1 | MODULE lbclnk |
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2 | !!====================================================================== |
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3 | !! *** MODULE lbclnk *** |
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4 | !! Ocean : lateral boundary conditions |
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5 | !!===================================================================== |
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6 | !! History : OPA ! 1997-06 (G. Madec) Original code |
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7 | !! NEMO 1.0 ! 2002-09 (G. Madec) F90: Free form and module |
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8 | !! 3.2 ! 2009-03 (R. Benshila) External north fold treatment |
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9 | !! 3.5 ! 2012 (S.Mocavero, I. Epicoco) Add 'lbc_bdy_lnk' |
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10 | !! and lbc_obc_lnk' routine to optimize |
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11 | !! the BDY/OBC communications |
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12 | !! 3.4 ! 2012-12 (R. Bourdalle-Badie and G. Reffray) add a C1D case |
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13 | !!---------------------------------------------------------------------- |
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14 | #if defined key_mpp_mpi |
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15 | !!---------------------------------------------------------------------- |
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16 | !! 'key_mpp_mpi' MPI massively parallel processing library |
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17 | !!---------------------------------------------------------------------- |
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18 | !! lbc_lnk : generic interface for mpp_lnk_3d and mpp_lnk_2d routines defined in lib_mpp |
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19 | !! lbc_lnk_e : generic interface for mpp_lnk_2d_e routine defined in lib_mpp |
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20 | !! lbc_bdy_lnk : generic interface for mpp_lnk_bdy_2d and mpp_lnk_bdy_3d routines defined in lib_mpp |
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21 | !!---------------------------------------------------------------------- |
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22 | USE lib_mpp ! distributed memory computing library |
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23 | |
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24 | |
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25 | INTERFACE lbc_lnk_multi |
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26 | MODULE PROCEDURE mpp_lnk_2d_9 |
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27 | END INTERFACE |
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28 | |
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29 | INTERFACE lbc_lnk |
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30 | MODULE PROCEDURE mpp_lnk_3d_gather, mpp_lnk_3d, mpp_lnk_2d |
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31 | END INTERFACE |
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32 | |
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33 | INTERFACE lbc_sum |
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34 | MODULE PROCEDURE mpp_lnk_sum_3d, mpp_lnk_sum_2d |
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35 | END INTERFACE |
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36 | |
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37 | INTERFACE lbc_bdy_lnk |
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38 | MODULE PROCEDURE mpp_lnk_bdy_2d, mpp_lnk_bdy_3d |
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39 | END INTERFACE |
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40 | |
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41 | INTERFACE lbc_lnk_e |
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42 | MODULE PROCEDURE mpp_lnk_2d_e |
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43 | END INTERFACE |
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44 | |
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45 | INTERFACE lbc_lnk_icb |
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46 | MODULE PROCEDURE mpp_lnk_2d_icb |
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47 | END INTERFACE |
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48 | |
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49 | PUBLIC lbc_lnk ! ocean lateral boundary conditions |
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50 | PUBLIC lbc_lnk_multi ! modified ocean lateral boundary conditions |
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51 | PUBLIC lbc_sum |
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52 | PUBLIC lbc_lnk_e |
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53 | PUBLIC lbc_bdy_lnk ! ocean lateral BDY boundary conditions |
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54 | PUBLIC lbc_lnk_icb |
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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 | |
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62 | #else |
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63 | !!---------------------------------------------------------------------- |
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64 | !! Default option shared memory computing |
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65 | !!---------------------------------------------------------------------- |
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66 | !! lbc_lnk : generic interface for lbc_lnk_3d and lbc_lnk_2d |
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67 | !! lbc_lnk_3d : set the lateral boundary condition on a 3D variable on ocean mesh |
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68 | !! lbc_lnk_2d : set the lateral boundary condition on a 2D variable on ocean mesh |
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69 | !! lbc_bdy_lnk : set the lateral BDY boundary condition |
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70 | !!---------------------------------------------------------------------- |
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71 | USE oce ! ocean dynamics and tracers |
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72 | USE dom_oce ! ocean space and time domain |
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73 | USE in_out_manager ! I/O manager |
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74 | USE lbcnfd ! north fold |
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75 | |
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76 | IMPLICIT NONE |
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77 | PRIVATE |
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78 | |
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79 | INTERFACE lbc_lnk |
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80 | MODULE PROCEDURE lbc_lnk_3d_gather, lbc_lnk_3d, lbc_lnk_2d |
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81 | END INTERFACE |
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82 | |
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83 | INTERFACE lbc_lnk_e |
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84 | MODULE PROCEDURE lbc_lnk_2d_e |
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85 | END INTERFACE |
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86 | |
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87 | INTERFACE lbc_bdy_lnk |
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88 | MODULE PROCEDURE lbc_bdy_lnk_2d, lbc_bdy_lnk_3d |
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89 | END INTERFACE |
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90 | |
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91 | INTERFACE lbc_lnk_icb |
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92 | MODULE PROCEDURE lbc_lnk_2d_e |
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93 | END INTERFACE |
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94 | |
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95 | PUBLIC lbc_lnk ! ocean/ice lateral boundary conditions |
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96 | PUBLIC lbc_lnk_e |
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97 | PUBLIC lbc_bdy_lnk ! ocean lateral BDY boundary conditions |
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98 | PUBLIC lbc_lnk_icb |
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99 | |
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100 | !!---------------------------------------------------------------------- |
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101 | !! NEMO/OPA 3.3 , NEMO Consortium (2010) |
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102 | !! $Id$ |
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103 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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104 | !!---------------------------------------------------------------------- |
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105 | CONTAINS |
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106 | |
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107 | # if defined key_c1d |
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108 | !!---------------------------------------------------------------------- |
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109 | !! 'key_c1d' 1D configuration |
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110 | !!---------------------------------------------------------------------- |
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111 | |
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112 | SUBROUTINE lbc_lnk_3d_gather( pt3d1, cd_type1, pt3d2, cd_type2, psgn ) |
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113 | !!--------------------------------------------------------------------- |
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114 | !! *** ROUTINE lbc_lnk_3d_gather *** |
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115 | !! |
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116 | !! ** Purpose : set lateral boundary conditions on two 3D arrays (C1D case) |
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117 | !! |
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118 | !! ** Method : call lbc_lnk_3d on pt3d1 and pt3d2 |
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119 | !!---------------------------------------------------------------------- |
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120 | CHARACTER(len=1) , INTENT(in ) :: cd_type1, cd_type2 ! nature of pt3d grid-points |
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121 | REAL(wp), DIMENSION(jpi,jpj,jpk), INTENT(inout) :: pt3d1 , pt3d2 ! 3D array on which the lbc is applied |
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122 | REAL(wp) , INTENT(in ) :: psgn ! control of the sign |
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123 | !!---------------------------------------------------------------------- |
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124 | ! |
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125 | CALL lbc_lnk_3d( pt3d1, cd_type1, psgn) |
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126 | CALL lbc_lnk_3d( pt3d2, cd_type2, psgn) |
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127 | ! |
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128 | END SUBROUTINE lbc_lnk_3d_gather |
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129 | |
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130 | |
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131 | SUBROUTINE lbc_lnk_3d( pt3d, cd_type, psgn, cd_mpp, pval ) |
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132 | !!--------------------------------------------------------------------- |
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133 | !! *** ROUTINE lbc_lnk_3d *** |
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134 | !! |
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135 | !! ** Purpose : set lateral boundary conditions on a 3D array (C1D case) |
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136 | !! |
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137 | !! ** Method : 1D case, the central water column is set everywhere |
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138 | !!---------------------------------------------------------------------- |
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139 | CHARACTER(len=1) , INTENT(in ) :: cd_type ! nature of pt3d grid-points |
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140 | REAL(wp), DIMENSION(jpi,jpj,jpk), INTENT(inout) :: pt3d ! 3D array on which the lbc is applied |
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141 | REAL(wp) , INTENT(in ) :: psgn ! control of the sign |
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142 | CHARACTER(len=3) , INTENT(in ), OPTIONAL :: cd_mpp ! MPP only (here do nothing) |
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143 | REAL(wp) , INTENT(in ), OPTIONAL :: pval ! background value (for closed boundaries) |
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144 | ! |
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145 | INTEGER :: jk ! dummy loop index |
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146 | REAL(wp) :: ztab ! local scalar |
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147 | !!---------------------------------------------------------------------- |
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148 | ! |
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149 | DO jk = 1, jpk |
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150 | ztab = pt3d(2,2,jk) |
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151 | pt3d(:,:,jk) = ztab |
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152 | END DO |
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153 | ! |
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154 | END SUBROUTINE lbc_lnk_3d |
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155 | |
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156 | |
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157 | SUBROUTINE lbc_lnk_2d( pt2d, cd_type, psgn, cd_mpp, pval ) |
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158 | !!--------------------------------------------------------------------- |
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159 | !! *** ROUTINE lbc_lnk_2d *** |
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160 | !! |
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161 | !! ** Purpose : set lateral boundary conditions on a 2D array (non mpp case) |
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162 | !! |
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163 | !! ** Method : 1D case, the central water column is set everywhere |
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164 | !!---------------------------------------------------------------------- |
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165 | CHARACTER(len=1) , INTENT(in ) :: cd_type ! nature of pt3d grid-points |
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166 | REAL(wp), DIMENSION(jpi,jpj), INTENT(inout) :: pt2d ! 2D array on which the lbc is applied |
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167 | REAL(wp) , INTENT(in ) :: psgn ! control of the sign |
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168 | CHARACTER(len=3) , INTENT(in ), OPTIONAL :: cd_mpp ! MPP only (here do nothing) |
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169 | REAL(wp) , INTENT(in ), OPTIONAL :: pval ! background value (for closed boundaries) |
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170 | ! |
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171 | REAL(wp) :: ztab ! local scalar |
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172 | !!---------------------------------------------------------------------- |
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173 | ! |
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174 | ztab = pt2d(2,2) |
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175 | pt2d(:,:) = ztab |
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176 | ! |
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177 | END SUBROUTINE lbc_lnk_2d |
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178 | |
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179 | #else |
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180 | !!---------------------------------------------------------------------- |
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181 | !! Default option 3D shared memory computing |
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182 | !!---------------------------------------------------------------------- |
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183 | |
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184 | SUBROUTINE lbc_lnk_3d_gather( pt3d1, cd_type1, pt3d2, cd_type2, psgn ) |
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185 | !!--------------------------------------------------------------------- |
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186 | !! *** ROUTINE lbc_lnk_3d_gather *** |
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187 | !! |
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188 | !! ** Purpose : set lateral boundary conditions on two 3D arrays (non mpp case) |
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189 | !! |
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190 | !! ** Method : psign = -1 : change the sign across the north fold |
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191 | !! = 1 : no change of the sign across the north fold |
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192 | !! = 0 : no change of the sign across the north fold and |
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193 | !! strict positivity preserved: use inner row/column |
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194 | !! for closed boundaries. |
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195 | !!---------------------------------------------------------------------- |
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196 | CHARACTER(len=1) , INTENT(in ) :: cd_type1, cd_type2 ! nature of pt3d grid-points |
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197 | REAL(wp), DIMENSION(jpi,jpj,jpk), INTENT(inout) :: pt3d1 , pt3d2 ! 3D array on which the lbc is applied |
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198 | REAL(wp) , INTENT(in ) :: psgn ! control of the sign |
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199 | !!---------------------------------------------------------------------- |
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200 | ! |
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201 | CALL lbc_lnk_3d( pt3d1, cd_type1, psgn) |
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202 | CALL lbc_lnk_3d( pt3d2, cd_type2, psgn) |
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203 | ! |
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204 | END SUBROUTINE lbc_lnk_3d_gather |
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205 | |
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206 | |
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207 | SUBROUTINE lbc_lnk_3d( pt3d, cd_type, psgn, cd_mpp, pval ) |
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208 | !!--------------------------------------------------------------------- |
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209 | !! *** ROUTINE lbc_lnk_3d *** |
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210 | !! |
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211 | !! ** Purpose : set lateral boundary conditions on a 3D array (non mpp case) |
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212 | !! |
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213 | !! ** Method : psign = -1 : change the sign across the north fold |
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214 | !! = 1 : no change of the sign across the north fold |
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215 | !! = 0 : no change of the sign across the north fold and |
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216 | !! strict positivity preserved: use inner row/column |
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217 | !! for closed boundaries. |
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218 | !!---------------------------------------------------------------------- |
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219 | CHARACTER(len=1) , INTENT(in ) :: cd_type ! nature of pt3d grid-points |
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220 | REAL(wp), DIMENSION(jpi,jpj,jpk), INTENT(inout) :: pt3d ! 3D array on which the lbc is applied |
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221 | REAL(wp) , INTENT(in ) :: psgn ! control of the sign |
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222 | CHARACTER(len=3) , INTENT(in ), OPTIONAL :: cd_mpp ! MPP only (here do nothing) |
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223 | REAL(wp) , INTENT(in ), OPTIONAL :: pval ! background value (for closed boundaries) |
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224 | !! |
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225 | REAL(wp) :: zland |
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226 | !!---------------------------------------------------------------------- |
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227 | |
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228 | IF( PRESENT( pval ) ) THEN ; zland = pval ! set land value (zero by default) |
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229 | ELSE ; zland = 0._wp |
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230 | ENDIF |
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231 | |
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232 | |
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233 | IF( PRESENT( cd_mpp ) ) THEN |
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234 | ! only fill the overlap area and extra allows |
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235 | ! this is in mpp case. In this module, just do nothing |
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236 | ELSE |
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237 | ! |
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238 | ! ! East-West boundaries |
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239 | ! ! ====================== |
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240 | SELECT CASE ( nperio ) |
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241 | ! |
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242 | CASE ( 1 , 4 , 6 ) !** cyclic east-west |
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243 | pt3d( 1 ,:,:) = pt3d(jpim1,:,:) ! all points |
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244 | pt3d(jpi,:,:) = pt3d( 2 ,:,:) |
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245 | ! |
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246 | CASE DEFAULT !** East closed -- West closed |
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247 | SELECT CASE ( cd_type ) |
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248 | CASE ( 'T' , 'U' , 'V' , 'W' ) ! T-, U-, V-, W-points |
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249 | pt3d( 1 ,:,:) = zland |
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250 | pt3d(jpi,:,:) = zland |
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251 | CASE ( 'F' ) ! F-point |
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252 | pt3d(jpi,:,:) = zland |
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253 | END SELECT |
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254 | ! |
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255 | END SELECT |
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256 | ! |
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257 | ! ! North-South boundaries |
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258 | ! ! ====================== |
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259 | SELECT CASE ( nperio ) |
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260 | ! |
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261 | CASE ( 2 ) !** South symmetric -- North closed |
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262 | SELECT CASE ( cd_type ) |
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263 | CASE ( 'T' , 'U' , 'W' ) ! T-, U-, W-points |
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264 | pt3d(:, 1 ,:) = pt3d(:,3,:) |
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265 | pt3d(:,jpj,:) = zland |
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266 | CASE ( 'V' , 'F' ) ! V-, F-points |
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267 | pt3d(:, 1 ,:) = psgn * pt3d(:,2,:) |
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268 | pt3d(:,jpj,:) = zland |
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269 | END SELECT |
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270 | ! |
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271 | CASE ( 3 , 4 , 5 , 6 ) !** North fold T or F-point pivot -- South closed |
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272 | SELECT CASE ( cd_type ) ! South : closed |
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273 | CASE ( 'T' , 'U' , 'V' , 'W' , 'I' ) ! all points except F-point |
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274 | pt3d(:, 1 ,:) = zland |
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275 | END SELECT |
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276 | ! ! North fold |
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277 | CALL lbc_nfd( pt3d(:,:,:), cd_type, psgn ) |
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278 | ! |
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279 | CASE DEFAULT !** North closed -- South closed |
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280 | SELECT CASE ( cd_type ) |
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281 | CASE ( 'T' , 'U' , 'V' , 'W' ) ! T-, U-, V-, W-points |
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282 | pt3d(:, 1 ,:) = zland |
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283 | pt3d(:,jpj,:) = zland |
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284 | CASE ( 'F' ) ! F-point |
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285 | pt3d(:,jpj,:) = zland |
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286 | END SELECT |
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287 | ! |
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288 | END SELECT |
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289 | ! |
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290 | ENDIF |
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291 | ! |
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292 | END SUBROUTINE lbc_lnk_3d |
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293 | |
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294 | SUBROUTINE lbc_lnk_2d( pt2d, cd_type, psgn, cd_mpp, pval ) |
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295 | !!--------------------------------------------------------------------- |
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296 | !! *** ROUTINE lbc_lnk_2d *** |
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297 | !! |
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298 | !! ** Purpose : set lateral boundary conditions on a 2D array (non mpp case) |
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299 | !! |
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300 | !! ** Method : psign = -1 : change the sign across the north fold |
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301 | !! = 1 : no change of the sign across the north fold |
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302 | !! = 0 : no change of the sign across the north fold and |
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303 | !! strict positivity preserved: use inner row/column |
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304 | !! for closed boundaries. |
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305 | !!---------------------------------------------------------------------- |
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306 | CHARACTER(len=1) , INTENT(in ) :: cd_type ! nature of pt3d grid-points |
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307 | REAL(wp), DIMENSION(jpi,jpj), INTENT(inout) :: pt2d ! 2D array on which the lbc is applied |
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308 | REAL(wp) , INTENT(in ) :: psgn ! control of the sign |
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309 | CHARACTER(len=3) , INTENT(in ), OPTIONAL :: cd_mpp ! MPP only (here do nothing) |
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310 | REAL(wp) , INTENT(in ), OPTIONAL :: pval ! background value (for closed boundaries) |
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311 | !! |
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312 | REAL(wp) :: zland |
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313 | !!---------------------------------------------------------------------- |
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314 | |
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315 | IF( PRESENT( pval ) ) THEN ; zland = pval ! set land value (zero by default) |
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316 | ELSE ; zland = 0._wp |
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317 | ENDIF |
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318 | |
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319 | IF (PRESENT(cd_mpp)) THEN |
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320 | ! only fill the overlap area and extra allows |
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321 | ! this is in mpp case. In this module, just do nothing |
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322 | ELSE |
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323 | ! |
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324 | ! ! East-West boundaries |
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325 | ! ! ==================== |
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326 | SELECT CASE ( nperio ) |
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327 | ! |
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328 | CASE ( 1 , 4 , 6 ) !** cyclic east-west |
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329 | pt2d( 1 ,:) = pt2d(jpim1,:) ! all points |
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330 | pt2d(jpi,:) = pt2d( 2 ,:) |
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331 | ! |
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332 | CASE DEFAULT !** East closed -- West closed |
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333 | SELECT CASE ( cd_type ) |
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334 | CASE ( 'T' , 'U' , 'V' , 'W' ) ! T-, U-, V-, W-points |
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335 | pt2d( 1 ,:) = zland |
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336 | pt2d(jpi,:) = zland |
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337 | CASE ( 'F' ) ! F-point |
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338 | pt2d(jpi,:) = zland |
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339 | END SELECT |
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340 | ! |
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341 | END SELECT |
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342 | ! |
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343 | ! ! North-South boundaries |
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344 | ! ! ====================== |
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345 | SELECT CASE ( nperio ) |
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346 | ! |
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347 | CASE ( 2 ) !** South symmetric -- North closed |
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348 | SELECT CASE ( cd_type ) |
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349 | CASE ( 'T' , 'U' , 'W' ) ! T-, U-, W-points |
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350 | pt2d(:, 1 ) = pt2d(:,3) |
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351 | pt2d(:,jpj) = zland |
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352 | CASE ( 'V' , 'F' ) ! V-, F-points |
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353 | pt2d(:, 1 ) = psgn * pt2d(:,2) |
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354 | pt2d(:,jpj) = zland |
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355 | END SELECT |
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356 | ! |
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357 | CASE ( 3 , 4 , 5 , 6 ) !** North fold T or F-point pivot -- South closed |
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358 | SELECT CASE ( cd_type ) ! South : closed |
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359 | CASE ( 'T' , 'U' , 'V' , 'W' , 'I' ) ! all points except F-point |
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360 | pt2d(:, 1 ) = zland |
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361 | END SELECT |
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362 | ! ! North fold |
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363 | CALL lbc_nfd( pt2d(:,:), cd_type, psgn ) |
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364 | ! |
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365 | CASE DEFAULT !** North closed -- South closed |
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366 | SELECT CASE ( cd_type ) |
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367 | CASE ( 'T' , 'U' , 'V' , 'W' ) ! T-, U-, V-, W-points |
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368 | pt2d(:, 1 ) = zland |
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369 | pt2d(:,jpj) = zland |
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370 | CASE ( 'F' ) ! F-point |
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371 | pt2d(:,jpj) = zland |
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372 | END SELECT |
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373 | ! |
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374 | END SELECT |
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375 | ! |
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376 | ENDIF |
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377 | ! |
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378 | END SUBROUTINE lbc_lnk_2d |
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379 | |
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380 | #endif |
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381 | |
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382 | |
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383 | SUBROUTINE lbc_bdy_lnk_3d( pt3d, cd_type, psgn, ib_bdy ) |
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384 | !!--------------------------------------------------------------------- |
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385 | !! *** ROUTINE lbc_bdy_lnk *** |
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386 | !! |
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387 | !! ** Purpose : wrapper rountine to 'lbc_lnk_3d'. This wrapper is used |
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388 | !! to maintain the same interface with regards to the mpp |
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389 | !case |
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390 | !! |
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391 | !!---------------------------------------------------------------------- |
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392 | CHARACTER(len=1) , INTENT(in ) :: cd_type ! nature of pt3d grid-points |
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393 | REAL(wp), DIMENSION(jpi,jpj,jpk), INTENT(inout) :: pt3d ! 3D array on which the lbc is applied |
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394 | REAL(wp) , INTENT(in ) :: psgn ! control of the sign |
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395 | INTEGER :: ib_bdy ! BDY boundary set |
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396 | !! |
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397 | CALL lbc_lnk_3d( pt3d, cd_type, psgn) |
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398 | |
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399 | END SUBROUTINE lbc_bdy_lnk_3d |
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400 | |
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401 | SUBROUTINE lbc_bdy_lnk_2d( pt2d, cd_type, psgn, ib_bdy ) |
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402 | !!--------------------------------------------------------------------- |
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403 | !! *** ROUTINE lbc_bdy_lnk *** |
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404 | !! |
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405 | !! ** Purpose : wrapper rountine to 'lbc_lnk_3d'. This wrapper is used |
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406 | !! to maintain the same interface with regards to the mpp |
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407 | !case |
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408 | !! |
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409 | !!---------------------------------------------------------------------- |
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410 | CHARACTER(len=1) , INTENT(in ) :: cd_type ! nature of pt3d grid-points |
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411 | REAL(wp), DIMENSION(jpi,jpj), INTENT(inout) :: pt2d ! 3D array on which the lbc is applied |
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412 | REAL(wp) , INTENT(in ) :: psgn ! control of the sign |
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413 | INTEGER :: ib_bdy ! BDY boundary set |
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414 | !! |
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415 | CALL lbc_lnk_2d( pt2d, cd_type, psgn) |
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416 | |
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417 | END SUBROUTINE lbc_bdy_lnk_2d |
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418 | |
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419 | |
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420 | SUBROUTINE lbc_lnk_2d_e( pt2d, cd_type, psgn, jpri, jprj ) |
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421 | !!--------------------------------------------------------------------- |
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422 | !! *** ROUTINE lbc_lnk_2d *** |
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423 | !! |
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424 | !! ** Purpose : set lateral boundary conditions on a 2D array (non mpp case) |
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425 | !! special dummy routine to allow for use of halo indexing in mpp case |
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426 | !! |
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427 | !! ** Method : psign = -1 : change the sign across the north fold |
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428 | !! = 1 : no change of the sign across the north fold |
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429 | !! = 0 : no change of the sign across the north fold and |
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430 | !! strict positivity preserved: use inner row/column |
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431 | !! for closed boundaries. |
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432 | !!---------------------------------------------------------------------- |
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433 | CHARACTER(len=1) , INTENT(in ) :: cd_type ! nature of pt3d grid-points |
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434 | REAL(wp), DIMENSION(jpi,jpj), INTENT(inout) :: pt2d ! 2D array on which the lbc is applied |
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435 | REAL(wp) , INTENT(in ) :: psgn ! control of the sign |
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436 | INTEGER , INTENT(in ) :: jpri ! size of extra halo (not needed in non-mpp) |
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437 | INTEGER , INTENT(in ) :: jprj ! size of extra halo (not needed in non-mpp) |
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438 | !!---------------------------------------------------------------------- |
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439 | |
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440 | CALL lbc_lnk_2d( pt2d, cd_type, psgn ) |
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441 | ! |
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442 | END SUBROUTINE lbc_lnk_2d_e |
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443 | |
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444 | #endif |
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445 | |
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446 | !!====================================================================== |
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447 | END MODULE lbclnk |
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