[3331] | 1 | MODULE step |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE step *** |
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| 4 | !! Time-stepping : manager of the ocean, tracer and ice time stepping |
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| 5 | !! version for standalone surface scheme |
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| 6 | !!====================================================================== |
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| 7 | !! History : OPA ! 1991-03 (G. Madec) Original code |
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[3362] | 8 | !! . ! . |
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| 9 | !! . ! . |
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| 10 | !! NEMO 3.5 ! 2012-03 (S. Alderson) |
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[3331] | 11 | !!---------------------------------------------------------------------- |
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| 12 | |
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| 13 | !!---------------------------------------------------------------------- |
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[14227] | 14 | !! stp : OCE system time-stepping |
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[3331] | 15 | !!---------------------------------------------------------------------- |
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| 16 | USE oce ! ocean dynamics and tracers variables |
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| 17 | USE dom_oce ! ocean space and time domain variables |
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| 18 | USE daymod ! calendar (day routine) |
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[6140] | 19 | USE sbc_oce ! surface boundary condition: fields |
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[3331] | 20 | USE sbcmod ! surface boundary condition (sbc routine) |
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| 21 | USE sbcrnf ! surface boundary condition: runoff variables |
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[6140] | 22 | USE sbccpl ! surface boundary condition: coupled interface |
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[3331] | 23 | USE eosbn2 ! equation of state (eos_bn2 routine) |
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| 24 | USE diawri ! Standard run outputs (dia_wri routine) |
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[7646] | 25 | USE bdy_oce , ONLY: ln_bdy |
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[9019] | 26 | USE bdydta ! mandatory for sea-ice |
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[6140] | 27 | USE stpctl ! time stepping control (stp_ctl routine) |
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| 28 | ! |
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| 29 | USE in_out_manager ! I/O manager |
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| 30 | USE prtctl ! Print control (prt_ctl routine) |
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| 31 | USE iom ! |
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| 32 | USE lbclnk ! |
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| 33 | USE timing ! Timing |
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[14239] | 34 | #if defined key_xios |
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[6140] | 35 | USE xios |
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| 36 | #endif |
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[5510] | 37 | |
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[7646] | 38 | #if defined key_agrif |
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[9019] | 39 | USE agrif_oce, ONLY: lk_agrif_debug |
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[9570] | 40 | #if defined key_si3 |
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[9596] | 41 | USE agrif_ice_update |
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[7646] | 42 | #endif |
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[9510] | 43 | #endif |
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[7646] | 44 | |
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[3331] | 45 | IMPLICIT NONE |
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| 46 | PRIVATE |
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| 47 | |
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[6140] | 48 | PUBLIC stp ! called by nemogcm.F90 |
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[3331] | 49 | |
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| 50 | !!---------------------------------------------------------------------- |
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[12377] | 51 | !! time level indices |
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| 52 | !!---------------------------------------------------------------------- |
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| 53 | INTEGER, PUBLIC :: Nbb, Nnn, Naa, Nrhs !! used by nemo_init |
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| 54 | !!---------------------------------------------------------------------- |
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[10068] | 55 | !! NEMO/SAS 4.0 , NEMO Consortium (2018) |
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[5215] | 56 | !! $Id$ |
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[10068] | 57 | !! Software governed by the CeCILL license (see ./LICENSE) |
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[3331] | 58 | !!---------------------------------------------------------------------- |
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| 59 | CONTAINS |
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| 60 | |
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| 61 | #if defined key_agrif |
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[7761] | 62 | RECURSIVE SUBROUTINE stp( ) |
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[3331] | 63 | INTEGER :: kstp ! ocean time-step index |
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| 64 | #else |
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| 65 | SUBROUTINE stp( kstp ) |
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| 66 | INTEGER, INTENT(in) :: kstp ! ocean time-step index |
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| 67 | #endif |
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| 68 | !!---------------------------------------------------------------------- |
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| 69 | !! *** ROUTINE stp *** |
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| 70 | !! |
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[3358] | 71 | !! ** Purpose : - Time stepping of SBC (surface boundary) |
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[3331] | 72 | !! |
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| 73 | !! ** Method : -1- Update forcings and data |
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[3358] | 74 | !! -2- Outputs and diagnostics |
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[3331] | 75 | !!---------------------------------------------------------------------- |
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| 76 | |
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| 77 | #if defined key_agrif |
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[12933] | 78 | IF( nstop > 0 ) RETURN ! avoid to go further if an error was detected during previous time step (child grid) |
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[3331] | 79 | kstp = nit000 + Agrif_Nb_Step() |
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[12377] | 80 | Kbb_a = Nbb; Kmm_a = Nnn; Krhs_a = Nrhs ! agrif_oce module copies of time level indices |
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[12933] | 81 | IF( lk_agrif_debug ) THEN |
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| 82 | IF( Agrif_Root() .and. lwp) WRITE(*,*) '---' |
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| 83 | IF(lwp) WRITE(*,*) 'Grid Number', Agrif_Fixed(),' time step ', kstp, 'int tstep', Agrif_NbStepint() |
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[7646] | 84 | ENDIF |
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[12933] | 85 | IF( kstp == nit000 + 1 ) lk_agrif_fstep = .FALSE. |
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[14239] | 86 | # if defined key_xios |
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[5407] | 87 | IF( Agrif_Nbstepint() == 0 ) CALL iom_swap( cxios_context ) |
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[3331] | 88 | # endif |
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| 89 | #endif |
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[5407] | 90 | IF( kstp == nit000 ) CALL iom_init( cxios_context ) ! iom_put initialization (must be done after nemo_init for AGRIF+XIOS+OASIS) |
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[13970] | 91 | CALL iom_setkt( kstp - nit000 + 1, cxios_context ) ! tell iom we are at time step kstp |
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| 92 | IF((kstp == nitrst) .AND. lwxios) THEN |
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| 93 | CALL iom_swap( cw_ocerst_cxt ) |
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| 94 | CALL iom_init_closedef(cw_ocerst_cxt) |
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| 95 | CALL iom_setkt( kstp - nit000 + 1, cw_ocerst_cxt ) |
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| 96 | #if defined key_top |
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| 97 | CALL iom_swap( cw_toprst_cxt ) |
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| 98 | CALL iom_init_closedef(cw_toprst_cxt) |
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| 99 | CALL iom_setkt( kstp - nit000 + 1, cw_toprst_cxt ) |
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| 100 | #endif |
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| 101 | ENDIF |
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[3331] | 102 | IF( kstp /= nit000 ) CALL day( kstp ) ! Calendar (day was already called at nit000 in day_init) |
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| 103 | |
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[13970] | 104 | #if defined key_si3 |
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| 105 | IF(((kstp + nn_fsbc - 1) == nitrst) .AND. lwxios) THEN |
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| 106 | CALL iom_swap( cw_icerst_cxt ) |
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| 107 | CALL iom_init_closedef(cw_icerst_cxt) |
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| 108 | CALL iom_setkt( kstp - nit000 + 1, cw_icerst_cxt ) |
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| 109 | ENDIF |
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| 110 | #endif |
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| 111 | |
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[9019] | 112 | ! ==> clem: open boundaries is mandatory for sea-ice because ice BDY is not decoupled from |
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[14227] | 113 | ! the environment of ocean BDY. Therefore bdy is called in both OCE and SAS modules. |
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[5510] | 114 | ! From SAS: ocean bdy data are wrong (but we do not care) and ice bdy data are OK. |
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| 115 | ! This is not clean and should be changed in the future. |
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| 116 | ! ==> |
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[12377] | 117 | IF( ln_bdy ) CALL bdy_dta( kstp, Nnn ) ! update dynamic & tracer data at open boundaries |
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| 118 | CALL sbc ( kstp, Nbb, Nnn ) ! Sea Boundary Condition (including sea-ice) |
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[3331] | 119 | |
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[12377] | 120 | CALL dia_wri( kstp, Nnn ) ! ocean model: outputs |
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[3331] | 121 | |
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[7646] | 122 | #if defined key_agrif |
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| 123 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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[12650] | 124 | ! AGRIF recursive integration |
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[7646] | 125 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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[12933] | 126 | CALL Agrif_Integrate_ChildGrids( stp ) |
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[7646] | 127 | |
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[12933] | 128 | #endif |
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[7646] | 129 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 130 | ! Control |
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| 131 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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[12933] | 132 | CALL stp_ctl( kstp, Nnn ) |
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| 133 | |
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[12650] | 134 | #if defined key_agrif |
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| 135 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 136 | ! AGRIF update |
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| 137 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 138 | IF( Agrif_NbStepint() == 0 .AND. nstop == 0 ) THEN ! AGRIF Update from zoom N to zoom 1 then to Parent |
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| 139 | #if defined key_si3 |
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| 140 | CALL Agrif_Update_ice( ) ! update sea-ice |
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| 141 | #endif |
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| 142 | ENDIF |
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[12933] | 143 | |
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[12650] | 144 | #endif |
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| 145 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 146 | ! File manipulation at the end of the first time step |
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| 147 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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[13970] | 148 | IF( kstp == nit000 ) THEN |
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| 149 | CALL iom_close( numror ) ! close input ocean restart file |
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| 150 | IF( lrxios ) CALL iom_context_finalize( cr_ocerst_cxt ) |
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| 151 | ENDIF |
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[7646] | 152 | |
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[5407] | 153 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 154 | ! Coupled mode |
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| 155 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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[12933] | 156 | IF( lk_oasis .AND. nstop == 0 ) CALL sbc_cpl_snd( kstp, Nbb, Nnn ) ! coupled mode : field exchanges if OASIS-coupled ice |
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[5407] | 157 | |
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[14239] | 158 | #if defined key_xios |
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[9367] | 159 | IF( kstp == nitrst ) THEN |
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| 160 | IF(.NOT.lwxios) THEN |
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| 161 | CALL iom_close( numrow ) |
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| 162 | ELSE |
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[13970] | 163 | CALL iom_context_finalize( cw_ocerst_cxt ) |
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| 164 | iom_file(numrow)%nfid = 0 |
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| 165 | numrow = 0 |
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[9367] | 166 | ENDIF |
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| 167 | lrst_oce = .FALSE. |
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| 168 | ENDIF |
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[12933] | 169 | IF( kstp == nitend .OR. nstop > 0 ) THEN |
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| 170 | CALL iom_context_finalize( cxios_context ) ! needed for XIOS+AGRIF |
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[5407] | 171 | ENDIF |
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[3769] | 172 | #endif |
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[3331] | 173 | ! |
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[9019] | 174 | IF( ln_timing .AND. kstp == nit000 ) CALL timing_reset |
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[3331] | 175 | ! |
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| 176 | END SUBROUTINE stp |
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| 177 | |
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| 178 | !!====================================================================== |
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| 179 | END MODULE step |
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