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