!> @file lpm_exchange_horiz.f90 !------------------------------------------------------------------------------! ! This file is part of the PALM model system. ! ! PALM is free software: you can redistribute it and/or modify it under the ! terms of the GNU General Public License as published by the Free Software ! Foundation, either version 3 of the License, or (at your option) any later ! version. ! ! PALM is distributed in the hope that it will be useful, but WITHOUT ANY ! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR ! A PARTICULAR PURPOSE. See the GNU General Public License for more details. ! ! You should have received a copy of the GNU General Public License along with ! PALM. If not, see . ! ! Copyright 1997-2019 Leibniz Universitaet Hannover !------------------------------------------------------------------------------! ! ! Current revisions: ! ------------------ ! ! ! Former revisions: ! ----------------- ! $Id: lpm_exchange_horiz.f90 3655 2019-01-07 16:51:22Z pavelkrc $ ! dz was replaced by dz(1) to allow for right vertical stretching ! ! 3049 2018-05-29 13:52:36Z Giersch ! Error messages revised ! ! 3046 2018-05-29 08:02:15Z Giersch ! Bugfix for gfortran: Replace the function C_SIZEOF with STORAGE_SIZE. ! Preprocessor directive(__gfortran) for c_sizeof removed. ! ! 2801 2018-02-14 16:01:55Z thiele ! Introduce particle transfer in nested models. ! ! 2718 2018-01-02 08:49:38Z maronga ! Corrected "Former revisions" section ! ! 2710 2017-12-19 12:50:11Z suehring ! Changes from last commit documented ! ! 2709 2017-12-19 12:49:40Z suehring ! Bugfix in CFL check. ! Further bugfix, non-allocated array used in case of 1D decomposition. ! ! 2696 2017-12-14 17:12:51Z kanani ! Change in file header (GPL part) ! ! 2632 2017-11-20 15:35:52Z schwenkel ! Bugfix in write statement ! ! 2630 2017-11-20 12:58:20Z schwenkel ! Enabled particle advection with grid stretching. Furthermore, the CFL- ! criterion is checked for every particle at every time step. ! ! 2606 2017-11-10 10:36:31Z schwenkel ! Changed particle box locations: center of particle box now coincides ! with scalar grid point of same index. ! lpm_move_particle now moves inner particles that would leave the core ! to the respective boundary gridbox. Afterwards they get transferred by ! lpm_exchange_horiz. This allows particles to move more than one gridbox ! independent of domain composition. ! Renamed module and subroutines: lpm_pack_arrays_mod -> lpm_pack_and_sort_mod ! lpm_pack_all_arrays -> lpm_sort_in_subboxes, lpm_pack_arrays -> lpm_pack ! lpm_sort -> lpm_sort_timeloop_done ! ! 2330 2017-08-03 14:26:02Z schwenkel ! Bugfix: Also for gfortran compilable, function c_sizeof is not used. ! ! 2305 2017-07-06 11:18:47Z hoffmann ! Improved calculation of particle IDs. ! ! 2245 2017-06-02 14:37:10Z schwenkel ! Bugfix in Add_particles_to_gridcell: ! Apply boundary conditions also in y-direction ! ! 2151 2017-02-15 10:42:16Z schwenkel ! Bugfix in lpm_move_particle that prevents ! false production of additional particles ! ! 2000 2016-08-20 18:09:15Z knoop ! Forced header and separation lines into 80 columns ! ! 1936 2016-06-13 13:37:44Z suehring ! Deallocation of unused memory ! ! 1929 2016-06-09 16:25:25Z suehring ! Bugfixes: ! - reallocation of new particles ! ( did not work for small number of min_nr_particle ) ! - dynamical reallocation of north-south exchange arrays ( particles got lost ) ! - north-south exchange ( nr_move_north, nr_move_south were overwritten by zero ) ! - horizontal particle boundary conditions in serial mode ! ! Remove unused variables ! Descriptions in variable declaration blocks added ! ! 1873 2016-04-18 14:50:06Z maronga ! Module renamed (removed _mod) ! ! ! 1850 2016-04-08 13:29:27Z maronga ! Module renamed ! ! ! 1822 2016-04-07 07:49:42Z hoffmann ! Tails removed. Unused variables removed. ! ! 1783 2016-03-06 18:36:17Z raasch ! new netcdf-module included ! ! 1691 2015-10-26 16:17:44Z maronga ! Formatting corrections. ! ! 1685 2015-10-08 07:32:13Z raasch ! bugfix concerning vertical index offset in case of ocean ! ! 1682 2015-10-07 23:56:08Z knoop ! Code annotations made doxygen readable ! ! 1359 2014-04-11 17:15:14Z hoffmann ! New particle structure integrated. ! Kind definition added to all floating point numbers. ! ! 1327 2014-03-21 11:00:16Z raasch ! -netcdf output queries ! ! 1320 2014-03-20 08:40:49Z raasch ! ONLY-attribute added to USE-statements, ! kind-parameters added to all INTEGER and REAL declaration statements, ! kinds are defined in new module kinds, ! comment fields (!:) to be used for variable explanations added to ! all variable declaration statements ! ! 1318 2014-03-17 13:35:16Z raasch ! module interfaces removed ! ! 1036 2012-10-22 13:43:42Z raasch ! code put under GPL (PALM 3.9) ! ! 851 2012-03-15 14:32:58Z raasch ! Bugfix: resetting of particle_mask and tail mask moved from end of this ! routine to lpm ! ! 849 2012-03-15 10:35:09Z raasch ! initial revision (former part of advec_particles) ! ! ! Description: ! ------------ !> Exchange of particles between the subdomains. !------------------------------------------------------------------------------! MODULE lpm_exchange_horiz_mod USE, INTRINSIC :: ISO_C_BINDING USE arrays_3d, & ONLY: zw USE control_parameters, & ONLY: dz, message_string, simulated_time USE cpulog, & ONLY: cpu_log, log_point_s USE grid_variables, & ONLY: ddx, ddy, dx, dy USE indices, & ONLY: nx, nxl, nxr, ny, nyn, nys, nzb, nzt USE kinds USE lpm_pack_and_sort_mod, & ONLY: lpm_pack USE netcdf_interface, & ONLY: netcdf_data_format USE particle_attributes, & ONLY: alloc_factor, deleted_particles, grid_particles, & ibc_par_lr, ibc_par_ns, min_nr_particle, & number_of_particles, & offset_ocean_nzt, offset_ocean_nzt_m1, particles, & particle_type, prt_count, trlp_count_sum, & trlp_count_recv_sum, trnp_count_sum, trnp_count_recv_sum, & trrp_count_sum, trrp_count_recv_sum, trsp_count_sum, & trsp_count_recv_sum, zero_particle USE pegrid IMPLICIT NONE INTEGER(iwp), PARAMETER :: NR_2_direction_move = 10000 !< INTEGER(iwp) :: nr_move_north !< INTEGER(iwp) :: nr_move_south !< TYPE(particle_type), DIMENSION(:), ALLOCATABLE :: move_also_north TYPE(particle_type), DIMENSION(:), ALLOCATABLE :: move_also_south SAVE PRIVATE PUBLIC lpm_exchange_horiz, lpm_move_particle, realloc_particles_array, & dealloc_particles_array INTERFACE lpm_exchange_horiz MODULE PROCEDURE lpm_exchange_horiz END INTERFACE lpm_exchange_horiz INTERFACE lpm_move_particle MODULE PROCEDURE lpm_move_particle END INTERFACE lpm_move_particle INTERFACE realloc_particles_array MODULE PROCEDURE realloc_particles_array END INTERFACE realloc_particles_array INTERFACE dealloc_particles_array MODULE PROCEDURE dealloc_particles_array END INTERFACE dealloc_particles_array CONTAINS !------------------------------------------------------------------------------! ! Description: ! ------------ !> Exchange between subdomains. !> As soon as one particle has moved beyond the boundary of the domain, it !> is included in the relevant transfer arrays and marked for subsequent !> deletion on this PE. !> First sweep for crossings in x direction. Find out first the number of !> particles to be transferred and allocate temporary arrays needed to store !> them. !> For a one-dimensional decomposition along y, no transfer is necessary, !> because the particle remains on the PE, but the particle coordinate has to !> be adjusted. !------------------------------------------------------------------------------! SUBROUTINE lpm_exchange_horiz IMPLICIT NONE INTEGER(iwp) :: i !< grid index (x) of particle positition INTEGER(iwp) :: ip !< index variable along x INTEGER(iwp) :: j !< grid index (y) of particle positition INTEGER(iwp) :: jp !< index variable along y INTEGER(iwp) :: kp !< index variable along z INTEGER(iwp) :: n !< particle index variable INTEGER(iwp) :: par_size !< Particle size in bytes INTEGER(iwp) :: trlp_count !< number of particles send to left PE INTEGER(iwp) :: trlp_count_recv !< number of particles receive from right PE INTEGER(iwp) :: trnp_count !< number of particles send to north PE INTEGER(iwp) :: trnp_count_recv !< number of particles receive from south PE INTEGER(iwp) :: trrp_count !< number of particles send to right PE INTEGER(iwp) :: trrp_count_recv !< number of particles receive from left PE INTEGER(iwp) :: trsp_count !< number of particles send to south PE INTEGER(iwp) :: trsp_count_recv !< number of particles receive from north PE TYPE(particle_type), DIMENSION(:), ALLOCATABLE :: rvlp !< particles received from right PE TYPE(particle_type), DIMENSION(:), ALLOCATABLE :: rvnp !< particles received from south PE TYPE(particle_type), DIMENSION(:), ALLOCATABLE :: rvrp !< particles received from left PE TYPE(particle_type), DIMENSION(:), ALLOCATABLE :: rvsp !< particles received from north PE TYPE(particle_type), DIMENSION(:), ALLOCATABLE :: trlp !< particles send to left PE TYPE(particle_type), DIMENSION(:), ALLOCATABLE :: trnp !< particles send to north PE TYPE(particle_type), DIMENSION(:), ALLOCATABLE :: trrp !< particles send to right PE TYPE(particle_type), DIMENSION(:), ALLOCATABLE :: trsp !< particles send to south PE CALL cpu_log( log_point_s(23), 'lpm_exchange_horiz', 'start' ) #if defined( __parallel ) ! !-- Exchange between subdomains. !-- As soon as one particle has moved beyond the boundary of the domain, it !-- is included in the relevant transfer arrays and marked for subsequent !-- deletion on this PE. !-- First sweep for crossings in x direction. Find out first the number of !-- particles to be transferred and allocate temporary arrays needed to store !-- them. !-- For a one-dimensional decomposition along y, no transfer is necessary, !-- because the particle remains on the PE, but the particle coordinate has to !-- be adjusted. trlp_count = 0 trrp_count = 0 trlp_count_recv = 0 trrp_count_recv = 0 IF ( pdims(1) /= 1 ) THEN ! !-- First calculate the storage necessary for sending and receiving the data. !-- Compute only first (nxl) and last (nxr) loop iterration. DO ip = nxl, nxr, nxr - nxl DO jp = nys, nyn DO kp = nzb+1, nzt number_of_particles = prt_count(kp,jp,ip) IF ( number_of_particles <= 0 ) CYCLE particles => grid_particles(kp,jp,ip)%particles(1:number_of_particles) DO n = 1, number_of_particles IF ( particles(n)%particle_mask ) THEN i = particles(n)%x * ddx ! !-- Above calculation does not work for indices less than zero IF ( particles(n)%x < 0.0_wp) i = -1 IF ( i < nxl ) THEN trlp_count = trlp_count + 1 ELSEIF ( i > nxr ) THEN trrp_count = trrp_count + 1 ENDIF ENDIF ENDDO ENDDO ENDDO ENDDO IF ( trlp_count == 0 ) trlp_count = 1 IF ( trrp_count == 0 ) trrp_count = 1 ALLOCATE( trlp(trlp_count), trrp(trrp_count) ) trlp = zero_particle trrp = zero_particle trlp_count = 0 trrp_count = 0 ENDIF ! !-- Compute only first (nxl) and last (nxr) loop iterration DO ip = nxl, nxr, nxr-nxl DO jp = nys, nyn DO kp = nzb+1, nzt number_of_particles = prt_count(kp,jp,ip) IF ( number_of_particles <= 0 ) CYCLE particles => grid_particles(kp,jp,ip)%particles(1:number_of_particles) DO n = 1, number_of_particles ! !-- Only those particles that have not been marked as 'deleted' may !-- be moved. IF ( particles(n)%particle_mask ) THEN i = particles(n)%x * ddx ! !-- Above calculation does not work for indices less than zero IF ( particles(n)%x < 0.0_wp ) i = -1 IF ( i < nxl ) THEN IF ( i < 0 ) THEN ! !-- Apply boundary condition along x IF ( ibc_par_lr == 0 ) THEN ! !-- Cyclic condition IF ( pdims(1) == 1 ) THEN particles(n)%x = ( nx + 1 ) * dx + particles(n)%x particles(n)%origin_x = ( nx + 1 ) * dx + & particles(n)%origin_x ELSE trlp_count = trlp_count + 1 trlp(trlp_count) = particles(n) trlp(trlp_count)%x = ( nx + 1 ) * dx + trlp(trlp_count)%x trlp(trlp_count)%origin_x = trlp(trlp_count)%origin_x + & ( nx + 1 ) * dx particles(n)%particle_mask = .FALSE. deleted_particles = deleted_particles + 1 IF ( trlp(trlp_count)%x >= (nx + 1)* dx - 1.0E-12_wp ) THEN trlp(trlp_count)%x = trlp(trlp_count)%x - 1.0E-10_wp !++ why is 1 subtracted in next statement??? trlp(trlp_count)%origin_x = trlp(trlp_count)%origin_x - 1 ENDIF ENDIF ELSEIF ( ibc_par_lr == 1 ) THEN ! !-- Particle absorption particles(n)%particle_mask = .FALSE. deleted_particles = deleted_particles + 1 ELSEIF ( ibc_par_lr == 2 ) THEN ! !-- Particle reflection particles(n)%x = -particles(n)%x particles(n)%speed_x = -particles(n)%speed_x ENDIF ELSE ! !-- Store particle data in the transfer array, which will be !-- send to the neighbouring PE trlp_count = trlp_count + 1 trlp(trlp_count) = particles(n) particles(n)%particle_mask = .FALSE. deleted_particles = deleted_particles + 1 ENDIF ELSEIF ( i > nxr ) THEN IF ( i > nx ) THEN ! !-- Apply boundary condition along x IF ( ibc_par_lr == 0 ) THEN ! !-- Cyclic condition IF ( pdims(1) == 1 ) THEN particles(n)%x = particles(n)%x - ( nx + 1 ) * dx particles(n)%origin_x = particles(n)%origin_x - & ( nx + 1 ) * dx ELSE trrp_count = trrp_count + 1 trrp(trrp_count) = particles(n) trrp(trrp_count)%x = trrp(trrp_count)%x - ( nx + 1 ) * dx trrp(trrp_count)%origin_x = trrp(trrp_count)%origin_x - & ( nx + 1 ) * dx particles(n)%particle_mask = .FALSE. deleted_particles = deleted_particles + 1 ENDIF ELSEIF ( ibc_par_lr == 1 ) THEN ! !-- Particle absorption particles(n)%particle_mask = .FALSE. deleted_particles = deleted_particles + 1 ELSEIF ( ibc_par_lr == 2 ) THEN ! !-- Particle reflection particles(n)%x = 2 * ( nx * dx ) - particles(n)%x particles(n)%speed_x = -particles(n)%speed_x ENDIF ELSE ! !-- Store particle data in the transfer array, which will be send !-- to the neighbouring PE trrp_count = trrp_count + 1 trrp(trrp_count) = particles(n) particles(n)%particle_mask = .FALSE. deleted_particles = deleted_particles + 1 ENDIF ENDIF ENDIF ENDDO ENDDO ENDDO ENDDO ! !-- STORAGE_SIZE returns the storage size of argument A in bits. However , it !-- is needed in bytes. The function C_SIZEOF which produces this value directly !-- causes problems with gfortran. For this reason the use of C_SIZEOF is avoided par_size = STORAGE_SIZE(trlp(1))/8 ! !-- Allocate arrays required for north-south exchange, as these !-- are used directly after particles are exchange along x-direction. ALLOCATE( move_also_north(1:NR_2_direction_move) ) ALLOCATE( move_also_south(1:NR_2_direction_move) ) nr_move_north = 0 nr_move_south = 0 ! !-- Send left boundary, receive right boundary (but first exchange how many !-- and check, if particle storage must be extended) IF ( pdims(1) /= 1 ) THEN CALL MPI_SENDRECV( trlp_count, 1, MPI_INTEGER, pleft, 0, & trrp_count_recv, 1, MPI_INTEGER, pright, 0, & comm2d, status, ierr ) ALLOCATE(rvrp(MAX(1,trrp_count_recv))) CALL MPI_SENDRECV( trlp, max(1,trlp_count)*par_size, MPI_BYTE,& pleft, 1, rvrp, & max(1,trrp_count_recv)*par_size, MPI_BYTE, pright, 1,& comm2d, status, ierr ) IF ( trrp_count_recv > 0 ) CALL Add_particles_to_gridcell(rvrp(1:trrp_count_recv)) DEALLOCATE(rvrp) ! !-- Send right boundary, receive left boundary CALL MPI_SENDRECV( trrp_count, 1, MPI_INTEGER, pright, 0, & trlp_count_recv, 1, MPI_INTEGER, pleft, 0, & comm2d, status, ierr ) ALLOCATE(rvlp(MAX(1,trlp_count_recv))) ! !-- This MPI_SENDRECV should work even with odd mixture on 32 and 64 Bit !-- variables in structure particle_type (due to the calculation of par_size) CALL MPI_SENDRECV( trrp, max(1,trrp_count)*par_size, MPI_BYTE,& pright, 1, rvlp, & max(1,trlp_count_recv)*par_size, MPI_BYTE, pleft, 1, & comm2d, status, ierr ) IF ( trlp_count_recv > 0 ) CALL Add_particles_to_gridcell(rvlp(1:trlp_count_recv)) DEALLOCATE( rvlp ) DEALLOCATE( trlp, trrp ) ENDIF ! !-- Check whether particles have crossed the boundaries in y direction. Note !-- that this case can also apply to particles that have just been received !-- from the adjacent right or left PE. !-- Find out first the number of particles to be transferred and allocate !-- temporary arrays needed to store them. !-- For a one-dimensional decomposition along y, no transfer is necessary, !-- because the particle remains on the PE. trsp_count = nr_move_south trnp_count = nr_move_north trsp_count_recv = 0 trnp_count_recv = 0 IF ( pdims(2) /= 1 ) THEN ! !-- First calculate the storage necessary for sending and receiving the !-- data DO ip = nxl, nxr DO jp = nys, nyn, nyn-nys !compute only first (nys) and last (nyn) loop iterration DO kp = nzb+1, nzt number_of_particles = prt_count(kp,jp,ip) IF ( number_of_particles <= 0 ) CYCLE particles => grid_particles(kp,jp,ip)%particles(1:number_of_particles) DO n = 1, number_of_particles IF ( particles(n)%particle_mask ) THEN j = particles(n)%y * ddy ! !-- Above calculation does not work for indices less than zero IF ( particles(n)%y < 0.0_wp) j = -1 IF ( j < nys ) THEN trsp_count = trsp_count + 1 ELSEIF ( j > nyn ) THEN trnp_count = trnp_count + 1 ENDIF ENDIF ENDDO ENDDO ENDDO ENDDO IF ( trsp_count == 0 ) trsp_count = 1 IF ( trnp_count == 0 ) trnp_count = 1 ALLOCATE( trsp(trsp_count), trnp(trnp_count) ) trsp = zero_particle trnp = zero_particle trsp_count = nr_move_south trnp_count = nr_move_north trsp(1:nr_move_south) = move_also_south(1:nr_move_south) trnp(1:nr_move_north) = move_also_north(1:nr_move_north) ENDIF DO ip = nxl, nxr DO jp = nys, nyn, nyn-nys ! compute only first (nys) and last (nyn) loop iterration DO kp = nzb+1, nzt number_of_particles = prt_count(kp,jp,ip) IF ( number_of_particles <= 0 ) CYCLE particles => grid_particles(kp,jp,ip)%particles(1:number_of_particles) DO n = 1, number_of_particles ! !-- Only those particles that have not been marked as 'deleted' may !-- be moved. IF ( particles(n)%particle_mask ) THEN j = particles(n)%y * ddy ! !-- Above calculation does not work for indices less than zero IF ( particles(n)%y < 0.0_wp ) j = -1 IF ( j < nys ) THEN IF ( j < 0 ) THEN ! !-- Apply boundary condition along y IF ( ibc_par_ns == 0 ) THEN ! !-- Cyclic condition IF ( pdims(2) == 1 ) THEN particles(n)%y = ( ny + 1 ) * dy + particles(n)%y particles(n)%origin_y = ( ny + 1 ) * dy + & particles(n)%origin_y ELSE trsp_count = trsp_count + 1 trsp(trsp_count) = particles(n) trsp(trsp_count)%y = ( ny + 1 ) * dy + & trsp(trsp_count)%y trsp(trsp_count)%origin_y = trsp(trsp_count)%origin_y & + ( ny + 1 ) * dy particles(n)%particle_mask = .FALSE. deleted_particles = deleted_particles + 1 IF ( trsp(trsp_count)%y >= (ny+1)* dy - 1.0E-12_wp ) THEN trsp(trsp_count)%y = trsp(trsp_count)%y - 1.0E-10_wp !++ why is 1 subtracted in next statement??? trsp(trsp_count)%origin_y = & trsp(trsp_count)%origin_y - 1 ENDIF ENDIF ELSEIF ( ibc_par_ns == 1 ) THEN ! !-- Particle absorption particles(n)%particle_mask = .FALSE. deleted_particles = deleted_particles + 1 ELSEIF ( ibc_par_ns == 2 ) THEN ! !-- Particle reflection particles(n)%y = -particles(n)%y particles(n)%speed_y = -particles(n)%speed_y ENDIF ELSE ! !-- Store particle data in the transfer array, which will !-- be send to the neighbouring PE trsp_count = trsp_count + 1 trsp(trsp_count) = particles(n) particles(n)%particle_mask = .FALSE. deleted_particles = deleted_particles + 1 ENDIF ELSEIF ( j > nyn ) THEN IF ( j > ny ) THEN ! !-- Apply boundary condition along y IF ( ibc_par_ns == 0 ) THEN ! !-- Cyclic condition IF ( pdims(2) == 1 ) THEN particles(n)%y = particles(n)%y - ( ny + 1 ) * dy particles(n)%origin_y = & particles(n)%origin_y - ( ny + 1 ) * dy ELSE trnp_count = trnp_count + 1 trnp(trnp_count) = particles(n) trnp(trnp_count)%y = & trnp(trnp_count)%y - ( ny + 1 ) * dy trnp(trnp_count)%origin_y = & trnp(trnp_count)%origin_y - ( ny + 1 ) * dy particles(n)%particle_mask = .FALSE. deleted_particles = deleted_particles + 1 ENDIF ELSEIF ( ibc_par_ns == 1 ) THEN ! !-- Particle absorption particles(n)%particle_mask = .FALSE. deleted_particles = deleted_particles + 1 ELSEIF ( ibc_par_ns == 2 ) THEN ! !-- Particle reflection particles(n)%y = 2 * ( ny * dy ) - particles(n)%y particles(n)%speed_y = -particles(n)%speed_y ENDIF ELSE ! !-- Store particle data in the transfer array, which will !-- be send to the neighbouring PE trnp_count = trnp_count + 1 trnp(trnp_count) = particles(n) particles(n)%particle_mask = .FALSE. deleted_particles = deleted_particles + 1 ENDIF ENDIF ENDIF ENDDO ENDDO ENDDO ENDDO ! !-- Send front boundary, receive back boundary (but first exchange how many !-- and check, if particle storage must be extended) IF ( pdims(2) /= 1 ) THEN CALL MPI_SENDRECV( trsp_count, 1, MPI_INTEGER, psouth, 0, & trnp_count_recv, 1, MPI_INTEGER, pnorth, 0, & comm2d, status, ierr ) ALLOCATE(rvnp(MAX(1,trnp_count_recv))) ! !-- This MPI_SENDRECV should work even with odd mixture on 32 and 64 Bit !-- variables in structure particle_type (due to the calculation of par_size) CALL MPI_SENDRECV( trsp, trsp_count*par_size, MPI_BYTE, & psouth, 1, rvnp, & trnp_count_recv*par_size, MPI_BYTE, pnorth, 1, & comm2d, status, ierr ) IF ( trnp_count_recv > 0 ) CALL Add_particles_to_gridcell(rvnp(1:trnp_count_recv)) DEALLOCATE(rvnp) ! !-- Send back boundary, receive front boundary CALL MPI_SENDRECV( trnp_count, 1, MPI_INTEGER, pnorth, 0, & trsp_count_recv, 1, MPI_INTEGER, psouth, 0, & comm2d, status, ierr ) ALLOCATE(rvsp(MAX(1,trsp_count_recv))) ! !-- This MPI_SENDRECV should work even with odd mixture on 32 and 64 Bit !-- variables in structure particle_type (due to the calculation of par_size) CALL MPI_SENDRECV( trnp, trnp_count*par_size, MPI_BYTE, & pnorth, 1, rvsp, & trsp_count_recv*par_size, MPI_BYTE, psouth, 1, & comm2d, status, ierr ) IF ( trsp_count_recv > 0 ) CALL Add_particles_to_gridcell(rvsp(1:trsp_count_recv)) DEALLOCATE(rvsp) number_of_particles = number_of_particles + trsp_count_recv DEALLOCATE( trsp, trnp ) ENDIF DEALLOCATE( move_also_north ) DEALLOCATE( move_also_south ) #else DO ip = nxl, nxr, nxr-nxl DO jp = nys, nyn DO kp = nzb+1, nzt number_of_particles = prt_count(kp,jp,ip) IF ( number_of_particles <= 0 ) CYCLE particles => grid_particles(kp,jp,ip)%particles(1:number_of_particles) DO n = 1, number_of_particles ! !-- Apply boundary conditions IF ( particles(n)%x < 0.0_wp ) THEN IF ( ibc_par_lr == 0 ) THEN ! !-- Cyclic boundary. Relevant coordinate has to be changed. particles(n)%x = ( nx + 1 ) * dx + particles(n)%x particles(n)%origin_x = ( nx + 1 ) * dx + & particles(n)%origin_x ELSEIF ( ibc_par_lr == 1 ) THEN ! !-- Particle absorption particles(n)%particle_mask = .FALSE. deleted_particles = deleted_particles + 1 ELSEIF ( ibc_par_lr == 2 ) THEN ! !-- Particle reflection particles(n)%x = -dx - particles(n)%x particles(n)%speed_x = -particles(n)%speed_x ENDIF ELSEIF ( particles(n)%x >= ( nx + 1) * dx ) THEN IF ( ibc_par_lr == 0 ) THEN ! !-- Cyclic boundary. Relevant coordinate has to be changed. particles(n)%x = particles(n)%x - ( nx + 1 ) * dx particles(n)%origin_x = particles(n)%origin_x - & ( nx + 1 ) * dx ELSEIF ( ibc_par_lr == 1 ) THEN ! !-- Particle absorption particles(n)%particle_mask = .FALSE. deleted_particles = deleted_particles + 1 ELSEIF ( ibc_par_lr == 2 ) THEN ! !-- Particle reflection particles(n)%x = ( nx + 1 ) * dx - particles(n)%x particles(n)%speed_x = -particles(n)%speed_x ENDIF ENDIF ENDDO ENDDO ENDDO ENDDO DO ip = nxl, nxr DO jp = nys, nyn, nyn-nys DO kp = nzb+1, nzt number_of_particles = prt_count(kp,jp,ip) IF ( number_of_particles <= 0 ) CYCLE particles => grid_particles(kp,jp,ip)%particles(1:number_of_particles) DO n = 1, number_of_particles IF ( particles(n)%y < 0.0_wp) THEN IF ( ibc_par_ns == 0 ) THEN ! !-- Cyclic boundary. Relevant coordinate has to be changed. particles(n)%y = ( ny + 1 ) * dy + particles(n)%y particles(n)%origin_y = ( ny + 1 ) * dy + & particles(n)%origin_y ELSEIF ( ibc_par_ns == 1 ) THEN ! !-- Particle absorption particles(n)%particle_mask = .FALSE. deleted_particles = deleted_particles + 1 ELSEIF ( ibc_par_ns == 2 ) THEN ! !-- Particle reflection particles(n)%y = -dy - particles(n)%y particles(n)%speed_y = -particles(n)%speed_y ENDIF ELSEIF ( particles(n)%y >= ( ny + 1) * dy ) THEN IF ( ibc_par_ns == 0 ) THEN ! !-- Cyclic boundary. Relevant coordinate has to be changed. particles(n)%y = particles(n)%y - ( ny + 1 ) * dy particles(n)%origin_y = particles(n)%origin_y - & ( ny + 1 ) * dy ELSEIF ( ibc_par_ns == 1 ) THEN ! !-- Particle absorption particles(n)%particle_mask = .FALSE. deleted_particles = deleted_particles + 1 ELSEIF ( ibc_par_ns == 2 ) THEN ! !-- Particle reflection particles(n)%y = ( ny + 1 ) * dy - particles(n)%y particles(n)%speed_y = -particles(n)%speed_y ENDIF ENDIF ENDDO ENDDO ENDDO ENDDO #endif ! !-- Accumulate the number of particles transferred between the subdomains #if defined( __parallel ) trlp_count_sum = trlp_count_sum + trlp_count trlp_count_recv_sum = trlp_count_recv_sum + trlp_count_recv trrp_count_sum = trrp_count_sum + trrp_count trrp_count_recv_sum = trrp_count_recv_sum + trrp_count_recv trsp_count_sum = trsp_count_sum + trsp_count trsp_count_recv_sum = trsp_count_recv_sum + trsp_count_recv trnp_count_sum = trnp_count_sum + trnp_count trnp_count_recv_sum = trnp_count_recv_sum + trnp_count_recv #endif CALL cpu_log( log_point_s(23), 'lpm_exchange_horiz', 'stop' ) END SUBROUTINE lpm_exchange_horiz !------------------------------------------------------------------------------! ! Description: ! ------------ !> If a particle moves from one processor to another, this subroutine moves !> the corresponding elements from the particle arrays of the old grid cells !> to the particle arrays of the new grid cells. !------------------------------------------------------------------------------! SUBROUTINE Add_particles_to_gridcell (particle_array) IMPLICIT NONE INTEGER(iwp) :: ip !< grid index (x) of particle INTEGER(iwp) :: jp !< grid index (x) of particle INTEGER(iwp) :: kp !< grid index (x) of particle INTEGER(iwp) :: n !< index variable of particle INTEGER(iwp) :: pindex !< dummy argument for new number of particles per grid box LOGICAL :: pack_done !< TYPE(particle_type), DIMENSION(:), INTENT(IN) :: particle_array !< new particles in a grid box TYPE(particle_type), DIMENSION(:), ALLOCATABLE :: temp_ns !< temporary particle array for reallocation pack_done = .FALSE. DO n = 1, SIZE(particle_array) IF ( .NOT. particle_array(n)%particle_mask ) CYCLE ip = particle_array(n)%x * ddx jp = particle_array(n)%y * ddy kp = particle_array(n)%z / dz(1) + 1 + offset_ocean_nzt ! !-- In case of grid stretching a particle might be above or below the !-- previously calculated particle grid box (indices). DO WHILE( zw(kp) < particle_array(n)%z ) kp = kp + 1 ENDDO DO WHILE( zw(kp-1) > particle_array(n)%z ) kp = kp - 1 ENDDO IF ( ip >= nxl .AND. ip <= nxr .AND. jp >= nys .AND. jp <= nyn & .AND. kp >= nzb+1 .AND. kp <= nzt) THEN ! particle stays on processor number_of_particles = prt_count(kp,jp,ip) particles => grid_particles(kp,jp,ip)%particles(1:number_of_particles) pindex = prt_count(kp,jp,ip)+1 IF( pindex > SIZE(grid_particles(kp,jp,ip)%particles) ) THEN IF ( pack_done ) THEN CALL realloc_particles_array (ip,jp,kp) ELSE CALL lpm_pack prt_count(kp,jp,ip) = number_of_particles pindex = prt_count(kp,jp,ip)+1 IF ( pindex > SIZE(grid_particles(kp,jp,ip)%particles) ) THEN CALL realloc_particles_array (ip,jp,kp) ENDIF pack_done = .TRUE. ENDIF ENDIF grid_particles(kp,jp,ip)%particles(pindex) = particle_array(n) prt_count(kp,jp,ip) = pindex ELSE IF ( jp <= nys - 1 ) THEN nr_move_south = nr_move_south+1 ! !-- Before particle information is swapped to exchange-array, check !-- if enough memory is allocated. If required, reallocate exchange !-- array. IF ( nr_move_south > SIZE(move_also_south) ) THEN ! !-- At first, allocate further temporary array to swap particle !-- information. ALLOCATE( temp_ns(SIZE(move_also_south)+NR_2_direction_move) ) temp_ns(1:nr_move_south-1) = move_also_south(1:nr_move_south-1) DEALLOCATE( move_also_south ) ALLOCATE( move_also_south(SIZE(temp_ns)) ) move_also_south(1:nr_move_south-1) = temp_ns(1:nr_move_south-1) DEALLOCATE( temp_ns ) ENDIF move_also_south(nr_move_south) = particle_array(n) IF ( jp == -1 ) THEN ! !-- Apply boundary condition along y IF ( ibc_par_ns == 0 ) THEN move_also_south(nr_move_south)%y = & move_also_south(nr_move_south)%y + ( ny + 1 ) * dy move_also_south(nr_move_south)%origin_y = & move_also_south(nr_move_south)%origin_y + ( ny + 1 ) * dy ELSEIF ( ibc_par_ns == 1 ) THEN ! !-- Particle absorption move_also_south(nr_move_south)%particle_mask = .FALSE. deleted_particles = deleted_particles + 1 ELSEIF ( ibc_par_ns == 2 ) THEN ! !-- Particle reflection move_also_south(nr_move_south)%y = & -move_also_south(nr_move_south)%y move_also_south(nr_move_south)%speed_y = & -move_also_south(nr_move_south)%speed_y ENDIF ENDIF ELSEIF ( jp >= nyn+1 ) THEN nr_move_north = nr_move_north+1 ! !-- Before particle information is swapped to exchange-array, check !-- if enough memory is allocated. If required, reallocate exchange !-- array. IF ( nr_move_north > SIZE(move_also_north) ) THEN ! !-- At first, allocate further temporary array to swap particle !-- information. ALLOCATE( temp_ns(SIZE(move_also_north)+NR_2_direction_move) ) temp_ns(1:nr_move_north-1) = move_also_south(1:nr_move_north-1) DEALLOCATE( move_also_north ) ALLOCATE( move_also_north(SIZE(temp_ns)) ) move_also_north(1:nr_move_north-1) = temp_ns(1:nr_move_north-1) DEALLOCATE( temp_ns ) ENDIF move_also_north(nr_move_north) = particle_array(n) IF ( jp == ny+1 ) THEN ! !-- Apply boundary condition along y IF ( ibc_par_ns == 0 ) THEN move_also_north(nr_move_north)%y = & move_also_north(nr_move_north)%y - ( ny + 1 ) * dy move_also_north(nr_move_north)%origin_y = & move_also_north(nr_move_north)%origin_y - ( ny + 1 ) * dy ELSEIF ( ibc_par_ns == 1 ) THEN ! !-- Particle absorption move_also_north(nr_move_north)%particle_mask = .FALSE. deleted_particles = deleted_particles + 1 ELSEIF ( ibc_par_ns == 2 ) THEN ! !-- Particle reflection move_also_north(nr_move_north)%y = & -move_also_north(nr_move_north)%y move_also_north(nr_move_north)%speed_y = & -move_also_north(nr_move_north)%speed_y ENDIF ENDIF ELSE WRITE(0,'(a,8i7)') 'particle out of range ',myid,ip,jp,kp,nxl,nxr,nys,nyn ENDIF ENDIF ENDDO RETURN END SUBROUTINE Add_particles_to_gridcell !------------------------------------------------------------------------------! ! Description: ! ------------ !> If a particle moves from one grid cell to another (on the current !> processor!), this subroutine moves the corresponding element from the !> particle array of the old grid cell to the particle array of the new grid !> cell. !------------------------------------------------------------------------------! SUBROUTINE lpm_move_particle IMPLICIT NONE INTEGER(iwp) :: i !< grid index (x) of particle position INTEGER(iwp) :: ip !< index variable along x INTEGER(iwp) :: j !< grid index (y) of particle position INTEGER(iwp) :: jp !< index variable along y INTEGER(iwp) :: k !< grid index (z) of particle position INTEGER(iwp) :: kp !< index variable along z INTEGER(iwp) :: n !< index variable for particle array INTEGER(iwp) :: np_before_move !< number of particles per grid box before moving INTEGER(iwp) :: pindex !< dummy argument for number of new particle per grid box TYPE(particle_type), DIMENSION(:), POINTER :: particles_before_move !< particles before moving CALL cpu_log( log_point_s(41), 'lpm_move_particle', 'start' ) CALL lpm_check_cfl DO ip = nxl, nxr DO jp = nys, nyn DO kp = nzb+1, nzt np_before_move = prt_count(kp,jp,ip) IF ( np_before_move <= 0 ) CYCLE particles_before_move => grid_particles(kp,jp,ip)%particles(1:np_before_move) DO n = 1, np_before_move i = particles_before_move(n)%x * ddx j = particles_before_move(n)%y * ddy k = kp ! !-- Find correct vertical particle grid box (necessary in case of grid stretching) !-- Due to the CFL limitations only the neighbouring grid boxes are considered. IF( zw(k) < particles_before_move(n)%z ) k = k + 1 IF( zw(k-1) > particles_before_move(n)%z ) k = k - 1 !-- For lpm_exchange_horiz to work properly particles need to be moved to the outermost gridboxes !-- of the respective processor. If the particle index is inside the processor the following lines !-- will not change the index i = MIN ( i , nxr ) i = MAX ( i , nxl ) j = MIN ( j , nyn ) j = MAX ( j , nys ) k = MIN ( k , nzt ) k = MAX ( k , nzb+1 ) ! !-- Check, if particle has moved to another grid cell. IF ( i /= ip .OR. j /= jp .OR. k /= kp ) THEN !! !-- If the particle stays on the same processor, the particle !-- will be added to the particle array of the new processor. number_of_particles = prt_count(k,j,i) particles => grid_particles(k,j,i)%particles(1:number_of_particles) pindex = prt_count(k,j,i)+1 IF ( pindex > SIZE(grid_particles(k,j,i)%particles) ) & THEN CALL realloc_particles_array(i,j,k) ENDIF grid_particles(k,j,i)%particles(pindex) = particles_before_move(n) prt_count(k,j,i) = pindex particles_before_move(n)%particle_mask = .FALSE. ENDIF ENDDO ENDDO ENDDO ENDDO CALL cpu_log( log_point_s(41), 'lpm_move_particle', 'stop' ) RETURN END SUBROUTINE lpm_move_particle !------------------------------------------------------------------------------! ! Description: ! ------------ !> Check CFL-criterion for each particle. If one particle violated the !> criterion the particle will be deleted and a warning message is given. !------------------------------------------------------------------------------! SUBROUTINE lpm_check_cfl IMPLICIT NONE INTEGER(iwp) :: i !< running index, x-direction INTEGER(iwp) :: j !< running index, y-direction INTEGER(iwp) :: k !< running index, z-direction INTEGER(iwp) :: n !< running index, number of particles DO i = nxl, nxr DO j = nys, nyn DO k = nzb+1, nzt number_of_particles = prt_count(k,j,i) IF ( number_of_particles <= 0 ) CYCLE particles => grid_particles(k,j,i)%particles(1:number_of_particles) DO n = 1, number_of_particles ! !-- Note, check for CFL does not work at first particle timestep !-- when both, age and age_m are zero. IF ( particles(n)%age - particles(n)%age_m > 0.0_wp ) THEN IF(ABS(particles(n)%speed_x) > & (dx/(particles(n)%age-particles(n)%age_m)) .OR. & ABS(particles(n)%speed_y) > & (dy/(particles(n)%age-particles(n)%age_m)) .OR. & ABS(particles(n)%speed_z) > & ((zw(k)-zw(k-1))/(particles(n)%age-particles(n)%age_m))) & THEN WRITE( message_string, * ) & 'Particle violated CFL-criterion: &particle with id ', & particles(n)%id, ' will be deleted!' CALL message( 'lpm_check_cfl', 'PA0475', 0, 1, -1, 6, 0 ) particles(n)%particle_mask= .FALSE. ENDIF ENDIF ENDDO ENDDO ENDDO ENDDO END SUBROUTINE lpm_check_cfl !------------------------------------------------------------------------------! ! Description: ! ------------ !> If the allocated memory for the particle array do not suffice to add arriving !> particles from neighbour grid cells, this subrouting reallocates the !> particle array to assure enough memory is available. !------------------------------------------------------------------------------! SUBROUTINE realloc_particles_array (i,j,k,size_in) IMPLICIT NONE INTEGER(iwp), INTENT(in) :: i !< INTEGER(iwp), INTENT(in) :: j !< INTEGER(iwp), INTENT(in) :: k !< INTEGER(iwp), INTENT(in), OPTIONAL :: size_in !< INTEGER(iwp) :: old_size !< INTEGER(iwp) :: new_size !< TYPE(particle_type), DIMENSION(:), ALLOCATABLE :: tmp_particles_d !< TYPE(particle_type), DIMENSION(500) :: tmp_particles_s !< old_size = SIZE(grid_particles(k,j,i)%particles) IF ( PRESENT(size_in) ) THEN new_size = size_in ELSE new_size = old_size * ( 1.0_wp + alloc_factor / 100.0_wp ) ENDIF new_size = MAX( new_size, min_nr_particle, old_size + 1 ) IF ( old_size <= 500 ) THEN tmp_particles_s(1:old_size) = grid_particles(k,j,i)%particles(1:old_size) DEALLOCATE(grid_particles(k,j,i)%particles) ALLOCATE(grid_particles(k,j,i)%particles(new_size)) grid_particles(k,j,i)%particles(1:old_size) = tmp_particles_s(1:old_size) grid_particles(k,j,i)%particles(old_size+1:new_size) = zero_particle ELSE ALLOCATE(tmp_particles_d(new_size)) tmp_particles_d(1:old_size) = grid_particles(k,j,i)%particles DEALLOCATE(grid_particles(k,j,i)%particles) ALLOCATE(grid_particles(k,j,i)%particles(new_size)) grid_particles(k,j,i)%particles(1:old_size) = tmp_particles_d(1:old_size) grid_particles(k,j,i)%particles(old_size+1:new_size) = zero_particle DEALLOCATE(tmp_particles_d) ENDIF particles => grid_particles(k,j,i)%particles(1:number_of_particles) RETURN END SUBROUTINE realloc_particles_array SUBROUTINE dealloc_particles_array IMPLICIT NONE INTEGER(iwp) :: i INTEGER(iwp) :: j INTEGER(iwp) :: k INTEGER(iwp) :: old_size !< INTEGER(iwp) :: new_size !< LOGICAL :: dealloc TYPE(particle_type), DIMENSION(:), ALLOCATABLE :: tmp_particles_d !< TYPE(particle_type), DIMENSION(500) :: tmp_particles_s !< DO i = nxl, nxr DO j = nys, nyn DO k = nzb+1, nzt ! !-- Determine number of active particles number_of_particles = prt_count(k,j,i) ! !-- Determine allocated memory size old_size = SIZE( grid_particles(k,j,i)%particles ) ! !-- Check for large unused memory dealloc = ( ( number_of_particles < min_nr_particle .AND. & old_size > min_nr_particle ) .OR. & ( number_of_particles > min_nr_particle .AND. & old_size - number_of_particles * & ( 1.0_wp + 0.01_wp * alloc_factor ) > 0.0_wp ) ) IF ( dealloc ) THEN IF ( number_of_particles < min_nr_particle ) THEN new_size = min_nr_particle ELSE new_size = INT( number_of_particles * ( 1.0_wp + 0.01_wp * alloc_factor ) ) ENDIF IF ( number_of_particles <= 500 ) THEN tmp_particles_s(1:number_of_particles) = grid_particles(k,j,i)%particles(1:number_of_particles) DEALLOCATE(grid_particles(k,j,i)%particles) ALLOCATE(grid_particles(k,j,i)%particles(new_size)) grid_particles(k,j,i)%particles(1:number_of_particles) = tmp_particles_s(1:number_of_particles) grid_particles(k,j,i)%particles(number_of_particles+1:new_size) = zero_particle ELSE ALLOCATE(tmp_particles_d(number_of_particles)) tmp_particles_d(1:number_of_particles) = grid_particles(k,j,i)%particles(1:number_of_particles) DEALLOCATE(grid_particles(k,j,i)%particles) ALLOCATE(grid_particles(k,j,i)%particles(new_size)) grid_particles(k,j,i)%particles(1:number_of_particles) = tmp_particles_d(1:number_of_particles) grid_particles(k,j,i)%particles(number_of_particles+1:new_size) = zero_particle DEALLOCATE(tmp_particles_d) ENDIF ENDIF ENDDO ENDDO ENDDO END SUBROUTINE dealloc_particles_array END MODULE lpm_exchange_horiz_mod