| 1 | MODULE opa |
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| 2 | !!============================================================================== |
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| 3 | !! *** MODULE opa *** |
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| 4 | !! Ocean system : OPA ocean dynamics (including on-line tracers and sea-ice) |
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| 5 | !!============================================================================== |
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| 6 | !! History : OPA ! 1990-10 (C. Levy, G. Madec) Original code |
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| 7 | !! 7.0 ! 1991-11 (M. Imbard, C. Levy, G. Madec) |
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| 8 | !! 7.1 ! 1993-03 (M. Imbard, C. Levy, G. Madec, O. Marti, M. Guyon, A. Lazar, |
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| 9 | !! P. Delecluse, C. Perigaud, G. Caniaux, B. Colot, C. Maes ) release 7.1 |
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| 10 | !! - ! 1992-06 (L.Terray) coupling implementation |
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| 11 | !! - ! 1993-11 (M.A. Filiberti) IGLOO sea-ice |
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| 12 | !! 8.0 ! 1996-03 (M. Imbard, C. Levy, G. Madec, O. Marti, M. Guyon, A. Lazar, |
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| 13 | !! P. Delecluse, L.Terray, M.A. Filiberti, J. Vialar, A.M. Treguier, M. Levy) release 8.0 |
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| 14 | !! 8.1 ! 1997-06 (M. Imbard, G. Madec) |
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| 15 | !! 8.2 ! 1999-11 (M. Imbard, H. Goosse) LIM sea-ice model |
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| 16 | !! ! 1999-12 (V. Thierry, A-M. Treguier, M. Imbard, M-A. Foujols) OPEN-MP |
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| 17 | !! ! 2000-07 (J-M Molines, M. Imbard) Open Boundary Conditions (CLIPPER) |
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| 18 | !! NEMO 1.0 ! 2002-08 (G. Madec) F90: Free form and modules |
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| 19 | !! - ! 2004-06 (R. Redler, NEC CCRLE, Germany) add OASIS[3/4] coupled interfaces |
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| 20 | !! - ! 2004-08 (C. Talandier) New trends organization |
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| 21 | !! - ! 2005-06 (C. Ethe) Add the 1D configuration possibility |
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| 22 | !! - ! 2005-11 (V. Garnier) Surface pressure gradient organization |
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| 23 | !! - ! 2006-03 (L. Debreu, C. Mazauric) Agrif implementation |
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| 24 | !! - ! 2006-04 (G. Madec, R. Benshila) Step reorganization |
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| 25 | !! - ! 2007-07 (J. Chanut, A. Sellar) Unstructured open boundaries (BDY) |
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| 26 | !! 3.2 ! 2009-08 (S. Masson) open/write in the listing file in mpp |
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| 27 | !!---------------------------------------------------------------------- |
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| 28 | |
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| 29 | !!---------------------------------------------------------------------- |
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| 30 | !! opa_model : solve ocean dynamics, tracer and/or sea-ice |
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| 31 | !! opa_init : initialization of the opa model |
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| 32 | !! opa_flg : initialisation of algorithm flag |
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| 33 | !! opa_closefile : close remaining files |
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| 34 | !!---------------------------------------------------------------------- |
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| 35 | USE oce ! dynamics and tracers variables |
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| 36 | USE dom_oce ! ocean space domain variables |
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| 37 | USE sbc_oce ! surface boundary condition: ocean |
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| 38 | USE trdmod_oce ! ocean variables trends |
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| 39 | USE domcfg ! domain configuration (dom_cfg routine) |
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| 40 | USE mppini ! shared/distributed memory setting (mpp_init routine) |
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| 41 | USE domain ! domain initialization (dom_init routine) |
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| 42 | USE obc_par ! open boundary cond. parameters |
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| 43 | USE obcini ! open boundary cond. initialization (obc_ini routine) |
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| 44 | USE bdy_par ! unstructured open boundary cond. parameters |
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| 45 | USE bdyini ! unstructured open boundary cond. initialization (bdy_init routine) |
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| 46 | USE istate ! initial state setting (istate_init routine) |
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| 47 | USE sbcmod ! surface boundary condition |
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| 48 | USE eosbn2 ! equation of state (eos_init routine) |
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| 49 | USE dynhpg ! hydrostatic pressure gradient |
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| 50 | USE ldfdyn ! lateral viscosity setting (ldfdyn_init routine) |
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| 51 | USE ldftra ! lateral diffusivity setting (ldftra_init routine) |
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| 52 | USE zdfini |
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| 53 | USE phycst ! physical constant (par_cst routine) |
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| 54 | USE trdmod ! momentum/tracers trends (trd_mod_init routine) |
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| 55 | USE diaptr ! poleward transports (dia_ptr_init routine) |
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| 56 | USE step ! OPA time-stepping (stp routine) |
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| 57 | #if defined key_oasis3 |
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| 58 | USE cpl_oasis3 ! OASIS3 coupling |
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| 59 | #elif defined key_oasis4 |
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| 60 | USE cpl_oasis4 ! OASIS4 coupling (not working) |
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| 61 | #endif |
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| 62 | USE dynspg_oce ! Control choice of surface pressure gradient schemes |
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| 63 | USE prtctl ! Print control (prt_ctl_init routine) |
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| 64 | USE c1d ! 1D configuration |
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| 65 | USE dyncor_c1d ! Coriolis factor at T-point |
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| 66 | USE step_c1d ! Time stepping loop for the 1D configuration |
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| 67 | #if defined key_top |
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| 68 | USE trcini ! passive tracer initialisation |
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| 69 | #endif |
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| 70 | |
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| 71 | USE iom |
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| 72 | USE in_out_manager ! I/O manager |
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| 73 | USE lib_mpp ! distributed memory computing |
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| 74 | #if defined key_iomput |
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| 75 | USE mod_ioclient |
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| 76 | #endif |
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| 77 | |
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| 78 | IMPLICIT NONE |
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| 79 | PRIVATE |
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| 80 | |
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| 81 | PUBLIC opa_model ! called by model.F90 |
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| 82 | PUBLIC opa_init ! needed by AGRIF |
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| 83 | |
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| 84 | CHARACTER (len=64) :: cform_aaa="( /, 'AAAAAAAA', / ) " ! flag for output listing |
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| 85 | |
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| 86 | !!---------------------------------------------------------------------- |
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| 87 | !! NEMO/OPA 3.2 , LOCEAN-IPSL (2009) |
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| 88 | !! $Id$ |
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| 89 | !! Software governed by the CeCILL licence (modipsl/doc/NEMO_CeCILL.txt) |
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| 90 | !!---------------------------------------------------------------------- |
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| 91 | |
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| 92 | CONTAINS |
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| 93 | |
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| 94 | SUBROUTINE opa_model |
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| 95 | !!---------------------------------------------------------------------- |
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| 96 | !! *** ROUTINE opa *** |
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| 97 | !! |
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| 98 | !! ** Purpose : opa solves the primitive equations on an orthogonal |
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| 99 | !! curvilinear mesh on the sphere. |
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| 100 | !! |
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| 101 | !! ** Method : - model general initialization |
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| 102 | !! - launch the time-stepping (stp routine) |
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| 103 | !! - finalize the run by closing files and communications |
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| 104 | !! |
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| 105 | !! References : Madec, Delecluse,Imbard, and Levy, 1997: internal report, IPSL. |
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| 106 | !! Madec, 2008, internal report, IPSL. |
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| 107 | !!---------------------------------------------------------------------- |
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| 108 | INTEGER :: istp ! time step index |
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| 109 | !!---------------------------------------------------------------------- |
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| 110 | |
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| 111 | #if defined key_agrif |
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| 112 | CALL Agrif_Init_Grids() ! AGRIF: set the meshes |
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| 113 | #endif |
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| 114 | |
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| 115 | ! !-----------------------! |
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| 116 | CALL opa_init !== Initialisations ==! |
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| 117 | ! !-----------------------! |
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| 118 | |
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| 119 | ! check that all process are still there... If some process have an error, |
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| 120 | ! they will never enter in step and other processes will wait until the end of the cpu time! |
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| 121 | IF( lk_mpp ) CALL mpp_max( nstop ) |
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| 122 | |
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| 123 | IF(lwp) WRITE(numout,cform_aaa) ! Flag AAAAAAA |
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| 124 | |
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| 125 | ! !-----------------------! |
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| 126 | ! !== time stepping ==! |
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| 127 | ! !-----------------------! |
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| 128 | istp = nit000 |
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| 129 | IF( lk_c1d ) THEN !== 1D configuration ==! |
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| 130 | DO WHILE ( istp <= nitend .AND. nstop == 0 ) |
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| 131 | CALL stp_c1d( istp ) |
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| 132 | istp = istp + 1 |
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| 133 | END DO |
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| 134 | ELSE !== 3D ocean with ==! |
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| 135 | DO WHILE ( istp <= nitend .AND. nstop == 0 ) |
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| 136 | #if defined key_agrif |
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| 137 | CALL Agrif_Step( stp ) ! AGRIF: time stepping |
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| 138 | #else |
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| 139 | CALL stp( istp ) ! standard time stepping |
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| 140 | #endif |
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| 141 | istp = istp + 1 |
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| 142 | IF( lk_mpp ) CALL mpp_max( nstop ) |
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| 143 | END DO |
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| 144 | ENDIF |
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| 145 | |
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| 146 | ! !------------------------! |
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| 147 | ! !== finalize the run ==! |
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| 148 | ! !------------------------! |
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| 149 | IF(lwp) WRITE(numout,cform_aaa) ! Flag AAAAAAA |
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| 150 | ! |
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| 151 | IF( nstop /= 0 .AND. lwp ) THEN ! error print |
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| 152 | WRITE(numout,cform_err) |
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| 153 | WRITE(numout,*) nstop, ' error have been found' |
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| 154 | ENDIF |
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| 155 | ! |
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| 156 | CALL opa_closefile |
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| 157 | #if defined key_oasis3 || defined key_oasis4 |
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| 158 | IF( Agrif_Root() ) THEN |
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| 159 | CALL cpl_prism_finalize ! end coupling and mpp communications with OASIS |
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| 160 | ENDIF |
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| 161 | #else |
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| 162 | IF( lk_mpp ) CALL mppstop ! end mpp communications |
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| 163 | #endif |
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| 164 | ! |
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| 165 | END SUBROUTINE opa_model |
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| 166 | |
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| 167 | |
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| 168 | SUBROUTINE opa_init |
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| 169 | !!---------------------------------------------------------------------- |
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| 170 | !! *** ROUTINE opa_init *** |
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| 171 | !! |
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| 172 | !! ** Purpose : initialization of the opa model |
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| 173 | !! |
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| 174 | !!---------------------------------------------------------------------- |
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| 175 | #if defined key_oasis3 || defined key_oasis4 || defined key_iomput |
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| 176 | INTEGER :: ilocal_comm |
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| 177 | #endif |
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| 178 | CHARACTER(len=80),dimension(10) :: cltxt = '' |
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| 179 | INTEGER :: ji ! local loop indices |
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| 180 | !! |
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| 181 | NAMELIST/namctl/ ln_ctl , nn_print, nn_ictls, nn_ictle, & |
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| 182 | & nn_isplt, nn_jsplt, nn_jctls, nn_jctle, nn_bench, nn_bit_cmp |
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| 183 | !!---------------------------------------------------------------------- |
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| 184 | ! |
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| 185 | ! ! open Namelist file |
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| 186 | CALL ctl_opn( numnam, 'namelist', 'OLD', 'FORMATTED', 'SEQUENTIAL', -1, 6, .FALSE. ) |
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| 187 | ! |
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| 188 | READ( numnam, namctl ) ! Namelist namctl : Control prints & Benchmark |
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| 189 | ! |
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| 190 | ! !--------------------------------------------! |
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| 191 | ! ! set communicator & select the local node ! |
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| 192 | ! !--------------------------------------------! |
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| 193 | #if defined key_iomput |
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| 194 | # if defined key_oasis3 || defined key_oasis4 |
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| 195 | IF( Agrif_Root() ) THEN |
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| 196 | CALL cpl_prism_init( ilocal_comm ) ! nemo local communicator given by oasis |
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| 197 | CALL init_ioclient() ! io_server will get its communicators (if needed) from oasis (we don't see it) |
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| 198 | ENDIF |
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| 199 | # else |
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| 200 | IF( Agrif_Root() ) THEN |
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| 201 | CALL init_ioclient( ilocal_comm ) ! nemo local communicator (used or not) given by the io_server |
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| 202 | ENDIF |
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| 203 | # endif |
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| 204 | narea = mynode( cltxt, ilocal_comm ) ! Nodes selection |
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| 205 | |
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| 206 | #else |
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| 207 | # if defined key_oasis3 || defined key_oasis4 |
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| 208 | IF( Agrif_Root() ) THEN |
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| 209 | CALL cpl_prism_init( ilocal_comm ) ! nemo local communicator given by oasis |
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| 210 | ENDIF |
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| 211 | narea = mynode( cltxt, ilocal_comm ) ! Nodes selection (control print return in cltxt) |
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| 212 | # else |
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| 213 | narea = mynode( cltxt ) ! Nodes selection (control print return in cltxt) |
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| 214 | # endif |
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| 215 | #endif |
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| 216 | narea = narea + 1 ! mynode return the rank of proc (0 --> jpnij -1 ) |
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| 217 | |
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| 218 | lwp = (narea == 1) .OR. ln_ctl ! control of all listing output print |
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| 219 | |
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| 220 | IF(lwp) THEN ! open listing units |
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| 221 | ! |
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| 222 | CALL ctl_opn( numout, 'ocean.output', 'REPLACE', 'FORMATTED', 'SEQUENTIAL', -1, 6, .FALSE., narea ) |
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| 223 | ! |
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| 224 | WRITE(numout,*) |
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| 225 | WRITE(numout,*) ' CNRS - NERC - Met OFFICE - MERCATOR-ocean' |
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| 226 | WRITE(numout,*) ' NEMO team' |
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| 227 | WRITE(numout,*) ' Ocean General Circulation Model' |
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| 228 | WRITE(numout,*) ' version 3.2 (2009) ' |
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| 229 | WRITE(numout,*) |
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| 230 | WRITE(numout,*) |
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| 231 | DO ji = 1, SIZE(cltxt) |
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| 232 | IF( TRIM(cltxt(ji)) /= '' ) WRITE(numout,*) cltxt(ji) ! control print of mynode |
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| 233 | END DO |
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| 234 | WRITE(numout,cform_aaa) ! Flag AAAAAAA |
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| 235 | ! |
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| 236 | ENDIF |
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| 237 | ! !--------------------------------! |
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| 238 | ! ! Model general initialization ! |
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| 239 | ! !--------------------------------! |
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| 240 | |
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| 241 | CALL opa_flg ! Control prints & Benchmark |
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| 242 | |
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| 243 | ! Domain decomposition |
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| 244 | IF( jpni*jpnj == jpnij ) THEN ; CALL mpp_init ! standard cutting out |
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| 245 | ELSE ; CALL mpp_init2 ! eliminate land processors |
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| 246 | ENDIF |
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| 247 | |
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| 248 | CALL phy_cst ! Physical constants |
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| 249 | CALL eos_init ! Equation of state |
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| 250 | CALL dom_cfg ! Domain configuration |
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| 251 | CALL dom_init ! Domain |
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| 252 | !!gm c1d case can be moved in dom_init routine |
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| 253 | IF( lk_c1d ) THEN ! 1D configuration |
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| 254 | CALL cor_c1d ! Coriolis defined at T-point |
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| 255 | umask(:,:,:) = tmask(:,:,:) ! U, V and T-points are the same |
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| 256 | vmask(:,:,:) = tmask(:,:,:) ! |
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| 257 | ENDIF |
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| 258 | !!gm c1d end |
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| 259 | |
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| 260 | CALL opa_northcomms ! Initialise the northfold neighbour lists (must be done after the masks are defined) |
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| 261 | |
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| 262 | IF( ln_ctl ) CALL prt_ctl_init ! Print control |
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| 263 | |
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| 264 | IF( lk_obc ) CALL obc_init ! Open boundaries |
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| 265 | IF( lk_bdy ) CALL bdy_init ! Unstructured open boundaries |
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| 266 | |
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| 267 | CALL istate_init ! ocean initial state (Dynamics and tracers) |
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| 268 | |
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| 269 | ! ! Ocean physics |
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| 270 | CALL sbc_init ! Read namsbc namelist : surface module (needed for iom_init) |
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| 271 | CALL ldf_tra_init ! Lateral ocean tracer physics |
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| 272 | CALL ldf_dyn_init ! Lateral ocean momentum physics |
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| 273 | CALL zdf_init ! Vertical ocean physics |
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| 274 | |
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| 275 | #if defined key_top |
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| 276 | CALL trc_ini ! Passive tracers |
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| 277 | #endif |
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| 278 | |
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| 279 | ! ! diagnostics |
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| 280 | CALL iom_init ! iom_put initialization |
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| 281 | CALL dia_ptr_init ! Poleward TRansports initialization |
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| 282 | CALL trd_mod_init ! Mixed-layer/Vorticity/Integral constraints trends |
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| 283 | ! |
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| 284 | END SUBROUTINE opa_init |
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| 285 | |
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| 286 | |
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| 287 | SUBROUTINE opa_flg |
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| 288 | !!---------------------------------------------------------------------- |
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| 289 | !! *** ROUTINE opa *** |
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| 290 | !! |
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| 291 | !! ** Purpose : Initialise logical flags that control the choice of |
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| 292 | !! some algorithm or control print |
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| 293 | !! |
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| 294 | !! ** Method : - print namctl information |
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| 295 | !! - Read in namilist namflg logical flags |
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| 296 | !!---------------------------------------------------------------------- |
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| 297 | NAMELIST/namdyn_hpg/ ln_hpg_zco , ln_hpg_zps , ln_hpg_sco, ln_hpg_hel, & |
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| 298 | & ln_hpg_wdj , ln_hpg_djc , ln_hpg_rot, rn_gamma , & |
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| 299 | & ln_dynhpg_imp, nn_dynhpg_rst |
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| 300 | !!---------------------------------------------------------------------- |
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| 301 | |
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| 302 | IF(lwp) THEN ! Parameter print |
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| 303 | WRITE(numout,*) |
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| 304 | WRITE(numout,*) 'opa_flg: Control prints & Benchmark' |
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| 305 | WRITE(numout,*) '~~~~~~~ ' |
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| 306 | WRITE(numout,*) ' Namelist namctl' |
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| 307 | WRITE(numout,*) ' run control (for debugging) ln_ctl = ', ln_ctl |
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| 308 | WRITE(numout,*) ' level of print nn_print = ', nn_print |
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| 309 | WRITE(numout,*) ' Start i indice for SUM control nn_ictls = ', nn_ictls |
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| 310 | WRITE(numout,*) ' End i indice for SUM control nn_ictle = ', nn_ictle |
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| 311 | WRITE(numout,*) ' Start j indice for SUM control nn_jctls = ', nn_jctls |
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| 312 | WRITE(numout,*) ' End j indice for SUM control nn_jctle = ', nn_jctle |
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| 313 | WRITE(numout,*) ' number of proc. following i nn_isplt = ', nn_isplt |
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| 314 | WRITE(numout,*) ' number of proc. following j nn_jsplt = ', nn_jsplt |
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| 315 | WRITE(numout,*) ' benchmark parameter (0/1) nn_bench = ', nn_bench |
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| 316 | WRITE(numout,*) ' bit comparison mode (0/1) nn_bit_cmp = ', nn_bit_cmp |
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| 317 | ENDIF |
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| 318 | |
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| 319 | nprint = nn_print ! convert DOCTOR namelist names into OLD names |
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| 320 | nictls = nn_ictls |
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| 321 | nictle = nn_ictle |
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| 322 | njctls = nn_jctls |
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| 323 | njctle = nn_jctle |
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| 324 | isplt = nn_isplt |
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| 325 | jsplt = nn_jsplt |
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| 326 | nbench = nn_bench |
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| 327 | nbit_cmp = nn_bit_cmp |
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| 328 | |
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| 329 | ! ! Parameter control |
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| 330 | ! |
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| 331 | IF( ln_ctl ) THEN ! sub-domain area indices for the control prints |
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| 332 | IF( lk_mpp ) THEN |
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| 333 | isplt = jpni ; jsplt = jpnj ; ijsplt = jpni*jpnj ! the domain is forced to the real splitted domain |
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| 334 | ELSE |
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| 335 | IF( isplt == 1 .AND. jsplt == 1 ) THEN |
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| 336 | CALL ctl_warn( ' - isplt & jsplt are equal to 1', & |
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| 337 | & ' - the print control will be done over the whole domain' ) |
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| 338 | ENDIF |
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| 339 | ijsplt = isplt * jsplt ! total number of processors ijsplt |
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| 340 | ENDIF |
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| 341 | IF(lwp) WRITE(numout,*)' - The total number of processors over which the' |
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| 342 | IF(lwp) WRITE(numout,*)' print control will be done is ijsplt : ', ijsplt |
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| 343 | ! |
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| 344 | ! ! indices used for the SUM control |
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| 345 | IF( nictls+nictle+njctls+njctle == 0 ) THEN ! print control done over the default area |
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| 346 | lsp_area = .FALSE. |
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| 347 | ELSE ! print control done over a specific area |
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| 348 | lsp_area = .TRUE. |
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| 349 | IF( nictls < 1 .OR. nictls > jpiglo ) THEN |
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| 350 | CALL ctl_warn( ' - nictls must be 1<=nictls>=jpiglo, it is forced to 1' ) |
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| 351 | nictls = 1 |
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| 352 | ENDIF |
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| 353 | IF( nictle < 1 .OR. nictle > jpiglo ) THEN |
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| 354 | CALL ctl_warn( ' - nictle must be 1<=nictle>=jpiglo, it is forced to jpiglo' ) |
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| 355 | nictle = jpiglo |
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| 356 | ENDIF |
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| 357 | IF( njctls < 1 .OR. njctls > jpjglo ) THEN |
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| 358 | CALL ctl_warn( ' - njctls must be 1<=njctls>=jpjglo, it is forced to 1' ) |
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| 359 | njctls = 1 |
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| 360 | ENDIF |
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| 361 | IF( njctle < 1 .OR. njctle > jpjglo ) THEN |
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| 362 | CALL ctl_warn( ' - njctle must be 1<=njctle>=jpjglo, it is forced to jpjglo' ) |
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| 363 | njctle = jpjglo |
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| 364 | ENDIF |
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| 365 | ENDIF |
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| 366 | ENDIF |
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| 367 | |
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| 368 | IF( nbench == 1 ) THEN ! Benchmark |
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| 369 | SELECT CASE ( cp_cfg ) |
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| 370 | CASE ( 'gyre' ) ; CALL ctl_warn( ' The Benchmark is activated ' ) |
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| 371 | CASE DEFAULT ; CALL ctl_stop( ' The Benchmark is based on the GYRE configuration:', & |
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| 372 | & ' key_gyre must be used or set nbench = 0' ) |
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| 373 | END SELECT |
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| 374 | ENDIF |
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| 375 | |
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| 376 | IF( nbit_cmp == 1 ) THEN ! Bit compare |
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| 377 | CALL ctl_warn( ' Bit comparison enabled. Single and multiple processor results must bit compare', & |
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| 378 | & ' WARNING: RESULTS ARE NOT PHYSICAL.' ) |
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| 379 | ENDIF |
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| 380 | |
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| 381 | REWIND( numnam ) ! Read Namelist namdyn_hpg : ln_dynhpg_imp must be read at the initialisation phase |
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| 382 | READ ( numnam, namdyn_hpg ) |
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| 383 | ! |
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| 384 | END SUBROUTINE opa_flg |
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| 385 | |
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| 386 | |
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| 387 | SUBROUTINE opa_closefile |
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| 388 | !!---------------------------------------------------------------------- |
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| 389 | !! *** ROUTINE opa_closefile *** |
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| 390 | !! |
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| 391 | !! ** Purpose : Close the files |
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| 392 | !!---------------------------------------------------------------------- |
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| 393 | USE dtatem ! temperature data |
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| 394 | USE dtasal ! salinity data |
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| 395 | !!---------------------------------------------------------------------- |
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| 396 | ! |
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| 397 | IF( lk_mpp ) CALL mppsync |
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| 398 | ! |
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| 399 | CALL iom_close ! close all input/output files managed by iom_* |
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| 400 | ! |
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| 401 | IF( numstp /= -1 ) CLOSE( numstp ) ! time-step file |
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| 402 | IF( numsol /= -1 ) CLOSE( numsol ) ! solver file |
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| 403 | IF( numnam /= -1 ) CLOSE( numnam ) ! oce namelist |
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| 404 | IF( numnam_ice /= -1 ) CLOSE( numnam_ice ) ! ice namelist |
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| 405 | IF( numevo_ice /= -1 ) CLOSE( numevo_ice ) ! ice variables (temp. evolution) |
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| 406 | IF( numout /= 6 ) CLOSE( numout ) ! standard model output file |
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| 407 | numout = 6 ! redefine numout in case it is used after this point... |
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| 408 | ! |
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| 409 | END SUBROUTINE opa_closefile |
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| 410 | |
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| 411 | SUBROUTINE opa_northcomms |
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| 412 | !!====================================================================== |
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| 413 | !! *** ROUTINE opa_northcomms *** |
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| 414 | !! opa_northcomms : Setup for north fold exchanges with explicit peer to peer messaging |
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| 415 | !!===================================================================== |
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| 416 | !!---------------------------------------------------------------------- |
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| 417 | !! |
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| 418 | !! ** Purpose : Initialization of the northern neighbours lists. |
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| 419 | !!---------------------------------------------------------------------- |
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| 420 | |
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| 421 | INTEGER :: ji, jj, jk, ij ! dummy loop indices |
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| 422 | INTEGER :: ijpj ! ??? |
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| 423 | INTEGER, DIMENSION (jpi,4,4) :: ifoldnbrs |
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| 424 | REAL(wp), DIMENSION (jpi,jpj) :: znnbrs ! workspace |
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| 425 | LOGICAL, DIMENSION (jpnij) :: lrankset ! workspace |
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| 426 | |
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| 427 | IF(lwp) WRITE(numout,*) |
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| 428 | IF(lwp) WRITE(numout,*) 'opa_northcomms : Initialization of the northern neighbours lists' |
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| 429 | IF(lwp) WRITE(numout,*) '~~~~~~~~~~' |
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| 430 | |
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| 431 | !!---------------------------------------------------------------------- |
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| 432 | nsndto = 0 |
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| 433 | isendto = -1 |
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| 434 | ijpj = 4 |
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| 435 | ! |
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| 436 | ! Exchange and store ranks on northern rows |
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| 437 | |
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| 438 | lrankset = .FALSE. |
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| 439 | znnbrs = narea * tmask(:,:,1) |
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| 440 | CALL lbc_lnk( znnbrs, 'T', 1. ) |
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| 441 | |
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| 442 | IF ( njmppt(narea) .eq. MAXVAL( njmppt )) THEN |
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| 443 | do jj = nlcj-ijpj+1, nlcj |
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| 444 | ij = jj - nlcj + ijpj |
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| 445 | ifoldnbrs(:,ij,1) = int(znnbrs(:,jj)) |
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| 446 | do ji = 1,jpi |
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| 447 | if(int(znnbrs(ji,jj)) .ne. 0 .and. int(znnbrs(ji,jj)) .ne. narea ) & |
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| 448 | & lrankset(int(znnbrs(ji,jj))) = .true. |
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| 449 | end do |
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| 450 | end do |
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| 451 | |
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| 452 | do jj = 1,jpnij |
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| 453 | IF (lrankset(jj)) THEN |
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| 454 | nsndto(1) = nsndto(1) + 1 |
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| 455 | IF(nsndto(1) .gt. jpmaxngh ) THEN |
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| 456 | CALL ctl_stop( ' Too many neighbours in opa_northcomms ', & |
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| 457 | & ' jpmaxngh will need to be increased ') |
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| 458 | ENDIF |
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| 459 | isendto(nsndto(1),1) = jj-1 ! narea converted to MPI rank |
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| 460 | ENDIF |
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| 461 | end do |
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| 462 | ENDIF |
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| 463 | |
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| 464 | lrankset = .FALSE. |
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| 465 | znnbrs = narea * umask(:,:,1) |
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| 466 | CALL lbc_lnk( znnbrs, 'U', 1. ) |
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| 467 | |
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| 468 | IF ( njmppt(narea) .eq. MAXVAL( njmppt )) THEN |
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| 469 | do jj = nlcj-ijpj+1, nlcj |
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| 470 | ij = jj - nlcj + ijpj |
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| 471 | ifoldnbrs(:,ij,2) = int(znnbrs(:,jj)) |
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| 472 | do ji = 1,jpi |
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| 473 | if(int(znnbrs(ji,jj)) .ne. 0 .and. int(znnbrs(ji,jj)) .ne. narea ) & |
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| 474 | & lrankset(int(znnbrs(ji,jj))) = .true. |
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| 475 | end do |
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| 476 | end do |
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| 477 | |
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| 478 | do jj = 1,jpnij |
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| 479 | IF (lrankset(jj)) THEN |
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| 480 | nsndto(2) = nsndto(2) + 1 |
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| 481 | IF(nsndto(2) .gt. jpmaxngh ) THEN |
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| 482 | CALL ctl_stop( ' Too many neighbours in opa_northcomms ', & |
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| 483 | & ' jpmaxngh will need to be increased ') |
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| 484 | ENDIF |
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| 485 | isendto(nsndto(2),2) = jj-1 ! narea converted to MPI rank |
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| 486 | ENDIF |
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| 487 | end do |
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| 488 | ENDIF |
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| 489 | |
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| 490 | lrankset = .FALSE. |
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| 491 | znnbrs = narea * vmask(:,:,1) |
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| 492 | CALL lbc_lnk( znnbrs, 'V', 1. ) |
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| 493 | |
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| 494 | IF ( njmppt(narea) .eq. MAXVAL( njmppt )) THEN |
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| 495 | do jj = nlcj-ijpj+1, nlcj |
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| 496 | ij = jj - nlcj + ijpj |
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| 497 | ifoldnbrs(:,ij,3) = int(znnbrs(:,jj)) |
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| 498 | do ji = 1,jpi |
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| 499 | if(int(znnbrs(ji,jj)) .ne. 0 .and. int(znnbrs(ji,jj)) .ne. narea ) & |
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| 500 | & lrankset(int(znnbrs(ji,jj))) = .true. |
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| 501 | end do |
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| 502 | end do |
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| 503 | |
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| 504 | do jj = 1,jpnij |
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| 505 | IF (lrankset(jj)) THEN |
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| 506 | nsndto(3) = nsndto(3) + 1 |
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| 507 | IF(nsndto(3) .gt. jpmaxngh ) THEN |
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| 508 | CALL ctl_stop( ' Too many neighbours in opa_northcomms ', & |
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| 509 | & ' jpmaxngh will need to be increased ') |
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| 510 | ENDIF |
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| 511 | isendto(nsndto(3),3) = jj-1 ! narea converted to MPI rank |
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| 512 | ENDIF |
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| 513 | end do |
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| 514 | ENDIF |
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| 515 | |
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| 516 | lrankset = .FALSE. |
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| 517 | znnbrs = narea * fmask(:,:,1) |
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| 518 | ! |
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| 519 | ! filter top rows to counter any strong slip conditions |
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| 520 | ! |
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| 521 | do jj = nlcj-ijpj+1, nlcj |
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| 522 | do ji = 1,jpi |
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| 523 | znnbrs(ji,jj) = narea * MIN(1.0,fmask(ji,jj,1)) |
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| 524 | end do |
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| 525 | enddo |
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| 526 | CALL lbc_lnk( znnbrs, 'F', 1. ) |
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| 527 | |
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| 528 | IF ( njmppt(narea) .eq. MAXVAL( njmppt )) THEN |
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| 529 | do jj = nlcj-ijpj+1, nlcj |
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| 530 | ij = jj - nlcj + ijpj |
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| 531 | ifoldnbrs(:,ij,4) = int(znnbrs(:,jj)) |
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| 532 | do ji = 1,jpi |
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| 533 | if(int(znnbrs(ji,jj)) .ne. 0 .and. int(znnbrs(ji,jj)) .ne. narea ) & |
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| 534 | & lrankset(int(znnbrs(ji,jj))) = .true. |
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| 535 | end do |
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| 536 | end do |
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| 537 | |
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| 538 | do jj = 1,jpnij |
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| 539 | IF (lrankset(jj)) THEN |
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| 540 | nsndto(4) = nsndto(4) + 1 |
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| 541 | IF(nsndto(4) .gt. jpmaxngh ) THEN |
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| 542 | CALL ctl_stop( ' Too many neighbours in opa_northcomms ', & |
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| 543 | & ' jpmaxngh will need to be increased ') |
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| 544 | ENDIF |
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| 545 | isendto(nsndto(4),4) = jj-1 ! narea converted to MPI rank |
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| 546 | ENDIF |
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| 547 | end do |
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| 548 | |
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| 549 | lnorth_nogather = .TRUE. |
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| 550 | ENDIF |
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| 551 | |
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| 552 | END SUBROUTINE opa_northcomms |
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| 553 | !!====================================================================== |
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| 554 | END MODULE opa |
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