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nemogcm.F90 in NEMO/trunk/src/OFF – NEMO

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source: NEMO/trunk/src/OFF/nemogcm.F90 @ 13558

Last change on this file since 13558 was 13558, checked in by smasson, 4 years ago
trunk: pass sette tests with debugging option -init=arrays,snan,huge, see #2535
Property svn:keywords set to `Id`
File size: 26.4 KB

Rev	Line
[2574]	1	MODULE nemogcm
	2	!!======================================================================
	3	!! * MODULE nemogcm *
	4	!! Off-line Ocean : passive tracer evolution, dynamics read in files
	5	!!======================================================================
	6	!! History : 3.3 ! 2010-05 (C. Ethe) Full reorganization of the off-line: phasing with the on-line
[7646]	7	!! 3.4 ! 2011-01 (C. Ethe, A. R. Porter, STFC Daresbury) dynamical allocation
	8	!! 4.0 ! 2016-10 (C. Ethe, G. Madec, S. Flavoni) domain configuration / user defined interface
[12377]	9	!! 4.1 ! 2019-08 (A. Coward, D. Storkey) rewrite in preparation for new timestepping scheme
[2574]	10	!!----------------------------------------------------------------------
	11
	12	!!----------------------------------------------------------------------
[9213]	13	!! nemo_gcm : off-line: solve ocean tracer only
	14	!! nemo_gcm : solve ocean dynamics, tracer, biogeochemistry and/or sea-ice
	15	!! nemo_init : initialization of the NEMO system
	16	!! nemo_ctl : initialisation of the contol print
	17	!! nemo_closefile: close remaining open files
	18	!! nemo_alloc : dynamical allocation
	19	!! istate_init : simple initialization to zero of ocean fields
	20	!! stp_ctl : reduced step control (no dynamics in off-line)
[2574]	21	!!----------------------------------------------------------------------
[9213]	22	USE dom_oce ! ocean space domain variables
	23	USE oce ! dynamics and tracers variables
	24	USE trc_oce ! Shared ocean/passive tracers variables
	25	USE c1d ! 1D configuration
	26	USE domain ! domain initialization from coordinate & bathymetry (dom_init routine)
	27	USE closea ! treatment of closed seas (for ln_closea)
	28	USE usrdef_nam ! user defined configuration
	29	USE eosbn2 ! equation of state (eos bn2 routine)
[13237]	30	#if defined key_qco
	31	USE domqco ! tools for scale factor (dom_qco_r3c routine)
	32	#endif
[13286]	33	USE bdyini ! open boundary cond. setting (bdy_init routine)
[2574]	34	! ! ocean physics
[9213]	35	USE ldftra ! lateral diffusivity setting (ldf_tra_init routine)
	36	USE ldfslp ! slopes of neutral surfaces (ldf_slp_init routine)
[9751]	37	USE traqsr ! solar radiation penetration (tra_qsr_init routine)
[9213]	38	USE trabbl ! bottom boundary layer (tra_bbl_init routine)
	39	USE traldf ! lateral physics (tra_ldf_init routine)
	40	USE sbcmod ! surface boundary condition (sbc_init routine)
	41	USE phycst ! physical constant (par_cst routine)
[13558]	42	USE zdfphy ! vertical physics manager (zdf_phy_init routine)
[9213]	43	USE dtadyn ! Lecture and Interpolation of the dynamical fields
	44	USE trcini ! Initilization of the passive tracers
	45	USE daymod ! calendar (day routine)
	46	USE trcstp ! passive tracer time-stepping (trc_stp routine)
	47	USE dtadyn ! Lecture and interpolation of the dynamical fields
[7646]	48	! ! Passive tracers needs
[9213]	49	USE trc ! passive tracer : variables
	50	USE trcnam ! passive tracer : namelist
	51	USE trcrst ! passive tracer restart
	52	USE sbc_oce , ONLY : ln_rnf
	53	USE sbcrnf ! surface boundary condition : runoffs
[2574]	54	! ! I/O & MPP
[9213]	55	USE iom ! I/O library
	56	USE in_out_manager ! I/O manager
	57	USE mppini ! shared/distributed memory setting (mpp_init routine)
	58	USE lib_mpp ! distributed memory computing
[2574]	59	#if defined key_iomput
[9213]	60	USE xios ! xIOserver
[2574]	61	#endif
[9213]	62	USE prtctl ! Print control (prt_ctl_init routine)
	63	USE timing ! Timing
	64	USE lib_fortran ! Fortran utilities (allows no signed zero when 'key_nosignedzero' defined)
[13286]	65	USE lbcnfd , ONLY : isendto, nsndto ! Setup of north fold exchanges
[12377]	66	USE step, ONLY : Nbb, Nnn, Naa, Nrhs ! time level indices
[13286]	67	USE halo_mng
[2574]	68
	69	IMPLICIT NONE
	70	PRIVATE
	71
	72	PUBLIC nemo_gcm ! called by nemo.F90
	73
	74	CHARACTER (len=64) :: cform_aaa="( /, 'AAAAAAAA', / ) " ! flag for output listing
[13555]	75	#if defined key_mpp_mpi
	76	! need MPI_Wtime
	77	INCLUDE 'mpif.h'
	78	#endif
[2574]	79
	80	!!----------------------------------------------------------------------
[9213]	81	!! NEMO/OFF 4.0 , NEMO Consortium (2018)
[5215]	82	!! $Id$
[10068]	83	!! Software governed by the CeCILL license (see ./LICENSE)
[2574]	84	!!----------------------------------------------------------------------
	85	CONTAINS
	86
	87	SUBROUTINE nemo_gcm
	88	!!----------------------------------------------------------------------
	89	!! * ROUTINE nemo_gcm *
	90	!!
[9213]	91	!! ** Purpose : NEMO solves the primitive equations on an orthogonal
	92	!! curvilinear mesh on the sphere.
[2574]	93	!!
	94	!! ** Method : - model general initialization
	95	!! - launch the time-stepping (dta_dyn and trc_stp)
	96	!! - finalize the run by closing files and communications
	97	!!
	98	!! References : Madec, Delecluse,Imbard, and Levy, 1997: internal report, IPSL.
	99	!! Madec, 2008, internal report, IPSL.
	100	!!----------------------------------------------------------------------
[12933]	101	INTEGER :: istp ! time step index
[13555]	102	REAL(wp):: zstptiming ! elapsed time for 1 time step
[2574]	103	!!----------------------------------------------------------------------
	104
	105	CALL nemo_init ! Initializations
	106
	107	! check that all process are still there... If some process have an error,
	108	! they will never enter in step and other processes will wait until the end of the cpu time!
[10425]	109	CALL mpp_max( 'nemogcm', nstop )
[2574]	110
	111	! !-----------------------!
	112	! !== time stepping ==!
	113	! !-----------------------!
	114	istp = nit000
[6140]	115	!
[9213]	116	IF( ln_rnf ) CALL sbc_rnf(istp) ! runoffs initialization
[3827]	117	!
[9213]	118	CALL iom_init( cxios_context ) ! iom_put initialization (must be done after nemo_init for AGRIF+XIOS+OASIS)
[3827]	119	!
[9213]	120	DO WHILE ( istp <= nitend .AND. nstop == 0 ) !== OFF time-stepping ==!
[13555]	121
	122	IF( ln_timing ) THEN
	123	zstptiming = MPI_Wtime()
	124	IF ( istp == ( nit000 + 1 ) ) elapsed_time = zstptiming
	125	IF ( istp == nitend ) elapsed_time = zstptiming - elapsed_time
	126	ENDIF
[2574]	127	!
[7646]	128	IF( istp /= nit000 ) CALL day ( istp ) ! Calendar (day was already called at nit000 in day_init)
[9539]	129	CALL iom_setkt ( istp - nit000 + 1, cxios_context ) ! say to iom that we are at time step kstp
[10222]	130	#if defined key_sed_off
[12377]	131	CALL dta_dyn_sed( istp, Nnn ) ! Interpolation of the dynamical fields
[10222]	132	#else
[12377]	133	CALL dta_dyn ( istp, Nbb, Nnn, Naa ) ! Interpolation of the dynamical fields
[12026]	134	#endif
[13237]	135	#if ! defined key_sed_off
	136	IF( .NOT.ln_linssh ) THEN
	137	CALL dta_dyn_atf( istp, Nbb, Nnn, Naa ) ! time filter of sea surface height and vertical scale factors
	138	# if defined key_qco
	139	CALL dom_qco_r3c( ssh(:,:,Kmm), r3t_f, r3u_f, r3v_f )
	140	# endif
	141	ENDIF
[12377]	142	CALL trc_stp ( istp, Nbb, Nnn, Nrhs, Naa ) ! time-stepping
[13237]	143	# if defined key_qco
	144	!r3t(:,:,Kmm) = r3t_f(:,:) ! update ssh to h0 ratio
	145	!r3u(:,:,Kmm) = r3u_f(:,:)
	146	!r3v(:,:,Kmm) = r3v_f(:,:)
	147	# endif
[10222]	148	#endif
[12377]	149	! Swap time levels
	150	Nrhs = Nbb
	151	Nbb = Nnn
	152	Nnn = Naa
	153	Naa = Nrhs
	154	!
[13237]	155	#if ! defined key_qco
[12377]	156	#if ! defined key_sed_off
	157	IF( .NOT.ln_linssh ) CALL dta_dyn_sf_interp( istp, Nnn ) ! calculate now grid parameters
	158	#endif
[13237]	159	#endif
[13555]	160	CALL stp_ctl ( istp ) ! Time loop: control and print
[2574]	161	istp = istp + 1
[13555]	162
	163	IF( lwp .AND. ln_timing ) WRITE(numtime,*) 'timing step ', istp-1, ' : ', MPI_Wtime() - zstptiming
	164
[2574]	165	END DO
[9213]	166	!
[3769]	167	#if defined key_iomput
[5504]	168	CALL iom_context_finalize( cxios_context ) ! needed for XIOS+AGRIF
[3769]	169	#endif
[2574]	170
	171	! !------------------------!
	172	! !== finalize the run ==!
	173	! !------------------------!
	174	IF(lwp) WRITE(numout,cform_aaa) ! Flag AAAAAAA
	175
	176	IF( nstop /= 0 .AND. lwp ) THEN ! error print
[11536]	177	WRITE(ctmp1,*) ' ==>>> nemo_gcm: a total of ', nstop, ' errors have been found'
[13011]	178	WRITE(ctmp2,) ' Look for "E R R O R" messages in all existing ocean_output files'
	179	CALL ctl_stop( ' ', ctmp1, ' ', ctmp2 )
[2574]	180	ENDIF
	181	!
[9124]	182	IF( ln_timing ) CALL timing_finalize
[3294]	183	!
[2574]	184	CALL nemo_closefile
	185	!
[9213]	186	#if defined key_iomput
	187	CALL xios_finalize ! end mpp communications with xios
	188	#else
	189	IF( lk_mpp ) CALL mppstop ! end mpp communications
	190	#endif
[2574]	191	!
[11536]	192	IF(lwm) THEN
	193	IF( nstop == 0 ) THEN ; STOP 0
	194	ELSE ; STOP 123
	195	ENDIF
	196	ENDIF
	197	!
[2574]	198	END SUBROUTINE nemo_gcm
	199
	200
	201	SUBROUTINE nemo_init
	202	!!----------------------------------------------------------------------
[9213]	203	!! * ROUTINE nemo_init *
[2574]	204	!!
	205	!! ** Purpose : initialization of the nemo model in off-line mode
	206	!!----------------------------------------------------------------------
[11536]	207	INTEGER :: ios, ilocal_comm ! local integers
[2574]	208	!!
[13286]	209	NAMELIST/namctl/ sn_cfctl, ln_timing, ln_diacfl, &
	210	& nn_isplt, nn_jsplt, nn_ictls, nn_ictle, nn_jctls, nn_jctle
[9213]	211	NAMELIST/namcfg/ ln_read_cfg, cn_domcfg, ln_closea, ln_write_cfg, cn_domcfg_out, ln_use_jattr
[2574]	212	!!----------------------------------------------------------------------
[9213]	213	!
[5407]	214	cxios_context = 'nemo'
[13286]	215	nn_hls = 1
[3716]	216	!
[11536]	217	! !-------------------------------------------------!
	218	! ! set communicator & select the local rank !
	219	! ! must be done as soon as possible to get narea !
	220	! !-------------------------------------------------!
[2574]	221	!
[11536]	222	#if defined key_iomput
	223	CALL xios_initialize( "for_xios_mpi_id", return_comm=ilocal_comm ) ! nemo local communicator given by xios
	224	CALL mpp_start( ilocal_comm )
	225	#else
	226	CALL mpp_start( )
	227	#endif
	228	!
	229	narea = mpprank + 1 ! mpprank: the rank of proc (0 --> mppsize -1 )
	230	lwm = (narea == 1) ! control of output namelists
	231	!
	232	! !---------------------------------------------------------------!
	233	! ! Open output files, reference and configuration namelist files !
	234	! !---------------------------------------------------------------!
	235	!
	236	! open ocean.output as soon as possible to get all output prints (including errors messages)
	237	IF( lwm ) CALL ctl_opn( numout, 'ocean.output', 'REPLACE', 'FORMATTED', 'SEQUENTIAL', -1, -1, .FALSE. )
	238	! open reference and configuration namelist files
[12377]	239	CALL load_nml( numnam_ref, 'namelist_ref', -1, lwm )
	240	CALL load_nml( numnam_cfg, 'namelist_cfg', -1, lwm )
[11536]	241	IF( lwm ) CALL ctl_opn( numond, 'output.namelist.dyn', 'REPLACE', 'FORMATTED', 'SEQUENTIAL', -1, -1, .FALSE. )
	242	! open /dev/null file to be able to supress output write easily
[12641]	243	IF( Agrif_Root() ) THEN
[11536]	244	CALL ctl_opn( numnul, '/dev/null', 'REPLACE', 'FORMATTED', 'SEQUENTIAL', -1, -1, .FALSE. )
[12641]	245	#ifdef key_agrif
	246	ELSE
	247	numnul = Agrif_Parent(numnul)
	248	#endif
	249	ENDIF
[11536]	250	!
	251	! !--------------------!
[12377]	252	! ! Open listing units ! -> need sn_cfctl from namctl to define lwp
[11536]	253	! !--------------------!
	254	!
[4147]	255	READ ( numnam_ref, namctl, IOSTAT = ios, ERR = 901 )
[11536]	256	901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namctl in reference namelist' )
[4147]	257	READ ( numnam_cfg, namctl, IOSTAT = ios, ERR = 902 )
[11536]	258	902 IF( ios > 0 ) CALL ctl_nam ( ios , 'namctl in configuration namelist' )
[4147]	259	!
[12377]	260	! finalize the definition of namctl variables
[12933]	261	IF( narea < sn_cfctl%procmin .OR. narea > sn_cfctl%procmax .OR. MOD( narea - sn_cfctl%procmin, sn_cfctl%procincr ) /= 0 ) &
	262	& CALL nemo_set_cfctl( sn_cfctl, .FALSE. )
[7646]	263	!
[12377]	264	lwp = (narea == 1) .OR. sn_cfctl%l_oceout ! control of all listing output print
	265	!
[2574]	266	IF(lwp) THEN ! open listing units
	267	!
[11536]	268	IF( .NOT. lwm ) & ! alreay opened for narea == 1
	269	& CALL ctl_opn( numout, 'ocean.output', 'REPLACE', 'FORMATTED', 'SEQUENTIAL', -1, -1, .FALSE., narea )
[2574]	270	!
	271	WRITE(numout,*)
[11536]	272	WRITE(numout,*) ' CNRS - NERC - Met OFFICE - MERCATOR-ocean - CMCC'
[2574]	273	WRITE(numout,*) ' NEMO team'
[9213]	274	WRITE(numout,*) ' Off-line TOP Model'
[10570]	275	WRITE(numout,*) ' NEMO version 4.0 (2019) '
[2574]	276	WRITE(numout,*)
[10570]	277	WRITE(numout,*) " ._ ._ ._ ._ ._ "
	278	WRITE(numout,*) " _.-._)`\_.-._)`\_.-._)`\_.-._)`\_.-._)`\_ "
[2574]	279	WRITE(numout,*)
[10570]	280	WRITE(numout,*) " o _, _, "
	281	WRITE(numout,*) " o .' ( .-' / "
	282	WRITE(numout,*) " o _/..._'. .' / "
	283	WRITE(numout,*) " ( o .-'` ` '-./ _.' "
	284	WRITE(numout,*) " ) ( o) ;= <_ ( "
	285	WRITE(numout,*) " ( '-.,\\__ __.-;`\ '. ) "
	286	WRITE(numout,*) " ) ) \) \|`\ \) '. \ ( ( "
	287	WRITE(numout,*) " ( ( \_/ '-._\ ) ) "
	288	WRITE(numout,*) " ) ) ` ( ( "
	289	WRITE(numout,*) " ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ "
	290	WRITE(numout,*)
[2574]	291	!
[9213]	292	WRITE(numout,cform_aaa) ! Flag AAAAAAA
	293	!
[2574]	294	ENDIF
[10457]	295	!
[11536]	296	IF(lwm) WRITE( numond, namctl )
	297	!
	298	! !------------------------------------!
	299	! ! Set global domain size parameters !
	300	! !------------------------------------!
	301	!
	302	READ ( numnam_ref, namcfg, IOSTAT = ios, ERR = 903 )
	303	903 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namcfg in reference namelist' )
	304	READ ( numnam_cfg, namcfg, IOSTAT = ios, ERR = 904 )
	305	904 IF( ios > 0 ) CALL ctl_nam ( ios , 'namcfg in configuration namelist' )
	306	!
	307	IF( ln_read_cfg ) THEN ! Read sizes in domain configuration file
[13286]	308	CALL domain_cfg ( cn_cfg, nn_cfg, Ni0glo, Nj0glo, jpkglo, jperio )
[11536]	309	ELSE ! user-defined namelist
[13286]	310	CALL usr_def_nam( cn_cfg, nn_cfg, Ni0glo, Nj0glo, jpkglo, jperio )
[11536]	311	ENDIF
	312	!
	313	IF(lwm) WRITE( numond, namcfg )
	314	l_offline = .true. ! passive tracers are run offline
	315	!
	316	! !-----------------------------------------!
	317	! ! mpp parameters and domain decomposition !
	318	! !-----------------------------------------!
	319	!
	320	CALL mpp_init
[2715]	321
[13286]	322	CALL halo_mng_init()
[9213]	323	! Now we know the dimensions of the grid and numout has been set: we can allocate arrays
[2715]	324	CALL nemo_alloc()
	325
[12377]	326	! Initialise time level indices
	327	Nbb = 1; Nnn = 2; Naa = 3; Nrhs = Naa
	328
[9213]	329	! !-------------------------------!
	330	! ! NEMO general initialization !
	331	! !-------------------------------!
[2574]	332
[9213]	333	CALL nemo_ctl ! Control prints
[2574]	334	!
[9213]	335	! ! General initialization
[9019]	336	IF( ln_timing ) CALL timing_init
	337	IF( ln_timing ) CALL timing_start( 'nemo_init')
[3294]	338	!
[9367]	339	CALL phy_cst ! Physical constants
	340	CALL eos_init ! Equation of state
	341	IF( lk_c1d ) CALL c1d_init ! 1D column configuration
[12377]	342	CALL dom_init( Nbb, Nnn, Naa, "OPA") ! Domain
	343	IF( sn_cfctl%l_prtctl ) &
	344	& CALL prt_ctl_init ! Print control
[7646]	345
[12377]	346	CALL istate_init( Nnn, Naa ) ! ocean initial state (Dynamics and tracers)
[7646]	347
[12377]	348	CALL sbc_init( Nbb, Nnn, Naa ) ! Forcings : surface module
[13558]	349	CALL bdy_init ! Open boundaries initialisation
	350
	351	CALL zdf_phy_init( Nnn ) ! Vertical physics
[2574]	352
[9213]	353	! ! Tracer physics
	354	CALL ldf_tra_init ! Lateral ocean tracer physics
[13558]	355	CALL ldf_eiv_init ! Eddy induced velocity param. must be done after ldf_tra_init
[9213]	356	CALL tra_ldf_init ! lateral mixing
	357	IF( l_ldfslp ) CALL ldf_slp_init ! slope of lateral mixing
[9751]	358	IF( ln_traqsr ) CALL tra_qsr_init ! penetrative solar radiation
[9213]	359	IF( ln_trabbl ) CALL tra_bbl_init ! advective (and/or diffusive) bottom boundary layer scheme
[2715]	360
[9213]	361	! ! Passive tracers
[9019]	362	CALL trc_nam_run ! Needed to get restart parameters for passive tracers
	363	CALL trc_rst_cal( nit000, 'READ' ) ! calendar
[10222]	364	#if defined key_sed_off
[12377]	365	CALL dta_dyn_sed_init( Nnn ) ! Initialization for the dynamics
[10222]	366	#else
[12377]	367	CALL dta_dyn_init( Nbb, Nnn, Naa ) ! Initialization for the dynamics
[10222]	368	#endif
[12377]	369	CALL trc_init( Nbb, Nnn, Naa ) ! Passive tracers initialization
[9213]	370
[5504]	371	IF(lwp) WRITE(numout,cform_aaa) ! Flag AAAAAAA
[4749]	372	!
[9019]	373	IF( ln_timing ) CALL timing_stop( 'nemo_init')
[3294]	374	!
[2574]	375	END SUBROUTINE nemo_init
	376
	377
	378	SUBROUTINE nemo_ctl
	379	!!----------------------------------------------------------------------
	380	!! * ROUTINE nemo_ctl *
	381	!!
[7646]	382	!! ** Purpose : control print setting
[2574]	383	!!
[12377]	384	!! ** Method : - print namctl and namcfg information and check some consistencies
[2574]	385	!!----------------------------------------------------------------------
	386	!
[7646]	387	IF(lwp) THEN ! control print
[2574]	388	WRITE(numout,*)
[7646]	389	WRITE(numout,*) 'nemo_ctl: Control prints'
[9213]	390	WRITE(numout,*) '~~~~~~~~'
[2574]	391	WRITE(numout,*) ' Namelist namctl'
[10570]	392	WRITE(numout,*) ' sn_cfctl%l_runstat = ', sn_cfctl%l_runstat
	393	WRITE(numout,*) ' sn_cfctl%l_trcstat = ', sn_cfctl%l_trcstat
	394	WRITE(numout,*) ' sn_cfctl%l_oceout = ', sn_cfctl%l_oceout
	395	WRITE(numout,*) ' sn_cfctl%l_layout = ', sn_cfctl%l_layout
[12377]	396	WRITE(numout,*) ' sn_cfctl%l_prtctl = ', sn_cfctl%l_prtctl
	397	WRITE(numout,*) ' sn_cfctl%l_prttrc = ', sn_cfctl%l_prttrc
	398	WRITE(numout,*) ' sn_cfctl%l_oasout = ', sn_cfctl%l_oasout
[10570]	399	WRITE(numout,*) ' sn_cfctl%procmin = ', sn_cfctl%procmin
	400	WRITE(numout,*) ' sn_cfctl%procmax = ', sn_cfctl%procmax
	401	WRITE(numout,*) ' sn_cfctl%procincr = ', sn_cfctl%procincr
	402	WRITE(numout,*) ' sn_cfctl%ptimincr = ', sn_cfctl%ptimincr
[9019]	403	WRITE(numout,*) ' timing by routine ln_timing = ', ln_timing
	404	WRITE(numout,*) ' CFL diagnostics ln_diacfl = ', ln_diacfl
[2574]	405	ENDIF
[7646]	406
[13286]	407	IF( .NOT.ln_read_cfg ) ln_closea = .false. ! dealing possible only with a domcfg file
[7646]	408	IF(lwp) THEN ! control print
[4147]	409	WRITE(numout,*)
	410	WRITE(numout,*) ' Namelist namcfg'
[9213]	411	WRITE(numout,*) ' read domain configuration file ln_read_cfg = ', ln_read_cfg
[7646]	412	WRITE(numout,*) ' filename to be read cn_domcfg = ', TRIM(cn_domcfg)
[9436]	413	WRITE(numout,*) ' keep closed seas in the domain (if exist) ln_closea = ', ln_closea
[9213]	414	WRITE(numout,*) ' create a configuration definition file ln_write_cfg = ', ln_write_cfg
[7646]	415	WRITE(numout,*) ' filename to be written cn_domcfg_out = ', TRIM(cn_domcfg_out)
	416	WRITE(numout,*) ' use file attribute if exists as i/p j-start ln_use_jattr = ', ln_use_jattr
[4147]	417	ENDIF
[9213]	418	!
	419	IF( 1._wp /= SIGN(1._wp,-0._wp) ) CALL ctl_stop( 'nemo_ctl: The intrinsec SIGN function follows f2003 standard.', &
	420	& 'Compile with key_nosignedzero enabled' )
[3764]	421	!
[2574]	422	END SUBROUTINE nemo_ctl
	423
	424
	425	SUBROUTINE nemo_closefile
	426	!!----------------------------------------------------------------------
	427	!! * ROUTINE nemo_closefile *
	428	!!
	429	!! ** Purpose : Close the files
	430	!!----------------------------------------------------------------------
	431	!
[9213]	432	IF( lk_mpp ) CALL mppsync
[2574]	433	!
	434	CALL iom_close ! close all input/output files managed by iom_*
	435	!
	436	IF( numstp /= -1 ) CLOSE( numstp ) ! time-step file
[7646]	437	IF( lwm.AND.numond /= -1 ) CLOSE( numond ) ! oce output namelist
[9213]	438	!
[2574]	439	numout = 6 ! redefine numout in case it is used after this point...
	440	!
	441	END SUBROUTINE nemo_closefile
	442
[2715]	443
	444	SUBROUTINE nemo_alloc
	445	!!----------------------------------------------------------------------
	446	!! * ROUTINE nemo_alloc *
	447	!!
	448	!! ** Purpose : Allocate all the dynamic arrays of the OPA modules
	449	!!
	450	!! ** Method :
	451	!!----------------------------------------------------------------------
[9213]	452	USE diawri , ONLY : dia_wri_alloc
	453	USE dom_oce, ONLY : dom_oce_alloc
	454	USE zdf_oce, ONLY : zdf_oce_alloc
	455	USE trc_oce, ONLY : trc_oce_alloc
[12843]	456	USE bdy_oce, ONLY : bdy_oce_alloc
[2715]	457	!
	458	INTEGER :: ierr
	459	!!----------------------------------------------------------------------
	460	!
[9213]	461	ierr = oce_alloc () ! ocean
	462	ierr = ierr + dia_wri_alloc()
	463	ierr = ierr + dom_oce_alloc() ! ocean domain
	464	ierr = ierr + zdf_oce_alloc() ! ocean vertical physics
	465	ierr = ierr + trc_oce_alloc() ! shared TRC / TRA arrays
[12843]	466	ierr = ierr + bdy_oce_alloc() ! bdy masks (incl. initialization)
[2715]	467	!
[10425]	468	CALL mpp_sum( 'nemogcm', ierr )
[2715]	469	IF( ierr /= 0 ) CALL ctl_stop( 'STOP', 'nemo_alloc: unable to allocate standard ocean arrays' )
	470	!
	471	END SUBROUTINE nemo_alloc
	472
[12933]	473	SUBROUTINE nemo_set_cfctl(sn_cfctl, setto )
[10570]	474	!!----------------------------------------------------------------------
	475	!! * ROUTINE nemo_set_cfctl *
	476	!!
	477	!! ** Purpose : Set elements of the output control structure to setto.
[12933]	478	!!
[10570]	479	!! ** Method : Note this routine can be used to switch on/off some
[12933]	480	!! types of output for selected areas.
[10570]	481	!!----------------------------------------------------------------------
[12933]	482	TYPE(sn_ctl), INTENT(inout) :: sn_cfctl
	483	LOGICAL , INTENT(in ) :: setto
[10570]	484	!!----------------------------------------------------------------------
[12933]	485	sn_cfctl%l_runstat = setto
	486	sn_cfctl%l_trcstat = setto
[10570]	487	sn_cfctl%l_oceout = setto
	488	sn_cfctl%l_layout = setto
[12377]	489	sn_cfctl%l_prtctl = setto
	490	sn_cfctl%l_prttrc = setto
	491	sn_cfctl%l_oasout = setto
[10570]	492	END SUBROUTINE nemo_set_cfctl
	493
[12377]	494	SUBROUTINE istate_init( Kmm, Kaa )
[5504]	495	!!----------------------------------------------------------------------
	496	!! * ROUTINE istate_init *
	497	!!
	498	!! ** Purpose : Initialization to zero of the dynamics and tracers.
	499	!!----------------------------------------------------------------------
[12377]	500	INTEGER, INTENT(in) :: Kmm, Kaa ! ocean time level indices
[5504]	501	!
	502	! now fields ! after fields !
[12377]	503	uu (:,:,:,Kmm) = 0._wp ; uu(:,:,:,Kaa) = 0._wp !
	504	vv (:,:,:,Kmm) = 0._wp ; vv(:,:,:,Kaa) = 0._wp !
	505	ww (:,:,:) = 0._wp ! !
	506	hdiv (:,:,:) = 0._wp ! !
	507	ts (:,:,:,:,Kmm) = 0._wp ! !
[5504]	508	!
	509	rhd (:,:,:) = 0.e0
	510	rhop (:,:,:) = 0.e0
	511	rn2 (:,:,:) = 0.e0
	512	!
	513	END SUBROUTINE istate_init
	514
[9213]	515
[12933]	516	SUBROUTINE stp_ctl( kt )
[5504]	517	!!----------------------------------------------------------------------
	518	!! * ROUTINE stp_ctl *
	519	!!
	520	!! ** Purpose : Control the run
	521	!!
	522	!! ** Method : - Save the time step in numstp
	523	!!
	524	!! ** Actions : 'time.step' file containing the last ocean time-step
	525	!!----------------------------------------------------------------------
	526	INTEGER, INTENT(in ) :: kt ! ocean time-step index
	527	!!----------------------------------------------------------------------
	528	!
[10425]	529	IF( kt == nit000 .AND. lwm ) THEN
[5504]	530	WRITE(numout,*)
	531	WRITE(numout,*) 'stp_ctl : time-stepping control'
	532	WRITE(numout,*) '~~~~~~~'
	533	! open time.step file
	534	CALL ctl_opn( numstp, 'time.step', 'REPLACE', 'FORMATTED', 'SEQUENTIAL', -1, numout, lwp, narea )
	535	ENDIF
	536	!
[10425]	537	IF(lwm) WRITE ( numstp, '(1x, i8)' ) kt !* save the current time step in numstp
	538	IF(lwm) REWIND( numstp ) ! --------------------------
[5504]	539	!
	540	END SUBROUTINE stp_ctl
[2574]	541	!!======================================================================
	542	END MODULE nemogcm

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