[1931] | 1 | !> @file poismg_noopt.f90 |
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[2000] | 2 | !------------------------------------------------------------------------------! |
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[1036] | 3 | ! This file is part of PALM. |
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| 4 | ! |
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[2000] | 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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[1036] | 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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[2101] | 17 | ! Copyright 1997-2017 Leibniz Universitaet Hannover |
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[2000] | 18 | !------------------------------------------------------------------------------! |
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[1036] | 19 | ! |
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[257] | 20 | ! Current revisions: |
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[1] | 21 | ! ----------------- |
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[1354] | 22 | ! |
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[2233] | 23 | ! |
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[1321] | 24 | ! Former revisions: |
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| 25 | ! ----------------- |
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| 26 | ! $Id: poismg_noopt.f90 2233 2017-05-30 18:08:54Z sward $ |
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| 27 | ! |
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[2233] | 28 | ! 2232 2017-05-30 17:47:52Z suehring |
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| 29 | ! Bugfixes OpenMP |
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| 30 | ! |
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[2038] | 31 | ! 2037 2016-10-26 11:15:40Z knoop |
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| 32 | ! Anelastic approximation implemented |
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| 33 | ! |
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[2022] | 34 | ! 2021 2016-10-07 14:08:57Z suehring |
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| 35 | ! Bugfix: restore nest_bound_(l/r/s/n) in case of mg_switch_to_pe0 |
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| 36 | ! |
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[2001] | 37 | ! 2000 2016-08-20 18:09:15Z knoop |
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| 38 | ! Forced header and separation lines into 80 columns |
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| 39 | ! |
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[1935] | 40 | ! 1934 2016-06-13 09:46:57Z hellstea |
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| 41 | ! Rename subroutines and cpu-measure log points to indicate _noopt version |
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| 42 | ! |
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[1763] | 43 | ! 1762 2016-02-25 12:31:13Z hellstea |
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| 44 | ! Introduction of nested domain feature |
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| 45 | ! |
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[1683] | 46 | ! 1682 2015-10-07 23:56:08Z knoop |
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| 47 | ! Code annotations made doxygen readable |
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| 48 | ! |
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[1354] | 49 | ! 1353 2014-04-08 15:21:23Z heinze |
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| 50 | ! REAL constants provided with KIND-attribute |
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| 51 | ! |
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[1323] | 52 | ! 1322 2014-03-20 16:38:49Z raasch |
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| 53 | ! REAL constants defined as wp-kind |
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| 54 | ! |
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[1321] | 55 | ! 1320 2014-03-20 08:40:49Z raasch |
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[1320] | 56 | ! ONLY-attribute added to USE-statements, |
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| 57 | ! kind-parameters added to all INTEGER and REAL declaration statements, |
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| 58 | ! kinds are defined in new module kinds, |
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| 59 | ! old module precision_kind is removed, |
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| 60 | ! revision history before 2012 removed, |
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| 61 | ! comment fields (!:) to be used for variable explanations added to |
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| 62 | ! all variable declaration statements |
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[708] | 63 | ! |
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[1319] | 64 | ! 1318 2014-03-17 13:35:16Z raasch |
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| 65 | ! module interfaces removed |
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| 66 | ! |
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[1160] | 67 | ! 1159 2013-05-21 11:58:22Z fricke |
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| 68 | ! bc_lr/ns_dirneu/neudir removed |
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| 69 | ! |
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[1093] | 70 | ! 1092 2013-02-02 11:24:22Z raasch |
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| 71 | ! unused variables removed |
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| 72 | ! |
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[1057] | 73 | ! 1056 2012-11-16 15:28:04Z raasch |
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| 74 | ! Bugfix: all ghost points have to be used for allocating p3 |
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| 75 | ! arrays p2, f2, and f2_l changed from allocatable to automatic |
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| 76 | ! |
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[1037] | 77 | ! 1036 2012-10-22 13:43:42Z raasch |
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| 78 | ! code put under GPL (PALM 3.9) |
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| 79 | ! |
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[997] | 80 | ! 996 2012-09-07 10:41:47Z raasch |
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| 81 | ! little reformatting |
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| 82 | ! |
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[979] | 83 | ! 978 2012-08-09 08:28:32Z fricke |
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| 84 | ! bc_lr/ns_dirneu/neudir added |
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| 85 | ! |
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[881] | 86 | ! 880 2012-04-13 06:28:59Z raasch |
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| 87 | ! Bugfix: preprocessor statements for parallel execution added |
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| 88 | ! |
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[779] | 89 | ! 778 2011-11-07 14:18:25Z fricke |
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| 90 | ! Allocation of p3 changes when multigrid is used and the collected field on PE0 |
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| 91 | ! has more grid points than the subdomain of an PE. |
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| 92 | ! |
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[708] | 93 | ! 707 2011-03-29 11:39:40Z raasch |
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[707] | 94 | ! p_loc is used instead of p in the main routine (poismg). |
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| 95 | ! On coarse grid levels, gathered data are identically processed on all PEs |
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| 96 | ! (before, on PE0 only), so that the subsequent scattering of data is not |
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| 97 | ! neccessary any more. |
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| 98 | ! bc_lr/ns replaced by bc_lr/ns_cyc/dirrad/raddir |
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| 99 | ! Bugfix: bottom (nzb) and top (nzt+1) boundary conditions set in routines |
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| 100 | ! resid and restrict. They were missed before which may have led to |
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| 101 | ! unpredictable results. |
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[1] | 102 | ! |
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[668] | 103 | ! 667 2010-12-23 12:06:00Z suehring/gryschka |
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| 104 | ! Calls of exchange_horiz are modified. |
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| 105 | ! |
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[623] | 106 | ! 622 2010-12-10 08:08:13Z raasch |
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| 107 | ! optional barriers included in order to speed up collective operations |
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| 108 | ! |
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[392] | 109 | ! 257 2009-03-11 15:17:42Z heinze |
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| 110 | ! Output of messages replaced by message handling routine. |
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| 111 | ! |
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[198] | 112 | ! 181 2008-07-30 07:07:47Z raasch |
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| 113 | ! Bugfix: grid_level+1 has to be used in restrict for flags-array |
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| 114 | ! |
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[139] | 115 | ! 114 2007-10-10 00:03:15Z raasch |
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| 116 | ! Boundary conditions at walls are implicitly set using flag arrays. Only |
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| 117 | ! Neumann BC is allowed. Upper walls are still not realized. |
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| 118 | ! Bottom and top BCs for array f_mg in restrict removed because boundary |
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| 119 | ! values are not needed (right hand side of SOR iteration). |
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| 120 | ! |
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[77] | 121 | ! 75 2007-03-22 09:54:05Z raasch |
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| 122 | ! 2nd+3rd argument removed from exchange horiz |
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| 123 | ! |
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[3] | 124 | ! RCS Log replace by Id keyword, revision history cleaned up |
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| 125 | ! |
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[1] | 126 | ! Revision 1.6 2005/03/26 20:55:54 raasch |
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| 127 | ! Implementation of non-cyclic (Neumann) horizontal boundary conditions, |
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| 128 | ! routine prolong simplified (one call of exchange_horiz spared) |
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| 129 | ! |
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| 130 | ! Revision 1.1 2001/07/20 13:10:51 raasch |
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| 131 | ! Initial revision |
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| 132 | ! |
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| 133 | ! |
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| 134 | ! Description: |
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| 135 | ! ------------ |
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[1682] | 136 | !> Solves the Poisson equation for the perturbation pressure with a multigrid |
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| 137 | !> V- or W-Cycle scheme. |
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| 138 | !> |
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| 139 | !> This multigrid method was originally developed for PALM by Joerg Uhlenbrock, |
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| 140 | !> September 2000 - July 2001. |
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| 141 | !> |
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| 142 | !> @attention Loop unrolling and cache optimization in SOR-Red/Black method |
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| 143 | !> still does not give the expected speedup! |
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| 144 | !> |
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| 145 | !> @todo Further work required. |
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[1] | 146 | !------------------------------------------------------------------------------! |
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[1931] | 147 | SUBROUTINE poismg_noopt( r ) |
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[1682] | 148 | |
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[1] | 149 | |
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[1320] | 150 | USE arrays_3d, & |
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| 151 | ONLY: d, p_loc |
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| 152 | |
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| 153 | USE control_parameters, & |
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| 154 | ONLY: gathered_size, grid_level, grid_level_count, & |
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| 155 | maximum_grid_level, message_string, mgcycles, mg_cycles, & |
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| 156 | mg_switch_to_pe0_level, residual_limit, subdomain_size |
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| 157 | |
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| 158 | USE cpulog, & |
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| 159 | ONLY: cpu_log, log_point_s |
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| 160 | |
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| 161 | USE indices, & |
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| 162 | ONLY: nxl, nxlg, nxl_mg, nxr, nxrg, nxr_mg, nys, nysg, nys_mg, nyn, & |
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| 163 | nyng, nyn_mg, nzb, nzt, nzt_mg |
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| 164 | |
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| 165 | USE kinds |
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| 166 | |
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[1] | 167 | USE pegrid |
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| 168 | |
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| 169 | IMPLICIT NONE |
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| 170 | |
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[1682] | 171 | REAL(wp) :: maxerror !< |
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| 172 | REAL(wp) :: maximum_mgcycles !< |
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| 173 | REAL(wp) :: residual_norm !< |
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[1] | 174 | |
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[1682] | 175 | REAL(wp), DIMENSION(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) :: r !< |
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[1] | 176 | |
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[1682] | 177 | REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: p3 !< |
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[1] | 178 | |
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| 179 | |
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[1931] | 180 | CALL cpu_log( log_point_s(29), 'poismg_noopt', 'start' ) |
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[1] | 181 | ! |
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| 182 | !-- Initialize arrays and variables used in this subroutine |
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| 183 | |
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[879] | 184 | !-- If the number of grid points of the gathered grid, which is collected |
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| 185 | !-- on PE0, is larger than the number of grid points of an PE, than array |
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| 186 | !-- p3 will be enlarged. |
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[778] | 187 | IF ( gathered_size > subdomain_size ) THEN |
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[879] | 188 | ALLOCATE( p3(nzb:nzt_mg(mg_switch_to_pe0_level)+1,nys_mg( & |
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| 189 | mg_switch_to_pe0_level)-1:nyn_mg(mg_switch_to_pe0_level)+1,& |
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| 190 | nxl_mg(mg_switch_to_pe0_level)-1:nxr_mg( & |
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[778] | 191 | mg_switch_to_pe0_level)+1) ) |
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| 192 | ELSE |
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[1056] | 193 | ALLOCATE ( p3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) ) |
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[778] | 194 | ENDIF |
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[1056] | 195 | |
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[1353] | 196 | p3 = 0.0_wp |
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[879] | 197 | |
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[1] | 198 | ! |
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[707] | 199 | !-- Ghost boundaries have to be added to divergence array. |
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| 200 | !-- Exchange routine needs to know the grid level! |
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| 201 | grid_level = maximum_grid_level |
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[667] | 202 | CALL exchange_horiz( d, 1) |
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[1] | 203 | d(nzb,:,:) = d(nzb+1,:,:) |
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| 204 | |
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| 205 | ! |
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| 206 | !-- Initiation of the multigrid scheme. Does n cycles until the |
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| 207 | !-- residual is smaller than the given limit. The accuracy of the solution |
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| 208 | !-- of the poisson equation will increase with the number of cycles. |
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| 209 | !-- If the number of cycles is preset by the user, this number will be |
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| 210 | !-- carried out regardless of the accuracy. |
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[707] | 211 | grid_level_count = 0 |
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| 212 | mgcycles = 0 |
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[1] | 213 | IF ( mg_cycles == -1 ) THEN |
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| 214 | maximum_mgcycles = 0 |
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[1353] | 215 | residual_norm = 1.0_wp |
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[1] | 216 | ELSE |
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| 217 | maximum_mgcycles = mg_cycles |
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[1353] | 218 | residual_norm = 0.0_wp |
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[1] | 219 | ENDIF |
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| 220 | |
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| 221 | DO WHILE ( residual_norm > residual_limit .OR. & |
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| 222 | mgcycles < maximum_mgcycles ) |
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[778] | 223 | |
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[1931] | 224 | CALL next_mg_level_noopt( d, p_loc, p3, r) |
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[1] | 225 | |
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| 226 | ! |
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| 227 | !-- Calculate the residual if the user has not preset the number of |
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| 228 | !-- cycles to be performed |
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| 229 | IF ( maximum_mgcycles == 0 ) THEN |
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[1931] | 230 | CALL resid_noopt( d, p_loc, r ) |
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[1] | 231 | maxerror = SUM( r(nzb+1:nzt,nys:nyn,nxl:nxr)**2 ) |
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[778] | 232 | |
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[1] | 233 | #if defined( __parallel ) |
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[622] | 234 | IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr ) |
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[778] | 235 | CALL MPI_ALLREDUCE( maxerror, residual_norm, 1, MPI_REAL, MPI_SUM, & |
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[1] | 236 | comm2d, ierr) |
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| 237 | #else |
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[778] | 238 | residual_norm = maxerror |
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[1] | 239 | #endif |
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| 240 | residual_norm = SQRT( residual_norm ) |
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| 241 | ENDIF |
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| 242 | |
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| 243 | mgcycles = mgcycles + 1 |
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| 244 | |
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| 245 | ! |
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| 246 | !-- If the user has not limited the number of cycles, stop the run in case |
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| 247 | !-- of insufficient convergence |
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| 248 | IF ( mgcycles > 1000 .AND. mg_cycles == -1 ) THEN |
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[257] | 249 | message_string = 'no sufficient convergence within 1000 cycles' |
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[1931] | 250 | CALL message( 'poismg_noopt', 'PA0283', 1, 2, 0, 6, 0 ) |
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[1] | 251 | ENDIF |
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| 252 | |
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| 253 | ENDDO |
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| 254 | |
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| 255 | DEALLOCATE( p3 ) |
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| 256 | |
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[707] | 257 | ! |
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| 258 | !-- Unset the grid level. Variable is used to determine the MPI datatypes for |
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| 259 | !-- ghost point exchange |
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| 260 | grid_level = 0 |
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| 261 | |
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[1931] | 262 | CALL cpu_log( log_point_s(29), 'poismg_noopt', 'stop' ) |
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[1] | 263 | |
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[1931] | 264 | END SUBROUTINE poismg_noopt |
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[1] | 265 | |
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| 266 | |
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| 267 | !------------------------------------------------------------------------------! |
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| 268 | ! Description: |
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| 269 | ! ------------ |
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[1682] | 270 | !> Computes the residual of the perturbation pressure. |
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[1] | 271 | !------------------------------------------------------------------------------! |
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[1931] | 272 | SUBROUTINE resid_noopt( f_mg, p_mg, r ) |
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[1] | 273 | |
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[1682] | 274 | |
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[1320] | 275 | USE arrays_3d, & |
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[2037] | 276 | ONLY: f1_mg, f2_mg, f3_mg, rho_air_mg |
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[1] | 277 | |
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[1320] | 278 | USE control_parameters, & |
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| 279 | ONLY: bc_lr_cyc, bc_ns_cyc, grid_level, ibc_p_b, ibc_p_t, inflow_l, & |
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[1762] | 280 | inflow_n, inflow_r, inflow_s, nest_bound_l, nest_bound_n, & |
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| 281 | nest_bound_r, nest_bound_s, outflow_l, outflow_n, outflow_r, & |
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[1320] | 282 | outflow_s |
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| 283 | |
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| 284 | USE grid_variables, & |
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| 285 | ONLY: ddx2_mg, ddy2_mg |
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| 286 | |
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| 287 | USE indices, & |
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| 288 | ONLY: flags, wall_flags_1, wall_flags_2, wall_flags_3, wall_flags_4, & |
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| 289 | wall_flags_5, wall_flags_6, wall_flags_7, wall_flags_8, & |
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| 290 | wall_flags_9, wall_flags_10, nxl_mg, nxr_mg, nys_mg, nyn_mg, & |
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| 291 | nzb, nzt_mg |
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| 292 | |
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| 293 | USE kinds |
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| 294 | |
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[1] | 295 | IMPLICIT NONE |
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| 296 | |
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[1320] | 297 | INTEGER(iwp) :: i |
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| 298 | INTEGER(iwp) :: j |
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| 299 | INTEGER(iwp) :: k |
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| 300 | INTEGER(iwp) :: l |
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[1] | 301 | |
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[1320] | 302 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
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[1] | 303 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
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[1682] | 304 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: f_mg !< |
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[1320] | 305 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
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| 306 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
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[1682] | 307 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: p_mg !< |
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[1320] | 308 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
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| 309 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
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[1682] | 310 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: r !< |
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[1] | 311 | |
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| 312 | ! |
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| 313 | !-- Calculate the residual |
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| 314 | l = grid_level |
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| 315 | |
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[114] | 316 | ! |
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| 317 | !-- Choose flag array of this level |
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| 318 | SELECT CASE ( l ) |
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| 319 | CASE ( 1 ) |
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| 320 | flags => wall_flags_1 |
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| 321 | CASE ( 2 ) |
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| 322 | flags => wall_flags_2 |
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| 323 | CASE ( 3 ) |
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| 324 | flags => wall_flags_3 |
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| 325 | CASE ( 4 ) |
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| 326 | flags => wall_flags_4 |
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| 327 | CASE ( 5 ) |
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| 328 | flags => wall_flags_5 |
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| 329 | CASE ( 6 ) |
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| 330 | flags => wall_flags_6 |
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| 331 | CASE ( 7 ) |
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| 332 | flags => wall_flags_7 |
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| 333 | CASE ( 8 ) |
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| 334 | flags => wall_flags_8 |
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| 335 | CASE ( 9 ) |
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| 336 | flags => wall_flags_9 |
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| 337 | CASE ( 10 ) |
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| 338 | flags => wall_flags_10 |
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| 339 | END SELECT |
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| 340 | |
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[1] | 341 | !$OMP PARALLEL PRIVATE (i,j,k) |
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| 342 | !$OMP DO |
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| 343 | DO i = nxl_mg(l), nxr_mg(l) |
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| 344 | DO j = nys_mg(l), nyn_mg(l) |
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| 345 | DO k = nzb+1, nzt_mg(l) |
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[114] | 346 | r(k,j,i) = f_mg(k,j,i) & |
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[2037] | 347 | - rho_air_mg(k,l) * ddx2_mg(l) * & |
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[114] | 348 | ( p_mg(k,j,i+1) + IBITS( flags(k,j,i), 5, 1 ) * & |
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| 349 | ( p_mg(k,j,i) - p_mg(k,j,i+1) ) + & |
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| 350 | p_mg(k,j,i-1) + IBITS( flags(k,j,i), 4, 1 ) * & |
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| 351 | ( p_mg(k,j,i) - p_mg(k,j,i-1) ) ) & |
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[2037] | 352 | - rho_air_mg(k,l) * ddy2_mg(l) * & |
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[114] | 353 | ( p_mg(k,j+1,i) + IBITS( flags(k,j,i), 3, 1 ) * & |
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| 354 | ( p_mg(k,j,i) - p_mg(k,j+1,i) ) + & |
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| 355 | p_mg(k,j-1,i) + IBITS( flags(k,j,i), 2, 1 ) * & |
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| 356 | ( p_mg(k,j,i) - p_mg(k,j-1,i) ) ) & |
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| 357 | - f2_mg(k,l) * p_mg(k+1,j,i) & |
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| 358 | - f3_mg(k,l) * & |
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| 359 | ( p_mg(k-1,j,i) + IBITS( flags(k,j,i), 0, 1 ) * & |
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| 360 | ( p_mg(k,j,i) - p_mg(k-1,j,i) ) ) & |
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[1] | 361 | + f1_mg(k,l) * p_mg(k,j,i) |
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[114] | 362 | ! |
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| 363 | !-- Residual within topography should be zero |
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[1353] | 364 | r(k,j,i) = r(k,j,i) * ( 1.0_wp - IBITS( flags(k,j,i), 6, 1 ) ) |
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[1] | 365 | ENDDO |
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| 366 | ENDDO |
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| 367 | ENDDO |
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| 368 | !$OMP END PARALLEL |
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| 369 | |
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| 370 | ! |
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| 371 | !-- Horizontal boundary conditions |
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[667] | 372 | CALL exchange_horiz( r, 1) |
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[1] | 373 | |
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[707] | 374 | IF ( .NOT. bc_lr_cyc ) THEN |
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[1762] | 375 | IF ( inflow_l .OR. outflow_l .OR. nest_bound_l ) THEN |
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| 376 | r(:,:,nxl_mg(l)-1) = r(:,:,nxl_mg(l)) |
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| 377 | ENDIF |
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| 378 | IF ( inflow_r .OR. outflow_r .OR. nest_bound_r ) THEN |
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| 379 | r(:,:,nxr_mg(l)+1) = r(:,:,nxr_mg(l)) |
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| 380 | ENDIF |
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[1] | 381 | ENDIF |
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| 382 | |
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[707] | 383 | IF ( .NOT. bc_ns_cyc ) THEN |
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[1762] | 384 | IF ( inflow_n .OR. outflow_n .OR. nest_bound_n ) THEN |
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| 385 | r(:,nyn_mg(l)+1,:) = r(:,nyn_mg(l),:) |
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| 386 | ENDIF |
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| 387 | IF ( inflow_s .OR. outflow_s .OR. nest_bound_s ) THEN |
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| 388 | r(:,nys_mg(l)-1,:) = r(:,nys_mg(l),:) |
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| 389 | ENDIF |
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[1] | 390 | ENDIF |
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| 391 | |
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| 392 | ! |
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[707] | 393 | !-- Boundary conditions at bottom and top of the domain. |
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| 394 | !-- These points are not handled by the above loop. Points may be within |
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| 395 | !-- buildings, but that doesn't matter. |
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| 396 | IF ( ibc_p_b == 1 ) THEN |
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| 397 | r(nzb,:,: ) = r(nzb+1,:,:) |
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| 398 | ELSE |
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[1353] | 399 | r(nzb,:,: ) = 0.0_wp |
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[707] | 400 | ENDIF |
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| 401 | |
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[1] | 402 | IF ( ibc_p_t == 1 ) THEN |
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| 403 | r(nzt_mg(l)+1,:,: ) = r(nzt_mg(l),:,:) |
---|
| 404 | ELSE |
---|
[1353] | 405 | r(nzt_mg(l)+1,:,: ) = 0.0_wp |
---|
[1] | 406 | ENDIF |
---|
| 407 | |
---|
| 408 | |
---|
[1931] | 409 | END SUBROUTINE resid_noopt |
---|
[1] | 410 | |
---|
| 411 | |
---|
| 412 | !------------------------------------------------------------------------------! |
---|
| 413 | ! Description: |
---|
| 414 | ! ------------ |
---|
[1682] | 415 | !> Interpolates the residual on the next coarser grid with "full weighting" |
---|
| 416 | !> scheme. |
---|
[1] | 417 | !------------------------------------------------------------------------------! |
---|
[1931] | 418 | SUBROUTINE restrict_noopt( f_mg, r ) |
---|
[1] | 419 | |
---|
[1682] | 420 | |
---|
[1320] | 421 | USE control_parameters, & |
---|
| 422 | ONLY: bc_lr_cyc, bc_ns_cyc, grid_level, ibc_p_b, ibc_p_t, inflow_l, & |
---|
[1762] | 423 | inflow_n, inflow_r, inflow_s, nest_bound_l, nest_bound_n, & |
---|
| 424 | nest_bound_r, nest_bound_s, outflow_l, outflow_n, outflow_r, & |
---|
[1320] | 425 | outflow_s |
---|
[1] | 426 | |
---|
[1320] | 427 | USE indices, & |
---|
| 428 | ONLY: flags, wall_flags_1, wall_flags_2, wall_flags_3, wall_flags_4, & |
---|
| 429 | wall_flags_5, wall_flags_6, wall_flags_7, wall_flags_8, & |
---|
| 430 | wall_flags_9, wall_flags_10, nxl_mg, nxr_mg, nys_mg, nyn_mg, & |
---|
| 431 | nzb, nzt_mg |
---|
| 432 | |
---|
| 433 | USE kinds |
---|
| 434 | |
---|
[1] | 435 | IMPLICIT NONE |
---|
| 436 | |
---|
[1682] | 437 | INTEGER(iwp) :: i !< |
---|
| 438 | INTEGER(iwp) :: ic !< |
---|
| 439 | INTEGER(iwp) :: j !< |
---|
| 440 | INTEGER(iwp) :: jc !< |
---|
| 441 | INTEGER(iwp) :: k !< |
---|
| 442 | INTEGER(iwp) :: kc !< |
---|
| 443 | INTEGER(iwp) :: l !< |
---|
[1] | 444 | |
---|
[1682] | 445 | REAL(wp) :: rkjim !< |
---|
| 446 | REAL(wp) :: rkjip !< |
---|
| 447 | REAL(wp) :: rkjmi !< |
---|
| 448 | REAL(wp) :: rkjmim !< |
---|
| 449 | REAL(wp) :: rkjmip !< |
---|
| 450 | REAL(wp) :: rkjpi !< |
---|
| 451 | REAL(wp) :: rkjpim !< |
---|
| 452 | REAL(wp) :: rkjpip !< |
---|
| 453 | REAL(wp) :: rkmji !< |
---|
| 454 | REAL(wp) :: rkmjim !< |
---|
| 455 | REAL(wp) :: rkmjip !< |
---|
| 456 | REAL(wp) :: rkmjmi !< |
---|
| 457 | REAL(wp) :: rkmjmim !< |
---|
| 458 | REAL(wp) :: rkmjmip !< |
---|
| 459 | REAL(wp) :: rkmjpi !< |
---|
| 460 | REAL(wp) :: rkmjpim !< |
---|
| 461 | REAL(wp) :: rkmjpip !< |
---|
[114] | 462 | |
---|
[1320] | 463 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
| 464 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
[1682] | 465 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: f_mg !< |
---|
[1] | 466 | |
---|
[1320] | 467 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level+1)+1, & |
---|
| 468 | nys_mg(grid_level+1)-1:nyn_mg(grid_level+1)+1, & |
---|
[1682] | 469 | nxl_mg(grid_level+1)-1:nxr_mg(grid_level+1)+1) :: r !< |
---|
[1] | 470 | |
---|
| 471 | ! |
---|
| 472 | !-- Interpolate the residual |
---|
| 473 | l = grid_level |
---|
| 474 | |
---|
[114] | 475 | ! |
---|
| 476 | !-- Choose flag array of the upper level |
---|
[181] | 477 | SELECT CASE ( l+1 ) |
---|
[114] | 478 | CASE ( 1 ) |
---|
| 479 | flags => wall_flags_1 |
---|
| 480 | CASE ( 2 ) |
---|
| 481 | flags => wall_flags_2 |
---|
| 482 | CASE ( 3 ) |
---|
| 483 | flags => wall_flags_3 |
---|
| 484 | CASE ( 4 ) |
---|
| 485 | flags => wall_flags_4 |
---|
| 486 | CASE ( 5 ) |
---|
| 487 | flags => wall_flags_5 |
---|
| 488 | CASE ( 6 ) |
---|
| 489 | flags => wall_flags_6 |
---|
| 490 | CASE ( 7 ) |
---|
| 491 | flags => wall_flags_7 |
---|
| 492 | CASE ( 8 ) |
---|
| 493 | flags => wall_flags_8 |
---|
| 494 | CASE ( 9 ) |
---|
| 495 | flags => wall_flags_9 |
---|
| 496 | CASE ( 10 ) |
---|
| 497 | flags => wall_flags_10 |
---|
| 498 | END SELECT |
---|
| 499 | |
---|
[2232] | 500 | !$OMP PARALLEL PRIVATE (i,j,k,ic,jc,kc, rkjim,rkjip,rkjpi,rkjmi,rkjmim,rkjpim, & |
---|
| 501 | !$OMP rkjmip, rkjpip,rkmji,rkmjim,rkmjip,rkmjpi,rkmjmi,rkmjmim,rkmjpim,rkmjmip,& |
---|
| 502 | !$OMP rkmjpip ) |
---|
[1] | 503 | !$OMP DO |
---|
| 504 | DO ic = nxl_mg(l), nxr_mg(l) |
---|
| 505 | i = 2*ic |
---|
| 506 | DO jc = nys_mg(l), nyn_mg(l) |
---|
| 507 | j = 2*jc |
---|
| 508 | DO kc = nzb+1, nzt_mg(l) |
---|
| 509 | k = 2*kc-1 |
---|
[114] | 510 | ! |
---|
| 511 | !-- Use implicit Neumann BCs if the respective gridpoint is inside |
---|
| 512 | !-- the building |
---|
| 513 | rkjim = r(k,j,i-1) + IBITS( flags(k,j,i-1), 6, 1 ) * & |
---|
| 514 | ( r(k,j,i) - r(k,j,i-1) ) |
---|
| 515 | rkjip = r(k,j,i+1) + IBITS( flags(k,j,i+1), 6, 1 ) * & |
---|
| 516 | ( r(k,j,i) - r(k,j,i+1) ) |
---|
| 517 | rkjpi = r(k,j+1,i) + IBITS( flags(k,j+1,i), 6, 1 ) * & |
---|
| 518 | ( r(k,j,i) - r(k,j+1,i) ) |
---|
| 519 | rkjmi = r(k,j-1,i) + IBITS( flags(k,j-1,i), 6, 1 ) * & |
---|
| 520 | ( r(k,j,i) - r(k,j-1,i) ) |
---|
| 521 | rkjmim = r(k,j-1,i-1) + IBITS( flags(k,j-1,i-1), 6, 1 ) * & |
---|
| 522 | ( r(k,j,i) - r(k,j-1,i-1) ) |
---|
| 523 | rkjpim = r(k,j+1,i-1) + IBITS( flags(k,j+1,i-1), 6, 1 ) * & |
---|
| 524 | ( r(k,j,i) - r(k,j+1,i-1) ) |
---|
| 525 | rkjmip = r(k,j-1,i+1) + IBITS( flags(k,j-1,i+1), 6, 1 ) * & |
---|
| 526 | ( r(k,j,i) - r(k,j-1,i+1) ) |
---|
| 527 | rkjpip = r(k,j+1,i+1) + IBITS( flags(k,j+1,i+1), 6, 1 ) * & |
---|
| 528 | ( r(k,j,i) - r(k,j+1,i+1) ) |
---|
| 529 | rkmji = r(k-1,j,i) + IBITS( flags(k-1,j,i), 6, 1 ) * & |
---|
| 530 | ( r(k,j,i) - r(k-1,j,i) ) |
---|
| 531 | rkmjim = r(k-1,j,i-1) + IBITS( flags(k-1,j,i-1), 6, 1 ) * & |
---|
| 532 | ( r(k,j,i) - r(k-1,j,i-1) ) |
---|
| 533 | rkmjip = r(k-1,j,i+1) + IBITS( flags(k-1,j,i+1), 6, 1 ) * & |
---|
| 534 | ( r(k,j,i) - r(k-1,j,i+1) ) |
---|
| 535 | rkmjpi = r(k-1,j+1,i) + IBITS( flags(k-1,j+1,i), 6, 1 ) * & |
---|
| 536 | ( r(k,j,i) - r(k-1,j+1,i) ) |
---|
| 537 | rkmjmi = r(k-1,j-1,i) + IBITS( flags(k-1,j-1,i), 6, 1 ) * & |
---|
| 538 | ( r(k,j,i) - r(k-1,j-1,i) ) |
---|
| 539 | rkmjmim = r(k-1,j-1,i-1) + IBITS( flags(k-1,j-1,i-1), 6, 1 ) * & |
---|
| 540 | ( r(k,j,i) - r(k-1,j-1,i-1) ) |
---|
| 541 | rkmjpim = r(k-1,j+1,i-1) + IBITS( flags(k-1,j+1,i-1), 6, 1 ) * & |
---|
| 542 | ( r(k,j,i) - r(k-1,j+1,i-1) ) |
---|
| 543 | rkmjmip = r(k-1,j-1,i+1) + IBITS( flags(k-1,j-1,i+1), 6, 1 ) * & |
---|
| 544 | ( r(k,j,i) - r(k-1,j-1,i+1) ) |
---|
| 545 | rkmjpip = r(k-1,j+1,i+1) + IBITS( flags(k-1,j+1,i+1), 6, 1 ) * & |
---|
| 546 | ( r(k,j,i) - r(k-1,j+1,i+1) ) |
---|
| 547 | |
---|
[1353] | 548 | f_mg(kc,jc,ic) = 1.0_wp / 64.0_wp * ( & |
---|
| 549 | 8.0_wp * r(k,j,i) & |
---|
| 550 | + 4.0_wp * ( rkjim + rkjip + & |
---|
| 551 | rkjpi + rkjmi ) & |
---|
| 552 | + 2.0_wp * ( rkjmim + rkjpim + & |
---|
| 553 | rkjmip + rkjpip ) & |
---|
| 554 | + 4.0_wp * rkmji & |
---|
| 555 | + 2.0_wp * ( rkmjim + rkmjim + & |
---|
| 556 | rkmjpi + rkmjmi ) & |
---|
| 557 | + ( rkmjmim + rkmjpim + & |
---|
| 558 | rkmjmip + rkmjpip ) & |
---|
| 559 | + 4.0_wp * r(k+1,j,i) & |
---|
| 560 | + 2.0_wp * ( r(k+1,j,i-1) + r(k+1,j,i+1) + & |
---|
| 561 | r(k+1,j+1,i) + r(k+1,j-1,i) ) & |
---|
| 562 | + ( r(k+1,j-1,i-1) + r(k+1,j+1,i-1) + & |
---|
| 563 | r(k+1,j-1,i+1) + r(k+1,j+1,i+1) ) & |
---|
| 564 | ) |
---|
[114] | 565 | |
---|
[1353] | 566 | ! f_mg(kc,jc,ic) = 1.0_wp / 64.0_wp * ( & |
---|
| 567 | ! 8.0_wp * r(k,j,i) & |
---|
| 568 | ! + 4.0_wp * ( r(k,j,i-1) + r(k,j,i+1) + & |
---|
| 569 | ! r(k,j+1,i) + r(k,j-1,i) ) & |
---|
| 570 | ! + 2.0_wp * ( r(k,j-1,i-1) + r(k,j+1,i-1) + & |
---|
| 571 | ! r(k,j-1,i+1) + r(k,j+1,i+1) ) & |
---|
| 572 | ! + 4.0_wp * r(k-1,j,i) & |
---|
| 573 | ! + 2.0_wp * ( r(k-1,j,i-1) + r(k-1,j,i+1) + & |
---|
| 574 | ! r(k-1,j+1,i) + r(k-1,j-1,i) ) & |
---|
| 575 | ! + ( r(k-1,j-1,i-1) + r(k-1,j+1,i-1) + & |
---|
| 576 | ! r(k-1,j-1,i+1) + r(k-1,j+1,i+1) ) & |
---|
| 577 | ! + 4.0_wp * r(k+1,j,i) & |
---|
| 578 | ! + 2.0_wp * ( r(k+1,j,i-1) + r(k+1,j,i+1) + & |
---|
| 579 | ! r(k+1,j+1,i) + r(k+1,j-1,i) ) & |
---|
| 580 | ! + ( r(k+1,j-1,i-1) + r(k+1,j+1,i-1) + & |
---|
| 581 | ! r(k+1,j-1,i+1) + r(k+1,j+1,i+1) ) & |
---|
| 582 | ! ) |
---|
[1] | 583 | ENDDO |
---|
| 584 | ENDDO |
---|
| 585 | ENDDO |
---|
| 586 | !$OMP END PARALLEL |
---|
| 587 | |
---|
| 588 | ! |
---|
| 589 | !-- Horizontal boundary conditions |
---|
[667] | 590 | CALL exchange_horiz( f_mg, 1) |
---|
[1] | 591 | |
---|
[707] | 592 | IF ( .NOT. bc_lr_cyc ) THEN |
---|
[1762] | 593 | IF ( inflow_l .OR. outflow_l .OR. nest_bound_l ) THEN |
---|
| 594 | f_mg(:,:,nxl_mg(l)-1) = f_mg(:,:,nxl_mg(l)) |
---|
| 595 | ENDIF |
---|
| 596 | IF ( inflow_r .OR. outflow_r .OR. nest_bound_r ) THEN |
---|
| 597 | f_mg(:,:,nxr_mg(l)+1) = f_mg(:,:,nxr_mg(l)) |
---|
| 598 | ENDIF |
---|
[1] | 599 | ENDIF |
---|
| 600 | |
---|
[707] | 601 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
[1762] | 602 | IF ( inflow_n .OR. outflow_n .OR. nest_bound_n ) THEN |
---|
| 603 | f_mg(:,nyn_mg(l)+1,:) = f_mg(:,nyn_mg(l),:) |
---|
| 604 | ENDIF |
---|
| 605 | IF ( inflow_s .OR. outflow_s .OR. nest_bound_s ) THEN |
---|
| 606 | f_mg(:,nys_mg(l)-1,:) = f_mg(:,nys_mg(l),:) |
---|
| 607 | ENDIF |
---|
[1] | 608 | ENDIF |
---|
| 609 | |
---|
| 610 | ! |
---|
[707] | 611 | !-- Boundary conditions at bottom and top of the domain. |
---|
| 612 | !-- These points are not handled by the above loop. Points may be within |
---|
| 613 | !-- buildings, but that doesn't matter. |
---|
| 614 | IF ( ibc_p_b == 1 ) THEN |
---|
| 615 | f_mg(nzb,:,: ) = f_mg(nzb+1,:,:) |
---|
| 616 | ELSE |
---|
[1353] | 617 | f_mg(nzb,:,: ) = 0.0_wp |
---|
[707] | 618 | ENDIF |
---|
[1] | 619 | |
---|
[707] | 620 | IF ( ibc_p_t == 1 ) THEN |
---|
| 621 | f_mg(nzt_mg(l)+1,:,: ) = f_mg(nzt_mg(l),:,:) |
---|
| 622 | ELSE |
---|
[1353] | 623 | f_mg(nzt_mg(l)+1,:,: ) = 0.0_wp |
---|
[707] | 624 | ENDIF |
---|
[1] | 625 | |
---|
[707] | 626 | |
---|
[1931] | 627 | END SUBROUTINE restrict_noopt |
---|
[1] | 628 | |
---|
| 629 | |
---|
| 630 | !------------------------------------------------------------------------------! |
---|
| 631 | ! Description: |
---|
| 632 | ! ------------ |
---|
[1682] | 633 | !> Interpolates the correction of the perturbation pressure |
---|
| 634 | !> to the next finer grid. |
---|
[1] | 635 | !------------------------------------------------------------------------------! |
---|
[1931] | 636 | SUBROUTINE prolong_noopt( p, temp ) |
---|
[1] | 637 | |
---|
[1682] | 638 | |
---|
[1320] | 639 | USE control_parameters, & |
---|
| 640 | ONLY: bc_lr_cyc, bc_ns_cyc, grid_level, ibc_p_b, ibc_p_t, inflow_l, & |
---|
[1762] | 641 | inflow_n, inflow_r, inflow_s, nest_bound_l, nest_bound_n, & |
---|
| 642 | nest_bound_r, nest_bound_s, outflow_l, outflow_n, outflow_r, & |
---|
[1320] | 643 | outflow_s |
---|
[1] | 644 | |
---|
[1320] | 645 | USE indices, & |
---|
| 646 | ONLY: nxl_mg, nxr_mg, nys_mg, nyn_mg, nzb, nzt_mg |
---|
| 647 | |
---|
| 648 | USE kinds |
---|
| 649 | |
---|
[1] | 650 | IMPLICIT NONE |
---|
| 651 | |
---|
[1682] | 652 | INTEGER(iwp) :: i !< |
---|
| 653 | INTEGER(iwp) :: j !< |
---|
| 654 | INTEGER(iwp) :: k !< |
---|
| 655 | INTEGER(iwp) :: l !< |
---|
[1] | 656 | |
---|
[1320] | 657 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level-1)+1, & |
---|
| 658 | nys_mg(grid_level-1)-1:nyn_mg(grid_level-1)+1, & |
---|
[1682] | 659 | nxl_mg(grid_level-1)-1:nxr_mg(grid_level-1)+1 ) :: p !< |
---|
[1] | 660 | |
---|
[1320] | 661 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
| 662 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
[1682] | 663 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: temp !< |
---|
[1] | 664 | |
---|
| 665 | |
---|
| 666 | ! |
---|
| 667 | !-- First, store elements of the coarser grid on the next finer grid |
---|
| 668 | l = grid_level |
---|
| 669 | |
---|
| 670 | !$OMP PARALLEL PRIVATE (i,j,k) |
---|
| 671 | !$OMP DO |
---|
| 672 | DO i = nxl_mg(l-1), nxr_mg(l-1) |
---|
| 673 | DO j = nys_mg(l-1), nyn_mg(l-1) |
---|
| 674 | !CDIR NODEP |
---|
| 675 | DO k = nzb+1, nzt_mg(l-1) |
---|
| 676 | ! |
---|
| 677 | !-- Points of the coarse grid are directly stored on the next finer |
---|
| 678 | !-- grid |
---|
| 679 | temp(2*k-1,2*j,2*i) = p(k,j,i) |
---|
| 680 | ! |
---|
| 681 | !-- Points between two coarse-grid points |
---|
[1353] | 682 | temp(2*k-1,2*j,2*i+1) = 0.5_wp * ( p(k,j,i) + p(k,j,i+1) ) |
---|
| 683 | temp(2*k-1,2*j+1,2*i) = 0.5_wp * ( p(k,j,i) + p(k,j+1,i) ) |
---|
| 684 | temp(2*k,2*j,2*i) = 0.5_wp * ( p(k,j,i) + p(k+1,j,i) ) |
---|
[1] | 685 | ! |
---|
| 686 | !-- Points in the center of the planes stretched by four points |
---|
| 687 | !-- of the coarse grid cube |
---|
[1353] | 688 | temp(2*k-1,2*j+1,2*i+1) = 0.25_wp * ( p(k,j,i) + p(k,j,i+1) + & |
---|
| 689 | p(k,j+1,i) + p(k,j+1,i+1) ) |
---|
| 690 | temp(2*k,2*j,2*i+1) = 0.25_wp * ( p(k,j,i) + p(k,j,i+1) + & |
---|
| 691 | p(k+1,j,i) + p(k+1,j,i+1) ) |
---|
| 692 | temp(2*k,2*j+1,2*i) = 0.25_wp * ( p(k,j,i) + p(k,j+1,i) + & |
---|
| 693 | p(k+1,j,i) + p(k+1,j+1,i) ) |
---|
[1] | 694 | ! |
---|
| 695 | !-- Points in the middle of coarse grid cube |
---|
[1353] | 696 | temp(2*k,2*j+1,2*i+1) = 0.125_wp * ( p(k,j,i) + p(k,j,i+1) + & |
---|
| 697 | p(k,j+1,i) + p(k,j+1,i+1) + & |
---|
| 698 | p(k+1,j,i) + p(k+1,j,i+1) + & |
---|
| 699 | p(k+1,j+1,i) + p(k+1,j+1,i+1) ) |
---|
[1] | 700 | ENDDO |
---|
| 701 | ENDDO |
---|
| 702 | ENDDO |
---|
| 703 | !$OMP END PARALLEL |
---|
| 704 | |
---|
| 705 | ! |
---|
| 706 | !-- Horizontal boundary conditions |
---|
[667] | 707 | CALL exchange_horiz( temp, 1) |
---|
[1] | 708 | |
---|
[707] | 709 | IF ( .NOT. bc_lr_cyc ) THEN |
---|
[1762] | 710 | IF ( inflow_l .OR. outflow_l .OR. nest_bound_l ) THEN |
---|
| 711 | temp(:,:,nxl_mg(l)-1) = temp(:,:,nxl_mg(l)) |
---|
| 712 | ENDIF |
---|
| 713 | IF ( inflow_r .OR. outflow_r .OR. nest_bound_r ) THEN |
---|
| 714 | temp(:,:,nxr_mg(l)+1) = temp(:,:,nxr_mg(l)) |
---|
| 715 | ENDIF |
---|
[1] | 716 | ENDIF |
---|
| 717 | |
---|
[707] | 718 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
[1762] | 719 | IF ( inflow_n .OR. outflow_n .OR. nest_bound_n ) THEN |
---|
| 720 | temp(:,nyn_mg(l)+1,:) = temp(:,nyn_mg(l),:) |
---|
| 721 | ENDIF |
---|
| 722 | IF ( inflow_s .OR. outflow_s .OR. nest_bound_s ) THEN |
---|
| 723 | temp(:,nys_mg(l)-1,:) = temp(:,nys_mg(l),:) |
---|
| 724 | ENDIF |
---|
[1] | 725 | ENDIF |
---|
| 726 | |
---|
| 727 | ! |
---|
| 728 | !-- Bottom and top boundary conditions |
---|
| 729 | IF ( ibc_p_b == 1 ) THEN |
---|
| 730 | temp(nzb,:,: ) = temp(nzb+1,:,:) |
---|
| 731 | ELSE |
---|
[1353] | 732 | temp(nzb,:,: ) = 0.0_wp |
---|
[1] | 733 | ENDIF |
---|
| 734 | |
---|
| 735 | IF ( ibc_p_t == 1 ) THEN |
---|
| 736 | temp(nzt_mg(l)+1,:,: ) = temp(nzt_mg(l),:,:) |
---|
| 737 | ELSE |
---|
[1353] | 738 | temp(nzt_mg(l)+1,:,: ) = 0.0_wp |
---|
[1] | 739 | ENDIF |
---|
| 740 | |
---|
| 741 | |
---|
[1931] | 742 | END SUBROUTINE prolong_noopt |
---|
[1] | 743 | |
---|
| 744 | |
---|
| 745 | !------------------------------------------------------------------------------! |
---|
| 746 | ! Description: |
---|
| 747 | ! ------------ |
---|
[1682] | 748 | !> Relaxation method for the multigrid scheme. A Gauss-Seidel iteration with |
---|
| 749 | !> 3D-Red-Black decomposition (GS-RB) is used. |
---|
[1] | 750 | !------------------------------------------------------------------------------! |
---|
[1931] | 751 | SUBROUTINE redblack_noopt( f_mg, p_mg ) |
---|
[1] | 752 | |
---|
[1682] | 753 | |
---|
[1320] | 754 | USE arrays_3d, & |
---|
[2037] | 755 | ONLY: f1_mg, f2_mg, f3_mg, rho_air_mg |
---|
[1] | 756 | |
---|
[1320] | 757 | USE control_parameters, & |
---|
| 758 | ONLY: bc_lr_cyc, bc_ns_cyc, grid_level, ibc_p_b, ibc_p_t, inflow_l, & |
---|
[1762] | 759 | inflow_n, inflow_r, inflow_s, ngsrb, nest_bound_l, & |
---|
| 760 | nest_bound_n, nest_bound_r, nest_bound_s, outflow_l, outflow_n, & |
---|
[1320] | 761 | outflow_r, outflow_s |
---|
| 762 | |
---|
| 763 | USE cpulog, & |
---|
| 764 | ONLY: cpu_log, log_point_s |
---|
| 765 | |
---|
| 766 | USE grid_variables, & |
---|
| 767 | ONLY: ddx2_mg, ddy2_mg |
---|
| 768 | |
---|
| 769 | USE indices, & |
---|
| 770 | ONLY: flags, wall_flags_1, wall_flags_2, wall_flags_3, wall_flags_4, & |
---|
| 771 | wall_flags_5, wall_flags_6, wall_flags_7, wall_flags_8, & |
---|
| 772 | wall_flags_9, wall_flags_10, nxl_mg, nxr_mg, nys_mg, nyn_mg, & |
---|
| 773 | nzb, nzt_mg |
---|
| 774 | |
---|
| 775 | USE kinds |
---|
| 776 | |
---|
[1] | 777 | IMPLICIT NONE |
---|
| 778 | |
---|
[1682] | 779 | INTEGER(iwp) :: color !< |
---|
| 780 | INTEGER(iwp) :: i !< |
---|
| 781 | INTEGER(iwp) :: ic !< |
---|
| 782 | INTEGER(iwp) :: j !< |
---|
| 783 | INTEGER(iwp) :: jc !< |
---|
| 784 | INTEGER(iwp) :: jj !< |
---|
| 785 | INTEGER(iwp) :: k !< |
---|
| 786 | INTEGER(iwp) :: l !< |
---|
| 787 | INTEGER(iwp) :: n !< |
---|
[1] | 788 | |
---|
[1682] | 789 | LOGICAL :: unroll !< |
---|
[1] | 790 | |
---|
[1682] | 791 | REAL(wp) :: wall_left !< |
---|
| 792 | REAL(wp) :: wall_north !< |
---|
| 793 | REAL(wp) :: wall_right !< |
---|
| 794 | REAL(wp) :: wall_south !< |
---|
| 795 | REAL(wp) :: wall_total !< |
---|
| 796 | REAL(wp) :: wall_top !< |
---|
[114] | 797 | |
---|
[1320] | 798 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
| 799 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
[1682] | 800 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: f_mg !< |
---|
[1320] | 801 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
| 802 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
[1682] | 803 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: p_mg !< |
---|
[1] | 804 | |
---|
| 805 | l = grid_level |
---|
| 806 | |
---|
[114] | 807 | ! |
---|
| 808 | !-- Choose flag array of this level |
---|
| 809 | SELECT CASE ( l ) |
---|
| 810 | CASE ( 1 ) |
---|
| 811 | flags => wall_flags_1 |
---|
| 812 | CASE ( 2 ) |
---|
| 813 | flags => wall_flags_2 |
---|
| 814 | CASE ( 3 ) |
---|
| 815 | flags => wall_flags_3 |
---|
| 816 | CASE ( 4 ) |
---|
| 817 | flags => wall_flags_4 |
---|
| 818 | CASE ( 5 ) |
---|
| 819 | flags => wall_flags_5 |
---|
| 820 | CASE ( 6 ) |
---|
| 821 | flags => wall_flags_6 |
---|
| 822 | CASE ( 7 ) |
---|
| 823 | flags => wall_flags_7 |
---|
| 824 | CASE ( 8 ) |
---|
| 825 | flags => wall_flags_8 |
---|
| 826 | CASE ( 9 ) |
---|
| 827 | flags => wall_flags_9 |
---|
| 828 | CASE ( 10 ) |
---|
| 829 | flags => wall_flags_10 |
---|
| 830 | END SELECT |
---|
| 831 | |
---|
[1] | 832 | unroll = ( MOD( nyn_mg(l)-nys_mg(l)+1, 4 ) == 0 .AND. & |
---|
| 833 | MOD( nxr_mg(l)-nxl_mg(l)+1, 2 ) == 0 ) |
---|
| 834 | |
---|
| 835 | DO n = 1, ngsrb |
---|
| 836 | |
---|
[1320] | 837 | DO color = 1, 2 |
---|
[1] | 838 | |
---|
| 839 | IF ( .NOT. unroll ) THEN |
---|
[778] | 840 | |
---|
[1931] | 841 | CALL cpu_log( log_point_s(36), 'redblack_no_unroll_noopt', 'start' ) |
---|
[1] | 842 | |
---|
| 843 | ! |
---|
| 844 | !-- Without unrolling of loops, no cache optimization |
---|
| 845 | DO i = nxl_mg(l), nxr_mg(l), 2 |
---|
[1320] | 846 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
---|
[1] | 847 | DO k = nzb+1, nzt_mg(l), 2 |
---|
[1353] | 848 | ! p_mg(k,j,i) = 1.0_wp / f1_mg(k,l) * ( & |
---|
[114] | 849 | ! ddx2_mg(l) * ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
| 850 | ! + ddy2_mg(l) * ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
| 851 | ! + f2_mg(k,l) * p_mg(k+1,j,i) & |
---|
| 852 | ! + f3_mg(k,l) * p_mg(k-1,j,i) - f_mg(k,j,i) & |
---|
| 853 | ! ) |
---|
| 854 | |
---|
[1353] | 855 | p_mg(k,j,i) = 1.0_wp / f1_mg(k,l) * ( & |
---|
[2037] | 856 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
[114] | 857 | ( p_mg(k,j,i+1) + IBITS( flags(k,j,i), 5, 1 ) * & |
---|
| 858 | ( p_mg(k,j,i) - p_mg(k,j,i+1) ) + & |
---|
| 859 | p_mg(k,j,i-1) + IBITS( flags(k,j,i), 4, 1 ) * & |
---|
| 860 | ( p_mg(k,j,i) - p_mg(k,j,i-1) ) ) & |
---|
[2037] | 861 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
[114] | 862 | ( p_mg(k,j+1,i) + IBITS( flags(k,j,i), 3, 1 ) * & |
---|
| 863 | ( p_mg(k,j,i) - p_mg(k,j+1,i) ) + & |
---|
| 864 | p_mg(k,j-1,i) + IBITS( flags(k,j,i), 2, 1 ) * & |
---|
| 865 | ( p_mg(k,j,i) - p_mg(k,j-1,i) ) ) & |
---|
| 866 | + f2_mg(k,l) * p_mg(k+1,j,i) & |
---|
| 867 | + f3_mg(k,l) * & |
---|
| 868 | ( p_mg(k-1,j,i) + IBITS( flags(k,j,i), 0, 1 ) * & |
---|
| 869 | ( p_mg(k,j,i) - p_mg(k-1,j,i) ) ) & |
---|
| 870 | - f_mg(k,j,i) ) |
---|
[1] | 871 | ENDDO |
---|
| 872 | ENDDO |
---|
| 873 | ENDDO |
---|
| 874 | |
---|
| 875 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
---|
[1320] | 876 | DO j = nys_mg(l) + (color-1), nyn_mg(l), 2 |
---|
[1] | 877 | DO k = nzb+1, nzt_mg(l), 2 |
---|
[1353] | 878 | p_mg(k,j,i) = 1.0_wp / f1_mg(k,l) * ( & |
---|
[2037] | 879 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
[114] | 880 | ( p_mg(k,j,i+1) + IBITS( flags(k,j,i), 5, 1 ) * & |
---|
| 881 | ( p_mg(k,j,i) - p_mg(k,j,i+1) ) + & |
---|
| 882 | p_mg(k,j,i-1) + IBITS( flags(k,j,i), 4, 1 ) * & |
---|
| 883 | ( p_mg(k,j,i) - p_mg(k,j,i-1) ) ) & |
---|
[2037] | 884 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
[114] | 885 | ( p_mg(k,j+1,i) + IBITS( flags(k,j,i), 3, 1 ) * & |
---|
| 886 | ( p_mg(k,j,i) - p_mg(k,j+1,i) ) + & |
---|
| 887 | p_mg(k,j-1,i) + IBITS( flags(k,j,i), 2, 1 ) * & |
---|
| 888 | ( p_mg(k,j,i) - p_mg(k,j-1,i) ) ) & |
---|
| 889 | + f2_mg(k,l) * p_mg(k+1,j,i) & |
---|
| 890 | + f3_mg(k,l) * & |
---|
| 891 | ( p_mg(k-1,j,i) + IBITS( flags(k,j,i), 0, 1 ) * & |
---|
| 892 | ( p_mg(k,j,i) - p_mg(k-1,j,i) ) ) & |
---|
| 893 | - f_mg(k,j,i) ) |
---|
[1] | 894 | ENDDO |
---|
| 895 | ENDDO |
---|
| 896 | ENDDO |
---|
| 897 | |
---|
| 898 | DO i = nxl_mg(l), nxr_mg(l), 2 |
---|
[1320] | 899 | DO j = nys_mg(l) + (color-1), nyn_mg(l), 2 |
---|
[1] | 900 | DO k = nzb+2, nzt_mg(l), 2 |
---|
[1353] | 901 | p_mg(k,j,i) = 1.0_wp / f1_mg(k,l) * ( & |
---|
[2037] | 902 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
[114] | 903 | ( p_mg(k,j,i+1) + IBITS( flags(k,j,i), 5, 1 ) * & |
---|
| 904 | ( p_mg(k,j,i) - p_mg(k,j,i+1) ) + & |
---|
| 905 | p_mg(k,j,i-1) + IBITS( flags(k,j,i), 4, 1 ) * & |
---|
| 906 | ( p_mg(k,j,i) - p_mg(k,j,i-1) ) ) & |
---|
[2037] | 907 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
[114] | 908 | ( p_mg(k,j+1,i) + IBITS( flags(k,j,i), 3, 1 ) * & |
---|
| 909 | ( p_mg(k,j,i) - p_mg(k,j+1,i) ) + & |
---|
| 910 | p_mg(k,j-1,i) + IBITS( flags(k,j,i), 2, 1 ) * & |
---|
| 911 | ( p_mg(k,j,i) - p_mg(k,j-1,i) ) ) & |
---|
| 912 | + f2_mg(k,l) * p_mg(k+1,j,i) & |
---|
| 913 | + f3_mg(k,l) * & |
---|
| 914 | ( p_mg(k-1,j,i) + IBITS( flags(k,j,i), 0, 1 ) * & |
---|
| 915 | ( p_mg(k,j,i) - p_mg(k-1,j,i) ) ) & |
---|
| 916 | - f_mg(k,j,i) ) |
---|
[1] | 917 | ENDDO |
---|
| 918 | ENDDO |
---|
| 919 | ENDDO |
---|
| 920 | |
---|
| 921 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
---|
[1320] | 922 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
---|
[1] | 923 | DO k = nzb+2, nzt_mg(l), 2 |
---|
[1353] | 924 | p_mg(k,j,i) = 1.0_wp / f1_mg(k,l) * ( & |
---|
[2037] | 925 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
[114] | 926 | ( p_mg(k,j,i+1) + IBITS( flags(k,j,i), 5, 1 ) * & |
---|
| 927 | ( p_mg(k,j,i) - p_mg(k,j,i+1) ) + & |
---|
| 928 | p_mg(k,j,i-1) + IBITS( flags(k,j,i), 4, 1 ) * & |
---|
| 929 | ( p_mg(k,j,i) - p_mg(k,j,i-1) ) ) & |
---|
[2037] | 930 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
[114] | 931 | ( p_mg(k,j+1,i) + IBITS( flags(k,j,i), 3, 1 ) * & |
---|
| 932 | ( p_mg(k,j,i) - p_mg(k,j+1,i) ) + & |
---|
| 933 | p_mg(k,j-1,i) + IBITS( flags(k,j,i), 2, 1 ) * & |
---|
| 934 | ( p_mg(k,j,i) - p_mg(k,j-1,i) ) ) & |
---|
| 935 | + f2_mg(k,l) * p_mg(k+1,j,i) & |
---|
| 936 | + f3_mg(k,l) * & |
---|
| 937 | ( p_mg(k-1,j,i) + IBITS( flags(k,j,i), 0, 1 ) * & |
---|
| 938 | ( p_mg(k,j,i) - p_mg(k-1,j,i) ) ) & |
---|
| 939 | - f_mg(k,j,i) ) |
---|
[1] | 940 | ENDDO |
---|
| 941 | ENDDO |
---|
| 942 | ENDDO |
---|
[1931] | 943 | CALL cpu_log( log_point_s(36), 'redblack_no_unroll_noopt', 'stop' ) |
---|
[1] | 944 | |
---|
| 945 | ELSE |
---|
| 946 | |
---|
| 947 | ! |
---|
| 948 | !-- Loop unrolling along y, only one i loop for better cache use |
---|
[1931] | 949 | CALL cpu_log( log_point_s(38), 'redblack_unroll_noopt', 'start' ) |
---|
[1] | 950 | DO ic = nxl_mg(l), nxr_mg(l), 2 |
---|
| 951 | DO jc = nys_mg(l), nyn_mg(l), 4 |
---|
| 952 | i = ic |
---|
[1320] | 953 | jj = jc+2-color |
---|
[1] | 954 | DO k = nzb+1, nzt_mg(l), 2 |
---|
| 955 | j = jj |
---|
[1353] | 956 | p_mg(k,j,i) = 1.0_wp / f1_mg(k,l) * ( & |
---|
[2037] | 957 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
[114] | 958 | ( p_mg(k,j,i+1) + IBITS( flags(k,j,i), 5, 1 ) * & |
---|
| 959 | ( p_mg(k,j,i) - p_mg(k,j,i+1) ) + & |
---|
| 960 | p_mg(k,j,i-1) + IBITS( flags(k,j,i), 4, 1 ) * & |
---|
| 961 | ( p_mg(k,j,i) - p_mg(k,j,i-1) ) ) & |
---|
[2037] | 962 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
[114] | 963 | ( p_mg(k,j+1,i) + IBITS( flags(k,j,i), 3, 1 ) * & |
---|
| 964 | ( p_mg(k,j,i) - p_mg(k,j+1,i) ) + & |
---|
| 965 | p_mg(k,j-1,i) + IBITS( flags(k,j,i), 2, 1 ) * & |
---|
| 966 | ( p_mg(k,j,i) - p_mg(k,j-1,i) ) ) & |
---|
| 967 | + f2_mg(k,l) * p_mg(k+1,j,i) & |
---|
| 968 | + f3_mg(k,l) * & |
---|
| 969 | ( p_mg(k-1,j,i) + IBITS( flags(k,j,i), 0, 1 ) * & |
---|
| 970 | ( p_mg(k,j,i) - p_mg(k-1,j,i) ) ) & |
---|
| 971 | - f_mg(k,j,i) ) |
---|
[1] | 972 | j = jj+2 |
---|
[1353] | 973 | p_mg(k,j,i) = 1.0_wp / f1_mg(k,l) * ( & |
---|
[2037] | 974 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
[114] | 975 | ( p_mg(k,j,i+1) + IBITS( flags(k,j,i), 5, 1 ) * & |
---|
| 976 | ( p_mg(k,j,i) - p_mg(k,j,i+1) ) + & |
---|
| 977 | p_mg(k,j,i-1) + IBITS( flags(k,j,i), 4, 1 ) * & |
---|
| 978 | ( p_mg(k,j,i) - p_mg(k,j,i-1) ) ) & |
---|
[2037] | 979 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
[114] | 980 | ( p_mg(k,j+1,i) + IBITS( flags(k,j,i), 3, 1 ) * & |
---|
| 981 | ( p_mg(k,j,i) - p_mg(k,j+1,i) ) + & |
---|
| 982 | p_mg(k,j-1,i) + IBITS( flags(k,j,i), 2, 1 ) * & |
---|
| 983 | ( p_mg(k,j,i) - p_mg(k,j-1,i) ) ) & |
---|
| 984 | + f2_mg(k,l) * p_mg(k+1,j,i) & |
---|
| 985 | + f3_mg(k,l) * & |
---|
| 986 | ( p_mg(k-1,j,i) + IBITS( flags(k,j,i), 0, 1 ) * & |
---|
| 987 | ( p_mg(k,j,i) - p_mg(k-1,j,i) ) ) & |
---|
| 988 | - f_mg(k,j,i) ) |
---|
[1] | 989 | ENDDO |
---|
| 990 | |
---|
| 991 | i = ic+1 |
---|
[1320] | 992 | jj = jc+color-1 |
---|
[1] | 993 | DO k = nzb+1, nzt_mg(l), 2 |
---|
| 994 | j =jj |
---|
[1353] | 995 | p_mg(k,j,i) = 1.0_wp / f1_mg(k,l) * ( & |
---|
[2037] | 996 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
[114] | 997 | ( p_mg(k,j,i+1) + IBITS( flags(k,j,i), 5, 1 ) * & |
---|
| 998 | ( p_mg(k,j,i) - p_mg(k,j,i+1) ) + & |
---|
| 999 | p_mg(k,j,i-1) + IBITS( flags(k,j,i), 4, 1 ) * & |
---|
| 1000 | ( p_mg(k,j,i) - p_mg(k,j,i-1) ) ) & |
---|
[2037] | 1001 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
[114] | 1002 | ( p_mg(k,j+1,i) + IBITS( flags(k,j,i), 3, 1 ) * & |
---|
| 1003 | ( p_mg(k,j,i) - p_mg(k,j+1,i) ) + & |
---|
| 1004 | p_mg(k,j-1,i) + IBITS( flags(k,j,i), 2, 1 ) * & |
---|
| 1005 | ( p_mg(k,j,i) - p_mg(k,j-1,i) ) ) & |
---|
| 1006 | + f2_mg(k,l) * p_mg(k+1,j,i) & |
---|
| 1007 | + f3_mg(k,l) * & |
---|
| 1008 | ( p_mg(k-1,j,i) + IBITS( flags(k,j,i), 0, 1 ) * & |
---|
| 1009 | ( p_mg(k,j,i) - p_mg(k-1,j,i) ) ) & |
---|
| 1010 | - f_mg(k,j,i) ) |
---|
[1] | 1011 | j = jj+2 |
---|
[1353] | 1012 | p_mg(k,j,i) = 1.0_wp / f1_mg(k,l) * ( & |
---|
[2037] | 1013 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
[114] | 1014 | ( p_mg(k,j,i+1) + IBITS( flags(k,j,i), 5, 1 ) * & |
---|
| 1015 | ( p_mg(k,j,i) - p_mg(k,j,i+1) ) + & |
---|
| 1016 | p_mg(k,j,i-1) + IBITS( flags(k,j,i), 4, 1 ) * & |
---|
| 1017 | ( p_mg(k,j,i) - p_mg(k,j,i-1) ) ) & |
---|
[2037] | 1018 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
[114] | 1019 | ( p_mg(k,j+1,i) + IBITS( flags(k,j,i), 3, 1 ) * & |
---|
| 1020 | ( p_mg(k,j,i) - p_mg(k,j+1,i) ) + & |
---|
| 1021 | p_mg(k,j-1,i) + IBITS( flags(k,j,i), 2, 1 ) * & |
---|
| 1022 | ( p_mg(k,j,i) - p_mg(k,j-1,i) ) ) & |
---|
| 1023 | + f2_mg(k,l) * p_mg(k+1,j,i) & |
---|
| 1024 | + f3_mg(k,l) * & |
---|
| 1025 | ( p_mg(k-1,j,i) + IBITS( flags(k,j,i), 0, 1 ) * & |
---|
| 1026 | ( p_mg(k,j,i) - p_mg(k-1,j,i) ) ) & |
---|
| 1027 | - f_mg(k,j,i) ) |
---|
[1] | 1028 | ENDDO |
---|
| 1029 | |
---|
| 1030 | i = ic |
---|
[1320] | 1031 | jj = jc+color-1 |
---|
[1] | 1032 | DO k = nzb+2, nzt_mg(l), 2 |
---|
| 1033 | j =jj |
---|
[1353] | 1034 | p_mg(k,j,i) = 1.0_wp / f1_mg(k,l) * ( & |
---|
[2037] | 1035 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
[114] | 1036 | ( p_mg(k,j,i+1) + IBITS( flags(k,j,i), 5, 1 ) * & |
---|
| 1037 | ( p_mg(k,j,i) - p_mg(k,j,i+1) ) + & |
---|
| 1038 | p_mg(k,j,i-1) + IBITS( flags(k,j,i), 4, 1 ) * & |
---|
| 1039 | ( p_mg(k,j,i) - p_mg(k,j,i-1) ) ) & |
---|
[2037] | 1040 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
[114] | 1041 | ( p_mg(k,j+1,i) + IBITS( flags(k,j,i), 3, 1 ) * & |
---|
| 1042 | ( p_mg(k,j,i) - p_mg(k,j+1,i) ) + & |
---|
| 1043 | p_mg(k,j-1,i) + IBITS( flags(k,j,i), 2, 1 ) * & |
---|
| 1044 | ( p_mg(k,j,i) - p_mg(k,j-1,i) ) ) & |
---|
| 1045 | + f2_mg(k,l) * p_mg(k+1,j,i) & |
---|
| 1046 | + f3_mg(k,l) * & |
---|
| 1047 | ( p_mg(k-1,j,i) + IBITS( flags(k,j,i), 0, 1 ) * & |
---|
| 1048 | ( p_mg(k,j,i) - p_mg(k-1,j,i) ) ) & |
---|
| 1049 | - f_mg(k,j,i) ) |
---|
[1] | 1050 | j = jj+2 |
---|
[1353] | 1051 | p_mg(k,j,i) = 1.0_wp / f1_mg(k,l) * ( & |
---|
[2037] | 1052 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
[114] | 1053 | ( p_mg(k,j,i+1) + IBITS( flags(k,j,i), 5, 1 ) * & |
---|
| 1054 | ( p_mg(k,j,i) - p_mg(k,j,i+1) ) + & |
---|
| 1055 | p_mg(k,j,i-1) + IBITS( flags(k,j,i), 4, 1 ) * & |
---|
| 1056 | ( p_mg(k,j,i) - p_mg(k,j,i-1) ) ) & |
---|
[2037] | 1057 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
[114] | 1058 | ( p_mg(k,j+1,i) + IBITS( flags(k,j,i), 3, 1 ) * & |
---|
| 1059 | ( p_mg(k,j,i) - p_mg(k,j+1,i) ) + & |
---|
| 1060 | p_mg(k,j-1,i) + IBITS( flags(k,j,i), 2, 1 ) * & |
---|
| 1061 | ( p_mg(k,j,i) - p_mg(k,j-1,i) ) ) & |
---|
| 1062 | + f2_mg(k,l) * p_mg(k+1,j,i) & |
---|
| 1063 | + f3_mg(k,l) * & |
---|
| 1064 | ( p_mg(k-1,j,i) + IBITS( flags(k,j,i), 0, 1 ) * & |
---|
| 1065 | ( p_mg(k,j,i) - p_mg(k-1,j,i) ) ) & |
---|
| 1066 | - f_mg(k,j,i) ) |
---|
[1] | 1067 | ENDDO |
---|
| 1068 | |
---|
| 1069 | i = ic+1 |
---|
[1320] | 1070 | jj = jc+2-color |
---|
[1] | 1071 | DO k = nzb+2, nzt_mg(l), 2 |
---|
| 1072 | j =jj |
---|
[1353] | 1073 | p_mg(k,j,i) = 1.0_wp / f1_mg(k,l) * ( & |
---|
[2037] | 1074 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
[114] | 1075 | ( p_mg(k,j,i+1) + IBITS( flags(k,j,i), 5, 1 ) * & |
---|
| 1076 | ( p_mg(k,j,i) - p_mg(k,j,i+1) ) + & |
---|
| 1077 | p_mg(k,j,i-1) + IBITS( flags(k,j,i), 4, 1 ) * & |
---|
| 1078 | ( p_mg(k,j,i) - p_mg(k,j,i-1) ) ) & |
---|
[2037] | 1079 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
[114] | 1080 | ( p_mg(k,j+1,i) + IBITS( flags(k,j,i), 3, 1 ) * & |
---|
| 1081 | ( p_mg(k,j,i) - p_mg(k,j+1,i) ) + & |
---|
| 1082 | p_mg(k,j-1,i) + IBITS( flags(k,j,i), 2, 1 ) * & |
---|
| 1083 | ( p_mg(k,j,i) - p_mg(k,j-1,i) ) ) & |
---|
| 1084 | + f2_mg(k,l) * p_mg(k+1,j,i) & |
---|
| 1085 | + f3_mg(k,l) * & |
---|
| 1086 | ( p_mg(k-1,j,i) + IBITS( flags(k,j,i), 0, 1 ) * & |
---|
| 1087 | ( p_mg(k,j,i) - p_mg(k-1,j,i) ) ) & |
---|
| 1088 | - f_mg(k,j,i) ) |
---|
[1] | 1089 | j = jj+2 |
---|
[1353] | 1090 | p_mg(k,j,i) = 1.0_wp / f1_mg(k,l) * ( & |
---|
[2037] | 1091 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
[114] | 1092 | ( p_mg(k,j,i+1) + IBITS( flags(k,j,i), 5, 1 ) * & |
---|
| 1093 | ( p_mg(k,j,i) - p_mg(k,j,i+1) ) + & |
---|
| 1094 | p_mg(k,j,i-1) + IBITS( flags(k,j,i), 4, 1 ) * & |
---|
| 1095 | ( p_mg(k,j,i) - p_mg(k,j,i-1) ) ) & |
---|
[2037] | 1096 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
[114] | 1097 | ( p_mg(k,j+1,i) + IBITS( flags(k,j,i), 3, 1 ) * & |
---|
| 1098 | ( p_mg(k,j,i) - p_mg(k,j+1,i) ) + & |
---|
| 1099 | p_mg(k,j-1,i) + IBITS( flags(k,j,i), 2, 1 ) * & |
---|
| 1100 | ( p_mg(k,j,i) - p_mg(k,j-1,i) ) ) & |
---|
| 1101 | + f2_mg(k,l) * p_mg(k+1,j,i) & |
---|
| 1102 | + f3_mg(k,l) * & |
---|
| 1103 | ( p_mg(k-1,j,i) + IBITS( flags(k,j,i), 0, 1 ) * & |
---|
| 1104 | ( p_mg(k,j,i) - p_mg(k-1,j,i) ) ) & |
---|
| 1105 | - f_mg(k,j,i) ) |
---|
[1] | 1106 | ENDDO |
---|
| 1107 | |
---|
| 1108 | ENDDO |
---|
| 1109 | ENDDO |
---|
[1931] | 1110 | CALL cpu_log( log_point_s(38), 'redblack_unroll_noopt', 'stop' ) |
---|
[1] | 1111 | |
---|
| 1112 | ENDIF |
---|
| 1113 | |
---|
| 1114 | ! |
---|
| 1115 | !-- Horizontal boundary conditions |
---|
[667] | 1116 | CALL exchange_horiz( p_mg, 1 ) |
---|
[1] | 1117 | |
---|
[707] | 1118 | IF ( .NOT. bc_lr_cyc ) THEN |
---|
[1762] | 1119 | IF ( inflow_l .OR. outflow_l .OR. nest_bound_l ) THEN |
---|
[1] | 1120 | p_mg(:,:,nxl_mg(l)-1) = p_mg(:,:,nxl_mg(l)) |
---|
| 1121 | ENDIF |
---|
[1762] | 1122 | IF ( inflow_r .OR. outflow_r .OR. nest_bound_r ) THEN |
---|
[1] | 1123 | p_mg(:,:,nxr_mg(l)+1) = p_mg(:,:,nxr_mg(l)) |
---|
| 1124 | ENDIF |
---|
| 1125 | ENDIF |
---|
| 1126 | |
---|
[707] | 1127 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
[1762] | 1128 | IF ( inflow_n .OR. outflow_n .OR. nest_bound_n ) THEN |
---|
[1] | 1129 | p_mg(:,nyn_mg(l)+1,:) = p_mg(:,nyn_mg(l),:) |
---|
| 1130 | ENDIF |
---|
[1762] | 1131 | IF ( inflow_s .OR. outflow_s .OR. nest_bound_s ) THEN |
---|
[1] | 1132 | p_mg(:,nys_mg(l)-1,:) = p_mg(:,nys_mg(l),:) |
---|
| 1133 | ENDIF |
---|
| 1134 | ENDIF |
---|
| 1135 | |
---|
| 1136 | ! |
---|
| 1137 | !-- Bottom and top boundary conditions |
---|
| 1138 | IF ( ibc_p_b == 1 ) THEN |
---|
| 1139 | p_mg(nzb,:,: ) = p_mg(nzb+1,:,:) |
---|
| 1140 | ELSE |
---|
[1353] | 1141 | p_mg(nzb,:,: ) = 0.0_wp |
---|
[1] | 1142 | ENDIF |
---|
| 1143 | |
---|
| 1144 | IF ( ibc_p_t == 1 ) THEN |
---|
| 1145 | p_mg(nzt_mg(l)+1,:,: ) = p_mg(nzt_mg(l),:,:) |
---|
| 1146 | ELSE |
---|
[1353] | 1147 | p_mg(nzt_mg(l)+1,:,: ) = 0.0_wp |
---|
[1] | 1148 | ENDIF |
---|
| 1149 | |
---|
| 1150 | ENDDO |
---|
| 1151 | |
---|
| 1152 | ENDDO |
---|
| 1153 | |
---|
[114] | 1154 | ! |
---|
| 1155 | !-- Set pressure within topography and at the topography surfaces |
---|
| 1156 | !$OMP PARALLEL PRIVATE (i,j,k,wall_left,wall_north,wall_right,wall_south,wall_top,wall_total) |
---|
| 1157 | !$OMP DO |
---|
| 1158 | DO i = nxl_mg(l), nxr_mg(l) |
---|
| 1159 | DO j = nys_mg(l), nyn_mg(l) |
---|
| 1160 | DO k = nzb, nzt_mg(l) |
---|
| 1161 | ! |
---|
| 1162 | !-- First, set pressure inside topography to zero |
---|
[1353] | 1163 | p_mg(k,j,i) = p_mg(k,j,i) * ( 1.0_wp - IBITS( flags(k,j,i), 6, 1 ) ) |
---|
[114] | 1164 | ! |
---|
| 1165 | !-- Second, determine if the gridpoint inside topography is adjacent |
---|
| 1166 | !-- to a wall and set its value to a value given by the average of |
---|
| 1167 | !-- those values obtained from Neumann boundary condition |
---|
| 1168 | wall_left = IBITS( flags(k,j,i-1), 5, 1 ) |
---|
| 1169 | wall_right = IBITS( flags(k,j,i+1), 4, 1 ) |
---|
| 1170 | wall_south = IBITS( flags(k,j-1,i), 3, 1 ) |
---|
| 1171 | wall_north = IBITS( flags(k,j+1,i), 2, 1 ) |
---|
| 1172 | wall_top = IBITS( flags(k+1,j,i), 0, 1 ) |
---|
| 1173 | wall_total = wall_left + wall_right + wall_south + wall_north + & |
---|
| 1174 | wall_top |
---|
[1] | 1175 | |
---|
[1353] | 1176 | IF ( wall_total > 0.0_wp ) THEN |
---|
| 1177 | p_mg(k,j,i) = 1.0_wp / wall_total * & |
---|
| 1178 | ( wall_left * p_mg(k,j,i-1) + & |
---|
| 1179 | wall_right * p_mg(k,j,i+1) + & |
---|
| 1180 | wall_south * p_mg(k,j-1,i) + & |
---|
| 1181 | wall_north * p_mg(k,j+1,i) + & |
---|
| 1182 | wall_top * p_mg(k+1,j,i) ) |
---|
[114] | 1183 | ENDIF |
---|
| 1184 | ENDDO |
---|
| 1185 | ENDDO |
---|
| 1186 | ENDDO |
---|
[1056] | 1187 | !$OMP END PARALLEL |
---|
[114] | 1188 | |
---|
| 1189 | ! |
---|
| 1190 | !-- One more time horizontal boundary conditions |
---|
[667] | 1191 | CALL exchange_horiz( p_mg, 1) |
---|
[114] | 1192 | |
---|
[778] | 1193 | |
---|
[1931] | 1194 | END SUBROUTINE redblack_noopt |
---|
[1] | 1195 | |
---|
| 1196 | |
---|
| 1197 | |
---|
[1682] | 1198 | !------------------------------------------------------------------------------! |
---|
| 1199 | ! Description: |
---|
| 1200 | ! ------------ |
---|
| 1201 | !> Gather subdomain data from all PEs. |
---|
| 1202 | !------------------------------------------------------------------------------! |
---|
[1931] | 1203 | SUBROUTINE mg_gather_noopt( f2, f2_sub ) |
---|
[1] | 1204 | |
---|
[1320] | 1205 | USE control_parameters, & |
---|
| 1206 | ONLY: grid_level |
---|
| 1207 | |
---|
| 1208 | USE cpulog, & |
---|
| 1209 | ONLY: cpu_log, log_point_s |
---|
| 1210 | |
---|
| 1211 | USE indices, & |
---|
| 1212 | ONLY: mg_loc_ind, nxl_mg, nxr_mg, nys_mg, nyn_mg, nzb, nzt_mg |
---|
| 1213 | |
---|
| 1214 | USE kinds |
---|
| 1215 | |
---|
[1] | 1216 | USE pegrid |
---|
| 1217 | |
---|
| 1218 | IMPLICIT NONE |
---|
| 1219 | |
---|
[1682] | 1220 | INTEGER(iwp) :: i !< |
---|
| 1221 | INTEGER(iwp) :: il !< |
---|
| 1222 | INTEGER(iwp) :: ir !< |
---|
| 1223 | INTEGER(iwp) :: j !< |
---|
| 1224 | INTEGER(iwp) :: jn !< |
---|
| 1225 | INTEGER(iwp) :: js !< |
---|
| 1226 | INTEGER(iwp) :: k !< |
---|
| 1227 | INTEGER(iwp) :: nwords !< |
---|
[1] | 1228 | |
---|
[1320] | 1229 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
| 1230 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
[1682] | 1231 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: f2 !< |
---|
[1320] | 1232 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
| 1233 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
[1682] | 1234 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: f2_l !< |
---|
[1] | 1235 | |
---|
[1320] | 1236 | REAL(wp), DIMENSION(nzb:mg_loc_ind(5,myid)+1, & |
---|
| 1237 | mg_loc_ind(3,myid)-1:mg_loc_ind(4,myid)+1, & |
---|
[1682] | 1238 | mg_loc_ind(1,myid)-1:mg_loc_ind(2,myid)+1) :: f2_sub !< |
---|
[1] | 1239 | |
---|
| 1240 | |
---|
| 1241 | #if defined( __parallel ) |
---|
[1931] | 1242 | CALL cpu_log( log_point_s(34), 'mg_gather_noopt', 'start' ) |
---|
[1] | 1243 | |
---|
[1353] | 1244 | f2_l = 0.0_wp |
---|
[1] | 1245 | |
---|
| 1246 | ! |
---|
[707] | 1247 | !-- Store the local subdomain array on the total array |
---|
| 1248 | js = mg_loc_ind(3,myid) |
---|
| 1249 | IF ( south_border_pe ) js = js - 1 |
---|
| 1250 | jn = mg_loc_ind(4,myid) |
---|
| 1251 | IF ( north_border_pe ) jn = jn + 1 |
---|
| 1252 | il = mg_loc_ind(1,myid) |
---|
| 1253 | IF ( left_border_pe ) il = il - 1 |
---|
| 1254 | ir = mg_loc_ind(2,myid) |
---|
| 1255 | IF ( right_border_pe ) ir = ir + 1 |
---|
| 1256 | DO i = il, ir |
---|
| 1257 | DO j = js, jn |
---|
| 1258 | DO k = nzb, nzt_mg(grid_level)+1 |
---|
| 1259 | f2_l(k,j,i) = f2_sub(k,j,i) |
---|
| 1260 | ENDDO |
---|
[1] | 1261 | ENDDO |
---|
[707] | 1262 | ENDDO |
---|
[1] | 1263 | |
---|
| 1264 | ! |
---|
[707] | 1265 | !-- Find out the number of array elements of the total array |
---|
| 1266 | nwords = SIZE( f2 ) |
---|
[1] | 1267 | |
---|
[707] | 1268 | ! |
---|
| 1269 | !-- Gather subdomain data from all PEs |
---|
| 1270 | IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr ) |
---|
| 1271 | CALL MPI_ALLREDUCE( f2_l(nzb,nys_mg(grid_level)-1,nxl_mg(grid_level)-1), & |
---|
| 1272 | f2(nzb,nys_mg(grid_level)-1,nxl_mg(grid_level)-1), & |
---|
| 1273 | nwords, MPI_REAL, MPI_SUM, comm2d, ierr ) |
---|
| 1274 | |
---|
[1931] | 1275 | CALL cpu_log( log_point_s(34), 'mg_gather_noopt', 'stop' ) |
---|
[1] | 1276 | #endif |
---|
| 1277 | |
---|
[1931] | 1278 | END SUBROUTINE mg_gather_noopt |
---|
[1] | 1279 | |
---|
| 1280 | |
---|
| 1281 | |
---|
[1682] | 1282 | !------------------------------------------------------------------------------! |
---|
| 1283 | ! Description: |
---|
| 1284 | ! ------------ |
---|
| 1285 | !> @todo It may be possible to improve the speed of this routine by using |
---|
| 1286 | !> non-blocking communication |
---|
| 1287 | !------------------------------------------------------------------------------! |
---|
[1931] | 1288 | SUBROUTINE mg_scatter_noopt( p2, p2_sub ) |
---|
[1] | 1289 | |
---|
[1320] | 1290 | USE control_parameters, & |
---|
| 1291 | ONLY: grid_level |
---|
| 1292 | |
---|
| 1293 | USE cpulog, & |
---|
| 1294 | ONLY: cpu_log, log_point_s |
---|
| 1295 | |
---|
| 1296 | USE indices, & |
---|
| 1297 | ONLY: mg_loc_ind, nxl_mg, nxr_mg, nys_mg, nyn_mg, nzb, nzt_mg |
---|
| 1298 | |
---|
| 1299 | USE kinds |
---|
| 1300 | |
---|
[1] | 1301 | USE pegrid |
---|
| 1302 | |
---|
| 1303 | IMPLICIT NONE |
---|
| 1304 | |
---|
[1682] | 1305 | INTEGER(iwp) :: nwords !< |
---|
[1] | 1306 | |
---|
[1320] | 1307 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level-1)+1, & |
---|
| 1308 | nys_mg(grid_level-1)-1:nyn_mg(grid_level-1)+1, & |
---|
[1682] | 1309 | nxl_mg(grid_level-1)-1:nxr_mg(grid_level-1)+1) :: p2 !< |
---|
[1] | 1310 | |
---|
[1320] | 1311 | REAL(wp), DIMENSION(nzb:mg_loc_ind(5,myid)+1, & |
---|
| 1312 | mg_loc_ind(3,myid)-1:mg_loc_ind(4,myid)+1, & |
---|
[1682] | 1313 | mg_loc_ind(1,myid)-1:mg_loc_ind(2,myid)+1) :: p2_sub !< |
---|
[1] | 1314 | |
---|
| 1315 | ! |
---|
| 1316 | !-- Find out the number of array elements of the subdomain array |
---|
| 1317 | nwords = SIZE( p2_sub ) |
---|
| 1318 | |
---|
| 1319 | #if defined( __parallel ) |
---|
[1931] | 1320 | CALL cpu_log( log_point_s(35), 'mg_scatter_noopt', 'start' ) |
---|
[1] | 1321 | |
---|
[707] | 1322 | p2_sub = p2(:,mg_loc_ind(3,myid)-1:mg_loc_ind(4,myid)+1, & |
---|
| 1323 | mg_loc_ind(1,myid)-1:mg_loc_ind(2,myid)+1) |
---|
[1] | 1324 | |
---|
[1931] | 1325 | CALL cpu_log( log_point_s(35), 'mg_scatter_noopt', 'stop' ) |
---|
[1] | 1326 | #endif |
---|
| 1327 | |
---|
[1931] | 1328 | END SUBROUTINE mg_scatter_noopt |
---|
[1] | 1329 | |
---|
| 1330 | |
---|
| 1331 | !------------------------------------------------------------------------------! |
---|
| 1332 | ! Description: |
---|
| 1333 | ! ------------ |
---|
[1682] | 1334 | !> This is where the multigrid technique takes place. V- and W- Cycle are |
---|
| 1335 | !> implemented and steered by the parameter "gamma". Parameter "nue" determines |
---|
| 1336 | !> the convergence of the multigrid iterative solution. There are nue times |
---|
| 1337 | !> RB-GS iterations. It should be set to "1" or "2", considering the time effort |
---|
| 1338 | !> one would like to invest. Last choice shows a very good converging factor, |
---|
| 1339 | !> but leads to an increase in computing time. |
---|
[1] | 1340 | !------------------------------------------------------------------------------! |
---|
[1931] | 1341 | RECURSIVE SUBROUTINE next_mg_level_noopt( f_mg, p_mg, p3, r ) |
---|
[1] | 1342 | |
---|
[1320] | 1343 | USE control_parameters, & |
---|
| 1344 | ONLY: bc_lr_dirrad, bc_lr_raddir, bc_ns_dirrad, bc_ns_raddir, & |
---|
| 1345 | gamma_mg, grid_level, grid_level_count, ibc_p_b, ibc_p_t, & |
---|
| 1346 | inflow_l, inflow_n, inflow_r, inflow_s, maximum_grid_level, & |
---|
[1762] | 1347 | mg_switch_to_pe0_level, mg_switch_to_pe0, nest_domain, & |
---|
| 1348 | nest_bound_l, nest_bound_n, nest_bound_r, nest_bound_s, ngsrb, & |
---|
| 1349 | outflow_l, outflow_n, outflow_r, outflow_s |
---|
[1320] | 1350 | |
---|
| 1351 | |
---|
| 1352 | USE indices, & |
---|
| 1353 | ONLY: mg_loc_ind, nxl, nxl_mg, nxr, nxr_mg, nys, nys_mg, nyn, & |
---|
| 1354 | nyn_mg, nzb, nzt, nzt_mg |
---|
| 1355 | |
---|
| 1356 | USE kinds |
---|
| 1357 | |
---|
[1] | 1358 | USE pegrid |
---|
| 1359 | |
---|
| 1360 | IMPLICIT NONE |
---|
| 1361 | |
---|
[1682] | 1362 | INTEGER(iwp) :: i !< |
---|
| 1363 | INTEGER(iwp) :: j !< |
---|
| 1364 | INTEGER(iwp) :: k !< |
---|
| 1365 | INTEGER(iwp) :: nxl_mg_save !< |
---|
| 1366 | INTEGER(iwp) :: nxr_mg_save !< |
---|
| 1367 | INTEGER(iwp) :: nyn_mg_save !< |
---|
| 1368 | INTEGER(iwp) :: nys_mg_save !< |
---|
| 1369 | INTEGER(iwp) :: nzt_mg_save !< |
---|
[1] | 1370 | |
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[1320] | 1371 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
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| 1372 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
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[1682] | 1373 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: f_mg !< |
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[1320] | 1374 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
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| 1375 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
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[1682] | 1376 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: p_mg !< |
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[1320] | 1377 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
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| 1378 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
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[1682] | 1379 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: p3 !< |
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[1320] | 1380 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
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| 1381 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
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[1682] | 1382 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: r !< |
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[1] | 1383 | |
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[1320] | 1384 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level-1)+1, & |
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| 1385 | nys_mg(grid_level-1)-1:nyn_mg(grid_level-1)+1, & |
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[1682] | 1386 | nxl_mg(grid_level-1)-1:nxr_mg(grid_level-1)+1) :: f2 !< |
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[1320] | 1387 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level-1)+1, & |
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| 1388 | nys_mg(grid_level-1)-1:nyn_mg(grid_level-1)+1, & |
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[1682] | 1389 | nxl_mg(grid_level-1)-1:nxr_mg(grid_level-1)+1) :: p2 !< |
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[1] | 1390 | |
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[1682] | 1391 | REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: f2_sub !< |
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| 1392 | REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: p2_sub !< |
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[778] | 1393 | |
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[1] | 1394 | ! |
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| 1395 | !-- Restriction to the coarsest grid |
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| 1396 | 10 IF ( grid_level == 1 ) THEN |
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| 1397 | |
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| 1398 | ! |
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| 1399 | !-- Solution on the coarsest grid. Double the number of Gauss-Seidel |
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| 1400 | !-- iterations in order to get a more accurate solution. |
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| 1401 | ngsrb = 2 * ngsrb |
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[778] | 1402 | |
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[1931] | 1403 | CALL redblack_noopt( f_mg, p_mg ) |
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[778] | 1404 | |
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[1] | 1405 | ngsrb = ngsrb / 2 |
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| 1406 | |
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[778] | 1407 | |
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[1] | 1408 | ELSEIF ( grid_level /= 1 ) THEN |
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| 1409 | |
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| 1410 | grid_level_count(grid_level) = grid_level_count(grid_level) + 1 |
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| 1411 | |
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| 1412 | ! |
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| 1413 | !-- Solution on the actual grid level |
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[1931] | 1414 | CALL redblack_noopt( f_mg, p_mg ) |
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[1] | 1415 | |
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| 1416 | ! |
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| 1417 | !-- Determination of the actual residual |
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[1931] | 1418 | CALL resid_noopt( f_mg, p_mg, r ) |
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[1] | 1419 | |
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| 1420 | ! |
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| 1421 | !-- Restriction of the residual (finer grid values!) to the next coarser |
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| 1422 | !-- grid. Therefore, the grid level has to be decremented now. nxl..nzt have |
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| 1423 | !-- to be set to the coarse grid values, because these variables are needed |
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| 1424 | !-- for the exchange of ghost points in routine exchange_horiz |
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| 1425 | grid_level = grid_level - 1 |
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| 1426 | nxl = nxl_mg(grid_level) |
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[778] | 1427 | nys = nys_mg(grid_level) |
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[1] | 1428 | nxr = nxr_mg(grid_level) |
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| 1429 | nyn = nyn_mg(grid_level) |
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| 1430 | nzt = nzt_mg(grid_level) |
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| 1431 | |
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| 1432 | IF ( grid_level == mg_switch_to_pe0_level ) THEN |
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[778] | 1433 | |
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[1] | 1434 | ! |
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| 1435 | !-- From this level on, calculations are done on PE0 only. |
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| 1436 | !-- First, carry out restriction on the subdomain. |
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| 1437 | !-- Therefore, indices of the level have to be changed to subdomain values |
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| 1438 | !-- in between (otherwise, the restrict routine would expect |
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| 1439 | !-- the gathered array) |
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[778] | 1440 | |
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[1] | 1441 | nxl_mg_save = nxl_mg(grid_level) |
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| 1442 | nxr_mg_save = nxr_mg(grid_level) |
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| 1443 | nys_mg_save = nys_mg(grid_level) |
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| 1444 | nyn_mg_save = nyn_mg(grid_level) |
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| 1445 | nzt_mg_save = nzt_mg(grid_level) |
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| 1446 | nxl_mg(grid_level) = mg_loc_ind(1,myid) |
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| 1447 | nxr_mg(grid_level) = mg_loc_ind(2,myid) |
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| 1448 | nys_mg(grid_level) = mg_loc_ind(3,myid) |
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| 1449 | nyn_mg(grid_level) = mg_loc_ind(4,myid) |
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| 1450 | nzt_mg(grid_level) = mg_loc_ind(5,myid) |
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| 1451 | nxl = mg_loc_ind(1,myid) |
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| 1452 | nxr = mg_loc_ind(2,myid) |
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| 1453 | nys = mg_loc_ind(3,myid) |
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| 1454 | nyn = mg_loc_ind(4,myid) |
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| 1455 | nzt = mg_loc_ind(5,myid) |
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| 1456 | |
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| 1457 | ALLOCATE( f2_sub(nzb:nzt_mg(grid_level)+1, & |
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| 1458 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
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| 1459 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) ) |
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| 1460 | |
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[1931] | 1461 | CALL restrict_noopt( f2_sub, r ) |
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[1] | 1462 | |
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| 1463 | ! |
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| 1464 | !-- Restore the correct indices of this level |
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| 1465 | nxl_mg(grid_level) = nxl_mg_save |
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| 1466 | nxr_mg(grid_level) = nxr_mg_save |
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| 1467 | nys_mg(grid_level) = nys_mg_save |
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| 1468 | nyn_mg(grid_level) = nyn_mg_save |
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| 1469 | nzt_mg(grid_level) = nzt_mg_save |
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| 1470 | nxl = nxl_mg(grid_level) |
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| 1471 | nxr = nxr_mg(grid_level) |
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| 1472 | nys = nys_mg(grid_level) |
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| 1473 | nyn = nyn_mg(grid_level) |
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| 1474 | nzt = nzt_mg(grid_level) |
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| 1475 | ! |
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| 1476 | !-- Gather all arrays from the subdomains on PE0 |
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[1931] | 1477 | CALL mg_gather_noopt( f2, f2_sub ) |
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[1] | 1478 | |
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| 1479 | ! |
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| 1480 | !-- Set switch for routine exchange_horiz, that no ghostpoint exchange |
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| 1481 | !-- has to be carried out from now on |
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| 1482 | mg_switch_to_pe0 = .TRUE. |
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| 1483 | |
---|
| 1484 | ! |
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| 1485 | !-- In case of non-cyclic lateral boundary conditions, both in- and |
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[707] | 1486 | !-- outflow conditions have to be used on all PEs after the switch, |
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| 1487 | !-- because then they have the total domain. |
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[1159] | 1488 | IF ( bc_lr_dirrad ) THEN |
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[707] | 1489 | inflow_l = .TRUE. |
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| 1490 | inflow_r = .FALSE. |
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| 1491 | outflow_l = .FALSE. |
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| 1492 | outflow_r = .TRUE. |
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[1159] | 1493 | ELSEIF ( bc_lr_raddir ) THEN |
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[707] | 1494 | inflow_l = .FALSE. |
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| 1495 | inflow_r = .TRUE. |
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| 1496 | outflow_l = .TRUE. |
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| 1497 | outflow_r = .FALSE. |
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[1762] | 1498 | ELSEIF ( nest_domain ) THEN |
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| 1499 | nest_bound_l = .TRUE. |
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| 1500 | nest_bound_r = .TRUE. |
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[1] | 1501 | ENDIF |
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| 1502 | |
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[1159] | 1503 | IF ( bc_ns_dirrad ) THEN |
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[707] | 1504 | inflow_n = .TRUE. |
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| 1505 | inflow_s = .FALSE. |
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| 1506 | outflow_n = .FALSE. |
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| 1507 | outflow_s = .TRUE. |
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[1159] | 1508 | ELSEIF ( bc_ns_raddir ) THEN |
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[707] | 1509 | inflow_n = .FALSE. |
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| 1510 | inflow_s = .TRUE. |
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| 1511 | outflow_n = .TRUE. |
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| 1512 | outflow_s = .FALSE. |
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[1762] | 1513 | ELSEIF ( nest_domain ) THEN |
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| 1514 | nest_bound_s = .TRUE. |
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| 1515 | nest_bound_n = .TRUE. |
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[707] | 1516 | ENDIF |
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| 1517 | |
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[1] | 1518 | DEALLOCATE( f2_sub ) |
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| 1519 | |
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| 1520 | ELSE |
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[1056] | 1521 | |
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[1931] | 1522 | CALL restrict_noopt( f2, r ) |
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[1] | 1523 | |
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| 1524 | ENDIF |
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[707] | 1525 | |
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[1353] | 1526 | p2 = 0.0_wp |
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[1] | 1527 | |
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| 1528 | ! |
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| 1529 | !-- Repeat the same procedure till the coarsest grid is reached |
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[1931] | 1530 | CALL next_mg_level_noopt( f2, p2, p3, r ) |
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[1] | 1531 | |
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| 1532 | ENDIF |
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| 1533 | |
---|
| 1534 | ! |
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| 1535 | !-- Now follows the prolongation |
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| 1536 | IF ( grid_level >= 2 ) THEN |
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| 1537 | |
---|
| 1538 | ! |
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| 1539 | !-- Prolongation of the new residual. The values are transferred |
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| 1540 | !-- from the coarse to the next finer grid. |
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| 1541 | IF ( grid_level == mg_switch_to_pe0_level+1 ) THEN |
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[879] | 1542 | |
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| 1543 | #if defined( __parallel ) |
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[1] | 1544 | ! |
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| 1545 | !-- At this level, the new residual first has to be scattered from |
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| 1546 | !-- PE0 to the other PEs |
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| 1547 | ALLOCATE( p2_sub(nzb:mg_loc_ind(5,myid)+1, & |
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| 1548 | mg_loc_ind(3,myid)-1:mg_loc_ind(4,myid)+1, & |
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| 1549 | mg_loc_ind(1,myid)-1:mg_loc_ind(2,myid)+1) ) |
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| 1550 | |
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[1931] | 1551 | CALL mg_scatter_noopt( p2, p2_sub ) |
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[1] | 1552 | |
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| 1553 | ! |
---|
| 1554 | !-- Therefore, indices of the previous level have to be changed to |
---|
| 1555 | !-- subdomain values in between (otherwise, the prolong routine would |
---|
| 1556 | !-- expect the gathered array) |
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| 1557 | nxl_mg_save = nxl_mg(grid_level-1) |
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| 1558 | nxr_mg_save = nxr_mg(grid_level-1) |
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| 1559 | nys_mg_save = nys_mg(grid_level-1) |
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| 1560 | nyn_mg_save = nyn_mg(grid_level-1) |
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| 1561 | nzt_mg_save = nzt_mg(grid_level-1) |
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| 1562 | nxl_mg(grid_level-1) = mg_loc_ind(1,myid) |
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| 1563 | nxr_mg(grid_level-1) = mg_loc_ind(2,myid) |
---|
| 1564 | nys_mg(grid_level-1) = mg_loc_ind(3,myid) |
---|
| 1565 | nyn_mg(grid_level-1) = mg_loc_ind(4,myid) |
---|
| 1566 | nzt_mg(grid_level-1) = mg_loc_ind(5,myid) |
---|
| 1567 | |
---|
| 1568 | ! |
---|
| 1569 | !-- Set switch for routine exchange_horiz, that ghostpoint exchange |
---|
| 1570 | !-- has to be carried again out from now on |
---|
| 1571 | mg_switch_to_pe0 = .FALSE. |
---|
| 1572 | |
---|
| 1573 | ! |
---|
[2021] | 1574 | !-- For non-cyclic lateral boundary conditions and in case of nesting, |
---|
| 1575 | !-- restore the in-/outflow conditions. |
---|
[707] | 1576 | inflow_l = .FALSE.; inflow_r = .FALSE. |
---|
| 1577 | inflow_n = .FALSE.; inflow_s = .FALSE. |
---|
| 1578 | outflow_l = .FALSE.; outflow_r = .FALSE. |
---|
| 1579 | outflow_n = .FALSE.; outflow_s = .FALSE. |
---|
[2021] | 1580 | ! |
---|
| 1581 | !-- In case of nesting, restore lateral boundary conditions |
---|
| 1582 | IF ( nest_domain ) THEN |
---|
| 1583 | nest_bound_l = .FALSE. |
---|
| 1584 | nest_bound_r = .FALSE. |
---|
| 1585 | nest_bound_s = .FALSE. |
---|
| 1586 | nest_bound_n = .FALSE. |
---|
| 1587 | ENDIF |
---|
[707] | 1588 | |
---|
| 1589 | IF ( pleft == MPI_PROC_NULL ) THEN |
---|
[1159] | 1590 | IF ( bc_lr_dirrad ) THEN |
---|
[707] | 1591 | inflow_l = .TRUE. |
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[1159] | 1592 | ELSEIF ( bc_lr_raddir ) THEN |
---|
[707] | 1593 | outflow_l = .TRUE. |
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[1762] | 1594 | ELSEIF ( nest_domain ) THEN |
---|
| 1595 | nest_bound_l = .TRUE. |
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[1] | 1596 | ENDIF |
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[707] | 1597 | ENDIF |
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| 1598 | |
---|
| 1599 | IF ( pright == MPI_PROC_NULL ) THEN |
---|
[1159] | 1600 | IF ( bc_lr_dirrad ) THEN |
---|
[707] | 1601 | outflow_r = .TRUE. |
---|
[1159] | 1602 | ELSEIF ( bc_lr_raddir ) THEN |
---|
[707] | 1603 | inflow_r = .TRUE. |
---|
[1762] | 1604 | ELSEIF ( nest_domain ) THEN |
---|
| 1605 | nest_bound_r = .TRUE. |
---|
[1] | 1606 | ENDIF |
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| 1607 | ENDIF |
---|
| 1608 | |
---|
[707] | 1609 | IF ( psouth == MPI_PROC_NULL ) THEN |
---|
[1159] | 1610 | IF ( bc_ns_dirrad ) THEN |
---|
[707] | 1611 | outflow_s = .TRUE. |
---|
[1159] | 1612 | ELSEIF ( bc_ns_raddir ) THEN |
---|
[707] | 1613 | inflow_s = .TRUE. |
---|
[1762] | 1614 | ELSEIF ( nest_domain ) THEN |
---|
| 1615 | nest_bound_s = .TRUE. |
---|
[707] | 1616 | ENDIF |
---|
| 1617 | ENDIF |
---|
| 1618 | |
---|
| 1619 | IF ( pnorth == MPI_PROC_NULL ) THEN |
---|
[1159] | 1620 | IF ( bc_ns_dirrad ) THEN |
---|
[707] | 1621 | inflow_n = .TRUE. |
---|
[1159] | 1622 | ELSEIF ( bc_ns_raddir ) THEN |
---|
[707] | 1623 | outflow_n = .TRUE. |
---|
[1762] | 1624 | ELSEIF ( nest_domain ) THEN |
---|
| 1625 | nest_bound_n = .TRUE. |
---|
[707] | 1626 | ENDIF |
---|
| 1627 | ENDIF |
---|
| 1628 | |
---|
[1931] | 1629 | CALL prolong_noopt( p2_sub, p3 ) |
---|
[1] | 1630 | |
---|
| 1631 | ! |
---|
| 1632 | !-- Restore the correct indices of the previous level |
---|
| 1633 | nxl_mg(grid_level-1) = nxl_mg_save |
---|
| 1634 | nxr_mg(grid_level-1) = nxr_mg_save |
---|
| 1635 | nys_mg(grid_level-1) = nys_mg_save |
---|
| 1636 | nyn_mg(grid_level-1) = nyn_mg_save |
---|
| 1637 | nzt_mg(grid_level-1) = nzt_mg_save |
---|
| 1638 | |
---|
| 1639 | DEALLOCATE( p2_sub ) |
---|
[879] | 1640 | #endif |
---|
[1] | 1641 | |
---|
| 1642 | ELSE |
---|
[879] | 1643 | |
---|
[1931] | 1644 | CALL prolong_noopt( p2, p3 ) |
---|
[1] | 1645 | |
---|
| 1646 | ENDIF |
---|
| 1647 | |
---|
| 1648 | ! |
---|
| 1649 | !-- Computation of the new pressure correction. Therefore, |
---|
| 1650 | !-- values from prior grids are added up automatically stage by stage. |
---|
| 1651 | DO i = nxl_mg(grid_level)-1, nxr_mg(grid_level)+1 |
---|
| 1652 | DO j = nys_mg(grid_level)-1, nyn_mg(grid_level)+1 |
---|
| 1653 | DO k = nzb, nzt_mg(grid_level)+1 |
---|
| 1654 | p_mg(k,j,i) = p_mg(k,j,i) + p3(k,j,i) |
---|
| 1655 | ENDDO |
---|
| 1656 | ENDDO |
---|
| 1657 | ENDDO |
---|
| 1658 | |
---|
| 1659 | ! |
---|
| 1660 | !-- Relaxation of the new solution |
---|
[1931] | 1661 | CALL redblack_noopt( f_mg, p_mg ) |
---|
[1] | 1662 | |
---|
| 1663 | ENDIF |
---|
| 1664 | |
---|
[778] | 1665 | |
---|
[1] | 1666 | ! |
---|
| 1667 | !-- The following few lines serve the steering of the multigrid scheme |
---|
| 1668 | IF ( grid_level == maximum_grid_level ) THEN |
---|
| 1669 | |
---|
| 1670 | GOTO 20 |
---|
| 1671 | |
---|
| 1672 | ELSEIF ( grid_level /= maximum_grid_level .AND. grid_level /= 1 .AND. & |
---|
| 1673 | grid_level_count(grid_level) /= gamma_mg ) THEN |
---|
| 1674 | |
---|
| 1675 | GOTO 10 |
---|
| 1676 | |
---|
| 1677 | ENDIF |
---|
| 1678 | |
---|
| 1679 | ! |
---|
[1931] | 1680 | !-- Reset counter for the next call of poismg_noopt |
---|
[1] | 1681 | grid_level_count(grid_level) = 0 |
---|
| 1682 | |
---|
| 1683 | ! |
---|
| 1684 | !-- Continue with the next finer level. nxl..nzt have to be |
---|
| 1685 | !-- set to the finer grid values, because these variables are needed for the |
---|
| 1686 | !-- exchange of ghost points in routine exchange_horiz |
---|
| 1687 | grid_level = grid_level + 1 |
---|
| 1688 | nxl = nxl_mg(grid_level) |
---|
| 1689 | nxr = nxr_mg(grid_level) |
---|
| 1690 | nys = nys_mg(grid_level) |
---|
| 1691 | nyn = nyn_mg(grid_level) |
---|
| 1692 | nzt = nzt_mg(grid_level) |
---|
| 1693 | |
---|
| 1694 | 20 CONTINUE |
---|
| 1695 | |
---|
[1931] | 1696 | END SUBROUTINE next_mg_level_noopt |
---|