1 | !> @file poismg.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 1997-2020 Leibniz Universitaet Hannover |
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17 | !--------------------------------------------------------------------------------------------------! |
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18 | ! |
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19 | ! |
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20 | ! Current revisions: |
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21 | ! ----------------- |
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22 | ! |
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23 | ! |
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24 | ! Former revisions: |
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25 | ! ----------------- |
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26 | ! $Id: poismg_mod.f90 4649 2020-08-25 12:11:17Z raasch $ |
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27 | ! File re-formatted to follow the PALM coding standard |
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28 | ! |
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29 | ! |
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30 | ! 4457 2020-03-11 14:20:43Z raasch |
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31 | ! Use statement for exchange horiz added |
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32 | ! |
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33 | ! 4432 2020-02-28 07:43:21Z raasch |
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34 | ! Bugfix for previous revision (vector directive was changed by mistake) |
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35 | ! |
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36 | ! 4429 2020-02-27 15:24:30Z raasch |
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37 | ! Statement added to avoid compile error due to unused dummy argument |
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38 | ! Bugfix: cpp-directives added for serial mode |
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39 | ! |
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40 | ! 4360 2020-01-07 11:25:50Z suehring |
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41 | ! Corrected "Former revisions" section |
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42 | ! |
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43 | ! 3725 2019-02-07 10:11:02Z raasch |
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44 | ! Unused subroutine removed |
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45 | ! |
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46 | ! 3655 2019-01-07 16:51:22Z knoop |
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47 | ! Unnecessary check eliminated |
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48 | ! |
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49 | ! Following optimisations have been made: |
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50 | ! - Vectorisation (for Intel-CPUs) of the red-black algorithm by resorting array elements with even |
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51 | ! and odd indices |
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52 | ! - Explicit boundary conditions for building walls removed (solver is running through the |
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53 | ! buildings) |
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54 | ! - Reduced data transfer in case of ghost point exchange, because only "red" or "black" data points |
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55 | ! need to be exchanged. This is not applied for coarser grid levels, since for then the transfer |
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56 | ! time is latency bound |
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57 | ! |
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58 | ! |
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59 | !--------------------------------------------------------------------------------------------------! |
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60 | ! Description: |
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61 | ! ------------ |
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62 | !> Solves the Poisson equation for the perturbation pressure with a multigrid V- or W-Cycle scheme. |
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63 | !> |
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64 | !> This multigrid method was originally developed for PALM by Joerg Uhlenbrock, |
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65 | !> September 2000 - July 2001. It has been optimised for speed by Klaus Ketelsen in November 2014. |
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66 | !> |
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67 | !> @attention Loop unrolling and cache optimization in SOR-Red/Black method still does not give the |
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68 | ! expected speedup! |
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69 | !> |
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70 | !> @todo Further work required. |
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71 | !--------------------------------------------------------------------------------------------------! |
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72 | MODULE poismg_mod |
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73 | |
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74 | USE control_parameters, & |
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75 | ONLY: bc_dirichlet_l, & |
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76 | bc_dirichlet_n, & |
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77 | bc_dirichlet_r, & |
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78 | bc_dirichlet_s, & |
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79 | bc_radiation_l, & |
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80 | bc_radiation_n, & |
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81 | bc_radiation_r, & |
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82 | bc_radiation_s, & |
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83 | grid_level, & |
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84 | nesting_offline |
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85 | |
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86 | USE cpulog, & |
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87 | ONLY: cpu_log, & |
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88 | log_point_s |
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89 | |
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90 | USE exchange_horiz_mod, & |
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91 | ONLY: exchange_horiz |
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92 | |
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93 | USE kinds |
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94 | |
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95 | USE pegrid |
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96 | |
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97 | PRIVATE |
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98 | |
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99 | INTEGER, SAVE :: ind_even_odd !< border index between even and odd k index |
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100 | |
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101 | INTEGER, DIMENSION(:), SAVE, ALLOCATABLE :: even_odd_level !< stores ind_even_odd for all MG levels |
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102 | |
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103 | REAL(wp), DIMENSION(:,:), SAVE, ALLOCATABLE :: f1_mg_b, f2_mg_b, f3_mg_b !< blocked version of f1_mg ... |
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104 | |
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105 | INTERFACE poismg |
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106 | MODULE PROCEDURE poismg |
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107 | END INTERFACE poismg |
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108 | |
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109 | INTERFACE sort_k_to_even_odd_blocks |
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110 | MODULE PROCEDURE sort_k_to_even_odd_blocks |
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111 | ! MODULE PROCEDURE sort_k_to_even_odd_blocks_int |
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112 | MODULE PROCEDURE sort_k_to_even_odd_blocks_1d |
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113 | END INTERFACE sort_k_to_even_odd_blocks |
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114 | |
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115 | PUBLIC poismg |
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116 | |
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117 | CONTAINS |
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118 | |
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119 | !--------------------------------------------------------------------------------------------------! |
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120 | ! Description: |
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121 | ! ------------ |
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122 | !> Solves the Poisson equation for the perturbation pressure with a multigrid V- or W-Cycle scheme. |
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123 | !--------------------------------------------------------------------------------------------------! |
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124 | SUBROUTINE poismg( r ) |
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125 | |
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126 | USE arrays_3d, & |
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127 | ONLY: d, & |
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128 | p_loc |
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129 | |
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130 | USE control_parameters, & |
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131 | ONLY: bc_lr_cyc, & |
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132 | bc_ns_cyc, & |
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133 | gathered_size, & |
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134 | grid_level, & |
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135 | grid_level_count, & |
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136 | ibc_p_t, & |
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137 | maximum_grid_level, & |
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138 | message_string, & |
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139 | mgcycles, & |
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140 | mg_cycles, & |
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141 | mg_switch_to_pe0_level, & |
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142 | residual_limit, & |
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143 | subdomain_size |
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144 | |
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145 | USE cpulog, & |
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146 | ONLY: cpu_log, & |
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147 | log_point_s |
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148 | |
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149 | USE indices, & |
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150 | ONLY: nxl, & |
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151 | nxlg, & |
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152 | nxl_mg, & |
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153 | nxr, & |
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154 | nxrg, & |
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155 | nxr_mg, & |
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156 | nys, & |
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157 | nysg, & |
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158 | nys_mg, & |
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159 | nyn, & |
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160 | nyng, & |
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161 | nyn_mg, & |
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162 | nzb, & |
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163 | nzt, & |
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164 | nzt_mg |
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165 | |
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166 | IMPLICIT NONE |
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167 | |
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168 | REAL(wp) :: maxerror !< |
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169 | REAL(wp) :: maximum_mgcycles !< |
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170 | REAL(wp) :: residual_norm !< |
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171 | |
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172 | REAL(wp), DIMENSION(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) :: r !< |
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173 | |
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174 | REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: p3 !< |
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175 | |
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176 | |
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177 | CALL cpu_log( log_point_s(29), 'poismg', 'start' ) |
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178 | ! |
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179 | !-- Initialize arrays and variables used in this subroutine |
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180 | |
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181 | !-- If the number of grid points of the gathered grid, which is collected on PE0, is larger than the |
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182 | !-- number of grid points of a PE, than array p3 will be enlarged. |
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183 | IF ( gathered_size > subdomain_size ) THEN |
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184 | ALLOCATE( p3(nzb:nzt_mg(mg_switch_to_pe0_level)+1,nys_mg( & |
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185 | mg_switch_to_pe0_level)-1:nyn_mg(mg_switch_to_pe0_level)+1, & |
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186 | nxl_mg(mg_switch_to_pe0_level)-1:nxr_mg(mg_switch_to_pe0_level)+1) ) |
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187 | ELSE |
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188 | ALLOCATE ( p3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) ) |
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189 | ENDIF |
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190 | |
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191 | p3 = 0.0_wp |
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192 | |
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193 | |
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194 | ! |
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195 | !-- Ghost boundaries have to be added to divergence array. |
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196 | !-- Exchange routine needs to know the grid level! |
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197 | grid_level = maximum_grid_level |
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198 | CALL exchange_horiz( d, 1) |
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199 | ! |
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200 | !-- Set bottom and top boundary conditions |
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201 | d(nzb,:,:) = d(nzb+1,:,:) |
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202 | IF ( ibc_p_t == 1 ) d(nzt+1,:,: ) = d(nzt,:,:) |
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203 | ! |
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204 | !-- Set lateral boundary conditions in non-cyclic case |
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205 | IF ( .NOT. bc_lr_cyc ) THEN |
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206 | IF ( bc_dirichlet_l .OR. bc_radiation_l ) d(:,:,nxl-1) = d(:,:,nxl) |
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207 | IF ( bc_dirichlet_r .OR. bc_radiation_r ) d(:,:,nxr+1) = d(:,:,nxr) |
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208 | ENDIF |
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209 | IF ( .NOT. bc_ns_cyc ) THEN |
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210 | IF ( bc_dirichlet_n .OR. bc_radiation_n ) d(:,nyn+1,:) = d(:,nyn,:) |
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211 | IF ( bc_dirichlet_s .OR. bc_radiation_s ) d(:,nys-1,:) = d(:,nys,:) |
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212 | ENDIF |
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213 | ! |
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214 | !-- Initiation of the multigrid scheme. Does n cycles until the residual is smaller than the given |
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215 | !-- limit. The accuracy of the solution of the poisson equation will increase with the number of |
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216 | !-- cycles. If the number of cycles is preset by the user, this number will be carried out |
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217 | !-- regardless of the accuracy. |
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218 | grid_level_count = 0 |
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219 | mgcycles = 0 |
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220 | IF ( mg_cycles == -1 ) THEN |
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221 | maximum_mgcycles = 0 |
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222 | residual_norm = 1.0_wp |
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223 | ELSE |
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224 | maximum_mgcycles = mg_cycles |
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225 | residual_norm = 0.0_wp |
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226 | ENDIF |
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227 | |
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228 | ! |
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229 | !-- Initial settings for sorting k-dimension from sequential order (alternate even/odd) into blocks |
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230 | !-- of even and odd or vice versa |
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231 | CALL init_even_odd_blocks |
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232 | |
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233 | ! |
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234 | !-- Sort input arrays in even/odd blocks along k-dimension |
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235 | CALL sort_k_to_even_odd_blocks( d, grid_level ) |
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236 | CALL sort_k_to_even_odd_blocks( p_loc, grid_level ) |
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237 | |
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238 | ! |
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239 | !-- The complete multigrid cycles are running in block mode, i.e. over seperate data blocks of even |
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240 | !-- and odd indices |
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241 | DO WHILE ( residual_norm > residual_limit .OR. mgcycles < maximum_mgcycles ) |
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242 | |
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243 | CALL next_mg_level( d, p_loc, p3, r) |
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244 | |
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245 | ! |
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246 | !-- Calculate the residual if the user has not preset the number of cycles to be performed |
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247 | IF ( maximum_mgcycles == 0 ) THEN |
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248 | CALL resid( d, p_loc, r ) |
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249 | maxerror = SUM( r(nzb+1:nzt,nys:nyn,nxl:nxr)**2 ) |
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250 | |
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251 | #if defined( __parallel ) |
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252 | IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr ) |
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253 | CALL MPI_ALLREDUCE( maxerror, residual_norm, 1, MPI_REAL, MPI_SUM, comm2d, ierr) |
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254 | #else |
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255 | residual_norm = maxerror |
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256 | #endif |
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257 | residual_norm = SQRT( residual_norm ) |
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258 | ENDIF |
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259 | |
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260 | mgcycles = mgcycles + 1 |
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261 | |
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262 | ! |
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263 | !-- If the user has not limited the number of cycles, stop the run in case of insufficient |
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264 | !-- convergence |
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265 | IF ( mgcycles > 1000 .AND. mg_cycles == -1 ) THEN |
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266 | message_string = 'no sufficient convergence within 1000 cycles' |
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267 | CALL message( 'poismg', 'PA0283', 1, 2, 0, 6, 0 ) |
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268 | ENDIF |
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269 | |
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270 | ENDDO |
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271 | |
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272 | DEALLOCATE( p3 ) |
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273 | ! |
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274 | !-- Result has to be sorted back from even/odd blocks to sequential order |
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275 | CALL sort_k_to_sequential( p_loc ) |
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276 | ! |
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277 | !-- Unset the grid level. Variable is used to determine the MPI datatypes for ghost point exchange |
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278 | grid_level = 0 |
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279 | |
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280 | CALL cpu_log( log_point_s(29), 'poismg', 'stop' ) |
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281 | |
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282 | END SUBROUTINE poismg |
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283 | |
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284 | |
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285 | !--------------------------------------------------------------------------------------------------! |
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286 | ! Description: |
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287 | ! ------------ |
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288 | !> Computes the residual of the perturbation pressure. |
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289 | !--------------------------------------------------------------------------------------------------! |
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290 | SUBROUTINE resid( f_mg, p_mg, r ) |
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291 | |
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292 | |
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293 | USE arrays_3d, & |
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294 | ONLY: rho_air_mg |
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295 | |
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296 | USE control_parameters, & |
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297 | ONLY: bc_lr_cyc, & |
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298 | bc_ns_cyc, & |
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299 | ibc_p_b, & |
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300 | ibc_p_t |
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301 | |
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302 | USE grid_variables, & |
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303 | ONLY: ddx2_mg, & |
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304 | ddy2_mg |
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305 | |
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306 | USE indices, & |
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307 | ONLY: nxl_mg, & |
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308 | nxr_mg, & |
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309 | nys_mg, & |
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310 | nyn_mg, & |
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311 | nzb, & |
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312 | nzt_mg |
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313 | |
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314 | IMPLICIT NONE |
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315 | |
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316 | INTEGER(iwp) :: i !< index variable along x |
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317 | INTEGER(iwp) :: j !< index variable along y |
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318 | INTEGER(iwp) :: k !< index variable along z |
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319 | INTEGER(iwp) :: l !< index indicating grid level |
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320 | INTEGER(iwp) :: km1 !< index variable along z dimension (k-1) |
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321 | INTEGER(iwp) :: kp1 !< index variable along z dimension (k+1) |
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322 | |
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323 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1,nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
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324 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: f_mg !< velocity divergence |
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325 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1,nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
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326 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: p_mg !< perturbation pressure |
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327 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1,nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
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328 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: r !< residuum of perturbation pressure |
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329 | |
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330 | ! |
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331 | !-- Calculate the residual |
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332 | l = grid_level |
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333 | |
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334 | CALL cpu_log( log_point_s(53), 'resid', 'start' ) |
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335 | !$OMP PARALLEL PRIVATE (i,j,k,km1,kp1) |
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336 | !$OMP DO |
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337 | DO i = nxl_mg(l), nxr_mg(l) |
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338 | DO j = nys_mg(l), nyn_mg(l) |
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339 | !DIR$ IVDEP |
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340 | DO k = ind_even_odd+1, nzt_mg(l) |
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341 | km1 = k-ind_even_odd-1 |
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342 | kp1 = k-ind_even_odd |
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343 | r(k,j,i) = f_mg(k,j,i) - rho_air_mg(k,l) * ddx2_mg(l) & |
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344 | * ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
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345 | - rho_air_mg(k,l) * ddy2_mg(l) * ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
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346 | - f2_mg_b(k,l) * p_mg(kp1,j,i) - f3_mg_b(k,l) * p_mg(km1,j,i) & |
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347 | + f1_mg_b(k,l) * p_mg(k,j,i) |
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348 | ENDDO |
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349 | !DIR$ IVDEP |
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350 | DO k = nzb+1, ind_even_odd |
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351 | km1 = k+ind_even_odd |
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352 | kp1 = k+ind_even_odd+1 |
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353 | r(k,j,i) = f_mg(k,j,i) - rho_air_mg(k,l) * ddx2_mg(l) & |
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354 | * ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) - rho_air_mg(k,l) * ddy2_mg(l) & |
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355 | * ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) - f2_mg_b(k,l) * p_mg(kp1,j,i) & |
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356 | - f3_mg_b(k,l) * p_mg(km1,j,i) + f1_mg_b(k,l) * p_mg(k,j,i) |
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357 | ENDDO |
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358 | ENDDO |
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359 | ENDDO |
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360 | !$OMP END PARALLEL |
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361 | ! |
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362 | !-- Horizontal boundary conditions |
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363 | CALL exchange_horiz( r, 1) |
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364 | |
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365 | IF ( .NOT. bc_lr_cyc ) THEN |
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366 | IF ( bc_dirichlet_l .OR. bc_radiation_l ) THEN |
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367 | r(:,:,nxl_mg(l)-1) = r(:,:,nxl_mg(l)) |
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368 | ENDIF |
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369 | IF ( bc_dirichlet_r .OR. bc_radiation_r ) THEN |
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370 | r(:,:,nxr_mg(l)+1) = r(:,:,nxr_mg(l)) |
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371 | ENDIF |
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372 | ENDIF |
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373 | |
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374 | IF ( .NOT. bc_ns_cyc ) THEN |
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375 | IF ( bc_dirichlet_n .OR. bc_radiation_n ) THEN |
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376 | r(:,nyn_mg(l)+1,:) = r(:,nyn_mg(l),:) |
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377 | ENDIF |
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378 | IF ( bc_dirichlet_s .OR. bc_radiation_s ) THEN |
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379 | r(:,nys_mg(l)-1,:) = r(:,nys_mg(l),:) |
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380 | ENDIF |
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381 | ENDIF |
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382 | |
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383 | ! |
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384 | !-- Boundary conditions at bottom and top of the domain. Points may be within buildings, but that |
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385 | !-- doesn't matter. |
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386 | IF ( ibc_p_b == 1 ) THEN |
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387 | ! |
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388 | !-- Equivalent to r(nzb,:,: ) = r(nzb+1,:,:) |
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389 | r(nzb,:,: ) = r(ind_even_odd+1,:,:) |
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390 | ELSE |
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391 | r(nzb,:,: ) = 0.0_wp |
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392 | ENDIF |
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393 | |
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394 | IF ( ibc_p_t == 1 ) THEN |
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395 | ! |
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396 | !-- Equivalent to r(nzt_mg(l)+1,:,: ) = r(nzt_mg(l),:,:) |
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397 | r(nzt_mg(l)+1,:,: ) = r(ind_even_odd,:,:) |
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398 | ELSE |
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399 | r(nzt_mg(l)+1,:,: ) = 0.0_wp |
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400 | ENDIF |
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401 | |
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402 | CALL cpu_log( log_point_s(53), 'resid', 'stop' ) |
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403 | |
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404 | END SUBROUTINE resid |
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405 | |
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406 | |
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407 | !--------------------------------------------------------------------------------------------------! |
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408 | ! Description: |
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409 | ! ------------ |
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410 | !> Interpolates the residual on the next coarser grid with "full weighting" scheme |
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411 | !--------------------------------------------------------------------------------------------------! |
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412 | SUBROUTINE restrict( f_mg, r ) |
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413 | |
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414 | |
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415 | USE control_parameters, & |
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416 | ONLY: bc_lr_cyc, & |
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417 | bc_ns_cyc, & |
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418 | ibc_p_b, & |
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419 | ibc_p_t |
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420 | |
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421 | USE indices, & |
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422 | ONLY: nxl_mg, & |
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423 | nxr_mg, & |
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424 | nys_mg, & |
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425 | nyn_mg, & |
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426 | nzb, & |
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427 | nzt_mg |
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428 | |
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429 | IMPLICIT NONE |
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430 | |
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431 | INTEGER(iwp) :: i !< index variable along x on finer grid |
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432 | INTEGER(iwp) :: ic !< index variable along x on coarser grid |
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433 | INTEGER(iwp) :: j !< index variable along y on finer grid |
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434 | INTEGER(iwp) :: jc !< index variable along y on coarser grid |
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435 | INTEGER(iwp) :: k !< index variable along z on finer grid |
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436 | INTEGER(iwp) :: kc !< index variable along z on coarser grid |
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437 | INTEGER(iwp) :: l !< index indicating finer grid level |
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438 | INTEGER(iwp) :: km1 !< index variable along z dimension (k-1 on finer level) |
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439 | INTEGER(iwp) :: kp1 !< index variable along z dimension (k+1 on finer level) |
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440 | |
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441 | |
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442 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1,nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
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443 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: f_mg !< Residual on coarser grid level |
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444 | |
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445 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level+1)+1,nys_mg(grid_level+1)-1:nyn_mg(grid_level+1)+1, & |
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446 | nxl_mg(grid_level+1)-1:nxr_mg(grid_level+1)+1) :: r !< Residual on finer grid level |
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447 | |
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448 | ! |
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449 | !-- Interpolate the residual |
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450 | l = grid_level |
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451 | |
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452 | CALL cpu_log( log_point_s(54), 'restrict', 'start' ) |
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453 | ! |
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454 | !-- No wall treatment |
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455 | !$OMP PARALLEL PRIVATE (i,j,k,ic,jc,kc,km1,kp1) |
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456 | !$OMP DO SCHEDULE( STATIC ) |
---|
457 | DO ic = nxl_mg(l), nxr_mg(l) |
---|
458 | i = 2 * ic |
---|
459 | DO jc = nys_mg(l), nyn_mg(l) |
---|
460 | ! |
---|
461 | !-- Calculation for the first point along k |
---|
462 | j = 2 * jc |
---|
463 | ! |
---|
464 | !-- Calculation for the other points along k |
---|
465 | !DIR$ IVDEP |
---|
466 | DO k = ind_even_odd+1, nzt_mg(l+1) ! Fine grid at this point |
---|
467 | km1 = k-ind_even_odd-1 |
---|
468 | kp1 = k-ind_even_odd |
---|
469 | kc = k-ind_even_odd ! Coarse grid index |
---|
470 | |
---|
471 | f_mg(kc,jc,ic) = 1.0_wp / 64.0_wp & |
---|
472 | * ( 8.0_wp * r(k,j,i) + 4.0_wp * ( r(k,j,i-1) + r(k,j,i+1) & |
---|
473 | + r(k,j+1,i) + r(k,j-1,i) ) & |
---|
474 | + 2.0_wp * ( r(k,j-1,i-1) + r(k,j+1,i-1) & |
---|
475 | + r(k,j-1,i+1) + r(k,j+1,i+1) ) & |
---|
476 | + 4.0_wp * r(km1,j,i) & |
---|
477 | + 2.0_wp * ( r(km1,j,i-1) + r(km1,j,i+1) & |
---|
478 | + r(km1,j+1,i) + r(km1,j-1,i) ) & |
---|
479 | + ( r(km1,j-1,i-1) + r(km1,j+1,i-1) & |
---|
480 | + r(km1,j-1,i+1) + r(km1,j+1,i+1) ) & |
---|
481 | + 4.0_wp * r(kp1,j,i) & |
---|
482 | + 2.0_wp * ( r(kp1,j,i-1) + r(kp1,j,i+1) & |
---|
483 | + r(kp1,j+1,i) + r(kp1,j-1,i) ) & |
---|
484 | + ( r(kp1,j-1,i-1) + r(kp1,j+1,i-1) & |
---|
485 | + r(kp1,j-1,i+1) + r(kp1,j+1,i+1) ) & |
---|
486 | ) |
---|
487 | ENDDO |
---|
488 | ENDDO |
---|
489 | ENDDO |
---|
490 | !$OMP ENDDO |
---|
491 | !$OMP END PARALLEL |
---|
492 | |
---|
493 | ! |
---|
494 | !-- Ghost point exchange |
---|
495 | CALL exchange_horiz( f_mg, 1) |
---|
496 | ! |
---|
497 | !-- Horizontal boundary conditions |
---|
498 | IF ( .NOT. bc_lr_cyc ) THEN |
---|
499 | IF ( bc_dirichlet_l .OR. bc_radiation_l ) THEN |
---|
500 | f_mg(:,:,nxl_mg(l)-1) = f_mg(:,:,nxl_mg(l)) |
---|
501 | ENDIF |
---|
502 | IF ( bc_dirichlet_r .OR. bc_radiation_r ) THEN |
---|
503 | f_mg(:,:,nxr_mg(l)+1) = f_mg(:,:,nxr_mg(l)) |
---|
504 | ENDIF |
---|
505 | ENDIF |
---|
506 | |
---|
507 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
508 | IF ( bc_dirichlet_n .OR. bc_radiation_n ) THEN |
---|
509 | f_mg(:,nyn_mg(l)+1,:) = f_mg(:,nyn_mg(l),:) |
---|
510 | ENDIF |
---|
511 | IF ( bc_dirichlet_s .OR. bc_radiation_s ) THEN |
---|
512 | f_mg(:,nys_mg(l)-1,:) = f_mg(:,nys_mg(l),:) |
---|
513 | ENDIF |
---|
514 | ENDIF |
---|
515 | |
---|
516 | ! |
---|
517 | !-- Boundary conditions at bottom and top of the domain. These points are not handled by the above |
---|
518 | !-- loop. Points may be within buildings, but that doesn't matter. Remark: f_mg is ordered |
---|
519 | !-- sequentielly after interpolation on coarse grid (is ordered in odd-even blocks further below). |
---|
520 | IF ( ibc_p_b == 1 ) THEN |
---|
521 | f_mg(nzb,:,: ) = f_mg(nzb+1,:,:) |
---|
522 | ELSE |
---|
523 | f_mg(nzb,:,: ) = 0.0_wp |
---|
524 | ENDIF |
---|
525 | |
---|
526 | IF ( ibc_p_t == 1 ) THEN |
---|
527 | f_mg(nzt_mg(l)+1,:,: ) = f_mg(nzt_mg(l),:,:) |
---|
528 | ELSE |
---|
529 | f_mg(nzt_mg(l)+1,:,: ) = 0.0_wp |
---|
530 | ENDIF |
---|
531 | |
---|
532 | CALL cpu_log( log_point_s(54), 'restrict', 'stop' ) |
---|
533 | ! |
---|
534 | !-- Since residual is in sequential order after interpolation, an additional sorting in odd-even |
---|
535 | !-- blocks along z dimension is required at this point. |
---|
536 | CALL sort_k_to_even_odd_blocks( f_mg , l) |
---|
537 | |
---|
538 | END SUBROUTINE restrict |
---|
539 | |
---|
540 | |
---|
541 | !--------------------------------------------------------------------------------------------------! |
---|
542 | ! Description: |
---|
543 | ! ------------ |
---|
544 | !> Interpolates the correction of the perturbation pressure to the next finer grid. |
---|
545 | !--------------------------------------------------------------------------------------------------! |
---|
546 | SUBROUTINE prolong( p, temp ) |
---|
547 | |
---|
548 | |
---|
549 | USE control_parameters, & |
---|
550 | ONLY: bc_lr_cyc, & |
---|
551 | bc_ns_cyc, & |
---|
552 | ibc_p_b, & |
---|
553 | ibc_p_t |
---|
554 | USE indices, & |
---|
555 | ONLY: nxl_mg, & |
---|
556 | nxr_mg, & |
---|
557 | nys_mg, & |
---|
558 | nyn_mg, & |
---|
559 | nzb, & |
---|
560 | nzt_mg |
---|
561 | |
---|
562 | IMPLICIT NONE |
---|
563 | |
---|
564 | INTEGER(iwp) :: i !< index variable along x on coarser grid level |
---|
565 | INTEGER(iwp) :: j !< index variable along y on coarser grid level |
---|
566 | INTEGER(iwp) :: k !< index variable along z on coarser grid level |
---|
567 | INTEGER(iwp) :: l !< index indicating finer grid level |
---|
568 | INTEGER(iwp) :: kp1 !< index variable along z |
---|
569 | INTEGER(iwp) :: ke !< index for prolog even |
---|
570 | INTEGER(iwp) :: ko !< index for prolog odd |
---|
571 | |
---|
572 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level-1)+1,nys_mg(grid_level-1)-1:nyn_mg(grid_level-1)+1, & |
---|
573 | nxl_mg(grid_level-1)-1:nxr_mg(grid_level-1)+1 ) :: p !< perturbation pressure on coarser grid level |
---|
574 | |
---|
575 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1,nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
576 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: temp !< perturbation pressure on finer grid level |
---|
577 | |
---|
578 | |
---|
579 | CALL cpu_log( log_point_s(55), 'prolong', 'start' ) |
---|
580 | |
---|
581 | ! |
---|
582 | !-- First, store elements of the coarser grid on the next finer grid |
---|
583 | l = grid_level |
---|
584 | ind_even_odd = even_odd_level(grid_level-1) |
---|
585 | |
---|
586 | !$OMP PARALLEL PRIVATE (i,j,k,kp1,ke,ko) |
---|
587 | !$OMP DO |
---|
588 | DO i = nxl_mg(l-1), nxr_mg(l-1) |
---|
589 | DO j = nys_mg(l-1), nyn_mg(l-1) |
---|
590 | |
---|
591 | !DIR$ IVDEP |
---|
592 | DO k = ind_even_odd+1, nzt_mg(l-1) |
---|
593 | kp1 = k - ind_even_odd |
---|
594 | ke = 2 * ( k-ind_even_odd - 1 ) + 1 |
---|
595 | ko = 2 * k - 1 |
---|
596 | ! |
---|
597 | !-- Points of the coarse grid are directly stored on the next finer grid |
---|
598 | temp(ko,2*j,2*i) = p(k,j,i) |
---|
599 | ! |
---|
600 | !-- Points between two coarse-grid points |
---|
601 | temp(ko,2*j,2*i+1) = 0.5_wp * ( p(k,j,i) + p(k,j,i+1) ) |
---|
602 | temp(ko,2*j+1,2*i) = 0.5_wp * ( p(k,j,i) + p(k,j+1,i) ) |
---|
603 | temp(ke,2*j,2*i) = 0.5_wp * ( p(k,j,i) + p(kp1,j,i) ) |
---|
604 | ! |
---|
605 | !-- Points in the center of the planes stretched by four points of the coarse grid cube |
---|
606 | temp(ko,2*j+1,2*i+1) = 0.25_wp * ( p(k,j,i) + p(k,j,i+1) + & |
---|
607 | p(k,j+1,i) + p(k,j+1,i+1) ) |
---|
608 | temp(ke,2*j,2*i+1) = 0.25_wp * ( p(k,j,i) + p(k,j,i+1) + & |
---|
609 | p(kp1,j,i) + p(kp1,j,i+1) ) |
---|
610 | temp(ke,2*j+1,2*i) = 0.25_wp * ( p(k,j,i) + p(k,j+1,i) + & |
---|
611 | p(kp1,j,i) + p(kp1,j+1,i) ) |
---|
612 | ! |
---|
613 | !-- Points in the middle of coarse grid cube |
---|
614 | temp(ke,2*j+1,2*i+1) = 0.125_wp * ( p(k,j,i) + p(k,j,i+1) + p(k,j+1,i) & |
---|
615 | + p(k,j+1,i+1) + p(kp1,j,i) + p(kp1,j,i+1) & |
---|
616 | + p(kp1,j+1,i) + p(kp1,j+1,i+1) ) |
---|
617 | |
---|
618 | ENDDO |
---|
619 | |
---|
620 | !DIR$ IVDEP |
---|
621 | DO k = nzb+1, ind_even_odd |
---|
622 | kp1 = k + ind_even_odd + 1 |
---|
623 | ke = 2 * k |
---|
624 | ko = 2 * ( k + ind_even_odd ) |
---|
625 | ! |
---|
626 | !-- Points of the coarse grid are directly stored on the next finer grid |
---|
627 | temp(ko,2*j,2*i) = p(k,j,i) |
---|
628 | ! |
---|
629 | !-- Points between two coarse-grid points |
---|
630 | temp(ko,2*j,2*i+1) = 0.5_wp * ( p(k,j,i) + p(k,j,i+1) ) |
---|
631 | temp(ko,2*j+1,2*i) = 0.5_wp * ( p(k,j,i) + p(k,j+1,i) ) |
---|
632 | temp(ke,2*j,2*i) = 0.5_wp * ( p(k,j,i) + p(kp1,j,i) ) |
---|
633 | ! |
---|
634 | !-- Points in the center of the planes stretched by four points |
---|
635 | !-- of the coarse grid cube |
---|
636 | temp(ko,2*j+1,2*i+1) = 0.25_wp * ( p(k,j,i) + p(k,j,i+1) + & |
---|
637 | p(k,j+1,i) + p(k,j+1,i+1) ) |
---|
638 | temp(ke,2*j,2*i+1) = 0.25_wp * ( p(k,j,i) + p(k,j,i+1) + & |
---|
639 | p(kp1,j,i) + p(kp1,j,i+1) ) |
---|
640 | temp(ke,2*j+1,2*i) = 0.25_wp * ( p(k,j,i) + p(k,j+1,i) + & |
---|
641 | p(kp1,j,i) + p(kp1,j+1,i) ) |
---|
642 | ! |
---|
643 | !-- Points in the middle of coarse grid cube |
---|
644 | temp(ke,2*j+1,2*i+1) = 0.125_wp * ( p(k,j,i) + p(k,j,i+1) + p(k,j+1,i) & |
---|
645 | + p(k,j+1,i+1) + p(kp1,j,i) + p(kp1,j,i+1) & |
---|
646 | + p(kp1,j+1,i) + p(kp1,j+1,i+1) ) |
---|
647 | |
---|
648 | ENDDO |
---|
649 | |
---|
650 | ENDDO |
---|
651 | ENDDO |
---|
652 | !$OMP END PARALLEL |
---|
653 | |
---|
654 | ind_even_odd = even_odd_level(grid_level) |
---|
655 | ! |
---|
656 | !-- Horizontal boundary conditions |
---|
657 | CALL exchange_horiz( temp, 1) |
---|
658 | |
---|
659 | IF ( .NOT. bc_lr_cyc ) THEN |
---|
660 | IF ( bc_dirichlet_l .OR. bc_radiation_l ) THEN |
---|
661 | temp(:,:,nxl_mg(l)-1) = temp(:,:,nxl_mg(l)) |
---|
662 | ENDIF |
---|
663 | IF ( bc_dirichlet_r .OR. bc_radiation_r ) THEN |
---|
664 | temp(:,:,nxr_mg(l)+1) = temp(:,:,nxr_mg(l)) |
---|
665 | ENDIF |
---|
666 | ENDIF |
---|
667 | |
---|
668 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
669 | IF ( bc_dirichlet_n .OR. bc_radiation_n ) THEN |
---|
670 | temp(:,nyn_mg(l)+1,:) = temp(:,nyn_mg(l),:) |
---|
671 | ENDIF |
---|
672 | IF ( bc_dirichlet_s .OR. bc_radiation_s ) THEN |
---|
673 | temp(:,nys_mg(l)-1,:) = temp(:,nys_mg(l),:) |
---|
674 | ENDIF |
---|
675 | ENDIF |
---|
676 | |
---|
677 | ! |
---|
678 | !-- Bottom and top boundary conditions |
---|
679 | IF ( ibc_p_b == 1 ) THEN |
---|
680 | ! |
---|
681 | !-- Equivalent to temp(nzb,:,: ) = temp(nzb+1,:,:) |
---|
682 | temp(nzb,:,: ) = temp(ind_even_odd+1,:,:) |
---|
683 | ELSE |
---|
684 | temp(nzb,:,: ) = 0.0_wp |
---|
685 | ENDIF |
---|
686 | |
---|
687 | IF ( ibc_p_t == 1 ) THEN |
---|
688 | ! |
---|
689 | !-- Equivalent to temp(nzt_mg(l)+1,:,: ) = temp(nzt_mg(l),:,:) |
---|
690 | temp(nzt_mg(l)+1,:,: ) = temp(ind_even_odd,:,:) |
---|
691 | ELSE |
---|
692 | temp(nzt_mg(l)+1,:,: ) = 0.0_wp |
---|
693 | ENDIF |
---|
694 | |
---|
695 | CALL cpu_log( log_point_s(55), 'prolong', 'stop' ) |
---|
696 | |
---|
697 | END SUBROUTINE prolong |
---|
698 | |
---|
699 | |
---|
700 | !--------------------------------------------------------------------------------------------------! |
---|
701 | ! Description: |
---|
702 | ! ------------ |
---|
703 | !> Relaxation method for the multigrid scheme. A Gauss-Seidel iteration with 3D-Red-Black |
---|
704 | !> decomposition (GS-RB) is used. |
---|
705 | !--------------------------------------------------------------------------------------------------! |
---|
706 | SUBROUTINE redblack( f_mg, p_mg ) |
---|
707 | |
---|
708 | |
---|
709 | USE arrays_3d, & |
---|
710 | ONLY: rho_air_mg |
---|
711 | |
---|
712 | USE control_parameters, & |
---|
713 | ONLY: bc_lr_cyc, & |
---|
714 | bc_ns_cyc, & |
---|
715 | ibc_p_b, & |
---|
716 | ibc_p_t, & |
---|
717 | ngsrb |
---|
718 | |
---|
719 | USE grid_variables, & |
---|
720 | ONLY: ddx2_mg, & |
---|
721 | ddy2_mg |
---|
722 | |
---|
723 | USE indices, & |
---|
724 | ONLY: nxl_mg, & |
---|
725 | nxr_mg, & |
---|
726 | nys_mg, & |
---|
727 | nyn_mg, & |
---|
728 | nzb, & |
---|
729 | nzt_mg |
---|
730 | |
---|
731 | IMPLICIT NONE |
---|
732 | |
---|
733 | INTEGER(iwp) :: color !< grid point color, either red or black |
---|
734 | INTEGER(iwp) :: i !< index variable along x |
---|
735 | INTEGER(iwp) :: ic !< index variable along x |
---|
736 | INTEGER(iwp) :: j !< index variable along y |
---|
737 | INTEGER(iwp) :: jc !< index variable along y |
---|
738 | INTEGER(iwp) :: jj !< index variable along y |
---|
739 | INTEGER(iwp) :: k !< index variable along z |
---|
740 | INTEGER(iwp) :: km1 !< index variable (k-1) |
---|
741 | INTEGER(iwp) :: kp1 !< index variable (k+1) |
---|
742 | INTEGER(iwp) :: l !< grid level |
---|
743 | INTEGER(iwp) :: n !< loop variable GauÃ-Seidel iterations |
---|
744 | |
---|
745 | |
---|
746 | LOGICAL :: unroll !< flag indicating whether loop unrolling is possible |
---|
747 | |
---|
748 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1,nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
749 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: f_mg !< residual of perturbation pressure |
---|
750 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1,nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
751 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: p_mg !< perturbation pressure |
---|
752 | |
---|
753 | l = grid_level |
---|
754 | |
---|
755 | unroll = ( MOD( nyn_mg(l)-nys_mg(l)+1, 4 ) == 0 .AND. MOD( nxr_mg(l)-nxl_mg(l)+1, 2 ) == 0 ) |
---|
756 | |
---|
757 | DO n = 1, ngsrb |
---|
758 | |
---|
759 | DO color = 1, 2 |
---|
760 | |
---|
761 | IF ( .NOT. unroll ) THEN |
---|
762 | |
---|
763 | CALL cpu_log( log_point_s(36), 'redblack_no_unroll_f', 'start' ) |
---|
764 | ! |
---|
765 | !-- Without unrolling of loops, no cache optimization |
---|
766 | !$OMP PARALLEL PRIVATE (i,j,k,km1,kp1) |
---|
767 | !$OMP DO |
---|
768 | DO i = nxl_mg(l), nxr_mg(l), 2 |
---|
769 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
---|
770 | !DIR$ IVDEP |
---|
771 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
772 | km1 = k-ind_even_odd-1 |
---|
773 | kp1 = k-ind_even_odd |
---|
774 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) & |
---|
775 | * ( rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
776 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
777 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
778 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
779 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
780 | + f3_mg_b(k,l) * p_mg(km1,j,i) - f_mg(k,j,i) & |
---|
781 | ) |
---|
782 | ENDDO |
---|
783 | ENDDO |
---|
784 | ENDDO |
---|
785 | |
---|
786 | !$OMP DO |
---|
787 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
---|
788 | DO j = nys_mg(l) + (color-1), nyn_mg(l), 2 |
---|
789 | !DIR$ IVDEP |
---|
790 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
791 | km1 = k-ind_even_odd-1 |
---|
792 | kp1 = k-ind_even_odd |
---|
793 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
794 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
795 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
796 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
797 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
798 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
799 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
800 | - f_mg(k,j,i) ) |
---|
801 | ENDDO |
---|
802 | ENDDO |
---|
803 | ENDDO |
---|
804 | |
---|
805 | !$OMP DO |
---|
806 | DO i = nxl_mg(l), nxr_mg(l), 2 |
---|
807 | DO j = nys_mg(l) + (color-1), nyn_mg(l), 2 |
---|
808 | !DIR$ IVDEP |
---|
809 | DO k = nzb+1, ind_even_odd |
---|
810 | km1 = k+ind_even_odd |
---|
811 | kp1 = k+ind_even_odd+1 |
---|
812 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
813 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
814 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
815 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
816 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
817 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
818 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
819 | - f_mg(k,j,i) ) |
---|
820 | ENDDO |
---|
821 | ENDDO |
---|
822 | ENDDO |
---|
823 | |
---|
824 | !$OMP DO |
---|
825 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
---|
826 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
---|
827 | !DIR$ IVDEP |
---|
828 | DO k = nzb+1, ind_even_odd |
---|
829 | km1 = k+ind_even_odd |
---|
830 | kp1 = k+ind_even_odd+1 |
---|
831 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
832 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
833 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
834 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
835 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
836 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
837 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
838 | - f_mg(k,j,i) ) |
---|
839 | ENDDO |
---|
840 | ENDDO |
---|
841 | ENDDO |
---|
842 | !$OMP END PARALLEL |
---|
843 | |
---|
844 | CALL cpu_log( log_point_s(36), 'redblack_no_unroll_f', 'stop' ) |
---|
845 | |
---|
846 | ELSE |
---|
847 | ! |
---|
848 | !-- Loop unrolling along y, only one i loop for better cache use |
---|
849 | CALL cpu_log( log_point_s(38), 'redblack_unroll_f', 'start' ) |
---|
850 | |
---|
851 | !$OMP PARALLEL PRIVATE (i,j,k,ic,jc,km1,kp1,jj) |
---|
852 | !$OMP DO |
---|
853 | DO ic = nxl_mg(l), nxr_mg(l), 2 |
---|
854 | DO jc = nys_mg(l), nyn_mg(l), 4 |
---|
855 | i = ic |
---|
856 | jj = jc+2-color |
---|
857 | !DIR$ IVDEP |
---|
858 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
859 | km1 = k-ind_even_odd-1 |
---|
860 | kp1 = k-ind_even_odd |
---|
861 | j = jj |
---|
862 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
863 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
864 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
865 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
866 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
867 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
868 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
869 | - f_mg(k,j,i) ) |
---|
870 | |
---|
871 | j = jj+2 |
---|
872 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
873 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
874 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
875 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
876 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
877 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
878 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
879 | - f_mg(k,j,i) ) |
---|
880 | ENDDO |
---|
881 | |
---|
882 | i = ic+1 |
---|
883 | jj = jc+color-1 |
---|
884 | !DIR$ IVDEP |
---|
885 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
886 | km1 = k-ind_even_odd-1 |
---|
887 | kp1 = k-ind_even_odd |
---|
888 | j = jj |
---|
889 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
890 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
891 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
892 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
893 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
894 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
895 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
896 | - f_mg(k,j,i) ) |
---|
897 | |
---|
898 | j = jj+2 |
---|
899 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
900 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
901 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
902 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
903 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
904 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
905 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
906 | - f_mg(k,j,i) ) |
---|
907 | ENDDO |
---|
908 | |
---|
909 | i = ic |
---|
910 | jj = jc+color-1 |
---|
911 | !DIR$ IVDEP |
---|
912 | DO k = nzb+1, ind_even_odd |
---|
913 | km1 = k+ind_even_odd |
---|
914 | kp1 = k+ind_even_odd+1 |
---|
915 | j = jj |
---|
916 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
917 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
918 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
919 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
920 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
921 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
922 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
923 | - f_mg(k,j,i) ) |
---|
924 | |
---|
925 | j = jj+2 |
---|
926 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
927 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
928 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
929 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
930 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
931 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
932 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
933 | - f_mg(k,j,i) ) |
---|
934 | ENDDO |
---|
935 | |
---|
936 | i = ic+1 |
---|
937 | jj = jc+2-color |
---|
938 | !DIR$ IVDEP |
---|
939 | DO k = nzb+1, ind_even_odd |
---|
940 | km1 = k+ind_even_odd |
---|
941 | kp1 = k+ind_even_odd+1 |
---|
942 | j = jj |
---|
943 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
944 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
945 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
946 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
947 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
948 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
949 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
950 | - f_mg(k,j,i) ) |
---|
951 | |
---|
952 | j = jj+2 |
---|
953 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
954 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
955 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
956 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
957 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
958 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
959 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
960 | - f_mg(k,j,i) ) |
---|
961 | ENDDO |
---|
962 | |
---|
963 | ENDDO |
---|
964 | ENDDO |
---|
965 | !$OMP END PARALLEL |
---|
966 | |
---|
967 | CALL cpu_log( log_point_s(38), 'redblack_unroll_f', 'stop' ) |
---|
968 | |
---|
969 | ENDIF |
---|
970 | |
---|
971 | ! |
---|
972 | !-- Horizontal boundary conditions |
---|
973 | CALL special_exchange_horiz( p_mg, color ) |
---|
974 | |
---|
975 | IF ( .NOT. bc_lr_cyc ) THEN |
---|
976 | IF ( bc_dirichlet_l .OR. bc_radiation_l ) THEN |
---|
977 | p_mg(:,:,nxl_mg(l)-1) = p_mg(:,:,nxl_mg(l)) |
---|
978 | ENDIF |
---|
979 | IF ( bc_dirichlet_r .OR. bc_radiation_r ) THEN |
---|
980 | p_mg(:,:,nxr_mg(l)+1) = p_mg(:,:,nxr_mg(l)) |
---|
981 | ENDIF |
---|
982 | ENDIF |
---|
983 | |
---|
984 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
985 | IF ( bc_dirichlet_n .OR. bc_radiation_n ) THEN |
---|
986 | p_mg(:,nyn_mg(l)+1,:) = p_mg(:,nyn_mg(l),:) |
---|
987 | ENDIF |
---|
988 | IF ( bc_dirichlet_s .OR. bc_radiation_s ) THEN |
---|
989 | p_mg(:,nys_mg(l)-1,:) = p_mg(:,nys_mg(l),:) |
---|
990 | ENDIF |
---|
991 | ENDIF |
---|
992 | |
---|
993 | ! |
---|
994 | !-- Bottom and top boundary conditions |
---|
995 | IF ( ibc_p_b == 1 ) THEN |
---|
996 | ! |
---|
997 | !-- Equivalent to p_mg(nzb,:,: ) = p_mg(nzb+1,:,:) |
---|
998 | p_mg(nzb,:,: ) = p_mg(ind_even_odd+1,:,:) |
---|
999 | ELSE |
---|
1000 | p_mg(nzb,:,: ) = 0.0_wp |
---|
1001 | ENDIF |
---|
1002 | |
---|
1003 | IF ( ibc_p_t == 1 ) THEN |
---|
1004 | ! |
---|
1005 | !-- Equivalent to p_mg(nzt_mg(l)+1,:,: ) = p_mg(nzt_mg(l),:,:) |
---|
1006 | p_mg(nzt_mg(l)+1,:,: ) = p_mg(ind_even_odd,:,:) |
---|
1007 | ELSE |
---|
1008 | p_mg(nzt_mg(l)+1,:,: ) = 0.0_wp |
---|
1009 | ENDIF |
---|
1010 | |
---|
1011 | ENDDO |
---|
1012 | |
---|
1013 | ENDDO |
---|
1014 | |
---|
1015 | END SUBROUTINE redblack |
---|
1016 | |
---|
1017 | |
---|
1018 | !--------------------------------------------------------------------------------------------------! |
---|
1019 | ! Description: |
---|
1020 | ! ------------ |
---|
1021 | !> Sort k-dimension from sequential into blocks of even and odd. This is required to vectorize the |
---|
1022 | !> red-black subroutine. Version for 3D-REAL arrays |
---|
1023 | !--------------------------------------------------------------------------------------------------! |
---|
1024 | SUBROUTINE sort_k_to_even_odd_blocks( p_mg , glevel ) |
---|
1025 | |
---|
1026 | |
---|
1027 | USE indices, & |
---|
1028 | ONLY: nxl_mg, & |
---|
1029 | nxr_mg, & |
---|
1030 | nys_mg, & |
---|
1031 | nyn_mg, & |
---|
1032 | nzb, & |
---|
1033 | nzt_mg |
---|
1034 | |
---|
1035 | IMPLICIT NONE |
---|
1036 | |
---|
1037 | INTEGER(iwp), INTENT(IN) :: glevel !< grid level |
---|
1038 | |
---|
1039 | REAL(wp), DIMENSION(nzb:nzt_mg(glevel)+1,nys_mg(glevel)-1:nyn_mg(glevel)+1, & |
---|
1040 | nxl_mg(glevel)-1:nxr_mg(glevel)+1) :: p_mg !< array to be sorted |
---|
1041 | ! |
---|
1042 | !-- Local variables |
---|
1043 | INTEGER(iwp) :: i !< index variable along x |
---|
1044 | INTEGER(iwp) :: ind !< index variable along z |
---|
1045 | INTEGER(iwp) :: j !< index variable along y |
---|
1046 | INTEGER(iwp) :: k !< index variable along z |
---|
1047 | INTEGER(iwp) :: l !< grid level |
---|
1048 | |
---|
1049 | REAL(wp), DIMENSION(nzb:nzt_mg(glevel)+1) :: tmp !< odd-even sorted temporary array |
---|
1050 | |
---|
1051 | |
---|
1052 | CALL cpu_log( log_point_s(52), 'sort_k_to_even_odd', 'start' ) |
---|
1053 | |
---|
1054 | l = glevel |
---|
1055 | ind_even_odd = even_odd_level(l) |
---|
1056 | |
---|
1057 | !$OMP PARALLEL PRIVATE (i,j,k,ind,tmp) |
---|
1058 | !$OMP DO |
---|
1059 | DO i = nxl_mg(l)-1, nxr_mg(l)+1 |
---|
1060 | DO j = nys_mg(l)-1, nyn_mg(l)+1 |
---|
1061 | |
---|
1062 | ! |
---|
1063 | !-- Sort the data with even k index |
---|
1064 | ind = nzb-1 |
---|
1065 | DO k = nzb, nzt_mg(l), 2 |
---|
1066 | ind = ind + 1 |
---|
1067 | tmp(ind) = p_mg(k,j,i) |
---|
1068 | ENDDO |
---|
1069 | ! |
---|
1070 | !-- Sort the data with odd k index |
---|
1071 | DO k = nzb+1, nzt_mg(l)+1, 2 |
---|
1072 | ind = ind + 1 |
---|
1073 | tmp(ind) = p_mg(k,j,i) |
---|
1074 | ENDDO |
---|
1075 | |
---|
1076 | p_mg(:,j,i) = tmp |
---|
1077 | |
---|
1078 | ENDDO |
---|
1079 | ENDDO |
---|
1080 | !$OMP END PARALLEL |
---|
1081 | |
---|
1082 | CALL cpu_log( log_point_s(52), 'sort_k_to_even_odd', 'stop' ) |
---|
1083 | |
---|
1084 | END SUBROUTINE sort_k_to_even_odd_blocks |
---|
1085 | |
---|
1086 | |
---|
1087 | !--------------------------------------------------------------------------------------------------! |
---|
1088 | ! Description: |
---|
1089 | ! ------------ |
---|
1090 | !> Sort k-dimension from sequential into blocks of even and odd. This is required to vectorize the |
---|
1091 | !> red-black subroutine. Version for 1D-REAL arrays |
---|
1092 | !--------------------------------------------------------------------------------------------------! |
---|
1093 | SUBROUTINE sort_k_to_even_odd_blocks_1d( f_mg, f_mg_b, glevel ) |
---|
1094 | |
---|
1095 | |
---|
1096 | USE indices, & |
---|
1097 | ONLY: nzb, & |
---|
1098 | nzt_mg |
---|
1099 | |
---|
1100 | IMPLICIT NONE |
---|
1101 | |
---|
1102 | INTEGER(iwp), INTENT(IN) :: glevel !< grid level |
---|
1103 | |
---|
1104 | REAL(wp), DIMENSION(nzb+1:nzt_mg(glevel)) :: f_mg !< 1D input array |
---|
1105 | REAL(wp), DIMENSION(nzb:nzt_mg(glevel)+1) :: f_mg_b !< 1D output array |
---|
1106 | |
---|
1107 | ! |
---|
1108 | !-- Local variables |
---|
1109 | INTEGER(iwp) :: ind !< index variable along z |
---|
1110 | INTEGER(iwp) :: k !< index variable along z |
---|
1111 | |
---|
1112 | |
---|
1113 | ind = nzb - 1 |
---|
1114 | ! |
---|
1115 | !-- Sort the data with even k index |
---|
1116 | DO k = nzb, nzt_mg(glevel), 2 |
---|
1117 | ind = ind + 1 |
---|
1118 | IF ( k >= nzb+1 .AND. k <= nzt_mg(glevel) ) THEN |
---|
1119 | f_mg_b(ind) = f_mg(k) |
---|
1120 | ENDIF |
---|
1121 | ENDDO |
---|
1122 | ! |
---|
1123 | !-- Sort the data with odd k index |
---|
1124 | DO k = nzb+1, nzt_mg(glevel)+1, 2 |
---|
1125 | ind = ind + 1 |
---|
1126 | IF( k >= nzb+1 .AND. k <= nzt_mg(glevel) ) THEN |
---|
1127 | f_mg_b(ind) = f_mg(k) |
---|
1128 | ENDIF |
---|
1129 | ENDDO |
---|
1130 | |
---|
1131 | END SUBROUTINE sort_k_to_even_odd_blocks_1d |
---|
1132 | |
---|
1133 | |
---|
1134 | !--------------------------------------------------------------------------------------------------! |
---|
1135 | ! Description: |
---|
1136 | ! ------------ |
---|
1137 | !> Sort k-dimension from sequential into blocks of even and odd. This is required to vectorize the |
---|
1138 | !> red-black subroutine. Version for 2D-INTEGER arrays |
---|
1139 | !--------------------------------------------------------------------------------------------------! |
---|
1140 | ! SUBROUTINE sort_k_to_even_odd_blocks_int( i_mg , glevel ) |
---|
1141 | ! |
---|
1142 | ! |
---|
1143 | ! USE indices, & |
---|
1144 | ! ONLY: nxl_mg, nxr_mg, nys_mg, nyn_mg, nzb, nzt_mg |
---|
1145 | ! |
---|
1146 | ! IMPLICIT NONE |
---|
1147 | ! |
---|
1148 | ! INTEGER(iwp), INTENT(IN) :: glevel !< grid level |
---|
1149 | ! |
---|
1150 | ! INTEGER(iwp), DIMENSION(nzb:nzt_mg(glevel)+1, & |
---|
1151 | ! nys_mg(glevel)-1:nyn_mg(glevel)+1, & |
---|
1152 | ! nxl_mg(glevel)-1:nxr_mg(glevel)+1) :: & |
---|
1153 | ! i_mg !< array to be sorted |
---|
1154 | !! |
---|
1155 | !!-- Local variables |
---|
1156 | ! INTEGER(iwp) :: i !< index variabel along x |
---|
1157 | ! INTEGER(iwp) :: j !< index variable along y |
---|
1158 | ! INTEGER(iwp) :: k !< index variable along z |
---|
1159 | ! INTEGER(iwp) :: l !< grid level |
---|
1160 | ! INTEGER(iwp) :: ind !< index variable along z |
---|
1161 | ! INTEGER(iwp),DIMENSION(nzb:nzt_mg(glevel)+1) :: tmp !< temporary odd-even sorted array |
---|
1162 | ! |
---|
1163 | ! |
---|
1164 | ! CALL cpu_log( log_point_s(52), 'sort_k_to_even_odd', 'start' ) |
---|
1165 | ! |
---|
1166 | ! l = glevel |
---|
1167 | ! ind_even_odd = even_odd_level(l) |
---|
1168 | ! |
---|
1169 | ! DO i = nxl_mg(l)-1, nxr_mg(l)+1 |
---|
1170 | ! DO j = nys_mg(l)-1, nyn_mg(l)+1 |
---|
1171 | ! |
---|
1172 | ! |
---|
1173 | !-- Sort the data with even k index |
---|
1174 | ! ind = nzb-1 |
---|
1175 | ! DO k = nzb, nzt_mg(l), 2 |
---|
1176 | ! ind = ind + 1 |
---|
1177 | ! tmp(ind) = i_mg(k,j,i) |
---|
1178 | ! ENDDO |
---|
1179 | ! |
---|
1180 | !-- Sort the data with odd k index |
---|
1181 | ! DO k = nzb+1, nzt_mg(l)+1, 2 |
---|
1182 | ! ind = ind + 1 |
---|
1183 | ! tmp(ind) = i_mg(k,j,i) |
---|
1184 | ! ENDDO |
---|
1185 | ! |
---|
1186 | ! i_mg(:,j,i) = tmp |
---|
1187 | ! |
---|
1188 | ! ENDDO |
---|
1189 | ! ENDDO |
---|
1190 | ! |
---|
1191 | ! CALL cpu_log( log_point_s(52), 'sort_k_to_even_odd', 'stop' ) |
---|
1192 | ! |
---|
1193 | ! END SUBROUTINE sort_k_to_even_odd_blocks_int |
---|
1194 | |
---|
1195 | |
---|
1196 | !--------------------------------------------------------------------------------------------------! |
---|
1197 | ! Description: |
---|
1198 | ! ------------ |
---|
1199 | !> Sort k-dimension from blocks of even and odd into sequential |
---|
1200 | !--------------------------------------------------------------------------------------------------! |
---|
1201 | SUBROUTINE sort_k_to_sequential( p_mg ) |
---|
1202 | |
---|
1203 | |
---|
1204 | USE control_parameters, & |
---|
1205 | ONLY: grid_level |
---|
1206 | |
---|
1207 | USE indices, & |
---|
1208 | ONLY: nxl_mg, & |
---|
1209 | nxr_mg, & |
---|
1210 | nys_mg, & |
---|
1211 | nyn_mg, & |
---|
1212 | nzb, & |
---|
1213 | nzt_mg |
---|
1214 | |
---|
1215 | IMPLICIT NONE |
---|
1216 | |
---|
1217 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1,nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
1218 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: p_mg !< array to be sorted |
---|
1219 | ! |
---|
1220 | !-- Local variables |
---|
1221 | INTEGER(iwp) :: i !< index variable along x |
---|
1222 | INTEGER(iwp) :: j !< index variable along y |
---|
1223 | INTEGER(iwp) :: k !< index variable along z |
---|
1224 | INTEGER(iwp) :: l !< grid level |
---|
1225 | INTEGER(iwp) :: ind !< index variable along z |
---|
1226 | |
---|
1227 | REAL(wp),DIMENSION(nzb:nzt_mg(grid_level)+1) :: tmp !< |
---|
1228 | |
---|
1229 | |
---|
1230 | l = grid_level |
---|
1231 | |
---|
1232 | !$OMP PARALLEL PRIVATE (i,j,k,ind,tmp) |
---|
1233 | !$OMP DO |
---|
1234 | DO i = nxl_mg(l)-1, nxr_mg(l)+1 |
---|
1235 | DO j = nys_mg(l)-1, nyn_mg(l)+1 |
---|
1236 | |
---|
1237 | ind = nzb - 1 |
---|
1238 | tmp = p_mg(:,j,i) |
---|
1239 | DO k = nzb, nzt_mg(l), 2 |
---|
1240 | ind = ind + 1 |
---|
1241 | p_mg(k,j,i) = tmp(ind) |
---|
1242 | ENDDO |
---|
1243 | |
---|
1244 | DO k = nzb+1, nzt_mg(l)+1, 2 |
---|
1245 | ind = ind + 1 |
---|
1246 | p_mg(k,j,i) = tmp(ind) |
---|
1247 | ENDDO |
---|
1248 | ENDDO |
---|
1249 | ENDDO |
---|
1250 | !$OMP END PARALLEL |
---|
1251 | |
---|
1252 | END SUBROUTINE sort_k_to_sequential |
---|
1253 | |
---|
1254 | |
---|
1255 | !--------------------------------------------------------------------------------------------------! |
---|
1256 | ! Description: |
---|
1257 | ! ------------ |
---|
1258 | !> Gather subdomain data from all PEs. |
---|
1259 | !--------------------------------------------------------------------------------------------------! |
---|
1260 | #if defined( __parallel ) |
---|
1261 | SUBROUTINE mg_gather( f2, f2_sub ) |
---|
1262 | |
---|
1263 | USE control_parameters, & |
---|
1264 | ONLY: grid_level |
---|
1265 | |
---|
1266 | USE cpulog, & |
---|
1267 | ONLY: cpu_log, & |
---|
1268 | log_point_s |
---|
1269 | |
---|
1270 | USE indices, & |
---|
1271 | ONLY: mg_loc_ind, & |
---|
1272 | nxl_mg, & |
---|
1273 | nxr_mg, & |
---|
1274 | nys_mg, & |
---|
1275 | nyn_mg, & |
---|
1276 | nzb, & |
---|
1277 | nzt_mg |
---|
1278 | |
---|
1279 | IMPLICIT NONE |
---|
1280 | |
---|
1281 | INTEGER(iwp) :: i !< |
---|
1282 | INTEGER(iwp) :: il !< |
---|
1283 | INTEGER(iwp) :: ir !< |
---|
1284 | INTEGER(iwp) :: j !< |
---|
1285 | INTEGER(iwp) :: jn !< |
---|
1286 | INTEGER(iwp) :: js !< |
---|
1287 | INTEGER(iwp) :: k !< |
---|
1288 | INTEGER(iwp) :: nwords !< |
---|
1289 | |
---|
1290 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1,nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
1291 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: f2 !< |
---|
1292 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1,nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
1293 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: f2_l !< |
---|
1294 | |
---|
1295 | REAL(wp), DIMENSION(nzb:mg_loc_ind(5,myid)+1,mg_loc_ind(3,myid)-1:mg_loc_ind(4,myid)+1, & |
---|
1296 | mg_loc_ind(1,myid)-1:mg_loc_ind(2,myid)+1) :: f2_sub !< |
---|
1297 | |
---|
1298 | |
---|
1299 | CALL cpu_log( log_point_s(34), 'mg_gather', 'start' ) |
---|
1300 | |
---|
1301 | f2_l = 0.0_wp |
---|
1302 | |
---|
1303 | ! |
---|
1304 | !-- Store the local subdomain array on the total array |
---|
1305 | js = mg_loc_ind(3,myid) |
---|
1306 | IF ( south_border_pe ) js = js - 1 |
---|
1307 | jn = mg_loc_ind(4,myid) |
---|
1308 | IF ( north_border_pe ) jn = jn + 1 |
---|
1309 | il = mg_loc_ind(1,myid) |
---|
1310 | IF ( left_border_pe ) il = il - 1 |
---|
1311 | ir = mg_loc_ind(2,myid) |
---|
1312 | IF ( right_border_pe ) ir = ir + 1 |
---|
1313 | DO i = il, ir |
---|
1314 | DO j = js, jn |
---|
1315 | DO k = nzb, nzt_mg(grid_level)+1 |
---|
1316 | f2_l(k,j,i) = f2_sub(k,j,i) |
---|
1317 | ENDDO |
---|
1318 | ENDDO |
---|
1319 | ENDDO |
---|
1320 | |
---|
1321 | ! |
---|
1322 | !-- Find out the number of array elements of the total array |
---|
1323 | nwords = SIZE( f2 ) |
---|
1324 | |
---|
1325 | ! |
---|
1326 | !-- Gather subdomain data from all PEs |
---|
1327 | IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr ) |
---|
1328 | CALL MPI_ALLREDUCE( f2_l(nzb,nys_mg(grid_level)-1,nxl_mg(grid_level)-1), & |
---|
1329 | f2(nzb,nys_mg(grid_level)-1,nxl_mg(grid_level)-1), nwords, MPI_REAL, & |
---|
1330 | MPI_SUM, comm2d, ierr ) |
---|
1331 | |
---|
1332 | CALL cpu_log( log_point_s(34), 'mg_gather', 'stop' ) |
---|
1333 | |
---|
1334 | END SUBROUTINE mg_gather |
---|
1335 | #endif |
---|
1336 | |
---|
1337 | |
---|
1338 | !--------------------------------------------------------------------------------------------------! |
---|
1339 | ! Description: |
---|
1340 | ! ------------ |
---|
1341 | !> @todo It might be possible to improve the speed of this routine by using non-blocking |
---|
1342 | !> communication |
---|
1343 | !--------------------------------------------------------------------------------------------------! |
---|
1344 | #if defined( __parallel ) |
---|
1345 | SUBROUTINE mg_scatter( p2, p2_sub ) |
---|
1346 | |
---|
1347 | USE control_parameters, & |
---|
1348 | ONLY: grid_level |
---|
1349 | |
---|
1350 | USE cpulog, & |
---|
1351 | ONLY: cpu_log, & |
---|
1352 | log_point_s |
---|
1353 | |
---|
1354 | USE indices, & |
---|
1355 | ONLY: mg_loc_ind, & |
---|
1356 | nxl_mg, & |
---|
1357 | nxr_mg, & |
---|
1358 | nys_mg, & |
---|
1359 | nyn_mg, & |
---|
1360 | nzb, & |
---|
1361 | nzt_mg |
---|
1362 | |
---|
1363 | IMPLICIT NONE |
---|
1364 | |
---|
1365 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level-1)+1,nys_mg(grid_level-1)-1:nyn_mg(grid_level-1)+1, & |
---|
1366 | nxl_mg(grid_level-1)-1:nxr_mg(grid_level-1)+1) :: p2 !< |
---|
1367 | |
---|
1368 | REAL(wp), DIMENSION(nzb:mg_loc_ind(5,myid)+1,mg_loc_ind(3,myid)-1:mg_loc_ind(4,myid)+1, & |
---|
1369 | mg_loc_ind(1,myid)-1:mg_loc_ind(2,myid)+1) :: p2_sub !< |
---|
1370 | |
---|
1371 | |
---|
1372 | CALL cpu_log( log_point_s(35), 'mg_scatter', 'start' ) |
---|
1373 | |
---|
1374 | p2_sub = p2(:,mg_loc_ind(3,myid)-1:mg_loc_ind(4,myid)+1, & |
---|
1375 | mg_loc_ind(1,myid)-1:mg_loc_ind(2,myid)+1) |
---|
1376 | |
---|
1377 | CALL cpu_log( log_point_s(35), 'mg_scatter', 'stop' ) |
---|
1378 | |
---|
1379 | END SUBROUTINE mg_scatter |
---|
1380 | #endif |
---|
1381 | |
---|
1382 | !--------------------------------------------------------------------------------------------------! |
---|
1383 | ! Description: |
---|
1384 | ! ------------ |
---|
1385 | !> This is where the multigrid technique takes place. V- and W- Cycle are implemented and steered by |
---|
1386 | !> the parameter "gamma". Parameter "nue" determines the convergence of the multigrid iterative |
---|
1387 | !> solution. There are nue times RB-GS iterations. It should be set to "1" or "2", considering the |
---|
1388 | !> time effort one would like to invest. Last choice shows a very good converging factor, but leads |
---|
1389 | !> to an increase in computing time. |
---|
1390 | !--------------------------------------------------------------------------------------------------! |
---|
1391 | RECURSIVE SUBROUTINE next_mg_level( f_mg, p_mg, p3, r ) |
---|
1392 | |
---|
1393 | USE control_parameters, & |
---|
1394 | ONLY: bc_lr_dirrad, & |
---|
1395 | bc_lr_raddir, & |
---|
1396 | bc_ns_dirrad, & |
---|
1397 | bc_ns_raddir, & |
---|
1398 | child_domain, & |
---|
1399 | gamma_mg, & |
---|
1400 | grid_level_count, & |
---|
1401 | maximum_grid_level, & |
---|
1402 | mg_switch_to_pe0_level, & |
---|
1403 | mg_switch_to_pe0, & |
---|
1404 | ngsrb |
---|
1405 | |
---|
1406 | USE indices, & |
---|
1407 | ONLY: mg_loc_ind, & |
---|
1408 | nxl, & |
---|
1409 | nxl_mg, & |
---|
1410 | nxr, & |
---|
1411 | nxr_mg, & |
---|
1412 | nys, & |
---|
1413 | nys_mg, & |
---|
1414 | nyn, & |
---|
1415 | nyn_mg, & |
---|
1416 | nzb, & |
---|
1417 | nzt, & |
---|
1418 | nzt_mg |
---|
1419 | |
---|
1420 | IMPLICIT NONE |
---|
1421 | |
---|
1422 | INTEGER(iwp) :: i !< index variable along x |
---|
1423 | INTEGER(iwp) :: j !< index variable along y |
---|
1424 | INTEGER(iwp) :: k !< index variable along z |
---|
1425 | INTEGER(iwp) :: nxl_mg_save !< |
---|
1426 | INTEGER(iwp) :: nxr_mg_save !< |
---|
1427 | INTEGER(iwp) :: nyn_mg_save !< |
---|
1428 | INTEGER(iwp) :: nys_mg_save !< |
---|
1429 | INTEGER(iwp) :: nzt_mg_save !< |
---|
1430 | |
---|
1431 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1,nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
1432 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: f_mg !< |
---|
1433 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1,nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
1434 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: p_mg !< |
---|
1435 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1,nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
1436 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: p3 !< |
---|
1437 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1,nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
1438 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: r !< |
---|
1439 | |
---|
1440 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level-1)+1,nys_mg(grid_level-1)-1:nyn_mg(grid_level-1)+1, & |
---|
1441 | nxl_mg(grid_level-1)-1:nxr_mg(grid_level-1)+1) :: f2 !< |
---|
1442 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level-1)+1,nys_mg(grid_level-1)-1:nyn_mg(grid_level-1)+1, & |
---|
1443 | nxl_mg(grid_level-1)-1:nxr_mg(grid_level-1)+1) :: p2 !< |
---|
1444 | |
---|
1445 | REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: f2_sub !< |
---|
1446 | |
---|
1447 | #if defined( __parallel ) |
---|
1448 | REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: p2_sub !< |
---|
1449 | #endif |
---|
1450 | |
---|
1451 | ! |
---|
1452 | !-- Restriction to the coarsest grid |
---|
1453 | 10 IF ( grid_level == 1 ) THEN |
---|
1454 | |
---|
1455 | ! |
---|
1456 | !-- Solution on the coarsest grid. Double the number of Gauss-Seidel iterations in order to get a |
---|
1457 | !-- more accurate solution. |
---|
1458 | ngsrb = 2 * ngsrb |
---|
1459 | |
---|
1460 | ind_even_odd = even_odd_level(grid_level) |
---|
1461 | |
---|
1462 | CALL redblack( f_mg, p_mg ) |
---|
1463 | |
---|
1464 | ngsrb = ngsrb / 2 |
---|
1465 | |
---|
1466 | |
---|
1467 | ELSEIF ( grid_level /= 1 ) THEN |
---|
1468 | |
---|
1469 | grid_level_count(grid_level) = grid_level_count(grid_level) + 1 |
---|
1470 | |
---|
1471 | ! |
---|
1472 | !-- Solution on the actual grid level |
---|
1473 | ind_even_odd = even_odd_level(grid_level) |
---|
1474 | |
---|
1475 | CALL redblack( f_mg, p_mg ) |
---|
1476 | |
---|
1477 | ! |
---|
1478 | !-- Determination of the actual residual |
---|
1479 | CALL resid( f_mg, p_mg, r ) |
---|
1480 | |
---|
1481 | !-- Restriction of the residual (finer grid values!) to the next coarser grid. Therefore, the |
---|
1482 | !-- grid level has to be decremented now. nxl..nzt have to be set to the coarse grid values, |
---|
1483 | !-- because these variables are needed for the exchange of ghost points in routine exchange_horiz |
---|
1484 | grid_level = grid_level - 1 |
---|
1485 | |
---|
1486 | nxl = nxl_mg(grid_level) |
---|
1487 | nys = nys_mg(grid_level) |
---|
1488 | nxr = nxr_mg(grid_level) |
---|
1489 | nyn = nyn_mg(grid_level) |
---|
1490 | nzt = nzt_mg(grid_level) |
---|
1491 | |
---|
1492 | IF ( grid_level == mg_switch_to_pe0_level ) THEN |
---|
1493 | |
---|
1494 | ! |
---|
1495 | !-- From this level on, calculations are done on PE0 only. First, carry out restriction on the |
---|
1496 | !-- subdomain. Therefore, indices of the level have to be changed to subdomain values in |
---|
1497 | !-- between (otherwise, the restrict routine would expect the gathered array). |
---|
1498 | |
---|
1499 | nxl_mg_save = nxl_mg(grid_level) |
---|
1500 | nxr_mg_save = nxr_mg(grid_level) |
---|
1501 | nys_mg_save = nys_mg(grid_level) |
---|
1502 | nyn_mg_save = nyn_mg(grid_level) |
---|
1503 | nzt_mg_save = nzt_mg(grid_level) |
---|
1504 | nxl_mg(grid_level) = mg_loc_ind(1,myid) |
---|
1505 | nxr_mg(grid_level) = mg_loc_ind(2,myid) |
---|
1506 | nys_mg(grid_level) = mg_loc_ind(3,myid) |
---|
1507 | nyn_mg(grid_level) = mg_loc_ind(4,myid) |
---|
1508 | nzt_mg(grid_level) = mg_loc_ind(5,myid) |
---|
1509 | nxl = mg_loc_ind(1,myid) |
---|
1510 | nxr = mg_loc_ind(2,myid) |
---|
1511 | nys = mg_loc_ind(3,myid) |
---|
1512 | nyn = mg_loc_ind(4,myid) |
---|
1513 | nzt = mg_loc_ind(5,myid) |
---|
1514 | |
---|
1515 | ALLOCATE( f2_sub(nzb:nzt_mg(grid_level)+1,nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
1516 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) ) |
---|
1517 | |
---|
1518 | CALL restrict( f2_sub, r ) |
---|
1519 | |
---|
1520 | ! |
---|
1521 | !-- Restore the correct indices of this level |
---|
1522 | nxl_mg(grid_level) = nxl_mg_save |
---|
1523 | nxr_mg(grid_level) = nxr_mg_save |
---|
1524 | nys_mg(grid_level) = nys_mg_save |
---|
1525 | nyn_mg(grid_level) = nyn_mg_save |
---|
1526 | nzt_mg(grid_level) = nzt_mg_save |
---|
1527 | nxl = nxl_mg(grid_level) |
---|
1528 | nxr = nxr_mg(grid_level) |
---|
1529 | nys = nys_mg(grid_level) |
---|
1530 | nyn = nyn_mg(grid_level) |
---|
1531 | nzt = nzt_mg(grid_level) |
---|
1532 | ! |
---|
1533 | !-- Gather all arrays from the subdomains on PE0 |
---|
1534 | #if defined( __parallel ) |
---|
1535 | CALL mg_gather( f2, f2_sub ) |
---|
1536 | #endif |
---|
1537 | |
---|
1538 | ! |
---|
1539 | !-- Set switch for routine exchange_horiz, that no ghostpoint exchange has to be carried out |
---|
1540 | !-- from now on |
---|
1541 | mg_switch_to_pe0 = .TRUE. |
---|
1542 | |
---|
1543 | ! |
---|
1544 | !-- In case of non-cyclic lateral boundary conditions, both in- and outflow conditions have to |
---|
1545 | !-- be used on all PEs after the switch, because then they have the total domain. |
---|
1546 | IF ( bc_lr_dirrad ) THEN |
---|
1547 | bc_dirichlet_l = .TRUE. |
---|
1548 | bc_dirichlet_r = .FALSE. |
---|
1549 | bc_radiation_l = .FALSE. |
---|
1550 | bc_radiation_r = .TRUE. |
---|
1551 | ELSEIF ( bc_lr_raddir ) THEN |
---|
1552 | bc_dirichlet_l = .FALSE. |
---|
1553 | bc_dirichlet_r = .TRUE. |
---|
1554 | bc_radiation_l = .TRUE. |
---|
1555 | bc_radiation_r = .FALSE. |
---|
1556 | ELSEIF ( child_domain .OR. nesting_offline ) THEN |
---|
1557 | bc_dirichlet_l = .TRUE. |
---|
1558 | bc_dirichlet_r = .TRUE. |
---|
1559 | ENDIF |
---|
1560 | |
---|
1561 | IF ( bc_ns_dirrad ) THEN |
---|
1562 | bc_dirichlet_n = .TRUE. |
---|
1563 | bc_dirichlet_s = .FALSE. |
---|
1564 | bc_radiation_n = .FALSE. |
---|
1565 | bc_radiation_s = .TRUE. |
---|
1566 | ELSEIF ( bc_ns_raddir ) THEN |
---|
1567 | bc_dirichlet_n = .FALSE. |
---|
1568 | bc_dirichlet_s = .TRUE. |
---|
1569 | bc_radiation_n = .TRUE. |
---|
1570 | bc_radiation_s = .FALSE. |
---|
1571 | ELSEIF ( child_domain .OR. nesting_offline) THEN |
---|
1572 | bc_dirichlet_s = .TRUE. |
---|
1573 | bc_dirichlet_n = .TRUE. |
---|
1574 | ENDIF |
---|
1575 | |
---|
1576 | DEALLOCATE( f2_sub ) |
---|
1577 | |
---|
1578 | ELSE |
---|
1579 | |
---|
1580 | CALL restrict( f2, r ) |
---|
1581 | |
---|
1582 | ind_even_odd = even_odd_level(grid_level) ! Must be after restrict |
---|
1583 | |
---|
1584 | ENDIF |
---|
1585 | |
---|
1586 | p2 = 0.0_wp |
---|
1587 | |
---|
1588 | ! |
---|
1589 | !-- Repeat the same procedure untill the coarsest grid is reached |
---|
1590 | CALL next_mg_level( f2, p2, p3, r ) |
---|
1591 | |
---|
1592 | ENDIF |
---|
1593 | |
---|
1594 | ! |
---|
1595 | !-- Now follows the prolongation |
---|
1596 | IF ( grid_level >= 2 ) THEN |
---|
1597 | |
---|
1598 | ! |
---|
1599 | !-- Prolongation of the new residual. The values are transferred from the coarse to the next |
---|
1600 | !-- finer grid. |
---|
1601 | IF ( grid_level == mg_switch_to_pe0_level+1 ) THEN |
---|
1602 | |
---|
1603 | #if defined( __parallel ) |
---|
1604 | ! |
---|
1605 | !-- At this level, the new residual first has to be scattered from PE0 to the other PEs |
---|
1606 | ALLOCATE( p2_sub(nzb:mg_loc_ind(5,myid)+1,mg_loc_ind(3,myid)-1:mg_loc_ind(4,myid)+1, & |
---|
1607 | mg_loc_ind(1,myid)-1:mg_loc_ind(2,myid)+1) ) |
---|
1608 | |
---|
1609 | CALL mg_scatter( p2, p2_sub ) |
---|
1610 | |
---|
1611 | ! |
---|
1612 | !-- Therefore, indices of the previous level have to be changed to subdomain values in between |
---|
1613 | !-- (otherwise, the prolong routine would expect the gathered array). |
---|
1614 | nxl_mg_save = nxl_mg(grid_level-1) |
---|
1615 | nxr_mg_save = nxr_mg(grid_level-1) |
---|
1616 | nys_mg_save = nys_mg(grid_level-1) |
---|
1617 | nyn_mg_save = nyn_mg(grid_level-1) |
---|
1618 | nzt_mg_save = nzt_mg(grid_level-1) |
---|
1619 | nxl_mg(grid_level-1) = mg_loc_ind(1,myid) |
---|
1620 | nxr_mg(grid_level-1) = mg_loc_ind(2,myid) |
---|
1621 | nys_mg(grid_level-1) = mg_loc_ind(3,myid) |
---|
1622 | nyn_mg(grid_level-1) = mg_loc_ind(4,myid) |
---|
1623 | nzt_mg(grid_level-1) = mg_loc_ind(5,myid) |
---|
1624 | |
---|
1625 | ! |
---|
1626 | !-- Set switch for routine exchange_horiz, that ghost point exchange has to be carried out |
---|
1627 | !-- again from now on |
---|
1628 | mg_switch_to_pe0 = .FALSE. |
---|
1629 | |
---|
1630 | ! |
---|
1631 | !-- For non-cyclic lateral boundary conditions and in case of nesting, restore the in-/outflow |
---|
1632 | !-- conditions. |
---|
1633 | bc_dirichlet_l = .FALSE.; bc_dirichlet_r = .FALSE. |
---|
1634 | bc_dirichlet_n = .FALSE.; bc_dirichlet_s = .FALSE. |
---|
1635 | bc_radiation_l = .FALSE.; bc_radiation_r = .FALSE. |
---|
1636 | bc_radiation_n = .FALSE.; bc_radiation_s = .FALSE. |
---|
1637 | |
---|
1638 | IF ( pleft == MPI_PROC_NULL ) THEN |
---|
1639 | IF ( bc_lr_dirrad .OR. child_domain .OR. nesting_offline ) THEN |
---|
1640 | bc_dirichlet_l = .TRUE. |
---|
1641 | ELSEIF ( bc_lr_raddir ) THEN |
---|
1642 | bc_radiation_l = .TRUE. |
---|
1643 | ENDIF |
---|
1644 | ENDIF |
---|
1645 | |
---|
1646 | IF ( pright == MPI_PROC_NULL ) THEN |
---|
1647 | IF ( bc_lr_dirrad ) THEN |
---|
1648 | bc_radiation_r = .TRUE. |
---|
1649 | ELSEIF ( bc_lr_raddir .OR. child_domain .OR. nesting_offline ) THEN |
---|
1650 | bc_dirichlet_r = .TRUE. |
---|
1651 | ENDIF |
---|
1652 | ENDIF |
---|
1653 | |
---|
1654 | IF ( psouth == MPI_PROC_NULL ) THEN |
---|
1655 | IF ( bc_ns_dirrad ) THEN |
---|
1656 | bc_radiation_s = .TRUE. |
---|
1657 | ELSEIF ( bc_ns_raddir .OR. child_domain .OR. nesting_offline ) THEN |
---|
1658 | bc_dirichlet_s = .TRUE. |
---|
1659 | ENDIF |
---|
1660 | ENDIF |
---|
1661 | |
---|
1662 | IF ( pnorth == MPI_PROC_NULL ) THEN |
---|
1663 | IF ( bc_ns_dirrad .OR. child_domain .OR. nesting_offline ) THEN |
---|
1664 | bc_dirichlet_n = .TRUE. |
---|
1665 | ELSEIF ( bc_ns_raddir ) THEN |
---|
1666 | bc_radiation_n = .TRUE. |
---|
1667 | ENDIF |
---|
1668 | ENDIF |
---|
1669 | |
---|
1670 | CALL prolong( p2_sub, p3 ) |
---|
1671 | |
---|
1672 | ! |
---|
1673 | !-- Restore the correct indices of the previous level |
---|
1674 | nxl_mg(grid_level-1) = nxl_mg_save |
---|
1675 | nxr_mg(grid_level-1) = nxr_mg_save |
---|
1676 | nys_mg(grid_level-1) = nys_mg_save |
---|
1677 | nyn_mg(grid_level-1) = nyn_mg_save |
---|
1678 | nzt_mg(grid_level-1) = nzt_mg_save |
---|
1679 | |
---|
1680 | DEALLOCATE( p2_sub ) |
---|
1681 | #endif |
---|
1682 | |
---|
1683 | ELSE |
---|
1684 | |
---|
1685 | CALL prolong( p2, p3 ) |
---|
1686 | |
---|
1687 | ENDIF |
---|
1688 | |
---|
1689 | ! |
---|
1690 | !-- Computation of the new pressure correction. Therefore, values from prior grids are added up |
---|
1691 | !-- automatically stage by stage. |
---|
1692 | DO i = nxl_mg(grid_level)-1, nxr_mg(grid_level)+1 |
---|
1693 | DO j = nys_mg(grid_level)-1, nyn_mg(grid_level)+1 |
---|
1694 | DO k = nzb, nzt_mg(grid_level)+1 |
---|
1695 | p_mg(k,j,i) = p_mg(k,j,i) + p3(k,j,i) |
---|
1696 | ENDDO |
---|
1697 | ENDDO |
---|
1698 | ENDDO |
---|
1699 | |
---|
1700 | ! |
---|
1701 | !-- Relaxation of the new solution |
---|
1702 | CALL redblack( f_mg, p_mg ) |
---|
1703 | |
---|
1704 | ENDIF |
---|
1705 | |
---|
1706 | |
---|
1707 | ! |
---|
1708 | !-- The following few lines serve the steering of the multigrid scheme |
---|
1709 | IF ( grid_level == maximum_grid_level ) THEN |
---|
1710 | |
---|
1711 | GOTO 20 |
---|
1712 | |
---|
1713 | ELSEIF ( grid_level /= maximum_grid_level .AND. grid_level /= 1 .AND. & |
---|
1714 | grid_level_count(grid_level) /= gamma_mg ) THEN |
---|
1715 | |
---|
1716 | GOTO 10 |
---|
1717 | |
---|
1718 | ENDIF |
---|
1719 | |
---|
1720 | ! |
---|
1721 | !-- Reset counter for the next call of poismg |
---|
1722 | grid_level_count(grid_level) = 0 |
---|
1723 | |
---|
1724 | ! |
---|
1725 | !-- Continue with the next finer level. nxl..nzt have to be set to the finer grid values, because |
---|
1726 | !-- these variables are needed for the exchange of ghost points in routine exchange_horiz. |
---|
1727 | grid_level = grid_level + 1 |
---|
1728 | ind_even_odd = even_odd_level(grid_level) |
---|
1729 | |
---|
1730 | nxl = nxl_mg(grid_level) |
---|
1731 | nxr = nxr_mg(grid_level) |
---|
1732 | nys = nys_mg(grid_level) |
---|
1733 | nyn = nyn_mg(grid_level) |
---|
1734 | nzt = nzt_mg(grid_level) |
---|
1735 | |
---|
1736 | 20 CONTINUE |
---|
1737 | |
---|
1738 | END SUBROUTINE next_mg_level |
---|
1739 | |
---|
1740 | |
---|
1741 | !--------------------------------------------------------------------------------------------------! |
---|
1742 | ! Description: |
---|
1743 | ! ------------ |
---|
1744 | !> Initial settings for sorting k-dimension from sequential order (alternate even/odd) into blocks |
---|
1745 | !> of even and odd or vice versa |
---|
1746 | !--------------------------------------------------------------------------------------------------! |
---|
1747 | SUBROUTINE init_even_odd_blocks |
---|
1748 | |
---|
1749 | |
---|
1750 | USE arrays_3d, & |
---|
1751 | ONLY: f1_mg, & |
---|
1752 | f2_mg, & |
---|
1753 | f3_mg |
---|
1754 | |
---|
1755 | USE control_parameters, & |
---|
1756 | ONLY: grid_level, & |
---|
1757 | maximum_grid_level |
---|
1758 | |
---|
1759 | USE indices, & |
---|
1760 | ONLY: nzb, & |
---|
1761 | nzt, & |
---|
1762 | nzt_mg |
---|
1763 | |
---|
1764 | USE indices, & |
---|
1765 | ONLY: nzb, & |
---|
1766 | nzt_mg |
---|
1767 | |
---|
1768 | IMPLICIT NONE |
---|
1769 | ! |
---|
1770 | !-- Local variables |
---|
1771 | INTEGER(iwp) :: i !< |
---|
1772 | INTEGER(iwp) :: l !< |
---|
1773 | |
---|
1774 | LOGICAL, SAVE :: lfirst = .TRUE. !< |
---|
1775 | |
---|
1776 | |
---|
1777 | IF ( .NOT. lfirst ) RETURN |
---|
1778 | |
---|
1779 | ALLOCATE( even_odd_level(maximum_grid_level) ) |
---|
1780 | |
---|
1781 | ALLOCATE( f1_mg_b(nzb:nzt+1,maximum_grid_level), f2_mg_b(nzb:nzt+1,maximum_grid_level), & |
---|
1782 | f3_mg_b(nzb:nzt+1,maximum_grid_level) ) |
---|
1783 | |
---|
1784 | ! |
---|
1785 | !-- Set border index between the even and odd block |
---|
1786 | DO i = maximum_grid_level, 1, -1 |
---|
1787 | even_odd_level(i) = nzt_mg(i) / 2 |
---|
1788 | ENDDO |
---|
1789 | |
---|
1790 | ! |
---|
1791 | !-- Sort grid coefficients used in red/black scheme and for calculating the residual to block |
---|
1792 | !-- (even/odd) structure |
---|
1793 | DO l = maximum_grid_level, 1 , -1 |
---|
1794 | CALL sort_k_to_even_odd_blocks( f1_mg(nzb+1:nzt_mg(grid_level),l), & |
---|
1795 | f1_mg_b(nzb:nzt_mg(grid_level)+1,l), l ) |
---|
1796 | CALL sort_k_to_even_odd_blocks( f2_mg(nzb+1:nzt_mg(grid_level),l), & |
---|
1797 | f2_mg_b(nzb:nzt_mg(grid_level)+1,l), l ) |
---|
1798 | CALL sort_k_to_even_odd_blocks( f3_mg(nzb+1:nzt_mg(grid_level),l), & |
---|
1799 | f3_mg_b(nzb:nzt_mg(grid_level)+1,l), l ) |
---|
1800 | ENDDO |
---|
1801 | |
---|
1802 | lfirst = .FALSE. |
---|
1803 | |
---|
1804 | END SUBROUTINE init_even_odd_blocks |
---|
1805 | |
---|
1806 | |
---|
1807 | !--------------------------------------------------------------------------------------------------! |
---|
1808 | ! Description: |
---|
1809 | ! ------------ |
---|
1810 | !> Special exchange_horiz subroutine for use in redblack. Transfers only "red" or "black" data |
---|
1811 | !> points. |
---|
1812 | !--------------------------------------------------------------------------------------------------! |
---|
1813 | SUBROUTINE special_exchange_horiz( p_mg, color ) |
---|
1814 | |
---|
1815 | |
---|
1816 | USE control_parameters, & |
---|
1817 | ONLY: grid_level |
---|
1818 | |
---|
1819 | #if defined( __parallel ) |
---|
1820 | USE control_parameters, & |
---|
1821 | ONLY: mg_switch_to_pe0_level, & |
---|
1822 | synchronous_exchange |
---|
1823 | #endif |
---|
1824 | |
---|
1825 | USE indices, & |
---|
1826 | ONLY: nxl_mg, & |
---|
1827 | nxr_mg, & |
---|
1828 | nys_mg, & |
---|
1829 | nyn_mg, & |
---|
1830 | nzb, & |
---|
1831 | nzt_mg |
---|
1832 | |
---|
1833 | #if defined( __parallel ) |
---|
1834 | USE indices, & |
---|
1835 | ONLY: nxl, & |
---|
1836 | nxr, & |
---|
1837 | nys, & |
---|
1838 | nyn, & |
---|
1839 | nzt |
---|
1840 | #endif |
---|
1841 | |
---|
1842 | IMPLICIT NONE |
---|
1843 | |
---|
1844 | INTEGER(iwp), INTENT(IN) :: color !< flag for grid point type (red or black) |
---|
1845 | |
---|
1846 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1,nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
1847 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: p_mg !< treated array |
---|
1848 | |
---|
1849 | |
---|
1850 | #if defined ( __parallel ) |
---|
1851 | ! |
---|
1852 | !-- Local variables |
---|
1853 | INTEGER(iwp) :: i !< index variable along x |
---|
1854 | INTEGER(iwp) :: i1 !< index variable along x on coarse level |
---|
1855 | INTEGER(iwp) :: i2 !< index variable along x on coarse level |
---|
1856 | |
---|
1857 | INTEGER(iwp) :: j !< index variable along y |
---|
1858 | INTEGER(iwp) :: j1 !< index variable along y on coarse level |
---|
1859 | INTEGER(iwp) :: j2 !< index variable along y on coarse level |
---|
1860 | INTEGER(iwp) :: k !< index variable along z |
---|
1861 | INTEGER(iwp) :: l !< short for grid level |
---|
1862 | INTEGER(iwp) :: jys !< index for lower local PE boundary along y |
---|
1863 | INTEGER(iwp) :: jyn !< index for upper local PE boundary along y |
---|
1864 | INTEGER(iwp) :: ixl !< index for lower local PE boundary along x |
---|
1865 | INTEGER(iwp) :: ixr !< index for upper local PE boundary along x |
---|
1866 | |
---|
1867 | LOGICAL :: synchronous_exchange_save !< dummy to reset synchronous_exchange to prescribed value |
---|
1868 | |
---|
1869 | REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: temp !< temporary array on next coarser grid level |
---|
1870 | |
---|
1871 | synchronous_exchange_save = synchronous_exchange |
---|
1872 | synchronous_exchange = .FALSE. |
---|
1873 | |
---|
1874 | l = grid_level |
---|
1875 | |
---|
1876 | ind_even_odd = even_odd_level(grid_level) |
---|
1877 | |
---|
1878 | ! |
---|
1879 | !-- Restricted transfer only on finer levels with enough data. Restricted transfer is not possible |
---|
1880 | !-- for levels smaller or equal to 'switch to PE0 levels', since array bounds do not fit. |
---|
1881 | !-- Moreover, it is not possible for the coarsest grid level, since the dimensions of temp are not |
---|
1882 | !-- defined. For such cases, normal exchange_horiz is called. |
---|
1883 | IF ( l > 1 .AND. l > mg_switch_to_pe0_level + 1 .AND. & |
---|
1884 | ( ngp_xz(grid_level) >= 900 .OR. ngp_yz(grid_level) >= 900 ) ) THEN |
---|
1885 | |
---|
1886 | jys = nys_mg(grid_level-1) |
---|
1887 | jyn = nyn_mg(grid_level-1) |
---|
1888 | ixl = nxl_mg(grid_level-1) |
---|
1889 | ixr = nxr_mg(grid_level-1) |
---|
1890 | ALLOCATE( temp(nzb:nzt_mg(l-1)+1,jys-1:jyn+1,ixl-1:ixr+1) ) |
---|
1891 | ! |
---|
1892 | !-- Handling the even k Values |
---|
1893 | !-- Collecting data for the north - south exchange |
---|
1894 | !-- Since only every second value has to be transfered, data are stored on the next coarser grid |
---|
1895 | !-- level, because the arrays on that level have just the required size |
---|
1896 | i1 = nxl_mg(grid_level-1) |
---|
1897 | i2 = nxl_mg(grid_level-1) |
---|
1898 | |
---|
1899 | DO i = nxl_mg(l), nxr_mg(l), 2 |
---|
1900 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
---|
1901 | |
---|
1902 | IF ( j == nys_mg(l) ) THEN |
---|
1903 | !DIR$ IVDEP |
---|
1904 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
1905 | temp(k-ind_even_odd,jys,i1) = p_mg(k,j,i) |
---|
1906 | ENDDO |
---|
1907 | i1 = i1 + 1 |
---|
1908 | |
---|
1909 | ENDIF |
---|
1910 | |
---|
1911 | IF ( j == nyn_mg(l) ) THEN |
---|
1912 | !DIR$ IVDEP |
---|
1913 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
1914 | temp(k-ind_even_odd,jyn,i2) = p_mg(k,j,i) |
---|
1915 | ENDDO |
---|
1916 | i2 = i2 + 1 |
---|
1917 | |
---|
1918 | ENDIF |
---|
1919 | |
---|
1920 | ENDDO |
---|
1921 | ENDDO |
---|
1922 | |
---|
1923 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
---|
1924 | DO j = nys_mg(l) + (color-1), nyn_mg(l), 2 |
---|
1925 | |
---|
1926 | IF ( j == nys_mg(l) ) THEN |
---|
1927 | !DIR$ IVDEP |
---|
1928 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
1929 | temp(k-ind_even_odd,jys,i1) = p_mg(k,j,i) |
---|
1930 | ENDDO |
---|
1931 | i1 = i1 + 1 |
---|
1932 | |
---|
1933 | ENDIF |
---|
1934 | |
---|
1935 | IF ( j == nyn_mg(l) ) THEN |
---|
1936 | !DIR$ IVDEP |
---|
1937 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
1938 | temp(k-ind_even_odd,jyn,i2) = p_mg(k,j,i) |
---|
1939 | ENDDO |
---|
1940 | i2 = i2 + 1 |
---|
1941 | |
---|
1942 | ENDIF |
---|
1943 | |
---|
1944 | ENDDO |
---|
1945 | ENDDO |
---|
1946 | |
---|
1947 | grid_level = grid_level-1 |
---|
1948 | |
---|
1949 | nxl = nxl_mg(grid_level) |
---|
1950 | nys = nys_mg(grid_level) |
---|
1951 | nxr = nxr_mg(grid_level) |
---|
1952 | nyn = nyn_mg(grid_level) |
---|
1953 | nzt = nzt_mg(grid_level) |
---|
1954 | |
---|
1955 | send_receive = 'ns' |
---|
1956 | CALL exchange_horiz( temp, 1 ) |
---|
1957 | |
---|
1958 | grid_level = grid_level+1 |
---|
1959 | |
---|
1960 | i1 = nxl_mg(grid_level-1) |
---|
1961 | i2 = nxl_mg(grid_level-1) |
---|
1962 | |
---|
1963 | DO i = nxl_mg(l), nxr_mg(l), 2 |
---|
1964 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
---|
1965 | |
---|
1966 | IF ( j == nys_mg(l) ) THEN |
---|
1967 | !DIR$ IVDEP |
---|
1968 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
1969 | p_mg(k,nyn_mg(l)+1,i) = temp(k-ind_even_odd,jyn+1,i1) |
---|
1970 | ENDDO |
---|
1971 | i1 = i1 + 1 |
---|
1972 | |
---|
1973 | ENDIF |
---|
1974 | |
---|
1975 | IF ( j == nyn_mg(l) ) THEN |
---|
1976 | !DIR$ IVDEP |
---|
1977 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
1978 | p_mg(k,nys_mg(l)-1,i) = temp(k-ind_even_odd,jys-1,i2) |
---|
1979 | ENDDO |
---|
1980 | i2 = i2 + 1 |
---|
1981 | |
---|
1982 | ENDIF |
---|
1983 | |
---|
1984 | ENDDO |
---|
1985 | ENDDO |
---|
1986 | |
---|
1987 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
---|
1988 | DO j = nys_mg(l) + (color-1), nyn_mg(l), 2 |
---|
1989 | |
---|
1990 | IF ( j == nys_mg(l) ) THEN |
---|
1991 | !DIR$ IVDEP |
---|
1992 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
1993 | p_mg(k,nyn_mg(l)+1,i) = temp(k-ind_even_odd,jyn+1,i1) |
---|
1994 | ENDDO |
---|
1995 | i1 = i1 + 1 |
---|
1996 | |
---|
1997 | ENDIF |
---|
1998 | |
---|
1999 | IF ( j == nyn_mg(l) ) THEN |
---|
2000 | !DIR$ IVDEP |
---|
2001 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
2002 | p_mg(k,nys_mg(l)-1,i) = temp(k-ind_even_odd,jys-1,i2) |
---|
2003 | ENDDO |
---|
2004 | i2 = i2 + 1 |
---|
2005 | |
---|
2006 | ENDIF |
---|
2007 | |
---|
2008 | ENDDO |
---|
2009 | ENDDO |
---|
2010 | |
---|
2011 | ! |
---|
2012 | !-- Collecting data for the left - right exchange. |
---|
2013 | !-- Since only every second value has to be transfered, data are stored on the next coarser grid |
---|
2014 | !-- level, because the arrays on that level have just the required size. |
---|
2015 | j1 = nys_mg(grid_level-1) |
---|
2016 | j2 = nys_mg(grid_level-1) |
---|
2017 | |
---|
2018 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
---|
2019 | DO i = nxl_mg(l), nxr_mg(l), 2 |
---|
2020 | |
---|
2021 | IF ( i == nxl_mg(l) ) THEN |
---|
2022 | !DIR$ IVDEP |
---|
2023 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
2024 | temp(k-ind_even_odd,j1,ixl) = p_mg(k,j,i) |
---|
2025 | ENDDO |
---|
2026 | j1 = j1 + 1 |
---|
2027 | |
---|
2028 | ENDIF |
---|
2029 | |
---|
2030 | IF ( i == nxr_mg(l) ) THEN |
---|
2031 | !DIR$ IVDEP |
---|
2032 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
2033 | temp(k-ind_even_odd,j2,ixr) = p_mg(k,j,i) |
---|
2034 | ENDDO |
---|
2035 | j2 = j2 + 1 |
---|
2036 | |
---|
2037 | ENDIF |
---|
2038 | |
---|
2039 | ENDDO |
---|
2040 | ENDDO |
---|
2041 | |
---|
2042 | DO j = nys_mg(l) + (color-1), nyn_mg(l), 2 |
---|
2043 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
---|
2044 | |
---|
2045 | IF ( i == nxl_mg(l) ) THEN |
---|
2046 | !DIR$ IVDEP |
---|
2047 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
2048 | temp(k-ind_even_odd,j1,ixl) = p_mg(k,j,i) |
---|
2049 | ENDDO |
---|
2050 | j1 = j1 + 1 |
---|
2051 | |
---|
2052 | ENDIF |
---|
2053 | |
---|
2054 | IF ( i == nxr_mg(l) ) THEN |
---|
2055 | !DIR$ IVDEP |
---|
2056 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
2057 | temp(k-ind_even_odd,j2,ixr) = p_mg(k,j,i) |
---|
2058 | ENDDO |
---|
2059 | j2 = j2 + 1 |
---|
2060 | |
---|
2061 | ENDIF |
---|
2062 | |
---|
2063 | ENDDO |
---|
2064 | ENDDO |
---|
2065 | |
---|
2066 | grid_level = grid_level-1 |
---|
2067 | send_receive = 'lr' |
---|
2068 | |
---|
2069 | CALL exchange_horiz( temp, 1 ) |
---|
2070 | |
---|
2071 | grid_level = grid_level+1 |
---|
2072 | |
---|
2073 | j1 = nys_mg(grid_level-1) |
---|
2074 | j2 = nys_mg(grid_level-1) |
---|
2075 | |
---|
2076 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
---|
2077 | DO i = nxl_mg(l), nxr_mg(l), 2 |
---|
2078 | |
---|
2079 | IF ( i == nxl_mg(l) ) THEN |
---|
2080 | !DIR$ IVDEP |
---|
2081 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
2082 | p_mg(k,j,nxr_mg(l)+1) = temp(k-ind_even_odd,j1,ixr+1) |
---|
2083 | ENDDO |
---|
2084 | j1 = j1 + 1 |
---|
2085 | |
---|
2086 | ENDIF |
---|
2087 | |
---|
2088 | IF ( i == nxr_mg(l) ) THEN |
---|
2089 | !DIR$ IVDEP |
---|
2090 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
2091 | p_mg(k,j,nxl_mg(l)-1) = temp(k-ind_even_odd,j2,ixl-1) |
---|
2092 | ENDDO |
---|
2093 | j2 = j2 + 1 |
---|
2094 | |
---|
2095 | ENDIF |
---|
2096 | |
---|
2097 | ENDDO |
---|
2098 | ENDDO |
---|
2099 | |
---|
2100 | DO j = nys_mg(l) + (color-1), nyn_mg(l), 2 |
---|
2101 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
---|
2102 | |
---|
2103 | IF ( i == nxl_mg(l) ) THEN |
---|
2104 | !DIR$ IVDEP |
---|
2105 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
2106 | p_mg(k,j,nxr_mg(l)+1) = temp(k-ind_even_odd,j1,ixr+1) |
---|
2107 | ENDDO |
---|
2108 | j1 = j1 + 1 |
---|
2109 | |
---|
2110 | ENDIF |
---|
2111 | |
---|
2112 | IF ( i == nxr_mg(l) ) THEN |
---|
2113 | !DIR$ IVDEP |
---|
2114 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
2115 | p_mg(k,j,nxl_mg(l)-1) = temp(k-ind_even_odd,j2,ixl-1) |
---|
2116 | ENDDO |
---|
2117 | j2 = j2 + 1 |
---|
2118 | |
---|
2119 | ENDIF |
---|
2120 | |
---|
2121 | ENDDO |
---|
2122 | ENDDO |
---|
2123 | |
---|
2124 | ! |
---|
2125 | !-- Now handling the even k values |
---|
2126 | !-- Collecting data for the north - south exchange. |
---|
2127 | !-- Since only every second value has to be transfered, data are stored on the next coarser grid |
---|
2128 | !-- level, because the arrays on that level have just the required size. |
---|
2129 | i1 = nxl_mg(grid_level-1) |
---|
2130 | i2 = nxl_mg(grid_level-1) |
---|
2131 | |
---|
2132 | DO i = nxl_mg(l), nxr_mg(l), 2 |
---|
2133 | DO j = nys_mg(l) + (color-1), nyn_mg(l), 2 |
---|
2134 | |
---|
2135 | IF ( j == nys_mg(l) ) THEN |
---|
2136 | !DIR$ IVDEP |
---|
2137 | DO k = nzb+1, ind_even_odd |
---|
2138 | temp(k,jys,i1) = p_mg(k,j,i) |
---|
2139 | ENDDO |
---|
2140 | i1 = i1 + 1 |
---|
2141 | |
---|
2142 | ENDIF |
---|
2143 | |
---|
2144 | IF ( j == nyn_mg(l) ) THEN |
---|
2145 | !DIR$ IVDEP |
---|
2146 | DO k = nzb+1, ind_even_odd |
---|
2147 | temp(k,jyn,i2) = p_mg(k,j,i) |
---|
2148 | ENDDO |
---|
2149 | i2 = i2 + 1 |
---|
2150 | |
---|
2151 | ENDIF |
---|
2152 | |
---|
2153 | ENDDO |
---|
2154 | ENDDO |
---|
2155 | |
---|
2156 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
---|
2157 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
---|
2158 | |
---|
2159 | IF ( j == nys_mg(l) ) THEN |
---|
2160 | !DIR$ IVDEP |
---|
2161 | DO k = nzb+1, ind_even_odd |
---|
2162 | temp(k,jys,i1) = p_mg(k,j,i) |
---|
2163 | ENDDO |
---|
2164 | i1 = i1 + 1 |
---|
2165 | |
---|
2166 | ENDIF |
---|
2167 | |
---|
2168 | IF ( j == nyn_mg(l) ) THEN |
---|
2169 | !DIR$ IVDEP |
---|
2170 | DO k = nzb+1, ind_even_odd |
---|
2171 | temp(k,jyn,i2) = p_mg(k,j,i) |
---|
2172 | ENDDO |
---|
2173 | i2 = i2 + 1 |
---|
2174 | |
---|
2175 | ENDIF |
---|
2176 | |
---|
2177 | ENDDO |
---|
2178 | ENDDO |
---|
2179 | |
---|
2180 | grid_level = grid_level-1 |
---|
2181 | |
---|
2182 | send_receive = 'ns' |
---|
2183 | CALL exchange_horiz( temp, 1 ) |
---|
2184 | |
---|
2185 | grid_level = grid_level+1 |
---|
2186 | |
---|
2187 | i1 = nxl_mg(grid_level-1) |
---|
2188 | i2 = nxl_mg(grid_level-1) |
---|
2189 | |
---|
2190 | DO i = nxl_mg(l), nxr_mg(l), 2 |
---|
2191 | DO j = nys_mg(l) + (color-1), nyn_mg(l), 2 |
---|
2192 | |
---|
2193 | IF ( j == nys_mg(l) ) THEN |
---|
2194 | !DIR$ IVDEP |
---|
2195 | DO k = nzb+1, ind_even_odd |
---|
2196 | p_mg(k,nyn_mg(l)+1,i) = temp(k,jyn+1,i1) |
---|
2197 | ENDDO |
---|
2198 | i1 = i1 + 1 |
---|
2199 | |
---|
2200 | ENDIF |
---|
2201 | |
---|
2202 | IF ( j == nyn_mg(l) ) THEN |
---|
2203 | !DIR$ IVDEP |
---|
2204 | DO k = nzb+1, ind_even_odd |
---|
2205 | p_mg(k,nys_mg(l)-1,i) = temp(k,jys-1,i2) |
---|
2206 | ENDDO |
---|
2207 | i2 = i2 + 1 |
---|
2208 | |
---|
2209 | ENDIF |
---|
2210 | |
---|
2211 | ENDDO |
---|
2212 | ENDDO |
---|
2213 | |
---|
2214 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
---|
2215 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
---|
2216 | |
---|
2217 | IF ( j == nys_mg(l) ) THEN |
---|
2218 | !DIR$ IVDEP |
---|
2219 | DO k = nzb+1, ind_even_odd |
---|
2220 | p_mg(k,nyn_mg(l)+1,i) = temp(k,jyn+1,i1) |
---|
2221 | ENDDO |
---|
2222 | i1 = i1 + 1 |
---|
2223 | |
---|
2224 | ENDIF |
---|
2225 | |
---|
2226 | IF ( j == nyn_mg(l) ) THEN |
---|
2227 | !DIR$ IVDEP |
---|
2228 | DO k = nzb+1, ind_even_odd |
---|
2229 | p_mg(k,nys_mg(l)-1,i) = temp(k,jys-1,i2) |
---|
2230 | ENDDO |
---|
2231 | i2 = i2 + 1 |
---|
2232 | |
---|
2233 | ENDIF |
---|
2234 | |
---|
2235 | ENDDO |
---|
2236 | ENDDO |
---|
2237 | |
---|
2238 | j1 = nys_mg(grid_level-1) |
---|
2239 | j2 = nys_mg(grid_level-1) |
---|
2240 | |
---|
2241 | DO i = nxl_mg(l), nxr_mg(l), 2 |
---|
2242 | DO j = nys_mg(l) + (color-1), nyn_mg(l), 2 |
---|
2243 | |
---|
2244 | IF ( i == nxl_mg(l) ) THEN |
---|
2245 | !DIR$ IVDEP |
---|
2246 | DO k = nzb+1, ind_even_odd |
---|
2247 | temp(k,j1,ixl) = p_mg(k,j,i) |
---|
2248 | ENDDO |
---|
2249 | j1 = j1 + 1 |
---|
2250 | |
---|
2251 | ENDIF |
---|
2252 | |
---|
2253 | IF ( i == nxr_mg(l) ) THEN |
---|
2254 | !DIR$ IVDEP |
---|
2255 | DO k = nzb+1, ind_even_odd |
---|
2256 | temp(k,j2,ixr) = p_mg(k,j,i) |
---|
2257 | ENDDO |
---|
2258 | j2 = j2 + 1 |
---|
2259 | |
---|
2260 | ENDIF |
---|
2261 | |
---|
2262 | ENDDO |
---|
2263 | ENDDO |
---|
2264 | |
---|
2265 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
---|
2266 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
---|
2267 | |
---|
2268 | IF ( i == nxl_mg(l) ) THEN |
---|
2269 | !DIR$ IVDEP |
---|
2270 | DO k = nzb+1, ind_even_odd |
---|
2271 | temp(k,j1,ixl) = p_mg(k,j,i) |
---|
2272 | ENDDO |
---|
2273 | j1 = j1 + 1 |
---|
2274 | |
---|
2275 | ENDIF |
---|
2276 | |
---|
2277 | IF ( i == nxr_mg(l) ) THEN |
---|
2278 | !DIR$ IVDEP |
---|
2279 | DO k = nzb+1, ind_even_odd |
---|
2280 | temp(k,j2,ixr) = p_mg(k,j,i) |
---|
2281 | ENDDO |
---|
2282 | j2 = j2 + 1 |
---|
2283 | |
---|
2284 | ENDIF |
---|
2285 | |
---|
2286 | ENDDO |
---|
2287 | ENDDO |
---|
2288 | |
---|
2289 | grid_level = grid_level-1 |
---|
2290 | |
---|
2291 | send_receive = 'lr' |
---|
2292 | CALL exchange_horiz( temp, 1 ) |
---|
2293 | |
---|
2294 | grid_level = grid_level+1 |
---|
2295 | |
---|
2296 | nxl = nxl_mg(grid_level) |
---|
2297 | nys = nys_mg(grid_level) |
---|
2298 | nxr = nxr_mg(grid_level) |
---|
2299 | nyn = nyn_mg(grid_level) |
---|
2300 | nzt = nzt_mg(grid_level) |
---|
2301 | |
---|
2302 | j1 = nys_mg(grid_level-1) |
---|
2303 | j2 = nys_mg(grid_level-1) |
---|
2304 | |
---|
2305 | DO i = nxl_mg(l), nxr_mg(l), 2 |
---|
2306 | DO j = nys_mg(l) + (color-1), nyn_mg(l), 2 |
---|
2307 | |
---|
2308 | IF ( i == nxl_mg(l) ) THEN |
---|
2309 | !DIR$ IVDEP |
---|
2310 | DO k = nzb+1, ind_even_odd |
---|
2311 | p_mg(k,j,nxr_mg(l)+1) = temp(k,j1,ixr+1) |
---|
2312 | ENDDO |
---|
2313 | j1 = j1 + 1 |
---|
2314 | |
---|
2315 | ENDIF |
---|
2316 | |
---|
2317 | IF ( i == nxr_mg(l) ) THEN |
---|
2318 | !DIR$ IVDEP |
---|
2319 | DO k = nzb+1, ind_even_odd |
---|
2320 | p_mg(k,j,nxl_mg(l)-1) = temp(k,j2,ixl-1) |
---|
2321 | ENDDO |
---|
2322 | j2 = j2 + 1 |
---|
2323 | |
---|
2324 | ENDIF |
---|
2325 | |
---|
2326 | ENDDO |
---|
2327 | ENDDO |
---|
2328 | |
---|
2329 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
---|
2330 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
---|
2331 | |
---|
2332 | IF ( i == nxl_mg(l) ) THEN |
---|
2333 | !DIR$ IVDEP |
---|
2334 | DO k = nzb+1, ind_even_odd |
---|
2335 | p_mg(k,j,nxr_mg(l)+1) = temp(k,j1,ixr+1) |
---|
2336 | ENDDO |
---|
2337 | j1 = j1 + 1 |
---|
2338 | |
---|
2339 | ENDIF |
---|
2340 | |
---|
2341 | IF ( i == nxr_mg(l) ) THEN |
---|
2342 | !DIR$ IVDEP |
---|
2343 | DO k = nzb+1, ind_even_odd |
---|
2344 | p_mg(k,j,nxl_mg(l)-1) = temp(k,j2,ixl-1) |
---|
2345 | ENDDO |
---|
2346 | j2 = j2 + 1 |
---|
2347 | |
---|
2348 | ENDIF |
---|
2349 | |
---|
2350 | ENDDO |
---|
2351 | ENDDO |
---|
2352 | |
---|
2353 | DEALLOCATE( temp ) |
---|
2354 | |
---|
2355 | ELSE |
---|
2356 | |
---|
2357 | ! |
---|
2358 | !-- Standard horizontal ghost boundary exchange for small coarse grid levels, where the transfer |
---|
2359 | !-- time is latency bound |
---|
2360 | CALL exchange_horiz( p_mg, 1 ) |
---|
2361 | |
---|
2362 | ENDIF |
---|
2363 | |
---|
2364 | ! |
---|
2365 | !-- Reset values to default PALM setup |
---|
2366 | synchronous_exchange = synchronous_exchange_save |
---|
2367 | send_receive = 'al' |
---|
2368 | #else |
---|
2369 | |
---|
2370 | ! |
---|
2371 | !-- Next line is to avoid compiler error due to unused dummy argument |
---|
2372 | IF ( color == 1234567 ) RETURN |
---|
2373 | ! |
---|
2374 | !-- Standard horizontal ghost boundary exchange for small coarse grid levels, where the transfer |
---|
2375 | !-- time is latency bound. |
---|
2376 | CALL exchange_horiz( p_mg, 1 ) |
---|
2377 | #endif |
---|
2378 | |
---|
2379 | END SUBROUTINE special_exchange_horiz |
---|
2380 | |
---|
2381 | END MODULE poismg_mod |
---|