[1931] | 1 | !> @file poismg.f90 |
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[2000] | 2 | !------------------------------------------------------------------------------! |
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[2696] | 3 | ! This file is part of the PALM model system. |
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[1575] | 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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[1575] | 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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[3655] | 17 | ! Copyright 1997-2019 Leibniz Universitaet Hannover |
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[2000] | 18 | !------------------------------------------------------------------------------! |
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[1575] | 19 | ! |
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| 20 | ! Current revisions: |
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| 21 | ! ----------------- |
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[1610] | 22 | ! |
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[3183] | 23 | ! |
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[1576] | 24 | ! Former revisions: |
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| 25 | ! ----------------- |
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| 26 | ! $Id: poismg_mod.f90 4180 2019-08-21 14:37:54Z scharf $ |
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[3725] | 27 | ! unused subroutine removed |
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| 28 | ! |
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| 29 | ! 3655 2019-01-07 16:51:22Z knoop |
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[3534] | 30 | ! unnecessary check eliminated |
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| 31 | ! |
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[3182] | 32 | ! |
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[1575] | 33 | ! Description: |
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| 34 | ! ------------ |
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[1682] | 35 | !> Solves the Poisson equation for the perturbation pressure with a multigrid |
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| 36 | !> V- or W-Cycle scheme. |
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| 37 | !> |
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| 38 | !> This multigrid method was originally developed for PALM by Joerg Uhlenbrock, |
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| 39 | !> September 2000 - July 2001. It has been optimised for speed by Klaus |
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| 40 | !> Ketelsen in November 2014. |
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| 41 | !> |
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| 42 | !> @attention Loop unrolling and cache optimization in SOR-Red/Black method |
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| 43 | !> still does not give the expected speedup! |
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| 44 | !> |
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| 45 | !> @todo Further work required. |
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[1575] | 46 | !------------------------------------------------------------------------------! |
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[1682] | 47 | MODULE poismg_mod |
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| 48 | |
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[2696] | 49 | USE control_parameters, & |
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[3182] | 50 | ONLY: bc_dirichlet_l, bc_dirichlet_n, bc_dirichlet_r, & |
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| 51 | bc_dirichlet_s, bc_radiation_l, bc_radiation_n, bc_radiation_r, & |
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| 52 | bc_radiation_s, grid_level, nesting_offline |
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[1575] | 53 | |
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| 54 | USE cpulog, & |
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| 55 | ONLY: cpu_log, log_point_s |
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[1609] | 56 | |
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[1575] | 57 | USE kinds |
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[1609] | 58 | |
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[1575] | 59 | USE pegrid |
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| 60 | |
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| 61 | PRIVATE |
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| 62 | |
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[1682] | 63 | INTEGER, SAVE :: ind_even_odd !< border index between even and odd k index |
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| 64 | INTEGER, DIMENSION(:), SAVE, ALLOCATABLE :: even_odd_level !< stores ind_even_odd for all MG levels |
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[1575] | 65 | |
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[1682] | 66 | REAL(wp), DIMENSION(:,:), SAVE, ALLOCATABLE :: f1_mg_b, f2_mg_b, f3_mg_b !< blocked version of f1_mg ... |
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[1575] | 67 | |
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[1931] | 68 | INTERFACE poismg |
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| 69 | MODULE PROCEDURE poismg |
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| 70 | END INTERFACE poismg |
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[1575] | 71 | |
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| 72 | INTERFACE sort_k_to_even_odd_blocks |
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| 73 | MODULE PROCEDURE sort_k_to_even_odd_blocks |
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[3725] | 74 | ! MODULE PROCEDURE sort_k_to_even_odd_blocks_int |
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[1575] | 75 | MODULE PROCEDURE sort_k_to_even_odd_blocks_1d |
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| 76 | END INTERFACE sort_k_to_even_odd_blocks |
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| 77 | |
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[1931] | 78 | PUBLIC poismg |
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[1575] | 79 | |
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| 80 | CONTAINS |
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| 81 | |
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[1682] | 82 | !------------------------------------------------------------------------------! |
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| 83 | ! Description: |
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| 84 | ! ------------ |
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| 85 | !> Solves the Poisson equation for the perturbation pressure with a multigrid |
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| 86 | !> V- or W-Cycle scheme. |
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| 87 | !------------------------------------------------------------------------------! |
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[1931] | 88 | SUBROUTINE poismg( r ) |
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[1575] | 89 | |
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| 90 | USE arrays_3d, & |
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| 91 | ONLY: d, p_loc |
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| 92 | |
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| 93 | USE control_parameters, & |
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[2939] | 94 | ONLY: bc_lr_cyc, bc_ns_cyc, gathered_size, grid_level, & |
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| 95 | grid_level_count, ibc_p_t, & |
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[1575] | 96 | maximum_grid_level, message_string, mgcycles, mg_cycles, & |
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| 97 | mg_switch_to_pe0_level, residual_limit, subdomain_size |
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| 98 | |
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| 99 | USE cpulog, & |
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| 100 | ONLY: cpu_log, log_point_s |
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| 101 | |
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| 102 | USE indices, & |
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| 103 | ONLY: nxl, nxlg, nxl_mg, nxr, nxrg, nxr_mg, nys, nysg, nys_mg, nyn,& |
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| 104 | nyng, nyn_mg, nzb, nzt, nzt_mg |
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| 105 | |
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| 106 | IMPLICIT NONE |
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| 107 | |
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[1682] | 108 | REAL(wp) :: maxerror !< |
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| 109 | REAL(wp) :: maximum_mgcycles !< |
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| 110 | REAL(wp) :: residual_norm !< |
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[1575] | 111 | |
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[1682] | 112 | REAL(wp), DIMENSION(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) :: r !< |
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[1575] | 113 | |
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[1682] | 114 | REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: p3 !< |
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[1575] | 115 | |
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| 116 | |
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[1931] | 117 | CALL cpu_log( log_point_s(29), 'poismg', 'start' ) |
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[1575] | 118 | ! |
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| 119 | !-- Initialize arrays and variables used in this subroutine |
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| 120 | |
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| 121 | !-- If the number of grid points of the gathered grid, which is collected |
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| 122 | !-- on PE0, is larger than the number of grid points of an PE, than array |
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| 123 | !-- p3 will be enlarged. |
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| 124 | IF ( gathered_size > subdomain_size ) THEN |
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| 125 | ALLOCATE( p3(nzb:nzt_mg(mg_switch_to_pe0_level)+1,nys_mg( & |
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| 126 | mg_switch_to_pe0_level)-1:nyn_mg(mg_switch_to_pe0_level)+1,& |
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| 127 | nxl_mg(mg_switch_to_pe0_level)-1:nxr_mg( & |
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| 128 | mg_switch_to_pe0_level)+1) ) |
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| 129 | ELSE |
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| 130 | ALLOCATE ( p3(nzb:nzt+1,nysg:nyng,nxlg:nxrg) ) |
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| 131 | ENDIF |
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| 132 | |
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| 133 | p3 = 0.0_wp |
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| 134 | |
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| 135 | |
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| 136 | ! |
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| 137 | !-- Ghost boundaries have to be added to divergence array. |
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| 138 | !-- Exchange routine needs to know the grid level! |
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| 139 | grid_level = maximum_grid_level |
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| 140 | CALL exchange_horiz( d, 1) |
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[2939] | 141 | ! |
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| 142 | !-- Set bottom and top boundary conditions |
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[1575] | 143 | d(nzb,:,:) = d(nzb+1,:,:) |
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[2939] | 144 | IF ( ibc_p_t == 1 ) d(nzt+1,:,: ) = d(nzt,:,:) |
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[1575] | 145 | ! |
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[2939] | 146 | !-- Set lateral boundary conditions in non-cyclic case |
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| 147 | IF ( .NOT. bc_lr_cyc ) THEN |
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[3182] | 148 | IF ( bc_dirichlet_l .OR. bc_radiation_l ) & |
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[2939] | 149 | d(:,:,nxl-1) = d(:,:,nxl) |
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[3182] | 150 | IF ( bc_dirichlet_r .OR. bc_radiation_r ) & |
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[2939] | 151 | d(:,:,nxr+1) = d(:,:,nxr) |
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| 152 | ENDIF |
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| 153 | IF ( .NOT. bc_ns_cyc ) THEN |
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[3182] | 154 | IF ( bc_dirichlet_n .OR. bc_radiation_n ) & |
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[2939] | 155 | d(:,nyn+1,:) = d(:,nyn,:) |
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[3182] | 156 | IF ( bc_dirichlet_s .OR. bc_radiation_s ) & |
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[2939] | 157 | d(:,nys-1,:) = d(:,nys,:) |
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| 158 | ENDIF |
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| 159 | ! |
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[1575] | 160 | !-- Initiation of the multigrid scheme. Does n cycles until the |
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| 161 | !-- residual is smaller than the given limit. The accuracy of the solution |
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| 162 | !-- of the poisson equation will increase with the number of cycles. |
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| 163 | !-- If the number of cycles is preset by the user, this number will be |
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| 164 | !-- carried out regardless of the accuracy. |
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| 165 | grid_level_count = 0 |
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| 166 | mgcycles = 0 |
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| 167 | IF ( mg_cycles == -1 ) THEN |
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| 168 | maximum_mgcycles = 0 |
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| 169 | residual_norm = 1.0_wp |
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| 170 | ELSE |
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| 171 | maximum_mgcycles = mg_cycles |
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| 172 | residual_norm = 0.0_wp |
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| 173 | ENDIF |
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| 174 | |
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| 175 | ! |
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| 176 | !-- Initial settings for sorting k-dimension from sequential order (alternate |
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| 177 | !-- even/odd) into blocks of even and odd or vice versa |
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| 178 | CALL init_even_odd_blocks |
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| 179 | |
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| 180 | ! |
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| 181 | !-- Sort input arrays in even/odd blocks along k-dimension |
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| 182 | CALL sort_k_to_even_odd_blocks( d, grid_level ) |
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| 183 | CALL sort_k_to_even_odd_blocks( p_loc, grid_level ) |
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| 184 | |
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| 185 | ! |
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| 186 | !-- The complete multigrid cycles are running in block mode, i.e. over |
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| 187 | !-- seperate data blocks of even and odd indices |
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| 188 | DO WHILE ( residual_norm > residual_limit .OR. & |
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| 189 | mgcycles < maximum_mgcycles ) |
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| 190 | |
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[1931] | 191 | CALL next_mg_level( d, p_loc, p3, r) |
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[1575] | 192 | |
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| 193 | ! |
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| 194 | !-- Calculate the residual if the user has not preset the number of |
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| 195 | !-- cycles to be performed |
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| 196 | IF ( maximum_mgcycles == 0 ) THEN |
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[1931] | 197 | CALL resid( d, p_loc, r ) |
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[1575] | 198 | maxerror = SUM( r(nzb+1:nzt,nys:nyn,nxl:nxr)**2 ) |
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| 199 | |
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| 200 | #if defined( __parallel ) |
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| 201 | IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr ) |
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| 202 | CALL MPI_ALLREDUCE( maxerror, residual_norm, 1, MPI_REAL, & |
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| 203 | MPI_SUM, comm2d, ierr) |
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| 204 | #else |
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| 205 | residual_norm = maxerror |
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| 206 | #endif |
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| 207 | residual_norm = SQRT( residual_norm ) |
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| 208 | ENDIF |
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| 209 | |
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| 210 | mgcycles = mgcycles + 1 |
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| 211 | |
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| 212 | ! |
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| 213 | !-- If the user has not limited the number of cycles, stop the run in case |
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| 214 | !-- of insufficient convergence |
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| 215 | IF ( mgcycles > 1000 .AND. mg_cycles == -1 ) THEN |
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| 216 | message_string = 'no sufficient convergence within 1000 cycles' |
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[1931] | 217 | CALL message( 'poismg', 'PA0283', 1, 2, 0, 6, 0 ) |
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[1575] | 218 | ENDIF |
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| 219 | |
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| 220 | ENDDO |
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| 221 | |
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| 222 | DEALLOCATE( p3 ) |
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| 223 | ! |
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| 224 | !-- Result has to be sorted back from even/odd blocks to sequential order |
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| 225 | CALL sort_k_to_sequential( p_loc ) |
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| 226 | ! |
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| 227 | !-- Unset the grid level. Variable is used to determine the MPI datatypes for |
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| 228 | !-- ghost point exchange |
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| 229 | grid_level = 0 |
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| 230 | |
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[1931] | 231 | CALL cpu_log( log_point_s(29), 'poismg', 'stop' ) |
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[1575] | 232 | |
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[1931] | 233 | END SUBROUTINE poismg |
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[1575] | 234 | |
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| 235 | |
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| 236 | !------------------------------------------------------------------------------! |
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| 237 | ! Description: |
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| 238 | ! ------------ |
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[1682] | 239 | !> Computes the residual of the perturbation pressure. |
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[1575] | 240 | !------------------------------------------------------------------------------! |
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[1931] | 241 | SUBROUTINE resid( f_mg, p_mg, r ) |
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[1575] | 242 | |
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[1682] | 243 | |
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[1575] | 244 | USE arrays_3d, & |
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[3241] | 245 | ONLY: rho_air_mg |
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[1575] | 246 | |
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| 247 | USE control_parameters, & |
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[2696] | 248 | ONLY: bc_lr_cyc, bc_ns_cyc, ibc_p_b, ibc_p_t |
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[1575] | 249 | USE grid_variables, & |
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| 250 | ONLY: ddx2_mg, ddy2_mg |
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| 251 | |
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| 252 | USE indices, & |
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[1898] | 253 | ONLY: nxl_mg, nxr_mg, nys_mg, nyn_mg, nzb, nzt_mg |
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[1575] | 254 | |
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| 255 | IMPLICIT NONE |
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| 256 | |
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[1898] | 257 | INTEGER(iwp) :: i !< index variable along x |
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| 258 | INTEGER(iwp) :: j !< index variable along y |
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| 259 | INTEGER(iwp) :: k !< index variable along z |
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| 260 | INTEGER(iwp) :: l !< index indicating grid level |
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| 261 | INTEGER(iwp) :: km1 !< index variable along z dimension (k-1) |
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| 262 | INTEGER(iwp) :: kp1 !< index variable along z dimension (k+1) |
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[1575] | 263 | |
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| 264 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
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| 265 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
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[1898] | 266 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: f_mg !< velocity divergence |
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[1575] | 267 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
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| 268 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
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[1898] | 269 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: p_mg !< perturbation pressure |
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[1575] | 270 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
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| 271 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
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[1898] | 272 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: r !< residuum of perturbation pressure |
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[1575] | 273 | |
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| 274 | ! |
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| 275 | !-- Calculate the residual |
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| 276 | l = grid_level |
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| 277 | |
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| 278 | CALL cpu_log( log_point_s(53), 'resid', 'start' ) |
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[1898] | 279 | !$OMP PARALLEL PRIVATE (i,j,k,km1,kp1) |
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| 280 | !$OMP DO |
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| 281 | DO i = nxl_mg(l), nxr_mg(l) |
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| 282 | DO j = nys_mg(l), nyn_mg(l) |
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[1575] | 283 | !DIR$ IVDEP |
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[1898] | 284 | DO k = ind_even_odd+1, nzt_mg(l) |
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| 285 | km1 = k-ind_even_odd-1 |
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| 286 | kp1 = k-ind_even_odd |
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| 287 | r(k,j,i) = f_mg(k,j,i) & |
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[2232] | 288 | - rho_air_mg(k,l) * ddx2_mg(l) * & |
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[1898] | 289 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
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[2232] | 290 | - rho_air_mg(k,l) * ddy2_mg(l) * & |
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[1898] | 291 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
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| 292 | - f2_mg_b(k,l) * p_mg(kp1,j,i) & |
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| 293 | - f3_mg_b(k,l) * p_mg(km1,j,i) & |
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[1575] | 294 | + f1_mg_b(k,l) * p_mg(k,j,i) |
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[1898] | 295 | ENDDO |
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| 296 | !DIR$ IVDEP |
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| 297 | DO k = nzb+1, ind_even_odd |
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| 298 | km1 = k+ind_even_odd |
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| 299 | kp1 = k+ind_even_odd+1 |
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| 300 | r(k,j,i) = f_mg(k,j,i) & |
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[2232] | 301 | - rho_air_mg(k,l) * ddx2_mg(l) * & |
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[1898] | 302 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
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[2232] | 303 | - rho_air_mg(k,l) * ddy2_mg(l) * & |
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[1898] | 304 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
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| 305 | - f2_mg_b(k,l) * p_mg(kp1,j,i) & |
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| 306 | - f3_mg_b(k,l) * p_mg(km1,j,i) & |
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[1575] | 307 | + f1_mg_b(k,l) * p_mg(k,j,i) |
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| 308 | ENDDO |
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| 309 | ENDDO |
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[1898] | 310 | ENDDO |
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| 311 | !$OMP END PARALLEL |
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[1575] | 312 | ! |
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| 313 | !-- Horizontal boundary conditions |
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| 314 | CALL exchange_horiz( r, 1) |
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| 315 | |
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| 316 | IF ( .NOT. bc_lr_cyc ) THEN |
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[3182] | 317 | IF ( bc_dirichlet_l .OR. bc_radiation_l ) THEN |
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[1762] | 318 | r(:,:,nxl_mg(l)-1) = r(:,:,nxl_mg(l)) |
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| 319 | ENDIF |
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[3182] | 320 | IF ( bc_dirichlet_r .OR. bc_radiation_r ) THEN |
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[1762] | 321 | r(:,:,nxr_mg(l)+1) = r(:,:,nxr_mg(l)) |
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| 322 | ENDIF |
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[1575] | 323 | ENDIF |
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| 324 | |
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| 325 | IF ( .NOT. bc_ns_cyc ) THEN |
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[3182] | 326 | IF ( bc_dirichlet_n .OR. bc_radiation_n ) THEN |
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[1762] | 327 | r(:,nyn_mg(l)+1,:) = r(:,nyn_mg(l),:) |
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| 328 | ENDIF |
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[3182] | 329 | IF ( bc_dirichlet_s .OR. bc_radiation_s ) THEN |
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[1762] | 330 | r(:,nys_mg(l)-1,:) = r(:,nys_mg(l),:) |
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| 331 | ENDIF |
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[1575] | 332 | ENDIF |
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| 333 | |
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| 334 | ! |
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[1898] | 335 | !-- Boundary conditions at bottom and top of the domain. Points may be within |
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[1575] | 336 | !-- buildings, but that doesn't matter. |
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| 337 | IF ( ibc_p_b == 1 ) THEN |
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[1898] | 338 | ! |
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| 339 | !-- equivalent to r(nzb,:,: ) = r(nzb+1,:,:) |
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| 340 | r(nzb,:,: ) = r(ind_even_odd+1,:,:) |
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[1575] | 341 | ELSE |
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| 342 | r(nzb,:,: ) = 0.0_wp |
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| 343 | ENDIF |
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| 344 | |
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| 345 | IF ( ibc_p_t == 1 ) THEN |
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[1898] | 346 | ! |
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| 347 | !-- equivalent to r(nzt_mg(l)+1,:,: ) = r(nzt_mg(l),:,:) |
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| 348 | r(nzt_mg(l)+1,:,: ) = r(ind_even_odd,:,:) |
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[1575] | 349 | ELSE |
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| 350 | r(nzt_mg(l)+1,:,: ) = 0.0_wp |
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| 351 | ENDIF |
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| 352 | |
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| 353 | CALL cpu_log( log_point_s(53), 'resid', 'stop' ) |
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| 354 | |
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[1931] | 355 | END SUBROUTINE resid |
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[1575] | 356 | |
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| 357 | |
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| 358 | !------------------------------------------------------------------------------! |
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| 359 | ! Description: |
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| 360 | ! ------------ |
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[1682] | 361 | !> Interpolates the residual on the next coarser grid with "full weighting" |
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| 362 | !> scheme |
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[1575] | 363 | !------------------------------------------------------------------------------! |
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[1931] | 364 | SUBROUTINE restrict( f_mg, r ) |
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[1575] | 365 | |
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[1682] | 366 | |
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[1575] | 367 | USE control_parameters, & |
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[2696] | 368 | ONLY: bc_lr_cyc, bc_ns_cyc, ibc_p_b, ibc_p_t |
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[1575] | 369 | |
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| 370 | USE indices, & |
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[1898] | 371 | ONLY: nxl_mg, nxr_mg, nys_mg, nyn_mg, nzb, nzt_mg |
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[1575] | 372 | |
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| 373 | IMPLICIT NONE |
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| 374 | |
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[1898] | 375 | INTEGER(iwp) :: i !< index variable along x on finer grid |
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| 376 | INTEGER(iwp) :: ic !< index variable along x on coarser grid |
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| 377 | INTEGER(iwp) :: j !< index variable along y on finer grid |
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| 378 | INTEGER(iwp) :: jc !< index variable along y on coarser grid |
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| 379 | INTEGER(iwp) :: k !< index variable along z on finer grid |
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| 380 | INTEGER(iwp) :: kc !< index variable along z on coarser grid |
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| 381 | INTEGER(iwp) :: l !< index indicating finer grid level |
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| 382 | INTEGER(iwp) :: km1 !< index variable along z dimension (k-1 on finer level) |
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| 383 | INTEGER(iwp) :: kp1 !< index variable along z dimension (k+1 on finer level) |
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[1575] | 384 | |
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| 385 | |
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| 386 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
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| 387 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
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[1898] | 388 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: & |
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| 389 | f_mg !< Residual on coarser grid level |
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[1575] | 390 | |
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| 391 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level+1)+1, & |
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| 392 | nys_mg(grid_level+1)-1:nyn_mg(grid_level+1)+1, & |
---|
[1898] | 393 | nxl_mg(grid_level+1)-1:nxr_mg(grid_level+1)+1) :: & |
---|
| 394 | r !< Residual on finer grid level |
---|
[1575] | 395 | |
---|
| 396 | ! |
---|
| 397 | !-- Interpolate the residual |
---|
| 398 | l = grid_level |
---|
| 399 | |
---|
| 400 | CALL cpu_log( log_point_s(54), 'restrict', 'start' ) |
---|
| 401 | ! |
---|
[1898] | 402 | !-- No wall treatment |
---|
| 403 | !$OMP PARALLEL PRIVATE (i,j,k,ic,jc,kc,km1,kp1) |
---|
[2073] | 404 | !$OMP DO SCHEDULE( STATIC ) |
---|
[1898] | 405 | DO ic = nxl_mg(l), nxr_mg(l) |
---|
| 406 | i = 2*ic |
---|
| 407 | DO jc = nys_mg(l), nyn_mg(l) |
---|
[1575] | 408 | ! |
---|
[1898] | 409 | !-- Calculation for the first point along k |
---|
| 410 | j = 2*jc |
---|
| 411 | ! |
---|
| 412 | !-- Calculation for the other points along k |
---|
| 413 | !DIR$ IVDEP |
---|
| 414 | DO k = ind_even_odd+1, nzt_mg(l+1) ! Fine grid at this point |
---|
| 415 | km1 = k-ind_even_odd-1 |
---|
[1575] | 416 | kp1 = k-ind_even_odd |
---|
[1898] | 417 | kc = k-ind_even_odd ! Coarse grid index |
---|
[1575] | 418 | |
---|
[1898] | 419 | f_mg(kc,jc,ic) = 1.0_wp / 64.0_wp * ( & |
---|
| 420 | 8.0_wp * r(k,j,i) & |
---|
| 421 | + 4.0_wp * ( r(k,j,i-1) + r(k,j,i+1) + & |
---|
| 422 | r(k,j+1,i) + r(k,j-1,i) ) & |
---|
| 423 | + 2.0_wp * ( r(k,j-1,i-1) + r(k,j+1,i-1) + & |
---|
| 424 | r(k,j-1,i+1) + r(k,j+1,i+1) ) & |
---|
| 425 | + 4.0_wp * r(km1,j,i) & |
---|
| 426 | + 2.0_wp * ( r(km1,j,i-1) + r(km1,j,i+1) + & |
---|
| 427 | r(km1,j+1,i) + r(km1,j-1,i) ) & |
---|
| 428 | + ( r(km1,j-1,i-1) + r(km1,j+1,i-1) + & |
---|
| 429 | r(km1,j-1,i+1) + r(km1,j+1,i+1) ) & |
---|
| 430 | + 4.0_wp * r(kp1,j,i) & |
---|
| 431 | + 2.0_wp * ( r(kp1,j,i-1) + r(kp1,j,i+1) + & |
---|
| 432 | r(kp1,j+1,i) + r(kp1,j-1,i) ) & |
---|
| 433 | + ( r(kp1,j-1,i-1) + r(kp1,j+1,i-1) + & |
---|
| 434 | r(kp1,j-1,i+1) + r(kp1,j+1,i+1) ) & |
---|
| 435 | ) |
---|
[1575] | 436 | ENDDO |
---|
| 437 | ENDDO |
---|
[1898] | 438 | ENDDO |
---|
[2073] | 439 | !$OMP ENDDO |
---|
[1898] | 440 | !$OMP END PARALLEL |
---|
[1575] | 441 | |
---|
| 442 | ! |
---|
[1898] | 443 | !-- Ghost point exchange |
---|
| 444 | CALL exchange_horiz( f_mg, 1) |
---|
[1575] | 445 | ! |
---|
| 446 | !-- Horizontal boundary conditions |
---|
| 447 | IF ( .NOT. bc_lr_cyc ) THEN |
---|
[3182] | 448 | IF ( bc_dirichlet_l .OR. bc_radiation_l ) THEN |
---|
[1762] | 449 | f_mg(:,:,nxl_mg(l)-1) = f_mg(:,:,nxl_mg(l)) |
---|
| 450 | ENDIF |
---|
[3182] | 451 | IF ( bc_dirichlet_r .OR. bc_radiation_r ) THEN |
---|
[1762] | 452 | f_mg(:,:,nxr_mg(l)+1) = f_mg(:,:,nxr_mg(l)) |
---|
| 453 | ENDIF |
---|
[1575] | 454 | ENDIF |
---|
| 455 | |
---|
| 456 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
[3182] | 457 | IF ( bc_dirichlet_n .OR. bc_radiation_n ) THEN |
---|
[1762] | 458 | f_mg(:,nyn_mg(l)+1,:) = f_mg(:,nyn_mg(l),:) |
---|
| 459 | ENDIF |
---|
[3182] | 460 | IF ( bc_dirichlet_s .OR. bc_radiation_s ) THEN |
---|
[1762] | 461 | f_mg(:,nys_mg(l)-1,:) = f_mg(:,nys_mg(l),:) |
---|
| 462 | ENDIF |
---|
[1575] | 463 | ENDIF |
---|
| 464 | |
---|
| 465 | ! |
---|
| 466 | !-- Boundary conditions at bottom and top of the domain. |
---|
| 467 | !-- These points are not handled by the above loop. Points may be within |
---|
[1898] | 468 | !-- buildings, but that doesn't matter. Remark: f_mg is ordered sequentielly |
---|
| 469 | !-- after interpolation on coarse grid (is ordered in odd-even blocks further |
---|
| 470 | !-- below). |
---|
[1575] | 471 | IF ( ibc_p_b == 1 ) THEN |
---|
| 472 | f_mg(nzb,:,: ) = f_mg(nzb+1,:,:) |
---|
| 473 | ELSE |
---|
| 474 | f_mg(nzb,:,: ) = 0.0_wp |
---|
| 475 | ENDIF |
---|
| 476 | |
---|
| 477 | IF ( ibc_p_t == 1 ) THEN |
---|
| 478 | f_mg(nzt_mg(l)+1,:,: ) = f_mg(nzt_mg(l),:,:) |
---|
| 479 | ELSE |
---|
| 480 | f_mg(nzt_mg(l)+1,:,: ) = 0.0_wp |
---|
| 481 | ENDIF |
---|
| 482 | |
---|
| 483 | CALL cpu_log( log_point_s(54), 'restrict', 'stop' ) |
---|
| 484 | ! |
---|
[1898] | 485 | !-- Since residual is in sequential order after interpolation, an additional |
---|
| 486 | !-- sorting in odd-even blocks along z dimension is required at this point. |
---|
[1575] | 487 | CALL sort_k_to_even_odd_blocks( f_mg , l) |
---|
| 488 | |
---|
[1931] | 489 | END SUBROUTINE restrict |
---|
[1575] | 490 | |
---|
| 491 | |
---|
| 492 | !------------------------------------------------------------------------------! |
---|
| 493 | ! Description: |
---|
| 494 | ! ------------ |
---|
[1682] | 495 | !> Interpolates the correction of the perturbation pressure |
---|
| 496 | !> to the next finer grid. |
---|
[1575] | 497 | !------------------------------------------------------------------------------! |
---|
[1931] | 498 | SUBROUTINE prolong( p, temp ) |
---|
[1575] | 499 | |
---|
[1682] | 500 | |
---|
[1575] | 501 | USE control_parameters, & |
---|
[2696] | 502 | ONLY: bc_lr_cyc, bc_ns_cyc, ibc_p_b, ibc_p_t |
---|
[1575] | 503 | USE indices, & |
---|
| 504 | ONLY: nxl_mg, nxr_mg, nys_mg, nyn_mg, nzb, nzt_mg |
---|
| 505 | |
---|
| 506 | IMPLICIT NONE |
---|
| 507 | |
---|
[1898] | 508 | INTEGER(iwp) :: i !< index variable along x on coarser grid level |
---|
| 509 | INTEGER(iwp) :: j !< index variable along y on coarser grid level |
---|
| 510 | INTEGER(iwp) :: k !< index variable along z on coarser grid level |
---|
| 511 | INTEGER(iwp) :: l !< index indicating finer grid level |
---|
| 512 | INTEGER(iwp) :: kp1 !< index variable along z |
---|
| 513 | INTEGER(iwp) :: ke !< index for prolog even |
---|
| 514 | INTEGER(iwp) :: ko !< index for prolog odd |
---|
[1575] | 515 | |
---|
| 516 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level-1)+1, & |
---|
| 517 | nys_mg(grid_level-1)-1:nyn_mg(grid_level-1)+1, & |
---|
[1898] | 518 | nxl_mg(grid_level-1)-1:nxr_mg(grid_level-1)+1 ) :: & |
---|
| 519 | p !< perturbation pressure on coarser grid level |
---|
[1575] | 520 | |
---|
| 521 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
| 522 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
[1898] | 523 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: & |
---|
| 524 | temp !< perturbation pressure on finer grid level |
---|
[1575] | 525 | |
---|
| 526 | |
---|
| 527 | CALL cpu_log( log_point_s(55), 'prolong', 'start' ) |
---|
| 528 | |
---|
| 529 | ! |
---|
| 530 | !-- First, store elements of the coarser grid on the next finer grid |
---|
| 531 | l = grid_level |
---|
| 532 | ind_even_odd = even_odd_level(grid_level-1) |
---|
| 533 | |
---|
| 534 | !$OMP PARALLEL PRIVATE (i,j,k,kp1,ke,ko) |
---|
| 535 | !$OMP DO |
---|
| 536 | DO i = nxl_mg(l-1), nxr_mg(l-1) |
---|
| 537 | DO j = nys_mg(l-1), nyn_mg(l-1) |
---|
| 538 | |
---|
| 539 | !DIR$ IVDEP |
---|
| 540 | DO k = ind_even_odd+1, nzt_mg(l-1) |
---|
| 541 | kp1 = k - ind_even_odd |
---|
| 542 | ke = 2 * ( k-ind_even_odd - 1 ) + 1 |
---|
| 543 | ko = 2 * k - 1 |
---|
| 544 | ! |
---|
| 545 | !-- Points of the coarse grid are directly stored on the next finer |
---|
| 546 | !-- grid |
---|
| 547 | temp(ko,2*j,2*i) = p(k,j,i) |
---|
| 548 | ! |
---|
| 549 | !-- Points between two coarse-grid points |
---|
| 550 | temp(ko,2*j,2*i+1) = 0.5_wp * ( p(k,j,i) + p(k,j,i+1) ) |
---|
| 551 | temp(ko,2*j+1,2*i) = 0.5_wp * ( p(k,j,i) + p(k,j+1,i) ) |
---|
| 552 | temp(ke,2*j,2*i) = 0.5_wp * ( p(k,j,i) + p(kp1,j,i) ) |
---|
| 553 | ! |
---|
| 554 | !-- Points in the center of the planes stretched by four points |
---|
| 555 | !-- of the coarse grid cube |
---|
| 556 | temp(ko,2*j+1,2*i+1) = 0.25_wp * ( p(k,j,i) + p(k,j,i+1) + & |
---|
| 557 | p(k,j+1,i) + p(k,j+1,i+1) ) |
---|
| 558 | temp(ke,2*j,2*i+1) = 0.25_wp * ( p(k,j,i) + p(k,j,i+1) + & |
---|
| 559 | p(kp1,j,i) + p(kp1,j,i+1) ) |
---|
| 560 | temp(ke,2*j+1,2*i) = 0.25_wp * ( p(k,j,i) + p(k,j+1,i) + & |
---|
| 561 | p(kp1,j,i) + p(kp1,j+1,i) ) |
---|
| 562 | ! |
---|
| 563 | !-- Points in the middle of coarse grid cube |
---|
| 564 | temp(ke,2*j+1,2*i+1) = 0.125_wp * & |
---|
| 565 | ( p(k,j,i) + p(k,j,i+1) + & |
---|
| 566 | p(k,j+1,i) + p(k,j+1,i+1) + & |
---|
| 567 | p(kp1,j,i) + p(kp1,j,i+1) + & |
---|
| 568 | p(kp1,j+1,i) + p(kp1,j+1,i+1) ) |
---|
[1898] | 569 | |
---|
[1575] | 570 | ENDDO |
---|
| 571 | |
---|
| 572 | !DIR$ IVDEP |
---|
| 573 | DO k = nzb+1, ind_even_odd |
---|
| 574 | kp1 = k + ind_even_odd + 1 |
---|
| 575 | ke = 2 * k |
---|
| 576 | ko = 2 * ( k + ind_even_odd ) |
---|
| 577 | ! |
---|
| 578 | !-- Points of the coarse grid are directly stored on the next finer |
---|
| 579 | !-- grid |
---|
| 580 | temp(ko,2*j,2*i) = p(k,j,i) |
---|
| 581 | ! |
---|
| 582 | !-- Points between two coarse-grid points |
---|
| 583 | temp(ko,2*j,2*i+1) = 0.5_wp * ( p(k,j,i) + p(k,j,i+1) ) |
---|
| 584 | temp(ko,2*j+1,2*i) = 0.5_wp * ( p(k,j,i) + p(k,j+1,i) ) |
---|
| 585 | temp(ke,2*j,2*i) = 0.5_wp * ( p(k,j,i) + p(kp1,j,i) ) |
---|
| 586 | ! |
---|
| 587 | !-- Points in the center of the planes stretched by four points |
---|
| 588 | !-- of the coarse grid cube |
---|
| 589 | temp(ko,2*j+1,2*i+1) = 0.25_wp * ( p(k,j,i) + p(k,j,i+1) + & |
---|
| 590 | p(k,j+1,i) + p(k,j+1,i+1) ) |
---|
| 591 | temp(ke,2*j,2*i+1) = 0.25_wp * ( p(k,j,i) + p(k,j,i+1) + & |
---|
| 592 | p(kp1,j,i) + p(kp1,j,i+1) ) |
---|
| 593 | temp(ke,2*j+1,2*i) = 0.25_wp * ( p(k,j,i) + p(k,j+1,i) + & |
---|
| 594 | p(kp1,j,i) + p(kp1,j+1,i) ) |
---|
| 595 | ! |
---|
| 596 | !-- Points in the middle of coarse grid cube |
---|
| 597 | temp(ke,2*j+1,2*i+1) = 0.125_wp * & |
---|
| 598 | ( p(k,j,i) + p(k,j,i+1) + & |
---|
| 599 | p(k,j+1,i) + p(k,j+1,i+1) + & |
---|
| 600 | p(kp1,j,i) + p(kp1,j,i+1) + & |
---|
| 601 | p(kp1,j+1,i) + p(kp1,j+1,i+1) ) |
---|
[1898] | 602 | |
---|
[1575] | 603 | ENDDO |
---|
| 604 | |
---|
| 605 | ENDDO |
---|
| 606 | ENDDO |
---|
| 607 | !$OMP END PARALLEL |
---|
| 608 | |
---|
| 609 | ind_even_odd = even_odd_level(grid_level) |
---|
| 610 | ! |
---|
| 611 | !-- Horizontal boundary conditions |
---|
| 612 | CALL exchange_horiz( temp, 1) |
---|
| 613 | |
---|
| 614 | IF ( .NOT. bc_lr_cyc ) THEN |
---|
[3182] | 615 | IF ( bc_dirichlet_l .OR. bc_radiation_l ) THEN |
---|
[1762] | 616 | temp(:,:,nxl_mg(l)-1) = temp(:,:,nxl_mg(l)) |
---|
| 617 | ENDIF |
---|
[3182] | 618 | IF ( bc_dirichlet_r .OR. bc_radiation_r ) THEN |
---|
[1762] | 619 | temp(:,:,nxr_mg(l)+1) = temp(:,:,nxr_mg(l)) |
---|
| 620 | ENDIF |
---|
[1575] | 621 | ENDIF |
---|
| 622 | |
---|
| 623 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
[3182] | 624 | IF ( bc_dirichlet_n .OR. bc_radiation_n ) THEN |
---|
[1762] | 625 | temp(:,nyn_mg(l)+1,:) = temp(:,nyn_mg(l),:) |
---|
| 626 | ENDIF |
---|
[3182] | 627 | IF ( bc_dirichlet_s .OR. bc_radiation_s ) THEN |
---|
[1762] | 628 | temp(:,nys_mg(l)-1,:) = temp(:,nys_mg(l),:) |
---|
| 629 | ENDIF |
---|
[1575] | 630 | ENDIF |
---|
| 631 | |
---|
| 632 | ! |
---|
| 633 | !-- Bottom and top boundary conditions |
---|
| 634 | IF ( ibc_p_b == 1 ) THEN |
---|
[1898] | 635 | ! |
---|
| 636 | !-- equivalent to temp(nzb,:,: ) = temp(nzb+1,:,:) |
---|
[1575] | 637 | temp(nzb,:,: ) = temp(ind_even_odd+1,:,:) |
---|
| 638 | ELSE |
---|
| 639 | temp(nzb,:,: ) = 0.0_wp |
---|
| 640 | ENDIF |
---|
| 641 | |
---|
| 642 | IF ( ibc_p_t == 1 ) THEN |
---|
[1898] | 643 | ! |
---|
| 644 | !-- equivalent to temp(nzt_mg(l)+1,:,: ) = temp(nzt_mg(l),:,:) |
---|
[1575] | 645 | temp(nzt_mg(l)+1,:,: ) = temp(ind_even_odd,:,:) |
---|
| 646 | ELSE |
---|
| 647 | temp(nzt_mg(l)+1,:,: ) = 0.0_wp |
---|
| 648 | ENDIF |
---|
| 649 | |
---|
| 650 | CALL cpu_log( log_point_s(55), 'prolong', 'stop' ) |
---|
| 651 | |
---|
[1931] | 652 | END SUBROUTINE prolong |
---|
[1575] | 653 | |
---|
| 654 | |
---|
| 655 | !------------------------------------------------------------------------------! |
---|
| 656 | ! Description: |
---|
| 657 | ! ------------ |
---|
[1682] | 658 | !> Relaxation method for the multigrid scheme. A Gauss-Seidel iteration with |
---|
| 659 | !> 3D-Red-Black decomposition (GS-RB) is used. |
---|
[1575] | 660 | !------------------------------------------------------------------------------! |
---|
[1931] | 661 | SUBROUTINE redblack( f_mg, p_mg ) |
---|
[1575] | 662 | |
---|
[1682] | 663 | |
---|
[1575] | 664 | USE arrays_3d, & |
---|
[3241] | 665 | ONLY: rho_air_mg |
---|
[1575] | 666 | |
---|
| 667 | USE control_parameters, & |
---|
[2696] | 668 | ONLY: bc_lr_cyc, bc_ns_cyc, ibc_p_b, ibc_p_t, ngsrb |
---|
[1575] | 669 | |
---|
| 670 | USE grid_variables, & |
---|
| 671 | ONLY: ddx2_mg, ddy2_mg |
---|
| 672 | |
---|
| 673 | USE indices, & |
---|
[1898] | 674 | ONLY: nxl_mg, nxr_mg, nys_mg, nyn_mg, nzb, nzt_mg |
---|
[1575] | 675 | |
---|
| 676 | IMPLICIT NONE |
---|
| 677 | |
---|
[1898] | 678 | INTEGER(iwp) :: color !< grid point color, either red or black |
---|
| 679 | INTEGER(iwp) :: i !< index variable along x |
---|
| 680 | INTEGER(iwp) :: ic !< index variable along x |
---|
| 681 | INTEGER(iwp) :: j !< index variable along y |
---|
| 682 | INTEGER(iwp) :: jc !< index variable along y |
---|
| 683 | INTEGER(iwp) :: jj !< index variable along y |
---|
| 684 | INTEGER(iwp) :: k !< index variable along z |
---|
| 685 | INTEGER(iwp) :: l !< grid level |
---|
| 686 | INTEGER(iwp) :: n !< loop variable GauÃ-Seidel iterations |
---|
| 687 | INTEGER(iwp) :: km1 !< index variable (k-1) |
---|
| 688 | INTEGER(iwp) :: kp1 !< index variable (k+1) |
---|
[1575] | 689 | |
---|
[1898] | 690 | LOGICAL :: unroll !< flag indicating whether loop unrolling is possible |
---|
[1575] | 691 | |
---|
| 692 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
| 693 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
[1898] | 694 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: & |
---|
| 695 | f_mg !< residual of perturbation pressure |
---|
[1575] | 696 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
| 697 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
[1898] | 698 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: & |
---|
| 699 | p_mg !< perturbation pressure |
---|
[1575] | 700 | |
---|
| 701 | l = grid_level |
---|
| 702 | |
---|
[1898] | 703 | unroll = ( MOD( nyn_mg(l)-nys_mg(l)+1, 4 ) == 0 .AND. & |
---|
[1575] | 704 | MOD( nxr_mg(l)-nxl_mg(l)+1, 2 ) == 0 ) |
---|
| 705 | |
---|
| 706 | DO n = 1, ngsrb |
---|
| 707 | |
---|
| 708 | DO color = 1, 2 |
---|
| 709 | |
---|
[1898] | 710 | IF ( .NOT. unroll ) THEN |
---|
[1575] | 711 | |
---|
[1898] | 712 | CALL cpu_log( log_point_s(36), 'redblack_no_unroll_f', 'start' ) |
---|
[1575] | 713 | ! |
---|
[1898] | 714 | !-- Without unrolling of loops, no cache optimization |
---|
| 715 | !$OMP PARALLEL PRIVATE (i,j,k,km1,kp1) |
---|
| 716 | !$OMP DO |
---|
| 717 | DO i = nxl_mg(l), nxr_mg(l), 2 |
---|
| 718 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
---|
| 719 | !DIR$ IVDEP |
---|
| 720 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
| 721 | km1 = k-ind_even_odd-1 |
---|
| 722 | kp1 = k-ind_even_odd |
---|
| 723 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
[2232] | 724 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
[1898] | 725 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
[2232] | 726 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
[1898] | 727 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
[1575] | 728 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
| 729 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
[1898] | 730 | - f_mg(k,j,i) ) |
---|
[1575] | 731 | ENDDO |
---|
| 732 | ENDDO |
---|
[1898] | 733 | ENDDO |
---|
[1575] | 734 | |
---|
[1898] | 735 | !$OMP DO |
---|
| 736 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
---|
| 737 | DO j = nys_mg(l) + (color-1), nyn_mg(l), 2 |
---|
| 738 | !DIR$ IVDEP |
---|
| 739 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
| 740 | km1 = k-ind_even_odd-1 |
---|
| 741 | kp1 = k-ind_even_odd |
---|
| 742 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
[2232] | 743 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
[1898] | 744 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
[2232] | 745 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
[1575] | 746 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
| 747 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
| 748 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
[1898] | 749 | - f_mg(k,j,i) ) |
---|
[1575] | 750 | ENDDO |
---|
| 751 | ENDDO |
---|
[1898] | 752 | ENDDO |
---|
[1575] | 753 | |
---|
[1898] | 754 | !$OMP DO |
---|
| 755 | DO i = nxl_mg(l), nxr_mg(l), 2 |
---|
| 756 | DO j = nys_mg(l) + (color-1), nyn_mg(l), 2 |
---|
| 757 | !DIR$ IVDEP |
---|
| 758 | DO k = nzb+1, ind_even_odd |
---|
| 759 | km1 = k+ind_even_odd |
---|
| 760 | kp1 = k+ind_even_odd+1 |
---|
| 761 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
[2232] | 762 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
[1575] | 763 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
[2232] | 764 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
[1575] | 765 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
| 766 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
| 767 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
[1898] | 768 | - f_mg(k,j,i) ) |
---|
[1575] | 769 | ENDDO |
---|
| 770 | ENDDO |
---|
[1898] | 771 | ENDDO |
---|
[1575] | 772 | |
---|
[1898] | 773 | !$OMP DO |
---|
| 774 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
---|
| 775 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
---|
| 776 | !DIR$ IVDEP |
---|
| 777 | DO k = nzb+1, ind_even_odd |
---|
| 778 | km1 = k+ind_even_odd |
---|
| 779 | kp1 = k+ind_even_odd+1 |
---|
| 780 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
[2232] | 781 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
[1575] | 782 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
[2232] | 783 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
[1575] | 784 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
| 785 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
| 786 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
[1898] | 787 | - f_mg(k,j,i) ) |
---|
[1575] | 788 | ENDDO |
---|
| 789 | ENDDO |
---|
[1898] | 790 | ENDDO |
---|
| 791 | !$OMP END PARALLEL |
---|
[1575] | 792 | |
---|
[1898] | 793 | CALL cpu_log( log_point_s(36), 'redblack_no_unroll_f', 'stop' ) |
---|
[1575] | 794 | |
---|
[1898] | 795 | ELSE |
---|
[1575] | 796 | ! |
---|
[1898] | 797 | !-- Loop unrolling along y, only one i loop for better cache use |
---|
| 798 | CALL cpu_log( log_point_s(38), 'redblack_unroll_f', 'start' ) |
---|
[1575] | 799 | |
---|
[1898] | 800 | !$OMP PARALLEL PRIVATE (i,j,k,ic,jc,km1,kp1,jj) |
---|
| 801 | !$OMP DO |
---|
| 802 | DO ic = nxl_mg(l), nxr_mg(l), 2 |
---|
| 803 | DO jc = nys_mg(l), nyn_mg(l), 4 |
---|
| 804 | i = ic |
---|
| 805 | jj = jc+2-color |
---|
| 806 | !DIR$ IVDEP |
---|
| 807 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
| 808 | km1 = k-ind_even_odd-1 |
---|
| 809 | kp1 = k-ind_even_odd |
---|
| 810 | j = jj |
---|
| 811 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
[2232] | 812 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
[1575] | 813 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
[2232] | 814 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
[1575] | 815 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
| 816 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
| 817 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
[1898] | 818 | - f_mg(k,j,i) ) |
---|
| 819 | j = jj+2 |
---|
| 820 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
[2232] | 821 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
[1575] | 822 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
[2232] | 823 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
[1575] | 824 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
| 825 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
| 826 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
[1898] | 827 | - f_mg(k,j,i) ) |
---|
| 828 | ENDDO |
---|
[1575] | 829 | |
---|
[1898] | 830 | i = ic+1 |
---|
| 831 | jj = jc+color-1 |
---|
| 832 | !DIR$ IVDEP |
---|
| 833 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
| 834 | km1 = k-ind_even_odd-1 |
---|
| 835 | kp1 = k-ind_even_odd |
---|
| 836 | j = jj |
---|
| 837 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
[2232] | 838 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
[1898] | 839 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
[2232] | 840 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
[1575] | 841 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
| 842 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
| 843 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
[1898] | 844 | - f_mg(k,j,i) ) |
---|
| 845 | j = jj+2 |
---|
| 846 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
[2232] | 847 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
[1898] | 848 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
[2232] | 849 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
[1898] | 850 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
[1575] | 851 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
| 852 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
[1898] | 853 | - f_mg(k,j,i) ) |
---|
| 854 | ENDDO |
---|
[1575] | 855 | |
---|
[1898] | 856 | i = ic |
---|
| 857 | jj = jc+color-1 |
---|
| 858 | !DIR$ IVDEP |
---|
| 859 | DO k = nzb+1, ind_even_odd |
---|
| 860 | km1 = k+ind_even_odd |
---|
| 861 | kp1 = k+ind_even_odd+1 |
---|
| 862 | j = jj |
---|
| 863 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
[2232] | 864 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
[1898] | 865 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
[2232] | 866 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
[1898] | 867 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
[1575] | 868 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
| 869 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
[1898] | 870 | - f_mg(k,j,i) ) |
---|
| 871 | j = jj+2 |
---|
| 872 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
[2232] | 873 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
[1575] | 874 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
[2232] | 875 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
[1575] | 876 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
| 877 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
| 878 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
[1898] | 879 | - f_mg(k,j,i) ) |
---|
| 880 | ENDDO |
---|
[1575] | 881 | |
---|
[1898] | 882 | i = ic+1 |
---|
| 883 | jj = jc+2-color |
---|
| 884 | !DIR$ IVDEP |
---|
| 885 | DO k = nzb+1, ind_even_odd |
---|
| 886 | km1 = k+ind_even_odd |
---|
| 887 | kp1 = k+ind_even_odd+1 |
---|
| 888 | j = jj |
---|
| 889 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
[2232] | 890 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
[1898] | 891 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
[2232] | 892 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
[1575] | 893 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
| 894 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
| 895 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
[1898] | 896 | - f_mg(k,j,i) ) |
---|
| 897 | j = jj+2 |
---|
| 898 | p_mg(k,j,i) = 1.0_wp / f1_mg_b(k,l) * ( & |
---|
[2232] | 899 | rho_air_mg(k,l) * ddx2_mg(l) * & |
---|
[1575] | 900 | ( p_mg(k,j,i+1) + p_mg(k,j,i-1) ) & |
---|
[2232] | 901 | + rho_air_mg(k,l) * ddy2_mg(l) * & |
---|
[1898] | 902 | ( p_mg(k,j+1,i) + p_mg(k,j-1,i) ) & |
---|
[1575] | 903 | + f2_mg_b(k,l) * p_mg(kp1,j,i) & |
---|
| 904 | + f3_mg_b(k,l) * p_mg(km1,j,i) & |
---|
[1898] | 905 | - f_mg(k,j,i) ) |
---|
[1575] | 906 | ENDDO |
---|
| 907 | |
---|
| 908 | ENDDO |
---|
[1898] | 909 | ENDDO |
---|
| 910 | !$OMP END PARALLEL |
---|
[1575] | 911 | |
---|
[1898] | 912 | CALL cpu_log( log_point_s(38), 'redblack_unroll_f', 'stop' ) |
---|
[1575] | 913 | |
---|
| 914 | ENDIF |
---|
| 915 | |
---|
| 916 | ! |
---|
| 917 | !-- Horizontal boundary conditions |
---|
| 918 | CALL special_exchange_horiz( p_mg, color ) |
---|
| 919 | |
---|
[1762] | 920 | IF ( .NOT. bc_lr_cyc ) THEN |
---|
[3182] | 921 | IF ( bc_dirichlet_l .OR. bc_radiation_l ) THEN |
---|
[1575] | 922 | p_mg(:,:,nxl_mg(l)-1) = p_mg(:,:,nxl_mg(l)) |
---|
| 923 | ENDIF |
---|
[3182] | 924 | IF ( bc_dirichlet_r .OR. bc_radiation_r ) THEN |
---|
[1575] | 925 | p_mg(:,:,nxr_mg(l)+1) = p_mg(:,:,nxr_mg(l)) |
---|
| 926 | ENDIF |
---|
| 927 | ENDIF |
---|
| 928 | |
---|
| 929 | IF ( .NOT. bc_ns_cyc ) THEN |
---|
[3182] | 930 | IF ( bc_dirichlet_n .OR. bc_radiation_n ) THEN |
---|
[1575] | 931 | p_mg(:,nyn_mg(l)+1,:) = p_mg(:,nyn_mg(l),:) |
---|
| 932 | ENDIF |
---|
[3182] | 933 | IF ( bc_dirichlet_s .OR. bc_radiation_s ) THEN |
---|
[1575] | 934 | p_mg(:,nys_mg(l)-1,:) = p_mg(:,nys_mg(l),:) |
---|
| 935 | ENDIF |
---|
| 936 | ENDIF |
---|
| 937 | |
---|
| 938 | ! |
---|
| 939 | !-- Bottom and top boundary conditions |
---|
| 940 | IF ( ibc_p_b == 1 ) THEN |
---|
[1898] | 941 | ! |
---|
| 942 | !-- equivalent to p_mg(nzb,:,: ) = p_mg(nzb+1,:,:) |
---|
[1575] | 943 | p_mg(nzb,:,: ) = p_mg(ind_even_odd+1,:,:) |
---|
| 944 | ELSE |
---|
| 945 | p_mg(nzb,:,: ) = 0.0_wp |
---|
| 946 | ENDIF |
---|
| 947 | |
---|
| 948 | IF ( ibc_p_t == 1 ) THEN |
---|
[1898] | 949 | ! |
---|
| 950 | !-- equivalent to p_mg(nzt_mg(l)+1,:,: ) = p_mg(nzt_mg(l),:,:) |
---|
[1575] | 951 | p_mg(nzt_mg(l)+1,:,: ) = p_mg(ind_even_odd,:,:) |
---|
| 952 | ELSE |
---|
| 953 | p_mg(nzt_mg(l)+1,:,: ) = 0.0_wp |
---|
| 954 | ENDIF |
---|
| 955 | |
---|
| 956 | ENDDO |
---|
[1898] | 957 | |
---|
[1575] | 958 | ENDDO |
---|
| 959 | |
---|
[1931] | 960 | END SUBROUTINE redblack |
---|
[1575] | 961 | |
---|
| 962 | |
---|
| 963 | !------------------------------------------------------------------------------! |
---|
| 964 | ! Description: |
---|
| 965 | ! ------------ |
---|
[1682] | 966 | !> Sort k-Dimension from sequential into blocks of even and odd. |
---|
| 967 | !> This is required to vectorize the red-black subroutine. |
---|
| 968 | !> Version for 3D-REAL arrays |
---|
[1575] | 969 | !------------------------------------------------------------------------------! |
---|
[1682] | 970 | SUBROUTINE sort_k_to_even_odd_blocks( p_mg , glevel ) |
---|
[1575] | 971 | |
---|
[1682] | 972 | |
---|
[1575] | 973 | USE indices, & |
---|
| 974 | ONLY: nxl_mg, nxr_mg, nys_mg, nyn_mg, nzb, nzt_mg |
---|
| 975 | |
---|
| 976 | IMPLICIT NONE |
---|
| 977 | |
---|
[1898] | 978 | INTEGER(iwp), INTENT(IN) :: glevel !< grid level |
---|
[1575] | 979 | |
---|
| 980 | REAL(wp), DIMENSION(nzb:nzt_mg(glevel)+1, & |
---|
| 981 | nys_mg(glevel)-1:nyn_mg(glevel)+1, & |
---|
[1898] | 982 | nxl_mg(glevel)-1:nxr_mg(glevel)+1) :: & |
---|
| 983 | p_mg !< array to be sorted |
---|
[1575] | 984 | ! |
---|
| 985 | !-- Local variables |
---|
[1898] | 986 | INTEGER(iwp) :: i !< index variable along x |
---|
| 987 | INTEGER(iwp) :: j !< index variable along y |
---|
| 988 | INTEGER(iwp) :: k !< index variable along z |
---|
| 989 | INTEGER(iwp) :: l !< grid level |
---|
| 990 | INTEGER(iwp) :: ind !< index variable along z |
---|
| 991 | REAL(wp), DIMENSION(nzb:nzt_mg(glevel)+1) :: tmp !< odd-even sorted temporary array |
---|
[1575] | 992 | |
---|
| 993 | |
---|
| 994 | CALL cpu_log( log_point_s(52), 'sort_k_to_even_odd', 'start' ) |
---|
| 995 | |
---|
| 996 | l = glevel |
---|
| 997 | ind_even_odd = even_odd_level(l) |
---|
| 998 | |
---|
| 999 | !$OMP PARALLEL PRIVATE (i,j,k,ind,tmp) |
---|
| 1000 | !$OMP DO |
---|
| 1001 | DO i = nxl_mg(l)-1, nxr_mg(l)+1 |
---|
| 1002 | DO j = nys_mg(l)-1, nyn_mg(l)+1 |
---|
| 1003 | |
---|
| 1004 | ! |
---|
| 1005 | !-- Sort the data with even k index |
---|
| 1006 | ind = nzb-1 |
---|
| 1007 | DO k = nzb, nzt_mg(l), 2 |
---|
| 1008 | ind = ind + 1 |
---|
| 1009 | tmp(ind) = p_mg(k,j,i) |
---|
| 1010 | ENDDO |
---|
| 1011 | ! |
---|
| 1012 | !-- Sort the data with odd k index |
---|
| 1013 | DO k = nzb+1, nzt_mg(l)+1, 2 |
---|
| 1014 | ind = ind + 1 |
---|
| 1015 | tmp(ind) = p_mg(k,j,i) |
---|
| 1016 | ENDDO |
---|
| 1017 | |
---|
| 1018 | p_mg(:,j,i) = tmp |
---|
| 1019 | |
---|
| 1020 | ENDDO |
---|
| 1021 | ENDDO |
---|
| 1022 | !$OMP END PARALLEL |
---|
| 1023 | |
---|
| 1024 | CALL cpu_log( log_point_s(52), 'sort_k_to_even_odd', 'stop' ) |
---|
| 1025 | |
---|
| 1026 | END SUBROUTINE sort_k_to_even_odd_blocks |
---|
| 1027 | |
---|
| 1028 | |
---|
| 1029 | !------------------------------------------------------------------------------! |
---|
| 1030 | ! Description: |
---|
| 1031 | ! ------------ |
---|
[1682] | 1032 | !> Sort k-Dimension from sequential into blocks of even and odd. |
---|
| 1033 | !> This is required to vectorize the red-black subroutine. |
---|
| 1034 | !> Version for 1D-REAL arrays |
---|
[1575] | 1035 | !------------------------------------------------------------------------------! |
---|
[1682] | 1036 | SUBROUTINE sort_k_to_even_odd_blocks_1d( f_mg, f_mg_b, glevel ) |
---|
[1575] | 1037 | |
---|
[1682] | 1038 | |
---|
[1575] | 1039 | USE indices, & |
---|
| 1040 | ONLY: nzb, nzt_mg |
---|
| 1041 | |
---|
| 1042 | IMPLICIT NONE |
---|
| 1043 | |
---|
[1898] | 1044 | INTEGER(iwp), INTENT(IN) :: glevel !< grid level |
---|
[1575] | 1045 | |
---|
[1898] | 1046 | REAL(wp), DIMENSION(nzb+1:nzt_mg(glevel)) :: f_mg !< 1D input array |
---|
| 1047 | REAL(wp), DIMENSION(nzb:nzt_mg(glevel)+1) :: f_mg_b !< 1D output array |
---|
[1575] | 1048 | |
---|
| 1049 | ! |
---|
| 1050 | !-- Local variables |
---|
[1898] | 1051 | INTEGER(iwp) :: ind !< index variable along z |
---|
| 1052 | INTEGER(iwp) :: k !< index variable along z |
---|
[1575] | 1053 | |
---|
| 1054 | |
---|
| 1055 | ind = nzb - 1 |
---|
| 1056 | ! |
---|
| 1057 | !-- Sort the data with even k index |
---|
| 1058 | DO k = nzb, nzt_mg(glevel), 2 |
---|
| 1059 | ind = ind + 1 |
---|
| 1060 | IF ( k >= nzb+1 .AND. k <= nzt_mg(glevel) ) THEN |
---|
| 1061 | f_mg_b(ind) = f_mg(k) |
---|
| 1062 | ENDIF |
---|
| 1063 | ENDDO |
---|
| 1064 | ! |
---|
| 1065 | !-- Sort the data with odd k index |
---|
| 1066 | DO k = nzb+1, nzt_mg(glevel)+1, 2 |
---|
| 1067 | ind = ind + 1 |
---|
| 1068 | IF( k >= nzb+1 .AND. k <= nzt_mg(glevel) ) THEN |
---|
| 1069 | f_mg_b(ind) = f_mg(k) |
---|
| 1070 | ENDIF |
---|
| 1071 | ENDDO |
---|
| 1072 | |
---|
| 1073 | END SUBROUTINE sort_k_to_even_odd_blocks_1d |
---|
| 1074 | |
---|
| 1075 | |
---|
| 1076 | !------------------------------------------------------------------------------! |
---|
| 1077 | ! Description: |
---|
| 1078 | ! ------------ |
---|
[1682] | 1079 | !> Sort k-Dimension from sequential into blocks of even and odd. |
---|
| 1080 | !> This is required to vectorize the red-black subroutine. |
---|
| 1081 | !> Version for 2D-INTEGER arrays |
---|
[1575] | 1082 | !------------------------------------------------------------------------------! |
---|
[3725] | 1083 | ! SUBROUTINE sort_k_to_even_odd_blocks_int( i_mg , glevel ) |
---|
[1575] | 1084 | ! |
---|
[3725] | 1085 | ! |
---|
| 1086 | ! USE indices, & |
---|
| 1087 | ! ONLY: nxl_mg, nxr_mg, nys_mg, nyn_mg, nzb, nzt_mg |
---|
| 1088 | ! |
---|
| 1089 | ! IMPLICIT NONE |
---|
| 1090 | ! |
---|
| 1091 | ! INTEGER(iwp), INTENT(IN) :: glevel !< grid level |
---|
| 1092 | ! |
---|
| 1093 | ! INTEGER(iwp), DIMENSION(nzb:nzt_mg(glevel)+1, & |
---|
| 1094 | ! nys_mg(glevel)-1:nyn_mg(glevel)+1, & |
---|
| 1095 | ! nxl_mg(glevel)-1:nxr_mg(glevel)+1) :: & |
---|
| 1096 | ! i_mg !< array to be sorted |
---|
| 1097 | ! |
---|
[1575] | 1098 | !-- Local variables |
---|
[3725] | 1099 | ! INTEGER(iwp) :: i !< index variabel along x |
---|
| 1100 | ! INTEGER(iwp) :: j !< index variable along y |
---|
| 1101 | ! INTEGER(iwp) :: k !< index variable along z |
---|
| 1102 | ! INTEGER(iwp) :: l !< grid level |
---|
| 1103 | ! INTEGER(iwp) :: ind !< index variable along z |
---|
| 1104 | ! INTEGER(iwp),DIMENSION(nzb:nzt_mg(glevel)+1) :: tmp !< temporary odd-even sorted array |
---|
[1575] | 1105 | ! |
---|
[3725] | 1106 | ! |
---|
| 1107 | ! CALL cpu_log( log_point_s(52), 'sort_k_to_even_odd', 'start' ) |
---|
| 1108 | ! |
---|
| 1109 | ! l = glevel |
---|
| 1110 | ! ind_even_odd = even_odd_level(l) |
---|
| 1111 | ! |
---|
| 1112 | ! DO i = nxl_mg(l)-1, nxr_mg(l)+1 |
---|
| 1113 | ! DO j = nys_mg(l)-1, nyn_mg(l)+1 |
---|
| 1114 | ! |
---|
| 1115 | ! |
---|
[1575] | 1116 | !-- Sort the data with even k index |
---|
[3725] | 1117 | ! ind = nzb-1 |
---|
| 1118 | ! DO k = nzb, nzt_mg(l), 2 |
---|
| 1119 | ! ind = ind + 1 |
---|
| 1120 | ! tmp(ind) = i_mg(k,j,i) |
---|
| 1121 | ! ENDDO |
---|
[1575] | 1122 | ! |
---|
| 1123 | !-- Sort the data with odd k index |
---|
[3725] | 1124 | ! DO k = nzb+1, nzt_mg(l)+1, 2 |
---|
| 1125 | ! ind = ind + 1 |
---|
| 1126 | ! tmp(ind) = i_mg(k,j,i) |
---|
| 1127 | ! ENDDO |
---|
| 1128 | ! |
---|
| 1129 | ! i_mg(:,j,i) = tmp |
---|
| 1130 | ! |
---|
| 1131 | ! ENDDO |
---|
| 1132 | ! ENDDO |
---|
| 1133 | ! |
---|
| 1134 | ! CALL cpu_log( log_point_s(52), 'sort_k_to_even_odd', 'stop' ) |
---|
| 1135 | ! |
---|
| 1136 | ! END SUBROUTINE sort_k_to_even_odd_blocks_int |
---|
[1575] | 1137 | |
---|
| 1138 | |
---|
| 1139 | !------------------------------------------------------------------------------! |
---|
| 1140 | ! Description: |
---|
| 1141 | ! ------------ |
---|
[1682] | 1142 | !> Sort k-dimension from blocks of even and odd into sequential |
---|
[1575] | 1143 | !------------------------------------------------------------------------------! |
---|
[1682] | 1144 | SUBROUTINE sort_k_to_sequential( p_mg ) |
---|
[1575] | 1145 | |
---|
[1682] | 1146 | |
---|
[1575] | 1147 | USE control_parameters, & |
---|
| 1148 | ONLY: grid_level |
---|
| 1149 | |
---|
| 1150 | USE indices, & |
---|
| 1151 | ONLY: nxl_mg, nxr_mg, nys_mg, nyn_mg, nzb, nzt_mg |
---|
| 1152 | |
---|
| 1153 | IMPLICIT NONE |
---|
| 1154 | |
---|
| 1155 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
| 1156 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
[1898] | 1157 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: & |
---|
| 1158 | p_mg !< array to be sorted |
---|
[1575] | 1159 | ! |
---|
| 1160 | !-- Local variables |
---|
[1898] | 1161 | INTEGER(iwp) :: i !< index variable along x |
---|
| 1162 | INTEGER(iwp) :: j !< index variable along y |
---|
| 1163 | INTEGER(iwp) :: k !< index variable along z |
---|
| 1164 | INTEGER(iwp) :: l !< grid level |
---|
| 1165 | INTEGER(iwp) :: ind !< index variable along z |
---|
[1575] | 1166 | |
---|
| 1167 | REAL(wp),DIMENSION(nzb:nzt_mg(grid_level)+1) :: tmp |
---|
| 1168 | |
---|
| 1169 | |
---|
| 1170 | l = grid_level |
---|
| 1171 | |
---|
| 1172 | !$OMP PARALLEL PRIVATE (i,j,k,ind,tmp) |
---|
| 1173 | !$OMP DO |
---|
| 1174 | DO i = nxl_mg(l)-1, nxr_mg(l)+1 |
---|
| 1175 | DO j = nys_mg(l)-1, nyn_mg(l)+1 |
---|
| 1176 | |
---|
| 1177 | ind = nzb - 1 |
---|
| 1178 | tmp = p_mg(:,j,i) |
---|
| 1179 | DO k = nzb, nzt_mg(l), 2 |
---|
| 1180 | ind = ind + 1 |
---|
| 1181 | p_mg(k,j,i) = tmp(ind) |
---|
| 1182 | ENDDO |
---|
| 1183 | |
---|
| 1184 | DO k = nzb+1, nzt_mg(l)+1, 2 |
---|
| 1185 | ind = ind + 1 |
---|
| 1186 | p_mg(k,j,i) = tmp(ind) |
---|
| 1187 | ENDDO |
---|
| 1188 | ENDDO |
---|
| 1189 | ENDDO |
---|
| 1190 | !$OMP END PARALLEL |
---|
| 1191 | |
---|
| 1192 | END SUBROUTINE sort_k_to_sequential |
---|
| 1193 | |
---|
| 1194 | |
---|
[1682] | 1195 | !------------------------------------------------------------------------------! |
---|
| 1196 | ! Description: |
---|
| 1197 | ! ------------ |
---|
| 1198 | !> Gather subdomain data from all PEs. |
---|
| 1199 | !------------------------------------------------------------------------------! |
---|
[1931] | 1200 | SUBROUTINE mg_gather( f2, f2_sub ) |
---|
[1575] | 1201 | |
---|
| 1202 | USE control_parameters, & |
---|
| 1203 | ONLY: grid_level |
---|
| 1204 | |
---|
| 1205 | USE cpulog, & |
---|
| 1206 | ONLY: cpu_log, log_point_s |
---|
| 1207 | |
---|
| 1208 | USE indices, & |
---|
| 1209 | ONLY: mg_loc_ind, nxl_mg, nxr_mg, nys_mg, nyn_mg, nzb, nzt_mg |
---|
| 1210 | |
---|
| 1211 | IMPLICIT NONE |
---|
| 1212 | |
---|
[1682] | 1213 | INTEGER(iwp) :: i !< |
---|
| 1214 | INTEGER(iwp) :: il !< |
---|
| 1215 | INTEGER(iwp) :: ir !< |
---|
| 1216 | INTEGER(iwp) :: j !< |
---|
| 1217 | INTEGER(iwp) :: jn !< |
---|
| 1218 | INTEGER(iwp) :: js !< |
---|
| 1219 | INTEGER(iwp) :: k !< |
---|
| 1220 | INTEGER(iwp) :: nwords !< |
---|
[1575] | 1221 | |
---|
| 1222 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
| 1223 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
[1682] | 1224 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: f2 !< |
---|
[1575] | 1225 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
| 1226 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
[1682] | 1227 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: f2_l !< |
---|
[1575] | 1228 | |
---|
| 1229 | REAL(wp), DIMENSION(nzb:mg_loc_ind(5,myid)+1, & |
---|
| 1230 | mg_loc_ind(3,myid)-1:mg_loc_ind(4,myid)+1, & |
---|
[1682] | 1231 | mg_loc_ind(1,myid)-1:mg_loc_ind(2,myid)+1) :: f2_sub !< |
---|
[1575] | 1232 | |
---|
| 1233 | |
---|
| 1234 | #if defined( __parallel ) |
---|
| 1235 | CALL cpu_log( log_point_s(34), 'mg_gather', 'start' ) |
---|
| 1236 | |
---|
| 1237 | f2_l = 0.0_wp |
---|
| 1238 | |
---|
| 1239 | ! |
---|
| 1240 | !-- Store the local subdomain array on the total array |
---|
| 1241 | js = mg_loc_ind(3,myid) |
---|
| 1242 | IF ( south_border_pe ) js = js - 1 |
---|
| 1243 | jn = mg_loc_ind(4,myid) |
---|
| 1244 | IF ( north_border_pe ) jn = jn + 1 |
---|
| 1245 | il = mg_loc_ind(1,myid) |
---|
| 1246 | IF ( left_border_pe ) il = il - 1 |
---|
| 1247 | ir = mg_loc_ind(2,myid) |
---|
| 1248 | IF ( right_border_pe ) ir = ir + 1 |
---|
| 1249 | DO i = il, ir |
---|
| 1250 | DO j = js, jn |
---|
| 1251 | DO k = nzb, nzt_mg(grid_level)+1 |
---|
| 1252 | f2_l(k,j,i) = f2_sub(k,j,i) |
---|
| 1253 | ENDDO |
---|
| 1254 | ENDDO |
---|
| 1255 | ENDDO |
---|
| 1256 | |
---|
| 1257 | ! |
---|
| 1258 | !-- Find out the number of array elements of the total array |
---|
| 1259 | nwords = SIZE( f2 ) |
---|
| 1260 | |
---|
| 1261 | ! |
---|
| 1262 | !-- Gather subdomain data from all PEs |
---|
| 1263 | IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr ) |
---|
| 1264 | CALL MPI_ALLREDUCE( f2_l(nzb,nys_mg(grid_level)-1,nxl_mg(grid_level)-1), & |
---|
| 1265 | f2(nzb,nys_mg(grid_level)-1,nxl_mg(grid_level)-1), & |
---|
| 1266 | nwords, MPI_REAL, MPI_SUM, comm2d, ierr ) |
---|
| 1267 | |
---|
| 1268 | CALL cpu_log( log_point_s(34), 'mg_gather', 'stop' ) |
---|
| 1269 | #endif |
---|
| 1270 | |
---|
[1931] | 1271 | END SUBROUTINE mg_gather |
---|
[1575] | 1272 | |
---|
| 1273 | |
---|
| 1274 | |
---|
[1682] | 1275 | !------------------------------------------------------------------------------! |
---|
| 1276 | ! Description: |
---|
| 1277 | ! ------------ |
---|
| 1278 | !> @todo It might be possible to improve the speed of this routine by using |
---|
| 1279 | !> non-blocking communication |
---|
| 1280 | !------------------------------------------------------------------------------! |
---|
[1931] | 1281 | SUBROUTINE mg_scatter( p2, p2_sub ) |
---|
[1575] | 1282 | |
---|
| 1283 | USE control_parameters, & |
---|
| 1284 | ONLY: grid_level |
---|
| 1285 | |
---|
| 1286 | USE cpulog, & |
---|
| 1287 | ONLY: cpu_log, log_point_s |
---|
| 1288 | |
---|
| 1289 | USE indices, & |
---|
| 1290 | ONLY: mg_loc_ind, nxl_mg, nxr_mg, nys_mg, nyn_mg, nzb, nzt_mg |
---|
| 1291 | |
---|
| 1292 | IMPLICIT NONE |
---|
| 1293 | |
---|
[1682] | 1294 | INTEGER(iwp) :: nwords !< |
---|
[1575] | 1295 | |
---|
| 1296 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level-1)+1, & |
---|
| 1297 | nys_mg(grid_level-1)-1:nyn_mg(grid_level-1)+1, & |
---|
[1682] | 1298 | nxl_mg(grid_level-1)-1:nxr_mg(grid_level-1)+1) :: p2 !< |
---|
[1575] | 1299 | |
---|
| 1300 | REAL(wp), DIMENSION(nzb:mg_loc_ind(5,myid)+1, & |
---|
| 1301 | mg_loc_ind(3,myid)-1:mg_loc_ind(4,myid)+1, & |
---|
[1682] | 1302 | mg_loc_ind(1,myid)-1:mg_loc_ind(2,myid)+1) :: p2_sub !< |
---|
[1575] | 1303 | |
---|
| 1304 | ! |
---|
| 1305 | !-- Find out the number of array elements of the subdomain array |
---|
| 1306 | nwords = SIZE( p2_sub ) |
---|
| 1307 | |
---|
| 1308 | #if defined( __parallel ) |
---|
| 1309 | CALL cpu_log( log_point_s(35), 'mg_scatter', 'start' ) |
---|
| 1310 | |
---|
| 1311 | p2_sub = p2(:,mg_loc_ind(3,myid)-1:mg_loc_ind(4,myid)+1, & |
---|
| 1312 | mg_loc_ind(1,myid)-1:mg_loc_ind(2,myid)+1) |
---|
| 1313 | |
---|
| 1314 | CALL cpu_log( log_point_s(35), 'mg_scatter', 'stop' ) |
---|
| 1315 | #endif |
---|
| 1316 | |
---|
[1931] | 1317 | END SUBROUTINE mg_scatter |
---|
[1575] | 1318 | |
---|
| 1319 | |
---|
| 1320 | !------------------------------------------------------------------------------! |
---|
| 1321 | ! Description: |
---|
| 1322 | ! ------------ |
---|
[1682] | 1323 | !> This is where the multigrid technique takes place. V- and W- Cycle are |
---|
| 1324 | !> implemented and steered by the parameter "gamma". Parameter "nue" determines |
---|
| 1325 | !> the convergence of the multigrid iterative solution. There are nue times |
---|
| 1326 | !> RB-GS iterations. It should be set to "1" or "2", considering the time effort |
---|
| 1327 | !> one would like to invest. Last choice shows a very good converging factor, |
---|
| 1328 | !> but leads to an increase in computing time. |
---|
[1575] | 1329 | !------------------------------------------------------------------------------! |
---|
[1931] | 1330 | RECURSIVE SUBROUTINE next_mg_level( f_mg, p_mg, p3, r ) |
---|
[1575] | 1331 | |
---|
| 1332 | USE control_parameters, & |
---|
| 1333 | ONLY: bc_lr_dirrad, bc_lr_raddir, bc_ns_dirrad, bc_ns_raddir, & |
---|
[3241] | 1334 | child_domain, gamma_mg, grid_level_count, maximum_grid_level,& |
---|
| 1335 | mg_switch_to_pe0_level, mg_switch_to_pe0, ngsrb |
---|
[1575] | 1336 | |
---|
| 1337 | USE indices, & |
---|
| 1338 | ONLY: mg_loc_ind, nxl, nxl_mg, nxr, nxr_mg, nys, nys_mg, nyn, & |
---|
| 1339 | nyn_mg, nzb, nzt, nzt_mg |
---|
| 1340 | |
---|
| 1341 | IMPLICIT NONE |
---|
| 1342 | |
---|
[1898] | 1343 | INTEGER(iwp) :: i !< index variable along x |
---|
| 1344 | INTEGER(iwp) :: j !< index variable along y |
---|
| 1345 | INTEGER(iwp) :: k !< index variable along z |
---|
[1682] | 1346 | INTEGER(iwp) :: nxl_mg_save !< |
---|
| 1347 | INTEGER(iwp) :: nxr_mg_save !< |
---|
| 1348 | INTEGER(iwp) :: nyn_mg_save !< |
---|
| 1349 | INTEGER(iwp) :: nys_mg_save !< |
---|
| 1350 | INTEGER(iwp) :: nzt_mg_save !< |
---|
[1575] | 1351 | |
---|
| 1352 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
| 1353 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
[1682] | 1354 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: f_mg !< |
---|
[1575] | 1355 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
| 1356 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
[1682] | 1357 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: p_mg !< |
---|
[1575] | 1358 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
| 1359 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
[1682] | 1360 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: p3 !< |
---|
[1575] | 1361 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
| 1362 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
[1682] | 1363 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: r !< |
---|
[1575] | 1364 | |
---|
| 1365 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level-1)+1, & |
---|
| 1366 | nys_mg(grid_level-1)-1:nyn_mg(grid_level-1)+1, & |
---|
[1682] | 1367 | nxl_mg(grid_level-1)-1:nxr_mg(grid_level-1)+1) :: f2 !< |
---|
[1575] | 1368 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level-1)+1, & |
---|
| 1369 | nys_mg(grid_level-1)-1:nyn_mg(grid_level-1)+1, & |
---|
[1682] | 1370 | nxl_mg(grid_level-1)-1:nxr_mg(grid_level-1)+1) :: p2 !< |
---|
[1575] | 1371 | |
---|
[1682] | 1372 | REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: f2_sub !< |
---|
| 1373 | REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: p2_sub !< |
---|
[1575] | 1374 | |
---|
| 1375 | ! |
---|
| 1376 | !-- Restriction to the coarsest grid |
---|
| 1377 | 10 IF ( grid_level == 1 ) THEN |
---|
| 1378 | |
---|
| 1379 | ! |
---|
| 1380 | !-- Solution on the coarsest grid. Double the number of Gauss-Seidel |
---|
| 1381 | !-- iterations in order to get a more accurate solution. |
---|
| 1382 | ngsrb = 2 * ngsrb |
---|
| 1383 | |
---|
| 1384 | ind_even_odd = even_odd_level(grid_level) |
---|
| 1385 | |
---|
[1931] | 1386 | CALL redblack( f_mg, p_mg ) |
---|
[1575] | 1387 | |
---|
| 1388 | ngsrb = ngsrb / 2 |
---|
| 1389 | |
---|
| 1390 | |
---|
| 1391 | ELSEIF ( grid_level /= 1 ) THEN |
---|
| 1392 | |
---|
| 1393 | grid_level_count(grid_level) = grid_level_count(grid_level) + 1 |
---|
| 1394 | |
---|
| 1395 | ! |
---|
| 1396 | !-- Solution on the actual grid level |
---|
| 1397 | ind_even_odd = even_odd_level(grid_level) |
---|
| 1398 | |
---|
[1931] | 1399 | CALL redblack( f_mg, p_mg ) |
---|
[1575] | 1400 | |
---|
| 1401 | ! |
---|
| 1402 | !-- Determination of the actual residual |
---|
[1931] | 1403 | CALL resid( f_mg, p_mg, r ) |
---|
[1575] | 1404 | |
---|
| 1405 | !-- Restriction of the residual (finer grid values!) to the next coarser |
---|
| 1406 | !-- grid. Therefore, the grid level has to be decremented now. nxl..nzt have |
---|
| 1407 | !-- to be set to the coarse grid values, because these variables are needed |
---|
| 1408 | !-- for the exchange of ghost points in routine exchange_horiz |
---|
| 1409 | grid_level = grid_level - 1 |
---|
| 1410 | |
---|
| 1411 | nxl = nxl_mg(grid_level) |
---|
| 1412 | nys = nys_mg(grid_level) |
---|
| 1413 | nxr = nxr_mg(grid_level) |
---|
| 1414 | nyn = nyn_mg(grid_level) |
---|
| 1415 | nzt = nzt_mg(grid_level) |
---|
| 1416 | |
---|
| 1417 | IF ( grid_level == mg_switch_to_pe0_level ) THEN |
---|
| 1418 | |
---|
| 1419 | ! |
---|
| 1420 | !-- From this level on, calculations are done on PE0 only. |
---|
| 1421 | !-- First, carry out restriction on the subdomain. |
---|
| 1422 | !-- Therefore, indices of the level have to be changed to subdomain |
---|
| 1423 | !-- values in between (otherwise, the restrict routine would expect |
---|
| 1424 | !-- the gathered array) |
---|
| 1425 | |
---|
| 1426 | nxl_mg_save = nxl_mg(grid_level) |
---|
| 1427 | nxr_mg_save = nxr_mg(grid_level) |
---|
| 1428 | nys_mg_save = nys_mg(grid_level) |
---|
| 1429 | nyn_mg_save = nyn_mg(grid_level) |
---|
| 1430 | nzt_mg_save = nzt_mg(grid_level) |
---|
| 1431 | nxl_mg(grid_level) = mg_loc_ind(1,myid) |
---|
| 1432 | nxr_mg(grid_level) = mg_loc_ind(2,myid) |
---|
| 1433 | nys_mg(grid_level) = mg_loc_ind(3,myid) |
---|
| 1434 | nyn_mg(grid_level) = mg_loc_ind(4,myid) |
---|
| 1435 | nzt_mg(grid_level) = mg_loc_ind(5,myid) |
---|
| 1436 | nxl = mg_loc_ind(1,myid) |
---|
| 1437 | nxr = mg_loc_ind(2,myid) |
---|
| 1438 | nys = mg_loc_ind(3,myid) |
---|
| 1439 | nyn = mg_loc_ind(4,myid) |
---|
| 1440 | nzt = mg_loc_ind(5,myid) |
---|
| 1441 | |
---|
| 1442 | ALLOCATE( f2_sub(nzb:nzt_mg(grid_level)+1, & |
---|
| 1443 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
| 1444 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) ) |
---|
| 1445 | |
---|
[1931] | 1446 | CALL restrict( f2_sub, r ) |
---|
[1575] | 1447 | |
---|
| 1448 | ! |
---|
| 1449 | !-- Restore the correct indices of this level |
---|
| 1450 | nxl_mg(grid_level) = nxl_mg_save |
---|
| 1451 | nxr_mg(grid_level) = nxr_mg_save |
---|
| 1452 | nys_mg(grid_level) = nys_mg_save |
---|
| 1453 | nyn_mg(grid_level) = nyn_mg_save |
---|
| 1454 | nzt_mg(grid_level) = nzt_mg_save |
---|
| 1455 | nxl = nxl_mg(grid_level) |
---|
| 1456 | nxr = nxr_mg(grid_level) |
---|
| 1457 | nys = nys_mg(grid_level) |
---|
| 1458 | nyn = nyn_mg(grid_level) |
---|
| 1459 | nzt = nzt_mg(grid_level) |
---|
| 1460 | ! |
---|
| 1461 | !-- Gather all arrays from the subdomains on PE0 |
---|
[1931] | 1462 | CALL mg_gather( f2, f2_sub ) |
---|
[1575] | 1463 | |
---|
| 1464 | ! |
---|
| 1465 | !-- Set switch for routine exchange_horiz, that no ghostpoint exchange |
---|
| 1466 | !-- has to be carried out from now on |
---|
| 1467 | mg_switch_to_pe0 = .TRUE. |
---|
| 1468 | |
---|
| 1469 | ! |
---|
| 1470 | !-- In case of non-cyclic lateral boundary conditions, both in- and |
---|
| 1471 | !-- outflow conditions have to be used on all PEs after the switch, |
---|
| 1472 | !-- because then they have the total domain. |
---|
| 1473 | IF ( bc_lr_dirrad ) THEN |
---|
[3182] | 1474 | bc_dirichlet_l = .TRUE. |
---|
| 1475 | bc_dirichlet_r = .FALSE. |
---|
| 1476 | bc_radiation_l = .FALSE. |
---|
| 1477 | bc_radiation_r = .TRUE. |
---|
[1575] | 1478 | ELSEIF ( bc_lr_raddir ) THEN |
---|
[3182] | 1479 | bc_dirichlet_l = .FALSE. |
---|
| 1480 | bc_dirichlet_r = .TRUE. |
---|
| 1481 | bc_radiation_l = .TRUE. |
---|
| 1482 | bc_radiation_r = .FALSE. |
---|
| 1483 | ELSEIF ( child_domain .OR. nesting_offline ) THEN |
---|
| 1484 | bc_dirichlet_l = .TRUE. |
---|
| 1485 | bc_dirichlet_r = .TRUE. |
---|
[1575] | 1486 | ENDIF |
---|
| 1487 | |
---|
| 1488 | IF ( bc_ns_dirrad ) THEN |
---|
[3182] | 1489 | bc_dirichlet_n = .TRUE. |
---|
| 1490 | bc_dirichlet_s = .FALSE. |
---|
| 1491 | bc_radiation_n = .FALSE. |
---|
| 1492 | bc_radiation_s = .TRUE. |
---|
[1575] | 1493 | ELSEIF ( bc_ns_raddir ) THEN |
---|
[3182] | 1494 | bc_dirichlet_n = .FALSE. |
---|
| 1495 | bc_dirichlet_s = .TRUE. |
---|
| 1496 | bc_radiation_n = .TRUE. |
---|
| 1497 | bc_radiation_s = .FALSE. |
---|
| 1498 | ELSEIF ( child_domain .OR. nesting_offline) THEN |
---|
| 1499 | bc_dirichlet_s = .TRUE. |
---|
| 1500 | bc_dirichlet_n = .TRUE. |
---|
[1575] | 1501 | ENDIF |
---|
| 1502 | |
---|
| 1503 | DEALLOCATE( f2_sub ) |
---|
| 1504 | |
---|
| 1505 | ELSE |
---|
| 1506 | |
---|
[1931] | 1507 | CALL restrict( f2, r ) |
---|
[1575] | 1508 | |
---|
| 1509 | ind_even_odd = even_odd_level(grid_level) ! must be after restrict |
---|
| 1510 | |
---|
| 1511 | ENDIF |
---|
| 1512 | |
---|
| 1513 | p2 = 0.0_wp |
---|
| 1514 | |
---|
| 1515 | ! |
---|
| 1516 | !-- Repeat the same procedure till the coarsest grid is reached |
---|
[1931] | 1517 | CALL next_mg_level( f2, p2, p3, r ) |
---|
[1575] | 1518 | |
---|
| 1519 | ENDIF |
---|
| 1520 | |
---|
| 1521 | ! |
---|
| 1522 | !-- Now follows the prolongation |
---|
| 1523 | IF ( grid_level >= 2 ) THEN |
---|
| 1524 | |
---|
| 1525 | ! |
---|
| 1526 | !-- Prolongation of the new residual. The values are transferred |
---|
| 1527 | !-- from the coarse to the next finer grid. |
---|
| 1528 | IF ( grid_level == mg_switch_to_pe0_level+1 ) THEN |
---|
| 1529 | |
---|
| 1530 | #if defined( __parallel ) |
---|
| 1531 | ! |
---|
| 1532 | !-- At this level, the new residual first has to be scattered from |
---|
| 1533 | !-- PE0 to the other PEs |
---|
| 1534 | ALLOCATE( p2_sub(nzb:mg_loc_ind(5,myid)+1, & |
---|
| 1535 | mg_loc_ind(3,myid)-1:mg_loc_ind(4,myid)+1, & |
---|
| 1536 | mg_loc_ind(1,myid)-1:mg_loc_ind(2,myid)+1) ) |
---|
| 1537 | |
---|
[1931] | 1538 | CALL mg_scatter( p2, p2_sub ) |
---|
[1575] | 1539 | |
---|
| 1540 | ! |
---|
| 1541 | !-- Therefore, indices of the previous level have to be changed to |
---|
| 1542 | !-- subdomain values in between (otherwise, the prolong routine would |
---|
| 1543 | !-- expect the gathered array) |
---|
| 1544 | nxl_mg_save = nxl_mg(grid_level-1) |
---|
| 1545 | nxr_mg_save = nxr_mg(grid_level-1) |
---|
| 1546 | nys_mg_save = nys_mg(grid_level-1) |
---|
| 1547 | nyn_mg_save = nyn_mg(grid_level-1) |
---|
| 1548 | nzt_mg_save = nzt_mg(grid_level-1) |
---|
| 1549 | nxl_mg(grid_level-1) = mg_loc_ind(1,myid) |
---|
| 1550 | nxr_mg(grid_level-1) = mg_loc_ind(2,myid) |
---|
| 1551 | nys_mg(grid_level-1) = mg_loc_ind(3,myid) |
---|
| 1552 | nyn_mg(grid_level-1) = mg_loc_ind(4,myid) |
---|
| 1553 | nzt_mg(grid_level-1) = mg_loc_ind(5,myid) |
---|
| 1554 | |
---|
| 1555 | ! |
---|
| 1556 | !-- Set switch for routine exchange_horiz, that ghostpoint exchange |
---|
| 1557 | !-- has to be carried again out from now on |
---|
| 1558 | mg_switch_to_pe0 = .FALSE. |
---|
| 1559 | |
---|
| 1560 | ! |
---|
[2021] | 1561 | !-- For non-cyclic lateral boundary conditions and in case of nesting, |
---|
| 1562 | !-- restore the in-/outflow conditions. |
---|
[3182] | 1563 | bc_dirichlet_l = .FALSE.; bc_dirichlet_r = .FALSE. |
---|
| 1564 | bc_dirichlet_n = .FALSE.; bc_dirichlet_s = .FALSE. |
---|
| 1565 | bc_radiation_l = .FALSE.; bc_radiation_r = .FALSE. |
---|
| 1566 | bc_radiation_n = .FALSE.; bc_radiation_s = .FALSE. |
---|
[1575] | 1567 | |
---|
| 1568 | IF ( pleft == MPI_PROC_NULL ) THEN |
---|
[3182] | 1569 | IF ( bc_lr_dirrad .OR. child_domain .OR. nesting_offline ) & |
---|
| 1570 | THEN |
---|
| 1571 | bc_dirichlet_l = .TRUE. |
---|
[1575] | 1572 | ELSEIF ( bc_lr_raddir ) THEN |
---|
[3182] | 1573 | bc_radiation_l = .TRUE. |
---|
[1575] | 1574 | ENDIF |
---|
| 1575 | ENDIF |
---|
| 1576 | |
---|
| 1577 | IF ( pright == MPI_PROC_NULL ) THEN |
---|
| 1578 | IF ( bc_lr_dirrad ) THEN |
---|
[3182] | 1579 | bc_radiation_r = .TRUE. |
---|
| 1580 | ELSEIF ( bc_lr_raddir .OR. child_domain .OR. & |
---|
| 1581 | nesting_offline ) THEN |
---|
| 1582 | bc_dirichlet_r = .TRUE. |
---|
[1575] | 1583 | ENDIF |
---|
| 1584 | ENDIF |
---|
| 1585 | |
---|
| 1586 | IF ( psouth == MPI_PROC_NULL ) THEN |
---|
| 1587 | IF ( bc_ns_dirrad ) THEN |
---|
[3182] | 1588 | bc_radiation_s = .TRUE. |
---|
| 1589 | ELSEIF ( bc_ns_raddir .OR. child_domain .OR. & |
---|
| 1590 | nesting_offline ) THEN |
---|
| 1591 | bc_dirichlet_s = .TRUE. |
---|
[1575] | 1592 | ENDIF |
---|
| 1593 | ENDIF |
---|
| 1594 | |
---|
| 1595 | IF ( pnorth == MPI_PROC_NULL ) THEN |
---|
[3182] | 1596 | IF ( bc_ns_dirrad .OR. child_domain .OR. nesting_offline ) & |
---|
| 1597 | THEN |
---|
| 1598 | bc_dirichlet_n = .TRUE. |
---|
[1575] | 1599 | ELSEIF ( bc_ns_raddir ) THEN |
---|
[3182] | 1600 | bc_radiation_n = .TRUE. |
---|
[1575] | 1601 | ENDIF |
---|
| 1602 | ENDIF |
---|
| 1603 | |
---|
[1931] | 1604 | CALL prolong( p2_sub, p3 ) |
---|
[1575] | 1605 | |
---|
| 1606 | ! |
---|
| 1607 | !-- Restore the correct indices of the previous level |
---|
| 1608 | nxl_mg(grid_level-1) = nxl_mg_save |
---|
| 1609 | nxr_mg(grid_level-1) = nxr_mg_save |
---|
| 1610 | nys_mg(grid_level-1) = nys_mg_save |
---|
| 1611 | nyn_mg(grid_level-1) = nyn_mg_save |
---|
| 1612 | nzt_mg(grid_level-1) = nzt_mg_save |
---|
| 1613 | |
---|
| 1614 | DEALLOCATE( p2_sub ) |
---|
| 1615 | #endif |
---|
| 1616 | |
---|
| 1617 | ELSE |
---|
| 1618 | |
---|
[1931] | 1619 | CALL prolong( p2, p3 ) |
---|
[1575] | 1620 | |
---|
| 1621 | ENDIF |
---|
| 1622 | |
---|
| 1623 | ! |
---|
| 1624 | !-- Computation of the new pressure correction. Therefore, |
---|
| 1625 | !-- values from prior grids are added up automatically stage by stage. |
---|
| 1626 | DO i = nxl_mg(grid_level)-1, nxr_mg(grid_level)+1 |
---|
| 1627 | DO j = nys_mg(grid_level)-1, nyn_mg(grid_level)+1 |
---|
| 1628 | DO k = nzb, nzt_mg(grid_level)+1 |
---|
| 1629 | p_mg(k,j,i) = p_mg(k,j,i) + p3(k,j,i) |
---|
| 1630 | ENDDO |
---|
| 1631 | ENDDO |
---|
| 1632 | ENDDO |
---|
| 1633 | |
---|
| 1634 | ! |
---|
| 1635 | !-- Relaxation of the new solution |
---|
[1931] | 1636 | CALL redblack( f_mg, p_mg ) |
---|
[1575] | 1637 | |
---|
| 1638 | ENDIF |
---|
| 1639 | |
---|
| 1640 | |
---|
| 1641 | ! |
---|
| 1642 | !-- The following few lines serve the steering of the multigrid scheme |
---|
| 1643 | IF ( grid_level == maximum_grid_level ) THEN |
---|
| 1644 | |
---|
| 1645 | GOTO 20 |
---|
| 1646 | |
---|
| 1647 | ELSEIF ( grid_level /= maximum_grid_level .AND. grid_level /= 1 .AND. & |
---|
| 1648 | grid_level_count(grid_level) /= gamma_mg ) THEN |
---|
| 1649 | |
---|
| 1650 | GOTO 10 |
---|
| 1651 | |
---|
| 1652 | ENDIF |
---|
| 1653 | |
---|
| 1654 | ! |
---|
[1931] | 1655 | !-- Reset counter for the next call of poismg |
---|
[1575] | 1656 | grid_level_count(grid_level) = 0 |
---|
| 1657 | |
---|
| 1658 | ! |
---|
| 1659 | !-- Continue with the next finer level. nxl..nzt have to be |
---|
| 1660 | !-- set to the finer grid values, because these variables are needed for the |
---|
| 1661 | !-- exchange of ghost points in routine exchange_horiz |
---|
| 1662 | grid_level = grid_level + 1 |
---|
| 1663 | ind_even_odd = even_odd_level(grid_level) |
---|
| 1664 | |
---|
| 1665 | nxl = nxl_mg(grid_level) |
---|
| 1666 | nxr = nxr_mg(grid_level) |
---|
| 1667 | nys = nys_mg(grid_level) |
---|
| 1668 | nyn = nyn_mg(grid_level) |
---|
| 1669 | nzt = nzt_mg(grid_level) |
---|
| 1670 | |
---|
| 1671 | 20 CONTINUE |
---|
| 1672 | |
---|
[1931] | 1673 | END SUBROUTINE next_mg_level |
---|
[1575] | 1674 | |
---|
| 1675 | |
---|
| 1676 | !------------------------------------------------------------------------------! |
---|
| 1677 | ! Description: |
---|
| 1678 | ! ------------ |
---|
[1682] | 1679 | !> Initial settings for sorting k-dimension from sequential order (alternate |
---|
| 1680 | !> even/odd) into blocks of even and odd or vice versa |
---|
[1575] | 1681 | !------------------------------------------------------------------------------! |
---|
[1682] | 1682 | SUBROUTINE init_even_odd_blocks |
---|
[1575] | 1683 | |
---|
[1682] | 1684 | |
---|
[1575] | 1685 | USE arrays_3d, & |
---|
[2232] | 1686 | ONLY: f1_mg, f2_mg, f3_mg |
---|
[1575] | 1687 | |
---|
| 1688 | USE control_parameters, & |
---|
[1898] | 1689 | ONLY: grid_level, maximum_grid_level |
---|
[1575] | 1690 | |
---|
| 1691 | USE indices, & |
---|
| 1692 | ONLY: nzb, nzt, nzt_mg |
---|
| 1693 | |
---|
| 1694 | USE indices, & |
---|
[3241] | 1695 | ONLY: nzb, nzt_mg |
---|
[1575] | 1696 | |
---|
| 1697 | IMPLICIT NONE |
---|
| 1698 | ! |
---|
| 1699 | !-- Local variables |
---|
[1898] | 1700 | INTEGER(iwp) :: i !< |
---|
[1682] | 1701 | INTEGER(iwp) :: l !< |
---|
[1575] | 1702 | |
---|
| 1703 | LOGICAL, SAVE :: lfirst = .TRUE. |
---|
| 1704 | |
---|
| 1705 | |
---|
| 1706 | IF ( .NOT. lfirst ) RETURN |
---|
| 1707 | |
---|
| 1708 | ALLOCATE( even_odd_level(maximum_grid_level) ) |
---|
| 1709 | |
---|
| 1710 | ALLOCATE( f1_mg_b(nzb:nzt+1,maximum_grid_level), & |
---|
| 1711 | f2_mg_b(nzb:nzt+1,maximum_grid_level), & |
---|
[2232] | 1712 | f3_mg_b(nzb:nzt+1,maximum_grid_level) ) |
---|
[1575] | 1713 | |
---|
| 1714 | ! |
---|
| 1715 | !-- Set border index between the even and odd block |
---|
| 1716 | DO i = maximum_grid_level, 1, -1 |
---|
| 1717 | even_odd_level(i) = nzt_mg(i) / 2 |
---|
| 1718 | ENDDO |
---|
| 1719 | |
---|
| 1720 | ! |
---|
| 1721 | !-- Sort grid coefficients used in red/black scheme and for calculating the |
---|
| 1722 | !-- residual to block (even/odd) structure |
---|
| 1723 | DO l = maximum_grid_level, 1 , -1 |
---|
| 1724 | CALL sort_k_to_even_odd_blocks( f1_mg(nzb+1:nzt_mg(grid_level),l), & |
---|
| 1725 | f1_mg_b(nzb:nzt_mg(grid_level)+1,l), & |
---|
| 1726 | l ) |
---|
| 1727 | CALL sort_k_to_even_odd_blocks( f2_mg(nzb+1:nzt_mg(grid_level),l), & |
---|
| 1728 | f2_mg_b(nzb:nzt_mg(grid_level)+1,l), & |
---|
| 1729 | l ) |
---|
| 1730 | CALL sort_k_to_even_odd_blocks( f3_mg(nzb+1:nzt_mg(grid_level),l), & |
---|
| 1731 | f3_mg_b(nzb:nzt_mg(grid_level)+1,l), & |
---|
| 1732 | l ) |
---|
| 1733 | ENDDO |
---|
| 1734 | |
---|
| 1735 | lfirst = .FALSE. |
---|
| 1736 | |
---|
| 1737 | END SUBROUTINE init_even_odd_blocks |
---|
| 1738 | |
---|
| 1739 | |
---|
| 1740 | !------------------------------------------------------------------------------! |
---|
| 1741 | ! Description: |
---|
| 1742 | ! ------------ |
---|
[1682] | 1743 | !> Special exchange_horiz subroutine for use in redblack. Transfers only |
---|
| 1744 | !> "red" or "black" data points. |
---|
[1575] | 1745 | !------------------------------------------------------------------------------! |
---|
[3241] | 1746 | SUBROUTINE special_exchange_horiz( p_mg, color ) |
---|
[1575] | 1747 | |
---|
[1682] | 1748 | |
---|
[1575] | 1749 | USE control_parameters, & |
---|
[3241] | 1750 | ONLY: grid_level, mg_switch_to_pe0_level, synchronous_exchange |
---|
[1575] | 1751 | |
---|
| 1752 | USE indices, & |
---|
[3241] | 1753 | ONLY: nxl, nxl_mg, nxr, nxr_mg, nys, nys_mg, nyn, & |
---|
[1575] | 1754 | nyn_mg, nzb, nzt, nzt_mg |
---|
| 1755 | |
---|
| 1756 | IMPLICIT NONE |
---|
| 1757 | |
---|
| 1758 | REAL(wp), DIMENSION(nzb:nzt_mg(grid_level)+1, & |
---|
| 1759 | nys_mg(grid_level)-1:nyn_mg(grid_level)+1, & |
---|
[1904] | 1760 | nxl_mg(grid_level)-1:nxr_mg(grid_level)+1) :: & |
---|
| 1761 | p_mg !< treated array |
---|
[1575] | 1762 | |
---|
[1904] | 1763 | INTEGER(iwp), intent(IN) :: color !< flag for grid point type (red or black) |
---|
[1575] | 1764 | ! |
---|
| 1765 | !-- Local variables |
---|
[1904] | 1766 | INTEGER(iwp) :: i !< index variable along x |
---|
| 1767 | INTEGER(iwp) :: i1 !< index variable along x on coarse level |
---|
| 1768 | INTEGER(iwp) :: i2 !< index variable along x on coarse level |
---|
[1575] | 1769 | |
---|
[1904] | 1770 | INTEGER(iwp) :: j !< index variable along y |
---|
| 1771 | INTEGER(iwp) :: j1 !< index variable along y on coarse level |
---|
| 1772 | INTEGER(iwp) :: j2 !< index variable along y on coarse level |
---|
| 1773 | INTEGER(iwp) :: k !< index variable along z |
---|
| 1774 | INTEGER(iwp) :: l !< short for grid level |
---|
| 1775 | INTEGER(iwp) :: jys !< index for lower local PE boundary along y |
---|
| 1776 | INTEGER(iwp) :: jyn !< index for upper local PE boundary along y |
---|
| 1777 | INTEGER(iwp) :: ixl !< index for lower local PE boundary along x |
---|
| 1778 | INTEGER(iwp) :: ixr !< index for upper local PE boundary along x |
---|
[1575] | 1779 | |
---|
[1904] | 1780 | LOGICAL :: synchronous_exchange_save !< dummy to reset synchronous_exchange to prescribed value |
---|
| 1781 | |
---|
| 1782 | REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: temp !< temporary array on next coarser grid level |
---|
| 1783 | |
---|
[1609] | 1784 | #if defined ( __parallel ) |
---|
[1575] | 1785 | synchronous_exchange_save = synchronous_exchange |
---|
| 1786 | synchronous_exchange = .FALSE. |
---|
| 1787 | |
---|
| 1788 | l = grid_level |
---|
| 1789 | |
---|
| 1790 | ind_even_odd = even_odd_level(grid_level) |
---|
| 1791 | |
---|
[1904] | 1792 | ! |
---|
| 1793 | !-- Restricted transfer only on finer levels with enough data. |
---|
| 1794 | !-- Restricted transfer is not possible for levels smaller or equal to |
---|
| 1795 | !-- 'switch to PE0 levels', since array bounds does not fit. Moreover, |
---|
| 1796 | !-- it is not possible for the coarsest grid level, since the dimensions |
---|
| 1797 | !-- of temp are not defined. For such cases, normal exchange_horiz is called. |
---|
| 1798 | IF ( l > 1 .AND. l > mg_switch_to_pe0_level + 1 .AND. & |
---|
| 1799 | ( ngp_xz(grid_level) >= 900 .OR. ngp_yz(grid_level) >= 900 ) ) THEN |
---|
[1575] | 1800 | |
---|
[1904] | 1801 | jys = nys_mg(grid_level-1) |
---|
| 1802 | jyn = nyn_mg(grid_level-1) |
---|
| 1803 | ixl = nxl_mg(grid_level-1) |
---|
| 1804 | ixr = nxr_mg(grid_level-1) |
---|
| 1805 | ALLOCATE( temp(nzb:nzt_mg(l-1)+1,jys-1:jyn+1,ixl-1:ixr+1) ) |
---|
[1575] | 1806 | ! |
---|
| 1807 | !-- Handling the even k Values |
---|
| 1808 | !-- Collecting data for the north - south exchange |
---|
| 1809 | !-- Since only every second value has to be transfered, data are stored |
---|
| 1810 | !-- on the next coarser grid level, because the arrays on that level |
---|
| 1811 | !-- have just the required size |
---|
| 1812 | i1 = nxl_mg(grid_level-1) |
---|
| 1813 | i2 = nxl_mg(grid_level-1) |
---|
| 1814 | |
---|
| 1815 | DO i = nxl_mg(l), nxr_mg(l), 2 |
---|
| 1816 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
---|
| 1817 | |
---|
| 1818 | IF ( j == nys_mg(l) ) THEN |
---|
| 1819 | !DIR$ IVDEP |
---|
| 1820 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
| 1821 | temp(k-ind_even_odd,jys,i1) = p_mg(k,j,i) |
---|
| 1822 | ENDDO |
---|
| 1823 | i1 = i1 + 1 |
---|
| 1824 | |
---|
| 1825 | ENDIF |
---|
| 1826 | |
---|
| 1827 | IF ( j == nyn_mg(l) ) THEN |
---|
| 1828 | !DIR$ IVDEP |
---|
| 1829 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
| 1830 | temp(k-ind_even_odd,jyn,i2) = p_mg(k,j,i) |
---|
| 1831 | ENDDO |
---|
| 1832 | i2 = i2 + 1 |
---|
| 1833 | |
---|
| 1834 | ENDIF |
---|
| 1835 | |
---|
| 1836 | ENDDO |
---|
| 1837 | ENDDO |
---|
| 1838 | |
---|
| 1839 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
---|
| 1840 | DO j = nys_mg(l) + (color-1), nyn_mg(l), 2 |
---|
| 1841 | |
---|
| 1842 | IF ( j == nys_mg(l) ) THEN |
---|
| 1843 | !DIR$ IVDEP |
---|
| 1844 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
| 1845 | temp(k-ind_even_odd,jys,i1) = p_mg(k,j,i) |
---|
| 1846 | ENDDO |
---|
| 1847 | i1 = i1 + 1 |
---|
| 1848 | |
---|
| 1849 | ENDIF |
---|
| 1850 | |
---|
| 1851 | IF ( j == nyn_mg(l) ) THEN |
---|
| 1852 | !DIR$ IVDEP |
---|
| 1853 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
| 1854 | temp(k-ind_even_odd,jyn,i2) = p_mg(k,j,i) |
---|
| 1855 | ENDDO |
---|
| 1856 | i2 = i2 + 1 |
---|
| 1857 | |
---|
| 1858 | ENDIF |
---|
| 1859 | |
---|
| 1860 | ENDDO |
---|
| 1861 | ENDDO |
---|
| 1862 | |
---|
| 1863 | grid_level = grid_level-1 |
---|
| 1864 | |
---|
| 1865 | nxl = nxl_mg(grid_level) |
---|
| 1866 | nys = nys_mg(grid_level) |
---|
| 1867 | nxr = nxr_mg(grid_level) |
---|
| 1868 | nyn = nyn_mg(grid_level) |
---|
| 1869 | nzt = nzt_mg(grid_level) |
---|
| 1870 | |
---|
| 1871 | send_receive = 'ns' |
---|
| 1872 | CALL exchange_horiz( temp, 1 ) |
---|
| 1873 | |
---|
| 1874 | grid_level = grid_level+1 |
---|
| 1875 | |
---|
| 1876 | i1 = nxl_mg(grid_level-1) |
---|
| 1877 | i2 = nxl_mg(grid_level-1) |
---|
| 1878 | |
---|
| 1879 | DO i = nxl_mg(l), nxr_mg(l), 2 |
---|
| 1880 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
---|
| 1881 | |
---|
| 1882 | IF ( j == nys_mg(l) ) THEN |
---|
| 1883 | !DIR$ IVDEP |
---|
| 1884 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
| 1885 | p_mg(k,nyn_mg(l)+1,i) = temp(k-ind_even_odd,jyn+1,i1) |
---|
| 1886 | ENDDO |
---|
| 1887 | i1 = i1 + 1 |
---|
| 1888 | |
---|
| 1889 | ENDIF |
---|
| 1890 | |
---|
| 1891 | IF ( j == nyn_mg(l) ) THEN |
---|
| 1892 | !DIR$ IVDEP |
---|
| 1893 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
| 1894 | p_mg(k,nys_mg(l)-1,i) = temp(k-ind_even_odd,jys-1,i2) |
---|
| 1895 | ENDDO |
---|
| 1896 | i2 = i2 + 1 |
---|
| 1897 | |
---|
| 1898 | ENDIF |
---|
| 1899 | |
---|
| 1900 | ENDDO |
---|
| 1901 | ENDDO |
---|
| 1902 | |
---|
| 1903 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
---|
| 1904 | DO j = nys_mg(l) + (color-1), nyn_mg(l), 2 |
---|
| 1905 | |
---|
| 1906 | IF ( j == nys_mg(l) ) THEN |
---|
| 1907 | !DIR$ IVDEP |
---|
| 1908 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
| 1909 | p_mg(k,nyn_mg(l)+1,i) = temp(k-ind_even_odd,jyn+1,i1) |
---|
| 1910 | ENDDO |
---|
| 1911 | i1 = i1 + 1 |
---|
| 1912 | |
---|
| 1913 | ENDIF |
---|
| 1914 | |
---|
| 1915 | IF ( j == nyn_mg(l) ) THEN |
---|
| 1916 | !DIR$ IVDEP |
---|
| 1917 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
| 1918 | p_mg(k,nys_mg(l)-1,i) = temp(k-ind_even_odd,jys-1,i2) |
---|
| 1919 | ENDDO |
---|
| 1920 | i2 = i2 + 1 |
---|
| 1921 | |
---|
| 1922 | ENDIF |
---|
| 1923 | |
---|
| 1924 | ENDDO |
---|
| 1925 | ENDDO |
---|
| 1926 | |
---|
| 1927 | ! |
---|
| 1928 | !-- Collecting data for the left - right exchange |
---|
| 1929 | !-- Since only every second value has to be transfered, data are stored |
---|
| 1930 | !-- on the next coarser grid level, because the arrays on that level |
---|
| 1931 | !-- have just the required size |
---|
| 1932 | j1 = nys_mg(grid_level-1) |
---|
| 1933 | j2 = nys_mg(grid_level-1) |
---|
| 1934 | |
---|
| 1935 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
---|
| 1936 | DO i = nxl_mg(l), nxr_mg(l), 2 |
---|
| 1937 | |
---|
| 1938 | IF ( i == nxl_mg(l) ) THEN |
---|
| 1939 | !DIR$ IVDEP |
---|
| 1940 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
| 1941 | temp(k-ind_even_odd,j1,ixl) = p_mg(k,j,i) |
---|
| 1942 | ENDDO |
---|
| 1943 | j1 = j1 + 1 |
---|
| 1944 | |
---|
| 1945 | ENDIF |
---|
| 1946 | |
---|
| 1947 | IF ( i == nxr_mg(l) ) THEN |
---|
| 1948 | !DIR$ IVDEP |
---|
| 1949 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
| 1950 | temp(k-ind_even_odd,j2,ixr) = p_mg(k,j,i) |
---|
| 1951 | ENDDO |
---|
| 1952 | j2 = j2 + 1 |
---|
| 1953 | |
---|
| 1954 | ENDIF |
---|
| 1955 | |
---|
| 1956 | ENDDO |
---|
| 1957 | ENDDO |
---|
| 1958 | |
---|
| 1959 | DO j = nys_mg(l) + (color-1), nyn_mg(l), 2 |
---|
| 1960 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
---|
| 1961 | |
---|
| 1962 | IF ( i == nxl_mg(l) ) THEN |
---|
| 1963 | !DIR$ IVDEP |
---|
| 1964 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
| 1965 | temp(k-ind_even_odd,j1,ixl) = p_mg(k,j,i) |
---|
| 1966 | ENDDO |
---|
| 1967 | j1 = j1 + 1 |
---|
| 1968 | |
---|
| 1969 | ENDIF |
---|
| 1970 | |
---|
| 1971 | IF ( i == nxr_mg(l) ) THEN |
---|
| 1972 | !DIR$ IVDEP |
---|
| 1973 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
| 1974 | temp(k-ind_even_odd,j2,ixr) = p_mg(k,j,i) |
---|
| 1975 | ENDDO |
---|
| 1976 | j2 = j2 + 1 |
---|
| 1977 | |
---|
| 1978 | ENDIF |
---|
| 1979 | |
---|
| 1980 | ENDDO |
---|
| 1981 | ENDDO |
---|
| 1982 | |
---|
| 1983 | grid_level = grid_level-1 |
---|
| 1984 | send_receive = 'lr' |
---|
| 1985 | |
---|
| 1986 | CALL exchange_horiz( temp, 1 ) |
---|
| 1987 | |
---|
| 1988 | grid_level = grid_level+1 |
---|
| 1989 | |
---|
| 1990 | j1 = nys_mg(grid_level-1) |
---|
| 1991 | j2 = nys_mg(grid_level-1) |
---|
| 1992 | |
---|
| 1993 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
---|
| 1994 | DO i = nxl_mg(l), nxr_mg(l), 2 |
---|
| 1995 | |
---|
| 1996 | IF ( i == nxl_mg(l) ) THEN |
---|
| 1997 | !DIR$ IVDEP |
---|
| 1998 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
| 1999 | p_mg(k,j,nxr_mg(l)+1) = temp(k-ind_even_odd,j1,ixr+1) |
---|
| 2000 | ENDDO |
---|
| 2001 | j1 = j1 + 1 |
---|
| 2002 | |
---|
| 2003 | ENDIF |
---|
| 2004 | |
---|
| 2005 | IF ( i == nxr_mg(l) ) THEN |
---|
| 2006 | !DIR$ IVDEP |
---|
| 2007 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
| 2008 | p_mg(k,j,nxl_mg(l)-1) = temp(k-ind_even_odd,j2,ixl-1) |
---|
| 2009 | ENDDO |
---|
| 2010 | j2 = j2 + 1 |
---|
| 2011 | |
---|
| 2012 | ENDIF |
---|
| 2013 | |
---|
| 2014 | ENDDO |
---|
| 2015 | ENDDO |
---|
| 2016 | |
---|
| 2017 | DO j = nys_mg(l) + (color-1), nyn_mg(l), 2 |
---|
| 2018 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
---|
| 2019 | |
---|
| 2020 | IF ( i == nxl_mg(l) ) THEN |
---|
| 2021 | !DIR$ IVDEP |
---|
| 2022 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
| 2023 | p_mg(k,j,nxr_mg(l)+1) = temp(k-ind_even_odd,j1,ixr+1) |
---|
| 2024 | ENDDO |
---|
| 2025 | j1 = j1 + 1 |
---|
| 2026 | |
---|
| 2027 | ENDIF |
---|
| 2028 | |
---|
| 2029 | IF ( i == nxr_mg(l) ) THEN |
---|
| 2030 | !DIR$ IVDEP |
---|
| 2031 | DO k = ind_even_odd+1, nzt_mg(l) |
---|
| 2032 | p_mg(k,j,nxl_mg(l)-1) = temp(k-ind_even_odd,j2,ixl-1) |
---|
| 2033 | ENDDO |
---|
| 2034 | j2 = j2 + 1 |
---|
| 2035 | |
---|
| 2036 | ENDIF |
---|
| 2037 | |
---|
| 2038 | ENDDO |
---|
| 2039 | ENDDO |
---|
| 2040 | |
---|
| 2041 | ! |
---|
| 2042 | !-- Now handling the even k values |
---|
| 2043 | !-- Collecting data for the north - south exchange |
---|
| 2044 | !-- Since only every second value has to be transfered, data are stored |
---|
| 2045 | !-- on the next coarser grid level, because the arrays on that level |
---|
| 2046 | !-- have just the required size |
---|
| 2047 | i1 = nxl_mg(grid_level-1) |
---|
| 2048 | i2 = nxl_mg(grid_level-1) |
---|
| 2049 | |
---|
| 2050 | DO i = nxl_mg(l), nxr_mg(l), 2 |
---|
| 2051 | DO j = nys_mg(l) + (color-1), nyn_mg(l), 2 |
---|
| 2052 | |
---|
| 2053 | IF ( j == nys_mg(l) ) THEN |
---|
| 2054 | !DIR$ IVDEP |
---|
| 2055 | DO k = nzb+1, ind_even_odd |
---|
| 2056 | temp(k,jys,i1) = p_mg(k,j,i) |
---|
| 2057 | ENDDO |
---|
| 2058 | i1 = i1 + 1 |
---|
| 2059 | |
---|
| 2060 | ENDIF |
---|
| 2061 | |
---|
| 2062 | IF ( j == nyn_mg(l) ) THEN |
---|
| 2063 | !DIR$ IVDEP |
---|
| 2064 | DO k = nzb+1, ind_even_odd |
---|
| 2065 | temp(k,jyn,i2) = p_mg(k,j,i) |
---|
| 2066 | ENDDO |
---|
| 2067 | i2 = i2 + 1 |
---|
| 2068 | |
---|
| 2069 | ENDIF |
---|
| 2070 | |
---|
| 2071 | ENDDO |
---|
| 2072 | ENDDO |
---|
| 2073 | |
---|
| 2074 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
---|
| 2075 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
---|
| 2076 | |
---|
| 2077 | IF ( j == nys_mg(l) ) THEN |
---|
| 2078 | !DIR$ IVDEP |
---|
| 2079 | DO k = nzb+1, ind_even_odd |
---|
| 2080 | temp(k,jys,i1) = p_mg(k,j,i) |
---|
| 2081 | ENDDO |
---|
| 2082 | i1 = i1 + 1 |
---|
| 2083 | |
---|
| 2084 | ENDIF |
---|
| 2085 | |
---|
| 2086 | IF ( j == nyn_mg(l) ) THEN |
---|
| 2087 | !DIR$ IVDEP |
---|
| 2088 | DO k = nzb+1, ind_even_odd |
---|
| 2089 | temp(k,jyn,i2) = p_mg(k,j,i) |
---|
| 2090 | ENDDO |
---|
| 2091 | i2 = i2 + 1 |
---|
| 2092 | |
---|
| 2093 | ENDIF |
---|
| 2094 | |
---|
| 2095 | ENDDO |
---|
| 2096 | ENDDO |
---|
| 2097 | |
---|
| 2098 | grid_level = grid_level-1 |
---|
| 2099 | |
---|
| 2100 | send_receive = 'ns' |
---|
| 2101 | CALL exchange_horiz( temp, 1 ) |
---|
| 2102 | |
---|
| 2103 | grid_level = grid_level+1 |
---|
| 2104 | |
---|
| 2105 | i1 = nxl_mg(grid_level-1) |
---|
| 2106 | i2 = nxl_mg(grid_level-1) |
---|
| 2107 | |
---|
| 2108 | DO i = nxl_mg(l), nxr_mg(l), 2 |
---|
| 2109 | DO j = nys_mg(l) + (color-1), nyn_mg(l), 2 |
---|
| 2110 | |
---|
| 2111 | IF ( j == nys_mg(l) ) THEN |
---|
| 2112 | !DIR$ IVDEP |
---|
| 2113 | DO k = nzb+1, ind_even_odd |
---|
| 2114 | p_mg(k,nyn_mg(l)+1,i) = temp(k,jyn+1,i1) |
---|
| 2115 | ENDDO |
---|
| 2116 | i1 = i1 + 1 |
---|
| 2117 | |
---|
| 2118 | ENDIF |
---|
| 2119 | |
---|
| 2120 | IF ( j == nyn_mg(l) ) THEN |
---|
| 2121 | !DIR$ IVDEP |
---|
| 2122 | DO k = nzb+1, ind_even_odd |
---|
| 2123 | p_mg(k,nys_mg(l)-1,i) = temp(k,jys-1,i2) |
---|
| 2124 | ENDDO |
---|
| 2125 | i2 = i2 + 1 |
---|
| 2126 | |
---|
| 2127 | ENDIF |
---|
| 2128 | |
---|
| 2129 | ENDDO |
---|
| 2130 | ENDDO |
---|
| 2131 | |
---|
| 2132 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
---|
| 2133 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
---|
| 2134 | |
---|
| 2135 | IF ( j == nys_mg(l) ) THEN |
---|
| 2136 | !DIR$ IVDEP |
---|
| 2137 | DO k = nzb+1, ind_even_odd |
---|
| 2138 | p_mg(k,nyn_mg(l)+1,i) = temp(k,jyn+1,i1) |
---|
| 2139 | ENDDO |
---|
| 2140 | i1 = i1 + 1 |
---|
| 2141 | |
---|
| 2142 | ENDIF |
---|
| 2143 | |
---|
| 2144 | IF ( j == nyn_mg(l) ) THEN |
---|
| 2145 | !DIR$ IVDEP |
---|
| 2146 | DO k = nzb+1, ind_even_odd |
---|
| 2147 | p_mg(k,nys_mg(l)-1,i) = temp(k,jys-1,i2) |
---|
| 2148 | ENDDO |
---|
| 2149 | i2 = i2 + 1 |
---|
| 2150 | |
---|
| 2151 | ENDIF |
---|
| 2152 | |
---|
| 2153 | ENDDO |
---|
| 2154 | ENDDO |
---|
| 2155 | |
---|
| 2156 | j1 = nys_mg(grid_level-1) |
---|
| 2157 | j2 = nys_mg(grid_level-1) |
---|
| 2158 | |
---|
| 2159 | DO i = nxl_mg(l), nxr_mg(l), 2 |
---|
| 2160 | DO j = nys_mg(l) + (color-1), nyn_mg(l), 2 |
---|
| 2161 | |
---|
| 2162 | IF ( i == nxl_mg(l) ) THEN |
---|
| 2163 | !DIR$ IVDEP |
---|
| 2164 | DO k = nzb+1, ind_even_odd |
---|
| 2165 | temp(k,j1,ixl) = p_mg(k,j,i) |
---|
| 2166 | ENDDO |
---|
| 2167 | j1 = j1 + 1 |
---|
| 2168 | |
---|
| 2169 | ENDIF |
---|
| 2170 | |
---|
| 2171 | IF ( i == nxr_mg(l) ) THEN |
---|
| 2172 | !DIR$ IVDEP |
---|
| 2173 | DO k = nzb+1, ind_even_odd |
---|
| 2174 | temp(k,j2,ixr) = p_mg(k,j,i) |
---|
| 2175 | ENDDO |
---|
| 2176 | j2 = j2 + 1 |
---|
| 2177 | |
---|
| 2178 | ENDIF |
---|
| 2179 | |
---|
| 2180 | ENDDO |
---|
| 2181 | ENDDO |
---|
| 2182 | |
---|
| 2183 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
---|
| 2184 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
---|
| 2185 | |
---|
| 2186 | IF ( i == nxl_mg(l) ) THEN |
---|
| 2187 | !DIR$ IVDEP |
---|
| 2188 | DO k = nzb+1, ind_even_odd |
---|
| 2189 | temp(k,j1,ixl) = p_mg(k,j,i) |
---|
| 2190 | ENDDO |
---|
| 2191 | j1 = j1 + 1 |
---|
| 2192 | |
---|
| 2193 | ENDIF |
---|
| 2194 | |
---|
| 2195 | IF ( i == nxr_mg(l) ) THEN |
---|
| 2196 | !DIR$ IVDEP |
---|
| 2197 | DO k = nzb+1, ind_even_odd |
---|
| 2198 | temp(k,j2,ixr) = p_mg(k,j,i) |
---|
| 2199 | ENDDO |
---|
| 2200 | j2 = j2 + 1 |
---|
| 2201 | |
---|
| 2202 | ENDIF |
---|
| 2203 | |
---|
| 2204 | ENDDO |
---|
| 2205 | ENDDO |
---|
| 2206 | |
---|
| 2207 | grid_level = grid_level-1 |
---|
| 2208 | |
---|
| 2209 | send_receive = 'lr' |
---|
| 2210 | CALL exchange_horiz( temp, 1 ) |
---|
| 2211 | |
---|
| 2212 | grid_level = grid_level+1 |
---|
| 2213 | |
---|
| 2214 | nxl = nxl_mg(grid_level) |
---|
| 2215 | nys = nys_mg(grid_level) |
---|
| 2216 | nxr = nxr_mg(grid_level) |
---|
| 2217 | nyn = nyn_mg(grid_level) |
---|
| 2218 | nzt = nzt_mg(grid_level) |
---|
| 2219 | |
---|
| 2220 | j1 = nys_mg(grid_level-1) |
---|
| 2221 | j2 = nys_mg(grid_level-1) |
---|
| 2222 | |
---|
| 2223 | DO i = nxl_mg(l), nxr_mg(l), 2 |
---|
| 2224 | DO j = nys_mg(l) + (color-1), nyn_mg(l), 2 |
---|
| 2225 | |
---|
| 2226 | IF ( i == nxl_mg(l) ) THEN |
---|
| 2227 | !DIR$ IVDEP |
---|
| 2228 | DO k = nzb+1, ind_even_odd |
---|
| 2229 | p_mg(k,j,nxr_mg(l)+1) = temp(k,j1,ixr+1) |
---|
| 2230 | ENDDO |
---|
| 2231 | j1 = j1 + 1 |
---|
| 2232 | |
---|
| 2233 | ENDIF |
---|
| 2234 | |
---|
| 2235 | IF ( i == nxr_mg(l) ) THEN |
---|
| 2236 | !DIR$ IVDEP |
---|
| 2237 | DO k = nzb+1, ind_even_odd |
---|
| 2238 | p_mg(k,j,nxl_mg(l)-1) = temp(k,j2,ixl-1) |
---|
| 2239 | ENDDO |
---|
| 2240 | j2 = j2 + 1 |
---|
| 2241 | |
---|
| 2242 | ENDIF |
---|
| 2243 | |
---|
| 2244 | ENDDO |
---|
| 2245 | ENDDO |
---|
| 2246 | |
---|
| 2247 | DO i = nxl_mg(l)+1, nxr_mg(l), 2 |
---|
| 2248 | DO j = nys_mg(l) + 2 - color, nyn_mg(l), 2 |
---|
| 2249 | |
---|
| 2250 | IF ( i == nxl_mg(l) ) THEN |
---|
| 2251 | !DIR$ IVDEP |
---|
| 2252 | DO k = nzb+1, ind_even_odd |
---|
| 2253 | p_mg(k,j,nxr_mg(l)+1) = temp(k,j1,ixr+1) |
---|
| 2254 | ENDDO |
---|
| 2255 | j1 = j1 + 1 |
---|
| 2256 | |
---|
| 2257 | ENDIF |
---|
| 2258 | |
---|
| 2259 | IF ( i == nxr_mg(l) ) THEN |
---|
| 2260 | !DIR$ IVDEP |
---|
| 2261 | DO k = nzb+1, ind_even_odd |
---|
| 2262 | p_mg(k,j,nxl_mg(l)-1) = temp(k,j2,ixl-1) |
---|
| 2263 | ENDDO |
---|
| 2264 | j2 = j2 + 1 |
---|
| 2265 | |
---|
| 2266 | ENDIF |
---|
| 2267 | |
---|
| 2268 | ENDDO |
---|
| 2269 | ENDDO |
---|
| 2270 | |
---|
[1904] | 2271 | DEALLOCATE( temp ) |
---|
| 2272 | |
---|
[1575] | 2273 | ELSE |
---|
[1609] | 2274 | |
---|
[1575] | 2275 | ! |
---|
| 2276 | !-- Standard horizontal ghost boundary exchange for small coarse grid |
---|
| 2277 | !-- levels, where the transfer time is latency bound |
---|
| 2278 | CALL exchange_horiz( p_mg, 1 ) |
---|
| 2279 | |
---|
| 2280 | ENDIF |
---|
| 2281 | |
---|
| 2282 | ! |
---|
| 2283 | !-- Reset values to default PALM setup |
---|
| 2284 | synchronous_exchange = synchronous_exchange_save |
---|
| 2285 | send_receive = 'al' |
---|
[1609] | 2286 | #else |
---|
[1575] | 2287 | |
---|
[1609] | 2288 | ! |
---|
| 2289 | !-- Standard horizontal ghost boundary exchange for small coarse grid |
---|
| 2290 | !-- levels, where the transfer time is latency bound |
---|
| 2291 | CALL exchange_horiz( p_mg, 1 ) |
---|
| 2292 | #endif |
---|
| 2293 | |
---|
[1575] | 2294 | END SUBROUTINE special_exchange_horiz |
---|
| 2295 | |
---|
| 2296 | END MODULE poismg_mod |
---|