1 | !> @file init_pegrid.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 | ! Current revisions: |
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17 | ! ------------------ |
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18 | ! |
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19 | ! |
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20 | ! Former revisions: |
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21 | ! ----------------- |
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22 | ! $Id: init_pegrid.f90 4893 2021-03-02 16:39:14Z banzhafs $ |
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23 | ! replaced use_syn_turb_gen by syn_turb_gen |
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24 | ! |
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25 | ! 4648 2020-08-25 07:52:08Z raasch |
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26 | ! file re-formatted to follow the PALM coding standard |
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27 | ! |
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28 | ! 4564 2020-06-12 14:03:36Z raasch |
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29 | ! Vertical nesting method of Huq et al. (2019) removed |
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30 | ! |
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31 | ! 4461 2020-03-12 16:51:59Z raasch |
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32 | ! communicator configurations for four virtual pe grids defined |
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33 | ! |
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34 | ! 4444 2020-03-05 15:59:50Z raasch |
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35 | ! bugfix: cpp-directives for serial mode added |
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36 | ! |
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37 | ! 4360 2020-01-07 11:25:50Z suehring |
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38 | ! changed message PA0467 |
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39 | ! |
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40 | ! 4264 2019-10-15 16:00:23Z scharf |
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41 | ! corrected error message string |
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42 | ! |
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43 | ! 4241 2019-09-27 06:32:47Z raasch |
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44 | ! Check added to ensure that subdomain grid has at least the size as given by the number of ghost |
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45 | ! points |
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46 | ! |
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47 | ! 4182 2019-08-22 15:20:23Z scharf |
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48 | ! Corrected "Former revisions" section |
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49 | ! |
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50 | ! 4045 2019-06-21 10:58:47Z raasch |
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51 | ! bugfix: kind attribute added to nint function to allow for large integers which may appear in case |
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52 | ! of default recycling width and small grid spacings |
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53 | ! |
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54 | ! 3999 2019-05-23 16:09:37Z suehring |
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55 | ! Spend 3 ghost points also in case of pw-scheme when nesting is applied |
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56 | ! |
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57 | ! 3897 2019-04-15 11:51:14Z suehring |
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58 | ! Minor revision of multigrid check; give warning instead of an abort. |
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59 | ! |
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60 | ! 3890 2019-04-12 15:59:20Z suehring |
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61 | ! Check if grid coarsening is possible on subdomain, in order to avoid that multigrid approach |
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62 | ! effectively reduces to a Gauss-Seidel scheme. |
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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 of additional debug |
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66 | ! messages |
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67 | ! |
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68 | ! 3884 2019-04-10 13:31:55Z Giersch |
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69 | ! id_recycling is only calculated in case of tubulent inflow |
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70 | ! |
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71 | ! 3761 2019-02-25 15:31:42Z raasch |
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72 | ! unused variable removed |
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73 | ! |
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74 | ! 3655 2019-01-07 16:51:22Z knoop |
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75 | ! variables documented |
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76 | ! |
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77 | ! Revision 1.1 1997/07/24 11:15:09 raasch |
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78 | ! Initial revision |
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79 | ! |
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80 | ! |
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81 | ! Description: |
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82 | ! ------------ |
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83 | !> Determination of the virtual processor topology (if not prescribed by the user) and computation |
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84 | !> of the grid point number and array bounds of the local domains. |
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85 | !> @todo: remove MPI-data types for 2D exchange on coarse multigrid level (not used any more) |
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86 | !--------------------------------------------------------------------------------------------------! |
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87 | SUBROUTINE init_pegrid |
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88 | |
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89 | |
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90 | USE control_parameters, & |
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91 | ONLY: bc_dirichlet_l, bc_dirichlet_n, bc_dirichlet_r, bc_dirichlet_s, bc_lr, bc_ns, & |
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92 | bc_radiation_l, bc_radiation_n, bc_radiation_r, bc_radiation_s, grid_level, & |
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93 | grid_level_count, maximum_grid_level, message_string, mg_switch_to_pe0_level, psolver |
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94 | |
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95 | |
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96 | #if defined( __parallel ) |
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97 | USE control_parameters, & |
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98 | ONLY: coupling_mode, coupling_topology, gathered_size, momentum_advec, & |
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99 | outflow_source_plane, recycling_width, scalar_advec, subdomain_size, & |
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100 | syn_turb_gen, turbulent_inflow, turbulent_outflow, y_shift |
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101 | |
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102 | USE grid_variables, & |
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103 | ONLY: dx |
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104 | #endif |
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105 | |
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106 | USE indices, & |
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107 | ONLY: nnx, nny, nnz, nx, nxl, nxl_mg, nxlu, nxr, nxr_mg, ny, nyn, nyn_mg, nys, nys_mg, & |
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108 | nysv, nz, nzb, nzt, nzt_mg, wall_flags_1, wall_flags_2, wall_flags_3, wall_flags_4, & |
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109 | wall_flags_5, wall_flags_6, wall_flags_7, wall_flags_8, wall_flags_9, wall_flags_10 |
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110 | |
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111 | #if defined( __parallel ) |
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112 | USE indices, & |
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113 | ONLY: mg_loc_ind, nbgp, nx_a, nx_o, ny_a, ny_o |
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114 | #endif |
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115 | |
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116 | USE kinds |
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117 | |
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118 | USE pegrid |
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119 | |
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120 | #if defined( __parallel ) |
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121 | USE pmc_interface, & |
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122 | ONLY: nested_run |
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123 | |
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124 | USE spectra_mod, & |
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125 | ONLY: calculate_spectra |
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126 | |
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127 | USE synthetic_turbulence_generator_mod, & |
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128 | ONLY: id_stg_left, id_stg_north, id_stg_right, id_stg_south |
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129 | #endif |
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130 | |
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131 | USE transpose_indices, & |
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132 | ONLY: nxl_y, nxl_z, nxr_y, nxr_z, nyn_x, nyn_z, nys_x, nys_z, nzb_x, nzb_y, nzt_x, nzt_y |
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133 | |
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134 | #if defined( __parallel ) |
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135 | USE transpose_indices, & |
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136 | ONLY: nxl_yd, nxr_yd, nzb_yd, nzt_yd |
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137 | #endif |
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138 | |
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139 | IMPLICIT NONE |
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140 | |
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141 | INTEGER(iwp) :: i !< running index over number of processors or number of multigrid level |
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142 | #if defined( __parallel ) |
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143 | INTEGER(iwp) :: id_inflow_l !< ID indicating processors located at the left inflow boundary |
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144 | INTEGER(iwp) :: id_outflow_l !< local value of id_outflow |
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145 | INTEGER(iwp) :: id_outflow_source_l !< local value of id_outflow_source |
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146 | INTEGER(iwp) :: id_recycling_l !< ID indicating processors located at the recycling plane |
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147 | INTEGER(iwp) :: id_stg_left_l !< left lateral boundary local core id in case of turbulence generator |
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148 | INTEGER(iwp) :: id_stg_north_l !< north lateral boundary local core id in case of turbulence generator |
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149 | INTEGER(iwp) :: id_stg_right_l !< right lateral boundary local core id in case of turbulence generator |
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150 | INTEGER(iwp) :: id_stg_south_l !< south lateral boundary local core id in case of turbulence generator |
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151 | INTEGER(iwp) :: ind(5) !< array containing the subdomain bounds |
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152 | #endif |
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153 | INTEGER(iwp) :: j !< running index, used for various loops |
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154 | INTEGER(iwp) :: k !< number of vertical grid points in different multigrid level |
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155 | INTEGER(iwp) :: maximum_grid_level_l !< maximum number of grid level without switching to PE 0 |
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156 | INTEGER(iwp) :: mg_levels_x !< maximum number of grid level allowed along x-direction |
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157 | INTEGER(iwp) :: mg_levels_y !< maximum number of grid level allowed along y-direction |
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158 | INTEGER(iwp) :: mg_levels_z !< maximum number of grid level allowed along z-direction |
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159 | INTEGER(iwp) :: mg_switch_to_pe0_level_l !< maximum number of grid level with switching to PE 0 |
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160 | #if defined( __parallel ) |
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161 | INTEGER(iwp) :: nnx_y !< quotient of number of grid points along x-direction and number of PEs used along y-direction |
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162 | INTEGER(iwp) :: nny_x !< quotient of number of grid points along y-direction and number of PEs used along x-direction |
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163 | INTEGER(iwp) :: nny_z !< quotient of number of grid points along y-direction and number of PEs used along x-direction |
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164 | INTEGER(iwp) :: nnz_x !< quotient of number of grid points along z-direction and number of PEs used along x-direction |
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165 | INTEGER(iwp) :: nnz_y !< quotient of number of grid points along z-direction and number of PEs used along x-direction |
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166 | INTEGER(iwp) :: numproc_sqr !< square root of the number of processors |
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167 | #endif |
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168 | INTEGER(iwp) :: nxl_l !< lower index bound along x-direction on subdomain and different multigrid level |
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169 | INTEGER(iwp) :: nxr_l !< upper index bound along x-direction on subdomain and different multigrid level |
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170 | INTEGER(iwp) :: nyn_l !< lower index bound along y-direction on subdomain and different multigrid level |
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171 | INTEGER(iwp) :: nys_l !< upper index bound along y-direction on subdomain and different multigrid level |
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172 | #if defined( __parallel ) |
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173 | INTEGER(iwp) :: nzb_l !< lower index bound along z-direction on subdomain and different multigrid level |
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174 | #endif |
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175 | INTEGER(iwp) :: nzt_l !< upper index bound along z-direction on subdomain and different multigrid level |
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176 | !$ INTEGER(iwp) :: omp_get_num_threads !< number of OpenMP threads |
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177 | |
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178 | #if defined( __parallel ) |
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179 | INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: ind_all !< dummy array containing index bounds on subdomain, used for gathering |
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180 | INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: nxlf !< lower index bound allong x-direction for every PE |
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181 | INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: nxrf !< upper index bound allong x-direction for every PE |
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182 | INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: nynf !< lower index bound allong y-direction for every PE |
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183 | INTEGER(iwp), DIMENSION(:), ALLOCATABLE :: nysf !< lower index bound allong y-direction for every PE |
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184 | |
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185 | INTEGER(iwp), DIMENSION(2) :: pdims_remote !< number of PEs used for coupled model (only in atmospher-ocean coupling) |
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186 | INTEGER(iwp) :: lcoord(2) !< PE coordinates of left neighbor along x and y |
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187 | INTEGER(iwp) :: rcoord(2) !< PE coordinates of right neighbor along x and y |
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188 | #endif |
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189 | |
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190 | ! |
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191 | !-- Get the number of OpenMP threads |
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192 | !$OMP PARALLEL |
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193 | !$ threads_per_task = omp_get_num_threads() |
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194 | !$OMP END PARALLEL |
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195 | |
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196 | |
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197 | #if defined( __parallel ) |
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198 | |
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199 | CALL location_message( 'creating virtual PE grids + MPI derived data types', 'start' ) |
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200 | |
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201 | ! |
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202 | !-- Determine the processor topology or check it, if prescribed by the user |
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203 | IF ( npex == -1 .AND. npey == -1 ) THEN |
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204 | |
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205 | ! |
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206 | !-- Automatic determination of the topology |
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207 | numproc_sqr = SQRT( REAL( numprocs, KIND=wp ) ) |
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208 | pdims(1) = MAX( numproc_sqr , 1 ) |
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209 | DO WHILE ( MOD( numprocs , pdims(1) ) /= 0 ) |
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210 | pdims(1) = pdims(1) - 1 |
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211 | ENDDO |
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212 | pdims(2) = numprocs / pdims(1) |
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213 | |
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214 | ELSEIF ( npex /= -1 .AND. npey /= -1 ) THEN |
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215 | |
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216 | ! |
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217 | !-- Prescribed by user. Number of processors on the prescribed topology must be equal to the |
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218 | !-- number of PEs available to the job |
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219 | IF ( ( npex * npey ) /= numprocs ) THEN |
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220 | WRITE( message_string, * ) 'number of PEs of the prescribed ', 'topology (', npex*npey, & |
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221 | ') does not match & the number of ', & |
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222 | 'PEs available to the job (', numprocs, ')' |
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223 | CALL message( 'init_pegrid', 'PA0221', 1, 2, 0, 6, 0 ) |
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224 | ENDIF |
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225 | pdims(1) = npex |
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226 | pdims(2) = npey |
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227 | |
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228 | ELSE |
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229 | ! |
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230 | !-- If the processor topology is prescribed by the user, the number of |
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231 | !-- PEs must be given in both directions |
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232 | message_string = 'if the processor topology is prescribed by th' // & |
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233 | 'e user & both values of "npex" and "npey" must be given' // & |
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234 | ' in the &NAMELIST-parameter file' |
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235 | CALL message( 'init_pegrid', 'PA0222', 1, 2, 0, 6, 0 ) |
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236 | |
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237 | ENDIF |
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238 | |
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239 | ! |
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240 | !-- Create four default MPI communicators for the 2d virtual PE grid. One of them will be used as |
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241 | !-- the main communicator for this run, while others might be used for specific quantities like |
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242 | !-- aerosol, chemical species, or passive scalars), if their horizontal boundary conditions shall |
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243 | !-- be different from those of the other quantities (e.g. non-cyclic conditions for aerosols, and |
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244 | !-- cyclic conditions for all others). |
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245 | DO i = 1, 4 |
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246 | |
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247 | IF ( i == 1 ) cyclic = (/ .TRUE., .TRUE. /) ! cyclic along x and y |
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248 | IF ( i == 2 ) cyclic = (/ .TRUE., .FALSE. /) ! cyclic along x |
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249 | IF ( i == 3 ) cyclic = (/ .FALSE., .TRUE. /) ! cyllic along y |
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250 | IF ( i == 4 ) cyclic = (/ .FALSE., .FALSE. /) ! non-cyclic |
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251 | |
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252 | CALL MPI_CART_CREATE( comm_palm, ndim, pdims, cyclic, reorder, & |
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253 | communicator_configurations(i)%mpi_communicator, ierr ) |
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254 | |
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255 | CALL MPI_CART_SHIFT( communicator_configurations(i)%mpi_communicator, 0, 1, & |
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256 | communicator_configurations(i)%pleft, & |
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257 | communicator_configurations(i)%pright, ierr ) |
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258 | |
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259 | CALL MPI_CART_SHIFT( communicator_configurations(i)%mpi_communicator, 1, 1, & |
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260 | communicator_configurations(i)%psouth, & |
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261 | communicator_configurations(i)%pnorth, ierr ) |
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262 | |
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263 | ENDDO |
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264 | |
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265 | ! |
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266 | !-- If necessary, set horizontal boundary conditions to non-cyclic |
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267 | IF ( bc_lr /= 'cyclic' ) cyclic(1) = .FALSE. |
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268 | IF ( bc_ns /= 'cyclic' ) cyclic(2) = .FALSE. |
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269 | |
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270 | |
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271 | ! |
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272 | !-- Set the main communicator (virtual pe grid) for this run |
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273 | IF ( bc_lr == 'cyclic' .AND. bc_ns == 'cyclic' ) i = 1 |
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274 | IF ( bc_lr == 'cyclic' .AND. bc_ns /= 'cyclic' ) i = 2 |
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275 | IF ( bc_lr /= 'cyclic' .AND. bc_ns == 'cyclic' ) i = 3 |
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276 | IF ( bc_lr /= 'cyclic' .AND. bc_ns /= 'cyclic' ) i = 4 |
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277 | |
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278 | comm2d = communicator_configurations(i)%mpi_communicator |
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279 | pleft = communicator_configurations(i)%pleft |
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280 | pright = communicator_configurations(i)%pright |
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281 | psouth = communicator_configurations(i)%psouth |
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282 | pnorth = communicator_configurations(i)%pnorth |
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283 | |
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284 | ! |
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285 | !-- Set rank and coordinates of the main communicator |
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286 | CALL MPI_COMM_RANK( comm2d, myid, ierr ) |
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287 | WRITE (myid_char,'(''_'',I6.6)') myid |
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288 | |
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289 | CALL MPI_CART_COORDS( comm2d, myid, ndim, pcoord, ierr ) |
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290 | |
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291 | ! |
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292 | !-- In case of cyclic boundary conditions, a y-shift at the boundaries in x-direction can be |
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293 | !-- introduced via parameter y_shift. The shift is done by modifying the processor grid in such a |
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294 | !-- way that processors located at the x-boundary communicate across it to processors with |
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295 | !-- y-coordinate shifted by y_shift relative to their own. This feature can not be used in |
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296 | !-- combination with an fft pressure solver. It has been implemented to counter the effect of streak |
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297 | !-- structures in case of cyclic boundary conditions. For a description of these see Munters |
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298 | !-- (2016; dx.doi.org/10.1063/1.4941912) |
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299 | !-- |
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300 | !-- Get coordinates of left and right neighbor on PE grid |
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301 | IF ( y_shift /= 0 ) THEN |
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302 | IF ( bc_lr == 'cyclic' ) THEN |
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303 | IF ( TRIM( psolver ) /= 'multigrid' .AND. TRIM( psolver ) /= 'multigrid_noopt') THEN |
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304 | message_string = 'y_shift /= 0 requires a multigrid pressure solver ' |
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305 | CALL message( 'check_parameters', 'PA0468', 1, 2, 0, 6, 0 ) |
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306 | ENDIF |
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307 | |
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308 | CALL MPI_CART_COORDS( comm2d, pright, ndim, rcoord, ierr ) |
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309 | CALL MPI_CART_COORDS( comm2d, pleft, ndim, lcoord, ierr ) |
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310 | |
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311 | ! |
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312 | !-- If the x(y)-coordinate of the right (left) neighbor is smaller (greater) than that of the |
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313 | !-- calling process, then the calling process is located on the right (left) boundary of the |
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314 | !-- processor grid. In that case, the y-coordinate of that neighbor is increased (decreased) |
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315 | !-- by y_shift. |
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316 | !-- The rank of the process with that coordinate is then inquired and the neighbor rank for |
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317 | !-- MPI_SENDRECV, pright (pleft) is set to it. |
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318 | !-- In this way, the calling process receives a new right (left) neighbor for all future |
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319 | !-- MPI_SENDRECV calls. That neighbor has a y-coordinate of y+(-)y_shift, where y is the |
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320 | !-- original right (left) neighbor's y-coordinate. The modulo-operation ensures that if the |
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321 | !-- neighbor's y-coordinate exceeds the grid-boundary, it will be relocated to the opposite |
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322 | !-- part of the grid cyclicly. |
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323 | IF ( rcoord(1) < pcoord(1) ) THEN |
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324 | rcoord(2) = MODULO( rcoord(2) + y_shift, pdims(2) ) |
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325 | CALL MPI_CART_RANK( comm2d, rcoord, pright, ierr ) |
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326 | ENDIF |
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327 | |
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328 | IF ( lcoord(1) > pcoord(1) ) THEN |
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329 | lcoord(2) = MODULO( lcoord(2) - y_shift, pdims(2) ) |
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330 | CALL MPI_CART_RANK( comm2d, lcoord, pleft, ierr ) |
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331 | ENDIF |
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332 | |
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333 | ELSE |
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334 | ! |
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335 | !-- y-shift for non-cyclic boundary conditions is only implemented |
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336 | !-- for the turbulence recycling method in inflow_turbulence.f90 |
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337 | IF ( .NOT. turbulent_inflow ) THEN |
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338 | message_string = 'y_shift /= 0 is only allowed for cyclic ' // & |
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339 | 'boundary conditions in both directions ' // & |
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340 | 'or with turbulent_inflow == .TRUE.' |
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341 | CALL message( 'check_parameters', 'PA0467', 1, 2, 0, 6, 0 ) |
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342 | ENDIF |
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343 | ENDIF |
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344 | ENDIF |
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345 | |
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346 | ! |
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347 | !-- Determine sub-topologies for transpositions |
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348 | !-- Transposition from z to x: |
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349 | remain_dims(1) = .TRUE. |
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350 | remain_dims(2) = .FALSE. |
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351 | CALL MPI_CART_SUB( comm2d, remain_dims, comm1dx, ierr ) |
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352 | CALL MPI_COMM_RANK( comm1dx, myidx, ierr ) |
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353 | ! |
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354 | !-- Transposition from x to y |
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355 | remain_dims(1) = .FALSE. |
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356 | remain_dims(2) = .TRUE. |
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357 | CALL MPI_CART_SUB( comm2d, remain_dims, comm1dy, ierr ) |
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358 | CALL MPI_COMM_RANK( comm1dy, myidy, ierr ) |
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359 | |
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360 | ! |
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361 | !-- Calculate array bounds along x-direction for every PE. |
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362 | ALLOCATE( nxlf(0:pdims(1)-1), nxrf(0:pdims(1)-1), nynf(0:pdims(2)-1), nysf(0:pdims(2)-1) ) |
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363 | |
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364 | IF ( MOD( nx+1 , pdims(1) ) /= 0 ) THEN |
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365 | WRITE( message_string, * ) 'x-direction: gridpoint number (' ,nx+1, ') ', & |
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366 | 'is not an& integral multiple of the number', & |
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367 | ' of processors (', pdims(1), ')' |
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368 | CALL message( 'init_pegrid', 'PA0225', 1, 2, 0, 6, 0 ) |
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369 | ELSE |
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370 | nnx = ( nx + 1 ) / pdims(1) |
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371 | ENDIF |
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372 | |
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373 | ! |
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374 | !-- Left and right array bounds, number of gridpoints |
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375 | DO i = 0, pdims(1)-1 |
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376 | nxlf(i) = i * nnx |
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377 | nxrf(i) = ( i + 1 ) * nnx - 1 |
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378 | ENDDO |
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379 | |
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380 | ! |
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381 | !-- Calculate array bounds in y-direction for every PE. |
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382 | IF ( MOD( ny+1 , pdims(2) ) /= 0 ) THEN |
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383 | WRITE( message_string, * ) 'y-direction: gridpoint number (', ny+1, ') ', & |
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384 | 'is not an& integral multiple of the number', & |
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385 | ' of processors (', pdims(2), ')' |
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386 | CALL message( 'init_pegrid', 'PA0227', 1, 2, 0, 6, 0 ) |
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387 | ELSE |
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388 | nny = ( ny + 1 ) / pdims(2) |
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389 | ENDIF |
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390 | |
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391 | ! |
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392 | !-- South and north array bounds |
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393 | DO j = 0, pdims(2)-1 |
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394 | nysf(j) = j * nny |
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395 | nynf(j) = ( j + 1 ) * nny - 1 |
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396 | ENDDO |
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397 | |
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398 | ! |
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399 | !-- Local array bounds of the respective PEs |
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400 | nxl = nxlf(pcoord(1)) |
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401 | nxr = nxrf(pcoord(1)) |
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402 | nys = nysf(pcoord(2)) |
---|
403 | nyn = nynf(pcoord(2)) |
---|
404 | nzb = 0 |
---|
405 | nzt = nz |
---|
406 | nnz = nz |
---|
407 | |
---|
408 | ! |
---|
409 | !-- Set switches to define if the PE is situated at the border of the virtual processor grid |
---|
410 | IF ( nxl == 0 ) left_border_pe = .TRUE. |
---|
411 | IF ( nxr == nx ) right_border_pe = .TRUE. |
---|
412 | IF ( nys == 0 ) south_border_pe = .TRUE. |
---|
413 | IF ( nyn == ny ) north_border_pe = .TRUE. |
---|
414 | |
---|
415 | ! |
---|
416 | !-- Calculate array bounds and gridpoint numbers for the transposed arrays (needed in the pressure |
---|
417 | !-- solver) |
---|
418 | !-- For the transposed arrays, cyclic boundaries as well as top and bottom boundaries are omitted, |
---|
419 | !-- because they are obstructive to the transposition |
---|
420 | |
---|
421 | ! |
---|
422 | !-- 1. transposition z --> x |
---|
423 | !-- This transposition is not neccessary in case of a 1d-decomposition along x |
---|
424 | IF ( psolver == 'poisfft' .OR. calculate_spectra ) THEN |
---|
425 | |
---|
426 | IF ( pdims(2) /= 1 ) THEN |
---|
427 | IF ( MOD( nz , pdims(1) ) /= 0 ) THEN |
---|
428 | WRITE( message_string, * ) 'transposition z --> x:& ', & |
---|
429 | 'nz=', nz, ' is not an integral multiple ', & |
---|
430 | 'of pdims(1)=', pdims(1) |
---|
431 | CALL message( 'init_pegrid', 'PA0230', 1, 2, 0, 6, 0 ) |
---|
432 | ENDIF |
---|
433 | ENDIF |
---|
434 | |
---|
435 | nys_x = nys |
---|
436 | nyn_x = nyn |
---|
437 | nny_x = nny |
---|
438 | nnz_x = nz / pdims(1) |
---|
439 | nzb_x = 1 + myidx * nnz_x |
---|
440 | nzt_x = ( myidx + 1 ) * nnz_x |
---|
441 | sendrecvcount_zx = nnx * nny * nnz_x |
---|
442 | |
---|
443 | ENDIF |
---|
444 | |
---|
445 | |
---|
446 | IF ( psolver == 'poisfft' ) THEN |
---|
447 | ! |
---|
448 | !-- 2. transposition x --> y |
---|
449 | IF ( MOD( nx+1 , pdims(2) ) /= 0 ) THEN |
---|
450 | WRITE( message_string, * ) 'transposition x --> y:& ', & |
---|
451 | 'nx+1=', nx+1, ' is not an integral ', & |
---|
452 | 'multiple of pdims(2)=', pdims(2) |
---|
453 | CALL message( 'init_pegrid', 'PA0231', 1, 2, 0, 6, 0 ) |
---|
454 | ENDIF |
---|
455 | |
---|
456 | nnz_y = nnz_x |
---|
457 | nzb_y = nzb_x |
---|
458 | nzt_y = nzt_x |
---|
459 | nnx_y = (nx+1) / pdims(2) |
---|
460 | nxl_y = myidy * nnx_y |
---|
461 | nxr_y = ( myidy + 1 ) * nnx_y - 1 |
---|
462 | sendrecvcount_xy = nnx_y * nny_x * nnz_y |
---|
463 | ! |
---|
464 | !-- 3. transposition y --> z |
---|
465 | !-- (ELSE: x --> y in case of 1D-decomposition along x) |
---|
466 | nxl_z = nxl_y |
---|
467 | nxr_z = nxr_y |
---|
468 | nny_z = (ny+1) / pdims(1) |
---|
469 | nys_z = myidx * nny_z |
---|
470 | nyn_z = ( myidx + 1 ) * nny_z - 1 |
---|
471 | sendrecvcount_yz = nnx_y * nny_z * nnz_y |
---|
472 | |
---|
473 | IF ( pdims(2) /= 1 ) THEN |
---|
474 | ! |
---|
475 | !-- y --> z |
---|
476 | !-- This transposition is not neccessary in case of a 1d-decomposition |
---|
477 | !-- along x, except that the uptream-spline method is switched on |
---|
478 | IF ( MOD( ny+1 , pdims(1) ) /= 0 ) THEN |
---|
479 | WRITE( message_string, * ) 'transposition y --> z:& ', & |
---|
480 | 'ny+1=', ny+1, ' is not an integral ', & |
---|
481 | 'multiple of pdims(1)=', pdims(1) |
---|
482 | CALL message( 'init_pegrid', 'PA0232', 1, 2, 0, 6, 0 ) |
---|
483 | ENDIF |
---|
484 | |
---|
485 | ELSE |
---|
486 | ! |
---|
487 | !-- x --> y |
---|
488 | !-- This condition must be fulfilled for a 1D-decomposition along x |
---|
489 | IF ( MOD( ny+1 , pdims(1) ) /= 0 ) THEN |
---|
490 | WRITE( message_string, * ) 'transposition x --> y:& ', & |
---|
491 | 'ny+1=', ny+1, ' is not an integral ', & |
---|
492 | 'multiple of pdims(1)=', pdims(1) |
---|
493 | CALL message( 'init_pegrid', 'PA0233', 1, 2, 0, 6, 0 ) |
---|
494 | ENDIF |
---|
495 | |
---|
496 | ENDIF |
---|
497 | |
---|
498 | ENDIF |
---|
499 | |
---|
500 | ! |
---|
501 | !-- Indices for direct transpositions z --> y (used for calculating spectra) |
---|
502 | IF ( calculate_spectra ) THEN |
---|
503 | IF ( MOD( nz, pdims(2) ) /= 0 ) THEN |
---|
504 | WRITE( message_string, * ) 'direct transposition z --> y (needed ', & |
---|
505 | 'for spectra):& nz=', nz, ' is not an ', & |
---|
506 | 'integral multiple of pdims(2)=', pdims(2) |
---|
507 | CALL message( 'init_pegrid', 'PA0234', 1, 2, 0, 6, 0 ) |
---|
508 | ELSE |
---|
509 | nxl_yd = nxl |
---|
510 | nxr_yd = nxr |
---|
511 | nzb_yd = 1 + myidy * ( nz / pdims(2) ) |
---|
512 | nzt_yd = ( myidy + 1 ) * ( nz / pdims(2) ) |
---|
513 | sendrecvcount_zyd = nnx * nny * ( nz / pdims(2) ) |
---|
514 | ENDIF |
---|
515 | ENDIF |
---|
516 | |
---|
517 | IF ( psolver == 'poisfft' .OR. calculate_spectra ) THEN |
---|
518 | ! |
---|
519 | !-- Indices for direct transpositions y --> x |
---|
520 | !-- (they are only possible in case of a 1d-decomposition along x) |
---|
521 | IF ( pdims(2) == 1 ) THEN |
---|
522 | nny_x = nny / pdims(1) |
---|
523 | nys_x = myid * nny_x |
---|
524 | nyn_x = ( myid + 1 ) * nny_x - 1 |
---|
525 | nzb_x = 1 |
---|
526 | nzt_x = nz |
---|
527 | sendrecvcount_xy = nnx * nny_x * nz |
---|
528 | ENDIF |
---|
529 | |
---|
530 | ENDIF |
---|
531 | |
---|
532 | IF ( psolver == 'poisfft' ) THEN |
---|
533 | ! |
---|
534 | !-- Indices for direct transpositions x --> y |
---|
535 | !-- (they are only possible in case of a 1d-decomposition along y) |
---|
536 | IF ( pdims(1) == 1 ) THEN |
---|
537 | nnx_y = nnx / pdims(2) |
---|
538 | nxl_y = myid * nnx_y |
---|
539 | nxr_y = ( myid + 1 ) * nnx_y - 1 |
---|
540 | nzb_y = 1 |
---|
541 | nzt_y = nz |
---|
542 | sendrecvcount_xy = nnx_y * nny * nz |
---|
543 | ENDIF |
---|
544 | |
---|
545 | ENDIF |
---|
546 | |
---|
547 | ! |
---|
548 | !-- Arrays for storing the array bounds are needed any more |
---|
549 | DEALLOCATE( nxlf , nxrf , nynf , nysf ) |
---|
550 | |
---|
551 | |
---|
552 | ! |
---|
553 | !-- Collect index bounds from other PEs (to be written to restart file later) |
---|
554 | ALLOCATE( hor_index_bounds(4,0:numprocs-1) ) |
---|
555 | |
---|
556 | IF ( myid == 0 ) THEN |
---|
557 | |
---|
558 | hor_index_bounds(1,0) = nxl |
---|
559 | hor_index_bounds(2,0) = nxr |
---|
560 | hor_index_bounds(3,0) = nys |
---|
561 | hor_index_bounds(4,0) = nyn |
---|
562 | |
---|
563 | ! |
---|
564 | !-- Receive data from all other PEs |
---|
565 | DO i = 1, numprocs-1 |
---|
566 | CALL MPI_RECV( ibuf, 4, MPI_INTEGER, i, MPI_ANY_TAG, comm2d, status, ierr ) |
---|
567 | hor_index_bounds(:,i) = ibuf(1:4) |
---|
568 | ENDDO |
---|
569 | |
---|
570 | ELSE |
---|
571 | ! |
---|
572 | !-- Send index bounds to PE0 |
---|
573 | ibuf(1) = nxl |
---|
574 | ibuf(2) = nxr |
---|
575 | ibuf(3) = nys |
---|
576 | ibuf(4) = nyn |
---|
577 | CALL MPI_SEND( ibuf, 4, MPI_INTEGER, 0, myid, comm2d, ierr ) |
---|
578 | |
---|
579 | ENDIF |
---|
580 | |
---|
581 | |
---|
582 | #if defined( __print ) |
---|
583 | ! |
---|
584 | !-- Control output |
---|
585 | IF ( myid == 0 ) THEN |
---|
586 | PRINT*, '*** processor topology ***' |
---|
587 | PRINT*, ' ' |
---|
588 | PRINT*, 'myid pcoord left right south north idx idy nxl: nxr',' nys: nyn' |
---|
589 | PRINT*, '------------------------------------------------------------','-----------' |
---|
590 | WRITE (*,1000) 0, pcoord(1), pcoord(2), pleft, pright, psouth, pnorth, myidx, myidy, nxl, & |
---|
591 | nxr, nys, nyn |
---|
592 | 1000 FORMAT (I4,2X,'(',I3,',',I3,')',3X,I4,2X,I4,3X,I4,2X,I4,2X,I3,1X,I3,2(2X,I4,':',I4)) |
---|
593 | |
---|
594 | ! |
---|
595 | !-- Receive data from the other PEs |
---|
596 | DO i = 1,numprocs-1 |
---|
597 | CALL MPI_RECV( ibuf, 12, MPI_INTEGER, i, MPI_ANY_TAG, comm2d, status, ierr ) |
---|
598 | WRITE (*,1000) i, ( ibuf(j) , j = 1,12 ) |
---|
599 | ENDDO |
---|
600 | ELSE |
---|
601 | |
---|
602 | ! |
---|
603 | !-- Send data to PE0 |
---|
604 | ibuf(1) = pcoord(1); ibuf(2) = pcoord(2); ibuf(3) = pleft |
---|
605 | ibuf(4) = pright; ibuf(5) = psouth; ibuf(6) = pnorth; ibuf(7) = myidx |
---|
606 | ibuf(8) = myidy; ibuf(9) = nxl; ibuf(10) = nxr; ibuf(11) = nys |
---|
607 | ibuf(12) = nyn |
---|
608 | CALL MPI_SEND( ibuf, 12, MPI_INTEGER, 0, myid, comm2d, ierr ) |
---|
609 | ENDIF |
---|
610 | #endif |
---|
611 | |
---|
612 | ! |
---|
613 | !-- Determine the number of ghost point layers |
---|
614 | IF ( scalar_advec == 'ws-scheme' .OR. & |
---|
615 | momentum_advec == 'ws-scheme' .OR. nested_run ) THEN |
---|
616 | nbgp = 3 |
---|
617 | ELSE |
---|
618 | nbgp = 1 |
---|
619 | ENDIF |
---|
620 | |
---|
621 | ! |
---|
622 | !-- Check that the number of computational grid points is not smaller than the number of ghost |
---|
623 | !-- points. |
---|
624 | IF ( nnx < nbgp ) THEN |
---|
625 | WRITE( message_string, * ) 'number of subdomain grid points along x (', nnx, ') is smaller',& |
---|
626 | 'than the number of ghost points (', nbgp, ')' |
---|
627 | CALL message( 'init_pegrid', 'PA0682', 1, 2, 0, 6, 0 ) |
---|
628 | ENDIF |
---|
629 | IF ( nny < nbgp ) THEN |
---|
630 | WRITE( message_string, * ) 'number of subdomain grid points along y (', nny, ') is smaller',& |
---|
631 | 'than the number of ghost points (', nbgp, ')' |
---|
632 | CALL message( 'init_pegrid', 'PA0683', 1, 2, 0, 6, 0 ) |
---|
633 | ENDIF |
---|
634 | |
---|
635 | ! |
---|
636 | !-- Create a new MPI derived datatype for the exchange of surface (xy) data, which is needed for |
---|
637 | !-- coupled atmosphere-ocean runs. |
---|
638 | !-- First, calculate number of grid points of an xy-plane. |
---|
639 | ngp_xy = ( nxr - nxl + 1 + 2 * nbgp ) * ( nyn - nys + 1 + 2 * nbgp ) |
---|
640 | CALL MPI_TYPE_VECTOR( ngp_xy, 1, nzt-nzb+2, MPI_REAL, type_xy, ierr ) |
---|
641 | CALL MPI_TYPE_COMMIT( type_xy, ierr ) |
---|
642 | |
---|
643 | IF ( TRIM( coupling_mode ) /= 'uncoupled' ) THEN |
---|
644 | |
---|
645 | ! |
---|
646 | !-- Pass the number of grid points of the atmosphere model to |
---|
647 | !-- the ocean model and vice versa |
---|
648 | IF ( coupling_mode == 'atmosphere_to_ocean' ) THEN |
---|
649 | |
---|
650 | nx_a = nx |
---|
651 | ny_a = ny |
---|
652 | |
---|
653 | IF ( myid == 0 ) THEN |
---|
654 | |
---|
655 | CALL MPI_SEND( nx_a, 1, MPI_INTEGER, numprocs, 1, comm_inter, ierr ) |
---|
656 | CALL MPI_SEND( ny_a, 1, MPI_INTEGER, numprocs, 2, comm_inter, ierr ) |
---|
657 | CALL MPI_SEND( pdims, 2, MPI_INTEGER, numprocs, 3, comm_inter, ierr ) |
---|
658 | CALL MPI_RECV( nx_o, 1, MPI_INTEGER, numprocs, 4, comm_inter, status, ierr ) |
---|
659 | CALL MPI_RECV( ny_o, 1, MPI_INTEGER, numprocs, 5, comm_inter, status, ierr ) |
---|
660 | CALL MPI_RECV( pdims_remote, 2, MPI_INTEGER, numprocs, 6, comm_inter, status, ierr ) |
---|
661 | ENDIF |
---|
662 | |
---|
663 | CALL MPI_BCAST( nx_o, 1, MPI_INTEGER, 0, comm2d, ierr ) |
---|
664 | CALL MPI_BCAST( ny_o, 1, MPI_INTEGER, 0, comm2d, ierr ) |
---|
665 | CALL MPI_BCAST( pdims_remote, 2, MPI_INTEGER, 0, comm2d, ierr ) |
---|
666 | |
---|
667 | ELSEIF ( coupling_mode == 'ocean_to_atmosphere' ) THEN |
---|
668 | |
---|
669 | nx_o = nx |
---|
670 | ny_o = ny |
---|
671 | |
---|
672 | IF ( myid == 0 ) THEN |
---|
673 | |
---|
674 | CALL MPI_RECV( nx_a, 1, MPI_INTEGER, 0, 1, comm_inter, status, ierr ) |
---|
675 | CALL MPI_RECV( ny_a, 1, MPI_INTEGER, 0, 2, comm_inter, status, ierr ) |
---|
676 | CALL MPI_RECV( pdims_remote, 2, MPI_INTEGER, 0, 3, comm_inter, status, ierr ) |
---|
677 | CALL MPI_SEND( nx_o, 1, MPI_INTEGER, 0, 4, comm_inter, ierr ) |
---|
678 | CALL MPI_SEND( ny_o, 1, MPI_INTEGER, 0, 5, comm_inter, ierr ) |
---|
679 | CALL MPI_SEND( pdims, 2, MPI_INTEGER, 0, 6, comm_inter, ierr ) |
---|
680 | ENDIF |
---|
681 | |
---|
682 | CALL MPI_BCAST( nx_a, 1, MPI_INTEGER, 0, comm2d, ierr) |
---|
683 | CALL MPI_BCAST( ny_a, 1, MPI_INTEGER, 0, comm2d, ierr) |
---|
684 | CALL MPI_BCAST( pdims_remote, 2, MPI_INTEGER, 0, comm2d, ierr) |
---|
685 | |
---|
686 | ENDIF |
---|
687 | |
---|
688 | ngp_a = ( nx_a+1 + 2 * nbgp ) * ( ny_a+1 + 2 * nbgp ) |
---|
689 | ngp_o = ( nx_o+1 + 2 * nbgp ) * ( ny_o+1 + 2 * nbgp ) |
---|
690 | |
---|
691 | ! |
---|
692 | !-- Determine if the horizontal grid and the number of PEs in ocean and atmosphere is same or not. |
---|
693 | IF ( nx_o == nx_a .AND. ny_o == ny_a .AND. & |
---|
694 | pdims(1) == pdims_remote(1) .AND. pdims(2) == pdims_remote(2) ) THEN |
---|
695 | coupling_topology = 0 |
---|
696 | ELSE |
---|
697 | coupling_topology = 1 |
---|
698 | ENDIF |
---|
699 | |
---|
700 | ! |
---|
701 | !-- Determine the target PEs for the exchange between ocean and atmosphere (comm2d) |
---|
702 | IF ( coupling_topology == 0 ) THEN |
---|
703 | ! |
---|
704 | !-- In case of identical topologies, every atmosphere PE has exactly one ocean PE counterpart |
---|
705 | !-- and vice versa |
---|
706 | IF ( TRIM( coupling_mode ) == 'atmosphere_to_ocean' ) THEN |
---|
707 | target_id = myid + numprocs |
---|
708 | ELSE |
---|
709 | target_id = myid |
---|
710 | ENDIF |
---|
711 | |
---|
712 | ELSE |
---|
713 | ! |
---|
714 | !-- In case of nonequivalent topology in ocean and atmosphere only for PE0 in ocean and PE0 in |
---|
715 | !-- atmosphere a target_id is needed, since data echxchange between ocean and atmosphere will |
---|
716 | !-- be done only between these PEs. |
---|
717 | IF ( myid == 0 ) THEN |
---|
718 | |
---|
719 | IF ( TRIM( coupling_mode ) == 'atmosphere_to_ocean' ) THEN |
---|
720 | target_id = numprocs |
---|
721 | ELSE |
---|
722 | target_id = 0 |
---|
723 | ENDIF |
---|
724 | |
---|
725 | ENDIF |
---|
726 | |
---|
727 | ENDIF |
---|
728 | |
---|
729 | ENDIF |
---|
730 | |
---|
731 | #else |
---|
732 | |
---|
733 | ! |
---|
734 | !-- Array bounds when running on a single PE (respectively a non-parallel machine) |
---|
735 | nxl = 0 |
---|
736 | nxr = nx |
---|
737 | nnx = nxr - nxl + 1 |
---|
738 | nys = 0 |
---|
739 | nyn = ny |
---|
740 | nny = nyn - nys + 1 |
---|
741 | nzb = 0 |
---|
742 | nzt = nz |
---|
743 | nnz = nz |
---|
744 | |
---|
745 | ALLOCATE( hor_index_bounds(4,0:0) ) |
---|
746 | hor_index_bounds(1,0) = nxl |
---|
747 | hor_index_bounds(2,0) = nxr |
---|
748 | hor_index_bounds(3,0) = nys |
---|
749 | hor_index_bounds(4,0) = nyn |
---|
750 | |
---|
751 | ! |
---|
752 | !-- Array bounds for the pressure solver (in the parallel code, these bounds are the ones for the |
---|
753 | !-- transposed arrays) |
---|
754 | nys_x = nys |
---|
755 | nyn_x = nyn |
---|
756 | nzb_x = nzb + 1 |
---|
757 | nzt_x = nzt |
---|
758 | |
---|
759 | nxl_y = nxl |
---|
760 | nxr_y = nxr |
---|
761 | nzb_y = nzb + 1 |
---|
762 | nzt_y = nzt |
---|
763 | |
---|
764 | nxl_z = nxl |
---|
765 | nxr_z = nxr |
---|
766 | nys_z = nys |
---|
767 | nyn_z = nyn |
---|
768 | |
---|
769 | #endif |
---|
770 | |
---|
771 | ! |
---|
772 | !-- Calculate number of grid levels necessary for the multigrid poisson solver as well as the |
---|
773 | !-- gridpoint indices on each level |
---|
774 | IF ( psolver(1:9) == 'multigrid' ) THEN |
---|
775 | |
---|
776 | ! |
---|
777 | !-- First calculate number of possible grid levels for the subdomains |
---|
778 | mg_levels_x = 1 |
---|
779 | mg_levels_y = 1 |
---|
780 | mg_levels_z = 1 |
---|
781 | |
---|
782 | i = nnx |
---|
783 | DO WHILE ( MOD( i, 2 ) == 0 .AND. i /= 2 ) |
---|
784 | i = i / 2 |
---|
785 | mg_levels_x = mg_levels_x + 1 |
---|
786 | ENDDO |
---|
787 | |
---|
788 | j = nny |
---|
789 | DO WHILE ( MOD( j, 2 ) == 0 .AND. j /= 2 ) |
---|
790 | j = j / 2 |
---|
791 | mg_levels_y = mg_levels_y + 1 |
---|
792 | ENDDO |
---|
793 | |
---|
794 | k = nz ! do not use nnz because it might be > nz due to transposition |
---|
795 | ! requirements |
---|
796 | DO WHILE ( MOD( k, 2 ) == 0 .AND. k /= 2 ) |
---|
797 | k = k / 2 |
---|
798 | mg_levels_z = mg_levels_z + 1 |
---|
799 | ENDDO |
---|
800 | ! |
---|
801 | !-- The optimized MG-solver does not allow odd values for nz at the coarsest grid level |
---|
802 | IF ( TRIM( psolver ) /= 'multigrid_noopt' ) THEN |
---|
803 | IF ( MOD( k, 2 ) /= 0 ) mg_levels_z = mg_levels_z - 1 |
---|
804 | ! |
---|
805 | !-- An odd value of nz does not work. The finest level must have an even value. |
---|
806 | IF ( mg_levels_z == 0 ) THEN |
---|
807 | message_string = 'optimized multigrid method requires nz to be even' |
---|
808 | CALL message( 'init_pegrid', 'PA0495', 1, 2, 0, 6, 0 ) |
---|
809 | ENDIF |
---|
810 | ENDIF |
---|
811 | |
---|
812 | maximum_grid_level = MIN( mg_levels_x, mg_levels_y, mg_levels_z ) |
---|
813 | ! |
---|
814 | !-- Check if subdomain sizes prevents any coarsening. |
---|
815 | !-- This case, the maximum number of grid levels is 1, i.e. effectively a Gauss-Seidel scheme is |
---|
816 | !-- applied rather than a multigrid approach. |
---|
817 | !-- Give a warning in this case. |
---|
818 | IF ( maximum_grid_level == 1 .AND. mg_switch_to_pe0_level == -1 ) THEN |
---|
819 | message_string = 'No grid coarsening possible, multigrid ' // & |
---|
820 | 'approach effectively reduces to a Gauss-Seidel ' // & |
---|
821 | 'scheme.' |
---|
822 | |
---|
823 | CALL message( 'poismg', 'PA0648', 0, 1, 0, 6, 0 ) |
---|
824 | ENDIF |
---|
825 | |
---|
826 | ! |
---|
827 | !-- Find out, if the total domain allows more levels. These additional levels are identically |
---|
828 | !-- processed on all PEs. |
---|
829 | IF ( numprocs > 1 .AND. mg_switch_to_pe0_level /= -1 ) THEN |
---|
830 | |
---|
831 | IF ( mg_levels_z > MIN( mg_levels_x, mg_levels_y ) ) THEN |
---|
832 | |
---|
833 | mg_switch_to_pe0_level_l = maximum_grid_level |
---|
834 | |
---|
835 | mg_levels_x = 1 |
---|
836 | mg_levels_y = 1 |
---|
837 | |
---|
838 | i = nx+1 |
---|
839 | DO WHILE ( MOD( i, 2 ) == 0 .AND. i /= 2 ) |
---|
840 | i = i / 2 |
---|
841 | mg_levels_x = mg_levels_x + 1 |
---|
842 | ENDDO |
---|
843 | |
---|
844 | j = ny+1 |
---|
845 | DO WHILE ( MOD( j, 2 ) == 0 .AND. j /= 2 ) |
---|
846 | j = j / 2 |
---|
847 | mg_levels_y = mg_levels_y + 1 |
---|
848 | ENDDO |
---|
849 | |
---|
850 | maximum_grid_level_l = MIN( mg_levels_x, mg_levels_y, mg_levels_z ) |
---|
851 | |
---|
852 | IF ( maximum_grid_level_l > mg_switch_to_pe0_level_l ) THEN |
---|
853 | mg_switch_to_pe0_level_l = maximum_grid_level_l - mg_switch_to_pe0_level_l + 1 |
---|
854 | ELSE |
---|
855 | mg_switch_to_pe0_level_l = 0 |
---|
856 | ENDIF |
---|
857 | |
---|
858 | ELSE |
---|
859 | |
---|
860 | mg_switch_to_pe0_level_l = 0 |
---|
861 | maximum_grid_level_l = maximum_grid_level |
---|
862 | |
---|
863 | ENDIF |
---|
864 | |
---|
865 | ! |
---|
866 | !-- Use switch level calculated above only if it is not pre-defined by user |
---|
867 | IF ( mg_switch_to_pe0_level == 0 ) THEN |
---|
868 | IF ( mg_switch_to_pe0_level_l /= 0 ) THEN |
---|
869 | mg_switch_to_pe0_level = mg_switch_to_pe0_level_l |
---|
870 | maximum_grid_level = maximum_grid_level_l |
---|
871 | ENDIF |
---|
872 | |
---|
873 | ELSE |
---|
874 | ! |
---|
875 | !-- Check pre-defined value and reset to default, if neccessary |
---|
876 | IF ( mg_switch_to_pe0_level < mg_switch_to_pe0_level_l .OR. & |
---|
877 | mg_switch_to_pe0_level >= maximum_grid_level_l ) THEN |
---|
878 | message_string = 'mg_switch_to_pe0_level ' // & |
---|
879 | 'out of range and reset to 0' |
---|
880 | CALL message( 'init_pegrid', 'PA0235', 0, 1, 0, 6, 0 ) |
---|
881 | mg_switch_to_pe0_level = 0 |
---|
882 | ELSE |
---|
883 | ! |
---|
884 | !-- Use the largest number of possible levels anyway and recalculate the switch level to |
---|
885 | !-- this largest number of possible values |
---|
886 | maximum_grid_level = maximum_grid_level_l |
---|
887 | |
---|
888 | ENDIF |
---|
889 | |
---|
890 | ENDIF |
---|
891 | |
---|
892 | ENDIF |
---|
893 | |
---|
894 | ALLOCATE( grid_level_count(maximum_grid_level), & |
---|
895 | nxl_mg(0:maximum_grid_level), nxr_mg(0:maximum_grid_level), & |
---|
896 | nyn_mg(0:maximum_grid_level), nys_mg(0:maximum_grid_level), & |
---|
897 | nzt_mg(0:maximum_grid_level) ) |
---|
898 | |
---|
899 | grid_level_count = 0 |
---|
900 | ! |
---|
901 | !-- Index zero required as dummy due to definition of arrays f2 and p2 in recursive subroutine |
---|
902 | !-- next_mg_level |
---|
903 | nxl_mg(0) = 0; nxr_mg(0) = 0; nyn_mg(0) = 0; nys_mg(0) = 0; nzt_mg(0) = 0 |
---|
904 | |
---|
905 | nxl_l = nxl; nxr_l = nxr; nys_l = nys; nyn_l = nyn; nzt_l = nzt |
---|
906 | |
---|
907 | DO i = maximum_grid_level, 1 , -1 |
---|
908 | |
---|
909 | IF ( i == mg_switch_to_pe0_level ) THEN |
---|
910 | #if defined( __parallel ) |
---|
911 | ! |
---|
912 | !-- Save the grid size of the subdomain at the switch level, because it is needed in poismg. |
---|
913 | ind(1) = nxl_l; ind(2) = nxr_l |
---|
914 | ind(3) = nys_l; ind(4) = nyn_l |
---|
915 | ind(5) = nzt_l |
---|
916 | ALLOCATE( ind_all(5*numprocs), mg_loc_ind(5,0:numprocs-1) ) |
---|
917 | CALL MPI_ALLGATHER( ind, 5, MPI_INTEGER, ind_all, 5, & |
---|
918 | MPI_INTEGER, comm2d, ierr ) |
---|
919 | DO j = 0, numprocs-1 |
---|
920 | DO k = 1, 5 |
---|
921 | mg_loc_ind(k,j) = ind_all(k+j*5) |
---|
922 | ENDDO |
---|
923 | ENDDO |
---|
924 | DEALLOCATE( ind_all ) |
---|
925 | ! |
---|
926 | !-- Calculate the grid size of the total domain |
---|
927 | nxr_l = ( nxr_l-nxl_l+1 ) * pdims(1) - 1 |
---|
928 | nxl_l = 0 |
---|
929 | nyn_l = ( nyn_l-nys_l+1 ) * pdims(2) - 1 |
---|
930 | nys_l = 0 |
---|
931 | ! |
---|
932 | !-- The size of this gathered array must not be larger than the array tend, which is used |
---|
933 | !-- in the multigrid scheme as a temporary array. Therefore the subdomain size of an PE is |
---|
934 | !-- calculated and the size of the gathered grid. These values are used in routines pres |
---|
935 | !-- and poismg. |
---|
936 | subdomain_size = ( nxr - nxl + 2 * nbgp + 1 ) * & |
---|
937 | ( nyn - nys + 2 * nbgp + 1 ) * ( nzt - nzb + 2 ) |
---|
938 | gathered_size = ( nxr_l - nxl_l + 3 ) * ( nyn_l - nys_l + 3 ) * ( nzt_l - nzb + 2 ) |
---|
939 | |
---|
940 | #else |
---|
941 | message_string = 'multigrid gather/scatter impossible ' // & |
---|
942 | 'in non parallel mode' |
---|
943 | CALL message( 'init_pegrid', 'PA0237', 1, 2, 0, 6, 0 ) |
---|
944 | #endif |
---|
945 | ENDIF |
---|
946 | |
---|
947 | nxl_mg(i) = nxl_l |
---|
948 | nxr_mg(i) = nxr_l |
---|
949 | nys_mg(i) = nys_l |
---|
950 | nyn_mg(i) = nyn_l |
---|
951 | nzt_mg(i) = nzt_l |
---|
952 | |
---|
953 | nxl_l = nxl_l / 2 |
---|
954 | nxr_l = nxr_l / 2 |
---|
955 | nys_l = nys_l / 2 |
---|
956 | nyn_l = nyn_l / 2 |
---|
957 | nzt_l = nzt_l / 2 |
---|
958 | |
---|
959 | ENDDO |
---|
960 | |
---|
961 | ! |
---|
962 | !-- Temporary problem: Currently calculation of maxerror in routine poismg crashes if grid data |
---|
963 | !-- are collected on PE0 already on the finest grid level. |
---|
964 | !-- To be solved later. |
---|
965 | IF ( maximum_grid_level == mg_switch_to_pe0_level ) THEN |
---|
966 | message_string = 'grid coarsening on subdomain level cannot be performed' |
---|
967 | CALL message( 'poismg', 'PA0236', 1, 2, 0, 6, 0 ) |
---|
968 | ENDIF |
---|
969 | |
---|
970 | ELSE |
---|
971 | |
---|
972 | maximum_grid_level = 0 |
---|
973 | |
---|
974 | ENDIF |
---|
975 | |
---|
976 | ! |
---|
977 | !-- Default level 0 tells exchange_horiz that all ghost planes have to be exchanged. grid_level is |
---|
978 | !-- adjusted in poismg, where only one ghost plane is required. |
---|
979 | grid_level = 0 |
---|
980 | |
---|
981 | #if defined( __parallel ) |
---|
982 | ! |
---|
983 | !-- Gridpoint number for the exchange of ghost points (y-line for 2D-arrays) |
---|
984 | ngp_y = nyn - nys + 1 + 2 * nbgp |
---|
985 | |
---|
986 | ! |
---|
987 | !-- Define new MPI derived datatypes for the exchange of ghost points in x- and y-direction for |
---|
988 | !-- 2D-arrays (line) |
---|
989 | CALL MPI_TYPE_VECTOR( nxr-nxl+1+2*nbgp, nbgp, ngp_y, MPI_REAL, type_x, ierr ) |
---|
990 | CALL MPI_TYPE_COMMIT( type_x, ierr ) |
---|
991 | |
---|
992 | CALL MPI_TYPE_VECTOR( nbgp, ngp_y, ngp_y, MPI_REAL, type_y, ierr ) |
---|
993 | CALL MPI_TYPE_COMMIT( type_y, ierr ) |
---|
994 | ! |
---|
995 | !-- Define new MPI derived datatypes for the exchange of ghost points in x- and y-direction for |
---|
996 | !-- 2D-INTEGER arrays (line) - on normal grid. |
---|
997 | !-- Define types for 32-bit and 8-bit Integer. The 8-bit Integer are only required on normal grid, |
---|
998 | !-- while 32-bit Integer may be also required on coarser grid level in case of multigrid solver. |
---|
999 | ! |
---|
1000 | !-- 8-bit Integer |
---|
1001 | CALL MPI_TYPE_VECTOR( nxr-nxl+1+2*nbgp, nbgp, ngp_y, MPI_BYTE, type_x_byte, ierr ) |
---|
1002 | CALL MPI_TYPE_COMMIT( type_x_byte, ierr ) |
---|
1003 | |
---|
1004 | CALL MPI_TYPE_VECTOR( nbgp, ngp_y, ngp_y, MPI_BYTE, type_y_byte, ierr ) |
---|
1005 | CALL MPI_TYPE_COMMIT( type_y_byte, ierr ) |
---|
1006 | ! |
---|
1007 | !-- 32-bit Integer |
---|
1008 | ALLOCATE( type_x_int(0:maximum_grid_level), type_y_int(0:maximum_grid_level) ) |
---|
1009 | |
---|
1010 | CALL MPI_TYPE_VECTOR( nxr-nxl+1+2*nbgp, nbgp, ngp_y, MPI_INTEGER, type_x_int(0), ierr ) |
---|
1011 | CALL MPI_TYPE_COMMIT( type_x_int(0), ierr ) |
---|
1012 | |
---|
1013 | CALL MPI_TYPE_VECTOR( nbgp, ngp_y, ngp_y, MPI_INTEGER, type_y_int(0), ierr ) |
---|
1014 | CALL MPI_TYPE_COMMIT( type_y_int(0), ierr ) |
---|
1015 | ! |
---|
1016 | !-- Calculate gridpoint numbers for the exchange of ghost points along x (yz-plane for 3D-arrays) |
---|
1017 | !-- and define MPI derived data type(s) for the exchange of ghost points in y-direction (xz-plane). |
---|
1018 | !-- Do these calculations for the model grid and (if necessary) also for the coarser grid levels |
---|
1019 | !-- used in the multigrid method |
---|
1020 | ALLOCATE ( ngp_xz(0:maximum_grid_level), & |
---|
1021 | ngp_xz_int(0:maximum_grid_level), & |
---|
1022 | ngp_yz(0:maximum_grid_level), & |
---|
1023 | ngp_yz_int(0:maximum_grid_level), & |
---|
1024 | type_xz(0:maximum_grid_level), & |
---|
1025 | type_xz_int(0:maximum_grid_level), & |
---|
1026 | type_yz(0:maximum_grid_level), & |
---|
1027 | type_yz_int(0:maximum_grid_level) ) |
---|
1028 | |
---|
1029 | nxl_l = nxl; nxr_l = nxr; nys_l = nys; nyn_l = nyn; nzb_l = nzb; nzt_l = nzt |
---|
1030 | |
---|
1031 | ! |
---|
1032 | !-- Discern between the model grid, which needs nbgp ghost points and grid levels for the multigrid |
---|
1033 | !-- scheme. In the latter case only one ghost point is necessary. |
---|
1034 | !-- First definition of MPI-datatypes for exchange of ghost layers on normal grid. The following |
---|
1035 | !-- loop is needed for data exchange in poismg.f90. |
---|
1036 | ! |
---|
1037 | !-- Determine number of grid points of yz-layer for exchange |
---|
1038 | ngp_yz(0) = (nzt - nzb + 2) * (nyn - nys + 1 + 2 * nbgp) |
---|
1039 | |
---|
1040 | ! |
---|
1041 | !-- Define an MPI-datatype for the exchange of left/right boundaries. |
---|
1042 | !-- Although data are contiguous in physical memory (which does not necessarily require an |
---|
1043 | !-- MPI-derived datatype), the data exchange between left and right PE's using the MPI-derived type |
---|
1044 | !-- is 10% faster than without. |
---|
1045 | CALL MPI_TYPE_VECTOR( nxr-nxl+1+2*nbgp, nbgp*(nzt-nzb+2), ngp_yz(0), MPI_REAL, type_xz(0), & |
---|
1046 | ierr ) |
---|
1047 | CALL MPI_TYPE_COMMIT( type_xz(0), ierr ) |
---|
1048 | |
---|
1049 | CALL MPI_TYPE_VECTOR( nbgp, ngp_yz(0), ngp_yz(0), MPI_REAL, type_yz(0), ierr ) |
---|
1050 | CALL MPI_TYPE_COMMIT( type_yz(0), ierr ) |
---|
1051 | |
---|
1052 | ! |
---|
1053 | !-- Define data types for exchange of 3D Integer arrays. |
---|
1054 | ngp_yz_int(0) = (nzt - nzb + 2) * (nyn - nys + 1 + 2 * nbgp) |
---|
1055 | |
---|
1056 | CALL MPI_TYPE_VECTOR( nxr-nxl+1+2*nbgp, nbgp*(nzt-nzb+2), ngp_yz_int(0), MPI_INTEGER, & |
---|
1057 | type_xz_int(0), ierr ) |
---|
1058 | CALL MPI_TYPE_COMMIT( type_xz_int(0), ierr ) |
---|
1059 | |
---|
1060 | CALL MPI_TYPE_VECTOR( nbgp, ngp_yz_int(0), ngp_yz_int(0), MPI_INTEGER, type_yz_int(0), ierr ) |
---|
1061 | CALL MPI_TYPE_COMMIT( type_yz_int(0), ierr ) |
---|
1062 | |
---|
1063 | ! |
---|
1064 | !-- Definition of MPI-datatypes for multigrid method (coarser level grids) |
---|
1065 | IF ( psolver(1:9) == 'multigrid' ) THEN |
---|
1066 | ! |
---|
1067 | !-- Definition of MPI-datatyoe as above, but only 1 ghost level is used |
---|
1068 | DO i = maximum_grid_level, 1 , -1 |
---|
1069 | ! |
---|
1070 | !-- For 3D-exchange on different multigrid level, one ghost point for REAL arrays, two ghost |
---|
1071 | !-- points for INTEGER arrays |
---|
1072 | ngp_xz(i) = (nzt_l - nzb_l + 2) * (nxr_l - nxl_l + 3) |
---|
1073 | ngp_yz(i) = (nzt_l - nzb_l + 2) * (nyn_l - nys_l + 3) |
---|
1074 | |
---|
1075 | ngp_xz_int(i) = (nzt_l - nzb_l + 2) * (nxr_l - nxl_l + 3) |
---|
1076 | ngp_yz_int(i) = (nzt_l - nzb_l + 2) * (nyn_l - nys_l + 3) |
---|
1077 | ! |
---|
1078 | !-- MPI data type for REAL arrays, for xz-layers |
---|
1079 | CALL MPI_TYPE_VECTOR( nxr_l-nxl_l+3, nzt_l-nzb_l+2, ngp_yz(i), MPI_REAL, type_xz(i), & |
---|
1080 | ierr ) |
---|
1081 | CALL MPI_TYPE_COMMIT( type_xz(i), ierr ) |
---|
1082 | |
---|
1083 | ! |
---|
1084 | !-- MPI data type for INTEGER arrays, for xz-layers |
---|
1085 | CALL MPI_TYPE_VECTOR( nxr_l-nxl_l+3, nzt_l-nzb_l+2, ngp_yz_int(i), MPI_INTEGER, & |
---|
1086 | type_xz_int(i), ierr ) |
---|
1087 | CALL MPI_TYPE_COMMIT( type_xz_int(i), ierr ) |
---|
1088 | |
---|
1089 | ! |
---|
1090 | !-- MPI data type for REAL arrays, for yz-layers |
---|
1091 | CALL MPI_TYPE_VECTOR( 1, ngp_yz(i), ngp_yz(i), MPI_REAL, type_yz(i), ierr ) |
---|
1092 | CALL MPI_TYPE_COMMIT( type_yz(i), ierr ) |
---|
1093 | ! |
---|
1094 | !-- MPI data type for INTEGER arrays, for yz-layers |
---|
1095 | CALL MPI_TYPE_VECTOR( 1, ngp_yz_int(i), ngp_yz_int(i), MPI_INTEGER, type_yz_int(i), ierr ) |
---|
1096 | CALL MPI_TYPE_COMMIT( type_yz_int(i), ierr ) |
---|
1097 | |
---|
1098 | |
---|
1099 | !-- For 2D-exchange of INTEGER arrays on coarser grid level, where 2 ghost points need to be |
---|
1100 | !-- exchanged. Only required for 32-bit Integer arrays. |
---|
1101 | CALL MPI_TYPE_VECTOR( nxr_l-nxl_l+5, 2, nyn_l-nys_l+5, MPI_INTEGER, type_x_int(i), ierr ) |
---|
1102 | CALL MPI_TYPE_COMMIT( type_x_int(i), ierr ) |
---|
1103 | |
---|
1104 | |
---|
1105 | CALL MPI_TYPE_VECTOR( 2, nyn_l-nys_l+5, nyn_l-nys_l+5, MPI_INTEGER, type_y_int(i), ierr ) |
---|
1106 | CALL MPI_TYPE_COMMIT( type_y_int(i), ierr ) |
---|
1107 | |
---|
1108 | nxl_l = nxl_l / 2 |
---|
1109 | nxr_l = nxr_l / 2 |
---|
1110 | nys_l = nys_l / 2 |
---|
1111 | nyn_l = nyn_l / 2 |
---|
1112 | nzt_l = nzt_l / 2 |
---|
1113 | |
---|
1114 | ENDDO |
---|
1115 | |
---|
1116 | ENDIF |
---|
1117 | |
---|
1118 | #endif |
---|
1119 | |
---|
1120 | #if defined( __parallel ) |
---|
1121 | ! |
---|
1122 | !-- Setting of flags for inflow/outflow/nesting conditions. |
---|
1123 | IF ( pleft == MPI_PROC_NULL ) THEN |
---|
1124 | IF ( bc_lr == 'dirichlet/radiation' .OR. bc_lr == 'nested' .OR. & |
---|
1125 | bc_lr == 'nesting_offline' ) THEN |
---|
1126 | bc_dirichlet_l = .TRUE. |
---|
1127 | ELSEIF ( bc_lr == 'radiation/dirichlet' ) THEN |
---|
1128 | bc_radiation_l = .TRUE. |
---|
1129 | ENDIF |
---|
1130 | ENDIF |
---|
1131 | |
---|
1132 | IF ( pright == MPI_PROC_NULL ) THEN |
---|
1133 | IF ( bc_lr == 'dirichlet/radiation' ) THEN |
---|
1134 | bc_radiation_r = .TRUE. |
---|
1135 | ELSEIF ( bc_lr == 'radiation/dirichlet' .OR. bc_lr == 'nested' .OR. & |
---|
1136 | bc_lr == 'nesting_offline' ) THEN |
---|
1137 | bc_dirichlet_r = .TRUE. |
---|
1138 | ENDIF |
---|
1139 | ENDIF |
---|
1140 | |
---|
1141 | IF ( psouth == MPI_PROC_NULL ) THEN |
---|
1142 | IF ( bc_ns == 'dirichlet/radiation' ) THEN |
---|
1143 | bc_radiation_s = .TRUE. |
---|
1144 | ELSEIF ( bc_ns == 'radiation/dirichlet' .OR. bc_ns == 'nested' .OR. & |
---|
1145 | bc_ns == 'nesting_offline' ) THEN |
---|
1146 | bc_dirichlet_s = .TRUE. |
---|
1147 | ENDIF |
---|
1148 | ENDIF |
---|
1149 | |
---|
1150 | IF ( pnorth == MPI_PROC_NULL ) THEN |
---|
1151 | IF ( bc_ns == 'dirichlet/radiation' .OR. bc_ns == 'nested' .OR. & |
---|
1152 | bc_ns == 'nesting_offline' ) THEN |
---|
1153 | bc_dirichlet_n = .TRUE. |
---|
1154 | ELSEIF ( bc_ns == 'radiation/dirichlet' ) THEN |
---|
1155 | bc_radiation_n = .TRUE. |
---|
1156 | ENDIF |
---|
1157 | ENDIF |
---|
1158 | ! |
---|
1159 | !-- In case of synthetic turbulence geneartor determine ids. |
---|
1160 | !-- Please note, if no forcing or nesting is applied, the generator is applied only at the left |
---|
1161 | !-- lateral boundary. |
---|
1162 | IF ( syn_turb_gen ) THEN |
---|
1163 | IF ( bc_dirichlet_l ) THEN |
---|
1164 | id_stg_left_l = myidx |
---|
1165 | ELSE |
---|
1166 | id_stg_left_l = 0 |
---|
1167 | ENDIF |
---|
1168 | IF ( bc_dirichlet_r ) THEN |
---|
1169 | id_stg_right_l = myidx |
---|
1170 | ELSE |
---|
1171 | id_stg_right_l = 0 |
---|
1172 | ENDIF |
---|
1173 | IF ( bc_dirichlet_s ) THEN |
---|
1174 | id_stg_south_l = myidy |
---|
1175 | ELSE |
---|
1176 | id_stg_south_l = 0 |
---|
1177 | ENDIF |
---|
1178 | IF ( bc_dirichlet_n ) THEN |
---|
1179 | id_stg_north_l = myidy |
---|
1180 | ELSE |
---|
1181 | id_stg_north_l = 0 |
---|
1182 | ENDIF |
---|
1183 | |
---|
1184 | IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr ) |
---|
1185 | CALL MPI_ALLREDUCE( id_stg_left_l, id_stg_left, 1, MPI_INTEGER, MPI_SUM, comm1dx, ierr ) |
---|
1186 | |
---|
1187 | IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr ) |
---|
1188 | CALL MPI_ALLREDUCE( id_stg_right_l, id_stg_right, 1, MPI_INTEGER, MPI_SUM, comm1dx, ierr ) |
---|
1189 | |
---|
1190 | IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr ) |
---|
1191 | CALL MPI_ALLREDUCE( id_stg_south_l, id_stg_south, 1, MPI_INTEGER, MPI_SUM, comm1dy, ierr ) |
---|
1192 | |
---|
1193 | IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr ) |
---|
1194 | CALL MPI_ALLREDUCE( id_stg_north_l, id_stg_north, 1, MPI_INTEGER, MPI_SUM, comm1dy, ierr ) |
---|
1195 | |
---|
1196 | ENDIF |
---|
1197 | |
---|
1198 | ! |
---|
1199 | !-- Broadcast the id of the inflow PE |
---|
1200 | IF ( bc_dirichlet_l ) THEN |
---|
1201 | id_inflow_l = myidx |
---|
1202 | ELSE |
---|
1203 | id_inflow_l = 0 |
---|
1204 | ENDIF |
---|
1205 | IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr ) |
---|
1206 | CALL MPI_ALLREDUCE( id_inflow_l, id_inflow, 1, MPI_INTEGER, MPI_SUM, comm1dx, ierr ) |
---|
1207 | |
---|
1208 | ! |
---|
1209 | !-- Broadcast the id of the recycling plane |
---|
1210 | !-- WARNING: needs to be adjusted in case of inflows other than from left side! |
---|
1211 | IF ( turbulent_inflow ) THEN |
---|
1212 | |
---|
1213 | IF ( NINT( recycling_width / dx, KIND=idp ) >= nxl .AND. & |
---|
1214 | NINT( recycling_width / dx, KIND=idp ) <= nxr ) THEN |
---|
1215 | id_recycling_l = myidx |
---|
1216 | ELSE |
---|
1217 | id_recycling_l = 0 |
---|
1218 | ENDIF |
---|
1219 | IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr ) |
---|
1220 | CALL MPI_ALLREDUCE( id_recycling_l, id_recycling, 1, MPI_INTEGER, MPI_SUM, comm1dx, ierr ) |
---|
1221 | |
---|
1222 | ENDIF |
---|
1223 | |
---|
1224 | ! |
---|
1225 | !-- Broadcast the id of the outflow PE and outflow-source plane |
---|
1226 | IF ( turbulent_outflow ) THEN |
---|
1227 | |
---|
1228 | IF ( bc_radiation_r ) THEN |
---|
1229 | id_outflow_l = myidx |
---|
1230 | ELSE |
---|
1231 | id_outflow_l = 0 |
---|
1232 | ENDIF |
---|
1233 | IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr ) |
---|
1234 | CALL MPI_ALLREDUCE( id_outflow_l, id_outflow, 1, MPI_INTEGER, MPI_SUM, & |
---|
1235 | comm1dx, ierr ) |
---|
1236 | |
---|
1237 | IF ( NINT( outflow_source_plane / dx ) >= nxl .AND. & |
---|
1238 | NINT( outflow_source_plane / dx ) <= nxr ) THEN |
---|
1239 | id_outflow_source_l = myidx |
---|
1240 | ELSE |
---|
1241 | id_outflow_source_l = 0 |
---|
1242 | ENDIF |
---|
1243 | IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr ) |
---|
1244 | CALL MPI_ALLREDUCE( id_outflow_source_l, id_outflow_source, 1, MPI_INTEGER, MPI_SUM, & |
---|
1245 | comm1dx, ierr ) |
---|
1246 | |
---|
1247 | ENDIF |
---|
1248 | |
---|
1249 | CALL location_message( 'creating virtual PE grids + MPI derived data types', 'finished' ) |
---|
1250 | |
---|
1251 | #else |
---|
1252 | IF ( bc_lr == 'dirichlet/radiation' ) THEN |
---|
1253 | bc_dirichlet_l = .TRUE. |
---|
1254 | bc_radiation_r = .TRUE. |
---|
1255 | ELSEIF ( bc_lr == 'radiation/dirichlet' ) THEN |
---|
1256 | bc_radiation_l = .TRUE. |
---|
1257 | bc_dirichlet_r = .TRUE. |
---|
1258 | ENDIF |
---|
1259 | |
---|
1260 | IF ( bc_ns == 'dirichlet/radiation' ) THEN |
---|
1261 | bc_dirichlet_n = .TRUE. |
---|
1262 | bc_radiation_s = .TRUE. |
---|
1263 | ELSEIF ( bc_ns == 'radiation/dirichlet' ) THEN |
---|
1264 | bc_radiation_n = .TRUE. |
---|
1265 | bc_dirichlet_s = .TRUE. |
---|
1266 | ENDIF |
---|
1267 | #endif |
---|
1268 | |
---|
1269 | ! |
---|
1270 | !-- At the inflow or outflow, u or v, respectively, have to be calculated for one more grid point. |
---|
1271 | IF ( bc_dirichlet_l .OR. bc_radiation_l ) THEN |
---|
1272 | nxlu = nxl + 1 |
---|
1273 | ELSE |
---|
1274 | nxlu = nxl |
---|
1275 | ENDIF |
---|
1276 | IF ( bc_dirichlet_s .OR. bc_radiation_s ) THEN |
---|
1277 | nysv = nys + 1 |
---|
1278 | ELSE |
---|
1279 | nysv = nys |
---|
1280 | ENDIF |
---|
1281 | |
---|
1282 | ! |
---|
1283 | !-- Allocate wall flag arrays used in the multigrid solver |
---|
1284 | IF ( psolver(1:9) == 'multigrid' ) THEN |
---|
1285 | |
---|
1286 | DO i = maximum_grid_level, 1, -1 |
---|
1287 | |
---|
1288 | SELECT CASE ( i ) |
---|
1289 | |
---|
1290 | CASE ( 1 ) |
---|
1291 | ALLOCATE( wall_flags_1(nzb:nzt_mg(i)+1, & |
---|
1292 | nys_mg(i)-1:nyn_mg(i)+1, & |
---|
1293 | nxl_mg(i)-1:nxr_mg(i)+1) ) |
---|
1294 | |
---|
1295 | CASE ( 2 ) |
---|
1296 | ALLOCATE( wall_flags_2(nzb:nzt_mg(i)+1, & |
---|
1297 | nys_mg(i)-1:nyn_mg(i)+1, & |
---|
1298 | nxl_mg(i)-1:nxr_mg(i)+1) ) |
---|
1299 | |
---|
1300 | CASE ( 3 ) |
---|
1301 | ALLOCATE( wall_flags_3(nzb:nzt_mg(i)+1, & |
---|
1302 | nys_mg(i)-1:nyn_mg(i)+1, & |
---|
1303 | nxl_mg(i)-1:nxr_mg(i)+1) ) |
---|
1304 | |
---|
1305 | CASE ( 4 ) |
---|
1306 | ALLOCATE( wall_flags_4(nzb:nzt_mg(i)+1, & |
---|
1307 | nys_mg(i)-1:nyn_mg(i)+1, & |
---|
1308 | nxl_mg(i)-1:nxr_mg(i)+1) ) |
---|
1309 | |
---|
1310 | CASE ( 5 ) |
---|
1311 | ALLOCATE( wall_flags_5(nzb:nzt_mg(i)+1, & |
---|
1312 | nys_mg(i)-1:nyn_mg(i)+1, & |
---|
1313 | nxl_mg(i)-1:nxr_mg(i)+1) ) |
---|
1314 | |
---|
1315 | CASE ( 6 ) |
---|
1316 | ALLOCATE( wall_flags_6(nzb:nzt_mg(i)+1, & |
---|
1317 | nys_mg(i)-1:nyn_mg(i)+1, & |
---|
1318 | nxl_mg(i)-1:nxr_mg(i)+1) ) |
---|
1319 | |
---|
1320 | CASE ( 7 ) |
---|
1321 | ALLOCATE( wall_flags_7(nzb:nzt_mg(i)+1, & |
---|
1322 | nys_mg(i)-1:nyn_mg(i)+1, & |
---|
1323 | nxl_mg(i)-1:nxr_mg(i)+1) ) |
---|
1324 | |
---|
1325 | CASE ( 8 ) |
---|
1326 | ALLOCATE( wall_flags_8(nzb:nzt_mg(i)+1, & |
---|
1327 | nys_mg(i)-1:nyn_mg(i)+1, & |
---|
1328 | nxl_mg(i)-1:nxr_mg(i)+1) ) |
---|
1329 | |
---|
1330 | CASE ( 9 ) |
---|
1331 | ALLOCATE( wall_flags_9(nzb:nzt_mg(i)+1, & |
---|
1332 | nys_mg(i)-1:nyn_mg(i)+1, & |
---|
1333 | nxl_mg(i)-1:nxr_mg(i)+1) ) |
---|
1334 | |
---|
1335 | CASE ( 10 ) |
---|
1336 | ALLOCATE( wall_flags_10(nzb:nzt_mg(i)+1, & |
---|
1337 | nys_mg(i)-1:nyn_mg(i)+1, & |
---|
1338 | nxl_mg(i)-1:nxr_mg(i)+1) ) |
---|
1339 | |
---|
1340 | CASE DEFAULT |
---|
1341 | message_string = 'more than 10 multigrid levels' |
---|
1342 | CALL message( 'init_pegrid', 'PA0238', 1, 2, 0, 6, 0 ) |
---|
1343 | |
---|
1344 | END SELECT |
---|
1345 | |
---|
1346 | ENDDO |
---|
1347 | |
---|
1348 | ENDIF |
---|
1349 | |
---|
1350 | END SUBROUTINE init_pegrid |
---|