1 | MODULE caldyn_kernels_hevi_mod |
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2 | USE icosa |
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3 | USE trace |
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4 | USE omp_para |
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5 | USE disvert_mod |
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6 | USE transfert_mod |
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7 | USE caldyn_vars_mod |
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8 | IMPLICIT NONE |
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9 | PRIVATE |
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10 | |
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11 | REAL(rstd), PARAMETER :: pbot=1e5, rho_bot=1e6 |
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12 | |
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13 | LOGICAL, SAVE :: debug_hevi_solver = .FALSE. |
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14 | |
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15 | PUBLIC :: compute_caldyn_slow_NH, & |
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16 | compute_caldyn_solver, compute_caldyn_fast |
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17 | |
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18 | CONTAINS |
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19 | |
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20 | SUBROUTINE compute_NH_geopot(tau, phis, m_ik, m_il, theta, W_il, Phi_il) |
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21 | REAL(rstd),INTENT(IN) :: tau ! solve Phi-tau*dPhi/dt = Phi_rhs |
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22 | REAL(rstd),INTENT(IN) :: phis(iim*jjm) |
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23 | REAL(rstd),INTENT(IN) :: m_ik(iim*jjm,llm) |
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24 | REAL(rstd),INTENT(IN) :: m_il(iim*jjm,llm+1) |
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25 | REAL(rstd),INTENT(IN) :: theta(iim*jjm,llm) |
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26 | REAL(rstd),INTENT(IN) :: W_il(iim*jjm,llm+1) ! vertical momentum |
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27 | REAL(rstd),INTENT(INOUT) :: Phi_il(iim*jjm,llm+1) ! geopotential |
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28 | |
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29 | REAL(rstd) :: Phi_star_il(iim*jjm,llm+1) |
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30 | REAL(rstd) :: p_ik(iim*jjm,llm) ! pressure |
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31 | REAL(rstd) :: R_il(iim*jjm,llm+1) ! rhs of tridiag problem |
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32 | REAL(rstd) :: x_il(iim*jjm,llm+1) ! solution of tridiag problem |
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33 | REAL(rstd) :: A_ik(iim*jjm,llm) ! off-diagonal coefficients of tridiag problem |
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34 | REAL(rstd) :: B_il(iim*jjm,llm+1) ! diagonal coefficients of tridiag problem |
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35 | REAL(rstd) :: C_ik(iim*jjm,llm) ! Thomas algorithm |
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36 | REAL(rstd) :: D_il(iim*jjm,llm+1) ! Thomas algorithm |
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37 | REAL(rstd) :: gamma, rho_ij, X_ij, Y_ij |
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38 | REAL(rstd) :: wil, tau2_g, g2, gm2, ml_g2, c2_mik, vreff |
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39 | |
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40 | INTEGER :: iter, ij, l, ij_omp_begin_ext, ij_omp_end_ext |
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41 | |
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42 | CALL distrib_level(ij_begin_ext,ij_end_ext, ij_omp_begin_ext,ij_omp_end_ext) |
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43 | |
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44 | IF(dysl) THEN |
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45 | #define PHI_BOT(ij) phis(ij) |
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46 | #include "../kernels_hex/compute_NH_geopot.k90" |
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47 | #undef PHI_BOT |
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48 | ELSE |
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49 | ! FIXME : vertical OpenMP parallelism will not work |
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50 | |
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51 | tau2_g=tau*tau/g |
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52 | g2=g*g |
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53 | gm2 = g**-2 |
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54 | gamma = 1./(1.-kappa) |
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55 | |
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56 | ! compute Phi_star |
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57 | DO l=1,llm+1 |
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58 | !DIR$ SIMD |
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59 | DO ij=ij_begin_ext,ij_end_ext |
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60 | Phi_star_il(ij,l) = Phi_il(ij,l) + tau*g2*(W_il(ij,l)/m_il(ij,l)-tau) |
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61 | ENDDO |
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62 | ENDDO |
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63 | |
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64 | ! Newton-Raphson iteration : Phi_il contains current guess value |
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65 | DO iter=1,5 ! 2 iterations should be enough |
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66 | |
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67 | ! Compute pressure, A_ik |
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68 | DO l=1,llm |
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69 | !DIR$ SIMD |
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70 | DO ij=ij_begin_ext,ij_end_ext |
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71 | rho_ij = (g*m_ik(ij,l))/(Phi_il(ij,l+1)-Phi_il(ij,l)) |
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72 | X_ij = (cpp/preff)*kappa*theta(ij,l)*rho_ij |
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73 | p_ik(ij,l) = preff*(X_ij**gamma) |
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74 | c2_mik = gamma*p_ik(ij,l)/(rho_ij*m_ik(ij,l)) ! c^2 = gamma*R*T = gamma*p/rho |
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75 | A_ik(ij,l) = c2_mik*(tau/g*rho_ij)**2 |
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76 | ENDDO |
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77 | ENDDO |
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78 | |
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79 | ! Compute residual, B_il |
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80 | ! bottom interface l=1 |
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81 | !DIR$ SIMD |
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82 | DO ij=ij_begin_ext,ij_end_ext |
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83 | ml_g2 = gm2*m_il(ij,1) |
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84 | B_il(ij,1) = A_ik(ij,1) + ml_g2 + tau2_g*rho_bot |
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85 | R_il(ij,1) = ml_g2*( Phi_il(ij,1)-Phi_star_il(ij,1)) & |
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86 | + tau2_g*( p_ik(ij,1)-pbot+rho_bot*(Phi_il(ij,1)-phis(ij)) ) |
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87 | ENDDO |
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88 | ! inner interfaces |
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89 | DO l=2,llm |
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90 | !DIR$ SIMD |
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91 | DO ij=ij_begin_ext,ij_end_ext |
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92 | ml_g2 = gm2*m_il(ij,l) |
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93 | B_il(ij,l) = A_ik(ij,l)+A_ik(ij,l-1) + ml_g2 |
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94 | R_il(ij,l) = ml_g2*( Phi_il(ij,l)-Phi_star_il(ij,l)) & |
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95 | + tau2_g*(p_ik(ij,l)-p_ik(ij,l-1)) |
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96 | ! consistency check : if Wil=0 and initial state is in hydrostatic balance |
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97 | ! then Phi_star_il(ij,l) = Phi_il(ij,l) - tau^2*g^2 |
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98 | ! and residual = tau^2*(ml+(1/g)dl_pi)=0 |
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99 | ENDDO |
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100 | ENDDO |
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101 | ! top interface l=llm+1 |
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102 | !DIR$ SIMD |
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103 | DO ij=ij_begin_ext,ij_end_ext |
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104 | ml_g2 = gm2*m_il(ij,llm+1) |
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105 | B_il(ij,llm+1) = A_ik(ij,llm) + ml_g2 |
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106 | R_il(ij,llm+1) = ml_g2*( Phi_il(ij,llm+1)-Phi_star_il(ij,llm+1)) & |
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107 | + tau2_g*( ptop-p_ik(ij,llm) ) |
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108 | ENDDO |
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109 | |
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110 | ! FIXME later |
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111 | ! the lines below modify the tridiag problem |
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112 | ! for flat, rigid boundary conditions at top and bottom : |
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113 | ! zero out A(1), A(llm), R(1), R(llm+1) |
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114 | ! => x(l)=0 at l=1,llm+1 |
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115 | DO ij=ij_begin_ext,ij_end_ext |
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116 | A_ik(ij,1) = 0. |
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117 | A_ik(ij,llm) = 0. |
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118 | R_il(ij,1) = 0. |
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119 | R_il(ij,llm+1) = 0. |
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120 | ENDDO |
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121 | |
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122 | IF(debug_hevi_solver) THEN ! print Linf(residual) |
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123 | PRINT *, '[hevi_solver] R,p', iter, MAXVAL(ABS(R_il)), MAXVAL(p_ik) |
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124 | END IF |
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125 | |
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126 | ! Solve -A(l-1)x(l-1) + B(l)x(l) - A(l)x(l+1) = R(l) using Thomas algorithm |
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127 | ! Forward sweep : |
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128 | ! C(0)=0, C(l) = -A(l) / (B(l)+A(l-1)C(l-1)), |
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129 | ! D(0)=0, D(l) = (R(l)+A(l-1)D(l-1)) / (B(l)+A(l-1)C(l-1)) |
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130 | ! bottom interface l=1 |
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131 | !DIR$ SIMD |
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132 | DO ij=ij_begin_ext,ij_end_ext |
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133 | X_ij = 1./B_il(ij,1) |
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134 | C_ik(ij,1) = -A_ik(ij,1) * X_ij |
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135 | D_il(ij,1) = R_il(ij,1) * X_ij |
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136 | ENDDO |
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137 | ! inner interfaces/layers |
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138 | DO l=2,llm |
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139 | !DIR$ SIMD |
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140 | DO ij=ij_begin_ext,ij_end_ext |
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141 | X_ij = 1./(B_il(ij,l) + A_ik(ij,l-1)*C_ik(ij,l-1)) |
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142 | C_ik(ij,l) = -A_ik(ij,l) * X_ij |
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143 | D_il(ij,l) = (R_il(ij,l)+A_ik(ij,l-1)*D_il(ij,l-1)) * X_ij |
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144 | ENDDO |
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145 | ENDDO |
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146 | ! top interface l=llm+1 |
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147 | !DIR$ SIMD |
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148 | DO ij=ij_begin_ext,ij_end_ext |
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149 | X_ij = 1./(B_il(ij,llm+1) + A_ik(ij,llm)*C_ik(ij,llm)) |
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150 | D_il(ij,llm+1) = (R_il(ij,llm+1)+A_ik(ij,llm)*D_il(ij,llm)) * X_ij |
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151 | ENDDO |
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152 | |
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153 | ! Back substitution : |
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154 | ! x(i) = D(i)-C(i)x(i+1), x(N+1)=0 |
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155 | ! + Newton-Raphson update |
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156 | x_il=0. ! FIXME |
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157 | ! top interface l=llm+1 |
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158 | !DIR$ SIMD |
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159 | DO ij=ij_begin_ext,ij_end_ext |
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160 | x_il(ij,llm+1) = D_il(ij,llm+1) |
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161 | Phi_il(ij,llm+1) = Phi_il(ij,llm+1) - x_il(ij,llm+1) |
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162 | ENDDO |
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163 | ! lower interfaces |
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164 | DO l=llm,1,-1 |
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165 | !DIR$ SIMD |
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166 | DO ij=ij_begin_ext,ij_end_ext |
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167 | x_il(ij,l) = D_il(ij,l) - C_ik(ij,l)*x_il(ij,l+1) |
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168 | Phi_il(ij,l) = Phi_il(ij,l) - x_il(ij,l) |
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169 | ENDDO |
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170 | ENDDO |
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171 | |
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172 | IF(debug_hevi_solver) THEN |
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173 | PRINT *, '[hevi_solver] A,B', iter, MAXVAL(ABS(A_ik)),MAXVAL(ABS(B_il)) |
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174 | PRINT *, '[hevi_solver] C,D', iter, MAXVAL(ABS(C_ik)),MAXVAL(ABS(D_il)) |
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175 | DO l=1,llm+1 |
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176 | WRITE(*,'(A,I2.1,I3.2,E9.2)') '[hevi_solver] x', iter,l, MAXVAL(ABS(x_il(:,l))) |
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177 | END DO |
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178 | END IF |
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179 | |
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180 | END DO ! Newton-Raphson |
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181 | |
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182 | END IF ! dysl |
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183 | |
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184 | END SUBROUTINE compute_NH_geopot |
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185 | |
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186 | SUBROUTINE compute_caldyn_solver(tau,phis, rhodz,theta,pk, geopot,W, m_il,pres, dPhi,dW,du) |
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187 | REAL(rstd),INTENT(IN) :: tau ! "solve" Phi-tau*dPhi/dt = Phi_rhs |
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188 | REAL(rstd),INTENT(IN) :: phis(iim*jjm) |
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189 | REAL(rstd),INTENT(IN) :: rhodz(iim*jjm,llm) |
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190 | REAL(rstd),INTENT(IN) :: theta(iim*jjm,llm,nqdyn) |
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191 | REAL(rstd),INTENT(OUT) :: pk(iim*jjm,llm) |
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192 | REAL(rstd),INTENT(INOUT) :: geopot(iim*jjm,llm+1) |
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193 | REAL(rstd),INTENT(INOUT) :: W(iim*jjm,llm+1) ! OUT if tau>0 |
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194 | REAL(rstd),INTENT(OUT) :: m_il(iim*jjm,llm+1) ! rhodz averaged to interfaces |
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195 | REAL(rstd),INTENT(OUT) :: pres(iim*jjm,llm) ! pressure |
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196 | REAL(rstd),INTENT(OUT) :: dW(iim*jjm,llm+1) |
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197 | REAL(rstd),INTENT(OUT) :: dPhi(iim*jjm,llm+1) |
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198 | REAL(rstd),INTENT(OUT) :: du(3*iim*jjm,llm) |
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199 | |
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200 | REAL(rstd) :: berni(iim*jjm,llm) ! (W/m_il)^2 |
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201 | REAL(rstd) :: berni1(iim*jjm) ! (W/m_il)^2 |
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202 | REAL(rstd) :: gamma, rho_ij, T_ij, X_ij, Y_ij, vreff, Rd, Cvd, Rd_preff |
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203 | INTEGER :: ij, l |
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204 | |
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205 | CALL trace_start("compute_caldyn_solver") |
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206 | |
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207 | Rd=cpp*kappa |
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208 | |
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209 | IF(dysl) THEN |
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210 | |
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211 | !$OMP BARRIER |
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212 | |
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213 | #include "../kernels_hex/caldyn_mil.k90" |
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214 | IF(tau>0) THEN ! solve implicit problem for geopotential |
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215 | CALL compute_NH_geopot(tau,phis, rhodz, m_il, theta, W, geopot) |
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216 | END IF |
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217 | #define PHI_BOT(ij) phis(ij) |
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218 | #include "../kernels_hex/caldyn_solver.k90" |
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219 | #undef PHI_BOT |
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220 | !$OMP BARRIER |
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221 | |
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222 | ELSE |
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223 | |
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224 | #define BERNI(ij) berni1(ij) |
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225 | ! FIXME : vertical OpenMP parallelism will not work |
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226 | |
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227 | ! average m_ik to interfaces => m_il |
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228 | !DIR$ SIMD |
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229 | DO ij=ij_begin_ext,ij_end_ext |
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230 | m_il(ij,1) = .5*rhodz(ij,1) |
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231 | ENDDO |
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232 | DO l=2,llm |
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233 | !DIR$ SIMD |
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234 | DO ij=ij_begin_ext,ij_end_ext |
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235 | m_il(ij,l) = .5*(rhodz(ij,l-1)+rhodz(ij,l)) |
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236 | ENDDO |
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237 | ENDDO |
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238 | !DIR$ SIMD |
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239 | DO ij=ij_begin_ext,ij_end_ext |
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240 | m_il(ij,llm+1) = .5*rhodz(ij,llm) |
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241 | ENDDO |
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242 | |
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243 | IF(tau>0) THEN ! solve implicit problem for geopotential |
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244 | CALL compute_NH_geopot(tau, phis, rhodz, m_il, theta, W, geopot) |
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245 | END IF |
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246 | |
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247 | ! Compute pressure, stored temporarily in pk |
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248 | ! kappa = R/Cp |
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249 | ! 1-kappa = Cv/Cp |
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250 | ! Cp/Cv = 1/(1-kappa) |
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251 | gamma = 1./(1.-kappa) |
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252 | DO l=1,llm |
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253 | !DIR$ SIMD |
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254 | DO ij=ij_begin_ext,ij_end_ext |
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255 | rho_ij = (g*rhodz(ij,l))/(geopot(ij,l+1)-geopot(ij,l)) |
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256 | X_ij = (cpp/preff)*kappa*theta(ij,l,1)*rho_ij |
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257 | ! kappa.theta.rho = p/exner |
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258 | ! => X = (p/p0)/(exner/Cp) |
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259 | ! = (p/p0)^(1-kappa) |
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260 | pk(ij,l) = preff*(X_ij**gamma) |
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261 | ENDDO |
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262 | ENDDO |
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263 | |
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264 | ! Update W, compute tendencies |
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265 | DO l=2,llm |
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266 | !DIR$ SIMD |
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267 | DO ij=ij_begin_ext,ij_end_ext |
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268 | dW(ij,l) = (1./g)*(pk(ij,l-1)-pk(ij,l)) - m_il(ij,l) |
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269 | W(ij,l) = W(ij,l)+tau*dW(ij,l) ! update W |
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270 | dPhi(ij,l) = g*g*W(ij,l)/m_il(ij,l) |
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271 | ENDDO |
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272 | ! PRINT *,'Max dPhi', l,ij_begin,ij_end, MAXVAL(abs(dPhi(ij_begin:ij_end,l))) |
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273 | ! PRINT *,'Max dW', l,ij_begin,ij_end, MAXVAL(abs(dW(ij_begin:ij_end,l))) |
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274 | ENDDO |
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275 | ! Lower BC (FIXME : no orography yet !) |
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276 | DO ij=ij_begin,ij_end |
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277 | dPhi(ij,1)=0 |
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278 | W(ij,1)=0 |
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279 | dW(ij,1)=0 |
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280 | dPhi(ij,llm+1)=0 ! rigid lid |
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281 | W(ij,llm+1)=0 |
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282 | dW(ij,llm+1)=0 |
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283 | ENDDO |
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284 | ! Upper BC p=ptop |
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285 | ! DO ij=ij_omp_begin_ext,ij_omp_end_ext |
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286 | ! dPhi(ij,llm+1) = W(ij,llm+1)/rhodz(ij,llm) |
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287 | ! dW(ij,llm+1) = (1./g)*(pk(ij,llm)-ptop) - .5*rhodz(ij,llm) |
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288 | ! ENDDO |
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289 | |
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290 | ! Compute Exner function (needed by compute_caldyn_fast) and du=-g^2.grad(w^2) |
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291 | DO l=1,llm |
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292 | !DIR$ SIMD |
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293 | DO ij=ij_begin_ext,ij_end_ext |
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294 | pk(ij,l) = cpp*((pk(ij,l)/preff)**kappa) ! other formulae possible if exponentiation is slow |
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295 | BERNI(ij) = (-.25*g*g)*( & |
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296 | (W(ij,l)/m_il(ij,l))**2 & |
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297 | + (W(ij,l+1)/m_il(ij,l+1))**2 ) |
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298 | ENDDO |
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299 | DO ij=ij_begin,ij_end |
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300 | du(ij+u_right,l) = ne_right*(BERNI(ij)-BERNI(ij+t_right)) |
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301 | du(ij+u_lup,l) = ne_lup *(BERNI(ij)-BERNI(ij+t_lup)) |
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302 | du(ij+u_ldown,l) = ne_ldown*(BERNI(ij)-BERNI(ij+t_ldown)) |
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303 | ENDDO |
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304 | ENDDO |
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305 | #undef BERNI |
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306 | |
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307 | END IF ! dysl |
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308 | |
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309 | CALL trace_end("compute_caldyn_solver") |
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310 | |
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311 | END SUBROUTINE compute_caldyn_solver |
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312 | |
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313 | SUBROUTINE compute_caldyn_fast(tau,u,rhodz,theta,pk,geopot,du) |
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314 | REAL(rstd),INTENT(IN) :: tau ! "solve" u-tau*du/dt = rhs |
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315 | REAL(rstd),INTENT(INOUT) :: u(iim*3*jjm,llm) ! OUT if tau>0 |
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316 | REAL(rstd),INTENT(IN) :: rhodz(iim*jjm,llm) |
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317 | REAL(rstd),INTENT(IN) :: theta(iim*jjm,llm,nqdyn) |
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318 | REAL(rstd),INTENT(INOUT) :: pk(iim*jjm,llm) |
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319 | REAL(rstd),INTENT(INOUT) :: geopot(iim*jjm,llm+1) |
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320 | REAL(rstd),INTENT(INOUT) :: du(iim*3*jjm,llm) |
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321 | REAL(rstd) :: berni(iim*jjm,llm) ! Bernoulli function |
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322 | REAL(rstd) :: berniv(iim*jjm,llm) ! moist Bernoulli function |
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323 | |
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324 | INTEGER :: i,j,ij,l |
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325 | REAL(rstd) :: cp_ik, qv, temp, chi, nu, due, due_right, due_lup, due_ldown |
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326 | |
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327 | CALL trace_start("compute_caldyn_fast") |
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328 | |
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329 | IF(dysl_caldyn_fast) THEN |
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330 | #include "../kernels_hex/caldyn_fast.k90" |
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331 | ELSE |
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332 | |
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333 | ! Compute Bernoulli term |
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334 | IF(boussinesq) THEN |
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335 | DO l=ll_begin,ll_end |
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336 | !DIR$ SIMD |
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337 | DO ij=ij_begin,ij_end |
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338 | berni(ij,l) = pk(ij,l) |
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339 | ! from now on pk contains the vertically-averaged geopotential |
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340 | pk(ij,l) = .5*(geopot(ij,l)+geopot(ij,l+1)) |
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341 | END DO |
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342 | END DO |
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343 | ELSE ! compressible |
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344 | |
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345 | DO l=ll_begin,ll_end |
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346 | SELECT CASE(caldyn_thermo) |
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347 | CASE(thermo_theta) ! vdp = theta.dpi => B = Phi |
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348 | !DIR$ SIMD |
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349 | DO ij=ij_begin,ij_end |
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350 | berni(ij,l) = .5*(geopot(ij,l)+geopot(ij,l+1)) |
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351 | END DO |
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352 | CASE(thermo_entropy) ! vdp = dG + sdT => B = Phi + G, G=h-Ts=T*(cpp-s) |
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353 | !DIR$ SIMD |
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354 | DO ij=ij_begin,ij_end |
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355 | berni(ij,l) = .5*(geopot(ij,l)+geopot(ij,l+1)) & |
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356 | + pk(ij,l)*(cpp-theta(ij,l,1)) ! pk=temperature, theta=entropy |
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357 | END DO |
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358 | CASE(thermo_moist) |
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359 | !DIR$ SIMD |
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360 | DO ij=ij_begin,ij_end |
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361 | ! du/dt = grad(Bd)+rv.grad(Bv)+s.grad(T) |
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362 | ! Bd = Phi + gibbs_d |
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363 | ! Bv = Phi + gibbs_v |
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364 | ! pk=temperature, theta=entropy |
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365 | qv = theta(ij,l,2) |
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366 | temp = pk(ij,l) |
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367 | chi = log(temp/Treff) |
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368 | nu = (chi*(cpp+qv*cppv)-theta(ij,l,1))/(Rd+qv*Rv) ! log(p/preff) |
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369 | berni(ij,l) = .5*(geopot(ij,l)+geopot(ij,l+1)) & |
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370 | + temp*(cpp*(1.-chi)+Rd*nu) |
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371 | berniv(ij,l) = .5*(geopot(ij,l)+geopot(ij,l+1)) & |
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372 | + temp*(cppv*(1.-chi)+Rv*nu) |
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373 | END DO |
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374 | END SELECT |
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375 | END DO |
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376 | |
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377 | END IF ! Boussinesq/compressible |
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378 | |
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379 | !!! u:=u+tau*du, du = -grad(B)-theta.grad(pi) |
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380 | DO l=ll_begin,ll_end |
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381 | IF(caldyn_thermo == thermo_moist) THEN |
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382 | !DIR$ SIMD |
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383 | DO ij=ij_begin,ij_end |
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384 | due_right = berni(ij+t_right,l)-berni(ij,l) & |
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385 | + 0.5*(theta(ij,l,1)+theta(ij+t_right,l,1)) & |
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386 | *(pk(ij+t_right,l)-pk(ij,l)) & |
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387 | + 0.5*(theta(ij,l,2)+theta(ij+t_right,l,2)) & |
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388 | *(berniv(ij+t_right,l)-berniv(ij,l)) |
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389 | |
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390 | due_lup = berni(ij+t_lup,l)-berni(ij,l) & |
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391 | + 0.5*(theta(ij,l,1)+theta(ij+t_lup,l,1)) & |
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392 | *(pk(ij+t_lup,l)-pk(ij,l)) & |
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393 | + 0.5*(theta(ij,l,2)+theta(ij+t_lup,l,2)) & |
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394 | *(berniv(ij+t_lup,l)-berniv(ij,l)) |
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395 | |
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396 | due_ldown = berni(ij+t_ldown,l)-berni(ij,l) & |
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397 | + 0.5*(theta(ij,l,1)+theta(ij+t_ldown,l,1)) & |
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398 | *(pk(ij+t_ldown,l)-pk(ij,l)) & |
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399 | + 0.5*(theta(ij,l,2)+theta(ij+t_ldown,l,2)) & |
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400 | *(berniv(ij+t_ldown,l)-berniv(ij,l)) |
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401 | |
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402 | du(ij+u_right,l) = du(ij+u_right,l) - ne_right*due_right |
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403 | du(ij+u_lup,l) = du(ij+u_lup,l) - ne_lup*due_lup |
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404 | du(ij+u_ldown,l) = du(ij+u_ldown,l) - ne_ldown*due_ldown |
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405 | u(ij+u_right,l) = u(ij+u_right,l) + tau*du(ij+u_right,l) |
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406 | u(ij+u_lup,l) = u(ij+u_lup,l) + tau*du(ij+u_lup,l) |
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407 | u(ij+u_ldown,l) = u(ij+u_ldown,l) + tau*du(ij+u_ldown,l) |
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408 | END DO |
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409 | ELSE |
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410 | !DIR$ SIMD |
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411 | DO ij=ij_begin,ij_end |
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412 | due_right = 0.5*(theta(ij,l,1)+theta(ij+t_right,l,1)) & |
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413 | *(pk(ij+t_right,l)-pk(ij,l)) & |
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414 | + berni(ij+t_right,l)-berni(ij,l) |
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415 | due_lup = 0.5*(theta(ij,l,1)+theta(ij+t_lup,l,1)) & |
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416 | *(pk(ij+t_lup,l)-pk(ij,l)) & |
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417 | + berni(ij+t_lup,l)-berni(ij,l) |
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418 | due_ldown = 0.5*(theta(ij,l,1)+theta(ij+t_ldown,l,1)) & |
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419 | *(pk(ij+t_ldown,l)-pk(ij,l)) & |
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420 | + berni(ij+t_ldown,l)-berni(ij,l) |
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421 | du(ij+u_right,l) = du(ij+u_right,l) - ne_right*due_right |
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422 | du(ij+u_lup,l) = du(ij+u_lup,l) - ne_lup*due_lup |
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423 | du(ij+u_ldown,l) = du(ij+u_ldown,l) - ne_ldown*due_ldown |
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424 | u(ij+u_right,l) = u(ij+u_right,l) + tau*du(ij+u_right,l) |
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425 | u(ij+u_lup,l) = u(ij+u_lup,l) + tau*du(ij+u_lup,l) |
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426 | u(ij+u_ldown,l) = u(ij+u_ldown,l) + tau*du(ij+u_ldown,l) |
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427 | END DO |
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428 | END IF |
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429 | END DO |
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430 | |
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431 | END IF ! dysl |
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432 | CALL trace_end("compute_caldyn_fast") |
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433 | |
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434 | END SUBROUTINE compute_caldyn_fast |
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435 | |
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436 | |
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437 | SUBROUTINE compute_caldyn_slow_NH(u,rhodz,Phi,W, F_el,gradPhi2,w_il, hflux,du,dPhi,dW) |
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438 | REAL(rstd),INTENT(IN) :: u(3*iim*jjm,llm) ! prognostic "velocity" |
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439 | REAL(rstd),INTENT(IN) :: rhodz(iim*jjm,llm) ! rho*dz |
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440 | REAL(rstd),INTENT(IN) :: Phi(iim*jjm,llm+1) ! prognostic geopotential |
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441 | REAL(rstd),INTENT(IN) :: W(iim*jjm,llm+1) ! prognostic vertical momentum |
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442 | |
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443 | REAL(rstd),INTENT(OUT) :: hflux(3*iim*jjm,llm) ! hflux in kg/s |
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444 | REAL(rstd),INTENT(OUT) :: du(3*iim*jjm,llm) |
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445 | REAL(rstd),INTENT(OUT) :: dW(iim*jjm,llm+1) |
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446 | REAL(rstd),INTENT(OUT) :: dPhi(iim*jjm,llm+1) |
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447 | |
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448 | REAL(rstd) :: w_il(iim*jjm,llm+1) ! Wil/mil |
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449 | REAL(rstd) :: F_el(3*iim*jjm,llm+1) ! NH mass flux |
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450 | REAL(rstd) :: gradPhi2(iim*jjm,llm+1) ! grad_Phi**2 |
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451 | REAL(rstd) :: DePhil(3*iim*jjm,llm+1) ! grad(Phi) |
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452 | |
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453 | INTEGER :: ij,l,kdown,kup |
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454 | REAL(rstd) :: W_el, W2_el, uu_right, uu_lup, uu_ldown, gPhi2, dP, divG, u2, uu |
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455 | |
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456 | REAL(rstd) :: berni(iim*jjm,llm) ! Bernoulli function |
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457 | REAL(rstd) :: G_el(3*iim*jjm,llm+1) ! horizontal flux of W |
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458 | REAL(rstd) :: v_el(3*iim*jjm,llm+1) |
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459 | |
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460 | REAL(rstd) :: berni1(iim*jjm) ! Bernoulli function |
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461 | REAL(rstd) :: G_el1(3*iim*jjm) ! horizontal flux of W |
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462 | REAL(rstd) :: v_el1(3*iim*jjm) |
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463 | |
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464 | CALL trace_start("compute_caldyn_slow_NH") |
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465 | |
---|
466 | IF(dysl) THEN |
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467 | |
---|
468 | !$OMP BARRIER |
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469 | #include "../kernels_hex/caldyn_slow_NH.k90" |
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470 | !$OMP BARRIER |
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471 | |
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472 | ELSE |
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473 | |
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474 | #define BERNI(ij) berni1(ij) |
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475 | #define G_EL(ij) G_el1(ij) |
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476 | #define V_EL(ij) v_el1(ij) |
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477 | |
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478 | DO l=ll_begin, ll_endp1 ! compute on l levels (interfaces) |
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479 | IF(l==1) THEN |
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480 | kdown=1 |
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481 | ELSE |
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482 | kdown=l-1 |
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483 | END IF |
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484 | IF(l==llm+1) THEN |
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485 | kup=llm |
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486 | ELSE |
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487 | kup=l |
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488 | END IF |
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489 | ! below : "checked" means "formula also valid when kup=kdown (top/bottom)" |
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490 | ! compute mil, wil=Wil/mil |
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491 | DO ij=ij_begin_ext, ij_end_ext |
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492 | w_il(ij,l) = 2.*W(ij,l)/(rhodz(ij,kdown)+rhodz(ij,kup)) ! checked |
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493 | END DO |
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494 | ! compute DePhi, v_el, G_el, F_el |
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495 | ! v_el, W2_el and therefore G_el incorporate metric factor le_de |
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496 | ! while DePhil, W_el and F_el don't |
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497 | DO ij=ij_begin_ext, ij_end_ext |
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498 | ! Compute on edge 'right' |
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499 | W_el = .5*( W(ij,l)+W(ij+t_right,l) ) |
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500 | DePhil(ij+u_right,l) = ne_right*(Phi(ij+t_right,l)-Phi(ij,l)) |
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501 | F_el(ij+u_right,l) = DePhil(ij+u_right,l)*W_el |
---|
502 | W2_el = .5*le_de(ij+u_right) * & |
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503 | ( W(ij,l)*w_il(ij,l) + W(ij+t_right,l)*w_il(ij+t_right,l) ) |
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504 | V_EL(ij+u_right) = .5*le_de(ij+u_right)*(u(ij+u_right,kup)+u(ij+u_right,kdown)) ! checked |
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505 | G_EL(ij+u_right) = V_EL(ij+u_right)*W_el - DePhil(ij+u_right,l)*W2_el |
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506 | ! Compute on edge 'lup' |
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507 | W_el = .5*( W(ij,l)+W(ij+t_lup,l) ) |
---|
508 | DePhil(ij+u_lup,l) = ne_lup*(Phi(ij+t_lup,l)-Phi(ij,l)) |
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509 | F_el(ij+u_lup,l) = DePhil(ij+u_lup,l)*W_el |
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510 | W2_el = .5*le_de(ij+u_lup) * & |
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511 | ( W(ij,l)*w_il(ij,l) + W(ij+t_lup,l)*w_il(ij+t_lup,l) ) |
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512 | V_EL(ij+u_lup) = .5*le_de(ij+u_lup)*( u(ij+u_lup,kup) + u(ij+u_lup,kdown)) ! checked |
---|
513 | G_EL(ij+u_lup) = V_EL(ij+u_lup)*W_el - DePhil(ij+u_lup,l)*W2_el |
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514 | ! Compute on edge 'ldown' |
---|
515 | W_el = .5*( W(ij,l)+W(ij+t_ldown,l) ) |
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516 | DePhil(ij+u_ldown,l) = ne_ldown*(Phi(ij+t_ldown,l)-Phi(ij,l)) |
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517 | F_el(ij+u_ldown,l) = DePhil(ij+u_ldown,l)*W_el |
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518 | W2_el = .5*le_de(ij+u_ldown) * & |
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519 | ( W(ij,l)*w_il(ij,l) + W(ij+t_ldown,l)*w_il(ij+t_ldown,l) ) |
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520 | V_EL(ij+u_ldown) = .5*le_de(ij+u_ldown)*( u(ij+u_ldown,kup) + u(ij+u_ldown,kdown)) ! checked |
---|
521 | G_EL(ij+u_ldown) = V_EL(ij+u_ldown)*W_el - DePhil(ij+u_ldown,l)*W2_el |
---|
522 | END DO |
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523 | ! compute GradPhi2, dPhi, dW |
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524 | DO ij=ij_begin_ext, ij_end_ext |
---|
525 | gradPhi2(ij,l) = & |
---|
526 | 1/(2*Ai(ij))*(le_de(ij+u_right)*DePhil(ij+u_right,l)**2 + & |
---|
527 | le_de(ij+u_rup)*DePhil(ij+u_rup,l)**2 + & |
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528 | le_de(ij+u_lup)*DePhil(ij+u_lup,l)**2 + & |
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529 | le_de(ij+u_left)*DePhil(ij+u_left,l)**2 + & |
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530 | le_de(ij+u_ldown)*DePhil(ij+u_ldown,l)**2 + & |
---|
531 | le_de(ij+u_rdown)*DePhil(ij+u_rdown,l)**2 ) |
---|
532 | |
---|
533 | dPhi(ij,l) = gradPhi2(ij,l)*w_il(ij,l) -1/(2*Ai(ij))* & |
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534 | ( DePhil(ij+u_right,l)*V_EL(ij+u_right) + & ! -v.gradPhi, |
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535 | DePhil(ij+u_rup,l)*V_EL(ij+u_rup) + & ! v_el already has le_de |
---|
536 | DePhil(ij+u_lup,l)*V_EL(ij+u_lup) + & |
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537 | DePhil(ij+u_left,l)*V_EL(ij+u_left) + & |
---|
538 | DePhil(ij+u_ldown,l)*V_EL(ij+u_ldown) + & |
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539 | DePhil(ij+u_rdown,l)*V_EL(ij+u_rdown) ) |
---|
540 | |
---|
541 | dW(ij,l) = -1./Ai(ij)*( & ! -div(G_el), |
---|
542 | ne_right*G_EL(ij+u_right) + & ! G_el already has le_de |
---|
543 | ne_rup*G_EL(ij+u_rup) + & |
---|
544 | ne_lup*G_EL(ij+u_lup) + & |
---|
545 | ne_left*G_EL(ij+u_left) + & |
---|
546 | ne_ldown*G_EL(ij+u_ldown) + & |
---|
547 | ne_rdown*G_EL(ij+u_rdown)) |
---|
548 | END DO |
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549 | END DO |
---|
550 | |
---|
551 | DO l=ll_begin, ll_end ! compute on k levels (layers) |
---|
552 | ! Compute berni at scalar points |
---|
553 | DO ij=ij_begin_ext, ij_end_ext |
---|
554 | BERNI(ij) = & |
---|
555 | 1/(4*Ai(ij))*( & |
---|
556 | le_de(ij+u_right)*u(ij+u_right,l)**2 + & |
---|
557 | le_de(ij+u_rup)*u(ij+u_rup,l)**2 + & |
---|
558 | le_de(ij+u_lup)*u(ij+u_lup,l)**2 + & |
---|
559 | le_de(ij+u_left)*u(ij+u_left,l)**2 + & |
---|
560 | le_de(ij+u_ldown)*u(ij+u_ldown,l)**2 + & |
---|
561 | le_de(ij+u_rdown)*u(ij+u_rdown,l)**2 ) & |
---|
562 | - .25*( gradPhi2(ij,l) *w_il(ij,l)**2 + & |
---|
563 | gradPhi2(ij,l+1)*w_il(ij,l+1)**2 ) |
---|
564 | END DO |
---|
565 | ! Compute mass flux and grad(berni) at edges |
---|
566 | DO ij=ij_begin_ext, ij_end_ext |
---|
567 | ! Compute on edge 'right' |
---|
568 | uu_right = 0.5*(rhodz(ij,l)+rhodz(ij+t_right,l))*u(ij+u_right,l) & |
---|
569 | -0.5*(F_el(ij+u_right,l)+F_el(ij+u_right,l+1)) |
---|
570 | hflux(ij+u_right,l) = uu_right*le_de(ij+u_right) |
---|
571 | du(ij+u_right,l) = ne_right*(BERNI(ij)-BERNI(ij+t_right)) |
---|
572 | ! Compute on edge 'lup' |
---|
573 | uu_lup = 0.5*(rhodz(ij,l)+rhodz(ij+t_lup,l))*u(ij+u_lup,l) & |
---|
574 | -0.5*(F_el(ij+u_lup,l)+F_el(ij+u_lup,l+1)) |
---|
575 | hflux(ij+u_lup,l) = uu_lup*le_de(ij+u_lup) |
---|
576 | du(ij+u_lup,l) = ne_lup*(BERNI(ij)-BERNI(ij+t_lup)) |
---|
577 | ! Compute on edge 'ldown' |
---|
578 | uu_ldown = 0.5*(rhodz(ij,l)+rhodz(ij+t_ldown,l))*u(ij+u_ldown,l) & |
---|
579 | -0.5*(F_el(ij+u_ldown,l)+F_el(ij+u_ldown,l+1)) |
---|
580 | hflux(ij+u_ldown,l) = uu_ldown*le_de(ij+u_ldown) |
---|
581 | du(ij+u_ldown,l) = ne_ldown*(BERNI(ij)-BERNI(ij+t_ldown)) |
---|
582 | END DO |
---|
583 | END DO |
---|
584 | |
---|
585 | #undef V_EL |
---|
586 | #undef G_EL |
---|
587 | #undef BERNI |
---|
588 | |
---|
589 | END IF ! dysl |
---|
590 | |
---|
591 | CALL trace_end("compute_caldyn_slow_NH") |
---|
592 | |
---|
593 | END SUBROUTINE compute_caldyn_slow_NH |
---|
594 | |
---|
595 | END MODULE caldyn_kernels_hevi_mod |
---|