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nemogcm.F90 in branches/2013/dev_CMCC_INGV_2013/NEMOGCM/NEMO/OPA_SRC – NEMO

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source: branches/2013/dev_CMCC_INGV_2013/NEMOGCM/NEMO/OPA_SRC/nemogcm.F90 @ 4382

Last change on this file since 4382 was 4201, checked in by poddo, 11 years ago
ticket #1178 Merge of CMCC-INGV 2013 branches
Property svn:keywords set to `Id`
File size: 34.4 KB

Rev	Line
[2496]	1	MODULE nemogcm
[2442]	2	!!======================================================================
[2496]	3	!! * MODULE nemogcm *
	4	!! Ocean system : NEMO GCM (ocean dynamics, on-line tracers, biochemistry and sea-ice)
[2442]	5	!!======================================================================
[1593]	6	!! History : OPA ! 1990-10 (C. Levy, G. Madec) Original code
	7	!! 7.0 ! 1991-11 (M. Imbard, C. Levy, G. Madec)
[3764]	8	!! 7.1 ! 1993-03 (M. Imbard, C. Levy, G. Madec, O. Marti, M. Guyon, A. Lazar,
	9	!! P. Delecluse, C. Perigaud, G. Caniaux, B. Colot, C. Maes) release 7.1
[1593]	10	!! - ! 1992-06 (L.Terray) coupling implementation
[3764]	11	!! - ! 1993-11 (M.A. Filiberti) IGLOO sea-ice
	12	!! 8.0 ! 1996-03 (M. Imbard, C. Levy, G. Madec, O. Marti, M. Guyon, A. Lazar,
[2104]	13	!! P. Delecluse, L.Terray, M.A. Filiberti, J. Vialar, A.M. Treguier, M. Levy) release 8.0
[1593]	14	!! 8.1 ! 1997-06 (M. Imbard, G. Madec)
[3764]	15	!! 8.2 ! 1999-11 (M. Imbard, H. Goosse) LIM sea-ice model
	16	!! ! 1999-12 (V. Thierry, A-M. Treguier, M. Imbard, M-A. Foujols) OPEN-MP
[1593]	17	!! ! 2000-07 (J-M Molines, M. Imbard) Open Boundary Conditions (CLIPPER)
	18	!! NEMO 1.0 ! 2002-08 (G. Madec) F90: Free form and modules
	19	!! - ! 2004-06 (R. Redler, NEC CCRLE, Germany) add OASIS[3/4] coupled interfaces
	20	!! - ! 2004-08 (C. Talandier) New trends organization
	21	!! - ! 2005-06 (C. Ethe) Add the 1D configuration possibility
	22	!! - ! 2005-11 (V. Garnier) Surface pressure gradient organization
	23	!! - ! 2006-03 (L. Debreu, C. Mazauric) Agrif implementation
	24	!! - ! 2006-04 (G. Madec, R. Benshila) Step reorganization
	25	!! - ! 2007-07 (J. Chanut, A. Sellar) Unstructured open boundaries (BDY)
	26	!! 3.2 ! 2009-08 (S. Masson) open/write in the listing file in mpp
[3764]	27	!! 3.3 ! 2010-05 (K. Mogensen, A. Weaver, M. Martin, D. Lea) Assimilation interface
[2236]	28	!! - ! 2010-10 (C. Ethe, G. Madec) reorganisation of initialisation phase
[3294]	29	!! 3.3.1! 2011-01 (A. R. Porter, STFC Daresbury) dynamical allocation
	30	!! 3.4 ! 2011-11 (C. Harris) decomposition changes for running with CICE
[1593]	31	!!----------------------------------------------------------------------
[3]	32
	33	!!----------------------------------------------------------------------
[2496]	34	!! nemo_gcm : solve ocean dynamics, tracer, biogeochemistry and/or sea-ice
	35	!! nemo_init : initialization of the NEMO system
[3764]	36	!! nemo_ctl : initialisation of the contol print
[2496]	37	!! nemo_closefile : close remaining open files
[2715]	38	!! nemo_alloc : dynamical allocation
	39	!! nemo_partition : calculate MPP domain decomposition
	40	!! factorise : calculate the factors of the no. of MPI processes
[3]	41	!!----------------------------------------------------------------------
[2382]	42	USE step_oce ! module used in the ocean time stepping module
[888]	43	USE sbc_oce ! surface boundary condition: ocean
[2392]	44	USE cla ! cross land advection (tra_cla routine)
[3]	45	USE domcfg ! domain configuration (dom_cfg routine)
	46	USE mppini ! shared/distributed memory setting (mpp_init routine)
	47	USE domain ! domain initialization (dom_init routine)
[3625]	48	#if defined key_nemocice_decomp
	49	USE ice_domain_size, only: nx_global, ny_global
	50	#endif
[3651]	51	USE tideini ! tidal components initialization (tide_ini routine)
[3]	52	USE obcini ! open boundary cond. initialization (obc_ini routine)
[3294]	53	USE bdyini ! open boundary cond. initialization (bdy_init routine)
	54	USE bdydta ! open boundary cond. initialization (bdy_dta_init routine)
[3651]	55	USE bdytides ! open boundary cond. initialization (bdytide_init routine)
[3]	56	USE istate ! initial state setting (istate_init routine)
	57	USE ldfdyn ! lateral viscosity setting (ldfdyn_init routine)
	58	USE ldftra ! lateral diffusivity setting (ldftra_init routine)
[2392]	59	USE zdfini ! vertical physics setting (zdf_init routine)
[3]	60	USE phycst ! physical constant (par_cst routine)
[2236]	61	USE trdmod ! momentum/tracers trends (trd_mod_init routine)
[3768]	62	USE asminc ! assimilation increments
	63	USE asmbkg ! writing out state trajectory
[2236]	64	USE diaptr ! poleward transports (dia_ptr_init routine)
[3294]	65	USE diadct ! sections transports (dia_dct_init routine)
[2236]	66	USE diaobs ! Observation diagnostics (dia_obs_init routine)
[3764]	67	USE lib_fortran ! Fortran utilities (allows no signed zero when 'key_nosignedzero' defined)
[2496]	68	USE step ! NEMO time-stepping (stp routine)
[3609]	69	USE icbini ! handle bergs, initialisation
	70	USE icbstp ! handle bergs, calving, themodynamics and transport
[532]	71	#if defined key_oasis3
[1359]	72	USE cpl_oasis3 ! OASIS3 coupling
[599]	73	#elif defined key_oasis4
[1359]	74	USE cpl_oasis4 ! OASIS4 coupling (not working)
[532]	75	#endif
[900]	76	USE c1d ! 1D configuration
	77	USE step_c1d ! Time stepping loop for the 1D configuration
[1594]	78	#if defined key_top
[1593]	79	USE trcini ! passive tracer initialisation
[1594]	80	#endif
[1593]	81	USE lib_mpp ! distributed memory computing
[1412]	82	#if defined key_iomput
[3701]	83	USE xios
[1359]	84	#endif
[3651]	85	USE sbctide, ONLY: lk_tide
[4201]	86	USE lbcnfd, ONLY: isendto, nsndto ! Setup of north fold exchanges
[268]	87
[2715]	88	IMPLICIT NONE
[3]	89	PRIVATE
	90
[2496]	91	PUBLIC nemo_gcm ! called by model.F90
	92	PUBLIC nemo_init ! needed by AGRIF
[3764]	93	PUBLIC nemo_alloc ! needed by TAM
[467]	94
[2498]	95	CHARACTER(lc) :: cform_aaa="( /, 'AAAAAAAA', / ) " ! flag for output listing
[1593]	96
[3]	97	!!----------------------------------------------------------------------
[2715]	98	!! NEMO/OPA 4.0 , NEMO Consortium (2011)
[2392]	99	!! $Id$
[2329]	100	!! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt)
[3]	101	!!----------------------------------------------------------------------
	102	CONTAINS
	103
[2496]	104	SUBROUTINE nemo_gcm
[3]	105	!!----------------------------------------------------------------------
[2496]	106	!! * ROUTINE nemo_gcm *
[3]	107	!!
[3764]	108	!! ** Purpose : NEMO solves the primitive equations on an orthogonal
[1593]	109	!! curvilinear mesh on the sphere.
[3]	110	!!
	111	!! ** Method : - model general initialization
	112	!! - launch the time-stepping (stp routine)
[1593]	113	!! - finalize the run by closing files and communications
[3]	114	!!
[2715]	115	!! References : Madec, Delecluse, Imbard, and Levy, 1997: internal report, IPSL.
[1593]	116	!! Madec, 2008, internal report, IPSL.
[3]	117	!!----------------------------------------------------------------------
	118	INTEGER :: istp ! time step index
[389]	119	!!----------------------------------------------------------------------
[2382]	120	!
[392]	121	#if defined key_agrif
[1593]	122	CALL Agrif_Init_Grids() ! AGRIF: set the meshes
[389]	123	#endif
	124
[1593]	125	! !-----------------------!
[2496]	126	CALL nemo_init !== Initialisations ==!
[1593]	127	! !-----------------------!
[2715]	128	#if defined key_agrif
[3680]	129	CALL Agrif_Declare_Var_dom ! AGRIF: set the meshes for DOM
	130	CALL Agrif_Declare_Var ! " " " " " DYN/TRA
[2715]	131	# if defined key_top
[3680]	132	CALL Agrif_Declare_Var_top ! " " " " " TOP
[2715]	133	# endif
[3680]	134	# if defined key_lim2
	135	CALL Agrif_Declare_Var_lim2 ! " " " " " LIM
	136	# endif
[2715]	137	#endif
[682]	138	! check that all process are still there... If some process have an error,
	139	! they will never enter in step and other processes will wait until the end of the cpu time!
[900]	140	IF( lk_mpp ) CALL mpp_max( nstop )
[682]	141
[1593]	142	IF(lwp) WRITE(numout,cform_aaa) ! Flag AAAAAAA
	143
	144	! !-----------------------!
	145	! !== time stepping ==!
	146	! !-----------------------!
[900]	147	istp = nit000
[2236]	148	#if defined key_c1d
[389]	149	DO WHILE ( istp <= nitend .AND. nstop == 0 )
[900]	150	CALL stp_c1d( istp )
[389]	151	istp = istp + 1
	152	END DO
[2236]	153	#else
	154	IF( lk_asminc ) THEN
	155	IF( ln_bkgwri ) CALL asm_bkg_wri( nit000 - 1 ) ! Output background fields
	156	IF( ln_asmdin ) THEN ! Direct initialization
	157	IF( ln_trainc ) CALL tra_asm_inc( nit000 - 1 ) ! Tracers
[3764]	158	IF( ln_dyninc ) CALL dyn_asm_inc( nit000 - 1 ) ! Dynamics
[2236]	159	IF( ln_sshinc ) CALL ssh_asm_inc( nit000 - 1 ) ! SSH
	160	ENDIF
	161	ENDIF
[3764]	162
[389]	163	DO WHILE ( istp <= nitend .AND. nstop == 0 )
[392]	164	#if defined key_agrif
[1593]	165	CALL Agrif_Step( stp ) ! AGRIF: time stepping
[389]	166	#else
[1593]	167	CALL stp( istp ) ! standard time stepping
[389]	168	#endif
	169	istp = istp + 1
[900]	170	IF( lk_mpp ) CALL mpp_max( nstop )
[389]	171	END DO
[2236]	172	#endif
	173
[3609]	174	IF( lk_diaobs ) CALL dia_obs_wri
	175	!
	176	IF( ln_icebergs ) CALL icb_end( nitend )
[3764]	177
[1593]	178	! !------------------------!
	179	! !== finalize the run ==!
	180	! !------------------------!
	181	IF(lwp) WRITE(numout,cform_aaa) ! Flag AAAAAAA
	182	!
	183	IF( nstop /= 0 .AND. lwp ) THEN ! error print
[682]	184	WRITE(numout,cform_err)
[3764]	185	WRITE(numout,*) nstop, ' error have been found'
[389]	186	ENDIF
[1593]	187	!
[3294]	188	#if defined key_agrif
	189	CALL Agrif_ParentGrid_To_ChildGrid()
	190	IF( lk_diaobs ) CALL dia_obs_wri
	191	IF( nn_timing == 1 ) CALL timing_finalize
	192	CALL Agrif_ChildGrid_To_ParentGrid()
	193	#endif
	194	IF( nn_timing == 1 ) CALL timing_finalize
	195	!
[2496]	196	CALL nemo_closefile
[3769]	197	#if defined key_iomput
	198	CALL xios_finalize ! end mpp communications with xios
	199	# if defined key_oasis3 \|\| defined key_oasis4
[1976]	200	CALL cpl_prism_finalize ! end coupling and mpp communications with OASIS
[3769]	201	# endif
[532]	202	#else
[3769]	203	# if defined key_oasis3 \|\| defined key_oasis4
	204	CALL cpl_prism_finalize ! end coupling and mpp communications with OASIS
[3701]	205	# else
[1593]	206	IF( lk_mpp ) CALL mppstop ! end mpp communications
[3701]	207	# endif
[532]	208	#endif
[900]	209	!
[2496]	210	END SUBROUTINE nemo_gcm
[389]	211
	212
[2496]	213	SUBROUTINE nemo_init
[389]	214	!!----------------------------------------------------------------------
[2496]	215	!! * ROUTINE nemo_init *
[389]	216	!!
[2496]	217	!! ** Purpose : initialization of the NEMO GCM
[389]	218	!!----------------------------------------------------------------------
[2715]	219	INTEGER :: ji ! dummy loop indices
	220	INTEGER :: ilocal_comm ! local integer
	221	CHARACTER(len=80), DIMENSION(16) :: cltxt
[1593]	222	!!
[1601]	223	NAMELIST/namctl/ ln_ctl , nn_print, nn_ictls, nn_ictle, &
[3294]	224	& nn_isplt, nn_jsplt, nn_jctls, nn_jctle, &
	225	& nn_bench, nn_timing
[3]	226	!!----------------------------------------------------------------------
[1593]	227	!
[2496]	228	cltxt = ''
	229	!
[1593]	230	! ! open Namelist file
[1581]	231	CALL ctl_opn( numnam, 'namelist', 'OLD', 'FORMATTED', 'SEQUENTIAL', -1, 6, .FALSE. )
[1593]	232	!
	233	READ( numnam, namctl ) ! Namelist namctl : Control prints & Benchmark
	234	!
	235	! !--------------------------------------------!
	236	! ! set communicator & select the local node !
	237	! !--------------------------------------------!
[1412]	238	#if defined key_iomput
[2200]	239	IF( Agrif_Root() ) THEN
[1412]	240	# if defined key_oasis3 \|\| defined key_oasis4
[3701]	241	CALL cpl_prism_init( ilocal_comm ) ! nemo local communicator given by oasis
	242	CALL xios_initialize( "oceanx",local_comm=ilocal_comm )
	243	# else
	244	CALL xios_initialize( "nemo",return_comm=ilocal_comm )
[1412]	245	# endif
[2200]	246	ENDIF
[2715]	247	narea = mynode( cltxt, numnam, nstop, ilocal_comm ) ! Nodes selection
[532]	248	#else
[1412]	249	# if defined key_oasis3 \|\| defined key_oasis4
[2236]	250	IF( Agrif_Root() ) THEN
[2715]	251	CALL cpl_prism_init( ilocal_comm ) ! nemo local communicator given by oasis
[2236]	252	ENDIF
[2715]	253	narea = mynode( cltxt, numnam, nstop, ilocal_comm ) ! Nodes selection (control print return in cltxt)
[1412]	254	# else
[2082]	255	ilocal_comm = 0
[2715]	256	narea = mynode( cltxt, numnam, nstop ) ! Nodes selection (control print return in cltxt)
[1412]	257	# endif
[532]	258	#endif
[2715]	259	narea = narea + 1 ! mynode return the rank of proc (0 --> jpnij -1 )
[3]	260
[2715]	261	lwp = (narea == 1) .OR. ln_ctl ! control of all listing output print
[1579]	262
[3764]	263	! If dimensions of processor grid weren't specified in the namelist file
[2715]	264	! then we calculate them here now that we have our communicator size
	265	IF( (jpni < 1) .OR. (jpnj < 1) )THEN
	266	#if defined key_mpp_mpi
	267	IF( Agrif_Root() ) CALL nemo_partition(mppsize)
	268	#else
	269	jpni = 1
	270	jpnj = 1
	271	jpnij = jpni*jpnj
	272	#endif
	273	END IF
	274
	275	! Calculate domain dimensions given calculated jpni and jpnj
	276	! This used to be done in par_oce.F90 when they were parameters rather
	277	! than variables
	278	IF( Agrif_Root() ) THEN
[3294]	279	#if defined key_nemocice_decomp
[3625]	280	jpi = ( nx_global+2-2jpreci + (jpni-1) ) / jpni + 2jpreci ! first dim.
	281	jpj = ( ny_global+2-2jprecj + (jpnj-1) ) / jpnj + 2jprecj ! second dim.
[3294]	282	#else
[3625]	283	jpi = ( jpiglo-2jpreci + (jpni-1) ) / jpni + 2jpreci ! first dim.
[2715]	284	jpj = ( jpjglo-2jprecj + (jpnj-1) ) / jpnj + 2jprecj ! second dim.
[3294]	285	#endif
[2715]	286	jpk = jpkdta ! third dim
	287	jpim1 = jpi-1 ! inner domain indices
	288	jpjm1 = jpj-1 ! " "
	289	jpkm1 = jpk-1 ! " "
	290	jpij = jpi*jpj ! jpi x j
	291	ENDIF
	292
[1593]	293	IF(lwp) THEN ! open listing units
	294	!
[1581]	295	CALL ctl_opn( numout, 'ocean.output', 'REPLACE', 'FORMATTED', 'SEQUENTIAL', -1, 6, .FALSE., narea )
[1593]	296	!
[1579]	297	WRITE(numout,*)
[3294]	298	WRITE(numout,*) ' CNRS - NERC - Met OFFICE - MERCATOR-ocean - INGV - CMCC'
[1593]	299	WRITE(numout,*) ' NEMO team'
[1579]	300	WRITE(numout,*) ' Ocean General Circulation Model'
[3294]	301	WRITE(numout,*) ' version 3.4 (2011) '
[1579]	302	WRITE(numout,*)
	303	WRITE(numout,*)
[3764]	304	DO ji = 1, SIZE(cltxt)
[1593]	305	IF( TRIM(cltxt(ji)) /= '' ) WRITE(numout,*) cltxt(ji) ! control print of mynode
[1579]	306	END DO
[1593]	307	WRITE(numout,cform_aaa) ! Flag AAAAAAA
	308	!
[473]	309	ENDIF
[2715]	310
[3764]	311	! Now we know the dimensions of the grid and numout has been set we can
[2715]	312	! allocate arrays
	313	CALL nemo_alloc()
	314
[2496]	315	! !-------------------------------!
	316	! ! NEMO general initialization !
	317	! !-------------------------------!
[473]	318
[2496]	319	CALL nemo_ctl ! Control prints & Benchmark
[531]	320
[2082]	321	! ! Domain decomposition
[1593]	322	IF( jpni*jpnj == jpnij ) THEN ; CALL mpp_init ! standard cutting out
	323	ELSE ; CALL mpp_init2 ! eliminate land processors
[3]	324	ENDIF
[2382]	325	!
[3294]	326	IF( nn_timing == 1 ) CALL timing_init
	327	!
[2082]	328	! ! General initialization
[2027]	329	CALL phy_cst ! Physical constants
	330	CALL eos_init ! Equation of state
	331	CALL dom_cfg ! Domain configuration
	332	CALL dom_init ! Domain
[413]	333
[3294]	334	IF( ln_nnogather ) CALL nemo_northcomms ! Initialise the northfold neighbour lists (must be done after the masks are defined)
	335
[2027]	336	IF( ln_ctl ) CALL prt_ctl_init ! Print control
	337
[3764]	338	IF( lk_obc ) CALL obc_init ! Open boundaries
[3651]	339
	340	CALL istate_init ! ocean initial state (Dynamics and tracers)
	341
	342	IF( lk_tide ) CALL tide_init( nit000 ) ! Initialisation of the tidal harmonics
	343
[3294]	344	IF( lk_bdy ) CALL bdy_init ! Open boundaries initialisation
	345	IF( lk_bdy ) CALL bdy_dta_init ! Open boundaries initialisation of external data arrays
[3651]	346	IF( lk_bdy ) CALL bdytide_init ! Open boundaries initialisation of tidal harmonic forcing
[2027]	347
[3294]	348	CALL dyn_nept_init ! simplified form of Neptune effect
	349
[3]	350	! ! Ocean physics
[3764]	351	CALL sbc_init ! Forcings : surface module
[2082]	352	! ! Vertical physics
	353	CALL zdf_init ! namelist read
	354	CALL zdf_bfr_init ! bottom friction
	355	IF( lk_zdfric ) CALL zdf_ric_init ! Richardson number dependent Kz
[2329]	356	IF( lk_zdftke ) CALL zdf_tke_init ! TKE closure scheme
	357	IF( lk_zdfgls ) CALL zdf_gls_init ! GLS closure scheme
	358	IF( lk_zdfkpp ) CALL zdf_kpp_init ! KPP closure scheme
[2082]	359	IF( lk_zdftmx ) CALL zdf_tmx_init ! tidal vertical mixing
[3764]	360	IF( lk_zdfddm .AND. .NOT. lk_zdfkpp ) &
[2082]	361	& CALL zdf_ddm_init ! double diffusive mixing
	362	! ! Lateral physics
	363	CALL ldf_tra_init ! Lateral ocean tracer physics
	364	CALL ldf_dyn_init ! Lateral ocean momentum physics
[2392]	365	IF( lk_ldfslp ) CALL ldf_slp_init ! slope of lateral mixing
[2082]	366
[2027]	367	! ! Active tracers
	368	CALL tra_qsr_init ! penetrative solar radiation qsr
[2325]	369	CALL tra_bbc_init ! bottom heat flux
[2027]	370	IF( lk_trabbl ) CALL tra_bbl_init ! advective (and/or diffusive) bottom boundary layer scheme
[3294]	371	IF( ln_tradmp ) CALL tra_dmp_init ! internal damping trends
[2027]	372	CALL tra_adv_init ! horizontal & vertical advection
	373	CALL tra_ldf_init ! lateral mixing
	374	CALL tra_zdf_init ! vertical mixing and after tracer fields
	375
	376	! ! Dynamics
	377	CALL dyn_adv_init ! advection (vector or flux form)
[2104]	378	CALL dyn_vor_init ! vorticity term including Coriolis
[2027]	379	CALL dyn_ldf_init ! lateral mixing
[2104]	380	CALL dyn_hpg_init ! horizontal gradient of Hydrostatic pressure
[2027]	381	CALL dyn_zdf_init ! vertical diffusion
	382	CALL dyn_spg_init ! surface pressure gradient
[3764]	383
[2392]	384	! ! Misc. options
	385	IF( nn_cla == 1 ) CALL cla_init ! Cross Land Advection
[3609]	386	CALL icb_init( rdt, nit000) ! initialise icebergs instance
[2392]	387
[1594]	388	#if defined key_top
[2027]	389	! ! Passive tracers
[2082]	390	CALL trc_init
[1594]	391	#endif
[2382]	392	! ! Diagnostics
[3294]	393	IF( lk_floats ) CALL flo_init ! drifting Floats
[2392]	394	IF( lk_diaar5 ) CALL dia_ar5_init ! ar5 diag
[2027]	395	CALL dia_ptr_init ! Poleward TRansports initialization
[3294]	396	IF( lk_diadct ) CALL dia_dct_init ! Sections tranports
[2148]	397	CALL dia_hsb_init ! heat content, salt content and volume budgets
[2027]	398	CALL trd_mod_init ! Mixed-layer/Vorticity/Integral constraints trends
[2392]	399	IF( lk_diaobs ) THEN ! Observation & model comparison
[2382]	400	CALL dia_obs_init ! Initialize observational data
	401	CALL dia_obs( nit000 - 1 ) ! Observation operator for restart
[3764]	402	ENDIF
[2382]	403	! ! Assimilation increments
[2392]	404	IF( lk_asminc ) CALL asm_inc_init ! Initialize assimilation increments
[2382]	405	IF(lwp) WRITE(numout,*) 'Euler time step switch is ', neuler
[1593]	406	!
[2496]	407	END SUBROUTINE nemo_init
[467]	408
	409
[2496]	410	SUBROUTINE nemo_ctl
[467]	411	!!----------------------------------------------------------------------
[2496]	412	!! * ROUTINE nemo_ctl *
[467]	413	!!
[3764]	414	!! ** Purpose : control print setting
[467]	415	!!
[2442]	416	!! ** Method : - print namctl information and check some consistencies
[467]	417	!!----------------------------------------------------------------------
[2442]	418	!
[2496]	419	IF(lwp) THEN ! control print
[531]	420	WRITE(numout,*)
[2496]	421	WRITE(numout,*) 'nemo_ctl: Control prints & Benchmark'
[531]	422	WRITE(numout,*) '~~~~~~~ '
[1593]	423	WRITE(numout,*) ' Namelist namctl'
[1601]	424	WRITE(numout,*) ' run control (for debugging) ln_ctl = ', ln_ctl
	425	WRITE(numout,*) ' level of print nn_print = ', nn_print
	426	WRITE(numout,*) ' Start i indice for SUM control nn_ictls = ', nn_ictls
	427	WRITE(numout,*) ' End i indice for SUM control nn_ictle = ', nn_ictle
	428	WRITE(numout,*) ' Start j indice for SUM control nn_jctls = ', nn_jctls
	429	WRITE(numout,*) ' End j indice for SUM control nn_jctle = ', nn_jctle
	430	WRITE(numout,*) ' number of proc. following i nn_isplt = ', nn_isplt
	431	WRITE(numout,*) ' number of proc. following j nn_jsplt = ', nn_jsplt
	432	WRITE(numout,*) ' benchmark parameter (0/1) nn_bench = ', nn_bench
[3610]	433	WRITE(numout,*) ' timing activated (0/1) nn_timing = ', nn_timing
[531]	434	ENDIF
[2442]	435	!
[1601]	436	nprint = nn_print ! convert DOCTOR namelist names into OLD names
	437	nictls = nn_ictls
	438	nictle = nn_ictle
	439	njctls = nn_jctls
	440	njctle = nn_jctle
	441	isplt = nn_isplt
	442	jsplt = nn_jsplt
	443	nbench = nn_bench
[2442]	444	! ! Parameter control
[1593]	445	!
	446	IF( ln_ctl ) THEN ! sub-domain area indices for the control prints
[3294]	447	IF( lk_mpp .AND. jpnij > 1 ) THEN
[2496]	448	isplt = jpni ; jsplt = jpnj ; ijsplt = jpni*jpnj ! the domain is forced to the real split domain
[531]	449	ELSE
	450	IF( isplt == 1 .AND. jsplt == 1 ) THEN
[1593]	451	CALL ctl_warn( ' - isplt & jsplt are equal to 1', &
	452	& ' - the print control will be done over the whole domain' )
[531]	453	ENDIF
[1593]	454	ijsplt = isplt * jsplt ! total number of processors ijsplt
[531]	455	ENDIF
	456	IF(lwp) WRITE(numout,*)' - The total number of processors over which the'
	457	IF(lwp) WRITE(numout,*)' print control will be done is ijsplt : ', ijsplt
[1593]	458	!
	459	! ! indices used for the SUM control
	460	IF( nictls+nictle+njctls+njctle == 0 ) THEN ! print control done over the default area
[3764]	461	lsp_area = .FALSE.
[1593]	462	ELSE ! print control done over a specific area
[531]	463	lsp_area = .TRUE.
	464	IF( nictls < 1 .OR. nictls > jpiglo ) THEN
	465	CALL ctl_warn( ' - nictls must be 1<=nictls>=jpiglo, it is forced to 1' )
	466	nictls = 1
	467	ENDIF
	468	IF( nictle < 1 .OR. nictle > jpiglo ) THEN
	469	CALL ctl_warn( ' - nictle must be 1<=nictle>=jpiglo, it is forced to jpiglo' )
	470	nictle = jpiglo
	471	ENDIF
	472	IF( njctls < 1 .OR. njctls > jpjglo ) THEN
	473	CALL ctl_warn( ' - njctls must be 1<=njctls>=jpjglo, it is forced to 1' )
	474	njctls = 1
	475	ENDIF
	476	IF( njctle < 1 .OR. njctle > jpjglo ) THEN
	477	CALL ctl_warn( ' - njctle must be 1<=njctle>=jpjglo, it is forced to jpjglo' )
	478	njctle = jpjglo
	479	ENDIF
[1593]	480	ENDIF
	481	ENDIF
[2442]	482	!
[3764]	483	IF( nbench == 1 ) THEN ! Benchmark
[531]	484	SELECT CASE ( cp_cfg )
[1593]	485	CASE ( 'gyre' ) ; CALL ctl_warn( ' The Benchmark is activated ' )
	486	CASE DEFAULT ; CALL ctl_stop( ' The Benchmark is based on the GYRE configuration:', &
	487	& ' key_gyre must be used or set nbench = 0' )
[531]	488	END SELECT
	489	ENDIF
[1593]	490	!
[2496]	491	IF( lk_c1d .AND. .NOT.lk_iomput ) CALL ctl_stop( 'nemo_ctl: The 1D configuration must be used ', &
	492	& 'with the IOM Input/Output manager. ' , &
[2442]	493	& 'Compile with key_iomput enabled' )
[2409]	494	!
[3764]	495	IF( 1_wp /= SIGN(1._wp,-0._wp) ) CALL ctl_stop( 'nemo_ctl: The intrinsec SIGN function follows ', &
	496	& 'f2003 standard. ' , &
	497	& 'Compile with key_nosignedzero enabled' )
	498	!
[2496]	499	END SUBROUTINE nemo_ctl
[467]	500
	501
[2496]	502	SUBROUTINE nemo_closefile
[467]	503	!!----------------------------------------------------------------------
[2496]	504	!! * ROUTINE nemo_closefile *
[467]	505	!!
	506	!! ** Purpose : Close the files
	507	!!----------------------------------------------------------------------
[1593]	508	!
	509	IF( lk_mpp ) CALL mppsync
	510	!
[1685]	511	CALL iom_close ! close all input/output files managed by iom_*
[1593]	512	!
[3294]	513	IF( numstp /= -1 ) CLOSE( numstp ) ! time-step file
	514	IF( numsol /= -1 ) CLOSE( numsol ) ! solver file
	515	IF( numnam /= -1 ) CLOSE( numnam ) ! oce namelist
	516	IF( numnam_ice /= -1 ) CLOSE( numnam_ice ) ! ice namelist
	517	IF( numevo_ice /= -1 ) CLOSE( numevo_ice ) ! ice variables (temp. evolution)
	518	IF( numout /= 6 ) CLOSE( numout ) ! standard model output file
	519	IF( numdct_vol /= -1 ) CLOSE( numdct_vol ) ! volume transports
	520	IF( numdct_heat /= -1 ) CLOSE( numdct_heat ) ! heat transports
	521	IF( numdct_salt /= -1 ) CLOSE( numdct_salt ) ! salt transports
	522
[1593]	523	!
[2442]	524	numout = 6 ! redefine numout in case it is used after this point...
	525	!
[2496]	526	END SUBROUTINE nemo_closefile
[467]	527
[2715]	528
	529	SUBROUTINE nemo_alloc
	530	!!----------------------------------------------------------------------
	531	!! * ROUTINE nemo_alloc *
	532	!!
	533	!! ** Purpose : Allocate all the dynamic arrays of the OPA modules
	534	!!
	535	!! ** Method :
	536	!!----------------------------------------------------------------------
	537	USE diawri , ONLY: dia_wri_alloc
	538	USE dom_oce , ONLY: dom_oce_alloc
	539	USE ldfdyn_oce, ONLY: ldfdyn_oce_alloc
	540	USE ldftra_oce, ONLY: ldftra_oce_alloc
	541	USE trc_oce , ONLY: trc_oce_alloc
[3680]	542	#if defined key_diadct
	543	USE diadct , ONLY: diadct_alloc
	544	#endif
[2715]	545	!
	546	INTEGER :: ierr
	547	!!----------------------------------------------------------------------
	548	!
[3764]	549	ierr = oce_alloc () ! ocean
[2715]	550	ierr = ierr + dia_wri_alloc ()
	551	ierr = ierr + dom_oce_alloc () ! ocean domain
	552	ierr = ierr + ldfdyn_oce_alloc() ! ocean lateral physics : dynamics
	553	ierr = ierr + ldftra_oce_alloc() ! ocean lateral physics : tracers
	554	ierr = ierr + zdf_oce_alloc () ! ocean vertical physics
	555	!
	556	ierr = ierr + lib_mpp_alloc (numout) ! mpp exchanges
	557	ierr = ierr + trc_oce_alloc () ! shared TRC / TRA arrays
	558	!
[3680]	559	#if defined key_diadct
	560	ierr = ierr + diadct_alloc () !
	561	#endif
	562	!
[2715]	563	IF( lk_mpp ) CALL mpp_sum( ierr )
	564	IF( ierr /= 0 ) CALL ctl_stop( 'STOP', 'nemo_alloc : unable to allocate standard ocean arrays' )
	565	!
	566	END SUBROUTINE nemo_alloc
	567
	568
	569	SUBROUTINE nemo_partition( num_pes )
	570	!!----------------------------------------------------------------------
	571	!! * ROUTINE nemo_partition *
	572	!!
[3764]	573	!! ** Purpose :
[2715]	574	!!
	575	!! ** Method :
	576	!!----------------------------------------------------------------------
	577	INTEGER, INTENT(in) :: num_pes ! The number of MPI processes we have
	578	!
	579	INTEGER, PARAMETER :: nfactmax = 20
	580	INTEGER :: nfact ! The no. of factors returned
	581	INTEGER :: ierr ! Error flag
	582	INTEGER :: ji
	583	INTEGER :: idiff, mindiff, imin ! For choosing pair of factors that are closest in value
	584	INTEGER, DIMENSION(nfactmax) :: ifact ! Array of factors
	585	!!----------------------------------------------------------------------
	586
	587	ierr = 0
	588
	589	CALL factorise( ifact, nfactmax, nfact, num_pes, ierr )
	590
	591	IF( nfact <= 1 ) THEN
	592	WRITE (numout, *) 'WARNING: factorisation of number of PEs failed'
	593	WRITE (numout, *) ' : using grid of ',num_pes,' x 1'
	594	jpnj = 1
	595	jpni = num_pes
	596	ELSE
	597	! Search through factors for the pair that are closest in value
	598	mindiff = 1000000
	599	imin = 1
	600	DO ji = 1, nfact-1, 2
	601	idiff = ABS( ifact(ji) - ifact(ji+1) )
	602	IF( idiff < mindiff ) THEN
	603	mindiff = idiff
	604	imin = ji
	605	ENDIF
	606	END DO
	607	jpnj = ifact(imin)
	608	jpni = ifact(imin + 1)
	609	ENDIF
	610	!
	611	jpnij = jpni*jpnj
	612	!
	613	END SUBROUTINE nemo_partition
	614
	615
	616	SUBROUTINE factorise( kfax, kmaxfax, knfax, kn, kerr )
	617	!!----------------------------------------------------------------------
	618	!! * ROUTINE factorise *
	619	!!
	620	!! ** Purpose : return the prime factors of n.
[3764]	621	!! knfax factors are returned in array kfax which is of
[2715]	622	!! maximum dimension kmaxfax.
	623	!! ** Method :
	624	!!----------------------------------------------------------------------
	625	INTEGER , INTENT(in ) :: kn, kmaxfax
	626	INTEGER , INTENT( out) :: kerr, knfax
	627	INTEGER, DIMENSION(kmaxfax), INTENT( out) :: kfax
	628	!
	629	INTEGER :: ifac, jl, inu
	630	INTEGER, PARAMETER :: ntest = 14
	631	INTEGER :: ilfax(ntest)
	632
	633	! lfax contains the set of allowed factors.
	634	data (ilfax(jl),jl=1,ntest) / 16384, 8192, 4096, 2048, 1024, 512, 256, &
	635	& 128, 64, 32, 16, 8, 4, 2 /
	636	!!----------------------------------------------------------------------
	637
	638	! Clear the error flag and initialise output vars
	639	kerr = 0
	640	kfax = 1
	641	knfax = 0
	642
	643	! Find the factors of n.
	644	IF( kn == 1 ) GOTO 20
	645
	646	! nu holds the unfactorised part of the number.
	647	! knfax holds the number of factors found.
	648	! l points to the allowed factor list.
	649	! ifac holds the current factor.
	650
	651	inu = kn
	652	knfax = 0
	653
	654	DO jl = ntest, 1, -1
	655	!
	656	ifac = ilfax(jl)
	657	IF( ifac > inu ) CYCLE
	658
	659	! Test whether the factor will divide.
	660
	661	IF( MOD(inu,ifac) == 0 ) THEN
	662	!
	663	knfax = knfax + 1 ! Add the factor to the list
	664	IF( knfax > kmaxfax ) THEN
	665	kerr = 6
	666	write (,) 'FACTOR: insufficient space in factor array ', knfax
	667	return
	668	ENDIF
	669	kfax(knfax) = ifac
	670	! Store the other factor that goes with this one
	671	knfax = knfax + 1
	672	kfax(knfax) = inu / ifac
	673	!WRITE (,) 'ARPDBG, factors ',knfax-1,' & ',knfax,' are ', kfax(knfax-1),' and ',kfax(knfax)
	674	ENDIF
	675	!
	676	END DO
	677
	678	20 CONTINUE ! Label 20 is the exit point from the factor search loop.
	679	!
	680	END SUBROUTINE factorise
	681
[3294]	682	#if defined key_mpp_mpi
	683	SUBROUTINE nemo_northcomms
	684	!!======================================================================
	685	!! * ROUTINE nemo_northcomms *
[4201]	686	!! nemo_northcomms : Setup for north fold exchanges with explicit
	687	!! point-to-point messaging
[3294]	688	!!=====================================================================
	689	!!----------------------------------------------------------------------
[3764]	690	!!
[3294]	691	!! ** Purpose : Initialization of the northern neighbours lists.
	692	!!----------------------------------------------------------------------
[3764]	693	!! 1.0 ! 2011-10 (A. C. Coward, NOCS & J. Donners, PRACE)
[4201]	694	!! 2.0 ! 2013-06 Setup avoiding MPI communication (I. Epicoco, S. Mocavero, CMCC)
[3294]	695	!!----------------------------------------------------------------------
	696
[4201]	697	INTEGER :: sxM, dxM, sxT, dxT, jn
	698	INTEGER :: njmppmax
[3294]	699
[4201]	700	njmppmax = MAXVAL( njmppt )
	701
	702	!initializes the north-fold communication variables
	703	isendto(:) = 0
[3294]	704	nsndto = 0
	705
[4201]	706	!if I am a process in the north
	707	IF ( njmpp == njmppmax ) THEN
	708	!sxM is the first point (in the global domain) needed to compute the
	709	!north-fold for the current process
	710	sxM = jpiglo - nimppt(narea) - nlcit(narea) + 1
	711	!dxM is the last point (in the global domain) needed to compute the
	712	!north-fold for the current process
	713	dxM = jpiglo - nimppt(narea) + 2
[3294]	714
[4201]	715	!loop over the other north-fold processes to find the processes
	716	!managing the points belonging to the sxT-dxT range
	717	DO jn = jpnij - jpni +1, jpnij
	718	IF ( njmppt(jn) == njmppmax ) THEN
	719	!sxT is the first point (in the global domain) of the jn
	720	!process
	721	sxT = nimppt(jn)
	722	!dxT is the last point (in the global domain) of the jn
	723	!process
	724	dxT = nimppt(jn) + nlcit(jn) - 1
	725	IF ((sxM .gt. sxT) .AND. (sxM .lt. dxT)) THEN
	726	nsndto = nsndto + 1
	727	isendto(nsndto) = jn
	728	ELSEIF ((sxM .le. sxT) .AND. (dxM .gt. dxT)) THEN
	729	nsndto = nsndto + 1
	730	isendto(nsndto) = jn
	731	ELSEIF ((dxM .lt. dxT) .AND. (sxT .lt. dxM)) THEN
	732	nsndto = nsndto + 1
	733	isendto(nsndto) = jn
	734	END IF
	735	END IF
	736	END DO
[3294]	737	ENDIF
[4201]	738	l_north_nogather = .TRUE.
[3294]	739	END SUBROUTINE nemo_northcomms
	740	#else
	741	SUBROUTINE nemo_northcomms ! Dummy routine
	742	WRITE(,) 'nemo_northcomms: You should not have seen this print! error?'
	743	END SUBROUTINE nemo_northcomms
	744	#endif
[3]	745	!!======================================================================
[2496]	746	END MODULE nemogcm

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