1 | MODULE caldyn_kernels_base_mod |
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2 | USE icosa |
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3 | USE transfert_mod |
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4 | IMPLICIT NONE |
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5 | PRIVATE |
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6 | |
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7 | LOGICAL, PARAMETER, PUBLIC :: DEC = .TRUE. |
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8 | |
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9 | INTEGER, PARAMETER,PUBLIC :: energy=1, enstrophy=2 |
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10 | TYPE(t_field),POINTER,PUBLIC :: f_out_u(:), f_qu(:), f_qv(:) |
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11 | REAL(rstd),SAVE,POINTER :: out_u(:,:), p(:,:), qu(:,:) |
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12 | !$OMP THREADPRIVATE(out_u, p, qu) |
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13 | |
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14 | ! temporary shared variables for caldyn |
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15 | TYPE(t_field),POINTER,PUBLIC :: f_pk(:),f_wwuu(:),f_planetvel(:) |
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16 | |
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17 | INTEGER, PUBLIC :: caldyn_conserv |
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18 | !$OMP THREADPRIVATE(caldyn_conserv) |
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19 | |
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20 | TYPE(t_message),PUBLIC :: req_ps, req_mass, req_theta_rhodz, req_u, req_qu |
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21 | |
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22 | PUBLIC :: compute_geopot, compute_caldyn_vert |
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23 | |
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24 | CONTAINS |
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25 | |
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26 | !**************************** Geopotential ***************************** |
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27 | |
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28 | SUBROUTINE compute_geopot(ps,rhodz,theta, pk,geopot) |
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29 | USE icosa |
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30 | USE disvert_mod |
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31 | USE exner_mod |
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32 | USE trace |
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33 | USE omp_para |
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34 | IMPLICIT NONE |
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35 | REAL(rstd),INTENT(INOUT) :: ps(iim*jjm) |
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36 | REAL(rstd),INTENT(IN) :: rhodz(iim*jjm,llm) |
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37 | REAL(rstd),INTENT(IN) :: theta(iim*jjm,llm) ! potential temperature |
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38 | REAL(rstd),INTENT(OUT) :: pk(iim*jjm,llm) ! Exner function (compressible) /Lagrange multiplier (Boussinesq) |
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39 | REAL(rstd),INTENT(INOUT) :: geopot(iim*jjm,llm+1) ! geopotential |
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40 | |
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41 | INTEGER :: i,j,ij,l |
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42 | REAL(rstd) :: p_ik, exner_ik |
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43 | INTEGER :: ij_omp_begin_ext, ij_omp_end_ext |
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44 | |
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45 | |
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46 | CALL trace_start("compute_geopot") |
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47 | |
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48 | CALL distrib_level(ij_end_ext-ij_begin_ext+1,ij_omp_begin_ext,ij_omp_end_ext) |
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49 | ij_omp_begin_ext=ij_omp_begin_ext+ij_begin_ext-1 |
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50 | ij_omp_end_ext=ij_omp_end_ext+ij_begin_ext-1 |
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51 | |
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52 | IF(caldyn_eta==eta_mass .AND. .NOT. DEC) THEN |
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53 | |
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54 | !!! Compute exner function and geopotential |
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55 | DO l = 1,llm |
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56 | !DIR$ SIMD |
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57 | DO ij=ij_omp_begin_ext,ij_omp_end_ext |
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58 | p_ik = ptop + mass_ak(l) + mass_bk(l)*ps(ij) ! FIXME : leave ps for the moment ; change ps to Ms later |
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59 | exner_ik = cpp * (p_ik/preff) ** kappa |
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60 | pk(ij,l) = exner_ik |
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61 | ! specific volume v = kappa*theta*pi/p = dphi/g/rhodz |
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62 | geopot(ij,l+1) = geopot(ij,l) + (g*kappa)*rhodz(ij,l)*theta(ij,l)*exner_ik/p_ik |
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63 | ENDDO |
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64 | ENDDO |
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65 | ELSE |
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66 | ! We are using a Lagrangian vertical coordinate |
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67 | ! Pressure must be computed first top-down (temporarily stored in pk) |
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68 | ! Then Exner pressure and geopotential are computed bottom-up |
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69 | ! Notice that the computation below should work also when caldyn_eta=eta_mass |
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70 | |
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71 | IF(boussinesq) THEN ! compute geopotential and pk=Lagrange multiplier |
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72 | ! specific volume 1 = dphi/g/rhodz |
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73 | ! IF (is_omp_level_master) THEN ! no openMP on vertical due to dependency |
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74 | DO l = 1,llm |
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75 | !DIR$ SIMD |
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76 | DO ij=ij_omp_begin_ext,ij_omp_end_ext |
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77 | geopot(ij,l+1) = geopot(ij,l) + g*rhodz(ij,l) |
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78 | ENDDO |
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79 | ENDDO |
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80 | ! use hydrostatic balance with theta*rhodz to find pk (Lagrange multiplier=pressure) |
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81 | ! uppermost layer |
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82 | !DIR$ SIMD |
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83 | DO ij=ij_begin_ext,ij_end_ext |
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84 | pk(ij,llm) = ptop + (.5*g)*theta(ij,llm)*rhodz(ij,llm) |
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85 | END DO |
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86 | ! other layers |
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87 | DO l = llm-1, 1, -1 |
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88 | ! !$OMP DO SCHEDULE(STATIC) |
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89 | !DIR$ SIMD |
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90 | DO ij=ij_begin_ext,ij_end_ext |
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91 | pk(ij,l) = pk(ij,l+1) + (.5*g)*(theta(ij,l)*rhodz(ij,l)+theta(ij,l+1)*rhodz(ij,l+1)) |
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92 | END DO |
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93 | END DO |
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94 | ! now pk contains the Lagrange multiplier (pressure) |
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95 | ELSE ! non-Boussinesq, compute geopotential and Exner pressure |
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96 | ! uppermost layer |
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97 | |
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98 | !DIR$ SIMD |
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99 | DO ij=ij_omp_begin_ext,ij_omp_end_ext |
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100 | pk(ij,llm) = ptop + (.5*g)*rhodz(ij,llm) |
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101 | END DO |
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102 | ! other layers |
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103 | DO l = llm-1, 1, -1 |
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104 | !DIR$ SIMD |
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105 | DO ij=ij_omp_begin_ext,ij_omp_end_ext |
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106 | pk(ij,l) = pk(ij,l+1) + (.5*g)*(rhodz(ij,l)+rhodz(ij,l+1)) |
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107 | END DO |
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108 | END DO |
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109 | ! surface pressure (for diagnostics) |
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110 | IF(caldyn_eta==eta_lag) THEN |
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111 | DO ij=ij_omp_begin_ext,ij_omp_end_ext |
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112 | ps(ij) = pk(ij,1) + (.5*g)*rhodz(ij,1) |
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113 | END DO |
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114 | END IF |
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115 | ! specific volume v = kappa*theta*pi/p = dphi/g/rhodz |
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116 | DO l = 1,llm |
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117 | !DIR$ SIMD |
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118 | DO ij=ij_omp_begin_ext,ij_omp_end_ext |
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119 | p_ik = pk(ij,l) |
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120 | exner_ik = cpp * (p_ik/preff) ** kappa |
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121 | pk(ij,l) = exner_ik |
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122 | geopot(ij,l+1) = geopot(ij,l) + (g*kappa)*rhodz(ij,l)*theta(ij,l)*exner_ik/p_ik |
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123 | ENDDO |
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124 | ENDDO |
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125 | END IF |
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126 | |
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127 | END IF |
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128 | |
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129 | !ym flush geopot |
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130 | !$OMP BARRIER |
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131 | |
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132 | CALL trace_end("compute_geopot") |
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133 | |
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134 | END SUBROUTINE compute_geopot |
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135 | |
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136 | SUBROUTINE compute_caldyn_vert(u,theta,rhodz,convm, wflux,wwuu, dps,dtheta_rhodz,du) |
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137 | USE icosa |
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138 | USE disvert_mod |
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139 | USE exner_mod |
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140 | USE trace |
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141 | USE omp_para |
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142 | IMPLICIT NONE |
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143 | REAL(rstd),INTENT(IN) :: u(iim*3*jjm,llm) |
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144 | REAL(rstd),INTENT(IN) :: theta(iim*jjm,llm) |
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145 | REAL(rstd),INTENT(IN) :: rhodz(iim*jjm,llm) |
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146 | REAL(rstd),INTENT(INOUT) :: convm(iim*jjm,llm) ! mass flux convergence |
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147 | |
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148 | REAL(rstd),INTENT(INOUT) :: wflux(iim*jjm,llm+1) ! vertical mass flux (kg/m2/s) |
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149 | REAL(rstd),INTENT(INOUT) :: wwuu(iim*3*jjm,llm+1) |
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150 | REAL(rstd),INTENT(INOUT) :: du(iim*3*jjm,llm) |
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151 | REAL(rstd),INTENT(INOUT) :: dtheta_rhodz(iim*jjm,llm) |
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152 | REAL(rstd),INTENT(OUT) :: dps(iim*jjm) |
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153 | |
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154 | ! temporary variable |
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155 | INTEGER :: i,j,ij,l |
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156 | REAL(rstd) :: p_ik, exner_ik |
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157 | INTEGER :: ij_omp_begin, ij_omp_end |
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158 | |
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159 | CALL trace_start("compute_caldyn_vert") |
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160 | |
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161 | CALL distrib_level(ij_end-ij_begin+1,ij_omp_begin,ij_omp_end) |
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162 | ij_omp_begin=ij_omp_begin+ij_begin-1 |
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163 | ij_omp_end=ij_omp_end+ij_begin-1 |
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164 | |
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165 | ! REAL(rstd) :: wwuu(iim*3*jjm,llm+1) ! tmp var, don't know why but gain 30% on the whole code in opemp |
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166 | ! need to be understood |
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167 | |
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168 | ! wwuu=wwuu_out |
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169 | CALL trace_start("compute_caldyn_vert") |
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170 | |
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171 | !$OMP BARRIER |
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172 | !!! cumulate mass flux convergence from top to bottom |
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173 | ! IF (is_omp_level_master) THEN |
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174 | DO l = llm-1, 1, -1 |
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175 | ! IF (caldyn_conserv==energy) CALL test_message(req_qu) |
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176 | |
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177 | !!$OMP DO SCHEDULE(STATIC) |
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178 | !DIR$ SIMD |
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179 | DO ij=ij_omp_begin,ij_omp_end |
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180 | convm(ij,l) = convm(ij,l) + convm(ij,l+1) |
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181 | ENDDO |
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182 | ENDDO |
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183 | ! ENDIF |
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184 | |
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185 | !$OMP BARRIER |
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186 | ! FLUSH on convm |
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187 | !!!!!!!!!!!!!!!!!!!!!!!!! |
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188 | |
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189 | ! compute dps |
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190 | IF (is_omp_first_level) THEN |
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191 | !DIR$ SIMD |
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192 | DO ij=ij_begin,ij_end |
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193 | ! dps/dt = -int(div flux)dz |
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194 | IF(DEC) THEN |
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195 | dps(ij) = convm(ij,1) |
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196 | ELSE |
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197 | dps(ij) = convm(ij,1) * g |
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198 | END IF |
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199 | ENDDO |
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200 | ENDIF |
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201 | |
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202 | !!! Compute vertical mass flux (l=1,llm+1 done by caldyn_BC) |
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203 | DO l=ll_beginp1,ll_end |
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204 | ! IF (caldyn_conserv==energy) CALL test_message(req_qu) |
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205 | !DIR$ SIMD |
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206 | DO ij=ij_begin,ij_end |
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207 | ! w = int(z,ztop,div(flux)dz) + B(eta)dps/dt |
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208 | ! => w>0 for upward transport |
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209 | wflux( ij, l ) = bp(l) * convm( ij, 1 ) - convm( ij, l ) |
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210 | ENDDO |
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211 | ENDDO |
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212 | |
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213 | !--> flush wflux |
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214 | !$OMP BARRIER |
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215 | |
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216 | DO l=ll_begin,ll_endm1 |
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217 | !DIR$ SIMD |
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218 | DO ij=ij_begin,ij_end |
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219 | dtheta_rhodz(ij, l ) = dtheta_rhodz(ij, l ) - 0.5 * ( wflux(ij,l+1) * (theta(ij,l) + theta(ij,l+1))) |
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220 | ENDDO |
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221 | ENDDO |
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222 | |
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223 | DO l=ll_beginp1,ll_end |
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224 | !DIR$ SIMD |
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225 | DO ij=ij_begin,ij_end |
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226 | dtheta_rhodz(ij, l ) = dtheta_rhodz(ij, l ) + 0.5 * ( wflux(ij,l ) * (theta(ij,l-1) + theta(ij,l) ) ) |
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227 | ENDDO |
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228 | ENDDO |
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229 | |
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230 | |
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231 | ! Compute vertical transport |
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232 | DO l=ll_beginp1,ll_end |
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233 | !DIR$ SIMD |
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234 | DO ij=ij_begin,ij_end |
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235 | wwuu(ij+u_right,l) = 0.5*( wflux(ij,l) + wflux(ij+t_right,l)) * (u(ij+u_right,l) - u(ij+u_right,l-1)) |
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236 | wwuu(ij+u_lup,l) = 0.5* ( wflux(ij,l) + wflux(ij+t_lup,l)) * (u(ij+u_lup,l) - u(ij+u_lup,l-1)) |
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237 | wwuu(ij+u_ldown,l) = 0.5*( wflux(ij,l) + wflux(ij+t_ldown,l)) * (u(ij+u_ldown,l) - u(ij+u_ldown,l-1)) |
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238 | ENDDO |
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239 | ENDDO |
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240 | |
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241 | !--> flush wwuu |
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242 | !$OMP BARRIER |
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243 | |
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244 | ! Add vertical transport to du |
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245 | DO l=ll_begin,ll_end |
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246 | !DIR$ SIMD |
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247 | DO ij=ij_begin,ij_end |
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248 | du(ij+u_right, l ) = du(ij+u_right,l) - (wwuu(ij+u_right,l+1)+ wwuu(ij+u_right,l)) / (rhodz(ij,l)+rhodz(ij+t_right,l)) |
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249 | du(ij+u_lup, l ) = du(ij+u_lup,l) - (wwuu(ij+u_lup,l+1) + wwuu(ij+u_lup,l)) / (rhodz(ij,l)+rhodz(ij+t_lup,l)) |
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250 | du(ij+u_ldown, l ) = du(ij+u_ldown,l) - (wwuu(ij+u_ldown,l+1)+ wwuu(ij+u_ldown,l)) / (rhodz(ij,l)+rhodz(ij+t_ldown,l)) |
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251 | ENDDO |
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252 | ENDDO |
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253 | |
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254 | ! DO l=ll_beginp1,ll_end |
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255 | !!DIR$ SIMD |
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256 | ! DO ij=ij_begin,ij_end |
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257 | ! wwuu_out(ij+u_right,l) = wwuu(ij+u_right,l) |
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258 | ! wwuu_out(ij+u_lup,l) = wwuu(ij+u_lup,l) |
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259 | ! wwuu_out(ij+u_ldown,l) = wwuu(ij+u_ldown,l) |
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260 | ! ENDDO |
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261 | ! ENDDO |
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262 | |
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263 | CALL trace_end("compute_caldyn_vert") |
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264 | |
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265 | END SUBROUTINE compute_caldyn_vert |
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266 | |
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267 | END MODULE caldyn_kernels_base_mod |
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