1 | !> @file exchange_horiz.f90 |
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2 | !--------------------------------------------------------------------------------------------------! |
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3 | ! This file is part of the PALM model system. |
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4 | ! |
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5 | ! PALM is free software: you can redistribute it and/or modify it under the terms of the GNU General |
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6 | ! Public License as published by the Free Software Foundation, either version 3 of the License, or |
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7 | ! (at your option) any later version. |
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8 | ! |
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9 | ! PALM is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the |
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10 | ! implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
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11 | ! Public License for more details. |
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12 | ! |
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13 | ! You should have received a copy of the GNU General Public License along with PALM. If not, see |
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14 | ! <http://www.gnu.org/licenses/>. |
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15 | ! |
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16 | ! Copyright 1997-2021 Leibniz Universitaet Hannover |
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17 | !--------------------------------------------------------------------------------------------------! |
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18 | ! |
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19 | ! Current revisions: |
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20 | ! ----------------- |
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21 | ! |
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22 | ! |
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23 | ! Former revisions: |
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24 | ! ----------------- |
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25 | ! $Id: exchange_horiz_mod.f90 4828 2021-01-05 11:21:41Z raasch $ |
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26 | ! file re-formatted to follow the PALM coding standard |
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27 | ! |
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28 | ! 4474 2020-03-26 09:32:18Z raasch |
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29 | ! bugfix for correct usage of alternative communicators in case of 1d-decompositions and in |
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30 | ! non-parallel mode |
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31 | ! |
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32 | ! 4461 2020-03-12 16:51:59Z raasch |
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33 | ! optional communicator added to exchange_horiz |
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34 | ! |
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35 | ! 4457 2020-03-11 14:20:43Z raasch |
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36 | ! routine has been modularized, file exchange_horiz_2d has been merged |
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37 | ! |
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38 | ! 4429 2020-02-27 15:24:30Z raasch |
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39 | ! bugfix: cpp-directives added for serial mode |
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40 | ! |
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41 | ! 4360 2020-01-07 11:25:50Z suehring |
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42 | ! Corrected "Former revisions" section |
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43 | ! |
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44 | ! 3761 2019-02-25 15:31:42Z raasch |
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45 | ! OpenACC directives re-formatted |
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46 | ! |
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47 | ! 3657 2019-01-07 20:14:18Z knoop |
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48 | ! OpenACC port for SPEC |
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49 | ! |
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50 | ! Revision 1.1 1997/07/24 11:13:29 raasch |
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51 | ! Initial revision |
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52 | ! |
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53 | ! |
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54 | ! Description: |
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55 | ! ------------ |
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56 | !> Exchange of ghost point layers for subdomains (in parallel mode) and setting of cyclic lateral |
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57 | !> boundary conditions for the total domain . |
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58 | !--------------------------------------------------------------------------------------------------! |
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59 | MODULE exchange_horiz_mod |
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60 | |
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61 | USE kinds |
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62 | |
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63 | USE pegrid |
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64 | |
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65 | IMPLICIT NONE |
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66 | |
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67 | PRIVATE |
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68 | PUBLIC exchange_horiz, exchange_horiz_int, exchange_horiz_2d, exchange_horiz_2d_byte, & |
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69 | exchange_horiz_2d_int |
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70 | |
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71 | INTERFACE exchange_horiz |
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72 | MODULE PROCEDURE exchange_horiz |
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73 | END INTERFACE exchange_horiz |
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74 | |
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75 | INTERFACE exchange_horiz_int |
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76 | MODULE PROCEDURE exchange_horiz_int |
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77 | END INTERFACE exchange_horiz_int |
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78 | |
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79 | INTERFACE exchange_horiz_2d |
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80 | MODULE PROCEDURE exchange_horiz_2d |
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81 | END INTERFACE exchange_horiz_2d |
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82 | |
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83 | INTERFACE exchange_horiz_2d_byte |
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84 | MODULE PROCEDURE exchange_horiz_2d_byte |
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85 | END INTERFACE exchange_horiz_2d_byte |
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86 | |
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87 | INTERFACE exchange_horiz_2d_int |
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88 | MODULE PROCEDURE exchange_horiz_2d_int |
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89 | END INTERFACE exchange_horiz_2d_int |
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90 | |
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91 | |
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92 | CONTAINS |
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93 | |
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94 | |
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95 | !--------------------------------------------------------------------------------------------------! |
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96 | ! Description: |
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97 | ! ------------ |
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98 | !> Exchange of ghost point layers for subdomains (in parallel mode) and setting of cyclic lateral |
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99 | !> boundary conditions for the total domain. |
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100 | !> This routine is for REAL 3d-arrays. |
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101 | !--------------------------------------------------------------------------------------------------! |
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102 | SUBROUTINE exchange_horiz( ar, nbgp_local, alternative_communicator) |
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103 | |
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104 | USE control_parameters, & |
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105 | ONLY: bc_lr_cyc, bc_ns_cyc |
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106 | |
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107 | #if defined( __parallel ) |
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108 | USE control_parameters, & |
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109 | ONLY: grid_level, mg_switch_to_pe0, synchronous_exchange |
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110 | #endif |
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111 | |
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112 | USE cpulog, & |
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113 | ONLY: cpu_log, log_point_s |
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114 | |
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115 | USE indices, & |
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116 | ONLY: nxl, nxr, nyn, nys, nzb, nzt |
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117 | |
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118 | |
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119 | #if defined( _OPENACC ) |
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120 | INTEGER(iwp) :: i !< |
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121 | #endif |
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122 | |
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123 | INTEGER(iwp), OPTIONAL :: alternative_communicator !< alternative MPI communicator to be used |
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124 | |
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125 | INTEGER(iwp) :: communicator !< communicator that is used as argument in MPI calls |
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126 | INTEGER(iwp) :: left_pe !< id of left pe that is used as argument in MPI calls |
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127 | INTEGER(iwp) :: nbgp_local !< number of ghost point layers |
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128 | INTEGER(iwp) :: north_pe !< id of north pe that is used as argument in MPI calls |
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129 | INTEGER(iwp) :: right_pe !< id of right pe that is used as argument in MPI calls |
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130 | INTEGER(iwp) :: south_pe !< id of south pe that is used as argument in MPI calls |
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131 | |
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132 | REAL(wp), DIMENSION(nzb:nzt+1,nys-nbgp_local:nyn+nbgp_local, & |
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133 | nxl-nbgp_local:nxr+nbgp_local) :: ar !< 3d-array for which exchange is done |
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134 | |
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135 | |
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136 | CALL cpu_log( log_point_s(2), 'exchange_horiz', 'start' ) |
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137 | |
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138 | #if defined( _OPENACC ) |
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139 | !$ACC UPDATE IF_PRESENT ASYNC(1) & |
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140 | !$ACC HOST(ar(:,:,nxr-nbgp_local+1:nxr)) & |
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141 | !$ACC HOST(ar(:,:,nxl:nxl+nbgp_local-1)) |
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142 | |
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143 | ! |
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144 | !-- Wait for first UPDATE to complete before starting the others. |
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145 | !$ACC WAIT(1) ASYNC(2) |
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146 | ! ar(:,:,nxl-nbgp_local:nxl-1) is overwritten by first part below |
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147 | ! ar(:,:,nxl:nxl+nbgp_local-1) has been transferred above |
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148 | DO i = nxl+nbgp_local, nxr-nbgp_local |
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149 | !$ACC UPDATE IF_PRESENT ASYNC(2) & |
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150 | !$ACC HOST(ar(:,nyn-nbgp_local+1:nyn,i)) & |
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151 | !$ACC HOST(ar(:,nys:nys+nbgp_local-1,i)) |
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152 | ENDDO |
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153 | ! ar(:,:,nxr-nbgp_local+1:nxr) has been transferred above |
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154 | ! ar(:,:,nxr+1:nxr+nbgp_local) is overwritten by first part below |
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155 | |
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156 | ! |
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157 | !-- Wait for first UPDATE to complete before starting MPI. |
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158 | !$ACC WAIT(1) |
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159 | #endif |
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160 | |
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161 | ! |
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162 | !-- Set the communicator to be used |
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163 | IF ( PRESENT( alternative_communicator ) ) THEN |
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164 | ! |
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165 | !-- Alternative communicator is to be used |
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166 | communicator = communicator_configurations(alternative_communicator)%mpi_communicator |
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167 | left_pe = communicator_configurations(alternative_communicator)%pleft |
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168 | right_pe = communicator_configurations(alternative_communicator)%pright |
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169 | south_pe = communicator_configurations(alternative_communicator)%psouth |
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170 | north_pe = communicator_configurations(alternative_communicator)%pnorth |
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171 | |
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172 | ELSE |
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173 | ! |
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174 | !-- Main communicator is to be used |
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175 | communicator = comm2d |
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176 | left_pe = pleft |
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177 | right_pe = pright |
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178 | south_pe = psouth |
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179 | north_pe = pnorth |
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180 | |
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181 | ENDIF |
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182 | |
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183 | #if defined( __parallel ) |
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184 | |
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185 | ! |
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186 | !-- Exchange in x-direction of lateral boundaries |
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187 | IF ( pdims(1) == 1 .OR. mg_switch_to_pe0 ) THEN |
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188 | ! |
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189 | !-- One-dimensional decomposition along y, boundary values can be exchanged within the PE memory. |
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190 | IF ( PRESENT( alternative_communicator ) ) THEN |
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191 | IF ( alternative_communicator <= 2 ) THEN |
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192 | ar(:,:,nxl-nbgp_local:nxl-1) = ar(:,:,nxr-nbgp_local+1:nxr) |
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193 | ar(:,:,nxr+1:nxr+nbgp_local) = ar(:,:,nxl:nxl+nbgp_local-1) |
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194 | ENDIF |
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195 | ELSE |
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196 | IF ( bc_lr_cyc ) THEN |
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197 | ar(:,:,nxl-nbgp_local:nxl-1) = ar(:,:,nxr-nbgp_local+1:nxr) |
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198 | ar(:,:,nxr+1:nxr+nbgp_local) = ar(:,:,nxl:nxl+nbgp_local-1) |
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199 | ENDIF |
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200 | ENDIF |
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201 | |
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202 | ELSE |
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203 | |
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204 | IF ( synchronous_exchange ) THEN |
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205 | ! |
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206 | !-- Send left boundary, receive right one (synchronous) |
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207 | CALL MPI_SENDRECV( ar(nzb,nys-nbgp_local,nxl), 1, type_yz(grid_level), left_pe, 0, & |
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208 | ar(nzb,nys-nbgp_local,nxr+1), 1, type_yz(grid_level), right_pe, 0, & |
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209 | communicator, status, ierr ) |
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210 | ! |
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211 | !-- Send right boundary, receive left one (synchronous) |
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212 | CALL MPI_SENDRECV( ar(nzb,nys-nbgp_local,nxr+1-nbgp_local), 1, & |
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213 | type_yz(grid_level), right_pe, 1, & |
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214 | ar(nzb,nys-nbgp_local,nxl-nbgp_local), 1, & |
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215 | type_yz(grid_level), left_pe, 1, & |
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216 | communicator, status, ierr ) |
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217 | |
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218 | ELSE |
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219 | |
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220 | ! |
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221 | !-- Asynchroneous exchange |
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222 | IF ( send_receive == 'lr' .OR. send_receive == 'al' ) THEN |
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223 | |
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224 | req(1:4) = 0 |
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225 | req_count = 0 |
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226 | ! |
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227 | !-- Send left boundary, receive right one (asynchronous) |
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228 | CALL MPI_ISEND( ar(nzb,nys-nbgp_local,nxl), 1, type_yz(grid_level), left_pe, & |
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229 | req_count, communicator, req(req_count+1), ierr ) |
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230 | CALL MPI_IRECV( ar(nzb,nys-nbgp_local,nxr+1), 1, type_yz(grid_level), right_pe, & |
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231 | req_count, communicator, req(req_count+2), ierr ) |
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232 | ! |
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233 | !-- Send right boundary, receive left one (asynchronous) |
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234 | CALL MPI_ISEND( ar(nzb,nys-nbgp_local,nxr+1-nbgp_local), 1, type_yz(grid_level), & |
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235 | right_pe, req_count+1, communicator, req(req_count+3), ierr ) |
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236 | CALL MPI_IRECV( ar(nzb,nys-nbgp_local,nxl-nbgp_local), 1, type_yz(grid_level), & |
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237 | left_pe, req_count+1, communicator, req(req_count+4), ierr ) |
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238 | |
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239 | CALL MPI_WAITALL( 4, req, wait_stat, ierr ) |
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240 | |
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241 | ENDIF |
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242 | |
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243 | ENDIF |
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244 | |
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245 | ENDIF |
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246 | |
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247 | !$ACC UPDATE IF_PRESENT ASYNC(1) & |
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248 | !$ACC DEVICE(ar(:,:,nxl-nbgp_local:nxl-1)) & |
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249 | !$ACC DEVICE(ar(:,:,nxr+1:nxr+nbgp_local)) |
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250 | |
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251 | ! |
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252 | !-- Wait for UPDATES above to complete before starting MPI. |
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253 | !$ACC WAIT(2) |
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254 | |
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255 | IF ( pdims(2) == 1 .OR. mg_switch_to_pe0 ) THEN |
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256 | ! |
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257 | !-- One-dimensional decomposition along x, boundary values can be exchanged within the PE memory |
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258 | IF ( PRESENT( alternative_communicator ) ) THEN |
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259 | IF ( alternative_communicator == 1 .OR. alternative_communicator == 3 ) THEN |
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260 | ar(:,nys-nbgp_local:nys-1,:) = ar(:,nyn-nbgp_local+1:nyn,:) |
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261 | ar(:,nyn+1:nyn+nbgp_local,:) = ar(:,nys:nys+nbgp_local-1,:) |
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262 | ENDIF |
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263 | ELSE |
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264 | IF ( bc_ns_cyc ) THEN |
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265 | ar(:,nys-nbgp_local:nys-1,:) = ar(:,nyn-nbgp_local+1:nyn,:) |
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266 | ar(:,nyn+1:nyn+nbgp_local,:) = ar(:,nys:nys+nbgp_local-1,:) |
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267 | ENDIF |
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268 | ENDIF |
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269 | |
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270 | ELSE |
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271 | |
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272 | IF ( synchronous_exchange ) THEN |
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273 | ! |
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274 | !-- Send front boundary, receive rear one (synchronous) |
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275 | CALL MPI_SENDRECV( ar(nzb,nys,nxl-nbgp_local), 1, type_xz(grid_level), south_pe, 0, & |
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276 | ar(nzb,nyn+1,nxl-nbgp_local), 1, type_xz(grid_level), north_pe, 0, & |
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277 | communicator, status, ierr ) |
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278 | ! |
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279 | !-- Send rear boundary, receive front one (synchronous) |
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280 | CALL MPI_SENDRECV( ar(nzb,nyn-nbgp_local+1,nxl-nbgp_local), 1, & |
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281 | type_xz(grid_level), north_pe, 1, & |
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282 | ar(nzb,nys-nbgp_local,nxl-nbgp_local), 1, & |
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283 | type_xz(grid_level), south_pe, 1, & |
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284 | communicator, status, ierr ) |
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285 | |
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286 | ELSE |
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287 | |
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288 | ! |
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289 | !-- Asynchroneous exchange |
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290 | IF ( send_receive == 'ns' .OR. send_receive == 'al' ) THEN |
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291 | |
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292 | req(1:4) = 0 |
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293 | req_count = 0 |
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294 | |
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295 | ! |
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296 | !-- Send front boundary, receive rear one (asynchronous) |
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297 | CALL MPI_ISEND( ar(nzb,nys,nxl-nbgp_local), 1, type_xz(grid_level), south_pe, & |
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298 | req_count, communicator, req(req_count+1), ierr ) |
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299 | CALL MPI_IRECV( ar(nzb,nyn+1,nxl-nbgp_local), 1, type_xz(grid_level), north_pe, & |
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300 | req_count, communicator, req(req_count+2), ierr ) |
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301 | ! |
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302 | !-- Send rear boundary, receive front one (asynchronous) |
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303 | CALL MPI_ISEND( ar(nzb,nyn-nbgp_local+1,nxl-nbgp_local), 1, type_xz(grid_level), & |
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304 | north_pe, req_count+1, communicator, req(req_count+3), ierr ) |
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305 | CALL MPI_IRECV( ar(nzb,nys-nbgp_local,nxl-nbgp_local), 1, type_xz(grid_level), & |
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306 | south_pe, req_count+1, communicator, req(req_count+4), ierr ) |
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307 | |
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308 | CALL MPI_WAITALL( 4, req, wait_stat, ierr ) |
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309 | |
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310 | ENDIF |
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311 | |
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312 | ENDIF |
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313 | |
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314 | ENDIF |
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315 | |
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316 | #else |
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317 | |
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318 | ! |
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319 | !-- Lateral boundary conditions in the non-parallel case. |
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320 | !-- Case dependent, because in GPU mode still not all arrays are on device. This workaround has to |
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321 | !-- be removed later. Also, since PGI compiler 12.5 has problems with array syntax, explicit loops |
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322 | !-- are used. |
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323 | IF ( PRESENT( alternative_communicator ) ) THEN |
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324 | IF ( alternative_communicator <= 2 ) THEN |
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325 | ar(:,:,nxl-nbgp_local:nxl-1) = ar(:,:,nxr-nbgp_local+1:nxr) |
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326 | ar(:,:,nxr+1:nxr+nbgp_local) = ar(:,:,nxl:nxl+nbgp_local-1) |
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327 | ENDIF |
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328 | ELSE |
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329 | IF ( bc_lr_cyc ) THEN |
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330 | ar(:,:,nxl-nbgp_local:nxl-1) = ar(:,:,nxr-nbgp_local+1:nxr) |
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331 | ar(:,:,nxr+1:nxr+nbgp_local) = ar(:,:,nxl:nxl+nbgp_local-1) |
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332 | ENDIF |
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333 | ENDIF |
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334 | |
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335 | !$ACC UPDATE IF_PRESENT ASYNC(1) & |
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336 | !$ACC DEVICE(ar(:,:,nxl-nbgp_local:nxl-1)) & |
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337 | !$ACC DEVICE(ar(:,:,nxr+1:nxr+nbgp_local)) |
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338 | |
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339 | ! |
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340 | !-- Wait for UPDATES above to complete before starting MPI. |
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341 | !$ACC WAIT(2) |
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342 | |
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343 | IF ( PRESENT( alternative_communicator ) ) THEN |
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344 | IF ( alternative_communicator == 1 .OR. alternative_communicator == 3 ) THEN |
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345 | ar(:,nys-nbgp_local:nys-1,:) = ar(:,nyn-nbgp_local+1:nyn,:) |
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346 | ar(:,nyn+1:nyn+nbgp_local,:) = ar(:,nys:nys+nbgp_local-1,:) |
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347 | ENDIF |
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348 | ELSE |
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349 | IF ( bc_ns_cyc ) THEN |
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350 | ar(:,nys-nbgp_local:nys-1,:) = ar(:,nyn-nbgp_local+1:nyn,:) |
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351 | ar(:,nyn+1:nyn+nbgp_local,:) = ar(:,nys:nys+nbgp_local-1,:) |
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352 | ENDIF |
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353 | ENDIF |
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354 | |
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355 | #endif |
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356 | |
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357 | #if defined( _OPENACC ) |
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358 | DO i = nxl-nbgp_local, nxr+nbgp_local |
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359 | !$ACC UPDATE IF_PRESENT ASYNC(2) & |
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360 | !$ACC DEVICE(ar(:,nys-nbgp_local:nys-1,i)) & |
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361 | !$ACC DEVICE(ar(:,nyn+1:nyn+nbgp_local,i)) |
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362 | ENDDO |
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363 | |
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364 | ! |
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365 | !-- Wait for all UPDATEs to finish. |
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366 | !$ACC WAIT |
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367 | #endif |
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368 | |
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369 | CALL cpu_log( log_point_s(2), 'exchange_horiz', 'stop' ) |
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370 | |
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371 | END SUBROUTINE exchange_horiz |
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372 | |
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373 | |
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374 | !--------------------------------------------------------------------------------------------------! |
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375 | ! Description: |
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376 | ! ------------ |
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377 | !> @todo Missing subroutine description. |
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378 | !--------------------------------------------------------------------------------------------------! |
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379 | SUBROUTINE exchange_horiz_int( ar, nys_l, nyn_l, nxl_l, nxr_l, nzt_l, nbgp_local ) |
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380 | |
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381 | |
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382 | USE control_parameters, & |
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383 | ONLY: bc_lr_cyc, bc_ns_cyc |
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384 | |
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385 | #if defined( __parallel ) |
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386 | USE control_parameters, & |
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387 | ONLY: grid_level |
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388 | #endif |
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389 | |
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390 | USE indices, & |
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391 | ONLY: nzb |
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392 | |
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393 | INTEGER(iwp) :: nbgp_local !< number of ghost points |
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394 | INTEGER(iwp) :: nxl_l !< local index bound at current grid level, left side |
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395 | INTEGER(iwp) :: nxr_l !< local index bound at current grid level, right side |
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396 | INTEGER(iwp) :: nyn_l !< local index bound at current grid level, north side |
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397 | INTEGER(iwp) :: nys_l !< local index bound at current grid level, south side |
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398 | INTEGER(iwp) :: nzt_l !< local index bound at current grid level, top |
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399 | |
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400 | INTEGER(iwp), DIMENSION(nzb:nzt_l+1,nys_l-nbgp_local:nyn_l+nbgp_local, & |
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401 | nxl_l-nbgp_local:nxr_l+nbgp_local) :: ar !< treated array |
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402 | |
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403 | |
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404 | #if defined( __parallel ) |
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405 | IF ( pdims(1) == 1 ) THEN |
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406 | ! |
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407 | !-- One-dimensional decomposition along y, boundary values can be exchanged within the PE memory |
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408 | IF ( bc_lr_cyc ) THEN |
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409 | ar(:,:,nxl_l-nbgp_local:nxl_l-1) = ar(:,:,nxr_l-nbgp_local+1:nxr_l) |
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410 | ar(:,:,nxr_l+1:nxr_l+nbgp_local) = ar(:,:,nxl_l:nxl_l+nbgp_local-1) |
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411 | ENDIF |
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412 | ELSE |
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413 | ! |
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414 | !-- Send left boundary, receive right one (synchronous) |
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415 | CALL MPI_SENDRECV( ar(nzb,nys_l-nbgp_local,nxl_l), 1, type_yz_int(grid_level), pleft, 0, & |
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416 | ar(nzb,nys_l-nbgp_local,nxr_l+1), 1, type_yz_int(grid_level), pright, 0, & |
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417 | comm2d, status, ierr ) |
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418 | ! |
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419 | !-- Send right boundary, receive left one (synchronous) |
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420 | CALL MPI_SENDRECV( ar(nzb,nys_l-nbgp_local,nxr_l+1-nbgp_local), 1, type_yz_int(grid_level), & |
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421 | pright, 1, & |
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422 | ar(nzb,nys_l-nbgp_local,nxl_l-nbgp_local), 1, type_yz_int(grid_level), & |
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423 | pleft, 1, & |
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424 | comm2d, status, ierr ) |
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425 | ENDIF |
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426 | |
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427 | |
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428 | IF ( pdims(2) == 1 ) THEN |
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429 | ! |
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430 | !-- One-dimensional decomposition along x, boundary values can be exchanged within the PE memory |
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431 | IF ( bc_ns_cyc ) THEN |
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432 | ar(:,nys_l-nbgp_local:nys_l-1,:) = ar(:,nyn_l-nbgp_local+1:nyn_l,:) |
---|
433 | ar(:,nyn_l+1:nyn_l+nbgp_local,:) = ar(:,nys_l:nys_l+nbgp_local-1,:) |
---|
434 | ENDIF |
---|
435 | |
---|
436 | ELSE |
---|
437 | |
---|
438 | ! |
---|
439 | !-- Send front boundary, receive rear one (synchronous) |
---|
440 | CALL MPI_SENDRECV( ar(nzb,nys_l,nxl_l-nbgp_local), 1, type_xz_int(grid_level), psouth, 0, & |
---|
441 | ar(nzb,nyn_l+1,nxl_l-nbgp_local), 1, type_xz_int(grid_level), pnorth, 0, & |
---|
442 | comm2d, status, ierr ) |
---|
443 | ! |
---|
444 | !-- Send rear boundary, receive front one (synchronous) |
---|
445 | CALL MPI_SENDRECV( ar(nzb,nyn_l-nbgp_local+1,nxl_l-nbgp_local), 1, & |
---|
446 | type_xz_int(grid_level), pnorth, 1, & |
---|
447 | ar(nzb,nys_l-nbgp_local,nxl_l-nbgp_local), 1, & |
---|
448 | type_xz_int(grid_level), psouth, 1, & |
---|
449 | comm2d, status, ierr ) |
---|
450 | |
---|
451 | ENDIF |
---|
452 | |
---|
453 | #else |
---|
454 | |
---|
455 | IF ( bc_lr_cyc ) THEN |
---|
456 | ar(:,:,nxl_l-nbgp_local:nxl_l-1) = ar(:,:,nxr_l-nbgp_local+1:nxr_l) |
---|
457 | ar(:,:,nxr_l+1:nxr_l+nbgp_local) = ar(:,:,nxl_l:nxl_l+nbgp_local-1) |
---|
458 | ENDIF |
---|
459 | |
---|
460 | IF ( bc_ns_cyc ) THEN |
---|
461 | ar(:,nys_l-nbgp_local:nys_l-1,:) = ar(:,nyn_l-nbgp_local+1:nyn_l,:) |
---|
462 | ar(:,nyn_l+1:nyn_l+nbgp_local,:) = ar(:,nys_l:nys_l+nbgp_local-1,:) |
---|
463 | ENDIF |
---|
464 | |
---|
465 | #endif |
---|
466 | |
---|
467 | END SUBROUTINE exchange_horiz_int |
---|
468 | |
---|
469 | ! Description: |
---|
470 | ! ------------ |
---|
471 | !> Exchange of lateral (ghost) boundaries (parallel computers) and cyclic boundary conditions, |
---|
472 | !> respectively, for 2D-arrays. |
---|
473 | !--------------------------------------------------------------------------------------------------! |
---|
474 | SUBROUTINE exchange_horiz_2d( ar ) |
---|
475 | |
---|
476 | USE control_parameters, & |
---|
477 | ONLY : bc_dirichlet_l, bc_dirichlet_n, bc_dirichlet_r, bc_dirichlet_s, & |
---|
478 | bc_radiation_l, bc_radiation_n, bc_radiation_r, bc_radiation_s |
---|
479 | |
---|
480 | USE cpulog, & |
---|
481 | ONLY : cpu_log, log_point_s |
---|
482 | |
---|
483 | USE indices, & |
---|
484 | ONLY : nbgp, nxl, nxlg, nxr, nxrg, nyn, nyng, nys, nysg |
---|
485 | |
---|
486 | #if ! defined( __parallel ) |
---|
487 | USE control_parameters, & |
---|
488 | ONLY: bc_lr_cyc, bc_ns_cyc |
---|
489 | #endif |
---|
490 | |
---|
491 | |
---|
492 | INTEGER(iwp) :: i !< |
---|
493 | |
---|
494 | REAL(wp) :: ar(nysg:nyng,nxlg:nxrg) !< |
---|
495 | |
---|
496 | |
---|
497 | CALL cpu_log( log_point_s(13), 'exchange_horiz_2d', 'start' ) |
---|
498 | |
---|
499 | #if defined( __parallel ) |
---|
500 | |
---|
501 | ! |
---|
502 | !-- Exchange of lateral boundary values for parallel computers |
---|
503 | IF ( pdims(1) == 1 ) THEN |
---|
504 | |
---|
505 | ! |
---|
506 | !-- One-dimensional decomposition along y, boundary values can be exchanged within the PE memory |
---|
507 | ar(:,nxlg:nxl-1) = ar(:,nxr-nbgp+1:nxr) |
---|
508 | ar(:,nxr+1:nxrg) = ar(:,nxl:nxl+nbgp-1) |
---|
509 | |
---|
510 | ELSE |
---|
511 | ! |
---|
512 | !-- Send left boundary, receive right one |
---|
513 | |
---|
514 | CALL MPI_SENDRECV( ar(nysg,nxl), 1, type_y, pleft, 0, & |
---|
515 | ar(nysg,nxr+1), 1, type_y, pright, 0, & |
---|
516 | comm2d, status, ierr ) |
---|
517 | ! |
---|
518 | !-- Send right boundary, receive left one |
---|
519 | CALL MPI_SENDRECV( ar(nysg,nxr+1-nbgp), 1, type_y, pright, 1, & |
---|
520 | ar(nysg,nxlg), 1, type_y, pleft, 1, & |
---|
521 | comm2d, status, ierr ) |
---|
522 | |
---|
523 | |
---|
524 | ENDIF |
---|
525 | |
---|
526 | IF ( pdims(2) == 1 ) THEN |
---|
527 | ! |
---|
528 | !-- One-dimensional decomposition along x, boundary values can be exchanged within the PE memory |
---|
529 | ar(nysg:nys-1,:) = ar(nyn-nbgp+1:nyn,:) |
---|
530 | ar(nyn+1:nyng,:) = ar(nys:nys+nbgp-1,:) |
---|
531 | |
---|
532 | ELSE |
---|
533 | ! |
---|
534 | !-- Send front boundary, receive rear one |
---|
535 | |
---|
536 | CALL MPI_SENDRECV( ar(nys,nxlg), 1, type_x, psouth, 0, & |
---|
537 | ar(nyn+1,nxlg), 1, type_x, pnorth, 0, & |
---|
538 | comm2d, status, ierr ) |
---|
539 | ! |
---|
540 | !-- Send rear boundary, receive front one |
---|
541 | CALL MPI_SENDRECV( ar(nyn+1-nbgp,nxlg), 1, type_x, pnorth, 1, & |
---|
542 | ar(nysg,nxlg), 1, type_x, psouth, 1, & |
---|
543 | comm2d, status, ierr ) |
---|
544 | |
---|
545 | ENDIF |
---|
546 | |
---|
547 | #else |
---|
548 | |
---|
549 | ! |
---|
550 | !-- Lateral boundary conditions in the non-parallel case |
---|
551 | IF ( bc_lr_cyc ) THEN |
---|
552 | ar(:,nxlg:nxl-1) = ar(:,nxr-nbgp+1:nxr) |
---|
553 | ar(:,nxr+1:nxrg) = ar(:,nxl:nxl+nbgp-1) |
---|
554 | ENDIF |
---|
555 | |
---|
556 | IF ( bc_ns_cyc ) THEN |
---|
557 | ar(nysg:nys-1,:) = ar(nyn-nbgp+1:nyn,:) |
---|
558 | ar(nyn+1:nyng,:) = ar(nys:nys+nbgp-1,:) |
---|
559 | ENDIF |
---|
560 | |
---|
561 | #endif |
---|
562 | |
---|
563 | ! |
---|
564 | !-- Neumann-conditions at inflow/outflow/nested boundaries |
---|
565 | IF ( bc_dirichlet_l .OR. bc_radiation_l ) THEN |
---|
566 | DO i = nbgp, 1, -1 |
---|
567 | ar(:,nxl-i) = ar(:,nxl) |
---|
568 | ENDDO |
---|
569 | ENDIF |
---|
570 | IF ( bc_dirichlet_r .OR. bc_radiation_r ) THEN |
---|
571 | DO i = 1, nbgp |
---|
572 | ar(:,nxr+i) = ar(:,nxr) |
---|
573 | ENDDO |
---|
574 | ENDIF |
---|
575 | IF ( bc_dirichlet_s .OR. bc_radiation_s ) THEN |
---|
576 | DO i = nbgp, 1, -1 |
---|
577 | ar(nys-i,:) = ar(nys,:) |
---|
578 | ENDDO |
---|
579 | ENDIF |
---|
580 | IF ( bc_dirichlet_n .OR. bc_radiation_n ) THEN |
---|
581 | DO i = 1, nbgp |
---|
582 | ar(nyn+i,:) = ar(nyn,:) |
---|
583 | ENDDO |
---|
584 | ENDIF |
---|
585 | |
---|
586 | CALL cpu_log( log_point_s(13), 'exchange_horiz_2d', 'stop' ) |
---|
587 | |
---|
588 | END SUBROUTINE exchange_horiz_2d |
---|
589 | |
---|
590 | |
---|
591 | !--------------------------------------------------------------------------------------------------! |
---|
592 | ! Description: |
---|
593 | ! ------------ |
---|
594 | !> Exchange of lateral (ghost) boundaries (parallel computers) and cyclic boundary conditions, |
---|
595 | !> respectively, for 2D 8-bit integer arrays. |
---|
596 | !--------------------------------------------------------------------------------------------------! |
---|
597 | SUBROUTINE exchange_horiz_2d_byte( ar, nys_l, nyn_l, nxl_l, nxr_l, nbgp_local ) |
---|
598 | |
---|
599 | |
---|
600 | USE control_parameters, & |
---|
601 | ONLY: bc_dirichlet_l, bc_dirichlet_n, bc_dirichlet_r, bc_dirichlet_s, & |
---|
602 | bc_radiation_l, bc_radiation_n, bc_radiation_r, bc_radiation_s |
---|
603 | |
---|
604 | USE cpulog, & |
---|
605 | ONLY: cpu_log, log_point_s |
---|
606 | |
---|
607 | #if ! defined( __parallel ) |
---|
608 | USE control_parameters, & |
---|
609 | ONLY: bc_lr_cyc, bc_ns_cyc |
---|
610 | #endif |
---|
611 | |
---|
612 | INTEGER(iwp) :: nbgp_local !< number of ghost layers to be exchanged |
---|
613 | INTEGER(iwp) :: i !< dummy index to zero-gradient conditions at in/outflow boundaries |
---|
614 | INTEGER(iwp) :: nxl_l !< local index bound at current grid level, left side |
---|
615 | INTEGER(iwp) :: nxr_l !< local index bound at current grid level, right side |
---|
616 | INTEGER(iwp) :: nyn_l !< local index bound at current grid level, north side |
---|
617 | INTEGER(iwp) :: nys_l !< local index bound at current grid level, south side |
---|
618 | |
---|
619 | INTEGER(KIND=1), DIMENSION(nys_l-nbgp_local:nyn_l+nbgp_local, & |
---|
620 | nxl_l-nbgp_local:nxr_l+nbgp_local) :: ar !< treated array |
---|
621 | |
---|
622 | CALL cpu_log( log_point_s(13), 'exchange_horiz_2d', 'start' ) |
---|
623 | |
---|
624 | #if defined( __parallel ) |
---|
625 | |
---|
626 | ! |
---|
627 | !-- Exchange of lateral boundary values for parallel computers |
---|
628 | IF ( pdims(1) == 1 ) THEN |
---|
629 | |
---|
630 | ! |
---|
631 | !-- One-dimensional decomposition along y, boundary values can be exchanged within the PE memory |
---|
632 | ar(:,nxl_l-nbgp_local:nxl_l-1) = ar(:,nxr_l-nbgp_local+1:nxr_l) |
---|
633 | ar(:,nxr_l+1:nxr_l+nbgp_local) = ar(:,nxl_l:nxl_l+nbgp_local-1) |
---|
634 | |
---|
635 | ELSE |
---|
636 | ! |
---|
637 | !-- Send left boundary, receive right one |
---|
638 | CALL MPI_SENDRECV( ar(nys_l-nbgp_local,nxl_l), 1, & |
---|
639 | type_y_byte, pleft, 0, & |
---|
640 | ar(nys_l-nbgp_local,nxr_l+1), 1, & |
---|
641 | type_y_byte, pright, 0, & |
---|
642 | comm2d, status, ierr ) |
---|
643 | ! |
---|
644 | !-- Send right boundary, receive left one |
---|
645 | CALL MPI_SENDRECV( ar(nys_l-nbgp_local,nxr_l+1-nbgp_local), 1, & |
---|
646 | type_y_byte, pright, 1, & |
---|
647 | ar(nys_l-nbgp_local,nxl_l-nbgp_local), 1, & |
---|
648 | type_y_byte, pleft, 1, & |
---|
649 | comm2d, status, ierr ) |
---|
650 | |
---|
651 | ENDIF |
---|
652 | |
---|
653 | IF ( pdims(2) == 1 ) THEN |
---|
654 | ! |
---|
655 | !-- One-dimensional decomposition along x, boundary values can be exchanged within the PE memory |
---|
656 | ar(nys_l-nbgp_local:nys_l-1,:) = ar(nyn_l+1-nbgp_local:nyn_l,:) |
---|
657 | ar(nyn_l+1:nyn_l+nbgp_local,:) = ar(nys_l:nys_l-1+nbgp_local,:) |
---|
658 | |
---|
659 | |
---|
660 | ELSE |
---|
661 | ! |
---|
662 | !-- Send front boundary, receive rear one |
---|
663 | CALL MPI_SENDRECV( ar(nys_l,nxl_l-nbgp_local), 1, & |
---|
664 | type_x_byte, psouth, 0, & |
---|
665 | ar(nyn_l+1,nxl_l-nbgp_local), 1, & |
---|
666 | type_x_byte, pnorth, 0, & |
---|
667 | comm2d, status, ierr ) |
---|
668 | |
---|
669 | ! |
---|
670 | !-- Send rear boundary, receive front one |
---|
671 | CALL MPI_SENDRECV( ar(nyn_l+1-nbgp_local,nxl_l-nbgp_local), 1, & |
---|
672 | type_x_byte, pnorth, 1, & |
---|
673 | ar(nys_l-nbgp_local,nxl_l-nbgp_local), 1, & |
---|
674 | type_x_byte, psouth, 1, & |
---|
675 | comm2d, status, ierr ) |
---|
676 | |
---|
677 | ENDIF |
---|
678 | |
---|
679 | #else |
---|
680 | |
---|
681 | ! |
---|
682 | !-- Lateral boundary conditions in the non-parallel case |
---|
683 | IF ( bc_lr_cyc ) THEN |
---|
684 | ar(:,nxl_l-nbgp_local:nxl_l-1) = ar(:,nxr_l-nbgp_local+1:nxr_l) |
---|
685 | ar(:,nxr_l+1:nxr_l+nbgp_local) = ar(:,nxl_l:nxl_l+nbgp_local-1) |
---|
686 | ENDIF |
---|
687 | |
---|
688 | IF ( bc_ns_cyc ) THEN |
---|
689 | ar(nys_l-nbgp_local:nys_l-1,:) = ar(nyn_l+1-nbgp_local:nyn_l,:) |
---|
690 | ar(nyn_l+1:nyn_l+nbgp_local,:) = ar(nys_l:nys_l-1+nbgp_local,:) |
---|
691 | ENDIF |
---|
692 | |
---|
693 | #endif |
---|
694 | ! |
---|
695 | !-- Neumann-conditions at inflow/outflow/nested boundaries |
---|
696 | IF ( bc_dirichlet_l .OR. bc_radiation_l ) THEN |
---|
697 | DO i = nbgp_local, 1, -1 |
---|
698 | ar(:,nxl_l-i) = ar(:,nxl_l) |
---|
699 | ENDDO |
---|
700 | ENDIF |
---|
701 | IF ( bc_dirichlet_r .OR. bc_radiation_r ) THEN |
---|
702 | DO i = 1, nbgp_local |
---|
703 | ar(:,nxr_l+i) = ar(:,nxr_l) |
---|
704 | ENDDO |
---|
705 | ENDIF |
---|
706 | IF ( bc_dirichlet_s .OR. bc_radiation_s ) THEN |
---|
707 | DO i = nbgp_local, 1, -1 |
---|
708 | ar(nys_l-i,:) = ar(nys_l,:) |
---|
709 | ENDDO |
---|
710 | ENDIF |
---|
711 | IF ( bc_dirichlet_n .OR. bc_radiation_n ) THEN |
---|
712 | DO i = 1, nbgp_local |
---|
713 | ar(nyn_l+i,:) = ar(nyn_l,:) |
---|
714 | ENDDO |
---|
715 | ENDIF |
---|
716 | |
---|
717 | CALL cpu_log( log_point_s(13), 'exchange_horiz_2d', 'stop' ) |
---|
718 | |
---|
719 | END SUBROUTINE exchange_horiz_2d_byte |
---|
720 | |
---|
721 | |
---|
722 | !--------------------------------------------------------------------------------------------------! |
---|
723 | ! Description: |
---|
724 | ! ------------ |
---|
725 | !> Exchange of lateral (ghost) boundaries (parallel computers) and cyclic boundary conditions, |
---|
726 | !> respectively, for 2D 32-bit integer arrays. |
---|
727 | !--------------------------------------------------------------------------------------------------! |
---|
728 | SUBROUTINE exchange_horiz_2d_int( ar, nys_l, nyn_l, nxl_l, nxr_l, nbgp_local ) |
---|
729 | |
---|
730 | |
---|
731 | USE control_parameters, & |
---|
732 | ONLY: bc_dirichlet_l, bc_dirichlet_n, bc_dirichlet_r, bc_dirichlet_s, & |
---|
733 | bc_radiation_l, bc_radiation_n, bc_radiation_r, bc_radiation_s |
---|
734 | |
---|
735 | #if defined( __parallel ) |
---|
736 | USE control_parameters, & |
---|
737 | ONLY: grid_level |
---|
738 | #endif |
---|
739 | |
---|
740 | USE cpulog, & |
---|
741 | ONLY: cpu_log, log_point_s |
---|
742 | |
---|
743 | #if ! defined( __parallel ) |
---|
744 | USE control_parameters, & |
---|
745 | ONLY: bc_lr_cyc, bc_ns_cyc |
---|
746 | #endif |
---|
747 | |
---|
748 | INTEGER(iwp) :: nbgp_local !< number of ghost layers to be exchanged |
---|
749 | INTEGER(iwp) :: i !< dummy index to zero-gradient conditions at in/outflow boundaries |
---|
750 | INTEGER(iwp) :: nxl_l !< local index bound at current grid level, left side |
---|
751 | INTEGER(iwp) :: nxr_l !< local index bound at current grid level, right side |
---|
752 | INTEGER(iwp) :: nyn_l !< local index bound at current grid level, north side |
---|
753 | INTEGER(iwp) :: nys_l !< local index bound at current grid level, south side |
---|
754 | |
---|
755 | INTEGER(iwp), DIMENSION(nys_l-nbgp_local:nyn_l+nbgp_local, & |
---|
756 | nxl_l-nbgp_local:nxr_l+nbgp_local) :: ar !< treated array |
---|
757 | |
---|
758 | CALL cpu_log( log_point_s(13), 'exchange_horiz_2d', 'start' ) |
---|
759 | |
---|
760 | #if defined( __parallel ) |
---|
761 | |
---|
762 | ! |
---|
763 | !-- Exchange of lateral boundary values for parallel computers |
---|
764 | IF ( pdims(1) == 1 ) THEN |
---|
765 | |
---|
766 | ! |
---|
767 | !-- One-dimensional decomposition along y, boundary values can be exchanged within the PE memory |
---|
768 | ar(:,nxl_l-nbgp_local:nxl_l-1) = ar(:,nxr_l-nbgp_local+1:nxr_l) |
---|
769 | ar(:,nxr_l+1:nxr_l+nbgp_local) = ar(:,nxl_l:nxl_l+nbgp_local-1) |
---|
770 | |
---|
771 | ELSE |
---|
772 | ! |
---|
773 | !-- Send left boundary, receive right one |
---|
774 | CALL MPI_SENDRECV( ar(nys_l-nbgp_local,nxl_l), 1, & |
---|
775 | type_y_int(grid_level), pleft, 0, & |
---|
776 | ar(nys_l-nbgp_local,nxr_l+1), 1, & |
---|
777 | type_y_int(grid_level), pright, 0, & |
---|
778 | comm2d, status, ierr ) |
---|
779 | ! |
---|
780 | !-- Send right boundary, receive left one |
---|
781 | CALL MPI_SENDRECV( ar(nys_l-nbgp_local,nxr_l+1-nbgp_local), 1, & |
---|
782 | type_y_int(grid_level), pright, 1, & |
---|
783 | ar(nys_l-nbgp_local,nxl_l-nbgp_local), 1, & |
---|
784 | type_y_int(grid_level), pleft, 1, & |
---|
785 | comm2d, status, ierr ) |
---|
786 | |
---|
787 | ENDIF |
---|
788 | |
---|
789 | IF ( pdims(2) == 1 ) THEN |
---|
790 | ! |
---|
791 | !-- One-dimensional decomposition along x, boundary values can be exchanged within the PE memory |
---|
792 | ar(nys_l-nbgp_local:nys_l-1,:) = ar(nyn_l+1-nbgp_local:nyn_l,:) |
---|
793 | ar(nyn_l+1:nyn_l+nbgp_local,:) = ar(nys_l:nys_l-1+nbgp_local,:) |
---|
794 | |
---|
795 | |
---|
796 | ELSE |
---|
797 | ! |
---|
798 | !-- Send front boundary, receive rear one |
---|
799 | CALL MPI_SENDRECV( ar(nys_l,nxl_l-nbgp_local), 1, & |
---|
800 | type_x_int(grid_level), psouth, 0, & |
---|
801 | ar(nyn_l+1,nxl_l-nbgp_local), 1, & |
---|
802 | type_x_int(grid_level), pnorth, 0, & |
---|
803 | comm2d, status, ierr ) |
---|
804 | |
---|
805 | ! |
---|
806 | !-- Send rear boundary, receive front one |
---|
807 | CALL MPI_SENDRECV( ar(nyn_l+1-nbgp_local,nxl_l-nbgp_local), 1, & |
---|
808 | type_x_int(grid_level), pnorth, 1, & |
---|
809 | ar(nys_l-nbgp_local,nxl_l-nbgp_local), 1, & |
---|
810 | type_x_int(grid_level), psouth, 1, & |
---|
811 | comm2d, status, ierr ) |
---|
812 | |
---|
813 | ENDIF |
---|
814 | |
---|
815 | #else |
---|
816 | |
---|
817 | ! |
---|
818 | !-- Lateral boundary conditions in the non-parallel case |
---|
819 | IF ( bc_lr_cyc ) THEN |
---|
820 | ar(:,nxl_l-nbgp_local:nxl_l-1) = ar(:,nxr_l-nbgp_local+1:nxr_l) |
---|
821 | ar(:,nxr_l+1:nxr_l+nbgp_local) = ar(:,nxl_l:nxl_l+nbgp_local-1) |
---|
822 | ENDIF |
---|
823 | |
---|
824 | IF ( bc_ns_cyc ) THEN |
---|
825 | ar(nys_l-nbgp_local:nys_l-1,:) = ar(nyn_l+1-nbgp_local:nyn_l,:) |
---|
826 | ar(nyn_l+1:nyn_l+nbgp_local,:) = ar(nys_l:nys_l-1+nbgp_local,:) |
---|
827 | ENDIF |
---|
828 | |
---|
829 | #endif |
---|
830 | ! |
---|
831 | !-- Neumann-conditions at inflow/outflow/nested boundaries |
---|
832 | IF ( bc_dirichlet_l .OR. bc_radiation_l ) THEN |
---|
833 | DO i = nbgp_local, 1, -1 |
---|
834 | ar(:,nxl_l-i) = ar(:,nxl_l) |
---|
835 | ENDDO |
---|
836 | ENDIF |
---|
837 | IF ( bc_dirichlet_r .OR. bc_radiation_r ) THEN |
---|
838 | DO i = 1, nbgp_local |
---|
839 | ar(:,nxr_l+i) = ar(:,nxr_l) |
---|
840 | ENDDO |
---|
841 | ENDIF |
---|
842 | IF ( bc_dirichlet_s .OR. bc_radiation_s ) THEN |
---|
843 | DO i = nbgp_local, 1, -1 |
---|
844 | ar(nys_l-i,:) = ar(nys_l,:) |
---|
845 | ENDDO |
---|
846 | ENDIF |
---|
847 | IF ( bc_dirichlet_n .OR. bc_radiation_n ) THEN |
---|
848 | DO i = 1, nbgp_local |
---|
849 | ar(nyn_l+i,:) = ar(nyn_l,:) |
---|
850 | ENDDO |
---|
851 | ENDIF |
---|
852 | |
---|
853 | CALL cpu_log( log_point_s(13), 'exchange_horiz_2d', 'stop' ) |
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854 | |
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855 | END SUBROUTINE exchange_horiz_2d_int |
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856 | |
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857 | |
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858 | END MODULE exchange_horiz_mod |
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