1 | !> @file poismg_noopt_mod.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 1997-2019 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_noopt_mod.f90 3655 2019-01-07 16:51:22Z gronemeier $ |
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27 | ! unused variables removed |
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28 | ! |
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29 | ! 3183 2018-07-27 14:25:55Z suehring |
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30 | ! Rename variables in mesoscale-offline nesting mode |
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31 | ! |
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32 | ! 3182 2018-07-27 13:36:03Z suehring |
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33 | ! Set lateral boundary conditions for divergence |
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34 | ! |
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35 | ! 2793 2018-02-07 10:54:33Z suehring |
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36 | ! Corrected "Former revisions" section |
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37 | ! |
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38 | ! 2696 2017-12-14 17:12:51Z kanani |
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39 | ! - Change in file header (GPL part) |
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40 | ! - Rename file into poismg_noopt_mod |
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41 | ! - Modularize poismg_noopt - initialization of masking flags moved from |
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42 | ! init_grid |
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43 | ! - Masking of downward-facing walls walls |
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44 | ! - Large-scale forcing implemented (MS) |
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45 | ! |
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46 | ! 2591 2017-10-30 08:07:25Z maronga |
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47 | ! |
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48 | ! 2586 2017-10-27 13:03:50Z kanani |
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49 | ! |
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50 | ! 2232 2017-05-30 17:47:52Z suehring |
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51 | ! Bugfixes OpenMP |
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52 | ! |
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53 | ! 2037 2016-10-26 11:15:40Z knoop |
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54 | ! Anelastic approximation implemented |
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55 | ! |
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56 | ! 2021 2016-10-07 14:08:57Z suehring |
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57 | ! Bugfix: restore nest_bound_(l/r/s/n) in case of mg_switch_to_pe0 |
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58 | ! |
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59 | ! 2000 2016-08-20 18:09:15Z knoop |
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60 | ! Forced header and separation lines into 80 columns |
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61 | ! |
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62 | ! 1934 2016-06-13 09:46:57Z hellstea |
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63 | ! Rename subroutines and cpu-measure log points to indicate _noopt version |
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64 | ! |
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65 | ! 1762 2016-02-25 12:31:13Z hellstea |
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66 | ! Introduction of nested domain feature |
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67 | ! |
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68 | ! 1682 2015-10-07 23:56:08Z knoop |
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69 | ! Code annotations made doxygen readable |
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70 | ! |
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71 | ! 1353 2014-04-08 15:21:23Z heinze |
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72 | ! REAL constants provided with KIND-attribute |
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73 | ! |
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74 | ! 1322 2014-03-20 16:38:49Z raasch |
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75 | ! REAL constants defined as wp-kind |
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76 | ! |
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77 | ! 1320 2014-03-20 08:40:49Z raasch |
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78 | ! ONLY-attribute added to USE-statements, |
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79 | ! kind-parameters added to all INTEGER and REAL declaration statements, |
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80 | ! kinds are defined in new module kinds, |
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81 | ! old module precision_kind is removed, |
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82 | ! revision history before 2012 removed, |
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83 | ! comment fields (!:) to be used for variable explanations added to |
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84 | ! all variable declaration statements |
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85 | ! |
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86 | ! 1318 2014-03-17 13:35:16Z raasch |
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87 | ! module interfaces removed |
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88 | ! |
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89 | ! 1159 2013-05-21 11:58:22Z fricke |
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90 | ! bc_lr/ns_dirneu/neudir removed |
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91 | ! |
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92 | ! 1092 2013-02-02 11:24:22Z raasch |
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93 | ! unused variables removed |
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94 | ! |
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95 | ! 1056 2012-11-16 15:28:04Z raasch |
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96 | ! Bugfix: all ghost points have to be used for allocating p3 |
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97 | ! arrays p2, f2, and f2_l changed from allocatable to automatic |
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98 | ! |
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99 | ! 1036 2012-10-22 13:43:42Z raasch |
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100 | ! code put under GPL (PALM 3.9) |
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101 | ! |
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102 | ! 996 2012-09-07 10:41:47Z raasch |
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103 | ! little reformatting |
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104 | ! |
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105 | ! 978 2012-08-09 08:28:32Z fricke |
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106 | ! bc_lr/ns_dirneu/neudir added |
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107 | ! |
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108 | ! 880 2012-04-13 06:28:59Z raasch |
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109 | ! Bugfix: preprocessor statements for parallel execution added |
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110 | ! |
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111 | ! 778 2011-11-07 14:18:25Z fricke |
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112 | ! Allocation of p3 changes when multigrid is used and the collected field on PE0 |
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113 | ! has more grid points than the subdomain of an PE. |
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114 | ! |
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115 | ! 707 2011-03-29 11:39:40Z raasch |
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116 | ! p_loc is used instead of p in the main routine (poismg). |
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117 | ! On coarse grid levels, gathered data are identically processed on all PEs |
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118 | ! (before, on PE0 only), so that the subsequent scattering of data is not |
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119 | ! neccessary any more. |
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120 | ! bc_lr/ns replaced by bc_lr/ns_cyc/dirrad/raddir |
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121 | ! Bugfix: bottom (nzb) and top (nzt+1) boundary conditions set in routines |
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122 | ! resid and restrict. They were missed before which may have led to |
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123 | ! unpredictable results. |
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124 | ! |
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125 | ! 667 2010-12-23 12:06:00Z suehring/gryschka |
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126 | ! Calls of exchange_horiz are modified. |
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127 | ! |
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128 | ! 622 2010-12-10 08:08:13Z raasch |
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129 | ! optional barriers included in order to speed up collective operations |
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130 | ! |
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131 | ! 257 2009-03-11 15:17:42Z heinze |
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132 | ! Output of messages replaced by message handling routine. |
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133 | ! |
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134 | ! 181 2008-07-30 07:07:47Z raasch |
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135 | ! Bugfix: grid_level+1 has to be used in restrict for flags-array |
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136 | ! |
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137 | ! 114 2007-10-10 00:03:15Z raasch |
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138 | ! Boundary conditions at walls are implicitly set using flag arrays. Only |
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139 | ! Neumann BC is allowed. Upper walls are still not realized. |
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140 | ! Bottom and top BCs for array f_mg in restrict removed because boundary |
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141 | ! values are not needed (right hand side of SOR iteration). |
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142 | ! |
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143 | ! 75 2007-03-22 09:54:05Z raasch |
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144 | ! 2nd+3rd argument removed from exchange horiz |
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145 | ! |
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146 | ! RCS Log replace by Id keyword, revision history cleaned up |
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147 | ! |
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148 | ! Revision 1.6 2005/03/26 20:55:54 raasch |
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149 | ! Implementation of non-cyclic (Neumann) horizontal boundary conditions, |
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150 | ! routine prolong simplified (one call of exchange_horiz spared) |
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151 | ! |
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152 | ! Revision 1.1 2001/07/20 13:10:51 raasch |
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153 | ! Initial revision |
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154 | ! |
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155 | ! |
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156 | ! Description: |
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157 | ! ------------ |
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158 | !> Solves the Poisson equation for the perturbation pressure with a multigrid |
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159 | !> V- or W-Cycle scheme. |
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160 | !> |
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161 | !> This multigrid method was originally developed for PALM by Joerg Uhlenbrock, |
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162 | !> September 2000 - July 2001. |
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163 | !> |
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164 | !> @attention Loop unrolling and cache optimization in SOR-Red/Black method |
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165 | !> still does not give the expected speedup! |
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166 | !> |
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167 | !> @todo Further work required. |
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168 | !> @todo Formatting adjustments required (indention after modularization) |
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169 | !------------------------------------------------------------------------------! |
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170 | MODULE poismg_noopt_mod |
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171 | |
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172 | USE control_parameters, & |
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173 | ONLY: bc_dirichlet_l, bc_dirichlet_n, bc_dirichlet_r, & |
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174 | bc_dirichlet_s, bc_radiation_l, bc_radiation_n, bc_radiation_r, & |
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175 | bc_radiation_s, child_domain, grid_level, nesting_offline |
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176 | |
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177 | USE cpulog, & |
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178 | ONLY: cpu_log, log_point_s |
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179 | |
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180 | USE kinds |
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181 | |
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182 | USE pegrid |
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183 | |
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184 | PRIVATE |
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185 | |
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186 | INTERFACE poismg_noopt |
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187 | MODULE PROCEDURE poismg_noopt |
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188 | END INTERFACE poismg_noopt |
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189 | |
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190 | INTERFACE poismg_noopt_init |
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191 | MODULE PROCEDURE poismg_noopt_init |
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192 | END INTERFACE poismg_noopt_init |
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193 | |
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194 | PUBLIC poismg_noopt, poismg_noopt_init |
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195 | |
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196 | CONTAINS |
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197 | |
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198 | SUBROUTINE poismg_noopt( r ) |
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199 | |
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200 | |
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201 | USE arrays_3d, & |
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202 | ONLY: d, p_loc |
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203 | |
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204 | USE control_parameters, & |
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205 | ONLY: bc_lr_cyc, bc_ns_cyc, gathered_size, grid_level_count, & |
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206 | ibc_p_t, maximum_grid_level, message_string, mgcycles, & |
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207 | mg_cycles, mg_switch_to_pe0_level, residual_limit, & |
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208 | subdomain_size |
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209 | |
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210 | USE control_parameters, & |
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211 | ONLY: bc_lr_cyc, bc_ns_cyc, gathered_size, grid_level, & |
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212 | grid_level_count, ibc_p_t, & |
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213 | maximum_grid_level, message_string, mgcycles, mg_cycles, & |
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214 | mg_switch_to_pe0_level, residual_limit, subdomain_size |
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215 | |
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216 | USE cpulog, & |
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217 | ONLY: cpu_log, log_point_s |
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218 | |
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219 | USE indices, & |
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220 | ONLY: nxl, nxlg, nxl_mg, nxr, nxrg, nxr_mg, nys, nysg, nys_mg, nyn,& |
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221 | nyng, nyn_mg, nzb, nzt, nzt_mg |
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222 | |
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223 | USE kinds |
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224 | |
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225 | USE pegrid |
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226 | |
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227 | IMPLICIT NONE |
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228 | |
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229 | REAL(wp) :: maxerror !< |
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230 | REAL(wp) :: maximum_mgcycles !< |
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231 | REAL(wp) :: residual_norm !< |
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232 | |
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233 | REAL(wp), DIMENSION(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) :: r !< |
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234 | |
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235 | REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: p3 !< |
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236 | |
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237 | |
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238 | CALL cpu_log( log_point_s(29), 'poismg_noopt', 'start' ) |
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239 | ! |
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240 | !-- Initialize arrays and variables used in this subroutine |
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241 | |
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242 | !-- If the number of grid points of the gathered grid, which is collected |
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243 | !-- on PE0, is larger than the number of grid points of an PE, than array |
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244 | !-- p3 will be enlarged. |
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245 | IF ( gathered_size > subdomain_size ) THEN |
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246 | ALLOCATE( p3(nzb:nzt_mg(mg_switch_to_pe0_level)+1,nys_mg( & |
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247 | mg_switch_to_pe0_level)-1:nyn_mg(mg_switch_to_pe0_level)+1,& |
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248 | nxl_mg(mg_switch_to_pe0_level)-1:nxr_mg( & |
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249 | mg_switch_to_pe0_level)+1) ) |
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250 | ELSE |
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251 | ALLOCATE ( p3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) ) |
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252 | ENDIF |
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253 | |
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254 | p3 = 0.0_wp |
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255 | |
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256 | ! |
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257 | !-- Ghost boundaries have to be added to divergence array. |
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258 | !-- Exchange routine needs to know the grid level! |
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259 | grid_level = maximum_grid_level |
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260 | CALL exchange_horiz( d, 1) |
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261 | ! |
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262 | !-- Set bottom and top boundary conditions |
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263 | d(nzb,:,:) = d(nzb+1,:,:) |
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264 | IF ( ibc_p_t == 1 ) d(nzt+1,:,: ) = d(nzt,:,:) |
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265 | ! |
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266 | !-- Set lateral boundary conditions in non-cyclic case |
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267 | IF ( .NOT. bc_lr_cyc ) THEN |
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268 | IF ( bc_dirichlet_l .OR. bc_radiation_l ) & |
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269 | d(:,:,nxl-1) = d(:,:,nxl) |
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270 | IF ( bc_dirichlet_r .OR. bc_radiation_r ) & |
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271 | d(:,:,nxr+1) = d(:,:,nxr) |
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272 | ENDIF |
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273 | IF ( .NOT. bc_ns_cyc ) THEN |
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274 | IF ( bc_dirichlet_n .OR. bc_radiation_n ) & |
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275 | d(:,nyn+1,:) = d(:,nyn,:) |
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276 | IF ( bc_dirichlet_s .OR. bc_radiation_s ) & |
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277 | d(:,nys-1,:) = d(:,nys,:) |
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278 | ENDIF |
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279 | |
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280 | ! |
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281 | !-- Initiation of the multigrid scheme. Does n cycles until the |
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282 | !-- residual is smaller than the given limit. The accuracy of the solution |
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283 | !-- of the poisson equation will increase with the number of cycles. |
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284 | !-- If the number of cycles is preset by the user, this number will be |
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285 | !-- carried out regardless of the accuracy. |
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286 | grid_level_count = 0 |
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287 | mgcycles = 0 |
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288 | IF ( mg_cycles == -1 ) THEN |
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289 | maximum_mgcycles = 0 |
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290 | residual_norm = 1.0_wp |
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291 | ELSE |
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292 | maximum_mgcycles = mg_cycles |
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293 | residual_norm = 0.0_wp |
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294 | ENDIF |
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295 | |
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296 | DO WHILE ( residual_norm > residual_limit .OR. & |
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297 | mgcycles < maximum_mgcycles ) |
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298 | |
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299 | CALL next_mg_level_noopt( d, p_loc, p3, r) |
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300 | |
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301 | ! |
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302 | !-- Calculate the residual if the user has not preset the number of |
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303 | !-- cycles to be performed |
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304 | IF ( maximum_mgcycles == 0 ) THEN |
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305 | CALL resid_noopt( d, p_loc, r ) |
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306 | maxerror = SUM( r(nzb+1:nzt,nys:nyn,nxl:nxr)**2 ) |
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307 | |
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308 | #if defined( __parallel ) |
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309 | IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr ) |
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310 | CALL MPI_ALLREDUCE( maxerror, residual_norm, 1, MPI_REAL, & |
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311 | MPI_SUM, comm2d, ierr) |
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312 | #else |
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313 | residual_norm = maxerror |
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314 | #endif |
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315 | residual_norm = SQRT( residual_norm ) |
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316 | ENDIF |
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317 | |
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318 | mgcycles = mgcycles + 1 |
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319 | |
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320 | ! |
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321 | !-- If the user has not limited the number of cycles, stop the run in case |
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322 | !-- of insufficient convergence |
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323 | IF ( mgcycles > 1000 .AND. mg_cycles == -1 ) THEN |
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324 | message_string = 'no sufficient convergence within 1000 cycles' |
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325 | CALL message( 'poismg_noopt', 'PA0283', 1, 2, 0, 6, 0 ) |
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326 | ENDIF |
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327 | |
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328 | ENDDO |
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329 | |
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330 | DEALLOCATE( p3 ) |
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331 | |
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332 | ! |
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333 | !-- Unset the grid level. Variable is used to determine the MPI datatypes for |
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334 | !-- ghost point exchange |
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335 | grid_level = 0 |
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336 | |
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337 | CALL cpu_log( log_point_s(29), 'poismg_noopt', 'stop' ) |
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338 | |
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339 | END SUBROUTINE poismg_noopt |
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340 | |
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341 | |
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342 | !------------------------------------------------------------------------------! |
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343 | ! Description: |
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344 | ! ------------ |
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345 | !> Computes the residual of the perturbation pressure. |
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346 | !------------------------------------------------------------------------------! |
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347 | SUBROUTINE resid_noopt( f_mg, p_mg, r ) |
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348 | |
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349 | |
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350 | USE arrays_3d, & |
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351 | ONLY: f1_mg, f2_mg, f3_mg, rho_air_mg |
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352 | |
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353 | USE control_parameters, & |
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354 | ONLY: bc_lr_cyc, bc_ns_cyc, ibc_p_b, ibc_p_t |
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355 | |
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356 | USE grid_variables, & |
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357 | ONLY: ddx2_mg, ddy2_mg |
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358 | |
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359 | USE indices, & |
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360 | ONLY: flags, wall_flags_1, wall_flags_2, wall_flags_3, wall_flags_4,& |
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361 | wall_flags_5, wall_flags_6, wall_flags_7, wall_flags_8, & |
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362 | wall_flags_9, wall_flags_10, nxl_mg, nxr_mg, nys_mg, nyn_mg, & |
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363 | nzb, nzt_mg |
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364 | |
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365 | USE kinds |
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366 | |
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367 | IMPLICIT NONE |
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368 | |
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369 | INTEGER(iwp) :: i |
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370 | INTEGER(iwp) :: j |
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371 | INTEGER(iwp) :: k |
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372 | INTEGER(iwp) :: l |
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373 | |
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374 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
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375 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
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376 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: f_mg !< |
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377 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
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378 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
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379 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: p_mg !< |
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380 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
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381 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
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382 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: r !< |
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383 | |
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384 | ! |
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385 | !-- Calculate the residual |
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386 | l = grid_level |
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387 | |
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388 | ! |
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389 | !-- Choose flag array of this level |
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390 | SELECT CASE ( l ) |
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391 | CASE ( 1 ) |
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392 | flags => wall_flags_1 |
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393 | CASE ( 2 ) |
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394 | flags => wall_flags_2 |
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395 | CASE ( 3 ) |
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396 | flags => wall_flags_3 |
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397 | CASE ( 4 ) |
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398 | flags => wall_flags_4 |
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399 | CASE ( 5 ) |
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400 | flags => wall_flags_5 |
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401 | CASE ( 6 ) |
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402 | flags => wall_flags_6 |
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403 | CASE ( 7 ) |
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404 | flags => wall_flags_7 |
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405 | CASE ( 8 ) |
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406 | flags => wall_flags_8 |
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407 | CASE ( 9 ) |
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408 | flags => wall_flags_9 |
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409 | CASE ( 10 ) |
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410 | flags => wall_flags_10 |
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411 | END SELECT |
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412 | |
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413 | !$OMP PARALLEL PRIVATE (i,j,k) |
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414 | !$OMP DO |
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415 | DO i = nxl_mg(l), nxr_mg(l) |
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416 | DO j = nys_mg(l), nyn_mg(l) |
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417 | DO k = nzb+1, nzt_mg(l) |
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418 | r(k,j,i) = f_mg(k,j,i) & |
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419 | - rho_air_mg(k,l) * ddx2_mg(l) * & |
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420 | ( p_mg(k,j,i+1) + IBITS( flags(k,j,i), 5, 1 ) * & |
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421 | ( p_mg(k,j,i) - p_mg(k,j,i+1) ) + & |
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422 | p_mg(k,j,i-1) + IBITS( flags(k,j,i), 4, 1 ) * & |
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423 | ( p_mg(k,j,i) - p_mg(k,j,i-1) ) ) & |
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424 | - rho_air_mg(k,l) * ddy2_mg(l) * & |
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425 | ( p_mg(k,j+1,i) + IBITS( flags(k,j,i), 3, 1 ) * & |
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426 | ( p_mg(k,j,i) - p_mg(k,j+1,i) ) + & |
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427 | p_mg(k,j-1,i) + IBITS( flags(k,j,i), 2, 1 ) * & |
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428 | ( p_mg(k,j,i) - p_mg(k,j-1,i) ) ) & |
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429 | - f2_mg(k,l) * & |
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430 | ( p_mg(k+1,j,i) + IBITS( flags(k,j,i), 0, 1 ) * & |
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431 | ( p_mg(k,j,i) - p_mg(k+1,j,i) ) ) & |
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432 | - f3_mg(k,l) * & |
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433 | ( p_mg(k-1,j,i) + IBITS( flags(k,j,i), 0, 1 ) * & |
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434 | ( p_mg(k,j,i) - p_mg(k-1,j,i) ) ) & |
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435 | + f1_mg(k,l) * p_mg(k,j,i) |
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436 | ! |
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437 | !-- Residual within topography should be zero |
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438 | r(k,j,i) = r(k,j,i) * ( 1.0_wp - IBITS( flags(k,j,i), 6, 1 ) ) |
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439 | ENDDO |
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440 | ENDDO |
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441 | ENDDO |
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442 | !$OMP END PARALLEL |
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443 | |
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444 | ! |
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445 | !-- Horizontal boundary conditions |
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446 | CALL exchange_horiz( r, 1) |
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447 | |
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448 | IF ( .NOT. bc_lr_cyc ) THEN |
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449 | IF ( bc_dirichlet_l .OR. bc_radiation_l ) THEN |
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450 | r(:,:,nxl_mg(l)-1) = r(:,:,nxl_mg(l)) |
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451 | ENDIF |
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452 | IF ( bc_dirichlet_r .OR. bc_radiation_r ) THEN |
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453 | r(:,:,nxr_mg(l)+1) = r(:,:,nxr_mg(l)) |
---|
454 | ENDIF |
---|
455 | ENDIF |
---|
456 | |
---|
457 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
458 | IF ( bc_dirichlet_n .OR. bc_radiation_n ) THEN |
---|
459 | r(:,nyn_mg(l)+1,:) = r(:,nyn_mg(l),:) |
---|
460 | ENDIF |
---|
461 | IF ( bc_dirichlet_s .OR. bc_radiation_s ) THEN |
---|
462 | r(:,nys_mg(l)-1,:) = r(:,nys_mg(l),:) |
---|
463 | ENDIF |
---|
464 | ENDIF |
---|
465 | |
---|
466 | ! |
---|
467 | !-- Boundary conditions at bottom and top of the domain. |
---|
468 | !-- These points are not handled by the above loop. Points may be within |
---|
469 | !-- buildings, but that doesn't matter. |
---|
470 | IF ( ibc_p_b == 1 ) THEN |
---|
471 | r(nzb,:,: ) = r(nzb+1,:,:) |
---|
472 | ELSE |
---|
473 | r(nzb,:,: ) = 0.0_wp |
---|
474 | ENDIF |
---|
475 | |
---|
476 | IF ( ibc_p_t == 1 ) THEN |
---|
477 | r(nzt_mg(l)+1,:,: ) = r(nzt_mg(l),:,:) |
---|
478 | ELSE |
---|
479 | r(nzt_mg(l)+1,:,: ) = 0.0_wp |
---|
480 | ENDIF |
---|
481 | |
---|
482 | |
---|
483 | END SUBROUTINE resid_noopt |
---|
484 | |
---|
485 | |
---|
486 | !------------------------------------------------------------------------------! |
---|
487 | ! Description: |
---|
488 | ! ------------ |
---|
489 | !> Interpolates the residual on the next coarser grid with "full weighting" |
---|
490 | !> scheme. |
---|
491 | !------------------------------------------------------------------------------! |
---|
492 | SUBROUTINE restrict_noopt( f_mg, r ) |
---|
493 | |
---|
494 | |
---|
495 | USE control_parameters, & |
---|
496 | ONLY: bc_lr_cyc, bc_ns_cyc, grid_level, ibc_p_b, ibc_p_t |
---|
497 | |
---|
498 | USE indices, & |
---|
499 | ONLY: flags, wall_flags_1, wall_flags_2, wall_flags_3, wall_flags_4,& |
---|
500 | wall_flags_5, wall_flags_6, wall_flags_7, wall_flags_8, & |
---|
501 | wall_flags_9, wall_flags_10, nxl_mg, nxr_mg, nys_mg, nyn_mg, & |
---|
502 | nzb, nzt_mg |
---|
503 | |
---|
504 | USE kinds |
---|
505 | |
---|
506 | IMPLICIT NONE |
---|
507 | |
---|
508 | INTEGER(iwp) :: i !< |
---|
509 | INTEGER(iwp) :: ic !< |
---|
510 | INTEGER(iwp) :: j !< |
---|
511 | INTEGER(iwp) :: jc !< |
---|
512 | INTEGER(iwp) :: k !< |
---|
513 | INTEGER(iwp) :: kc !< |
---|
514 | INTEGER(iwp) :: l !< |
---|
515 | |
---|
516 | REAL(wp) :: rkjim !< |
---|
517 | REAL(wp) :: rkjip !< |
---|
518 | REAL(wp) :: rkjmi !< |
---|
519 | REAL(wp) :: rkjmim !< |
---|
520 | REAL(wp) :: rkjmip !< |
---|
521 | REAL(wp) :: rkjpi !< |
---|
522 | REAL(wp) :: rkjpim !< |
---|
523 | REAL(wp) :: rkjpip !< |
---|
524 | REAL(wp) :: rkmji !< |
---|
525 | REAL(wp) :: rkmjim !< |
---|
526 | REAL(wp) :: rkmjip !< |
---|
527 | REAL(wp) :: rkmjmi !< |
---|
528 | REAL(wp) :: rkmjmim !< |
---|
529 | REAL(wp) :: rkmjmip !< |
---|
530 | REAL(wp) :: rkmjpi !< |
---|
531 | REAL(wp) :: rkmjpim !< |
---|
532 | REAL(wp) :: rkmjpip !< |
---|
533 | |
---|
534 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
535 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
536 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: f_mg !< |
---|
537 | |
---|
538 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level+1)+1, & |
---|
539 | nys_mg(grid_level+1)-1:nyn_mg(grid_level+1)+1, & |
---|
540 | nxl_mg(grid_level+1)-1:nxr_mg(grid_level+1)+1) :: r !< |
---|
541 | |
---|
542 | ! |
---|
543 | !-- Interpolate the residual |
---|
544 | l = grid_level |
---|
545 | |
---|
546 | ! |
---|
547 | !-- Choose flag array of the upper level |
---|
548 | SELECT CASE ( l+1 ) |
---|
549 | CASE ( 1 ) |
---|
550 | flags => wall_flags_1 |
---|
551 | CASE ( 2 ) |
---|
552 | flags => wall_flags_2 |
---|
553 | CASE ( 3 ) |
---|
554 | flags => wall_flags_3 |
---|
555 | CASE ( 4 ) |
---|
556 | flags => wall_flags_4 |
---|
557 | CASE ( 5 ) |
---|
558 | flags => wall_flags_5 |
---|
559 | CASE ( 6 ) |
---|
560 | flags => wall_flags_6 |
---|
561 | CASE ( 7 ) |
---|
562 | flags => wall_flags_7 |
---|
563 | CASE ( 8 ) |
---|
564 | flags => wall_flags_8 |
---|
565 | CASE ( 9 ) |
---|
566 | flags => wall_flags_9 |
---|
567 | CASE ( 10 ) |
---|
568 | flags => wall_flags_10 |
---|
569 | END SELECT |
---|
570 | |
---|
571 | !$OMP PARALLEL PRIVATE (i,j,k,ic,jc,kc, rkjim,rkjip,rkjpi,rkjmi,rkjmim,rkjpim, & |
---|
572 | !$OMP rkjmip, rkjpip,rkmji,rkmjim,rkmjip,rkmjpi,rkmjmi,rkmjmim,rkmjpim,rkmjmip,& |
---|
573 | !$OMP rkmjpip ) |
---|
574 | !$OMP DO |
---|
575 | DO ic = nxl_mg(l), nxr_mg(l) |
---|
576 | i = 2*ic |
---|
577 | DO jc = nys_mg(l), nyn_mg(l) |
---|
578 | j = 2*jc |
---|
579 | DO kc = nzb+1, nzt_mg(l) |
---|
580 | k = 2*kc-1 |
---|
581 | ! |
---|
582 | !-- Use implicit Neumann BCs if the respective gridpoint is inside |
---|
583 | !-- the building |
---|
584 | rkjim = r(k,j,i-1) + IBITS( flags(k,j,i-1), 6, 1 ) * & |
---|
585 | ( r(k,j,i) - r(k,j,i-1) ) |
---|
586 | rkjip = r(k,j,i+1) + IBITS( flags(k,j,i+1), 6, 1 ) * & |
---|
587 | ( r(k,j,i) - r(k,j,i+1) ) |
---|
588 | rkjpi = r(k,j+1,i) + IBITS( flags(k,j+1,i), 6, 1 ) * & |
---|
589 | ( r(k,j,i) - r(k,j+1,i) ) |
---|
590 | rkjmi = r(k,j-1,i) + IBITS( flags(k,j-1,i), 6, 1 ) * & |
---|
591 | ( r(k,j,i) - r(k,j-1,i) ) |
---|
592 | rkjmim = r(k,j-1,i-1) + IBITS( flags(k,j-1,i-1), 6, 1 ) * & |
---|
593 | ( r(k,j,i) - r(k,j-1,i-1) ) |
---|
594 | rkjpim = r(k,j+1,i-1) + IBITS( flags(k,j+1,i-1), 6, 1 ) * & |
---|
595 | ( r(k,j,i) - r(k,j+1,i-1) ) |
---|
596 | rkjmip = r(k,j-1,i+1) + IBITS( flags(k,j-1,i+1), 6, 1 ) * & |
---|
597 | ( r(k,j,i) - r(k,j-1,i+1) ) |
---|
598 | rkjpip = r(k,j+1,i+1) + IBITS( flags(k,j+1,i+1), 6, 1 ) * & |
---|
599 | ( r(k,j,i) - r(k,j+1,i+1) ) |
---|
600 | rkmji = r(k-1,j,i) + IBITS( flags(k-1,j,i), 6, 1 ) * & |
---|
601 | ( r(k,j,i) - r(k-1,j,i) ) |
---|
602 | rkmjim = r(k-1,j,i-1) + IBITS( flags(k-1,j,i-1), 6, 1 ) * & |
---|
603 | ( r(k,j,i) - r(k-1,j,i-1) ) |
---|
604 | rkmjip = r(k-1,j,i+1) + IBITS( flags(k-1,j,i+1), 6, 1 ) * & |
---|
605 | ( r(k,j,i) - r(k-1,j,i+1) ) |
---|
606 | rkmjpi = r(k-1,j+1,i) + IBITS( flags(k-1,j+1,i), 6, 1 ) * & |
---|
607 | ( r(k,j,i) - r(k-1,j+1,i) ) |
---|
608 | rkmjmi = r(k-1,j-1,i) + IBITS( flags(k-1,j-1,i), 6, 1 ) * & |
---|
609 | ( r(k,j,i) - r(k-1,j-1,i) ) |
---|
610 | rkmjmim = r(k-1,j-1,i-1) + IBITS( flags(k-1,j-1,i-1), 6, 1 ) * & |
---|
611 | ( r(k,j,i) - r(k-1,j-1,i-1) ) |
---|
612 | rkmjpim = r(k-1,j+1,i-1) + IBITS( flags(k-1,j+1,i-1), 6, 1 ) * & |
---|
613 | ( r(k,j,i) - r(k-1,j+1,i-1) ) |
---|
614 | rkmjmip = r(k-1,j-1,i+1) + IBITS( flags(k-1,j-1,i+1), 6, 1 ) * & |
---|
615 | ( r(k,j,i) - r(k-1,j-1,i+1) ) |
---|
616 | rkmjpip = r(k-1,j+1,i+1) + IBITS( flags(k-1,j+1,i+1), 6, 1 ) * & |
---|
617 | ( r(k,j,i) - r(k-1,j+1,i+1) ) |
---|
618 | |
---|
619 | f_mg(kc,jc,ic) = 1.0_wp / 64.0_wp * ( & |
---|
620 | 8.0_wp * r(k,j,i) & |
---|
621 | + 4.0_wp * ( rkjim + rkjip + & |
---|
622 | rkjpi + rkjmi ) & |
---|
623 | + 2.0_wp * ( rkjmim + rkjpim + & |
---|
624 | rkjmip + rkjpip ) & |
---|
625 | + 4.0_wp * rkmji & |
---|
626 | + 2.0_wp * ( rkmjim + rkmjim + & |
---|
627 | rkmjpi + rkmjmi ) & |
---|
628 | + ( rkmjmim + rkmjpim + & |
---|
629 | rkmjmip + rkmjpip ) & |
---|
630 | + 4.0_wp * r(k+1,j,i) & |
---|
631 | + 2.0_wp * ( r(k+1,j,i-1) + r(k+1,j,i+1) + & |
---|
632 | r(k+1,j+1,i) + r(k+1,j-1,i) ) & |
---|
633 | + ( r(k+1,j-1,i-1) + r(k+1,j+1,i-1) + & |
---|
634 | r(k+1,j-1,i+1) + r(k+1,j+1,i+1) ) & |
---|
635 | ) |
---|
636 | |
---|
637 | ! f_mg(kc,jc,ic) = 1.0_wp / 64.0_wp * ( & |
---|
638 | ! 8.0_wp * r(k,j,i) & |
---|
639 | ! + 4.0_wp * ( r(k,j,i-1) + r(k,j,i+1) + & |
---|
640 | ! r(k,j+1,i) + r(k,j-1,i) ) & |
---|
641 | ! + 2.0_wp * ( r(k,j-1,i-1) + r(k,j+1,i-1) + & |
---|
642 | ! r(k,j-1,i+1) + r(k,j+1,i+1) ) & |
---|
643 | ! + 4.0_wp * r(k-1,j,i) & |
---|
644 | ! + 2.0_wp * ( r(k-1,j,i-1) + r(k-1,j,i+1) + & |
---|
645 | ! r(k-1,j+1,i) + r(k-1,j-1,i) ) & |
---|
646 | ! + ( r(k-1,j-1,i-1) + r(k-1,j+1,i-1) + & |
---|
647 | ! r(k-1,j-1,i+1) + r(k-1,j+1,i+1) ) & |
---|
648 | ! + 4.0_wp * r(k+1,j,i) & |
---|
649 | ! + 2.0_wp * ( r(k+1,j,i-1) + r(k+1,j,i+1) + & |
---|
650 | ! r(k+1,j+1,i) + r(k+1,j-1,i) ) & |
---|
651 | ! + ( r(k+1,j-1,i-1) + r(k+1,j+1,i-1) + & |
---|
652 | ! r(k+1,j-1,i+1) + r(k+1,j+1,i+1) ) & |
---|
653 | ! ) |
---|
654 | ENDDO |
---|
655 | ENDDO |
---|
656 | ENDDO |
---|
657 | !$OMP END PARALLEL |
---|
658 | |
---|
659 | ! |
---|
660 | !-- Horizontal boundary conditions |
---|
661 | CALL exchange_horiz( f_mg, 1) |
---|
662 | |
---|
663 | IF ( .NOT. bc_lr_cyc ) THEN |
---|
664 | IF ( bc_dirichlet_l .OR. bc_radiation_l ) THEN |
---|
665 | f_mg(:,:,nxl_mg(l)-1) = f_mg(:,:,nxl_mg(l)) |
---|
666 | ENDIF |
---|
667 | IF ( bc_dirichlet_r .OR. bc_radiation_r ) THEN |
---|
668 | f_mg(:,:,nxr_mg(l)+1) = f_mg(:,:,nxr_mg(l)) |
---|
669 | ENDIF |
---|
670 | ENDIF |
---|
671 | |
---|
672 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
673 | IF ( bc_dirichlet_n .OR. bc_radiation_n ) THEN |
---|
674 | f_mg(:,nyn_mg(l)+1,:) = f_mg(:,nyn_mg(l),:) |
---|
675 | ENDIF |
---|
676 | IF ( bc_dirichlet_s .OR. bc_radiation_s ) THEN |
---|
677 | f_mg(:,nys_mg(l)-1,:) = f_mg(:,nys_mg(l),:) |
---|
678 | ENDIF |
---|
679 | ENDIF |
---|
680 | |
---|
681 | ! |
---|
682 | !-- Boundary conditions at bottom and top of the domain. |
---|
683 | !-- These points are not handled by the above loop. Points may be within |
---|
684 | !-- buildings, but that doesn't matter. |
---|
685 | IF ( ibc_p_b == 1 ) THEN |
---|
686 | f_mg(nzb,:,: ) = f_mg(nzb+1,:,:) |
---|
687 | ELSE |
---|
688 | f_mg(nzb,:,: ) = 0.0_wp |
---|
689 | ENDIF |
---|
690 | |
---|
691 | IF ( ibc_p_t == 1 ) THEN |
---|
692 | f_mg(nzt_mg(l)+1,:,: ) = f_mg(nzt_mg(l),:,:) |
---|
693 | ELSE |
---|
694 | f_mg(nzt_mg(l)+1,:,: ) = 0.0_wp |
---|
695 | ENDIF |
---|
696 | |
---|
697 | |
---|
698 | END SUBROUTINE restrict_noopt |
---|
699 | |
---|
700 | |
---|
701 | !------------------------------------------------------------------------------! |
---|
702 | ! Description: |
---|
703 | ! ------------ |
---|
704 | !> Interpolates the correction of the perturbation pressure |
---|
705 | !> to the next finer grid. |
---|
706 | !------------------------------------------------------------------------------! |
---|
707 | SUBROUTINE prolong_noopt( p, temp ) |
---|
708 | |
---|
709 | |
---|
710 | USE control_parameters, & |
---|
711 | ONLY: bc_lr_cyc, bc_ns_cyc, ibc_p_b, ibc_p_t |
---|
712 | USE indices, & |
---|
713 | ONLY: nxl_mg, nxr_mg, nys_mg, nyn_mg, nzb, nzt_mg |
---|
714 | |
---|
715 | USE kinds |
---|
716 | |
---|
717 | IMPLICIT NONE |
---|
718 | |
---|
719 | INTEGER(iwp) :: i !< |
---|
720 | INTEGER(iwp) :: j !< |
---|
721 | INTEGER(iwp) :: k !< |
---|
722 | INTEGER(iwp) :: l !< |
---|
723 | |
---|
724 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level-1)+1, & |
---|
725 | nys_mg(grid_level-1)-1:nyn_mg(grid_level-1)+1, & |
---|
726 | nxl_mg(grid_level-1)-1:nxr_mg(grid_level-1)+1 ) :: p !< |
---|
727 | |
---|
728 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
729 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
730 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: temp !< |
---|
731 | |
---|
732 | |
---|
733 | ! |
---|
734 | !-- First, store elements of the coarser grid on the next finer grid |
---|
735 | l = grid_level |
---|
736 | |
---|
737 | !$OMP PARALLEL PRIVATE (i,j,k) |
---|
738 | !$OMP DO |
---|
739 | DO i = nxl_mg(l-1), nxr_mg(l-1) |
---|
740 | DO j = nys_mg(l-1), nyn_mg(l-1) |
---|
741 | !CDIR NODEP |
---|
742 | DO k = nzb+1, nzt_mg(l-1) |
---|
743 | ! |
---|
744 | !-- Points of the coarse grid are directly stored on the next finer |
---|
745 | !-- grid |
---|
746 | temp(2*k-1,2*j,2*i) = p(k,j,i) |
---|
747 | ! |
---|
748 | !-- Points between two coarse-grid points |
---|
749 | temp(2*k-1,2*j,2*i+1) = 0.5_wp * ( p(k,j,i) + p(k,j,i+1) ) |
---|
750 | temp(2*k-1,2*j+1,2*i) = 0.5_wp * ( p(k,j,i) + p(k,j+1,i) ) |
---|
751 | temp(2*k,2*j,2*i) = 0.5_wp * ( p(k,j,i) + p(k+1,j,i) ) |
---|
752 | ! |
---|
753 | !-- Points in the center of the planes stretched by four points |
---|
754 | !-- of the coarse grid cube |
---|
755 | temp(2*k-1,2*j+1,2*i+1) = 0.25_wp * ( p(k,j,i) + p(k,j,i+1) + & |
---|
756 | p(k,j+1,i) + p(k,j+1,i+1) ) |
---|
757 | temp(2*k,2*j,2*i+1) = 0.25_wp * ( p(k,j,i) + p(k,j,i+1) + & |
---|
758 | p(k+1,j,i) + p(k+1,j,i+1) ) |
---|
759 | temp(2*k,2*j+1,2*i) = 0.25_wp * ( p(k,j,i) + p(k,j+1,i) + & |
---|
760 | p(k+1,j,i) + p(k+1,j+1,i) ) |
---|
761 | ! |
---|
762 | !-- Points in the middle of coarse grid cube |
---|
763 | temp(2*k,2*j+1,2*i+1) = 0.125_wp * ( p(k,j,i) + p(k,j,i+1) + & |
---|
764 | p(k,j+1,i) + p(k,j+1,i+1) + & |
---|
765 | p(k+1,j,i) + p(k+1,j,i+1) + & |
---|
766 | p(k+1,j+1,i) + p(k+1,j+1,i+1) ) |
---|
767 | ENDDO |
---|
768 | ENDDO |
---|
769 | ENDDO |
---|
770 | !$OMP END PARALLEL |
---|
771 | |
---|
772 | ! |
---|
773 | !-- Horizontal boundary conditions |
---|
774 | CALL exchange_horiz( temp, 1) |
---|
775 | |
---|
776 | IF ( .NOT. bc_lr_cyc ) THEN |
---|
777 | IF ( bc_dirichlet_l .OR. bc_radiation_l ) THEN |
---|
778 | temp(:,:,nxl_mg(l)-1) = temp(:,:,nxl_mg(l)) |
---|
779 | ENDIF |
---|
780 | IF ( bc_dirichlet_r .OR. bc_radiation_r ) THEN |
---|
781 | temp(:,:,nxr_mg(l)+1) = temp(:,:,nxr_mg(l)) |
---|
782 | ENDIF |
---|
783 | ENDIF |
---|
784 | |
---|
785 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
786 | IF ( bc_dirichlet_n .OR. bc_radiation_n ) THEN |
---|
787 | temp(:,nyn_mg(l)+1,:) = temp(:,nyn_mg(l),:) |
---|
788 | ENDIF |
---|
789 | IF ( bc_dirichlet_s .OR. bc_radiation_s ) THEN |
---|
790 | temp(:,nys_mg(l)-1,:) = temp(:,nys_mg(l),:) |
---|
791 | ENDIF |
---|
792 | ENDIF |
---|
793 | |
---|
794 | ! |
---|
795 | !-- Bottom and top boundary conditions |
---|
796 | IF ( ibc_p_b == 1 ) THEN |
---|
797 | temp(nzb,:,: ) = temp(nzb+1,:,:) |
---|
798 | ELSE |
---|
799 | temp(nzb,:,: ) = 0.0_wp |
---|
800 | ENDIF |
---|
801 | |
---|
802 | IF ( ibc_p_t == 1 ) THEN |
---|
803 | temp(nzt_mg(l)+1,:,: ) = temp(nzt_mg(l),:,:) |
---|
804 | ELSE |
---|
805 | temp(nzt_mg(l)+1,:,: ) = 0.0_wp |
---|
806 | ENDIF |
---|
807 | |
---|
808 | |
---|
809 | END SUBROUTINE prolong_noopt |
---|
810 | |
---|
811 | |
---|
812 | !------------------------------------------------------------------------------! |
---|
813 | ! Description: |
---|
814 | ! ------------ |
---|
815 | !> Relaxation method for the multigrid scheme. A Gauss-Seidel iteration with |
---|
816 | !> 3D-Red-Black decomposition (GS-RB) is used. |
---|
817 | !------------------------------------------------------------------------------! |
---|
818 | SUBROUTINE redblack_noopt( f_mg, p_mg ) |
---|
819 | |
---|
820 | |
---|
821 | USE arrays_3d, & |
---|
822 | ONLY: f1_mg, f2_mg, f3_mg, rho_air_mg |
---|
823 | |
---|
824 | USE control_parameters, & |
---|
825 | ONLY: bc_lr_cyc, bc_ns_cyc, ibc_p_b, ibc_p_t, ngsrb |
---|
826 | |
---|
827 | USE cpulog, & |
---|
828 | ONLY: cpu_log, log_point_s |
---|
829 | |
---|
830 | USE grid_variables, & |
---|
831 | ONLY: ddx2_mg, ddy2_mg |
---|
832 | |
---|
833 | USE indices, & |
---|
834 | ONLY: flags, wall_flags_1, wall_flags_2, wall_flags_3, wall_flags_4,& |
---|
835 | wall_flags_5, wall_flags_6, wall_flags_7, wall_flags_8, & |
---|
836 | wall_flags_9, wall_flags_10, nxl_mg, nxr_mg, nys_mg, nyn_mg, & |
---|
837 | nzb, nzt_mg |
---|
838 | |
---|
839 | USE kinds |
---|
840 | |
---|
841 | IMPLICIT NONE |
---|
842 | |
---|
843 | INTEGER(iwp) :: color !< |
---|
844 | INTEGER(iwp) :: i !< |
---|
845 | INTEGER(iwp) :: ic !< |
---|
846 | INTEGER(iwp) :: j !< |
---|
847 | INTEGER(iwp) :: jc !< |
---|
848 | INTEGER(iwp) :: jj !< |
---|
849 | INTEGER(iwp) :: k !< |
---|
850 | INTEGER(iwp) :: l !< |
---|
851 | INTEGER(iwp) :: n !< |
---|
852 | |
---|
853 | LOGICAL :: unroll !< |
---|
854 | |
---|
855 | REAL(wp) :: wall_left !< |
---|
856 | REAL(wp) :: wall_north !< |
---|
857 | REAL(wp) :: wall_right !< |
---|
858 | REAL(wp) :: wall_south !< |
---|
859 | REAL(wp) :: wall_total !< |
---|
860 | REAL(wp) :: wall_top !< |
---|
861 | |
---|
862 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
863 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
864 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: f_mg !< |
---|
865 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
866 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
867 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: p_mg !< |
---|
868 | |
---|
869 | l = grid_level |
---|
870 | |
---|
871 | ! |
---|
872 | !-- Choose flag array of this level |
---|
873 | SELECT CASE ( l ) |
---|
874 | CASE ( 1 ) |
---|
875 | flags => wall_flags_1 |
---|
876 | CASE ( 2 ) |
---|
877 | flags => wall_flags_2 |
---|
878 | CASE ( 3 ) |
---|
879 | flags => wall_flags_3 |
---|
880 | CASE ( 4 ) |
---|
881 | flags => wall_flags_4 |
---|
882 | CASE ( 5 ) |
---|
883 | flags => wall_flags_5 |
---|
884 | CASE ( 6 ) |
---|
885 | flags => wall_flags_6 |
---|
886 | CASE ( 7 ) |
---|
887 | flags => wall_flags_7 |
---|
888 | CASE ( 8 ) |
---|
889 | flags => wall_flags_8 |
---|
890 | CASE ( 9 ) |
---|
891 | flags => wall_flags_9 |
---|
892 | CASE ( 10 ) |
---|
893 | flags => wall_flags_10 |
---|
894 | END SELECT |
---|
895 | |
---|
896 | unroll = ( MOD( nyn_mg(l)-nys_mg(l)+1, 4 ) == 0 .AND. & |
---|
897 | MOD( nxr_mg(l)-nxl_mg(l)+1, 2 ) == 0 ) |
---|
898 | |
---|
899 | DO n = 1, ngsrb |
---|
900 | |
---|
901 | DO color = 1, 2 |
---|
902 | |
---|
903 | IF ( .NOT. unroll ) THEN |
---|
904 | |
---|
905 | CALL cpu_log( log_point_s(36), 'redblack_no_unroll_noopt', 'start' ) |
---|
906 | |
---|
907 | ! |
---|
908 | !-- Without unrolling of loops, no cache optimization |
---|
909 | DO i = nxl_mg(l), nxr_mg(l), 2 |
---|
910 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
---|
911 | DO k = nzb+1, nzt_mg(l), 2 |
---|
912 | ! p_mg(k,j,i) = 1.0_wp / f1_mg(k,l) * ( & |
---|
913 | ! ddx2_mg(l) * ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
914 | ! + ddy2_mg(l) * ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
915 | ! + f2_mg(k,l) * p_mg(k+1,j,i) & |
---|
916 | ! + f3_mg(k,l) * p_mg(k-1,j,i) - f_mg(k,j,i) & |
---|
917 | ! ) |
---|
918 | |
---|
919 | p_mg(k,j,i) = 1.0_wp / f1_mg(k,l) * ( & |
---|
920 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
921 | ( p_mg(k,j,i+1) + IBITS( flags(k,j,i), 5, 1 ) * & |
---|
922 | ( p_mg(k,j,i) - p_mg(k,j,i+1) ) + & |
---|
923 | p_mg(k,j,i-1) + IBITS( flags(k,j,i), 4, 1 ) * & |
---|
924 | ( p_mg(k,j,i) - p_mg(k,j,i-1) ) ) & |
---|
925 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
926 | ( p_mg(k,j+1,i) + IBITS( flags(k,j,i), 3, 1 ) * & |
---|
927 | ( p_mg(k,j,i) - p_mg(k,j+1,i) ) + & |
---|
928 | p_mg(k,j-1,i) + IBITS( flags(k,j,i), 2, 1 ) * & |
---|
929 | ( p_mg(k,j,i) - p_mg(k,j-1,i) ) ) & |
---|
930 | + f2_mg(k,l) * & |
---|
931 | ( p_mg(k+1,j,i) + IBITS( flags(k,j,i), 7, 1 ) * & |
---|
932 | ( p_mg(k,j,i) - p_mg(k+1,j,i) ) ) & |
---|
933 | + f3_mg(k,l) * & |
---|
934 | ( p_mg(k-1,j,i) + IBITS( flags(k,j,i), 0, 1 ) * & |
---|
935 | ( p_mg(k,j,i) - p_mg(k-1,j,i) ) ) & |
---|
936 | - f_mg(k,j,i) ) |
---|
937 | ENDDO |
---|
938 | ENDDO |
---|
939 | ENDDO |
---|
940 | |
---|
941 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
---|
942 | DO j = nys_mg(l) + (color-1), nyn_mg(l), 2 |
---|
943 | DO k = nzb+1, nzt_mg(l), 2 |
---|
944 | p_mg(k,j,i) = 1.0_wp / f1_mg(k,l) * ( & |
---|
945 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
946 | ( p_mg(k,j,i+1) + IBITS( flags(k,j,i), 5, 1 ) * & |
---|
947 | ( p_mg(k,j,i) - p_mg(k,j,i+1) ) + & |
---|
948 | p_mg(k,j,i-1) + IBITS( flags(k,j,i), 4, 1 ) * & |
---|
949 | ( p_mg(k,j,i) - p_mg(k,j,i-1) ) ) & |
---|
950 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
951 | ( p_mg(k,j+1,i) + IBITS( flags(k,j,i), 3, 1 ) * & |
---|
952 | ( p_mg(k,j,i) - p_mg(k,j+1,i) ) + & |
---|
953 | p_mg(k,j-1,i) + IBITS( flags(k,j,i), 2, 1 ) * & |
---|
954 | ( p_mg(k,j,i) - p_mg(k,j-1,i) ) ) & |
---|
955 | + f2_mg(k,l) * & |
---|
956 | ( p_mg(k+1,j,i) + IBITS( flags(k,j,i), 7, 1 ) * & |
---|
957 | ( p_mg(k,j,i) - p_mg(k+1,j,i) ) ) & |
---|
958 | + f3_mg(k,l) * & |
---|
959 | ( p_mg(k-1,j,i) + IBITS( flags(k,j,i), 0, 1 ) * & |
---|
960 | ( p_mg(k,j,i) - p_mg(k-1,j,i) ) ) & |
---|
961 | - f_mg(k,j,i) ) |
---|
962 | ENDDO |
---|
963 | ENDDO |
---|
964 | ENDDO |
---|
965 | |
---|
966 | DO i = nxl_mg(l), nxr_mg(l), 2 |
---|
967 | DO j = nys_mg(l) + (color-1), nyn_mg(l), 2 |
---|
968 | DO k = nzb+2, nzt_mg(l), 2 |
---|
969 | p_mg(k,j,i) = 1.0_wp / f1_mg(k,l) * ( & |
---|
970 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
971 | ( p_mg(k,j,i+1) + IBITS( flags(k,j,i), 5, 1 ) * & |
---|
972 | ( p_mg(k,j,i) - p_mg(k,j,i+1) ) + & |
---|
973 | p_mg(k,j,i-1) + IBITS( flags(k,j,i), 4, 1 ) * & |
---|
974 | ( p_mg(k,j,i) - p_mg(k,j,i-1) ) ) & |
---|
975 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
976 | ( p_mg(k,j+1,i) + IBITS( flags(k,j,i), 3, 1 ) * & |
---|
977 | ( p_mg(k,j,i) - p_mg(k,j+1,i) ) + & |
---|
978 | p_mg(k,j-1,i) + IBITS( flags(k,j,i), 2, 1 ) * & |
---|
979 | ( p_mg(k,j,i) - p_mg(k,j-1,i) ) ) & |
---|
980 | + f2_mg(k,l) * & |
---|
981 | ( p_mg(k+1,j,i) + IBITS( flags(k,j,i), 7, 1 ) * & |
---|
982 | ( p_mg(k,j,i) - p_mg(k+1,j,i) ) ) & |
---|
983 | + f3_mg(k,l) * & |
---|
984 | ( p_mg(k-1,j,i) + IBITS( flags(k,j,i), 0, 1 ) * & |
---|
985 | ( p_mg(k,j,i) - p_mg(k-1,j,i) ) ) & |
---|
986 | - f_mg(k,j,i) ) |
---|
987 | ENDDO |
---|
988 | ENDDO |
---|
989 | ENDDO |
---|
990 | |
---|
991 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
---|
992 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
---|
993 | DO k = nzb+2, nzt_mg(l), 2 |
---|
994 | p_mg(k,j,i) = 1.0_wp / f1_mg(k,l) * ( & |
---|
995 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
996 | ( p_mg(k,j,i+1) + IBITS( flags(k,j,i), 5, 1 ) * & |
---|
997 | ( p_mg(k,j,i) - p_mg(k,j,i+1) ) + & |
---|
998 | p_mg(k,j,i-1) + IBITS( flags(k,j,i), 4, 1 ) * & |
---|
999 | ( p_mg(k,j,i) - p_mg(k,j,i-1) ) ) & |
---|
1000 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
1001 | ( p_mg(k,j+1,i) + IBITS( flags(k,j,i), 3, 1 ) * & |
---|
1002 | ( p_mg(k,j,i) - p_mg(k,j+1,i) ) + & |
---|
1003 | p_mg(k,j-1,i) + IBITS( flags(k,j,i), 2, 1 ) * & |
---|
1004 | ( p_mg(k,j,i) - p_mg(k,j-1,i) ) ) & |
---|
1005 | + f2_mg(k,l) * & |
---|
1006 | ( p_mg(k+1,j,i) + IBITS( flags(k,j,i), 7, 1 ) * & |
---|
1007 | ( p_mg(k,j,i) - p_mg(k+1,j,i) ) ) & |
---|
1008 | + f3_mg(k,l) * & |
---|
1009 | ( p_mg(k-1,j,i) + IBITS( flags(k,j,i), 0, 1 ) * & |
---|
1010 | ( p_mg(k,j,i) - p_mg(k-1,j,i) ) ) & |
---|
1011 | - f_mg(k,j,i) ) |
---|
1012 | ENDDO |
---|
1013 | ENDDO |
---|
1014 | ENDDO |
---|
1015 | CALL cpu_log( log_point_s(36), 'redblack_no_unroll_noopt', 'stop' ) |
---|
1016 | |
---|
1017 | ELSE |
---|
1018 | |
---|
1019 | ! |
---|
1020 | !-- Loop unrolling along y, only one i loop for better cache use |
---|
1021 | CALL cpu_log( log_point_s(38), 'redblack_unroll_noopt', 'start' ) |
---|
1022 | DO ic = nxl_mg(l), nxr_mg(l), 2 |
---|
1023 | DO jc = nys_mg(l), nyn_mg(l), 4 |
---|
1024 | i = ic |
---|
1025 | jj = jc+2-color |
---|
1026 | DO k = nzb+1, nzt_mg(l), 2 |
---|
1027 | j = jj |
---|
1028 | p_mg(k,j,i) = 1.0_wp / f1_mg(k,l) * ( & |
---|
1029 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
1030 | ( p_mg(k,j,i+1) + IBITS( flags(k,j,i), 5, 1 ) * & |
---|
1031 | ( p_mg(k,j,i) - p_mg(k,j,i+1) ) + & |
---|
1032 | p_mg(k,j,i-1) + IBITS( flags(k,j,i), 4, 1 ) * & |
---|
1033 | ( p_mg(k,j,i) - p_mg(k,j,i-1) ) ) & |
---|
1034 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
1035 | ( p_mg(k,j+1,i) + IBITS( flags(k,j,i), 3, 1 ) * & |
---|
1036 | ( p_mg(k,j,i) - p_mg(k,j+1,i) ) + & |
---|
1037 | p_mg(k,j-1,i) + IBITS( flags(k,j,i), 2, 1 ) * & |
---|
1038 | ( p_mg(k,j,i) - p_mg(k,j-1,i) ) ) & |
---|
1039 | + f2_mg(k,l) * & |
---|
1040 | ( p_mg(k+1,j,i) + IBITS( flags(k,j,i), 7, 1 ) * & |
---|
1041 | ( p_mg(k,j,i) - p_mg(k+1,j,i) ) ) & |
---|
1042 | + f3_mg(k,l) * & |
---|
1043 | ( p_mg(k-1,j,i) + IBITS( flags(k,j,i), 0, 1 ) * & |
---|
1044 | ( p_mg(k,j,i) - p_mg(k-1,j,i) ) ) & |
---|
1045 | - f_mg(k,j,i) ) |
---|
1046 | j = jj+2 |
---|
1047 | p_mg(k,j,i) = 1.0_wp / f1_mg(k,l) * ( & |
---|
1048 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
1049 | ( p_mg(k,j,i+1) + IBITS( flags(k,j,i), 5, 1 ) * & |
---|
1050 | ( p_mg(k,j,i) - p_mg(k,j,i+1) ) + & |
---|
1051 | p_mg(k,j,i-1) + IBITS( flags(k,j,i), 4, 1 ) * & |
---|
1052 | ( p_mg(k,j,i) - p_mg(k,j,i-1) ) ) & |
---|
1053 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
1054 | ( p_mg(k,j+1,i) + IBITS( flags(k,j,i), 3, 1 ) * & |
---|
1055 | ( p_mg(k,j,i) - p_mg(k,j+1,i) ) + & |
---|
1056 | p_mg(k,j-1,i) + IBITS( flags(k,j,i), 2, 1 ) * & |
---|
1057 | ( p_mg(k,j,i) - p_mg(k,j-1,i) ) ) & |
---|
1058 | + f2_mg(k,l) * & |
---|
1059 | ( p_mg(k+1,j,i) + IBITS( flags(k,j,i), 7, 1 ) * & |
---|
1060 | ( p_mg(k,j,i) - p_mg(k+1,j,i) ) ) & |
---|
1061 | + f3_mg(k,l) * & |
---|
1062 | ( p_mg(k-1,j,i) + IBITS( flags(k,j,i), 0, 1 ) * & |
---|
1063 | ( p_mg(k,j,i) - p_mg(k-1,j,i) ) ) & |
---|
1064 | - f_mg(k,j,i) ) |
---|
1065 | ENDDO |
---|
1066 | |
---|
1067 | i = ic+1 |
---|
1068 | jj = jc+color-1 |
---|
1069 | DO k = nzb+1, nzt_mg(l), 2 |
---|
1070 | j =jj |
---|
1071 | p_mg(k,j,i) = 1.0_wp / f1_mg(k,l) * ( & |
---|
1072 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
1073 | ( p_mg(k,j,i+1) + IBITS( flags(k,j,i), 5, 1 ) * & |
---|
1074 | ( p_mg(k,j,i) - p_mg(k,j,i+1) ) + & |
---|
1075 | p_mg(k,j,i-1) + IBITS( flags(k,j,i), 4, 1 ) * & |
---|
1076 | ( p_mg(k,j,i) - p_mg(k,j,i-1) ) ) & |
---|
1077 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
1078 | ( p_mg(k,j+1,i) + IBITS( flags(k,j,i), 3, 1 ) * & |
---|
1079 | ( p_mg(k,j,i) - p_mg(k,j+1,i) ) + & |
---|
1080 | p_mg(k,j-1,i) + IBITS( flags(k,j,i), 2, 1 ) * & |
---|
1081 | ( p_mg(k,j,i) - p_mg(k,j-1,i) ) ) & |
---|
1082 | + f2_mg(k,l) * & |
---|
1083 | ( p_mg(k+1,j,i) + IBITS( flags(k,j,i), 7, 1 ) * & |
---|
1084 | ( p_mg(k,j,i) - p_mg(k+1,j,i) ) ) & |
---|
1085 | + f3_mg(k,l) * & |
---|
1086 | ( p_mg(k-1,j,i) + IBITS( flags(k,j,i), 0, 1 ) * & |
---|
1087 | ( p_mg(k,j,i) - p_mg(k-1,j,i) ) ) & |
---|
1088 | - f_mg(k,j,i) ) |
---|
1089 | j = jj+2 |
---|
1090 | p_mg(k,j,i) = 1.0_wp / f1_mg(k,l) * ( & |
---|
1091 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
1092 | ( p_mg(k,j,i+1) + IBITS( flags(k,j,i), 5, 1 ) * & |
---|
1093 | ( p_mg(k,j,i) - p_mg(k,j,i+1) ) + & |
---|
1094 | p_mg(k,j,i-1) + IBITS( flags(k,j,i), 4, 1 ) * & |
---|
1095 | ( p_mg(k,j,i) - p_mg(k,j,i-1) ) ) & |
---|
1096 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
1097 | ( p_mg(k,j+1,i) + IBITS( flags(k,j,i), 3, 1 ) * & |
---|
1098 | ( p_mg(k,j,i) - p_mg(k,j+1,i) ) + & |
---|
1099 | p_mg(k,j-1,i) + IBITS( flags(k,j,i), 2, 1 ) * & |
---|
1100 | ( p_mg(k,j,i) - p_mg(k,j-1,i) ) ) & |
---|
1101 | + f2_mg(k,l) * & |
---|
1102 | ( p_mg(k+1,j,i) + IBITS( flags(k,j,i), 7, 1 ) * & |
---|
1103 | ( p_mg(k,j,i) - p_mg(k+1,j,i) ) ) & |
---|
1104 | + f3_mg(k,l) * & |
---|
1105 | ( p_mg(k-1,j,i) + IBITS( flags(k,j,i), 0, 1 ) * & |
---|
1106 | ( p_mg(k,j,i) - p_mg(k-1,j,i) ) ) & |
---|
1107 | - f_mg(k,j,i) ) |
---|
1108 | ENDDO |
---|
1109 | |
---|
1110 | i = ic |
---|
1111 | jj = jc+color-1 |
---|
1112 | DO k = nzb+2, nzt_mg(l), 2 |
---|
1113 | j =jj |
---|
1114 | p_mg(k,j,i) = 1.0_wp / f1_mg(k,l) * ( & |
---|
1115 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
1116 | ( p_mg(k,j,i+1) + IBITS( flags(k,j,i), 5, 1 ) * & |
---|
1117 | ( p_mg(k,j,i) - p_mg(k,j,i+1) ) + & |
---|
1118 | p_mg(k,j,i-1) + IBITS( flags(k,j,i), 4, 1 ) * & |
---|
1119 | ( p_mg(k,j,i) - p_mg(k,j,i-1) ) ) & |
---|
1120 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
1121 | ( p_mg(k,j+1,i) + IBITS( flags(k,j,i), 3, 1 ) * & |
---|
1122 | ( p_mg(k,j,i) - p_mg(k,j+1,i) ) + & |
---|
1123 | p_mg(k,j-1,i) + IBITS( flags(k,j,i), 2, 1 ) * & |
---|
1124 | ( p_mg(k,j,i) - p_mg(k,j-1,i) ) ) & |
---|
1125 | + f2_mg(k,l) * & |
---|
1126 | ( p_mg(k+1,j,i) + IBITS( flags(k,j,i), 7, 1 ) * & |
---|
1127 | ( p_mg(k,j,i) - p_mg(k+1,j,i) ) ) & |
---|
1128 | + f3_mg(k,l) * & |
---|
1129 | ( p_mg(k-1,j,i) + IBITS( flags(k,j,i), 0, 1 ) * & |
---|
1130 | ( p_mg(k,j,i) - p_mg(k-1,j,i) ) ) & |
---|
1131 | - f_mg(k,j,i) ) |
---|
1132 | j = jj+2 |
---|
1133 | p_mg(k,j,i) = 1.0_wp / f1_mg(k,l) * ( & |
---|
1134 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
1135 | ( p_mg(k,j,i+1) + IBITS( flags(k,j,i), 5, 1 ) * & |
---|
1136 | ( p_mg(k,j,i) - p_mg(k,j,i+1) ) + & |
---|
1137 | p_mg(k,j,i-1) + IBITS( flags(k,j,i), 4, 1 ) * & |
---|
1138 | ( p_mg(k,j,i) - p_mg(k,j,i-1) ) ) & |
---|
1139 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
1140 | ( p_mg(k,j+1,i) + IBITS( flags(k,j,i), 3, 1 ) * & |
---|
1141 | ( p_mg(k,j,i) - p_mg(k,j+1,i) ) + & |
---|
1142 | p_mg(k,j-1,i) + IBITS( flags(k,j,i), 2, 1 ) * & |
---|
1143 | ( p_mg(k,j,i) - p_mg(k,j-1,i) ) ) & |
---|
1144 | + f2_mg(k,l) * & |
---|
1145 | ( p_mg(k+1,j,i) + IBITS( flags(k,j,i), 7, 1 ) * & |
---|
1146 | ( p_mg(k,j,i) - p_mg(k+1,j,i) ) ) & |
---|
1147 | + f3_mg(k,l) * & |
---|
1148 | ( p_mg(k-1,j,i) + IBITS( flags(k,j,i), 0, 1 ) * & |
---|
1149 | ( p_mg(k,j,i) - p_mg(k-1,j,i) ) ) & |
---|
1150 | - f_mg(k,j,i) ) |
---|
1151 | ENDDO |
---|
1152 | |
---|
1153 | i = ic+1 |
---|
1154 | jj = jc+2-color |
---|
1155 | DO k = nzb+2, nzt_mg(l), 2 |
---|
1156 | j =jj |
---|
1157 | p_mg(k,j,i) = 1.0_wp / f1_mg(k,l) * ( & |
---|
1158 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
1159 | ( p_mg(k,j,i+1) + IBITS( flags(k,j,i), 5, 1 ) * & |
---|
1160 | ( p_mg(k,j,i) - p_mg(k,j,i+1) ) + & |
---|
1161 | p_mg(k,j,i-1) + IBITS( flags(k,j,i), 4, 1 ) * & |
---|
1162 | ( p_mg(k,j,i) - p_mg(k,j,i-1) ) ) & |
---|
1163 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
1164 | ( p_mg(k,j+1,i) + IBITS( flags(k,j,i), 3, 1 ) * & |
---|
1165 | ( p_mg(k,j,i) - p_mg(k,j+1,i) ) + & |
---|
1166 | p_mg(k,j-1,i) + IBITS( flags(k,j,i), 2, 1 ) * & |
---|
1167 | ( p_mg(k,j,i) - p_mg(k,j-1,i) ) ) & |
---|
1168 | + f2_mg(k,l) * & |
---|
1169 | ( p_mg(k+1,j,i) + IBITS( flags(k,j,i), 7, 1 ) * & |
---|
1170 | ( p_mg(k,j,i) - p_mg(k+1,j,i) ) ) & |
---|
1171 | + f3_mg(k,l) * & |
---|
1172 | ( p_mg(k-1,j,i) + IBITS( flags(k,j,i), 0, 1 ) * & |
---|
1173 | ( p_mg(k,j,i) - p_mg(k-1,j,i) ) ) & |
---|
1174 | - f_mg(k,j,i) ) |
---|
1175 | j = jj+2 |
---|
1176 | p_mg(k,j,i) = 1.0_wp / f1_mg(k,l) * ( & |
---|
1177 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
1178 | ( p_mg(k,j,i+1) + IBITS( flags(k,j,i), 5, 1 ) * & |
---|
1179 | ( p_mg(k,j,i) - p_mg(k,j,i+1) ) + & |
---|
1180 | p_mg(k,j,i-1) + IBITS( flags(k,j,i), 4, 1 ) * & |
---|
1181 | ( p_mg(k,j,i) - p_mg(k,j,i-1) ) ) & |
---|
1182 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
1183 | ( p_mg(k,j+1,i) + IBITS( flags(k,j,i), 3, 1 ) * & |
---|
1184 | ( p_mg(k,j,i) - p_mg(k,j+1,i) ) + & |
---|
1185 | p_mg(k,j-1,i) + IBITS( flags(k,j,i), 2, 1 ) * & |
---|
1186 | ( p_mg(k,j,i) - p_mg(k,j-1,i) ) ) & |
---|
1187 | + f2_mg(k,l) * & |
---|
1188 | ( p_mg(k+1,j,i) + IBITS( flags(k,j,i), 7, 1 ) * & |
---|
1189 | ( p_mg(k,j,i) - p_mg(k+1,j,i) ) ) & |
---|
1190 | + f3_mg(k,l) * & |
---|
1191 | ( p_mg(k-1,j,i) + IBITS( flags(k,j,i), 0, 1 ) * & |
---|
1192 | ( p_mg(k,j,i) - p_mg(k-1,j,i) ) ) & |
---|
1193 | - f_mg(k,j,i) ) |
---|
1194 | ENDDO |
---|
1195 | |
---|
1196 | ENDDO |
---|
1197 | ENDDO |
---|
1198 | CALL cpu_log( log_point_s(38), 'redblack_unroll_noopt', 'stop' ) |
---|
1199 | |
---|
1200 | ENDIF |
---|
1201 | |
---|
1202 | ! |
---|
1203 | !-- Horizontal boundary conditions |
---|
1204 | CALL exchange_horiz( p_mg, 1 ) |
---|
1205 | |
---|
1206 | IF ( .NOT. bc_lr_cyc ) THEN |
---|
1207 | IF ( bc_dirichlet_l .OR. bc_radiation_l ) THEN |
---|
1208 | p_mg(:,:,nxl_mg(l)-1) = p_mg(:,:,nxl_mg(l)) |
---|
1209 | ENDIF |
---|
1210 | IF ( bc_dirichlet_r .OR. bc_radiation_r ) THEN |
---|
1211 | p_mg(:,:,nxr_mg(l)+1) = p_mg(:,:,nxr_mg(l)) |
---|
1212 | ENDIF |
---|
1213 | ENDIF |
---|
1214 | |
---|
1215 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
1216 | IF ( bc_dirichlet_n .OR. bc_radiation_n ) THEN |
---|
1217 | p_mg(:,nyn_mg(l)+1,:) = p_mg(:,nyn_mg(l),:) |
---|
1218 | ENDIF |
---|
1219 | IF ( bc_dirichlet_s .OR. bc_radiation_s ) THEN |
---|
1220 | p_mg(:,nys_mg(l)-1,:) = p_mg(:,nys_mg(l),:) |
---|
1221 | ENDIF |
---|
1222 | ENDIF |
---|
1223 | |
---|
1224 | ! |
---|
1225 | !-- Bottom and top boundary conditions |
---|
1226 | IF ( ibc_p_b == 1 ) THEN |
---|
1227 | p_mg(nzb,:,: ) = p_mg(nzb+1,:,:) |
---|
1228 | ELSE |
---|
1229 | p_mg(nzb,:,: ) = 0.0_wp |
---|
1230 | ENDIF |
---|
1231 | |
---|
1232 | IF ( ibc_p_t == 1 ) THEN |
---|
1233 | p_mg(nzt_mg(l)+1,:,: ) = p_mg(nzt_mg(l),:,:) |
---|
1234 | ELSE |
---|
1235 | p_mg(nzt_mg(l)+1,:,: ) = 0.0_wp |
---|
1236 | ENDIF |
---|
1237 | |
---|
1238 | ENDDO |
---|
1239 | |
---|
1240 | ENDDO |
---|
1241 | |
---|
1242 | ! |
---|
1243 | !-- Set pressure within topography and at the topography surfaces |
---|
1244 | !$OMP PARALLEL PRIVATE (i,j,k,wall_left,wall_north,wall_right,wall_south,wall_top,wall_total) |
---|
1245 | !$OMP DO |
---|
1246 | DO i = nxl_mg(l), nxr_mg(l) |
---|
1247 | DO j = nys_mg(l), nyn_mg(l) |
---|
1248 | DO k = nzb, nzt_mg(l) |
---|
1249 | ! |
---|
1250 | !-- First, set pressure inside topography to zero |
---|
1251 | p_mg(k,j,i) = p_mg(k,j,i) * ( 1.0_wp - IBITS( flags(k,j,i), 6, 1 ) ) |
---|
1252 | ! |
---|
1253 | !-- Second, determine if the gridpoint inside topography is adjacent |
---|
1254 | !-- to a wall and set its value to a value given by the average of |
---|
1255 | !-- those values obtained from Neumann boundary condition |
---|
1256 | wall_left = IBITS( flags(k,j,i-1), 5, 1 ) |
---|
1257 | wall_right = IBITS( flags(k,j,i+1), 4, 1 ) |
---|
1258 | wall_south = IBITS( flags(k,j-1,i), 3, 1 ) |
---|
1259 | wall_north = IBITS( flags(k,j+1,i), 2, 1 ) |
---|
1260 | wall_top = IBITS( flags(k+1,j,i), 0, 1 ) |
---|
1261 | wall_total = wall_left + wall_right + wall_south + wall_north + & |
---|
1262 | wall_top |
---|
1263 | |
---|
1264 | IF ( wall_total > 0.0_wp ) THEN |
---|
1265 | p_mg(k,j,i) = 1.0_wp / wall_total * & |
---|
1266 | ( wall_left * p_mg(k,j,i-1) + & |
---|
1267 | wall_right * p_mg(k,j,i+1) + & |
---|
1268 | wall_south * p_mg(k,j-1,i) + & |
---|
1269 | wall_north * p_mg(k,j+1,i) + & |
---|
1270 | wall_top * p_mg(k+1,j,i) ) |
---|
1271 | ENDIF |
---|
1272 | ENDDO |
---|
1273 | ENDDO |
---|
1274 | ENDDO |
---|
1275 | !$OMP END PARALLEL |
---|
1276 | |
---|
1277 | ! |
---|
1278 | !-- One more time horizontal boundary conditions |
---|
1279 | CALL exchange_horiz( p_mg, 1) |
---|
1280 | |
---|
1281 | |
---|
1282 | END SUBROUTINE redblack_noopt |
---|
1283 | |
---|
1284 | |
---|
1285 | |
---|
1286 | !------------------------------------------------------------------------------! |
---|
1287 | ! Description: |
---|
1288 | ! ------------ |
---|
1289 | !> Gather subdomain data from all PEs. |
---|
1290 | !------------------------------------------------------------------------------! |
---|
1291 | SUBROUTINE mg_gather_noopt( f2, f2_sub ) |
---|
1292 | |
---|
1293 | USE cpulog, & |
---|
1294 | ONLY: cpu_log, log_point_s |
---|
1295 | |
---|
1296 | USE indices, & |
---|
1297 | ONLY: mg_loc_ind, nxl_mg, nxr_mg, nys_mg, nyn_mg, nzb, nzt_mg |
---|
1298 | |
---|
1299 | USE kinds |
---|
1300 | |
---|
1301 | USE pegrid |
---|
1302 | |
---|
1303 | IMPLICIT NONE |
---|
1304 | |
---|
1305 | INTEGER(iwp) :: i !< |
---|
1306 | INTEGER(iwp) :: il !< |
---|
1307 | INTEGER(iwp) :: ir !< |
---|
1308 | INTEGER(iwp) :: j !< |
---|
1309 | INTEGER(iwp) :: jn !< |
---|
1310 | INTEGER(iwp) :: js !< |
---|
1311 | INTEGER(iwp) :: k !< |
---|
1312 | INTEGER(iwp) :: nwords !< |
---|
1313 | |
---|
1314 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
1315 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
1316 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: f2 !< |
---|
1317 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
1318 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
1319 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: f2_l !< |
---|
1320 | |
---|
1321 | REAL(wp), DIMENSION(nzb:mg_loc_ind(5,myid)+1, & |
---|
1322 | mg_loc_ind(3,myid)-1:mg_loc_ind(4,myid)+1, & |
---|
1323 | mg_loc_ind(1,myid)-1:mg_loc_ind(2,myid)+1) :: f2_sub !< |
---|
1324 | |
---|
1325 | |
---|
1326 | #if defined( __parallel ) |
---|
1327 | CALL cpu_log( log_point_s(34), 'mg_gather_noopt', 'start' ) |
---|
1328 | |
---|
1329 | f2_l = 0.0_wp |
---|
1330 | |
---|
1331 | ! |
---|
1332 | !-- Store the local subdomain array on the total array |
---|
1333 | js = mg_loc_ind(3,myid) |
---|
1334 | IF ( south_border_pe ) js = js - 1 |
---|
1335 | jn = mg_loc_ind(4,myid) |
---|
1336 | IF ( north_border_pe ) jn = jn + 1 |
---|
1337 | il = mg_loc_ind(1,myid) |
---|
1338 | IF ( left_border_pe ) il = il - 1 |
---|
1339 | ir = mg_loc_ind(2,myid) |
---|
1340 | IF ( right_border_pe ) ir = ir + 1 |
---|
1341 | DO i = il, ir |
---|
1342 | DO j = js, jn |
---|
1343 | DO k = nzb, nzt_mg(grid_level)+1 |
---|
1344 | f2_l(k,j,i) = f2_sub(k,j,i) |
---|
1345 | ENDDO |
---|
1346 | ENDDO |
---|
1347 | ENDDO |
---|
1348 | |
---|
1349 | ! |
---|
1350 | !-- Find out the number of array elements of the total array |
---|
1351 | nwords = SIZE( f2 ) |
---|
1352 | |
---|
1353 | ! |
---|
1354 | !-- Gather subdomain data from all PEs |
---|
1355 | IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr ) |
---|
1356 | CALL MPI_ALLREDUCE( f2_l(nzb,nys_mg(grid_level)-1,nxl_mg(grid_level)-1),& |
---|
1357 | f2(nzb,nys_mg(grid_level)-1,nxl_mg(grid_level)-1), & |
---|
1358 | nwords, MPI_REAL, MPI_SUM, comm2d, ierr ) |
---|
1359 | |
---|
1360 | CALL cpu_log( log_point_s(34), 'mg_gather_noopt', 'stop' ) |
---|
1361 | #endif |
---|
1362 | |
---|
1363 | END SUBROUTINE mg_gather_noopt |
---|
1364 | |
---|
1365 | |
---|
1366 | |
---|
1367 | !------------------------------------------------------------------------------! |
---|
1368 | ! Description: |
---|
1369 | ! ------------ |
---|
1370 | !> @todo It may be possible to improve the speed of this routine by using |
---|
1371 | !> non-blocking communication |
---|
1372 | !------------------------------------------------------------------------------! |
---|
1373 | SUBROUTINE mg_scatter_noopt( p2, p2_sub ) |
---|
1374 | |
---|
1375 | USE cpulog, & |
---|
1376 | ONLY: cpu_log, log_point_s |
---|
1377 | |
---|
1378 | USE indices, & |
---|
1379 | ONLY: mg_loc_ind, nxl_mg, nxr_mg, nys_mg, nyn_mg, nzb, nzt_mg |
---|
1380 | |
---|
1381 | USE kinds |
---|
1382 | |
---|
1383 | USE pegrid |
---|
1384 | |
---|
1385 | IMPLICIT NONE |
---|
1386 | |
---|
1387 | INTEGER(iwp) :: nwords !< |
---|
1388 | |
---|
1389 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level-1)+1, & |
---|
1390 | nys_mg(grid_level-1)-1:nyn_mg(grid_level-1)+1, & |
---|
1391 | nxl_mg(grid_level-1)-1:nxr_mg(grid_level-1)+1) :: p2 !< |
---|
1392 | |
---|
1393 | REAL(wp), DIMENSION(nzb:mg_loc_ind(5,myid)+1, & |
---|
1394 | mg_loc_ind(3,myid)-1:mg_loc_ind(4,myid)+1, & |
---|
1395 | mg_loc_ind(1,myid)-1:mg_loc_ind(2,myid)+1) :: p2_sub !< |
---|
1396 | |
---|
1397 | ! |
---|
1398 | !-- Find out the number of array elements of the subdomain array |
---|
1399 | nwords = SIZE( p2_sub ) |
---|
1400 | |
---|
1401 | #if defined( __parallel ) |
---|
1402 | CALL cpu_log( log_point_s(35), 'mg_scatter_noopt', 'start' ) |
---|
1403 | |
---|
1404 | p2_sub = p2(:,mg_loc_ind(3,myid)-1:mg_loc_ind(4,myid)+1, & |
---|
1405 | mg_loc_ind(1,myid)-1:mg_loc_ind(2,myid)+1) |
---|
1406 | |
---|
1407 | CALL cpu_log( log_point_s(35), 'mg_scatter_noopt', 'stop' ) |
---|
1408 | #endif |
---|
1409 | |
---|
1410 | END SUBROUTINE mg_scatter_noopt |
---|
1411 | |
---|
1412 | |
---|
1413 | !------------------------------------------------------------------------------! |
---|
1414 | ! Description: |
---|
1415 | ! ------------ |
---|
1416 | !> This is where the multigrid technique takes place. V- and W- Cycle are |
---|
1417 | !> implemented and steered by the parameter "gamma". Parameter "nue" determines |
---|
1418 | !> the convergence of the multigrid iterative solution. There are nue times |
---|
1419 | !> RB-GS iterations. It should be set to "1" or "2", considering the time effort |
---|
1420 | !> one would like to invest. Last choice shows a very good converging factor, |
---|
1421 | !> but leads to an increase in computing time. |
---|
1422 | !------------------------------------------------------------------------------! |
---|
1423 | RECURSIVE SUBROUTINE next_mg_level_noopt( f_mg, p_mg, p3, r ) |
---|
1424 | |
---|
1425 | USE control_parameters, & |
---|
1426 | ONLY: bc_lr_dirrad, bc_lr_raddir, bc_ns_dirrad, bc_ns_raddir, & |
---|
1427 | gamma_mg, grid_level_count, maximum_grid_level, & |
---|
1428 | mg_switch_to_pe0_level, mg_switch_to_pe0, ngsrb |
---|
1429 | |
---|
1430 | |
---|
1431 | USE indices, & |
---|
1432 | ONLY: mg_loc_ind, nxl, nxl_mg, nxr, nxr_mg, nys, nys_mg, nyn, & |
---|
1433 | nyn_mg, nzb, nzt, nzt_mg |
---|
1434 | |
---|
1435 | USE kinds |
---|
1436 | |
---|
1437 | USE pegrid |
---|
1438 | |
---|
1439 | IMPLICIT NONE |
---|
1440 | |
---|
1441 | INTEGER(iwp) :: i !< |
---|
1442 | INTEGER(iwp) :: j !< |
---|
1443 | INTEGER(iwp) :: k !< |
---|
1444 | INTEGER(iwp) :: nxl_mg_save !< |
---|
1445 | INTEGER(iwp) :: nxr_mg_save !< |
---|
1446 | INTEGER(iwp) :: nyn_mg_save !< |
---|
1447 | INTEGER(iwp) :: nys_mg_save !< |
---|
1448 | INTEGER(iwp) :: nzt_mg_save !< |
---|
1449 | |
---|
1450 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
1451 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
1452 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: f_mg !< |
---|
1453 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
1454 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
1455 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: p_mg !< |
---|
1456 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
1457 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
1458 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: p3 !< |
---|
1459 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
1460 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
1461 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: r !< |
---|
1462 | |
---|
1463 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level-1)+1, & |
---|
1464 | nys_mg(grid_level-1)-1:nyn_mg(grid_level-1)+1, & |
---|
1465 | nxl_mg(grid_level-1)-1:nxr_mg(grid_level-1)+1) :: f2 !< |
---|
1466 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level-1)+1, & |
---|
1467 | nys_mg(grid_level-1)-1:nyn_mg(grid_level-1)+1, & |
---|
1468 | nxl_mg(grid_level-1)-1:nxr_mg(grid_level-1)+1) :: p2 !< |
---|
1469 | |
---|
1470 | REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: f2_sub !< |
---|
1471 | REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: p2_sub !< |
---|
1472 | |
---|
1473 | ! |
---|
1474 | !-- Restriction to the coarsest grid |
---|
1475 | 10 IF ( grid_level == 1 ) THEN |
---|
1476 | |
---|
1477 | ! |
---|
1478 | !-- Solution on the coarsest grid. Double the number of Gauss-Seidel |
---|
1479 | !-- iterations in order to get a more accurate solution. |
---|
1480 | ngsrb = 2 * ngsrb |
---|
1481 | |
---|
1482 | CALL redblack_noopt( f_mg, p_mg ) |
---|
1483 | |
---|
1484 | ngsrb = ngsrb / 2 |
---|
1485 | |
---|
1486 | |
---|
1487 | ELSEIF ( grid_level /= 1 ) THEN |
---|
1488 | |
---|
1489 | grid_level_count(grid_level) = grid_level_count(grid_level) + 1 |
---|
1490 | |
---|
1491 | ! |
---|
1492 | !-- Solution on the actual grid level |
---|
1493 | CALL redblack_noopt( f_mg, p_mg ) |
---|
1494 | |
---|
1495 | ! |
---|
1496 | !-- Determination of the actual residual |
---|
1497 | CALL resid_noopt( f_mg, p_mg, r ) |
---|
1498 | |
---|
1499 | ! |
---|
1500 | !-- Restriction of the residual (finer grid values!) to the next coarser |
---|
1501 | !-- grid. Therefore, the grid level has to be decremented now. nxl..nzt have |
---|
1502 | !-- to be set to the coarse grid values, because these variables are needed |
---|
1503 | !-- for the exchange of ghost points in routine exchange_horiz |
---|
1504 | grid_level = grid_level - 1 |
---|
1505 | nxl = nxl_mg(grid_level) |
---|
1506 | nys = nys_mg(grid_level) |
---|
1507 | nxr = nxr_mg(grid_level) |
---|
1508 | nyn = nyn_mg(grid_level) |
---|
1509 | nzt = nzt_mg(grid_level) |
---|
1510 | |
---|
1511 | IF ( grid_level == mg_switch_to_pe0_level ) THEN |
---|
1512 | |
---|
1513 | ! |
---|
1514 | !-- From this level on, calculations are done on PE0 only. |
---|
1515 | !-- First, carry out restriction on the subdomain. |
---|
1516 | !-- Therefore, indices of the level have to be changed to subdomain values |
---|
1517 | !-- in between (otherwise, the restrict routine would expect |
---|
1518 | !-- the gathered array) |
---|
1519 | |
---|
1520 | nxl_mg_save = nxl_mg(grid_level) |
---|
1521 | nxr_mg_save = nxr_mg(grid_level) |
---|
1522 | nys_mg_save = nys_mg(grid_level) |
---|
1523 | nyn_mg_save = nyn_mg(grid_level) |
---|
1524 | nzt_mg_save = nzt_mg(grid_level) |
---|
1525 | nxl_mg(grid_level) = mg_loc_ind(1,myid) |
---|
1526 | nxr_mg(grid_level) = mg_loc_ind(2,myid) |
---|
1527 | nys_mg(grid_level) = mg_loc_ind(3,myid) |
---|
1528 | nyn_mg(grid_level) = mg_loc_ind(4,myid) |
---|
1529 | nzt_mg(grid_level) = mg_loc_ind(5,myid) |
---|
1530 | nxl = mg_loc_ind(1,myid) |
---|
1531 | nxr = mg_loc_ind(2,myid) |
---|
1532 | nys = mg_loc_ind(3,myid) |
---|
1533 | nyn = mg_loc_ind(4,myid) |
---|
1534 | nzt = mg_loc_ind(5,myid) |
---|
1535 | |
---|
1536 | ALLOCATE( f2_sub(nzb:nzt_mg(grid_level)+1, & |
---|
1537 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
1538 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) ) |
---|
1539 | |
---|
1540 | CALL restrict_noopt( f2_sub, r ) |
---|
1541 | |
---|
1542 | ! |
---|
1543 | !-- Restore the correct indices of this level |
---|
1544 | nxl_mg(grid_level) = nxl_mg_save |
---|
1545 | nxr_mg(grid_level) = nxr_mg_save |
---|
1546 | nys_mg(grid_level) = nys_mg_save |
---|
1547 | nyn_mg(grid_level) = nyn_mg_save |
---|
1548 | nzt_mg(grid_level) = nzt_mg_save |
---|
1549 | nxl = nxl_mg(grid_level) |
---|
1550 | nxr = nxr_mg(grid_level) |
---|
1551 | nys = nys_mg(grid_level) |
---|
1552 | nyn = nyn_mg(grid_level) |
---|
1553 | nzt = nzt_mg(grid_level) |
---|
1554 | ! |
---|
1555 | !-- Gather all arrays from the subdomains on PE0 |
---|
1556 | CALL mg_gather_noopt( f2, f2_sub ) |
---|
1557 | |
---|
1558 | ! |
---|
1559 | !-- Set switch for routine exchange_horiz, that no ghostpoint exchange |
---|
1560 | !-- has to be carried out from now on |
---|
1561 | mg_switch_to_pe0 = .TRUE. |
---|
1562 | |
---|
1563 | ! |
---|
1564 | !-- In case of non-cyclic lateral boundary conditions, both in- and |
---|
1565 | !-- outflow conditions have to be used on all PEs after the switch, |
---|
1566 | !-- because then they have the total domain. |
---|
1567 | IF ( bc_lr_dirrad ) THEN |
---|
1568 | bc_dirichlet_l = .TRUE. |
---|
1569 | bc_dirichlet_r = .FALSE. |
---|
1570 | bc_radiation_l = .FALSE. |
---|
1571 | bc_radiation_r = .TRUE. |
---|
1572 | ELSEIF ( bc_lr_raddir ) THEN |
---|
1573 | bc_dirichlet_l = .FALSE. |
---|
1574 | bc_dirichlet_r = .TRUE. |
---|
1575 | bc_radiation_l = .TRUE. |
---|
1576 | bc_radiation_r = .FALSE. |
---|
1577 | ELSEIF ( child_domain .OR. nesting_offline ) THEN |
---|
1578 | bc_dirichlet_l = .TRUE. |
---|
1579 | bc_dirichlet_r = .TRUE. |
---|
1580 | ENDIF |
---|
1581 | |
---|
1582 | IF ( bc_ns_dirrad ) THEN |
---|
1583 | bc_dirichlet_n = .TRUE. |
---|
1584 | bc_dirichlet_s = .FALSE. |
---|
1585 | bc_radiation_n = .FALSE. |
---|
1586 | bc_radiation_s = .TRUE. |
---|
1587 | ELSEIF ( bc_ns_raddir ) THEN |
---|
1588 | bc_dirichlet_n = .FALSE. |
---|
1589 | bc_dirichlet_s = .TRUE. |
---|
1590 | bc_radiation_n = .TRUE. |
---|
1591 | bc_radiation_s = .FALSE. |
---|
1592 | ELSEIF ( child_domain .OR. nesting_offline ) THEN |
---|
1593 | bc_dirichlet_s = .TRUE. |
---|
1594 | bc_dirichlet_n = .TRUE. |
---|
1595 | ENDIF |
---|
1596 | |
---|
1597 | DEALLOCATE( f2_sub ) |
---|
1598 | |
---|
1599 | ELSE |
---|
1600 | |
---|
1601 | CALL restrict_noopt( f2, r ) |
---|
1602 | |
---|
1603 | ENDIF |
---|
1604 | |
---|
1605 | p2 = 0.0_wp |
---|
1606 | |
---|
1607 | ! |
---|
1608 | !-- Repeat the same procedure till the coarsest grid is reached |
---|
1609 | CALL next_mg_level_noopt( f2, p2, p3, r ) |
---|
1610 | |
---|
1611 | ENDIF |
---|
1612 | |
---|
1613 | ! |
---|
1614 | !-- Now follows the prolongation |
---|
1615 | IF ( grid_level >= 2 ) THEN |
---|
1616 | |
---|
1617 | ! |
---|
1618 | !-- Prolongation of the new residual. The values are transferred |
---|
1619 | !-- from the coarse to the next finer grid. |
---|
1620 | IF ( grid_level == mg_switch_to_pe0_level+1 ) THEN |
---|
1621 | |
---|
1622 | #if defined( __parallel ) |
---|
1623 | ! |
---|
1624 | !-- At this level, the new residual first has to be scattered from |
---|
1625 | !-- PE0 to the other PEs |
---|
1626 | ALLOCATE( p2_sub(nzb:mg_loc_ind(5,myid)+1, & |
---|
1627 | mg_loc_ind(3,myid)-1:mg_loc_ind(4,myid)+1, & |
---|
1628 | mg_loc_ind(1,myid)-1:mg_loc_ind(2,myid)+1) ) |
---|
1629 | |
---|
1630 | CALL mg_scatter_noopt( p2, p2_sub ) |
---|
1631 | |
---|
1632 | ! |
---|
1633 | !-- Therefore, indices of the previous level have to be changed to |
---|
1634 | !-- subdomain values in between (otherwise, the prolong routine would |
---|
1635 | !-- expect the gathered array) |
---|
1636 | nxl_mg_save = nxl_mg(grid_level-1) |
---|
1637 | nxr_mg_save = nxr_mg(grid_level-1) |
---|
1638 | nys_mg_save = nys_mg(grid_level-1) |
---|
1639 | nyn_mg_save = nyn_mg(grid_level-1) |
---|
1640 | nzt_mg_save = nzt_mg(grid_level-1) |
---|
1641 | nxl_mg(grid_level-1) = mg_loc_ind(1,myid) |
---|
1642 | nxr_mg(grid_level-1) = mg_loc_ind(2,myid) |
---|
1643 | nys_mg(grid_level-1) = mg_loc_ind(3,myid) |
---|
1644 | nyn_mg(grid_level-1) = mg_loc_ind(4,myid) |
---|
1645 | nzt_mg(grid_level-1) = mg_loc_ind(5,myid) |
---|
1646 | |
---|
1647 | ! |
---|
1648 | !-- Set switch for routine exchange_horiz, that ghostpoint exchange |
---|
1649 | !-- has to be carried again out from now on |
---|
1650 | mg_switch_to_pe0 = .FALSE. |
---|
1651 | |
---|
1652 | ! |
---|
1653 | !-- For non-cyclic lateral boundary conditions and in case of nesting, |
---|
1654 | !-- restore the in-/outflow conditions. |
---|
1655 | bc_dirichlet_l = .FALSE.; bc_dirichlet_r = .FALSE. |
---|
1656 | bc_dirichlet_n = .FALSE.; bc_dirichlet_s = .FALSE. |
---|
1657 | bc_radiation_l = .FALSE.; bc_radiation_r = .FALSE. |
---|
1658 | bc_radiation_n = .FALSE.; bc_radiation_s = .FALSE. |
---|
1659 | |
---|
1660 | IF ( pleft == MPI_PROC_NULL ) THEN |
---|
1661 | IF ( bc_lr_dirrad .OR. child_domain .OR. nesting_offline ) & |
---|
1662 | THEN |
---|
1663 | bc_dirichlet_l = .TRUE. |
---|
1664 | ELSEIF ( bc_lr_raddir ) THEN |
---|
1665 | bc_radiation_l = .TRUE. |
---|
1666 | ENDIF |
---|
1667 | ENDIF |
---|
1668 | |
---|
1669 | IF ( pright == MPI_PROC_NULL ) THEN |
---|
1670 | IF ( bc_lr_dirrad ) THEN |
---|
1671 | bc_radiation_r = .TRUE. |
---|
1672 | ELSEIF ( bc_lr_raddir .OR. child_domain .OR. & |
---|
1673 | nesting_offline ) THEN |
---|
1674 | bc_dirichlet_r = .TRUE. |
---|
1675 | ENDIF |
---|
1676 | ENDIF |
---|
1677 | |
---|
1678 | IF ( psouth == MPI_PROC_NULL ) THEN |
---|
1679 | IF ( bc_ns_dirrad ) THEN |
---|
1680 | bc_radiation_s = .TRUE. |
---|
1681 | ELSEIF ( bc_ns_raddir .OR. child_domain .OR. & |
---|
1682 | nesting_offline ) THEN |
---|
1683 | bc_dirichlet_s = .TRUE. |
---|
1684 | ENDIF |
---|
1685 | ENDIF |
---|
1686 | |
---|
1687 | IF ( pnorth == MPI_PROC_NULL ) THEN |
---|
1688 | IF ( bc_ns_dirrad .OR. child_domain .OR. nesting_offline ) & |
---|
1689 | THEN |
---|
1690 | bc_dirichlet_n = .TRUE. |
---|
1691 | ELSEIF ( bc_ns_raddir ) THEN |
---|
1692 | bc_radiation_n = .TRUE. |
---|
1693 | ENDIF |
---|
1694 | ENDIF |
---|
1695 | |
---|
1696 | CALL prolong_noopt( p2_sub, p3 ) |
---|
1697 | |
---|
1698 | ! |
---|
1699 | !-- Restore the correct indices of the previous level |
---|
1700 | nxl_mg(grid_level-1) = nxl_mg_save |
---|
1701 | nxr_mg(grid_level-1) = nxr_mg_save |
---|
1702 | nys_mg(grid_level-1) = nys_mg_save |
---|
1703 | nyn_mg(grid_level-1) = nyn_mg_save |
---|
1704 | nzt_mg(grid_level-1) = nzt_mg_save |
---|
1705 | |
---|
1706 | DEALLOCATE( p2_sub ) |
---|
1707 | #endif |
---|
1708 | |
---|
1709 | ELSE |
---|
1710 | |
---|
1711 | CALL prolong_noopt( p2, p3 ) |
---|
1712 | |
---|
1713 | ENDIF |
---|
1714 | |
---|
1715 | ! |
---|
1716 | !-- Computation of the new pressure correction. Therefore, |
---|
1717 | !-- values from prior grids are added up automatically stage by stage. |
---|
1718 | DO i = nxl_mg(grid_level)-1, nxr_mg(grid_level)+1 |
---|
1719 | DO j = nys_mg(grid_level)-1, nyn_mg(grid_level)+1 |
---|
1720 | DO k = nzb, nzt_mg(grid_level)+1 |
---|
1721 | p_mg(k,j,i) = p_mg(k,j,i) + p3(k,j,i) |
---|
1722 | ENDDO |
---|
1723 | ENDDO |
---|
1724 | ENDDO |
---|
1725 | |
---|
1726 | ! |
---|
1727 | !-- Relaxation of the new solution |
---|
1728 | CALL redblack_noopt( f_mg, p_mg ) |
---|
1729 | |
---|
1730 | ENDIF |
---|
1731 | |
---|
1732 | |
---|
1733 | ! |
---|
1734 | !-- The following few lines serve the steering of the multigrid scheme |
---|
1735 | IF ( grid_level == maximum_grid_level ) THEN |
---|
1736 | |
---|
1737 | GOTO 20 |
---|
1738 | |
---|
1739 | ELSEIF ( grid_level /= maximum_grid_level .AND. grid_level /= 1 .AND. & |
---|
1740 | grid_level_count(grid_level) /= gamma_mg ) THEN |
---|
1741 | |
---|
1742 | GOTO 10 |
---|
1743 | |
---|
1744 | ENDIF |
---|
1745 | |
---|
1746 | ! |
---|
1747 | !-- Reset counter for the next call of poismg_noopt |
---|
1748 | grid_level_count(grid_level) = 0 |
---|
1749 | |
---|
1750 | ! |
---|
1751 | !-- Continue with the next finer level. nxl..nzt have to be |
---|
1752 | !-- set to the finer grid values, because these variables are needed for the |
---|
1753 | !-- exchange of ghost points in routine exchange_horiz |
---|
1754 | grid_level = grid_level + 1 |
---|
1755 | nxl = nxl_mg(grid_level) |
---|
1756 | nxr = nxr_mg(grid_level) |
---|
1757 | nys = nys_mg(grid_level) |
---|
1758 | nyn = nyn_mg(grid_level) |
---|
1759 | nzt = nzt_mg(grid_level) |
---|
1760 | |
---|
1761 | 20 CONTINUE |
---|
1762 | |
---|
1763 | END SUBROUTINE next_mg_level_noopt |
---|
1764 | |
---|
1765 | |
---|
1766 | |
---|
1767 | SUBROUTINE poismg_noopt_init |
---|
1768 | |
---|
1769 | USE control_parameters, & |
---|
1770 | ONLY: bc_lr_cyc, bc_ns_cyc, masking_method, maximum_grid_level |
---|
1771 | |
---|
1772 | USE indices, & |
---|
1773 | ONLY: flags, nxl_mg, nxr_mg, nyn_mg, nys_mg, nzb, nzt_mg, & |
---|
1774 | wall_flags_0, wall_flags_1, & |
---|
1775 | wall_flags_10, wall_flags_2, wall_flags_3, wall_flags_4, & |
---|
1776 | wall_flags_5, wall_flags_6, wall_flags_7, wall_flags_8, & |
---|
1777 | wall_flags_9 |
---|
1778 | |
---|
1779 | IMPLICIT NONE |
---|
1780 | |
---|
1781 | INTEGER(iwp) :: i !< index variable along x |
---|
1782 | INTEGER(iwp) :: inc !< incremental parameter for coarsening grid level |
---|
1783 | INTEGER(iwp) :: j !< index variable along y |
---|
1784 | INTEGER(iwp) :: k !< index variable along z |
---|
1785 | INTEGER(iwp) :: l !< loop variable indication current grid level |
---|
1786 | INTEGER(iwp) :: nxl_l !< index of left PE boundary for multigrid level |
---|
1787 | INTEGER(iwp) :: nxr_l !< index of right PE boundary for multigrid level |
---|
1788 | INTEGER(iwp) :: nyn_l !< index of north PE boundary for multigrid level |
---|
1789 | INTEGER(iwp) :: nys_l !< index of south PE boundary for multigrid level |
---|
1790 | INTEGER(iwp) :: nzt_l !< index of top PE boundary for multigrid level |
---|
1791 | |
---|
1792 | INTEGER(iwp), DIMENSION(:,:,:), ALLOCATABLE :: topo_tmp |
---|
1793 | ! |
---|
1794 | !-- Gridpoint increment of the current level. |
---|
1795 | inc = 1 |
---|
1796 | DO l = maximum_grid_level, 1 , -1 |
---|
1797 | ! |
---|
1798 | !-- Set grid_level as it is required for exchange_horiz_2d_int |
---|
1799 | grid_level = l |
---|
1800 | |
---|
1801 | nxl_l = nxl_mg(l) |
---|
1802 | nxr_l = nxr_mg(l) |
---|
1803 | nys_l = nys_mg(l) |
---|
1804 | nyn_l = nyn_mg(l) |
---|
1805 | nzt_l = nzt_mg(l) |
---|
1806 | ! |
---|
1807 | !-- Assign the flag level to be calculated |
---|
1808 | SELECT CASE ( l ) |
---|
1809 | CASE ( 1 ) |
---|
1810 | flags => wall_flags_1 |
---|
1811 | CASE ( 2 ) |
---|
1812 | flags => wall_flags_2 |
---|
1813 | CASE ( 3 ) |
---|
1814 | flags => wall_flags_3 |
---|
1815 | CASE ( 4 ) |
---|
1816 | flags => wall_flags_4 |
---|
1817 | CASE ( 5 ) |
---|
1818 | flags => wall_flags_5 |
---|
1819 | CASE ( 6 ) |
---|
1820 | flags => wall_flags_6 |
---|
1821 | CASE ( 7 ) |
---|
1822 | flags => wall_flags_7 |
---|
1823 | CASE ( 8 ) |
---|
1824 | flags => wall_flags_8 |
---|
1825 | CASE ( 9 ) |
---|
1826 | flags => wall_flags_9 |
---|
1827 | CASE ( 10 ) |
---|
1828 | flags => wall_flags_10 |
---|
1829 | END SELECT |
---|
1830 | |
---|
1831 | ! |
---|
1832 | !-- Depending on the grid level, set the respective bits in case of |
---|
1833 | !-- neighbouring walls |
---|
1834 | !-- Bit 0: wall to the bottom |
---|
1835 | !-- Bit 1: wall to the top (not realized in remaining PALM code so far) |
---|
1836 | !-- Bit 2: wall to the south |
---|
1837 | !-- Bit 3: wall to the north |
---|
1838 | !-- Bit 4: wall to the left |
---|
1839 | !-- Bit 5: wall to the right |
---|
1840 | !-- Bit 6: inside building |
---|
1841 | |
---|
1842 | flags = 0 |
---|
1843 | ! |
---|
1844 | !-- In case of masking method, flags are not set and multigrid method |
---|
1845 | !-- works like FFT-solver |
---|
1846 | IF ( .NOT. masking_method ) THEN |
---|
1847 | |
---|
1848 | ! |
---|
1849 | !-- Allocate temporary array for topography heights on coarser grid |
---|
1850 | !-- level. Please note, 2 ghoist points are required, in order to |
---|
1851 | !-- calculate flags() on the interior ghost point. |
---|
1852 | ALLOCATE( topo_tmp(nzb:nzt_l+1,nys_l-1:nyn_l+1,nxl_l-1:nxr_l+1) ) |
---|
1853 | topo_tmp = 0 |
---|
1854 | |
---|
1855 | DO i = nxl_l, nxr_l |
---|
1856 | DO j = nys_l, nyn_l |
---|
1857 | DO k = nzb, nzt_l |
---|
1858 | topo_tmp(k,j,i) = wall_flags_0(k*inc,j*inc,i*inc) |
---|
1859 | ENDDO |
---|
1860 | ENDDO |
---|
1861 | ENDDO |
---|
1862 | topo_tmp(nzt_l+1,:,:) = topo_tmp(nzt_l,:,:) |
---|
1863 | ! |
---|
1864 | !-- Exchange ghost points on respective multigrid level. 2 ghost points |
---|
1865 | !-- are required, in order to calculate flags on |
---|
1866 | !-- nys_l-1 / nyn_l+1 / nxl_l-1 / nxr_l+1. |
---|
1867 | CALL exchange_horiz_int( topo_tmp, nys_l, nyn_l, nxl_l, nxr_l, nzt_l, 1 ) |
---|
1868 | ! |
---|
1869 | !-- Set non-cyclic boundary conditions on respective multigrid level |
---|
1870 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
1871 | IF ( bc_dirichlet_s .OR. bc_radiation_s ) THEN |
---|
1872 | ! topo_tmp(:,-2,:) = topo_tmp(:,0,:) |
---|
1873 | topo_tmp(:,-1,:) = topo_tmp(:,0,:) |
---|
1874 | ENDIF |
---|
1875 | IF ( bc_dirichlet_n .OR. bc_radiation_n ) THEN |
---|
1876 | ! topo_tmp(:,nyn_l+2,:) = topo_tmp(:,nyn_l,:) |
---|
1877 | topo_tmp(:,nyn_l+1,:) = topo_tmp(:,nyn_l,:) |
---|
1878 | ENDIF |
---|
1879 | ENDIF |
---|
1880 | IF ( .NOT. bc_lr_cyc ) THEN |
---|
1881 | IF ( bc_dirichlet_l .OR. bc_radiation_l ) THEN |
---|
1882 | ! topo_tmp(:,:,-2) = topo_tmp(:,:,0) |
---|
1883 | topo_tmp(:,:,-1) = topo_tmp(:,:,0) |
---|
1884 | ENDIF |
---|
1885 | IF ( bc_dirichlet_r .OR. bc_radiation_r ) THEN |
---|
1886 | ! topo_tmp(:,:,nxr_l+2) = topo_tmp(:,:,nxr_l) |
---|
1887 | topo_tmp(:,:,nxr_l+1) = topo_tmp(:,:,nxr_l) |
---|
1888 | ENDIF |
---|
1889 | ENDIF |
---|
1890 | |
---|
1891 | DO i = nxl_l, nxr_l |
---|
1892 | DO j = nys_l, nyn_l |
---|
1893 | DO k = nzb, nzt_l |
---|
1894 | ! |
---|
1895 | !-- Inside/outside building (inside building does not need |
---|
1896 | !-- further tests for walls) |
---|
1897 | IF ( .NOT. BTEST( topo_tmp(k,j,i), 0 ) ) THEN |
---|
1898 | |
---|
1899 | flags(k,j,i) = IBSET( flags(k,j,i), 6 ) |
---|
1900 | |
---|
1901 | ELSE |
---|
1902 | ! |
---|
1903 | !-- Bottom wall |
---|
1904 | IF ( .NOT. BTEST( topo_tmp(k-1,j,i), 0 ) ) THEN |
---|
1905 | flags(k,j,i) = IBSET( flags(k,j,i), 0 ) |
---|
1906 | ENDIF |
---|
1907 | ! |
---|
1908 | !-- South wall |
---|
1909 | IF ( .NOT. BTEST( topo_tmp(k,j-1,i), 0 ) ) THEN |
---|
1910 | flags(k,j,i) = IBSET( flags(k,j,i), 2 ) |
---|
1911 | ENDIF |
---|
1912 | ! |
---|
1913 | !-- North wall |
---|
1914 | IF ( .NOT. BTEST( topo_tmp(k,j+1,i), 0 ) ) THEN |
---|
1915 | flags(k,j,i) = IBSET( flags(k,j,i), 3 ) |
---|
1916 | ENDIF |
---|
1917 | ! |
---|
1918 | !-- Left wall |
---|
1919 | IF ( .NOT. BTEST( topo_tmp(k,j,i-1), 0 ) ) THEN |
---|
1920 | flags(k,j,i) = IBSET( flags(k,j,i), 4 ) |
---|
1921 | ENDIF |
---|
1922 | ! |
---|
1923 | !-- Right wall |
---|
1924 | IF ( .NOT. BTEST( topo_tmp(k,j,i+1), 0 ) ) THEN |
---|
1925 | flags(k,j,i) = IBSET( flags(k,j,i), 5 ) |
---|
1926 | ENDIF |
---|
1927 | ! |
---|
1928 | !-- Top wall |
---|
1929 | IF ( .NOT. BTEST( topo_tmp(k+1,j,i), 0 ) ) THEN |
---|
1930 | flags(k,j,i) = IBSET( flags(k,j,i), 7 ) |
---|
1931 | ENDIF |
---|
1932 | |
---|
1933 | ENDIF |
---|
1934 | |
---|
1935 | ENDDO |
---|
1936 | ENDDO |
---|
1937 | ENDDO |
---|
1938 | flags(nzt_l+1,:,:) = flags(nzt_l,:,:) |
---|
1939 | |
---|
1940 | CALL exchange_horiz_int( flags, nys_l, nyn_l, nxl_l, nxr_l, nzt_l, 1 ) |
---|
1941 | |
---|
1942 | DEALLOCATE( topo_tmp ) |
---|
1943 | |
---|
1944 | ENDIF |
---|
1945 | |
---|
1946 | inc = inc * 2 |
---|
1947 | |
---|
1948 | ENDDO |
---|
1949 | ! |
---|
1950 | !-- Reset grid_level to "normal" grid |
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1951 | grid_level = 0 |
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1952 | |
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1953 | END SUBROUTINE poismg_noopt_init |
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1954 | |
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1955 | END MODULE poismg_noopt_mod |
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