1 | MODULE euler_scheme_mod |
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2 | USE field_mod |
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3 | USE abort_mod |
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4 | IMPLICIT NONE |
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5 | PRIVATE |
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6 | |
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7 | TYPE(t_field),POINTER,SAVE,PUBLIC :: f_geopot(:), f_q(:), & |
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8 | f_rhodz(:), f_mass(:), f_massm1(:), f_massm2(:), f_dmass(:), & ! current and previous time steps + tendency of mass, |
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9 | f_phis(:), f_ps(:),f_psm1(:), f_psm2(:), f_dps(:), & ! column-integrated mass |
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10 | f_u(:),f_um1(:),f_um2(:), f_du(:), f_W(:), & ! 'horizontal' and vertical (NH) momentum |
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11 | f_theta_rhodz(:),f_theta_rhodzm1(:),f_theta_rhodzm2(:), f_dtheta_rhodz(:), & ! mass-weighted theta/entropy |
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12 | f_hflux(:), f_wflux(:), f_hfluxt(:), f_wfluxt(:), & ! accumulated mass fluxes |
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13 | f_du_slow(:,:), f_du_fast(:,:), & ! slow/fast trend arrays |
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14 | f_dmass_slow(:,:), f_dps_slow(:,:), f_dtheta_rhodz_slow(:,:), &! for HEVI time scheme |
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15 | f_dPhi_slow(:,:), f_dPhi_fast(:,:), & ! geopotential tendencies (NH) |
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16 | f_dW_slow(:,:), f_dW_fast(:,:) ! vertical momentum tendencies (NH) |
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17 | |
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18 | INTEGER, PARAMETER, PUBLIC :: explicit=1, hevi=2, euler=1, rk4=2, mlf=3, rk25=4, ark23=6, ark33=7 |
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19 | |
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20 | INTEGER,SAVE, PUBLIC :: nb_stage, matsuno_period, scheme, scheme_family |
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21 | !$OMP THREADPRIVATE(nb_stage, matsuno_period, scheme, scheme_family) |
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22 | |
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23 | PUBLIC :: euler_scheme, accumulate_fluxes, legacy_to_DEC, DEC_to_legacy |
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24 | CONTAINS |
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25 | |
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26 | SUBROUTINE Euler_scheme(with_dps,fluxt_zero) |
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27 | USE icosa |
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28 | USE disvert_mod |
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29 | USE omp_para |
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30 | USE trace |
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31 | LOGICAL :: with_dps |
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32 | LOGICAL, OPTIONAL :: fluxt_zero(ndomain) ! set to .TRUE. to start accumulating fluxes in time |
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33 | REAL(rstd),POINTER :: ps(:), dps(:) |
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34 | REAL(rstd),POINTER :: u(:,:) , du(:,:) |
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35 | REAL(rstd),POINTER :: mass(:,:), dmass(:,:) |
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36 | REAL(rstd),POINTER :: theta_rhodz(:,:,:), dtheta_rhodz(:,:,:) |
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37 | REAL(rstd),POINTER :: hflux(:,:),wflux(:,:),hfluxt(:,:),wfluxt(:,:) |
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38 | INTEGER :: ind |
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39 | INTEGER :: ij,l |
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40 | CALL trace_start("Euler_scheme") |
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41 | |
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42 | DO ind=1,ndomain |
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43 | IF (.NOT. assigned_domain(ind)) CYCLE |
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44 | CALL swap_dimensions(ind) |
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45 | CALL swap_geometry(ind) |
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46 | |
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47 | IF(with_dps) THEN ! update ps/mass |
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48 | CALL abort_acc("Euler_scheme/with_dps") |
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49 | IF(caldyn_eta==eta_mass) THEN ! update ps |
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50 | ps=f_ps(ind) ; dps=f_dps(ind) ; |
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51 | IF (is_omp_first_level) THEN |
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52 | !DIR$ SIMD |
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53 | DO ij=ij_begin,ij_end |
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54 | ps(ij)=ps(ij)+dt*dps(ij) |
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55 | ENDDO |
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56 | ENDIF |
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57 | ELSE ! update mass |
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58 | mass=f_mass(ind) ; dmass=f_dmass(ind) ; |
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59 | DO l=ll_begin,ll_end |
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60 | !DIR$ SIMD |
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61 | DO ij=ij_begin,ij_end |
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62 | mass(ij,l)=mass(ij,l)+dt*dmass(ij,l) |
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63 | ENDDO |
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64 | END DO |
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65 | END IF |
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66 | |
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67 | hflux=f_hflux(ind); hfluxt=f_hfluxt(ind) |
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68 | wflux=f_wflux(ind); wfluxt=f_wfluxt(ind) |
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69 | CALL accumulate_fluxes(hflux,wflux,hfluxt,wfluxt,dt,fluxt_zero(ind)) |
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70 | END IF ! update ps/mass |
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71 | |
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72 | u=f_u(ind) ; theta_rhodz=f_theta_rhodz(ind) |
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73 | du=f_du(ind) ; dtheta_rhodz=f_dtheta_rhodz(ind) |
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74 | |
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75 | CALL compute_euler_scheme(u, du, theta_rhodz, dtheta_rhodz) |
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76 | ENDDO |
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77 | |
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78 | CALL trace_end("Euler_scheme") |
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79 | |
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80 | CONTAINS |
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81 | |
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82 | SUBROUTINE compute_euler_scheme(u, du, theta_rhodz, dtheta_rhodz) |
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83 | REAL(rstd),INTENT(INOUT) :: u(iim*3*jjm,llm) |
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84 | REAL(rstd),INTENT(IN) :: du(iim*3*jjm,llm) |
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85 | REAL(rstd),INTENT(INOUT) :: theta_rhodz(iim*jjm,llm,nqdyn) |
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86 | REAL(rstd),INTENT(IN) :: dtheta_rhodz(iim*jjm,llm,nqdyn) |
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87 | |
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88 | !$acc data present(theta_rhodz(:,:,:), u(:,:),du(:,:), dtheta_rhodz(:,:,:)) async |
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89 | |
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90 | !$acc parallel loop async |
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91 | DO l=ll_begin,ll_end |
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92 | !$acc loop |
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93 | !DIR$ SIMD |
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94 | DO ij=ij_begin,ij_end |
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95 | u(ij+u_right,l)=u(ij+u_right,l)+dt*du(ij+u_right,l) |
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96 | u(ij+u_lup,l)=u(ij+u_lup,l)+dt*du(ij+u_lup,l) |
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97 | u(ij+u_ldown,l)=u(ij+u_ldown,l)+dt*du(ij+u_ldown,l) |
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98 | theta_rhodz(ij,l,1)=theta_rhodz(ij,l,1)+dt*dtheta_rhodz(ij,l,1) |
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99 | ENDDO |
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100 | ENDDO |
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101 | |
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102 | !$acc end data |
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103 | END SUBROUTINE compute_euler_scheme |
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104 | |
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105 | END SUBROUTINE Euler_scheme |
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106 | |
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107 | SUBROUTINE accumulate_fluxes(hflux,wflux, hfluxt,wfluxt, tau,fluxt_zero) |
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108 | USE dimensions |
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109 | USE omp_para |
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110 | USE disvert_mod |
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111 | IMPLICIT NONE |
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112 | REAL(rstd), INTENT(IN) :: hflux(3*iim*jjm,llm), wflux(iim*jjm,llm+1) |
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113 | REAL(rstd), INTENT(INOUT) :: hfluxt(3*iim*jjm,llm), wfluxt(iim*jjm,llm+1) |
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114 | REAL(rstd), INTENT(IN) :: tau |
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115 | LOGICAL, INTENT(INOUT) :: fluxt_zero |
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116 | INTEGER :: l,ij |
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117 | |
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118 | !$acc data present(hflux(:,:), wflux(:,:), hfluxt(:,:), wfluxt(:,:)) async |
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119 | |
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120 | IF(fluxt_zero) THEN |
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121 | |
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122 | fluxt_zero=.FALSE. |
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123 | !$acc parallel loop async |
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124 | DO l=ll_begin,ll_end |
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125 | !$acc loop |
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126 | !DIR$ SIMD |
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127 | DO ij=ij_begin_ext,ij_end_ext |
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128 | hfluxt(ij+u_right,l) = tau*hflux(ij+u_right,l) |
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129 | hfluxt(ij+u_lup,l) = tau*hflux(ij+u_lup,l) |
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130 | hfluxt(ij+u_ldown,l) = tau*hflux(ij+u_ldown,l) |
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131 | ENDDO |
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132 | ENDDO |
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133 | |
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134 | IF(caldyn_eta==eta_mass) THEN ! no need for vertical fluxes if eta_lag |
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135 | !$acc parallel loop async |
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136 | DO l=ll_begin,ll_endp1 |
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137 | !$acc loop |
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138 | !DIR$ SIMD |
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139 | DO ij=ij_begin,ij_end |
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140 | wfluxt(ij,l) = tau*wflux(ij,l) |
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141 | ENDDO |
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142 | ENDDO |
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143 | END IF |
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144 | |
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145 | ELSE |
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146 | !$acc parallel loop async |
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147 | DO l=ll_begin,ll_end |
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148 | !$acc loop |
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149 | !DIR$ SIMD |
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150 | DO ij=ij_begin_ext,ij_end_ext |
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151 | hfluxt(ij+u_right,l) = hfluxt(ij+u_right,l)+tau*hflux(ij+u_right,l) |
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152 | hfluxt(ij+u_lup,l) = hfluxt(ij+u_lup,l)+tau*hflux(ij+u_lup,l) |
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153 | hfluxt(ij+u_ldown,l) = hfluxt(ij+u_ldown,l)+tau*hflux(ij+u_ldown,l) |
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154 | ENDDO |
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155 | ENDDO |
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156 | |
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157 | IF(caldyn_eta==eta_mass) THEN ! no need for vertical fluxes if eta_lag |
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158 | !$acc parallel loop async |
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159 | DO l=ll_begin,ll_endp1 |
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160 | !$acc loop |
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161 | !DIR$ SIMD |
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162 | DO ij=ij_begin,ij_end |
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163 | wfluxt(ij,l) = wfluxt(ij,l)+tau*wflux(ij,l) |
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164 | ENDDO |
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165 | ENDDO |
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166 | END IF |
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167 | END IF |
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168 | !$acc end data |
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169 | END SUBROUTINE accumulate_fluxes |
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170 | |
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171 | SUBROUTINE legacy_to_DEC(f_ps, f_u) |
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172 | USE icosa |
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173 | USE disvert_mod |
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174 | USE omp_para |
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175 | USE trace |
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176 | TYPE(t_field),POINTER :: f_ps(:), f_u(:) |
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177 | REAL(rstd), POINTER :: ps(:), u(:,:) |
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178 | INTEGER :: ind,ij,l |
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179 | |
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180 | CALL trace_start("legacy_to_DEC") |
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181 | |
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182 | DO ind=1,ndomain |
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183 | IF (.NOT. assigned_domain(ind)) CYCLE |
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184 | CALL swap_dimensions(ind) |
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185 | CALL swap_geometry(ind) |
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186 | |
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187 | IF(caldyn_eta==eta_mass .AND. is_omp_first_level) THEN ! update ps |
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188 | ps=f_ps(ind) |
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189 | !$acc parallel loop async default(present) |
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190 | !DIR$ SIMD |
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191 | DO ij=ij_begin,ij_end |
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192 | ps(ij)=(ps(ij)-ptop)/g ! convert ps to column-integrated mass |
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193 | ENDDO |
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194 | END IF |
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195 | |
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196 | u=f_u(ind) |
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197 | !$acc parallel loop async default(present) |
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198 | DO l=ll_begin,ll_end |
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199 | !$acc loop |
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200 | !DIR$ SIMD |
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201 | DO ij=ij_begin,ij_end |
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202 | u(ij+u_right,l)=u(ij+u_right,l)*de(ij+u_right) |
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203 | u(ij+u_lup,l)=u(ij+u_lup,l)*de(ij+u_lup) |
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204 | u(ij+u_ldown,l)=u(ij+u_ldown,l)*de(ij+u_ldown) |
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205 | ENDDO |
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206 | ENDDO |
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207 | ENDDO |
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208 | |
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209 | CALL trace_end("legacy_to_DEC") |
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210 | |
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211 | END SUBROUTINE Legacy_to_DEC |
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212 | |
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213 | SUBROUTINE DEC_to_legacy(f_ps, f_u) |
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214 | USE icosa |
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215 | USE disvert_mod |
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216 | USE omp_para |
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217 | USE trace |
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218 | TYPE(t_field),POINTER :: f_ps(:), f_u(:) |
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219 | REAL(rstd), POINTER :: ps(:), u(:,:) |
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220 | INTEGER :: ind,ij,l |
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221 | CALL trace_start("legacy_to_DEC") |
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222 | |
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223 | DO ind=1,ndomain |
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224 | IF (.NOT. assigned_domain(ind)) CYCLE |
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225 | CALL swap_dimensions(ind) |
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226 | CALL swap_geometry(ind) |
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227 | |
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228 | IF(caldyn_eta==eta_mass .AND. is_omp_first_level) THEN |
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229 | ps=f_ps(ind) |
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230 | !$acc parallel loop async default(present) |
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231 | !DIR$ SIMD |
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232 | DO ij=ij_begin,ij_end |
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233 | ps(ij)=ptop+ps(ij)*g ! convert column-integrated mass to ps |
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234 | ENDDO |
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235 | ENDIF |
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236 | |
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237 | u=f_u(ind) |
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238 | !$acc parallel loop async default(present) |
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239 | DO l=ll_begin,ll_end |
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240 | !$acc loop |
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241 | !DIR$ SIMD |
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242 | DO ij=ij_begin,ij_end |
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243 | u(ij+u_right,l)=u(ij+u_right,l)/de(ij+u_right) |
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244 | u(ij+u_lup,l)=u(ij+u_lup,l)/de(ij+u_lup) |
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245 | u(ij+u_ldown,l)=u(ij+u_ldown,l)/de(ij+u_ldown) |
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246 | ENDDO |
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247 | ENDDO |
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248 | ENDDO |
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249 | |
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250 | CALL trace_end("DEC_to_legacy") |
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251 | END SUBROUTINE DEC_to_legacy |
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252 | |
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253 | END MODULE euler_scheme_mod |
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