New URL for NEMO forge! http://forge.nemo-ocean.eu

Since March 2022 along with NEMO 4.2 release, the code development moved to a self-hosted GitLab.
This present forge is now archived and remained online for history.

lib_mpp.F90 in branches/2015/nemo_v3_6_STABLE/NEMOGCM/NEMO/OPA_SRC/LBC – NEMO

Context Navigation

source: branches/2015/nemo_v3_6_STABLE/NEMOGCM/NEMO/OPA_SRC/LBC/lib_mpp.F90 @ 7531

Last change on this file since 7531 was 7531, checked in by timgraham, 7 years ago
Trivial fix for #1820
Property svn:keywords set to `Id`
File size: 173.0 KB

Rev	Line
[3]	1	MODULE lib_mpp
[13]	2	!!======================================================================
	3	!! * MODULE lib_mpp *
[1344]	4	!! Ocean numerics: massively parallel processing library
[13]	5	!!=====================================================================
[1344]	6	!! History : OPA ! 1994 (M. Guyon, J. Escobar, M. Imbard) Original code
	7	!! 7.0 ! 1997 (A.M. Treguier) SHMEM additions
	8	!! 8.0 ! 1998 (M. Imbard, J. Escobar, L. Colombet ) SHMEM and MPI
	9	!! ! 1998 (J.M. Molines) Open boundary conditions
	10	!! NEMO 1.0 ! 2003 (J.-M. Molines, G. Madec) F90, free form
	11	!! ! 2003 (J.M. Molines) add mpp_ini_north(_3d,_2d)
	12	!! - ! 2004 (R. Bourdalle Badie) isend option in mpi
	13	!! ! 2004 (J.M. Molines) minloc, maxloc
	14	!! - ! 2005 (G. Madec, S. Masson) npolj=5,6 F-point & ice cases
	15	!! - ! 2005 (R. Redler) Replacement of MPI_COMM_WORLD except for MPI_Abort
	16	!! - ! 2005 (R. Benshila, G. Madec) add extra halo case
	17	!! - ! 2008 (R. Benshila) add mpp_ini_ice
	18	!! 3.2 ! 2009 (R. Benshila) SHMEM suppression, north fold in lbc_nfd
[3764]	19	!! 3.2 ! 2009 (O. Marti) add mpp_ini_znl
[2715]	20	!! 4.0 ! 2011 (G. Madec) move ctl_ routines from in_out_manager
[3680]	21	!! 3.5 ! 2012 (S.Mocavero, I. Epicoco) Add 'mpp_lnk_bdy_3d', 'mpp_lnk_obc_3d',
	22	!! 'mpp_lnk_bdy_2d' and 'mpp_lnk_obc_2d' routines and update
	23	!! the mppobc routine to optimize the BDY and OBC communications
[4230]	24	!! 3.5 ! 2013 ( C. Ethe, G. Madec ) message passing arrays as local variables
	25	!! 3.5 ! 2013 (S.Mocavero, I.Epicoco - CMCC) north fold optimizations
[6476]	26	!! 3.6 ! 2015 (O. Tintó and M. Castrillo - BSC) Added 'mpp_lnk_2d_multiple', 'mpp_lbc_north_2d_multiple', 'mpp_max_multiple'
[13]	27	!!----------------------------------------------------------------------
[2715]	28
	29	!!----------------------------------------------------------------------
	30	!! ctl_stop : update momentum and tracer Kz from a tke scheme
	31	!! ctl_warn : initialization, namelist read, and parameters control
	32	!! ctl_opn : Open file and check if required file is available.
[4147]	33	!! ctl_nam : Prints informations when an error occurs while reading a namelist
	34	!! get_unit : give the index of an unused logical unit
[2715]	35	!!----------------------------------------------------------------------
[3764]	36	#if defined key_mpp_mpi
[13]	37	!!----------------------------------------------------------------------
[1344]	38	!! 'key_mpp_mpi' MPI massively parallel processing library
	39	!!----------------------------------------------------------------------
[2715]	40	!! lib_mpp_alloc : allocate mpp arrays
	41	!! mynode : indentify the processor unit
	42	!! mpp_lnk : interface (defined in lbclnk) for message passing of 2d or 3d arrays (mpp_lnk_2d, mpp_lnk_3d)
[473]	43	!! mpp_lnk_3d_gather : Message passing manadgement for two 3D arrays
[2715]	44	!! mpp_lnk_e : interface (defined in lbclnk) for message passing of 2d array with extra halo (mpp_lnk_2d_e)
[4990]	45	!! mpp_lnk_icb : interface for message passing of 2d arrays with extra halo for icebergs (mpp_lnk_2d_icb)
[2715]	46	!! mpprecv :
	47	!! mppsend : SUBROUTINE mpp_ini_znl
	48	!! mppscatter :
	49	!! mppgather :
	50	!! mpp_min : generic interface for mppmin_int , mppmin_a_int , mppmin_real, mppmin_a_real
	51	!! mpp_max : generic interface for mppmax_int , mppmax_a_int , mppmax_real, mppmax_a_real
	52	!! mpp_sum : generic interface for mppsum_int , mppsum_a_int , mppsum_real, mppsum_a_real
	53	!! mpp_minloc :
	54	!! mpp_maxloc :
	55	!! mppsync :
	56	!! mppstop :
[1344]	57	!! mpp_ini_north : initialisation of north fold
	58	!! mpp_lbc_north : north fold processors gathering
	59	!! mpp_lbc_north_e : variant of mpp_lbc_north for extra outer halo
[4990]	60	!! mpp_lbc_north_icb : variant of mpp_lbc_north for extra outer halo with icebergs
[13]	61	!!----------------------------------------------------------------------
[3764]	62	USE dom_oce ! ocean space and time domain
[2715]	63	USE lbcnfd ! north fold treatment
	64	USE in_out_manager ! I/O manager
[6476]	65	USE wrk_nemo ! work arrays
[3]	66
[13]	67	IMPLICIT NONE
[415]	68	PRIVATE
[4147]	69
	70	PUBLIC ctl_stop, ctl_warn, get_unit, ctl_opn, ctl_nam
[1344]	71	PUBLIC mynode, mppstop, mppsync, mpp_comm_free
	72	PUBLIC mpp_ini_north, mpp_lbc_north, mpp_lbc_north_e
	73	PUBLIC mpp_min, mpp_max, mpp_sum, mpp_minloc, mpp_maxloc
[6476]	74	PUBLIC mpp_max_multiple
[1344]	75	PUBLIC mpp_lnk_3d, mpp_lnk_3d_gather, mpp_lnk_2d, mpp_lnk_2d_e
[6476]	76	PUBLIC mpp_lnk_2d_9 , mpp_lnk_2d_multiple
[3294]	77	PUBLIC mppscatter, mppgather
[4328]	78	PUBLIC mpp_ini_ice, mpp_ini_znl
[2715]	79	PUBLIC mppsize
[3764]	80	PUBLIC mppsend, mpprecv ! needed by TAM and ICB routines
[3680]	81	PUBLIC mpp_lnk_bdy_2d, mpp_lnk_bdy_3d
[4990]	82	PUBLIC mpp_lbc_north_icb, mpp_lnk_2d_icb
[6476]	83	PUBLIC mpprank
[415]	84
[5429]	85	TYPE arrayptr
	86	REAL , DIMENSION (:,:), POINTER :: pt2d
	87	END TYPE arrayptr
[6476]	88	PUBLIC arrayptr
[5429]	89
[13]	90	!! * Interfaces
	91	!! define generic interface for these routine as they are called sometimes
[1344]	92	!! with scalar arguments instead of array arguments, which causes problems
	93	!! for the compilation on AIX system as well as NEC and SGI. Ok on COMPACQ
[13]	94	INTERFACE mpp_min
	95	MODULE PROCEDURE mppmin_a_int, mppmin_int, mppmin_a_real, mppmin_real
	96	END INTERFACE
	97	INTERFACE mpp_max
[681]	98	MODULE PROCEDURE mppmax_a_int, mppmax_int, mppmax_a_real, mppmax_real
[13]	99	END INTERFACE
	100	INTERFACE mpp_sum
[1976]	101	MODULE PROCEDURE mppsum_a_int, mppsum_int, mppsum_a_real, mppsum_real, &
	102	mppsum_realdd, mppsum_a_realdd
[13]	103	END INTERFACE
	104	INTERFACE mpp_lbc_north
[3764]	105	MODULE PROCEDURE mpp_lbc_north_3d, mpp_lbc_north_2d
[13]	106	END INTERFACE
[1344]	107	INTERFACE mpp_minloc
	108	MODULE PROCEDURE mpp_minloc2d ,mpp_minloc3d
	109	END INTERFACE
	110	INTERFACE mpp_maxloc
	111	MODULE PROCEDURE mpp_maxloc2d ,mpp_maxloc3d
	112	END INTERFACE
[3764]	113
[6476]	114	INTERFACE mpp_max_multiple
	115	MODULE PROCEDURE mppmax_real_multiple
	116	END INTERFACE
	117
[51]	118	!! ========================= !!
	119	!! MPI variable definition !!
	120	!! ========================= !!
[1629]	121	!$AGRIF_DO_NOT_TREAT
[2004]	122	INCLUDE 'mpif.h'
[1629]	123	!$AGRIF_END_DO_NOT_TREAT
[3764]	124
[1344]	125	LOGICAL, PUBLIC, PARAMETER :: lk_mpp = .TRUE. !: mpp flag
[3]	126
[1344]	127	INTEGER, PARAMETER :: nprocmax = 2**10 ! maximun dimension (required to be a power of 2)
[3764]	128
[1344]	129	INTEGER :: mppsize ! number of process
	130	INTEGER :: mpprank ! process number [ 0 - size-1 ]
[2363]	131	!$AGRIF_DO_NOT_TREAT
[2249]	132	INTEGER, PUBLIC :: mpi_comm_opa ! opa local communicator
[2363]	133	!$AGRIF_END_DO_NOT_TREAT
[3]	134
[2480]	135	INTEGER :: MPI_SUMDD
[1976]	136
[869]	137	! variables used in case of sea-ice
[3625]	138	INTEGER, PUBLIC :: ncomm_ice !: communicator made by the processors with sea-ice (public so that it can be freed in limthd)
	139	INTEGER :: ngrp_iworld ! group ID for the world processors (for rheology)
[1345]	140	INTEGER :: ngrp_ice ! group ID for the ice processors (for rheology)
	141	INTEGER :: ndim_rank_ice ! number of 'ice' processors
	142	INTEGER :: n_ice_root ! number (in the comm_ice) of proc 0 in the ice comm
[2715]	143	INTEGER, DIMENSION(:), ALLOCATABLE, SAVE :: nrank_ice ! dimension ndim_rank_ice
[1345]	144
	145	! variables used for zonal integration
	146	INTEGER, PUBLIC :: ncomm_znl !: communicator made by the processors on the same zonal average
	147	LOGICAL, PUBLIC :: l_znl_root ! True on the 'left'most processor on the same row
	148	INTEGER :: ngrp_znl ! group ID for the znl processors
	149	INTEGER :: ndim_rank_znl ! number of processors on the same zonal average
[2715]	150	INTEGER, DIMENSION(:), ALLOCATABLE, SAVE :: nrank_znl ! dimension ndim_rank_znl, number of the procs into the same znl domain
[3]	151
[3764]	152	! North fold condition in mpp_mpi with jpni > 1 (PUBLIC for TAM)
	153	INTEGER, PUBLIC :: ngrp_world ! group ID for the world processors
	154	INTEGER, PUBLIC :: ngrp_opa ! group ID for the opa processors
	155	INTEGER, PUBLIC :: ngrp_north ! group ID for the northern processors (to be fold)
	156	INTEGER, PUBLIC :: ncomm_north ! communicator made by the processors belonging to ngrp_north
	157	INTEGER, PUBLIC :: ndim_rank_north ! number of 'sea' processor in the northern line (can be /= jpni !)
	158	INTEGER, PUBLIC :: njmppmax ! value of njmpp for the processors of the northern line
	159	INTEGER, PUBLIC :: north_root ! number (in the comm_opa) of proc 0 in the northern comm
	160	INTEGER, DIMENSION(:), ALLOCATABLE, SAVE, PUBLIC :: nrank_north ! dimension ndim_rank_north
	161
[1344]	162	! Type of send : standard, buffered, immediate
[4147]	163	CHARACTER(len=1), PUBLIC :: cn_mpi_send ! type od mpi send/recieve (S=standard, B=bsend, I=isend)
[3764]	164	LOGICAL, PUBLIC :: l_isend = .FALSE. ! isend use indicator (T if cn_mpi_send='I')
[4147]	165	INTEGER, PUBLIC :: nn_buffer ! size of the buffer in case of mpi_bsend
[3764]	166
[2715]	167	REAL(wp), DIMENSION(:), ALLOCATABLE, SAVE :: tampon ! buffer in case of bsend
[3]	168
[4230]	169	LOGICAL, PUBLIC :: ln_nnogather ! namelist control of northfold comms
[3294]	170	LOGICAL, PUBLIC :: l_north_nogather = .FALSE. ! internal control of northfold comms
	171	INTEGER, PUBLIC :: ityp
[51]	172	!!----------------------------------------------------------------------
[2287]	173	!! NEMO/OPA 3.3 , NEMO Consortium (2010)
[888]	174	!! $Id$
[2715]	175	!! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt)
[1344]	176	!!----------------------------------------------------------------------
[3]	177	CONTAINS
	178
[2715]	179
[5407]	180	FUNCTION mynode( ldtxt, ldname, kumnam_ref , kumnam_cfg , kumond , kstop, localComm )
[2715]	181	!!----------------------------------------------------------------------
[51]	182	!! * routine mynode *
[3764]	183	!!
[51]	184	!! ** Purpose : Find processor unit
	185	!!----------------------------------------------------------------------
[3764]	186	CHARACTER(len=*),DIMENSION(:), INTENT( out) :: ldtxt
[5407]	187	CHARACTER(len=*) , INTENT(in ) :: ldname
[4147]	188	INTEGER , INTENT(in ) :: kumnam_ref ! logical unit for reference namelist
	189	INTEGER , INTENT(in ) :: kumnam_cfg ! logical unit for configuration namelist
[4624]	190	INTEGER , INTENT(inout) :: kumond ! logical unit for namelist output
[4147]	191	INTEGER , INTENT(inout) :: kstop ! stop indicator
[1579]	192	INTEGER, OPTIONAL , INTENT(in ) :: localComm
[2715]	193	!
[4147]	194	INTEGER :: mynode, ierr, code, ji, ii, ios
[532]	195	LOGICAL :: mpi_was_called
[2715]	196	!
[3294]	197	NAMELIST/nammpp/ cn_mpi_send, nn_buffer, jpni, jpnj, jpnij, ln_nnogather
[51]	198	!!----------------------------------------------------------------------
[1344]	199	!
[2481]	200	ii = 1
	201	WRITE(ldtxt(ii),*) ; ii = ii + 1
	202	WRITE(ldtxt(ii),*) 'mynode : mpi initialisation' ; ii = ii + 1
	203	WRITE(ldtxt(ii),*) '~~~~~~ ' ; ii = ii + 1
[1344]	204	!
[4147]	205
	206	REWIND( kumnam_ref ) ! Namelist nammpp in reference namelist: mpi variables
	207	READ ( kumnam_ref, nammpp, IOSTAT = ios, ERR = 901)
	208	901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nammpp in reference namelist', lwp )
	209
	210	REWIND( kumnam_cfg ) ! Namelist nammpp in configuration namelist: mpi variables
	211	READ ( kumnam_cfg, nammpp, IOSTAT = ios, ERR = 902 )
	212	902 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nammpp in configuration namelist', lwp )
	213
[1344]	214	! ! control print
[2481]	215	WRITE(ldtxt(ii),*) ' Namelist nammpp' ; ii = ii + 1
	216	WRITE(ldtxt(ii),*) ' mpi send type cn_mpi_send = ', cn_mpi_send ; ii = ii + 1
	217	WRITE(ldtxt(ii),*) ' size in bytes of exported buffer nn_buffer = ', nn_buffer ; ii = ii + 1
[300]	218
[2731]	219	#if defined key_agrif
	220	IF( .NOT. Agrif_Root() ) THEN
[3764]	221	jpni = Agrif_Parent(jpni )
[2731]	222	jpnj = Agrif_Parent(jpnj )
	223	jpnij = Agrif_Parent(jpnij)
	224	ENDIF
	225	#endif
	226
[2715]	227	IF(jpnij < 1)THEN
	228	! If jpnij is not specified in namelist then we calculate it - this
	229	! means there will be no land cutting out.
	230	jpnij = jpni * jpnj
	231	END IF
	232
	233	IF( (jpni < 1) .OR. (jpnj < 1) )THEN
	234	WRITE(ldtxt(ii),*) ' jpni, jpnj and jpnij will be calculated automatically'; ii = ii + 1
	235	ELSE
	236	WRITE(ldtxt(ii),*) ' processor grid extent in i jpni = ',jpni; ii = ii + 1
	237	WRITE(ldtxt(ii),*) ' processor grid extent in j jpnj = ',jpnj; ii = ii + 1
	238	WRITE(ldtxt(ii),*) ' number of local domains jpnij = ',jpnij; ii = ii +1
	239	END IF
	240
[3294]	241	WRITE(ldtxt(ii),*) ' avoid use of mpi_allgather at the north fold ln_nnogather = ', ln_nnogather ; ii = ii + 1
	242
[2480]	243	CALL mpi_initialized ( mpi_was_called, code )
	244	IF( code /= MPI_SUCCESS ) THEN
[3764]	245	DO ji = 1, SIZE(ldtxt)
[2481]	246	IF( TRIM(ldtxt(ji)) /= '' ) WRITE(,) ldtxt(ji) ! control print of mynode
[3764]	247	END DO
[2480]	248	WRITE(*, cform_err)
	249	WRITE(, ) 'lib_mpp: Error in routine mpi_initialized'
	250	CALL mpi_abort( mpi_comm_world, code, ierr )
	251	ENDIF
[415]	252
[2480]	253	IF( mpi_was_called ) THEN
	254	!
	255	SELECT CASE ( cn_mpi_send )
	256	CASE ( 'S' ) ! Standard mpi send (blocking)
[2481]	257	WRITE(ldtxt(ii),*) ' Standard blocking mpi send (send)' ; ii = ii + 1
[2480]	258	CASE ( 'B' ) ! Buffer mpi send (blocking)
[2481]	259	WRITE(ldtxt(ii),*) ' Buffer blocking mpi send (bsend)' ; ii = ii + 1
[3764]	260	IF( Agrif_Root() ) CALL mpi_init_opa( ldtxt, ii, ierr )
[2480]	261	CASE ( 'I' ) ! Immediate mpi send (non-blocking send)
[2481]	262	WRITE(ldtxt(ii),*) ' Immediate non-blocking send (isend)' ; ii = ii + 1
[2480]	263	l_isend = .TRUE.
	264	CASE DEFAULT
[2481]	265	WRITE(ldtxt(ii),cform_err) ; ii = ii + 1
	266	WRITE(ldtxt(ii),*) ' bad value for cn_mpi_send = ', cn_mpi_send ; ii = ii + 1
[2715]	267	kstop = kstop + 1
[2480]	268	END SELECT
	269	ELSE IF ( PRESENT(localComm) .and. .not. mpi_was_called ) THEN
[2481]	270	WRITE(ldtxt(ii),*) ' lib_mpp: You cannot provide a local communicator ' ; ii = ii + 1
	271	WRITE(ldtxt(ii),*) ' without calling MPI_Init before ! ' ; ii = ii + 1
[2715]	272	kstop = kstop + 1
[532]	273	ELSE
[1601]	274	SELECT CASE ( cn_mpi_send )
[524]	275	CASE ( 'S' ) ! Standard mpi send (blocking)
[2481]	276	WRITE(ldtxt(ii),*) ' Standard blocking mpi send (send)' ; ii = ii + 1
[2480]	277	CALL mpi_init( ierr )
[524]	278	CASE ( 'B' ) ! Buffer mpi send (blocking)
[2481]	279	WRITE(ldtxt(ii),*) ' Buffer blocking mpi send (bsend)' ; ii = ii + 1
	280	IF( Agrif_Root() ) CALL mpi_init_opa( ldtxt, ii, ierr )
[524]	281	CASE ( 'I' ) ! Immediate mpi send (non-blocking send)
[2481]	282	WRITE(ldtxt(ii),*) ' Immediate non-blocking send (isend)' ; ii = ii + 1
[524]	283	l_isend = .TRUE.
[2480]	284	CALL mpi_init( ierr )
[524]	285	CASE DEFAULT
[2481]	286	WRITE(ldtxt(ii),cform_err) ; ii = ii + 1
	287	WRITE(ldtxt(ii),*) ' bad value for cn_mpi_send = ', cn_mpi_send ; ii = ii + 1
[2715]	288	kstop = kstop + 1
[524]	289	END SELECT
[2480]	290	!
[415]	291	ENDIF
[570]	292
[3764]	293	IF( PRESENT(localComm) ) THEN
[2480]	294	IF( Agrif_Root() ) THEN
	295	mpi_comm_opa = localComm
	296	ENDIF
	297	ELSE
	298	CALL mpi_comm_dup( mpi_comm_world, mpi_comm_opa, code)
	299	IF( code /= MPI_SUCCESS ) THEN
[3764]	300	DO ji = 1, SIZE(ldtxt)
[2481]	301	IF( TRIM(ldtxt(ji)) /= '' ) WRITE(,) ldtxt(ji) ! control print of mynode
	302	END DO
[2480]	303	WRITE(*, cform_err)
	304	WRITE(, ) ' lib_mpp: Error in routine mpi_comm_dup'
	305	CALL mpi_abort( mpi_comm_world, code, ierr )
	306	ENDIF
[3764]	307	ENDIF
[2480]	308
[6204]	309	#if defined key_agrif
	310	IF (Agrif_Root()) THEN
	311	CALL Agrif_MPI_Init(mpi_comm_opa)
	312	ELSE
	313	CALL Agrif_MPI_set_grid_comm(mpi_comm_opa)
	314	ENDIF
	315	#endif
	316
[1344]	317	CALL mpi_comm_rank( mpi_comm_opa, mpprank, ierr )
	318	CALL mpi_comm_size( mpi_comm_opa, mppsize, ierr )
[629]	319	mynode = mpprank
[4624]	320
	321	IF( mynode == 0 ) THEN
[5407]	322	CALL ctl_opn( kumond, TRIM(ldname), 'UNKNOWN', 'FORMATTED', 'SEQUENTIAL', -1, 6, .FALSE. , 1 )
	323	WRITE(kumond, nammpp)
[4624]	324	ENDIF
[3764]	325	!
[1976]	326	CALL MPI_OP_CREATE(DDPDD_MPI, .TRUE., MPI_SUMDD, ierr)
	327	!
[51]	328	END FUNCTION mynode
[3]	329
[888]	330	SUBROUTINE mpp_lnk_3d( ptab, cd_type, psgn, cd_mpp, pval )
[51]	331	!!----------------------------------------------------------------------
	332	!! * routine mpp_lnk_3d *
	333	!!
	334	!! ** Purpose : Message passing manadgement
	335	!!
[3764]	336	!! ** Method : Use mppsend and mpprecv function for passing mask
[51]	337	!! between processors following neighboring subdomains.
	338	!! domain parameters
	339	!! nlci : first dimension of the local subdomain
	340	!! nlcj : second dimension of the local subdomain
	341	!! nbondi : mark for "east-west local boundary"
	342	!! nbondj : mark for "north-south local boundary"
[3764]	343	!! noea : number for local neighboring processors
[51]	344	!! nowe : number for local neighboring processors
	345	!! noso : number for local neighboring processors
	346	!! nono : number for local neighboring processors
	347	!!
	348	!! ** Action : ptab with update value at its periphery
	349	!!
	350	!!----------------------------------------------------------------------
[1344]	351	REAL(wp), DIMENSION(jpi,jpj,jpk), INTENT(inout) :: ptab ! 3D array on which the boundary condition is applied
	352	CHARACTER(len=1) , INTENT(in ) :: cd_type ! define the nature of ptab array grid-points
	353	! ! = T , U , V , F , W points
	354	REAL(wp) , INTENT(in ) :: psgn ! =-1 the sign change across the north fold boundary
	355	! ! = 1. , the sign is kept
[3764]	356	CHARACTER(len=3), OPTIONAL , INTENT(in ) :: cd_mpp ! fill the overlap area only
[1344]	357	REAL(wp) , OPTIONAL , INTENT(in ) :: pval ! background value (used at closed boundaries)
	358	!!
[1718]	359	INTEGER :: ji, jj, jk, jl ! dummy loop indices
[1344]	360	INTEGER :: imigr, iihom, ijhom ! temporary integers
	361	INTEGER :: ml_req1, ml_req2, ml_err ! for key_mpi_isend
[888]	362	REAL(wp) :: zland
[1344]	363	INTEGER, DIMENSION(MPI_STATUS_SIZE) :: ml_stat ! for key_mpi_isend
[4152]	364	!
	365	REAL(wp), DIMENSION(:,:,:,:), ALLOCATABLE :: zt3ns, zt3sn ! 3d for north-south & south-north
	366	REAL(wp), DIMENSION(:,:,:,:), ALLOCATABLE :: zt3ew, zt3we ! 3d for east-west & west-east
	367
[51]	368	!!----------------------------------------------------------------------
[4152]	369
	370	ALLOCATE( zt3ns(jpi,jprecj,jpk,2), zt3sn(jpi,jprecj,jpk,2), &
	371	& zt3ew(jpj,jpreci,jpk,2), zt3we(jpj,jpreci,jpk,2) )
[3]	372
[4152]	373	!
[1344]	374	IF( PRESENT( pval ) ) THEN ; zland = pval ! set land value
	375	ELSE ; zland = 0.e0 ! zero by default
	376	ENDIF
	377
[51]	378	! 1. standard boundary treatment
	379	! ------------------------------
[1718]	380	IF( PRESENT( cd_mpp ) ) THEN ! only fill added line/raw with existing values
[1344]	381	!
[1718]	382	! WARNING ptab is defined only between nld and nle
	383	DO jk = 1, jpk
	384	DO jj = nlcj+1, jpj ! added line(s) (inner only)
[3764]	385	ptab(nldi :nlei , jj ,jk) = ptab(nldi:nlei, nlej,jk)
[1718]	386	ptab(1 :nldi-1, jj ,jk) = ptab(nldi , nlej,jk)
	387	ptab(nlei+1:nlci , jj ,jk) = ptab( nlei, nlej,jk)
	388	END DO
	389	DO ji = nlci+1, jpi ! added column(s) (full)
	390	ptab(ji ,nldj :nlej ,jk) = ptab( nlei,nldj:nlej,jk)
	391	ptab(ji ,1 :nldj-1,jk) = ptab( nlei,nldj ,jk)
	392	ptab(ji ,nlej+1:jpj ,jk) = ptab( nlei, nlej,jk)
	393	END DO
[610]	394	END DO
[1344]	395	!
[3764]	396	ELSE ! standard close or cyclic treatment
[1344]	397	!
	398	! ! East-West boundaries
	399	! !* Cyclic east-west
	400	IF( nbondi == 2 .AND. (nperio == 1 .OR. nperio == 4 .OR. nperio == 6) ) THEN
[473]	401	ptab( 1 ,:,:) = ptab(jpim1,:,:)
	402	ptab(jpi,:,:) = ptab( 2 ,:,:)
[1344]	403	ELSE !* closed
	404	IF( .NOT. cd_type == 'F' ) ptab( 1 :jpreci,:,:) = zland ! south except F-point
	405	ptab(nlci-jpreci+1:jpi ,:,:) = zland ! north
[473]	406	ENDIF
[1344]	407	! ! North-South boundaries (always closed)
	408	IF( .NOT. cd_type == 'F' ) ptab(:, 1 :jprecj,:) = zland ! south except F-point
	409	ptab(:,nlcj-jprecj+1:jpj ,:) = zland ! north
	410	!
[51]	411	ENDIF
[3]	412
[51]	413	! 2. East and west directions exchange
	414	! ------------------------------------
[3764]	415	! we play with the neigbours AND the row number because of the periodicity
[1344]	416	!
	417	SELECT CASE ( nbondi ) ! Read Dirichlet lateral conditions
	418	CASE ( -1, 0, 1 ) ! all exept 2 (i.e. close case)
[51]	419	iihom = nlci-nreci
	420	DO jl = 1, jpreci
[4152]	421	zt3ew(:,jl,:,1) = ptab(jpreci+jl,:,:)
	422	zt3we(:,jl,:,1) = ptab(iihom +jl,:,:)
[51]	423	END DO
[3764]	424	END SELECT
[1344]	425	!
	426	! ! Migrations
[51]	427	imigr = jpreci * jpj * jpk
[1344]	428	!
[3764]	429	SELECT CASE ( nbondi )
[51]	430	CASE ( -1 )
[4152]	431	CALL mppsend( 2, zt3we(1,1,1,1), imigr, noea, ml_req1 )
	432	CALL mpprecv( 1, zt3ew(1,1,1,2), imigr, noea )
[300]	433	IF(l_isend) CALL mpi_wait(ml_req1, ml_stat, ml_err)
[51]	434	CASE ( 0 )
[4152]	435	CALL mppsend( 1, zt3ew(1,1,1,1), imigr, nowe, ml_req1 )
	436	CALL mppsend( 2, zt3we(1,1,1,1), imigr, noea, ml_req2 )
	437	CALL mpprecv( 1, zt3ew(1,1,1,2), imigr, noea )
	438	CALL mpprecv( 2, zt3we(1,1,1,2), imigr, nowe )
[300]	439	IF(l_isend) CALL mpi_wait(ml_req1, ml_stat, ml_err)
	440	IF(l_isend) CALL mpi_wait(ml_req2, ml_stat, ml_err)
[51]	441	CASE ( 1 )
[4152]	442	CALL mppsend( 1, zt3ew(1,1,1,1), imigr, nowe, ml_req1 )
	443	CALL mpprecv( 2, zt3we(1,1,1,2), imigr, nowe )
[300]	444	IF(l_isend) CALL mpi_wait(ml_req1, ml_stat, ml_err)
[51]	445	END SELECT
[1344]	446	!
	447	! ! Write Dirichlet lateral conditions
[51]	448	iihom = nlci-jpreci
[1344]	449	!
[51]	450	SELECT CASE ( nbondi )
	451	CASE ( -1 )
	452	DO jl = 1, jpreci
[4152]	453	ptab(iihom+jl,:,:) = zt3ew(:,jl,:,2)
[51]	454	END DO
[3764]	455	CASE ( 0 )
[51]	456	DO jl = 1, jpreci
[4152]	457	ptab(jl ,:,:) = zt3we(:,jl,:,2)
	458	ptab(iihom+jl,:,:) = zt3ew(:,jl,:,2)
[51]	459	END DO
	460	CASE ( 1 )
	461	DO jl = 1, jpreci
[4152]	462	ptab(jl ,:,:) = zt3we(:,jl,:,2)
[51]	463	END DO
	464	END SELECT
[3]	465
	466
[51]	467	! 3. North and south directions
	468	! -----------------------------
[1344]	469	! always closed : we play only with the neigbours
	470	!
	471	IF( nbondj /= 2 ) THEN ! Read Dirichlet lateral conditions
[51]	472	ijhom = nlcj-nrecj
	473	DO jl = 1, jprecj
[4152]	474	zt3sn(:,jl,:,1) = ptab(:,ijhom +jl,:)
	475	zt3ns(:,jl,:,1) = ptab(:,jprecj+jl,:)
[51]	476	END DO
	477	ENDIF
[1344]	478	!
	479	! ! Migrations
[51]	480	imigr = jprecj * jpi * jpk
[1344]	481	!
[3764]	482	SELECT CASE ( nbondj )
[51]	483	CASE ( -1 )
[4152]	484	CALL mppsend( 4, zt3sn(1,1,1,1), imigr, nono, ml_req1 )
	485	CALL mpprecv( 3, zt3ns(1,1,1,2), imigr, nono )
[300]	486	IF(l_isend) CALL mpi_wait(ml_req1, ml_stat, ml_err)
[51]	487	CASE ( 0 )
[4152]	488	CALL mppsend( 3, zt3ns(1,1,1,1), imigr, noso, ml_req1 )
	489	CALL mppsend( 4, zt3sn(1,1,1,1), imigr, nono, ml_req2 )
	490	CALL mpprecv( 3, zt3ns(1,1,1,2), imigr, nono )
	491	CALL mpprecv( 4, zt3sn(1,1,1,2), imigr, noso )
[300]	492	IF(l_isend) CALL mpi_wait(ml_req1, ml_stat, ml_err)
	493	IF(l_isend) CALL mpi_wait(ml_req2, ml_stat, ml_err)
[3764]	494	CASE ( 1 )
[4152]	495	CALL mppsend( 3, zt3ns(1,1,1,1), imigr, noso, ml_req1 )
	496	CALL mpprecv( 4, zt3sn(1,1,1,2), imigr, noso )
[300]	497	IF(l_isend) CALL mpi_wait(ml_req1, ml_stat, ml_err)
[51]	498	END SELECT
[1344]	499	!
	500	! ! Write Dirichlet lateral conditions
[51]	501	ijhom = nlcj-jprecj
[1344]	502	!
[51]	503	SELECT CASE ( nbondj )
	504	CASE ( -1 )
	505	DO jl = 1, jprecj
[4152]	506	ptab(:,ijhom+jl,:) = zt3ns(:,jl,:,2)
[51]	507	END DO
[3764]	508	CASE ( 0 )
[51]	509	DO jl = 1, jprecj
[4152]	510	ptab(:,jl ,:) = zt3sn(:,jl,:,2)
	511	ptab(:,ijhom+jl,:) = zt3ns(:,jl,:,2)
[51]	512	END DO
	513	CASE ( 1 )
	514	DO jl = 1, jprecj
[4152]	515	ptab(:,jl,:) = zt3sn(:,jl,:,2)
[51]	516	END DO
	517	END SELECT
[3]	518
	519
[51]	520	! 4. north fold treatment
	521	! -----------------------
[1344]	522	!
	523	IF( npolj /= 0 .AND. .NOT. PRESENT(cd_mpp) ) THEN
	524	!
	525	SELECT CASE ( jpni )
	526	CASE ( 1 ) ; CALL lbc_nfd ( ptab, cd_type, psgn ) ! only 1 northern proc, no mpp
	527	CASE DEFAULT ; CALL mpp_lbc_north( ptab, cd_type, psgn ) ! for all northern procs.
	528	END SELECT
	529	!
[473]	530	ENDIF
[1344]	531	!
[4152]	532	DEALLOCATE( zt3ns, zt3sn, zt3ew, zt3we )
	533	!
[51]	534	END SUBROUTINE mpp_lnk_3d
[3]	535
[5429]	536	SUBROUTINE mpp_lnk_2d_multiple( pt2d_array , type_array , psgn_array , num_fields , cd_mpp, pval )
	537	!!----------------------------------------------------------------------
	538	!! * routine mpp_lnk_2d_multiple *
	539	!!
	540	!! ** Purpose : Message passing management for multiple 2d arrays
	541	!!
	542	!! ** Method : Use mppsend and mpprecv function for passing mask
	543	!! between processors following neighboring subdomains.
	544	!! domain parameters
	545	!! nlci : first dimension of the local subdomain
	546	!! nlcj : second dimension of the local subdomain
	547	!! nbondi : mark for "east-west local boundary"
	548	!! nbondj : mark for "north-south local boundary"
	549	!! noea : number for local neighboring processors
	550	!! nowe : number for local neighboring processors
	551	!! noso : number for local neighboring processors
	552	!! nono : number for local neighboring processors
	553	!!
	554	!!----------------------------------------------------------------------
[3]	555
[5429]	556	INTEGER :: num_fields
	557	TYPE( arrayptr ), DIMENSION(:) :: pt2d_array
	558	CHARACTER(len=1), DIMENSION(:), INTENT(in ) :: type_array ! define the nature of ptab array grid-points
	559	! ! = T , U , V , F , W and I points
	560	REAL(wp) , DIMENSION(:), INTENT(in ) :: psgn_array ! =-1 the sign change across the north fold boundary
	561	! ! = 1. , the sign is kept
	562	CHARACTER(len=3), OPTIONAL , INTENT(in ) :: cd_mpp ! fill the overlap area only
	563	REAL(wp) , OPTIONAL , INTENT(in ) :: pval ! background value (used at closed boundaries)
	564	!!
	565	INTEGER :: ji, jj, jl ! dummy loop indices
	566	INTEGER :: ii !!MULTI SEND DUMMY LOOP INDICES
	567	INTEGER :: imigr, iihom, ijhom ! temporary integers
	568	INTEGER :: ml_req1, ml_req2, ml_err ! for key_mpi_isend
	569
	570	REAL(wp) :: zland
	571	INTEGER, DIMENSION(MPI_STATUS_SIZE) :: ml_stat ! for key_mpi_isend
	572	!
	573	REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: zt2ns, zt2sn ! 2d for north-south & south-north
	574	REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: zt2ew, zt2we ! 2d for east-west & west-east
	575
	576	!!----------------------------------------------------------------------
	577
	578	ALLOCATE( zt2ns(jpi,jprecj,2num_fields), zt2sn(jpi,jprecj,2num_fields), &
	579	& zt2ew(jpj,jpreci,2num_fields), zt2we(jpj,jpreci,2num_fields) )
	580
	581	!
	582	IF( PRESENT( pval ) ) THEN ; zland = pval ! set land value
	583	ELSE ; zland = 0.e0 ! zero by default
	584	ENDIF
	585
	586	! 1. standard boundary treatment
	587	! ------------------------------
	588	!
	589	!First Array
	590	DO ii = 1 , num_fields
	591	IF( PRESENT( cd_mpp ) ) THEN ! only fill added line/raw with existing values
	592	!
	593	! WARNING pt2d is defined only between nld and nle
	594	DO jj = nlcj+1, jpj ! added line(s) (inner only)
	595	pt2d_array(ii)%pt2d(nldi :nlei , jj) = pt2d_array(ii)%pt2d(nldi:nlei, nlej)
	596	pt2d_array(ii)%pt2d(1 :nldi-1, jj) = pt2d_array(ii)%pt2d(nldi , nlej)
	597	pt2d_array(ii)%pt2d(nlei+1:nlci , jj) = pt2d_array(ii)%pt2d( nlei, nlej)
	598	END DO
	599	DO ji = nlci+1, jpi ! added column(s) (full)
	600	pt2d_array(ii)%pt2d(ji, nldj :nlej ) = pt2d_array(ii)%pt2d(nlei, nldj:nlej)
	601	pt2d_array(ii)%pt2d(ji, 1 :nldj-1) = pt2d_array(ii)%pt2d(nlei, nldj )
	602	pt2d_array(ii)%pt2d(ji, nlej+1:jpj ) = pt2d_array(ii)%pt2d(nlei, nlej)
	603	END DO
	604	!
	605	ELSE ! standard close or cyclic treatment
	606	!
	607	! ! East-West boundaries
	608	IF( nbondi == 2 .AND. & ! Cyclic east-west
	609	& (nperio == 1 .OR. nperio == 4 .OR. nperio == 6) ) THEN
	610	pt2d_array(ii)%pt2d( 1 , : ) = pt2d_array(ii)%pt2d( jpim1, : ) ! west
	611	pt2d_array(ii)%pt2d( jpi , : ) = pt2d_array(ii)%pt2d( 2 , : ) ! east
	612	ELSE ! closed
	613	IF( .NOT. type_array(ii) == 'F' ) pt2d_array(ii)%pt2d( 1 : jpreci,:) = zland ! south except F-point
	614	pt2d_array(ii)%pt2d(nlci-jpreci+1 : jpi ,:) = zland ! north
	615	ENDIF
	616	! ! North-South boundaries (always closed)
	617	IF( .NOT. type_array(ii) == 'F' ) pt2d_array(ii)%pt2d(:, 1:jprecj ) = zland ! south except F-point
	618	pt2d_array(ii)%pt2d(:, nlcj-jprecj+1:jpj ) = zland ! north
	619	!
	620	ENDIF
	621	END DO
	622
	623	! 2. East and west directions exchange
	624	! ------------------------------------
	625	! we play with the neigbours AND the row number because of the periodicity
	626	!
	627	DO ii = 1 , num_fields
	628	SELECT CASE ( nbondi ) ! Read Dirichlet lateral conditions
	629	CASE ( -1, 0, 1 ) ! all exept 2 (i.e. close case)
	630	iihom = nlci-nreci
	631	DO jl = 1, jpreci
	632	zt2ew( : , jl , ii ) = pt2d_array(ii)%pt2d( jpreci+jl , : )
	633	zt2we( : , jl , ii ) = pt2d_array(ii)%pt2d( iihom +jl , : )
	634	END DO
	635	END SELECT
	636	END DO
	637	!
	638	! ! Migrations
	639	imigr = jpreci * jpj
	640	!
	641	SELECT CASE ( nbondi )
	642	CASE ( -1 )
	643	CALL mppsend( 2, zt2we(1,1,1), num_fields*imigr, noea, ml_req1 )
	644	CALL mpprecv( 1, zt2ew(1,1,num_fields+1), num_fields*imigr, noea )
	645	IF(l_isend) CALL mpi_wait(ml_req1,ml_stat,ml_err)
	646	CASE ( 0 )
	647	CALL mppsend( 1, zt2ew(1,1,1), num_fields*imigr, nowe, ml_req1 )
	648	CALL mppsend( 2, zt2we(1,1,1), num_fields*imigr, noea, ml_req2 )
	649	CALL mpprecv( 1, zt2ew(1,1,num_fields+1), num_fields*imigr, noea )
	650	CALL mpprecv( 2, zt2we(1,1,num_fields+1), num_fields*imigr, nowe )
	651	IF(l_isend) CALL mpi_wait(ml_req1,ml_stat,ml_err)
	652	IF(l_isend) CALL mpi_wait(ml_req2,ml_stat,ml_err)
	653	CASE ( 1 )
	654	CALL mppsend( 1, zt2ew(1,1,1), num_fields*imigr, nowe, ml_req1 )
	655	CALL mpprecv( 2, zt2we(1,1,num_fields+1), num_fields*imigr, nowe )
	656	IF(l_isend) CALL mpi_wait(ml_req1,ml_stat,ml_err)
	657	END SELECT
	658	!
	659	! ! Write Dirichlet lateral conditions
	660	iihom = nlci - jpreci
	661	!
	662
	663	DO ii = 1 , num_fields
	664	SELECT CASE ( nbondi )
	665	CASE ( -1 )
	666	DO jl = 1, jpreci
	667	pt2d_array(ii)%pt2d( iihom+jl , : ) = zt2ew(:,jl,num_fields+ii)
	668	END DO
	669	CASE ( 0 )
	670	DO jl = 1, jpreci
	671	pt2d_array(ii)%pt2d( jl , : ) = zt2we(:,jl,num_fields+ii)
	672	pt2d_array(ii)%pt2d( iihom+jl , : ) = zt2ew(:,jl,num_fields+ii)
	673	END DO
	674	CASE ( 1 )
	675	DO jl = 1, jpreci
	676	pt2d_array(ii)%pt2d( jl , : )= zt2we(:,jl,num_fields+ii)
	677	END DO
	678	END SELECT
	679	END DO
	680
	681	! 3. North and south directions
	682	! -----------------------------
	683	! always closed : we play only with the neigbours
	684	!
	685	!First Array
	686	DO ii = 1 , num_fields
	687	IF( nbondj /= 2 ) THEN ! Read Dirichlet lateral conditions
	688	ijhom = nlcj-nrecj
	689	DO jl = 1, jprecj
	690	zt2sn(:,jl , ii) = pt2d_array(ii)%pt2d( : , ijhom +jl )
	691	zt2ns(:,jl , ii) = pt2d_array(ii)%pt2d( : , jprecj+jl )
	692	END DO
	693	ENDIF
	694	END DO
	695	!
	696	! ! Migrations
	697	imigr = jprecj * jpi
	698	!
	699	SELECT CASE ( nbondj )
	700	CASE ( -1 )
	701	CALL mppsend( 4, zt2sn(1,1,1), num_fields*imigr, nono, ml_req1 )
	702	CALL mpprecv( 3, zt2ns(1,1,num_fields+1), num_fields*imigr, nono )
	703	IF(l_isend) CALL mpi_wait(ml_req1,ml_stat,ml_err)
	704	CASE ( 0 )
	705	CALL mppsend( 3, zt2ns(1,1,1), num_fields*imigr, noso, ml_req1 )
	706	CALL mppsend( 4, zt2sn(1,1,1), num_fields*imigr, nono, ml_req2 )
	707	CALL mpprecv( 3, zt2ns(1,1,num_fields+1), num_fields*imigr, nono )
	708	CALL mpprecv( 4, zt2sn(1,1,num_fields+1), num_fields*imigr, noso )
	709	IF(l_isend) CALL mpi_wait(ml_req1,ml_stat,ml_err)
	710	IF(l_isend) CALL mpi_wait(ml_req2,ml_stat,ml_err)
	711	CASE ( 1 )
	712	CALL mppsend( 3, zt2ns(1,1,1), num_fields*imigr, noso, ml_req1 )
	713	CALL mpprecv( 4, zt2sn(1,1,num_fields+1), num_fields*imigr, noso )
	714	IF(l_isend) CALL mpi_wait(ml_req1,ml_stat,ml_err)
	715	END SELECT
	716	!
	717	! ! Write Dirichlet lateral conditions
	718	ijhom = nlcj - jprecj
	719	!
	720
	721	DO ii = 1 , num_fields
	722	!First Array
	723	SELECT CASE ( nbondj )
	724	CASE ( -1 )
	725	DO jl = 1, jprecj
	726	pt2d_array(ii)%pt2d( : , ijhom+jl ) = zt2ns( : , jl , num_fields+ii )
	727	END DO
	728	CASE ( 0 )
	729	DO jl = 1, jprecj
	730	pt2d_array(ii)%pt2d( : , jl ) = zt2sn( : , jl , num_fields + ii)
	731	pt2d_array(ii)%pt2d( : , ijhom + jl ) = zt2ns( : , jl , num_fields + ii )
	732	END DO
	733	CASE ( 1 )
	734	DO jl = 1, jprecj
	735	pt2d_array(ii)%pt2d( : , jl ) = zt2sn( : , jl , num_fields + ii )
	736	END DO
	737	END SELECT
	738	END DO
	739
	740	! 4. north fold treatment
	741	! -----------------------
	742	!
	743	!First Array
[6476]	744	IF( npolj /= 0 .AND. .NOT. PRESENT(cd_mpp) ) THEN
[5429]	745	!
[6476]	746	SELECT CASE ( jpni )
	747	CASE ( 1 ) ;
	748	DO ii = 1 , num_fields
	749	CALL lbc_nfd ( pt2d_array(ii)%pt2d( : , : ), type_array(ii) , psgn_array(ii) ) ! only 1 northern proc, no mpp
	750	END DO
	751	CASE DEFAULT ; CALL mpp_lbc_north_2d_multiple( pt2d_array, type_array, psgn_array, num_fields ) ! for all northern procs.
	752	END SELECT
	753	!
	754	ENDIF
	755	!
[5429]	756
	757	DEALLOCATE( zt2ns, zt2sn, zt2ew, zt2we )
	758	!
	759	END SUBROUTINE mpp_lnk_2d_multiple
	760
	761
	762	SUBROUTINE load_array(pt2d,cd_type,psgn,pt2d_array, type_array, psgn_array,num_fields)
	763	!!---------------------------------------------------------------------
	764	REAL(wp), DIMENSION(jpi,jpj), TARGET , INTENT(inout) :: pt2d ! Second 2D array on which the boundary condition is applied
	765	CHARACTER(len=1) , INTENT(in ) :: cd_type ! define the nature of ptab array grid-points
	766	REAL(wp) , INTENT(in ) :: psgn ! =-1 the sign change across the north fold boundary
	767	TYPE(arrayptr) , DIMENSION(9) :: pt2d_array
	768	CHARACTER(len=1) , DIMENSION(9) :: type_array ! define the nature of ptab array grid-points
	769	REAL(wp) , DIMENSION(9) :: psgn_array ! =-1 the sign change across the north fold boundary
	770	INTEGER , INTENT (inout):: num_fields
	771	!!---------------------------------------------------------------------
	772	num_fields=num_fields+1
	773	pt2d_array(num_fields)%pt2d=>pt2d
	774	type_array(num_fields)=cd_type
	775	psgn_array(num_fields)=psgn
	776	END SUBROUTINE load_array
	777
	778
	779	SUBROUTINE mpp_lnk_2d_9( pt2dA, cd_typeA, psgnA, pt2dB, cd_typeB, psgnB, pt2dC, cd_typeC, psgnC &
	780	& , pt2dD, cd_typeD, psgnD, pt2dE, cd_typeE, psgnE, pt2dF, cd_typeF, psgnF &
	781	& , pt2dG, cd_typeG, psgnG, pt2dH, cd_typeH, psgnH, pt2dI, cd_typeI, psgnI, cd_mpp, pval)
	782	!!---------------------------------------------------------------------
	783	! Second 2D array on which the boundary condition is applied
	784	REAL(wp), DIMENSION(jpi,jpj), TARGET , INTENT(inout) :: pt2dA
	785	REAL(wp), DIMENSION(jpi,jpj), TARGET, OPTIONAL, INTENT(inout) :: pt2dB , pt2dC , pt2dD , pt2dE
	786	REAL(wp), DIMENSION(jpi,jpj), TARGET, OPTIONAL, INTENT(inout) :: pt2dF , pt2dG , pt2dH , pt2dI
	787	! define the nature of ptab array grid-points
	788	CHARACTER(len=1) , INTENT(in ) :: cd_typeA
	789	CHARACTER(len=1) , OPTIONAL, INTENT(in ) :: cd_typeB , cd_typeC , cd_typeD , cd_typeE
	790	CHARACTER(len=1) , OPTIONAL, INTENT(in ) :: cd_typeF , cd_typeG , cd_typeH , cd_typeI
	791	! =-1 the sign change across the north fold boundary
	792	REAL(wp) , INTENT(in ) :: psgnA
	793	REAL(wp) , OPTIONAL, INTENT(in ) :: psgnB , psgnC , psgnD , psgnE
	794	REAL(wp) , OPTIONAL, INTENT(in ) :: psgnF , psgnG , psgnH , psgnI
	795	CHARACTER(len=3) , OPTIONAL, INTENT(in ) :: cd_mpp ! fill the overlap area only
	796	REAL(wp) , OPTIONAL, INTENT(in ) :: pval ! background value (used at closed boundaries)
	797	!!
	798	TYPE(arrayptr) , DIMENSION(9) :: pt2d_array
	799	CHARACTER(len=1) , DIMENSION(9) :: type_array ! define the nature of ptab array grid-points
	800	! ! = T , U , V , F , W and I points
	801	REAL(wp) , DIMENSION(9) :: psgn_array ! =-1 the sign change across the north fold boundary
	802	INTEGER :: num_fields
	803	!!---------------------------------------------------------------------
	804
	805	num_fields = 0
	806
	807	!! Load the first array
	808	CALL load_array(pt2dA,cd_typeA,psgnA,pt2d_array, type_array, psgn_array,num_fields)
	809
	810	!! Look if more arrays are added
	811	IF(PRESENT (psgnB) )CALL load_array(pt2dB,cd_typeB,psgnB,pt2d_array, type_array, psgn_array,num_fields)
	812	IF(PRESENT (psgnC) )CALL load_array(pt2dC,cd_typeC,psgnC,pt2d_array, type_array, psgn_array,num_fields)
	813	IF(PRESENT (psgnD) )CALL load_array(pt2dD,cd_typeD,psgnD,pt2d_array, type_array, psgn_array,num_fields)
	814	IF(PRESENT (psgnE) )CALL load_array(pt2dE,cd_typeE,psgnE,pt2d_array, type_array, psgn_array,num_fields)
	815	IF(PRESENT (psgnF) )CALL load_array(pt2dF,cd_typeF,psgnF,pt2d_array, type_array, psgn_array,num_fields)
	816	IF(PRESENT (psgnG) )CALL load_array(pt2dG,cd_typeG,psgnG,pt2d_array, type_array, psgn_array,num_fields)
	817	IF(PRESENT (psgnH) )CALL load_array(pt2dH,cd_typeH,psgnH,pt2d_array, type_array, psgn_array,num_fields)
	818	IF(PRESENT (psgnI) )CALL load_array(pt2dI,cd_typeI,psgnI,pt2d_array, type_array, psgn_array,num_fields)
	819
	820	CALL mpp_lnk_2d_multiple(pt2d_array,type_array,psgn_array,num_fields,cd_mpp,pval)
	821	END SUBROUTINE mpp_lnk_2d_9
	822
	823
[888]	824	SUBROUTINE mpp_lnk_2d( pt2d, cd_type, psgn, cd_mpp, pval )
[51]	825	!!----------------------------------------------------------------------
	826	!! * routine mpp_lnk_2d *
[3764]	827	!!
[51]	828	!! ** Purpose : Message passing manadgement for 2d array
	829	!!
[3764]	830	!! ** Method : Use mppsend and mpprecv function for passing mask
[51]	831	!! between processors following neighboring subdomains.
	832	!! domain parameters
	833	!! nlci : first dimension of the local subdomain
	834	!! nlcj : second dimension of the local subdomain
	835	!! nbondi : mark for "east-west local boundary"
	836	!! nbondj : mark for "north-south local boundary"
[3764]	837	!! noea : number for local neighboring processors
[51]	838	!! nowe : number for local neighboring processors
	839	!! noso : number for local neighboring processors
	840	!! nono : number for local neighboring processors
	841	!!
	842	!!----------------------------------------------------------------------
[1344]	843	REAL(wp), DIMENSION(jpi,jpj), INTENT(inout) :: pt2d ! 2D array on which the boundary condition is applied
	844	CHARACTER(len=1) , INTENT(in ) :: cd_type ! define the nature of ptab array grid-points
	845	! ! = T , U , V , F , W and I points
	846	REAL(wp) , INTENT(in ) :: psgn ! =-1 the sign change across the north fold boundary
	847	! ! = 1. , the sign is kept
[3764]	848	CHARACTER(len=3), OPTIONAL , INTENT(in ) :: cd_mpp ! fill the overlap area only
[1344]	849	REAL(wp) , OPTIONAL , INTENT(in ) :: pval ! background value (used at closed boundaries)
	850	!!
	851	INTEGER :: ji, jj, jl ! dummy loop indices
	852	INTEGER :: imigr, iihom, ijhom ! temporary integers
	853	INTEGER :: ml_req1, ml_req2, ml_err ! for key_mpi_isend
[888]	854	REAL(wp) :: zland
[1344]	855	INTEGER, DIMENSION(MPI_STATUS_SIZE) :: ml_stat ! for key_mpi_isend
[4152]	856	!
	857	REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: zt2ns, zt2sn ! 2d for north-south & south-north
	858	REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: zt2ew, zt2we ! 2d for east-west & west-east
	859
[51]	860	!!----------------------------------------------------------------------
[3]	861
[4152]	862	ALLOCATE( zt2ns(jpi,jprecj,2), zt2sn(jpi,jprecj,2), &
	863	& zt2ew(jpj,jpreci,2), zt2we(jpj,jpreci,2) )
	864
	865	!
[1344]	866	IF( PRESENT( pval ) ) THEN ; zland = pval ! set land value
	867	ELSE ; zland = 0.e0 ! zero by default
[888]	868	ENDIF
	869
[51]	870	! 1. standard boundary treatment
	871	! ------------------------------
[1344]	872	!
[1718]	873	IF( PRESENT( cd_mpp ) ) THEN ! only fill added line/raw with existing values
[1344]	874	!
[1718]	875	! WARNING pt2d is defined only between nld and nle
	876	DO jj = nlcj+1, jpj ! added line(s) (inner only)
[3764]	877	pt2d(nldi :nlei , jj ) = pt2d(nldi:nlei, nlej)
[1718]	878	pt2d(1 :nldi-1, jj ) = pt2d(nldi , nlej)
	879	pt2d(nlei+1:nlci , jj ) = pt2d( nlei, nlej)
[610]	880	END DO
[1718]	881	DO ji = nlci+1, jpi ! added column(s) (full)
	882	pt2d(ji ,nldj :nlej ) = pt2d( nlei,nldj:nlej)
	883	pt2d(ji ,1 :nldj-1) = pt2d( nlei,nldj )
	884	pt2d(ji ,nlej+1:jpj ) = pt2d( nlei, nlej)
[1344]	885	END DO
	886	!
[3764]	887	ELSE ! standard close or cyclic treatment
[1344]	888	!
	889	! ! East-West boundaries
	890	IF( nbondi == 2 .AND. & ! Cyclic east-west
[473]	891	& (nperio == 1 .OR. nperio == 4 .OR. nperio == 6) ) THEN
[1344]	892	pt2d( 1 ,:) = pt2d(jpim1,:) ! west
	893	pt2d(jpi,:) = pt2d( 2 ,:) ! east
	894	ELSE ! closed
	895	IF( .NOT. cd_type == 'F' ) pt2d( 1 :jpreci,:) = zland ! south except F-point
	896	pt2d(nlci-jpreci+1:jpi ,:) = zland ! north
[473]	897	ENDIF
[1344]	898	! ! North-South boundaries (always closed)
	899	IF( .NOT. cd_type == 'F' ) pt2d(:, 1 :jprecj) = zland !south except F-point
	900	pt2d(:,nlcj-jprecj+1:jpj ) = zland ! north
	901	!
[51]	902	ENDIF
[3]	903
[1344]	904	! 2. East and west directions exchange
	905	! ------------------------------------
[3764]	906	! we play with the neigbours AND the row number because of the periodicity
[1344]	907	!
	908	SELECT CASE ( nbondi ) ! Read Dirichlet lateral conditions
	909	CASE ( -1, 0, 1 ) ! all exept 2 (i.e. close case)
[51]	910	iihom = nlci-nreci
	911	DO jl = 1, jpreci
[4152]	912	zt2ew(:,jl,1) = pt2d(jpreci+jl,:)
	913	zt2we(:,jl,1) = pt2d(iihom +jl,:)
[51]	914	END DO
	915	END SELECT
[1344]	916	!
	917	! ! Migrations
[51]	918	imigr = jpreci * jpj
[1344]	919	!
[51]	920	SELECT CASE ( nbondi )
	921	CASE ( -1 )
[4152]	922	CALL mppsend( 2, zt2we(1,1,1), imigr, noea, ml_req1 )
	923	CALL mpprecv( 1, zt2ew(1,1,2), imigr, noea )
[300]	924	IF(l_isend) CALL mpi_wait(ml_req1,ml_stat,ml_err)
[51]	925	CASE ( 0 )
[4152]	926	CALL mppsend( 1, zt2ew(1,1,1), imigr, nowe, ml_req1 )
	927	CALL mppsend( 2, zt2we(1,1,1), imigr, noea, ml_req2 )
	928	CALL mpprecv( 1, zt2ew(1,1,2), imigr, noea )
	929	CALL mpprecv( 2, zt2we(1,1,2), imigr, nowe )
[300]	930	IF(l_isend) CALL mpi_wait(ml_req1,ml_stat,ml_err)
	931	IF(l_isend) CALL mpi_wait(ml_req2,ml_stat,ml_err)
[51]	932	CASE ( 1 )
[4152]	933	CALL mppsend( 1, zt2ew(1,1,1), imigr, nowe, ml_req1 )
	934	CALL mpprecv( 2, zt2we(1,1,2), imigr, nowe )
[300]	935	IF(l_isend) CALL mpi_wait(ml_req1,ml_stat,ml_err)
[51]	936	END SELECT
[1344]	937	!
	938	! ! Write Dirichlet lateral conditions
[51]	939	iihom = nlci - jpreci
[1344]	940	!
[51]	941	SELECT CASE ( nbondi )
	942	CASE ( -1 )
	943	DO jl = 1, jpreci
[4152]	944	pt2d(iihom+jl,:) = zt2ew(:,jl,2)
[51]	945	END DO
	946	CASE ( 0 )
	947	DO jl = 1, jpreci
[4152]	948	pt2d(jl ,:) = zt2we(:,jl,2)
	949	pt2d(iihom+jl,:) = zt2ew(:,jl,2)
[51]	950	END DO
	951	CASE ( 1 )
	952	DO jl = 1, jpreci
[4152]	953	pt2d(jl ,:) = zt2we(:,jl,2)
[51]	954	END DO
	955	END SELECT
[3]	956
	957
[51]	958	! 3. North and south directions
	959	! -----------------------------
[1344]	960	! always closed : we play only with the neigbours
	961	!
	962	IF( nbondj /= 2 ) THEN ! Read Dirichlet lateral conditions
[51]	963	ijhom = nlcj-nrecj
	964	DO jl = 1, jprecj
[4152]	965	zt2sn(:,jl,1) = pt2d(:,ijhom +jl)
	966	zt2ns(:,jl,1) = pt2d(:,jprecj+jl)
[51]	967	END DO
	968	ENDIF
[1344]	969	!
	970	! ! Migrations
[51]	971	imigr = jprecj * jpi
[1344]	972	!
[51]	973	SELECT CASE ( nbondj )
	974	CASE ( -1 )
[4152]	975	CALL mppsend( 4, zt2sn(1,1,1), imigr, nono, ml_req1 )
	976	CALL mpprecv( 3, zt2ns(1,1,2), imigr, nono )
[300]	977	IF(l_isend) CALL mpi_wait(ml_req1,ml_stat,ml_err)
[51]	978	CASE ( 0 )
[4152]	979	CALL mppsend( 3, zt2ns(1,1,1), imigr, noso, ml_req1 )
	980	CALL mppsend( 4, zt2sn(1,1,1), imigr, nono, ml_req2 )
	981	CALL mpprecv( 3, zt2ns(1,1,2), imigr, nono )
	982	CALL mpprecv( 4, zt2sn(1,1,2), imigr, noso )
[300]	983	IF(l_isend) CALL mpi_wait(ml_req1,ml_stat,ml_err)
	984	IF(l_isend) CALL mpi_wait(ml_req2,ml_stat,ml_err)
[51]	985	CASE ( 1 )
[4152]	986	CALL mppsend( 3, zt2ns(1,1,1), imigr, noso, ml_req1 )
	987	CALL mpprecv( 4, zt2sn(1,1,2), imigr, noso )
[300]	988	IF(l_isend) CALL mpi_wait(ml_req1,ml_stat,ml_err)
[51]	989	END SELECT
[1344]	990	!
	991	! ! Write Dirichlet lateral conditions
[51]	992	ijhom = nlcj - jprecj
[1344]	993	!
[51]	994	SELECT CASE ( nbondj )
	995	CASE ( -1 )
	996	DO jl = 1, jprecj
[4152]	997	pt2d(:,ijhom+jl) = zt2ns(:,jl,2)
[51]	998	END DO
	999	CASE ( 0 )
	1000	DO jl = 1, jprecj
[4152]	1001	pt2d(:,jl ) = zt2sn(:,jl,2)
	1002	pt2d(:,ijhom+jl) = zt2ns(:,jl,2)
[51]	1003	END DO
[3764]	1004	CASE ( 1 )
[51]	1005	DO jl = 1, jprecj
[4152]	1006	pt2d(:,jl ) = zt2sn(:,jl,2)
[51]	1007	END DO
[1344]	1008	END SELECT
[3]	1009
[1344]	1010
[51]	1011	! 4. north fold treatment
	1012	! -----------------------
[1344]	1013	!
	1014	IF( npolj /= 0 .AND. .NOT. PRESENT(cd_mpp) ) THEN
	1015	!
	1016	SELECT CASE ( jpni )
	1017	CASE ( 1 ) ; CALL lbc_nfd ( pt2d, cd_type, psgn ) ! only 1 northern proc, no mpp
	1018	CASE DEFAULT ; CALL mpp_lbc_north( pt2d, cd_type, psgn ) ! for all northern procs.
	1019	END SELECT
	1020	!
[473]	1021	ENDIF
[1344]	1022	!
[4152]	1023	DEALLOCATE( zt2ns, zt2sn, zt2ew, zt2we )
	1024	!
[51]	1025	END SUBROUTINE mpp_lnk_2d
[3]	1026
	1027
[473]	1028	SUBROUTINE mpp_lnk_3d_gather( ptab1, cd_type1, ptab2, cd_type2, psgn )
	1029	!!----------------------------------------------------------------------
	1030	!! * routine mpp_lnk_3d_gather *
	1031	!!
	1032	!! ** Purpose : Message passing manadgement for two 3D arrays
	1033	!!
[3764]	1034	!! ** Method : Use mppsend and mpprecv function for passing mask
[473]	1035	!! between processors following neighboring subdomains.
	1036	!! domain parameters
	1037	!! nlci : first dimension of the local subdomain
	1038	!! nlcj : second dimension of the local subdomain
	1039	!! nbondi : mark for "east-west local boundary"
	1040	!! nbondj : mark for "north-south local boundary"
[3764]	1041	!! noea : number for local neighboring processors
[473]	1042	!! nowe : number for local neighboring processors
	1043	!! noso : number for local neighboring processors
	1044	!! nono : number for local neighboring processors
	1045	!!
	1046	!! ** Action : ptab1 and ptab2 with update value at its periphery
	1047	!!
	1048	!!----------------------------------------------------------------------
[3764]	1049	REAL(wp), DIMENSION(jpi,jpj,jpk), INTENT(inout) :: ptab1 ! first and second 3D array on which
[1344]	1050	REAL(wp), DIMENSION(jpi,jpj,jpk), INTENT(inout) :: ptab2 ! the boundary condition is applied
[3764]	1051	CHARACTER(len=1) , INTENT(in ) :: cd_type1 ! nature of ptab1 and ptab2 arrays
[1344]	1052	CHARACTER(len=1) , INTENT(in ) :: cd_type2 ! i.e. grid-points = T , U , V , F or W points
	1053	REAL(wp) , INTENT(in ) :: psgn ! =-1 the sign change across the north fold boundary
	1054	!! ! = 1. , the sign is kept
	1055	INTEGER :: jl ! dummy loop indices
	1056	INTEGER :: imigr, iihom, ijhom ! temporary integers
	1057	INTEGER :: ml_req1, ml_req2, ml_err ! for key_mpi_isend
	1058	INTEGER, DIMENSION(MPI_STATUS_SIZE) :: ml_stat ! for key_mpi_isend
[4152]	1059	!
	1060	REAL(wp), DIMENSION(:,:,:,:,:), ALLOCATABLE :: zt4ns, zt4sn ! 2 x 3d for north-south & south-north
	1061	REAL(wp), DIMENSION(:,:,:,:,:), ALLOCATABLE :: zt4ew, zt4we ! 2 x 3d for east-west & west-east
	1062
[473]	1063	!!----------------------------------------------------------------------
[4152]	1064	ALLOCATE( zt4ns(jpi,jprecj,jpk,2,2), zt4sn(jpi,jprecj,jpk,2,2) , &
	1065	& zt4ew(jpj,jpreci,jpk,2,2), zt4we(jpj,jpreci,jpk,2,2) )
[473]	1066
[4152]	1067
[473]	1068	! 1. standard boundary treatment
	1069	! ------------------------------
[1344]	1070	! ! East-West boundaries
	1071	! !* Cyclic east-west
	1072	IF( nbondi == 2 .AND. (nperio == 1 .OR. nperio == 4 .OR. nperio == 6) ) THEN
[473]	1073	ptab1( 1 ,:,:) = ptab1(jpim1,:,:)
	1074	ptab1(jpi,:,:) = ptab1( 2 ,:,:)
	1075	ptab2( 1 ,:,:) = ptab2(jpim1,:,:)
	1076	ptab2(jpi,:,:) = ptab2( 2 ,:,:)
[1344]	1077	ELSE !* closed
	1078	IF( .NOT. cd_type1 == 'F' ) ptab1( 1 :jpreci,:,:) = 0.e0 ! south except at F-point
	1079	IF( .NOT. cd_type2 == 'F' ) ptab2( 1 :jpreci,:,:) = 0.e0
	1080	ptab1(nlci-jpreci+1:jpi ,:,:) = 0.e0 ! north
	1081	ptab2(nlci-jpreci+1:jpi ,:,:) = 0.e0
[473]	1082	ENDIF
	1083
[3764]	1084
[1344]	1085	! ! North-South boundaries
	1086	IF( .NOT. cd_type1 == 'F' ) ptab1(:, 1 :jprecj,:) = 0.e0 ! south except at F-point
	1087	IF( .NOT. cd_type2 == 'F' ) ptab2(:, 1 :jprecj,:) = 0.e0
	1088	ptab1(:,nlcj-jprecj+1:jpj ,:) = 0.e0 ! north
	1089	ptab2(:,nlcj-jprecj+1:jpj ,:) = 0.e0
[473]	1090
	1091
	1092	! 2. East and west directions exchange
	1093	! ------------------------------------
[3764]	1094	! we play with the neigbours AND the row number because of the periodicity
[1344]	1095	!
	1096	SELECT CASE ( nbondi ) ! Read Dirichlet lateral conditions
	1097	CASE ( -1, 0, 1 ) ! all exept 2 (i.e. close case)
[473]	1098	iihom = nlci-nreci
	1099	DO jl = 1, jpreci
[4152]	1100	zt4ew(:,jl,:,1,1) = ptab1(jpreci+jl,:,:)
	1101	zt4we(:,jl,:,1,1) = ptab1(iihom +jl,:,:)
	1102	zt4ew(:,jl,:,2,1) = ptab2(jpreci+jl,:,:)
	1103	zt4we(:,jl,:,2,1) = ptab2(iihom +jl,:,:)
[473]	1104	END DO
	1105	END SELECT
[1344]	1106	!
	1107	! ! Migrations
[473]	1108	imigr = jpreci * jpj * jpk *2
[1344]	1109	!
[3764]	1110	SELECT CASE ( nbondi )
[473]	1111	CASE ( -1 )
[4152]	1112	CALL mppsend( 2, zt4we(1,1,1,1,1), imigr, noea, ml_req1 )
	1113	CALL mpprecv( 1, zt4ew(1,1,1,1,2), imigr, noea )
[473]	1114	IF(l_isend) CALL mpi_wait(ml_req1, ml_stat, ml_err)
	1115	CASE ( 0 )
[4152]	1116	CALL mppsend( 1, zt4ew(1,1,1,1,1), imigr, nowe, ml_req1 )
	1117	CALL mppsend( 2, zt4we(1,1,1,1,1), imigr, noea, ml_req2 )
	1118	CALL mpprecv( 1, zt4ew(1,1,1,1,2), imigr, noea )
	1119	CALL mpprecv( 2, zt4we(1,1,1,1,2), imigr, nowe )
[473]	1120	IF(l_isend) CALL mpi_wait(ml_req1, ml_stat, ml_err)
	1121	IF(l_isend) CALL mpi_wait(ml_req2, ml_stat, ml_err)
	1122	CASE ( 1 )
[4152]	1123	CALL mppsend( 1, zt4ew(1,1,1,1,1), imigr, nowe, ml_req1 )
	1124	CALL mpprecv( 2, zt4we(1,1,1,1,2), imigr, nowe )
[473]	1125	IF(l_isend) CALL mpi_wait(ml_req1, ml_stat, ml_err)
	1126	END SELECT
[1344]	1127	!
	1128	! ! Write Dirichlet lateral conditions
	1129	iihom = nlci - jpreci
	1130	!
[473]	1131	SELECT CASE ( nbondi )
	1132	CASE ( -1 )
	1133	DO jl = 1, jpreci
[4152]	1134	ptab1(iihom+jl,:,:) = zt4ew(:,jl,:,1,2)
	1135	ptab2(iihom+jl,:,:) = zt4ew(:,jl,:,2,2)
[473]	1136	END DO
[3764]	1137	CASE ( 0 )
[473]	1138	DO jl = 1, jpreci
[4152]	1139	ptab1(jl ,:,:) = zt4we(:,jl,:,1,2)
	1140	ptab1(iihom+jl,:,:) = zt4ew(:,jl,:,1,2)
	1141	ptab2(jl ,:,:) = zt4we(:,jl,:,2,2)
	1142	ptab2(iihom+jl,:,:) = zt4ew(:,jl,:,2,2)
[473]	1143	END DO
	1144	CASE ( 1 )
	1145	DO jl = 1, jpreci
[4152]	1146	ptab1(jl ,:,:) = zt4we(:,jl,:,1,2)
	1147	ptab2(jl ,:,:) = zt4we(:,jl,:,2,2)
[473]	1148	END DO
	1149	END SELECT
	1150
	1151
	1152	! 3. North and south directions
	1153	! -----------------------------
[1344]	1154	! always closed : we play only with the neigbours
	1155	!
	1156	IF( nbondj /= 2 ) THEN ! Read Dirichlet lateral conditions
	1157	ijhom = nlcj - nrecj
[473]	1158	DO jl = 1, jprecj
[4152]	1159	zt4sn(:,jl,:,1,1) = ptab1(:,ijhom +jl,:)
	1160	zt4ns(:,jl,:,1,1) = ptab1(:,jprecj+jl,:)
	1161	zt4sn(:,jl,:,2,1) = ptab2(:,ijhom +jl,:)
	1162	zt4ns(:,jl,:,2,1) = ptab2(:,jprecj+jl,:)
[473]	1163	END DO
	1164	ENDIF
[1344]	1165	!
	1166	! ! Migrations
[473]	1167	imigr = jprecj * jpi * jpk * 2
[1344]	1168	!
[3764]	1169	SELECT CASE ( nbondj )
[473]	1170	CASE ( -1 )
[4152]	1171	CALL mppsend( 4, zt4sn(1,1,1,1,1), imigr, nono, ml_req1 )
	1172	CALL mpprecv( 3, zt4ns(1,1,1,1,2), imigr, nono )
[473]	1173	IF(l_isend) CALL mpi_wait(ml_req1, ml_stat, ml_err)
	1174	CASE ( 0 )
[4152]	1175	CALL mppsend( 3, zt4ns(1,1,1,1,1), imigr, noso, ml_req1 )
	1176	CALL mppsend( 4, zt4sn(1,1,1,1,1), imigr, nono, ml_req2 )
	1177	CALL mpprecv( 3, zt4ns(1,1,1,1,2), imigr, nono )
	1178	CALL mpprecv( 4, zt4sn(1,1,1,1,2), imigr, noso )
[473]	1179	IF(l_isend) CALL mpi_wait(ml_req1, ml_stat, ml_err)
	1180	IF(l_isend) CALL mpi_wait(ml_req2, ml_stat, ml_err)
[3764]	1181	CASE ( 1 )
[4152]	1182	CALL mppsend( 3, zt4ns(1,1,1,1,1), imigr, noso, ml_req1 )
	1183	CALL mpprecv( 4, zt4sn(1,1,1,1,2), imigr, noso )
[473]	1184	IF(l_isend) CALL mpi_wait(ml_req1, ml_stat, ml_err)
	1185	END SELECT
[1344]	1186	!
	1187	! ! Write Dirichlet lateral conditions
	1188	ijhom = nlcj - jprecj
	1189	!
[473]	1190	SELECT CASE ( nbondj )
	1191	CASE ( -1 )
	1192	DO jl = 1, jprecj
[4152]	1193	ptab1(:,ijhom+jl,:) = zt4ns(:,jl,:,1,2)
	1194	ptab2(:,ijhom+jl,:) = zt4ns(:,jl,:,2,2)
[473]	1195	END DO
[3764]	1196	CASE ( 0 )
[473]	1197	DO jl = 1, jprecj
[4152]	1198	ptab1(:,jl ,:) = zt4sn(:,jl,:,1,2)
	1199	ptab1(:,ijhom+jl,:) = zt4ns(:,jl,:,1,2)
	1200	ptab2(:,jl ,:) = zt4sn(:,jl,:,2,2)
	1201	ptab2(:,ijhom+jl,:) = zt4ns(:,jl,:,2,2)
[473]	1202	END DO
	1203	CASE ( 1 )
	1204	DO jl = 1, jprecj
[4152]	1205	ptab1(:,jl,:) = zt4sn(:,jl,:,1,2)
	1206	ptab2(:,jl,:) = zt4sn(:,jl,:,2,2)
[473]	1207	END DO
	1208	END SELECT
	1209
	1210
	1211	! 4. north fold treatment
	1212	! -----------------------
[1344]	1213	IF( npolj /= 0 ) THEN
	1214	!
	1215	SELECT CASE ( jpni )
[3764]	1216	CASE ( 1 )
[1344]	1217	CALL lbc_nfd ( ptab1, cd_type1, psgn ) ! only for northern procs.
	1218	CALL lbc_nfd ( ptab2, cd_type2, psgn )
	1219	CASE DEFAULT
	1220	CALL mpp_lbc_north( ptab1, cd_type1, psgn ) ! for all northern procs.
	1221	CALL mpp_lbc_north (ptab2, cd_type2, psgn)
[3764]	1222	END SELECT
[1344]	1223	!
	1224	ENDIF
	1225	!
[4152]	1226	DEALLOCATE( zt4ns, zt4sn, zt4ew, zt4we )
	1227	!
[473]	1228	END SUBROUTINE mpp_lnk_3d_gather
	1229
	1230
[3609]	1231	SUBROUTINE mpp_lnk_2d_e( pt2d, cd_type, psgn, jpri, jprj )
[311]	1232	!!----------------------------------------------------------------------
	1233	!! * routine mpp_lnk_2d_e *
[3764]	1234	!!
[311]	1235	!! ** Purpose : Message passing manadgement for 2d array (with halo)
	1236	!!
[3764]	1237	!! ** Method : Use mppsend and mpprecv function for passing mask
[311]	1238	!! between processors following neighboring subdomains.
	1239	!! domain parameters
	1240	!! nlci : first dimension of the local subdomain
	1241	!! nlcj : second dimension of the local subdomain
[3609]	1242	!! jpri : number of rows for extra outer halo
	1243	!! jprj : number of columns for extra outer halo
[311]	1244	!! nbondi : mark for "east-west local boundary"
	1245	!! nbondj : mark for "north-south local boundary"
[3764]	1246	!! noea : number for local neighboring processors
[311]	1247	!! nowe : number for local neighboring processors
	1248	!! noso : number for local neighboring processors
	1249	!! nono : number for local neighboring processors
	1250	!!
	1251	!!----------------------------------------------------------------------
[3609]	1252	INTEGER , INTENT(in ) :: jpri
	1253	INTEGER , INTENT(in ) :: jprj
	1254	REAL(wp), DIMENSION(1-jpri:jpi+jpri,1-jprj:jpj+jprj), INTENT(inout) :: pt2d ! 2D array with extra halo
	1255	CHARACTER(len=1) , INTENT(in ) :: cd_type ! nature of ptab array grid-points
	1256	! ! = T , U , V , F , W and I points
	1257	REAL(wp) , INTENT(in ) :: psgn ! =-1 the sign change across the
	1258	!! ! north boundary, = 1. otherwise
[1344]	1259	INTEGER :: jl ! dummy loop indices
	1260	INTEGER :: imigr, iihom, ijhom ! temporary integers
	1261	INTEGER :: ipreci, iprecj ! temporary integers
	1262	INTEGER :: ml_req1, ml_req2, ml_err ! for key_mpi_isend
	1263	INTEGER, DIMENSION(MPI_STATUS_SIZE) :: ml_stat ! for key_mpi_isend
[3609]	1264	!!
	1265	REAL(wp), DIMENSION(1-jpri:jpi+jpri,jprecj+jprj,2) :: r2dns
	1266	REAL(wp), DIMENSION(1-jpri:jpi+jpri,jprecj+jprj,2) :: r2dsn
	1267	REAL(wp), DIMENSION(1-jprj:jpj+jprj,jpreci+jpri,2) :: r2dwe
	1268	REAL(wp), DIMENSION(1-jprj:jpj+jprj,jpreci+jpri,2) :: r2dew
[1344]	1269	!!----------------------------------------------------------------------
[311]	1270
[3609]	1271	ipreci = jpreci + jpri ! take into account outer extra 2D overlap area
	1272	iprecj = jprecj + jprj
[311]	1273
	1274
	1275	! 1. standard boundary treatment
	1276	! ------------------------------
[1344]	1277	! Order matters Here !!!!
	1278	!
	1279	! !* North-South boundaries (always colsed)
[3609]	1280	IF( .NOT. cd_type == 'F' ) pt2d(:, 1-jprj : jprecj ) = 0.e0 ! south except at F-point
	1281	pt2d(:,nlcj-jprecj+1:jpj+jprj) = 0.e0 ! north
[3764]	1282
[1344]	1283	! ! East-West boundaries
	1284	! !* Cyclic east-west
	1285	IF( nbondi == 2 .AND. (nperio == 1 .OR. nperio == 4 .OR. nperio == 6) ) THEN
[3609]	1286	pt2d(1-jpri: 1 ,:) = pt2d(jpim1-jpri: jpim1 ,:) ! east
	1287	pt2d( jpi :jpi+jpri,:) = pt2d( 2 :2+jpri,:) ! west
[1344]	1288	!
	1289	ELSE !* closed
[3609]	1290	IF( .NOT. cd_type == 'F' ) pt2d( 1-jpri :jpreci ,:) = 0.e0 ! south except at F-point
	1291	pt2d(nlci-jpreci+1:jpi+jpri,:) = 0.e0 ! north
[1344]	1292	ENDIF
	1293	!
[311]	1294
[1344]	1295	! north fold treatment
	1296	! -----------------------
	1297	IF( npolj /= 0 ) THEN
	1298	!
	1299	SELECT CASE ( jpni )
[3609]	1300	CASE ( 1 ) ; CALL lbc_nfd ( pt2d(1:jpi,1:jpj+jprj), cd_type, psgn, pr2dj=jprj )
[1344]	1301	CASE DEFAULT ; CALL mpp_lbc_north_e( pt2d , cd_type, psgn )
[3764]	1302	END SELECT
[1344]	1303	!
[311]	1304	ENDIF
	1305
[1344]	1306	! 2. East and west directions exchange
	1307	! ------------------------------------
[3764]	1308	! we play with the neigbours AND the row number because of the periodicity
[1344]	1309	!
	1310	SELECT CASE ( nbondi ) ! Read Dirichlet lateral conditions
	1311	CASE ( -1, 0, 1 ) ! all exept 2 (i.e. close case)
[3609]	1312	iihom = nlci-nreci-jpri
[311]	1313	DO jl = 1, ipreci
[3609]	1314	r2dew(:,jl,1) = pt2d(jpreci+jl,:)
	1315	r2dwe(:,jl,1) = pt2d(iihom +jl,:)
[311]	1316	END DO
	1317	END SELECT
[1344]	1318	!
	1319	! ! Migrations
[3609]	1320	imigr = ipreci * ( jpj + 2*jprj)
[1344]	1321	!
[311]	1322	SELECT CASE ( nbondi )
	1323	CASE ( -1 )
[3609]	1324	CALL mppsend( 2, r2dwe(1-jprj,1,1), imigr, noea, ml_req1 )
	1325	CALL mpprecv( 1, r2dew(1-jprj,1,2), imigr, noea )
[311]	1326	IF(l_isend) CALL mpi_wait(ml_req1,ml_stat,ml_err)
	1327	CASE ( 0 )
[3609]	1328	CALL mppsend( 1, r2dew(1-jprj,1,1), imigr, nowe, ml_req1 )
	1329	CALL mppsend( 2, r2dwe(1-jprj,1,1), imigr, noea, ml_req2 )
	1330	CALL mpprecv( 1, r2dew(1-jprj,1,2), imigr, noea )
	1331	CALL mpprecv( 2, r2dwe(1-jprj,1,2), imigr, nowe )
[311]	1332	IF(l_isend) CALL mpi_wait(ml_req1,ml_stat,ml_err)
	1333	IF(l_isend) CALL mpi_wait(ml_req2,ml_stat,ml_err)
	1334	CASE ( 1 )
[3609]	1335	CALL mppsend( 1, r2dew(1-jprj,1,1), imigr, nowe, ml_req1 )
	1336	CALL mpprecv( 2, r2dwe(1-jprj,1,2), imigr, nowe )
[311]	1337	IF(l_isend) CALL mpi_wait(ml_req1,ml_stat,ml_err)
	1338	END SELECT
[1344]	1339	!
	1340	! ! Write Dirichlet lateral conditions
[311]	1341	iihom = nlci - jpreci
[1344]	1342	!
[311]	1343	SELECT CASE ( nbondi )
	1344	CASE ( -1 )
	1345	DO jl = 1, ipreci
[3609]	1346	pt2d(iihom+jl,:) = r2dew(:,jl,2)
[311]	1347	END DO
	1348	CASE ( 0 )
	1349	DO jl = 1, ipreci
[3609]	1350	pt2d(jl-jpri,:) = r2dwe(:,jl,2)
	1351	pt2d( iihom+jl,:) = r2dew(:,jl,2)
[311]	1352	END DO
	1353	CASE ( 1 )
	1354	DO jl = 1, ipreci
[3609]	1355	pt2d(jl-jpri,:) = r2dwe(:,jl,2)
[311]	1356	END DO
	1357	END SELECT
	1358
	1359
	1360	! 3. North and south directions
	1361	! -----------------------------
[1344]	1362	! always closed : we play only with the neigbours
	1363	!
	1364	IF( nbondj /= 2 ) THEN ! Read Dirichlet lateral conditions
[3609]	1365	ijhom = nlcj-nrecj-jprj
[311]	1366	DO jl = 1, iprecj
[3609]	1367	r2dsn(:,jl,1) = pt2d(:,ijhom +jl)
	1368	r2dns(:,jl,1) = pt2d(:,jprecj+jl)
[311]	1369	END DO
	1370	ENDIF
[1344]	1371	!
	1372	! ! Migrations
[3609]	1373	imigr = iprecj * ( jpi + 2*jpri )
[1344]	1374	!
[311]	1375	SELECT CASE ( nbondj )
	1376	CASE ( -1 )
[3609]	1377	CALL mppsend( 4, r2dsn(1-jpri,1,1), imigr, nono, ml_req1 )
	1378	CALL mpprecv( 3, r2dns(1-jpri,1,2), imigr, nono )
[311]	1379	IF(l_isend) CALL mpi_wait(ml_req1,ml_stat,ml_err)
	1380	CASE ( 0 )
[3609]	1381	CALL mppsend( 3, r2dns(1-jpri,1,1), imigr, noso, ml_req1 )
	1382	CALL mppsend( 4, r2dsn(1-jpri,1,1), imigr, nono, ml_req2 )
	1383	CALL mpprecv( 3, r2dns(1-jpri,1,2), imigr, nono )
	1384	CALL mpprecv( 4, r2dsn(1-jpri,1,2), imigr, noso )
[311]	1385	IF(l_isend) CALL mpi_wait(ml_req1,ml_stat,ml_err)
	1386	IF(l_isend) CALL mpi_wait(ml_req2,ml_stat,ml_err)
	1387	CASE ( 1 )
[3609]	1388	CALL mppsend( 3, r2dns(1-jpri,1,1), imigr, noso, ml_req1 )
	1389	CALL mpprecv( 4, r2dsn(1-jpri,1,2), imigr, noso )
[311]	1390	IF(l_isend) CALL mpi_wait(ml_req1,ml_stat,ml_err)
	1391	END SELECT
[1344]	1392	!
	1393	! ! Write Dirichlet lateral conditions
[3764]	1394	ijhom = nlcj - jprecj
[1344]	1395	!
[311]	1396	SELECT CASE ( nbondj )
	1397	CASE ( -1 )
	1398	DO jl = 1, iprecj
[3609]	1399	pt2d(:,ijhom+jl) = r2dns(:,jl,2)
[311]	1400	END DO
	1401	CASE ( 0 )
	1402	DO jl = 1, iprecj
[3609]	1403	pt2d(:,jl-jprj) = r2dsn(:,jl,2)
	1404	pt2d(:,ijhom+jl ) = r2dns(:,jl,2)
[311]	1405	END DO
[3764]	1406	CASE ( 1 )
[311]	1407	DO jl = 1, iprecj
[3609]	1408	pt2d(:,jl-jprj) = r2dsn(:,jl,2)
[311]	1409	END DO
[1344]	1410	END SELECT
[311]	1411
	1412	END SUBROUTINE mpp_lnk_2d_e
	1413
	1414
[1344]	1415	SUBROUTINE mppsend( ktyp, pmess, kbytes, kdest, md_req )
[51]	1416	!!----------------------------------------------------------------------
	1417	!! * routine mppsend *
[3764]	1418	!!
[51]	1419	!! ** Purpose : Send messag passing array
	1420	!!
	1421	!!----------------------------------------------------------------------
[1344]	1422	REAL(wp), INTENT(inout) :: pmess(*) ! array of real
	1423	INTEGER , INTENT(in ) :: kbytes ! size of the array pmess
	1424	INTEGER , INTENT(in ) :: kdest ! receive process number
	1425	INTEGER , INTENT(in ) :: ktyp ! tag of the message
	1426	INTEGER , INTENT(in ) :: md_req ! argument for isend
	1427	!!
	1428	INTEGER :: iflag
[51]	1429	!!----------------------------------------------------------------------
[1344]	1430	!
[1601]	1431	SELECT CASE ( cn_mpi_send )
[300]	1432	CASE ( 'S' ) ! Standard mpi send (blocking)
[1344]	1433	CALL mpi_send ( pmess, kbytes, mpi_double_precision, kdest , ktyp, mpi_comm_opa , iflag )
[300]	1434	CASE ( 'B' ) ! Buffer mpi send (blocking)
[1344]	1435	CALL mpi_bsend( pmess, kbytes, mpi_double_precision, kdest , ktyp, mpi_comm_opa , iflag )
[300]	1436	CASE ( 'I' ) ! Immediate mpi send (non-blocking send)
[1344]	1437	! be carefull, one more argument here : the mpi request identifier..
	1438	CALL mpi_isend( pmess, kbytes, mpi_double_precision, kdest , ktyp, mpi_comm_opa, md_req, iflag )
[300]	1439	END SELECT
[1344]	1440	!
[51]	1441	END SUBROUTINE mppsend
[3]	1442
	1443
[3294]	1444	SUBROUTINE mpprecv( ktyp, pmess, kbytes, ksource )
[51]	1445	!!----------------------------------------------------------------------
	1446	!! * routine mpprecv *
	1447	!!
	1448	!! ** Purpose : Receive messag passing array
	1449	!!
	1450	!!----------------------------------------------------------------------
[1344]	1451	REAL(wp), INTENT(inout) :: pmess(*) ! array of real
	1452	INTEGER , INTENT(in ) :: kbytes ! suze of the array pmess
	1453	INTEGER , INTENT(in ) :: ktyp ! Tag of the recevied message
[3764]	1454	INTEGER, OPTIONAL, INTENT(in) :: ksource ! source process number
[1344]	1455	!!
[51]	1456	INTEGER :: istatus(mpi_status_size)
	1457	INTEGER :: iflag
[3294]	1458	INTEGER :: use_source
[1344]	1459	!!----------------------------------------------------------------------
	1460	!
[3294]	1461
[3764]	1462	! If a specific process number has been passed to the receive call,
[3294]	1463	! use that one. Default is to use mpi_any_source
	1464	use_source=mpi_any_source
	1465	if(present(ksource)) then
	1466	use_source=ksource
	1467	end if
	1468
	1469	CALL mpi_recv( pmess, kbytes, mpi_double_precision, use_source, ktyp, mpi_comm_opa, istatus, iflag )
[1344]	1470	!
[51]	1471	END SUBROUTINE mpprecv
[3]	1472
	1473
[51]	1474	SUBROUTINE mppgather( ptab, kp, pio )
	1475	!!----------------------------------------------------------------------
	1476	!! * routine mppgather *
[3764]	1477	!!
	1478	!! ** Purpose : Transfert between a local subdomain array and a work
[51]	1479	!! array which is distributed following the vertical level.
	1480	!!
[1344]	1481	!!----------------------------------------------------------------------
	1482	REAL(wp), DIMENSION(jpi,jpj), INTENT(in ) :: ptab ! subdomain input array
	1483	INTEGER , INTENT(in ) :: kp ! record length
	1484	REAL(wp), DIMENSION(jpi,jpj,jpnij), INTENT( out) :: pio ! subdomain input array
[51]	1485	!!
[1344]	1486	INTEGER :: itaille, ierror ! temporary integer
[51]	1487	!!---------------------------------------------------------------------
[1344]	1488	!
	1489	itaille = jpi * jpj
	1490	CALL mpi_gather( ptab, itaille, mpi_double_precision, pio, itaille , &
[3764]	1491	& mpi_double_precision, kp , mpi_comm_opa, ierror )
[1344]	1492	!
[51]	1493	END SUBROUTINE mppgather
[3]	1494
	1495
[51]	1496	SUBROUTINE mppscatter( pio, kp, ptab )
	1497	!!----------------------------------------------------------------------
	1498	!! * routine mppscatter *
	1499	!!
[3764]	1500	!! ** Purpose : Transfert between awork array which is distributed
[51]	1501	!! following the vertical level and the local subdomain array.
	1502	!!
	1503	!!----------------------------------------------------------------------
	1504	REAL(wp), DIMENSION(jpi,jpj,jpnij) :: pio ! output array
	1505	INTEGER :: kp ! Tag (not used with MPI
	1506	REAL(wp), DIMENSION(jpi,jpj) :: ptab ! subdomain array input
[1344]	1507	!!
	1508	INTEGER :: itaille, ierror ! temporary integer
[51]	1509	!!---------------------------------------------------------------------
[1344]	1510	!
[51]	1511	itaille=jpi*jpj
[1344]	1512	!
	1513	CALL mpi_scatter( pio, itaille, mpi_double_precision, ptab, itaille , &
	1514	& mpi_double_precision, kp , mpi_comm_opa, ierror )
	1515	!
[51]	1516	END SUBROUTINE mppscatter
[3]	1517
	1518
[869]	1519	SUBROUTINE mppmax_a_int( ktab, kdim, kcom )
[681]	1520	!!----------------------------------------------------------------------
	1521	!! * routine mppmax_a_int *
[3764]	1522	!!
[681]	1523	!! ** Purpose : Find maximum value in an integer layout array
	1524	!!
	1525	!!----------------------------------------------------------------------
[1344]	1526	INTEGER , INTENT(in ) :: kdim ! size of array
	1527	INTEGER , INTENT(inout), DIMENSION(kdim) :: ktab ! input array
[3764]	1528	INTEGER , INTENT(in ), OPTIONAL :: kcom !
[1344]	1529	!!
	1530	INTEGER :: ierror, localcomm ! temporary integer
[681]	1531	INTEGER, DIMENSION(kdim) :: iwork
[1344]	1532	!!----------------------------------------------------------------------
	1533	!
[869]	1534	localcomm = mpi_comm_opa
[1344]	1535	IF( PRESENT(kcom) ) localcomm = kcom
	1536	!
	1537	CALL mpi_allreduce( ktab, iwork, kdim, mpi_integer, mpi_max, localcomm, ierror )
	1538	!
[681]	1539	ktab(:) = iwork(:)
[1344]	1540	!
[681]	1541	END SUBROUTINE mppmax_a_int
	1542
	1543
[869]	1544	SUBROUTINE mppmax_int( ktab, kcom )
[681]	1545	!!----------------------------------------------------------------------
	1546	!! * routine mppmax_int *
	1547	!!
[1344]	1548	!! ** Purpose : Find maximum value in an integer layout array
[681]	1549	!!
	1550	!!----------------------------------------------------------------------
[1344]	1551	INTEGER, INTENT(inout) :: ktab ! ???
	1552	INTEGER, INTENT(in ), OPTIONAL :: kcom ! ???
[3764]	1553	!!
[1344]	1554	INTEGER :: ierror, iwork, localcomm ! temporary integer
	1555	!!----------------------------------------------------------------------
	1556	!
[3764]	1557	localcomm = mpi_comm_opa
[1344]	1558	IF( PRESENT(kcom) ) localcomm = kcom
	1559	!
	1560	CALL mpi_allreduce( ktab, iwork, 1, mpi_integer, mpi_max, localcomm, ierror)
	1561	!
[681]	1562	ktab = iwork
[1344]	1563	!
[681]	1564	END SUBROUTINE mppmax_int
	1565
	1566
[869]	1567	SUBROUTINE mppmin_a_int( ktab, kdim, kcom )
[51]	1568	!!----------------------------------------------------------------------
	1569	!! * routine mppmin_a_int *
[3764]	1570	!!
[51]	1571	!! ** Purpose : Find minimum value in an integer layout array
	1572	!!
	1573	!!----------------------------------------------------------------------
	1574	INTEGER , INTENT( in ) :: kdim ! size of array
	1575	INTEGER , INTENT(inout), DIMENSION(kdim) :: ktab ! input array
[888]	1576	INTEGER , INTENT( in ), OPTIONAL :: kcom ! input array
[1344]	1577	!!
	1578	INTEGER :: ierror, localcomm ! temporary integer
[51]	1579	INTEGER, DIMENSION(kdim) :: iwork
[1344]	1580	!!----------------------------------------------------------------------
	1581	!
[869]	1582	localcomm = mpi_comm_opa
[1344]	1583	IF( PRESENT(kcom) ) localcomm = kcom
	1584	!
	1585	CALL mpi_allreduce( ktab, iwork, kdim, mpi_integer, mpi_min, localcomm, ierror )
	1586	!
[51]	1587	ktab(:) = iwork(:)
[1344]	1588	!
[51]	1589	END SUBROUTINE mppmin_a_int
[3]	1590
[13]	1591
[1345]	1592	SUBROUTINE mppmin_int( ktab, kcom )
[51]	1593	!!----------------------------------------------------------------------
	1594	!! * routine mppmin_int *
	1595	!!
[1344]	1596	!! ** Purpose : Find minimum value in an integer layout array
[51]	1597	!!
	1598	!!----------------------------------------------------------------------
	1599	INTEGER, INTENT(inout) :: ktab ! ???
[1345]	1600	INTEGER , INTENT( in ), OPTIONAL :: kcom ! input array
[1344]	1601	!!
[1345]	1602	INTEGER :: ierror, iwork, localcomm
[1344]	1603	!!----------------------------------------------------------------------
	1604	!
[1345]	1605	localcomm = mpi_comm_opa
	1606	IF( PRESENT(kcom) ) localcomm = kcom
[1344]	1607	!
[1345]	1608	CALL mpi_allreduce( ktab, iwork, 1, mpi_integer, mpi_min, localcomm, ierror )
	1609	!
[51]	1610	ktab = iwork
[1344]	1611	!
[51]	1612	END SUBROUTINE mppmin_int
[3]	1613
[13]	1614
[51]	1615	SUBROUTINE mppsum_a_int( ktab, kdim )
	1616	!!----------------------------------------------------------------------
	1617	!! * routine mppsum_a_int *
[3764]	1618	!!
[1344]	1619	!! ** Purpose : Global integer sum, 1D array case
[51]	1620	!!
	1621	!!----------------------------------------------------------------------
[1344]	1622	INTEGER, INTENT(in ) :: kdim ! ???
[51]	1623	INTEGER, INTENT(inout), DIMENSION (kdim) :: ktab ! ???
[1344]	1624	!!
[51]	1625	INTEGER :: ierror
	1626	INTEGER, DIMENSION (kdim) :: iwork
[1344]	1627	!!----------------------------------------------------------------------
	1628	!
	1629	CALL mpi_allreduce( ktab, iwork, kdim, mpi_integer, mpi_sum, mpi_comm_opa, ierror )
	1630	!
[51]	1631	ktab(:) = iwork(:)
[1344]	1632	!
[51]	1633	END SUBROUTINE mppsum_a_int
[3]	1634
[13]	1635
[1344]	1636	SUBROUTINE mppsum_int( ktab )
	1637	!!----------------------------------------------------------------------
	1638	!! * routine mppsum_int *
[3764]	1639	!!
[1344]	1640	!! ** Purpose : Global integer sum
	1641	!!
	1642	!!----------------------------------------------------------------------
	1643	INTEGER, INTENT(inout) :: ktab
[3764]	1644	!!
[1344]	1645	INTEGER :: ierror, iwork
	1646	!!----------------------------------------------------------------------
	1647	!
	1648	CALL mpi_allreduce( ktab, iwork, 1, mpi_integer, mpi_sum, mpi_comm_opa, ierror )
	1649	!
	1650	ktab = iwork
	1651	!
	1652	END SUBROUTINE mppsum_int
[3]	1653
[13]	1654
[1344]	1655	SUBROUTINE mppmax_a_real( ptab, kdim, kcom )
	1656	!!----------------------------------------------------------------------
	1657	!! * routine mppmax_a_real *
[3764]	1658	!!
[1344]	1659	!! ** Purpose : Maximum
	1660	!!
	1661	!!----------------------------------------------------------------------
	1662	INTEGER , INTENT(in ) :: kdim
	1663	REAL(wp), INTENT(inout), DIMENSION(kdim) :: ptab
	1664	INTEGER , INTENT(in ), OPTIONAL :: kcom
	1665	!!
	1666	INTEGER :: ierror, localcomm
	1667	REAL(wp), DIMENSION(kdim) :: zwork
	1668	!!----------------------------------------------------------------------
	1669	!
	1670	localcomm = mpi_comm_opa
	1671	IF( PRESENT(kcom) ) localcomm = kcom
	1672	!
	1673	CALL mpi_allreduce( ptab, zwork, kdim, mpi_double_precision, mpi_max, localcomm, ierror )
	1674	ptab(:) = zwork(:)
	1675	!
	1676	END SUBROUTINE mppmax_a_real
[3]	1677
	1678
[1344]	1679	SUBROUTINE mppmax_real( ptab, kcom )
	1680	!!----------------------------------------------------------------------
	1681	!! * routine mppmax_real *
[3764]	1682	!!
[1344]	1683	!! ** Purpose : Maximum
	1684	!!
	1685	!!----------------------------------------------------------------------
	1686	REAL(wp), INTENT(inout) :: ptab ! ???
	1687	INTEGER , INTENT(in ), OPTIONAL :: kcom ! ???
	1688	!!
	1689	INTEGER :: ierror, localcomm
	1690	REAL(wp) :: zwork
	1691	!!----------------------------------------------------------------------
	1692	!
[3764]	1693	localcomm = mpi_comm_opa
[1344]	1694	IF( PRESENT(kcom) ) localcomm = kcom
	1695	!
	1696	CALL mpi_allreduce( ptab, zwork, 1, mpi_double_precision, mpi_max, localcomm, ierror )
	1697	ptab = zwork
	1698	!
	1699	END SUBROUTINE mppmax_real
[13]	1700
[6476]	1701	SUBROUTINE mppmax_real_multiple( ptab, NUM , kcom )
	1702	!!----------------------------------------------------------------------
	1703	!! * routine mppmax_real *
	1704	!!
	1705	!! ** Purpose : Maximum
	1706	!!
	1707	!!----------------------------------------------------------------------
	1708	REAL(wp), DIMENSION(:) , INTENT(inout) :: ptab ! ???
	1709	INTEGER , INTENT(in ) :: NUM
	1710	INTEGER , INTENT(in ), OPTIONAL :: kcom ! ???
	1711	!!
	1712	INTEGER :: ierror, localcomm
	1713	REAL(wp) , POINTER , DIMENSION(:) :: zwork
	1714	!!----------------------------------------------------------------------
	1715	!
	1716	CALL wrk_alloc(NUM , zwork)
	1717	localcomm = mpi_comm_opa
	1718	IF( PRESENT(kcom) ) localcomm = kcom
	1719	!
	1720	CALL mpi_allreduce( ptab, zwork, NUM, mpi_double_precision, mpi_max, localcomm, ierror )
	1721	ptab = zwork
	1722	CALL wrk_dealloc(NUM , zwork)
	1723	!
	1724	END SUBROUTINE mppmax_real_multiple
[3]	1725
[6476]	1726
[1344]	1727	SUBROUTINE mppmin_a_real( ptab, kdim, kcom )
	1728	!!----------------------------------------------------------------------
	1729	!! * routine mppmin_a_real *
[3764]	1730	!!
[1344]	1731	!! ** Purpose : Minimum of REAL, array case
	1732	!!
	1733	!!-----------------------------------------------------------------------
	1734	INTEGER , INTENT(in ) :: kdim
	1735	REAL(wp), INTENT(inout), DIMENSION(kdim) :: ptab
	1736	INTEGER , INTENT(in ), OPTIONAL :: kcom
	1737	!!
	1738	INTEGER :: ierror, localcomm
	1739	REAL(wp), DIMENSION(kdim) :: zwork
	1740	!!-----------------------------------------------------------------------
	1741	!
[3764]	1742	localcomm = mpi_comm_opa
[1344]	1743	IF( PRESENT(kcom) ) localcomm = kcom
	1744	!
	1745	CALL mpi_allreduce( ptab, zwork, kdim, mpi_double_precision, mpi_min, localcomm, ierror )
	1746	ptab(:) = zwork(:)
	1747	!
	1748	END SUBROUTINE mppmin_a_real
[3]	1749
	1750
[1344]	1751	SUBROUTINE mppmin_real( ptab, kcom )
	1752	!!----------------------------------------------------------------------
	1753	!! * routine mppmin_real *
[3764]	1754	!!
[1344]	1755	!! ** Purpose : minimum of REAL, scalar case
	1756	!!
	1757	!!-----------------------------------------------------------------------
[3764]	1758	REAL(wp), INTENT(inout) :: ptab !
[1344]	1759	INTEGER , INTENT(in ), OPTIONAL :: kcom
	1760	!!
	1761	INTEGER :: ierror
	1762	REAL(wp) :: zwork
	1763	INTEGER :: localcomm
	1764	!!-----------------------------------------------------------------------
	1765	!
[3764]	1766	localcomm = mpi_comm_opa
[1344]	1767	IF( PRESENT(kcom) ) localcomm = kcom
	1768	!
	1769	CALL mpi_allreduce( ptab, zwork, 1, mpi_double_precision, mpi_min, localcomm, ierror )
	1770	ptab = zwork
	1771	!
	1772	END SUBROUTINE mppmin_real
[13]	1773
[3]	1774
[1344]	1775	SUBROUTINE mppsum_a_real( ptab, kdim, kcom )
	1776	!!----------------------------------------------------------------------
	1777	!! * routine mppsum_a_real *
[3764]	1778	!!
[1344]	1779	!! ** Purpose : global sum, REAL ARRAY argument case
	1780	!!
	1781	!!-----------------------------------------------------------------------
	1782	INTEGER , INTENT( in ) :: kdim ! size of ptab
	1783	REAL(wp), DIMENSION(kdim), INTENT( inout ) :: ptab ! input array
	1784	INTEGER , INTENT( in ), OPTIONAL :: kcom
	1785	!!
	1786	INTEGER :: ierror ! temporary integer
[3764]	1787	INTEGER :: localcomm
	1788	REAL(wp), DIMENSION(kdim) :: zwork ! temporary workspace
[1344]	1789	!!-----------------------------------------------------------------------
	1790	!
[3764]	1791	localcomm = mpi_comm_opa
[1344]	1792	IF( PRESENT(kcom) ) localcomm = kcom
	1793	!
	1794	CALL mpi_allreduce( ptab, zwork, kdim, mpi_double_precision, mpi_sum, localcomm, ierror )
	1795	ptab(:) = zwork(:)
	1796	!
	1797	END SUBROUTINE mppsum_a_real
[869]	1798
[3]	1799
[1344]	1800	SUBROUTINE mppsum_real( ptab, kcom )
	1801	!!----------------------------------------------------------------------
	1802	!! * routine mppsum_real *
[3764]	1803	!!
[1344]	1804	!! ** Purpose : global sum, SCALAR argument case
	1805	!!
	1806	!!-----------------------------------------------------------------------
	1807	REAL(wp), INTENT(inout) :: ptab ! input scalar
	1808	INTEGER , INTENT(in ), OPTIONAL :: kcom
	1809	!!
[3764]	1810	INTEGER :: ierror, localcomm
[1344]	1811	REAL(wp) :: zwork
	1812	!!-----------------------------------------------------------------------
	1813	!
[3764]	1814	localcomm = mpi_comm_opa
[1344]	1815	IF( PRESENT(kcom) ) localcomm = kcom
	1816	!
	1817	CALL mpi_allreduce( ptab, zwork, 1, mpi_double_precision, mpi_sum, localcomm, ierror )
	1818	ptab = zwork
	1819	!
	1820	END SUBROUTINE mppsum_real
[3]	1821
[1976]	1822	SUBROUTINE mppsum_realdd( ytab, kcom )
	1823	!!----------------------------------------------------------------------
	1824	!! * routine mppsum_realdd *
	1825	!!
	1826	!! ** Purpose : global sum in Massively Parallel Processing
	1827	!! SCALAR argument case for double-double precision
	1828	!!
	1829	!!-----------------------------------------------------------------------
	1830	COMPLEX(wp), INTENT(inout) :: ytab ! input scalar
	1831	INTEGER , INTENT( in ), OPTIONAL :: kcom
[3]	1832
[1976]	1833	!! * Local variables (MPI version)
	1834	INTEGER :: ierror
	1835	INTEGER :: localcomm
	1836	COMPLEX(wp) :: zwork
	1837
	1838	localcomm = mpi_comm_opa
	1839	IF( PRESENT(kcom) ) localcomm = kcom
	1840
	1841	! reduce local sums into global sum
	1842	CALL MPI_ALLREDUCE (ytab, zwork, 1, MPI_DOUBLE_COMPLEX, &
	1843	MPI_SUMDD,localcomm,ierror)
	1844	ytab = zwork
	1845
	1846	END SUBROUTINE mppsum_realdd
[3764]	1847
	1848
[1976]	1849	SUBROUTINE mppsum_a_realdd( ytab, kdim, kcom )
	1850	!!----------------------------------------------------------------------
	1851	!! * routine mppsum_a_realdd *
	1852	!!
	1853	!! ** Purpose : global sum in Massively Parallel Processing
	1854	!! COMPLEX ARRAY case for double-double precision
	1855	!!
	1856	!!-----------------------------------------------------------------------
	1857	INTEGER , INTENT( in ) :: kdim ! size of ytab
	1858	COMPLEX(wp), DIMENSION(kdim), INTENT( inout ) :: ytab ! input array
	1859	INTEGER , INTENT( in ), OPTIONAL :: kcom
	1860
	1861	!! * Local variables (MPI version)
	1862	INTEGER :: ierror ! temporary integer
	1863	INTEGER :: localcomm
	1864	COMPLEX(wp), DIMENSION(kdim) :: zwork ! temporary workspace
	1865
	1866	localcomm = mpi_comm_opa
	1867	IF( PRESENT(kcom) ) localcomm = kcom
	1868
	1869	CALL MPI_ALLREDUCE (ytab, zwork, kdim, MPI_DOUBLE_COMPLEX, &
	1870	MPI_SUMDD,localcomm,ierror)
	1871	ytab(:) = zwork(:)
	1872
	1873	END SUBROUTINE mppsum_a_realdd
[3764]	1874
[1344]	1875	SUBROUTINE mpp_minloc2d( ptab, pmask, pmin, ki,kj )
	1876	!!------------------------------------------------------------------------
	1877	!! * routine mpp_minloc *
	1878	!!
	1879	!! ** Purpose : Compute the global minimum of an array ptab
	1880	!! and also give its global position
	1881	!!
	1882	!! ** Method : Use MPI_ALLREDUCE with MPI_MINLOC
	1883	!!
	1884	!!--------------------------------------------------------------------------
	1885	REAL(wp), DIMENSION (jpi,jpj), INTENT(in ) :: ptab ! Local 2D array
	1886	REAL(wp), DIMENSION (jpi,jpj), INTENT(in ) :: pmask ! Local mask
	1887	REAL(wp) , INTENT( out) :: pmin ! Global minimum of ptab
	1888	INTEGER , INTENT( out) :: ki, kj ! index of minimum in global frame
	1889	!!
	1890	INTEGER , DIMENSION(2) :: ilocs
	1891	INTEGER :: ierror
	1892	REAL(wp) :: zmin ! local minimum
	1893	REAL(wp), DIMENSION(2,1) :: zain, zaout
	1894	!!-----------------------------------------------------------------------
	1895	!
	1896	zmin = MINVAL( ptab(:,:) , mask= pmask == 1.e0 )
	1897	ilocs = MINLOC( ptab(:,:) , mask= pmask == 1.e0 )
	1898	!
	1899	ki = ilocs(1) + nimpp - 1
	1900	kj = ilocs(2) + njmpp - 1
	1901	!
	1902	zain(1,:)=zmin
	1903	zain(2,:)=ki+10000.*kj
	1904	!
	1905	CALL MPI_ALLREDUCE( zain,zaout, 1, MPI_2DOUBLE_PRECISION,MPI_MINLOC,MPI_COMM_OPA,ierror)
	1906	!
	1907	pmin = zaout(1,1)
	1908	kj = INT(zaout(2,1)/10000.)
	1909	ki = INT(zaout(2,1) - 10000.*kj )
	1910	!
	1911	END SUBROUTINE mpp_minloc2d
[13]	1912
[3]	1913
[1344]	1914	SUBROUTINE mpp_minloc3d( ptab, pmask, pmin, ki, kj ,kk)
	1915	!!------------------------------------------------------------------------
	1916	!! * routine mpp_minloc *
	1917	!!
	1918	!! ** Purpose : Compute the global minimum of an array ptab
	1919	!! and also give its global position
	1920	!!
	1921	!! ** Method : Use MPI_ALLREDUCE with MPI_MINLOC
	1922	!!
	1923	!!--------------------------------------------------------------------------
	1924	REAL(wp), DIMENSION (jpi,jpj,jpk), INTENT(in ) :: ptab ! Local 2D array
	1925	REAL(wp), DIMENSION (jpi,jpj,jpk), INTENT(in ) :: pmask ! Local mask
	1926	REAL(wp) , INTENT( out) :: pmin ! Global minimum of ptab
	1927	INTEGER , INTENT( out) :: ki, kj, kk ! index of minimum in global frame
	1928	!!
	1929	INTEGER :: ierror
	1930	REAL(wp) :: zmin ! local minimum
	1931	INTEGER , DIMENSION(3) :: ilocs
	1932	REAL(wp), DIMENSION(2,1) :: zain, zaout
	1933	!!-----------------------------------------------------------------------
	1934	!
	1935	zmin = MINVAL( ptab(:,:,:) , mask= pmask == 1.e0 )
	1936	ilocs = MINLOC( ptab(:,:,:) , mask= pmask == 1.e0 )
	1937	!
	1938	ki = ilocs(1) + nimpp - 1
	1939	kj = ilocs(2) + njmpp - 1
	1940	kk = ilocs(3)
	1941	!
	1942	zain(1,:)=zmin
	1943	zain(2,:)=ki+10000.kj+100000000.kk
	1944	!
	1945	CALL MPI_ALLREDUCE( zain,zaout, 1, MPI_2DOUBLE_PRECISION,MPI_MINLOC,MPI_COMM_OPA,ierror)
	1946	!
	1947	pmin = zaout(1,1)
	1948	kk = INT( zaout(2,1) / 100000000. )
	1949	kj = INT( zaout(2,1) - kk * 100000000. ) / 10000
	1950	ki = INT( zaout(2,1) - kk * 100000000. -kj * 10000. )
	1951	!
	1952	END SUBROUTINE mpp_minloc3d
[13]	1953
[3]	1954
[1344]	1955	SUBROUTINE mpp_maxloc2d( ptab, pmask, pmax, ki, kj )
	1956	!!------------------------------------------------------------------------
	1957	!! * routine mpp_maxloc *
	1958	!!
	1959	!! ** Purpose : Compute the global maximum of an array ptab
	1960	!! and also give its global position
	1961	!!
	1962	!! ** Method : Use MPI_ALLREDUCE with MPI_MINLOC
	1963	!!
	1964	!!--------------------------------------------------------------------------
	1965	REAL(wp), DIMENSION (jpi,jpj), INTENT(in ) :: ptab ! Local 2D array
	1966	REAL(wp), DIMENSION (jpi,jpj), INTENT(in ) :: pmask ! Local mask
	1967	REAL(wp) , INTENT( out) :: pmax ! Global maximum of ptab
	1968	INTEGER , INTENT( out) :: ki, kj ! index of maximum in global frame
[3764]	1969	!!
[1344]	1970	INTEGER :: ierror
	1971	INTEGER, DIMENSION (2) :: ilocs
	1972	REAL(wp) :: zmax ! local maximum
	1973	REAL(wp), DIMENSION(2,1) :: zain, zaout
	1974	!!-----------------------------------------------------------------------
	1975	!
	1976	zmax = MAXVAL( ptab(:,:) , mask= pmask == 1.e0 )
	1977	ilocs = MAXLOC( ptab(:,:) , mask= pmask == 1.e0 )
	1978	!
	1979	ki = ilocs(1) + nimpp - 1
	1980	kj = ilocs(2) + njmpp - 1
	1981	!
	1982	zain(1,:) = zmax
	1983	zain(2,:) = ki + 10000. * kj
	1984	!
	1985	CALL MPI_ALLREDUCE( zain,zaout, 1, MPI_2DOUBLE_PRECISION,MPI_MAXLOC,MPI_COMM_OPA,ierror)
	1986	!
	1987	pmax = zaout(1,1)
	1988	kj = INT( zaout(2,1) / 10000. )
	1989	ki = INT( zaout(2,1) - 10000.* kj )
	1990	!
	1991	END SUBROUTINE mpp_maxloc2d
[3]	1992
[13]	1993
[1344]	1994	SUBROUTINE mpp_maxloc3d( ptab, pmask, pmax, ki, kj, kk )
	1995	!!------------------------------------------------------------------------
	1996	!! * routine mpp_maxloc *
	1997	!!
	1998	!! ** Purpose : Compute the global maximum of an array ptab
	1999	!! and also give its global position
	2000	!!
	2001	!! ** Method : Use MPI_ALLREDUCE with MPI_MINLOC
	2002	!!
	2003	!!--------------------------------------------------------------------------
	2004	REAL(wp), DIMENSION (jpi,jpj,jpk), INTENT(in ) :: ptab ! Local 2D array
	2005	REAL(wp), DIMENSION (jpi,jpj,jpk), INTENT(in ) :: pmask ! Local mask
	2006	REAL(wp) , INTENT( out) :: pmax ! Global maximum of ptab
	2007	INTEGER , INTENT( out) :: ki, kj, kk ! index of maximum in global frame
[3764]	2008	!!
[1344]	2009	REAL(wp) :: zmax ! local maximum
	2010	REAL(wp), DIMENSION(2,1) :: zain, zaout
	2011	INTEGER , DIMENSION(3) :: ilocs
	2012	INTEGER :: ierror
	2013	!!-----------------------------------------------------------------------
	2014	!
	2015	zmax = MAXVAL( ptab(:,:,:) , mask= pmask == 1.e0 )
	2016	ilocs = MAXLOC( ptab(:,:,:) , mask= pmask == 1.e0 )
	2017	!
	2018	ki = ilocs(1) + nimpp - 1
	2019	kj = ilocs(2) + njmpp - 1
	2020	kk = ilocs(3)
	2021	!
	2022	zain(1,:)=zmax
	2023	zain(2,:)=ki+10000.kj+100000000.kk
	2024	!
	2025	CALL MPI_ALLREDUCE( zain,zaout, 1, MPI_2DOUBLE_PRECISION,MPI_MAXLOC,MPI_COMM_OPA,ierror)
	2026	!
	2027	pmax = zaout(1,1)
	2028	kk = INT( zaout(2,1) / 100000000. )
	2029	kj = INT( zaout(2,1) - kk * 100000000. ) / 10000
	2030	ki = INT( zaout(2,1) - kk * 100000000. -kj * 10000. )
	2031	!
	2032	END SUBROUTINE mpp_maxloc3d
[3]	2033
[869]	2034
[1344]	2035	SUBROUTINE mppsync()
	2036	!!----------------------------------------------------------------------
	2037	!! * routine mppsync *
[3764]	2038	!!
[1344]	2039	!! ** Purpose : Massively parallel processors, synchroneous
	2040	!!
	2041	!!-----------------------------------------------------------------------
	2042	INTEGER :: ierror
	2043	!!-----------------------------------------------------------------------
	2044	!
	2045	CALL mpi_barrier( mpi_comm_opa, ierror )
	2046	!
	2047	END SUBROUTINE mppsync
[3]	2048
	2049
[1344]	2050	SUBROUTINE mppstop
	2051	!!----------------------------------------------------------------------
	2052	!! * routine mppstop *
[3764]	2053	!!
[3294]	2054	!! ** purpose : Stop massively parallel processors method
[1344]	2055	!!
	2056	!!----------------------------------------------------------------------
	2057	INTEGER :: info
	2058	!!----------------------------------------------------------------------
	2059	!
	2060	CALL mppsync
	2061	CALL mpi_finalize( info )
	2062	!
	2063	END SUBROUTINE mppstop
[3]	2064
	2065
[1344]	2066	SUBROUTINE mpp_comm_free( kcom )
	2067	!!----------------------------------------------------------------------
	2068	!!----------------------------------------------------------------------
	2069	INTEGER, INTENT(in) :: kcom
	2070	!!
	2071	INTEGER :: ierr
	2072	!!----------------------------------------------------------------------
	2073	!
	2074	CALL MPI_COMM_FREE(kcom, ierr)
	2075	!
	2076	END SUBROUTINE mpp_comm_free
[3]	2077
[869]	2078
[2715]	2079	SUBROUTINE mpp_ini_ice( pindic, kumout )
[1344]	2080	!!----------------------------------------------------------------------
	2081	!! * routine mpp_ini_ice *
	2082	!!
	2083	!! ** Purpose : Initialize special communicator for ice areas
	2084	!! condition together with global variables needed in the ddmpp folding
	2085	!!
	2086	!! ** Method : - Look for ice processors in ice routines
	2087	!! - Put their number in nrank_ice
	2088	!! - Create groups for the world processors and the ice processors
	2089	!! - Create a communicator for ice processors
	2090	!!
	2091	!! ** output
	2092	!! njmppmax = njmpp for northern procs
	2093	!! ndim_rank_ice = number of processors with ice
	2094	!! nrank_ice (ndim_rank_ice) = ice processors
[3625]	2095	!! ngrp_iworld = group ID for the world processors
[1344]	2096	!! ngrp_ice = group ID for the ice processors
	2097	!! ncomm_ice = communicator for the ice procs.
	2098	!! n_ice_root = number (in the world) of proc 0 in the ice comm.
	2099	!!
	2100	!!----------------------------------------------------------------------
[2715]	2101	INTEGER, INTENT(in) :: pindic
	2102	INTEGER, INTENT(in) :: kumout ! ocean.output logical unit
[1344]	2103	!!
	2104	INTEGER :: jjproc
[2715]	2105	INTEGER :: ii, ierr
	2106	INTEGER, ALLOCATABLE, DIMENSION(:) :: kice
	2107	INTEGER, ALLOCATABLE, DIMENSION(:) :: zwork
[1344]	2108	!!----------------------------------------------------------------------
	2109	!
[2715]	2110	! Since this is just an init routine and these arrays are of length jpnij
	2111	! then don't use wrk_nemo module - just allocate and deallocate.
	2112	ALLOCATE( kice(jpnij), zwork(jpnij), STAT=ierr )
	2113	IF( ierr /= 0 ) THEN
	2114	WRITE(kumout, cform_err)
	2115	WRITE(kumout,*) 'mpp_ini_ice : failed to allocate 2, 1D arrays (jpnij in length)'
	2116	CALL mppstop
	2117	ENDIF
	2118
[1344]	2119	! Look for how many procs with sea-ice
	2120	!
	2121	kice = 0
	2122	DO jjproc = 1, jpnij
[3764]	2123	IF( jjproc == narea .AND. pindic .GT. 0 ) kice(jjproc) = 1
[1344]	2124	END DO
	2125	!
	2126	zwork = 0
	2127	CALL MPI_ALLREDUCE( kice, zwork, jpnij, mpi_integer, mpi_sum, mpi_comm_opa, ierr )
[3764]	2128	ndim_rank_ice = SUM( zwork )
[3]	2129
[1344]	2130	! Allocate the right size to nrank_north
[1441]	2131	IF( ALLOCATED ( nrank_ice ) ) DEALLOCATE( nrank_ice )
[1344]	2132	ALLOCATE( nrank_ice(ndim_rank_ice) )
	2133	!
[3764]	2134	ii = 0
[1344]	2135	nrank_ice = 0
	2136	DO jjproc = 1, jpnij
	2137	IF( zwork(jjproc) == 1) THEN
	2138	ii = ii + 1
[3764]	2139	nrank_ice(ii) = jjproc -1
[1344]	2140	ENDIF
	2141	END DO
[1208]	2142
[1344]	2143	! Create the world group
[3625]	2144	CALL MPI_COMM_GROUP( mpi_comm_opa, ngrp_iworld, ierr )
[869]	2145
[1344]	2146	! Create the ice group from the world group
[3625]	2147	CALL MPI_GROUP_INCL( ngrp_iworld, ndim_rank_ice, nrank_ice, ngrp_ice, ierr )
[869]	2148
[1344]	2149	! Create the ice communicator , ie the pool of procs with sea-ice
	2150	CALL MPI_COMM_CREATE( mpi_comm_opa, ngrp_ice, ncomm_ice, ierr )
[869]	2151
[1344]	2152	! Find proc number in the world of proc 0 in the north
	2153	! The following line seems to be useless, we just comment & keep it as reminder
[3625]	2154	! CALL MPI_GROUP_TRANSLATE_RANKS(ngrp_ice,1,0,ngrp_iworld,n_ice_root,ierr)
[1344]	2155	!
[3625]	2156	CALL MPI_GROUP_FREE(ngrp_ice, ierr)
	2157	CALL MPI_GROUP_FREE(ngrp_iworld, ierr)
	2158
[2715]	2159	DEALLOCATE(kice, zwork)
	2160	!
[1344]	2161	END SUBROUTINE mpp_ini_ice
[869]	2162
	2163
[2715]	2164	SUBROUTINE mpp_ini_znl( kumout )
[1345]	2165	!!----------------------------------------------------------------------
	2166	!! * routine mpp_ini_znl *
	2167	!!
	2168	!! ** Purpose : Initialize special communicator for computing zonal sum
	2169	!!
	2170	!! ** Method : - Look for processors in the same row
	2171	!! - Put their number in nrank_znl
	2172	!! - Create group for the znl processors
	2173	!! - Create a communicator for znl processors
	2174	!! - Determine if processor should write znl files
	2175	!!
	2176	!! ** output
	2177	!! ndim_rank_znl = number of processors on the same row
	2178	!! ngrp_znl = group ID for the znl processors
	2179	!! ncomm_znl = communicator for the ice procs.
	2180	!! n_znl_root = number (in the world) of proc 0 in the ice comm.
	2181	!!
	2182	!!----------------------------------------------------------------------
[2715]	2183	INTEGER, INTENT(in) :: kumout ! ocean.output logical units
[1345]	2184	!
[2715]	2185	INTEGER :: jproc ! dummy loop integer
	2186	INTEGER :: ierr, ii ! local integer
	2187	INTEGER, ALLOCATABLE, DIMENSION(:) :: kwork
	2188	!!----------------------------------------------------------------------
[1345]	2189	!-$$ WRITE (numout,*) 'mpp_ini_znl ', nproc, ' - ngrp_world : ', ngrp_world
	2190	!-$$ WRITE (numout,*) 'mpp_ini_znl ', nproc, ' - mpi_comm_world : ', mpi_comm_world
	2191	!-$$ WRITE (numout,*) 'mpp_ini_znl ', nproc, ' - mpi_comm_opa : ', mpi_comm_opa
	2192	!
[2715]	2193	ALLOCATE( kwork(jpnij), STAT=ierr )
	2194	IF( ierr /= 0 ) THEN
	2195	WRITE(kumout, cform_err)
	2196	WRITE(kumout,*) 'mpp_ini_znl : failed to allocate 1D array of length jpnij'
	2197	CALL mppstop
	2198	ENDIF
	2199
	2200	IF( jpnj == 1 ) THEN
[1345]	2201	ngrp_znl = ngrp_world
	2202	ncomm_znl = mpi_comm_opa
	2203	ELSE
	2204	!
	2205	CALL MPI_ALLGATHER ( njmpp, 1, mpi_integer, kwork, 1, mpi_integer, mpi_comm_opa, ierr )
	2206	!-$$ WRITE (numout,*) 'mpp_ini_znl ', nproc, ' - kwork pour njmpp : ', kwork
	2207	!-$$ CALL flush(numout)
	2208	!
	2209	! Count number of processors on the same row
	2210	ndim_rank_znl = 0
	2211	DO jproc=1,jpnij
	2212	IF ( kwork(jproc) == njmpp ) THEN
	2213	ndim_rank_znl = ndim_rank_znl + 1
	2214	ENDIF
	2215	END DO
	2216	!-$$ WRITE (numout,*) 'mpp_ini_znl ', nproc, ' - ndim_rank_znl : ', ndim_rank_znl
	2217	!-$$ CALL flush(numout)
	2218	! Allocate the right size to nrank_znl
[1441]	2219	IF (ALLOCATED (nrank_znl)) DEALLOCATE(nrank_znl)
[1345]	2220	ALLOCATE(nrank_znl(ndim_rank_znl))
[3764]	2221	ii = 0
[1345]	2222	nrank_znl (:) = 0
	2223	DO jproc=1,jpnij
	2224	IF ( kwork(jproc) == njmpp) THEN
	2225	ii = ii + 1
[3764]	2226	nrank_znl(ii) = jproc -1
[1345]	2227	ENDIF
	2228	END DO
	2229	!-$$ WRITE (numout,*) 'mpp_ini_znl ', nproc, ' - nrank_znl : ', nrank_znl
	2230	!-$$ CALL flush(numout)
	2231
	2232	! Create the opa group
	2233	CALL MPI_COMM_GROUP(mpi_comm_opa,ngrp_opa,ierr)
	2234	!-$$ WRITE (numout,*) 'mpp_ini_znl ', nproc, ' - ngrp_opa : ', ngrp_opa
	2235	!-$$ CALL flush(numout)
	2236
	2237	! Create the znl group from the opa group
	2238	CALL MPI_GROUP_INCL ( ngrp_opa, ndim_rank_znl, nrank_znl, ngrp_znl, ierr )
	2239	!-$$ WRITE (numout,*) 'mpp_ini_znl ', nproc, ' - ngrp_znl ', ngrp_znl
	2240	!-$$ CALL flush(numout)
	2241
	2242	! Create the znl communicator from the opa communicator, ie the pool of procs in the same row
	2243	CALL MPI_COMM_CREATE ( mpi_comm_opa, ngrp_znl, ncomm_znl, ierr )
	2244	!-$$ WRITE (numout,*) 'mpp_ini_znl ', nproc, ' - ncomm_znl ', ncomm_znl
	2245	!-$$ CALL flush(numout)
	2246	!
	2247	END IF
	2248
	2249	! Determines if processor if the first (starting from i=1) on the row
[3764]	2250	IF ( jpni == 1 ) THEN
[1345]	2251	l_znl_root = .TRUE.
	2252	ELSE
	2253	l_znl_root = .FALSE.
	2254	kwork (1) = nimpp
	2255	CALL mpp_min ( kwork(1), kcom = ncomm_znl)
	2256	IF ( nimpp == kwork(1)) l_znl_root = .TRUE.
	2257	END IF
	2258
[2715]	2259	DEALLOCATE(kwork)
	2260
[1345]	2261	END SUBROUTINE mpp_ini_znl
	2262
	2263
[1344]	2264	SUBROUTINE mpp_ini_north
	2265	!!----------------------------------------------------------------------
	2266	!! * routine mpp_ini_north *
	2267	!!
[3764]	2268	!! ** Purpose : Initialize special communicator for north folding
[1344]	2269	!! condition together with global variables needed in the mpp folding
	2270	!!
	2271	!! ** Method : - Look for northern processors
	2272	!! - Put their number in nrank_north
	2273	!! - Create groups for the world processors and the north processors
	2274	!! - Create a communicator for northern processors
	2275	!!
	2276	!! ** output
	2277	!! njmppmax = njmpp for northern procs
	2278	!! ndim_rank_north = number of processors in the northern line
	2279	!! nrank_north (ndim_rank_north) = number of the northern procs.
	2280	!! ngrp_world = group ID for the world processors
	2281	!! ngrp_north = group ID for the northern processors
	2282	!! ncomm_north = communicator for the northern procs.
	2283	!! north_root = number (in the world) of proc 0 in the northern comm.
	2284	!!
	2285	!!----------------------------------------------------------------------
	2286	INTEGER :: ierr
	2287	INTEGER :: jjproc
	2288	INTEGER :: ii, ji
	2289	!!----------------------------------------------------------------------
	2290	!
	2291	njmppmax = MAXVAL( njmppt )
	2292	!
	2293	! Look for how many procs on the northern boundary
	2294	ndim_rank_north = 0
	2295	DO jjproc = 1, jpnij
	2296	IF( njmppt(jjproc) == njmppmax ) ndim_rank_north = ndim_rank_north + 1
	2297	END DO
	2298	!
	2299	! Allocate the right size to nrank_north
[1441]	2300	IF (ALLOCATED (nrank_north)) DEALLOCATE(nrank_north)
[1344]	2301	ALLOCATE( nrank_north(ndim_rank_north) )
[869]	2302
[1344]	2303	! Fill the nrank_north array with proc. number of northern procs.
	2304	! Note : the rank start at 0 in MPI
	2305	ii = 0
	2306	DO ji = 1, jpnij
	2307	IF ( njmppt(ji) == njmppmax ) THEN
	2308	ii=ii+1
	2309	nrank_north(ii)=ji-1
	2310	END IF
	2311	END DO
	2312	!
	2313	! create the world group
	2314	CALL MPI_COMM_GROUP( mpi_comm_opa, ngrp_world, ierr )
	2315	!
	2316	! Create the North group from the world group
	2317	CALL MPI_GROUP_INCL( ngrp_world, ndim_rank_north, nrank_north, ngrp_north, ierr )
	2318	!
	2319	! Create the North communicator , ie the pool of procs in the north group
	2320	CALL MPI_COMM_CREATE( mpi_comm_opa, ngrp_north, ncomm_north, ierr )
	2321	!
	2322	END SUBROUTINE mpp_ini_north
[869]	2323
	2324
[1344]	2325	SUBROUTINE mpp_lbc_north_3d( pt3d, cd_type, psgn )
[51]	2326	!!---------------------------------------------------------------------
	2327	!! * routine mpp_lbc_north_3d *
	2328	!!
[3764]	2329	!! ** Purpose : Ensure proper north fold horizontal bondary condition
[1344]	2330	!! in mpp configuration in case of jpn1 > 1
[51]	2331	!!
[1344]	2332	!! ** Method : North fold condition and mpp with more than one proc
[3764]	2333	!! in i-direction require a specific treatment. We gather
[1344]	2334	!! the 4 northern lines of the global domain on 1 processor
	2335	!! and apply lbc north-fold on this sub array. Then we
	2336	!! scatter the north fold array back to the processors.
[51]	2337	!!
	2338	!!----------------------------------------------------------------------
[1344]	2339	REAL(wp), DIMENSION(jpi,jpj,jpk), INTENT(inout) :: pt3d ! 3D array on which the b.c. is applied
	2340	CHARACTER(len=1) , INTENT(in ) :: cd_type ! nature of pt3d grid-points
	2341	! ! = T , U , V , F or W gridpoints
[4230]	2342	REAL(wp) , INTENT(in ) :: psgn ! = -1. the sign change across the north fold
[1344]	2343	!! ! = 1. , the sign is kept
[4230]	2344	INTEGER :: ji, jj, jr, jk
[1344]	2345	INTEGER :: ierr, itaille, ildi, ilei, iilb
	2346	INTEGER :: ijpj, ijpjm1, ij, iproc
[4230]	2347	INTEGER, DIMENSION (jpmaxngh) :: ml_req_nf !for mpi_isend when avoiding mpi_allgather
[3294]	2348	INTEGER :: ml_err ! for mpi_isend when avoiding mpi_allgather
	2349	INTEGER, DIMENSION(MPI_STATUS_SIZE) :: ml_stat ! for mpi_isend when avoiding mpi_allgather
[4152]	2350	! ! Workspace for message transfers avoiding mpi_allgather
	2351	REAL(wp), DIMENSION(:,:,:) , ALLOCATABLE :: ztab
	2352	REAL(wp), DIMENSION(:,:,:) , ALLOCATABLE :: znorthloc, zfoldwk
	2353	REAL(wp), DIMENSION(:,:,:,:), ALLOCATABLE :: znorthgloio
[4230]	2354	REAL(wp), DIMENSION(:,:,:) , ALLOCATABLE :: ztabl, ztabr
[4152]	2355
[4230]	2356	INTEGER :: istatus(mpi_status_size)
	2357	INTEGER :: iflag
[51]	2358	!!----------------------------------------------------------------------
[3764]	2359	!
[4230]	2360	ALLOCATE( ztab(jpiglo,4,jpk) , znorthloc(jpi,4,jpk), zfoldwk(jpi,4,jpk), znorthgloio(jpi,4,jpk,jpni) )
	2361	ALLOCATE( ztabl(jpi,4,jpk), ztabr(jpi*jpmaxngh, 4, jpk) )
[4152]	2362
[1344]	2363	ijpj = 4
	2364	ijpjm1 = 3
	2365	!
[4671]	2366	znorthloc(:,:,:) = 0
[4230]	2367	DO jk = 1, jpk
	2368	DO jj = nlcj - ijpj +1, nlcj ! put in xnorthloc the last 4 jlines of pt3d
	2369	ij = jj - nlcj + ijpj
	2370	znorthloc(:,ij,jk) = pt3d(:,jj,jk)
	2371	END DO
[1344]	2372	END DO
	2373	!
[4152]	2374	! ! Build in procs of ncomm_north the znorthgloio
[1344]	2375	itaille = jpi * jpk * ijpj
[4230]	2376
[3294]	2377	IF ( l_north_nogather ) THEN
	2378	!
[4230]	2379	ztabr(:,:,:) = 0
[4671]	2380	ztabl(:,:,:) = 0
	2381
[4230]	2382	DO jk = 1, jpk
	2383	DO jj = nlcj-ijpj+1, nlcj ! First put local values into the global array
	2384	ij = jj - nlcj + ijpj
[4671]	2385	DO ji = nfsloop, nfeloop
[4230]	2386	ztabl(ji,ij,jk) = pt3d(ji,jj,jk)
	2387	END DO
	2388	END DO
	2389	END DO
	2390
	2391	DO jr = 1,nsndto
[4671]	2392	IF ((nfipproc(isendto(jr),jpnj) .ne. (narea-1)) .and. (nfipproc(isendto(jr),jpnj) .ne. -1)) THEN
	2393	CALL mppsend( 5, znorthloc, itaille, nfipproc(isendto(jr),jpnj), ml_req_nf(jr) )
	2394	ENDIF
[4230]	2395	END DO
	2396	DO jr = 1,nsndto
[4671]	2397	iproc = nfipproc(isendto(jr),jpnj)
	2398	IF(iproc .ne. -1) THEN
	2399	ilei = nleit (iproc+1)
	2400	ildi = nldit (iproc+1)
	2401	iilb = nfiimpp(isendto(jr),jpnj) - nfiimpp(isendto(1),jpnj)
	2402	ENDIF
	2403	IF((iproc .ne. (narea-1)) .and. (iproc .ne. -1)) THEN
	2404	CALL mpprecv(5, zfoldwk, itaille, iproc)
[4230]	2405	DO jk = 1, jpk
	2406	DO jj = 1, ijpj
[4671]	2407	DO ji = ildi, ilei
[4230]	2408	ztabr(iilb+ji,jj,jk) = zfoldwk(ji,jj,jk)
	2409	END DO
	2410	END DO
	2411	END DO
[4671]	2412	ELSE IF (iproc .eq. (narea-1)) THEN
[4230]	2413	DO jk = 1, jpk
	2414	DO jj = 1, ijpj
[4671]	2415	DO ji = ildi, ilei
[4230]	2416	ztabr(iilb+ji,jj,jk) = pt3d(ji,nlcj-ijpj+jj,jk)
	2417	END DO
	2418	END DO
	2419	END DO
	2420	ENDIF
	2421	END DO
	2422	IF (l_isend) THEN
	2423	DO jr = 1,nsndto
[4765]	2424	IF ((nfipproc(isendto(jr),jpnj) .ne. (narea-1)) .and. (nfipproc(isendto(jr),jpnj) .ne. -1)) THEN
	2425	CALL mpi_wait(ml_req_nf(jr), ml_stat, ml_err)
	2426	ENDIF
[4230]	2427	END DO
	2428	ENDIF
[4232]	2429	CALL mpp_lbc_nfd( ztabl, ztabr, cd_type, psgn ) ! North fold boundary condition
[4230]	2430	DO jk = 1, jpk
	2431	DO jj = nlcj-ijpj+1, nlcj ! Scatter back to pt3d
	2432	ij = jj - nlcj + ijpj
	2433	DO ji= 1, nlci
	2434	pt3d(ji,jj,jk) = ztabl(ji,ij,jk)
	2435	END DO
[1344]	2436	END DO
	2437	END DO
[3294]	2438	!
	2439
[4230]	2440	ELSE
[4152]	2441	CALL MPI_ALLGATHER( znorthloc , itaille, MPI_DOUBLE_PRECISION, &
	2442	& znorthgloio, itaille, MPI_DOUBLE_PRECISION, ncomm_north, ierr )
[3294]	2443	!
[4230]	2444	ztab(:,:,:) = 0.e0
[3294]	2445	DO jr = 1, ndim_rank_north ! recover the global north array
	2446	iproc = nrank_north(jr) + 1
	2447	ildi = nldit (iproc)
	2448	ilei = nleit (iproc)
	2449	iilb = nimppt(iproc)
[4230]	2450	DO jk = 1, jpk
	2451	DO jj = 1, ijpj
	2452	DO ji = ildi, ilei
	2453	ztab(ji+iilb-1,jj,jk) = znorthgloio(ji,jj,jk,jr)
	2454	END DO
[3294]	2455	END DO
	2456	END DO
	2457	END DO
[4230]	2458	CALL lbc_nfd( ztab, cd_type, psgn ) ! North fold boundary condition
	2459	!
	2460	DO jk = 1, jpk
	2461	DO jj = nlcj-ijpj+1, nlcj ! Scatter back to pt3d
	2462	ij = jj - nlcj + ijpj
	2463	DO ji= 1, nlci
	2464	pt3d(ji,jj,jk) = ztab(ji+nimpp-1,ij,jk)
	2465	END DO
	2466	END DO
	2467	END DO
	2468	!
[3294]	2469	ENDIF
[1344]	2470	!
[4152]	2471	! The ztab array has been either:
[3294]	2472	! a. Fully populated by the mpi_allgather operation or
[3764]	2473	! b. Had the active points for this domain and northern neighbours populated
[3294]	2474	! by peer to peer exchanges
[3764]	2475	! Either way the array may be folded by lbc_nfd and the result for the span of
[3294]	2476	! this domain will be identical.
	2477	!
[4152]	2478	DEALLOCATE( ztab, znorthloc, zfoldwk, znorthgloio )
[4230]	2479	DEALLOCATE( ztabl, ztabr )
[4152]	2480	!
[1344]	2481	END SUBROUTINE mpp_lbc_north_3d
[3]	2482
	2483
[1344]	2484	SUBROUTINE mpp_lbc_north_2d( pt2d, cd_type, psgn)
	2485	!!---------------------------------------------------------------------
	2486	!! * routine mpp_lbc_north_2d *
	2487	!!
[3764]	2488	!! ** Purpose : Ensure proper north fold horizontal bondary condition
[1344]	2489	!! in mpp configuration in case of jpn1 > 1 (for 2d array )
	2490	!!
	2491	!! ** Method : North fold condition and mpp with more than one proc
[3764]	2492	!! in i-direction require a specific treatment. We gather
[1344]	2493	!! the 4 northern lines of the global domain on 1 processor
	2494	!! and apply lbc north-fold on this sub array. Then we
	2495	!! scatter the north fold array back to the processors.
	2496	!!
	2497	!!----------------------------------------------------------------------
[4230]	2498	REAL(wp), DIMENSION(jpi,jpj), INTENT(inout) :: pt2d ! 2D array on which the b.c. is applied
	2499	CHARACTER(len=1) , INTENT(in ) :: cd_type ! nature of pt2d grid-points
[1344]	2500	! ! = T , U , V , F or W gridpoints
[4230]	2501	REAL(wp) , INTENT(in ) :: psgn ! = -1. the sign change across the north fold
[1344]	2502	!! ! = 1. , the sign is kept
	2503	INTEGER :: ji, jj, jr
	2504	INTEGER :: ierr, itaille, ildi, ilei, iilb
	2505	INTEGER :: ijpj, ijpjm1, ij, iproc
[4230]	2506	INTEGER, DIMENSION (jpmaxngh) :: ml_req_nf !for mpi_isend when avoiding mpi_allgather
[3294]	2507	INTEGER :: ml_err ! for mpi_isend when avoiding mpi_allgather
	2508	INTEGER, DIMENSION(MPI_STATUS_SIZE):: ml_stat ! for mpi_isend when avoiding mpi_allgather
[4152]	2509	! ! Workspace for message transfers avoiding mpi_allgather
	2510	REAL(wp), DIMENSION(:,:) , ALLOCATABLE :: ztab
	2511	REAL(wp), DIMENSION(:,:) , ALLOCATABLE :: znorthloc, zfoldwk
	2512	REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: znorthgloio
[4230]	2513	REAL(wp), DIMENSION(:,:) , ALLOCATABLE :: ztabl, ztabr
	2514	INTEGER :: istatus(mpi_status_size)
	2515	INTEGER :: iflag
[1344]	2516	!!----------------------------------------------------------------------
	2517	!
[4152]	2518	ALLOCATE( ztab(jpiglo,4), znorthloc(jpi,4), zfoldwk(jpi,4), znorthgloio(jpi,4,jpni) )
[4230]	2519	ALLOCATE( ztabl(jpi,4), ztabr(jpi*jpmaxngh, 4) )
[4152]	2520	!
[1344]	2521	ijpj = 4
	2522	ijpjm1 = 3
	2523	!
[4152]	2524	DO jj = nlcj-ijpj+1, nlcj ! put in znorthloc the last 4 jlines of pt2d
[1344]	2525	ij = jj - nlcj + ijpj
[4152]	2526	znorthloc(:,ij) = pt2d(:,jj)
[1344]	2527	END DO
[3]	2528
[4152]	2529	! ! Build in procs of ncomm_north the znorthgloio
[1344]	2530	itaille = jpi * ijpj
[3294]	2531	IF ( l_north_nogather ) THEN
	2532	!
[4230]	2533	! Avoid the use of mpi_allgather by exchanging only with the processes already identified
[3294]	2534	! (in nemo_northcomms) as being involved in this process' northern boundary exchange
	2535	!
[4230]	2536	ztabr(:,:) = 0
[4671]	2537	ztabl(:,:) = 0
	2538
[3294]	2539	DO jj = nlcj-ijpj+1, nlcj ! First put local values into the global array
	2540	ij = jj - nlcj + ijpj
[4671]	2541	DO ji = nfsloop, nfeloop
[4230]	2542	ztabl(ji,ij) = pt2d(ji,jj)
[13]	2543	END DO
	2544	END DO
[3294]	2545
[4230]	2546	DO jr = 1,nsndto
[4671]	2547	IF ((nfipproc(isendto(jr),jpnj) .ne. (narea-1)) .and. (nfipproc(isendto(jr),jpnj) .ne. -1)) THEN
	2548	CALL mppsend(5, znorthloc, itaille, nfipproc(isendto(jr),jpnj), ml_req_nf(jr))
	2549	ENDIF
[4230]	2550	END DO
	2551	DO jr = 1,nsndto
[4671]	2552	iproc = nfipproc(isendto(jr),jpnj)
	2553	IF(iproc .ne. -1) THEN
	2554	ilei = nleit (iproc+1)
	2555	ildi = nldit (iproc+1)
	2556	iilb = nfiimpp(isendto(jr),jpnj) - nfiimpp(isendto(1),jpnj)
	2557	ENDIF
	2558	IF((iproc .ne. (narea-1)) .and. (iproc .ne. -1)) THEN
	2559	CALL mpprecv(5, zfoldwk, itaille, iproc)
[4230]	2560	DO jj = 1, ijpj
[4671]	2561	DO ji = ildi, ilei
[4230]	2562	ztabr(iilb+ji,jj) = zfoldwk(ji,jj)
	2563	END DO
	2564	END DO
[4671]	2565	ELSE IF (iproc .eq. (narea-1)) THEN
[4230]	2566	DO jj = 1, ijpj
[4671]	2567	DO ji = ildi, ilei
[4230]	2568	ztabr(iilb+ji,jj) = pt2d(ji,nlcj-ijpj+jj)
	2569	END DO
	2570	END DO
	2571	ENDIF
	2572	END DO
	2573	IF (l_isend) THEN
	2574	DO jr = 1,nsndto
[4671]	2575	IF ((nfipproc(isendto(jr),jpnj) .ne. (narea-1)) .and. (nfipproc(isendto(jr),jpnj) .ne. -1)) THEN
	2576	CALL mpi_wait(ml_req_nf(jr), ml_stat, ml_err)
	2577	ENDIF
[4230]	2578	END DO
	2579	ENDIF
	2580	CALL mpp_lbc_nfd( ztabl, ztabr, cd_type, psgn ) ! North fold boundary condition
[3294]	2581	!
[4230]	2582	DO jj = nlcj-ijpj+1, nlcj ! Scatter back to pt2d
	2583	ij = jj - nlcj + ijpj
	2584	DO ji = 1, nlci
	2585	pt2d(ji,jj) = ztabl(ji,ij)
	2586	END DO
	2587	END DO
[3294]	2588	!
[4230]	2589	ELSE
[4152]	2590	CALL MPI_ALLGATHER( znorthloc , itaille, MPI_DOUBLE_PRECISION, &
	2591	& znorthgloio, itaille, MPI_DOUBLE_PRECISION, ncomm_north, ierr )
[3294]	2592	!
[4230]	2593	ztab(:,:) = 0.e0
[3294]	2594	DO jr = 1, ndim_rank_north ! recover the global north array
	2595	iproc = nrank_north(jr) + 1
	2596	ildi = nldit (iproc)
	2597	ilei = nleit (iproc)
	2598	iilb = nimppt(iproc)
	2599	DO jj = 1, ijpj
	2600	DO ji = ildi, ilei
[4152]	2601	ztab(ji+iilb-1,jj) = znorthgloio(ji,jj,jr)
[3294]	2602	END DO
	2603	END DO
	2604	END DO
[4230]	2605	CALL lbc_nfd( ztab, cd_type, psgn ) ! North fold boundary condition
	2606	!
	2607	DO jj = nlcj-ijpj+1, nlcj ! Scatter back to pt2d
	2608	ij = jj - nlcj + ijpj
	2609	DO ji = 1, nlci
	2610	pt2d(ji,jj) = ztab(ji+nimpp-1,ij)
	2611	END DO
	2612	END DO
	2613	!
[3294]	2614	ENDIF
[4152]	2615	DEALLOCATE( ztab, znorthloc, zfoldwk, znorthgloio )
[4230]	2616	DEALLOCATE( ztabl, ztabr )
[4152]	2617	!
[13]	2618	END SUBROUTINE mpp_lbc_north_2d
[3]	2619
[6476]	2620	SUBROUTINE mpp_lbc_north_2d_multiple( pt2d_array, cd_type, psgn, num_fields)
	2621	!!---------------------------------------------------------------------
	2622	!! * routine mpp_lbc_north_2d *
	2623	!!
	2624	!! ** Purpose : Ensure proper north fold horizontal bondary condition
	2625	!! in mpp configuration in case of jpn1 > 1
	2626	!! (for multiple 2d arrays )
	2627	!!
	2628	!! ** Method : North fold condition and mpp with more than one proc
	2629	!! in i-direction require a specific treatment. We gather
	2630	!! the 4 northern lines of the global domain on 1 processor
	2631	!! and apply lbc north-fold on this sub array. Then we
	2632	!! scatter the north fold array back to the processors.
	2633	!!
	2634	!!----------------------------------------------------------------------
	2635	INTEGER , INTENT (in ) :: num_fields ! number of variables contained in pt2d
	2636	TYPE( arrayptr ), DIMENSION(:) :: pt2d_array
	2637	CHARACTER(len=1), DIMENSION(:), INTENT(in ) :: cd_type ! nature of pt2d grid-points
	2638	! ! = T , U , V , F or W gridpoints
	2639	REAL(wp), DIMENSION(:), INTENT(in ) :: psgn ! = -1. the sign change across the north fold
	2640	!! ! = 1. , the sign is kept
	2641	INTEGER :: ji, jj, jr, jk
	2642	INTEGER :: ierr, itaille, ildi, ilei, iilb
	2643	INTEGER :: ijpj, ijpjm1, ij, iproc
	2644	INTEGER, DIMENSION (jpmaxngh) :: ml_req_nf !for mpi_isend when avoiding mpi_allgather
	2645	INTEGER :: ml_err ! for mpi_isend when avoiding mpi_allgather
	2646	INTEGER, DIMENSION(MPI_STATUS_SIZE):: ml_stat ! for mpi_isend when avoiding mpi_allgather
	2647	! ! Workspace for message transfers avoiding mpi_allgather
	2648	REAL(wp), DIMENSION(:,:,:) , ALLOCATABLE :: ztab
	2649	REAL(wp), DIMENSION(:,:,:) , ALLOCATABLE :: znorthloc, zfoldwk
	2650	REAL(wp), DIMENSION(:,:,:,:), ALLOCATABLE :: znorthgloio
	2651	REAL(wp), DIMENSION(:,:,:) , ALLOCATABLE :: ztabl, ztabr
	2652	INTEGER :: istatus(mpi_status_size)
	2653	INTEGER :: iflag
	2654	!!----------------------------------------------------------------------
	2655	!
[6917]	2656	ALLOCATE( ztab(jpiglo,4,num_fields), znorthloc(jpi,4,num_fields), zfoldwk(jpi,4,num_fields), &
	2657	& znorthgloio(jpi,4,num_fields,jpni) ) ! expanded to 3 dimensions
[6476]	2658	ALLOCATE( ztabl(jpi,4,num_fields), ztabr(jpi*jpmaxngh, 4,num_fields) )
	2659	!
	2660	ijpj = 4
	2661	ijpjm1 = 3
	2662	!
	2663
	2664	DO jk = 1, num_fields
	2665	DO jj = nlcj-ijpj+1, nlcj ! put in znorthloc the last 4 jlines of pt2d (for every variable)
	2666	ij = jj - nlcj + ijpj
	2667	znorthloc(:,ij,jk) = pt2d_array(jk)%pt2d(:,jj)
	2668	END DO
	2669	END DO
	2670	! ! Build in procs of ncomm_north the znorthgloio
	2671	itaille = jpi * ijpj
	2672
	2673	IF ( l_north_nogather ) THEN
	2674	!
	2675	! Avoid the use of mpi_allgather by exchanging only with the processes already identified
	2676	! (in nemo_northcomms) as being involved in this process' northern boundary exchange
	2677	!
	2678	ztabr(:,:,:) = 0
	2679	ztabl(:,:,:) = 0
[3]	2680
[6476]	2681	DO jk = 1, num_fields
	2682	DO jj = nlcj-ijpj+1, nlcj ! First put local values into the global array
	2683	ij = jj - nlcj + ijpj
	2684	DO ji = nfsloop, nfeloop
	2685	ztabl(ji,ij,jk) = pt2d_array(jk)%pt2d(ji,jj)
	2686	END DO
	2687	END DO
	2688	END DO
	2689
	2690	DO jr = 1,nsndto
	2691	IF ((nfipproc(isendto(jr),jpnj) .ne. (narea-1)) .and. (nfipproc(isendto(jr),jpnj) .ne. -1)) THEN
	2692	CALL mppsend(5, znorthloc, itaille*num_fields, nfipproc(isendto(jr),jpnj), ml_req_nf(jr)) ! Buffer expanded "num_fields" times
	2693	ENDIF
	2694	END DO
	2695	DO jr = 1,nsndto
	2696	iproc = nfipproc(isendto(jr),jpnj)
	2697	IF(iproc .ne. -1) THEN
	2698	ilei = nleit (iproc+1)
	2699	ildi = nldit (iproc+1)
	2700	iilb = nfiimpp(isendto(jr),jpnj) - nfiimpp(isendto(1),jpnj)
	2701	ENDIF
	2702	IF((iproc .ne. (narea-1)) .and. (iproc .ne. -1)) THEN
	2703	CALL mpprecv(5, zfoldwk, itaille*num_fields, iproc) ! Buffer expanded "num_fields" times
	2704	DO jk = 1 , num_fields
	2705	DO jj = 1, ijpj
	2706	DO ji = ildi, ilei
	2707	ztabr(iilb+ji,jj,jk) = zfoldwk(ji,jj,jk) ! Modified to 3D
	2708	END DO
	2709	END DO
	2710	END DO
	2711	ELSE IF (iproc .eq. (narea-1)) THEN
	2712	DO jk = 1, num_fields
	2713	DO jj = 1, ijpj
	2714	DO ji = ildi, ilei
	2715	ztabr(iilb+ji,jj,jk) = pt2d_array(jk)%pt2d(ji,nlcj-ijpj+jj) ! Modified to 3D
	2716	END DO
	2717	END DO
	2718	END DO
	2719	ENDIF
	2720	END DO
	2721	IF (l_isend) THEN
	2722	DO jr = 1,nsndto
	2723	IF ((nfipproc(isendto(jr),jpnj) .ne. (narea-1)) .and. (nfipproc(isendto(jr),jpnj) .ne. -1)) THEN
	2724	CALL mpi_wait(ml_req_nf(jr), ml_stat, ml_err)
	2725	ENDIF
	2726	END DO
	2727	ENDIF
	2728	!
	2729	DO ji = 1, num_fields ! Loop to manage 3D variables
	2730	CALL mpp_lbc_nfd( ztabl(:,:,ji), ztabr(:,:,ji), cd_type(ji), psgn(ji) ) ! North fold boundary condition
	2731	END DO
	2732	!
	2733	DO jk = 1, num_fields
	2734	DO jj = nlcj-ijpj+1, nlcj ! Scatter back to pt2d
	2735	ij = jj - nlcj + ijpj
	2736	DO ji = 1, nlci
	2737	pt2d_array(jk)%pt2d(ji,jj) = ztabl(ji,ij,jk) ! Modified to 3D
	2738	END DO
	2739	END DO
	2740	END DO
	2741
	2742	!
	2743	ELSE
	2744	!
	2745	CALL MPI_ALLGATHER( znorthloc , itaille*num_fields, MPI_DOUBLE_PRECISION, &
	2746	& znorthgloio, itaille*num_fields, MPI_DOUBLE_PRECISION, ncomm_north, ierr )
	2747	!
	2748	ztab(:,:,:) = 0.e0
	2749	DO jk = 1, num_fields
	2750	DO jr = 1, ndim_rank_north ! recover the global north array
	2751	iproc = nrank_north(jr) + 1
	2752	ildi = nldit (iproc)
	2753	ilei = nleit (iproc)
	2754	iilb = nimppt(iproc)
	2755	DO jj = 1, ijpj
	2756	DO ji = ildi, ilei
	2757	ztab(ji+iilb-1,jj,jk) = znorthgloio(ji,jj,jk,jr)
	2758	END DO
	2759	END DO
	2760	END DO
	2761	END DO
	2762
	2763	DO ji = 1, num_fields
	2764	CALL lbc_nfd( ztab(:,:,ji), cd_type(ji), psgn(ji) ) ! North fold boundary condition
	2765	END DO
	2766	!
	2767	DO jk = 1, num_fields
	2768	DO jj = nlcj-ijpj+1, nlcj ! Scatter back to pt2d
	2769	ij = jj - nlcj + ijpj
	2770	DO ji = 1, nlci
	2771	pt2d_array(jk)%pt2d(ji,jj) = ztab(ji+nimpp-1,ij,jk)
	2772	END DO
	2773	END DO
	2774	END DO
	2775	!
	2776	!
	2777	ENDIF
	2778	DEALLOCATE( ztab, znorthloc, zfoldwk, znorthgloio )
	2779	DEALLOCATE( ztabl, ztabr )
	2780	!
	2781	END SUBROUTINE mpp_lbc_north_2d_multiple
	2782
[1344]	2783	SUBROUTINE mpp_lbc_north_e( pt2d, cd_type, psgn)
	2784	!!---------------------------------------------------------------------
	2785	!! * routine mpp_lbc_north_2d *
	2786	!!
[3764]	2787	!! ** Purpose : Ensure proper north fold horizontal bondary condition
	2788	!! in mpp configuration in case of jpn1 > 1 and for 2d
[1344]	2789	!! array with outer extra halo
	2790	!!
	2791	!! ** Method : North fold condition and mpp with more than one proc
[3764]	2792	!! in i-direction require a specific treatment. We gather
	2793	!! the 4+2*jpr2dj northern lines of the global domain on 1
	2794	!! processor and apply lbc north-fold on this sub array.
[1344]	2795	!! Then we scatter the north fold array back to the processors.
	2796	!!
	2797	!!----------------------------------------------------------------------
	2798	REAL(wp), DIMENSION(1-jpr2di:jpi+jpr2di,1-jpr2dj:jpj+jpr2dj), INTENT(inout) :: pt2d ! 2D array with extra halo
	2799	CHARACTER(len=1) , INTENT(in ) :: cd_type ! nature of pt3d grid-points
	2800	! ! = T , U , V , F or W -points
[3764]	2801	REAL(wp) , INTENT(in ) :: psgn ! = -1. the sign change across the
[1344]	2802	!! ! north fold, = 1. otherwise
	2803	INTEGER :: ji, jj, jr
	2804	INTEGER :: ierr, itaille, ildi, ilei, iilb
	2805	INTEGER :: ijpj, ij, iproc
[4152]	2806	!
	2807	REAL(wp), DIMENSION(:,:) , ALLOCATABLE :: ztab_e, znorthloc_e
	2808	REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: znorthgloio_e
	2809
[1344]	2810	!!----------------------------------------------------------------------
	2811	!
[4152]	2812	ALLOCATE( ztab_e(jpiglo,4+2jpr2dj), znorthloc_e(jpi,4+2jpr2dj), znorthgloio_e(jpi,4+2*jpr2dj,jpni) )
	2813
	2814	!
[1344]	2815	ijpj=4
[4152]	2816	ztab_e(:,:) = 0.e0
[311]	2817
[1344]	2818	ij=0
[4152]	2819	! put in znorthloc_e the last 4 jlines of pt2d
[1344]	2820	DO jj = nlcj - ijpj + 1 - jpr2dj, nlcj +jpr2dj
	2821	ij = ij + 1
	2822	DO ji = 1, jpi
[4152]	2823	znorthloc_e(ji,ij)=pt2d(ji,jj)
[1344]	2824	END DO
	2825	END DO
	2826	!
	2827	itaille = jpi * ( ijpj + 2 * jpr2dj )
[4152]	2828	CALL MPI_ALLGATHER( znorthloc_e(1,1) , itaille, MPI_DOUBLE_PRECISION, &
	2829	& znorthgloio_e(1,1,1), itaille, MPI_DOUBLE_PRECISION, ncomm_north, ierr )
[1344]	2830	!
	2831	DO jr = 1, ndim_rank_north ! recover the global north array
	2832	iproc = nrank_north(jr) + 1
	2833	ildi = nldit (iproc)
	2834	ilei = nleit (iproc)
	2835	iilb = nimppt(iproc)
	2836	DO jj = 1, ijpj+2*jpr2dj
	2837	DO ji = ildi, ilei
[4152]	2838	ztab_e(ji+iilb-1,jj) = znorthgloio_e(ji,jj,jr)
[311]	2839	END DO
[1344]	2840	END DO
	2841	END DO
[311]	2842
	2843
[1344]	2844	! 2. North-Fold boundary conditions
	2845	! ----------------------------------
[4152]	2846	CALL lbc_nfd( ztab_e(:,:), cd_type, psgn, pr2dj = jpr2dj )
[311]	2847
[1344]	2848	ij = jpr2dj
	2849	!! Scatter back to pt2d
	2850	DO jj = nlcj - ijpj + 1 , nlcj +jpr2dj
[3764]	2851	ij = ij +1
[1344]	2852	DO ji= 1, nlci
[4152]	2853	pt2d(ji,jj) = ztab_e(ji+nimpp-1,ij)
[311]	2854	END DO
	2855	END DO
[1344]	2856	!
[4152]	2857	DEALLOCATE( ztab_e, znorthloc_e, znorthgloio_e )
	2858	!
[311]	2859	END SUBROUTINE mpp_lbc_north_e
	2860
[3680]	2861	SUBROUTINE mpp_lnk_bdy_3d( ptab, cd_type, psgn, ib_bdy )
	2862	!!----------------------------------------------------------------------
	2863	!! * routine mpp_lnk_bdy_3d *
	2864	!!
	2865	!! ** Purpose : Message passing management
	2866	!!
	2867	!! ** Method : Use mppsend and mpprecv function for passing BDY boundaries
	2868	!! between processors following neighboring subdomains.
	2869	!! domain parameters
	2870	!! nlci : first dimension of the local subdomain
	2871	!! nlcj : second dimension of the local subdomain
	2872	!! nbondi_bdy : mark for "east-west local boundary"
	2873	!! nbondj_bdy : mark for "north-south local boundary"
	2874	!! noea : number for local neighboring processors
	2875	!! nowe : number for local neighboring processors
	2876	!! noso : number for local neighboring processors
	2877	!! nono : number for local neighboring processors
	2878	!!
	2879	!! ** Action : ptab with update value at its periphery
	2880	!!
	2881	!!----------------------------------------------------------------------
[389]	2882
[3680]	2883	USE lbcnfd ! north fold
	2884
	2885	INCLUDE 'mpif.h'
	2886
	2887	REAL(wp), DIMENSION(jpi,jpj,jpk), INTENT(inout) :: ptab ! 3D array on which the boundary condition is applied
	2888	CHARACTER(len=1) , INTENT(in ) :: cd_type ! define the nature of ptab array grid-points
	2889	! ! = T , U , V , F , W points
	2890	REAL(wp) , INTENT(in ) :: psgn ! =-1 the sign change across the north fold boundary
	2891	! ! = 1. , the sign is kept
	2892	INTEGER , INTENT(in ) :: ib_bdy ! BDY boundary set
	2893	INTEGER :: ji, jj, jk, jl ! dummy loop indices
	2894	INTEGER :: imigr, iihom, ijhom ! temporary integers
	2895	INTEGER :: ml_req1, ml_req2, ml_err ! for key_mpi_isend
	2896	REAL(wp) :: zland
	2897	INTEGER, DIMENSION(MPI_STATUS_SIZE) :: ml_stat ! for key_mpi_isend
[4152]	2898	!
	2899	REAL(wp), DIMENSION(:,:,:,:), ALLOCATABLE :: zt3ns, zt3sn ! 3d for north-south & south-north
	2900	REAL(wp), DIMENSION(:,:,:,:), ALLOCATABLE :: zt3ew, zt3we ! 3d for east-west & west-east
	2901
[3680]	2902	!!----------------------------------------------------------------------
[4152]	2903
	2904	ALLOCATE( zt3ns(jpi,jprecj,jpk,2), zt3sn(jpi,jprecj,jpk,2), &
	2905	& zt3ew(jpj,jpreci,jpk,2), zt3we(jpj,jpreci,jpk,2) )
[3680]	2906
	2907	zland = 0.e0
	2908
	2909	! 1. standard boundary treatment
	2910	! ------------------------------
	2911
	2912	! ! East-West boundaries
	2913	! !* Cyclic east-west
	2914
	2915	IF( nbondi == 2) THEN
	2916	IF (nperio == 1 .OR. nperio == 4 .OR. nperio == 6) THEN
	2917	ptab( 1 ,:,:) = ptab(jpim1,:,:)
	2918	ptab(jpi,:,:) = ptab( 2 ,:,:)
	2919	ELSE
	2920	IF( .NOT. cd_type == 'F' ) ptab( 1 :jpreci,:,:) = zland ! south except F-point
	2921	ptab(nlci-jpreci+1:jpi ,:,:) = zland ! north
	2922	ENDIF
	2923	ELSEIF(nbondi == -1) THEN
	2924	IF( .NOT. cd_type == 'F' ) ptab( 1 :jpreci,:,:) = zland ! south except F-point
	2925	ELSEIF(nbondi == 1) THEN
	2926	ptab(nlci-jpreci+1:jpi ,:,:) = zland ! north
	2927	ENDIF !* closed
	2928
	2929	IF (nbondj == 2 .OR. nbondj == -1) THEN
	2930	IF( .NOT. cd_type == 'F' ) ptab(:, 1 :jprecj,:) = zland ! south except F-point
	2931	ELSEIF (nbondj == 2 .OR. nbondj == 1) THEN
	2932	ptab(:,nlcj-jprecj+1:jpj ,:) = zland ! north
	2933	ENDIF
	2934
	2935	!
	2936
	2937	! 2. East and west directions exchange
	2938	! ------------------------------------
	2939	! we play with the neigbours AND the row number because of the periodicity
	2940	!
	2941	SELECT CASE ( nbondi_bdy(ib_bdy) ) ! Read Dirichlet lateral conditions
	2942	CASE ( -1, 0, 1 ) ! all exept 2 (i.e. close case)
	2943	iihom = nlci-nreci
	2944	DO jl = 1, jpreci
[4152]	2945	zt3ew(:,jl,:,1) = ptab(jpreci+jl,:,:)
	2946	zt3we(:,jl,:,1) = ptab(iihom +jl,:,:)
[3680]	2947	END DO
	2948	END SELECT
	2949	!
	2950	! ! Migrations
	2951	imigr = jpreci * jpj * jpk
	2952	!
	2953	SELECT CASE ( nbondi_bdy(ib_bdy) )
	2954	CASE ( -1 )
[4152]	2955	CALL mppsend( 2, zt3we(1,1,1,1), imigr, noea, ml_req1 )
[3680]	2956	CASE ( 0 )
[4152]	2957	CALL mppsend( 1, zt3ew(1,1,1,1), imigr, nowe, ml_req1 )
	2958	CALL mppsend( 2, zt3we(1,1,1,1), imigr, noea, ml_req2 )
[3680]	2959	CASE ( 1 )
[4152]	2960	CALL mppsend( 1, zt3ew(1,1,1,1), imigr, nowe, ml_req1 )
[3680]	2961	END SELECT
	2962	!
	2963	SELECT CASE ( nbondi_bdy_b(ib_bdy) )
	2964	CASE ( -1 )
[4152]	2965	CALL mpprecv( 1, zt3ew(1,1,1,2), imigr, noea )
[3680]	2966	CASE ( 0 )
[4152]	2967	CALL mpprecv( 1, zt3ew(1,1,1,2), imigr, noea )
	2968	CALL mpprecv( 2, zt3we(1,1,1,2), imigr, nowe )
[3680]	2969	CASE ( 1 )
[4152]	2970	CALL mpprecv( 2, zt3we(1,1,1,2), imigr, nowe )
[3680]	2971	END SELECT
	2972	!
	2973	SELECT CASE ( nbondi_bdy(ib_bdy) )
	2974	CASE ( -1 )
	2975	IF(l_isend) CALL mpi_wait(ml_req1, ml_stat, ml_err)
	2976	CASE ( 0 )
	2977	IF(l_isend) CALL mpi_wait(ml_req1, ml_stat, ml_err)
	2978	IF(l_isend) CALL mpi_wait(ml_req2, ml_stat, ml_err)
	2979	CASE ( 1 )
	2980	IF(l_isend) CALL mpi_wait(ml_req1, ml_stat, ml_err)
	2981	END SELECT
	2982	!
	2983	! ! Write Dirichlet lateral conditions
	2984	iihom = nlci-jpreci
	2985	!
	2986	SELECT CASE ( nbondi_bdy_b(ib_bdy) )
	2987	CASE ( -1 )
	2988	DO jl = 1, jpreci
[4152]	2989	ptab(iihom+jl,:,:) = zt3ew(:,jl,:,2)
[3680]	2990	END DO
	2991	CASE ( 0 )
	2992	DO jl = 1, jpreci
[4152]	2993	ptab(jl ,:,:) = zt3we(:,jl,:,2)
	2994	ptab(iihom+jl,:,:) = zt3ew(:,jl,:,2)
[3680]	2995	END DO
	2996	CASE ( 1 )
	2997	DO jl = 1, jpreci
[4152]	2998	ptab(jl ,:,:) = zt3we(:,jl,:,2)
[3680]	2999	END DO
	3000	END SELECT
	3001
	3002
	3003	! 3. North and south directions
	3004	! -----------------------------
	3005	! always closed : we play only with the neigbours
	3006	!
	3007	IF( nbondj_bdy(ib_bdy) /= 2 ) THEN ! Read Dirichlet lateral conditions
	3008	ijhom = nlcj-nrecj
	3009	DO jl = 1, jprecj
[4152]	3010	zt3sn(:,jl,:,1) = ptab(:,ijhom +jl,:)
	3011	zt3ns(:,jl,:,1) = ptab(:,jprecj+jl,:)
[3680]	3012	END DO
	3013	ENDIF
	3014	!
	3015	! ! Migrations
	3016	imigr = jprecj * jpi * jpk
	3017	!
	3018	SELECT CASE ( nbondj_bdy(ib_bdy) )
	3019	CASE ( -1 )
[4152]	3020	CALL mppsend( 4, zt3sn(1,1,1,1), imigr, nono, ml_req1 )
[3680]	3021	CASE ( 0 )
[4152]	3022	CALL mppsend( 3, zt3ns(1,1,1,1), imigr, noso, ml_req1 )
	3023	CALL mppsend( 4, zt3sn(1,1,1,1), imigr, nono, ml_req2 )
[3680]	3024	CASE ( 1 )
[4152]	3025	CALL mppsend( 3, zt3ns(1,1,1,1), imigr, noso, ml_req1 )
[3680]	3026	END SELECT
	3027	!
	3028	SELECT CASE ( nbondj_bdy_b(ib_bdy) )
	3029	CASE ( -1 )
[4152]	3030	CALL mpprecv( 3, zt3ns(1,1,1,2), imigr, nono )
[3680]	3031	CASE ( 0 )
[4152]	3032	CALL mpprecv( 3, zt3ns(1,1,1,2), imigr, nono )
	3033	CALL mpprecv( 4, zt3sn(1,1,1,2), imigr, noso )
[3680]	3034	CASE ( 1 )
[4152]	3035	CALL mpprecv( 4, zt3sn(1,1,1,2), imigr, noso )
[3680]	3036	END SELECT
	3037	!
	3038	SELECT CASE ( nbondj_bdy(ib_bdy) )
	3039	CASE ( -1 )
	3040	IF(l_isend) CALL mpi_wait(ml_req1, ml_stat, ml_err)
	3041	CASE ( 0 )
	3042	IF(l_isend) CALL mpi_wait(ml_req1, ml_stat, ml_err)
	3043	IF(l_isend) CALL mpi_wait(ml_req2, ml_stat, ml_err)
	3044	CASE ( 1 )
	3045	IF(l_isend) CALL mpi_wait(ml_req1, ml_stat, ml_err)
	3046	END SELECT
	3047	!
	3048	! ! Write Dirichlet lateral conditions
	3049	ijhom = nlcj-jprecj
	3050	!
	3051	SELECT CASE ( nbondj_bdy_b(ib_bdy) )
	3052	CASE ( -1 )
	3053	DO jl = 1, jprecj
[4152]	3054	ptab(:,ijhom+jl,:) = zt3ns(:,jl,:,2)
[3680]	3055	END DO
	3056	CASE ( 0 )
	3057	DO jl = 1, jprecj
[4152]	3058	ptab(:,jl ,:) = zt3sn(:,jl,:,2)
	3059	ptab(:,ijhom+jl,:) = zt3ns(:,jl,:,2)
[3680]	3060	END DO
	3061	CASE ( 1 )
	3062	DO jl = 1, jprecj
[4152]	3063	ptab(:,jl,:) = zt3sn(:,jl,:,2)
[3680]	3064	END DO
	3065	END SELECT
	3066
	3067
	3068	! 4. north fold treatment
	3069	! -----------------------
	3070	!
	3071	IF( npolj /= 0) THEN
	3072	!
	3073	SELECT CASE ( jpni )
	3074	CASE ( 1 ) ; CALL lbc_nfd ( ptab, cd_type, psgn ) ! only 1 northern proc, no mpp
	3075	CASE DEFAULT ; CALL mpp_lbc_north( ptab, cd_type, psgn ) ! for all northern procs.
	3076	END SELECT
	3077	!
	3078	ENDIF
	3079	!
[4152]	3080	DEALLOCATE( zt3ns, zt3sn, zt3ew, zt3we )
	3081	!
[3680]	3082	END SUBROUTINE mpp_lnk_bdy_3d
	3083
	3084	SUBROUTINE mpp_lnk_bdy_2d( ptab, cd_type, psgn, ib_bdy )
	3085	!!----------------------------------------------------------------------
	3086	!! * routine mpp_lnk_bdy_2d *
	3087	!!
	3088	!! ** Purpose : Message passing management
	3089	!!
	3090	!! ** Method : Use mppsend and mpprecv function for passing BDY boundaries
	3091	!! between processors following neighboring subdomains.
	3092	!! domain parameters
	3093	!! nlci : first dimension of the local subdomain
	3094	!! nlcj : second dimension of the local subdomain
	3095	!! nbondi_bdy : mark for "east-west local boundary"
	3096	!! nbondj_bdy : mark for "north-south local boundary"
	3097	!! noea : number for local neighboring processors
	3098	!! nowe : number for local neighboring processors
	3099	!! noso : number for local neighboring processors
	3100	!! nono : number for local neighboring processors
	3101	!!
	3102	!! ** Action : ptab with update value at its periphery
	3103	!!
	3104	!!----------------------------------------------------------------------
	3105
	3106	USE lbcnfd ! north fold
	3107
	3108	INCLUDE 'mpif.h'
	3109
	3110	REAL(wp), DIMENSION(jpi,jpj) , INTENT(inout) :: ptab ! 3D array on which the boundary condition is applied
	3111	CHARACTER(len=1) , INTENT(in ) :: cd_type ! define the nature of ptab array grid-points
	3112	! ! = T , U , V , F , W points
	3113	REAL(wp) , INTENT(in ) :: psgn ! =-1 the sign change across the north fold boundary
	3114	! ! = 1. , the sign is kept
	3115	INTEGER , INTENT(in ) :: ib_bdy ! BDY boundary set
	3116	INTEGER :: ji, jj, jl ! dummy loop indices
	3117	INTEGER :: imigr, iihom, ijhom ! temporary integers
	3118	INTEGER :: ml_req1, ml_req2, ml_err ! for key_mpi_isend
	3119	REAL(wp) :: zland
	3120	INTEGER, DIMENSION(MPI_STATUS_SIZE) :: ml_stat ! for key_mpi_isend
[4152]	3121	!
	3122	REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: zt2ns, zt2sn ! 2d for north-south & south-north
	3123	REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: zt2ew, zt2we ! 2d for east-west & west-east
	3124
[3680]	3125	!!----------------------------------------------------------------------
	3126
[4152]	3127	ALLOCATE( zt2ns(jpi,jprecj,2), zt2sn(jpi,jprecj,2), &
	3128	& zt2ew(jpj,jpreci,2), zt2we(jpj,jpreci,2) )
	3129
[3680]	3130	zland = 0.e0
	3131
	3132	! 1. standard boundary treatment
	3133	! ------------------------------
	3134
	3135	! ! East-West boundaries
	3136	! !* Cyclic east-west
	3137
	3138	IF( nbondi == 2) THEN
	3139	IF (nperio == 1 .OR. nperio == 4 .OR. nperio == 6) THEN
	3140	ptab( 1 ,:) = ptab(jpim1,:)
	3141	ptab(jpi,:) = ptab( 2 ,:)
	3142	ELSE
	3143	IF( .NOT. cd_type == 'F' ) ptab( 1 :jpreci,:) = zland ! south except F-point
	3144	ptab(nlci-jpreci+1:jpi ,:) = zland ! north
	3145	ENDIF
	3146	ELSEIF(nbondi == -1) THEN
	3147	IF( .NOT. cd_type == 'F' ) ptab( 1 :jpreci,:) = zland ! south except F-point
	3148	ELSEIF(nbondi == 1) THEN
	3149	ptab(nlci-jpreci+1:jpi ,:) = zland ! north
	3150	ENDIF !* closed
	3151
	3152	IF (nbondj == 2 .OR. nbondj == -1) THEN
	3153	IF( .NOT. cd_type == 'F' ) ptab(:, 1 :jprecj) = zland ! south except F-point
	3154	ELSEIF (nbondj == 2 .OR. nbondj == 1) THEN
	3155	ptab(:,nlcj-jprecj+1:jpj) = zland ! north
	3156	ENDIF
	3157
	3158	!
	3159
	3160	! 2. East and west directions exchange
	3161	! ------------------------------------
	3162	! we play with the neigbours AND the row number because of the periodicity
	3163	!
	3164	SELECT CASE ( nbondi_bdy(ib_bdy) ) ! Read Dirichlet lateral conditions
	3165	CASE ( -1, 0, 1 ) ! all exept 2 (i.e. close case)
	3166	iihom = nlci-nreci
	3167	DO jl = 1, jpreci
[4152]	3168	zt2ew(:,jl,1) = ptab(jpreci+jl,:)
	3169	zt2we(:,jl,1) = ptab(iihom +jl,:)
[3680]	3170	END DO
	3171	END SELECT
	3172	!
	3173	! ! Migrations
	3174	imigr = jpreci * jpj
	3175	!
	3176	SELECT CASE ( nbondi_bdy(ib_bdy) )
	3177	CASE ( -1 )
[4152]	3178	CALL mppsend( 2, zt2we(1,1,1), imigr, noea, ml_req1 )
[3680]	3179	CASE ( 0 )
[4152]	3180	CALL mppsend( 1, zt2ew(1,1,1), imigr, nowe, ml_req1 )
	3181	CALL mppsend( 2, zt2we(1,1,1), imigr, noea, ml_req2 )
[3680]	3182	CASE ( 1 )
[4152]	3183	CALL mppsend( 1, zt2ew(1,1,1), imigr, nowe, ml_req1 )
[3680]	3184	END SELECT
	3185	!
	3186	SELECT CASE ( nbondi_bdy_b(ib_bdy) )
	3187	CASE ( -1 )
[4152]	3188	CALL mpprecv( 1, zt2ew(1,1,2), imigr, noea )
[3680]	3189	CASE ( 0 )
[4152]	3190	CALL mpprecv( 1, zt2ew(1,1,2), imigr, noea )
	3191	CALL mpprecv( 2, zt2we(1,1,2), imigr, nowe )
[3680]	3192	CASE ( 1 )
[4152]	3193	CALL mpprecv( 2, zt2we(1,1,2), imigr, nowe )
[3680]	3194	END SELECT
	3195	!
	3196	SELECT CASE ( nbondi_bdy(ib_bdy) )
	3197	CASE ( -1 )
	3198	IF(l_isend) CALL mpi_wait(ml_req1, ml_stat, ml_err)
	3199	CASE ( 0 )
	3200	IF(l_isend) CALL mpi_wait(ml_req1, ml_stat, ml_err)
	3201	IF(l_isend) CALL mpi_wait(ml_req2, ml_stat, ml_err)
	3202	CASE ( 1 )
	3203	IF(l_isend) CALL mpi_wait(ml_req1, ml_stat, ml_err)
	3204	END SELECT
	3205	!
	3206	! ! Write Dirichlet lateral conditions
	3207	iihom = nlci-jpreci
	3208	!
	3209	SELECT CASE ( nbondi_bdy_b(ib_bdy) )
	3210	CASE ( -1 )
	3211	DO jl = 1, jpreci
[4152]	3212	ptab(iihom+jl,:) = zt2ew(:,jl,2)
[3680]	3213	END DO
	3214	CASE ( 0 )
	3215	DO jl = 1, jpreci
[4152]	3216	ptab(jl ,:) = zt2we(:,jl,2)
	3217	ptab(iihom+jl,:) = zt2ew(:,jl,2)
[3680]	3218	END DO
	3219	CASE ( 1 )
	3220	DO jl = 1, jpreci
[4152]	3221	ptab(jl ,:) = zt2we(:,jl,2)
[3680]	3222	END DO
	3223	END SELECT
	3224
	3225
	3226	! 3. North and south directions
	3227	! -----------------------------
	3228	! always closed : we play only with the neigbours
	3229	!
	3230	IF( nbondj_bdy(ib_bdy) /= 2 ) THEN ! Read Dirichlet lateral conditions
	3231	ijhom = nlcj-nrecj
	3232	DO jl = 1, jprecj
[4152]	3233	zt2sn(:,jl,1) = ptab(:,ijhom +jl)
	3234	zt2ns(:,jl,1) = ptab(:,jprecj+jl)
[3680]	3235	END DO
	3236	ENDIF
	3237	!
	3238	! ! Migrations
	3239	imigr = jprecj * jpi
	3240	!
	3241	SELECT CASE ( nbondj_bdy(ib_bdy) )
	3242	CASE ( -1 )
[4152]	3243	CALL mppsend( 4, zt2sn(1,1,1), imigr, nono, ml_req1 )
[3680]	3244	CASE ( 0 )
[4152]	3245	CALL mppsend( 3, zt2ns(1,1,1), imigr, noso, ml_req1 )
	3246	CALL mppsend( 4, zt2sn(1,1,1), imigr, nono, ml_req2 )
[3680]	3247	CASE ( 1 )
[4152]	3248	CALL mppsend( 3, zt2ns(1,1,1), imigr, noso, ml_req1 )
[3680]	3249	END SELECT
	3250	!
	3251	SELECT CASE ( nbondj_bdy_b(ib_bdy) )
	3252	CASE ( -1 )
[4152]	3253	CALL mpprecv( 3, zt2ns(1,1,2), imigr, nono )
[3680]	3254	CASE ( 0 )
[4152]	3255	CALL mpprecv( 3, zt2ns(1,1,2), imigr, nono )
	3256	CALL mpprecv( 4, zt2sn(1,1,2), imigr, noso )
[3680]	3257	CASE ( 1 )
[4152]	3258	CALL mpprecv( 4, zt2sn(1,1,2), imigr, noso )
[3680]	3259	END SELECT
	3260	!
	3261	SELECT CASE ( nbondj_bdy(ib_bdy) )
	3262	CASE ( -1 )
	3263	IF(l_isend) CALL mpi_wait(ml_req1, ml_stat, ml_err)
	3264	CASE ( 0 )
	3265	IF(l_isend) CALL mpi_wait(ml_req1, ml_stat, ml_err)
	3266	IF(l_isend) CALL mpi_wait(ml_req2, ml_stat, ml_err)
	3267	CASE ( 1 )
	3268	IF(l_isend) CALL mpi_wait(ml_req1, ml_stat, ml_err)
	3269	END SELECT
	3270	!
	3271	! ! Write Dirichlet lateral conditions
	3272	ijhom = nlcj-jprecj
	3273	!
	3274	SELECT CASE ( nbondj_bdy_b(ib_bdy) )
	3275	CASE ( -1 )
	3276	DO jl = 1, jprecj
[4152]	3277	ptab(:,ijhom+jl) = zt2ns(:,jl,2)
[3680]	3278	END DO
	3279	CASE ( 0 )
	3280	DO jl = 1, jprecj
[4152]	3281	ptab(:,jl ) = zt2sn(:,jl,2)
	3282	ptab(:,ijhom+jl) = zt2ns(:,jl,2)
[3680]	3283	END DO
	3284	CASE ( 1 )
	3285	DO jl = 1, jprecj
[4152]	3286	ptab(:,jl) = zt2sn(:,jl,2)
[3680]	3287	END DO
	3288	END SELECT
	3289
	3290
	3291	! 4. north fold treatment
	3292	! -----------------------
	3293	!
	3294	IF( npolj /= 0) THEN
	3295	!
	3296	SELECT CASE ( jpni )
	3297	CASE ( 1 ) ; CALL lbc_nfd ( ptab, cd_type, psgn ) ! only 1 northern proc, no mpp
	3298	CASE DEFAULT ; CALL mpp_lbc_north( ptab, cd_type, psgn ) ! for all northern procs.
	3299	END SELECT
	3300	!
	3301	ENDIF
	3302	!
[4152]	3303	DEALLOCATE( zt2ns, zt2sn, zt2ew, zt2we )
	3304	!
[3680]	3305	END SUBROUTINE mpp_lnk_bdy_2d
	3306
[2481]	3307	SUBROUTINE mpi_init_opa( ldtxt, ksft, code )
[1344]	3308	!!---------------------------------------------------------------------
	3309	!! * routine mpp_init.opa *
	3310	!!
	3311	!! ** Purpose :: export and attach a MPI buffer for bsend
	3312	!!
	3313	!! ** Method :: define buffer size in namelist, if 0 no buffer attachment
	3314	!! but classical mpi_init
[3764]	3315	!!
	3316	!! History :: 01/11 :: IDRIS initial version for IBM only
[1344]	3317	!! 08/04 :: R. Benshila, generalisation
	3318	!!---------------------------------------------------------------------
[3764]	3319	CHARACTER(len=*),DIMENSION(:), INTENT( out) :: ldtxt
[2481]	3320	INTEGER , INTENT(inout) :: ksft
	3321	INTEGER , INTENT( out) :: code
	3322	INTEGER :: ierr, ji
	3323	LOGICAL :: mpi_was_called
[1344]	3324	!!---------------------------------------------------------------------
	3325	!
	3326	CALL mpi_initialized( mpi_was_called, code ) ! MPI initialization
[532]	3327	IF ( code /= MPI_SUCCESS ) THEN
[3764]	3328	DO ji = 1, SIZE(ldtxt)
[2481]	3329	IF( TRIM(ldtxt(ji)) /= '' ) WRITE(,) ldtxt(ji) ! control print of mynode
[3764]	3330	END DO
[2481]	3331	WRITE(*, cform_err)
	3332	WRITE(, ) ' lib_mpp: Error in routine mpi_initialized'
[1344]	3333	CALL mpi_abort( mpi_comm_world, code, ierr )
[532]	3334	ENDIF
[1344]	3335	!
	3336	IF( .NOT. mpi_was_called ) THEN
	3337	CALL mpi_init( code )
	3338	CALL mpi_comm_dup( mpi_comm_world, mpi_comm_opa, code )
[532]	3339	IF ( code /= MPI_SUCCESS ) THEN
[3764]	3340	DO ji = 1, SIZE(ldtxt)
[2481]	3341	IF( TRIM(ldtxt(ji)) /= '' ) WRITE(,) ldtxt(ji) ! control print of mynode
	3342	END DO
	3343	WRITE(*, cform_err)
	3344	WRITE(, ) ' lib_mpp: Error in routine mpi_comm_dup'
[532]	3345	CALL mpi_abort( mpi_comm_world, code, ierr )
	3346	ENDIF
	3347	ENDIF
[1344]	3348	!
[897]	3349	IF( nn_buffer > 0 ) THEN
[2481]	3350	WRITE(ldtxt(ksft),*) 'mpi_bsend, buffer allocation of : ', nn_buffer ; ksft = ksft + 1
[897]	3351	! Buffer allocation and attachment
[2481]	3352	ALLOCATE( tampon(nn_buffer), stat = ierr )
[3764]	3353	IF( ierr /= 0 ) THEN
	3354	DO ji = 1, SIZE(ldtxt)
[2481]	3355	IF( TRIM(ldtxt(ji)) /= '' ) WRITE(,) ldtxt(ji) ! control print of mynode
	3356	END DO
	3357	WRITE(*, cform_err)
	3358	WRITE(, ) ' lib_mpp: Error in ALLOCATE', ierr
	3359	CALL mpi_abort( mpi_comm_world, code, ierr )
	3360	END IF
	3361	CALL mpi_buffer_attach( tampon, nn_buffer, code )
[897]	3362	ENDIF
[1344]	3363	!
[13]	3364	END SUBROUTINE mpi_init_opa
[3]	3365
[1976]	3366	SUBROUTINE DDPDD_MPI (ydda, yddb, ilen, itype)
	3367	!!---------------------------------------------------------------------
	3368	!! Routine DDPDD_MPI: used by reduction operator MPI_SUMDD
	3369	!!
	3370	!! Modification of original codes written by David H. Bailey
	3371	!! This subroutine computes yddb(i) = ydda(i)+yddb(i)
	3372	!!---------------------------------------------------------------------
	3373	INTEGER, INTENT(in) :: ilen, itype
	3374	COMPLEX(wp), DIMENSION(ilen), INTENT(in) :: ydda
	3375	COMPLEX(wp), DIMENSION(ilen), INTENT(inout) :: yddb
	3376	!
	3377	REAL(wp) :: zerr, zt1, zt2 ! local work variables
	3378	INTEGER :: ji, ztmp ! local scalar
	3379
	3380	ztmp = itype ! avoid compilation warning
	3381
	3382	DO ji=1,ilen
	3383	! Compute ydda + yddb using Knuth's trick.
	3384	zt1 = real(ydda(ji)) + real(yddb(ji))
	3385	zerr = zt1 - real(ydda(ji))
	3386	zt2 = ((real(yddb(ji)) - zerr) + (real(ydda(ji)) - (zt1 - zerr))) &
	3387	+ aimag(ydda(ji)) + aimag(yddb(ji))
	3388
	3389	! The result is zt1 + zt2, after normalization.
	3390	yddb(ji) = cmplx ( zt1 + zt2, zt2 - ((zt1 + zt2) - zt1),wp )
	3391	END DO
	3392
	3393	END SUBROUTINE DDPDD_MPI
	3394
[4990]	3395	SUBROUTINE mpp_lbc_north_icb( pt2d, cd_type, psgn, pr2dj)
	3396	!!---------------------------------------------------------------------
	3397	!! * routine mpp_lbc_north_icb *
	3398	!!
	3399	!! ** Purpose : Ensure proper north fold horizontal bondary condition
	3400	!! in mpp configuration in case of jpn1 > 1 and for 2d
	3401	!! array with outer extra halo
	3402	!!
	3403	!! ** Method : North fold condition and mpp with more than one proc
	3404	!! in i-direction require a specific treatment. We gather
	3405	!! the 4+2*jpr2dj northern lines of the global domain on 1
	3406	!! processor and apply lbc north-fold on this sub array.
	3407	!! Then we scatter the north fold array back to the processors.
	3408	!! This version accounts for an extra halo with icebergs.
	3409	!!
	3410	!!----------------------------------------------------------------------
	3411	REAL(wp), DIMENSION(:,:), INTENT(inout) :: pt2d ! 2D array with extra halo
	3412	CHARACTER(len=1) , INTENT(in ) :: cd_type ! nature of pt3d grid-points
	3413	! ! = T , U , V , F or W -points
	3414	REAL(wp) , INTENT(in ) :: psgn ! = -1. the sign change across the
	3415	!! ! north fold, = 1. otherwise
	3416	INTEGER, OPTIONAL , INTENT(in ) :: pr2dj
	3417	INTEGER :: ji, jj, jr
	3418	INTEGER :: ierr, itaille, ildi, ilei, iilb
	3419	INTEGER :: ijpj, ij, iproc, ipr2dj
	3420	!
	3421	REAL(wp), DIMENSION(:,:) , ALLOCATABLE :: ztab_e, znorthloc_e
	3422	REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: znorthgloio_e
	3423
	3424	!!----------------------------------------------------------------------
	3425	!
	3426	ijpj=4
	3427	IF( PRESENT(pr2dj) ) THEN ! use of additional halos
	3428	ipr2dj = pr2dj
	3429	ELSE
	3430	ipr2dj = 0
	3431	ENDIF
	3432	ALLOCATE( ztab_e(jpiglo,4+2ipr2dj), znorthloc_e(jpi,4+2ipr2dj), znorthgloio_e(jpi,4+2*ipr2dj,jpni) )
	3433
	3434	!
	3435	ztab_e(:,:) = 0.e0
	3436
	3437	ij=0
	3438	! put in znorthloc_e the last 4 jlines of pt2d
	3439	DO jj = nlcj - ijpj + 1 - ipr2dj, nlcj +ipr2dj
	3440	ij = ij + 1
	3441	DO ji = 1, jpi
	3442	znorthloc_e(ji,ij)=pt2d(ji,jj)
	3443	END DO
	3444	END DO
	3445	!
	3446	itaille = jpi * ( ijpj + 2 * ipr2dj )
	3447	CALL MPI_ALLGATHER( znorthloc_e(1,1) , itaille, MPI_DOUBLE_PRECISION, &
	3448	& znorthgloio_e(1,1,1), itaille, MPI_DOUBLE_PRECISION, ncomm_north, ierr )
	3449	!
	3450	DO jr = 1, ndim_rank_north ! recover the global north array
	3451	iproc = nrank_north(jr) + 1
	3452	ildi = nldit (iproc)
	3453	ilei = nleit (iproc)
	3454	iilb = nimppt(iproc)
	3455	DO jj = 1, ijpj+2*ipr2dj
	3456	DO ji = ildi, ilei
	3457	ztab_e(ji+iilb-1,jj) = znorthgloio_e(ji,jj,jr)
	3458	END DO
	3459	END DO
	3460	END DO
	3461
	3462
	3463	! 2. North-Fold boundary conditions
	3464	! ----------------------------------
	3465	CALL lbc_nfd( ztab_e(:,:), cd_type, psgn, pr2dj = ipr2dj )
	3466
	3467	ij = ipr2dj
	3468	!! Scatter back to pt2d
	3469	DO jj = nlcj - ijpj + 1 , nlcj +ipr2dj
	3470	ij = ij +1
	3471	DO ji= 1, nlci
	3472	pt2d(ji,jj) = ztab_e(ji+nimpp-1,ij)
	3473	END DO
	3474	END DO
	3475	!
	3476	DEALLOCATE( ztab_e, znorthloc_e, znorthgloio_e )
	3477	!
	3478	END SUBROUTINE mpp_lbc_north_icb
	3479
	3480	SUBROUTINE mpp_lnk_2d_icb( pt2d, cd_type, psgn, jpri, jprj )
	3481	!!----------------------------------------------------------------------
	3482	!! * routine mpp_lnk_2d_icb *
	3483	!!
	3484	!! ** Purpose : Message passing manadgement for 2d array (with extra halo and icebergs)
	3485	!!
	3486	!! ** Method : Use mppsend and mpprecv function for passing mask
	3487	!! between processors following neighboring subdomains.
	3488	!! domain parameters
	3489	!! nlci : first dimension of the local subdomain
	3490	!! nlcj : second dimension of the local subdomain
	3491	!! jpri : number of rows for extra outer halo
	3492	!! jprj : number of columns for extra outer halo
	3493	!! nbondi : mark for "east-west local boundary"
	3494	!! nbondj : mark for "north-south local boundary"
	3495	!! noea : number for local neighboring processors
	3496	!! nowe : number for local neighboring processors
	3497	!! noso : number for local neighboring processors
	3498	!! nono : number for local neighboring processors
	3499	!!
	3500	!!----------------------------------------------------------------------
	3501	INTEGER , INTENT(in ) :: jpri
	3502	INTEGER , INTENT(in ) :: jprj
	3503	REAL(wp), DIMENSION(1-jpri:jpi+jpri,1-jprj:jpj+jprj), INTENT(inout) :: pt2d ! 2D array with extra halo
	3504	CHARACTER(len=1) , INTENT(in ) :: cd_type ! nature of ptab array grid-points
	3505	! ! = T , U , V , F , W and I points
	3506	REAL(wp) , INTENT(in ) :: psgn ! =-1 the sign change across the
	3507	!! ! north boundary, = 1. otherwise
	3508	INTEGER :: jl ! dummy loop indices
	3509	INTEGER :: imigr, iihom, ijhom ! temporary integers
	3510	INTEGER :: ipreci, iprecj ! temporary integers
	3511	INTEGER :: ml_req1, ml_req2, ml_err ! for key_mpi_isend
	3512	INTEGER, DIMENSION(MPI_STATUS_SIZE) :: ml_stat ! for key_mpi_isend
	3513	!!
	3514	REAL(wp), DIMENSION(1-jpri:jpi+jpri,jprecj+jprj,2) :: r2dns
	3515	REAL(wp), DIMENSION(1-jpri:jpi+jpri,jprecj+jprj,2) :: r2dsn
	3516	REAL(wp), DIMENSION(1-jprj:jpj+jprj,jpreci+jpri,2) :: r2dwe
	3517	REAL(wp), DIMENSION(1-jprj:jpj+jprj,jpreci+jpri,2) :: r2dew
	3518	!!----------------------------------------------------------------------
	3519
	3520	ipreci = jpreci + jpri ! take into account outer extra 2D overlap area
	3521	iprecj = jprecj + jprj
	3522
	3523
	3524	! 1. standard boundary treatment
	3525	! ------------------------------
	3526	! Order matters Here !!!!
	3527	!
	3528	! ! East-West boundaries
	3529	! !* Cyclic east-west
	3530	IF( nbondi == 2 .AND. (nperio == 1 .OR. nperio == 4 .OR. nperio == 6) ) THEN
	3531	pt2d(1-jpri: 1 ,:) = pt2d(jpim1-jpri: jpim1 ,:) ! east
	3532	pt2d( jpi :jpi+jpri,:) = pt2d( 2 :2+jpri,:) ! west
	3533	!
	3534	ELSE !* closed
	3535	IF( .NOT. cd_type == 'F' ) pt2d( 1-jpri :jpreci ,:) = 0.e0 ! south except at F-point
	3536	pt2d(nlci-jpreci+1:jpi+jpri,:) = 0.e0 ! north
	3537	ENDIF
	3538	!
	3539
	3540	! north fold treatment
	3541	! -----------------------
	3542	IF( npolj /= 0 ) THEN
	3543	!
	3544	SELECT CASE ( jpni )
	3545	CASE ( 1 ) ; CALL lbc_nfd ( pt2d(1:jpi,1:jpj+jprj), cd_type, psgn, pr2dj=jprj )
	3546	CASE DEFAULT ; CALL mpp_lbc_north_icb( pt2d(1:jpi,1:jpj+jprj) , cd_type, psgn , pr2dj=jprj )
	3547	END SELECT
	3548	!
	3549	ENDIF
	3550
	3551	! 2. East and west directions exchange
	3552	! ------------------------------------
	3553	! we play with the neigbours AND the row number because of the periodicity
	3554	!
	3555	SELECT CASE ( nbondi ) ! Read Dirichlet lateral conditions
	3556	CASE ( -1, 0, 1 ) ! all exept 2 (i.e. close case)
	3557	iihom = nlci-nreci-jpri
	3558	DO jl = 1, ipreci
	3559	r2dew(:,jl,1) = pt2d(jpreci+jl,:)
	3560	r2dwe(:,jl,1) = pt2d(iihom +jl,:)
	3561	END DO
	3562	END SELECT
	3563	!
	3564	! ! Migrations
	3565	imigr = ipreci * ( jpj + 2*jprj)
	3566	!
	3567	SELECT CASE ( nbondi )
	3568	CASE ( -1 )
	3569	CALL mppsend( 2, r2dwe(1-jprj,1,1), imigr, noea, ml_req1 )
	3570	CALL mpprecv( 1, r2dew(1-jprj,1,2), imigr, noea )
	3571	IF(l_isend) CALL mpi_wait(ml_req1,ml_stat,ml_err)
	3572	CASE ( 0 )
	3573	CALL mppsend( 1, r2dew(1-jprj,1,1), imigr, nowe, ml_req1 )
	3574	CALL mppsend( 2, r2dwe(1-jprj,1,1), imigr, noea, ml_req2 )
	3575	CALL mpprecv( 1, r2dew(1-jprj,1,2), imigr, noea )
	3576	CALL mpprecv( 2, r2dwe(1-jprj,1,2), imigr, nowe )
	3577	IF(l_isend) CALL mpi_wait(ml_req1,ml_stat,ml_err)
	3578	IF(l_isend) CALL mpi_wait(ml_req2,ml_stat,ml_err)
	3579	CASE ( 1 )
	3580	CALL mppsend( 1, r2dew(1-jprj,1,1), imigr, nowe, ml_req1 )
	3581	CALL mpprecv( 2, r2dwe(1-jprj,1,2), imigr, nowe )
	3582	IF(l_isend) CALL mpi_wait(ml_req1,ml_stat,ml_err)
	3583	END SELECT
	3584	!
	3585	! ! Write Dirichlet lateral conditions
	3586	iihom = nlci - jpreci
	3587	!
	3588	SELECT CASE ( nbondi )
	3589	CASE ( -1 )
	3590	DO jl = 1, ipreci
	3591	pt2d(iihom+jl,:) = r2dew(:,jl,2)
	3592	END DO
	3593	CASE ( 0 )
	3594	DO jl = 1, ipreci
	3595	pt2d(jl-jpri,:) = r2dwe(:,jl,2)
	3596	pt2d( iihom+jl,:) = r2dew(:,jl,2)
	3597	END DO
	3598	CASE ( 1 )
	3599	DO jl = 1, ipreci
	3600	pt2d(jl-jpri,:) = r2dwe(:,jl,2)
	3601	END DO
	3602	END SELECT
	3603
	3604
	3605	! 3. North and south directions
	3606	! -----------------------------
	3607	! always closed : we play only with the neigbours
	3608	!
	3609	IF( nbondj /= 2 ) THEN ! Read Dirichlet lateral conditions
	3610	ijhom = nlcj-nrecj-jprj
	3611	DO jl = 1, iprecj
	3612	r2dsn(:,jl,1) = pt2d(:,ijhom +jl)
	3613	r2dns(:,jl,1) = pt2d(:,jprecj+jl)
	3614	END DO
	3615	ENDIF
	3616	!
	3617	! ! Migrations
	3618	imigr = iprecj * ( jpi + 2*jpri )
	3619	!
	3620	SELECT CASE ( nbondj )
	3621	CASE ( -1 )
	3622	CALL mppsend( 4, r2dsn(1-jpri,1,1), imigr, nono, ml_req1 )
	3623	CALL mpprecv( 3, r2dns(1-jpri,1,2), imigr, nono )
	3624	IF(l_isend) CALL mpi_wait(ml_req1,ml_stat,ml_err)
	3625	CASE ( 0 )
	3626	CALL mppsend( 3, r2dns(1-jpri,1,1), imigr, noso, ml_req1 )
	3627	CALL mppsend( 4, r2dsn(1-jpri,1,1), imigr, nono, ml_req2 )
	3628	CALL mpprecv( 3, r2dns(1-jpri,1,2), imigr, nono )
	3629	CALL mpprecv( 4, r2dsn(1-jpri,1,2), imigr, noso )
	3630	IF(l_isend) CALL mpi_wait(ml_req1,ml_stat,ml_err)
	3631	IF(l_isend) CALL mpi_wait(ml_req2,ml_stat,ml_err)
	3632	CASE ( 1 )
	3633	CALL mppsend( 3, r2dns(1-jpri,1,1), imigr, noso, ml_req1 )
	3634	CALL mpprecv( 4, r2dsn(1-jpri,1,2), imigr, noso )
	3635	IF(l_isend) CALL mpi_wait(ml_req1,ml_stat,ml_err)
	3636	END SELECT
	3637	!
	3638	! ! Write Dirichlet lateral conditions
	3639	ijhom = nlcj - jprecj
	3640	!
	3641	SELECT CASE ( nbondj )
	3642	CASE ( -1 )
	3643	DO jl = 1, iprecj
	3644	pt2d(:,ijhom+jl) = r2dns(:,jl,2)
	3645	END DO
	3646	CASE ( 0 )
	3647	DO jl = 1, iprecj
	3648	pt2d(:,jl-jprj) = r2dsn(:,jl,2)
	3649	pt2d(:,ijhom+jl ) = r2dns(:,jl,2)
	3650	END DO
	3651	CASE ( 1 )
	3652	DO jl = 1, iprecj
	3653	pt2d(:,jl-jprj) = r2dsn(:,jl,2)
	3654	END DO
	3655	END SELECT
	3656
	3657	END SUBROUTINE mpp_lnk_2d_icb
[13]	3658	#else
	3659	!!----------------------------------------------------------------------
	3660	!! Default case: Dummy module share memory computing
	3661	!!----------------------------------------------------------------------
[2715]	3662	USE in_out_manager
[1976]	3663
[13]	3664	INTERFACE mpp_sum
[3294]	3665	MODULE PROCEDURE mpp_sum_a2s, mpp_sum_as, mpp_sum_ai, mpp_sum_s, mpp_sum_i, mppsum_realdd, mppsum_a_realdd
[13]	3666	END INTERFACE
	3667	INTERFACE mpp_max
[681]	3668	MODULE PROCEDURE mppmax_a_int, mppmax_int, mppmax_a_real, mppmax_real
[13]	3669	END INTERFACE
	3670	INTERFACE mpp_min
	3671	MODULE PROCEDURE mppmin_a_int, mppmin_int, mppmin_a_real, mppmin_real
	3672	END INTERFACE
[1344]	3673	INTERFACE mpp_minloc
	3674	MODULE PROCEDURE mpp_minloc2d ,mpp_minloc3d
	3675	END INTERFACE
	3676	INTERFACE mpp_maxloc
	3677	MODULE PROCEDURE mpp_maxloc2d ,mpp_maxloc3d
	3678	END INTERFACE
[3]	3679
[13]	3680	LOGICAL, PUBLIC, PARAMETER :: lk_mpp = .FALSE. !: mpp flag
[4147]	3681	LOGICAL, PUBLIC :: ln_nnogather !: namelist control of northfold comms (needed here in case "key_mpp_mpi" is not used)
[869]	3682	INTEGER :: ncomm_ice
[5412]	3683	INTEGER, PUBLIC :: mpi_comm_opa ! opa local communicator
[2715]	3684	!!----------------------------------------------------------------------
[13]	3685	CONTAINS
[3]	3686
[2715]	3687	INTEGER FUNCTION lib_mpp_alloc(kumout) ! Dummy function
	3688	INTEGER, INTENT(in) :: kumout
	3689	lib_mpp_alloc = 0
	3690	END FUNCTION lib_mpp_alloc
	3691
[5407]	3692	FUNCTION mynode( ldtxt, ldname, kumnam_ref, knumnam_cfg, kumond , kstop, localComm ) RESULT (function_value)
[1579]	3693	INTEGER, OPTIONAL , INTENT(in ) :: localComm
[3764]	3694	CHARACTER(len=*),DIMENSION(:) :: ldtxt
[5407]	3695	CHARACTER(len=*) :: ldname
[4314]	3696	INTEGER :: kumnam_ref, knumnam_cfg , kumond , kstop
[5412]	3697	IF( PRESENT( localComm ) ) mpi_comm_opa = localComm
	3698	function_value = 0
[1579]	3699	IF( .FALSE. ) ldtxt(:) = 'never done'
[5407]	3700	CALL ctl_opn( kumond, TRIM(ldname), 'UNKNOWN', 'FORMATTED', 'SEQUENTIAL', -1, 6, .FALSE. , 1 )
[13]	3701	END FUNCTION mynode
[3]	3702
[13]	3703	SUBROUTINE mppsync ! Dummy routine
	3704	END SUBROUTINE mppsync
[3]	3705
[869]	3706	SUBROUTINE mpp_sum_as( parr, kdim, kcom ) ! Dummy routine
[13]	3707	REAL , DIMENSION(:) :: parr
	3708	INTEGER :: kdim
[3764]	3709	INTEGER, OPTIONAL :: kcom
[869]	3710	WRITE(,) 'mpp_sum_as: You should not have seen this print! error?', kdim, parr(1), kcom
[13]	3711	END SUBROUTINE mpp_sum_as
[3]	3712
[869]	3713	SUBROUTINE mpp_sum_a2s( parr, kdim, kcom ) ! Dummy routine
[13]	3714	REAL , DIMENSION(:,:) :: parr
	3715	INTEGER :: kdim
[3764]	3716	INTEGER, OPTIONAL :: kcom
[869]	3717	WRITE(,) 'mpp_sum_a2s: You should not have seen this print! error?', kdim, parr(1,1), kcom
[13]	3718	END SUBROUTINE mpp_sum_a2s
[3]	3719
[869]	3720	SUBROUTINE mpp_sum_ai( karr, kdim, kcom ) ! Dummy routine
[13]	3721	INTEGER, DIMENSION(:) :: karr
	3722	INTEGER :: kdim
[3764]	3723	INTEGER, OPTIONAL :: kcom
[869]	3724	WRITE(,) 'mpp_sum_ai: You should not have seen this print! error?', kdim, karr(1), kcom
[13]	3725	END SUBROUTINE mpp_sum_ai
[3]	3726
[869]	3727	SUBROUTINE mpp_sum_s( psca, kcom ) ! Dummy routine
[13]	3728	REAL :: psca
[3764]	3729	INTEGER, OPTIONAL :: kcom
[869]	3730	WRITE(,) 'mpp_sum_s: You should not have seen this print! error?', psca, kcom
[13]	3731	END SUBROUTINE mpp_sum_s
[2480]	3732
[869]	3733	SUBROUTINE mpp_sum_i( kint, kcom ) ! Dummy routine
[13]	3734	integer :: kint
[3764]	3735	INTEGER, OPTIONAL :: kcom
[869]	3736	WRITE(,) 'mpp_sum_i: You should not have seen this print! error?', kint, kcom
[13]	3737	END SUBROUTINE mpp_sum_i
	3738
[3294]	3739	SUBROUTINE mppsum_realdd( ytab, kcom )
	3740	COMPLEX(wp), INTENT(inout) :: ytab ! input scalar
	3741	INTEGER , INTENT( in ), OPTIONAL :: kcom
	3742	WRITE(,) 'mppsum_realdd: You should not have seen this print! error?', ytab
	3743	END SUBROUTINE mppsum_realdd
[3764]	3744
[3294]	3745	SUBROUTINE mppsum_a_realdd( ytab, kdim, kcom )
	3746	INTEGER , INTENT( in ) :: kdim ! size of ytab
	3747	COMPLEX(wp), DIMENSION(kdim), INTENT( inout ) :: ytab ! input array
	3748	INTEGER , INTENT( in ), OPTIONAL :: kcom
	3749	WRITE(,) 'mppsum_a_realdd: You should not have seen this print! error?', kdim, ytab(1), kcom
	3750	END SUBROUTINE mppsum_a_realdd
	3751
[869]	3752	SUBROUTINE mppmax_a_real( parr, kdim, kcom )
[13]	3753	REAL , DIMENSION(:) :: parr
	3754	INTEGER :: kdim
[3764]	3755	INTEGER, OPTIONAL :: kcom
[869]	3756	WRITE(,) 'mppmax_a_real: You should not have seen this print! error?', kdim, parr(1), kcom
[13]	3757	END SUBROUTINE mppmax_a_real
	3758
[869]	3759	SUBROUTINE mppmax_real( psca, kcom )
[13]	3760	REAL :: psca
[3764]	3761	INTEGER, OPTIONAL :: kcom
[869]	3762	WRITE(,) 'mppmax_real: You should not have seen this print! error?', psca, kcom
[13]	3763	END SUBROUTINE mppmax_real
	3764
[869]	3765	SUBROUTINE mppmin_a_real( parr, kdim, kcom )
[13]	3766	REAL , DIMENSION(:) :: parr
	3767	INTEGER :: kdim
[3764]	3768	INTEGER, OPTIONAL :: kcom
[869]	3769	WRITE(,) 'mppmin_a_real: You should not have seen this print! error?', kdim, parr(1), kcom
[13]	3770	END SUBROUTINE mppmin_a_real
	3771
[869]	3772	SUBROUTINE mppmin_real( psca, kcom )
[13]	3773	REAL :: psca
[3764]	3774	INTEGER, OPTIONAL :: kcom
[869]	3775	WRITE(,) 'mppmin_real: You should not have seen this print! error?', psca, kcom
[13]	3776	END SUBROUTINE mppmin_real
	3777
[869]	3778	SUBROUTINE mppmax_a_int( karr, kdim ,kcom)
[681]	3779	INTEGER, DIMENSION(:) :: karr
	3780	INTEGER :: kdim
[3764]	3781	INTEGER, OPTIONAL :: kcom
[888]	3782	WRITE(,) 'mppmax_a_int: You should not have seen this print! error?', kdim, karr(1), kcom
[681]	3783	END SUBROUTINE mppmax_a_int
	3784
[869]	3785	SUBROUTINE mppmax_int( kint, kcom)
[681]	3786	INTEGER :: kint
[3764]	3787	INTEGER, OPTIONAL :: kcom
[869]	3788	WRITE(,) 'mppmax_int: You should not have seen this print! error?', kint, kcom
[681]	3789	END SUBROUTINE mppmax_int
	3790
[869]	3791	SUBROUTINE mppmin_a_int( karr, kdim, kcom )
[13]	3792	INTEGER, DIMENSION(:) :: karr
	3793	INTEGER :: kdim
[3764]	3794	INTEGER, OPTIONAL :: kcom
[869]	3795	WRITE(,) 'mppmin_a_int: You should not have seen this print! error?', kdim, karr(1), kcom
[13]	3796	END SUBROUTINE mppmin_a_int
	3797
[869]	3798	SUBROUTINE mppmin_int( kint, kcom )
[13]	3799	INTEGER :: kint
[3764]	3800	INTEGER, OPTIONAL :: kcom
[869]	3801	WRITE(,) 'mppmin_int: You should not have seen this print! error?', kint, kcom
[13]	3802	END SUBROUTINE mppmin_int
	3803
[1344]	3804	SUBROUTINE mpp_minloc2d( ptab, pmask, pmin, ki, kj )
[181]	3805	REAL :: pmin
	3806	REAL , DIMENSION (:,:) :: ptab, pmask
	3807	INTEGER :: ki, kj
[1528]	3808	WRITE(,) 'mpp_minloc2d: You should not have seen this print! error?', pmin, ki, kj, ptab(1,1), pmask(1,1)
[181]	3809	END SUBROUTINE mpp_minloc2d
	3810
[1344]	3811	SUBROUTINE mpp_minloc3d( ptab, pmask, pmin, ki, kj, kk )
[181]	3812	REAL :: pmin
	3813	REAL , DIMENSION (:,:,:) :: ptab, pmask
	3814	INTEGER :: ki, kj, kk
[1528]	3815	WRITE(,) 'mpp_minloc3d: You should not have seen this print! error?', pmin, ki, kj, kk, ptab(1,1,1), pmask(1,1,1)
[181]	3816	END SUBROUTINE mpp_minloc3d
	3817
[1344]	3818	SUBROUTINE mpp_maxloc2d( ptab, pmask, pmax, ki, kj )
[181]	3819	REAL :: pmax
	3820	REAL , DIMENSION (:,:) :: ptab, pmask
	3821	INTEGER :: ki, kj
[1528]	3822	WRITE(,) 'mpp_maxloc2d: You should not have seen this print! error?', pmax, ki, kj, ptab(1,1), pmask(1,1)
[181]	3823	END SUBROUTINE mpp_maxloc2d
	3824
[1344]	3825	SUBROUTINE mpp_maxloc3d( ptab, pmask, pmax, ki, kj, kk )
[181]	3826	REAL :: pmax
	3827	REAL , DIMENSION (:,:,:) :: ptab, pmask
	3828	INTEGER :: ki, kj, kk
[1528]	3829	WRITE(,) 'mpp_maxloc3d: You should not have seen this print! error?', pmax, ki, kj, kk, ptab(1,1,1), pmask(1,1,1)
[181]	3830	END SUBROUTINE mpp_maxloc3d
	3831
[51]	3832	SUBROUTINE mppstop
[3799]	3833	STOP ! non MPP case, just stop the run
[51]	3834	END SUBROUTINE mppstop
	3835
[2715]	3836	SUBROUTINE mpp_ini_ice( kcom, knum )
	3837	INTEGER :: kcom, knum
	3838	WRITE(,) 'mpp_ini_ice: You should not have seen this print! error?', kcom, knum
[888]	3839	END SUBROUTINE mpp_ini_ice
[869]	3840
[2715]	3841	SUBROUTINE mpp_ini_znl( knum )
	3842	INTEGER :: knum
	3843	WRITE(,) 'mpp_ini_znl: You should not have seen this print! error?', knum
[1345]	3844	END SUBROUTINE mpp_ini_znl
	3845
[1344]	3846	SUBROUTINE mpp_comm_free( kcom )
[869]	3847	INTEGER :: kcom
[1344]	3848	WRITE(,) 'mpp_comm_free: You should not have seen this print! error?', kcom
[869]	3849	END SUBROUTINE mpp_comm_free
[3]	3850	#endif
[2715]	3851
[13]	3852	!!----------------------------------------------------------------------
[4147]	3853	!! All cases: ctl_stop, ctl_warn, get_unit, ctl_opn, ctl_nam routines
[2715]	3854	!!----------------------------------------------------------------------
	3855
	3856	SUBROUTINE ctl_stop( cd1, cd2, cd3, cd4, cd5 , &
	3857	& cd6, cd7, cd8, cd9, cd10 )
	3858	!!----------------------------------------------------------------------
	3859	!! * ROUTINE stop_opa *
	3860	!!
[3764]	3861	!! ** Purpose : print in ocean.outpput file a error message and
[2715]	3862	!! increment the error number (nstop) by one.
	3863	!!----------------------------------------------------------------------
	3864	CHARACTER(len=*), INTENT(in), OPTIONAL :: cd1, cd2, cd3, cd4, cd5
	3865	CHARACTER(len=*), INTENT(in), OPTIONAL :: cd6, cd7, cd8, cd9, cd10
	3866	!!----------------------------------------------------------------------
	3867	!
[3764]	3868	nstop = nstop + 1
[2715]	3869	IF(lwp) THEN
	3870	WRITE(numout,cform_err)
	3871	IF( PRESENT(cd1 ) ) WRITE(numout,*) cd1
	3872	IF( PRESENT(cd2 ) ) WRITE(numout,*) cd2
	3873	IF( PRESENT(cd3 ) ) WRITE(numout,*) cd3
	3874	IF( PRESENT(cd4 ) ) WRITE(numout,*) cd4
	3875	IF( PRESENT(cd5 ) ) WRITE(numout,*) cd5
	3876	IF( PRESENT(cd6 ) ) WRITE(numout,*) cd6
	3877	IF( PRESENT(cd7 ) ) WRITE(numout,*) cd7
	3878	IF( PRESENT(cd8 ) ) WRITE(numout,*) cd8
	3879	IF( PRESENT(cd9 ) ) WRITE(numout,*) cd9
	3880	IF( PRESENT(cd10) ) WRITE(numout,*) cd10
	3881	ENDIF
	3882	CALL FLUSH(numout )
	3883	IF( numstp /= -1 ) CALL FLUSH(numstp )
	3884	IF( numsol /= -1 ) CALL FLUSH(numsol )
	3885	IF( numevo_ice /= -1 ) CALL FLUSH(numevo_ice)
	3886	!
	3887	IF( cd1 == 'STOP' ) THEN
	3888	IF(lwp) WRITE(numout,*) 'huge E-R-R-O-R : immediate stop'
	3889	CALL mppstop()
	3890	ENDIF
	3891	!
	3892	END SUBROUTINE ctl_stop
	3893
	3894
	3895	SUBROUTINE ctl_warn( cd1, cd2, cd3, cd4, cd5, &
	3896	& cd6, cd7, cd8, cd9, cd10 )
	3897	!!----------------------------------------------------------------------
	3898	!! * ROUTINE stop_warn *
	3899	!!
[3764]	3900	!! ** Purpose : print in ocean.outpput file a error message and
[2715]	3901	!! increment the warning number (nwarn) by one.
	3902	!!----------------------------------------------------------------------
	3903	CHARACTER(len=*), INTENT(in), OPTIONAL :: cd1, cd2, cd3, cd4, cd5
	3904	CHARACTER(len=*), INTENT(in), OPTIONAL :: cd6, cd7, cd8, cd9, cd10
	3905	!!----------------------------------------------------------------------
[3764]	3906	!
	3907	nwarn = nwarn + 1
[2715]	3908	IF(lwp) THEN
	3909	WRITE(numout,cform_war)
	3910	IF( PRESENT(cd1 ) ) WRITE(numout,*) cd1
	3911	IF( PRESENT(cd2 ) ) WRITE(numout,*) cd2
	3912	IF( PRESENT(cd3 ) ) WRITE(numout,*) cd3
	3913	IF( PRESENT(cd4 ) ) WRITE(numout,*) cd4
	3914	IF( PRESENT(cd5 ) ) WRITE(numout,*) cd5
	3915	IF( PRESENT(cd6 ) ) WRITE(numout,*) cd6
	3916	IF( PRESENT(cd7 ) ) WRITE(numout,*) cd7
	3917	IF( PRESENT(cd8 ) ) WRITE(numout,*) cd8
	3918	IF( PRESENT(cd9 ) ) WRITE(numout,*) cd9
	3919	IF( PRESENT(cd10) ) WRITE(numout,*) cd10
	3920	ENDIF
	3921	CALL FLUSH(numout)
	3922	!
	3923	END SUBROUTINE ctl_warn
	3924
	3925
	3926	SUBROUTINE ctl_opn( knum, cdfile, cdstat, cdform, cdacce, klengh, kout, ldwp, karea )
	3927	!!----------------------------------------------------------------------
	3928	!! * ROUTINE ctl_opn *
	3929	!!
	3930	!! ** Purpose : Open file and check if required file is available.
	3931	!!
	3932	!! ** Method : Fortan open
	3933	!!----------------------------------------------------------------------
	3934	INTEGER , INTENT( out) :: knum ! logical unit to open
	3935	CHARACTER(len=*) , INTENT(in ) :: cdfile ! file name to open
	3936	CHARACTER(len=*) , INTENT(in ) :: cdstat ! disposition specifier
	3937	CHARACTER(len=*) , INTENT(in ) :: cdform ! formatting specifier
	3938	CHARACTER(len=*) , INTENT(in ) :: cdacce ! access specifier
	3939	INTEGER , INTENT(in ) :: klengh ! record length
	3940	INTEGER , INTENT(in ) :: kout ! number of logical units for write
	3941	LOGICAL , INTENT(in ) :: ldwp ! boolean term for print
	3942	INTEGER, OPTIONAL, INTENT(in ) :: karea ! proc number
	3943	!!
	3944	CHARACTER(len=80) :: clfile
	3945	INTEGER :: iost
	3946	!!----------------------------------------------------------------------
	3947
	3948	! adapt filename
	3949	! ----------------
	3950	clfile = TRIM(cdfile)
	3951	IF( PRESENT( karea ) ) THEN
	3952	IF( karea > 1 ) WRITE(clfile, "(a,'_',i4.4)") TRIM(clfile), karea-1
	3953	ENDIF
	3954	#if defined key_agrif
	3955	IF( .NOT. Agrif_Root() ) clfile = TRIM(Agrif_CFixed())//'_'//TRIM(clfile)
	3956	knum=Agrif_Get_Unit()
	3957	#else
	3958	knum=get_unit()
	3959	#endif
	3960
	3961	iost=0
	3962	IF( cdacce(1:6) == 'DIRECT' ) THEN
	3963	OPEN( UNIT=knum, FILE=clfile, FORM=cdform, ACCESS=cdacce, STATUS=cdstat, RECL=klengh, ERR=100, IOSTAT=iost )
	3964	ELSE
	3965	OPEN( UNIT=knum, FILE=clfile, FORM=cdform, ACCESS=cdacce, STATUS=cdstat , ERR=100, IOSTAT=iost )
	3966	ENDIF
	3967	IF( iost == 0 ) THEN
	3968	IF(ldwp) THEN
	3969	WRITE(kout,*) ' file : ', clfile,' open ok'
	3970	WRITE(kout,*) ' unit = ', knum
	3971	WRITE(kout,*) ' status = ', cdstat
	3972	WRITE(kout,*) ' form = ', cdform
	3973	WRITE(kout,*) ' access = ', cdacce
	3974	WRITE(kout,*)
	3975	ENDIF
	3976	ENDIF
	3977	100 CONTINUE
	3978	IF( iost /= 0 ) THEN
	3979	IF(ldwp) THEN
	3980	WRITE(kout,*)
	3981	WRITE(kout,*) ' ===>>>> : bad opening file: ', clfile
	3982	WRITE(kout,*) ' ======= === '
	3983	WRITE(kout,*) ' unit = ', knum
	3984	WRITE(kout,*) ' status = ', cdstat
	3985	WRITE(kout,*) ' form = ', cdform
	3986	WRITE(kout,*) ' access = ', cdacce
	3987	WRITE(kout,*) ' iostat = ', iost
	3988	WRITE(kout,*) ' we stop. verify the file '
	3989	WRITE(kout,*)
	3990	ENDIF
	3991	STOP 'ctl_opn bad opening'
	3992	ENDIF
[3764]	3993
[2715]	3994	END SUBROUTINE ctl_opn
	3995
[4147]	3996	SUBROUTINE ctl_nam ( kios, cdnam, ldwp )
	3997	!!----------------------------------------------------------------------
	3998	!! * ROUTINE ctl_nam *
	3999	!!
	4000	!! ** Purpose : Informations when error while reading a namelist
	4001	!!
	4002	!! ** Method : Fortan open
	4003	!!----------------------------------------------------------------------
	4004	INTEGER , INTENT(inout) :: kios ! IO status after reading the namelist
	4005	CHARACTER(len=*) , INTENT(in ) :: cdnam ! group name of namelist for which error occurs
[7531]	4006	CHARACTER(len=5) :: clios ! string to convert iostat in character for print
[4147]	4007	LOGICAL , INTENT(in ) :: ldwp ! boolean term for print
	4008	!!----------------------------------------------------------------------
[2715]	4009
[4147]	4010	!
	4011	! ----------------
[7531]	4012	WRITE (clios, '(I5.0)') kios
[4147]	4013	IF( kios < 0 ) THEN
	4014	CALL ctl_warn( 'W A R N I N G: end of record or file while reading namelist ' &
	4015	& // TRIM(cdnam) // ' iostat = ' // TRIM(clios) )
	4016	ENDIF
	4017
	4018	IF( kios > 0 ) THEN
	4019	CALL ctl_stop( 'E R R O R : misspelled variable in namelist ' &
	4020	& // TRIM(cdnam) // ' iostat = ' // TRIM(clios) )
	4021	ENDIF
	4022	kios = 0
	4023	RETURN
	4024
	4025	END SUBROUTINE ctl_nam
	4026
[2715]	4027	INTEGER FUNCTION get_unit()
	4028	!!----------------------------------------------------------------------
	4029	!! * FUNCTION get_unit *
	4030	!!
	4031	!! ** Purpose : return the index of an unused logical unit
	4032	!!----------------------------------------------------------------------
[3764]	4033	LOGICAL :: llopn
[2715]	4034	!!----------------------------------------------------------------------
	4035	!
	4036	get_unit = 15 ! choose a unit that is big enough then it is not already used in NEMO
	4037	llopn = .TRUE.
	4038	DO WHILE( (get_unit < 998) .AND. llopn )
	4039	get_unit = get_unit + 1
	4040	INQUIRE( unit = get_unit, opened = llopn )
	4041	END DO
	4042	IF( (get_unit == 999) .AND. llopn ) THEN
	4043	CALL ctl_stop( 'get_unit: All logical units until 999 are used...' )
	4044	get_unit = -1
	4045	ENDIF
	4046	!
	4047	END FUNCTION get_unit
	4048
	4049	!!----------------------------------------------------------------------
[3]	4050	END MODULE lib_mpp

Note: See TracBrowser for help on using the repository browser.

Download in other formats: