| 1 | ! !> @file palm.f90 |
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| 2 | !--------------------------------------------------------------------------------------------------! |
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| 3 | ! This file is part of the PALM model system. |
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| 4 | ! |
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| 5 | ! PALM is free software: you can redistribute it and/or modify it under the terms of the GNU General |
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| 6 | ! Public License as published by the Free Software Foundation, either version 3 of the License, or |
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| 7 | ! (at your option) any later version. |
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| 8 | ! |
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| 9 | ! PALM is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the |
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| 10 | ! implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
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| 11 | ! Public License for more details. |
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| 12 | ! |
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| 13 | ! You should have received a copy of the GNU General Public License along with PALM. If not, see |
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| 14 | ! <http://www.gnu.org/licenses/>. |
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| 15 | ! |
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| 16 | ! Copyright 1997-2021 Leibniz Universitaet Hannover |
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| 17 | !--------------------------------------------------------------------------------------------------! |
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| 18 | ! |
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| 19 | ! Current revisions: |
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| 20 | ! ----------------- |
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| 21 | ! |
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| 22 | ! |
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| 23 | ! Former revisions: |
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| 24 | ! ----------------- |
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| 25 | ! $Id: palm.f90 4828 2021-01-05 11:21:41Z Giersch $ |
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| 26 | ! file re-formatted to follow the PALM coding standard |
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| 27 | ! |
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| 28 | ! 4539 2020-05-18 14:05:17Z raasch |
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| 29 | ! log point name changed |
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| 30 | ! |
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| 31 | ! 4535 2020-05-15 12:07:23Z raasch |
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| 32 | ! bugfix for restart data format query |
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| 33 | ! |
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| 34 | ! 4496 2020-04-15 08:37:26Z raasch |
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| 35 | ! bugfix: coupling character added to restart output filename |
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| 36 | ! |
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| 37 | ! 4495 2020-04-13 20:11:20Z raasch |
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| 38 | ! restart data handling with MPI-IO added |
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| 39 | ! |
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| 40 | ! 4457 2020-03-11 14:20:43Z raasch |
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| 41 | ! use statement for exchange horiz added |
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| 42 | ! |
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| 43 | ! 4444 2020-03-05 15:59:50Z raasch |
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| 44 | ! bugfix: cpp-directives for serial mode added |
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| 45 | ! |
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| 46 | ! 4414 2020-02-19 20:16:04Z suehring |
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| 47 | ! Call to module_interface_init_numerics |
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| 48 | ! |
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| 49 | ! 4400 2020-02-10 20:32:41Z suehring |
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| 50 | ! Add interface to initialize data output with dom |
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| 51 | ! |
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| 52 | ! 4360 2020-01-07 11:25:50Z suehring |
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| 53 | ! implement new palm_date_time_mod |
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| 54 | ! |
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| 55 | ! 4094 2019-07-12 09:24:21Z gronemeier |
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| 56 | ! Corrected "Former revisions" section |
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| 57 | ! |
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| 58 | ! 4039 2019-06-18 10:32:41Z suehring |
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| 59 | ! Rename subroutines in module for diagnostic quantities |
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| 60 | ! |
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| 61 | ! 4017 2019-06-06 12:16:46Z schwenkel |
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| 62 | ! new module for calculation and output of diagnostic quantities added |
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| 63 | ! |
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| 64 | ! 3885 2019-04-11 11:29:34Z kanani |
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| 65 | ! Changes related to global restructuring of location messages and introduction |
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| 66 | ! of additional debug messages |
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| 67 | ! |
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| 68 | ! 3761 2019-02-25 15:31:42Z raasch |
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| 69 | ! unused variable removed |
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| 70 | ! |
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| 71 | ! 3719 2019-02-06 13:10:18Z kanani |
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| 72 | ! Included cpu measurement for wall/soil spinup |
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| 73 | ! |
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| 74 | ! 3703 2019-01-29 16:43:53Z knoop |
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| 75 | ! Some interface calls moved to module_interface + cleanup |
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| 76 | ! |
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| 77 | ! 3648 2019-01-02 16:35:46Z suehring |
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| 78 | ! Rename subroutines for surface-data output |
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| 79 | ! |
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| 80 | ! Revision 1.1 1997/07/24 11:23:35 raasch |
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| 81 | ! Initial revision |
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| 82 | ! |
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| 83 | ! |
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| 84 | ! Description: |
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| 85 | ! ------------ |
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| 86 | !> Large-Eddy Simulation (LES) model for atmospheric and oceanic boundary-layer flows, |
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| 87 | !> see the PALM homepage https://palm-model.org for further information |
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| 88 | !--------------------------------------------------------------------------------------------------! |
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| 89 | PROGRAM palm |
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| 90 | |
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| 91 | |
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| 92 | USE arrays_3d |
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| 93 | |
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| 94 | #if defined( __parallel ) |
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| 95 | USE bulk_cloud_model_mod, & |
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| 96 | ONLY: bulk_cloud_model, microphysics_morrison, microphysics_seifert |
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| 97 | #endif |
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| 98 | |
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| 99 | USE control_parameters, & |
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| 100 | ONLY: coupling_char, do2d_at_begin, do3d_at_begin, io_blocks, io_group, message_string, & |
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| 101 | restart_data_format_output, runnr, simulated_time_chr, spinup, & |
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| 102 | time_since_reference_point, user_interface_current_revision, & |
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| 103 | user_interface_required_revision, version, write_binary |
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| 104 | |
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| 105 | #if defined( __parallel ) |
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| 106 | USE control_parameters, & |
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| 107 | ONLY: child_domain, constant_diffusion, humidity, initializing_actions, neutral, & |
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| 108 | passive_scalar |
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| 109 | #endif |
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| 110 | |
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| 111 | USE cpulog, & |
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| 112 | ONLY: cpu_log, cpu_statistics, log_point |
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| 113 | |
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| 114 | #if defined( __parallel ) |
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| 115 | USE cpulog, & |
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| 116 | ONLY: log_point_s |
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| 117 | #endif |
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| 118 | |
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| 119 | USE diagnostic_output_quantities_mod, & |
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| 120 | ONLY: doq_calculate |
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| 121 | |
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| 122 | #if defined( __parallel ) |
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| 123 | USE exchange_horiz_mod, & |
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| 124 | ONLY: exchange_horiz |
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| 125 | |
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| 126 | USE indices, & |
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| 127 | ONLY: nbgp |
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| 128 | #endif |
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| 129 | |
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| 130 | USE kinds |
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| 131 | |
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| 132 | USE module_interface, & |
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| 133 | ONLY: module_interface_init_numerics, & |
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| 134 | module_interface_init_output, & |
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| 135 | module_interface_last_actions |
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| 136 | |
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| 137 | |
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| 138 | USE multi_agent_system_mod, & |
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| 139 | ONLY: agents_active, mas_last_actions |
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| 140 | |
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| 141 | USE netcdf_data_input_mod, & |
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| 142 | ONLY: netcdf_data_input_inquire_file, netcdf_data_input_init, & |
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| 143 | netcdf_data_input_surface_data, netcdf_data_input_topo |
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| 144 | |
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| 145 | USE pegrid |
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| 146 | |
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| 147 | #if defined( __parallel ) |
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| 148 | USE pmc_particle_interface, & |
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| 149 | ONLY: pmcp_g_alloc_win |
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| 150 | |
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| 151 | USE pmc_interface, & |
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| 152 | ONLY: nested_run, pmci_child_initialize, pmci_init, pmci_modelconfiguration, & |
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| 153 | pmci_parent_initialize |
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| 154 | #endif |
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| 155 | |
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| 156 | USE restart_data_mpi_io_mod, & |
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| 157 | ONLY: rd_mpi_io_close, rd_mpi_io_open |
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| 158 | |
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| 159 | USE surface_data_output_mod, & |
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| 160 | ONLY: surface_data_output_last_action |
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| 161 | |
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| 162 | USE write_restart_data_mod, & |
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| 163 | ONLY: wrd_global, wrd_local |
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| 164 | |
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| 165 | #if defined( __parallel ) && defined( _OPENACC ) |
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| 166 | USE openacc |
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| 167 | #endif |
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| 168 | |
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| 169 | |
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| 170 | IMPLICIT NONE |
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| 171 | |
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| 172 | ! |
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| 173 | !-- Local variables |
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| 174 | CHARACTER(LEN=9) :: time_to_string !< |
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| 175 | |
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| 176 | INTEGER(iwp) :: i !< loop counter for blocked I/O |
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| 177 | #if defined( __parallel) && defined( _OPENACC ) |
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| 178 | INTEGER(acc_device_kind) :: device_type !< device type for OpenACC |
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| 179 | INTEGER(iwp) :: local_comm !< local communicator (shared memory) |
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| 180 | INTEGER(iwp) :: local_num_procs !< local number of processes |
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| 181 | INTEGER(iwp) :: local_id !< local id |
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| 182 | INTEGER(iwp) :: num_devices !< number of devices visible to OpenACC |
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| 183 | INTEGER(iwp) :: my_device !< device used by this process |
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| 184 | #endif |
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| 185 | |
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| 186 | version = 'PALM 6.0' |
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| 187 | user_interface_required_revision = 'r4495' |
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| 188 | |
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| 189 | #if defined( __parallel ) |
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| 190 | ! |
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| 191 | !-- MPI initialisation. comm2d is preliminary set, because it will be defined in init_pegrid but is |
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| 192 | !-- used before in cpu_log. |
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| 193 | CALL MPI_INIT( ierr ) |
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| 194 | |
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| 195 | ! |
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| 196 | !-- Initialize the coupling for nested-domain runs comm_palm is the communicator which includes all |
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| 197 | !-- PEs (MPI processes) available for this (nested) model. If it is not a nested run, comm_palm is |
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| 198 | !-- returned as MPI_COMM_WORLD. |
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| 199 | CALL cpu_log( log_point_s(70), 'pmci_init', 'start' ) |
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| 200 | CALL pmci_init( comm_palm ) |
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| 201 | CALL cpu_log( log_point_s(70), 'pmci_init', 'stop' ) |
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| 202 | comm2d = comm_palm |
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| 203 | ! |
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| 204 | !-- Get the (preliminary) number of MPI processes and the local PE-id (in case of a further |
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| 205 | !-- communicator splitting in init_coupling, these numbers will be changed in init_pegrid). |
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| 206 | IF ( nested_run ) THEN |
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| 207 | |
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| 208 | CALL MPI_COMM_SIZE( comm_palm, numprocs, ierr ) |
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| 209 | CALL MPI_COMM_RANK( comm_palm, myid, ierr ) |
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| 210 | |
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| 211 | ELSE |
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| 212 | |
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| 213 | CALL MPI_COMM_SIZE( MPI_COMM_WORLD, numprocs, ierr ) |
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| 214 | CALL MPI_COMM_RANK( MPI_COMM_WORLD, myid, ierr ) |
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| 215 | ! |
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| 216 | !-- Initialize PE topology in case of coupled atmosphere-ocean runs (comm_palm will be splitted |
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| 217 | !-- in init_coupling) |
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| 218 | CALL init_coupling |
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| 219 | ENDIF |
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| 220 | |
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| 221 | #ifdef _OPENACC |
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| 222 | ! |
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| 223 | !-- Select OpenACC device to use in this process. For this find out how many neighbors there are |
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| 224 | !-- running on the same node and which id this process is. |
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| 225 | IF ( nested_run ) THEN |
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| 226 | CALL MPI_COMM_SPLIT_TYPE( comm_palm, MPI_COMM_TYPE_SHARED, 0, MPI_INFO_NULL, local_comm, & |
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| 227 | ierr ) |
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| 228 | ELSE |
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| 229 | CALL MPI_COMM_SPLIT_TYPE( MPI_COMM_WORLD, MPI_COMM_TYPE_SHARED, 0, MPI_INFO_NULL, & |
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| 230 | local_comm, ierr ) |
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| 231 | ENDIF |
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| 232 | CALL MPI_COMM_SIZE( local_comm, local_num_procs, ierr ) |
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| 233 | CALL MPI_COMM_RANK( local_comm, local_id, ierr ) |
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| 234 | |
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| 235 | ! |
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| 236 | !-- This loop including the barrier is a workaround for PGI compiler versions up to and including |
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| 237 | !-- 18.4. Later releases are able to select their GPUs in parallel, without running into spurious |
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| 238 | !-- errors. |
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| 239 | DO i = 0, local_num_procs-1 |
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| 240 | CALL MPI_BARRIER( local_comm, ierr ) |
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| 241 | |
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| 242 | IF ( i == local_id ) THEN |
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| 243 | device_type = acc_get_device_type() |
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| 244 | num_devices = acc_get_num_devices( device_type ) |
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| 245 | my_device = MOD( local_id, num_devices ) |
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| 246 | CALL acc_set_device_num( my_device, device_type ) |
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| 247 | ENDIF |
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| 248 | ENDDO |
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| 249 | |
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| 250 | CALL MPI_COMM_FREE( local_comm, ierr ) |
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| 251 | #endif |
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| 252 | #endif |
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| 253 | |
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| 254 | ! |
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| 255 | !-- Initialize measuring of the CPU-time remaining to the run |
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| 256 | CALL local_tremain_ini |
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| 257 | |
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| 258 | ! |
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| 259 | !-- Start of total CPU time measuring. |
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| 260 | CALL cpu_log( log_point(1), 'total', 'start' ) |
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| 261 | CALL cpu_log( log_point(2), 'initialisation', 'start' ) |
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| 262 | |
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| 263 | ! |
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| 264 | !-- Open a file for debug output |
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| 265 | WRITE (myid_char,'(''_'',I6.6)') myid |
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| 266 | OPEN( 9, FILE='DEBUG'//TRIM( coupling_char )//myid_char, FORM='FORMATTED' ) |
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| 267 | |
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| 268 | ! |
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| 269 | !-- Initialize dvrp logging. Also, one PE maybe split from the global communicator for doing the |
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| 270 | !-- dvrp output. In that case, the number of PEs available for PALM is reduced by one and |
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| 271 | !-- communicator comm_palm is changed respectively. |
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| 272 | #if defined( __parallel ) |
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| 273 | CALL MPI_COMM_RANK( comm_palm, myid, ierr ) |
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| 274 | #endif |
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| 275 | |
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| 276 | ! |
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| 277 | !-- Read control parameters from NAMELIST files and read environment-variables |
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| 278 | CALL parin |
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| 279 | |
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| 280 | ! |
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| 281 | !-- Check for the user's interface version |
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| 282 | IF ( user_interface_current_revision /= user_interface_required_revision ) THEN |
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| 283 | message_string = 'current user-interface revision "' // & |
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| 284 | TRIM( user_interface_current_revision ) // '" does ' // & |
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| 285 | 'not match the required revision ' // & |
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| 286 | TRIM( user_interface_required_revision ) |
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| 287 | CALL message( 'palm', 'PA0169', 1, 2, 0, 6, 0 ) |
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| 288 | ENDIF |
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| 289 | |
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| 290 | ! |
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| 291 | !-- Determine processor topology and local array indices |
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| 292 | CALL init_pegrid |
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| 293 | ! |
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| 294 | !-- Check if input file according to input-data standard exists |
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| 295 | CALL netcdf_data_input_inquire_file |
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| 296 | ! |
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| 297 | !-- Read topography input data if required. This is required before the numerical grid is finally |
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| 298 | !-- created in init_grid. |
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| 299 | CALL netcdf_data_input_topo |
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| 300 | ! |
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| 301 | !-- Generate grid parameters, initialize generic topography and further process topography |
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| 302 | !-- information if required. |
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| 303 | CALL init_grid |
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| 304 | ! |
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| 305 | !-- Initialize boundary conditions and numerics such as the multigrid solver or the advection |
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| 306 | !-- routine |
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| 307 | CALL module_interface_init_numerics |
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| 308 | ! |
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| 309 | !-- Read global attributes if available. |
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| 310 | CALL netcdf_data_input_init |
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| 311 | ! |
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| 312 | !-- Read surface classification data, e.g. vegetation and soil types, water surfaces, etc., if |
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| 313 | !-- available. Some of these data is required before check parameters is invoked. |
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| 314 | CALL netcdf_data_input_surface_data |
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| 315 | ! |
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| 316 | !-- Check control parameters and deduce further quantities |
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| 317 | CALL check_parameters |
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| 318 | |
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| 319 | CALL init_3d_model |
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| 320 | |
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| 321 | CALL module_interface_init_output |
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| 322 | |
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| 323 | #if defined( __parallel ) |
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| 324 | ! |
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| 325 | !-- Coupling protocol setup for nested-domain runs |
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| 326 | IF ( nested_run ) THEN |
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| 327 | CALL pmci_modelconfiguration |
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| 328 | ! |
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| 329 | !-- Receive and interpolate initial data on children. |
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| 330 | !-- Child initialization must be made first if the model is both child and parent if necessary. |
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| 331 | IF ( TRIM( initializing_actions ) /= 'read_restart_data' ) THEN |
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| 332 | CALL pmci_child_initialize |
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| 333 | ! |
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| 334 | !-- Send initial condition data from parent to children |
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| 335 | CALL pmci_parent_initialize |
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| 336 | ! |
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| 337 | !-- Exchange_horiz is needed after the nest initialization |
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| 338 | IF ( child_domain ) THEN |
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| 339 | CALL exchange_horiz( u, nbgp ) |
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| 340 | CALL exchange_horiz( v, nbgp ) |
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| 341 | CALL exchange_horiz( w, nbgp ) |
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| 342 | IF ( .NOT. neutral ) THEN |
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| 343 | CALL exchange_horiz( pt, nbgp ) |
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| 344 | ENDIF |
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| 345 | IF ( .NOT. constant_diffusion ) CALL exchange_horiz( e, nbgp ) |
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| 346 | IF ( humidity ) THEN |
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| 347 | CALL exchange_horiz( q, nbgp ) |
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| 348 | IF ( bulk_cloud_model .AND. microphysics_morrison ) THEN |
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| 349 | CALL exchange_horiz( qc, nbgp ) |
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| 350 | CALL exchange_horiz( nc, nbgp ) |
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| 351 | ENDIF |
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| 352 | IF ( bulk_cloud_model .AND. microphysics_seifert ) THEN |
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| 353 | CALL exchange_horiz( qr, nbgp ) |
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| 354 | CALL exchange_horiz( nr, nbgp ) |
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| 355 | ENDIF |
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| 356 | ENDIF |
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| 357 | IF ( passive_scalar ) CALL exchange_horiz( s, nbgp ) |
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| 358 | ENDIF |
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| 359 | ENDIF |
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| 360 | |
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| 361 | CALL pmcp_g_alloc_win ! Must be called after pmci_child_initialize and pmci_parent_initialize |
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| 362 | ENDIF |
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| 363 | #endif |
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| 364 | |
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| 365 | ! |
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| 366 | !-- Output of program header |
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| 367 | IF ( myid == 0 ) CALL header |
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| 368 | |
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| 369 | CALL cpu_log( log_point(2), 'initialisation', 'stop' ) |
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| 370 | |
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| 371 | ! |
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| 372 | !-- Integration of the non-atmospheric equations (land surface model, urban surface model) |
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| 373 | IF ( spinup ) THEN |
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| 374 | CALL cpu_log( log_point(41), 'wall/soil spinup', 'start' ) |
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| 375 | CALL time_integration_spinup |
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| 376 | CALL cpu_log( log_point(41), 'wall/soil spinup', 'stop' ) |
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| 377 | ENDIF |
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| 378 | |
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| 379 | ! |
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| 380 | !-- Set start time in format hh:mm:ss |
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| 381 | simulated_time_chr = time_to_string( time_since_reference_point ) |
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| 382 | |
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| 383 | ! |
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| 384 | !-- If required, output of initial arrays |
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| 385 | IF ( do2d_at_begin ) THEN |
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| 386 | CALL doq_calculate !TODO, will be called twice |
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| 387 | |
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| 388 | CALL data_output_2d( 'xy', 0 ) |
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| 389 | CALL data_output_2d( 'xz', 0 ) |
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| 390 | CALL data_output_2d( 'yz', 0 ) |
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| 391 | ENDIF |
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| 392 | |
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| 393 | IF ( do3d_at_begin ) THEN |
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| 394 | CALL doq_calculate !TODO, will be called twice |
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| 395 | |
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| 396 | CALL data_output_3d( 0 ) |
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| 397 | ENDIF |
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| 398 | |
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| 399 | ! |
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| 400 | !-- Integration of the model equations using timestep-scheme |
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| 401 | CALL time_integration |
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| 402 | |
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| 403 | ! |
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| 404 | !-- If required, write binary data for restart runs |
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| 405 | IF ( write_binary ) THEN |
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| 406 | |
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| 407 | CALL cpu_log( log_point(22), 'write-restart-data', 'start' ) |
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| 408 | |
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| 409 | CALL location_message( 'writing restart data', 'start' ) |
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| 410 | |
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| 411 | IF ( TRIM( restart_data_format_output ) == 'fortran_binary' ) THEN |
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| 412 | |
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| 413 | DO i = 0, io_blocks-1 |
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| 414 | IF ( i == io_group ) THEN |
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| 415 | |
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| 416 | ! |
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| 417 | !-- Open binary file |
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| 418 | CALL check_open( 14 ) |
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| 419 | ! |
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| 420 | !-- Write control parameters and other global variables for restart. |
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| 421 | IF ( myid == 0 ) CALL wrd_global |
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| 422 | ! |
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| 423 | !-- Write processor specific flow field data for restart runs |
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| 424 | CALL wrd_local |
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| 425 | ! |
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| 426 | !-- Close binary file |
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| 427 | CALL close_file( 14 ) |
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| 428 | |
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| 429 | ENDIF |
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| 430 | #if defined( __parallel ) |
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| 431 | CALL MPI_BARRIER( comm2d, ierr ) |
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| 432 | #endif |
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| 433 | ENDDO |
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| 434 | |
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| 435 | ELSEIF ( restart_data_format_output(1:3) == 'mpi' ) THEN |
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| 436 | ! |
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| 437 | !-- Open MPI-IO restart file |
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| 438 | CALL rd_mpi_io_open( 'write', 'BINOUT' // TRIM( coupling_char ) ) |
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| 439 | ! |
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| 440 | !-- Write control parameters and other global variables for restart. |
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| 441 | CALL wrd_global |
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| 442 | ! |
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| 443 | !-- Write processor specific flow field data for restart runs |
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| 444 | CALL wrd_local |
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| 445 | ! |
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| 446 | !-- Close restart File |
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| 447 | CALL rd_mpi_io_close |
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| 448 | |
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| 449 | ENDIF |
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| 450 | |
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| 451 | CALL location_message( 'writing restart data', 'finished' ) |
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| 452 | |
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| 453 | CALL cpu_log( log_point(22), 'write-restart-data', 'stop' ) |
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| 454 | |
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| 455 | ENDIF |
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| 456 | ! |
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| 457 | !-- Last actions for surface output, for instantaneous and time-averaged data |
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| 458 | CALL surface_data_output_last_action( 0 ) |
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| 459 | CALL surface_data_output_last_action( 1 ) |
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| 460 | |
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| 461 | ! |
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| 462 | !-- If required, repeat output of header including the required CPU-time |
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| 463 | IF ( myid == 0 ) CALL header |
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| 464 | ! |
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| 465 | !-- Perform module specific last actions |
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| 466 | CALL cpu_log( log_point(4), 'last actions', 'start' ) |
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| 467 | |
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| 468 | IF ( myid == 0 .AND. agents_active ) CALL mas_last_actions ! ToDo: move to module_interface |
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| 469 | |
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| 470 | CALL module_interface_last_actions |
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| 471 | |
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| 472 | CALL cpu_log( log_point(4), 'last actions', 'stop' ) |
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| 473 | |
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| 474 | ! |
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| 475 | !-- Close files |
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| 476 | CALL close_file( 0 ) |
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| 477 | |
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| 478 | ! |
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| 479 | !-- Write run number to file (used by palmrun to create unified cycle numbers for output files). |
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| 480 | IF ( myid == 0 .AND. runnr > 0 ) THEN |
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| 481 | OPEN( 90, FILE='RUN_NUMBER', FORM='FORMATTED' ) |
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| 482 | WRITE( 90, '(I4)' ) runnr |
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| 483 | CLOSE( 90 ) |
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| 484 | ENDIF |
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| 485 | |
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| 486 | ! |
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| 487 | !-- Take final CPU-time for CPU-time analysis |
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| 488 | CALL cpu_log( log_point(1), 'total', 'stop' ) |
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| 489 | CALL cpu_statistics |
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| 490 | |
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| 491 | #if defined( __parallel ) |
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| 492 | CALL MPI_FINALIZE( ierr ) |
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| 493 | #endif |
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| 494 | |
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| 495 | END PROGRAM palm |
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