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nemogcm.F90

Last change on this file was 15280, checked in by jwhile, 3 years ago
Merged in changes for 1d detailed in utils ticket 487
File size: 41.4 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
[15280]	31	!! ! 2012-05 (C. Calone, J. Simeon, G. Madec, C. Ethe) Add grid coarsening
[1593]	32	!!----------------------------------------------------------------------
[3]	33
	34	!!----------------------------------------------------------------------
[2496]	35	!! nemo_gcm : solve ocean dynamics, tracer, biogeochemistry and/or sea-ice
	36	!! nemo_init : initialization of the NEMO system
[3764]	37	!! nemo_ctl : initialisation of the contol print
[2496]	38	!! nemo_closefile : close remaining open files
[2715]	39	!! nemo_alloc : dynamical allocation
	40	!! nemo_partition : calculate MPP domain decomposition
	41	!! factorise : calculate the factors of the no. of MPI processes
[3]	42	!!----------------------------------------------------------------------
[2382]	43	USE step_oce ! module used in the ocean time stepping module
[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)
[4990]	52	USE bdyini ! open boundary cond. setting (bdy_init routine)
	53	USE bdydta ! open boundary cond. setting (bdy_dta_init routine)
	54	USE bdytides ! open boundary cond. setting (bdytide_init routine)
[3]	55	USE istate ! initial state setting (istate_init routine)
	56	USE ldfdyn ! lateral viscosity setting (ldfdyn_init routine)
	57	USE ldftra ! lateral diffusivity setting (ldftra_init routine)
[2392]	58	USE zdfini ! vertical physics setting (zdf_init routine)
[3]	59	USE phycst ! physical constant (par_cst routine)
[4990]	60	USE trdini ! dyn/tra trends initialization (trd_init routine)
[15280]	61	USE asminc ! assimilation increments
[3768]	62	USE asmbkg ! writing out state trajectory
[10302]	63	USE asmbgc ! biogeochemical assimilation increments
[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
[15280]	71	USE sbccpl
[1359]	72	USE cpl_oasis3 ! OASIS3 coupling
[900]	73	USE c1d ! 1D configuration
	74	USE step_c1d ! Time stepping loop for the 1D configuration
[4245]	75	USE dyndmp ! Momentum damping
[1594]	76	#if defined key_top
[1593]	77	USE trcini ! passive tracer initialisation
[8280]	78	USE trc, ONLY: numstr ! tracer stats unit number
[1594]	79	#endif
[1593]	80	USE lib_mpp ! distributed memory computing
[1412]	81	#if defined key_iomput
[3701]	82	USE xios
[1359]	83	#endif
[3651]	84	USE sbctide, ONLY: lk_tide
[4152]	85	USE crsini ! initialise grid coarsening utility
[15280]	86	USE lbcnfd, ONLY: isendto, nsndto, nfsloop, nfeloop ! Setup of north fold exchanges
[5407]	87	USE sbc_oce, ONLY: lk_oasis
[11442]	88	USE stopack
[5329]	89	USE stopar
	90	USE stopts
[268]	91
[2715]	92	IMPLICIT NONE
[3]	93	PRIVATE
	94
[2496]	95	PUBLIC nemo_gcm ! called by model.F90
	96	PUBLIC nemo_init ! needed by AGRIF
[3764]	97	PUBLIC nemo_alloc ! needed by TAM
[467]	98
[2498]	99	CHARACTER(lc) :: cform_aaa="( /, 'AAAAAAAA', / ) " ! flag for output listing
[1593]	100
[3]	101	!!----------------------------------------------------------------------
[2715]	102	!! NEMO/OPA 4.0 , NEMO Consortium (2011)
[2392]	103	!! $Id$
[2329]	104	!! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt)
[3]	105	!!----------------------------------------------------------------------
	106	CONTAINS
	107
[2496]	108	SUBROUTINE nemo_gcm
[3]	109	!!----------------------------------------------------------------------
[2496]	110	!! * ROUTINE nemo_gcm *
[3]	111	!!
[3764]	112	!! ** Purpose : NEMO solves the primitive equations on an orthogonal
[1593]	113	!! curvilinear mesh on the sphere.
[3]	114	!!
	115	!! ** Method : - model general initialization
	116	!! - launch the time-stepping (stp routine)
[1593]	117	!! - finalize the run by closing files and communications
[3]	118	!!
[2715]	119	!! References : Madec, Delecluse, Imbard, and Levy, 1997: internal report, IPSL.
[1593]	120	!! Madec, 2008, internal report, IPSL.
[3]	121	!!----------------------------------------------------------------------
	122	INTEGER :: istp ! time step index
[389]	123	!!----------------------------------------------------------------------
[2382]	124	!
[392]	125	#if defined key_agrif
[1593]	126	CALL Agrif_Init_Grids() ! AGRIF: set the meshes
[389]	127	#endif
	128
[1593]	129	! !-----------------------!
[2496]	130	CALL nemo_init !== Initialisations ==!
[1593]	131	! !-----------------------!
[2715]	132	#if defined key_agrif
[3680]	133	CALL Agrif_Declare_Var_dom ! AGRIF: set the meshes for DOM
[15280]	134	CALL Agrif_Declare_Var ! " " " " " DYN/TRA
[2715]	135	# if defined key_top
[3680]	136	CALL Agrif_Declare_Var_top ! " " " " " TOP
[2715]	137	# endif
[3680]	138	# if defined key_lim2
	139	CALL Agrif_Declare_Var_lim2 ! " " " " " LIM
	140	# endif
[2715]	141	#endif
[682]	142	! check that all process are still there... If some process have an error,
	143	! they will never enter in step and other processes will wait until the end of the cpu time!
[900]	144	IF( lk_mpp ) CALL mpp_max( nstop )
[682]	145
[1593]	146	IF(lwp) WRITE(numout,cform_aaa) ! Flag AAAAAAA
	147
	148	! !-----------------------!
	149	! !== time stepping ==!
	150	! !-----------------------!
[900]	151	istp = nit000
[15280]	152
[2236]	153	#if defined key_c1d
[15280]	154
	155	IF( lk_asminc ) THEN
	156	IF( ln_bkgwri ) CALL asm_bkg_wri( nit000 - 1 ) ! Output background fields
	157	IF( ln_asmdin ) THEN ! Direct initialization
	158	IF( ln_trainc ) CALL tra_asm_inc( nit000 - 1 ) ! Tracers
	159	ENDIF
	160	ENDIF
	161
	162	DO WHILE ( istp <= nitend .AND. nstop == 0 )
	163	CALL stp_c1d( istp )
	164	istp = istp + 1
	165	END DO
[2236]	166	#else
[3764]	167
[15280]	168	IF( lk_asminc ) THEN
	169	IF( ln_bkgwri ) CALL asm_bkg_wri( nit000 - 1 ) ! Output background fields
	170	IF( ln_asmdin ) THEN ! Direct initialization
	171	IF( ln_trainc ) CALL tra_asm_inc( nit000 - 1 ) ! Tracers
	172	IF( ln_dyninc ) CALL dyn_asm_inc( nit000 - 1 ) ! Dynamics
	173	IF( ln_sshinc ) CALL ssh_asm_inc( nit000 - 1 ) ! SSH
	174	IF( lk_bgcinc ) CALL bgc_asm_inc( nit000 - 1 ) ! BGC
	175	ENDIF
	176	ENDIF
	177
[6487]	178	#if defined key_agrif
[15280]	179	CALL Agrif_Regrid()
[6487]	180	#endif
	181
[15280]	182	DO WHILE ( istp <= nitend .AND. nstop == 0 )
[392]	183	#if defined key_agrif
[15280]	184	CALL stp ! AGRIF: time stepping
[389]	185	#else
[15280]	186	IF (lk_oasis) CALL sbc_cpl_snd( istp ) ! Coupling to atmos
	187	CALL stp( istp )
[8280]	188	! We don't couple on the final timestep because
	189	! our restart file has already been written
	190	! and contains all the necessary data for a
	191	! restart. sbc_cpl_snd could be called here
	192	! but it would require
	193	! a) A test to ensure it was not performed
	194	! on the very last time-step
	195	! b) the presence of another call to
	196	! sbc_cpl_snd call prior to the main DO loop
	197	! This solution produces identical results
[15280]	198	! with fewer lines of code.
[389]	199	#endif
[15280]	200	istp = istp + 1
	201	IF( lk_mpp ) CALL mpp_max( nstop )
	202	END DO
[2236]	203	#endif
	204
[3609]	205	IF( lk_diaobs ) CALL dia_obs_wri
	206	!
[10302]	207	IF( ( lk_asminc ).AND.( ln_balwri ) ) CALL asm_bgc_bal_wri( nitend ) ! Output balancing increments
	208	!
[3609]	209	IF( ln_icebergs ) CALL icb_end( nitend )
[3764]	210
[1593]	211	! !------------------------!
	212	! !== finalize the run ==!
	213	! !------------------------!
	214	IF(lwp) WRITE(numout,cform_aaa) ! Flag AAAAAAA
	215	!
	216	IF( nstop /= 0 .AND. lwp ) THEN ! error print
[682]	217	WRITE(numout,cform_err)
[3764]	218	WRITE(numout,*) nstop, ' error have been found'
[389]	219	ENDIF
[1593]	220	!
[3294]	221	#if defined key_agrif
[6487]	222	IF( .NOT. Agrif_Root() ) THEN
	223	CALL Agrif_ParentGrid_To_ChildGrid()
	224	IF( lk_diaobs ) CALL dia_obs_wri
[10302]	225	IF( nn_timing > 0 ) CALL timing_finalize
[6487]	226	CALL Agrif_ChildGrid_To_ParentGrid()
	227	ENDIF
[3294]	228	#endif
[10302]	229	IF( nn_timing > 0 ) CALL timing_finalize
[3294]	230	!
[2496]	231	CALL nemo_closefile
[4990]	232	!
[3769]	233	#if defined key_iomput
	234	CALL xios_finalize ! end mpp communications with xios
[5407]	235	IF( lk_oasis ) CALL cpl_finalize ! end coupling and mpp communications with OASIS
[532]	236	#else
[15280]	237	IF( lk_oasis ) THEN
[4990]	238	CALL cpl_finalize ! end coupling and mpp communications with OASIS
	239	ELSE
	240	IF( lk_mpp ) CALL mppstop ! end mpp communications
	241	ENDIF
[532]	242	#endif
[900]	243	!
[8400]	244	! Met Office addition: if failed, return non-zero exit code
[15280]	245	IF( nstop /= 0 ) CALL exit( 9 )
[8400]	246	!
[2496]	247	END SUBROUTINE nemo_gcm
[389]	248
	249
[2496]	250	SUBROUTINE nemo_init
[389]	251	!!----------------------------------------------------------------------
[2496]	252	!! * ROUTINE nemo_init *
[389]	253	!!
[2496]	254	!! ** Purpose : initialization of the NEMO GCM
[389]	255	!!----------------------------------------------------------------------
[2715]	256	INTEGER :: ji ! dummy loop indices
	257	INTEGER :: ilocal_comm ! local integer
[4147]	258	INTEGER :: ios
[2715]	259	CHARACTER(len=80), DIMENSION(16) :: cltxt
[4990]	260	!
	261	NAMELIST/namctl/ ln_ctl , nn_print, nn_ictls, nn_ictle, &
[3294]	262	& nn_isplt, nn_jsplt, nn_jctls, nn_jctle, &
	263	& nn_bench, nn_timing
[4147]	264	NAMELIST/namcfg/ cp_cfg, cp_cfz, jp_cfg, jpidta, jpjdta, jpkdta, jpiglo, jpjglo, &
[5118]	265	& jpizoom, jpjzoom, jperio, ln_use_jattr
[3]	266	!!----------------------------------------------------------------------
[1593]	267	!
[2496]	268	cltxt = ''
[5407]	269	cxios_context = 'nemo'
[2496]	270	!
[4147]	271	! ! Open reference namelist and configuration namelist files
	272	CALL ctl_opn( numnam_ref, 'namelist_ref', 'OLD', 'FORMATTED', 'SEQUENTIAL', -1, 6, .FALSE. )
	273	CALL ctl_opn( numnam_cfg, 'namelist_cfg', 'OLD', 'FORMATTED', 'SEQUENTIAL', -1, 6, .FALSE. )
[1593]	274	!
[4147]	275	REWIND( numnam_ref ) ! Namelist namctl in reference namelist : Control prints & Benchmark
	276	READ ( numnam_ref, namctl, IOSTAT = ios, ERR = 901 )
[4289]	277	901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namctl in reference namelist', .TRUE. )
[4147]	278
	279	REWIND( numnam_cfg ) ! Namelist namctl in confguration namelist : Control prints & Benchmark
	280	READ ( numnam_cfg, namctl, IOSTAT = ios, ERR = 902 )
[4289]	281	902 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namctl in configuration namelist', .TRUE. )
[4147]	282
[1593]	283	!
[4147]	284	REWIND( numnam_ref ) ! Namelist namcfg in reference namelist : Control prints & Benchmark
	285	READ ( numnam_ref, namcfg, IOSTAT = ios, ERR = 903 )
[4289]	286	903 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namcfg in reference namelist', .TRUE. )
[4147]	287
	288	REWIND( numnam_cfg ) ! Namelist namcfg in confguration namelist : Control prints & Benchmark
	289	READ ( numnam_cfg, namcfg, IOSTAT = ios, ERR = 904 )
[15280]	290	904 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namcfg in configuration namelist', .TRUE. )
[4309]	291
[4147]	292	! Force values for AGRIF zoom (cf. agrif_user.F90)
	293	#if defined key_agrif
	294	IF( .NOT. Agrif_Root() ) THEN
	295	jpiglo = nbcellsx + 2 + 2*nbghostcells
	296	jpjglo = nbcellsy + 2 + 2*nbghostcells
	297	jpi = ( jpiglo-2jpreci + (jpni-1+0) ) / jpni + 2jpreci
	298	jpj = ( jpjglo-2jprecj + (jpnj-1+0) ) / jpnj + 2jprecj
	299	jpidta = jpiglo
	300	jpjdta = jpjglo
	301	jpizoom = 1
	302	jpjzoom = 1
	303	nperio = 0
	304	jperio = 0
[5118]	305	ln_use_jattr = .false.
[4147]	306	ENDIF
	307	#endif
	308	!
[1593]	309	! !--------------------------------------------!
	310	! ! set communicator & select the local node !
[4624]	311	! ! NB: mynode also opens output.namelist.dyn !
	312	! ! on unit number numond on first proc !
[1593]	313	! !--------------------------------------------!
[1412]	314	#if defined key_iomput
[2200]	315	IF( Agrif_Root() ) THEN
[5407]	316	IF( lk_oasis ) THEN
[8280]	317	CALL cpl_init( "toyoce", ilocal_comm ) ! nemo local communicator given by oasis
[5407]	318	CALL xios_initialize( "not used",local_comm=ilocal_comm ) ! send nemo communicator to xios
[4990]	319	ELSE
[5407]	320	CALL xios_initialize( "for_xios_mpi_id",return_comm=ilocal_comm ) ! nemo local communicator given by xios
[4990]	321	ENDIF
[2200]	322	ENDIF
[5407]	323	! Nodes selection (control print return in cltxt)
	324	narea = mynode( cltxt, 'output.namelist.dyn', numnam_ref, numnam_cfg, numond , nstop, ilocal_comm )
[532]	325	#else
[5407]	326	IF( lk_oasis ) THEN
[4990]	327	IF( Agrif_Root() ) THEN
[8280]	328	CALL cpl_init( "toyoce", ilocal_comm ) ! nemo local communicator given by oasis
[4990]	329	ENDIF
[5407]	330	! Nodes selection (control print return in cltxt)
	331	narea = mynode( cltxt, 'output.namelist.dyn', numnam_ref, numnam_cfg, numond , nstop, ilocal_comm )
[4990]	332	ELSE
	333	ilocal_comm = 0
[5407]	334	! Nodes selection (control print return in cltxt)
	335	narea = mynode( cltxt, 'output.namelist.dyn', numnam_ref, numnam_cfg, numond , nstop )
[2236]	336	ENDIF
[532]	337	#endif
[2715]	338	narea = narea + 1 ! mynode return the rank of proc (0 --> jpnij -1 )
[3]	339
[4624]	340	lwm = (narea == 1) ! control of output namelists
[2715]	341	lwp = (narea == 1) .OR. ln_ctl ! control of all listing output print
[1579]	342
[4624]	343	IF(lwm) THEN
	344	! write merged namelists from earlier to output namelist now that the
	345	! file has been opened in call to mynode. nammpp has already been
	346	! written in mynode (if lk_mpp_mpi)
	347	WRITE( numond, namctl )
	348	WRITE( numond, namcfg )
	349	ENDIF
	350
[3764]	351	! If dimensions of processor grid weren't specified in the namelist file
[2715]	352	! then we calculate them here now that we have our communicator size
	353	IF( (jpni < 1) .OR. (jpnj < 1) )THEN
	354	#if defined key_mpp_mpi
	355	IF( Agrif_Root() ) CALL nemo_partition(mppsize)
	356	#else
	357	jpni = 1
	358	jpnj = 1
	359	jpnij = jpni*jpnj
	360	#endif
	361	END IF
	362
	363	! Calculate domain dimensions given calculated jpni and jpnj
	364	! This used to be done in par_oce.F90 when they were parameters rather
	365	! than variables
	366	IF( Agrif_Root() ) THEN
[3294]	367	#if defined key_nemocice_decomp
[3625]	368	jpi = ( nx_global+2-2jpreci + (jpni-1) ) / jpni + 2jpreci ! first dim.
[15280]	369	jpj = ( ny_global+2-2jprecj + (jpnj-1) ) / jpnj + 2jprecj ! second dim.
[3294]	370	#else
[3625]	371	jpi = ( jpiglo-2jpreci + (jpni-1) ) / jpni + 2jpreci ! first dim.
[2715]	372	jpj = ( jpjglo-2jprecj + (jpnj-1) ) / jpnj + 2jprecj ! second dim.
[3294]	373	#endif
[15280]	374	ENDIF
[2715]	375	jpk = jpkdta ! third dim
[6487]	376	#if defined key_agrif
	377	! simple trick to use same vertical grid as parent
[15280]	378	! but different number of levels:
[6487]	379	! Save maximum number of levels in jpkdta, then define all vertical grids
	380	! with this number.
	381	! Suppress once vertical online interpolation is ok
	382	IF(.NOT.Agrif_Root()) jpkdta = Agrif_Parent(jpkdta)
	383	#endif
[2715]	384	jpim1 = jpi-1 ! inner domain indices
	385	jpjm1 = jpj-1 ! " "
	386	jpkm1 = jpk-1 ! " "
	387	jpij = jpi*jpj ! jpi x j
	388
[1593]	389	IF(lwp) THEN ! open listing units
	390	!
[1581]	391	CALL ctl_opn( numout, 'ocean.output', 'REPLACE', 'FORMATTED', 'SEQUENTIAL', -1, 6, .FALSE., narea )
[1593]	392	!
[1579]	393	WRITE(numout,*)
[3294]	394	WRITE(numout,*) ' CNRS - NERC - Met OFFICE - MERCATOR-ocean - INGV - CMCC'
[1593]	395	WRITE(numout,*) ' NEMO team'
[1579]	396	WRITE(numout,*) ' Ocean General Circulation Model'
[5120]	397	WRITE(numout,*) ' version 3.6 (2015) '
[1579]	398	WRITE(numout,*)
	399	WRITE(numout,*)
[3764]	400	DO ji = 1, SIZE(cltxt)
[1593]	401	IF( TRIM(cltxt(ji)) /= '' ) WRITE(numout,*) cltxt(ji) ! control print of mynode
[1579]	402	END DO
[1593]	403	WRITE(numout,cform_aaa) ! Flag AAAAAAA
	404	!
[473]	405	ENDIF
[2715]	406
[3764]	407	! Now we know the dimensions of the grid and numout has been set we can
[2715]	408	! allocate arrays
	409	CALL nemo_alloc()
	410
[2496]	411	! !-------------------------------!
	412	! ! NEMO general initialization !
	413	! !-------------------------------!
[473]	414
[2496]	415	CALL nemo_ctl ! Control prints & Benchmark
[531]	416
[2082]	417	! ! Domain decomposition
[1593]	418	IF( jpni*jpnj == jpnij ) THEN ; CALL mpp_init ! standard cutting out
	419	ELSE ; CALL mpp_init2 ! eliminate land processors
[3]	420	ENDIF
[2382]	421	!
[10302]	422	IF( nn_timing > 0 ) CALL timing_init
[3294]	423	!
[2082]	424	! ! General initialization
[2027]	425	CALL phy_cst ! Physical constants
	426	CALL eos_init ! Equation of state
[4245]	427	IF( lk_c1d ) CALL c1d_init ! 1D column configuration
[2027]	428	CALL dom_cfg ! Domain configuration
	429	CALL dom_init ! Domain
[413]	430
[3294]	431	IF( ln_nnogather ) CALL nemo_northcomms ! Initialise the northfold neighbour lists (must be done after the masks are defined)
	432
[2027]	433	IF( ln_ctl ) CALL prt_ctl_init ! Print control
	434
[3651]	435	CALL istate_init ! ocean initial state (Dynamics and tracers)
	436
[4292]	437	IF( lk_tide ) CALL tide_init( nit000 ) ! Initialisation of the tidal harmonics
[3651]	438
[5123]	439	CALL sbc_init ! Forcings : surface module (clem: moved here for bdy purpose)
	440
[4990]	441	IF( lk_bdy ) CALL bdy_init ! Open boundaries initialisation
	442	IF( lk_bdy ) CALL bdy_dta_init ! Open boundaries initialisation of external data arrays
[4292]	443	IF( lk_bdy .AND. lk_tide ) &
[4990]	444	& CALL bdytide_init ! Open boundaries initialisation of tidal harmonic forcing
[2027]	445
[3294]	446	CALL dyn_nept_init ! simplified form of Neptune effect
[15280]	447	!
[4152]	448	IF( ln_crs ) CALL crs_init ! Domain initialization of coarsened grid
	449	!
	450	! Ocean physics
[2082]	451	! ! Vertical physics
	452	CALL zdf_init ! namelist read
	453	CALL zdf_bfr_init ! bottom friction
	454	IF( lk_zdfric ) CALL zdf_ric_init ! Richardson number dependent Kz
[2329]	455	IF( lk_zdftke ) CALL zdf_tke_init ! TKE closure scheme
	456	IF( lk_zdfgls ) CALL zdf_gls_init ! GLS closure scheme
	457	IF( lk_zdfkpp ) CALL zdf_kpp_init ! KPP closure scheme
[2082]	458	IF( lk_zdftmx ) CALL zdf_tmx_init ! tidal vertical mixing
[3764]	459	IF( lk_zdfddm .AND. .NOT. lk_zdfkpp ) &
[2082]	460	& CALL zdf_ddm_init ! double diffusive mixing
	461	! ! Lateral physics
	462	CALL ldf_tra_init ! Lateral ocean tracer physics
	463	CALL ldf_dyn_init ! Lateral ocean momentum physics
[2392]	464	IF( lk_ldfslp ) CALL ldf_slp_init ! slope of lateral mixing
[2082]	465
[2027]	466	! ! Active tracers
	467	CALL tra_qsr_init ! penetrative solar radiation qsr
[2325]	468	CALL tra_bbc_init ! bottom heat flux
[2027]	469	IF( lk_trabbl ) CALL tra_bbl_init ! advective (and/or diffusive) bottom boundary layer scheme
[4245]	470	CALL tra_dmp_init ! internal damping trends- tracers
[2027]	471	CALL tra_adv_init ! horizontal & vertical advection
	472	CALL tra_ldf_init ! lateral mixing
	473	CALL tra_zdf_init ! vertical mixing and after tracer fields
	474
	475	! ! Dynamics
[4245]	476	IF( lk_c1d ) CALL dyn_dmp_init ! internal damping trends- momentum
[2027]	477	CALL dyn_adv_init ! advection (vector or flux form)
[2104]	478	CALL dyn_vor_init ! vorticity term including Coriolis
[2027]	479	CALL dyn_ldf_init ! lateral mixing
[2104]	480	CALL dyn_hpg_init ! horizontal gradient of Hydrostatic pressure
[2027]	481	CALL dyn_zdf_init ! vertical diffusion
	482	CALL dyn_spg_init ! surface pressure gradient
[3764]	483
[2392]	484	! ! Misc. options
[4147]	485	IF( nn_cla == 1 .AND. cp_cfg == 'orca' .AND. jp_cfg == 2 ) CALL cla_init ! Cross Land Advection
[3609]	486	CALL icb_init( rdt, nit000) ! initialise icebergs instance
[5329]	487	CALL sto_par_init ! Stochastic parametrization
	488	IF( ln_sto_eos ) CALL sto_pts_init ! RRandom T/S fluctuations
[15280]	489
[1594]	490	#if defined key_top
[2027]	491	! ! Passive tracers
[2082]	492	CALL trc_init
[1594]	493	#endif
[4990]	494	! ! Diagnostics
[3294]	495	IF( lk_floats ) CALL flo_init ! drifting Floats
[2027]	496	CALL dia_ptr_init ! Poleward TRansports initialization
[3294]	497	IF( lk_diadct ) CALL dia_dct_init ! Sections tranports
[2148]	498	CALL dia_hsb_init ! heat content, salt content and volume budgets
[4990]	499	CALL trd_init ! Mixed-layer/Vorticity/Integral constraints trends
[11442]	500	CALL stopack_init ! STOPACK scheme
[2392]	501	IF( lk_diaobs ) THEN ! Observation & model comparison
[2382]	502	CALL dia_obs_init ! Initialize observational data
	503	CALL dia_obs( nit000 - 1 ) ! Observation operator for restart
[3764]	504	ENDIF
[4990]	505
[2382]	506	! ! Assimilation increments
[2392]	507	IF( lk_asminc ) CALL asm_inc_init ! Initialize assimilation increments
[10301]	508	CALL bias_init ! Pressure correction bias
[2382]	509	IF(lwp) WRITE(numout,*) 'Euler time step switch is ', neuler
[15280]	510
[8280]	511	IF (nstop > 0) THEN
	512	CALL CTL_STOP('STOP','Critical errors in NEMO initialisation')
	513	END IF
	514
[1593]	515	!
[2496]	516	END SUBROUTINE nemo_init
[467]	517
	518
[2496]	519	SUBROUTINE nemo_ctl
[467]	520	!!----------------------------------------------------------------------
[2496]	521	!! * ROUTINE nemo_ctl *
[467]	522	!!
[3764]	523	!! ** Purpose : control print setting
[467]	524	!!
[2442]	525	!! ** Method : - print namctl information and check some consistencies
[467]	526	!!----------------------------------------------------------------------
[2442]	527	!
[2496]	528	IF(lwp) THEN ! control print
[531]	529	WRITE(numout,*)
[2496]	530	WRITE(numout,*) 'nemo_ctl: Control prints & Benchmark'
[531]	531	WRITE(numout,*) '~~~~~~~ '
[1593]	532	WRITE(numout,*) ' Namelist namctl'
[1601]	533	WRITE(numout,*) ' run control (for debugging) ln_ctl = ', ln_ctl
	534	WRITE(numout,*) ' level of print nn_print = ', nn_print
	535	WRITE(numout,*) ' Start i indice for SUM control nn_ictls = ', nn_ictls
	536	WRITE(numout,*) ' End i indice for SUM control nn_ictle = ', nn_ictle
	537	WRITE(numout,*) ' Start j indice for SUM control nn_jctls = ', nn_jctls
	538	WRITE(numout,*) ' End j indice for SUM control nn_jctle = ', nn_jctle
	539	WRITE(numout,*) ' number of proc. following i nn_isplt = ', nn_isplt
	540	WRITE(numout,*) ' number of proc. following j nn_jsplt = ', nn_jsplt
	541	WRITE(numout,*) ' benchmark parameter (0/1) nn_bench = ', nn_bench
[3610]	542	WRITE(numout,*) ' timing activated (0/1) nn_timing = ', nn_timing
[531]	543	ENDIF
[2442]	544	!
[1601]	545	nprint = nn_print ! convert DOCTOR namelist names into OLD names
	546	nictls = nn_ictls
	547	nictle = nn_ictle
	548	njctls = nn_jctls
	549	njctle = nn_jctle
	550	isplt = nn_isplt
	551	jsplt = nn_jsplt
	552	nbench = nn_bench
[4147]	553
	554	IF(lwp) THEN ! control print
	555	WRITE(numout,*)
	556	WRITE(numout,*) 'namcfg : configuration initialization through namelist read'
	557	WRITE(numout,*) '~~~~~~~ '
	558	WRITE(numout,*) ' Namelist namcfg'
	559	WRITE(numout,*) ' configuration name cp_cfg = ', TRIM(cp_cfg)
	560	WRITE(numout,*) ' configuration zoom name cp_cfz = ', TRIM(cp_cfz)
	561	WRITE(numout,*) ' configuration resolution jp_cfg = ', jp_cfg
	562	WRITE(numout,*) ' 1st lateral dimension ( >= jpi ) jpidta = ', jpidta
	563	WRITE(numout,*) ' 2nd " " ( >= jpj ) jpjdta = ', jpjdta
	564	WRITE(numout,*) ' 3nd " " jpkdta = ', jpkdta
	565	WRITE(numout,*) ' 1st dimension of global domain in i jpiglo = ', jpiglo
	566	WRITE(numout,*) ' 2nd - - in j jpjglo = ', jpjglo
	567	WRITE(numout,*) ' left bottom i index of the zoom (in data domain) jpizoom = ', jpizoom
	568	WRITE(numout,*) ' left bottom j index of the zoom (in data domain) jpizoom = ', jpjzoom
[15280]	569	WRITE(numout,*) ' lateral cond. type (between 0 and 6) jperio = ', jperio
[5118]	570	WRITE(numout,*) ' use file attribute if exists as i/p j-start ln_use_jattr = ', ln_use_jattr
[4147]	571	ENDIF
[2442]	572	! ! Parameter control
[1593]	573	!
	574	IF( ln_ctl ) THEN ! sub-domain area indices for the control prints
[3294]	575	IF( lk_mpp .AND. jpnij > 1 ) THEN
[2496]	576	isplt = jpni ; jsplt = jpnj ; ijsplt = jpni*jpnj ! the domain is forced to the real split domain
[531]	577	ELSE
	578	IF( isplt == 1 .AND. jsplt == 1 ) THEN
[1593]	579	CALL ctl_warn( ' - isplt & jsplt are equal to 1', &
	580	& ' - the print control will be done over the whole domain' )
[531]	581	ENDIF
[1593]	582	ijsplt = isplt * jsplt ! total number of processors ijsplt
[531]	583	ENDIF
	584	IF(lwp) WRITE(numout,*)' - The total number of processors over which the'
	585	IF(lwp) WRITE(numout,*)' print control will be done is ijsplt : ', ijsplt
[1593]	586	!
	587	! ! indices used for the SUM control
	588	IF( nictls+nictle+njctls+njctle == 0 ) THEN ! print control done over the default area
[3764]	589	lsp_area = .FALSE.
[1593]	590	ELSE ! print control done over a specific area
[531]	591	lsp_area = .TRUE.
	592	IF( nictls < 1 .OR. nictls > jpiglo ) THEN
	593	CALL ctl_warn( ' - nictls must be 1<=nictls>=jpiglo, it is forced to 1' )
	594	nictls = 1
	595	ENDIF
	596	IF( nictle < 1 .OR. nictle > jpiglo ) THEN
	597	CALL ctl_warn( ' - nictle must be 1<=nictle>=jpiglo, it is forced to jpiglo' )
	598	nictle = jpiglo
	599	ENDIF
	600	IF( njctls < 1 .OR. njctls > jpjglo ) THEN
	601	CALL ctl_warn( ' - njctls must be 1<=njctls>=jpjglo, it is forced to 1' )
	602	njctls = 1
	603	ENDIF
	604	IF( njctle < 1 .OR. njctle > jpjglo ) THEN
	605	CALL ctl_warn( ' - njctle must be 1<=njctle>=jpjglo, it is forced to jpjglo' )
	606	njctle = jpjglo
	607	ENDIF
[1593]	608	ENDIF
	609	ENDIF
[2442]	610	!
[3764]	611	IF( nbench == 1 ) THEN ! Benchmark
[531]	612	SELECT CASE ( cp_cfg )
[1593]	613	CASE ( 'gyre' ) ; CALL ctl_warn( ' The Benchmark is activated ' )
	614	CASE DEFAULT ; CALL ctl_stop( ' The Benchmark is based on the GYRE configuration:', &
[4147]	615	& ' cp_cfg = "gyre" in namelist &namcfg or set nbench = 0' )
[531]	616	END SELECT
	617	ENDIF
[1593]	618	!
[3764]	619	IF( 1_wp /= SIGN(1._wp,-0._wp) ) CALL ctl_stop( 'nemo_ctl: The intrinsec SIGN function follows ', &
	620	& 'f2003 standard. ' , &
	621	& 'Compile with key_nosignedzero enabled' )
	622	!
[2496]	623	END SUBROUTINE nemo_ctl
[467]	624
	625
[2496]	626	SUBROUTINE nemo_closefile
[467]	627	!!----------------------------------------------------------------------
[2496]	628	!! * ROUTINE nemo_closefile *
[467]	629	!!
	630	!! ** Purpose : Close the files
	631	!!----------------------------------------------------------------------
[1593]	632	!
	633	IF( lk_mpp ) CALL mppsync
	634	!
[1685]	635	CALL iom_close ! close all input/output files managed by iom_*
[1593]	636	!
[4147]	637	IF( numstp /= -1 ) CLOSE( numstp ) ! time-step file
	638	IF( numsol /= -1 ) CLOSE( numsol ) ! solver file
	639	IF( numnam_ref /= -1 ) CLOSE( numnam_ref ) ! oce reference namelist
	640	IF( numnam_cfg /= -1 ) CLOSE( numnam_cfg ) ! oce configuration namelist
[4624]	641	IF( lwm.AND.numond /= -1 ) CLOSE( numond ) ! oce output namelist
[4147]	642	IF( numnam_ice_ref /= -1 ) CLOSE( numnam_ice_ref ) ! ice reference namelist
	643	IF( numnam_ice_cfg /= -1 ) CLOSE( numnam_ice_cfg ) ! ice configuration namelist
[4624]	644	IF( lwm.AND.numoni /= -1 ) CLOSE( numoni ) ! ice output namelist
[4147]	645	IF( numevo_ice /= -1 ) CLOSE( numevo_ice ) ! ice variables (temp. evolution)
	646	IF( numout /= 6 ) CLOSE( numout ) ! standard model output file
	647	IF( numdct_vol /= -1 ) CLOSE( numdct_vol ) ! volume transports
	648	IF( numdct_heat /= -1 ) CLOSE( numdct_heat ) ! heat transports
	649	IF( numdct_salt /= -1 ) CLOSE( numdct_salt ) ! salt transports
[8280]	650	#if defined key_top
[15280]	651	IF( numstr /= -1 ) CLOSE( numstr ) ! tracer statistics
[8280]	652	#endif
[1593]	653	!
[2442]	654	numout = 6 ! redefine numout in case it is used after this point...
	655	!
[2496]	656	END SUBROUTINE nemo_closefile
[467]	657
[2715]	658
	659	SUBROUTINE nemo_alloc
	660	!!----------------------------------------------------------------------
	661	!! * ROUTINE nemo_alloc *
	662	!!
	663	!! ** Purpose : Allocate all the dynamic arrays of the OPA modules
	664	!!
	665	!! ** Method :
	666	!!----------------------------------------------------------------------
	667	USE diawri , ONLY: dia_wri_alloc
[8400]	668	USE insitu_tem, ONLY: insitu_tem_alloc
[2715]	669	USE dom_oce , ONLY: dom_oce_alloc
	670	USE ldfdyn_oce, ONLY: ldfdyn_oce_alloc
	671	USE ldftra_oce, ONLY: ldftra_oce_alloc
	672	USE trc_oce , ONLY: trc_oce_alloc
[15280]	673	#if defined key_diadct
	674	USE diadct , ONLY: diadct_alloc
	675	#endif
[4354]	676	#if defined key_bdy
	677	USE bdy_oce , ONLY: bdy_oce_alloc
	678	#endif
[2715]	679	!
	680	INTEGER :: ierr
	681	!!----------------------------------------------------------------------
	682	!
[3764]	683	ierr = oce_alloc () ! ocean
[2715]	684	ierr = ierr + dia_wri_alloc ()
[8400]	685	ierr = ierr + insitu_tem_alloc()
[2715]	686	ierr = ierr + dom_oce_alloc () ! ocean domain
	687	ierr = ierr + ldfdyn_oce_alloc() ! ocean lateral physics : dynamics
	688	ierr = ierr + ldftra_oce_alloc() ! ocean lateral physics : tracers
	689	ierr = ierr + zdf_oce_alloc () ! ocean vertical physics
	690	!
	691	ierr = ierr + trc_oce_alloc () ! shared TRC / TRA arrays
	692	!
[15280]	693	#if defined key_diadct
	694	ierr = ierr + diadct_alloc () !
	695	#endif
[4354]	696	#if defined key_bdy
	697	ierr = ierr + bdy_oce_alloc () ! bdy masks (incl. initialization)
	698	#endif
[3680]	699	!
[2715]	700	IF( lk_mpp ) CALL mpp_sum( ierr )
	701	IF( ierr /= 0 ) CALL ctl_stop( 'STOP', 'nemo_alloc : unable to allocate standard ocean arrays' )
	702	!
	703	END SUBROUTINE nemo_alloc
	704
	705
	706	SUBROUTINE nemo_partition( num_pes )
	707	!!----------------------------------------------------------------------
	708	!! * ROUTINE nemo_partition *
	709	!!
[3764]	710	!! ** Purpose :
[2715]	711	!!
	712	!! ** Method :
	713	!!----------------------------------------------------------------------
[4990]	714	INTEGER, INTENT(in) :: num_pes ! The number of MPI processes we have
[2715]	715	!
	716	INTEGER, PARAMETER :: nfactmax = 20
	717	INTEGER :: nfact ! The no. of factors returned
	718	INTEGER :: ierr ! Error flag
	719	INTEGER :: ji
	720	INTEGER :: idiff, mindiff, imin ! For choosing pair of factors that are closest in value
	721	INTEGER, DIMENSION(nfactmax) :: ifact ! Array of factors
	722	!!----------------------------------------------------------------------
[4990]	723	!
[2715]	724	ierr = 0
[4990]	725	!
[2715]	726	CALL factorise( ifact, nfactmax, nfact, num_pes, ierr )
[4990]	727	!
[2715]	728	IF( nfact <= 1 ) THEN
	729	WRITE (numout, *) 'WARNING: factorisation of number of PEs failed'
	730	WRITE (numout, *) ' : using grid of ',num_pes,' x 1'
	731	jpnj = 1
	732	jpni = num_pes
	733	ELSE
	734	! Search through factors for the pair that are closest in value
	735	mindiff = 1000000
	736	imin = 1
	737	DO ji = 1, nfact-1, 2
	738	idiff = ABS( ifact(ji) - ifact(ji+1) )
	739	IF( idiff < mindiff ) THEN
	740	mindiff = idiff
	741	imin = ji
	742	ENDIF
	743	END DO
	744	jpnj = ifact(imin)
	745	jpni = ifact(imin + 1)
	746	ENDIF
	747	!
	748	jpnij = jpni*jpnj
	749	!
	750	END SUBROUTINE nemo_partition
	751
	752
	753	SUBROUTINE factorise( kfax, kmaxfax, knfax, kn, kerr )
	754	!!----------------------------------------------------------------------
	755	!! * ROUTINE factorise *
	756	!!
	757	!! ** Purpose : return the prime factors of n.
[3764]	758	!! knfax factors are returned in array kfax which is of
[2715]	759	!! maximum dimension kmaxfax.
	760	!! ** Method :
	761	!!----------------------------------------------------------------------
	762	INTEGER , INTENT(in ) :: kn, kmaxfax
	763	INTEGER , INTENT( out) :: kerr, knfax
	764	INTEGER, DIMENSION(kmaxfax), INTENT( out) :: kfax
	765	!
	766	INTEGER :: ifac, jl, inu
	767	INTEGER, PARAMETER :: ntest = 14
[6487]	768	INTEGER, DIMENSION(ntest) :: ilfax
[4990]	769	!
[6487]	770	! ilfax contains the set of allowed factors.
	771	ilfax(:) = (/(2**jl,jl=ntest,1,-1)/)
[2715]	772	!!----------------------------------------------------------------------
[6487]	773	! ilfax contains the set of allowed factors.
	774	ilfax(:) = (/(2**jl,jl=ntest,1,-1)/)
[2715]	775
	776	! Clear the error flag and initialise output vars
	777	kerr = 0
	778	kfax = 1
	779	knfax = 0
	780
	781	! Find the factors of n.
	782	IF( kn == 1 ) GOTO 20
	783
	784	! nu holds the unfactorised part of the number.
	785	! knfax holds the number of factors found.
	786	! l points to the allowed factor list.
	787	! ifac holds the current factor.
	788
	789	inu = kn
	790	knfax = 0
	791
	792	DO jl = ntest, 1, -1
	793	!
	794	ifac = ilfax(jl)
	795	IF( ifac > inu ) CYCLE
	796
	797	! Test whether the factor will divide.
	798
	799	IF( MOD(inu,ifac) == 0 ) THEN
	800	!
	801	knfax = knfax + 1 ! Add the factor to the list
	802	IF( knfax > kmaxfax ) THEN
	803	kerr = 6
	804	write (,) 'FACTOR: insufficient space in factor array ', knfax
	805	return
	806	ENDIF
	807	kfax(knfax) = ifac
	808	! Store the other factor that goes with this one
	809	knfax = knfax + 1
	810	kfax(knfax) = inu / ifac
	811	!WRITE (,) 'ARPDBG, factors ',knfax-1,' & ',knfax,' are ', kfax(knfax-1),' and ',kfax(knfax)
	812	ENDIF
	813	!
	814	END DO
	815
	816	20 CONTINUE ! Label 20 is the exit point from the factor search loop.
	817	!
	818	END SUBROUTINE factorise
	819
[3294]	820	#if defined key_mpp_mpi
[4990]	821
[3294]	822	SUBROUTINE nemo_northcomms
	823	!!======================================================================
	824	!! * ROUTINE nemo_northcomms *
[15280]	825	!! nemo_northcomms : Setup for north fold exchanges with explicit
[4230]	826	!! point-to-point messaging
[3294]	827	!!=====================================================================
	828	!!----------------------------------------------------------------------
[3764]	829	!!
[3294]	830	!! ** Purpose : Initialization of the northern neighbours lists.
	831	!!----------------------------------------------------------------------
[3764]	832	!! 1.0 ! 2011-10 (A. C. Coward, NOCS & J. Donners, PRACE)
[15280]	833	!! 2.0 ! 2013-06 Setup avoiding MPI communication (I. Epicoco, S. Mocavero, CMCC)
[3294]	834	!!----------------------------------------------------------------------
	835
[4230]	836	INTEGER :: sxM, dxM, sxT, dxT, jn
	837	INTEGER :: njmppmax
[3294]	838
[4230]	839	njmppmax = MAXVAL( njmppt )
[15280]	840
[4230]	841	!initializes the north-fold communication variables
	842	isendto(:) = 0
[3294]	843	nsndto = 0
	844
[4230]	845	!if I am a process in the north
	846	IF ( njmpp == njmppmax ) THEN
	847	!sxM is the first point (in the global domain) needed to compute the
	848	!north-fold for the current process
	849	sxM = jpiglo - nimppt(narea) - nlcit(narea) + 1
	850	!dxM is the last point (in the global domain) needed to compute the
	851	!north-fold for the current process
	852	dxM = jpiglo - nimppt(narea) + 2
[3294]	853
[4230]	854	!loop over the other north-fold processes to find the processes
	855	!managing the points belonging to the sxT-dxT range
[15280]	856
[4671]	857	DO jn = 1, jpni
[4230]	858	!sxT is the first point (in the global domain) of the jn
	859	!process
[4671]	860	sxT = nfiimpp(jn, jpnj)
[4230]	861	!dxT is the last point (in the global domain) of the jn
	862	!process
[4671]	863	dxT = nfiimpp(jn, jpnj) + nfilcit(jn, jpnj) - 1
[4230]	864	IF ((sxM .gt. sxT) .AND. (sxM .lt. dxT)) THEN
	865	nsndto = nsndto + 1
[4671]	866	isendto(nsndto) = jn
[4645]	867	ELSEIF ((sxM .le. sxT) .AND. (dxM .ge. dxT)) THEN
[4230]	868	nsndto = nsndto + 1
[4671]	869	isendto(nsndto) = jn
[4230]	870	ELSEIF ((dxM .lt. dxT) .AND. (sxT .lt. dxM)) THEN
	871	nsndto = nsndto + 1
[4671]	872	isendto(nsndto) = jn
[4230]	873	END IF
	874	END DO
[4671]	875	nfsloop = 1
	876	nfeloop = nlci
	877	DO jn = 2,jpni-1
	878	IF(nfipproc(jn,jpnj) .eq. (narea - 1)) THEN
	879	IF (nfipproc(jn - 1 ,jpnj) .eq. -1) THEN
	880	nfsloop = nldi
	881	ENDIF
	882	IF (nfipproc(jn + 1,jpnj) .eq. -1) THEN
	883	nfeloop = nlei
	884	ENDIF
	885	ENDIF
	886	END DO
	887
[3294]	888	ENDIF
[4230]	889	l_north_nogather = .TRUE.
[3294]	890	END SUBROUTINE nemo_northcomms
	891	#else
	892	SUBROUTINE nemo_northcomms ! Dummy routine
	893	WRITE(,) 'nemo_northcomms: You should not have seen this print! error?'
	894	END SUBROUTINE nemo_northcomms
	895	#endif
[4990]	896
[3]	897	!!======================================================================
[2496]	898	END MODULE nemogcm

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source: branches/UKMO/dev_r5518_GO6_package_FOAMv14/NEMOGCM/NEMO/OPA_SRC/nemogcm.F90

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