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 1349 2014-03-27 18:03:27Z heinze $ |
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27 | ! |
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28 | ! 1348 2014-03-27 18:01:03Z raasch |
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29 | ! bugfix: bc_lr_cyc and bc_ns_cyc added to ONLY-list |
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30 | ! |
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31 | ! 1320 2014-03-20 08:40:49Z raasch |
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32 | ! ONLY-attribute added to USE-statements, |
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33 | ! kind-parameters added to all INTEGER and REAL declaration statements, |
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34 | ! kinds are defined in new module kinds, |
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35 | ! revision history before 2012 removed, |
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36 | ! comment fields (!:) to be used for variable explanations added to |
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37 | ! all variable declaration statements |
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38 | ! |
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39 | ! 1092 2013-02-02 11:24:22Z raasch |
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40 | ! unused variables removed |
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41 | ! |
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42 | ! 1036 2012-10-22 13:43:42Z raasch |
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43 | ! code put under GPL (PALM 3.9) |
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44 | ! |
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45 | ! 841 2012-02-28 12:29:49Z maronga |
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46 | ! Excluded routine from compilation of namelist_file_check |
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47 | ! |
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48 | ! Revision 1.1 1998/01/23 09:58:21 raasch |
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49 | ! Initial revision |
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50 | ! |
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51 | ! |
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52 | ! Description: |
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53 | ! ------------ |
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54 | ! Exchange of lateral (ghost) boundaries (parallel computers) and cyclic |
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55 | ! boundary conditions, respectively, for 2D-arrays. |
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56 | !------------------------------------------------------------------------------! |
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57 | |
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58 | USE control_parameters, & |
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59 | ONLY : bc_lr_cyc, bc_ns_cyc, inflow_l, inflow_n, inflow_r, inflow_s, & |
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60 | outflow_l, outflow_n, outflow_r, outflow_s |
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61 | |
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62 | USE cpulog, & |
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63 | ONLY : cpu_log, log_point_s |
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64 | |
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65 | USE indices, & |
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66 | ONLY : nbgp, nxl, nxlg, nxr, nxrg, nyn, nyng, nys, nysg |
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67 | |
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68 | USE kinds |
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69 | |
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70 | USE pegrid |
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71 | |
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72 | IMPLICIT NONE |
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73 | |
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74 | |
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75 | INTEGER(iwp) :: i !: |
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76 | |
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77 | REAL(wp) :: ar(nysg:nyng,nxlg:nxrg) !: |
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78 | |
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79 | |
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80 | #if ! defined( __check ) |
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81 | CALL cpu_log( log_point_s(13), 'exchange_horiz_2d', 'start' ) |
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82 | |
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83 | #if defined( __parallel ) |
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84 | |
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85 | ! |
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86 | !-- Exchange of lateral boundary values for parallel computers |
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87 | IF ( pdims(1) == 1 ) THEN |
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88 | |
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89 | ! |
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90 | !-- One-dimensional decomposition along y, boundary values can be exchanged |
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91 | !-- within the PE memory |
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92 | ar(:,nxlg:nxl-1) = ar(:,nxr-nbgp+1:nxr) |
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93 | ar(:,nxr+1:nxrg) = ar(:,nxl:nxl+nbgp-1) |
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94 | |
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95 | ELSE |
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96 | ! |
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97 | !-- Send left boundary, receive right one |
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98 | |
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99 | CALL MPI_SENDRECV( ar(nysg,nxl), 1, type_y, pleft, 0, & |
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100 | ar(nysg,nxr+1), 1, type_y, pright, 0, & |
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101 | comm2d, status, ierr ) |
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102 | ! |
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103 | !-- Send right boundary, receive left one |
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104 | CALL MPI_SENDRECV( ar(nysg,nxr+1-nbgp), 1, type_y, pright, 1, & |
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105 | ar(nysg,nxlg), 1, type_y, pleft, 1, & |
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106 | comm2d, status, ierr ) |
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107 | |
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108 | |
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109 | ENDIF |
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110 | |
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111 | IF ( pdims(2) == 1 ) THEN |
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112 | ! |
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113 | !-- One-dimensional decomposition along x, boundary values can be exchanged |
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114 | !-- within the PE memory |
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115 | ar(nysg:nys-1,:) = ar(nyn-nbgp+1:nyn,:) |
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116 | ar(nyn+1:nyng,:) = ar(nys:nys+nbgp-1,:) |
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117 | |
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118 | ELSE |
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119 | ! |
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120 | !-- Send front boundary, receive rear one |
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121 | |
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122 | CALL MPI_SENDRECV( ar(nys,nxlg), 1, type_x, psouth, 0, & |
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123 | ar(nyn+1,nxlg), 1, type_x, pnorth, 0, & |
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124 | comm2d, status, ierr ) |
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125 | ! |
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126 | !-- Send rear boundary, receive front one |
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127 | CALL MPI_SENDRECV( ar(nyn+1-nbgp,nxlg), 1, type_x, pnorth, 1, & |
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128 | ar(nysg,nxlg), 1, type_x, psouth, 1, & |
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129 | comm2d, status, ierr ) |
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130 | |
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131 | ENDIF |
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132 | |
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133 | #else |
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134 | |
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135 | ! |
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136 | !-- Lateral boundary conditions in the non-parallel case |
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137 | IF ( bc_lr_cyc ) THEN |
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138 | ar(:,nxlg:nxl-1) = ar(:,nxr-nbgp+1:nxr) |
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139 | ar(:,nxr+1:nxrg) = ar(:,nxl:nxl+nbgp-1) |
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140 | ENDIF |
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141 | |
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142 | IF ( bc_ns_cyc ) THEN |
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143 | ar(nysg:nys-1,:) = ar(nyn-nbgp+1:nyn,:) |
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144 | ar(nyn+1:nyng,:) = ar(nys:nys+nbgp-1,:) |
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145 | ENDIF |
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146 | |
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147 | |
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148 | #endif |
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149 | |
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150 | ! |
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151 | !-- Neumann-conditions at inflow/outflow in case of non-cyclic boundary |
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152 | !-- conditions |
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153 | IF ( inflow_l .OR. outflow_l ) THEN |
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154 | DO i=nbgp, 1, -1 |
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155 | ar(:,nxl-i) = ar(:,nxl) |
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156 | END DO |
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157 | END IF |
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158 | IF ( inflow_r .OR. outflow_r ) THEN |
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159 | DO i=1, nbgp |
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160 | ar(:,nxr+i) = ar(:,nxr) |
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161 | END DO |
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162 | END IF |
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163 | IF ( inflow_s .OR. outflow_s ) THEN |
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164 | DO i=nbgp, 1, -1 |
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165 | ar(nys-i,:) = ar(nys,:) |
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166 | END DO |
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167 | END IF |
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168 | IF ( inflow_n .OR. outflow_n ) THEN |
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169 | DO i=1, nbgp |
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170 | ar(nyn+i,:) = ar(nyn,:) |
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171 | END DO |
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172 | END IF |
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173 | CALL cpu_log( log_point_s(13), 'exchange_horiz_2d', 'stop' ) |
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174 | |
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175 | #endif |
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176 | END SUBROUTINE exchange_horiz_2d |
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177 | |
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178 | |
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179 | |
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180 | SUBROUTINE exchange_horiz_2d_int( ar ) |
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181 | |
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182 | !------------------------------------------------------------------------------! |
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183 | ! Description: |
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184 | ! ------------ |
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185 | ! Exchange of lateral (ghost) boundaries (parallel computers) and cyclic |
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186 | ! boundary conditions, respectively, for 2D integer arrays. |
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187 | !------------------------------------------------------------------------------! |
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188 | |
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189 | USE control_parameters, & |
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190 | ONLY: bc_lr_cyc, bc_ns_cyc |
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191 | |
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192 | USE cpulog, & |
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193 | ONLY: cpu_log, log_point_s |
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194 | |
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195 | USE indices, & |
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196 | ONLY: nbgp, nxl, nxlg, nxr, nxrg, nyn, nyng, nys, nysg |
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197 | |
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198 | USE kinds |
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199 | |
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200 | USE pegrid |
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201 | |
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202 | IMPLICIT NONE |
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203 | |
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204 | INTEGER(iwp) :: ar(nysg:nyng,nxlg:nxrg) !: |
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205 | |
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206 | #if ! defined( __check ) |
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207 | CALL cpu_log( log_point_s(13), 'exchange_horiz_2d', 'start' ) |
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208 | |
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209 | #if defined( __parallel ) |
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210 | |
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211 | ! |
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212 | !-- Exchange of lateral boundary values for parallel computers |
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213 | IF ( pdims(1) == 1 ) THEN |
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214 | |
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215 | ! |
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216 | !-- One-dimensional decomposition along y, boundary values can be exchanged |
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217 | !-- within the PE memory |
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218 | ar(:,nxlg:nxl-1) = ar(:,nxr-nbgp+1:nxr) |
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219 | ar(:,nxr+1:nxrg) = ar(:,nxl:nxl+nbgp-1) |
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220 | |
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221 | |
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222 | ELSE |
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223 | ! |
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224 | !-- Send left boundary, receive right one |
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225 | CALL MPI_SENDRECV( ar(nysg,nxl), 1, type_y_int, pleft, 0, & |
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226 | ar(nysg,nxr+1), 1, type_y_int, pright, 0, & |
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227 | comm2d, status, ierr ) |
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228 | ! |
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229 | !-- Send right boundary, receive left one |
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230 | CALL MPI_SENDRECV( ar(nysg,nxr+1-nbgp), 1, type_y_int, pright, 1, & |
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231 | ar(nysg,nxlg), 1, type_y_int, pleft, 1, & |
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232 | comm2d, status, ierr ) |
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233 | |
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234 | ENDIF |
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235 | |
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236 | IF ( pdims(2) == 1 ) THEN |
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237 | ! |
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238 | !-- One-dimensional decomposition along x, boundary values can be exchanged |
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239 | !-- within the PE memory |
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240 | ar(nysg:nys-1,:) = ar(nyn+1-nbgp:nyn,:) |
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241 | ar(nyn+1:nyng,:) = ar(nys:nys-1+nbgp,:) |
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242 | |
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243 | |
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244 | ELSE |
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245 | ! |
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246 | !-- Send front boundary, receive rear one |
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247 | CALL MPI_SENDRECV( ar(nys,nxlg), 1, type_x_int, psouth, 0, & |
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248 | ar(nyn+1,nxlg), 1, type_x_int, pnorth, 0, & |
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249 | comm2d, status, ierr ) |
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250 | |
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251 | ! |
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252 | !-- Send rear boundary, receive front one |
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253 | CALL MPI_SENDRECV( ar(nyn+1-nbgp,nxlg), 1, type_x_int, pnorth, 1, & |
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254 | ar(nysg,nxlg), 1, type_x_int, psouth, 1, & |
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255 | comm2d, status, ierr ) |
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256 | |
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257 | ENDIF |
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258 | |
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259 | #else |
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260 | |
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261 | ! |
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262 | !-- Lateral boundary conditions in the non-parallel case |
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263 | IF ( bc_lr_cyc ) THEN |
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264 | ar(:,nxlg:nxl-1) = ar(:,nxr-nbgp+1:nxr) |
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265 | ar(:,nxr+1:nxrg) = ar(:,nxl:nxl+nbgp-1) |
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266 | ENDIF |
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267 | |
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268 | IF ( bc_ns_cyc ) THEN |
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269 | ar(nysg:nys-1,:) = ar(nyn+1-nbgp:nyn,:) |
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270 | ar(nyn+1:nyng,:) = ar(nys:nys-1+nbgp,:) |
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271 | ENDIF |
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272 | |
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273 | #endif |
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274 | CALL cpu_log( log_point_s(13), 'exchange_horiz_2d', 'stop' ) |
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275 | |
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276 | #endif |
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277 | END SUBROUTINE exchange_horiz_2d_int |
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