1 | |
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2 | SUBROUTINE lbc_nfd_ext_/**/PRECISION( ptab, cd_nat, psgn, kextj ) |
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3 | !!---------------------------------------------------------------------- |
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4 | REAL(PRECISION), DIMENSION(:,1-kextj:),INTENT(inout) :: ptab |
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5 | CHARACTER(len=1), INTENT(in ) :: cd_nat ! nature of array grid-points |
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6 | REAL(PRECISION), INTENT(in ) :: psgn ! sign used across the north fold boundary |
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7 | INTEGER, INTENT(in ) :: kextj ! extra halo width at north fold |
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8 | ! |
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9 | INTEGER :: ji, jj, jh ! dummy loop indices |
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10 | INTEGER :: ipj |
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11 | INTEGER :: ijt, iju, ipjm1 |
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12 | !!---------------------------------------------------------------------- |
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13 | ! |
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14 | SELECT CASE ( jpni ) |
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15 | CASE ( 1 ) ; ipj = jpj ! 1 proc only along the i-direction |
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16 | CASE DEFAULT ; ipj = 4 ! several proc along the i-direction |
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17 | END SELECT |
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18 | ! |
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19 | ipjm1 = ipj-1 |
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20 | ! |
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21 | IF( c_NFtype == 'T' ) THEN ! * North fold T-point pivot |
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22 | ! |
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23 | SELECT CASE ( cd_nat ) |
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24 | CASE ( 'T' , 'W' ) ! T-, W-point |
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25 | DO jh = 0, kextj |
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26 | DO ji = 2, jpiglo |
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27 | ijt = jpiglo-ji+2 |
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28 | ptab(ji,ipj+jh) = psgn * ptab(ijt,ipj-2-jh) |
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29 | END DO |
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30 | ptab(1,ipj+jh) = psgn * ptab(3,ipj-2-jh) |
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31 | END DO |
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32 | DO ji = jpiglo/2+1, jpiglo |
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33 | ijt = jpiglo-ji+2 |
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34 | ptab(ji,ipjm1) = psgn * ptab(ijt,ipjm1) |
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35 | END DO |
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36 | CASE ( 'U' ) ! U-point |
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37 | DO jh = 0, kextj |
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38 | DO ji = 2, jpiglo-1 |
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39 | iju = jpiglo-ji+1 |
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40 | ptab(ji,ipj+jh) = psgn * ptab(iju,ipj-2-jh) |
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41 | END DO |
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42 | ptab( 1 ,ipj+jh) = psgn * ptab( 2 ,ipj-2-jh) |
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43 | ptab(jpiglo,ipj+jh) = psgn * ptab(jpiglo-1,ipj-2-jh) |
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44 | END DO |
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45 | DO ji = jpiglo/2, jpiglo-1 |
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46 | iju = jpiglo-ji+1 |
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47 | ptab(ji,ipjm1) = psgn * ptab(iju,ipjm1) |
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48 | END DO |
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49 | CASE ( 'V' ) ! V-point |
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50 | DO jh = 0, kextj |
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51 | DO ji = 2, jpiglo |
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52 | ijt = jpiglo-ji+2 |
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53 | ptab(ji,ipj-1+jh) = psgn * ptab(ijt,ipj-2-jh) |
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54 | ptab(ji,ipj+jh ) = psgn * ptab(ijt,ipj-3-jh) |
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55 | END DO |
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56 | ptab(1,ipj+jh) = psgn * ptab(3,ipj-3-jh) |
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57 | END DO |
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58 | CASE ( 'F' ) ! F-point |
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59 | DO jh = 0, kextj |
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60 | DO ji = 1, jpiglo-1 |
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61 | iju = jpiglo-ji+1 |
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62 | ptab(ji,ipj-1+jh) = psgn * ptab(iju,ipj-2-jh) |
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63 | ptab(ji,ipj+jh ) = psgn * ptab(iju,ipj-3-jh) |
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64 | END DO |
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65 | END DO |
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66 | DO jh = 0, kextj |
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67 | ptab( 1 ,ipj+jh) = psgn * ptab( 2 ,ipj-3-jh) |
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68 | ptab(jpiglo,ipj+jh) = psgn * ptab(jpiglo-1,ipj-3-jh) |
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69 | END DO |
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70 | END SELECT |
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71 | ! |
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72 | ENDIF ! c_NFtype == 'T' |
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73 | ! |
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74 | IF( c_NFtype == 'F' ) THEN ! * North fold F-point pivot |
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75 | ! |
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76 | SELECT CASE ( cd_nat ) |
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77 | CASE ( 'T' , 'W' ) ! T-, W-point |
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78 | DO jh = 0, kextj |
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79 | DO ji = 1, jpiglo |
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80 | ijt = jpiglo-ji+1 |
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81 | ptab(ji,ipj+jh) = psgn * ptab(ijt,ipj-1-jh) |
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82 | END DO |
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83 | END DO |
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84 | CASE ( 'U' ) ! U-point |
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85 | DO jh = 0, kextj |
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86 | DO ji = 1, jpiglo-1 |
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87 | iju = jpiglo-ji |
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88 | ptab(ji,ipj+jh) = psgn * ptab(iju,ipj-1-jh) |
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89 | END DO |
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90 | ptab(jpiglo,ipj+jh) = psgn * ptab(jpiglo-2,ipj-1-jh) |
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91 | END DO |
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92 | CASE ( 'V' ) ! V-point |
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93 | DO jh = 0, kextj |
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94 | DO ji = 1, jpiglo |
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95 | ijt = jpiglo-ji+1 |
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96 | ptab(ji,ipj+jh) = psgn * ptab(ijt,ipj-2-jh) |
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97 | END DO |
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98 | END DO |
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99 | DO ji = jpiglo/2+1, jpiglo |
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100 | ijt = jpiglo-ji+1 |
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101 | ptab(ji,ipjm1) = psgn * ptab(ijt,ipjm1) |
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102 | END DO |
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103 | CASE ( 'F' ) ! F-point |
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104 | DO jh = 0, kextj |
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105 | DO ji = 1, jpiglo-1 |
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106 | iju = jpiglo-ji |
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107 | ptab(ji,ipj+jh ) = psgn * ptab(iju,ipj-2-jh) |
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108 | END DO |
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109 | ptab(jpiglo,ipj+jh) = psgn * ptab(jpiglo-2,ipj-2-jh) |
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110 | END DO |
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111 | DO ji = jpiglo/2+1, jpiglo-1 |
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112 | iju = jpiglo-ji |
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113 | ptab(ji,ipjm1) = psgn * ptab(iju,ipjm1) |
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114 | END DO |
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115 | END SELECT |
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116 | ! |
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117 | ENDIF ! c_NFtype == 'F' |
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118 | ! |
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119 | END SUBROUTINE lbc_nfd_ext_/**/PRECISION |
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120 | |
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