[853] | 1 | MODULE compute_caldyn_solver_mod |
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| 2 | USE grid_param, ONLY : llm |
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| 3 | IMPLICIT NONE |
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| 4 | PRIVATE |
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| 5 | |
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| 6 | PUBLIC :: compute_caldyn_solver |
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| 7 | |
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| 8 | CONTAINS |
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| 9 | |
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| 10 | SUBROUTINE compute_caldyn_solver(tau,phis, rhodz,theta,pk, geopot,W, m_il,pres, dPhi,dW,du) |
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| 11 | USE icosa |
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| 12 | USE caldyn_vars_mod |
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| 13 | USE trace |
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| 14 | USE omp_para, ONLY : ll_begin, ll_end,ll_beginp1,ll_endp1 |
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| 15 | USE disvert_mod, ONLY : ptop |
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| 16 | USE caldyn_kernels_hevi_mod |
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| 17 | REAL(rstd), PARAMETER :: pbot=1e5, rho_bot=1e6 |
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| 18 | REAL(rstd),INTENT(IN) :: tau ! "solve" Phi-tau*dPhi/dt = Phi_rhs |
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| 19 | REAL(rstd),INTENT(IN) :: phis(iim*jjm) |
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| 20 | REAL(rstd),INTENT(IN) :: rhodz(iim*jjm,llm) |
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| 21 | REAL(rstd),INTENT(IN) :: theta(iim*jjm,llm,nqdyn) |
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| 22 | REAL(rstd),INTENT(OUT) :: pk(iim*jjm,llm) |
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| 23 | REAL(rstd),INTENT(INOUT) :: geopot(iim*jjm,llm+1) |
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| 24 | REAL(rstd),INTENT(INOUT) :: W(iim*jjm,llm+1) ! OUT if tau>0 |
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| 25 | REAL(rstd),INTENT(OUT) :: m_il(iim*jjm,llm+1) ! rhodz averaged to interfaces |
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| 26 | REAL(rstd),INTENT(OUT) :: pres(iim*jjm,llm) ! pressure |
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| 27 | REAL(rstd),INTENT(OUT) :: dW(iim*jjm,llm+1) |
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| 28 | REAL(rstd),INTENT(OUT) :: dPhi(iim*jjm,llm+1) |
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| 29 | REAL(rstd),INTENT(OUT) :: du(3*iim*jjm,llm) |
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| 30 | |
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| 31 | REAL(rstd) :: berni(iim*jjm,llm) ! (W/m_il)^2 |
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| 32 | REAL(rstd) :: berni1(iim*jjm) ! (W/m_il)^2 |
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| 33 | !REAL(rstd) :: gamma, rho_ij, T_ij, X_ij, Y_ij, vreff, Rd, Cvd, Rd_preff |
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| 34 | REAL(rstd) :: gamma, rho_ij, T_ij, X_ij, Y_ij, vreff, Cvd, Rd_preff |
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| 35 | INTEGER :: ij, l |
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| 36 | |
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| 37 | CALL trace_start("compute_caldyn_solver") |
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| 38 | |
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| 39 | !Rd=cpp*kappa |
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| 40 | |
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| 41 | IF(dysl) THEN |
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| 42 | |
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| 43 | !$OMP BARRIER |
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| 44 | |
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| 45 | #include "../kernels_hex/caldyn_mil.k90" |
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| 46 | IF(tau>0) THEN ! solve implicit problem for geopotential |
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| 47 | CALL compute_NH_geopot(tau,phis, rhodz, m_il, theta, W, geopot) |
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| 48 | END IF |
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| 49 | #define PHI_BOT(ij) phis(ij) |
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| 50 | #include "../kernels_hex/caldyn_solver.k90" |
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| 51 | #undef PHI_BOT |
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| 52 | !$OMP BARRIER |
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| 53 | |
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| 54 | ELSE |
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| 55 | |
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| 56 | #define BERNI(ij) berni1(ij) |
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| 57 | ! FIXME : vertical OpenMP parallelism will not work |
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| 58 | |
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| 59 | ! average m_ik to interfaces => m_il |
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| 60 | !DIR$ SIMD |
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| 61 | DO ij=ij_begin_ext,ij_end_ext |
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| 62 | m_il(ij,1) = .5*rhodz(ij,1) |
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| 63 | ENDDO |
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| 64 | DO l=2,llm |
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| 65 | !DIR$ SIMD |
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| 66 | DO ij=ij_begin_ext,ij_end_ext |
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| 67 | m_il(ij,l) = .5*(rhodz(ij,l-1)+rhodz(ij,l)) |
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| 68 | ENDDO |
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| 69 | ENDDO |
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| 70 | !DIR$ SIMD |
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| 71 | DO ij=ij_begin_ext,ij_end_ext |
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| 72 | m_il(ij,llm+1) = .5*rhodz(ij,llm) |
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| 73 | ENDDO |
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| 74 | |
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| 75 | IF(tau>0) THEN ! solve implicit problem for geopotential |
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| 76 | CALL compute_NH_geopot(tau, phis, rhodz, m_il, theta, W, geopot) |
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| 77 | END IF |
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| 78 | |
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| 79 | ! Compute pressure, stored temporarily in pk |
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| 80 | ! kappa = R/Cp |
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| 81 | ! 1-kappa = Cv/Cp |
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| 82 | ! Cp/Cv = 1/(1-kappa) |
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| 83 | gamma = 1./(1.-kappa) |
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| 84 | DO l=1,llm |
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| 85 | !DIR$ SIMD |
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| 86 | DO ij=ij_begin_ext,ij_end_ext |
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| 87 | rho_ij = (g*rhodz(ij,l))/(geopot(ij,l+1)-geopot(ij,l)) |
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| 88 | X_ij = (cpp/preff)*kappa*theta(ij,l,1)*rho_ij |
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| 89 | ! kappa.theta.rho = p/exner |
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| 90 | ! => X = (p/p0)/(exner/Cp) |
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| 91 | ! = (p/p0)^(1-kappa) |
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| 92 | pk(ij,l) = preff*(X_ij**gamma) |
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| 93 | ENDDO |
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| 94 | ENDDO |
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| 95 | |
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| 96 | ! Update W, compute tendencies |
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| 97 | DO l=2,llm |
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| 98 | !DIR$ SIMD |
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| 99 | DO ij=ij_begin_ext,ij_end_ext |
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| 100 | dW(ij,l) = (1./g)*(pk(ij,l-1)-pk(ij,l)) - m_il(ij,l) |
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| 101 | W(ij,l) = W(ij,l)+tau*dW(ij,l) ! update W |
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| 102 | dPhi(ij,l) = g*g*W(ij,l)/m_il(ij,l) |
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| 103 | ENDDO |
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| 104 | ! PRINT *,'Max dPhi', l,ij_begin,ij_end, MAXVAL(abs(dPhi(ij_begin:ij_end,l))) |
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| 105 | ! PRINT *,'Max dW', l,ij_begin,ij_end, MAXVAL(abs(dW(ij_begin:ij_end,l))) |
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| 106 | ENDDO |
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| 107 | ! Lower BC (FIXME : no orography yet !) |
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| 108 | DO ij=ij_begin,ij_end |
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| 109 | dPhi(ij,1)=0 |
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| 110 | W(ij,1)=0 |
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| 111 | dW(ij,1)=0 |
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| 112 | dPhi(ij,llm+1)=0 ! rigid lid |
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| 113 | W(ij,llm+1)=0 |
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| 114 | dW(ij,llm+1)=0 |
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| 115 | ENDDO |
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| 116 | ! Upper BC p=ptop |
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| 117 | ! DO ij=ij_omp_begin_ext,ij_omp_end_ext |
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| 118 | ! dPhi(ij,llm+1) = W(ij,llm+1)/rhodz(ij,llm) |
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| 119 | ! dW(ij,llm+1) = (1./g)*(pk(ij,llm)-ptop) - .5*rhodz(ij,llm) |
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| 120 | ! ENDDO |
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| 121 | |
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| 122 | ! Compute Exner function (needed by compute_caldyn_fast) and du=-g^2.grad(w^2) |
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| 123 | DO l=1,llm |
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| 124 | !DIR$ SIMD |
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| 125 | DO ij=ij_begin_ext,ij_end_ext |
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| 126 | pk(ij,l) = cpp*((pk(ij,l)/preff)**kappa) ! other formulae possible if exponentiation is slow |
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| 127 | BERNI(ij) = (-.25*g*g)*( & |
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| 128 | (W(ij,l)/m_il(ij,l))**2 & |
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| 129 | + (W(ij,l+1)/m_il(ij,l+1))**2 ) |
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| 130 | ENDDO |
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| 131 | DO ij=ij_begin,ij_end |
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| 132 | du(ij+u_right,l) = ne_right*(BERNI(ij)-BERNI(ij+t_right)) |
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| 133 | du(ij+u_lup,l) = ne_lup *(BERNI(ij)-BERNI(ij+t_lup)) |
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| 134 | du(ij+u_ldown,l) = ne_ldown*(BERNI(ij)-BERNI(ij+t_ldown)) |
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| 135 | ENDDO |
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| 136 | ENDDO |
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| 137 | #undef BERNI |
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| 138 | |
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| 139 | END IF ! dysl |
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| 140 | |
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| 141 | CALL trace_end("compute_caldyn_solver") |
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| 142 | |
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| 143 | END SUBROUTINE compute_caldyn_solver |
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| 144 | |
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| 145 | END MODULE compute_caldyn_solver_mod |
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