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 moh.hefny $ |
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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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