| 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 1997-2018 Leibniz Universitaet Hannover |
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| 18 | !------------------------------------------------------------------------------! |
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| 19 | ! |
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| 20 | ! Current revisions: |
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| 21 | ! ----------------- |
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| 22 | ! |
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| 23 | ! |
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| 24 | ! Former revisions: |
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| 25 | ! ----------------- |
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| 26 | ! $Id: poismg_noopt_mod.f90 2718 2018-01-02 08:49:38Z thiele $ |
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| 27 | ! Corrected "Former revisions" section |
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| 28 | ! |
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| 29 | ! 2696 2017-12-14 17:12:51Z kanani |
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| 30 | ! - Change in file header (GPL part) |
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| 31 | ! - Rename file into poismg_noopt_mod |
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| 32 | ! - Modularize poismg_noopt - initialization of masking flags moved from |
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| 33 | ! init_grid |
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| 34 | ! - Masking of downward-facing walls walls |
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| 35 | ! - Large-scale forcing implemented (MS) |
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| 36 | ! |
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| 37 | ! 2591 2017-10-30 08:07:25Z maronga |
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| 38 | ! |
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| 39 | ! 2586 2017-10-27 13:03:50Z kanani |
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| 40 | ! |
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| 41 | ! 2232 2017-05-30 17:47:52Z suehring |
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| 42 | ! Bugfixes OpenMP |
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| 43 | ! |
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| 44 | ! 2037 2016-10-26 11:15:40Z knoop |
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| 45 | ! Anelastic approximation implemented |
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| 46 | ! |
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| 47 | ! 2021 2016-10-07 14:08:57Z suehring |
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| 48 | ! Bugfix: restore nest_bound_(l/r/s/n) in case of mg_switch_to_pe0 |
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| 49 | ! |
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| 50 | ! 2000 2016-08-20 18:09:15Z knoop |
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| 51 | ! Forced header and separation lines into 80 columns |
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| 52 | ! |
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| 53 | ! 1934 2016-06-13 09:46:57Z hellstea |
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| 54 | ! Rename subroutines and cpu-measure log points to indicate _noopt version |
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| 55 | ! |
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| 56 | ! 1762 2016-02-25 12:31:13Z hellstea |
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| 57 | ! Introduction of nested domain feature |
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| 58 | ! |
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| 59 | ! 1682 2015-10-07 23:56:08Z knoop |
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| 60 | ! Code annotations made doxygen readable |
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| 61 | ! |
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| 62 | ! 1353 2014-04-08 15:21:23Z heinze |
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| 63 | ! REAL constants provided with KIND-attribute |
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| 64 | ! |
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| 65 | ! 1322 2014-03-20 16:38:49Z raasch |
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| 66 | ! REAL constants defined as wp-kind |
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| 67 | ! |
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| 68 | ! 1320 2014-03-20 08:40:49Z raasch |
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| 69 | ! ONLY-attribute added to USE-statements, |
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| 70 | ! kind-parameters added to all INTEGER and REAL declaration statements, |
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| 71 | ! kinds are defined in new module kinds, |
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| 72 | ! old module precision_kind is removed, |
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| 73 | ! revision history before 2012 removed, |
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| 74 | ! comment fields (!:) to be used for variable explanations added to |
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| 75 | ! all variable declaration statements |
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| 76 | ! |
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| 77 | ! 1318 2014-03-17 13:35:16Z raasch |
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| 78 | ! module interfaces removed |
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| 79 | ! |
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| 80 | ! 1159 2013-05-21 11:58:22Z fricke |
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| 81 | ! bc_lr/ns_dirneu/neudir removed |
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| 82 | ! |
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| 83 | ! 1092 2013-02-02 11:24:22Z raasch |
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| 84 | ! unused variables removed |
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| 85 | ! |
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| 86 | ! 1056 2012-11-16 15:28:04Z raasch |
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| 87 | ! Bugfix: all ghost points have to be used for allocating p3 |
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| 88 | ! arrays p2, f2, and f2_l changed from allocatable to automatic |
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| 89 | ! |
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| 90 | ! 1036 2012-10-22 13:43:42Z raasch |
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| 91 | ! code put under GPL (PALM 3.9) |
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| 92 | ! |
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| 93 | ! 996 2012-09-07 10:41:47Z raasch |
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| 94 | ! little reformatting |
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| 95 | ! |
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| 96 | ! 978 2012-08-09 08:28:32Z fricke |
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| 97 | ! bc_lr/ns_dirneu/neudir added |
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| 98 | ! |
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| 99 | ! 880 2012-04-13 06:28:59Z raasch |
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| 100 | ! Bugfix: preprocessor statements for parallel execution added |
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| 101 | ! |
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| 102 | ! 778 2011-11-07 14:18:25Z fricke |
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| 103 | ! Allocation of p3 changes when multigrid is used and the collected field on PE0 |
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| 104 | ! has more grid points than the subdomain of an PE. |
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| 105 | ! |
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| 106 | ! 707 2011-03-29 11:39:40Z raasch |
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| 107 | ! p_loc is used instead of p in the main routine (poismg). |
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| 108 | ! On coarse grid levels, gathered data are identically processed on all PEs |
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| 109 | ! (before, on PE0 only), so that the subsequent scattering of data is not |
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| 110 | ! neccessary any more. |
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| 111 | ! bc_lr/ns replaced by bc_lr/ns_cyc/dirrad/raddir |
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| 112 | ! Bugfix: bottom (nzb) and top (nzt+1) boundary conditions set in routines |
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| 113 | ! resid and restrict. They were missed before which may have led to |
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| 114 | ! unpredictable results. |
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| 115 | ! |
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| 116 | ! 667 2010-12-23 12:06:00Z suehring/gryschka |
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| 117 | ! Calls of exchange_horiz are modified. |
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| 118 | ! |
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| 119 | ! 622 2010-12-10 08:08:13Z raasch |
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| 120 | ! optional barriers included in order to speed up collective operations |
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| 121 | ! |
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| 122 | ! 257 2009-03-11 15:17:42Z heinze |
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| 123 | ! Output of messages replaced by message handling routine. |
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| 124 | ! |
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| 125 | ! 181 2008-07-30 07:07:47Z raasch |
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| 126 | ! Bugfix: grid_level+1 has to be used in restrict for flags-array |
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| 127 | ! |
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| 128 | ! 114 2007-10-10 00:03:15Z raasch |
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| 129 | ! Boundary conditions at walls are implicitly set using flag arrays. Only |
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| 130 | ! Neumann BC is allowed. Upper walls are still not realized. |
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| 131 | ! Bottom and top BCs for array f_mg in restrict removed because boundary |
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| 132 | ! values are not needed (right hand side of SOR iteration). |
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| 133 | ! |
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| 134 | ! 75 2007-03-22 09:54:05Z raasch |
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| 135 | ! 2nd+3rd argument removed from exchange horiz |
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| 136 | ! |
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| 137 | ! RCS Log replace by Id keyword, revision history cleaned up |
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| 138 | ! |
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| 139 | ! Revision 1.6 2005/03/26 20:55:54 raasch |
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| 140 | ! Implementation of non-cyclic (Neumann) horizontal boundary conditions, |
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| 141 | ! routine prolong simplified (one call of exchange_horiz spared) |
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| 142 | ! |
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| 143 | ! Revision 1.1 2001/07/20 13:10:51 raasch |
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| 144 | ! Initial revision |
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| 145 | ! |
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| 146 | ! |
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| 147 | ! Description: |
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| 148 | ! ------------ |
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| 149 | !> Solves the Poisson equation for the perturbation pressure with a multigrid |
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| 150 | !> V- or W-Cycle scheme. |
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| 151 | !> |
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| 152 | !> This multigrid method was originally developed for PALM by Joerg Uhlenbrock, |
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| 153 | !> September 2000 - July 2001. |
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| 154 | !> |
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| 155 | !> @attention Loop unrolling and cache optimization in SOR-Red/Black method |
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| 156 | !> still does not give the expected speedup! |
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| 157 | !> |
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| 158 | !> @todo Further work required. |
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| 159 | !> @todo Formatting adjustments required (indention after modularization) |
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| 160 | !------------------------------------------------------------------------------! |
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| 161 | MODULE poismg_noopt_mod |
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| 162 | |
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| 163 | USE control_parameters, & |
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| 164 | ONLY: grid_level, force_bound_l, force_bound_n, force_bound_r, & |
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| 165 | force_bound_s, forcing, inflow_l, inflow_n, inflow_r, inflow_s, & |
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| 166 | nest_bound_l, nest_bound_n, nest_bound_r, nest_bound_s, & |
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| 167 | outflow_l, outflow_n, outflow_r, outflow_s |
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| 168 | |
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| 169 | USE cpulog, & |
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| 170 | ONLY: cpu_log, log_point_s |
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| 171 | |
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| 172 | USE kinds |
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| 173 | |
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| 174 | USE pegrid |
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| 175 | |
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| 176 | PRIVATE |
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| 177 | |
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| 178 | INTERFACE poismg_noopt |
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| 179 | MODULE PROCEDURE poismg_noopt |
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| 180 | END INTERFACE poismg_noopt |
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| 181 | |
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| 182 | INTERFACE poismg_noopt_init |
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| 183 | MODULE PROCEDURE poismg_noopt_init |
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| 184 | END INTERFACE poismg_noopt_init |
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| 185 | |
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| 186 | PUBLIC poismg_noopt, poismg_noopt_init |
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| 187 | |
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| 188 | CONTAINS |
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| 189 | |
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| 190 | SUBROUTINE poismg_noopt( r ) |
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| 191 | |
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| 192 | |
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| 193 | USE arrays_3d, & |
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| 194 | ONLY: d, p_loc |
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| 195 | |
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| 196 | USE control_parameters, & |
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| 197 | ONLY: gathered_size, grid_level_count, & |
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| 198 | maximum_grid_level, message_string, mgcycles, mg_cycles, & |
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| 199 | mg_switch_to_pe0_level, residual_limit, subdomain_size |
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| 200 | |
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| 201 | USE cpulog, & |
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| 202 | ONLY: cpu_log, log_point_s |
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| 203 | |
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| 204 | USE indices, & |
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| 205 | ONLY: nxl, nxlg, nxl_mg, nxr, nxrg, nxr_mg, nys, nysg, nys_mg, nyn,& |
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| 206 | nyng, nyn_mg, nzb, nzt, nzt_mg |
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| 207 | |
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| 208 | USE kinds |
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| 209 | |
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| 210 | USE pegrid |
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| 211 | |
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| 212 | IMPLICIT NONE |
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| 213 | |
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| 214 | REAL(wp) :: maxerror !< |
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| 215 | REAL(wp) :: maximum_mgcycles !< |
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| 216 | REAL(wp) :: residual_norm !< |
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| 217 | |
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| 218 | REAL(wp), DIMENSION(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) :: r !< |
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| 219 | |
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| 220 | REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: p3 !< |
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| 221 | |
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| 222 | |
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| 223 | CALL cpu_log( log_point_s(29), 'poismg_noopt', 'start' ) |
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| 224 | ! |
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| 225 | !-- Initialize arrays and variables used in this subroutine |
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| 226 | |
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| 227 | !-- If the number of grid points of the gathered grid, which is collected |
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| 228 | !-- on PE0, is larger than the number of grid points of an PE, than array |
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| 229 | !-- p3 will be enlarged. |
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| 230 | IF ( gathered_size > subdomain_size ) THEN |
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| 231 | ALLOCATE( p3(nzb:nzt_mg(mg_switch_to_pe0_level)+1,nys_mg( & |
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| 232 | mg_switch_to_pe0_level)-1:nyn_mg(mg_switch_to_pe0_level)+1,& |
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| 233 | nxl_mg(mg_switch_to_pe0_level)-1:nxr_mg( & |
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| 234 | mg_switch_to_pe0_level)+1) ) |
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| 235 | ELSE |
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| 236 | ALLOCATE ( p3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) ) |
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| 237 | ENDIF |
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| 238 | |
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| 239 | p3 = 0.0_wp |
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| 240 | |
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| 241 | ! |
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| 242 | !-- Ghost boundaries have to be added to divergence array. |
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| 243 | !-- Exchange routine needs to know the grid level! |
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| 244 | grid_level = maximum_grid_level |
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| 245 | CALL exchange_horiz( d, 1) |
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| 246 | d(nzb,:,:) = d(nzb+1,:,:) |
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| 247 | |
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| 248 | ! |
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| 249 | !-- Initiation of the multigrid scheme. Does n cycles until the |
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| 250 | !-- residual is smaller than the given limit. The accuracy of the solution |
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| 251 | !-- of the poisson equation will increase with the number of cycles. |
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| 252 | !-- If the number of cycles is preset by the user, this number will be |
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| 253 | !-- carried out regardless of the accuracy. |
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| 254 | grid_level_count = 0 |
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| 255 | mgcycles = 0 |
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| 256 | IF ( mg_cycles == -1 ) THEN |
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| 257 | maximum_mgcycles = 0 |
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| 258 | residual_norm = 1.0_wp |
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| 259 | ELSE |
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| 260 | maximum_mgcycles = mg_cycles |
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| 261 | residual_norm = 0.0_wp |
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| 262 | ENDIF |
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| 263 | |
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| 264 | DO WHILE ( residual_norm > residual_limit .OR. & |
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| 265 | mgcycles < maximum_mgcycles ) |
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| 266 | |
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| 267 | CALL next_mg_level_noopt( d, p_loc, p3, r) |
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| 268 | |
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| 269 | ! |
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| 270 | !-- Calculate the residual if the user has not preset the number of |
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| 271 | !-- cycles to be performed |
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| 272 | IF ( maximum_mgcycles == 0 ) THEN |
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| 273 | CALL resid_noopt( d, p_loc, r ) |
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| 274 | maxerror = SUM( r(nzb+1:nzt,nys:nyn,nxl:nxr)**2 ) |
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| 275 | |
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| 276 | #if defined( __parallel ) |
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| 277 | IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr ) |
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| 278 | CALL MPI_ALLREDUCE( maxerror, residual_norm, 1, MPI_REAL, & |
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| 279 | MPI_SUM, comm2d, ierr) |
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| 280 | #else |
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| 281 | residual_norm = maxerror |
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| 282 | #endif |
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| 283 | residual_norm = SQRT( residual_norm ) |
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| 284 | ENDIF |
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| 285 | |
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| 286 | mgcycles = mgcycles + 1 |
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| 287 | |
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| 288 | ! |
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| 289 | !-- If the user has not limited the number of cycles, stop the run in case |
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| 290 | !-- of insufficient convergence |
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| 291 | IF ( mgcycles > 1000 .AND. mg_cycles == -1 ) THEN |
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| 292 | message_string = 'no sufficient convergence within 1000 cycles' |
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| 293 | CALL message( 'poismg_noopt', 'PA0283', 1, 2, 0, 6, 0 ) |
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| 294 | ENDIF |
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| 295 | |
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| 296 | ENDDO |
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| 297 | |
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| 298 | DEALLOCATE( p3 ) |
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| 299 | |
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| 300 | ! |
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| 301 | !-- Unset the grid level. Variable is used to determine the MPI datatypes for |
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| 302 | !-- ghost point exchange |
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| 303 | grid_level = 0 |
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| 304 | |
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| 305 | CALL cpu_log( log_point_s(29), 'poismg_noopt', 'stop' ) |
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| 306 | |
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| 307 | END SUBROUTINE poismg_noopt |
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| 308 | |
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| 309 | |
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| 310 | !------------------------------------------------------------------------------! |
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| 311 | ! Description: |
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| 312 | ! ------------ |
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| 313 | !> Computes the residual of the perturbation pressure. |
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| 314 | !------------------------------------------------------------------------------! |
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| 315 | SUBROUTINE resid_noopt( f_mg, p_mg, r ) |
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| 316 | |
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| 317 | |
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| 318 | USE arrays_3d, & |
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| 319 | ONLY: f1_mg, f2_mg, f3_mg, rho_air_mg |
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| 320 | |
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| 321 | USE control_parameters, & |
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| 322 | ONLY: bc_lr_cyc, bc_ns_cyc, ibc_p_b, ibc_p_t |
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| 323 | |
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| 324 | USE grid_variables, & |
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| 325 | ONLY: ddx2_mg, ddy2_mg |
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| 326 | |
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| 327 | USE indices, & |
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| 328 | ONLY: flags, wall_flags_1, wall_flags_2, wall_flags_3, wall_flags_4,& |
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| 329 | wall_flags_5, wall_flags_6, wall_flags_7, wall_flags_8, & |
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| 330 | wall_flags_9, wall_flags_10, nxl_mg, nxr_mg, nys_mg, nyn_mg, & |
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| 331 | nzb, nzt_mg |
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| 332 | |
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| 333 | USE kinds |
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| 334 | |
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| 335 | IMPLICIT NONE |
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| 336 | |
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| 337 | INTEGER(iwp) :: i |
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| 338 | INTEGER(iwp) :: j |
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| 339 | INTEGER(iwp) :: k |
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| 340 | INTEGER(iwp) :: l |
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| 341 | |
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| 342 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
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| 343 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
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| 344 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: f_mg !< |
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| 345 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
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| 346 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
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| 347 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: p_mg !< |
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| 348 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
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| 349 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
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| 350 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: r !< |
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| 351 | |
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| 352 | ! |
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| 353 | !-- Calculate the residual |
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| 354 | l = grid_level |
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| 355 | |
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| 356 | ! |
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| 357 | !-- Choose flag array of this level |
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| 358 | SELECT CASE ( l ) |
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| 359 | CASE ( 1 ) |
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| 360 | flags => wall_flags_1 |
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| 361 | CASE ( 2 ) |
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| 362 | flags => wall_flags_2 |
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| 363 | CASE ( 3 ) |
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| 364 | flags => wall_flags_3 |
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| 365 | CASE ( 4 ) |
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| 366 | flags => wall_flags_4 |
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| 367 | CASE ( 5 ) |
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| 368 | flags => wall_flags_5 |
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| 369 | CASE ( 6 ) |
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| 370 | flags => wall_flags_6 |
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| 371 | CASE ( 7 ) |
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| 372 | flags => wall_flags_7 |
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| 373 | CASE ( 8 ) |
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| 374 | flags => wall_flags_8 |
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| 375 | CASE ( 9 ) |
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| 376 | flags => wall_flags_9 |
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| 377 | CASE ( 10 ) |
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| 378 | flags => wall_flags_10 |
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| 379 | END SELECT |
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| 380 | |
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| 381 | !$OMP PARALLEL PRIVATE (i,j,k) |
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| 382 | !$OMP DO |
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| 383 | DO i = nxl_mg(l), nxr_mg(l) |
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| 384 | DO j = nys_mg(l), nyn_mg(l) |
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| 385 | DO k = nzb+1, nzt_mg(l) |
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| 386 | r(k,j,i) = f_mg(k,j,i) & |
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| 387 | - rho_air_mg(k,l) * ddx2_mg(l) * & |
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| 388 | ( p_mg(k,j,i+1) + IBITS( flags(k,j,i), 5, 1 ) * & |
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| 389 | ( p_mg(k,j,i) - p_mg(k,j,i+1) ) + & |
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| 390 | p_mg(k,j,i-1) + IBITS( flags(k,j,i), 4, 1 ) * & |
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| 391 | ( p_mg(k,j,i) - p_mg(k,j,i-1) ) ) & |
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| 392 | - rho_air_mg(k,l) * ddy2_mg(l) * & |
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| 393 | ( p_mg(k,j+1,i) + IBITS( flags(k,j,i), 3, 1 ) * & |
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| 394 | ( p_mg(k,j,i) - p_mg(k,j+1,i) ) + & |
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| 395 | p_mg(k,j-1,i) + IBITS( flags(k,j,i), 2, 1 ) * & |
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| 396 | ( p_mg(k,j,i) - p_mg(k,j-1,i) ) ) & |
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| 397 | - f2_mg(k,l) * & |
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| 398 | ( p_mg(k+1,j,i) + IBITS( flags(k,j,i), 0, 1 ) * & |
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| 399 | ( p_mg(k,j,i) - p_mg(k+1,j,i) ) ) & |
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| 400 | - f3_mg(k,l) * & |
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| 401 | ( p_mg(k-1,j,i) + IBITS( flags(k,j,i), 0, 1 ) * & |
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| 402 | ( p_mg(k,j,i) - p_mg(k-1,j,i) ) ) & |
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| 403 | + f1_mg(k,l) * p_mg(k,j,i) |
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| 404 | ! |
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| 405 | !-- Residual within topography should be zero |
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| 406 | r(k,j,i) = r(k,j,i) * ( 1.0_wp - IBITS( flags(k,j,i), 6, 1 ) ) |
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| 407 | ENDDO |
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| 408 | ENDDO |
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| 409 | ENDDO |
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| 410 | !$OMP END PARALLEL |
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| 411 | |
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| 412 | ! |
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| 413 | !-- Horizontal boundary conditions |
|---|
| 414 | CALL exchange_horiz( r, 1) |
|---|
| 415 | |
|---|
| 416 | IF ( .NOT. bc_lr_cyc ) THEN |
|---|
| 417 | IF ( inflow_l .OR. outflow_l .OR. nest_bound_l .OR. force_bound_l ) THEN |
|---|
| 418 | r(:,:,nxl_mg(l)-1) = r(:,:,nxl_mg(l)) |
|---|
| 419 | ENDIF |
|---|
| 420 | IF ( inflow_r .OR. outflow_r .OR. nest_bound_r .OR. force_bound_r ) THEN |
|---|
| 421 | r(:,:,nxr_mg(l)+1) = r(:,:,nxr_mg(l)) |
|---|
| 422 | ENDIF |
|---|
| 423 | ENDIF |
|---|
| 424 | |
|---|
| 425 | IF ( .NOT. bc_ns_cyc ) THEN |
|---|
| 426 | IF ( inflow_n .OR. outflow_n .OR. nest_bound_n .OR. force_bound_n ) THEN |
|---|
| 427 | r(:,nyn_mg(l)+1,:) = r(:,nyn_mg(l),:) |
|---|
| 428 | ENDIF |
|---|
| 429 | IF ( inflow_s .OR. outflow_s .OR. nest_bound_s .OR. force_bound_s ) THEN |
|---|
| 430 | r(:,nys_mg(l)-1,:) = r(:,nys_mg(l),:) |
|---|
| 431 | ENDIF |
|---|
| 432 | ENDIF |
|---|
| 433 | |
|---|
| 434 | ! |
|---|
| 435 | !-- Boundary conditions at bottom and top of the domain. |
|---|
| 436 | !-- These points are not handled by the above loop. Points may be within |
|---|
| 437 | !-- buildings, but that doesn't matter. |
|---|
| 438 | IF ( ibc_p_b == 1 ) THEN |
|---|
| 439 | r(nzb,:,: ) = r(nzb+1,:,:) |
|---|
| 440 | ELSE |
|---|
| 441 | r(nzb,:,: ) = 0.0_wp |
|---|
| 442 | ENDIF |
|---|
| 443 | |
|---|
| 444 | IF ( ibc_p_t == 1 ) THEN |
|---|
| 445 | r(nzt_mg(l)+1,:,: ) = r(nzt_mg(l),:,:) |
|---|
| 446 | ELSE |
|---|
| 447 | r(nzt_mg(l)+1,:,: ) = 0.0_wp |
|---|
| 448 | ENDIF |
|---|
| 449 | |
|---|
| 450 | |
|---|
| 451 | END SUBROUTINE resid_noopt |
|---|
| 452 | |
|---|
| 453 | |
|---|
| 454 | !------------------------------------------------------------------------------! |
|---|
| 455 | ! Description: |
|---|
| 456 | ! ------------ |
|---|
| 457 | !> Interpolates the residual on the next coarser grid with "full weighting" |
|---|
| 458 | !> scheme. |
|---|
| 459 | !------------------------------------------------------------------------------! |
|---|
| 460 | SUBROUTINE restrict_noopt( f_mg, r ) |
|---|
| 461 | |
|---|
| 462 | |
|---|
| 463 | USE control_parameters, & |
|---|
| 464 | ONLY: bc_lr_cyc, bc_ns_cyc, grid_level, ibc_p_b, ibc_p_t |
|---|
| 465 | |
|---|
| 466 | USE indices, & |
|---|
| 467 | ONLY: flags, wall_flags_1, wall_flags_2, wall_flags_3, wall_flags_4,& |
|---|
| 468 | wall_flags_5, wall_flags_6, wall_flags_7, wall_flags_8, & |
|---|
| 469 | wall_flags_9, wall_flags_10, nxl_mg, nxr_mg, nys_mg, nyn_mg, & |
|---|
| 470 | nzb, nzt_mg |
|---|
| 471 | |
|---|
| 472 | USE kinds |
|---|
| 473 | |
|---|
| 474 | IMPLICIT NONE |
|---|
| 475 | |
|---|
| 476 | INTEGER(iwp) :: i !< |
|---|
| 477 | INTEGER(iwp) :: ic !< |
|---|
| 478 | INTEGER(iwp) :: j !< |
|---|
| 479 | INTEGER(iwp) :: jc !< |
|---|
| 480 | INTEGER(iwp) :: k !< |
|---|
| 481 | INTEGER(iwp) :: kc !< |
|---|
| 482 | INTEGER(iwp) :: l !< |
|---|
| 483 | |
|---|
| 484 | REAL(wp) :: rkjim !< |
|---|
| 485 | REAL(wp) :: rkjip !< |
|---|
| 486 | REAL(wp) :: rkjmi !< |
|---|
| 487 | REAL(wp) :: rkjmim !< |
|---|
| 488 | REAL(wp) :: rkjmip !< |
|---|
| 489 | REAL(wp) :: rkjpi !< |
|---|
| 490 | REAL(wp) :: rkjpim !< |
|---|
| 491 | REAL(wp) :: rkjpip !< |
|---|
| 492 | REAL(wp) :: rkmji !< |
|---|
| 493 | REAL(wp) :: rkmjim !< |
|---|
| 494 | REAL(wp) :: rkmjip !< |
|---|
| 495 | REAL(wp) :: rkmjmi !< |
|---|
| 496 | REAL(wp) :: rkmjmim !< |
|---|
| 497 | REAL(wp) :: rkmjmip !< |
|---|
| 498 | REAL(wp) :: rkmjpi !< |
|---|
| 499 | REAL(wp) :: rkmjpim !< |
|---|
| 500 | REAL(wp) :: rkmjpip !< |
|---|
| 501 | |
|---|
| 502 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
|---|
| 503 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
|---|
| 504 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: f_mg !< |
|---|
| 505 | |
|---|
| 506 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level+1)+1, & |
|---|
| 507 | nys_mg(grid_level+1)-1:nyn_mg(grid_level+1)+1, & |
|---|
| 508 | nxl_mg(grid_level+1)-1:nxr_mg(grid_level+1)+1) :: r !< |
|---|
| 509 | |
|---|
| 510 | ! |
|---|
| 511 | !-- Interpolate the residual |
|---|
| 512 | l = grid_level |
|---|
| 513 | |
|---|
| 514 | ! |
|---|
| 515 | !-- Choose flag array of the upper level |
|---|
| 516 | SELECT CASE ( l+1 ) |
|---|
| 517 | CASE ( 1 ) |
|---|
| 518 | flags => wall_flags_1 |
|---|
| 519 | CASE ( 2 ) |
|---|
| 520 | flags => wall_flags_2 |
|---|
| 521 | CASE ( 3 ) |
|---|
| 522 | flags => wall_flags_3 |
|---|
| 523 | CASE ( 4 ) |
|---|
| 524 | flags => wall_flags_4 |
|---|
| 525 | CASE ( 5 ) |
|---|
| 526 | flags => wall_flags_5 |
|---|
| 527 | CASE ( 6 ) |
|---|
| 528 | flags => wall_flags_6 |
|---|
| 529 | CASE ( 7 ) |
|---|
| 530 | flags => wall_flags_7 |
|---|
| 531 | CASE ( 8 ) |
|---|
| 532 | flags => wall_flags_8 |
|---|
| 533 | CASE ( 9 ) |
|---|
| 534 | flags => wall_flags_9 |
|---|
| 535 | CASE ( 10 ) |
|---|
| 536 | flags => wall_flags_10 |
|---|
| 537 | END SELECT |
|---|
| 538 | |
|---|
| 539 | !$OMP PARALLEL PRIVATE (i,j,k,ic,jc,kc, rkjim,rkjip,rkjpi,rkjmi,rkjmim,rkjpim, & |
|---|
| 540 | !$OMP rkjmip, rkjpip,rkmji,rkmjim,rkmjip,rkmjpi,rkmjmi,rkmjmim,rkmjpim,rkmjmip,& |
|---|
| 541 | !$OMP rkmjpip ) |
|---|
| 542 | !$OMP DO |
|---|
| 543 | DO ic = nxl_mg(l), nxr_mg(l) |
|---|
| 544 | i = 2*ic |
|---|
| 545 | DO jc = nys_mg(l), nyn_mg(l) |
|---|
| 546 | j = 2*jc |
|---|
| 547 | DO kc = nzb+1, nzt_mg(l) |
|---|
| 548 | k = 2*kc-1 |
|---|
| 549 | ! |
|---|
| 550 | !-- Use implicit Neumann BCs if the respective gridpoint is inside |
|---|
| 551 | !-- the building |
|---|
| 552 | rkjim = r(k,j,i-1) + IBITS( flags(k,j,i-1), 6, 1 ) * & |
|---|
| 553 | ( r(k,j,i) - r(k,j,i-1) ) |
|---|
| 554 | rkjip = r(k,j,i+1) + IBITS( flags(k,j,i+1), 6, 1 ) * & |
|---|
| 555 | ( r(k,j,i) - r(k,j,i+1) ) |
|---|
| 556 | rkjpi = r(k,j+1,i) + IBITS( flags(k,j+1,i), 6, 1 ) * & |
|---|
| 557 | ( r(k,j,i) - r(k,j+1,i) ) |
|---|
| 558 | rkjmi = r(k,j-1,i) + IBITS( flags(k,j-1,i), 6, 1 ) * & |
|---|
| 559 | ( r(k,j,i) - r(k,j-1,i) ) |
|---|
| 560 | rkjmim = r(k,j-1,i-1) + IBITS( flags(k,j-1,i-1), 6, 1 ) * & |
|---|
| 561 | ( r(k,j,i) - r(k,j-1,i-1) ) |
|---|
| 562 | rkjpim = r(k,j+1,i-1) + IBITS( flags(k,j+1,i-1), 6, 1 ) * & |
|---|
| 563 | ( r(k,j,i) - r(k,j+1,i-1) ) |
|---|
| 564 | rkjmip = r(k,j-1,i+1) + IBITS( flags(k,j-1,i+1), 6, 1 ) * & |
|---|
| 565 | ( r(k,j,i) - r(k,j-1,i+1) ) |
|---|
| 566 | rkjpip = r(k,j+1,i+1) + IBITS( flags(k,j+1,i+1), 6, 1 ) * & |
|---|
| 567 | ( r(k,j,i) - r(k,j+1,i+1) ) |
|---|
| 568 | rkmji = r(k-1,j,i) + IBITS( flags(k-1,j,i), 6, 1 ) * & |
|---|
| 569 | ( r(k,j,i) - r(k-1,j,i) ) |
|---|
| 570 | rkmjim = r(k-1,j,i-1) + IBITS( flags(k-1,j,i-1), 6, 1 ) * & |
|---|
| 571 | ( r(k,j,i) - r(k-1,j,i-1) ) |
|---|
| 572 | rkmjip = r(k-1,j,i+1) + IBITS( flags(k-1,j,i+1), 6, 1 ) * & |
|---|
| 573 | ( r(k,j,i) - r(k-1,j,i+1) ) |
|---|
| 574 | rkmjpi = r(k-1,j+1,i) + IBITS( flags(k-1,j+1,i), 6, 1 ) * & |
|---|
| 575 | ( r(k,j,i) - r(k-1,j+1,i) ) |
|---|
| 576 | rkmjmi = r(k-1,j-1,i) + IBITS( flags(k-1,j-1,i), 6, 1 ) * & |
|---|
| 577 | ( r(k,j,i) - r(k-1,j-1,i) ) |
|---|
| 578 | rkmjmim = r(k-1,j-1,i-1) + IBITS( flags(k-1,j-1,i-1), 6, 1 ) * & |
|---|
| 579 | ( r(k,j,i) - r(k-1,j-1,i-1) ) |
|---|
| 580 | rkmjpim = r(k-1,j+1,i-1) + IBITS( flags(k-1,j+1,i-1), 6, 1 ) * & |
|---|
| 581 | ( r(k,j,i) - r(k-1,j+1,i-1) ) |
|---|
| 582 | rkmjmip = r(k-1,j-1,i+1) + IBITS( flags(k-1,j-1,i+1), 6, 1 ) * & |
|---|
| 583 | ( r(k,j,i) - r(k-1,j-1,i+1) ) |
|---|
| 584 | rkmjpip = r(k-1,j+1,i+1) + IBITS( flags(k-1,j+1,i+1), 6, 1 ) * & |
|---|
| 585 | ( r(k,j,i) - r(k-1,j+1,i+1) ) |
|---|
| 586 | |
|---|
| 587 | f_mg(kc,jc,ic) = 1.0_wp / 64.0_wp * ( & |
|---|
| 588 | 8.0_wp * r(k,j,i) & |
|---|
| 589 | + 4.0_wp * ( rkjim + rkjip + & |
|---|
| 590 | rkjpi + rkjmi ) & |
|---|
| 591 | + 2.0_wp * ( rkjmim + rkjpim + & |
|---|
| 592 | rkjmip + rkjpip ) & |
|---|
| 593 | + 4.0_wp * rkmji & |
|---|
| 594 | + 2.0_wp * ( rkmjim + rkmjim + & |
|---|
| 595 | rkmjpi + rkmjmi ) & |
|---|
| 596 | + ( rkmjmim + rkmjpim + & |
|---|
| 597 | rkmjmip + rkmjpip ) & |
|---|
| 598 | + 4.0_wp * r(k+1,j,i) & |
|---|
| 599 | + 2.0_wp * ( r(k+1,j,i-1) + r(k+1,j,i+1) + & |
|---|
| 600 | r(k+1,j+1,i) + r(k+1,j-1,i) ) & |
|---|
| 601 | + ( r(k+1,j-1,i-1) + r(k+1,j+1,i-1) + & |
|---|
| 602 | r(k+1,j-1,i+1) + r(k+1,j+1,i+1) ) & |
|---|
| 603 | ) |
|---|
| 604 | |
|---|
| 605 | ! f_mg(kc,jc,ic) = 1.0_wp / 64.0_wp * ( & |
|---|
| 606 | ! 8.0_wp * r(k,j,i) & |
|---|
| 607 | ! + 4.0_wp * ( r(k,j,i-1) + r(k,j,i+1) + & |
|---|
| 608 | ! r(k,j+1,i) + r(k,j-1,i) ) & |
|---|
| 609 | ! + 2.0_wp * ( r(k,j-1,i-1) + r(k,j+1,i-1) + & |
|---|
| 610 | ! r(k,j-1,i+1) + r(k,j+1,i+1) ) & |
|---|
| 611 | ! + 4.0_wp * r(k-1,j,i) & |
|---|
| 612 | ! + 2.0_wp * ( r(k-1,j,i-1) + r(k-1,j,i+1) + & |
|---|
| 613 | ! r(k-1,j+1,i) + r(k-1,j-1,i) ) & |
|---|
| 614 | ! + ( r(k-1,j-1,i-1) + r(k-1,j+1,i-1) + & |
|---|
| 615 | ! r(k-1,j-1,i+1) + r(k-1,j+1,i+1) ) & |
|---|
| 616 | ! + 4.0_wp * r(k+1,j,i) & |
|---|
| 617 | ! + 2.0_wp * ( r(k+1,j,i-1) + r(k+1,j,i+1) + & |
|---|
| 618 | ! r(k+1,j+1,i) + r(k+1,j-1,i) ) & |
|---|
| 619 | ! + ( r(k+1,j-1,i-1) + r(k+1,j+1,i-1) + & |
|---|
| 620 | ! r(k+1,j-1,i+1) + r(k+1,j+1,i+1) ) & |
|---|
| 621 | ! ) |
|---|
| 622 | ENDDO |
|---|
| 623 | ENDDO |
|---|
| 624 | ENDDO |
|---|
| 625 | !$OMP END PARALLEL |
|---|
| 626 | |
|---|
| 627 | ! |
|---|
| 628 | !-- Horizontal boundary conditions |
|---|
| 629 | CALL exchange_horiz( f_mg, 1) |
|---|
| 630 | |
|---|
| 631 | IF ( .NOT. bc_lr_cyc ) THEN |
|---|
| 632 | IF ( inflow_l .OR. outflow_l .OR. nest_bound_l .OR. force_bound_l ) THEN |
|---|
| 633 | f_mg(:,:,nxl_mg(l)-1) = f_mg(:,:,nxl_mg(l)) |
|---|
| 634 | ENDIF |
|---|
| 635 | IF ( inflow_r .OR. outflow_r .OR. nest_bound_r .OR. force_bound_r ) THEN |
|---|
| 636 | f_mg(:,:,nxr_mg(l)+1) = f_mg(:,:,nxr_mg(l)) |
|---|
| 637 | ENDIF |
|---|
| 638 | ENDIF |
|---|
| 639 | |
|---|
| 640 | IF ( .NOT. bc_ns_cyc ) THEN |
|---|
| 641 | IF ( inflow_n .OR. outflow_n .OR. nest_bound_n .OR. force_bound_n ) THEN |
|---|
| 642 | f_mg(:,nyn_mg(l)+1,:) = f_mg(:,nyn_mg(l),:) |
|---|
| 643 | ENDIF |
|---|
| 644 | IF ( inflow_s .OR. outflow_s .OR. nest_bound_s .OR. force_bound_s ) THEN |
|---|
| 645 | f_mg(:,nys_mg(l)-1,:) = f_mg(:,nys_mg(l),:) |
|---|
| 646 | ENDIF |
|---|
| 647 | ENDIF |
|---|
| 648 | |
|---|
| 649 | ! |
|---|
| 650 | !-- Boundary conditions at bottom and top of the domain. |
|---|
| 651 | !-- These points are not handled by the above loop. Points may be within |
|---|
| 652 | !-- buildings, but that doesn't matter. |
|---|
| 653 | IF ( ibc_p_b == 1 ) THEN |
|---|
| 654 | f_mg(nzb,:,: ) = f_mg(nzb+1,:,:) |
|---|
| 655 | ELSE |
|---|
| 656 | f_mg(nzb,:,: ) = 0.0_wp |
|---|
| 657 | ENDIF |
|---|
| 658 | |
|---|
| 659 | IF ( ibc_p_t == 1 ) THEN |
|---|
| 660 | f_mg(nzt_mg(l)+1,:,: ) = f_mg(nzt_mg(l),:,:) |
|---|
| 661 | ELSE |
|---|
| 662 | f_mg(nzt_mg(l)+1,:,: ) = 0.0_wp |
|---|
| 663 | ENDIF |
|---|
| 664 | |
|---|
| 665 | |
|---|
| 666 | END SUBROUTINE restrict_noopt |
|---|
| 667 | |
|---|
| 668 | |
|---|
| 669 | !------------------------------------------------------------------------------! |
|---|
| 670 | ! Description: |
|---|
| 671 | ! ------------ |
|---|
| 672 | !> Interpolates the correction of the perturbation pressure |
|---|
| 673 | !> to the next finer grid. |
|---|
| 674 | !------------------------------------------------------------------------------! |
|---|
| 675 | SUBROUTINE prolong_noopt( p, temp ) |
|---|
| 676 | |
|---|
| 677 | |
|---|
| 678 | USE control_parameters, & |
|---|
| 679 | ONLY: bc_lr_cyc, bc_ns_cyc, ibc_p_b, ibc_p_t |
|---|
| 680 | USE indices, & |
|---|
| 681 | ONLY: nxl_mg, nxr_mg, nys_mg, nyn_mg, nzb, nzt_mg |
|---|
| 682 | |
|---|
| 683 | USE kinds |
|---|
| 684 | |
|---|
| 685 | IMPLICIT NONE |
|---|
| 686 | |
|---|
| 687 | INTEGER(iwp) :: i !< |
|---|
| 688 | INTEGER(iwp) :: j !< |
|---|
| 689 | INTEGER(iwp) :: k !< |
|---|
| 690 | INTEGER(iwp) :: l !< |
|---|
| 691 | |
|---|
| 692 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level-1)+1, & |
|---|
| 693 | nys_mg(grid_level-1)-1:nyn_mg(grid_level-1)+1, & |
|---|
| 694 | nxl_mg(grid_level-1)-1:nxr_mg(grid_level-1)+1 ) :: p !< |
|---|
| 695 | |
|---|
| 696 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
|---|
| 697 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
|---|
| 698 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: temp !< |
|---|
| 699 | |
|---|
| 700 | |
|---|
| 701 | ! |
|---|
| 702 | !-- First, store elements of the coarser grid on the next finer grid |
|---|
| 703 | l = grid_level |
|---|
| 704 | |
|---|
| 705 | !$OMP PARALLEL PRIVATE (i,j,k) |
|---|
| 706 | !$OMP DO |
|---|
| 707 | DO i = nxl_mg(l-1), nxr_mg(l-1) |
|---|
| 708 | DO j = nys_mg(l-1), nyn_mg(l-1) |
|---|
| 709 | !CDIR NODEP |
|---|
| 710 | DO k = nzb+1, nzt_mg(l-1) |
|---|
| 711 | ! |
|---|
| 712 | !-- Points of the coarse grid are directly stored on the next finer |
|---|
| 713 | !-- grid |
|---|
| 714 | temp(2*k-1,2*j,2*i) = p(k,j,i) |
|---|
| 715 | ! |
|---|
| 716 | !-- Points between two coarse-grid points |
|---|
| 717 | temp(2*k-1,2*j,2*i+1) = 0.5_wp * ( p(k,j,i) + p(k,j,i+1) ) |
|---|
| 718 | temp(2*k-1,2*j+1,2*i) = 0.5_wp * ( p(k,j,i) + p(k,j+1,i) ) |
|---|
| 719 | temp(2*k,2*j,2*i) = 0.5_wp * ( p(k,j,i) + p(k+1,j,i) ) |
|---|
| 720 | ! |
|---|
| 721 | !-- Points in the center of the planes stretched by four points |
|---|
| 722 | !-- of the coarse grid cube |
|---|
| 723 | temp(2*k-1,2*j+1,2*i+1) = 0.25_wp * ( p(k,j,i) + p(k,j,i+1) + & |
|---|
| 724 | p(k,j+1,i) + p(k,j+1,i+1) ) |
|---|
| 725 | temp(2*k,2*j,2*i+1) = 0.25_wp * ( p(k,j,i) + p(k,j,i+1) + & |
|---|
| 726 | p(k+1,j,i) + p(k+1,j,i+1) ) |
|---|
| 727 | temp(2*k,2*j+1,2*i) = 0.25_wp * ( p(k,j,i) + p(k,j+1,i) + & |
|---|
| 728 | p(k+1,j,i) + p(k+1,j+1,i) ) |
|---|
| 729 | ! |
|---|
| 730 | !-- Points in the middle of coarse grid cube |
|---|
| 731 | temp(2*k,2*j+1,2*i+1) = 0.125_wp * ( p(k,j,i) + p(k,j,i+1) + & |
|---|
| 732 | p(k,j+1,i) + p(k,j+1,i+1) + & |
|---|
| 733 | p(k+1,j,i) + p(k+1,j,i+1) + & |
|---|
| 734 | p(k+1,j+1,i) + p(k+1,j+1,i+1) ) |
|---|
| 735 | ENDDO |
|---|
| 736 | ENDDO |
|---|
| 737 | ENDDO |
|---|
| 738 | !$OMP END PARALLEL |
|---|
| 739 | |
|---|
| 740 | ! |
|---|
| 741 | !-- Horizontal boundary conditions |
|---|
| 742 | CALL exchange_horiz( temp, 1) |
|---|
| 743 | |
|---|
| 744 | IF ( .NOT. bc_lr_cyc ) THEN |
|---|
| 745 | IF ( inflow_l .OR. outflow_l .OR. nest_bound_l .OR. force_bound_l ) THEN |
|---|
| 746 | temp(:,:,nxl_mg(l)-1) = temp(:,:,nxl_mg(l)) |
|---|
| 747 | ENDIF |
|---|
| 748 | IF ( inflow_r .OR. outflow_r .OR. nest_bound_r .OR. force_bound_r ) THEN |
|---|
| 749 | temp(:,:,nxr_mg(l)+1) = temp(:,:,nxr_mg(l)) |
|---|
| 750 | ENDIF |
|---|
| 751 | ENDIF |
|---|
| 752 | |
|---|
| 753 | IF ( .NOT. bc_ns_cyc ) THEN |
|---|
| 754 | IF ( inflow_n .OR. outflow_n .OR. nest_bound_n .OR. force_bound_n ) THEN |
|---|
| 755 | temp(:,nyn_mg(l)+1,:) = temp(:,nyn_mg(l),:) |
|---|
| 756 | ENDIF |
|---|
| 757 | IF ( inflow_s .OR. outflow_s .OR. nest_bound_s .OR. force_bound_s ) THEN |
|---|
| 758 | temp(:,nys_mg(l)-1,:) = temp(:,nys_mg(l),:) |
|---|
| 759 | ENDIF |
|---|
| 760 | ENDIF |
|---|
| 761 | |
|---|
| 762 | ! |
|---|
| 763 | !-- Bottom and top boundary conditions |
|---|
| 764 | IF ( ibc_p_b == 1 ) THEN |
|---|
| 765 | temp(nzb,:,: ) = temp(nzb+1,:,:) |
|---|
| 766 | ELSE |
|---|
| 767 | temp(nzb,:,: ) = 0.0_wp |
|---|
| 768 | ENDIF |
|---|
| 769 | |
|---|
| 770 | IF ( ibc_p_t == 1 ) THEN |
|---|
| 771 | temp(nzt_mg(l)+1,:,: ) = temp(nzt_mg(l),:,:) |
|---|
| 772 | ELSE |
|---|
| 773 | temp(nzt_mg(l)+1,:,: ) = 0.0_wp |
|---|
| 774 | ENDIF |
|---|
| 775 | |
|---|
| 776 | |
|---|
| 777 | END SUBROUTINE prolong_noopt |
|---|
| 778 | |
|---|
| 779 | |
|---|
| 780 | !------------------------------------------------------------------------------! |
|---|
| 781 | ! Description: |
|---|
| 782 | ! ------------ |
|---|
| 783 | !> Relaxation method for the multigrid scheme. A Gauss-Seidel iteration with |
|---|
| 784 | !> 3D-Red-Black decomposition (GS-RB) is used. |
|---|
| 785 | !------------------------------------------------------------------------------! |
|---|
| 786 | SUBROUTINE redblack_noopt( f_mg, p_mg ) |
|---|
| 787 | |
|---|
| 788 | |
|---|
| 789 | USE arrays_3d, & |
|---|
| 790 | ONLY: f1_mg, f2_mg, f3_mg, rho_air_mg |
|---|
| 791 | |
|---|
| 792 | USE control_parameters, & |
|---|
| 793 | ONLY: bc_lr_cyc, bc_ns_cyc, ibc_p_b, ibc_p_t, ngsrb |
|---|
| 794 | |
|---|
| 795 | USE cpulog, & |
|---|
| 796 | ONLY: cpu_log, log_point_s |
|---|
| 797 | |
|---|
| 798 | USE grid_variables, & |
|---|
| 799 | ONLY: ddx2_mg, ddy2_mg |
|---|
| 800 | |
|---|
| 801 | USE indices, & |
|---|
| 802 | ONLY: flags, wall_flags_1, wall_flags_2, wall_flags_3, wall_flags_4,& |
|---|
| 803 | wall_flags_5, wall_flags_6, wall_flags_7, wall_flags_8, & |
|---|
| 804 | wall_flags_9, wall_flags_10, nxl_mg, nxr_mg, nys_mg, nyn_mg, & |
|---|
| 805 | nzb, nzt_mg |
|---|
| 806 | |
|---|
| 807 | USE kinds |
|---|
| 808 | |
|---|
| 809 | IMPLICIT NONE |
|---|
| 810 | |
|---|
| 811 | INTEGER(iwp) :: color !< |
|---|
| 812 | INTEGER(iwp) :: i !< |
|---|
| 813 | INTEGER(iwp) :: ic !< |
|---|
| 814 | INTEGER(iwp) :: j !< |
|---|
| 815 | INTEGER(iwp) :: jc !< |
|---|
| 816 | INTEGER(iwp) :: jj !< |
|---|
| 817 | INTEGER(iwp) :: k !< |
|---|
| 818 | INTEGER(iwp) :: l !< |
|---|
| 819 | INTEGER(iwp) :: n !< |
|---|
| 820 | |
|---|
| 821 | LOGICAL :: unroll !< |
|---|
| 822 | |
|---|
| 823 | REAL(wp) :: wall_left !< |
|---|
| 824 | REAL(wp) :: wall_north !< |
|---|
| 825 | REAL(wp) :: wall_right !< |
|---|
| 826 | REAL(wp) :: wall_south !< |
|---|
| 827 | REAL(wp) :: wall_total !< |
|---|
| 828 | REAL(wp) :: wall_top !< |
|---|
| 829 | |
|---|
| 830 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
|---|
| 831 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
|---|
| 832 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: f_mg !< |
|---|
| 833 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
|---|
| 834 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
|---|
| 835 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: p_mg !< |
|---|
| 836 | |
|---|
| 837 | l = grid_level |
|---|
| 838 | |
|---|
| 839 | ! |
|---|
| 840 | !-- Choose flag array of this level |
|---|
| 841 | SELECT CASE ( l ) |
|---|
| 842 | CASE ( 1 ) |
|---|
| 843 | flags => wall_flags_1 |
|---|
| 844 | CASE ( 2 ) |
|---|
| 845 | flags => wall_flags_2 |
|---|
| 846 | CASE ( 3 ) |
|---|
| 847 | flags => wall_flags_3 |
|---|
| 848 | CASE ( 4 ) |
|---|
| 849 | flags => wall_flags_4 |
|---|
| 850 | CASE ( 5 ) |
|---|
| 851 | flags => wall_flags_5 |
|---|
| 852 | CASE ( 6 ) |
|---|
| 853 | flags => wall_flags_6 |
|---|
| 854 | CASE ( 7 ) |
|---|
| 855 | flags => wall_flags_7 |
|---|
| 856 | CASE ( 8 ) |
|---|
| 857 | flags => wall_flags_8 |
|---|
| 858 | CASE ( 9 ) |
|---|
| 859 | flags => wall_flags_9 |
|---|
| 860 | CASE ( 10 ) |
|---|
| 861 | flags => wall_flags_10 |
|---|
| 862 | END SELECT |
|---|
| 863 | |
|---|
| 864 | unroll = ( MOD( nyn_mg(l)-nys_mg(l)+1, 4 ) == 0 .AND. & |
|---|
| 865 | MOD( nxr_mg(l)-nxl_mg(l)+1, 2 ) == 0 ) |
|---|
| 866 | |
|---|
| 867 | DO n = 1, ngsrb |
|---|
| 868 | |
|---|
| 869 | DO color = 1, 2 |
|---|
| 870 | |
|---|
| 871 | IF ( .NOT. unroll ) THEN |
|---|
| 872 | |
|---|
| 873 | CALL cpu_log( log_point_s(36), 'redblack_no_unroll_noopt', 'start' ) |
|---|
| 874 | |
|---|
| 875 | ! |
|---|
| 876 | !-- Without unrolling of loops, no cache optimization |
|---|
| 877 | DO i = nxl_mg(l), nxr_mg(l), 2 |
|---|
| 878 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
|---|
| 879 | DO k = nzb+1, nzt_mg(l), 2 |
|---|
| 880 | ! p_mg(k,j,i) = 1.0_wp / f1_mg(k,l) * ( & |
|---|
| 881 | ! ddx2_mg(l) * ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
|---|
| 882 | ! + ddy2_mg(l) * ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
|---|
| 883 | ! + f2_mg(k,l) * p_mg(k+1,j,i) & |
|---|
| 884 | ! + f3_mg(k,l) * p_mg(k-1,j,i) - f_mg(k,j,i) & |
|---|
| 885 | ! ) |
|---|
| 886 | |
|---|
| 887 | p_mg(k,j,i) = 1.0_wp / f1_mg(k,l) * ( & |
|---|
| 888 | rho_air_mg(k,l) * ddx2_mg(l) * & |
|---|
| 889 | ( p_mg(k,j,i+1) + IBITS( flags(k,j,i), 5, 1 ) * & |
|---|
| 890 | ( p_mg(k,j,i) - p_mg(k,j,i+1) ) + & |
|---|
| 891 | p_mg(k,j,i-1) + IBITS( flags(k,j,i), 4, 1 ) * & |
|---|
| 892 | ( p_mg(k,j,i) - p_mg(k,j,i-1) ) ) & |
|---|
| 893 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
|---|
| 894 | ( p_mg(k,j+1,i) + IBITS( flags(k,j,i), 3, 1 ) * & |
|---|
| 895 | ( p_mg(k,j,i) - p_mg(k,j+1,i) ) + & |
|---|
| 896 | p_mg(k,j-1,i) + IBITS( flags(k,j,i), 2, 1 ) * & |
|---|
| 897 | ( p_mg(k,j,i) - p_mg(k,j-1,i) ) ) & |
|---|
| 898 | + f2_mg(k,l) * & |
|---|
| 899 | ( p_mg(k+1,j,i) + IBITS( flags(k,j,i), 7, 1 ) * & |
|---|
| 900 | ( p_mg(k,j,i) - p_mg(k+1,j,i) ) ) & |
|---|
| 901 | + f3_mg(k,l) * & |
|---|
| 902 | ( p_mg(k-1,j,i) + IBITS( flags(k,j,i), 0, 1 ) * & |
|---|
| 903 | ( p_mg(k,j,i) - p_mg(k-1,j,i) ) ) & |
|---|
| 904 | - f_mg(k,j,i) ) |
|---|
| 905 | ENDDO |
|---|
| 906 | ENDDO |
|---|
| 907 | ENDDO |
|---|
| 908 | |
|---|
| 909 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
|---|
| 910 | DO j = nys_mg(l) + (color-1), 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 | rho_air_mg(k,l) * ddx2_mg(l) * & |
|---|
| 914 | ( p_mg(k,j,i+1) + IBITS( flags(k,j,i), 5, 1 ) * & |
|---|
| 915 | ( p_mg(k,j,i) - p_mg(k,j,i+1) ) + & |
|---|
| 916 | p_mg(k,j,i-1) + IBITS( flags(k,j,i), 4, 1 ) * & |
|---|
| 917 | ( p_mg(k,j,i) - p_mg(k,j,i-1) ) ) & |
|---|
| 918 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
|---|
| 919 | ( p_mg(k,j+1,i) + IBITS( flags(k,j,i), 3, 1 ) * & |
|---|
| 920 | ( p_mg(k,j,i) - p_mg(k,j+1,i) ) + & |
|---|
| 921 | p_mg(k,j-1,i) + IBITS( flags(k,j,i), 2, 1 ) * & |
|---|
| 922 | ( p_mg(k,j,i) - p_mg(k,j-1,i) ) ) & |
|---|
| 923 | + f2_mg(k,l) * & |
|---|
| 924 | ( p_mg(k+1,j,i) + IBITS( flags(k,j,i), 7, 1 ) * & |
|---|
| 925 | ( p_mg(k,j,i) - p_mg(k+1,j,i) ) ) & |
|---|
| 926 | + f3_mg(k,l) * & |
|---|
| 927 | ( p_mg(k-1,j,i) + IBITS( flags(k,j,i), 0, 1 ) * & |
|---|
| 928 | ( p_mg(k,j,i) - p_mg(k-1,j,i) ) ) & |
|---|
| 929 | - f_mg(k,j,i) ) |
|---|
| 930 | ENDDO |
|---|
| 931 | ENDDO |
|---|
| 932 | ENDDO |
|---|
| 933 | |
|---|
| 934 | DO i = nxl_mg(l), nxr_mg(l), 2 |
|---|
| 935 | DO j = nys_mg(l) + (color-1), nyn_mg(l), 2 |
|---|
| 936 | DO k = nzb+2, nzt_mg(l), 2 |
|---|
| 937 | p_mg(k,j,i) = 1.0_wp / f1_mg(k,l) * ( & |
|---|
| 938 | rho_air_mg(k,l) * ddx2_mg(l) * & |
|---|
| 939 | ( p_mg(k,j,i+1) + IBITS( flags(k,j,i), 5, 1 ) * & |
|---|
| 940 | ( p_mg(k,j,i) - p_mg(k,j,i+1) ) + & |
|---|
| 941 | p_mg(k,j,i-1) + IBITS( flags(k,j,i), 4, 1 ) * & |
|---|
| 942 | ( p_mg(k,j,i) - p_mg(k,j,i-1) ) ) & |
|---|
| 943 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
|---|
| 944 | ( p_mg(k,j+1,i) + IBITS( flags(k,j,i), 3, 1 ) * & |
|---|
| 945 | ( p_mg(k,j,i) - p_mg(k,j+1,i) ) + & |
|---|
| 946 | p_mg(k,j-1,i) + IBITS( flags(k,j,i), 2, 1 ) * & |
|---|
| 947 | ( p_mg(k,j,i) - p_mg(k,j-1,i) ) ) & |
|---|
| 948 | + f2_mg(k,l) * & |
|---|
| 949 | ( p_mg(k+1,j,i) + IBITS( flags(k,j,i), 7, 1 ) * & |
|---|
| 950 | ( p_mg(k,j,i) - p_mg(k+1,j,i) ) ) & |
|---|
| 951 | + f3_mg(k,l) * & |
|---|
| 952 | ( p_mg(k-1,j,i) + IBITS( flags(k,j,i), 0, 1 ) * & |
|---|
| 953 | ( p_mg(k,j,i) - p_mg(k-1,j,i) ) ) & |
|---|
| 954 | - f_mg(k,j,i) ) |
|---|
| 955 | ENDDO |
|---|
| 956 | ENDDO |
|---|
| 957 | ENDDO |
|---|
| 958 | |
|---|
| 959 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
|---|
| 960 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
|---|
| 961 | DO k = nzb+2, nzt_mg(l), 2 |
|---|
| 962 | p_mg(k,j,i) = 1.0_wp / f1_mg(k,l) * ( & |
|---|
| 963 | rho_air_mg(k,l) * ddx2_mg(l) * & |
|---|
| 964 | ( p_mg(k,j,i+1) + IBITS( flags(k,j,i), 5, 1 ) * & |
|---|
| 965 | ( p_mg(k,j,i) - p_mg(k,j,i+1) ) + & |
|---|
| 966 | p_mg(k,j,i-1) + IBITS( flags(k,j,i), 4, 1 ) * & |
|---|
| 967 | ( p_mg(k,j,i) - p_mg(k,j,i-1) ) ) & |
|---|
| 968 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
|---|
| 969 | ( p_mg(k,j+1,i) + IBITS( flags(k,j,i), 3, 1 ) * & |
|---|
| 970 | ( p_mg(k,j,i) - p_mg(k,j+1,i) ) + & |
|---|
| 971 | p_mg(k,j-1,i) + IBITS( flags(k,j,i), 2, 1 ) * & |
|---|
| 972 | ( p_mg(k,j,i) - p_mg(k,j-1,i) ) ) & |
|---|
| 973 | + f2_mg(k,l) * & |
|---|
| 974 | ( p_mg(k+1,j,i) + IBITS( flags(k,j,i), 7, 1 ) * & |
|---|
| 975 | ( p_mg(k,j,i) - p_mg(k+1,j,i) ) ) & |
|---|
| 976 | + f3_mg(k,l) * & |
|---|
| 977 | ( p_mg(k-1,j,i) + IBITS( flags(k,j,i), 0, 1 ) * & |
|---|
| 978 | ( p_mg(k,j,i) - p_mg(k-1,j,i) ) ) & |
|---|
| 979 | - f_mg(k,j,i) ) |
|---|
| 980 | ENDDO |
|---|
| 981 | ENDDO |
|---|
| 982 | ENDDO |
|---|
| 983 | CALL cpu_log( log_point_s(36), 'redblack_no_unroll_noopt', 'stop' ) |
|---|
| 984 | |
|---|
| 985 | ELSE |
|---|
| 986 | |
|---|
| 987 | ! |
|---|
| 988 | !-- Loop unrolling along y, only one i loop for better cache use |
|---|
| 989 | CALL cpu_log( log_point_s(38), 'redblack_unroll_noopt', 'start' ) |
|---|
| 990 | DO ic = nxl_mg(l), nxr_mg(l), 2 |
|---|
| 991 | DO jc = nys_mg(l), nyn_mg(l), 4 |
|---|
| 992 | i = ic |
|---|
| 993 | jj = jc+2-color |
|---|
| 994 | DO k = nzb+1, nzt_mg(l), 2 |
|---|
| 995 | j = jj |
|---|
| 996 | p_mg(k,j,i) = 1.0_wp / f1_mg(k,l) * ( & |
|---|
| 997 | rho_air_mg(k,l) * ddx2_mg(l) * & |
|---|
| 998 | ( p_mg(k,j,i+1) + IBITS( flags(k,j,i), 5, 1 ) * & |
|---|
| 999 | ( p_mg(k,j,i) - p_mg(k,j,i+1) ) + & |
|---|
| 1000 | p_mg(k,j,i-1) + IBITS( flags(k,j,i), 4, 1 ) * & |
|---|
| 1001 | ( p_mg(k,j,i) - p_mg(k,j,i-1) ) ) & |
|---|
| 1002 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
|---|
| 1003 | ( p_mg(k,j+1,i) + IBITS( flags(k,j,i), 3, 1 ) * & |
|---|
| 1004 | ( p_mg(k,j,i) - p_mg(k,j+1,i) ) + & |
|---|
| 1005 | p_mg(k,j-1,i) + IBITS( flags(k,j,i), 2, 1 ) * & |
|---|
| 1006 | ( p_mg(k,j,i) - p_mg(k,j-1,i) ) ) & |
|---|
| 1007 | + f2_mg(k,l) * & |
|---|
| 1008 | ( p_mg(k+1,j,i) + IBITS( flags(k,j,i), 7, 1 ) * & |
|---|
| 1009 | ( p_mg(k,j,i) - p_mg(k+1,j,i) ) ) & |
|---|
| 1010 | + f3_mg(k,l) * & |
|---|
| 1011 | ( p_mg(k-1,j,i) + IBITS( flags(k,j,i), 0, 1 ) * & |
|---|
| 1012 | ( p_mg(k,j,i) - p_mg(k-1,j,i) ) ) & |
|---|
| 1013 | - f_mg(k,j,i) ) |
|---|
| 1014 | j = jj+2 |
|---|
| 1015 | p_mg(k,j,i) = 1.0_wp / f1_mg(k,l) * ( & |
|---|
| 1016 | rho_air_mg(k,l) * ddx2_mg(l) * & |
|---|
| 1017 | ( p_mg(k,j,i+1) + IBITS( flags(k,j,i), 5, 1 ) * & |
|---|
| 1018 | ( p_mg(k,j,i) - p_mg(k,j,i+1) ) + & |
|---|
| 1019 | p_mg(k,j,i-1) + IBITS( flags(k,j,i), 4, 1 ) * & |
|---|
| 1020 | ( p_mg(k,j,i) - p_mg(k,j,i-1) ) ) & |
|---|
| 1021 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
|---|
| 1022 | ( p_mg(k,j+1,i) + IBITS( flags(k,j,i), 3, 1 ) * & |
|---|
| 1023 | ( p_mg(k,j,i) - p_mg(k,j+1,i) ) + & |
|---|
| 1024 | p_mg(k,j-1,i) + IBITS( flags(k,j,i), 2, 1 ) * & |
|---|
| 1025 | ( p_mg(k,j,i) - p_mg(k,j-1,i) ) ) & |
|---|
| 1026 | + f2_mg(k,l) * & |
|---|
| 1027 | ( p_mg(k+1,j,i) + IBITS( flags(k,j,i), 7, 1 ) * & |
|---|
| 1028 | ( p_mg(k,j,i) - p_mg(k+1,j,i) ) ) & |
|---|
| 1029 | + f3_mg(k,l) * & |
|---|
| 1030 | ( p_mg(k-1,j,i) + IBITS( flags(k,j,i), 0, 1 ) * & |
|---|
| 1031 | ( p_mg(k,j,i) - p_mg(k-1,j,i) ) ) & |
|---|
| 1032 | - f_mg(k,j,i) ) |
|---|
| 1033 | ENDDO |
|---|
| 1034 | |
|---|
| 1035 | i = ic+1 |
|---|
| 1036 | jj = jc+color-1 |
|---|
| 1037 | DO k = nzb+1, nzt_mg(l), 2 |
|---|
| 1038 | j =jj |
|---|
| 1039 | p_mg(k,j,i) = 1.0_wp / f1_mg(k,l) * ( & |
|---|
| 1040 | rho_air_mg(k,l) * ddx2_mg(l) * & |
|---|
| 1041 | ( p_mg(k,j,i+1) + IBITS( flags(k,j,i), 5, 1 ) * & |
|---|
| 1042 | ( p_mg(k,j,i) - p_mg(k,j,i+1) ) + & |
|---|
| 1043 | p_mg(k,j,i-1) + IBITS( flags(k,j,i), 4, 1 ) * & |
|---|
| 1044 | ( p_mg(k,j,i) - p_mg(k,j,i-1) ) ) & |
|---|
| 1045 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
|---|
| 1046 | ( p_mg(k,j+1,i) + IBITS( flags(k,j,i), 3, 1 ) * & |
|---|
| 1047 | ( p_mg(k,j,i) - p_mg(k,j+1,i) ) + & |
|---|
| 1048 | p_mg(k,j-1,i) + IBITS( flags(k,j,i), 2, 1 ) * & |
|---|
| 1049 | ( p_mg(k,j,i) - p_mg(k,j-1,i) ) ) & |
|---|
| 1050 | + f2_mg(k,l) * & |
|---|
| 1051 | ( p_mg(k+1,j,i) + IBITS( flags(k,j,i), 7, 1 ) * & |
|---|
| 1052 | ( p_mg(k,j,i) - p_mg(k+1,j,i) ) ) & |
|---|
| 1053 | + f3_mg(k,l) * & |
|---|
| 1054 | ( p_mg(k-1,j,i) + IBITS( flags(k,j,i), 0, 1 ) * & |
|---|
| 1055 | ( p_mg(k,j,i) - p_mg(k-1,j,i) ) ) & |
|---|
| 1056 | - f_mg(k,j,i) ) |
|---|
| 1057 | j = jj+2 |
|---|
| 1058 | p_mg(k,j,i) = 1.0_wp / f1_mg(k,l) * ( & |
|---|
| 1059 | rho_air_mg(k,l) * ddx2_mg(l) * & |
|---|
| 1060 | ( p_mg(k,j,i+1) + IBITS( flags(k,j,i), 5, 1 ) * & |
|---|
| 1061 | ( p_mg(k,j,i) - p_mg(k,j,i+1) ) + & |
|---|
| 1062 | p_mg(k,j,i-1) + IBITS( flags(k,j,i), 4, 1 ) * & |
|---|
| 1063 | ( p_mg(k,j,i) - p_mg(k,j,i-1) ) ) & |
|---|
| 1064 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
|---|
| 1065 | ( p_mg(k,j+1,i) + IBITS( flags(k,j,i), 3, 1 ) * & |
|---|
| 1066 | ( p_mg(k,j,i) - p_mg(k,j+1,i) ) + & |
|---|
| 1067 | p_mg(k,j-1,i) + IBITS( flags(k,j,i), 2, 1 ) * & |
|---|
| 1068 | ( p_mg(k,j,i) - p_mg(k,j-1,i) ) ) & |
|---|
| 1069 | + f2_mg(k,l) * & |
|---|
| 1070 | ( p_mg(k+1,j,i) + IBITS( flags(k,j,i), 7, 1 ) * & |
|---|
| 1071 | ( p_mg(k,j,i) - p_mg(k+1,j,i) ) ) & |
|---|
| 1072 | + f3_mg(k,l) * & |
|---|
| 1073 | ( p_mg(k-1,j,i) + IBITS( flags(k,j,i), 0, 1 ) * & |
|---|
| 1074 | ( p_mg(k,j,i) - p_mg(k-1,j,i) ) ) & |
|---|
| 1075 | - f_mg(k,j,i) ) |
|---|
| 1076 | ENDDO |
|---|
| 1077 | |
|---|
| 1078 | i = ic |
|---|
| 1079 | jj = jc+color-1 |
|---|
| 1080 | DO k = nzb+2, nzt_mg(l), 2 |
|---|
| 1081 | j =jj |
|---|
| 1082 | p_mg(k,j,i) = 1.0_wp / f1_mg(k,l) * ( & |
|---|
| 1083 | rho_air_mg(k,l) * ddx2_mg(l) * & |
|---|
| 1084 | ( p_mg(k,j,i+1) + IBITS( flags(k,j,i), 5, 1 ) * & |
|---|
| 1085 | ( p_mg(k,j,i) - p_mg(k,j,i+1) ) + & |
|---|
| 1086 | p_mg(k,j,i-1) + IBITS( flags(k,j,i), 4, 1 ) * & |
|---|
| 1087 | ( p_mg(k,j,i) - p_mg(k,j,i-1) ) ) & |
|---|
| 1088 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
|---|
| 1089 | ( p_mg(k,j+1,i) + IBITS( flags(k,j,i), 3, 1 ) * & |
|---|
| 1090 | ( p_mg(k,j,i) - p_mg(k,j+1,i) ) + & |
|---|
| 1091 | p_mg(k,j-1,i) + IBITS( flags(k,j,i), 2, 1 ) * & |
|---|
| 1092 | ( p_mg(k,j,i) - p_mg(k,j-1,i) ) ) & |
|---|
| 1093 | + f2_mg(k,l) * & |
|---|
| 1094 | ( p_mg(k+1,j,i) + IBITS( flags(k,j,i), 7, 1 ) * & |
|---|
| 1095 | ( p_mg(k,j,i) - p_mg(k+1,j,i) ) ) & |
|---|
| 1096 | + f3_mg(k,l) * & |
|---|
| 1097 | ( p_mg(k-1,j,i) + IBITS( flags(k,j,i), 0, 1 ) * & |
|---|
| 1098 | ( p_mg(k,j,i) - p_mg(k-1,j,i) ) ) & |
|---|
| 1099 | - f_mg(k,j,i) ) |
|---|
| 1100 | j = jj+2 |
|---|
| 1101 | p_mg(k,j,i) = 1.0_wp / f1_mg(k,l) * ( & |
|---|
| 1102 | rho_air_mg(k,l) * ddx2_mg(l) * & |
|---|
| 1103 | ( p_mg(k,j,i+1) + IBITS( flags(k,j,i), 5, 1 ) * & |
|---|
| 1104 | ( p_mg(k,j,i) - p_mg(k,j,i+1) ) + & |
|---|
| 1105 | p_mg(k,j,i-1) + IBITS( flags(k,j,i), 4, 1 ) * & |
|---|
| 1106 | ( p_mg(k,j,i) - p_mg(k,j,i-1) ) ) & |
|---|
| 1107 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
|---|
| 1108 | ( p_mg(k,j+1,i) + IBITS( flags(k,j,i), 3, 1 ) * & |
|---|
| 1109 | ( p_mg(k,j,i) - p_mg(k,j+1,i) ) + & |
|---|
| 1110 | p_mg(k,j-1,i) + IBITS( flags(k,j,i), 2, 1 ) * & |
|---|
| 1111 | ( p_mg(k,j,i) - p_mg(k,j-1,i) ) ) & |
|---|
| 1112 | + f2_mg(k,l) * & |
|---|
| 1113 | ( p_mg(k+1,j,i) + IBITS( flags(k,j,i), 7, 1 ) * & |
|---|
| 1114 | ( p_mg(k,j,i) - p_mg(k+1,j,i) ) ) & |
|---|
| 1115 | + f3_mg(k,l) * & |
|---|
| 1116 | ( p_mg(k-1,j,i) + IBITS( flags(k,j,i), 0, 1 ) * & |
|---|
| 1117 | ( p_mg(k,j,i) - p_mg(k-1,j,i) ) ) & |
|---|
| 1118 | - f_mg(k,j,i) ) |
|---|
| 1119 | ENDDO |
|---|
| 1120 | |
|---|
| 1121 | i = ic+1 |
|---|
| 1122 | jj = jc+2-color |
|---|
| 1123 | DO k = nzb+2, nzt_mg(l), 2 |
|---|
| 1124 | j =jj |
|---|
| 1125 | p_mg(k,j,i) = 1.0_wp / f1_mg(k,l) * ( & |
|---|
| 1126 | rho_air_mg(k,l) * ddx2_mg(l) * & |
|---|
| 1127 | ( p_mg(k,j,i+1) + IBITS( flags(k,j,i), 5, 1 ) * & |
|---|
| 1128 | ( p_mg(k,j,i) - p_mg(k,j,i+1) ) + & |
|---|
| 1129 | p_mg(k,j,i-1) + IBITS( flags(k,j,i), 4, 1 ) * & |
|---|
| 1130 | ( p_mg(k,j,i) - p_mg(k,j,i-1) ) ) & |
|---|
| 1131 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
|---|
| 1132 | ( p_mg(k,j+1,i) + IBITS( flags(k,j,i), 3, 1 ) * & |
|---|
| 1133 | ( p_mg(k,j,i) - p_mg(k,j+1,i) ) + & |
|---|
| 1134 | p_mg(k,j-1,i) + IBITS( flags(k,j,i), 2, 1 ) * & |
|---|
| 1135 | ( p_mg(k,j,i) - p_mg(k,j-1,i) ) ) & |
|---|
| 1136 | + f2_mg(k,l) * & |
|---|
| 1137 | ( p_mg(k+1,j,i) + IBITS( flags(k,j,i), 7, 1 ) * & |
|---|
| 1138 | ( p_mg(k,j,i) - p_mg(k+1,j,i) ) ) & |
|---|
| 1139 | + f3_mg(k,l) * & |
|---|
| 1140 | ( p_mg(k-1,j,i) + IBITS( flags(k,j,i), 0, 1 ) * & |
|---|
| 1141 | ( p_mg(k,j,i) - p_mg(k-1,j,i) ) ) & |
|---|
| 1142 | - f_mg(k,j,i) ) |
|---|
| 1143 | j = jj+2 |
|---|
| 1144 | p_mg(k,j,i) = 1.0_wp / f1_mg(k,l) * ( & |
|---|
| 1145 | rho_air_mg(k,l) * ddx2_mg(l) * & |
|---|
| 1146 | ( p_mg(k,j,i+1) + IBITS( flags(k,j,i), 5, 1 ) * & |
|---|
| 1147 | ( p_mg(k,j,i) - p_mg(k,j,i+1) ) + & |
|---|
| 1148 | p_mg(k,j,i-1) + IBITS( flags(k,j,i), 4, 1 ) * & |
|---|
| 1149 | ( p_mg(k,j,i) - p_mg(k,j,i-1) ) ) & |
|---|
| 1150 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
|---|
| 1151 | ( p_mg(k,j+1,i) + IBITS( flags(k,j,i), 3, 1 ) * & |
|---|
| 1152 | ( p_mg(k,j,i) - p_mg(k,j+1,i) ) + & |
|---|
| 1153 | p_mg(k,j-1,i) + IBITS( flags(k,j,i), 2, 1 ) * & |
|---|
| 1154 | ( p_mg(k,j,i) - p_mg(k,j-1,i) ) ) & |
|---|
| 1155 | + f2_mg(k,l) * & |
|---|
| 1156 | ( p_mg(k+1,j,i) + IBITS( flags(k,j,i), 7, 1 ) * & |
|---|
| 1157 | ( p_mg(k,j,i) - p_mg(k+1,j,i) ) ) & |
|---|
| 1158 | + f3_mg(k,l) * & |
|---|
| 1159 | ( p_mg(k-1,j,i) + IBITS( flags(k,j,i), 0, 1 ) * & |
|---|
| 1160 | ( p_mg(k,j,i) - p_mg(k-1,j,i) ) ) & |
|---|
| 1161 | - f_mg(k,j,i) ) |
|---|
| 1162 | ENDDO |
|---|
| 1163 | |
|---|
| 1164 | ENDDO |
|---|
| 1165 | ENDDO |
|---|
| 1166 | CALL cpu_log( log_point_s(38), 'redblack_unroll_noopt', 'stop' ) |
|---|
| 1167 | |
|---|
| 1168 | ENDIF |
|---|
| 1169 | |
|---|
| 1170 | ! |
|---|
| 1171 | !-- Horizontal boundary conditions |
|---|
| 1172 | CALL exchange_horiz( p_mg, 1 ) |
|---|
| 1173 | |
|---|
| 1174 | IF ( .NOT. bc_lr_cyc ) THEN |
|---|
| 1175 | IF ( inflow_l .OR. outflow_l .OR. nest_bound_l .OR. force_bound_l ) THEN |
|---|
| 1176 | p_mg(:,:,nxl_mg(l)-1) = p_mg(:,:,nxl_mg(l)) |
|---|
| 1177 | ENDIF |
|---|
| 1178 | IF ( inflow_r .OR. outflow_r .OR. nest_bound_r .OR. force_bound_r ) THEN |
|---|
| 1179 | p_mg(:,:,nxr_mg(l)+1) = p_mg(:,:,nxr_mg(l)) |
|---|
| 1180 | ENDIF |
|---|
| 1181 | ENDIF |
|---|
| 1182 | |
|---|
| 1183 | IF ( .NOT. bc_ns_cyc ) THEN |
|---|
| 1184 | IF ( inflow_n .OR. outflow_n .OR. nest_bound_n .OR. force_bound_n ) THEN |
|---|
| 1185 | p_mg(:,nyn_mg(l)+1,:) = p_mg(:,nyn_mg(l),:) |
|---|
| 1186 | ENDIF |
|---|
| 1187 | IF ( inflow_s .OR. outflow_s .OR. nest_bound_s .OR. force_bound_s ) THEN |
|---|
| 1188 | p_mg(:,nys_mg(l)-1,:) = p_mg(:,nys_mg(l),:) |
|---|
| 1189 | ENDIF |
|---|
| 1190 | ENDIF |
|---|
| 1191 | |
|---|
| 1192 | ! |
|---|
| 1193 | !-- Bottom and top boundary conditions |
|---|
| 1194 | IF ( ibc_p_b == 1 ) THEN |
|---|
| 1195 | p_mg(nzb,:,: ) = p_mg(nzb+1,:,:) |
|---|
| 1196 | ELSE |
|---|
| 1197 | p_mg(nzb,:,: ) = 0.0_wp |
|---|
| 1198 | ENDIF |
|---|
| 1199 | |
|---|
| 1200 | IF ( ibc_p_t == 1 ) THEN |
|---|
| 1201 | p_mg(nzt_mg(l)+1,:,: ) = p_mg(nzt_mg(l),:,:) |
|---|
| 1202 | ELSE |
|---|
| 1203 | p_mg(nzt_mg(l)+1,:,: ) = 0.0_wp |
|---|
| 1204 | ENDIF |
|---|
| 1205 | |
|---|
| 1206 | ENDDO |
|---|
| 1207 | |
|---|
| 1208 | ENDDO |
|---|
| 1209 | |
|---|
| 1210 | ! |
|---|
| 1211 | !-- Set pressure within topography and at the topography surfaces |
|---|
| 1212 | !$OMP PARALLEL PRIVATE (i,j,k,wall_left,wall_north,wall_right,wall_south,wall_top,wall_total) |
|---|
| 1213 | !$OMP DO |
|---|
| 1214 | DO i = nxl_mg(l), nxr_mg(l) |
|---|
| 1215 | DO j = nys_mg(l), nyn_mg(l) |
|---|
| 1216 | DO k = nzb, nzt_mg(l) |
|---|
| 1217 | ! |
|---|
| 1218 | !-- First, set pressure inside topography to zero |
|---|
| 1219 | p_mg(k,j,i) = p_mg(k,j,i) * ( 1.0_wp - IBITS( flags(k,j,i), 6, 1 ) ) |
|---|
| 1220 | ! |
|---|
| 1221 | !-- Second, determine if the gridpoint inside topography is adjacent |
|---|
| 1222 | !-- to a wall and set its value to a value given by the average of |
|---|
| 1223 | !-- those values obtained from Neumann boundary condition |
|---|
| 1224 | wall_left = IBITS( flags(k,j,i-1), 5, 1 ) |
|---|
| 1225 | wall_right = IBITS( flags(k,j,i+1), 4, 1 ) |
|---|
| 1226 | wall_south = IBITS( flags(k,j-1,i), 3, 1 ) |
|---|
| 1227 | wall_north = IBITS( flags(k,j+1,i), 2, 1 ) |
|---|
| 1228 | wall_top = IBITS( flags(k+1,j,i), 0, 1 ) |
|---|
| 1229 | wall_total = wall_left + wall_right + wall_south + wall_north + & |
|---|
| 1230 | wall_top |
|---|
| 1231 | |
|---|
| 1232 | IF ( wall_total > 0.0_wp ) THEN |
|---|
| 1233 | p_mg(k,j,i) = 1.0_wp / wall_total * & |
|---|
| 1234 | ( wall_left * p_mg(k,j,i-1) + & |
|---|
| 1235 | wall_right * p_mg(k,j,i+1) + & |
|---|
| 1236 | wall_south * p_mg(k,j-1,i) + & |
|---|
| 1237 | wall_north * p_mg(k,j+1,i) + & |
|---|
| 1238 | wall_top * p_mg(k+1,j,i) ) |
|---|
| 1239 | ENDIF |
|---|
| 1240 | ENDDO |
|---|
| 1241 | ENDDO |
|---|
| 1242 | ENDDO |
|---|
| 1243 | !$OMP END PARALLEL |
|---|
| 1244 | |
|---|
| 1245 | ! |
|---|
| 1246 | !-- One more time horizontal boundary conditions |
|---|
| 1247 | CALL exchange_horiz( p_mg, 1) |
|---|
| 1248 | |
|---|
| 1249 | |
|---|
| 1250 | END SUBROUTINE redblack_noopt |
|---|
| 1251 | |
|---|
| 1252 | |
|---|
| 1253 | |
|---|
| 1254 | !------------------------------------------------------------------------------! |
|---|
| 1255 | ! Description: |
|---|
| 1256 | ! ------------ |
|---|
| 1257 | !> Gather subdomain data from all PEs. |
|---|
| 1258 | !------------------------------------------------------------------------------! |
|---|
| 1259 | SUBROUTINE mg_gather_noopt( f2, f2_sub ) |
|---|
| 1260 | |
|---|
| 1261 | USE cpulog, & |
|---|
| 1262 | ONLY: cpu_log, log_point_s |
|---|
| 1263 | |
|---|
| 1264 | USE indices, & |
|---|
| 1265 | ONLY: mg_loc_ind, nxl_mg, nxr_mg, nys_mg, nyn_mg, nzb, nzt_mg |
|---|
| 1266 | |
|---|
| 1267 | USE kinds |
|---|
| 1268 | |
|---|
| 1269 | USE pegrid |
|---|
| 1270 | |
|---|
| 1271 | IMPLICIT NONE |
|---|
| 1272 | |
|---|
| 1273 | INTEGER(iwp) :: i !< |
|---|
| 1274 | INTEGER(iwp) :: il !< |
|---|
| 1275 | INTEGER(iwp) :: ir !< |
|---|
| 1276 | INTEGER(iwp) :: j !< |
|---|
| 1277 | INTEGER(iwp) :: jn !< |
|---|
| 1278 | INTEGER(iwp) :: js !< |
|---|
| 1279 | INTEGER(iwp) :: k !< |
|---|
| 1280 | INTEGER(iwp) :: nwords !< |
|---|
| 1281 | |
|---|
| 1282 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
|---|
| 1283 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
|---|
| 1284 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: f2 !< |
|---|
| 1285 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
|---|
| 1286 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
|---|
| 1287 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: f2_l !< |
|---|
| 1288 | |
|---|
| 1289 | REAL(wp), DIMENSION(nzb:mg_loc_ind(5,myid)+1, & |
|---|
| 1290 | mg_loc_ind(3,myid)-1:mg_loc_ind(4,myid)+1, & |
|---|
| 1291 | mg_loc_ind(1,myid)-1:mg_loc_ind(2,myid)+1) :: f2_sub !< |
|---|
| 1292 | |
|---|
| 1293 | |
|---|
| 1294 | #if defined( __parallel ) |
|---|
| 1295 | CALL cpu_log( log_point_s(34), 'mg_gather_noopt', 'start' ) |
|---|
| 1296 | |
|---|
| 1297 | f2_l = 0.0_wp |
|---|
| 1298 | |
|---|
| 1299 | ! |
|---|
| 1300 | !-- Store the local subdomain array on the total array |
|---|
| 1301 | js = mg_loc_ind(3,myid) |
|---|
| 1302 | IF ( south_border_pe ) js = js - 1 |
|---|
| 1303 | jn = mg_loc_ind(4,myid) |
|---|
| 1304 | IF ( north_border_pe ) jn = jn + 1 |
|---|
| 1305 | il = mg_loc_ind(1,myid) |
|---|
| 1306 | IF ( left_border_pe ) il = il - 1 |
|---|
| 1307 | ir = mg_loc_ind(2,myid) |
|---|
| 1308 | IF ( right_border_pe ) ir = ir + 1 |
|---|
| 1309 | DO i = il, ir |
|---|
| 1310 | DO j = js, jn |
|---|
| 1311 | DO k = nzb, nzt_mg(grid_level)+1 |
|---|
| 1312 | f2_l(k,j,i) = f2_sub(k,j,i) |
|---|
| 1313 | ENDDO |
|---|
| 1314 | ENDDO |
|---|
| 1315 | ENDDO |
|---|
| 1316 | |
|---|
| 1317 | ! |
|---|
| 1318 | !-- Find out the number of array elements of the total array |
|---|
| 1319 | nwords = SIZE( f2 ) |
|---|
| 1320 | |
|---|
| 1321 | ! |
|---|
| 1322 | !-- Gather subdomain data from all PEs |
|---|
| 1323 | IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr ) |
|---|
| 1324 | CALL MPI_ALLREDUCE( f2_l(nzb,nys_mg(grid_level)-1,nxl_mg(grid_level)-1),& |
|---|
| 1325 | f2(nzb,nys_mg(grid_level)-1,nxl_mg(grid_level)-1), & |
|---|
| 1326 | nwords, MPI_REAL, MPI_SUM, comm2d, ierr ) |
|---|
| 1327 | |
|---|
| 1328 | CALL cpu_log( log_point_s(34), 'mg_gather_noopt', 'stop' ) |
|---|
| 1329 | #endif |
|---|
| 1330 | |
|---|
| 1331 | END SUBROUTINE mg_gather_noopt |
|---|
| 1332 | |
|---|
| 1333 | |
|---|
| 1334 | |
|---|
| 1335 | !------------------------------------------------------------------------------! |
|---|
| 1336 | ! Description: |
|---|
| 1337 | ! ------------ |
|---|
| 1338 | !> @todo It may be possible to improve the speed of this routine by using |
|---|
| 1339 | !> non-blocking communication |
|---|
| 1340 | !------------------------------------------------------------------------------! |
|---|
| 1341 | SUBROUTINE mg_scatter_noopt( p2, p2_sub ) |
|---|
| 1342 | |
|---|
| 1343 | USE cpulog, & |
|---|
| 1344 | ONLY: cpu_log, log_point_s |
|---|
| 1345 | |
|---|
| 1346 | USE indices, & |
|---|
| 1347 | ONLY: mg_loc_ind, nxl_mg, nxr_mg, nys_mg, nyn_mg, nzb, nzt_mg |
|---|
| 1348 | |
|---|
| 1349 | USE kinds |
|---|
| 1350 | |
|---|
| 1351 | USE pegrid |
|---|
| 1352 | |
|---|
| 1353 | IMPLICIT NONE |
|---|
| 1354 | |
|---|
| 1355 | INTEGER(iwp) :: nwords !< |
|---|
| 1356 | |
|---|
| 1357 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level-1)+1, & |
|---|
| 1358 | nys_mg(grid_level-1)-1:nyn_mg(grid_level-1)+1, & |
|---|
| 1359 | nxl_mg(grid_level-1)-1:nxr_mg(grid_level-1)+1) :: p2 !< |
|---|
| 1360 | |
|---|
| 1361 | REAL(wp), DIMENSION(nzb:mg_loc_ind(5,myid)+1, & |
|---|
| 1362 | mg_loc_ind(3,myid)-1:mg_loc_ind(4,myid)+1, & |
|---|
| 1363 | mg_loc_ind(1,myid)-1:mg_loc_ind(2,myid)+1) :: p2_sub !< |
|---|
| 1364 | |
|---|
| 1365 | ! |
|---|
| 1366 | !-- Find out the number of array elements of the subdomain array |
|---|
| 1367 | nwords = SIZE( p2_sub ) |
|---|
| 1368 | |
|---|
| 1369 | #if defined( __parallel ) |
|---|
| 1370 | CALL cpu_log( log_point_s(35), 'mg_scatter_noopt', 'start' ) |
|---|
| 1371 | |
|---|
| 1372 | p2_sub = p2(:,mg_loc_ind(3,myid)-1:mg_loc_ind(4,myid)+1, & |
|---|
| 1373 | mg_loc_ind(1,myid)-1:mg_loc_ind(2,myid)+1) |
|---|
| 1374 | |
|---|
| 1375 | CALL cpu_log( log_point_s(35), 'mg_scatter_noopt', 'stop' ) |
|---|
| 1376 | #endif |
|---|
| 1377 | |
|---|
| 1378 | END SUBROUTINE mg_scatter_noopt |
|---|
| 1379 | |
|---|
| 1380 | |
|---|
| 1381 | !------------------------------------------------------------------------------! |
|---|
| 1382 | ! Description: |
|---|
| 1383 | ! ------------ |
|---|
| 1384 | !> This is where the multigrid technique takes place. V- and W- Cycle are |
|---|
| 1385 | !> implemented and steered by the parameter "gamma". Parameter "nue" determines |
|---|
| 1386 | !> the convergence of the multigrid iterative solution. There are nue times |
|---|
| 1387 | !> RB-GS iterations. It should be set to "1" or "2", considering the time effort |
|---|
| 1388 | !> one would like to invest. Last choice shows a very good converging factor, |
|---|
| 1389 | !> but leads to an increase in computing time. |
|---|
| 1390 | !------------------------------------------------------------------------------! |
|---|
| 1391 | RECURSIVE SUBROUTINE next_mg_level_noopt( f_mg, p_mg, p3, r ) |
|---|
| 1392 | |
|---|
| 1393 | USE control_parameters, & |
|---|
| 1394 | ONLY: bc_lr_dirrad, bc_lr_raddir, bc_ns_dirrad, bc_ns_raddir, & |
|---|
| 1395 | gamma_mg, grid_level_count, ibc_p_b, ibc_p_t, & |
|---|
| 1396 | maximum_grid_level, & |
|---|
| 1397 | mg_switch_to_pe0_level, mg_switch_to_pe0, nest_domain, ngsrb |
|---|
| 1398 | |
|---|
| 1399 | |
|---|
| 1400 | USE indices, & |
|---|
| 1401 | ONLY: mg_loc_ind, nxl, nxl_mg, nxr, nxr_mg, nys, nys_mg, nyn, & |
|---|
| 1402 | nyn_mg, nzb, nzt, nzt_mg |
|---|
| 1403 | |
|---|
| 1404 | USE kinds |
|---|
| 1405 | |
|---|
| 1406 | USE pegrid |
|---|
| 1407 | |
|---|
| 1408 | IMPLICIT NONE |
|---|
| 1409 | |
|---|
| 1410 | INTEGER(iwp) :: i !< |
|---|
| 1411 | INTEGER(iwp) :: j !< |
|---|
| 1412 | INTEGER(iwp) :: k !< |
|---|
| 1413 | INTEGER(iwp) :: nxl_mg_save !< |
|---|
| 1414 | INTEGER(iwp) :: nxr_mg_save !< |
|---|
| 1415 | INTEGER(iwp) :: nyn_mg_save !< |
|---|
| 1416 | INTEGER(iwp) :: nys_mg_save !< |
|---|
| 1417 | INTEGER(iwp) :: nzt_mg_save !< |
|---|
| 1418 | |
|---|
| 1419 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
|---|
| 1420 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
|---|
| 1421 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: f_mg !< |
|---|
| 1422 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
|---|
| 1423 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
|---|
| 1424 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: p_mg !< |
|---|
| 1425 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
|---|
| 1426 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
|---|
| 1427 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: p3 !< |
|---|
| 1428 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
|---|
| 1429 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
|---|
| 1430 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: r !< |
|---|
| 1431 | |
|---|
| 1432 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level-1)+1, & |
|---|
| 1433 | nys_mg(grid_level-1)-1:nyn_mg(grid_level-1)+1, & |
|---|
| 1434 | nxl_mg(grid_level-1)-1:nxr_mg(grid_level-1)+1) :: f2 !< |
|---|
| 1435 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level-1)+1, & |
|---|
| 1436 | nys_mg(grid_level-1)-1:nyn_mg(grid_level-1)+1, & |
|---|
| 1437 | nxl_mg(grid_level-1)-1:nxr_mg(grid_level-1)+1) :: p2 !< |
|---|
| 1438 | |
|---|
| 1439 | REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: f2_sub !< |
|---|
| 1440 | REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: p2_sub !< |
|---|
| 1441 | |
|---|
| 1442 | ! |
|---|
| 1443 | !-- Restriction to the coarsest grid |
|---|
| 1444 | 10 IF ( grid_level == 1 ) THEN |
|---|
| 1445 | |
|---|
| 1446 | ! |
|---|
| 1447 | !-- Solution on the coarsest grid. Double the number of Gauss-Seidel |
|---|
| 1448 | !-- iterations in order to get a more accurate solution. |
|---|
| 1449 | ngsrb = 2 * ngsrb |
|---|
| 1450 | |
|---|
| 1451 | CALL redblack_noopt( f_mg, p_mg ) |
|---|
| 1452 | |
|---|
| 1453 | ngsrb = ngsrb / 2 |
|---|
| 1454 | |
|---|
| 1455 | |
|---|
| 1456 | ELSEIF ( grid_level /= 1 ) THEN |
|---|
| 1457 | |
|---|
| 1458 | grid_level_count(grid_level) = grid_level_count(grid_level) + 1 |
|---|
| 1459 | |
|---|
| 1460 | ! |
|---|
| 1461 | !-- Solution on the actual grid level |
|---|
| 1462 | CALL redblack_noopt( f_mg, p_mg ) |
|---|
| 1463 | |
|---|
| 1464 | ! |
|---|
| 1465 | !-- Determination of the actual residual |
|---|
| 1466 | CALL resid_noopt( f_mg, p_mg, r ) |
|---|
| 1467 | |
|---|
| 1468 | ! |
|---|
| 1469 | !-- Restriction of the residual (finer grid values!) to the next coarser |
|---|
| 1470 | !-- grid. Therefore, the grid level has to be decremented now. nxl..nzt have |
|---|
| 1471 | !-- to be set to the coarse grid values, because these variables are needed |
|---|
| 1472 | !-- for the exchange of ghost points in routine exchange_horiz |
|---|
| 1473 | grid_level = grid_level - 1 |
|---|
| 1474 | nxl = nxl_mg(grid_level) |
|---|
| 1475 | nys = nys_mg(grid_level) |
|---|
| 1476 | nxr = nxr_mg(grid_level) |
|---|
| 1477 | nyn = nyn_mg(grid_level) |
|---|
| 1478 | nzt = nzt_mg(grid_level) |
|---|
| 1479 | |
|---|
| 1480 | IF ( grid_level == mg_switch_to_pe0_level ) THEN |
|---|
| 1481 | |
|---|
| 1482 | ! |
|---|
| 1483 | !-- From this level on, calculations are done on PE0 only. |
|---|
| 1484 | !-- First, carry out restriction on the subdomain. |
|---|
| 1485 | !-- Therefore, indices of the level have to be changed to subdomain values |
|---|
| 1486 | !-- in between (otherwise, the restrict routine would expect |
|---|
| 1487 | !-- the gathered array) |
|---|
| 1488 | |
|---|
| 1489 | nxl_mg_save = nxl_mg(grid_level) |
|---|
| 1490 | nxr_mg_save = nxr_mg(grid_level) |
|---|
| 1491 | nys_mg_save = nys_mg(grid_level) |
|---|
| 1492 | nyn_mg_save = nyn_mg(grid_level) |
|---|
| 1493 | nzt_mg_save = nzt_mg(grid_level) |
|---|
| 1494 | nxl_mg(grid_level) = mg_loc_ind(1,myid) |
|---|
| 1495 | nxr_mg(grid_level) = mg_loc_ind(2,myid) |
|---|
| 1496 | nys_mg(grid_level) = mg_loc_ind(3,myid) |
|---|
| 1497 | nyn_mg(grid_level) = mg_loc_ind(4,myid) |
|---|
| 1498 | nzt_mg(grid_level) = mg_loc_ind(5,myid) |
|---|
| 1499 | nxl = mg_loc_ind(1,myid) |
|---|
| 1500 | nxr = mg_loc_ind(2,myid) |
|---|
| 1501 | nys = mg_loc_ind(3,myid) |
|---|
| 1502 | nyn = mg_loc_ind(4,myid) |
|---|
| 1503 | nzt = mg_loc_ind(5,myid) |
|---|
| 1504 | |
|---|
| 1505 | ALLOCATE( f2_sub(nzb:nzt_mg(grid_level)+1, & |
|---|
| 1506 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
|---|
| 1507 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) ) |
|---|
| 1508 | |
|---|
| 1509 | CALL restrict_noopt( f2_sub, r ) |
|---|
| 1510 | |
|---|
| 1511 | ! |
|---|
| 1512 | !-- Restore the correct indices of this level |
|---|
| 1513 | nxl_mg(grid_level) = nxl_mg_save |
|---|
| 1514 | nxr_mg(grid_level) = nxr_mg_save |
|---|
| 1515 | nys_mg(grid_level) = nys_mg_save |
|---|
| 1516 | nyn_mg(grid_level) = nyn_mg_save |
|---|
| 1517 | nzt_mg(grid_level) = nzt_mg_save |
|---|
| 1518 | nxl = nxl_mg(grid_level) |
|---|
| 1519 | nxr = nxr_mg(grid_level) |
|---|
| 1520 | nys = nys_mg(grid_level) |
|---|
| 1521 | nyn = nyn_mg(grid_level) |
|---|
| 1522 | nzt = nzt_mg(grid_level) |
|---|
| 1523 | ! |
|---|
| 1524 | !-- Gather all arrays from the subdomains on PE0 |
|---|
| 1525 | CALL mg_gather_noopt( f2, f2_sub ) |
|---|
| 1526 | |
|---|
| 1527 | ! |
|---|
| 1528 | !-- Set switch for routine exchange_horiz, that no ghostpoint exchange |
|---|
| 1529 | !-- has to be carried out from now on |
|---|
| 1530 | mg_switch_to_pe0 = .TRUE. |
|---|
| 1531 | |
|---|
| 1532 | ! |
|---|
| 1533 | !-- In case of non-cyclic lateral boundary conditions, both in- and |
|---|
| 1534 | !-- outflow conditions have to be used on all PEs after the switch, |
|---|
| 1535 | !-- because then they have the total domain. |
|---|
| 1536 | IF ( bc_lr_dirrad ) THEN |
|---|
| 1537 | inflow_l = .TRUE. |
|---|
| 1538 | inflow_r = .FALSE. |
|---|
| 1539 | outflow_l = .FALSE. |
|---|
| 1540 | outflow_r = .TRUE. |
|---|
| 1541 | ELSEIF ( bc_lr_raddir ) THEN |
|---|
| 1542 | inflow_l = .FALSE. |
|---|
| 1543 | inflow_r = .TRUE. |
|---|
| 1544 | outflow_l = .TRUE. |
|---|
| 1545 | outflow_r = .FALSE. |
|---|
| 1546 | ELSEIF ( nest_domain ) THEN |
|---|
| 1547 | nest_bound_l = .TRUE. |
|---|
| 1548 | nest_bound_r = .TRUE. |
|---|
| 1549 | ELSEIF ( forcing ) THEN |
|---|
| 1550 | force_bound_l = .TRUE. |
|---|
| 1551 | force_bound_r = .TRUE. |
|---|
| 1552 | ENDIF |
|---|
| 1553 | |
|---|
| 1554 | IF ( bc_ns_dirrad ) THEN |
|---|
| 1555 | inflow_n = .TRUE. |
|---|
| 1556 | inflow_s = .FALSE. |
|---|
| 1557 | outflow_n = .FALSE. |
|---|
| 1558 | outflow_s = .TRUE. |
|---|
| 1559 | ELSEIF ( bc_ns_raddir ) THEN |
|---|
| 1560 | inflow_n = .FALSE. |
|---|
| 1561 | inflow_s = .TRUE. |
|---|
| 1562 | outflow_n = .TRUE. |
|---|
| 1563 | outflow_s = .FALSE. |
|---|
| 1564 | ELSEIF ( nest_domain ) THEN |
|---|
| 1565 | nest_bound_s = .TRUE. |
|---|
| 1566 | nest_bound_n = .TRUE. |
|---|
| 1567 | ELSEIF ( forcing ) THEN |
|---|
| 1568 | force_bound_s = .TRUE. |
|---|
| 1569 | force_bound_n = .TRUE. |
|---|
| 1570 | ENDIF |
|---|
| 1571 | |
|---|
| 1572 | DEALLOCATE( f2_sub ) |
|---|
| 1573 | |
|---|
| 1574 | ELSE |
|---|
| 1575 | |
|---|
| 1576 | CALL restrict_noopt( f2, r ) |
|---|
| 1577 | |
|---|
| 1578 | ENDIF |
|---|
| 1579 | |
|---|
| 1580 | p2 = 0.0_wp |
|---|
| 1581 | |
|---|
| 1582 | ! |
|---|
| 1583 | !-- Repeat the same procedure till the coarsest grid is reached |
|---|
| 1584 | CALL next_mg_level_noopt( f2, p2, p3, r ) |
|---|
| 1585 | |
|---|
| 1586 | ENDIF |
|---|
| 1587 | |
|---|
| 1588 | ! |
|---|
| 1589 | !-- Now follows the prolongation |
|---|
| 1590 | IF ( grid_level >= 2 ) THEN |
|---|
| 1591 | |
|---|
| 1592 | ! |
|---|
| 1593 | !-- Prolongation of the new residual. The values are transferred |
|---|
| 1594 | !-- from the coarse to the next finer grid. |
|---|
| 1595 | IF ( grid_level == mg_switch_to_pe0_level+1 ) THEN |
|---|
| 1596 | |
|---|
| 1597 | #if defined( __parallel ) |
|---|
| 1598 | ! |
|---|
| 1599 | !-- At this level, the new residual first has to be scattered from |
|---|
| 1600 | !-- PE0 to the other PEs |
|---|
| 1601 | ALLOCATE( p2_sub(nzb:mg_loc_ind(5,myid)+1, & |
|---|
| 1602 | mg_loc_ind(3,myid)-1:mg_loc_ind(4,myid)+1, & |
|---|
| 1603 | mg_loc_ind(1,myid)-1:mg_loc_ind(2,myid)+1) ) |
|---|
| 1604 | |
|---|
| 1605 | CALL mg_scatter_noopt( p2, p2_sub ) |
|---|
| 1606 | |
|---|
| 1607 | ! |
|---|
| 1608 | !-- Therefore, indices of the previous level have to be changed to |
|---|
| 1609 | !-- subdomain values in between (otherwise, the prolong routine would |
|---|
| 1610 | !-- expect the gathered array) |
|---|
| 1611 | nxl_mg_save = nxl_mg(grid_level-1) |
|---|
| 1612 | nxr_mg_save = nxr_mg(grid_level-1) |
|---|
| 1613 | nys_mg_save = nys_mg(grid_level-1) |
|---|
| 1614 | nyn_mg_save = nyn_mg(grid_level-1) |
|---|
| 1615 | nzt_mg_save = nzt_mg(grid_level-1) |
|---|
| 1616 | nxl_mg(grid_level-1) = mg_loc_ind(1,myid) |
|---|
| 1617 | nxr_mg(grid_level-1) = mg_loc_ind(2,myid) |
|---|
| 1618 | nys_mg(grid_level-1) = mg_loc_ind(3,myid) |
|---|
| 1619 | nyn_mg(grid_level-1) = mg_loc_ind(4,myid) |
|---|
| 1620 | nzt_mg(grid_level-1) = mg_loc_ind(5,myid) |
|---|
| 1621 | |
|---|
| 1622 | ! |
|---|
| 1623 | !-- Set switch for routine exchange_horiz, that ghostpoint exchange |
|---|
| 1624 | !-- has to be carried again out from now on |
|---|
| 1625 | mg_switch_to_pe0 = .FALSE. |
|---|
| 1626 | |
|---|
| 1627 | ! |
|---|
| 1628 | !-- For non-cyclic lateral boundary conditions and in case of nesting, |
|---|
| 1629 | !-- restore the in-/outflow conditions. |
|---|
| 1630 | inflow_l = .FALSE.; inflow_r = .FALSE. |
|---|
| 1631 | inflow_n = .FALSE.; inflow_s = .FALSE. |
|---|
| 1632 | outflow_l = .FALSE.; outflow_r = .FALSE. |
|---|
| 1633 | outflow_n = .FALSE.; outflow_s = .FALSE. |
|---|
| 1634 | ! |
|---|
| 1635 | !-- In case of nesting, restore lateral boundary conditions |
|---|
| 1636 | IF ( nest_domain ) THEN |
|---|
| 1637 | nest_bound_l = .FALSE. |
|---|
| 1638 | nest_bound_r = .FALSE. |
|---|
| 1639 | nest_bound_s = .FALSE. |
|---|
| 1640 | nest_bound_n = .FALSE. |
|---|
| 1641 | ENDIF |
|---|
| 1642 | IF ( forcing ) THEN |
|---|
| 1643 | force_bound_l = .FALSE. |
|---|
| 1644 | force_bound_r = .FALSE. |
|---|
| 1645 | force_bound_s = .FALSE. |
|---|
| 1646 | force_bound_n = .FALSE. |
|---|
| 1647 | ENDIF |
|---|
| 1648 | |
|---|
| 1649 | IF ( pleft == MPI_PROC_NULL ) THEN |
|---|
| 1650 | IF ( bc_lr_dirrad ) THEN |
|---|
| 1651 | inflow_l = .TRUE. |
|---|
| 1652 | ELSEIF ( bc_lr_raddir ) THEN |
|---|
| 1653 | outflow_l = .TRUE. |
|---|
| 1654 | ELSEIF ( nest_domain ) THEN |
|---|
| 1655 | nest_bound_l = .TRUE. |
|---|
| 1656 | ELSEIF ( forcing ) THEN |
|---|
| 1657 | force_bound_l = .TRUE. |
|---|
| 1658 | ENDIF |
|---|
| 1659 | ENDIF |
|---|
| 1660 | |
|---|
| 1661 | IF ( pright == MPI_PROC_NULL ) THEN |
|---|
| 1662 | IF ( bc_lr_dirrad ) THEN |
|---|
| 1663 | outflow_r = .TRUE. |
|---|
| 1664 | ELSEIF ( bc_lr_raddir ) THEN |
|---|
| 1665 | inflow_r = .TRUE. |
|---|
| 1666 | ELSEIF ( nest_domain ) THEN |
|---|
| 1667 | nest_bound_r = .TRUE. |
|---|
| 1668 | ELSEIF ( forcing ) THEN |
|---|
| 1669 | force_bound_r = .TRUE. |
|---|
| 1670 | ENDIF |
|---|
| 1671 | ENDIF |
|---|
| 1672 | |
|---|
| 1673 | IF ( psouth == MPI_PROC_NULL ) THEN |
|---|
| 1674 | IF ( bc_ns_dirrad ) THEN |
|---|
| 1675 | outflow_s = .TRUE. |
|---|
| 1676 | ELSEIF ( bc_ns_raddir ) THEN |
|---|
| 1677 | inflow_s = .TRUE. |
|---|
| 1678 | ELSEIF ( nest_domain ) THEN |
|---|
| 1679 | nest_bound_s = .TRUE. |
|---|
| 1680 | ELSEIF ( forcing ) THEN |
|---|
| 1681 | force_bound_s = .TRUE. |
|---|
| 1682 | ENDIF |
|---|
| 1683 | ENDIF |
|---|
| 1684 | |
|---|
| 1685 | IF ( pnorth == MPI_PROC_NULL ) THEN |
|---|
| 1686 | IF ( bc_ns_dirrad ) THEN |
|---|
| 1687 | inflow_n = .TRUE. |
|---|
| 1688 | ELSEIF ( bc_ns_raddir ) THEN |
|---|
| 1689 | outflow_n = .TRUE. |
|---|
| 1690 | ELSEIF ( nest_domain ) THEN |
|---|
| 1691 | nest_bound_n = .TRUE. |
|---|
| 1692 | ELSEIF ( forcing ) THEN |
|---|
| 1693 | force_bound_n = .TRUE. |
|---|
| 1694 | ENDIF |
|---|
| 1695 | ENDIF |
|---|
| 1696 | |
|---|
| 1697 | CALL prolong_noopt( p2_sub, p3 ) |
|---|
| 1698 | |
|---|
| 1699 | ! |
|---|
| 1700 | !-- Restore the correct indices of the previous level |
|---|
| 1701 | nxl_mg(grid_level-1) = nxl_mg_save |
|---|
| 1702 | nxr_mg(grid_level-1) = nxr_mg_save |
|---|
| 1703 | nys_mg(grid_level-1) = nys_mg_save |
|---|
| 1704 | nyn_mg(grid_level-1) = nyn_mg_save |
|---|
| 1705 | nzt_mg(grid_level-1) = nzt_mg_save |
|---|
| 1706 | |
|---|
| 1707 | DEALLOCATE( p2_sub ) |
|---|
| 1708 | #endif |
|---|
| 1709 | |
|---|
| 1710 | ELSE |
|---|
| 1711 | |
|---|
| 1712 | CALL prolong_noopt( p2, p3 ) |
|---|
| 1713 | |
|---|
| 1714 | ENDIF |
|---|
| 1715 | |
|---|
| 1716 | ! |
|---|
| 1717 | !-- Computation of the new pressure correction. Therefore, |
|---|
| 1718 | !-- values from prior grids are added up automatically stage by stage. |
|---|
| 1719 | DO i = nxl_mg(grid_level)-1, nxr_mg(grid_level)+1 |
|---|
| 1720 | DO j = nys_mg(grid_level)-1, nyn_mg(grid_level)+1 |
|---|
| 1721 | DO k = nzb, nzt_mg(grid_level)+1 |
|---|
| 1722 | p_mg(k,j,i) = p_mg(k,j,i) + p3(k,j,i) |
|---|
| 1723 | ENDDO |
|---|
| 1724 | ENDDO |
|---|
| 1725 | ENDDO |
|---|
| 1726 | |
|---|
| 1727 | ! |
|---|
| 1728 | !-- Relaxation of the new solution |
|---|
| 1729 | CALL redblack_noopt( f_mg, p_mg ) |
|---|
| 1730 | |
|---|
| 1731 | ENDIF |
|---|
| 1732 | |
|---|
| 1733 | |
|---|
| 1734 | ! |
|---|
| 1735 | !-- The following few lines serve the steering of the multigrid scheme |
|---|
| 1736 | IF ( grid_level == maximum_grid_level ) THEN |
|---|
| 1737 | |
|---|
| 1738 | GOTO 20 |
|---|
| 1739 | |
|---|
| 1740 | ELSEIF ( grid_level /= maximum_grid_level .AND. grid_level /= 1 .AND. & |
|---|
| 1741 | grid_level_count(grid_level) /= gamma_mg ) THEN |
|---|
| 1742 | |
|---|
| 1743 | GOTO 10 |
|---|
| 1744 | |
|---|
| 1745 | ENDIF |
|---|
| 1746 | |
|---|
| 1747 | ! |
|---|
| 1748 | !-- Reset counter for the next call of poismg_noopt |
|---|
| 1749 | grid_level_count(grid_level) = 0 |
|---|
| 1750 | |
|---|
| 1751 | ! |
|---|
| 1752 | !-- Continue with the next finer level. nxl..nzt have to be |
|---|
| 1753 | !-- set to the finer grid values, because these variables are needed for the |
|---|
| 1754 | !-- exchange of ghost points in routine exchange_horiz |
|---|
| 1755 | grid_level = grid_level + 1 |
|---|
| 1756 | nxl = nxl_mg(grid_level) |
|---|
| 1757 | nxr = nxr_mg(grid_level) |
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| 1758 | nys = nys_mg(grid_level) |
|---|
| 1759 | nyn = nyn_mg(grid_level) |
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| 1760 | nzt = nzt_mg(grid_level) |
|---|
| 1761 | |
|---|
| 1762 | 20 CONTINUE |
|---|
| 1763 | |
|---|
| 1764 | END SUBROUTINE next_mg_level_noopt |
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| 1765 | |
|---|
| 1766 | |
|---|
| 1767 | |
|---|
| 1768 | SUBROUTINE poismg_noopt_init |
|---|
| 1769 | |
|---|
| 1770 | USE control_parameters, & |
|---|
| 1771 | ONLY: bc_lr_cyc, bc_ns_cyc, masking_method, maximum_grid_level |
|---|
| 1772 | |
|---|
| 1773 | USE indices, & |
|---|
| 1774 | ONLY: flags, nxl_mg, nxr_mg, nyn_mg, nys_mg, nzb, nzt_mg, & |
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| 1775 | wall_flags_0, wall_flags_1, & |
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| 1776 | wall_flags_10, wall_flags_2, wall_flags_3, wall_flags_4, & |
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| 1777 | wall_flags_5, wall_flags_6, wall_flags_7, wall_flags_8, & |
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| 1778 | wall_flags_9 |
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| 1779 | |
|---|
| 1780 | IMPLICIT NONE |
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| 1781 | |
|---|
| 1782 | INTEGER(iwp) :: i !< index variable along x |
|---|
| 1783 | INTEGER(iwp) :: inc !< incremental parameter for coarsening grid level |
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| 1784 | INTEGER(iwp) :: j !< index variable along y |
|---|
| 1785 | INTEGER(iwp) :: k !< index variable along z |
|---|
| 1786 | INTEGER(iwp) :: l !< loop variable indication current grid level |
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| 1787 | INTEGER(iwp) :: nxl_l !< index of left PE boundary for multigrid level |
|---|
| 1788 | INTEGER(iwp) :: nxr_l !< index of right PE boundary for multigrid level |
|---|
| 1789 | INTEGER(iwp) :: nyn_l !< index of north PE boundary for multigrid level |
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| 1790 | INTEGER(iwp) :: nys_l !< index of south PE boundary for multigrid level |
|---|
| 1791 | INTEGER(iwp) :: nzt_l !< index of top PE boundary for multigrid level |
|---|
| 1792 | |
|---|
| 1793 | INTEGER(iwp), DIMENSION(:,:,:), ALLOCATABLE :: topo_tmp |
|---|
| 1794 | ! |
|---|
| 1795 | !-- Gridpoint increment of the current level. |
|---|
| 1796 | inc = 1 |
|---|
| 1797 | DO l = maximum_grid_level, 1 , -1 |
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| 1798 | ! |
|---|
| 1799 | !-- Set grid_level as it is required for exchange_horiz_2d_int |
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| 1800 | grid_level = l |
|---|
| 1801 | |
|---|
| 1802 | nxl_l = nxl_mg(l) |
|---|
| 1803 | nxr_l = nxr_mg(l) |
|---|
| 1804 | nys_l = nys_mg(l) |
|---|
| 1805 | nyn_l = nyn_mg(l) |
|---|
| 1806 | nzt_l = nzt_mg(l) |
|---|
| 1807 | ! |
|---|
| 1808 | !-- Assign the flag level to be calculated |
|---|
| 1809 | SELECT CASE ( l ) |
|---|
| 1810 | CASE ( 1 ) |
|---|
| 1811 | flags => wall_flags_1 |
|---|
| 1812 | CASE ( 2 ) |
|---|
| 1813 | flags => wall_flags_2 |
|---|
| 1814 | CASE ( 3 ) |
|---|
| 1815 | flags => wall_flags_3 |
|---|
| 1816 | CASE ( 4 ) |
|---|
| 1817 | flags => wall_flags_4 |
|---|
| 1818 | CASE ( 5 ) |
|---|
| 1819 | flags => wall_flags_5 |
|---|
| 1820 | CASE ( 6 ) |
|---|
| 1821 | flags => wall_flags_6 |
|---|
| 1822 | CASE ( 7 ) |
|---|
| 1823 | flags => wall_flags_7 |
|---|
| 1824 | CASE ( 8 ) |
|---|
| 1825 | flags => wall_flags_8 |
|---|
| 1826 | CASE ( 9 ) |
|---|
| 1827 | flags => wall_flags_9 |
|---|
| 1828 | CASE ( 10 ) |
|---|
| 1829 | flags => wall_flags_10 |
|---|
| 1830 | END SELECT |
|---|
| 1831 | |
|---|
| 1832 | ! |
|---|
| 1833 | !-- Depending on the grid level, set the respective bits in case of |
|---|
| 1834 | !-- neighbouring walls |
|---|
| 1835 | !-- Bit 0: wall to the bottom |
|---|
| 1836 | !-- Bit 1: wall to the top (not realized in remaining PALM code so far) |
|---|
| 1837 | !-- Bit 2: wall to the south |
|---|
| 1838 | !-- Bit 3: wall to the north |
|---|
| 1839 | !-- Bit 4: wall to the left |
|---|
| 1840 | !-- Bit 5: wall to the right |
|---|
| 1841 | !-- Bit 6: inside building |
|---|
| 1842 | |
|---|
| 1843 | flags = 0 |
|---|
| 1844 | ! |
|---|
| 1845 | !-- In case of masking method, flags are not set and multigrid method |
|---|
| 1846 | !-- works like FFT-solver |
|---|
| 1847 | IF ( .NOT. masking_method ) THEN |
|---|
| 1848 | |
|---|
| 1849 | ! |
|---|
| 1850 | !-- Allocate temporary array for topography heights on coarser grid |
|---|
| 1851 | !-- level. Please note, 2 ghoist points are required, in order to |
|---|
| 1852 | !-- calculate flags() on the interior ghost point. |
|---|
| 1853 | ALLOCATE( topo_tmp(nzb:nzt_l+1,nys_l-1:nyn_l+1,nxl_l-1:nxr_l+1) ) |
|---|
| 1854 | topo_tmp = 0 |
|---|
| 1855 | |
|---|
| 1856 | DO i = nxl_l, nxr_l |
|---|
| 1857 | DO j = nys_l, nyn_l |
|---|
| 1858 | DO k = nzb, nzt_l |
|---|
| 1859 | topo_tmp(k,j,i) = wall_flags_0(k*inc,j*inc,i*inc) |
|---|
| 1860 | ENDDO |
|---|
| 1861 | ENDDO |
|---|
| 1862 | ENDDO |
|---|
| 1863 | topo_tmp(nzt_l+1,:,:) = topo_tmp(nzt_l,:,:) |
|---|
| 1864 | ! |
|---|
| 1865 | !-- Exchange ghost points on respective multigrid level. 2 ghost points |
|---|
| 1866 | !-- are required, in order to calculate flags on |
|---|
| 1867 | !-- nys_l-1 / nyn_l+1 / nxl_l-1 / nxr_l+1. |
|---|
| 1868 | CALL exchange_horiz_int( topo_tmp, nys_l, nyn_l, nxl_l, nxr_l, nzt_l, 1 ) |
|---|
| 1869 | ! |
|---|
| 1870 | !-- Set non-cyclic boundary conditions on respective multigrid level |
|---|
| 1871 | IF ( .NOT. bc_ns_cyc ) THEN |
|---|
| 1872 | IF ( inflow_s .OR. outflow_s .OR. nest_bound_s .OR. & |
|---|
| 1873 | force_bound_s ) THEN |
|---|
| 1874 | ! topo_tmp(:,-2,:) = topo_tmp(:,0,:) |
|---|
| 1875 | topo_tmp(:,-1,:) = topo_tmp(:,0,:) |
|---|
| 1876 | ENDIF |
|---|
| 1877 | IF ( inflow_n .OR. outflow_n .OR. nest_bound_n .OR. & |
|---|
| 1878 | force_bound_n ) THEN |
|---|
| 1879 | ! topo_tmp(:,nyn_l+2,:) = topo_tmp(:,nyn_l,:) |
|---|
| 1880 | topo_tmp(:,nyn_l+1,:) = topo_tmp(:,nyn_l,:) |
|---|
| 1881 | ENDIF |
|---|
| 1882 | ENDIF |
|---|
| 1883 | IF ( .NOT. bc_lr_cyc ) THEN |
|---|
| 1884 | IF ( inflow_l .OR. outflow_l .OR. nest_bound_l .OR. & |
|---|
| 1885 | force_bound_l ) THEN |
|---|
| 1886 | ! topo_tmp(:,:,-2) = topo_tmp(:,:,0) |
|---|
| 1887 | topo_tmp(:,:,-1) = topo_tmp(:,:,0) |
|---|
| 1888 | ENDIF |
|---|
| 1889 | IF ( inflow_r .OR. outflow_r .OR. nest_bound_r .OR. & |
|---|
| 1890 | force_bound_r ) THEN |
|---|
| 1891 | ! topo_tmp(:,:,nxr_l+2) = topo_tmp(:,:,nxr_l) |
|---|
| 1892 | topo_tmp(:,:,nxr_l+1) = topo_tmp(:,:,nxr_l) |
|---|
| 1893 | ENDIF |
|---|
| 1894 | ENDIF |
|---|
| 1895 | |
|---|
| 1896 | DO i = nxl_l, nxr_l |
|---|
| 1897 | DO j = nys_l, nyn_l |
|---|
| 1898 | DO k = nzb, nzt_l |
|---|
| 1899 | ! |
|---|
| 1900 | !-- Inside/outside building (inside building does not need |
|---|
| 1901 | !-- further tests for walls) |
|---|
| 1902 | IF ( .NOT. BTEST( topo_tmp(k,j,i), 0 ) ) THEN |
|---|
| 1903 | |
|---|
| 1904 | flags(k,j,i) = IBSET( flags(k,j,i), 6 ) |
|---|
| 1905 | |
|---|
| 1906 | ELSE |
|---|
| 1907 | ! |
|---|
| 1908 | !-- Bottom wall |
|---|
| 1909 | IF ( .NOT. BTEST( topo_tmp(k-1,j,i), 0 ) ) THEN |
|---|
| 1910 | flags(k,j,i) = IBSET( flags(k,j,i), 0 ) |
|---|
| 1911 | ENDIF |
|---|
| 1912 | ! |
|---|
| 1913 | !-- South wall |
|---|
| 1914 | IF ( .NOT. BTEST( topo_tmp(k,j-1,i), 0 ) ) THEN |
|---|
| 1915 | flags(k,j,i) = IBSET( flags(k,j,i), 2 ) |
|---|
| 1916 | ENDIF |
|---|
| 1917 | ! |
|---|
| 1918 | !-- North wall |
|---|
| 1919 | IF ( .NOT. BTEST( topo_tmp(k,j+1,i), 0 ) ) THEN |
|---|
| 1920 | flags(k,j,i) = IBSET( flags(k,j,i), 3 ) |
|---|
| 1921 | ENDIF |
|---|
| 1922 | ! |
|---|
| 1923 | !-- Left wall |
|---|
| 1924 | IF ( .NOT. BTEST( topo_tmp(k,j,i-1), 0 ) ) THEN |
|---|
| 1925 | flags(k,j,i) = IBSET( flags(k,j,i), 4 ) |
|---|
| 1926 | ENDIF |
|---|
| 1927 | ! |
|---|
| 1928 | !-- Right wall |
|---|
| 1929 | IF ( .NOT. BTEST( topo_tmp(k,j,i+1), 0 ) ) THEN |
|---|
| 1930 | flags(k,j,i) = IBSET( flags(k,j,i), 5 ) |
|---|
| 1931 | ENDIF |
|---|
| 1932 | ! |
|---|
| 1933 | !-- Top wall |
|---|
| 1934 | IF ( .NOT. BTEST( topo_tmp(k+1,j,i), 0 ) ) THEN |
|---|
| 1935 | flags(k,j,i) = IBSET( flags(k,j,i), 7 ) |
|---|
| 1936 | ENDIF |
|---|
| 1937 | |
|---|
| 1938 | ENDIF |
|---|
| 1939 | |
|---|
| 1940 | ENDDO |
|---|
| 1941 | ENDDO |
|---|
| 1942 | ENDDO |
|---|
| 1943 | flags(nzt_l+1,:,:) = flags(nzt_l,:,:) |
|---|
| 1944 | |
|---|
| 1945 | CALL exchange_horiz_int( flags, nys_l, nyn_l, nxl_l, nxr_l, nzt_l, 1 ) |
|---|
| 1946 | |
|---|
| 1947 | DEALLOCATE( topo_tmp ) |
|---|
| 1948 | |
|---|
| 1949 | ENDIF |
|---|
| 1950 | |
|---|
| 1951 | inc = inc * 2 |
|---|
| 1952 | |
|---|
| 1953 | ENDDO |
|---|
| 1954 | ! |
|---|
| 1955 | !-- Reset grid_level to "normal" grid |
|---|
| 1956 | grid_level = 0 |
|---|
| 1957 | |
|---|
| 1958 | END SUBROUTINE poismg_noopt_init |
|---|
| 1959 | |
|---|
| 1960 | END MODULE poismg_noopt_mod |
|---|
