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 |
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6 | ! terms of the GNU General Public License as published by the Free Software |
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7 | ! Foundation, either version 3 of the License, or (at your option) any later |
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8 | ! version. |
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9 | ! |
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10 | ! PALM is distributed in the hope that it will be useful, but WITHOUT ANY |
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11 | ! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR |
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12 | ! A PARTICULAR PURPOSE. See the GNU General Public License for more details. |
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13 | ! |
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14 | ! You should have received a copy of the GNU General Public License along with |
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15 | ! PALM. If not, see <http://www.gnu.org/licenses/>. |
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16 | ! |
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17 | ! Copyright 1997-2018 Leibniz Universitaet Hannover |
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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 2718 2018-01-02 08:49:38Z raasch $ |
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27 | ! Corrected "Former revisions" section |
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28 | ! |
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29 | ! 2696 2017-12-14 17:12:51Z kanani |
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30 | ! Change in file header (GPL part) |
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31 | ! Large-scale forcing implemented (MS) |
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32 | ! |
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33 | ! 2298 2017-06-29 09:28:18Z raasch |
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34 | ! sendrecv_in_background related parts removed |
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35 | ! |
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36 | ! 2232 2017-05-30 17:47:52Z suehring |
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37 | ! |
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38 | ! 2073 2016-11-30 14:34:05Z raasch |
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39 | ! change of openmp directives in restrict |
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40 | ! |
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41 | ! 2037 2016-10-26 11:15:40Z knoop |
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42 | ! Anelastic approximation implemented (stll error in optimized multigrid) |
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43 | ! |
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44 | ! 2021 2016-10-07 14:08:57Z suehring |
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45 | ! Bugfix: restore nest_bound_(l/r/s/n) in case of mg_switch_to_pe0 |
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46 | ! |
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47 | ! 2000 2016-08-20 18:09:15Z knoop |
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48 | ! Forced header and separation lines into 80 columns |
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49 | ! |
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50 | ! 1934 2016-06-13 09:46:57Z hellstea |
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51 | ! Rename subroutines and cpu-measure log points to indicate default version |
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52 | ! |
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53 | ! 1904 2016-05-11 13:06:12Z suehring |
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54 | ! Bugfix: enable special_exchange_horiz only for finer grid levels. |
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55 | ! Some formatting adjustments and variable descriptions. |
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56 | ! |
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57 | ! 1898 2016-05-03 11:27:17Z suehring |
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58 | ! Bugfix: bottom and top boundary condition in resid_fast |
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59 | ! Bugfix: restriction at nzb+1 |
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60 | ! formatting adjustments, variable descriptions added in some declaration blocks |
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61 | ! |
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62 | ! 1850 2016-04-08 13:29:27Z maronga |
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63 | ! Module renamed |
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64 | ! |
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65 | ! |
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66 | ! 1762 2016-02-25 12:31:13Z hellstea |
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67 | ! Introduction of nested domain feature |
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68 | ! |
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69 | ! 1682 2015-10-07 23:56:08Z knoop |
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70 | ! Code annotations made doxygen readable |
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71 | ! |
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72 | ! 1609 2015-07-03 15:37:58Z maronga |
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73 | ! Bugfix: allow compilation without __parallel. |
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74 | ! |
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75 | ! 1575 2015-03-27 09:56:27Z raasch |
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76 | ! Initial revision. |
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77 | ! Routine re-written and optimised based on poismg. |
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78 | ! |
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79 | ! Following optimisations have been made: |
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80 | ! - vectorisation (for Intel-CPUs) of the red-black algorithm by resorting |
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81 | ! array elements with even and odd indices |
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82 | ! - explicit boundary conditions for building walls removed (solver is |
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83 | ! running through the buildings |
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84 | ! - reduced data transfer in case of ghost point exchange, because only |
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85 | ! "red" or "black" data points need to be exchanged. This is not applied |
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86 | ! for coarser grid levels, since for then the transfer time is latency bound |
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87 | ! |
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88 | ! |
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89 | ! Description: |
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90 | ! ------------ |
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91 | !> Solves the Poisson equation for the perturbation pressure with a multigrid |
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92 | !> V- or W-Cycle scheme. |
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93 | !> |
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94 | !> This multigrid method was originally developed for PALM by Joerg Uhlenbrock, |
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95 | !> September 2000 - July 2001. It has been optimised for speed by Klaus |
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96 | !> Ketelsen in November 2014. |
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97 | !> |
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98 | !> @attention Loop unrolling and cache optimization in SOR-Red/Black method |
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99 | !> still does not give the expected speedup! |
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100 | !> |
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101 | !> @todo Further work required. |
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102 | !------------------------------------------------------------------------------! |
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103 | MODULE poismg_mod |
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104 | |
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105 | USE control_parameters, & |
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106 | ONLY: grid_level, force_bound_l, force_bound_n, force_bound_r, & |
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107 | force_bound_s, forcing, inflow_l, inflow_n, inflow_r, inflow_s, & |
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108 | nest_bound_l, nest_bound_n, nest_bound_r, nest_bound_s, & |
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109 | outflow_l, outflow_n, outflow_r, outflow_s |
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110 | |
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111 | USE cpulog, & |
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112 | ONLY: cpu_log, log_point_s |
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113 | |
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114 | USE kinds |
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115 | |
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116 | USE pegrid |
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117 | |
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118 | PRIVATE |
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119 | |
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120 | INTEGER, SAVE :: ind_even_odd !< border index between even and odd k index |
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121 | INTEGER, DIMENSION(:), SAVE, ALLOCATABLE :: even_odd_level !< stores ind_even_odd for all MG levels |
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122 | |
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123 | REAL(wp), DIMENSION(:,:), SAVE, ALLOCATABLE :: f1_mg_b, f2_mg_b, f3_mg_b !< blocked version of f1_mg ... |
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124 | |
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125 | INTERFACE poismg |
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126 | MODULE PROCEDURE poismg |
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127 | END INTERFACE poismg |
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128 | |
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129 | INTERFACE sort_k_to_even_odd_blocks |
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130 | MODULE PROCEDURE sort_k_to_even_odd_blocks |
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131 | MODULE PROCEDURE sort_k_to_even_odd_blocks_int |
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132 | MODULE PROCEDURE sort_k_to_even_odd_blocks_1d |
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133 | END INTERFACE sort_k_to_even_odd_blocks |
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134 | |
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135 | PUBLIC poismg |
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136 | |
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137 | CONTAINS |
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138 | |
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139 | !------------------------------------------------------------------------------! |
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140 | ! Description: |
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141 | ! ------------ |
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142 | !> Solves the Poisson equation for the perturbation pressure with a multigrid |
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143 | !> V- or W-Cycle scheme. |
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144 | !------------------------------------------------------------------------------! |
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145 | SUBROUTINE poismg( r ) |
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146 | |
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147 | USE arrays_3d, & |
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148 | ONLY: d, p_loc |
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149 | |
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150 | USE control_parameters, & |
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151 | ONLY: gathered_size, grid_level, grid_level_count, & |
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152 | maximum_grid_level, message_string, mgcycles, mg_cycles, & |
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153 | mg_switch_to_pe0_level, residual_limit, subdomain_size |
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154 | |
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155 | USE cpulog, & |
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156 | ONLY: cpu_log, log_point_s |
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157 | |
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158 | USE indices, & |
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159 | ONLY: nxl, nxlg, nxl_mg, nxr, nxrg, nxr_mg, nys, nysg, nys_mg, nyn,& |
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160 | nyng, nyn_mg, nzb, nzt, nzt_mg |
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161 | |
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162 | IMPLICIT NONE |
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163 | |
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164 | REAL(wp) :: maxerror !< |
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165 | REAL(wp) :: maximum_mgcycles !< |
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166 | REAL(wp) :: residual_norm !< |
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167 | |
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168 | REAL(wp), DIMENSION(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) :: r !< |
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169 | |
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170 | REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: p3 !< |
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171 | |
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172 | |
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173 | CALL cpu_log( log_point_s(29), 'poismg', 'start' ) |
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174 | ! |
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175 | !-- Initialize arrays and variables used in this subroutine |
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176 | |
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177 | !-- If the number of grid points of the gathered grid, which is collected |
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178 | !-- on PE0, is larger than the number of grid points of an PE, than array |
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179 | !-- p3 will be enlarged. |
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180 | IF ( gathered_size > subdomain_size ) THEN |
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181 | ALLOCATE( p3(nzb:nzt_mg(mg_switch_to_pe0_level)+1,nys_mg( & |
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182 | mg_switch_to_pe0_level)-1:nyn_mg(mg_switch_to_pe0_level)+1,& |
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183 | nxl_mg(mg_switch_to_pe0_level)-1:nxr_mg( & |
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184 | mg_switch_to_pe0_level)+1) ) |
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185 | ELSE |
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186 | ALLOCATE ( p3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) ) |
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187 | ENDIF |
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188 | |
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189 | p3 = 0.0_wp |
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190 | |
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191 | |
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192 | ! |
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193 | !-- Ghost boundaries have to be added to divergence array. |
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194 | !-- Exchange routine needs to know the grid level! |
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195 | grid_level = maximum_grid_level |
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196 | CALL exchange_horiz( d, 1) |
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197 | d(nzb,:,:) = d(nzb+1,:,:) |
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198 | |
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199 | ! |
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200 | !-- Initiation of the multigrid scheme. Does n cycles until the |
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201 | !-- residual is smaller than the given limit. The accuracy of the solution |
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202 | !-- of the poisson equation will increase with the number of cycles. |
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203 | !-- If the number of cycles is preset by the user, this number will be |
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204 | !-- carried out regardless of the accuracy. |
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205 | grid_level_count = 0 |
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206 | mgcycles = 0 |
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207 | IF ( mg_cycles == -1 ) THEN |
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208 | maximum_mgcycles = 0 |
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209 | residual_norm = 1.0_wp |
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210 | ELSE |
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211 | maximum_mgcycles = mg_cycles |
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212 | residual_norm = 0.0_wp |
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213 | ENDIF |
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214 | |
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215 | ! |
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216 | !-- Initial settings for sorting k-dimension from sequential order (alternate |
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217 | !-- even/odd) into blocks of even and odd or vice versa |
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218 | CALL init_even_odd_blocks |
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219 | |
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220 | ! |
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221 | !-- Sort input arrays in even/odd blocks along k-dimension |
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222 | CALL sort_k_to_even_odd_blocks( d, grid_level ) |
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223 | CALL sort_k_to_even_odd_blocks( p_loc, grid_level ) |
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224 | |
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225 | ! |
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226 | !-- The complete multigrid cycles are running in block mode, i.e. over |
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227 | !-- seperate data blocks of even and odd indices |
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228 | DO WHILE ( residual_norm > residual_limit .OR. & |
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229 | mgcycles < maximum_mgcycles ) |
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230 | |
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231 | CALL next_mg_level( d, p_loc, p3, r) |
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232 | |
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233 | ! |
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234 | !-- Calculate the residual if the user has not preset the number of |
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235 | !-- cycles to be performed |
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236 | IF ( maximum_mgcycles == 0 ) THEN |
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237 | CALL resid( d, p_loc, r ) |
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238 | maxerror = SUM( r(nzb+1:nzt,nys:nyn,nxl:nxr)**2 ) |
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239 | |
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240 | #if defined( __parallel ) |
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241 | IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr ) |
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242 | CALL MPI_ALLREDUCE( maxerror, residual_norm, 1, MPI_REAL, & |
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243 | MPI_SUM, comm2d, ierr) |
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244 | #else |
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245 | residual_norm = maxerror |
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246 | #endif |
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247 | residual_norm = SQRT( residual_norm ) |
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248 | ENDIF |
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249 | |
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250 | mgcycles = mgcycles + 1 |
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251 | |
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252 | ! |
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253 | !-- If the user has not limited the number of cycles, stop the run in case |
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254 | !-- of insufficient convergence |
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255 | IF ( mgcycles > 1000 .AND. mg_cycles == -1 ) THEN |
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256 | message_string = 'no sufficient convergence within 1000 cycles' |
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257 | CALL message( 'poismg', 'PA0283', 1, 2, 0, 6, 0 ) |
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258 | ENDIF |
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259 | |
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260 | ENDDO |
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261 | |
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262 | DEALLOCATE( p3 ) |
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263 | ! |
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264 | !-- Result has to be sorted back from even/odd blocks to sequential order |
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265 | CALL sort_k_to_sequential( p_loc ) |
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266 | ! |
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267 | !-- Unset the grid level. Variable is used to determine the MPI datatypes for |
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268 | !-- ghost point exchange |
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269 | grid_level = 0 |
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270 | |
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271 | CALL cpu_log( log_point_s(29), 'poismg', 'stop' ) |
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272 | |
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273 | END SUBROUTINE poismg |
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274 | |
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275 | |
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276 | !------------------------------------------------------------------------------! |
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277 | ! Description: |
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278 | ! ------------ |
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279 | !> Computes the residual of the perturbation pressure. |
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280 | !------------------------------------------------------------------------------! |
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281 | SUBROUTINE resid( f_mg, p_mg, r ) |
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282 | |
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283 | |
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284 | USE arrays_3d, & |
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285 | ONLY: f1_mg, f2_mg, f3_mg, rho_air_mg |
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286 | |
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287 | USE control_parameters, & |
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288 | ONLY: bc_lr_cyc, bc_ns_cyc, ibc_p_b, ibc_p_t |
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289 | USE grid_variables, & |
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290 | ONLY: ddx2_mg, ddy2_mg |
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291 | |
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292 | USE indices, & |
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293 | ONLY: nxl_mg, nxr_mg, nys_mg, nyn_mg, nzb, nzt_mg |
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294 | |
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295 | IMPLICIT NONE |
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296 | |
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297 | INTEGER(iwp) :: i !< index variable along x |
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298 | INTEGER(iwp) :: j !< index variable along y |
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299 | INTEGER(iwp) :: k !< index variable along z |
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300 | INTEGER(iwp) :: l !< index indicating grid level |
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301 | INTEGER(iwp) :: km1 !< index variable along z dimension (k-1) |
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302 | INTEGER(iwp) :: kp1 !< index variable along z dimension (k+1) |
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303 | |
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304 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
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305 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
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306 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: f_mg !< velocity divergence |
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307 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
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308 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
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309 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: p_mg !< perturbation pressure |
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310 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
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311 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
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312 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: r !< residuum of perturbation pressure |
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313 | |
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314 | ! |
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315 | !-- Calculate the residual |
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316 | l = grid_level |
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317 | |
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318 | CALL cpu_log( log_point_s(53), 'resid', 'start' ) |
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319 | !$OMP PARALLEL PRIVATE (i,j,k,km1,kp1) |
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320 | !$OMP DO |
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321 | DO i = nxl_mg(l), nxr_mg(l) |
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322 | DO j = nys_mg(l), nyn_mg(l) |
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323 | !DIR$ IVDEP |
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324 | DO k = ind_even_odd+1, nzt_mg(l) |
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325 | km1 = k-ind_even_odd-1 |
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326 | kp1 = k-ind_even_odd |
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327 | r(k,j,i) = f_mg(k,j,i) & |
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328 | - rho_air_mg(k,l) * ddx2_mg(l) * & |
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329 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
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330 | - rho_air_mg(k,l) * ddy2_mg(l) * & |
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331 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
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332 | - f2_mg_b(k,l) * p_mg(kp1,j,i) & |
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333 | - f3_mg_b(k,l) * p_mg(km1,j,i) & |
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334 | + f1_mg_b(k,l) * p_mg(k,j,i) |
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335 | ENDDO |
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336 | !DIR$ IVDEP |
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337 | DO k = nzb+1, ind_even_odd |
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338 | km1 = k+ind_even_odd |
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339 | kp1 = k+ind_even_odd+1 |
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340 | r(k,j,i) = f_mg(k,j,i) & |
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341 | - rho_air_mg(k,l) * ddx2_mg(l) * & |
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342 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
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343 | - rho_air_mg(k,l) * ddy2_mg(l) * & |
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344 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
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345 | - f2_mg_b(k,l) * p_mg(kp1,j,i) & |
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346 | - 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 | ENDDO |
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350 | ENDDO |
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351 | !$OMP END PARALLEL |
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352 | ! |
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353 | !-- Horizontal boundary conditions |
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354 | CALL exchange_horiz( r, 1) |
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355 | |
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356 | IF ( .NOT. bc_lr_cyc ) THEN |
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357 | IF ( inflow_l .OR. outflow_l .OR. nest_bound_l .OR. & |
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358 | force_bound_l ) THEN |
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359 | r(:,:,nxl_mg(l)-1) = r(:,:,nxl_mg(l)) |
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360 | ENDIF |
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361 | IF ( inflow_r .OR. outflow_r .OR. nest_bound_r .OR. & |
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362 | force_bound_r ) THEN |
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363 | r(:,:,nxr_mg(l)+1) = r(:,:,nxr_mg(l)) |
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364 | ENDIF |
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365 | ENDIF |
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366 | |
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367 | IF ( .NOT. bc_ns_cyc ) THEN |
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368 | IF ( inflow_n .OR. outflow_n .OR. nest_bound_n .OR. & |
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369 | force_bound_n ) THEN |
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370 | r(:,nyn_mg(l)+1,:) = r(:,nyn_mg(l),:) |
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371 | ENDIF |
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372 | IF ( inflow_s .OR. outflow_s .OR. nest_bound_s .OR. & |
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373 | force_bound_s ) THEN |
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374 | r(:,nys_mg(l)-1,:) = r(:,nys_mg(l),:) |
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375 | ENDIF |
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376 | ENDIF |
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377 | |
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378 | ! |
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379 | !-- Boundary conditions at bottom and top of the domain. Points may be within |
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380 | !-- buildings, but that doesn't matter. |
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381 | IF ( ibc_p_b == 1 ) THEN |
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382 | ! |
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383 | !-- equivalent to r(nzb,:,: ) = r(nzb+1,:,:) |
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384 | r(nzb,:,: ) = r(ind_even_odd+1,:,:) |
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385 | ELSE |
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386 | r(nzb,:,: ) = 0.0_wp |
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387 | ENDIF |
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388 | |
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389 | IF ( ibc_p_t == 1 ) THEN |
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390 | ! |
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391 | !-- equivalent to r(nzt_mg(l)+1,:,: ) = r(nzt_mg(l),:,:) |
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392 | r(nzt_mg(l)+1,:,: ) = r(ind_even_odd,:,:) |
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393 | ELSE |
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394 | r(nzt_mg(l)+1,:,: ) = 0.0_wp |
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395 | ENDIF |
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396 | |
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397 | CALL cpu_log( log_point_s(53), 'resid', 'stop' ) |
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398 | |
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399 | END SUBROUTINE resid |
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400 | |
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401 | |
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402 | !------------------------------------------------------------------------------! |
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403 | ! Description: |
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404 | ! ------------ |
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405 | !> Interpolates the residual on the next coarser grid with "full weighting" |
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406 | !> scheme |
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407 | !------------------------------------------------------------------------------! |
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408 | SUBROUTINE restrict( f_mg, r ) |
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409 | |
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410 | |
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411 | USE control_parameters, & |
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412 | ONLY: bc_lr_cyc, bc_ns_cyc, ibc_p_b, ibc_p_t |
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413 | |
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414 | USE indices, & |
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415 | ONLY: nxl_mg, nxr_mg, nys_mg, nyn_mg, nzb, nzt_mg |
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416 | |
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417 | IMPLICIT NONE |
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418 | |
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419 | INTEGER(iwp) :: i !< index variable along x on finer grid |
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420 | INTEGER(iwp) :: ic !< index variable along x on coarser grid |
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421 | INTEGER(iwp) :: j !< index variable along y on finer grid |
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422 | INTEGER(iwp) :: jc !< index variable along y on coarser grid |
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423 | INTEGER(iwp) :: k !< index variable along z on finer grid |
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424 | INTEGER(iwp) :: kc !< index variable along z on coarser grid |
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425 | INTEGER(iwp) :: l !< index indicating finer grid level |
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426 | INTEGER(iwp) :: km1 !< index variable along z dimension (k-1 on finer level) |
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427 | INTEGER(iwp) :: kp1 !< index variable along z dimension (k+1 on finer level) |
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428 | |
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429 | |
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430 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
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431 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
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432 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: & |
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433 | f_mg !< Residual on coarser grid level |
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434 | |
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435 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level+1)+1, & |
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436 | nys_mg(grid_level+1)-1:nyn_mg(grid_level+1)+1, & |
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437 | nxl_mg(grid_level+1)-1:nxr_mg(grid_level+1)+1) :: & |
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438 | r !< Residual on finer grid level |
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439 | |
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440 | ! |
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441 | !-- Interpolate the residual |
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442 | l = grid_level |
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443 | |
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444 | CALL cpu_log( log_point_s(54), 'restrict', 'start' ) |
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445 | ! |
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446 | !-- No wall treatment |
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447 | !$OMP PARALLEL PRIVATE (i,j,k,ic,jc,kc,km1,kp1) |
---|
448 | !$OMP DO SCHEDULE( STATIC ) |
---|
449 | DO ic = nxl_mg(l), nxr_mg(l) |
---|
450 | i = 2*ic |
---|
451 | DO jc = nys_mg(l), nyn_mg(l) |
---|
452 | ! |
---|
453 | !-- Calculation for the first point along k |
---|
454 | j = 2*jc |
---|
455 | ! |
---|
456 | !-- Calculation for the other points along k |
---|
457 | !DIR$ IVDEP |
---|
458 | DO k = ind_even_odd+1, nzt_mg(l+1) ! Fine grid at this point |
---|
459 | km1 = k-ind_even_odd-1 |
---|
460 | kp1 = k-ind_even_odd |
---|
461 | kc = k-ind_even_odd ! Coarse grid index |
---|
462 | |
---|
463 | f_mg(kc,jc,ic) = 1.0_wp / 64.0_wp * ( & |
---|
464 | 8.0_wp * r(k,j,i) & |
---|
465 | + 4.0_wp * ( r(k,j,i-1) + r(k,j,i+1) + & |
---|
466 | r(k,j+1,i) + r(k,j-1,i) ) & |
---|
467 | + 2.0_wp * ( r(k,j-1,i-1) + r(k,j+1,i-1) + & |
---|
468 | r(k,j-1,i+1) + r(k,j+1,i+1) ) & |
---|
469 | + 4.0_wp * r(km1,j,i) & |
---|
470 | + 2.0_wp * ( r(km1,j,i-1) + r(km1,j,i+1) + & |
---|
471 | r(km1,j+1,i) + r(km1,j-1,i) ) & |
---|
472 | + ( r(km1,j-1,i-1) + r(km1,j+1,i-1) + & |
---|
473 | r(km1,j-1,i+1) + r(km1,j+1,i+1) ) & |
---|
474 | + 4.0_wp * r(kp1,j,i) & |
---|
475 | + 2.0_wp * ( r(kp1,j,i-1) + r(kp1,j,i+1) + & |
---|
476 | r(kp1,j+1,i) + r(kp1,j-1,i) ) & |
---|
477 | + ( r(kp1,j-1,i-1) + r(kp1,j+1,i-1) + & |
---|
478 | r(kp1,j-1,i+1) + r(kp1,j+1,i+1) ) & |
---|
479 | ) |
---|
480 | ENDDO |
---|
481 | ENDDO |
---|
482 | ENDDO |
---|
483 | !$OMP ENDDO |
---|
484 | !$OMP END PARALLEL |
---|
485 | |
---|
486 | ! |
---|
487 | !-- Ghost point exchange |
---|
488 | CALL exchange_horiz( f_mg, 1) |
---|
489 | ! |
---|
490 | !-- Horizontal boundary conditions |
---|
491 | IF ( .NOT. bc_lr_cyc ) THEN |
---|
492 | IF ( inflow_l .OR. outflow_l .OR. nest_bound_l .OR. & |
---|
493 | force_bound_l ) THEN |
---|
494 | f_mg(:,:,nxl_mg(l)-1) = f_mg(:,:,nxl_mg(l)) |
---|
495 | ENDIF |
---|
496 | IF ( inflow_r .OR. outflow_r .OR. nest_bound_r .OR. & |
---|
497 | force_bound_r ) THEN |
---|
498 | f_mg(:,:,nxr_mg(l)+1) = f_mg(:,:,nxr_mg(l)) |
---|
499 | ENDIF |
---|
500 | ENDIF |
---|
501 | |
---|
502 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
503 | IF ( inflow_n .OR. outflow_n .OR. nest_bound_n .OR. & |
---|
504 | force_bound_n ) THEN |
---|
505 | f_mg(:,nyn_mg(l)+1,:) = f_mg(:,nyn_mg(l),:) |
---|
506 | ENDIF |
---|
507 | IF ( inflow_s .OR. outflow_s .OR. nest_bound_s .OR. & |
---|
508 | force_bound_s ) THEN |
---|
509 | f_mg(:,nys_mg(l)-1,:) = f_mg(:,nys_mg(l),:) |
---|
510 | ENDIF |
---|
511 | ENDIF |
---|
512 | |
---|
513 | ! |
---|
514 | !-- Boundary conditions at bottom and top of the domain. |
---|
515 | !-- These points are not handled by the above loop. Points may be within |
---|
516 | !-- buildings, but that doesn't matter. Remark: f_mg is ordered sequentielly |
---|
517 | !-- after interpolation on coarse grid (is ordered in odd-even blocks further |
---|
518 | !-- below). |
---|
519 | IF ( ibc_p_b == 1 ) THEN |
---|
520 | f_mg(nzb,:,: ) = f_mg(nzb+1,:,:) |
---|
521 | ELSE |
---|
522 | f_mg(nzb,:,: ) = 0.0_wp |
---|
523 | ENDIF |
---|
524 | |
---|
525 | IF ( ibc_p_t == 1 ) THEN |
---|
526 | f_mg(nzt_mg(l)+1,:,: ) = f_mg(nzt_mg(l),:,:) |
---|
527 | ELSE |
---|
528 | f_mg(nzt_mg(l)+1,:,: ) = 0.0_wp |
---|
529 | ENDIF |
---|
530 | |
---|
531 | CALL cpu_log( log_point_s(54), 'restrict', 'stop' ) |
---|
532 | ! |
---|
533 | !-- Since residual is in sequential order after interpolation, an additional |
---|
534 | !-- sorting in odd-even blocks along z dimension is required at this point. |
---|
535 | CALL sort_k_to_even_odd_blocks( f_mg , l) |
---|
536 | |
---|
537 | END SUBROUTINE restrict |
---|
538 | |
---|
539 | |
---|
540 | !------------------------------------------------------------------------------! |
---|
541 | ! Description: |
---|
542 | ! ------------ |
---|
543 | !> Interpolates the correction of the perturbation pressure |
---|
544 | !> to the next finer grid. |
---|
545 | !------------------------------------------------------------------------------! |
---|
546 | SUBROUTINE prolong( p, temp ) |
---|
547 | |
---|
548 | |
---|
549 | USE control_parameters, & |
---|
550 | ONLY: bc_lr_cyc, bc_ns_cyc, ibc_p_b, ibc_p_t |
---|
551 | USE indices, & |
---|
552 | ONLY: nxl_mg, nxr_mg, nys_mg, nyn_mg, nzb, nzt_mg |
---|
553 | |
---|
554 | IMPLICIT NONE |
---|
555 | |
---|
556 | INTEGER(iwp) :: i !< index variable along x on coarser grid level |
---|
557 | INTEGER(iwp) :: j !< index variable along y on coarser grid level |
---|
558 | INTEGER(iwp) :: k !< index variable along z on coarser grid level |
---|
559 | INTEGER(iwp) :: l !< index indicating finer grid level |
---|
560 | INTEGER(iwp) :: kp1 !< index variable along z |
---|
561 | INTEGER(iwp) :: ke !< index for prolog even |
---|
562 | INTEGER(iwp) :: ko !< index for prolog odd |
---|
563 | |
---|
564 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level-1)+1, & |
---|
565 | nys_mg(grid_level-1)-1:nyn_mg(grid_level-1)+1, & |
---|
566 | nxl_mg(grid_level-1)-1:nxr_mg(grid_level-1)+1 ) :: & |
---|
567 | p !< perturbation pressure on coarser grid level |
---|
568 | |
---|
569 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
570 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
571 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: & |
---|
572 | temp !< perturbation pressure on finer grid level |
---|
573 | |
---|
574 | |
---|
575 | CALL cpu_log( log_point_s(55), 'prolong', 'start' ) |
---|
576 | |
---|
577 | ! |
---|
578 | !-- First, store elements of the coarser grid on the next finer grid |
---|
579 | l = grid_level |
---|
580 | ind_even_odd = even_odd_level(grid_level-1) |
---|
581 | |
---|
582 | !$OMP PARALLEL PRIVATE (i,j,k,kp1,ke,ko) |
---|
583 | !$OMP DO |
---|
584 | DO i = nxl_mg(l-1), nxr_mg(l-1) |
---|
585 | DO j = nys_mg(l-1), nyn_mg(l-1) |
---|
586 | |
---|
587 | !DIR$ IVDEP |
---|
588 | DO k = ind_even_odd+1, nzt_mg(l-1) |
---|
589 | kp1 = k - ind_even_odd |
---|
590 | ke = 2 * ( k-ind_even_odd - 1 ) + 1 |
---|
591 | ko = 2 * k - 1 |
---|
592 | ! |
---|
593 | !-- Points of the coarse grid are directly stored on the next finer |
---|
594 | !-- grid |
---|
595 | temp(ko,2*j,2*i) = p(k,j,i) |
---|
596 | ! |
---|
597 | !-- Points between two coarse-grid points |
---|
598 | temp(ko,2*j,2*i+1) = 0.5_wp * ( p(k,j,i) + p(k,j,i+1) ) |
---|
599 | temp(ko,2*j+1,2*i) = 0.5_wp * ( p(k,j,i) + p(k,j+1,i) ) |
---|
600 | temp(ke,2*j,2*i) = 0.5_wp * ( p(k,j,i) + p(kp1,j,i) ) |
---|
601 | ! |
---|
602 | !-- Points in the center of the planes stretched by four points |
---|
603 | !-- of the coarse grid cube |
---|
604 | temp(ko,2*j+1,2*i+1) = 0.25_wp * ( p(k,j,i) + p(k,j,i+1) + & |
---|
605 | p(k,j+1,i) + p(k,j+1,i+1) ) |
---|
606 | temp(ke,2*j,2*i+1) = 0.25_wp * ( p(k,j,i) + p(k,j,i+1) + & |
---|
607 | p(kp1,j,i) + p(kp1,j,i+1) ) |
---|
608 | temp(ke,2*j+1,2*i) = 0.25_wp * ( p(k,j,i) + p(k,j+1,i) + & |
---|
609 | p(kp1,j,i) + p(kp1,j+1,i) ) |
---|
610 | ! |
---|
611 | !-- Points in the middle of coarse grid cube |
---|
612 | temp(ke,2*j+1,2*i+1) = 0.125_wp * & |
---|
613 | ( p(k,j,i) + p(k,j,i+1) + & |
---|
614 | p(k,j+1,i) + p(k,j+1,i+1) + & |
---|
615 | 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 |
---|
627 | !-- grid |
---|
628 | temp(ko,2*j,2*i) = p(k,j,i) |
---|
629 | ! |
---|
630 | !-- Points between two coarse-grid points |
---|
631 | temp(ko,2*j,2*i+1) = 0.5_wp * ( p(k,j,i) + p(k,j,i+1) ) |
---|
632 | temp(ko,2*j+1,2*i) = 0.5_wp * ( p(k,j,i) + p(k,j+1,i) ) |
---|
633 | temp(ke,2*j,2*i) = 0.5_wp * ( p(k,j,i) + p(kp1,j,i) ) |
---|
634 | ! |
---|
635 | !-- Points in the center of the planes stretched by four points |
---|
636 | !-- of the coarse grid cube |
---|
637 | temp(ko,2*j+1,2*i+1) = 0.25_wp * ( p(k,j,i) + p(k,j,i+1) + & |
---|
638 | p(k,j+1,i) + p(k,j+1,i+1) ) |
---|
639 | temp(ke,2*j,2*i+1) = 0.25_wp * ( p(k,j,i) + p(k,j,i+1) + & |
---|
640 | p(kp1,j,i) + p(kp1,j,i+1) ) |
---|
641 | temp(ke,2*j+1,2*i) = 0.25_wp * ( p(k,j,i) + p(k,j+1,i) + & |
---|
642 | p(kp1,j,i) + p(kp1,j+1,i) ) |
---|
643 | ! |
---|
644 | !-- Points in the middle of coarse grid cube |
---|
645 | temp(ke,2*j+1,2*i+1) = 0.125_wp * & |
---|
646 | ( p(k,j,i) + p(k,j,i+1) + & |
---|
647 | p(k,j+1,i) + p(k,j+1,i+1) + & |
---|
648 | p(kp1,j,i) + p(kp1,j,i+1) + & |
---|
649 | p(kp1,j+1,i) + p(kp1,j+1,i+1) ) |
---|
650 | |
---|
651 | ENDDO |
---|
652 | |
---|
653 | ENDDO |
---|
654 | ENDDO |
---|
655 | !$OMP END PARALLEL |
---|
656 | |
---|
657 | ind_even_odd = even_odd_level(grid_level) |
---|
658 | ! |
---|
659 | !-- Horizontal boundary conditions |
---|
660 | CALL exchange_horiz( temp, 1) |
---|
661 | |
---|
662 | IF ( .NOT. bc_lr_cyc ) THEN |
---|
663 | IF ( inflow_l .OR. outflow_l .OR. nest_bound_l .OR. & |
---|
664 | force_bound_l ) THEN |
---|
665 | temp(:,:,nxl_mg(l)-1) = temp(:,:,nxl_mg(l)) |
---|
666 | ENDIF |
---|
667 | IF ( inflow_r .OR. outflow_r .OR. nest_bound_r .OR. & |
---|
668 | force_bound_r ) THEN |
---|
669 | temp(:,:,nxr_mg(l)+1) = temp(:,:,nxr_mg(l)) |
---|
670 | ENDIF |
---|
671 | ENDIF |
---|
672 | |
---|
673 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
674 | IF ( inflow_n .OR. outflow_n .OR. nest_bound_n .OR. & |
---|
675 | force_bound_n ) THEN |
---|
676 | temp(:,nyn_mg(l)+1,:) = temp(:,nyn_mg(l),:) |
---|
677 | ENDIF |
---|
678 | IF ( inflow_s .OR. outflow_s .OR. nest_bound_s .OR. & |
---|
679 | force_bound_s ) THEN |
---|
680 | temp(:,nys_mg(l)-1,:) = temp(:,nys_mg(l),:) |
---|
681 | ENDIF |
---|
682 | ENDIF |
---|
683 | |
---|
684 | ! |
---|
685 | !-- Bottom and top boundary conditions |
---|
686 | IF ( ibc_p_b == 1 ) THEN |
---|
687 | ! |
---|
688 | !-- equivalent to temp(nzb,:,: ) = temp(nzb+1,:,:) |
---|
689 | temp(nzb,:,: ) = temp(ind_even_odd+1,:,:) |
---|
690 | ELSE |
---|
691 | temp(nzb,:,: ) = 0.0_wp |
---|
692 | ENDIF |
---|
693 | |
---|
694 | IF ( ibc_p_t == 1 ) THEN |
---|
695 | ! |
---|
696 | !-- equivalent to temp(nzt_mg(l)+1,:,: ) = temp(nzt_mg(l),:,:) |
---|
697 | temp(nzt_mg(l)+1,:,: ) = temp(ind_even_odd,:,:) |
---|
698 | ELSE |
---|
699 | temp(nzt_mg(l)+1,:,: ) = 0.0_wp |
---|
700 | ENDIF |
---|
701 | |
---|
702 | CALL cpu_log( log_point_s(55), 'prolong', 'stop' ) |
---|
703 | |
---|
704 | END SUBROUTINE prolong |
---|
705 | |
---|
706 | |
---|
707 | !------------------------------------------------------------------------------! |
---|
708 | ! Description: |
---|
709 | ! ------------ |
---|
710 | !> Relaxation method for the multigrid scheme. A Gauss-Seidel iteration with |
---|
711 | !> 3D-Red-Black decomposition (GS-RB) is used. |
---|
712 | !------------------------------------------------------------------------------! |
---|
713 | SUBROUTINE redblack( f_mg, p_mg ) |
---|
714 | |
---|
715 | |
---|
716 | USE arrays_3d, & |
---|
717 | ONLY: f1_mg, f2_mg, f3_mg, rho_air_mg |
---|
718 | |
---|
719 | USE control_parameters, & |
---|
720 | ONLY: bc_lr_cyc, bc_ns_cyc, ibc_p_b, ibc_p_t, ngsrb |
---|
721 | |
---|
722 | USE grid_variables, & |
---|
723 | ONLY: ddx2_mg, ddy2_mg |
---|
724 | |
---|
725 | USE indices, & |
---|
726 | ONLY: nxl_mg, nxr_mg, nys_mg, nyn_mg, nzb, nzt_mg |
---|
727 | |
---|
728 | IMPLICIT NONE |
---|
729 | |
---|
730 | INTEGER(iwp) :: color !< grid point color, either red or black |
---|
731 | INTEGER(iwp) :: i !< index variable along x |
---|
732 | INTEGER(iwp) :: ic !< index variable along x |
---|
733 | INTEGER(iwp) :: j !< index variable along y |
---|
734 | INTEGER(iwp) :: jc !< index variable along y |
---|
735 | INTEGER(iwp) :: jj !< index variable along y |
---|
736 | INTEGER(iwp) :: k !< index variable along z |
---|
737 | INTEGER(iwp) :: l !< grid level |
---|
738 | INTEGER(iwp) :: n !< loop variable GauÃ-Seidel iterations |
---|
739 | INTEGER(iwp) :: km1 !< index variable (k-1) |
---|
740 | INTEGER(iwp) :: kp1 !< index variable (k+1) |
---|
741 | |
---|
742 | LOGICAL :: unroll !< flag indicating whether loop unrolling is possible |
---|
743 | |
---|
744 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
745 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
746 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: & |
---|
747 | f_mg !< residual of perturbation pressure |
---|
748 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
749 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
750 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: & |
---|
751 | p_mg !< perturbation pressure |
---|
752 | |
---|
753 | l = grid_level |
---|
754 | |
---|
755 | unroll = ( MOD( nyn_mg(l)-nys_mg(l)+1, 4 ) == 0 .AND. & |
---|
756 | MOD( nxr_mg(l)-nxl_mg(l)+1, 2 ) == 0 ) |
---|
757 | |
---|
758 | DO n = 1, ngsrb |
---|
759 | |
---|
760 | DO color = 1, 2 |
---|
761 | |
---|
762 | IF ( .NOT. unroll ) THEN |
---|
763 | |
---|
764 | CALL cpu_log( log_point_s(36), 'redblack_no_unroll_f', 'start' ) |
---|
765 | ! |
---|
766 | !-- Without unrolling of loops, no cache optimization |
---|
767 | !$OMP PARALLEL PRIVATE (i,j,k,km1,kp1) |
---|
768 | !$OMP DO |
---|
769 | DO i = nxl_mg(l), nxr_mg(l), 2 |
---|
770 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
---|
771 | !DIR$ IVDEP |
---|
772 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
773 | km1 = k-ind_even_odd-1 |
---|
774 | kp1 = k-ind_even_odd |
---|
775 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
776 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
777 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
778 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
779 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
780 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
781 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
782 | - f_mg(k,j,i) ) |
---|
783 | ENDDO |
---|
784 | ENDDO |
---|
785 | ENDDO |
---|
786 | |
---|
787 | !$OMP DO |
---|
788 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
---|
789 | DO j = nys_mg(l) + (color-1), nyn_mg(l), 2 |
---|
790 | !DIR$ IVDEP |
---|
791 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
792 | km1 = k-ind_even_odd-1 |
---|
793 | kp1 = k-ind_even_odd |
---|
794 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
795 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
796 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
797 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
798 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
799 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
800 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
801 | - f_mg(k,j,i) ) |
---|
802 | ENDDO |
---|
803 | ENDDO |
---|
804 | ENDDO |
---|
805 | |
---|
806 | !$OMP DO |
---|
807 | DO i = nxl_mg(l), nxr_mg(l), 2 |
---|
808 | DO j = nys_mg(l) + (color-1), nyn_mg(l), 2 |
---|
809 | !DIR$ IVDEP |
---|
810 | DO k = nzb+1, ind_even_odd |
---|
811 | km1 = k+ind_even_odd |
---|
812 | kp1 = k+ind_even_odd+1 |
---|
813 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
814 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
815 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
816 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
817 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
818 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
819 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
820 | - f_mg(k,j,i) ) |
---|
821 | ENDDO |
---|
822 | ENDDO |
---|
823 | ENDDO |
---|
824 | |
---|
825 | !$OMP DO |
---|
826 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
---|
827 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
---|
828 | !DIR$ IVDEP |
---|
829 | DO k = nzb+1, ind_even_odd |
---|
830 | km1 = k+ind_even_odd |
---|
831 | kp1 = k+ind_even_odd+1 |
---|
832 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
833 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
834 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
835 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
836 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
837 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
838 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
839 | - f_mg(k,j,i) ) |
---|
840 | ENDDO |
---|
841 | ENDDO |
---|
842 | ENDDO |
---|
843 | !$OMP END PARALLEL |
---|
844 | |
---|
845 | CALL cpu_log( log_point_s(36), 'redblack_no_unroll_f', 'stop' ) |
---|
846 | |
---|
847 | ELSE |
---|
848 | ! |
---|
849 | !-- Loop unrolling along y, only one i loop for better cache use |
---|
850 | CALL cpu_log( log_point_s(38), 'redblack_unroll_f', 'start' ) |
---|
851 | |
---|
852 | !$OMP PARALLEL PRIVATE (i,j,k,ic,jc,km1,kp1,jj) |
---|
853 | !$OMP DO |
---|
854 | DO ic = nxl_mg(l), nxr_mg(l), 2 |
---|
855 | DO jc = nys_mg(l), nyn_mg(l), 4 |
---|
856 | i = ic |
---|
857 | jj = jc+2-color |
---|
858 | !DIR$ IVDEP |
---|
859 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
860 | km1 = k-ind_even_odd-1 |
---|
861 | kp1 = k-ind_even_odd |
---|
862 | j = jj |
---|
863 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
864 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
865 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
866 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
867 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
868 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
869 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
870 | - f_mg(k,j,i) ) |
---|
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 | j = jj+2 |
---|
898 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
899 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
900 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
901 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
902 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
903 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
904 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
905 | - f_mg(k,j,i) ) |
---|
906 | ENDDO |
---|
907 | |
---|
908 | i = ic |
---|
909 | jj = jc+color-1 |
---|
910 | !DIR$ IVDEP |
---|
911 | DO k = nzb+1, ind_even_odd |
---|
912 | km1 = k+ind_even_odd |
---|
913 | kp1 = k+ind_even_odd+1 |
---|
914 | j = jj |
---|
915 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
916 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
917 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
918 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
919 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
920 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
921 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
922 | - f_mg(k,j,i) ) |
---|
923 | j = jj+2 |
---|
924 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
925 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
926 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
927 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
928 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
929 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
930 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
931 | - f_mg(k,j,i) ) |
---|
932 | ENDDO |
---|
933 | |
---|
934 | i = ic+1 |
---|
935 | jj = jc+2-color |
---|
936 | !DIR$ IVDEP |
---|
937 | DO k = nzb+1, ind_even_odd |
---|
938 | km1 = k+ind_even_odd |
---|
939 | kp1 = k+ind_even_odd+1 |
---|
940 | j = jj |
---|
941 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
942 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
943 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
944 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
945 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
946 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
947 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
948 | - f_mg(k,j,i) ) |
---|
949 | j = jj+2 |
---|
950 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
951 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
952 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
953 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
954 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
955 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
956 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
957 | - f_mg(k,j,i) ) |
---|
958 | ENDDO |
---|
959 | |
---|
960 | ENDDO |
---|
961 | ENDDO |
---|
962 | !$OMP END PARALLEL |
---|
963 | |
---|
964 | CALL cpu_log( log_point_s(38), 'redblack_unroll_f', 'stop' ) |
---|
965 | |
---|
966 | ENDIF |
---|
967 | |
---|
968 | ! |
---|
969 | !-- Horizontal boundary conditions |
---|
970 | CALL special_exchange_horiz( p_mg, color ) |
---|
971 | |
---|
972 | IF ( .NOT. bc_lr_cyc ) THEN |
---|
973 | IF ( inflow_l .OR. outflow_l .OR. nest_bound_l .OR. & |
---|
974 | force_bound_l ) THEN |
---|
975 | p_mg(:,:,nxl_mg(l)-1) = p_mg(:,:,nxl_mg(l)) |
---|
976 | ENDIF |
---|
977 | IF ( inflow_r .OR. outflow_r .OR. nest_bound_r .OR. & |
---|
978 | force_bound_r ) THEN |
---|
979 | p_mg(:,:,nxr_mg(l)+1) = p_mg(:,:,nxr_mg(l)) |
---|
980 | ENDIF |
---|
981 | ENDIF |
---|
982 | |
---|
983 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
984 | IF ( inflow_n .OR. outflow_n .OR. nest_bound_n .OR. & |
---|
985 | force_bound_n ) THEN |
---|
986 | p_mg(:,nyn_mg(l)+1,:) = p_mg(:,nyn_mg(l),:) |
---|
987 | ENDIF |
---|
988 | IF ( inflow_s .OR. outflow_s .OR. nest_bound_s .OR. & |
---|
989 | force_bound_s ) THEN |
---|
990 | p_mg(:,nys_mg(l)-1,:) = p_mg(:,nys_mg(l),:) |
---|
991 | ENDIF |
---|
992 | ENDIF |
---|
993 | |
---|
994 | ! |
---|
995 | !-- Bottom and top boundary conditions |
---|
996 | IF ( ibc_p_b == 1 ) THEN |
---|
997 | ! |
---|
998 | !-- equivalent to p_mg(nzb,:,: ) = p_mg(nzb+1,:,:) |
---|
999 | p_mg(nzb,:,: ) = p_mg(ind_even_odd+1,:,:) |
---|
1000 | ELSE |
---|
1001 | p_mg(nzb,:,: ) = 0.0_wp |
---|
1002 | ENDIF |
---|
1003 | |
---|
1004 | IF ( ibc_p_t == 1 ) THEN |
---|
1005 | ! |
---|
1006 | !-- equivalent to p_mg(nzt_mg(l)+1,:,: ) = p_mg(nzt_mg(l),:,:) |
---|
1007 | p_mg(nzt_mg(l)+1,:,: ) = p_mg(ind_even_odd,:,:) |
---|
1008 | ELSE |
---|
1009 | p_mg(nzt_mg(l)+1,:,: ) = 0.0_wp |
---|
1010 | ENDIF |
---|
1011 | |
---|
1012 | ENDDO |
---|
1013 | |
---|
1014 | ENDDO |
---|
1015 | |
---|
1016 | END SUBROUTINE redblack |
---|
1017 | |
---|
1018 | |
---|
1019 | !------------------------------------------------------------------------------! |
---|
1020 | ! Description: |
---|
1021 | ! ------------ |
---|
1022 | !> Sort k-Dimension from sequential into blocks of even and odd. |
---|
1023 | !> This is required to vectorize the red-black subroutine. |
---|
1024 | !> Version for 3D-REAL arrays |
---|
1025 | !------------------------------------------------------------------------------! |
---|
1026 | SUBROUTINE sort_k_to_even_odd_blocks( p_mg , glevel ) |
---|
1027 | |
---|
1028 | |
---|
1029 | USE control_parameters, & |
---|
1030 | ONLY: grid_level |
---|
1031 | |
---|
1032 | USE indices, & |
---|
1033 | ONLY: nxl_mg, nxr_mg, nys_mg, nyn_mg, nzb, 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, & |
---|
1040 | nys_mg(glevel)-1:nyn_mg(glevel)+1, & |
---|
1041 | nxl_mg(glevel)-1:nxr_mg(glevel)+1) :: & |
---|
1042 | p_mg !< array to be sorted |
---|
1043 | ! |
---|
1044 | !-- Local variables |
---|
1045 | INTEGER(iwp) :: i !< index variable along x |
---|
1046 | INTEGER(iwp) :: j !< index variable along y |
---|
1047 | INTEGER(iwp) :: k !< index variable along z |
---|
1048 | INTEGER(iwp) :: l !< grid level |
---|
1049 | INTEGER(iwp) :: ind !< index variable along z |
---|
1050 | REAL(wp), DIMENSION(nzb:nzt_mg(glevel)+1) :: tmp !< odd-even sorted temporary array |
---|
1051 | |
---|
1052 | |
---|
1053 | CALL cpu_log( log_point_s(52), 'sort_k_to_even_odd', 'start' ) |
---|
1054 | |
---|
1055 | l = glevel |
---|
1056 | ind_even_odd = even_odd_level(l) |
---|
1057 | |
---|
1058 | !$OMP PARALLEL PRIVATE (i,j,k,ind,tmp) |
---|
1059 | !$OMP DO |
---|
1060 | DO i = nxl_mg(l)-1, nxr_mg(l)+1 |
---|
1061 | DO j = nys_mg(l)-1, nyn_mg(l)+1 |
---|
1062 | |
---|
1063 | ! |
---|
1064 | !-- Sort the data with even k index |
---|
1065 | ind = nzb-1 |
---|
1066 | DO k = nzb, nzt_mg(l), 2 |
---|
1067 | ind = ind + 1 |
---|
1068 | tmp(ind) = p_mg(k,j,i) |
---|
1069 | ENDDO |
---|
1070 | ! |
---|
1071 | !-- Sort the data with odd k index |
---|
1072 | DO k = nzb+1, nzt_mg(l)+1, 2 |
---|
1073 | ind = ind + 1 |
---|
1074 | tmp(ind) = p_mg(k,j,i) |
---|
1075 | ENDDO |
---|
1076 | |
---|
1077 | p_mg(:,j,i) = tmp |
---|
1078 | |
---|
1079 | ENDDO |
---|
1080 | ENDDO |
---|
1081 | !$OMP END PARALLEL |
---|
1082 | |
---|
1083 | CALL cpu_log( log_point_s(52), 'sort_k_to_even_odd', 'stop' ) |
---|
1084 | |
---|
1085 | END SUBROUTINE sort_k_to_even_odd_blocks |
---|
1086 | |
---|
1087 | |
---|
1088 | !------------------------------------------------------------------------------! |
---|
1089 | ! Description: |
---|
1090 | ! ------------ |
---|
1091 | !> Sort k-Dimension from sequential into blocks of even and odd. |
---|
1092 | !> This is required to vectorize the red-black subroutine. |
---|
1093 | !> Version for 1D-REAL arrays |
---|
1094 | !------------------------------------------------------------------------------! |
---|
1095 | SUBROUTINE sort_k_to_even_odd_blocks_1d( f_mg, f_mg_b, glevel ) |
---|
1096 | |
---|
1097 | |
---|
1098 | USE indices, & |
---|
1099 | ONLY: nzb, nzt_mg |
---|
1100 | |
---|
1101 | IMPLICIT NONE |
---|
1102 | |
---|
1103 | INTEGER(iwp), INTENT(IN) :: glevel !< grid level |
---|
1104 | |
---|
1105 | REAL(wp), DIMENSION(nzb+1:nzt_mg(glevel)) :: f_mg !< 1D input array |
---|
1106 | REAL(wp), DIMENSION(nzb:nzt_mg(glevel)+1) :: f_mg_b !< 1D output array |
---|
1107 | |
---|
1108 | ! |
---|
1109 | !-- Local variables |
---|
1110 | INTEGER(iwp) :: ind !< index variable along z |
---|
1111 | INTEGER(iwp) :: k !< index variable along z |
---|
1112 | |
---|
1113 | |
---|
1114 | ind = nzb - 1 |
---|
1115 | ! |
---|
1116 | !-- Sort the data with even k index |
---|
1117 | DO k = nzb, nzt_mg(glevel), 2 |
---|
1118 | ind = ind + 1 |
---|
1119 | IF ( k >= nzb+1 .AND. k <= nzt_mg(glevel) ) THEN |
---|
1120 | f_mg_b(ind) = f_mg(k) |
---|
1121 | ENDIF |
---|
1122 | ENDDO |
---|
1123 | ! |
---|
1124 | !-- Sort the data with odd k index |
---|
1125 | DO k = nzb+1, nzt_mg(glevel)+1, 2 |
---|
1126 | ind = ind + 1 |
---|
1127 | IF( k >= nzb+1 .AND. k <= nzt_mg(glevel) ) THEN |
---|
1128 | f_mg_b(ind) = f_mg(k) |
---|
1129 | ENDIF |
---|
1130 | ENDDO |
---|
1131 | |
---|
1132 | END SUBROUTINE sort_k_to_even_odd_blocks_1d |
---|
1133 | |
---|
1134 | |
---|
1135 | !------------------------------------------------------------------------------! |
---|
1136 | ! Description: |
---|
1137 | ! ------------ |
---|
1138 | !> Sort k-Dimension from sequential into blocks of even and odd. |
---|
1139 | !> This is required to vectorize the red-black subroutine. |
---|
1140 | !> Version for 2D-INTEGER arrays |
---|
1141 | !------------------------------------------------------------------------------! |
---|
1142 | SUBROUTINE sort_k_to_even_odd_blocks_int( i_mg , glevel ) |
---|
1143 | |
---|
1144 | |
---|
1145 | USE control_parameters, & |
---|
1146 | ONLY: grid_level |
---|
1147 | |
---|
1148 | USE indices, & |
---|
1149 | ONLY: nxl_mg, nxr_mg, nys_mg, nyn_mg, nzb, nzt_mg |
---|
1150 | |
---|
1151 | IMPLICIT NONE |
---|
1152 | |
---|
1153 | INTEGER(iwp), INTENT(IN) :: glevel !< grid level |
---|
1154 | |
---|
1155 | INTEGER(iwp), DIMENSION(nzb:nzt_mg(glevel)+1, & |
---|
1156 | nys_mg(glevel)-1:nyn_mg(glevel)+1, & |
---|
1157 | nxl_mg(glevel)-1:nxr_mg(glevel)+1) :: & |
---|
1158 | i_mg !< array to be sorted |
---|
1159 | ! |
---|
1160 | !-- Local variables |
---|
1161 | INTEGER(iwp) :: i !< index variabel along x |
---|
1162 | INTEGER(iwp) :: j !< index variable along y |
---|
1163 | INTEGER(iwp) :: k !< index variable along z |
---|
1164 | INTEGER(iwp) :: l !< grid level |
---|
1165 | INTEGER(iwp) :: ind !< index variable along z |
---|
1166 | INTEGER(iwp),DIMENSION(nzb:nzt_mg(glevel)+1) :: tmp !< temporary odd-even sorted array |
---|
1167 | |
---|
1168 | |
---|
1169 | CALL cpu_log( log_point_s(52), 'sort_k_to_even_odd', 'start' ) |
---|
1170 | |
---|
1171 | l = glevel |
---|
1172 | ind_even_odd = even_odd_level(l) |
---|
1173 | |
---|
1174 | DO i = nxl_mg(l)-1, nxr_mg(l)+1 |
---|
1175 | DO j = nys_mg(l)-1, nyn_mg(l)+1 |
---|
1176 | |
---|
1177 | ! |
---|
1178 | !-- Sort the data with even k index |
---|
1179 | ind = nzb-1 |
---|
1180 | DO k = nzb, nzt_mg(l), 2 |
---|
1181 | ind = ind + 1 |
---|
1182 | tmp(ind) = i_mg(k,j,i) |
---|
1183 | ENDDO |
---|
1184 | ! |
---|
1185 | !++ ATTENTION: Check reason for this error. Remove it or replace WRITE |
---|
1186 | !++ by PALM message |
---|
1187 | #if defined ( __parallel ) |
---|
1188 | IF ( ind /= ind_even_odd ) THEN |
---|
1189 | WRITE (0,*) 'ERROR ==> illegal ind_even_odd ',ind,ind_even_odd,l |
---|
1190 | CALL MPI_ABORT(MPI_COMM_WORLD,i,j) |
---|
1191 | ENDIF |
---|
1192 | #endif |
---|
1193 | ! |
---|
1194 | !-- Sort the data with odd k index |
---|
1195 | DO k = nzb+1, nzt_mg(l)+1, 2 |
---|
1196 | ind = ind + 1 |
---|
1197 | tmp(ind) = i_mg(k,j,i) |
---|
1198 | ENDDO |
---|
1199 | |
---|
1200 | i_mg(:,j,i) = tmp |
---|
1201 | |
---|
1202 | ENDDO |
---|
1203 | ENDDO |
---|
1204 | |
---|
1205 | CALL cpu_log( log_point_s(52), 'sort_k_to_even_odd', 'stop' ) |
---|
1206 | |
---|
1207 | END SUBROUTINE sort_k_to_even_odd_blocks_int |
---|
1208 | |
---|
1209 | |
---|
1210 | !------------------------------------------------------------------------------! |
---|
1211 | ! Description: |
---|
1212 | ! ------------ |
---|
1213 | !> Sort k-dimension from blocks of even and odd into sequential |
---|
1214 | !------------------------------------------------------------------------------! |
---|
1215 | SUBROUTINE sort_k_to_sequential( p_mg ) |
---|
1216 | |
---|
1217 | |
---|
1218 | USE control_parameters, & |
---|
1219 | ONLY: grid_level |
---|
1220 | |
---|
1221 | USE indices, & |
---|
1222 | ONLY: nxl_mg, nxr_mg, nys_mg, nyn_mg, nzb, nzt_mg |
---|
1223 | |
---|
1224 | IMPLICIT NONE |
---|
1225 | |
---|
1226 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
1227 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
1228 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: & |
---|
1229 | p_mg !< array to be sorted |
---|
1230 | ! |
---|
1231 | !-- Local variables |
---|
1232 | INTEGER(iwp) :: i !< index variable along x |
---|
1233 | INTEGER(iwp) :: j !< index variable along y |
---|
1234 | INTEGER(iwp) :: k !< index variable along z |
---|
1235 | INTEGER(iwp) :: l !< grid level |
---|
1236 | INTEGER(iwp) :: ind !< index variable along z |
---|
1237 | |
---|
1238 | REAL(wp),DIMENSION(nzb:nzt_mg(grid_level)+1) :: tmp |
---|
1239 | |
---|
1240 | |
---|
1241 | l = grid_level |
---|
1242 | |
---|
1243 | !$OMP PARALLEL PRIVATE (i,j,k,ind,tmp) |
---|
1244 | !$OMP DO |
---|
1245 | DO i = nxl_mg(l)-1, nxr_mg(l)+1 |
---|
1246 | DO j = nys_mg(l)-1, nyn_mg(l)+1 |
---|
1247 | |
---|
1248 | ind = nzb - 1 |
---|
1249 | tmp = p_mg(:,j,i) |
---|
1250 | DO k = nzb, nzt_mg(l), 2 |
---|
1251 | ind = ind + 1 |
---|
1252 | p_mg(k,j,i) = tmp(ind) |
---|
1253 | ENDDO |
---|
1254 | |
---|
1255 | DO k = nzb+1, nzt_mg(l)+1, 2 |
---|
1256 | ind = ind + 1 |
---|
1257 | p_mg(k,j,i) = tmp(ind) |
---|
1258 | ENDDO |
---|
1259 | ENDDO |
---|
1260 | ENDDO |
---|
1261 | !$OMP END PARALLEL |
---|
1262 | |
---|
1263 | END SUBROUTINE sort_k_to_sequential |
---|
1264 | |
---|
1265 | |
---|
1266 | !------------------------------------------------------------------------------! |
---|
1267 | ! Description: |
---|
1268 | ! ------------ |
---|
1269 | !> Gather subdomain data from all PEs. |
---|
1270 | !------------------------------------------------------------------------------! |
---|
1271 | SUBROUTINE mg_gather( f2, f2_sub ) |
---|
1272 | |
---|
1273 | USE control_parameters, & |
---|
1274 | ONLY: grid_level |
---|
1275 | |
---|
1276 | USE cpulog, & |
---|
1277 | ONLY: cpu_log, log_point_s |
---|
1278 | |
---|
1279 | USE indices, & |
---|
1280 | ONLY: mg_loc_ind, nxl_mg, nxr_mg, nys_mg, nyn_mg, nzb, nzt_mg |
---|
1281 | |
---|
1282 | IMPLICIT NONE |
---|
1283 | |
---|
1284 | INTEGER(iwp) :: i !< |
---|
1285 | INTEGER(iwp) :: il !< |
---|
1286 | INTEGER(iwp) :: ir !< |
---|
1287 | INTEGER(iwp) :: j !< |
---|
1288 | INTEGER(iwp) :: jn !< |
---|
1289 | INTEGER(iwp) :: js !< |
---|
1290 | INTEGER(iwp) :: k !< |
---|
1291 | INTEGER(iwp) :: nwords !< |
---|
1292 | |
---|
1293 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
1294 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
1295 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: f2 !< |
---|
1296 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
1297 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
1298 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: f2_l !< |
---|
1299 | |
---|
1300 | REAL(wp), DIMENSION(nzb:mg_loc_ind(5,myid)+1, & |
---|
1301 | mg_loc_ind(3,myid)-1:mg_loc_ind(4,myid)+1, & |
---|
1302 | mg_loc_ind(1,myid)-1:mg_loc_ind(2,myid)+1) :: f2_sub !< |
---|
1303 | |
---|
1304 | |
---|
1305 | #if defined( __parallel ) |
---|
1306 | CALL cpu_log( log_point_s(34), 'mg_gather', 'start' ) |
---|
1307 | |
---|
1308 | f2_l = 0.0_wp |
---|
1309 | |
---|
1310 | ! |
---|
1311 | !-- Store the local subdomain array on the total array |
---|
1312 | js = mg_loc_ind(3,myid) |
---|
1313 | IF ( south_border_pe ) js = js - 1 |
---|
1314 | jn = mg_loc_ind(4,myid) |
---|
1315 | IF ( north_border_pe ) jn = jn + 1 |
---|
1316 | il = mg_loc_ind(1,myid) |
---|
1317 | IF ( left_border_pe ) il = il - 1 |
---|
1318 | ir = mg_loc_ind(2,myid) |
---|
1319 | IF ( right_border_pe ) ir = ir + 1 |
---|
1320 | DO i = il, ir |
---|
1321 | DO j = js, jn |
---|
1322 | DO k = nzb, nzt_mg(grid_level)+1 |
---|
1323 | f2_l(k,j,i) = f2_sub(k,j,i) |
---|
1324 | ENDDO |
---|
1325 | ENDDO |
---|
1326 | ENDDO |
---|
1327 | |
---|
1328 | ! |
---|
1329 | !-- Find out the number of array elements of the total array |
---|
1330 | nwords = SIZE( f2 ) |
---|
1331 | |
---|
1332 | ! |
---|
1333 | !-- Gather subdomain data from all PEs |
---|
1334 | IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr ) |
---|
1335 | CALL MPI_ALLREDUCE( f2_l(nzb,nys_mg(grid_level)-1,nxl_mg(grid_level)-1), & |
---|
1336 | f2(nzb,nys_mg(grid_level)-1,nxl_mg(grid_level)-1), & |
---|
1337 | nwords, MPI_REAL, MPI_SUM, comm2d, ierr ) |
---|
1338 | |
---|
1339 | CALL cpu_log( log_point_s(34), 'mg_gather', 'stop' ) |
---|
1340 | #endif |
---|
1341 | |
---|
1342 | END SUBROUTINE mg_gather |
---|
1343 | |
---|
1344 | |
---|
1345 | |
---|
1346 | !------------------------------------------------------------------------------! |
---|
1347 | ! Description: |
---|
1348 | ! ------------ |
---|
1349 | !> @todo It might be possible to improve the speed of this routine by using |
---|
1350 | !> non-blocking communication |
---|
1351 | !------------------------------------------------------------------------------! |
---|
1352 | SUBROUTINE mg_scatter( p2, p2_sub ) |
---|
1353 | |
---|
1354 | USE control_parameters, & |
---|
1355 | ONLY: grid_level |
---|
1356 | |
---|
1357 | USE cpulog, & |
---|
1358 | ONLY: cpu_log, log_point_s |
---|
1359 | |
---|
1360 | USE indices, & |
---|
1361 | ONLY: mg_loc_ind, nxl_mg, nxr_mg, nys_mg, nyn_mg, nzb, nzt_mg |
---|
1362 | |
---|
1363 | IMPLICIT NONE |
---|
1364 | |
---|
1365 | INTEGER(iwp) :: nwords !< |
---|
1366 | |
---|
1367 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level-1)+1, & |
---|
1368 | nys_mg(grid_level-1)-1:nyn_mg(grid_level-1)+1, & |
---|
1369 | nxl_mg(grid_level-1)-1:nxr_mg(grid_level-1)+1) :: p2 !< |
---|
1370 | |
---|
1371 | REAL(wp), DIMENSION(nzb:mg_loc_ind(5,myid)+1, & |
---|
1372 | mg_loc_ind(3,myid)-1:mg_loc_ind(4,myid)+1, & |
---|
1373 | mg_loc_ind(1,myid)-1:mg_loc_ind(2,myid)+1) :: p2_sub !< |
---|
1374 | |
---|
1375 | ! |
---|
1376 | !-- Find out the number of array elements of the subdomain array |
---|
1377 | nwords = SIZE( p2_sub ) |
---|
1378 | |
---|
1379 | #if defined( __parallel ) |
---|
1380 | CALL cpu_log( log_point_s(35), 'mg_scatter', 'start' ) |
---|
1381 | |
---|
1382 | p2_sub = p2(:,mg_loc_ind(3,myid)-1:mg_loc_ind(4,myid)+1, & |
---|
1383 | mg_loc_ind(1,myid)-1:mg_loc_ind(2,myid)+1) |
---|
1384 | |
---|
1385 | CALL cpu_log( log_point_s(35), 'mg_scatter', 'stop' ) |
---|
1386 | #endif |
---|
1387 | |
---|
1388 | END SUBROUTINE mg_scatter |
---|
1389 | |
---|
1390 | |
---|
1391 | !------------------------------------------------------------------------------! |
---|
1392 | ! Description: |
---|
1393 | ! ------------ |
---|
1394 | !> This is where the multigrid technique takes place. V- and W- Cycle are |
---|
1395 | !> implemented and steered by the parameter "gamma". Parameter "nue" determines |
---|
1396 | !> the convergence of the multigrid iterative solution. There are nue times |
---|
1397 | !> RB-GS iterations. It should be set to "1" or "2", considering the time effort |
---|
1398 | !> one would like to invest. Last choice shows a very good converging factor, |
---|
1399 | !> but leads to an increase in computing time. |
---|
1400 | !------------------------------------------------------------------------------! |
---|
1401 | RECURSIVE SUBROUTINE next_mg_level( f_mg, p_mg, p3, r ) |
---|
1402 | |
---|
1403 | USE control_parameters, & |
---|
1404 | ONLY: bc_lr_dirrad, bc_lr_raddir, bc_ns_dirrad, bc_ns_raddir, & |
---|
1405 | gamma_mg, grid_level_count, ibc_p_b, ibc_p_t, & |
---|
1406 | maximum_grid_level, mg_switch_to_pe0_level, & |
---|
1407 | mg_switch_to_pe0, nest_domain, ngsrb |
---|
1408 | |
---|
1409 | USE indices, & |
---|
1410 | ONLY: mg_loc_ind, nxl, nxl_mg, nxr, nxr_mg, nys, nys_mg, nyn, & |
---|
1411 | nyn_mg, nzb, nzt, nzt_mg |
---|
1412 | |
---|
1413 | IMPLICIT NONE |
---|
1414 | |
---|
1415 | INTEGER(iwp) :: i !< index variable along x |
---|
1416 | INTEGER(iwp) :: j !< index variable along y |
---|
1417 | INTEGER(iwp) :: k !< index variable along z |
---|
1418 | INTEGER(iwp) :: nxl_mg_save !< |
---|
1419 | INTEGER(iwp) :: nxr_mg_save !< |
---|
1420 | INTEGER(iwp) :: nyn_mg_save !< |
---|
1421 | INTEGER(iwp) :: nys_mg_save !< |
---|
1422 | INTEGER(iwp) :: nzt_mg_save !< |
---|
1423 | |
---|
1424 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
1425 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
1426 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: f_mg !< |
---|
1427 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
1428 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
1429 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: p_mg !< |
---|
1430 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
1431 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
1432 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: p3 !< |
---|
1433 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
1434 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
1435 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: r !< |
---|
1436 | |
---|
1437 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level-1)+1, & |
---|
1438 | nys_mg(grid_level-1)-1:nyn_mg(grid_level-1)+1, & |
---|
1439 | nxl_mg(grid_level-1)-1:nxr_mg(grid_level-1)+1) :: f2 !< |
---|
1440 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level-1)+1, & |
---|
1441 | nys_mg(grid_level-1)-1:nyn_mg(grid_level-1)+1, & |
---|
1442 | nxl_mg(grid_level-1)-1:nxr_mg(grid_level-1)+1) :: p2 !< |
---|
1443 | |
---|
1444 | REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: f2_sub !< |
---|
1445 | REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: p2_sub !< |
---|
1446 | |
---|
1447 | ! |
---|
1448 | !-- Restriction to the coarsest grid |
---|
1449 | 10 IF ( grid_level == 1 ) THEN |
---|
1450 | |
---|
1451 | ! |
---|
1452 | !-- Solution on the coarsest grid. Double the number of Gauss-Seidel |
---|
1453 | !-- iterations in order to get a more accurate solution. |
---|
1454 | ngsrb = 2 * ngsrb |
---|
1455 | |
---|
1456 | ind_even_odd = even_odd_level(grid_level) |
---|
1457 | |
---|
1458 | CALL redblack( f_mg, p_mg ) |
---|
1459 | |
---|
1460 | ngsrb = ngsrb / 2 |
---|
1461 | |
---|
1462 | |
---|
1463 | ELSEIF ( grid_level /= 1 ) THEN |
---|
1464 | |
---|
1465 | grid_level_count(grid_level) = grid_level_count(grid_level) + 1 |
---|
1466 | |
---|
1467 | ! |
---|
1468 | !-- Solution on the actual grid level |
---|
1469 | ind_even_odd = even_odd_level(grid_level) |
---|
1470 | |
---|
1471 | CALL redblack( f_mg, p_mg ) |
---|
1472 | |
---|
1473 | ! |
---|
1474 | !-- Determination of the actual residual |
---|
1475 | CALL resid( f_mg, p_mg, r ) |
---|
1476 | |
---|
1477 | !-- Restriction of the residual (finer grid values!) to the next coarser |
---|
1478 | !-- grid. Therefore, the grid level has to be decremented now. nxl..nzt have |
---|
1479 | !-- to be set to the coarse grid values, because these variables are needed |
---|
1480 | !-- for the exchange of ghost points in routine exchange_horiz |
---|
1481 | grid_level = grid_level - 1 |
---|
1482 | |
---|
1483 | nxl = nxl_mg(grid_level) |
---|
1484 | nys = nys_mg(grid_level) |
---|
1485 | nxr = nxr_mg(grid_level) |
---|
1486 | nyn = nyn_mg(grid_level) |
---|
1487 | nzt = nzt_mg(grid_level) |
---|
1488 | |
---|
1489 | IF ( grid_level == mg_switch_to_pe0_level ) THEN |
---|
1490 | |
---|
1491 | ! |
---|
1492 | !-- From this level on, calculations are done on PE0 only. |
---|
1493 | !-- First, carry out restriction on the subdomain. |
---|
1494 | !-- Therefore, indices of the level have to be changed to subdomain |
---|
1495 | !-- values in between (otherwise, the restrict routine would expect |
---|
1496 | !-- the gathered array) |
---|
1497 | |
---|
1498 | nxl_mg_save = nxl_mg(grid_level) |
---|
1499 | nxr_mg_save = nxr_mg(grid_level) |
---|
1500 | nys_mg_save = nys_mg(grid_level) |
---|
1501 | nyn_mg_save = nyn_mg(grid_level) |
---|
1502 | nzt_mg_save = nzt_mg(grid_level) |
---|
1503 | nxl_mg(grid_level) = mg_loc_ind(1,myid) |
---|
1504 | nxr_mg(grid_level) = mg_loc_ind(2,myid) |
---|
1505 | nys_mg(grid_level) = mg_loc_ind(3,myid) |
---|
1506 | nyn_mg(grid_level) = mg_loc_ind(4,myid) |
---|
1507 | nzt_mg(grid_level) = mg_loc_ind(5,myid) |
---|
1508 | nxl = mg_loc_ind(1,myid) |
---|
1509 | nxr = mg_loc_ind(2,myid) |
---|
1510 | nys = mg_loc_ind(3,myid) |
---|
1511 | nyn = mg_loc_ind(4,myid) |
---|
1512 | nzt = mg_loc_ind(5,myid) |
---|
1513 | |
---|
1514 | ALLOCATE( f2_sub(nzb:nzt_mg(grid_level)+1, & |
---|
1515 | 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 | CALL mg_gather( f2, f2_sub ) |
---|
1535 | |
---|
1536 | ! |
---|
1537 | !-- Set switch for routine exchange_horiz, that no ghostpoint exchange |
---|
1538 | !-- has to be carried out from now on |
---|
1539 | mg_switch_to_pe0 = .TRUE. |
---|
1540 | |
---|
1541 | ! |
---|
1542 | !-- In case of non-cyclic lateral boundary conditions, both in- and |
---|
1543 | !-- outflow conditions have to be used on all PEs after the switch, |
---|
1544 | !-- because then they have the total domain. |
---|
1545 | IF ( bc_lr_dirrad ) THEN |
---|
1546 | inflow_l = .TRUE. |
---|
1547 | inflow_r = .FALSE. |
---|
1548 | outflow_l = .FALSE. |
---|
1549 | outflow_r = .TRUE. |
---|
1550 | ELSEIF ( bc_lr_raddir ) THEN |
---|
1551 | inflow_l = .FALSE. |
---|
1552 | inflow_r = .TRUE. |
---|
1553 | outflow_l = .TRUE. |
---|
1554 | outflow_r = .FALSE. |
---|
1555 | ELSEIF ( nest_domain ) THEN |
---|
1556 | nest_bound_l = .TRUE. |
---|
1557 | nest_bound_r = .TRUE. |
---|
1558 | ELSEIF ( forcing ) THEN |
---|
1559 | force_bound_l = .TRUE. |
---|
1560 | force_bound_r = .TRUE. |
---|
1561 | ENDIF |
---|
1562 | |
---|
1563 | IF ( bc_ns_dirrad ) THEN |
---|
1564 | inflow_n = .TRUE. |
---|
1565 | inflow_s = .FALSE. |
---|
1566 | outflow_n = .FALSE. |
---|
1567 | outflow_s = .TRUE. |
---|
1568 | ELSEIF ( bc_ns_raddir ) THEN |
---|
1569 | inflow_n = .FALSE. |
---|
1570 | inflow_s = .TRUE. |
---|
1571 | outflow_n = .TRUE. |
---|
1572 | outflow_s = .FALSE. |
---|
1573 | ELSEIF ( nest_domain ) THEN |
---|
1574 | nest_bound_s = .TRUE. |
---|
1575 | nest_bound_n = .TRUE. |
---|
1576 | ELSEIF ( forcing ) THEN |
---|
1577 | force_bound_s = .TRUE. |
---|
1578 | force_bound_n = .TRUE. |
---|
1579 | ENDIF |
---|
1580 | |
---|
1581 | DEALLOCATE( f2_sub ) |
---|
1582 | |
---|
1583 | ELSE |
---|
1584 | |
---|
1585 | CALL restrict( f2, r ) |
---|
1586 | |
---|
1587 | ind_even_odd = even_odd_level(grid_level) ! must be after restrict |
---|
1588 | |
---|
1589 | ENDIF |
---|
1590 | |
---|
1591 | p2 = 0.0_wp |
---|
1592 | |
---|
1593 | ! |
---|
1594 | !-- Repeat the same procedure till the coarsest grid is reached |
---|
1595 | CALL next_mg_level( f2, p2, p3, r ) |
---|
1596 | |
---|
1597 | ENDIF |
---|
1598 | |
---|
1599 | ! |
---|
1600 | !-- Now follows the prolongation |
---|
1601 | IF ( grid_level >= 2 ) THEN |
---|
1602 | |
---|
1603 | ! |
---|
1604 | !-- Prolongation of the new residual. The values are transferred |
---|
1605 | !-- from the coarse to the next finer grid. |
---|
1606 | IF ( grid_level == mg_switch_to_pe0_level+1 ) THEN |
---|
1607 | |
---|
1608 | #if defined( __parallel ) |
---|
1609 | ! |
---|
1610 | !-- At this level, the new residual first has to be scattered from |
---|
1611 | !-- PE0 to the other PEs |
---|
1612 | ALLOCATE( p2_sub(nzb:mg_loc_ind(5,myid)+1, & |
---|
1613 | mg_loc_ind(3,myid)-1:mg_loc_ind(4,myid)+1, & |
---|
1614 | mg_loc_ind(1,myid)-1:mg_loc_ind(2,myid)+1) ) |
---|
1615 | |
---|
1616 | CALL mg_scatter( p2, p2_sub ) |
---|
1617 | |
---|
1618 | ! |
---|
1619 | !-- Therefore, indices of the previous level have to be changed to |
---|
1620 | !-- subdomain values in between (otherwise, the prolong routine would |
---|
1621 | !-- expect the gathered array) |
---|
1622 | nxl_mg_save = nxl_mg(grid_level-1) |
---|
1623 | nxr_mg_save = nxr_mg(grid_level-1) |
---|
1624 | nys_mg_save = nys_mg(grid_level-1) |
---|
1625 | nyn_mg_save = nyn_mg(grid_level-1) |
---|
1626 | nzt_mg_save = nzt_mg(grid_level-1) |
---|
1627 | nxl_mg(grid_level-1) = mg_loc_ind(1,myid) |
---|
1628 | nxr_mg(grid_level-1) = mg_loc_ind(2,myid) |
---|
1629 | nys_mg(grid_level-1) = mg_loc_ind(3,myid) |
---|
1630 | nyn_mg(grid_level-1) = mg_loc_ind(4,myid) |
---|
1631 | nzt_mg(grid_level-1) = mg_loc_ind(5,myid) |
---|
1632 | |
---|
1633 | ! |
---|
1634 | !-- Set switch for routine exchange_horiz, that ghostpoint exchange |
---|
1635 | !-- has to be carried again out from now on |
---|
1636 | mg_switch_to_pe0 = .FALSE. |
---|
1637 | |
---|
1638 | ! |
---|
1639 | !-- For non-cyclic lateral boundary conditions and in case of nesting, |
---|
1640 | !-- restore the in-/outflow conditions. |
---|
1641 | inflow_l = .FALSE.; inflow_r = .FALSE. |
---|
1642 | inflow_n = .FALSE.; inflow_s = .FALSE. |
---|
1643 | outflow_l = .FALSE.; outflow_r = .FALSE. |
---|
1644 | outflow_n = .FALSE.; outflow_s = .FALSE. |
---|
1645 | ! |
---|
1646 | !-- In case of nesting or forcing, restore lateral boundary conditions |
---|
1647 | IF ( nest_domain ) THEN |
---|
1648 | nest_bound_l = .FALSE. |
---|
1649 | nest_bound_r = .FALSE. |
---|
1650 | nest_bound_s = .FALSE. |
---|
1651 | nest_bound_n = .FALSE. |
---|
1652 | ENDIF |
---|
1653 | IF ( forcing ) THEN |
---|
1654 | force_bound_l = .FALSE. |
---|
1655 | force_bound_r = .FALSE. |
---|
1656 | force_bound_s = .FALSE. |
---|
1657 | force_bound_n = .FALSE. |
---|
1658 | ENDIF |
---|
1659 | |
---|
1660 | IF ( pleft == MPI_PROC_NULL ) THEN |
---|
1661 | IF ( bc_lr_dirrad ) THEN |
---|
1662 | inflow_l = .TRUE. |
---|
1663 | ELSEIF ( bc_lr_raddir ) THEN |
---|
1664 | outflow_l = .TRUE. |
---|
1665 | ELSEIF ( nest_domain ) THEN |
---|
1666 | nest_bound_l = .TRUE. |
---|
1667 | ELSEIF ( forcing ) THEN |
---|
1668 | force_bound_l = .TRUE. |
---|
1669 | ENDIF |
---|
1670 | ENDIF |
---|
1671 | |
---|
1672 | IF ( pright == MPI_PROC_NULL ) THEN |
---|
1673 | IF ( bc_lr_dirrad ) THEN |
---|
1674 | outflow_r = .TRUE. |
---|
1675 | ELSEIF ( bc_lr_raddir ) THEN |
---|
1676 | inflow_r = .TRUE. |
---|
1677 | ELSEIF ( nest_domain ) THEN |
---|
1678 | nest_bound_r = .TRUE. |
---|
1679 | ELSEIF ( forcing ) THEN |
---|
1680 | force_bound_r = .TRUE. |
---|
1681 | ENDIF |
---|
1682 | ENDIF |
---|
1683 | |
---|
1684 | IF ( psouth == MPI_PROC_NULL ) THEN |
---|
1685 | IF ( bc_ns_dirrad ) THEN |
---|
1686 | outflow_s = .TRUE. |
---|
1687 | ELSEIF ( bc_ns_raddir ) THEN |
---|
1688 | inflow_s = .TRUE. |
---|
1689 | ELSEIF ( nest_domain ) THEN |
---|
1690 | nest_bound_s = .TRUE. |
---|
1691 | ELSEIF ( forcing ) THEN |
---|
1692 | force_bound_s = .TRUE. |
---|
1693 | ENDIF |
---|
1694 | ENDIF |
---|
1695 | |
---|
1696 | IF ( pnorth == MPI_PROC_NULL ) THEN |
---|
1697 | IF ( bc_ns_dirrad ) THEN |
---|
1698 | inflow_n = .TRUE. |
---|
1699 | ELSEIF ( bc_ns_raddir ) THEN |
---|
1700 | outflow_n = .TRUE. |
---|
1701 | ELSEIF ( nest_domain ) THEN |
---|
1702 | nest_bound_n = .TRUE. |
---|
1703 | ELSEIF ( forcing ) THEN |
---|
1704 | force_bound_n = .TRUE. |
---|
1705 | ENDIF |
---|
1706 | ENDIF |
---|
1707 | |
---|
1708 | CALL prolong( p2_sub, p3 ) |
---|
1709 | |
---|
1710 | ! |
---|
1711 | !-- Restore the correct indices of the previous level |
---|
1712 | nxl_mg(grid_level-1) = nxl_mg_save |
---|
1713 | nxr_mg(grid_level-1) = nxr_mg_save |
---|
1714 | nys_mg(grid_level-1) = nys_mg_save |
---|
1715 | nyn_mg(grid_level-1) = nyn_mg_save |
---|
1716 | nzt_mg(grid_level-1) = nzt_mg_save |
---|
1717 | |
---|
1718 | DEALLOCATE( p2_sub ) |
---|
1719 | #endif |
---|
1720 | |
---|
1721 | ELSE |
---|
1722 | |
---|
1723 | CALL prolong( p2, p3 ) |
---|
1724 | |
---|
1725 | ENDIF |
---|
1726 | |
---|
1727 | ! |
---|
1728 | !-- Computation of the new pressure correction. Therefore, |
---|
1729 | !-- values from prior grids are added up automatically stage by stage. |
---|
1730 | DO i = nxl_mg(grid_level)-1, nxr_mg(grid_level)+1 |
---|
1731 | DO j = nys_mg(grid_level)-1, nyn_mg(grid_level)+1 |
---|
1732 | DO k = nzb, nzt_mg(grid_level)+1 |
---|
1733 | p_mg(k,j,i) = p_mg(k,j,i) + p3(k,j,i) |
---|
1734 | ENDDO |
---|
1735 | ENDDO |
---|
1736 | ENDDO |
---|
1737 | |
---|
1738 | ! |
---|
1739 | !-- Relaxation of the new solution |
---|
1740 | CALL redblack( f_mg, p_mg ) |
---|
1741 | |
---|
1742 | ENDIF |
---|
1743 | |
---|
1744 | |
---|
1745 | ! |
---|
1746 | !-- The following few lines serve the steering of the multigrid scheme |
---|
1747 | IF ( grid_level == maximum_grid_level ) THEN |
---|
1748 | |
---|
1749 | GOTO 20 |
---|
1750 | |
---|
1751 | ELSEIF ( grid_level /= maximum_grid_level .AND. grid_level /= 1 .AND. & |
---|
1752 | grid_level_count(grid_level) /= gamma_mg ) THEN |
---|
1753 | |
---|
1754 | GOTO 10 |
---|
1755 | |
---|
1756 | ENDIF |
---|
1757 | |
---|
1758 | ! |
---|
1759 | !-- Reset counter for the next call of poismg |
---|
1760 | grid_level_count(grid_level) = 0 |
---|
1761 | |
---|
1762 | ! |
---|
1763 | !-- Continue with the next finer level. nxl..nzt have to be |
---|
1764 | !-- set to the finer grid values, because these variables are needed for the |
---|
1765 | !-- exchange of ghost points in routine exchange_horiz |
---|
1766 | grid_level = grid_level + 1 |
---|
1767 | ind_even_odd = even_odd_level(grid_level) |
---|
1768 | |
---|
1769 | nxl = nxl_mg(grid_level) |
---|
1770 | nxr = nxr_mg(grid_level) |
---|
1771 | nys = nys_mg(grid_level) |
---|
1772 | nyn = nyn_mg(grid_level) |
---|
1773 | nzt = nzt_mg(grid_level) |
---|
1774 | |
---|
1775 | 20 CONTINUE |
---|
1776 | |
---|
1777 | END SUBROUTINE next_mg_level |
---|
1778 | |
---|
1779 | |
---|
1780 | !------------------------------------------------------------------------------! |
---|
1781 | ! Description: |
---|
1782 | ! ------------ |
---|
1783 | !> Initial settings for sorting k-dimension from sequential order (alternate |
---|
1784 | !> even/odd) into blocks of even and odd or vice versa |
---|
1785 | !------------------------------------------------------------------------------! |
---|
1786 | SUBROUTINE init_even_odd_blocks |
---|
1787 | |
---|
1788 | |
---|
1789 | USE arrays_3d, & |
---|
1790 | ONLY: f1_mg, f2_mg, f3_mg |
---|
1791 | |
---|
1792 | USE control_parameters, & |
---|
1793 | ONLY: grid_level, maximum_grid_level |
---|
1794 | |
---|
1795 | USE indices, & |
---|
1796 | ONLY: nzb, nzt, nzt_mg |
---|
1797 | |
---|
1798 | USE indices, & |
---|
1799 | ONLY: nxl_mg, nxr_mg, nys_mg, nyn_mg, nzb, nzt_mg |
---|
1800 | |
---|
1801 | IMPLICIT NONE |
---|
1802 | ! |
---|
1803 | !-- Local variables |
---|
1804 | INTEGER(iwp) :: i !< |
---|
1805 | INTEGER(iwp) :: l !< |
---|
1806 | |
---|
1807 | LOGICAL, SAVE :: lfirst = .TRUE. |
---|
1808 | |
---|
1809 | |
---|
1810 | IF ( .NOT. lfirst ) RETURN |
---|
1811 | |
---|
1812 | ALLOCATE( even_odd_level(maximum_grid_level) ) |
---|
1813 | |
---|
1814 | ALLOCATE( f1_mg_b(nzb:nzt+1,maximum_grid_level), & |
---|
1815 | f2_mg_b(nzb:nzt+1,maximum_grid_level), & |
---|
1816 | f3_mg_b(nzb:nzt+1,maximum_grid_level) ) |
---|
1817 | |
---|
1818 | ! |
---|
1819 | !-- Set border index between the even and odd block |
---|
1820 | DO i = maximum_grid_level, 1, -1 |
---|
1821 | even_odd_level(i) = nzt_mg(i) / 2 |
---|
1822 | ENDDO |
---|
1823 | |
---|
1824 | ! |
---|
1825 | !-- Sort grid coefficients used in red/black scheme and for calculating the |
---|
1826 | !-- residual to block (even/odd) structure |
---|
1827 | DO l = maximum_grid_level, 1 , -1 |
---|
1828 | CALL sort_k_to_even_odd_blocks( f1_mg(nzb+1:nzt_mg(grid_level),l), & |
---|
1829 | f1_mg_b(nzb:nzt_mg(grid_level)+1,l), & |
---|
1830 | l ) |
---|
1831 | CALL sort_k_to_even_odd_blocks( f2_mg(nzb+1:nzt_mg(grid_level),l), & |
---|
1832 | f2_mg_b(nzb:nzt_mg(grid_level)+1,l), & |
---|
1833 | l ) |
---|
1834 | CALL sort_k_to_even_odd_blocks( f3_mg(nzb+1:nzt_mg(grid_level),l), & |
---|
1835 | f3_mg_b(nzb:nzt_mg(grid_level)+1,l), & |
---|
1836 | l ) |
---|
1837 | ENDDO |
---|
1838 | |
---|
1839 | lfirst = .FALSE. |
---|
1840 | |
---|
1841 | END SUBROUTINE init_even_odd_blocks |
---|
1842 | |
---|
1843 | |
---|
1844 | !------------------------------------------------------------------------------! |
---|
1845 | ! Description: |
---|
1846 | ! ------------ |
---|
1847 | !> Special exchange_horiz subroutine for use in redblack. Transfers only |
---|
1848 | !> "red" or "black" data points. |
---|
1849 | !------------------------------------------------------------------------------! |
---|
1850 | SUBROUTINE special_exchange_horiz ( p_mg, color ) |
---|
1851 | |
---|
1852 | |
---|
1853 | USE control_parameters, & |
---|
1854 | ONLY: bc_lr_cyc, bc_ns_cyc, grid_level, ibc_p_b, ibc_p_t, & |
---|
1855 | maximum_grid_level, & |
---|
1856 | mg_switch_to_pe0_level, synchronous_exchange |
---|
1857 | |
---|
1858 | USE indices, & |
---|
1859 | ONLY: mg_loc_ind, nxl, nxl_mg, nxr, nxr_mg, nys, nys_mg, nyn, & |
---|
1860 | nyn_mg, nzb, nzt, nzt_mg |
---|
1861 | |
---|
1862 | IMPLICIT NONE |
---|
1863 | |
---|
1864 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
1865 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
1866 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: & |
---|
1867 | p_mg !< treated array |
---|
1868 | |
---|
1869 | INTEGER(iwp), intent(IN) :: color !< flag for grid point type (red or black) |
---|
1870 | ! |
---|
1871 | !-- Local variables |
---|
1872 | INTEGER(iwp) :: i !< index variable along x |
---|
1873 | INTEGER(iwp) :: i1 !< index variable along x on coarse level |
---|
1874 | INTEGER(iwp) :: i2 !< index variable along x on coarse level |
---|
1875 | |
---|
1876 | INTEGER(iwp) :: j !< index variable along y |
---|
1877 | INTEGER(iwp) :: j1 !< index variable along y on coarse level |
---|
1878 | INTEGER(iwp) :: j2 !< index variable along y on coarse level |
---|
1879 | INTEGER(iwp) :: k !< index variable along z |
---|
1880 | INTEGER(iwp) :: l !< short for grid level |
---|
1881 | INTEGER(iwp) :: jys !< index for lower local PE boundary along y |
---|
1882 | INTEGER(iwp) :: jyn !< index for upper local PE boundary along y |
---|
1883 | INTEGER(iwp) :: ixl !< index for lower local PE boundary along x |
---|
1884 | INTEGER(iwp) :: ixr !< index for upper local PE boundary along x |
---|
1885 | |
---|
1886 | LOGICAL :: synchronous_exchange_save !< dummy to reset synchronous_exchange to prescribed value |
---|
1887 | |
---|
1888 | REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: temp !< temporary array on next coarser grid level |
---|
1889 | |
---|
1890 | #if defined ( __parallel ) |
---|
1891 | synchronous_exchange_save = synchronous_exchange |
---|
1892 | synchronous_exchange = .FALSE. |
---|
1893 | |
---|
1894 | l = grid_level |
---|
1895 | |
---|
1896 | ind_even_odd = even_odd_level(grid_level) |
---|
1897 | |
---|
1898 | ! |
---|
1899 | !-- Restricted transfer only on finer levels with enough data. |
---|
1900 | !-- Restricted transfer is not possible for levels smaller or equal to |
---|
1901 | !-- 'switch to PE0 levels', since array bounds does not fit. Moreover, |
---|
1902 | !-- it is not possible for the coarsest grid level, since the dimensions |
---|
1903 | !-- of temp are not defined. For such cases, normal exchange_horiz is called. |
---|
1904 | IF ( l > 1 .AND. l > mg_switch_to_pe0_level + 1 .AND. & |
---|
1905 | ( ngp_xz(grid_level) >= 900 .OR. ngp_yz(grid_level) >= 900 ) ) THEN |
---|
1906 | |
---|
1907 | jys = nys_mg(grid_level-1) |
---|
1908 | jyn = nyn_mg(grid_level-1) |
---|
1909 | ixl = nxl_mg(grid_level-1) |
---|
1910 | ixr = nxr_mg(grid_level-1) |
---|
1911 | ALLOCATE( temp(nzb:nzt_mg(l-1)+1,jys-1:jyn+1,ixl-1:ixr+1) ) |
---|
1912 | ! |
---|
1913 | !-- Handling the even k Values |
---|
1914 | !-- Collecting data for the north - south exchange |
---|
1915 | !-- Since only every second value has to be transfered, data are stored |
---|
1916 | !-- on the next coarser grid level, because the arrays on that level |
---|
1917 | !-- have just the required size |
---|
1918 | i1 = nxl_mg(grid_level-1) |
---|
1919 | i2 = nxl_mg(grid_level-1) |
---|
1920 | |
---|
1921 | DO i = nxl_mg(l), nxr_mg(l), 2 |
---|
1922 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
---|
1923 | |
---|
1924 | IF ( j == nys_mg(l) ) THEN |
---|
1925 | !DIR$ IVDEP |
---|
1926 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
1927 | temp(k-ind_even_odd,jys,i1) = p_mg(k,j,i) |
---|
1928 | ENDDO |
---|
1929 | i1 = i1 + 1 |
---|
1930 | |
---|
1931 | ENDIF |
---|
1932 | |
---|
1933 | IF ( j == nyn_mg(l) ) THEN |
---|
1934 | !DIR$ IVDEP |
---|
1935 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
1936 | temp(k-ind_even_odd,jyn,i2) = p_mg(k,j,i) |
---|
1937 | ENDDO |
---|
1938 | i2 = i2 + 1 |
---|
1939 | |
---|
1940 | ENDIF |
---|
1941 | |
---|
1942 | ENDDO |
---|
1943 | ENDDO |
---|
1944 | |
---|
1945 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
---|
1946 | DO j = nys_mg(l) + (color-1), nyn_mg(l), 2 |
---|
1947 | |
---|
1948 | IF ( j == nys_mg(l) ) THEN |
---|
1949 | !DIR$ IVDEP |
---|
1950 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
1951 | temp(k-ind_even_odd,jys,i1) = p_mg(k,j,i) |
---|
1952 | ENDDO |
---|
1953 | i1 = i1 + 1 |
---|
1954 | |
---|
1955 | ENDIF |
---|
1956 | |
---|
1957 | IF ( j == nyn_mg(l) ) THEN |
---|
1958 | !DIR$ IVDEP |
---|
1959 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
1960 | temp(k-ind_even_odd,jyn,i2) = p_mg(k,j,i) |
---|
1961 | ENDDO |
---|
1962 | i2 = i2 + 1 |
---|
1963 | |
---|
1964 | ENDIF |
---|
1965 | |
---|
1966 | ENDDO |
---|
1967 | ENDDO |
---|
1968 | |
---|
1969 | grid_level = grid_level-1 |
---|
1970 | |
---|
1971 | nxl = nxl_mg(grid_level) |
---|
1972 | nys = nys_mg(grid_level) |
---|
1973 | nxr = nxr_mg(grid_level) |
---|
1974 | nyn = nyn_mg(grid_level) |
---|
1975 | nzt = nzt_mg(grid_level) |
---|
1976 | |
---|
1977 | send_receive = 'ns' |
---|
1978 | CALL exchange_horiz( temp, 1 ) |
---|
1979 | |
---|
1980 | grid_level = grid_level+1 |
---|
1981 | |
---|
1982 | i1 = nxl_mg(grid_level-1) |
---|
1983 | i2 = nxl_mg(grid_level-1) |
---|
1984 | |
---|
1985 | DO i = nxl_mg(l), nxr_mg(l), 2 |
---|
1986 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
---|
1987 | |
---|
1988 | IF ( j == nys_mg(l) ) THEN |
---|
1989 | !DIR$ IVDEP |
---|
1990 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
1991 | p_mg(k,nyn_mg(l)+1,i) = temp(k-ind_even_odd,jyn+1,i1) |
---|
1992 | ENDDO |
---|
1993 | i1 = i1 + 1 |
---|
1994 | |
---|
1995 | ENDIF |
---|
1996 | |
---|
1997 | IF ( j == nyn_mg(l) ) THEN |
---|
1998 | !DIR$ IVDEP |
---|
1999 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
2000 | p_mg(k,nys_mg(l)-1,i) = temp(k-ind_even_odd,jys-1,i2) |
---|
2001 | ENDDO |
---|
2002 | i2 = i2 + 1 |
---|
2003 | |
---|
2004 | ENDIF |
---|
2005 | |
---|
2006 | ENDDO |
---|
2007 | ENDDO |
---|
2008 | |
---|
2009 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
---|
2010 | DO j = nys_mg(l) + (color-1), nyn_mg(l), 2 |
---|
2011 | |
---|
2012 | IF ( j == nys_mg(l) ) THEN |
---|
2013 | !DIR$ IVDEP |
---|
2014 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
2015 | p_mg(k,nyn_mg(l)+1,i) = temp(k-ind_even_odd,jyn+1,i1) |
---|
2016 | ENDDO |
---|
2017 | i1 = i1 + 1 |
---|
2018 | |
---|
2019 | ENDIF |
---|
2020 | |
---|
2021 | IF ( j == nyn_mg(l) ) THEN |
---|
2022 | !DIR$ IVDEP |
---|
2023 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
2024 | p_mg(k,nys_mg(l)-1,i) = temp(k-ind_even_odd,jys-1,i2) |
---|
2025 | ENDDO |
---|
2026 | i2 = i2 + 1 |
---|
2027 | |
---|
2028 | ENDIF |
---|
2029 | |
---|
2030 | ENDDO |
---|
2031 | ENDDO |
---|
2032 | |
---|
2033 | ! |
---|
2034 | !-- Collecting data for the left - right exchange |
---|
2035 | !-- Since only every second value has to be transfered, data are stored |
---|
2036 | !-- on the next coarser grid level, because the arrays on that level |
---|
2037 | !-- have just the required size |
---|
2038 | j1 = nys_mg(grid_level-1) |
---|
2039 | j2 = nys_mg(grid_level-1) |
---|
2040 | |
---|
2041 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
---|
2042 | DO i = nxl_mg(l), nxr_mg(l), 2 |
---|
2043 | |
---|
2044 | IF ( i == nxl_mg(l) ) THEN |
---|
2045 | !DIR$ IVDEP |
---|
2046 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
2047 | temp(k-ind_even_odd,j1,ixl) = p_mg(k,j,i) |
---|
2048 | ENDDO |
---|
2049 | j1 = j1 + 1 |
---|
2050 | |
---|
2051 | ENDIF |
---|
2052 | |
---|
2053 | IF ( i == nxr_mg(l) ) THEN |
---|
2054 | !DIR$ IVDEP |
---|
2055 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
2056 | temp(k-ind_even_odd,j2,ixr) = p_mg(k,j,i) |
---|
2057 | ENDDO |
---|
2058 | j2 = j2 + 1 |
---|
2059 | |
---|
2060 | ENDIF |
---|
2061 | |
---|
2062 | ENDDO |
---|
2063 | ENDDO |
---|
2064 | |
---|
2065 | DO j = nys_mg(l) + (color-1), nyn_mg(l), 2 |
---|
2066 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
---|
2067 | |
---|
2068 | IF ( i == nxl_mg(l) ) THEN |
---|
2069 | !DIR$ IVDEP |
---|
2070 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
2071 | temp(k-ind_even_odd,j1,ixl) = p_mg(k,j,i) |
---|
2072 | ENDDO |
---|
2073 | j1 = j1 + 1 |
---|
2074 | |
---|
2075 | ENDIF |
---|
2076 | |
---|
2077 | IF ( i == nxr_mg(l) ) THEN |
---|
2078 | !DIR$ IVDEP |
---|
2079 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
2080 | temp(k-ind_even_odd,j2,ixr) = p_mg(k,j,i) |
---|
2081 | ENDDO |
---|
2082 | j2 = j2 + 1 |
---|
2083 | |
---|
2084 | ENDIF |
---|
2085 | |
---|
2086 | ENDDO |
---|
2087 | ENDDO |
---|
2088 | |
---|
2089 | grid_level = grid_level-1 |
---|
2090 | send_receive = 'lr' |
---|
2091 | |
---|
2092 | CALL exchange_horiz( temp, 1 ) |
---|
2093 | |
---|
2094 | grid_level = grid_level+1 |
---|
2095 | |
---|
2096 | j1 = nys_mg(grid_level-1) |
---|
2097 | j2 = nys_mg(grid_level-1) |
---|
2098 | |
---|
2099 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
---|
2100 | DO i = nxl_mg(l), nxr_mg(l), 2 |
---|
2101 | |
---|
2102 | IF ( i == nxl_mg(l) ) THEN |
---|
2103 | !DIR$ IVDEP |
---|
2104 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
2105 | p_mg(k,j,nxr_mg(l)+1) = temp(k-ind_even_odd,j1,ixr+1) |
---|
2106 | ENDDO |
---|
2107 | j1 = j1 + 1 |
---|
2108 | |
---|
2109 | ENDIF |
---|
2110 | |
---|
2111 | IF ( i == nxr_mg(l) ) THEN |
---|
2112 | !DIR$ IVDEP |
---|
2113 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
2114 | p_mg(k,j,nxl_mg(l)-1) = temp(k-ind_even_odd,j2,ixl-1) |
---|
2115 | ENDDO |
---|
2116 | j2 = j2 + 1 |
---|
2117 | |
---|
2118 | ENDIF |
---|
2119 | |
---|
2120 | ENDDO |
---|
2121 | ENDDO |
---|
2122 | |
---|
2123 | DO j = nys_mg(l) + (color-1), nyn_mg(l), 2 |
---|
2124 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
---|
2125 | |
---|
2126 | IF ( i == nxl_mg(l) ) THEN |
---|
2127 | !DIR$ IVDEP |
---|
2128 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
2129 | p_mg(k,j,nxr_mg(l)+1) = temp(k-ind_even_odd,j1,ixr+1) |
---|
2130 | ENDDO |
---|
2131 | j1 = j1 + 1 |
---|
2132 | |
---|
2133 | ENDIF |
---|
2134 | |
---|
2135 | IF ( i == nxr_mg(l) ) THEN |
---|
2136 | !DIR$ IVDEP |
---|
2137 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
2138 | p_mg(k,j,nxl_mg(l)-1) = temp(k-ind_even_odd,j2,ixl-1) |
---|
2139 | ENDDO |
---|
2140 | j2 = j2 + 1 |
---|
2141 | |
---|
2142 | ENDIF |
---|
2143 | |
---|
2144 | ENDDO |
---|
2145 | ENDDO |
---|
2146 | |
---|
2147 | ! |
---|
2148 | !-- Now handling the even k values |
---|
2149 | !-- Collecting data for the north - south exchange |
---|
2150 | !-- Since only every second value has to be transfered, data are stored |
---|
2151 | !-- on the next coarser grid level, because the arrays on that level |
---|
2152 | !-- have just the required size |
---|
2153 | i1 = nxl_mg(grid_level-1) |
---|
2154 | i2 = nxl_mg(grid_level-1) |
---|
2155 | |
---|
2156 | DO i = nxl_mg(l), nxr_mg(l), 2 |
---|
2157 | DO j = nys_mg(l) + (color-1), 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 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
---|
2181 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
---|
2182 | |
---|
2183 | IF ( j == nys_mg(l) ) THEN |
---|
2184 | !DIR$ IVDEP |
---|
2185 | DO k = nzb+1, ind_even_odd |
---|
2186 | temp(k,jys,i1) = p_mg(k,j,i) |
---|
2187 | ENDDO |
---|
2188 | i1 = i1 + 1 |
---|
2189 | |
---|
2190 | ENDIF |
---|
2191 | |
---|
2192 | IF ( j == nyn_mg(l) ) THEN |
---|
2193 | !DIR$ IVDEP |
---|
2194 | DO k = nzb+1, ind_even_odd |
---|
2195 | temp(k,jyn,i2) = p_mg(k,j,i) |
---|
2196 | ENDDO |
---|
2197 | i2 = i2 + 1 |
---|
2198 | |
---|
2199 | ENDIF |
---|
2200 | |
---|
2201 | ENDDO |
---|
2202 | ENDDO |
---|
2203 | |
---|
2204 | grid_level = grid_level-1 |
---|
2205 | |
---|
2206 | send_receive = 'ns' |
---|
2207 | CALL exchange_horiz( temp, 1 ) |
---|
2208 | |
---|
2209 | grid_level = grid_level+1 |
---|
2210 | |
---|
2211 | i1 = nxl_mg(grid_level-1) |
---|
2212 | i2 = nxl_mg(grid_level-1) |
---|
2213 | |
---|
2214 | DO i = nxl_mg(l), nxr_mg(l), 2 |
---|
2215 | DO j = nys_mg(l) + (color-1), 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 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
---|
2239 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
---|
2240 | |
---|
2241 | IF ( j == nys_mg(l) ) THEN |
---|
2242 | !DIR$ IVDEP |
---|
2243 | DO k = nzb+1, ind_even_odd |
---|
2244 | p_mg(k,nyn_mg(l)+1,i) = temp(k,jyn+1,i1) |
---|
2245 | ENDDO |
---|
2246 | i1 = i1 + 1 |
---|
2247 | |
---|
2248 | ENDIF |
---|
2249 | |
---|
2250 | IF ( j == nyn_mg(l) ) THEN |
---|
2251 | !DIR$ IVDEP |
---|
2252 | DO k = nzb+1, ind_even_odd |
---|
2253 | p_mg(k,nys_mg(l)-1,i) = temp(k,jys-1,i2) |
---|
2254 | ENDDO |
---|
2255 | i2 = i2 + 1 |
---|
2256 | |
---|
2257 | ENDIF |
---|
2258 | |
---|
2259 | ENDDO |
---|
2260 | ENDDO |
---|
2261 | |
---|
2262 | j1 = nys_mg(grid_level-1) |
---|
2263 | j2 = nys_mg(grid_level-1) |
---|
2264 | |
---|
2265 | DO i = nxl_mg(l), nxr_mg(l), 2 |
---|
2266 | DO j = nys_mg(l) + (color-1), 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 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
---|
2290 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
---|
2291 | |
---|
2292 | IF ( i == nxl_mg(l) ) THEN |
---|
2293 | !DIR$ IVDEP |
---|
2294 | DO k = nzb+1, ind_even_odd |
---|
2295 | temp(k,j1,ixl) = p_mg(k,j,i) |
---|
2296 | ENDDO |
---|
2297 | j1 = j1 + 1 |
---|
2298 | |
---|
2299 | ENDIF |
---|
2300 | |
---|
2301 | IF ( i == nxr_mg(l) ) THEN |
---|
2302 | !DIR$ IVDEP |
---|
2303 | DO k = nzb+1, ind_even_odd |
---|
2304 | temp(k,j2,ixr) = p_mg(k,j,i) |
---|
2305 | ENDDO |
---|
2306 | j2 = j2 + 1 |
---|
2307 | |
---|
2308 | ENDIF |
---|
2309 | |
---|
2310 | ENDDO |
---|
2311 | ENDDO |
---|
2312 | |
---|
2313 | grid_level = grid_level-1 |
---|
2314 | |
---|
2315 | send_receive = 'lr' |
---|
2316 | CALL exchange_horiz( temp, 1 ) |
---|
2317 | |
---|
2318 | grid_level = grid_level+1 |
---|
2319 | |
---|
2320 | nxl = nxl_mg(grid_level) |
---|
2321 | nys = nys_mg(grid_level) |
---|
2322 | nxr = nxr_mg(grid_level) |
---|
2323 | nyn = nyn_mg(grid_level) |
---|
2324 | nzt = nzt_mg(grid_level) |
---|
2325 | |
---|
2326 | j1 = nys_mg(grid_level-1) |
---|
2327 | j2 = nys_mg(grid_level-1) |
---|
2328 | |
---|
2329 | DO i = nxl_mg(l), nxr_mg(l), 2 |
---|
2330 | DO j = nys_mg(l) + (color-1), 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 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
---|
2354 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
---|
2355 | |
---|
2356 | IF ( i == nxl_mg(l) ) THEN |
---|
2357 | !DIR$ IVDEP |
---|
2358 | DO k = nzb+1, ind_even_odd |
---|
2359 | p_mg(k,j,nxr_mg(l)+1) = temp(k,j1,ixr+1) |
---|
2360 | ENDDO |
---|
2361 | j1 = j1 + 1 |
---|
2362 | |
---|
2363 | ENDIF |
---|
2364 | |
---|
2365 | IF ( i == nxr_mg(l) ) THEN |
---|
2366 | !DIR$ IVDEP |
---|
2367 | DO k = nzb+1, ind_even_odd |
---|
2368 | p_mg(k,j,nxl_mg(l)-1) = temp(k,j2,ixl-1) |
---|
2369 | ENDDO |
---|
2370 | j2 = j2 + 1 |
---|
2371 | |
---|
2372 | ENDIF |
---|
2373 | |
---|
2374 | ENDDO |
---|
2375 | ENDDO |
---|
2376 | |
---|
2377 | DEALLOCATE( temp ) |
---|
2378 | |
---|
2379 | ELSE |
---|
2380 | |
---|
2381 | ! |
---|
2382 | !-- Standard horizontal ghost boundary exchange for small coarse grid |
---|
2383 | !-- levels, where the transfer time is latency bound |
---|
2384 | CALL exchange_horiz( p_mg, 1 ) |
---|
2385 | |
---|
2386 | ENDIF |
---|
2387 | |
---|
2388 | ! |
---|
2389 | !-- Reset values to default PALM setup |
---|
2390 | synchronous_exchange = synchronous_exchange_save |
---|
2391 | send_receive = 'al' |
---|
2392 | #else |
---|
2393 | |
---|
2394 | ! |
---|
2395 | !-- Standard horizontal ghost boundary exchange for small coarse grid |
---|
2396 | !-- levels, where the transfer time is latency bound |
---|
2397 | CALL exchange_horiz( p_mg, 1 ) |
---|
2398 | #endif |
---|
2399 | |
---|
2400 | END SUBROUTINE special_exchange_horiz |
---|
2401 | |
---|
2402 | END MODULE poismg_mod |
---|