Changeset 859 for codes/icosagcm/devel/src
- Timestamp:
- 05/07/19 01:09:27 (5 years ago)
- Location:
- codes/icosagcm/devel/src/dynamics
- Files:
-
- 1 added
- 3 edited
Legend:
- Unmodified
- Added
- Removed
-
codes/icosagcm/devel/src/dynamics/caldyn_hevi.f90
r854 r859 12 12 USE compute_caldyn_solver_mod, ONLY : compute_caldyn_solver 13 13 USE compute_caldyn_fast_mod, ONLY : compute_caldyn_fast 14 USE compute_NH_geopot_mod, ONLY : compute_NH_geopot 14 15 IMPLICIT NONE 15 16 PRIVATE -
codes/icosagcm/devel/src/dynamics/caldyn_kernels_hevi.F90
r854 r859 9 9 PRIVATE 10 10 11 REAL(rstd), PARAMETER :: pbot=1e5, rho_bot=1e612 13 LOGICAL, SAVE :: debug_hevi_solver = .FALSE.14 15 PUBLIC :: compute_NH_geopot16 11 17 12 CONTAINS 18 13 19 SUBROUTINE compute_NH_geopot(tau, phis, m_ik, m_il, theta, W_il, Phi_il)20 REAL(rstd),INTENT(IN) :: tau ! solve Phi-tau*dPhi/dt = Phi_rhs21 REAL(rstd),INTENT(IN) :: phis(iim*jjm)22 REAL(rstd),INTENT(IN) :: m_ik(iim*jjm,llm)23 REAL(rstd),INTENT(IN) :: m_il(iim*jjm,llm+1)24 REAL(rstd),INTENT(IN) :: theta(iim*jjm,llm)25 REAL(rstd),INTENT(IN) :: W_il(iim*jjm,llm+1) ! vertical momentum26 REAL(rstd),INTENT(INOUT) :: Phi_il(iim*jjm,llm+1) ! geopotential27 28 REAL(rstd) :: Phi_star_il(iim*jjm,llm+1)29 REAL(rstd) :: p_ik(iim*jjm,llm) ! pressure30 REAL(rstd) :: R_il(iim*jjm,llm+1) ! rhs of tridiag problem31 REAL(rstd) :: x_il(iim*jjm,llm+1) ! solution of tridiag problem32 REAL(rstd) :: A_ik(iim*jjm,llm) ! off-diagonal coefficients of tridiag problem33 REAL(rstd) :: B_il(iim*jjm,llm+1) ! diagonal coefficients of tridiag problem34 REAL(rstd) :: C_ik(iim*jjm,llm) ! Thomas algorithm35 REAL(rstd) :: D_il(iim*jjm,llm+1) ! Thomas algorithm36 REAL(rstd) :: gamma, rho_ij, X_ij, Y_ij37 REAL(rstd) :: wil, tau2_g, g2, gm2, ml_g2, c2_mik, vreff38 39 INTEGER :: iter, ij, l, ij_omp_begin_ext, ij_omp_end_ext40 41 CALL distrib_level(ij_begin_ext,ij_end_ext, ij_omp_begin_ext,ij_omp_end_ext)42 43 IF(dysl) THEN44 #define PHI_BOT(ij) phis(ij)45 #include "../kernels_hex/compute_NH_geopot.k90"46 #undef PHI_BOT47 ELSE48 ! FIXME : vertical OpenMP parallelism will not work49 50 tau2_g=tau*tau/g51 g2=g*g52 gm2 = g**-253 gamma = 1./(1.-kappa)54 55 ! compute Phi_star56 DO l=1,llm+157 !DIR$ SIMD58 DO ij=ij_begin_ext,ij_end_ext59 Phi_star_il(ij,l) = Phi_il(ij,l) + tau*g2*(W_il(ij,l)/m_il(ij,l)-tau)60 ENDDO61 ENDDO62 63 ! Newton-Raphson iteration : Phi_il contains current guess value64 DO iter=1,5 ! 2 iterations should be enough65 66 ! Compute pressure, A_ik67 DO l=1,llm68 !DIR$ SIMD69 DO ij=ij_begin_ext,ij_end_ext70 rho_ij = (g*m_ik(ij,l))/(Phi_il(ij,l+1)-Phi_il(ij,l))71 X_ij = (cpp/preff)*kappa*theta(ij,l)*rho_ij72 p_ik(ij,l) = preff*(X_ij**gamma)73 c2_mik = gamma*p_ik(ij,l)/(rho_ij*m_ik(ij,l)) ! c^2 = gamma*R*T = gamma*p/rho74 A_ik(ij,l) = c2_mik*(tau/g*rho_ij)**275 ENDDO76 ENDDO77 78 ! Compute residual, B_il79 ! bottom interface l=180 !DIR$ SIMD81 DO ij=ij_begin_ext,ij_end_ext82 ml_g2 = gm2*m_il(ij,1)83 B_il(ij,1) = A_ik(ij,1) + ml_g2 + tau2_g*rho_bot84 R_il(ij,1) = ml_g2*( Phi_il(ij,1)-Phi_star_il(ij,1)) &85 + tau2_g*( p_ik(ij,1)-pbot+rho_bot*(Phi_il(ij,1)-phis(ij)) )86 ENDDO87 ! inner interfaces88 DO l=2,llm89 !DIR$ SIMD90 DO ij=ij_begin_ext,ij_end_ext91 ml_g2 = gm2*m_il(ij,l)92 B_il(ij,l) = A_ik(ij,l)+A_ik(ij,l-1) + ml_g293 R_il(ij,l) = ml_g2*( Phi_il(ij,l)-Phi_star_il(ij,l)) &94 + tau2_g*(p_ik(ij,l)-p_ik(ij,l-1))95 ! consistency check : if Wil=0 and initial state is in hydrostatic balance96 ! then Phi_star_il(ij,l) = Phi_il(ij,l) - tau^2*g^297 ! and residual = tau^2*(ml+(1/g)dl_pi)=098 ENDDO99 ENDDO100 ! top interface l=llm+1101 !DIR$ SIMD102 DO ij=ij_begin_ext,ij_end_ext103 ml_g2 = gm2*m_il(ij,llm+1)104 B_il(ij,llm+1) = A_ik(ij,llm) + ml_g2105 R_il(ij,llm+1) = ml_g2*( Phi_il(ij,llm+1)-Phi_star_il(ij,llm+1)) &106 + tau2_g*( ptop-p_ik(ij,llm) )107 ENDDO108 109 ! FIXME later110 ! the lines below modify the tridiag problem111 ! for flat, rigid boundary conditions at top and bottom :112 ! zero out A(1), A(llm), R(1), R(llm+1)113 ! => x(l)=0 at l=1,llm+1114 DO ij=ij_begin_ext,ij_end_ext115 A_ik(ij,1) = 0.116 A_ik(ij,llm) = 0.117 R_il(ij,1) = 0.118 R_il(ij,llm+1) = 0.119 ENDDO120 121 IF(debug_hevi_solver) THEN ! print Linf(residual)122 PRINT *, '[hevi_solver] R,p', iter, MAXVAL(ABS(R_il)), MAXVAL(p_ik)123 END IF124 125 ! Solve -A(l-1)x(l-1) + B(l)x(l) - A(l)x(l+1) = R(l) using Thomas algorithm126 ! Forward sweep :127 ! C(0)=0, C(l) = -A(l) / (B(l)+A(l-1)C(l-1)),128 ! D(0)=0, D(l) = (R(l)+A(l-1)D(l-1)) / (B(l)+A(l-1)C(l-1))129 ! bottom interface l=1130 !DIR$ SIMD131 DO ij=ij_begin_ext,ij_end_ext132 X_ij = 1./B_il(ij,1)133 C_ik(ij,1) = -A_ik(ij,1) * X_ij134 D_il(ij,1) = R_il(ij,1) * X_ij135 ENDDO136 ! inner interfaces/layers137 DO l=2,llm138 !DIR$ SIMD139 DO ij=ij_begin_ext,ij_end_ext140 X_ij = 1./(B_il(ij,l) + A_ik(ij,l-1)*C_ik(ij,l-1))141 C_ik(ij,l) = -A_ik(ij,l) * X_ij142 D_il(ij,l) = (R_il(ij,l)+A_ik(ij,l-1)*D_il(ij,l-1)) * X_ij143 ENDDO144 ENDDO145 ! top interface l=llm+1146 !DIR$ SIMD147 DO ij=ij_begin_ext,ij_end_ext148 X_ij = 1./(B_il(ij,llm+1) + A_ik(ij,llm)*C_ik(ij,llm))149 D_il(ij,llm+1) = (R_il(ij,llm+1)+A_ik(ij,llm)*D_il(ij,llm)) * X_ij150 ENDDO151 152 ! Back substitution :153 ! x(i) = D(i)-C(i)x(i+1), x(N+1)=0154 ! + Newton-Raphson update155 x_il=0. ! FIXME156 ! top interface l=llm+1157 !DIR$ SIMD158 DO ij=ij_begin_ext,ij_end_ext159 x_il(ij,llm+1) = D_il(ij,llm+1)160 Phi_il(ij,llm+1) = Phi_il(ij,llm+1) - x_il(ij,llm+1)161 ENDDO162 ! lower interfaces163 DO l=llm,1,-1164 !DIR$ SIMD165 DO ij=ij_begin_ext,ij_end_ext166 x_il(ij,l) = D_il(ij,l) - C_ik(ij,l)*x_il(ij,l+1)167 Phi_il(ij,l) = Phi_il(ij,l) - x_il(ij,l)168 ENDDO169 ENDDO170 171 IF(debug_hevi_solver) THEN172 PRINT *, '[hevi_solver] A,B', iter, MAXVAL(ABS(A_ik)),MAXVAL(ABS(B_il))173 PRINT *, '[hevi_solver] C,D', iter, MAXVAL(ABS(C_ik)),MAXVAL(ABS(D_il))174 DO l=1,llm+1175 WRITE(*,'(A,I2.1,I3.2,E9.2)') '[hevi_solver] x', iter,l, MAXVAL(ABS(x_il(:,l)))176 END DO177 END IF178 179 END DO ! Newton-Raphson180 181 END IF ! dysl182 183 END SUBROUTINE compute_NH_geopot184 14 185 15 END MODULE caldyn_kernels_hevi_mod -
codes/icosagcm/devel/src/dynamics/compute_caldyn_solver.F90
r853 r859 15 15 USE disvert_mod, ONLY : ptop 16 16 USE caldyn_kernels_hevi_mod 17 USE compute_NH_geopot_mod 17 18 REAL(rstd), PARAMETER :: pbot=1e5, rho_bot=1e6 18 19 REAL(rstd),INTENT(IN) :: tau ! "solve" Phi-tau*dPhi/dt = Phi_rhs
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