| 1 | MODULE sol_oce |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE sol_oce *** |
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| 4 | !! Ocean solver : solver variables defined in memory |
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| 5 | !!===================================================================== |
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| 6 | !! |
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| 7 | !! ** Purpose : Define in memory solver variables |
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| 8 | !! |
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| 9 | !! History : |
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| 10 | !! 9.0 ! 02-11 (G. Madec) F90: Free form and module |
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| 11 | !!---------------------------------------------------------------------- |
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| 12 | !! OPA 9.0 , LOCEAN-IPSL (2005) |
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| 13 | !! $Id$ |
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| 14 | !! This software is governed by the CeCILL licence see modipsl/doc/NEMO_CeCILL.txt |
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| 15 | !!---------------------------------------------------------------------- |
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| 16 | !! * Modules used |
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| 17 | USE par_oce ! ocean parameters |
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| 18 | |
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| 19 | IMPLICIT NONE |
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| 20 | PRIVATE |
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| 21 | |
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| 22 | !!---------------------------- |
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| 23 | !! elliptic solver: SOR or PCG |
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| 24 | !! --------------------------- |
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| 25 | INTEGER , PUBLIC :: & !!: namsol elliptic solver / free surface |
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| 26 | nsolv = 1 , & !: = 1/2 type of elliptic solver |
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| 27 | nsol_arp = 0 , & !: = 0/1 absolute/relative precision convergence test |
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| 28 | nmin = 300 , & !: minimum of iterations for the SOR solver |
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| 29 | nmax = 800 , & !: maximum of iterations for the SOR solver |
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| 30 | nmod = 10 !: frequency of test for the SOR solver |
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| 31 | |
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| 32 | REAL(wp), PUBLIC :: & !!: namsol elliptic solver / free surface |
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| 33 | eps = 1.e-6_wp , & !: absolute precision of the solver |
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| 34 | resmax = 1.e-14_wp , & !: absolute precision for the SOR solver |
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| 35 | sor = 1.92_wp , & !: optimal coefficient for the SOR solver |
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| 36 | rnu = 1.0_wp !: strength of the additional force used in free surface |
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| 37 | |
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| 38 | CHARACTER(len=1), PUBLIC :: & !: |
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| 39 | c_solver_pt = 'T' !: nature of grid-points T (S) for free surface case |
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| 40 | |
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| 41 | INTEGER , PUBLIC :: & !: |
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| 42 | ncut, & !: indicator of solver convergence |
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| 43 | niter !: number of iteration done by the solver |
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| 44 | |
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| 45 | REAL(wp), PUBLIC :: & !: |
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| 46 | epsr, & !: relative precision for SOR & PCG solvers |
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| 47 | rnorme, res, & !: intermediate modulus, solver residu |
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| 48 | alph, & !: coefficient =(gcr,gcr)/(gcx,gccd) |
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| 49 | beta, & !: coefficient =(rn+1,rn+1)/(rn,rn) |
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| 50 | radd, & !: coefficient =(gccd,gcdes) |
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| 51 | rr !: coefficient =(rn,rn) |
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| 52 | |
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| 53 | REAL(wp), PUBLIC, DIMENSION(1-jpr2di:jpi+jpr2di,1-jpr2dj:jpj+jpr2dj,4) :: & !: |
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| 54 | gcp !: barotropic matrix extra-diagonal elements |
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| 55 | |
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| 56 | REAL(wp), PUBLIC, DIMENSION(1-jpr2di:jpi+jpr2di,1-jpr2dj:jpj+jpr2dj) :: & !: |
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| 57 | gcx, gcxb, & !: now, before solution of the elliptic equation |
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| 58 | gcdprc, & !: inverse diagonal preconditioning matrix |
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| 59 | gcdmat, & !: diagonal preconditioning matrix |
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| 60 | gcb, & !: second member of the barotropic linear system |
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| 61 | gcr, & !: residu =b-a.x |
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| 62 | gcdes, & !: vector descente |
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| 63 | gccd !: vector such that ca.gccd=a.d (ca-1=gcdprc) |
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| 64 | |
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| 65 | #if defined key_agrif |
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| 66 | REAL(wp), DIMENSION(jpi,jpj) :: laplacu, laplacv |
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| 67 | #endif |
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| 68 | |
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| 69 | !!---------------------------------------------------------------------- |
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| 70 | END MODULE sol_oce |
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