1 | !> @file exchange_horiz_2d.f90 |
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2 | !------------------------------------------------------------------------------! |
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3 | ! This file is part of PALM. |
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4 | ! |
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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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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 1997-2017 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 2101 2017-01-05 16:42:31Z knoop $ |
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27 | ! |
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28 | ! 2000 2016-08-20 18:09:15Z knoop |
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29 | ! Forced header and separation lines into 80 columns |
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30 | ! |
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31 | ! 1968 2016-07-18 12:01:49Z suehring |
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32 | ! 2D-INTEGER exchange adopted for different multigrid level |
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33 | ! |
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34 | ! 1818 2016-04-06 15:53:27Z maronga |
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35 | ! Initial version of purely vertical nesting introduced. |
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36 | ! |
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37 | ! 1804 2016-04-05 16:30:18Z maronga |
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38 | ! Removed code for parameter file check (__check) |
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39 | ! |
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40 | ! 1762 2016-02-25 12:31:13Z hellstea |
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41 | ! Introduction of nested domain feature |
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42 | ! |
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43 | ! 1682 2015-10-07 23:56:08Z knoop |
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44 | ! Code annotations made doxygen readable |
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45 | ! |
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46 | ! 1348 2014-03-27 18:01:03Z raasch |
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47 | ! bugfix: bc_lr_cyc and bc_ns_cyc added to ONLY-list |
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48 | ! |
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49 | ! 1320 2014-03-20 08:40:49Z raasch |
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50 | ! ONLY-attribute added to USE-statements, |
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51 | ! kind-parameters added to all INTEGER and REAL declaration statements, |
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52 | ! kinds are defined in new module kinds, |
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53 | ! revision history before 2012 removed, |
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54 | ! comment fields (!:) to be used for variable explanations added to |
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55 | ! all variable declaration statements |
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56 | ! |
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57 | ! 1092 2013-02-02 11:24:22Z raasch |
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58 | ! unused variables removed |
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59 | ! |
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60 | ! 1036 2012-10-22 13:43:42Z raasch |
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61 | ! code put under GPL (PALM 3.9) |
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62 | ! |
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63 | ! 841 2012-02-28 12:29:49Z maronga |
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64 | ! Excluded routine from compilation of namelist_file_check |
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65 | ! |
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66 | ! Revision 1.1 1998/01/23 09:58:21 raasch |
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67 | ! Initial revision |
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68 | ! |
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69 | ! |
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70 | ! Description: |
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71 | ! ------------ |
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72 | !> Exchange of lateral (ghost) boundaries (parallel computers) and cyclic |
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73 | !> boundary conditions, respectively, for 2D-arrays. |
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74 | !------------------------------------------------------------------------------! |
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75 | SUBROUTINE exchange_horiz_2d( ar ) |
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76 | |
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77 | |
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78 | USE control_parameters, & |
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79 | ONLY : bc_lr_cyc, bc_ns_cyc, inflow_l, inflow_n, inflow_r, inflow_s, & |
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80 | nest_bound_l, nest_bound_n, nest_bound_r, nest_bound_s, & |
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81 | outflow_l, outflow_n, outflow_r, outflow_s |
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82 | |
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83 | USE cpulog, & |
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84 | ONLY : cpu_log, log_point_s |
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85 | |
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86 | USE indices, & |
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87 | ONLY : nbgp, nxl, nxlg, nxr, nxrg, nyn, nyng, nys, nysg |
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88 | |
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89 | USE kinds |
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90 | |
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91 | USE pegrid |
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92 | |
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93 | USE pmc_interface, & |
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94 | ONLY : nesting_mode |
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95 | |
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96 | |
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97 | IMPLICIT NONE |
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98 | |
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99 | |
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100 | INTEGER(iwp) :: i !< |
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101 | |
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102 | REAL(wp) :: ar(nysg:nyng,nxlg:nxrg) !< |
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103 | |
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104 | |
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105 | CALL cpu_log( log_point_s(13), 'exchange_horiz_2d', 'start' ) |
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106 | |
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107 | #if defined( __parallel ) |
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108 | |
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109 | ! |
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110 | !-- Exchange of lateral boundary values for parallel computers |
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111 | IF ( pdims(1) == 1 ) THEN |
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112 | |
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113 | ! |
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114 | !-- One-dimensional decomposition along y, boundary values can be exchanged |
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115 | !-- within the PE memory |
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116 | ar(:,nxlg:nxl-1) = ar(:,nxr-nbgp+1:nxr) |
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117 | ar(:,nxr+1:nxrg) = ar(:,nxl:nxl+nbgp-1) |
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118 | |
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119 | ELSE |
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120 | ! |
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121 | !-- Send left boundary, receive right one |
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122 | |
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123 | CALL MPI_SENDRECV( ar(nysg,nxl), 1, type_y, pleft, 0, & |
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124 | ar(nysg,nxr+1), 1, type_y, pright, 0, & |
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125 | comm2d, status, ierr ) |
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126 | ! |
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127 | !-- Send right boundary, receive left one |
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128 | CALL MPI_SENDRECV( ar(nysg,nxr+1-nbgp), 1, type_y, pright, 1, & |
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129 | ar(nysg,nxlg), 1, type_y, pleft, 1, & |
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130 | comm2d, status, ierr ) |
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131 | |
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132 | |
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133 | ENDIF |
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134 | |
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135 | IF ( pdims(2) == 1 ) THEN |
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136 | ! |
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137 | !-- One-dimensional decomposition along x, boundary values can be exchanged |
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138 | !-- within the PE memory |
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139 | ar(nysg:nys-1,:) = ar(nyn-nbgp+1:nyn,:) |
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140 | ar(nyn+1:nyng,:) = ar(nys:nys+nbgp-1,:) |
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141 | |
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142 | ELSE |
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143 | ! |
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144 | !-- Send front boundary, receive rear one |
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145 | |
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146 | CALL MPI_SENDRECV( ar(nys,nxlg), 1, type_x, psouth, 0, & |
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147 | ar(nyn+1,nxlg), 1, type_x, pnorth, 0, & |
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148 | comm2d, status, ierr ) |
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149 | ! |
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150 | !-- Send rear boundary, receive front one |
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151 | CALL MPI_SENDRECV( ar(nyn+1-nbgp,nxlg), 1, type_x, pnorth, 1, & |
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152 | ar(nysg,nxlg), 1, type_x, psouth, 1, & |
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153 | comm2d, status, ierr ) |
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154 | |
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155 | ENDIF |
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156 | |
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157 | #else |
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158 | |
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159 | ! |
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160 | !-- Lateral boundary conditions in the non-parallel case |
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161 | IF ( bc_lr_cyc ) THEN |
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162 | ar(:,nxlg:nxl-1) = ar(:,nxr-nbgp+1:nxr) |
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163 | ar(:,nxr+1:nxrg) = ar(:,nxl:nxl+nbgp-1) |
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164 | ENDIF |
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165 | |
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166 | IF ( bc_ns_cyc ) THEN |
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167 | ar(nysg:nys-1,:) = ar(nyn-nbgp+1:nyn,:) |
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168 | ar(nyn+1:nyng,:) = ar(nys:nys+nbgp-1,:) |
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169 | ENDIF |
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170 | |
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171 | |
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172 | #endif |
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173 | |
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174 | ! |
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175 | !-- Neumann-conditions at inflow/outflow/nested boundaries |
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176 | IF ( nesting_mode /= 'vertical' ) THEN |
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177 | IF ( inflow_l .OR. outflow_l .OR. nest_bound_l ) THEN |
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178 | DO i = nbgp, 1, -1 |
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179 | ar(:,nxl-i) = ar(:,nxl) |
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180 | ENDDO |
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181 | ENDIF |
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182 | IF ( inflow_r .OR. outflow_r .OR. nest_bound_r ) THEN |
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183 | DO i = 1, nbgp |
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184 | ar(:,nxr+i) = ar(:,nxr) |
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185 | ENDDO |
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186 | ENDIF |
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187 | IF ( inflow_s .OR. outflow_s .OR. nest_bound_s ) THEN |
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188 | DO i = nbgp, 1, -1 |
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189 | ar(nys-i,:) = ar(nys,:) |
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190 | ENDDO |
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191 | ENDIF |
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192 | IF ( inflow_n .OR. outflow_n .OR. nest_bound_n ) THEN |
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193 | DO i = 1, nbgp |
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194 | ar(nyn+i,:) = ar(nyn,:) |
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195 | ENDDO |
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196 | ENDIF |
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197 | ENDIF |
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198 | |
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199 | CALL cpu_log( log_point_s(13), 'exchange_horiz_2d', 'stop' ) |
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200 | |
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201 | END SUBROUTINE exchange_horiz_2d |
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202 | |
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203 | |
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204 | |
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205 | !------------------------------------------------------------------------------! |
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206 | ! Description: |
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207 | ! ------------ |
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208 | !> Exchange of lateral (ghost) boundaries (parallel computers) and cyclic |
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209 | !> boundary conditions, respectively, for 2D integer arrays. |
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210 | !------------------------------------------------------------------------------! |
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211 | |
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212 | SUBROUTINE exchange_horiz_2d_int( ar, nys_l, nyn_l, nxl_l, nxr_l, nbgp_local ) |
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213 | |
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214 | |
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215 | USE control_parameters, & |
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216 | ONLY: bc_lr_cyc, bc_ns_cyc, grid_level, nest_bound_l, nest_bound_n, & |
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217 | nest_bound_r, nest_bound_s |
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218 | |
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219 | USE cpulog, & |
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220 | ONLY: cpu_log, log_point_s |
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221 | |
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222 | USE kinds |
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223 | |
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224 | USE pegrid |
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225 | |
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226 | IMPLICIT NONE |
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227 | |
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228 | INTEGER(iwp) :: i !< dummy index to zero-gradient conditions at in/outflow boundaries |
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229 | INTEGER(iwp) :: nxl_l !< local index bound at current grid level, left side |
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230 | INTEGER(iwp) :: nxr_l !< local index bound at current grid level, right side |
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231 | INTEGER(iwp) :: nyn_l !< local index bound at current grid level, north side |
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232 | INTEGER(iwp) :: nys_l !< local index bound at current grid level, south side |
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233 | INTEGER(iwp) :: nbgp_local !< number of ghost layers to be exchanged |
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234 | |
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235 | INTEGER(iwp), DIMENSION(nys_l-nbgp_local:nyn_l+nbgp_local, & |
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236 | nxl_l-nbgp_local:nxr_l+nbgp_local) :: ar !< treated array |
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237 | |
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238 | CALL cpu_log( log_point_s(13), 'exchange_horiz_2d', 'start' ) |
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239 | |
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240 | #if defined( __parallel ) |
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241 | |
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242 | ! |
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243 | !-- Exchange of lateral boundary values for parallel computers |
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244 | IF ( pdims(1) == 1 ) THEN |
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245 | |
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246 | ! |
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247 | !-- One-dimensional decomposition along y, boundary values can be exchanged |
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248 | !-- within the PE memory |
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249 | ar(:,nxl_l-nbgp_local:nxl_l-1) = ar(:,nxr_l-nbgp_local+1:nxr_l) |
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250 | ar(:,nxr_l+1:nxr_l+nbgp_local) = ar(:,nxl_l:nxl_l+nbgp_local-1) |
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251 | |
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252 | ELSE |
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253 | ! |
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254 | !-- Send left boundary, receive right one |
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255 | CALL MPI_SENDRECV( ar(nys_l-nbgp_local,nxl_l), 1, & |
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256 | type_y_int(grid_level), pleft, 0, & |
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257 | ar(nys_l-nbgp_local,nxr_l+1), 1, & |
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258 | type_y_int(grid_level), pright, 0, & |
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259 | comm2d, status, ierr ) |
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260 | ! |
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261 | !-- Send right boundary, receive left one |
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262 | CALL MPI_SENDRECV( ar(nys_l-nbgp_local,nxr_l+1-nbgp_local), 1, & |
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263 | type_y_int(grid_level), pright, 1, & |
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264 | ar(nys_l-nbgp_local,nxl_l-nbgp_local), 1, & |
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265 | type_y_int(grid_level), pleft, 1, & |
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266 | comm2d, status, ierr ) |
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267 | |
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268 | ENDIF |
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269 | |
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270 | IF ( pdims(2) == 1 ) THEN |
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271 | ! |
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272 | !-- One-dimensional decomposition along x, boundary values can be exchanged |
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273 | !-- within the PE memory |
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274 | ar(nys_l-nbgp_local:nys_l-1,:) = ar(nyn_l+1-nbgp_local:nyn_l,:) |
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275 | ar(nyn_l+1:nyn_l+nbgp_local,:) = ar(nys_l:nys_l-1+nbgp_local,:) |
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276 | |
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277 | |
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278 | ELSE |
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279 | ! |
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280 | !-- Send front boundary, receive rear one |
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281 | CALL MPI_SENDRECV( ar(nys_l,nxl_l-nbgp_local), 1, & |
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282 | type_x_int(grid_level), psouth, 0, & |
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283 | ar(nyn_l+1,nxl_l-nbgp_local), 1, & |
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284 | type_x_int(grid_level), pnorth, 0, & |
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285 | comm2d, status, ierr ) |
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286 | |
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287 | ! |
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288 | !-- Send rear boundary, receive front one |
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289 | CALL MPI_SENDRECV( ar(nyn_l+1-nbgp_local,nxl_l-nbgp_local), 1, & |
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290 | type_x_int(grid_level), pnorth, 1, & |
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291 | ar(nys_l-nbgp_local,nxl_l-nbgp_local), 1, & |
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292 | type_x_int(grid_level), psouth, 1, & |
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293 | comm2d, status, ierr ) |
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294 | |
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295 | ENDIF |
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296 | |
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297 | #else |
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298 | |
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299 | ! |
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300 | !-- Lateral boundary conditions in the non-parallel case |
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301 | IF ( bc_lr_cyc ) THEN |
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302 | ar(:,nxl_l-nbgp_local:nxl_l-1) = ar(:,nxr_l-nbgp_local+1:nxr_l) |
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303 | ar(:,nxr_l+1:nxr_l+nbgp_local) = ar(:,nxl_l:nxl_l+nbgp_local-1) |
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304 | ENDIF |
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305 | |
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306 | IF ( bc_ns_cyc ) THEN |
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307 | ar(nys_l-nbgp_local:nys_l-1,:) = ar(nyn_l+1-nbgp_local:nyn_l,:) |
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308 | ar(nyn_l+1:nyn_l+nbgp_local,:) = ar(nys_l:nys_l-1+nbgp_local,:) |
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309 | ENDIF |
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310 | |
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311 | #endif |
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312 | ! |
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313 | !-- Neumann-conditions at inflow/outflow/nested boundaries |
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314 | IF ( nest_bound_l ) THEN |
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315 | DO i = nbgp_local, 1, -1 |
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316 | ar(:,nxl_l-i) = ar(:,nxl_l) |
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317 | ENDDO |
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318 | ENDIF |
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319 | IF ( nest_bound_r ) THEN |
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320 | DO i = 1, nbgp_local |
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321 | ar(:,nxr_l+i) = ar(:,nxr_l) |
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322 | ENDDO |
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323 | ENDIF |
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324 | IF ( nest_bound_s ) THEN |
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325 | DO i = nbgp_local, 1, -1 |
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326 | ar(nys_l-i,:) = ar(nys_l,:) |
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327 | ENDDO |
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328 | ENDIF |
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329 | IF ( nest_bound_n ) THEN |
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330 | DO i = 1, nbgp_local |
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331 | ar(nyn_l+i,:) = ar(nyn_l,:) |
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332 | ENDDO |
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333 | ENDIF |
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334 | |
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335 | CALL cpu_log( log_point_s(13), 'exchange_horiz_2d', 'stop' ) |
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336 | |
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337 | END SUBROUTINE exchange_horiz_2d_int |
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