[6881] | 1 | PROGRAM make_domain_cfg |
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| 2 | !!====================================================================== |
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| 3 | !! *** PROGRAM make_domain *** |
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| 4 | !!====================================================================== |
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| 5 | !! |
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| 6 | !!---------------------------------------------------------------------- |
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| 7 | |
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| 8 | USE step_oce ! module used in the ocean time stepping module (step.F90) |
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| 9 | USE domcfg ! domain configuration (dom_cfg routine) |
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| 10 | USE mppini ! shared/distributed memory setting (mpp_init routine) |
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| 11 | USE domain ! domain initialization (dom_init routine) |
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| 12 | USE phycst ! physical constant (par_cst routine) |
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| 13 | USE lib_fortran ! Fortran utilities (allows no signed zero when 'key_nosignedzero' defined) |
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| 14 | USE lib_mpp ! distributed memory computing |
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| 15 | USE xios ! xIOserver |
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| 16 | USE lbcnfd , ONLY : isendto, nsndto, nfsloop, nfeloop ! Setup of north fold exchanges |
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| 17 | |
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| 18 | IMPLICIT NONE |
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| 19 | PRIVATE |
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| 20 | |
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| 21 | PUBLIC nemo_gcm ! called by model.F90 |
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| 22 | PUBLIC nemo_init ! needed by AGRIF |
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| 23 | PUBLIC nemo_alloc ! needed by TAM |
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| 24 | |
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| 25 | CHARACTER(lc) :: cform_aaa="( /, 'AAAAAAAA', / ) " ! flag for output listing |
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| 26 | |
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| 27 | !!---------------------------------------------------------------------- |
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| 28 | !! NEMO/OPA 3.7 , NEMO Consortium (2015) |
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| 29 | !! $Id: nemogcm.F90 6827 2016-08-01 13:37:15Z flavoni $ |
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| 30 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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| 31 | !!---------------------------------------------------------------------- |
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| 32 | CONTAINS |
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| 33 | |
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| 34 | SUBROUTINE nemo_gcm |
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| 35 | !!---------------------------------------------------------------------- |
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| 36 | !! *** ROUTINE nemo_gcm *** |
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| 37 | !! |
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| 38 | !! ** Purpose : NEMO solves the primitive equations on an orthogonal |
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| 39 | !! curvilinear mesh on the sphere. |
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| 40 | !! |
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| 41 | !! ** Method : - model general initialization |
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| 42 | !! - launch the time-stepping (stp routine) |
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| 43 | !! - finalize the run by closing files and communications |
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| 44 | !! |
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| 45 | !! References : Madec, Delecluse, Imbard, and Levy, 1997: internal report, IPSL. |
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| 46 | !! Madec, 2008, internal report, IPSL. |
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| 47 | !!---------------------------------------------------------------------- |
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| 48 | INTEGER :: istp ! time step index |
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| 49 | !!---------------------------------------------------------------------- |
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| 50 | ! |
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| 51 | CALL nemo_init !== Initialisations ==! |
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| 52 | ! !-----------------------! |
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| 53 | ! check that all process are still there... If some process have an error, |
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| 54 | ! they will never enter in step and other processes will wait until the end of the cpu time! |
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| 55 | IF( lk_mpp ) CALL mpp_max( nstop ) |
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| 56 | |
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| 57 | IF(lwp) WRITE(numout,cform_aaa) ! Flag AAAAAAA |
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| 58 | |
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| 59 | ! !-----------------------! |
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| 60 | ! !== finalize the run ==! |
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| 61 | ! !------------------------! |
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| 62 | ! |
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| 63 | IF( nstop /= 0 .AND. lwp ) THEN ! error print |
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| 64 | WRITE(numout,cform_err) |
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| 65 | WRITE(numout,*) nstop, ' error have been found' |
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| 66 | ENDIF |
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| 67 | ! |
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| 68 | IF( nn_timing == 1 ) CALL timing_finalize |
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| 69 | ! |
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| 70 | CALL nemo_closefile |
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| 71 | ! |
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| 72 | CALL xios_finalize ! end mpp communications with xios |
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| 73 | ! |
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| 74 | END SUBROUTINE nemo_gcm |
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| 75 | |
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| 76 | |
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| 77 | SUBROUTINE nemo_init |
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| 78 | !!---------------------------------------------------------------------- |
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| 79 | !! *** ROUTINE nemo_init *** |
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| 80 | !! |
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| 81 | !! ** Purpose : initialization of the NEMO GCM |
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| 82 | !!---------------------------------------------------------------------- |
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| 83 | INTEGER :: ji ! dummy loop indices |
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| 84 | INTEGER :: ilocal_comm ! local integer |
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| 85 | INTEGER :: ios |
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| 86 | CHARACTER(len=80), DIMENSION(16) :: cltxt |
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| 87 | ! |
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| 88 | NAMELIST/namctl/ ln_ctl , nn_print, nn_ictls, nn_ictle, & |
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| 89 | & nn_isplt, nn_jsplt, nn_jctls, nn_jctle, & |
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| 90 | & nn_bench, nn_timing, nn_diacfl |
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| 91 | NAMELIST/namcfg/ cp_cfg, cp_cfz, jp_cfg, jpidta, jpjdta, jpkdta, jpiglo, jpjglo, & |
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| 92 | & jpizoom, jpjzoom, jperio, ln_use_jattr |
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| 93 | !!---------------------------------------------------------------------- |
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| 94 | ! |
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| 95 | cltxt = '' |
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| 96 | cxios_context = 'nemo' |
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| 97 | ! |
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| 98 | ! ! Open reference namelist and configuration namelist files |
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| 99 | CALL ctl_opn( numnam_ref, 'namelist_ref', 'OLD', 'FORMATTED', 'SEQUENTIAL', -1, 6, .FALSE. ) |
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| 100 | CALL ctl_opn( numnam_cfg, 'namelist_cfg', 'OLD', 'FORMATTED', 'SEQUENTIAL', -1, 6, .FALSE. ) |
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| 101 | ! |
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| 102 | REWIND( numnam_ref ) ! Namelist namctl in reference namelist : Control prints & Benchmark |
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| 103 | READ ( numnam_ref, namctl, IOSTAT = ios, ERR = 901 ) |
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| 104 | 901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namctl in reference namelist', .TRUE. ) |
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| 105 | |
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| 106 | REWIND( numnam_cfg ) ! Namelist namctl in confguration namelist : Control prints & Benchmark |
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| 107 | READ ( numnam_cfg, namctl, IOSTAT = ios, ERR = 902 ) |
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| 108 | 902 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namctl in configuration namelist', .TRUE. ) |
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| 109 | |
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| 110 | ! |
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| 111 | REWIND( numnam_ref ) ! Namelist namcfg in reference namelist : Control prints & Benchmark |
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| 112 | READ ( numnam_ref, namcfg, IOSTAT = ios, ERR = 903 ) |
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| 113 | 903 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namcfg in reference namelist', .TRUE. ) |
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| 114 | |
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| 115 | REWIND( numnam_cfg ) ! Namelist namcfg in confguration namelist : Control prints & Benchmark |
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| 116 | READ ( numnam_cfg, namcfg, IOSTAT = ios, ERR = 904 ) |
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| 117 | 904 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namcfg in configuration namelist', .TRUE. ) |
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| 118 | |
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| 119 | ! |
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| 120 | ! !--------------------------------------------! |
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| 121 | ! ! set communicator & select the local node ! |
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| 122 | ! ! NB: mynode also opens output.namelist.dyn ! |
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| 123 | ! ! on unit number numond on first proc ! |
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| 124 | ! !--------------------------------------------! |
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| 125 | ! Nodes selection (control print return in cltxt) |
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| 126 | narea = mynode( cltxt, 'output.namelist.dyn', numnam_ref, numnam_cfg, numond , nstop, ilocal_comm ) |
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| 127 | ! |
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| 128 | narea = narea + 1 ! mynode return the rank of proc (0 --> jpnij -1 ) |
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| 129 | |
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| 130 | lwm = (narea == 1) ! control of output namelists |
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| 131 | lwp = (narea == 1) .OR. ln_ctl ! control of all listing output print |
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| 132 | |
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| 133 | IF(lwm) THEN |
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| 134 | ! write merged namelists from earlier to output namelist now that the |
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| 135 | ! file has been opened in call to mynode. nammpp has already been |
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| 136 | ! written in mynode (if lk_mpp_mpi) |
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| 137 | WRITE( numond, namctl ) |
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| 138 | WRITE( numond, namcfg ) |
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| 139 | ENDIF |
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| 140 | |
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| 141 | ! If dimensions of processor grid weren't specified in the namelist file |
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| 142 | ! then we calculate them here now that we have our communicator size |
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| 143 | IF( jpni < 1 .OR. jpnj < 1 ) THEN |
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| 144 | IF( Agrif_Root() ) CALL nemo_partition( mppsize ) |
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| 145 | ENDIF |
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| 146 | |
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| 147 | ! Calculate domain dimensions given calculated jpni and jpnj |
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| 148 | ! This used to be done in par_oce.F90 when they were parameters rather than variables |
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| 149 | IF( Agrif_Root() ) THEN |
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| 150 | jpi = ( jpiglo -2*jpreci + (jpni-1) ) / jpni + 2*jpreci ! first dim. |
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| 151 | jpj = ( jpjglo -2*jprecj + (jpnj-1) ) / jpnj + 2*jprecj ! second dim. |
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| 152 | ENDIF |
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| 153 | jpk = jpkdta ! third dim |
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| 154 | ! |
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| 155 | jpim1 = jpi-1 ! inner domain indices |
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| 156 | jpjm1 = jpj-1 ! " " |
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| 157 | jpkm1 = jpk-1 ! " " |
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| 158 | jpij = jpi*jpj ! jpi x j |
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| 159 | |
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| 160 | IF(lwp) THEN ! open listing units |
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| 161 | ! |
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| 162 | CALL ctl_opn( numout, 'ocean.output', 'REPLACE', 'FORMATTED', 'SEQUENTIAL', -1, 6, .FALSE., narea ) |
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| 163 | ! |
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| 164 | WRITE(numout,*) |
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| 165 | WRITE(numout,*) ' CNRS - NERC - Met OFFICE - MERCATOR-ocean - INGV - CMCC' |
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| 166 | WRITE(numout,*) ' NEMO team' |
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| 167 | WRITE(numout,*) ' Ocean General Circulation Model' |
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| 168 | WRITE(numout,*) ' version 3.7 (2015) ' |
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| 169 | WRITE(numout,*) |
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| 170 | WRITE(numout,*) |
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| 171 | DO ji = 1, SIZE(cltxt) |
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| 172 | IF( TRIM(cltxt(ji)) /= '' ) WRITE(numout,*) cltxt(ji) ! control print of mynode |
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| 173 | END DO |
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| 174 | WRITE(numout,cform_aaa) ! Flag AAAAAAA |
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| 175 | ! |
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| 176 | ENDIF |
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| 177 | |
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| 178 | ! Now we know the dimensions of the grid and numout has been set we can |
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| 179 | ! allocate arrays |
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| 180 | CALL nemo_alloc() |
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| 181 | |
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| 182 | ! !-------------------------------! |
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| 183 | ! ! NEMO general initialization ! |
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| 184 | ! !-------------------------------! |
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| 185 | |
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| 186 | CALL nemo_ctl ! Control prints & Benchmark |
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| 187 | |
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| 188 | ! ! Domain decomposition |
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| 189 | IF( jpni*jpnj == jpnij ) THEN ; CALL mpp_init ! standard cutting out |
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| 190 | ELSE ; CALL mpp_init2 ! eliminate land processors |
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| 191 | ENDIF |
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| 192 | ! |
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| 193 | IF( nn_timing == 1 ) CALL timing_init |
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| 194 | ! |
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| 195 | ! ! General initialization |
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| 196 | CALL phy_cst ! Physical constants |
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| 197 | CALL eos_init ! Equation of state |
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| 198 | CALL dom_cfg ! Domain configuration |
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| 199 | CALL dom_init ! Domain |
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| 200 | IF( ln_ctl ) CALL prt_ctl_init ! Print control |
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| 201 | ! |
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| 202 | END SUBROUTINE nemo_init |
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| 203 | |
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| 204 | |
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| 205 | SUBROUTINE nemo_ctl |
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| 206 | !!---------------------------------------------------------------------- |
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| 207 | !! *** ROUTINE nemo_ctl *** |
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| 208 | !! |
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| 209 | !! ** Purpose : control print setting |
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| 210 | !! |
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| 211 | !! ** Method : - print namctl information and check some consistencies |
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| 212 | !!---------------------------------------------------------------------- |
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| 213 | ! |
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| 214 | IF(lwp) THEN ! control print |
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| 215 | WRITE(numout,*) |
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| 216 | WRITE(numout,*) 'nemo_ctl: Control prints & Benchmark' |
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| 217 | WRITE(numout,*) '~~~~~~~ ' |
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| 218 | WRITE(numout,*) ' Namelist namctl' |
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| 219 | WRITE(numout,*) ' run control (for debugging) ln_ctl = ', ln_ctl |
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| 220 | WRITE(numout,*) ' level of print nn_print = ', nn_print |
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| 221 | WRITE(numout,*) ' Start i indice for SUM control nn_ictls = ', nn_ictls |
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| 222 | WRITE(numout,*) ' End i indice for SUM control nn_ictle = ', nn_ictle |
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| 223 | WRITE(numout,*) ' Start j indice for SUM control nn_jctls = ', nn_jctls |
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| 224 | WRITE(numout,*) ' End j indice for SUM control nn_jctle = ', nn_jctle |
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| 225 | WRITE(numout,*) ' number of proc. following i nn_isplt = ', nn_isplt |
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| 226 | WRITE(numout,*) ' number of proc. following j nn_jsplt = ', nn_jsplt |
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| 227 | WRITE(numout,*) ' benchmark parameter (0/1) nn_bench = ', nn_bench |
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| 228 | WRITE(numout,*) ' timing activated (0/1) nn_timing = ', nn_timing |
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| 229 | ENDIF |
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| 230 | ! |
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| 231 | nprint = nn_print ! convert DOCTOR namelist names into OLD names |
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| 232 | nictls = nn_ictls |
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| 233 | nictle = nn_ictle |
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| 234 | njctls = nn_jctls |
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| 235 | njctle = nn_jctle |
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| 236 | isplt = nn_isplt |
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| 237 | jsplt = nn_jsplt |
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| 238 | nbench = nn_bench |
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| 239 | |
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| 240 | IF(lwp) THEN ! control print |
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| 241 | WRITE(numout,*) |
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| 242 | WRITE(numout,*) 'namcfg : configuration initialization through namelist read' |
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| 243 | WRITE(numout,*) '~~~~~~~ ' |
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| 244 | WRITE(numout,*) ' Namelist namcfg' |
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| 245 | WRITE(numout,*) ' configuration name cp_cfg = ', TRIM(cp_cfg) |
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| 246 | WRITE(numout,*) ' configuration zoom name cp_cfz = ', TRIM(cp_cfz) |
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| 247 | WRITE(numout,*) ' configuration resolution jp_cfg = ', jp_cfg |
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| 248 | WRITE(numout,*) ' 1st lateral dimension ( >= jpiglo ) jpidta = ', jpidta |
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| 249 | WRITE(numout,*) ' 2nd " " ( >= jpjglo ) jpjdta = ', jpjdta |
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| 250 | WRITE(numout,*) ' 3nd " " jpkdta = ', jpkdta |
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| 251 | WRITE(numout,*) ' 1st dimension of global domain in i jpiglo = ', jpiglo |
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| 252 | WRITE(numout,*) ' 2nd - - in j jpjglo = ', jpjglo |
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| 253 | WRITE(numout,*) ' left bottom i index of the zoom (in data domain) jpizoom = ', jpizoom |
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| 254 | WRITE(numout,*) ' left bottom j index of the zoom (in data domain) jpizoom = ', jpjzoom |
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| 255 | WRITE(numout,*) ' lateral cond. type (between 0 and 6) jperio = ', jperio |
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| 256 | WRITE(numout,*) ' use file attribute if exists as i/p j-start ln_use_jattr = ', ln_use_jattr |
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| 257 | ENDIF |
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| 258 | ! ! Parameter control |
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| 259 | ! |
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| 260 | IF( ln_ctl ) THEN ! sub-domain area indices for the control prints |
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| 261 | IF( lk_mpp .AND. jpnij > 1 ) THEN |
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| 262 | isplt = jpni ; jsplt = jpnj ; ijsplt = jpni*jpnj ! the domain is forced to the real split domain |
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| 263 | ELSE |
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| 264 | IF( isplt == 1 .AND. jsplt == 1 ) THEN |
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| 265 | CALL ctl_warn( ' - isplt & jsplt are equal to 1', & |
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| 266 | & ' - the print control will be done over the whole domain' ) |
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| 267 | ENDIF |
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| 268 | ijsplt = isplt * jsplt ! total number of processors ijsplt |
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| 269 | ENDIF |
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| 270 | IF(lwp) WRITE(numout,*)' - The total number of processors over which the' |
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| 271 | IF(lwp) WRITE(numout,*)' print control will be done is ijsplt : ', ijsplt |
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| 272 | ! |
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| 273 | ! ! indices used for the SUM control |
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| 274 | IF( nictls+nictle+njctls+njctle == 0 ) THEN ! print control done over the default area |
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| 275 | lsp_area = .FALSE. |
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| 276 | ELSE ! print control done over a specific area |
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| 277 | lsp_area = .TRUE. |
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| 278 | IF( nictls < 1 .OR. nictls > jpiglo ) THEN |
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| 279 | CALL ctl_warn( ' - nictls must be 1<=nictls>=jpiglo, it is forced to 1' ) |
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| 280 | nictls = 1 |
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| 281 | ENDIF |
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| 282 | IF( nictle < 1 .OR. nictle > jpiglo ) THEN |
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| 283 | CALL ctl_warn( ' - nictle must be 1<=nictle>=jpiglo, it is forced to jpiglo' ) |
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| 284 | nictle = jpiglo |
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| 285 | ENDIF |
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| 286 | IF( njctls < 1 .OR. njctls > jpjglo ) THEN |
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| 287 | CALL ctl_warn( ' - njctls must be 1<=njctls>=jpjglo, it is forced to 1' ) |
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| 288 | njctls = 1 |
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| 289 | ENDIF |
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| 290 | IF( njctle < 1 .OR. njctle > jpjglo ) THEN |
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| 291 | CALL ctl_warn( ' - njctle must be 1<=njctle>=jpjglo, it is forced to jpjglo' ) |
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| 292 | njctle = jpjglo |
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| 293 | ENDIF |
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| 294 | ENDIF |
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| 295 | ENDIF |
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| 296 | ! |
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| 297 | IF( 1_wp /= SIGN(1._wp,-0._wp) ) CALL ctl_stop( 'nemo_ctl: The intrinsec SIGN function follows ', & |
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| 298 | & 'f2003 standard. ' , & |
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| 299 | & 'Compile with key_nosignedzero enabled' ) |
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| 300 | ! |
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| 301 | END SUBROUTINE nemo_ctl |
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| 302 | |
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| 303 | |
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| 304 | SUBROUTINE nemo_closefile |
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| 305 | !!---------------------------------------------------------------------- |
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| 306 | !! *** ROUTINE nemo_closefile *** |
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| 307 | !! |
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| 308 | !! ** Purpose : Close the files |
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| 309 | !!---------------------------------------------------------------------- |
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| 310 | ! |
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| 311 | IF( lk_mpp ) CALL mppsync |
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| 312 | ! |
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| 313 | CALL iom_close ! close all input/output files managed by iom_* |
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| 314 | ! |
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| 315 | IF( numstp /= -1 ) CLOSE( numstp ) ! time-step file |
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| 316 | IF( numsol /= -1 ) CLOSE( numsol ) ! solver file |
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| 317 | IF( numnam_ref /= -1 ) CLOSE( numnam_ref ) ! oce reference namelist |
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| 318 | IF( numnam_cfg /= -1 ) CLOSE( numnam_cfg ) ! oce configuration namelist |
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| 319 | IF( lwm.AND.numond /= -1 ) CLOSE( numond ) ! oce output namelist |
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| 320 | IF( numnam_ice_ref /= -1 ) CLOSE( numnam_ice_ref ) ! ice reference namelist |
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| 321 | IF( numnam_ice_cfg /= -1 ) CLOSE( numnam_ice_cfg ) ! ice configuration namelist |
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| 322 | IF( lwm.AND.numoni /= -1 ) CLOSE( numoni ) ! ice output namelist |
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| 323 | IF( numevo_ice /= -1 ) CLOSE( numevo_ice ) ! ice variables (temp. evolution) |
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| 324 | IF( numout /= 6 ) CLOSE( numout ) ! standard model output file |
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| 325 | IF( numdct_vol /= -1 ) CLOSE( numdct_vol ) ! volume transports |
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| 326 | IF( numdct_heat /= -1 ) CLOSE( numdct_heat ) ! heat transports |
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| 327 | IF( numdct_salt /= -1 ) CLOSE( numdct_salt ) ! salt transports |
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| 328 | ! |
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| 329 | numout = 6 ! redefine numout in case it is used after this point... |
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| 330 | ! |
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| 331 | END SUBROUTINE nemo_closefile |
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| 332 | |
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| 333 | |
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| 334 | SUBROUTINE nemo_alloc |
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| 335 | !!---------------------------------------------------------------------- |
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| 336 | !! *** ROUTINE nemo_alloc *** |
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| 337 | !! |
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| 338 | !! ** Purpose : Allocate all the dynamic arrays of the OPA modules |
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| 339 | !! |
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| 340 | !! ** Method : |
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| 341 | !!---------------------------------------------------------------------- |
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| 342 | USE dom_oce , ONLY: dom_oce_alloc |
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| 343 | ! |
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| 344 | INTEGER :: ierr |
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| 345 | !!---------------------------------------------------------------------- |
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| 346 | ! |
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| 347 | ierr = oce_alloc () ! ocean |
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| 348 | ierr = ierr + dom_oce_alloc () ! ocean domain |
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| 349 | ! |
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| 350 | IF( lk_mpp ) CALL mpp_sum( ierr ) |
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| 351 | IF( ierr /= 0 ) CALL ctl_stop( 'STOP', 'nemo_alloc : unable to allocate standard ocean arrays' ) |
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| 352 | ! |
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| 353 | END SUBROUTINE nemo_alloc |
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| 354 | |
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| 355 | |
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| 356 | SUBROUTINE nemo_partition( num_pes ) |
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| 357 | !!---------------------------------------------------------------------- |
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| 358 | !! *** ROUTINE nemo_partition *** |
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| 359 | !! |
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| 360 | !! ** Purpose : |
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| 361 | !! |
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| 362 | !! ** Method : |
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| 363 | !!---------------------------------------------------------------------- |
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| 364 | INTEGER, INTENT(in) :: num_pes ! The number of MPI processes we have |
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| 365 | ! |
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| 366 | INTEGER, PARAMETER :: nfactmax = 20 |
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| 367 | INTEGER :: nfact ! The no. of factors returned |
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| 368 | INTEGER :: ierr ! Error flag |
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| 369 | INTEGER :: ji |
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| 370 | INTEGER :: idiff, mindiff, imin ! For choosing pair of factors that are closest in value |
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| 371 | INTEGER, DIMENSION(nfactmax) :: ifact ! Array of factors |
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| 372 | !!---------------------------------------------------------------------- |
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| 373 | ! |
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| 374 | ierr = 0 |
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| 375 | ! |
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| 376 | CALL factorise( ifact, nfactmax, nfact, num_pes, ierr ) |
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| 377 | ! |
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| 378 | IF( nfact <= 1 ) THEN |
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| 379 | WRITE (numout, *) 'WARNING: factorisation of number of PEs failed' |
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| 380 | WRITE (numout, *) ' : using grid of ',num_pes,' x 1' |
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| 381 | jpnj = 1 |
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| 382 | jpni = num_pes |
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| 383 | ELSE |
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| 384 | ! Search through factors for the pair that are closest in value |
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| 385 | mindiff = 1000000 |
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| 386 | imin = 1 |
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| 387 | DO ji = 1, nfact-1, 2 |
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| 388 | idiff = ABS( ifact(ji) - ifact(ji+1) ) |
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| 389 | IF( idiff < mindiff ) THEN |
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| 390 | mindiff = idiff |
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| 391 | imin = ji |
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| 392 | ENDIF |
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| 393 | END DO |
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| 394 | jpnj = ifact(imin) |
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| 395 | jpni = ifact(imin + 1) |
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| 396 | ENDIF |
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| 397 | ! |
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| 398 | jpnij = jpni*jpnj |
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| 399 | ! |
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| 400 | END SUBROUTINE nemo_partition |
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| 401 | |
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| 402 | |
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| 403 | SUBROUTINE factorise( kfax, kmaxfax, knfax, kn, kerr ) |
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| 404 | !!---------------------------------------------------------------------- |
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| 405 | !! *** ROUTINE factorise *** |
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| 406 | !! |
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| 407 | !! ** Purpose : return the prime factors of n. |
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| 408 | !! knfax factors are returned in array kfax which is of |
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| 409 | !! maximum dimension kmaxfax. |
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| 410 | !! ** Method : |
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| 411 | !!---------------------------------------------------------------------- |
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| 412 | INTEGER , INTENT(in ) :: kn, kmaxfax |
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| 413 | INTEGER , INTENT( out) :: kerr, knfax |
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| 414 | INTEGER, DIMENSION(kmaxfax), INTENT( out) :: kfax |
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| 415 | ! |
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| 416 | INTEGER :: ifac, jl, inu |
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| 417 | INTEGER, PARAMETER :: ntest = 14 |
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| 418 | INTEGER, DIMENSION(ntest) :: ilfax |
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| 419 | !!---------------------------------------------------------------------- |
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| 420 | ! |
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| 421 | ! lfax contains the set of allowed factors. |
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| 422 | ilfax(:) = (/(2**jl,jl=ntest,1,-1)/) |
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| 423 | ! |
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| 424 | ! Clear the error flag and initialise output vars |
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| 425 | kerr = 0 |
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| 426 | kfax = 1 |
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| 427 | knfax = 0 |
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| 428 | ! |
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| 429 | ! Find the factors of n. |
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| 430 | IF( kn == 1 ) GOTO 20 |
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| 431 | |
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| 432 | ! nu holds the unfactorised part of the number. |
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| 433 | ! knfax holds the number of factors found. |
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| 434 | ! l points to the allowed factor list. |
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| 435 | ! ifac holds the current factor. |
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| 436 | ! |
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| 437 | inu = kn |
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| 438 | knfax = 0 |
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| 439 | ! |
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| 440 | DO jl = ntest, 1, -1 |
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| 441 | ! |
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| 442 | ifac = ilfax(jl) |
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| 443 | IF( ifac > inu ) CYCLE |
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| 444 | |
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| 445 | ! Test whether the factor will divide. |
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| 446 | |
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| 447 | IF( MOD(inu,ifac) == 0 ) THEN |
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| 448 | ! |
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| 449 | knfax = knfax + 1 ! Add the factor to the list |
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| 450 | IF( knfax > kmaxfax ) THEN |
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| 451 | kerr = 6 |
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| 452 | write (*,*) 'FACTOR: insufficient space in factor array ', knfax |
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| 453 | return |
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| 454 | ENDIF |
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| 455 | kfax(knfax) = ifac |
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| 456 | ! Store the other factor that goes with this one |
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| 457 | knfax = knfax + 1 |
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| 458 | kfax(knfax) = inu / ifac |
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| 459 | !WRITE (*,*) 'ARPDBG, factors ',knfax-1,' & ',knfax,' are ', kfax(knfax-1),' and ',kfax(knfax) |
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| 460 | ENDIF |
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| 461 | ! |
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| 462 | END DO |
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| 463 | ! |
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| 464 | 20 CONTINUE ! Label 20 is the exit point from the factor search loop. |
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| 465 | ! |
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| 466 | END SUBROUTINE factorise |
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| 467 | |
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| 468 | |
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| 469 | SUBROUTINE nemo_northcomms |
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| 470 | !!---------------------------------------------------------------------- |
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| 471 | !! *** ROUTINE nemo_northcomms *** |
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| 472 | !! ** Purpose : Setup for north fold exchanges with explicit |
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| 473 | !! point-to-point messaging |
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| 474 | !! |
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| 475 | !! ** Method : Initialization of the northern neighbours lists. |
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| 476 | !!---------------------------------------------------------------------- |
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| 477 | !! 1.0 ! 2011-10 (A. C. Coward, NOCS & J. Donners, PRACE) |
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| 478 | !! 2.0 ! 2013-06 Setup avoiding MPI communication (I. Epicoco, S. Mocavero, CMCC) |
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| 479 | !!---------------------------------------------------------------------- |
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| 480 | INTEGER :: sxM, dxM, sxT, dxT, jn |
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| 481 | INTEGER :: njmppmax |
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| 482 | !!---------------------------------------------------------------------- |
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| 483 | ! |
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| 484 | njmppmax = MAXVAL( njmppt ) |
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| 485 | ! |
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| 486 | !initializes the north-fold communication variables |
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| 487 | isendto(:) = 0 |
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| 488 | nsndto = 0 |
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| 489 | ! |
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| 490 | !if I am a process in the north |
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| 491 | IF ( njmpp == njmppmax ) THEN |
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| 492 | !sxM is the first point (in the global domain) needed to compute the |
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| 493 | !north-fold for the current process |
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| 494 | sxM = jpiglo - nimppt(narea) - nlcit(narea) + 1 |
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| 495 | !dxM is the last point (in the global domain) needed to compute the |
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| 496 | !north-fold for the current process |
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| 497 | dxM = jpiglo - nimppt(narea) + 2 |
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| 498 | |
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| 499 | !loop over the other north-fold processes to find the processes |
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| 500 | !managing the points belonging to the sxT-dxT range |
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| 501 | |
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| 502 | DO jn = 1, jpni |
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| 503 | !sxT is the first point (in the global domain) of the jn |
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| 504 | !process |
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| 505 | sxT = nfiimpp(jn, jpnj) |
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| 506 | !dxT is the last point (in the global domain) of the jn |
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| 507 | !process |
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| 508 | dxT = nfiimpp(jn, jpnj) + nfilcit(jn, jpnj) - 1 |
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| 509 | IF ((sxM .gt. sxT) .AND. (sxM .lt. dxT)) THEN |
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| 510 | nsndto = nsndto + 1 |
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| 511 | isendto(nsndto) = jn |
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| 512 | ELSEIF ((sxM .le. sxT) .AND. (dxM .ge. dxT)) THEN |
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| 513 | nsndto = nsndto + 1 |
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| 514 | isendto(nsndto) = jn |
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| 515 | ELSEIF ((dxM .lt. dxT) .AND. (sxT .lt. dxM)) THEN |
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| 516 | nsndto = nsndto + 1 |
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| 517 | isendto(nsndto) = jn |
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| 518 | END IF |
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| 519 | END DO |
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| 520 | nfsloop = 1 |
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| 521 | nfeloop = nlci |
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| 522 | DO jn = 2,jpni-1 |
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| 523 | IF(nfipproc(jn,jpnj) .eq. (narea - 1)) THEN |
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| 524 | IF (nfipproc(jn - 1 ,jpnj) .eq. -1) THEN |
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| 525 | nfsloop = nldi |
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| 526 | ENDIF |
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| 527 | IF (nfipproc(jn + 1,jpnj) .eq. -1) THEN |
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| 528 | nfeloop = nlei |
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| 529 | ENDIF |
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| 530 | ENDIF |
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| 531 | END DO |
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| 532 | |
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| 533 | ENDIF |
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| 534 | l_north_nogather = .TRUE. |
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| 535 | END SUBROUTINE nemo_northcomms |
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| 536 | |
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| 537 | |
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| 538 | !!====================================================================== |
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| 539 | END PROGRAM make_domain_cfg |
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