors
	417	REAL(wp) :: xx !< number of fine grid cells inside a coarse grid cell in x-direction
	418	REAL(wp) :: yy !< number of fine grid cells inside a coarse grid cell in y-direction
	419
[2967]	420	! TYPE(particle_type) :: dummy_part !< dummy particle (needed for size calculations)
	421
	422	#if defined( __parallel )
[2801]	423	TYPE(pedef), POINTER :: ape !< TO_DO Klaus: give a description and better name of the variable
[2967]	424
	425	INTEGER(KIND=MPI_ADDRESS_KIND) :: parsize_mpi_address_kind !<
	426	INTEGER(KIND=MPI_ADDRESS_KIND) :: target_disp !<
[2801]	427
	428
	429	IF ( cpl_id > 1 ) THEN
	430	CALL c_copy_particle_to_coarse_grid
	431
	432	!
	433	!-- Child domain boundaries in the parent index space
	434
	435	icl = coarse_bound(1)
	436	icr = coarse_bound(2)
	437	jcs = coarse_bound(3)
	438	jcn = coarse_bound(4)
	439
	440	nr_partc = 0
	441
	442	DO i = icl, icr
	443	DO j = jcs, jcn
	444	nr_partc(j,i) = coarse_particles(j,i)%nr_particle
	445	ENDDO
	446	ENDDO
	447	part_adrc = 0
	448
	449	!
	450	!-- compute number of fine grid cells in coarse grid (one direction)
	451	xx = (cg%dx + eps) / dx ! +eps to avoid rounding error
	452	yy = (cg%dy + eps) / dy
	453	nr_fine_in_coarse = MAX( INT(xx), INT(yy) )
	454
	455	IF ( MOD( coord_x(0), cg%dx ) /= 0.0 .OR. MOD( coord_y(0), cg%dy ) /= 0.0 ) THEN
	456	nr_fine_in_coarse = nr_fine_in_coarse + 1
	457	ENDIF
	458
	459	!
	460	!-- Assign a number to my child PE to select different areas in the RMA window on server side
	461	!-- With this number a square of child PEs is defined which share the same coarse grid cells
	462
	463	n = nr_fine_in_coarse ! local variable n to make folloing statements shorter
	464	pe_offset = MOD( myidx, n ) * n + MOD( myidy, n)
	465	max_nr_particle_per_pe = max_nr_particle_in_rma_win / ( n * n )
	466	disp_offset = pe_offset * max_nr_particle_per_pe
[2884]	467	parsize_mpi_address_kind = STORAGE_SIZE(zero_particle)/8
	468	parsize = parsize_mpi_address_kind
[2801]	469	DO ip = 1, me%inter_npes
	470
	471	ape => me%pes(ip)
	472
	473	target_disp = disp_offset
	474	DO ij = 1, ape%nrele
	475	j = ape%locind(ij)%j + jcs - 1
	476	i = ape%locind(ij)%i + icl - 1
	477	nr = nr_partc(j,i)
	478	IF( nr > 0 ) THEN
	479	IF ( target_disp + nr - disp_offset >= max_nr_particle_per_pe ) THEN
	480	WRITE(9,*) 'RMA window too small on child ', &
	481	target_disp + nr - disp_offset, &
	482	max_nr_particle_per_pe, max_nr_particle_in_rma_win
	483	message_string = 'RMA window too small on child'
[3046]	484	CALL message( 'pmci_create_child_arrays', 'PA0480', 3, 2, 0, 6, 0 )
[2801]	485	ENDIF
[2884]	486	CALL MPI_WIN_LOCK( MPI_LOCK_SHARED , ip - 1, 0, &
	487	particle_win_child, ierr )
[2801]	488	CALL MPI_PUT( coarse_particles(j,i)%parent_particles, &
[2884]	489	nr * parsize, MPI_BYTE, ip - 1, target_disp, &
	490	nr * parsize, MPI_BYTE, particle_win_child, ierr )
[2801]	491	CALL MPI_WIN_UNLOCK( ip - 1, particle_win_child, ierr )
	492	part_adrc(j,i) = target_disp + 1
	493	target_disp = target_disp + nr
	494	ENDIF
	495	ENDDO
	496	ENDDO
	497
	498	CALL pmc_c_putbuffer ( particle_transfer = .TRUE. ) !Send new number of particle/column and offset to parent
	499
	500	ENDIF
	501
[2967]	502	#endif
[2801]	503	END SUBROUTINE pmcp_c_send_particle_to_parent
[2967]	504
	505
[2801]	506	!------------------------------------------------------------------------------!
	507	! Description:
	508	! ------------
	509	!> parent routine:
	510	!> write particles into the MPI window
	511	!------------------------------------------------------------------------------!
	512	SUBROUTINE pmcp_p_fill_particle_win
	513
	514	IMPLICIT NONE
	515
	516	LOGICAL :: active_particle !< Particles located in the fine/child grid area are marked as active (to be transferred)
	517	LOGICAL,SAVE :: lfirst = .TRUE. !<
	518
	519	INTEGER(iwp) :: child_id !< id of the child model
	520	INTEGER(iwp) :: i !< x grid box index
	521	INTEGER(iwp) :: ierr !< error code
	522	INTEGER(iwp) :: ij !< combined xy index for the buffer array
	523	INTEGER(iwp) :: ip !< loop index (child PEs)
	524	INTEGER(iwp) :: j !< y grid box index
	525	INTEGER(iwp) :: k !< z grid box index
	526	INTEGER(iwp) :: m !< loop index (number of childs)
	527	INTEGER(iwp) :: n !< loop index (number of particles)
	528	INTEGER(iwp) :: nr_part_col !< Number of particles to transfer per column
	529	INTEGER(iwp) :: number_of_particles !<
	530	INTEGER(iwp) :: pindex !<
	531	INTEGER(iwp) :: tot_particle_count !< Total number of particles per child
	532
	533	REAL(wp) :: dx_child !< child grid spacing
	534	REAL(wp) :: dy_child !< child grid spacing
	535	REAL(wp) :: dz_child !< child grid spacing
	536	REAL(wp) :: ny_coord !< north coordinate of child grid
	537	REAL(wp) :: ny_coord_b !< north coordinate of child grid boundary
	538	REAL(wp) :: lx_coord !< left coordinate of child grid
	539	REAL(wp) :: lx_coord_b !< left coordinate of child grid boundary
	540	REAL(wp) :: rx_coord !< right coordinate of child grid
	541	REAL(wp) :: rx_coord_b !< right coordinate of child grid boundary
	542	REAL(wp) :: sy_coord !< south coordinate of child grid
	543	REAL(wp) :: sy_coord_b !< south coordinate of child grid boundary
	544	REAL(wp) :: uz_coord !< upper coordinate of child grid
	545	REAL(wp) :: uz_coord_b !< upper coordinate of child grid boundary
	546	REAL(wp) :: x !< particle position
	547	REAL(wp) :: xo !< origin of particle
	548	REAL(wp) :: y !< particle position
	549	REAL(wp) :: yo !< origin of particle
	550	REAL(wp) :: z !< particle position
	551
	552	INTEGER(iwp),DIMENSION(1) :: buf_shape !<
	553
[2967]	554	#if defined( __parallel )
[2801]	555	TYPE(pedef), POINTER :: ape !< TO_DO Klaus: give a description and better name of the variable
	556
	557	DO m = 1, get_number_of_childs()
	558
	559	child_id = get_childid(m)
	560
	561	CALL get_child_edges( m, lx_coord, lx_coord_b, rx_coord, rx_coord_b, &
	562	sy_coord, sy_coord_b, ny_coord, ny_coord_b, &
	563	uz_coord, uz_coord_b)
	564
	565	CALL get_child_gridspacing( m, dx_child, dy_child, dz_child )
	566
	567	IF ( lfirst ) THEN
	568	WRITE(9,'(a,5f10.2)') 'edges ',lx_coord,rx_coord,sy_coord,ny_coord,uz_coord
	569	WRITE(9,'(a,5f10.2)') 'edges boundary ',lx_coord_b,rx_coord_b,sy_coord_b,ny_coord_b,uz_coord_b
	570	WRITE(9,'(a,5f10.2)') 'child spacing ',dx_child, dy_child, dz_child,lower_left_coord_x,lower_left_coord_y
	571	ENDIF
	572	!
	573	!-- reset values for every child
	574	tot_particle_count = 0
	575	nr_part = 0
	576	part_adr = 0
	577	pindex = 1
	578
	579	buf_shape(1) = max_nr_particle_in_rma_win
	580	CALL C_F_POINTER( buf_ptr(m), particle_in_win , buf_shape )
	581
	582	DO ip = 1, children(child_id)%inter_npes
	583
	584	ape => children(child_id)%pes(ip)
	585
	586	nr_part_col = 0
	587
	588	DO ij = 1, ape%nrele
	589
	590	!
	591	!-- Inside the PMC adressing of 3d arrays starts with 1
	592	i = ape%locind(ij)%i + nxl - nbgp - 1
	593	j = ape%locind(ij)%j + nys - nbgp - 1
	594	nr_part_col = 0 ! Number of particles to transfer per column
	595	part_adr(j,i) = pindex
	596
	597	DO k = nzb + 1, nzt
	598	number_of_particles = prt_count(k,j,i)
	599
	600	IF ( number_of_particles <= 0 ) CYCLE
	601
	602	particles => grid_particles(k,j,i)%particles(1:number_of_particles)
	603
	604	! Select particles within boundary area
	605
	606	DO n = 1, number_of_particles
	607	x = particles(n)%x
	608	y = particles(n)%y
	609	z = particles(n)%z
	610	!
	611	!-- check if the particle is located in the fine grid area
	612	active_particle = ((x > lx_coord .AND. x < rx_coord) .AND. &
	613	(y > sy_coord .AND. y < ny_coord) .AND. &
	614	(z > 0.000000001 .AND. z < uz_coord))
	615	IF ( active_particle .AND. particles(n)%particle_mask ) THEN
	616
	617	particle_in_win(pindex) = particles(n)
	618	!
	619	!-- Change particle positions and origin relative to global origin
	620	particle_in_win(pindex)%x = particle_in_win(pindex)%x + lower_left_coord_x
	621	particle_in_win(pindex)%y = particle_in_win(pindex)%y + lower_left_coord_y
	622	particle_in_win(pindex)%origin_x = particle_in_win(pindex)%origin_x + lower_left_coord_x
	623	particle_in_win(pindex)%origin_y = particle_in_win(pindex)%origin_y + lower_left_coord_y
	624
	625	tot_particle_count = tot_particle_count + 1
	626	nr_part_col = nr_part_col + 1
	627	pindex = pindex + 1
	628	IF ( pindex > max_nr_particle_in_rma_win ) THEN
	629	WRITE(9,*) 'RMA window too small on parent ',pindex, max_nr_particle_in_rma_win
	630	message_string = 'RMA window too small on parent'
	631	CALL message( 'pmci_create_child_arrays', 'PA0481', 3, 2, 0, 6, 0 ) ! PA number has to be adjusted
	632	ENDIF
	633	END IF
	634	ENDDO
	635	ENDDO
	636	nr_part(j,i) = nr_part_col
	637	ENDDO
	638	ENDDO
	639
	640	CALL pmc_s_fillbuffer( child_id, particle_transfer = .TRUE. )
	641	ENDDO
	642
	643	lfirst = .FALSE.
	644
[2967]	645	#endif
[2801]	646	END SUBROUTINE pmcp_p_fill_particle_win
[2967]	647
[2801]	648
	649	!------------------------------------------------------------------------------!
	650	! Description:
	651	! ------------
	652	!> parent routine:
	653	!> delete particles from the MPI window
	654	!------------------------------------------------------------------------------!
	655	SUBROUTINE pmcp_p_empty_particle_win
[2967]	656
[2801]	657	IMPLICIT NONE
	658
	659	INTEGER(iwp) :: child_id !< model id of the child
	660	INTEGER(iwp) :: ip !< loop index (child PEs)
	661	INTEGER(iwp) :: m !< loop index (number of childs)
	662
	663	INTEGER(iwp),DIMENSION(1) :: buf_shape !<
	664
[2967]	665	#if defined( __parallel )
[2801]	666	DO m = 1, get_number_of_childs()
	667
	668	child_id = get_childid(m)
	669
	670	buf_shape(1) = max_nr_particle_in_rma_win
	671	CALL C_F_POINTER( buf_ptr(m), particle_in_win , buf_shape )
	672
	673	!
	674	!-- In some cells of the coarse grid, there are contributions from more than one child process
	675	!-- Therfore p_copy_particle_to_org_grid is done for one child process per call
	676
	677	DO ip = 1, pmc_s_get_child_npes( child_id )
	678	nr_part = 0
	679	part_adr = 0
	680
	681	CALL pmc_s_getdata_from_buffer( child_id, particle_transfer = .TRUE., child_process_nr = ip )
	682
	683	CALL p_copy_particle_to_org_grid( m, child_id )
	684	ENDDO
	685
	686	ENDDO
	687
[2967]	688	#endif
[2801]	689	END SUBROUTINE pmcp_p_empty_particle_win
[2967]	690
	691
[2801]	692	!------------------------------------------------------------------------------!
	693	! Description:
	694	! ------------
	695	!> parent routine:
	696	!> After the transfer mark all parent particles that are still inside on of the
	697	!> child areas for deletion.
	698	!------------------------------------------------------------------------------!
	699	SUBROUTINE pmcp_p_delete_particles_in_fine_grid_area
	700
	701	IMPLICIT NONE
	702
	703	LOGICAL :: to_delete !< particles outside of model domain are marked as to_delete
	704
	705	INTEGER(iwp) :: i !< loop index (x grid)
	706	INTEGER(iwp) :: j !< loop index (y grid)
	707	INTEGER(iwp) :: k !< loop index (z grid)
	708	INTEGER(iwp) :: m !< loop index (number of particles)
	709	INTEGER(iwp) :: n !< loop index (number of childs)
	710
	711	REAL(wp) :: dx_child !< child grid spacing
	712	REAL(wp) :: dy_child !< child grid spacing
	713	REAL(wp) :: dz_child !< child grid spacing
	714	REAL(wp) :: ny_coord !< north coordinate of child grid
	715	REAL(wp) :: ny_coord_b !< north coordinate of child grid boundary
	716	REAL(wp) :: lx_coord !< left coordinate of child grid
	717	REAL(wp) :: lx_coord_b !< left coordinate of child grid boundary
	718	REAL(wp) :: rx_coord !< right coordinate of child grid
	719	REAL(wp) :: rx_coord_b !< right coordinate of child grid boundary
	720	REAL(wp) :: sy_coord !< south coordinate of child grid
	721	REAL(wp) :: sy_coord_b !< south coordinate of child grid boundary
	722	REAL(wp) :: uz_coord !< upper coordinate of child grid
	723	REAL(wp) :: uz_coord_b !< upper coordinate of child grid boundary
	724	REAL(wp) :: x !< particle position
	725	REAL(wp) :: y !< particle position
	726	REAL(wp) :: z !< particle position
	727
[2967]	728	#if defined( __parallel )
[2801]	729	DO m = 1, get_number_of_childs()
	730	CALL get_child_edges( m, lx_coord, lx_coord_b, rx_coord, rx_coord_b, &
	731	sy_coord, sy_coord_b, ny_coord, ny_coord_b, &
	732	uz_coord, uz_coord_b )
	733
	734
	735	CALL get_child_gridspacing( m, dx_child, dy_child, dz_child )
	736
	737	DO i = nxl, nxr
	738	DO j = nys, nyn
	739	DO k = nzb, nzt
	740	number_of_particles = prt_count(k,j,i)
	741
	742	IF ( number_of_particles == 0 ) CYCLE
	743
	744	particles => grid_particles(k,j,i)%particles(1:number_of_particles)
	745
	746	DO n = 1, number_of_particles
	747	x = particles(n)%x
	748	y = particles(n)%y
	749	z = particles(n)%z
	750
	751	to_delete = ((x > lx_coord .AND. x < rx_coord) .AND. &
	752	(y > sy_coord .AND. y < ny_coord) .AND. &
	753	(z > 0.000000001 .AND. z < uz_coord))
	754
	755	IF ( to_delete ) THEN
	756	particles(n)%particle_mask = .FALSE.
	757	ENDIF
	758	ENDDO
	759	ENDDO
	760	ENDDO
	761	ENDDO
	762
	763	ENDDO
	764
[2967]	765	#endif
[2801]	766	END SUBROUTINE pmcp_p_delete_particles_in_fine_grid_area
[2967]	767
	768
[2801]	769	!------------------------------------------------------------------------------!
	770	! Description:
	771	! ------------
	772	!> general routine:
	773	!> print the total number of of the current model and its child models into a file
	774	!------------------------------------------------------------------------------!
	775	SUBROUTINE pmcp_g_print_number_of_particles (my_time,local_nr_particles)
	776
	777	USE pegrid, &
	778	ONLY: myid
	779
	780	IMPLICIT NONE
	781
	782	INTEGER(iwp),INTENT(IN) :: local_nr_particles !<
	783
	784	REAL(wp),INTENT(IN) :: my_time !<
	785
	786	LOGICAL, SAVE :: is_file_open=.FALSE. !<
	787
	788	INTEGER(iwp) :: child_id !<
	789	INTEGER(iwp) :: child_nr_particles !< total number of particles in all child models
	790	INTEGER(iwp) :: ierr !< error code
	791	INTEGER(iwp) :: m !< loop index (number of childs)
	792
	793	CHARACTER(LEN=16) :: fname !< filename
	794
	795	INTEGER(iwp),DIMENSION(2) :: ivalr !< integer value to be received
	796	INTEGER(iwp),DIMENSION(2) :: ivals !< integer value to be send
	797
[2967]	798	#if defined( __parallel )
[2801]	799	child_nr_particles = 0
	800	IF ( myid == 0 ) THEN
	801	IF ( cpl_id > 1 ) THEN
	802	ivals(1) = local_nr_particles
	803	CALL pmc_send_to_parent( ivals, 1, 0, 400, ierr )
	804	ENDIF
	805	DO m = 1, SIZE( pmc_parent_for_child ) - 1
	806
	807	child_id = pmc_parent_for_child(m)
	808	CALL pmc_recv_from_child( child_id, ivalr, 1, 0, 400, ierr )
	809	child_nr_particles = child_nr_particles + ivalr(1)
	810	ENDDO
	811
	812	IF ( SIZE( pmc_parent_for_child ) > 1 ) THEN
	813	IF ( .NOT. is_file_open ) THEN !kk muss noch auf file_open umgestellt werden
	814	WRITE(fname,'(a,i2.2)') 'nr_particles_',cpl_id
	815	OPEN (333,file = fname)
	816	is_file_open = .true.
	817	ENDIF
	818	WRITE(333,'(f12.2,3i10)') my_time,local_nr_particles + child_nr_particles,local_nr_particles,child_nr_particles
	819	ENDIF
	820	ENDIF
	821
[2967]	822	#endif
[2801]	823	END SUBROUTINE pmcp_g_print_number_of_particles
	824
[2967]	825
[2801]	826	!------------------------------------------------------------------------------!
	827	!------------------------------------------------------------------------------!
	828	! Private subroutines
	829	!------------------------------------------------------------------------------!
	830	!------------------------------------------------------------------------------!
	831
	832	!------------------------------------------------------------------------------!
	833	! Description:
	834	! ------------
	835	!> child routine
	836	!> update the size of the local buffer (coarse_particles)
	837	!------------------------------------------------------------------------------!
	838	SUBROUTINE check_and_alloc_coarse_particle (ic,jc,nr,with_copy)
	839
	840	IMPLICIT NONE
	841
	842	INTEGER(iwp),INTENT(IN) :: ic !< coarse x grid index
	843	INTEGER(iwp),INTENT(IN) :: jc !< coarse y grid index
	844	INTEGER(iwp),INTENT(IN) :: nr !< number of particles to be transferred/stored in local buffer
	845
	846	LOGICAL,INTENT(IN),OPTIONAL :: with_copy !< copy particles in buffer? or reallocate empty buffer
	847
	848	LOGICAL :: with_copy_lo !< local variable of with copy
	849
	850	INTEGER(iwp) :: new_size !< new size of the local buffer
	851	INTEGER(iwp) :: old_size !< old size of the local buffer
	852
	853	TYPE(particle_type), DIMENSION(:), ALLOCATABLE :: tmp_particles_d !<
	854
[2967]	855	#if defined( __parallel )
[2801]	856	with_copy_lo = .FALSE.
	857	IF ( PRESENT( with_copy ) ) with_copy_lo = with_copy
	858
	859	IF ( .NOT. ALLOCATED( coarse_particles(jc,ic)%parent_particles ) ) THEN
	860	new_size = MAX( nr, Min_particles_per_column )
	861	ALLOCATE( coarse_particles(jc,ic)%parent_particles(new_size) )
	862	ELSEIF ( nr > SIZE( coarse_particles(jc,ic)%parent_particles ) ) THEN
	863
	864	old_size = SIZE( coarse_particles(jc,ic)%parent_particles )
	865	new_size = old_size * ( 1.0_wp + alloc_factor / 100.0_wp )
	866	new_size = MAX( nr, new_size, old_size + Min_particles_per_column )
	867
	868	!
	869	!-- Copy existing particles to new particle buffer
	870	IF ( with_copy_lo ) THEN
	871	ALLOCATE( tmp_particles_d(old_size) )
	872	tmp_particles_d(1:old_size) = coarse_particles(jc,ic)%parent_particles
	873
	874	DEALLOCATE( coarse_particles(jc,ic)%parent_particles )
	875	ALLOCATE( coarse_particles(jc,ic)%parent_particles(new_size) )
	876
	877	coarse_particles(jc,ic)%parent_particles(1:old_size) = tmp_particles_d(1:old_size)
	878	coarse_particles(jc,ic)%parent_particles(old_size+1:new_size) = zero_particle
	879
	880	DEALLOCATE( tmp_particles_d )
	881	!
	882	!-- allocate or reallocate an empty buffer
	883	ELSE
	884	DEALLOCATE( coarse_particles(jc,ic)%parent_particles )
	885	ALLOCATE( coarse_particles(jc,ic)%parent_particles(new_size) )
	886	ENDIF
	887	ENDIF
	888
[2967]	889	#endif
[2801]	890	END SUBROUTINE check_and_alloc_coarse_particle
	891
[2967]	892
[2801]	893	!------------------------------------------------------------------------------!
	894	! Description:
	895	! ------------
	896	!> child routine:
	897	!> copy/sort particles out of the local buffer into the respective grid boxes
	898	!------------------------------------------------------------------------------!
	899	SUBROUTINE c_copy_particle_to_child_grid
	900
	901	IMPLICIT NONE
	902
	903	INTEGER(iwp) :: ic !< coarse x grid index
	904	INTEGER(iwp) :: icl !< left boundary in coarse(parent) index space
	905	INTEGER(iwp) :: icr !< right boundary in coarse(parent) index space
	906	INTEGER(iwp) :: ip !< x grid index
	907	INTEGER(iwp) :: jc !< coarse y grid index
	908	INTEGER(iwp) :: jcn !< north boundary in coarse(parent) index space
	909	INTEGER(iwp) :: jcs !< south boundary in coarse(parent) index space
	910	INTEGER(iwp) :: jp !< y grid index
	911	INTEGER(iwp) :: kp !< z grid index
	912	INTEGER(iwp) :: n !< loop index (number of particles)
	913	INTEGER(iwp) :: nr !< short variable for name number or particles
	914
	915	REAL(wp) :: xc !< child x coordinate
	916	REAL(wp) :: xoc !< child x origin
	917	REAL(wp) :: yc !< child y coordinate
	918	REAL(wp) :: yoc !< child y origin
	919	REAL(wp) :: zc !< child z coordinate
	920
[2967]	921	#if defined( __parallel )
[2801]	922	!
	923	!-- Child domain boundaries in the parent index space
	924	icl = coarse_bound(1)
	925	icr = coarse_bound(2)
	926	jcs = coarse_bound(3)
	927	jcn = coarse_bound(4)
	928
	929	DO ic = icl, icr
	930	DO jc = jcs, jcn
	931	nr = coarse_particles(jc,ic)%nr_particle
	932
	933	IF ( nr > 0 ) THEN
	934	DO n = 1, nr
	935	xc = coarse_particles(jc,ic)%parent_particles(n)%x-lower_left_coord_x
	936	yc = coarse_particles(jc,ic)%parent_particles(n)%y-lower_left_coord_y
	937	zc = coarse_particles(jc,ic)%parent_particles(n)%z
	938	xoc = coarse_particles(jc,ic)%parent_particles(n)%origin_x-lower_left_coord_x
	939	yoc = coarse_particles(jc,ic)%parent_particles(n)%origin_y-lower_left_coord_y
	940	ip = xc / dx
	941	jp = yc / dy
	942	kp = nzt
	943	DO WHILE ( zw(kp-1) > zc .AND. kp > nzb + 1 ) ! kk search loop has to be optimzed !!!
	944	kp = kp - 1
	945	ENDDO
	946
	947	IF ( ip >= nxl .AND. ip <= nxr .AND. jp >= nys .AND. jp <= nyn ) THEN
	948	prt_count(kp,jp,ip) = prt_count(kp,jp,ip) + 1
	949	IF ( prt_count(kp,jp,ip) > SIZE( grid_particles(kp,jp,ip)%particles ) ) THEN
	950	CALL realloc_particles_array( ip, jp, kp )
	951	ENDIF
	952	coarse_particles(jc,ic)%parent_particles(n)%x = xc ! Adjust coordinates to child grid
	953	coarse_particles(jc,ic)%parent_particles(n)%y = yc
	954	coarse_particles(jc,ic)%parent_particles(n)%origin_x = xoc ! Adjust origins to child grid
	955	coarse_particles(jc,ic)%parent_particles(n)%origin_y = yoc
	956	grid_particles(kp,jp,ip)%particles(prt_count(kp,jp,ip)) = coarse_particles(jc,ic)%parent_particles(n)
	957	ENDIF
	958	ENDDO
	959	ENDIF
	960	ENDDO
	961	ENDDO
	962
[2967]	963	#endif
[2801]	964	END SUBROUTINE c_copy_particle_to_child_grid
[2967]	965
	966
[2801]	967	!------------------------------------------------------------------------------!
	968	! Description:
	969	! ------------
	970	!> child routine:
	971	!> copy particles which left the model area into the local buffer
	972	!------------------------------------------------------------------------------!
	973	SUBROUTINE c_copy_particle_to_coarse_grid
	974
	975	IMPLICIT NONE
	976
	977	LOGICAL :: boundary_particle !<
	978
	979	INTEGER(iwp) :: i !< loop index (x grid)
	980	INTEGER(iwp) :: ic !< loop index (coarse x grid)
	981	INTEGER(iwp) :: icl !< left boundary in coarse(parent) index space
	982	INTEGER(iwp) :: icr !< left boundary in coarse(parent) index space
	983	INTEGER(iwp) :: ierr !< error code
	984	INTEGER(iwp) :: j !< loop index (y grid)
	985	INTEGER(iwp) :: jc !< loop index (coarse y grid)
	986	INTEGER(iwp) :: jcs !< south boundary in coarse(parent) index space
	987	INTEGER(iwp) :: jcn !< north boundary in coarse(parent) index space
	988	INTEGER(iwp) :: k !< loop index (z grid)
	989	INTEGER(iwp) :: n !< loop index (number of particles)
	990
[3123]	991	REAL(wp) :: x !< x coordinate
	992	REAL(wp) :: xo !< x origin
	993	REAL(wp) :: x_left !< absolute left boundary
	994	REAL(wp) :: x_right !< absolute right boundary
	995	REAL(wp) :: y !< left boundary in coarse(parent) index space
	996	REAL(wp) :: yo !< y origin
	997	REAL(wp) :: y_north !< absolute north boundary
	998	REAL(wp) :: y_south !< absoulte south boundary
	999	REAL(wp) :: z !< z coordinate
[2801]	1000
[2967]	1001	#if defined( __parallel )
[2801]	1002	!
	1003	!-- Child domain boundaries in the parent index space
	1004
	1005	icl = coarse_bound(1)
	1006	icr = coarse_bound(2)
	1007	jcs = coarse_bound(3)
	1008	jcn = coarse_bound(4)
	1009
	1010	!
	1011	!-- absolute coordinates
	1012	x_left = coord_x(0)
	1013	x_right = coord_x(nx) + dx
	1014	y_south = coord_y(0)
	1015	y_north = coord_y(ny) + dy
	1016
	1017	! Clear Particle Buffer
	1018
	1019	DO ic = icl, icr
	1020	DO jc = jcs, jcn
	1021	coarse_particles(jc,ic)%nr_particle = 0
	1022	ENDDO
	1023	ENDDO
	1024
	1025	!
	1026	!-- Determine particles which leave the inner area in east or west dirextion
	1027	!-- Compute only first (nxl) and last (nxr) loop iterration.
	1028	DO i = nxl, nxr
	1029	DO j = nys, nyn
	1030	DO k = nzb + 1, nzt
	1031	number_of_particles = prt_count(k,j,i)
	1032	IF ( number_of_particles <= 0 ) CYCLE
	1033	particles => grid_particles(k,j,i)%particles(1:number_of_particles)
	1034	DO n = 1, number_of_particles
	1035	IF ( particles(n)%particle_mask ) THEN
	1036	x = particles(n)%x+ lower_left_coord_x
	1037	y = particles(n)%y+ lower_left_coord_y
	1038	xo = particles(n)%origin_x + lower_left_coord_x
	1039	yo = particles(n)%origin_y + lower_left_coord_y
	1040	z = particles(n)%z
	1041
	1042	boundary_particle = .FALSE.
	1043	boundary_particle = boundary_particle .OR. (x < x_left .OR. x > x_right)
	1044	boundary_particle = boundary_particle .OR. (y < y_south .OR. y > y_north)
	1045	boundary_particle = boundary_particle .OR. (z > zw(nzt))
	1046
	1047	IF ( boundary_particle ) THEN
	1048	ic = x / cg%dx !TODO anpassen auf Mehrfachnesting
	1049	jc = y / cg%dy
	1050
	1051	IF ( ic >= icl .AND. ic <= icr .AND. jc >= jcs .AND. jc <= jcn ) THEN
	1052	coarse_particles(jc,ic)%nr_particle = coarse_particles(jc,ic)%nr_particle + 1
	1053	CALL check_and_alloc_coarse_particle( ic, jc, coarse_particles(jc,ic)%nr_particle, with_copy=.TRUE. )
	1054
	1055	coarse_particles(jc,ic)%parent_particles(coarse_particles(jc,ic)%nr_particle) = particles(n)
	1056	coarse_particles(jc,ic)%parent_particles(coarse_particles(jc,ic)%nr_particle)%x = x !adapt to global coordinates
	1057	coarse_particles(jc,ic)%parent_particles(coarse_particles(jc,ic)%nr_particle)%y = y
	1058	coarse_particles(jc,ic)%parent_particles(coarse_particles(jc,ic)%nr_particle)%origin_x = xo
	1059	coarse_particles(jc,ic)%parent_particles(coarse_particles(jc,ic)%nr_particle)%origin_y = yo
	1060	!-- Mark particle as deleted after copying it to the transfer buffer
	1061	grid_particles(k,j,i)%particles(n)%particle_mask = .FALSE.
	1062	ELSE
	1063	WRITE(9,'(a,10i6)') 'This should not happen ',i,j,k,ic,jc,icl,icr,jcs,jcn
	1064	CALL MPI_Abort( MPI_COMM_WORLD, 9999, ierr )
	1065	ENDIF
	1066	ENDIF
	1067	ENDIF
	1068	ENDDO
	1069	ENDDO
	1070	ENDDO
	1071	ENDDO
	1072
	1073	!
	1074	!- Pack particles (eliminate those marked for deletion),
	1075	!- determine new number of particles
	1076	CALL lpm_sort_in_subboxes
	1077
[2967]	1078	#endif
[2801]	1079	END SUBROUTINE c_copy_particle_to_coarse_grid
[2967]	1080
	1081
[2801]	1082	!------------------------------------------------------------------------------!
	1083	! Description:
	1084	! ------------
	1085	!> parent routine:
	1086	!> copy/sort particles from the MPI window into the respective grid boxes
	1087	!------------------------------------------------------------------------------!
	1088	SUBROUTINE p_copy_particle_to_org_grid( m, child_id )
	1089
	1090	IMPLICIT NONE
	1091
	1092	INTEGER(iwp),INTENT(IN) :: child_id !<
	1093	INTEGER(iwp),INTENT(IN) :: m !<
	1094
	1095	INTEGER(iwp) :: i !< loop index (x grid)
	1096	INTEGER(iwp) :: j !< loop index (y grid)
	1097	INTEGER(iwp) :: k !< loop index (z grid)
	1098	INTEGER(iwp) :: n !< loop index (nr part)
	1099	INTEGER(iwp) :: nr !< short variable name for nr_part
	1100	INTEGER(iwp) :: pindex !< short variable name part_adr
	1101
[3123]	1102	REAL(wp) :: x !< x coordinate
	1103	REAL(wp) :: xo !< x origin
	1104	REAL(wp) :: y !< y coordinate
	1105	REAL(wp) :: yo !< y origin
	1106	REAL(wp) :: z !< z coordinate
[2801]	1107
	1108	INTEGER(iwp),DIMENSION(1) :: buf_shape !<
	1109
[2967]	1110	#if defined( __parallel )
[2801]	1111	buf_shape(1) = max_nr_particle_in_rma_win
	1112	CALL C_F_POINTER( buf_ptr(m), particle_in_win , buf_shape )
	1113
	1114	DO i = nxl, nxr
	1115	DO j = nys, nyn
	1116	nr = nr_part(j,i)
	1117	IF ( nr > 0 ) THEN
	1118	pindex = part_adr(j,i)
	1119	DO n = 1, nr
	1120	x = particle_in_win(pindex)%x-lower_left_coord_x
	1121	y = particle_in_win(pindex)%y-lower_left_coord_y
	1122	z = particle_in_win(pindex)%z
	1123	xo = particle_in_win(pindex)%origin_x-lower_left_coord_x
	1124	yo = particle_in_win(pindex)%origin_y-lower_left_coord_y
	1125	k = nzt + 1
	1126	DO WHILE ( zw(k-1) > z .AND. k > nzb + 1 ) ! kk search loop has to be optimzed !!!
	1127	k = k - 1
	1128	END DO
	1129
	1130	prt_count(k,j,i) = prt_count(k,j,i) + 1
	1131	IF ( prt_count(k,j,i) > SIZE( grid_particles(k,j,i)%particles ) ) THEN
	1132	CALL realloc_particles_array( i, j, k )
	1133	ENDIF
	1134	grid_particles(k,j,i)%particles(prt_count(k,j,i)) = particle_in_win(pindex)
	1135
	1136	!
	1137	!-- Update particle positions and origins relative to parent domain
	1138	grid_particles(k,j,i)%particles(prt_count(k,j,i))%x = x
	1139	grid_particles(k,j,i)%particles(prt_count(k,j,i))%y = y
	1140	grid_particles(k,j,i)%particles(prt_count(k,j,i))%origin_x = xo
	1141	grid_particles(k,j,i)%particles(prt_count(k,j,i))%origin_y = yo
	1142	pindex = pindex + 1
	1143	ENDDO
	1144	ENDIF
	1145	ENDDO
	1146	ENDDO
[2967]	1147
	1148	#endif
[2801]	1149	END SUBROUTINE p_copy_particle_to_org_grid
	1150
	1151
	1152	END MODULE pmc_particle_interface

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