1 | MODULE lbcnfd |
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2 | !!====================================================================== |
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3 | !! *** MODULE lbcnfd *** |
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4 | !! Ocean : north fold boundary conditions |
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5 | !!====================================================================== |
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6 | !! History : 3.2 ! 2009-03 (R. Benshila) Original code |
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7 | !! 3.5 ! 2013-07 (I. Epicoco, S. Mocavero - CMCC) MPP optimization |
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8 | !! 4.0 ! 2017-04 (G. Madec) automatique allocation of array argument (use any 3rd dimension) |
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9 | !!---------------------------------------------------------------------- |
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10 | |
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11 | !!---------------------------------------------------------------------- |
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12 | !! lbc_nfd : generic interface for lbc_nfd_3d and lbc_nfd_2d routines |
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13 | !! lbc_nfd_3d : lateral boundary condition: North fold treatment for a 3D arrays (lbc_nfd) |
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14 | !! lbc_nfd_2d : lateral boundary condition: North fold treatment for a 2D arrays (lbc_nfd) |
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15 | !! lbc_nfd_nogather : generic interface for lbc_nfd_nogather_3d and |
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16 | !! lbc_nfd_nogather_2d routines (designed for use |
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17 | !! with ln_nnogather to avoid global width arrays |
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18 | !! mpi all gather operations) |
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19 | !!---------------------------------------------------------------------- |
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20 | USE dom_oce ! ocean space and time domain |
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21 | USE in_out_manager ! I/O manager |
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22 | |
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23 | IMPLICIT NONE |
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24 | PRIVATE |
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25 | |
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26 | INTERFACE lbc_nfd |
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27 | MODULE PROCEDURE lbc_nfd_2d , lbc_nfd_3d , lbc_nfd_4d |
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28 | MODULE PROCEDURE lbc_nfd_2d_ptr, lbc_nfd_3d_ptr, lbc_nfd_4d_ptr |
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29 | END INTERFACE |
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30 | ! |
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31 | INTERFACE lbc_nfd_nogather |
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32 | ! ! Currently only 4d array version is needed |
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33 | ! MODULE PROCEDURE lbc_nfd_nogather_2d , lbc_nfd_nogather_3d |
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34 | MODULE PROCEDURE lbc_nfd_nogather_4d |
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35 | ! MODULE PROCEDURE lbc_nfd_nogather_2d_ptr, lbc_nfd_nogather_3d_ptr |
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36 | ! MODULE PROCEDURE lbc_nfd_nogather_4d_ptr |
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37 | END INTERFACE |
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38 | |
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39 | TYPE, PUBLIC :: PTR_2D !: array of 2D pointers (also used in lib_mpp) |
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40 | REAL(wp), DIMENSION (:,:) , POINTER :: pt2d |
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41 | END TYPE PTR_2D |
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42 | TYPE, PUBLIC :: PTR_3D !: array of 3D pointers (also used in lib_mpp) |
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43 | REAL(wp), DIMENSION (:,:,:) , POINTER :: pt3d |
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44 | END TYPE PTR_3D |
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45 | TYPE, PUBLIC :: PTR_4D !: array of 4D pointers (also used in lib_mpp) |
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46 | REAL(wp), DIMENSION (:,:,:,:), POINTER :: pt4d |
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47 | END TYPE PTR_4D |
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48 | |
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49 | PUBLIC lbc_nfd ! north fold conditions |
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50 | PUBLIC lbc_nfd_nogather ! north fold conditions (no allgather case) |
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51 | |
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52 | INTEGER, PUBLIC, PARAMETER :: jpmaxngh = 3 !: |
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53 | INTEGER, PUBLIC :: nsndto, nfsloop, nfeloop !: |
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54 | INTEGER, PUBLIC, DIMENSION (jpmaxngh) :: isendto !: processes to which communicate |
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55 | |
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56 | !!---------------------------------------------------------------------- |
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57 | !! NEMO/OPA 3.3 , NEMO Consortium (2010) |
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58 | !! $Id$ |
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59 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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60 | !!---------------------------------------------------------------------- |
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61 | CONTAINS |
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62 | |
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63 | !!---------------------------------------------------------------------- |
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64 | !! *** routine lbc_nfd_(2,3,4)d *** |
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65 | !!---------------------------------------------------------------------- |
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66 | !! |
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67 | !! ** Purpose : lateral boundary condition |
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68 | !! North fold treatment without processor exchanges. |
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69 | !! |
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70 | !! ** Method : |
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71 | !! |
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72 | !! ** Action : ptab with updated values along the north fold |
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73 | !!---------------------------------------------------------------------- |
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74 | ! |
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75 | ! !== 2D array and array of 2D pointer ==! |
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76 | ! |
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77 | # define DIM_2d |
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78 | # define ROUTINE_NFD lbc_nfd_2d |
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79 | # include "lbc_nfd_generic.h90" |
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80 | # undef ROUTINE_NFD |
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81 | # define MULTI |
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82 | # define ROUTINE_NFD lbc_nfd_2d_ptr |
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83 | # include "lbc_nfd_generic.h90" |
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84 | # undef ROUTINE_NFD |
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85 | # undef MULTI |
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86 | # undef DIM_2d |
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87 | ! |
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88 | ! !== 3D array and array of 3D pointer ==! |
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89 | ! |
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90 | # define DIM_3d |
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91 | # define ROUTINE_NFD lbc_nfd_3d |
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92 | # include "lbc_nfd_generic.h90" |
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93 | # undef ROUTINE_NFD |
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94 | # define MULTI |
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95 | # define ROUTINE_NFD lbc_nfd_3d_ptr |
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96 | # include "lbc_nfd_generic.h90" |
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97 | # undef ROUTINE_NFD |
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98 | # undef MULTI |
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99 | # undef DIM_3d |
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100 | ! |
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101 | ! !== 4D array and array of 4D pointer ==! |
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102 | ! |
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103 | # define DIM_4d |
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104 | # define ROUTINE_NFD lbc_nfd_4d |
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105 | # include "lbc_nfd_generic.h90" |
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106 | # undef ROUTINE_NFD |
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107 | # define MULTI |
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108 | # define ROUTINE_NFD lbc_nfd_4d_ptr |
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109 | # include "lbc_nfd_generic.h90" |
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110 | # undef ROUTINE_NFD |
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111 | # undef MULTI |
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112 | # undef DIM_4d |
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113 | ! |
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114 | ! lbc_nfd_nogather routines |
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115 | ! |
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116 | ! !== 2D array and array of 2D pointer ==! |
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117 | ! |
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118 | !# define DIM_2d |
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119 | !# define ROUTINE_NFD lbc_nfd_nogather_2d |
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120 | !# include "lbc_nfd_nogather_generic.h90" |
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121 | !# undef ROUTINE_NFD |
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122 | !# define MULTI |
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123 | !# define ROUTINE_NFD lbc_nfd_nogather_2d_ptr |
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124 | !# include "lbc_nfd_nogather_generic.h90" |
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125 | !# undef ROUTINE_NFD |
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126 | !# undef MULTI |
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127 | !# undef DIM_2d |
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128 | ! |
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129 | ! !== 3D array and array of 3D pointer ==! |
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130 | ! |
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131 | !# define DIM_3d |
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132 | !# define ROUTINE_NFD lbc_nfd_nogather_3d |
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133 | !# include "lbc_nfd_nogather_generic.h90" |
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134 | !# undef ROUTINE_NFD |
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135 | !# define MULTI |
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136 | !# define ROUTINE_NFD lbc_nfd_nogather_3d_ptr |
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137 | !# include "lbc_nfd_nogather_generic.h90" |
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138 | !# undef ROUTINE_NFD |
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139 | !# undef MULTI |
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140 | !# undef DIM_3d |
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141 | ! |
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142 | ! !== 4D array and array of 4D pointer ==! |
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143 | ! |
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144 | # define DIM_4d |
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145 | # define ROUTINE_NFD lbc_nfd_nogather_4d |
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146 | # include "lbc_nfd_nogather_generic.h90" |
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147 | # undef ROUTINE_NFD |
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148 | !# define MULTI |
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149 | !# define ROUTINE_NFD lbc_nfd_nogather_4d_ptr |
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150 | !# include "lbc_nfd_nogather_generic.h90" |
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151 | !# undef ROUTINE_NFD |
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152 | !# undef MULTI |
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153 | # undef DIM_4d |
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154 | |
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155 | !!---------------------------------------------------------------------- |
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156 | |
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157 | |
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158 | !!gm CAUTION HERE optional pr2dj not implemented in generic case |
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159 | !!gm furthermore, in the _org routine it is OK only for T-point pivot !! |
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160 | |
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161 | |
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162 | SUBROUTINE lbc_nfd_2d_org( pt2d, cd_nat, psgn, pr2dj ) |
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163 | !!---------------------------------------------------------------------- |
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164 | !! *** routine lbc_nfd_2d *** |
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165 | !! |
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166 | !! ** Purpose : 2D lateral boundary condition : North fold treatment |
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167 | !! without processor exchanges. |
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168 | !! |
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169 | !! ** Method : |
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170 | !! |
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171 | !! ** Action : pt2d with updated values along the north fold |
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172 | !!---------------------------------------------------------------------- |
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173 | REAL(wp), DIMENSION(:,:), INTENT(inout) :: pt2d ! 2D array on which the boundary condition is applied |
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174 | CHARACTER(len=1) , INTENT(in ) :: cd_nat ! nature of pt2d grid-point |
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175 | REAL(wp) , INTENT(in ) :: psgn ! sign used across north fold |
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176 | INTEGER , OPTIONAL , INTENT(in ) :: pr2dj ! number of additional halos |
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177 | ! |
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178 | INTEGER :: ji, jl, ipr2dj |
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179 | INTEGER :: ijt, iju, ijpj, ijpjm1 |
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180 | !!---------------------------------------------------------------------- |
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181 | |
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182 | SELECT CASE ( jpni ) |
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183 | CASE ( 1 ) ; ijpj = nlcj ! 1 proc only along the i-direction |
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184 | CASE DEFAULT ; ijpj = 4 ! several proc along the i-direction |
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185 | END SELECT |
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186 | ! |
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187 | IF( PRESENT(pr2dj) ) THEN ! use of additional halos |
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188 | ipr2dj = pr2dj |
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189 | IF( jpni > 1 ) ijpj = ijpj + ipr2dj |
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190 | ELSE |
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191 | ipr2dj = 0 |
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192 | ENDIF |
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193 | ! |
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194 | ijpjm1 = ijpj-1 |
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195 | |
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196 | |
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197 | SELECT CASE ( npolj ) |
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198 | ! |
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199 | CASE ( 3, 4 ) ! * North fold T-point pivot |
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200 | ! |
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201 | SELECT CASE ( cd_nat ) |
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202 | ! |
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203 | CASE ( 'T' , 'W' ) ! T- , W-points |
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204 | DO jl = 0, ipr2dj |
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205 | DO ji = 2, jpiglo |
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206 | ijt=jpiglo-ji+2 |
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207 | pt2d(ji,ijpj+jl) = psgn * pt2d(ijt,ijpj-2-jl) |
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208 | END DO |
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209 | END DO |
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210 | pt2d(1,ijpj) = psgn * pt2d(3,ijpj-2) |
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211 | DO ji = jpiglo/2+1, jpiglo |
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212 | ijt=jpiglo-ji+2 |
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213 | pt2d(ji,ijpj-1) = psgn * pt2d(ijt,ijpj-1) |
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214 | END DO |
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215 | CASE ( 'U' ) ! U-point |
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216 | DO jl = 0, ipr2dj |
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217 | DO ji = 1, jpiglo-1 |
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218 | iju = jpiglo-ji+1 |
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219 | pt2d(ji,ijpj+jl) = psgn * pt2d(iju,ijpj-2-jl) |
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220 | END DO |
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221 | END DO |
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222 | pt2d( 1 ,ijpj ) = psgn * pt2d( 2 ,ijpj-2) |
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223 | pt2d(jpiglo,ijpj ) = psgn * pt2d(jpiglo-1,ijpj-2) |
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224 | pt2d(1 ,ijpj-1) = psgn * pt2d(jpiglo ,ijpj-1) |
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225 | DO ji = jpiglo/2, jpiglo-1 |
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226 | iju = jpiglo-ji+1 |
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227 | pt2d(ji,ijpjm1) = psgn * pt2d(iju,ijpjm1) |
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228 | END DO |
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229 | CASE ( 'V' ) ! V-point |
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230 | DO jl = -1, ipr2dj |
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231 | DO ji = 2, jpiglo |
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232 | ijt = jpiglo-ji+2 |
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233 | pt2d(ji,ijpj+jl) = psgn * pt2d(ijt,ijpj-3-jl) |
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234 | END DO |
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235 | END DO |
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236 | pt2d( 1 ,ijpj) = psgn * pt2d( 3 ,ijpj-3) |
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237 | CASE ( 'F' ) ! F-point |
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238 | DO jl = -1, ipr2dj |
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239 | DO ji = 1, jpiglo-1 |
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240 | iju = jpiglo-ji+1 |
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241 | pt2d(ji,ijpj+jl) = psgn * pt2d(iju,ijpj-3-jl) |
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242 | END DO |
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243 | END DO |
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244 | pt2d( 1 ,ijpj) = psgn * pt2d( 2 ,ijpj-3) |
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245 | pt2d(jpiglo,ijpj) = psgn * pt2d(jpiglo-1,ijpj-3) |
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246 | pt2d(jpiglo,ijpj-1) = psgn * pt2d(jpiglo-1,ijpj-2) |
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247 | pt2d( 1 ,ijpj-1) = psgn * pt2d( 2 ,ijpj-2) |
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248 | CASE ( 'I' ) ! ice U-V point (I-point) |
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249 | DO jl = 0, ipr2dj |
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250 | pt2d(2,ijpj+jl) = psgn * pt2d(3,ijpj-1+jl) |
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251 | DO ji = 3, jpiglo |
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252 | iju = jpiglo - ji + 3 |
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253 | pt2d(ji,ijpj+jl) = psgn * pt2d(iju,ijpj-1-jl) |
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254 | END DO |
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255 | END DO |
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256 | END SELECT |
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257 | ! |
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258 | CASE ( 5, 6 ) ! * North fold F-point pivot |
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259 | ! |
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260 | SELECT CASE ( cd_nat ) |
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261 | CASE ( 'T' , 'W' ) ! T-, W-point |
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262 | DO jl = 0, ipr2dj |
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263 | DO ji = 1, jpiglo |
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264 | ijt = jpiglo-ji+1 |
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265 | pt2d(ji,ijpj+jl) = psgn * pt2d(ijt,ijpj-1-jl) |
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266 | END DO |
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267 | END DO |
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268 | CASE ( 'U' ) ! U-point |
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269 | DO jl = 0, ipr2dj |
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270 | DO ji = 1, jpiglo-1 |
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271 | iju = jpiglo-ji |
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272 | pt2d(ji,ijpj+jl) = psgn * pt2d(iju,ijpj-1-jl) |
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273 | END DO |
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274 | END DO |
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275 | pt2d(jpiglo,ijpj) = psgn * pt2d(1,ijpj-1) |
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276 | CASE ( 'V' ) ! V-point |
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277 | DO jl = 0, ipr2dj |
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278 | DO ji = 1, jpiglo |
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279 | ijt = jpiglo-ji+1 |
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280 | pt2d(ji,ijpj+jl) = psgn * pt2d(ijt,ijpj-2-jl) |
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281 | END DO |
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282 | END DO |
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283 | DO ji = jpiglo/2+1, jpiglo |
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284 | ijt = jpiglo-ji+1 |
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285 | pt2d(ji,ijpjm1) = psgn * pt2d(ijt,ijpjm1) |
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286 | END DO |
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287 | CASE ( 'F' ) ! F-point |
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288 | DO jl = 0, ipr2dj |
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289 | DO ji = 1, jpiglo-1 |
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290 | iju = jpiglo-ji |
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291 | pt2d(ji,ijpj+jl) = psgn * pt2d(iju,ijpj-2-jl) |
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292 | END DO |
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293 | END DO |
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294 | pt2d(jpiglo,ijpj) = psgn * pt2d(1,ijpj-2) |
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295 | DO ji = jpiglo/2+1, jpiglo-1 |
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296 | iju = jpiglo-ji |
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297 | pt2d(ji,ijpjm1) = psgn * pt2d(iju,ijpjm1) |
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298 | END DO |
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299 | CASE ( 'I' ) ! ice U-V point (I-point) |
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300 | pt2d( 2 ,ijpj:ijpj+ipr2dj) = 0._wp |
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301 | DO jl = 0, ipr2dj |
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302 | DO ji = 2 , jpiglo-1 |
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303 | ijt = jpiglo - ji + 2 |
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304 | pt2d(ji,ijpj+jl)= 0.5 * ( pt2d(ji,ijpj-1-jl) + psgn * pt2d(ijt,ijpj-1-jl) ) |
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305 | END DO |
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306 | END DO |
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307 | END SELECT |
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308 | ! |
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309 | CASE DEFAULT ! * closed : the code probably never go through |
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310 | ! |
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311 | SELECT CASE ( cd_nat) |
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312 | CASE ( 'T' , 'U' , 'V' , 'W' ) ! T-, U-, V-, W-points |
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313 | pt2d(:, 1:1-ipr2dj ) = 0._wp |
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314 | pt2d(:,ijpj:ijpj+ipr2dj) = 0._wp |
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315 | CASE ( 'F' ) ! F-point |
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316 | pt2d(:,ijpj:ijpj+ipr2dj) = 0._wp |
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317 | CASE ( 'I' ) ! ice U-V point |
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318 | pt2d(:, 1:1-ipr2dj ) = 0._wp |
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319 | pt2d(:,ijpj:ijpj+ipr2dj) = 0._wp |
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320 | END SELECT |
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321 | ! |
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322 | END SELECT |
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323 | ! |
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324 | END SUBROUTINE lbc_nfd_2d_org |
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325 | |
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326 | !!====================================================================== |
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327 | END MODULE lbcnfd |
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