| 1 | SUBROUTINE exchange_horiz_2d( ar ) |
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| 2 | |
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| 3 | !--------------------------------------------------------------------------------! |
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| 4 | ! This file is part of PALM. |
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| 5 | ! |
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| 6 | ! PALM is free software: you can redistribute it and/or modify it under the terms |
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| 7 | ! of the GNU General Public License as published by the Free Software Foundation, |
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| 8 | ! either version 3 of the License, or (at your option) any later version. |
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| 9 | ! |
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| 10 | ! PALM is distributed in the hope that it will be useful, but WITHOUT ANY |
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| 11 | ! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR |
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| 12 | ! A PARTICULAR PURPOSE. See the GNU General Public License for more details. |
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| 13 | ! |
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| 14 | ! You should have received a copy of the GNU General Public License along with |
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| 15 | ! PALM. If not, see <http://www.gnu.org/licenses/>. |
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| 16 | ! |
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| 17 | ! Copyright 1997-2014 Leibniz Universitaet Hannover |
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| 18 | !--------------------------------------------------------------------------------! |
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| 19 | ! |
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| 20 | ! Current revisions: |
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| 21 | ! ----------------- |
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| 22 | ! |
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| 23 | ! |
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| 24 | ! Former revisions: |
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| 25 | ! ----------------- |
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| 26 | ! $Id: exchange_horiz_2d.f90 1321 2014-03-20 09:40:40Z raasch $ |
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| 27 | ! |
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| 28 | ! 1320 2014-03-20 08:40:49Z raasch |
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| 29 | ! ONLY-attribute added to USE-statements, |
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| 30 | ! kind-parameters added to all INTEGER and REAL declaration statements, |
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| 31 | ! kinds are defined in new module kinds, |
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| 32 | ! revision history before 2012 removed, |
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| 33 | ! comment fields (!:) to be used for variable explanations added to |
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| 34 | ! all variable declaration statements |
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| 35 | ! |
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| 36 | ! 1092 2013-02-02 11:24:22Z raasch |
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| 37 | ! unused variables removed |
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| 38 | ! |
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| 39 | ! 1036 2012-10-22 13:43:42Z raasch |
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| 40 | ! code put under GPL (PALM 3.9) |
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| 41 | ! |
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| 42 | ! 841 2012-02-28 12:29:49Z maronga |
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| 43 | ! Excluded routine from compilation of namelist_file_check |
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| 44 | ! |
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| 45 | ! Revision 1.1 1998/01/23 09:58:21 raasch |
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| 46 | ! Initial revision |
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| 47 | ! |
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| 48 | ! |
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| 49 | ! Description: |
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| 50 | ! ------------ |
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| 51 | ! Exchange of lateral (ghost) boundaries (parallel computers) and cyclic |
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| 52 | ! boundary conditions, respectively, for 2D-arrays. |
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| 53 | !------------------------------------------------------------------------------! |
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| 54 | |
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| 55 | USE control_parameters, & |
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| 56 | ONLY : inflow_l, inflow_n, inflow_r, inflow_s, outflow_l, outflow_n, & |
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| 57 | outflow_r, outflow_s |
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| 58 | |
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| 59 | USE cpulog, & |
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| 60 | ONLY : cpu_log, log_point_s |
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| 61 | |
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| 62 | USE indices, & |
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| 63 | ONLY : nbgp, nxl, nxlg, nxr, nxrg, nyn, nyng, nys, nysg |
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| 64 | |
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| 65 | USE kinds |
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| 66 | |
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| 67 | USE pegrid |
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| 68 | |
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| 69 | IMPLICIT NONE |
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| 70 | |
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| 71 | |
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| 72 | INTEGER(iwp) :: i !: |
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| 73 | |
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| 74 | REAL(wp) :: ar(nysg:nyng,nxlg:nxrg) !: |
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| 75 | |
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| 76 | |
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| 77 | #if ! defined( __check ) |
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| 78 | CALL cpu_log( log_point_s(13), 'exchange_horiz_2d', 'start' ) |
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| 79 | |
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| 80 | #if defined( __parallel ) |
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| 81 | |
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| 82 | ! |
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| 83 | !-- Exchange of lateral boundary values for parallel computers |
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| 84 | IF ( pdims(1) == 1 ) THEN |
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| 85 | |
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| 86 | ! |
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| 87 | !-- One-dimensional decomposition along y, boundary values can be exchanged |
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| 88 | !-- within the PE memory |
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| 89 | ar(:,nxlg:nxl-1) = ar(:,nxr-nbgp+1:nxr) |
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| 90 | ar(:,nxr+1:nxrg) = ar(:,nxl:nxl+nbgp-1) |
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| 91 | |
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| 92 | ELSE |
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| 93 | ! |
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| 94 | !-- Send left boundary, receive right one |
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| 95 | |
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| 96 | CALL MPI_SENDRECV( ar(nysg,nxl), 1, type_y, pleft, 0, & |
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| 97 | ar(nysg,nxr+1), 1, type_y, pright, 0, & |
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| 98 | comm2d, status, ierr ) |
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| 99 | ! |
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| 100 | !-- Send right boundary, receive left one |
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| 101 | CALL MPI_SENDRECV( ar(nysg,nxr+1-nbgp), 1, type_y, pright, 1, & |
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| 102 | ar(nysg,nxlg), 1, type_y, pleft, 1, & |
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| 103 | comm2d, status, ierr ) |
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| 104 | |
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| 105 | |
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| 106 | ENDIF |
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| 107 | |
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| 108 | IF ( pdims(2) == 1 ) THEN |
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| 109 | ! |
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| 110 | !-- One-dimensional decomposition along x, boundary values can be exchanged |
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| 111 | !-- within the PE memory |
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| 112 | ar(nysg:nys-1,:) = ar(nyn-nbgp+1:nyn,:) |
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| 113 | ar(nyn+1:nyng,:) = ar(nys:nys+nbgp-1,:) |
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| 114 | |
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| 115 | ELSE |
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| 116 | ! |
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| 117 | !-- Send front boundary, receive rear one |
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| 118 | |
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| 119 | CALL MPI_SENDRECV( ar(nys,nxlg), 1, type_x, psouth, 0, & |
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| 120 | ar(nyn+1,nxlg), 1, type_x, pnorth, 0, & |
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| 121 | comm2d, status, ierr ) |
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| 122 | ! |
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| 123 | !-- Send rear boundary, receive front one |
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| 124 | CALL MPI_SENDRECV( ar(nyn+1-nbgp,nxlg), 1, type_x, pnorth, 1, & |
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| 125 | ar(nysg,nxlg), 1, type_x, psouth, 1, & |
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| 126 | comm2d, status, ierr ) |
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| 127 | |
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| 128 | ENDIF |
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| 129 | |
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| 130 | #else |
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| 131 | |
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| 132 | ! |
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| 133 | !-- Lateral boundary conditions in the non-parallel case |
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| 134 | IF ( bc_lr_cyc ) THEN |
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| 135 | ar(:,nxlg:nxl-1) = ar(:,nxr-nbgp+1:nxr) |
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| 136 | ar(:,nxr+1:nxrg) = ar(:,nxl:nxl+nbgp-1) |
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| 137 | ENDIF |
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| 138 | |
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| 139 | IF ( bc_ns_cyc ) THEN |
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| 140 | ar(nysg:nys-1,:) = ar(nyn-nbgp+1:nyn,:) |
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| 141 | ar(nyn+1:nyng,:) = ar(nys:nys+nbgp-1,:) |
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| 142 | ENDIF |
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| 143 | |
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| 144 | |
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| 145 | #endif |
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| 146 | |
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| 147 | ! |
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| 148 | !-- Neumann-conditions at inflow/outflow in case of non-cyclic boundary |
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| 149 | !-- conditions |
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| 150 | IF ( inflow_l .OR. outflow_l ) THEN |
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| 151 | DO i=nbgp, 1, -1 |
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| 152 | ar(:,nxl-i) = ar(:,nxl) |
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| 153 | END DO |
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| 154 | END IF |
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| 155 | IF ( inflow_r .OR. outflow_r ) THEN |
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| 156 | DO i=1, nbgp |
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| 157 | ar(:,nxr+i) = ar(:,nxr) |
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| 158 | END DO |
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| 159 | END IF |
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| 160 | IF ( inflow_s .OR. outflow_s ) THEN |
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| 161 | DO i=nbgp, 1, -1 |
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| 162 | ar(nys-i,:) = ar(nys,:) |
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| 163 | END DO |
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| 164 | END IF |
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| 165 | IF ( inflow_n .OR. outflow_n ) THEN |
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| 166 | DO i=1, nbgp |
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| 167 | ar(nyn+i,:) = ar(nyn,:) |
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| 168 | END DO |
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| 169 | END IF |
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| 170 | CALL cpu_log( log_point_s(13), 'exchange_horiz_2d', 'stop' ) |
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| 171 | |
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| 172 | #endif |
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| 173 | END SUBROUTINE exchange_horiz_2d |
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| 174 | |
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| 175 | |
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| 176 | |
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| 177 | SUBROUTINE exchange_horiz_2d_int( ar ) |
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| 178 | |
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| 179 | !------------------------------------------------------------------------------! |
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| 180 | ! Description: |
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| 181 | ! ------------ |
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| 182 | ! Exchange of lateral (ghost) boundaries (parallel computers) and cyclic |
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| 183 | ! boundary conditions, respectively, for 2D integer arrays. |
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| 184 | !------------------------------------------------------------------------------! |
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| 185 | |
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| 186 | USE control_parameters, & |
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| 187 | ONLY: bc_lr_cyc, bc_ns_cyc |
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| 188 | |
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| 189 | USE cpulog, & |
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| 190 | ONLY: cpu_log, log_point_s |
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| 191 | |
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| 192 | USE indices, & |
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| 193 | ONLY: nbgp, nxl, nxlg, nxr, nxrg, nyn, nyng, nys, nysg |
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| 194 | |
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| 195 | USE kinds |
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| 196 | |
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| 197 | USE pegrid |
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| 198 | |
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| 199 | IMPLICIT NONE |
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| 200 | |
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| 201 | INTEGER(iwp) :: ar(nysg:nyng,nxlg:nxrg) !: |
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| 202 | |
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| 203 | #if ! defined( __check ) |
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| 204 | CALL cpu_log( log_point_s(13), 'exchange_horiz_2d', 'start' ) |
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| 205 | |
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| 206 | #if defined( __parallel ) |
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| 207 | |
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| 208 | ! |
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| 209 | !-- Exchange of lateral boundary values for parallel computers |
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| 210 | IF ( pdims(1) == 1 ) THEN |
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| 211 | |
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| 212 | ! |
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| 213 | !-- One-dimensional decomposition along y, boundary values can be exchanged |
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| 214 | !-- within the PE memory |
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| 215 | ar(:,nxlg:nxl-1) = ar(:,nxr-nbgp+1:nxr) |
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| 216 | ar(:,nxr+1:nxrg) = ar(:,nxl:nxl+nbgp-1) |
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| 217 | |
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| 218 | |
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| 219 | ELSE |
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| 220 | ! |
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| 221 | !-- Send left boundary, receive right one |
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| 222 | CALL MPI_SENDRECV( ar(nysg,nxl), 1, type_y_int, pleft, 0, & |
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| 223 | ar(nysg,nxr+1), 1, type_y_int, pright, 0, & |
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| 224 | comm2d, status, ierr ) |
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| 225 | ! |
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| 226 | !-- Send right boundary, receive left one |
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| 227 | CALL MPI_SENDRECV( ar(nysg,nxr+1-nbgp), 1, type_y_int, pright, 1, & |
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| 228 | ar(nysg,nxlg), 1, type_y_int, pleft, 1, & |
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| 229 | comm2d, status, ierr ) |
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| 230 | |
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| 231 | ENDIF |
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| 232 | |
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| 233 | IF ( pdims(2) == 1 ) THEN |
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| 234 | ! |
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| 235 | !-- One-dimensional decomposition along x, boundary values can be exchanged |
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| 236 | !-- within the PE memory |
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| 237 | ar(nysg:nys-1,:) = ar(nyn+1-nbgp:nyn,:) |
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| 238 | ar(nyn+1:nyng,:) = ar(nys:nys-1+nbgp,:) |
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| 239 | |
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| 240 | |
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| 241 | ELSE |
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| 242 | ! |
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| 243 | !-- Send front boundary, receive rear one |
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| 244 | CALL MPI_SENDRECV( ar(nys,nxlg), 1, type_x_int, psouth, 0, & |
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| 245 | ar(nyn+1,nxlg), 1, type_x_int, pnorth, 0, & |
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| 246 | comm2d, status, ierr ) |
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| 247 | |
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| 248 | ! |
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| 249 | !-- Send rear boundary, receive front one |
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| 250 | CALL MPI_SENDRECV( ar(nyn+1-nbgp,nxlg), 1, type_x_int, pnorth, 1, & |
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| 251 | ar(nysg,nxlg), 1, type_x_int, psouth, 1, & |
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| 252 | comm2d, status, ierr ) |
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| 253 | |
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| 254 | ENDIF |
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| 255 | |
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| 256 | #else |
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| 257 | |
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| 258 | ! |
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| 259 | !-- Lateral boundary conditions in the non-parallel case |
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| 260 | IF ( bc_lr_cyc ) THEN |
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| 261 | ar(:,nxlg:nxl-1) = ar(:,nxr-nbgp+1:nxr) |
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| 262 | ar(:,nxr+1:nxrg) = ar(:,nxl:nxl+nbgp-1) |
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| 263 | ENDIF |
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| 264 | |
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| 265 | IF ( bc_ns_cyc ) THEN |
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| 266 | ar(nysg:nys-1,:) = ar(nyn+1-nbgp:nyn,:) |
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| 267 | ar(nyn+1:nyng,:) = ar(nys:nys-1+nbgp,:) |
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| 268 | ENDIF |
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| 269 | |
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| 270 | #endif |
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| 271 | CALL cpu_log( log_point_s(13), 'exchange_horiz_2d', 'stop' ) |
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| 272 | |
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| 273 | #endif |
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| 274 | END SUBROUTINE exchange_horiz_2d_int |
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