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lib_mpp.F90 in NEMO/branches/2018/dev_r10164_HPC09_ESIWACE_PREP_MERGE/src/OCE/LBC – NEMO

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source: NEMO/branches/2018/dev_r10164_HPC09_ESIWACE_PREP_MERGE/src/OCE/LBC/lib_mpp.F90 @ 10337

Last change on this file since 10337 was 10337, checked in by smasson, 5 years ago
dev_r10164_HPC09_ESIWACE_PREP_MERGE: action 3d: force safe NPF (2 lines update) for field recieved from oasis, see #2133
Property svn:keywords set to `Id`
File size: 78.8 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
[9019]	10	!! NEMO 1.0 ! 2003 (J.M. Molines, G. Madec) F90, free form
[1344]	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
[9019]	21	!! 3.5 ! 2012 (S.Mocavero, I. Epicoco) Add mpp_lnk_bdy_3d/2d routines to optimize the BDY comm.
	22	!! 3.5 ! 2013 (C. Ethe, G. Madec) message passing arrays as local variables
[6140]	23	!! 3.5 ! 2013 (S.Mocavero, I.Epicoco - CMCC) north fold optimizations
[9019]	24	!! 3.6 ! 2015 (O. Tintó and M. Castrillo - BSC) Added '_multiple' case for 2D lbc and max
	25	!! 4.0 ! 2017 (G. Madec) automatique allocation of array argument (use any 3rd dimension)
	26	!! - ! 2017 (G. Madec) create generic.h90 files to generate all lbc and north fold routines
[13]	27	!!----------------------------------------------------------------------
[2715]	28
	29	!!----------------------------------------------------------------------
[6140]	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.
	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)
[4990]	43	!! mpp_lnk_icb : interface for message passing of 2d arrays with extra halo for icebergs (mpp_lnk_2d_icb)
[6140]	44	!! mpprecv :
[9019]	45	!! mppsend :
[2715]	46	!! mppscatter :
	47	!! mppgather :
	48	!! mpp_min : generic interface for mppmin_int , mppmin_a_int , mppmin_real, mppmin_a_real
	49	!! mpp_max : generic interface for mppmax_int , mppmax_a_int , mppmax_real, mppmax_a_real
	50	!! mpp_sum : generic interface for mppsum_int , mppsum_a_int , mppsum_real, mppsum_a_real
	51	!! mpp_minloc :
	52	!! mpp_maxloc :
	53	!! mppsync :
	54	!! mppstop :
[1344]	55	!! mpp_ini_north : initialisation of north fold
[9019]	56	!! mpp_lbc_north_icb : alternative to mpp_nfd for extra outer halo with icebergs
[13]	57	!!----------------------------------------------------------------------
[3764]	58	USE dom_oce ! ocean space and time domain
[2715]	59	USE lbcnfd ! north fold treatment
	60	USE in_out_manager ! I/O manager
[3]	61
[13]	62	IMPLICIT NONE
[415]	63	PRIVATE
[9019]	64
	65	INTERFACE mpp_nfd
	66	MODULE PROCEDURE mpp_nfd_2d , mpp_nfd_3d , mpp_nfd_4d
	67	MODULE PROCEDURE mpp_nfd_2d_ptr, mpp_nfd_3d_ptr, mpp_nfd_4d_ptr
	68	END INTERFACE
	69
	70	! Interface associated to the mpp_lnk_... routines is defined in lbclnk
	71	PUBLIC mpp_lnk_2d , mpp_lnk_3d , mpp_lnk_4d
	72	PUBLIC mpp_lnk_2d_ptr, mpp_lnk_3d_ptr, mpp_lnk_4d_ptr
	73	!
	74	!!gm this should be useless
	75	PUBLIC mpp_nfd_2d , mpp_nfd_3d , mpp_nfd_4d
	76	PUBLIC mpp_nfd_2d_ptr, mpp_nfd_3d_ptr, mpp_nfd_4d_ptr
	77	!!gm end
	78	!
[4147]	79	PUBLIC ctl_stop, ctl_warn, get_unit, ctl_opn, ctl_nam
[1344]	80	PUBLIC mynode, mppstop, mppsync, mpp_comm_free
[9019]	81	PUBLIC mpp_ini_north
	82	PUBLIC mpp_lnk_2d_icb
	83	PUBLIC mpp_lbc_north_icb
[1344]	84	PUBLIC mpp_min, mpp_max, mpp_sum, mpp_minloc, mpp_maxloc
[10292]	85	PUBLIC mpp_ilor
[3294]	86	PUBLIC mppscatter, mppgather
[10180]	87	PUBLIC mpp_ini_znl
[3764]	88	PUBLIC mppsend, mpprecv ! needed by TAM and ICB routines
[9890]	89	PUBLIC mpp_lnk_bdy_2d, mpp_lnk_bdy_3d, mpp_lnk_bdy_4d
[5429]	90
[13]	91	!! * Interfaces
	92	!! define generic interface for these routine as they are called sometimes
[1344]	93	!! with scalar arguments instead of array arguments, which causes problems
	94	!! for the compilation on AIX system as well as NEC and SGI. Ok on COMPACQ
[13]	95	INTERFACE mpp_min
	96	MODULE PROCEDURE mppmin_a_int, mppmin_int, mppmin_a_real, mppmin_real
	97	END INTERFACE
	98	INTERFACE mpp_max
[681]	99	MODULE PROCEDURE mppmax_a_int, mppmax_int, mppmax_a_real, mppmax_real
[13]	100	END INTERFACE
	101	INTERFACE mpp_sum
[6140]	102	MODULE PROCEDURE mppsum_a_int, mppsum_int, mppsum_a_real, mppsum_real, &
[9019]	103	& mppsum_realdd, mppsum_a_realdd
[13]	104	END INTERFACE
[1344]	105	INTERFACE mpp_minloc
	106	MODULE PROCEDURE mpp_minloc2d ,mpp_minloc3d
	107	END INTERFACE
	108	INTERFACE mpp_maxloc
	109	MODULE PROCEDURE mpp_maxloc2d ,mpp_maxloc3d
	110	END INTERFACE
[6490]	111
[51]	112	!! ========================= !!
	113	!! MPI variable definition !!
	114	!! ========================= !!
[1629]	115	!$AGRIF_DO_NOT_TREAT
[2004]	116	INCLUDE 'mpif.h'
[1629]	117	!$AGRIF_END_DO_NOT_TREAT
[3764]	118
[1344]	119	LOGICAL, PUBLIC, PARAMETER :: lk_mpp = .TRUE. !: mpp flag
[3]	120
[1344]	121	INTEGER, PARAMETER :: nprocmax = 2**10 ! maximun dimension (required to be a power of 2)
[3764]	122
[10330]	123	INTEGER, PUBLIC :: mppsize ! number of process
	124	INTEGER, PUBLIC :: mpprank ! process number [ 0 - size-1 ]
[2363]	125	!$AGRIF_DO_NOT_TREAT
[9570]	126	INTEGER, PUBLIC :: mpi_comm_oce ! opa local communicator
[2363]	127	!$AGRIF_END_DO_NOT_TREAT
[3]	128
[2480]	129	INTEGER :: MPI_SUMDD
[1976]	130
[1345]	131	! variables used for zonal integration
	132	INTEGER, PUBLIC :: ncomm_znl !: communicator made by the processors on the same zonal average
[9019]	133	LOGICAL, PUBLIC :: l_znl_root !: True on the 'left'most processor on the same row
	134	INTEGER :: ngrp_znl ! group ID for the znl processors
	135	INTEGER :: ndim_rank_znl ! number of processors on the same zonal average
[2715]	136	INTEGER, DIMENSION(:), ALLOCATABLE, SAVE :: nrank_znl ! dimension ndim_rank_znl, number of the procs into the same znl domain
[3]	137
[3764]	138	! North fold condition in mpp_mpi with jpni > 1 (PUBLIC for TAM)
[9019]	139	INTEGER, PUBLIC :: ngrp_world !: group ID for the world processors
	140	INTEGER, PUBLIC :: ngrp_opa !: group ID for the opa processors
	141	INTEGER, PUBLIC :: ngrp_north !: group ID for the northern processors (to be fold)
	142	INTEGER, PUBLIC :: ncomm_north !: communicator made by the processors belonging to ngrp_north
	143	INTEGER, PUBLIC :: ndim_rank_north !: number of 'sea' processor in the northern line (can be /= jpni !)
	144	INTEGER, PUBLIC :: njmppmax !: value of njmpp for the processors of the northern line
	145	INTEGER, PUBLIC :: north_root !: number (in the comm_opa) of proc 0 in the northern comm
	146	INTEGER, PUBLIC, DIMENSION(:), ALLOCATABLE, SAVE :: nrank_north !: dimension ndim_rank_north
[3764]	147
[1344]	148	! Type of send : standard, buffered, immediate
[9019]	149	CHARACTER(len=1), PUBLIC :: cn_mpi_send !: type od mpi send/recieve (S=standard, B=bsend, I=isend)
	150	LOGICAL , PUBLIC :: l_isend = .FALSE. !: isend use indicator (T if cn_mpi_send='I')
	151	INTEGER , PUBLIC :: nn_buffer !: size of the buffer in case of mpi_bsend
[3764]	152
[10170]	153	! Communications summary report
[10297]	154	CHARACTER(len=128), DIMENSION(:), ALLOCATABLE :: crname_lbc !: names of lbc_lnk calling routines
	155	CHARACTER(len=128), DIMENSION(:), ALLOCATABLE :: crname_glb !: names of global comm calling routines
[10170]	156	INTEGER, PUBLIC :: ncom_stp = 0 !: copy of time step # istp
[10297]	157	INTEGER, PUBLIC :: ncom_fsbc = 1 !: copy of sbc time step # nn_fsbc
	158	INTEGER, PUBLIC :: ncom_dttrc = 1 !: copy of top time step # nn_dttrc
[10314]	159	INTEGER, PUBLIC :: ncom_freq !: frequency of comm diagnostic
[10170]	160	INTEGER, PUBLIC , DIMENSION(:,:), ALLOCATABLE :: ncomm_sequence !: size of communicated arrays (halos)
[10314]	161	INTEGER, PARAMETER, PUBLIC :: ncom_rec_max = 2000 !: max number of communication record
[10297]	162	INTEGER, PUBLIC :: n_sequence_lbc = 0 !: # of communicated arraysvia lbc
	163	INTEGER, PUBLIC :: n_sequence_glb = 0 !: # of global communications
	164	INTEGER, PUBLIC :: numcom = -1 !: logical unit for communicaton report
[10337]	165	INTEGER, PUBLIC :: l_full_nf_update = .FALSE. !: logical for a full (2lines) update of bc at North fold report
[10297]	166
[10172]	167	! timing summary report
[10300]	168	REAL(wp), DIMENSION(2), PUBLIC :: waiting_time = 0._wp
	169	REAL(wp) , PUBLIC :: compute_time = 0._wp, elapsed_time = 0._wp
[10172]	170
[9019]	171	REAL(wp), DIMENSION(:), ALLOCATABLE, SAVE :: tampon ! buffer in case of bsend
[3]	172
[9019]	173	LOGICAL, PUBLIC :: ln_nnogather !: namelist control of northfold comms
	174	LOGICAL, PUBLIC :: l_north_nogather = .FALSE. !: internal control of northfold comms
	175
[51]	176	!!----------------------------------------------------------------------
[9598]	177	!! NEMO/OCE 4.0 , NEMO Consortium (2018)
[888]	178	!! $Id$
[10068]	179	!! Software governed by the CeCILL license (see ./LICENSE)
[1344]	180	!!----------------------------------------------------------------------
[3]	181	CONTAINS
	182
[9019]	183	FUNCTION mynode( ldtxt, ldname, kumnam_ref, kumnam_cfg, kumond, kstop, localComm )
[2715]	184	!!----------------------------------------------------------------------
[51]	185	!! * routine mynode *
[3764]	186	!!
[51]	187	!! ** Purpose : Find processor unit
	188	!!----------------------------------------------------------------------
[6140]	189	CHARACTER(len=*),DIMENSION(:), INTENT( out) :: ldtxt !
	190	CHARACTER(len=*) , INTENT(in ) :: ldname !
	191	INTEGER , INTENT(in ) :: kumnam_ref ! logical unit for reference namelist
	192	INTEGER , INTENT(in ) :: kumnam_cfg ! logical unit for configuration namelist
	193	INTEGER , INTENT(inout) :: kumond ! logical unit for namelist output
	194	INTEGER , INTENT(inout) :: kstop ! stop indicator
	195	INTEGER , OPTIONAL , INTENT(in ) :: localComm !
[2715]	196	!
[4147]	197	INTEGER :: mynode, ierr, code, ji, ii, ios
[532]	198	LOGICAL :: mpi_was_called
[2715]	199	!
[3294]	200	NAMELIST/nammpp/ cn_mpi_send, nn_buffer, jpni, jpnj, jpnij, ln_nnogather
[51]	201	!!----------------------------------------------------------------------
[1344]	202	!
[2481]	203	ii = 1
[6140]	204	WRITE(ldtxt(ii),*) ; ii = ii + 1
	205	WRITE(ldtxt(ii),*) 'mynode : mpi initialisation' ; ii = ii + 1
	206	WRITE(ldtxt(ii),*) '~~~~~~ ' ; ii = ii + 1
[1344]	207	!
[4147]	208	REWIND( kumnam_ref ) ! Namelist nammpp in reference namelist: mpi variables
	209	READ ( kumnam_ref, nammpp, IOSTAT = ios, ERR = 901)
[9168]	210	901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nammpp in reference namelist', lwp )
[9019]	211	!
[4147]	212	REWIND( kumnam_cfg ) ! Namelist nammpp in configuration namelist: mpi variables
	213	READ ( kumnam_cfg, nammpp, IOSTAT = ios, ERR = 902 )
[9168]	214	902 IF( ios > 0 ) CALL ctl_nam ( ios , 'nammpp in configuration namelist', lwp )
[9019]	215	!
[1344]	216	! ! control print
[6140]	217	WRITE(ldtxt(ii),*) ' Namelist nammpp' ; ii = ii + 1
	218	WRITE(ldtxt(ii),*) ' mpi send type cn_mpi_send = ', cn_mpi_send ; ii = ii + 1
	219	WRITE(ldtxt(ii),*) ' size exported buffer nn_buffer = ', nn_buffer,' bytes'; ii = ii + 1
[9019]	220	!
	221	IF( jpni < 1 .OR. jpnj < 1 ) THEN
[6140]	222	WRITE(ldtxt(ii),*) ' jpni, jpnj and jpnij will be calculated automatically' ; ii = ii + 1
[2715]	223	ELSE
[6140]	224	WRITE(ldtxt(ii),*) ' processor grid extent in i jpni = ',jpni ; ii = ii + 1
	225	WRITE(ldtxt(ii),*) ' processor grid extent in j jpnj = ',jpnj ; ii = ii + 1
[9019]	226	ENDIF
[2715]	227
[3294]	228	WRITE(ldtxt(ii),*) ' avoid use of mpi_allgather at the north fold ln_nnogather = ', ln_nnogather ; ii = ii + 1
	229
[2480]	230	CALL mpi_initialized ( mpi_was_called, code )
	231	IF( code /= MPI_SUCCESS ) THEN
[3764]	232	DO ji = 1, SIZE(ldtxt)
[2481]	233	IF( TRIM(ldtxt(ji)) /= '' ) WRITE(,) ldtxt(ji) ! control print of mynode
[3764]	234	END DO
[2480]	235	WRITE(*, cform_err)
	236	WRITE(, ) 'lib_mpp: Error in routine mpi_initialized'
	237	CALL mpi_abort( mpi_comm_world, code, ierr )
	238	ENDIF
[415]	239
[2480]	240	IF( mpi_was_called ) THEN
	241	!
	242	SELECT CASE ( cn_mpi_send )
	243	CASE ( 'S' ) ! Standard mpi send (blocking)
[6140]	244	WRITE(ldtxt(ii),*) ' Standard blocking mpi send (send)' ; ii = ii + 1
[2480]	245	CASE ( 'B' ) ! Buffer mpi send (blocking)
[6140]	246	WRITE(ldtxt(ii),*) ' Buffer blocking mpi send (bsend)' ; ii = ii + 1
[9570]	247	IF( Agrif_Root() ) CALL mpi_init_oce( ldtxt, ii, ierr )
[2480]	248	CASE ( 'I' ) ! Immediate mpi send (non-blocking send)
[6140]	249	WRITE(ldtxt(ii),*) ' Immediate non-blocking send (isend)' ; ii = ii + 1
[2480]	250	l_isend = .TRUE.
	251	CASE DEFAULT
[6140]	252	WRITE(ldtxt(ii),cform_err) ; ii = ii + 1
	253	WRITE(ldtxt(ii),*) ' bad value for cn_mpi_send = ', cn_mpi_send ; ii = ii + 1
[2715]	254	kstop = kstop + 1
[2480]	255	END SELECT
[9019]	256	!
	257	ELSEIF ( PRESENT(localComm) .AND. .NOT. mpi_was_called ) THEN
[6140]	258	WRITE(ldtxt(ii),*) ' lib_mpp: You cannot provide a local communicator ' ; ii = ii + 1
	259	WRITE(ldtxt(ii),*) ' without calling MPI_Init before ! ' ; ii = ii + 1
[2715]	260	kstop = kstop + 1
[532]	261	ELSE
[1601]	262	SELECT CASE ( cn_mpi_send )
[524]	263	CASE ( 'S' ) ! Standard mpi send (blocking)
[6140]	264	WRITE(ldtxt(ii),*) ' Standard blocking mpi send (send)' ; ii = ii + 1
[2480]	265	CALL mpi_init( ierr )
[524]	266	CASE ( 'B' ) ! Buffer mpi send (blocking)
[6140]	267	WRITE(ldtxt(ii),*) ' Buffer blocking mpi send (bsend)' ; ii = ii + 1
[9570]	268	IF( Agrif_Root() ) CALL mpi_init_oce( ldtxt, ii, ierr )
[524]	269	CASE ( 'I' ) ! Immediate mpi send (non-blocking send)
[6140]	270	WRITE(ldtxt(ii),*) ' Immediate non-blocking send (isend)' ; ii = ii + 1
[524]	271	l_isend = .TRUE.
[2480]	272	CALL mpi_init( ierr )
[524]	273	CASE DEFAULT
[6140]	274	WRITE(ldtxt(ii),cform_err) ; ii = ii + 1
	275	WRITE(ldtxt(ii),*) ' bad value for cn_mpi_send = ', cn_mpi_send ; ii = ii + 1
[2715]	276	kstop = kstop + 1
[524]	277	END SELECT
[2480]	278	!
[415]	279	ENDIF
[570]	280
[3764]	281	IF( PRESENT(localComm) ) THEN
[2480]	282	IF( Agrif_Root() ) THEN
[9570]	283	mpi_comm_oce = localComm
[2480]	284	ENDIF
	285	ELSE
[9570]	286	CALL mpi_comm_dup( mpi_comm_world, mpi_comm_oce, code)
[2480]	287	IF( code /= MPI_SUCCESS ) THEN
[3764]	288	DO ji = 1, SIZE(ldtxt)
[2481]	289	IF( TRIM(ldtxt(ji)) /= '' ) WRITE(,) ldtxt(ji) ! control print of mynode
	290	END DO
[2480]	291	WRITE(*, cform_err)
	292	WRITE(, ) ' lib_mpp: Error in routine mpi_comm_dup'
	293	CALL mpi_abort( mpi_comm_world, code, ierr )
	294	ENDIF
[3764]	295	ENDIF
[2480]	296
[5656]	297	#if defined key_agrif
[9019]	298	IF( Agrif_Root() ) THEN
[9570]	299	CALL Agrif_MPI_Init(mpi_comm_oce)
[5656]	300	ELSE
[9570]	301	CALL Agrif_MPI_set_grid_comm(mpi_comm_oce)
[5656]	302	ENDIF
	303	#endif
	304
[9570]	305	CALL mpi_comm_rank( mpi_comm_oce, mpprank, ierr )
	306	CALL mpi_comm_size( mpi_comm_oce, mppsize, ierr )
[629]	307	mynode = mpprank
[4624]	308
	309	IF( mynode == 0 ) THEN
[5407]	310	CALL ctl_opn( kumond, TRIM(ldname), 'UNKNOWN', 'FORMATTED', 'SEQUENTIAL', -1, 6, .FALSE. , 1 )
	311	WRITE(kumond, nammpp)
[4624]	312	ENDIF
[3764]	313	!
[1976]	314	CALL MPI_OP_CREATE(DDPDD_MPI, .TRUE., MPI_SUMDD, ierr)
	315	!
[51]	316	END FUNCTION mynode
[3]	317
[9019]	318	!!----------------------------------------------------------------------
	319	!! * routine mpp_lnk_(2,3,4)d *
	320	!!
	321	!! * Argument : dummy argument use in mpp_lnk_... routines
	322	!! ptab : array or pointer of arrays on which the boundary condition is applied
	323	!! cd_nat : nature of array grid-points
	324	!! psgn : sign used across the north fold boundary
	325	!! kfld : optional, number of pt3d arrays
	326	!! cd_mpp : optional, fill the overlap area only
	327	!! pval : optional, background value (used at closed boundaries)
	328	!!----------------------------------------------------------------------
	329	!
	330	! !== 2D array and array of 2D pointer ==!
	331	!
	332	# define DIM_2d
	333	# define ROUTINE_LNK mpp_lnk_2d
	334	# include "mpp_lnk_generic.h90"
	335	# undef ROUTINE_LNK
	336	# define MULTI
	337	# define ROUTINE_LNK mpp_lnk_2d_ptr
	338	# include "mpp_lnk_generic.h90"
	339	# undef ROUTINE_LNK
	340	# undef MULTI
	341	# undef DIM_2d
	342	!
	343	! !== 3D array and array of 3D pointer ==!
	344	!
	345	# define DIM_3d
	346	# define ROUTINE_LNK mpp_lnk_3d
	347	# include "mpp_lnk_generic.h90"
	348	# undef ROUTINE_LNK
	349	# define MULTI
	350	# define ROUTINE_LNK mpp_lnk_3d_ptr
	351	# include "mpp_lnk_generic.h90"
	352	# undef ROUTINE_LNK
	353	# undef MULTI
	354	# undef DIM_3d
	355	!
	356	! !== 4D array and array of 4D pointer ==!
	357	!
	358	# define DIM_4d
	359	# define ROUTINE_LNK mpp_lnk_4d
	360	# include "mpp_lnk_generic.h90"
	361	# undef ROUTINE_LNK
	362	# define MULTI
	363	# define ROUTINE_LNK mpp_lnk_4d_ptr
	364	# include "mpp_lnk_generic.h90"
	365	# undef ROUTINE_LNK
	366	# undef MULTI
	367	# undef DIM_4d
[6140]	368
[9019]	369	!!----------------------------------------------------------------------
	370	!! * routine mpp_nfd_(2,3,4)d *
	371	!!
	372	!! * Argument : dummy argument use in mpp_nfd_... routines
	373	!! ptab : array or pointer of arrays on which the boundary condition is applied
	374	!! cd_nat : nature of array grid-points
	375	!! psgn : sign used across the north fold boundary
	376	!! kfld : optional, number of pt3d arrays
	377	!! cd_mpp : optional, fill the overlap area only
	378	!! pval : optional, background value (used at closed boundaries)
	379	!!----------------------------------------------------------------------
	380	!
	381	! !== 2D array and array of 2D pointer ==!
	382	!
	383	# define DIM_2d
	384	# define ROUTINE_NFD mpp_nfd_2d
	385	# include "mpp_nfd_generic.h90"
	386	# undef ROUTINE_NFD
	387	# define MULTI
	388	# define ROUTINE_NFD mpp_nfd_2d_ptr
	389	# include "mpp_nfd_generic.h90"
	390	# undef ROUTINE_NFD
	391	# undef MULTI
	392	# undef DIM_2d
	393	!
	394	! !== 3D array and array of 3D pointer ==!
	395	!
	396	# define DIM_3d
	397	# define ROUTINE_NFD mpp_nfd_3d
	398	# include "mpp_nfd_generic.h90"
	399	# undef ROUTINE_NFD
	400	# define MULTI
	401	# define ROUTINE_NFD mpp_nfd_3d_ptr
	402	# include "mpp_nfd_generic.h90"
	403	# undef ROUTINE_NFD
	404	# undef MULTI
	405	# undef DIM_3d
	406	!
	407	! !== 4D array and array of 4D pointer ==!
	408	!
	409	# define DIM_4d
	410	# define ROUTINE_NFD mpp_nfd_4d
	411	# include "mpp_nfd_generic.h90"
	412	# undef ROUTINE_NFD
	413	# define MULTI
	414	# define ROUTINE_NFD mpp_nfd_4d_ptr
	415	# include "mpp_nfd_generic.h90"
	416	# undef ROUTINE_NFD
	417	# undef MULTI
	418	# undef DIM_4d
[3]	419
[1344]	420
[9019]	421	!!----------------------------------------------------------------------
	422	!! * routine mpp_lnk_bdy_(2,3,4)d *
	423	!!
	424	!! * Argument : dummy argument use in mpp_lnk_... routines
	425	!! ptab : array or pointer of arrays on which the boundary condition is applied
	426	!! cd_nat : nature of array grid-points
	427	!! psgn : sign used across the north fold boundary
	428	!! kb_bdy : BDY boundary set
	429	!! kfld : optional, number of pt3d arrays
	430	!!----------------------------------------------------------------------
	431	!
	432	! !== 2D array and array of 2D pointer ==!
	433	!
	434	# define DIM_2d
	435	# define ROUTINE_BDY mpp_lnk_bdy_2d
	436	# include "mpp_bdy_generic.h90"
	437	# undef ROUTINE_BDY
	438	# undef DIM_2d
	439	!
	440	! !== 3D array and array of 3D pointer ==!
	441	!
	442	# define DIM_3d
	443	# define ROUTINE_BDY mpp_lnk_bdy_3d
	444	# include "mpp_bdy_generic.h90"
	445	# undef ROUTINE_BDY
	446	# undef DIM_3d
	447	!
	448	! !== 4D array and array of 4D pointer ==!
	449	!
[9890]	450	# define DIM_4d
	451	# define ROUTINE_BDY mpp_lnk_bdy_4d
	452	# include "mpp_bdy_generic.h90"
	453	# undef ROUTINE_BDY
	454	# undef DIM_4d
[3]	455
[9019]	456	!!----------------------------------------------------------------------
	457	!!
	458	!! load_array & mpp_lnk_2d_9 à generaliser a 3D et 4D
[5429]	459
	460
[9019]	461	!! mpp_lnk_sum_2d et 3D ====>>>>>> à virer du code !!!!
[5429]	462
[9019]	463
	464	!!----------------------------------------------------------------------
[5429]	465
	466
[888]	467
[1344]	468	SUBROUTINE mppsend( ktyp, pmess, kbytes, kdest, md_req )
[51]	469	!!----------------------------------------------------------------------
	470	!! * routine mppsend *
[3764]	471	!!
[51]	472	!! ** Purpose : Send messag passing array
	473	!!
	474	!!----------------------------------------------------------------------
[1344]	475	REAL(wp), INTENT(inout) :: pmess(*) ! array of real
	476	INTEGER , INTENT(in ) :: kbytes ! size of the array pmess
	477	INTEGER , INTENT(in ) :: kdest ! receive process number
	478	INTEGER , INTENT(in ) :: ktyp ! tag of the message
	479	INTEGER , INTENT(in ) :: md_req ! argument for isend
	480	!!
	481	INTEGER :: iflag
[51]	482	!!----------------------------------------------------------------------
[1344]	483	!
[1601]	484	SELECT CASE ( cn_mpi_send )
[300]	485	CASE ( 'S' ) ! Standard mpi send (blocking)
[9570]	486	CALL mpi_send ( pmess, kbytes, mpi_double_precision, kdest , ktyp, mpi_comm_oce , iflag )
[300]	487	CASE ( 'B' ) ! Buffer mpi send (blocking)
[9570]	488	CALL mpi_bsend( pmess, kbytes, mpi_double_precision, kdest , ktyp, mpi_comm_oce , iflag )
[300]	489	CASE ( 'I' ) ! Immediate mpi send (non-blocking send)
[1344]	490	! be carefull, one more argument here : the mpi request identifier..
[9570]	491	CALL mpi_isend( pmess, kbytes, mpi_double_precision, kdest , ktyp, mpi_comm_oce, md_req, iflag )
[300]	492	END SELECT
[1344]	493	!
[51]	494	END SUBROUTINE mppsend
[3]	495
	496
[3294]	497	SUBROUTINE mpprecv( ktyp, pmess, kbytes, ksource )
[51]	498	!!----------------------------------------------------------------------
	499	!! * routine mpprecv *
	500	!!
	501	!! ** Purpose : Receive messag passing array
	502	!!
	503	!!----------------------------------------------------------------------
[1344]	504	REAL(wp), INTENT(inout) :: pmess(*) ! array of real
	505	INTEGER , INTENT(in ) :: kbytes ! suze of the array pmess
	506	INTEGER , INTENT(in ) :: ktyp ! Tag of the recevied message
[3764]	507	INTEGER, OPTIONAL, INTENT(in) :: ksource ! source process number
[1344]	508	!!
[51]	509	INTEGER :: istatus(mpi_status_size)
	510	INTEGER :: iflag
[3294]	511	INTEGER :: use_source
[1344]	512	!!----------------------------------------------------------------------
	513	!
[3764]	514	! If a specific process number has been passed to the receive call,
[3294]	515	! use that one. Default is to use mpi_any_source
[6140]	516	use_source = mpi_any_source
	517	IF( PRESENT(ksource) ) use_source = ksource
	518	!
[9570]	519	CALL mpi_recv( pmess, kbytes, mpi_double_precision, use_source, ktyp, mpi_comm_oce, istatus, iflag )
[1344]	520	!
[51]	521	END SUBROUTINE mpprecv
[3]	522
	523
[51]	524	SUBROUTINE mppgather( ptab, kp, pio )
	525	!!----------------------------------------------------------------------
	526	!! * routine mppgather *
[3764]	527	!!
	528	!! ** Purpose : Transfert between a local subdomain array and a work
[51]	529	!! array which is distributed following the vertical level.
	530	!!
[1344]	531	!!----------------------------------------------------------------------
[6140]	532	REAL(wp), DIMENSION(jpi,jpj) , INTENT(in ) :: ptab ! subdomain input array
	533	INTEGER , INTENT(in ) :: kp ! record length
[1344]	534	REAL(wp), DIMENSION(jpi,jpj,jpnij), INTENT( out) :: pio ! subdomain input array
[51]	535	!!
[1344]	536	INTEGER :: itaille, ierror ! temporary integer
[51]	537	!!---------------------------------------------------------------------
[1344]	538	!
	539	itaille = jpi * jpj
	540	CALL mpi_gather( ptab, itaille, mpi_double_precision, pio, itaille , &
[9570]	541	& mpi_double_precision, kp , mpi_comm_oce, ierror )
[1344]	542	!
[51]	543	END SUBROUTINE mppgather
[3]	544
	545
[51]	546	SUBROUTINE mppscatter( pio, kp, ptab )
	547	!!----------------------------------------------------------------------
	548	!! * routine mppscatter *
	549	!!
[3764]	550	!! ** Purpose : Transfert between awork array which is distributed
[51]	551	!! following the vertical level and the local subdomain array.
	552	!!
	553	!!----------------------------------------------------------------------
[6140]	554	REAL(wp), DIMENSION(jpi,jpj,jpnij) :: pio ! output array
	555	INTEGER :: kp ! Tag (not used with MPI
	556	REAL(wp), DIMENSION(jpi,jpj) :: ptab ! subdomain array input
[1344]	557	!!
	558	INTEGER :: itaille, ierror ! temporary integer
[51]	559	!!---------------------------------------------------------------------
[1344]	560	!
[6140]	561	itaille = jpi * jpj
[1344]	562	!
	563	CALL mpi_scatter( pio, itaille, mpi_double_precision, ptab, itaille , &
[9570]	564	& mpi_double_precision, kp , mpi_comm_oce, ierror )
[1344]	565	!
[51]	566	END SUBROUTINE mppscatter
[3]	567
[9019]	568	!!
[10292]	569	SUBROUTINE mpp_ilor( ld_switch, ldlast, kcom )
	570	! WARNING: must be used only once (by ice_dyn_adv_umx) because ll_switch and ireq are SAVE
	571	!!----------------------------------------------------------------------
	572	LOGICAL, INTENT(inout), DIMENSION(2) :: ld_switch
	573	LOGICAL, INTENT(in ), OPTIONAL :: ldlast
	574	INTEGER, INTENT(in ), OPTIONAL :: kcom
	575	INTEGER :: ierror, ilocalcomm
	576	LOGICAL, SAVE :: ll_switch
	577	INTEGER, SAVE :: ireq = -1
	578	!!----------------------------------------------------------------------
	579	ilocalcomm = mpi_comm_oce
	580	IF( PRESENT(kcom) ) ilocalcomm = kcom
	581
	582	IF ( ireq /= -1 ) THEN ! get ld_switch(2) from ll_switch (from previous call)
[10300]	583	IF( ln_timing ) CALL tic_tac(.TRUE., ld_global = .TRUE.)
[10292]	584	CALL mpi_wait(ireq, MPI_STATUS_IGNORE, ierror )
	585	ld_switch(2) = ll_switch
[10300]	586	IF( ln_timing ) CALL tic_tac(.FALSE., ld_global = .TRUE.)
[10292]	587	ENDIF
	588	IF( .NOT. ldlast ) & ! send ll_switch to be received on next call
	589	CALL mpi_iallreduce( ld_switch(1), ll_switch, 1, MPI_LOGICAL, mpi_lor, ilocalcomm, ireq, ierror )
[681]	590
[10292]	591	END SUBROUTINE mpp_ilor
[10297]	592
[9019]	593	!!----------------------------------------------------------------------
[10297]	594	!! * mppmax_a_int, mppmax_int, mppmax_a_real, mppmax_real *
	595	!!
	596	!!----------------------------------------------------------------------
	597	!!
	598	# define OPERATION_MAX
	599	# define INTEGER_TYPE
	600	# define DIM_0d
	601	# define ROUTINE_ALLREDUCE mppmax_int
	602	# include "mpp_allreduce_generic.h90"
	603	# undef ROUTINE_ALLREDUCE
	604	# undef DIM_0d
	605	# define DIM_1d
	606	# define ROUTINE_ALLREDUCE mppmax_a_int
	607	# include "mpp_allreduce_generic.h90"
	608	# undef ROUTINE_ALLREDUCE
	609	# undef DIM_1d
	610	# undef INTEGER_TYPE
	611	!
	612	# define REAL_TYPE
	613	# define DIM_0d
	614	# define ROUTINE_ALLREDUCE mppmax_real
	615	# include "mpp_allreduce_generic.h90"
	616	# undef ROUTINE_ALLREDUCE
	617	# undef DIM_0d
	618	# define DIM_1d
	619	# define ROUTINE_ALLREDUCE mppmax_a_real
	620	# include "mpp_allreduce_generic.h90"
	621	# undef ROUTINE_ALLREDUCE
	622	# undef DIM_1d
	623	# undef REAL_TYPE
	624	# undef OPERATION_MAX
	625	!!----------------------------------------------------------------------
[9019]	626	!! * mppmin_a_int, mppmin_int, mppmin_a_real, mppmin_real *
	627	!!
	628	!!----------------------------------------------------------------------
	629	!!
[10297]	630	# define OPERATION_MIN
	631	# define INTEGER_TYPE
	632	# define DIM_0d
	633	# define ROUTINE_ALLREDUCE mppmin_int
	634	# include "mpp_allreduce_generic.h90"
	635	# undef ROUTINE_ALLREDUCE
	636	# undef DIM_0d
	637	# define DIM_1d
	638	# define ROUTINE_ALLREDUCE mppmin_a_int
	639	# include "mpp_allreduce_generic.h90"
	640	# undef ROUTINE_ALLREDUCE
	641	# undef DIM_1d
	642	# undef INTEGER_TYPE
	643	!
	644	# define REAL_TYPE
	645	# define DIM_0d
	646	# define ROUTINE_ALLREDUCE mppmin_real
	647	# include "mpp_allreduce_generic.h90"
	648	# undef ROUTINE_ALLREDUCE
	649	# undef DIM_0d
	650	# define DIM_1d
	651	# define ROUTINE_ALLREDUCE mppmin_a_real
	652	# include "mpp_allreduce_generic.h90"
	653	# undef ROUTINE_ALLREDUCE
	654	# undef DIM_1d
	655	# undef REAL_TYPE
	656	# undef OPERATION_MIN
[3]	657
[9019]	658	!!----------------------------------------------------------------------
	659	!! * mppsum_a_int, mppsum_int, mppsum_a_real, mppsum_real *
	660	!!
	661	!! Global sum of 1D array or a variable (integer, real or complex)
	662	!!----------------------------------------------------------------------
	663	!!
[10297]	664	# define OPERATION_SUM
	665	# define INTEGER_TYPE
	666	# define DIM_0d
	667	# define ROUTINE_ALLREDUCE mppsum_int
	668	# include "mpp_allreduce_generic.h90"
	669	# undef ROUTINE_ALLREDUCE
	670	# undef DIM_0d
	671	# define DIM_1d
	672	# define ROUTINE_ALLREDUCE mppsum_a_int
	673	# include "mpp_allreduce_generic.h90"
	674	# undef ROUTINE_ALLREDUCE
	675	# undef DIM_1d
	676	# undef INTEGER_TYPE
	677	!
	678	# define REAL_TYPE
	679	# define DIM_0d
	680	# define ROUTINE_ALLREDUCE mppsum_real
	681	# include "mpp_allreduce_generic.h90"
	682	# undef ROUTINE_ALLREDUCE
	683	# undef DIM_0d
	684	# define DIM_1d
	685	# define ROUTINE_ALLREDUCE mppsum_a_real
	686	# include "mpp_allreduce_generic.h90"
	687	# undef ROUTINE_ALLREDUCE
	688	# undef DIM_1d
	689	# undef REAL_TYPE
	690	# undef OPERATION_SUM
[3764]	691
[10297]	692	# define OPERATION_SUM_DD
	693	# define COMPLEX_TYPE
	694	# define DIM_0d
	695	# define ROUTINE_ALLREDUCE mppsum_realdd
	696	# include "mpp_allreduce_generic.h90"
	697	# undef ROUTINE_ALLREDUCE
	698	# undef DIM_0d
	699	# define DIM_1d
	700	# define ROUTINE_ALLREDUCE mppsum_a_realdd
	701	# include "mpp_allreduce_generic.h90"
	702	# undef ROUTINE_ALLREDUCE
	703	# undef DIM_1d
	704	# undef COMPLEX_TYPE
	705	# undef OPERATION_SUM_DD
	706
[10314]	707	!!----------------------------------------------------------------------
	708	!! *** mpp_minloc2d, mpp_minloc3d, mpp_maxloc2d, mpp_maxloc3d
	709	!!
	710	!!----------------------------------------------------------------------
	711	!!
	712	# define OPERATION_MINLOC
	713	# define DIM_2d
	714	# define ROUTINE_LOC mpp_minloc2d
	715	# include "mpp_loc_generic.h90"
	716	# undef ROUTINE_LOC
	717	# undef DIM_2d
	718	# define DIM_3d
	719	# define ROUTINE_LOC mpp_minloc3d
	720	# include "mpp_loc_generic.h90"
	721	# undef ROUTINE_LOC
	722	# undef DIM_3d
	723	# undef OPERATION_MINLOC
[6140]	724
[10314]	725	# define OPERATION_MAXLOC
	726	# define DIM_2d
	727	# define ROUTINE_LOC mpp_maxloc2d
	728	# include "mpp_loc_generic.h90"
	729	# undef ROUTINE_LOC
	730	# undef DIM_2d
	731	# define DIM_3d
	732	# define ROUTINE_LOC mpp_maxloc3d
	733	# include "mpp_loc_generic.h90"
	734	# undef ROUTINE_LOC
	735	# undef DIM_3d
	736	# undef OPERATION_MAXLOC
[9019]	737
[1344]	738	SUBROUTINE mppsync()
	739	!!----------------------------------------------------------------------
	740	!! * routine mppsync *
[3764]	741	!!
[1344]	742	!! ** Purpose : Massively parallel processors, synchroneous
	743	!!
	744	!!-----------------------------------------------------------------------
	745	INTEGER :: ierror
	746	!!-----------------------------------------------------------------------
	747	!
[9570]	748	CALL mpi_barrier( mpi_comm_oce, ierror )
[1344]	749	!
	750	END SUBROUTINE mppsync
[3]	751
	752
[10330]	753	SUBROUTINE mppstop( ldfinal )
[1344]	754	!!----------------------------------------------------------------------
	755	!! * routine mppstop *
[3764]	756	!!
[3294]	757	!! ** purpose : Stop massively parallel processors method
[1344]	758	!!
	759	!!----------------------------------------------------------------------
[10330]	760	LOGICAL, OPTIONAL, INTENT(in) :: ldfinal ! source process number
	761	LOGICAL :: llfinal
[1344]	762	INTEGER :: info
	763	!!----------------------------------------------------------------------
	764	!
	765	CALL mppsync
	766	CALL mpi_finalize( info )
[10330]	767	llfinal = .FALSE.
	768	IF( PRESENT(ldfinal) ) llfinal = ldfinal
	769	IF( .NOT. llfinal ) STOP 123456
[1344]	770	!
	771	END SUBROUTINE mppstop
[3]	772
	773
[1344]	774	SUBROUTINE mpp_comm_free( kcom )
	775	!!----------------------------------------------------------------------
	776	INTEGER, INTENT(in) :: kcom
	777	!!
	778	INTEGER :: ierr
	779	!!----------------------------------------------------------------------
	780	!
	781	CALL MPI_COMM_FREE(kcom, ierr)
	782	!
	783	END SUBROUTINE mpp_comm_free
[3]	784
[869]	785
[2715]	786	SUBROUTINE mpp_ini_znl( kumout )
[1345]	787	!!----------------------------------------------------------------------
	788	!! * routine mpp_ini_znl *
	789	!!
	790	!! ** Purpose : Initialize special communicator for computing zonal sum
	791	!!
	792	!! ** Method : - Look for processors in the same row
	793	!! - Put their number in nrank_znl
	794	!! - Create group for the znl processors
	795	!! - Create a communicator for znl processors
	796	!! - Determine if processor should write znl files
	797	!!
	798	!! ** output
	799	!! ndim_rank_znl = number of processors on the same row
	800	!! ngrp_znl = group ID for the znl processors
	801	!! ncomm_znl = communicator for the ice procs.
	802	!! n_znl_root = number (in the world) of proc 0 in the ice comm.
	803	!!
	804	!!----------------------------------------------------------------------
[2715]	805	INTEGER, INTENT(in) :: kumout ! ocean.output logical units
[1345]	806	!
[2715]	807	INTEGER :: jproc ! dummy loop integer
	808	INTEGER :: ierr, ii ! local integer
	809	INTEGER, ALLOCATABLE, DIMENSION(:) :: kwork
	810	!!----------------------------------------------------------------------
[1345]	811	!-$$ WRITE (numout,*) 'mpp_ini_znl ', nproc, ' - ngrp_world : ', ngrp_world
	812	!-$$ WRITE (numout,*) 'mpp_ini_znl ', nproc, ' - mpi_comm_world : ', mpi_comm_world
[9570]	813	!-$$ WRITE (numout,*) 'mpp_ini_znl ', nproc, ' - mpi_comm_oce : ', mpi_comm_oce
[1345]	814	!
[2715]	815	ALLOCATE( kwork(jpnij), STAT=ierr )
	816	IF( ierr /= 0 ) THEN
	817	WRITE(kumout, cform_err)
	818	WRITE(kumout,*) 'mpp_ini_znl : failed to allocate 1D array of length jpnij'
	819	CALL mppstop
	820	ENDIF
	821
	822	IF( jpnj == 1 ) THEN
[1345]	823	ngrp_znl = ngrp_world
[9570]	824	ncomm_znl = mpi_comm_oce
[1345]	825	ELSE
	826	!
[9570]	827	CALL MPI_ALLGATHER ( njmpp, 1, mpi_integer, kwork, 1, mpi_integer, mpi_comm_oce, ierr )
[1345]	828	!-$$ WRITE (numout,*) 'mpp_ini_znl ', nproc, ' - kwork pour njmpp : ', kwork
	829	!-$$ CALL flush(numout)
	830	!
	831	! Count number of processors on the same row
	832	ndim_rank_znl = 0
	833	DO jproc=1,jpnij
	834	IF ( kwork(jproc) == njmpp ) THEN
	835	ndim_rank_znl = ndim_rank_znl + 1
	836	ENDIF
	837	END DO
	838	!-$$ WRITE (numout,*) 'mpp_ini_znl ', nproc, ' - ndim_rank_znl : ', ndim_rank_znl
	839	!-$$ CALL flush(numout)
	840	! Allocate the right size to nrank_znl
[1441]	841	IF (ALLOCATED (nrank_znl)) DEALLOCATE(nrank_znl)
[1345]	842	ALLOCATE(nrank_znl(ndim_rank_znl))
[3764]	843	ii = 0
[1345]	844	nrank_znl (:) = 0
	845	DO jproc=1,jpnij
	846	IF ( kwork(jproc) == njmpp) THEN
	847	ii = ii + 1
[3764]	848	nrank_znl(ii) = jproc -1
[1345]	849	ENDIF
	850	END DO
	851	!-$$ WRITE (numout,*) 'mpp_ini_znl ', nproc, ' - nrank_znl : ', nrank_znl
	852	!-$$ CALL flush(numout)
	853
	854	! Create the opa group
[9570]	855	CALL MPI_COMM_GROUP(mpi_comm_oce,ngrp_opa,ierr)
[1345]	856	!-$$ WRITE (numout,*) 'mpp_ini_znl ', nproc, ' - ngrp_opa : ', ngrp_opa
	857	!-$$ CALL flush(numout)
	858
	859	! Create the znl group from the opa group
	860	CALL MPI_GROUP_INCL ( ngrp_opa, ndim_rank_znl, nrank_znl, ngrp_znl, ierr )
	861	!-$$ WRITE (numout,*) 'mpp_ini_znl ', nproc, ' - ngrp_znl ', ngrp_znl
	862	!-$$ CALL flush(numout)
	863
	864	! Create the znl communicator from the opa communicator, ie the pool of procs in the same row
[9570]	865	CALL MPI_COMM_CREATE ( mpi_comm_oce, ngrp_znl, ncomm_znl, ierr )
[1345]	866	!-$$ WRITE (numout,*) 'mpp_ini_znl ', nproc, ' - ncomm_znl ', ncomm_znl
	867	!-$$ CALL flush(numout)
	868	!
	869	END IF
	870
	871	! Determines if processor if the first (starting from i=1) on the row
[3764]	872	IF ( jpni == 1 ) THEN
[1345]	873	l_znl_root = .TRUE.
	874	ELSE
	875	l_znl_root = .FALSE.
	876	kwork (1) = nimpp
[10297]	877	CALL mpp_min ( 'lib_mpp', kwork(1), kcom = ncomm_znl)
[1345]	878	IF ( nimpp == kwork(1)) l_znl_root = .TRUE.
	879	END IF
	880
[2715]	881	DEALLOCATE(kwork)
	882
[1345]	883	END SUBROUTINE mpp_ini_znl
	884
	885
[1344]	886	SUBROUTINE mpp_ini_north
	887	!!----------------------------------------------------------------------
	888	!! * routine mpp_ini_north *
	889	!!
[3764]	890	!! ** Purpose : Initialize special communicator for north folding
[1344]	891	!! condition together with global variables needed in the mpp folding
	892	!!
	893	!! ** Method : - Look for northern processors
	894	!! - Put their number in nrank_north
	895	!! - Create groups for the world processors and the north processors
	896	!! - Create a communicator for northern processors
	897	!!
	898	!! ** output
	899	!! njmppmax = njmpp for northern procs
	900	!! ndim_rank_north = number of processors in the northern line
	901	!! nrank_north (ndim_rank_north) = number of the northern procs.
	902	!! ngrp_world = group ID for the world processors
	903	!! ngrp_north = group ID for the northern processors
	904	!! ncomm_north = communicator for the northern procs.
	905	!! north_root = number (in the world) of proc 0 in the northern comm.
	906	!!
	907	!!----------------------------------------------------------------------
	908	INTEGER :: ierr
	909	INTEGER :: jjproc
	910	INTEGER :: ii, ji
	911	!!----------------------------------------------------------------------
	912	!
	913	njmppmax = MAXVAL( njmppt )
	914	!
	915	! Look for how many procs on the northern boundary
	916	ndim_rank_north = 0
	917	DO jjproc = 1, jpnij
	918	IF( njmppt(jjproc) == njmppmax ) ndim_rank_north = ndim_rank_north + 1
	919	END DO
	920	!
	921	! Allocate the right size to nrank_north
[1441]	922	IF (ALLOCATED (nrank_north)) DEALLOCATE(nrank_north)
[1344]	923	ALLOCATE( nrank_north(ndim_rank_north) )
[869]	924
[1344]	925	! Fill the nrank_north array with proc. number of northern procs.
	926	! Note : the rank start at 0 in MPI
	927	ii = 0
	928	DO ji = 1, jpnij
	929	IF ( njmppt(ji) == njmppmax ) THEN
	930	ii=ii+1
	931	nrank_north(ii)=ji-1
	932	END IF
	933	END DO
	934	!
	935	! create the world group
[9570]	936	CALL MPI_COMM_GROUP( mpi_comm_oce, ngrp_world, ierr )
[1344]	937	!
	938	! Create the North group from the world group
	939	CALL MPI_GROUP_INCL( ngrp_world, ndim_rank_north, nrank_north, ngrp_north, ierr )
	940	!
	941	! Create the North communicator , ie the pool of procs in the north group
[9570]	942	CALL MPI_COMM_CREATE( mpi_comm_oce, ngrp_north, ncomm_north, ierr )
[1344]	943	!
	944	END SUBROUTINE mpp_ini_north
[869]	945
	946
[9570]	947	SUBROUTINE mpi_init_oce( ldtxt, ksft, code )
[1344]	948	!!---------------------------------------------------------------------
	949	!! * routine mpp_init.opa *
	950	!!
	951	!! ** Purpose :: export and attach a MPI buffer for bsend
	952	!!
	953	!! ** Method :: define buffer size in namelist, if 0 no buffer attachment
	954	!! but classical mpi_init
[3764]	955	!!
	956	!! History :: 01/11 :: IDRIS initial version for IBM only
[1344]	957	!! 08/04 :: R. Benshila, generalisation
	958	!!---------------------------------------------------------------------
[3764]	959	CHARACTER(len=*),DIMENSION(:), INTENT( out) :: ldtxt
[2481]	960	INTEGER , INTENT(inout) :: ksft
	961	INTEGER , INTENT( out) :: code
	962	INTEGER :: ierr, ji
	963	LOGICAL :: mpi_was_called
[1344]	964	!!---------------------------------------------------------------------
	965	!
	966	CALL mpi_initialized( mpi_was_called, code ) ! MPI initialization
[532]	967	IF ( code /= MPI_SUCCESS ) THEN
[3764]	968	DO ji = 1, SIZE(ldtxt)
[2481]	969	IF( TRIM(ldtxt(ji)) /= '' ) WRITE(,) ldtxt(ji) ! control print of mynode
[3764]	970	END DO
[2481]	971	WRITE(*, cform_err)
	972	WRITE(, ) ' lib_mpp: Error in routine mpi_initialized'
[1344]	973	CALL mpi_abort( mpi_comm_world, code, ierr )
[532]	974	ENDIF
[1344]	975	!
	976	IF( .NOT. mpi_was_called ) THEN
	977	CALL mpi_init( code )
[9570]	978	CALL mpi_comm_dup( mpi_comm_world, mpi_comm_oce, code )
[532]	979	IF ( code /= MPI_SUCCESS ) THEN
[3764]	980	DO ji = 1, SIZE(ldtxt)
[2481]	981	IF( TRIM(ldtxt(ji)) /= '' ) WRITE(,) ldtxt(ji) ! control print of mynode
	982	END DO
	983	WRITE(*, cform_err)
	984	WRITE(, ) ' lib_mpp: Error in routine mpi_comm_dup'
[532]	985	CALL mpi_abort( mpi_comm_world, code, ierr )
	986	ENDIF
	987	ENDIF
[1344]	988	!
[897]	989	IF( nn_buffer > 0 ) THEN
[2481]	990	WRITE(ldtxt(ksft),*) 'mpi_bsend, buffer allocation of : ', nn_buffer ; ksft = ksft + 1
[897]	991	! Buffer allocation and attachment
[2481]	992	ALLOCATE( tampon(nn_buffer), stat = ierr )
[3764]	993	IF( ierr /= 0 ) THEN
	994	DO ji = 1, SIZE(ldtxt)
[2481]	995	IF( TRIM(ldtxt(ji)) /= '' ) WRITE(,) ldtxt(ji) ! control print of mynode
	996	END DO
	997	WRITE(*, cform_err)
	998	WRITE(, ) ' lib_mpp: Error in ALLOCATE', ierr
	999	CALL mpi_abort( mpi_comm_world, code, ierr )
	1000	END IF
	1001	CALL mpi_buffer_attach( tampon, nn_buffer, code )
[897]	1002	ENDIF
[1344]	1003	!
[9570]	1004	END SUBROUTINE mpi_init_oce
[3]	1005
[9019]	1006
	1007	SUBROUTINE DDPDD_MPI( ydda, yddb, ilen, itype )
[1976]	1008	!!---------------------------------------------------------------------
	1009	!! Routine DDPDD_MPI: used by reduction operator MPI_SUMDD
	1010	!!
	1011	!! Modification of original codes written by David H. Bailey
	1012	!! This subroutine computes yddb(i) = ydda(i)+yddb(i)
	1013	!!---------------------------------------------------------------------
[9019]	1014	INTEGER , INTENT(in) :: ilen, itype
	1015	COMPLEX(wp), DIMENSION(ilen), INTENT(in) :: ydda
	1016	COMPLEX(wp), DIMENSION(ilen), INTENT(inout) :: yddb
[1976]	1017	!
	1018	REAL(wp) :: zerr, zt1, zt2 ! local work variables
[9019]	1019	INTEGER :: ji, ztmp ! local scalar
	1020	!!---------------------------------------------------------------------
	1021	!
[1976]	1022	ztmp = itype ! avoid compilation warning
[9019]	1023	!
[1976]	1024	DO ji=1,ilen
	1025	! Compute ydda + yddb using Knuth's trick.
	1026	zt1 = real(ydda(ji)) + real(yddb(ji))
	1027	zerr = zt1 - real(ydda(ji))
	1028	zt2 = ((real(yddb(ji)) - zerr) + (real(ydda(ji)) - (zt1 - zerr))) &
	1029	+ aimag(ydda(ji)) + aimag(yddb(ji))
	1030
	1031	! The result is zt1 + zt2, after normalization.
	1032	yddb(ji) = cmplx ( zt1 + zt2, zt2 - ((zt1 + zt2) - zt1),wp )
	1033	END DO
[9019]	1034	!
[1976]	1035	END SUBROUTINE DDPDD_MPI
	1036
[6140]	1037
[9019]	1038	SUBROUTINE mpp_lbc_north_icb( pt2d, cd_type, psgn, kextj)
[4990]	1039	!!---------------------------------------------------------------------
	1040	!! * routine mpp_lbc_north_icb *
	1041	!!
	1042	!! ** Purpose : Ensure proper north fold horizontal bondary condition
	1043	!! in mpp configuration in case of jpn1 > 1 and for 2d
	1044	!! array with outer extra halo
	1045	!!
	1046	!! ** Method : North fold condition and mpp with more than one proc
	1047	!! in i-direction require a specific treatment. We gather
[9019]	1048	!! the 4+kextj northern lines of the global domain on 1
[4990]	1049	!! processor and apply lbc north-fold on this sub array.
	1050	!! Then we scatter the north fold array back to the processors.
[9019]	1051	!! This routine accounts for an extra halo with icebergs
	1052	!! and assumes ghost rows and columns have been suppressed.
[4990]	1053	!!
	1054	!!----------------------------------------------------------------------
	1055	REAL(wp), DIMENSION(:,:), INTENT(inout) :: pt2d ! 2D array with extra halo
	1056	CHARACTER(len=1) , INTENT(in ) :: cd_type ! nature of pt3d grid-points
	1057	! ! = T , U , V , F or W -points
	1058	REAL(wp) , INTENT(in ) :: psgn ! = -1. the sign change across the
	1059	!! ! north fold, = 1. otherwise
[9019]	1060	INTEGER , INTENT(in ) :: kextj ! Extra halo width at north fold
[6140]	1061	!
[4990]	1062	INTEGER :: ji, jj, jr
	1063	INTEGER :: ierr, itaille, ildi, ilei, iilb
[9019]	1064	INTEGER :: ipj, ij, iproc
[4990]	1065	!
	1066	REAL(wp), DIMENSION(:,:) , ALLOCATABLE :: ztab_e, znorthloc_e
	1067	REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: znorthgloio_e
	1068	!!----------------------------------------------------------------------
	1069	!
[9019]	1070	ipj=4
[9467]	1071	ALLOCATE( ztab_e(jpiglo, 1-kextj:ipj+kextj) , &
	1072	& znorthloc_e(jpimax, 1-kextj:ipj+kextj) , &
	1073	& znorthgloio_e(jpimax, 1-kextj:ipj+kextj,jpni) )
[4990]	1074	!
[9019]	1075	ztab_e(:,:) = 0._wp
	1076	znorthloc_e(:,:) = 0._wp
[6140]	1077	!
[9467]	1078	ij = 1 - kextj
	1079	! put the last ipj+2*kextj lines of pt2d into znorthloc_e
	1080	DO jj = jpj - ipj + 1 - kextj , jpj + kextj
	1081	znorthloc_e(1:jpi,ij)=pt2d(1:jpi,jj)
[4990]	1082	ij = ij + 1
	1083	END DO
	1084	!
[9467]	1085	itaille = jpimax * ( ipj + 2*kextj )
[10314]	1086	!
	1087	IF( ln_timing ) CALL tic_tac(.TRUE.)
[9467]	1088	CALL MPI_ALLGATHER( znorthloc_e(1,1-kextj) , itaille, MPI_DOUBLE_PRECISION, &
	1089	& znorthgloio_e(1,1-kextj,1), itaille, MPI_DOUBLE_PRECISION, &
	1090	& ncomm_north, ierr )
[4990]	1091	!
[10314]	1092	IF( ln_timing ) CALL tic_tac(.FALSE.)
	1093	!
[4990]	1094	DO jr = 1, ndim_rank_north ! recover the global north array
	1095	iproc = nrank_north(jr) + 1
	1096	ildi = nldit (iproc)
	1097	ilei = nleit (iproc)
	1098	iilb = nimppt(iproc)
[9467]	1099	DO jj = 1-kextj, ipj+kextj
[4990]	1100	DO ji = ildi, ilei
	1101	ztab_e(ji+iilb-1,jj) = znorthgloio_e(ji,jj,jr)
	1102	END DO
	1103	END DO
	1104	END DO
	1105
	1106	! 2. North-Fold boundary conditions
	1107	! ----------------------------------
[9467]	1108	CALL lbc_nfd( ztab_e(:,1-kextj:ipj+kextj), cd_type, psgn, kextj )
[4990]	1109
[9467]	1110	ij = 1 - kextj
[4990]	1111	!! Scatter back to pt2d
[9467]	1112	DO jj = jpj - ipj + 1 - kextj , jpj + kextj
[9019]	1113	DO ji= 1, jpi
[4990]	1114	pt2d(ji,jj) = ztab_e(ji+nimpp-1,ij)
	1115	END DO
[9467]	1116	ij = ij +1
[4990]	1117	END DO
	1118	!
	1119	DEALLOCATE( ztab_e, znorthloc_e, znorthgloio_e )
	1120	!
	1121	END SUBROUTINE mpp_lbc_north_icb
	1122
[6140]	1123
[10314]	1124	SUBROUTINE mpp_lnk_2d_icb( cdname, pt2d, cd_type, psgn, kexti, kextj )
[4990]	1125	!!----------------------------------------------------------------------
	1126	!! * routine mpp_lnk_2d_icb *
	1127	!!
[9019]	1128	!! ** Purpose : Message passing management for 2d array (with extra halo for icebergs)
	1129	!! This routine receives a (1-kexti:jpi+kexti,1-kexti:jpj+kextj)
	1130	!! array (usually (0:jpi+1, 0:jpj+1)) from lbc_lnk_icb calls.
[4990]	1131	!!
	1132	!! ** Method : Use mppsend and mpprecv function for passing mask
	1133	!! between processors following neighboring subdomains.
	1134	!! domain parameters
[9019]	1135	!! jpi : first dimension of the local subdomain
	1136	!! jpj : second dimension of the local subdomain
	1137	!! kexti : number of columns for extra outer halo
	1138	!! kextj : number of rows for extra outer halo
[4990]	1139	!! nbondi : mark for "east-west local boundary"
	1140	!! nbondj : mark for "north-south local boundary"
	1141	!! noea : number for local neighboring processors
	1142	!! nowe : number for local neighboring processors
	1143	!! noso : number for local neighboring processors
	1144	!! nono : number for local neighboring processors
	1145	!!----------------------------------------------------------------------
[10314]	1146	CHARACTER(len=*) , INTENT(in ) :: cdname ! name of the calling subroutine
[9019]	1147	REAL(wp), DIMENSION(1-kexti:jpi+kexti,1-kextj:jpj+kextj), INTENT(inout) :: pt2d ! 2D array with extra halo
	1148	CHARACTER(len=1) , INTENT(in ) :: cd_type ! nature of ptab array grid-points
	1149	REAL(wp) , INTENT(in ) :: psgn ! sign used across the north fold
	1150	INTEGER , INTENT(in ) :: kexti ! extra i-halo width
	1151	INTEGER , INTENT(in ) :: kextj ! extra j-halo width
	1152	!
[4990]	1153	INTEGER :: jl ! dummy loop indices
[9019]	1154	INTEGER :: imigr, iihom, ijhom ! local integers
	1155	INTEGER :: ipreci, iprecj ! - -
[4990]	1156	INTEGER :: ml_req1, ml_req2, ml_err ! for key_mpi_isend
	1157	INTEGER, DIMENSION(MPI_STATUS_SIZE) :: ml_stat ! for key_mpi_isend
	1158	!!
[9019]	1159	REAL(wp), DIMENSION(1-kexti:jpi+kexti,nn_hls+kextj,2) :: r2dns, r2dsn
	1160	REAL(wp), DIMENSION(1-kextj:jpj+kextj,nn_hls+kexti,2) :: r2dwe, r2dew
[4990]	1161	!!----------------------------------------------------------------------
	1162
[9019]	1163	ipreci = nn_hls + kexti ! take into account outer extra 2D overlap area
	1164	iprecj = nn_hls + kextj
[4990]	1165
[10314]	1166	IF( narea == 1 .AND. numcom == -1 ) CALL mpp_report( cdname, 1, 1, 1, ld_lbc = .TRUE. )
[4990]	1167
	1168	! 1. standard boundary treatment
	1169	! ------------------------------
	1170	! Order matters Here !!!!
	1171	!
	1172	! ! East-West boundaries
	1173	! !* Cyclic east-west
[9667]	1174	IF( l_Iperio ) THEN
	1175	pt2d(1-kexti: 1 ,:) = pt2d(jpim1-kexti: jpim1 ,:) ! east
	1176	pt2d( jpi :jpi+kexti,:) = pt2d( 2 :2+kexti,:) ! west
[4990]	1177	!
	1178	ELSE !* closed
[9667]	1179	IF( .NOT. cd_type == 'F' ) pt2d( 1-kexti :nn_hls ,:) = 0._wp ! east except at F-point
	1180	pt2d(jpi-nn_hls+1:jpi+kexti,:) = 0._wp ! west
[4990]	1181	ENDIF
[9667]	1182	! ! North-South boundaries
	1183	IF( l_Jperio ) THEN !* cyclic (only with no mpp j-split)
	1184	pt2d(:,1-kextj: 1 ) = pt2d(:,jpjm1-kextj: jpjm1) ! north
	1185	pt2d(:, jpj :jpj+kextj) = pt2d(:, 2 :2+kextj) ! south
	1186	ELSE !* closed
	1187	IF( .NOT. cd_type == 'F' ) pt2d(:, 1-kextj :nn_hls ) = 0._wp ! north except at F-point
	1188	pt2d(:,jpj-nn_hls+1:jpj+kextj) = 0._wp ! south
	1189	ENDIF
[4990]	1190	!
	1191
	1192	! north fold treatment
	1193	! -----------------------
	1194	IF( npolj /= 0 ) THEN
	1195	!
	1196	SELECT CASE ( jpni )
[9019]	1197	CASE ( 1 ) ; CALL lbc_nfd ( pt2d(1:jpi,1:jpj+kextj), cd_type, psgn, kextj )
	1198	CASE DEFAULT ; CALL mpp_lbc_north_icb( pt2d(1:jpi,1:jpj+kextj), cd_type, psgn, kextj )
[4990]	1199	END SELECT
	1200	!
	1201	ENDIF
	1202
	1203	! 2. East and west directions exchange
	1204	! ------------------------------------
	1205	! we play with the neigbours AND the row number because of the periodicity
	1206	!
	1207	SELECT CASE ( nbondi ) ! Read Dirichlet lateral conditions
	1208	CASE ( -1, 0, 1 ) ! all exept 2 (i.e. close case)
[9019]	1209	iihom = jpi-nreci-kexti
[4990]	1210	DO jl = 1, ipreci
[9019]	1211	r2dew(:,jl,1) = pt2d(nn_hls+jl,:)
[4990]	1212	r2dwe(:,jl,1) = pt2d(iihom +jl,:)
	1213	END DO
	1214	END SELECT
	1215	!
	1216	! ! Migrations
[9019]	1217	imigr = ipreci * ( jpj + 2*kextj )
[4990]	1218	!
[10314]	1219	IF( ln_timing ) CALL tic_tac(.TRUE.)
	1220	!
[4990]	1221	SELECT CASE ( nbondi )
	1222	CASE ( -1 )
[9019]	1223	CALL mppsend( 2, r2dwe(1-kextj,1,1), imigr, noea, ml_req1 )
	1224	CALL mpprecv( 1, r2dew(1-kextj,1,2), imigr, noea )
[4990]	1225	IF(l_isend) CALL mpi_wait(ml_req1,ml_stat,ml_err)
	1226	CASE ( 0 )
[9019]	1227	CALL mppsend( 1, r2dew(1-kextj,1,1), imigr, nowe, ml_req1 )
	1228	CALL mppsend( 2, r2dwe(1-kextj,1,1), imigr, noea, ml_req2 )
	1229	CALL mpprecv( 1, r2dew(1-kextj,1,2), imigr, noea )
	1230	CALL mpprecv( 2, r2dwe(1-kextj,1,2), imigr, nowe )
[4990]	1231	IF(l_isend) CALL mpi_wait(ml_req1,ml_stat,ml_err)
	1232	IF(l_isend) CALL mpi_wait(ml_req2,ml_stat,ml_err)
	1233	CASE ( 1 )
[9019]	1234	CALL mppsend( 1, r2dew(1-kextj,1,1), imigr, nowe, ml_req1 )
	1235	CALL mpprecv( 2, r2dwe(1-kextj,1,2), imigr, nowe )
[4990]	1236	IF(l_isend) CALL mpi_wait(ml_req1,ml_stat,ml_err)
	1237	END SELECT
	1238	!
[10314]	1239	IF( ln_timing ) CALL tic_tac(.FALSE.)
	1240	!
[4990]	1241	! ! Write Dirichlet lateral conditions
[9019]	1242	iihom = jpi - nn_hls
[4990]	1243	!
	1244	SELECT CASE ( nbondi )
	1245	CASE ( -1 )
	1246	DO jl = 1, ipreci
	1247	pt2d(iihom+jl,:) = r2dew(:,jl,2)
	1248	END DO
	1249	CASE ( 0 )
	1250	DO jl = 1, ipreci
[9019]	1251	pt2d(jl-kexti,:) = r2dwe(:,jl,2)
	1252	pt2d(iihom+jl,:) = r2dew(:,jl,2)
[4990]	1253	END DO
	1254	CASE ( 1 )
	1255	DO jl = 1, ipreci
[9019]	1256	pt2d(jl-kexti,:) = r2dwe(:,jl,2)
[4990]	1257	END DO
	1258	END SELECT
	1259
	1260
	1261	! 3. North and south directions
	1262	! -----------------------------
	1263	! always closed : we play only with the neigbours
	1264	!
	1265	IF( nbondj /= 2 ) THEN ! Read Dirichlet lateral conditions
[9019]	1266	ijhom = jpj-nrecj-kextj
[4990]	1267	DO jl = 1, iprecj
	1268	r2dsn(:,jl,1) = pt2d(:,ijhom +jl)
[9019]	1269	r2dns(:,jl,1) = pt2d(:,nn_hls+jl)
[4990]	1270	END DO
	1271	ENDIF
	1272	!
	1273	! ! Migrations
[9019]	1274	imigr = iprecj * ( jpi + 2*kexti )
[4990]	1275	!
[10314]	1276	IF( ln_timing ) CALL tic_tac(.TRUE.)
	1277	!
[4990]	1278	SELECT CASE ( nbondj )
	1279	CASE ( -1 )
[9019]	1280	CALL mppsend( 4, r2dsn(1-kexti,1,1), imigr, nono, ml_req1 )
	1281	CALL mpprecv( 3, r2dns(1-kexti,1,2), imigr, nono )
[4990]	1282	IF(l_isend) CALL mpi_wait(ml_req1,ml_stat,ml_err)
	1283	CASE ( 0 )
[9019]	1284	CALL mppsend( 3, r2dns(1-kexti,1,1), imigr, noso, ml_req1 )
	1285	CALL mppsend( 4, r2dsn(1-kexti,1,1), imigr, nono, ml_req2 )
	1286	CALL mpprecv( 3, r2dns(1-kexti,1,2), imigr, nono )
	1287	CALL mpprecv( 4, r2dsn(1-kexti,1,2), imigr, noso )
[4990]	1288	IF(l_isend) CALL mpi_wait(ml_req1,ml_stat,ml_err)
	1289	IF(l_isend) CALL mpi_wait(ml_req2,ml_stat,ml_err)
	1290	CASE ( 1 )
[9019]	1291	CALL mppsend( 3, r2dns(1-kexti,1,1), imigr, noso, ml_req1 )
	1292	CALL mpprecv( 4, r2dsn(1-kexti,1,2), imigr, noso )
[4990]	1293	IF(l_isend) CALL mpi_wait(ml_req1,ml_stat,ml_err)
	1294	END SELECT
	1295	!
[10314]	1296	IF( ln_timing ) CALL tic_tac(.FALSE.)
	1297	!
[4990]	1298	! ! Write Dirichlet lateral conditions
[9019]	1299	ijhom = jpj - nn_hls
[4990]	1300	!
	1301	SELECT CASE ( nbondj )
	1302	CASE ( -1 )
	1303	DO jl = 1, iprecj
	1304	pt2d(:,ijhom+jl) = r2dns(:,jl,2)
	1305	END DO
	1306	CASE ( 0 )
	1307	DO jl = 1, iprecj
[9019]	1308	pt2d(:,jl-kextj) = r2dsn(:,jl,2)
	1309	pt2d(:,ijhom+jl) = r2dns(:,jl,2)
[4990]	1310	END DO
	1311	CASE ( 1 )
	1312	DO jl = 1, iprecj
[9019]	1313	pt2d(:,jl-kextj) = r2dsn(:,jl,2)
[4990]	1314	END DO
	1315	END SELECT
[9019]	1316	!
[4990]	1317	END SUBROUTINE mpp_lnk_2d_icb
[10172]	1318
[10314]	1319
	1320	SUBROUTINE mpp_report( cdname, kpk, kpl, kpf, ld_lbc, ld_glb )
	1321	!!----------------------------------------------------------------------
	1322	!! * routine mpp_report *
	1323	!!
	1324	!! ** Purpose : report use of mpp routines per time-setp
	1325	!!
	1326	!!----------------------------------------------------------------------
	1327	CHARACTER(len=*), INTENT(in ) :: cdname ! name of the calling subroutine
	1328	INTEGER , OPTIONAL, INTENT(in ) :: kpk, kpl, kpf
	1329	LOGICAL , OPTIONAL, INTENT(in ) :: ld_lbc, ld_glb
	1330	!!
	1331	LOGICAL :: ll_lbc, ll_glb
	1332	INTEGER :: ji, jj, jk, jh, jf ! dummy loop indices
	1333	!!----------------------------------------------------------------------
	1334	!
	1335	ll_lbc = .FALSE.
	1336	IF( PRESENT(ld_lbc) ) ll_lbc = ld_lbc
	1337	ll_glb = .FALSE.
	1338	IF( PRESENT(ld_glb) ) ll_glb = ld_glb
	1339	!
	1340	! find the smallest common frequency: default = frequency product, if multiple, choose the larger of the 2 frequency
	1341	ncom_freq = ncom_fsbc * ncom_dttrc
	1342	IF( MOD( MAX(ncom_fsbc,ncom_dttrc), MIN(ncom_fsbc,ncom_dttrc) ) == 0 ) ncom_freq = MAX(ncom_fsbc,ncom_dttrc)
	1343	!
	1344	IF ( ncom_stp == nit000+ncom_freq ) THEN ! avoid to count extra communications in potential initializations at nit000
	1345	IF( ll_lbc ) THEN
	1346	IF( .NOT. ALLOCATED(ncomm_sequence) ) ALLOCATE( ncomm_sequence(ncom_rec_max,2) )
	1347	IF( .NOT. ALLOCATED( crname_lbc) ) ALLOCATE( crname_lbc(ncom_rec_max ) )
	1348	n_sequence_lbc = n_sequence_lbc + 1
	1349	IF( n_sequence_lbc > ncom_rec_max ) CALL ctl_stop( 'STOP', 'lnk_generic, increase ncom_rec_max' ) ! deadlock
	1350	crname_lbc(n_sequence_lbc) = cdname ! keep the name of the calling routine
	1351	ncomm_sequence(n_sequence_lbc,1) = kpk*kpl ! size of 3rd and 4th dimensions
	1352	ncomm_sequence(n_sequence_lbc,2) = kpf ! number of arrays to be treated (multi)
	1353	ENDIF
	1354	IF( ll_glb ) THEN
	1355	IF( .NOT. ALLOCATED(crname_glb) ) ALLOCATE( crname_glb(ncom_rec_max) )
	1356	n_sequence_glb = n_sequence_glb + 1
	1357	IF( n_sequence_glb > ncom_rec_max ) CALL ctl_stop( 'STOP', 'lnk_generic, increase ncom_rec_max' ) ! deadlock
	1358	crname_glb(n_sequence_glb) = cdname ! keep the name of the calling routine
	1359	ENDIF
	1360	ELSE IF ( ncom_stp == nit000+2*ncom_freq ) THEN
	1361	CALL ctl_opn( numcom, 'communication_report.txt', 'REPLACE', 'FORMATTED', 'SEQUENTIAL', -1, numout, .FALSE., narea )
	1362	WRITE(numcom,*) ' '
	1363	WRITE(numcom,*) ' ------------------------------------------------------------'
	1364	WRITE(numcom,*) ' Communication pattern report (second oce+sbc+top time step):'
	1365	WRITE(numcom,*) ' ------------------------------------------------------------'
	1366	WRITE(numcom,*) ' '
	1367	WRITE(numcom,'(A,I4)') ' Exchanged halos : ', n_sequence_lbc
	1368	jj = 0; jk = 0; jf = 0; jh = 0
	1369	DO ji = 1, n_sequence_lbc
	1370	IF ( ncomm_sequence(ji,1) .GT. 1 ) jk = jk + 1
	1371	IF ( ncomm_sequence(ji,2) .GT. 1 ) jf = jf + 1
	1372	IF ( ncomm_sequence(ji,1) .GT. 1 .AND. ncomm_sequence(ji,2) .GT. 1 ) jj = jj + 1
	1373	jh = MAX (jh, ncomm_sequence(ji,1)*ncomm_sequence(ji,2))
	1374	END DO
	1375	WRITE(numcom,'(A,I3)') ' 3D Exchanged halos : ', jk
	1376	WRITE(numcom,'(A,I3)') ' Multi arrays exchanged halos : ', jf
	1377	WRITE(numcom,'(A,I3)') ' from which 3D : ', jj
	1378	WRITE(numcom,'(A,I10)') ' Array max size : ', jhjpijpj
	1379	WRITE(numcom,*) ' '
	1380	WRITE(numcom,*) ' lbc_lnk called'
	1381	jj = 1
	1382	DO ji = 2, n_sequence_lbc
	1383	IF( crname_lbc(ji-1) /= crname_lbc(ji) ) THEN
	1384	WRITE(numcom,'(A, I4, A, A)') ' - ', jj,' times by subroutine ', TRIM(crname_lbc(ji-1))
	1385	jj = 0
	1386	END IF
	1387	jj = jj + 1
	1388	END DO
	1389	WRITE(numcom,'(A, I4, A, A)') ' - ', jj,' times by subroutine ', TRIM(crname_lbc(n_sequence_lbc))
	1390	WRITE(numcom,*) ' '
	1391	IF ( n_sequence_glb > 0 ) THEN
	1392	WRITE(numcom,'(A,I4)') ' Global communications : ', n_sequence_glb
	1393	jj = 1
	1394	DO ji = 2, n_sequence_glb
	1395	IF( crname_glb(ji-1) /= crname_glb(ji) ) THEN
	1396	WRITE(numcom,'(A, I4, A, A)') ' - ', jj,' times by subroutine ', TRIM(crname_glb(ji-1))
	1397	jj = 0
	1398	END IF
	1399	jj = jj + 1
	1400	END DO
	1401	WRITE(numcom,'(A, I4, A, A)') ' - ', jj,' times by subroutine ', TRIM(crname_glb(n_sequence_glb))
	1402	DEALLOCATE(crname_glb)
	1403	ELSE
	1404	WRITE(numcom,*) ' No MPI global communication '
	1405	ENDIF
	1406	WRITE(numcom,*) ' '
	1407	WRITE(numcom,*) ' -----------------------------------------------'
	1408	WRITE(numcom,*) ' '
	1409	DEALLOCATE(ncomm_sequence)
	1410	DEALLOCATE(crname_lbc)
	1411	ENDIF
	1412	END SUBROUTINE mpp_report
	1413
[6140]	1414
[10300]	1415	SUBROUTINE tic_tac (ld_tic, ld_global)
[10172]	1416
[10300]	1417	LOGICAL, INTENT(IN) :: ld_tic
	1418	LOGICAL, OPTIONAL, INTENT(IN) :: ld_global
	1419	REAL(wp), DIMENSION(2), SAVE :: tic_wt
	1420	REAL(wp), SAVE :: tic_ct = 0._wp
	1421	INTEGER :: ii
[10172]	1422
	1423	IF( ncom_stp <= nit000 ) RETURN
	1424	IF( ncom_stp == nitend ) RETURN
[10300]	1425	ii = 1
	1426	IF( PRESENT( ld_global ) ) THEN
	1427	IF( ld_global ) ii = 2
	1428	END IF
[10172]	1429
[10300]	1430	IF ( ld_tic ) THEN
	1431	tic_wt(ii) = MPI_Wtime() ! start count tic->tac (waiting time)
[10172]	1432	IF ( tic_ct > 0.0_wp ) compute_time = compute_time + MPI_Wtime() - tic_ct ! cumulate count tac->tic
	1433	ELSE
[10300]	1434	waiting_time(ii) = waiting_time(ii) + MPI_Wtime() - tic_wt(ii) ! cumulate count tic->tac
[10172]	1435	tic_ct = MPI_Wtime() ! start count tac->tic (waiting time)
	1436	ENDIF
	1437
	1438	END SUBROUTINE tic_tac
	1439
	1440
[13]	1441	#else
	1442	!!----------------------------------------------------------------------
	1443	!! Default case: Dummy module share memory computing
	1444	!!----------------------------------------------------------------------
[2715]	1445	USE in_out_manager
[1976]	1446
[13]	1447	INTERFACE mpp_sum
[10314]	1448	MODULE PROCEDURE mppsum_int, mppsum_a_int, mppsum_real, mppsum_a_real, mppsum_realdd, mppsum_a_realdd
[13]	1449	END INTERFACE
	1450	INTERFACE mpp_max
[681]	1451	MODULE PROCEDURE mppmax_a_int, mppmax_int, mppmax_a_real, mppmax_real
[13]	1452	END INTERFACE
	1453	INTERFACE mpp_min
	1454	MODULE PROCEDURE mppmin_a_int, mppmin_int, mppmin_a_real, mppmin_real
	1455	END INTERFACE
[1344]	1456	INTERFACE mpp_minloc
	1457	MODULE PROCEDURE mpp_minloc2d ,mpp_minloc3d
	1458	END INTERFACE
	1459	INTERFACE mpp_maxloc
	1460	MODULE PROCEDURE mpp_maxloc2d ,mpp_maxloc3d
	1461	END INTERFACE
[3]	1462
[13]	1463	LOGICAL, PUBLIC, PARAMETER :: lk_mpp = .FALSE. !: mpp flag
[4147]	1464	LOGICAL, PUBLIC :: ln_nnogather !: namelist control of northfold comms (needed here in case "key_mpp_mpi" is not used)
[9570]	1465	INTEGER, PUBLIC :: mpi_comm_oce ! opa local communicator
[2715]	1466	!!----------------------------------------------------------------------
[13]	1467	CONTAINS
[3]	1468
[2715]	1469	INTEGER FUNCTION lib_mpp_alloc(kumout) ! Dummy function
	1470	INTEGER, INTENT(in) :: kumout
	1471	lib_mpp_alloc = 0
	1472	END FUNCTION lib_mpp_alloc
	1473
[5407]	1474	FUNCTION mynode( ldtxt, ldname, kumnam_ref, knumnam_cfg, kumond , kstop, localComm ) RESULT (function_value)
[1579]	1475	INTEGER, OPTIONAL , INTENT(in ) :: localComm
[3764]	1476	CHARACTER(len=*),DIMENSION(:) :: ldtxt
[5407]	1477	CHARACTER(len=*) :: ldname
[4314]	1478	INTEGER :: kumnam_ref, knumnam_cfg , kumond , kstop
[9570]	1479	IF( PRESENT( localComm ) ) mpi_comm_oce = localComm
[5412]	1480	function_value = 0
[1579]	1481	IF( .FALSE. ) ldtxt(:) = 'never done'
[5407]	1482	CALL ctl_opn( kumond, TRIM(ldname), 'UNKNOWN', 'FORMATTED', 'SEQUENTIAL', -1, 6, .FALSE. , 1 )
[13]	1483	END FUNCTION mynode
[3]	1484
[13]	1485	SUBROUTINE mppsync ! Dummy routine
	1486	END SUBROUTINE mppsync
[3]	1487
[10314]	1488	!!----------------------------------------------------------------------
	1489	!! * mppmax_a_int, mppmax_int, mppmax_a_real, mppmax_real *
	1490	!!
	1491	!!----------------------------------------------------------------------
	1492	!!
	1493	# define OPERATION_MAX
	1494	# define INTEGER_TYPE
	1495	# define DIM_0d
	1496	# define ROUTINE_ALLREDUCE mppmax_int
	1497	# include "mpp_allreduce_generic.h90"
	1498	# undef ROUTINE_ALLREDUCE
	1499	# undef DIM_0d
	1500	# define DIM_1d
	1501	# define ROUTINE_ALLREDUCE mppmax_a_int
	1502	# include "mpp_allreduce_generic.h90"
	1503	# undef ROUTINE_ALLREDUCE
	1504	# undef DIM_1d
	1505	# undef INTEGER_TYPE
	1506	!
	1507	# define REAL_TYPE
	1508	# define DIM_0d
	1509	# define ROUTINE_ALLREDUCE mppmax_real
	1510	# include "mpp_allreduce_generic.h90"
	1511	# undef ROUTINE_ALLREDUCE
	1512	# undef DIM_0d
	1513	# define DIM_1d
	1514	# define ROUTINE_ALLREDUCE mppmax_a_real
	1515	# include "mpp_allreduce_generic.h90"
	1516	# undef ROUTINE_ALLREDUCE
	1517	# undef DIM_1d
	1518	# undef REAL_TYPE
	1519	# undef OPERATION_MAX
	1520	!!----------------------------------------------------------------------
	1521	!! * mppmin_a_int, mppmin_int, mppmin_a_real, mppmin_real *
	1522	!!
	1523	!!----------------------------------------------------------------------
	1524	!!
	1525	# define OPERATION_MIN
	1526	# define INTEGER_TYPE
	1527	# define DIM_0d
	1528	# define ROUTINE_ALLREDUCE mppmin_int
	1529	# include "mpp_allreduce_generic.h90"
	1530	# undef ROUTINE_ALLREDUCE
	1531	# undef DIM_0d
	1532	# define DIM_1d
	1533	# define ROUTINE_ALLREDUCE mppmin_a_int
	1534	# include "mpp_allreduce_generic.h90"
	1535	# undef ROUTINE_ALLREDUCE
	1536	# undef DIM_1d
	1537	# undef INTEGER_TYPE
	1538	!
	1539	# define REAL_TYPE
	1540	# define DIM_0d
	1541	# define ROUTINE_ALLREDUCE mppmin_real
	1542	# include "mpp_allreduce_generic.h90"
	1543	# undef ROUTINE_ALLREDUCE
	1544	# undef DIM_0d
	1545	# define DIM_1d
	1546	# define ROUTINE_ALLREDUCE mppmin_a_real
	1547	# include "mpp_allreduce_generic.h90"
	1548	# undef ROUTINE_ALLREDUCE
	1549	# undef DIM_1d
	1550	# undef REAL_TYPE
	1551	# undef OPERATION_MIN
[3]	1552
[10314]	1553	!!----------------------------------------------------------------------
	1554	!! * mppsum_a_int, mppsum_int, mppsum_a_real, mppsum_real *
	1555	!!
	1556	!! Global sum of 1D array or a variable (integer, real or complex)
	1557	!!----------------------------------------------------------------------
	1558	!!
	1559	# define OPERATION_SUM
	1560	# define INTEGER_TYPE
	1561	# define DIM_0d
	1562	# define ROUTINE_ALLREDUCE mppsum_int
	1563	# include "mpp_allreduce_generic.h90"
	1564	# undef ROUTINE_ALLREDUCE
	1565	# undef DIM_0d
	1566	# define DIM_1d
	1567	# define ROUTINE_ALLREDUCE mppsum_a_int
	1568	# include "mpp_allreduce_generic.h90"
	1569	# undef ROUTINE_ALLREDUCE
	1570	# undef DIM_1d
	1571	# undef INTEGER_TYPE
	1572	!
	1573	# define REAL_TYPE
	1574	# define DIM_0d
	1575	# define ROUTINE_ALLREDUCE mppsum_real
	1576	# include "mpp_allreduce_generic.h90"
	1577	# undef ROUTINE_ALLREDUCE
	1578	# undef DIM_0d
	1579	# define DIM_1d
	1580	# define ROUTINE_ALLREDUCE mppsum_a_real
	1581	# include "mpp_allreduce_generic.h90"
	1582	# undef ROUTINE_ALLREDUCE
	1583	# undef DIM_1d
	1584	# undef REAL_TYPE
	1585	# undef OPERATION_SUM
[3]	1586
[10314]	1587	# define OPERATION_SUM_DD
	1588	# define COMPLEX_TYPE
	1589	# define DIM_0d
	1590	# define ROUTINE_ALLREDUCE mppsum_realdd
	1591	# include "mpp_allreduce_generic.h90"
	1592	# undef ROUTINE_ALLREDUCE
	1593	# undef DIM_0d
	1594	# define DIM_1d
	1595	# define ROUTINE_ALLREDUCE mppsum_a_realdd
	1596	# include "mpp_allreduce_generic.h90"
	1597	# undef ROUTINE_ALLREDUCE
	1598	# undef DIM_1d
	1599	# undef COMPLEX_TYPE
	1600	# undef OPERATION_SUM_DD
[3]	1601
[10314]	1602	!!----------------------------------------------------------------------
	1603	!! *** mpp_minloc2d, mpp_minloc3d, mpp_maxloc2d, mpp_maxloc3d
	1604	!!
	1605	!!----------------------------------------------------------------------
	1606	!!
	1607	# define OPERATION_MINLOC
	1608	# define DIM_2d
	1609	# define ROUTINE_LOC mpp_minloc2d
	1610	# include "mpp_loc_generic.h90"
	1611	# undef ROUTINE_LOC
	1612	# undef DIM_2d
	1613	# define DIM_3d
	1614	# define ROUTINE_LOC mpp_minloc3d
	1615	# include "mpp_loc_generic.h90"
	1616	# undef ROUTINE_LOC
	1617	# undef DIM_3d
	1618	# undef OPERATION_MINLOC
[2480]	1619
[10314]	1620	# define OPERATION_MAXLOC
	1621	# define DIM_2d
	1622	# define ROUTINE_LOC mpp_maxloc2d
	1623	# include "mpp_loc_generic.h90"
	1624	# undef ROUTINE_LOC
	1625	# undef DIM_2d
	1626	# define DIM_3d
	1627	# define ROUTINE_LOC mpp_maxloc3d
	1628	# include "mpp_loc_generic.h90"
	1629	# undef ROUTINE_LOC
	1630	# undef DIM_3d
	1631	# undef OPERATION_MAXLOC
[13]	1632
[10292]	1633	SUBROUTINE mpp_ilor( ld_switch, ldlast, kcom )
	1634	LOGICAL, INTENT(in ), DIMENSION(2) :: ld_switch
	1635	LOGICAL, INTENT(in ), OPTIONAL :: ldlast
	1636	INTEGER, INTENT(in ), OPTIONAL :: kcom ! ???
	1637	WRITE(,) 'mpp_ilor: You should not have seen this print! error?', ld_switch
	1638	END SUBROUTINE mpp_ilor
	1639
[51]	1640	SUBROUTINE mppstop
[3799]	1641	STOP ! non MPP case, just stop the run
[51]	1642	END SUBROUTINE mppstop
	1643
[2715]	1644	SUBROUTINE mpp_ini_znl( knum )
	1645	INTEGER :: knum
	1646	WRITE(,) 'mpp_ini_znl: You should not have seen this print! error?', knum
[1345]	1647	END SUBROUTINE mpp_ini_znl
	1648
[1344]	1649	SUBROUTINE mpp_comm_free( kcom )
[869]	1650	INTEGER :: kcom
[1344]	1651	WRITE(,) 'mpp_comm_free: You should not have seen this print! error?', kcom
[869]	1652	END SUBROUTINE mpp_comm_free
[9019]	1653
[3]	1654	#endif
[2715]	1655
[13]	1656	!!----------------------------------------------------------------------
[4147]	1657	!! All cases: ctl_stop, ctl_warn, get_unit, ctl_opn, ctl_nam routines
[2715]	1658	!!----------------------------------------------------------------------
	1659
	1660	SUBROUTINE ctl_stop( cd1, cd2, cd3, cd4, cd5 , &
	1661	& cd6, cd7, cd8, cd9, cd10 )
	1662	!!----------------------------------------------------------------------
	1663	!! * ROUTINE stop_opa *
	1664	!!
[3764]	1665	!! ** Purpose : print in ocean.outpput file a error message and
[2715]	1666	!! increment the error number (nstop) by one.
	1667	!!----------------------------------------------------------------------
	1668	CHARACTER(len=*), INTENT(in), OPTIONAL :: cd1, cd2, cd3, cd4, cd5
	1669	CHARACTER(len=*), INTENT(in), OPTIONAL :: cd6, cd7, cd8, cd9, cd10
	1670	!!----------------------------------------------------------------------
	1671	!
[3764]	1672	nstop = nstop + 1
[2715]	1673	IF(lwp) THEN
	1674	WRITE(numout,cform_err)
[10330]	1675	IF( PRESENT(cd1 ) ) WRITE(numout,*) TRIM(cd1)
	1676	IF( PRESENT(cd2 ) ) WRITE(numout,*) TRIM(cd2)
	1677	IF( PRESENT(cd3 ) ) WRITE(numout,*) TRIM(cd3)
	1678	IF( PRESENT(cd4 ) ) WRITE(numout,*) TRIM(cd4)
	1679	IF( PRESENT(cd5 ) ) WRITE(numout,*) TRIM(cd5)
	1680	IF( PRESENT(cd6 ) ) WRITE(numout,*) TRIM(cd6)
	1681	IF( PRESENT(cd7 ) ) WRITE(numout,*) TRIM(cd7)
	1682	IF( PRESENT(cd8 ) ) WRITE(numout,*) TRIM(cd8)
	1683	IF( PRESENT(cd9 ) ) WRITE(numout,*) TRIM(cd9)
	1684	IF( PRESENT(cd10) ) WRITE(numout,*) TRIM(cd10)
[2715]	1685	ENDIF
	1686	CALL FLUSH(numout )
	1687	IF( numstp /= -1 ) CALL FLUSH(numstp )
[9019]	1688	IF( numrun /= -1 ) CALL FLUSH(numrun )
[2715]	1689	IF( numevo_ice /= -1 ) CALL FLUSH(numevo_ice)
	1690	!
	1691	IF( cd1 == 'STOP' ) THEN
	1692	IF(lwp) WRITE(numout,*) 'huge E-R-R-O-R : immediate stop'
	1693	CALL mppstop()
	1694	ENDIF
	1695	!
	1696	END SUBROUTINE ctl_stop
	1697
	1698
	1699	SUBROUTINE ctl_warn( cd1, cd2, cd3, cd4, cd5, &
	1700	& cd6, cd7, cd8, cd9, cd10 )
	1701	!!----------------------------------------------------------------------
	1702	!! * ROUTINE stop_warn *
	1703	!!
[3764]	1704	!! ** Purpose : print in ocean.outpput file a error message and
[2715]	1705	!! increment the warning number (nwarn) by one.
	1706	!!----------------------------------------------------------------------
	1707	CHARACTER(len=*), INTENT(in), OPTIONAL :: cd1, cd2, cd3, cd4, cd5
	1708	CHARACTER(len=*), INTENT(in), OPTIONAL :: cd6, cd7, cd8, cd9, cd10
	1709	!!----------------------------------------------------------------------
[3764]	1710	!
	1711	nwarn = nwarn + 1
[2715]	1712	IF(lwp) THEN
	1713	WRITE(numout,cform_war)
[10330]	1714	IF( PRESENT(cd1 ) ) WRITE(numout,*) TRIM(cd1)
	1715	IF( PRESENT(cd2 ) ) WRITE(numout,*) TRIM(cd2)
	1716	IF( PRESENT(cd3 ) ) WRITE(numout,*) TRIM(cd3)
	1717	IF( PRESENT(cd4 ) ) WRITE(numout,*) TRIM(cd4)
	1718	IF( PRESENT(cd5 ) ) WRITE(numout,*) TRIM(cd5)
	1719	IF( PRESENT(cd6 ) ) WRITE(numout,*) TRIM(cd6)
	1720	IF( PRESENT(cd7 ) ) WRITE(numout,*) TRIM(cd7)
	1721	IF( PRESENT(cd8 ) ) WRITE(numout,*) TRIM(cd8)
	1722	IF( PRESENT(cd9 ) ) WRITE(numout,*) TRIM(cd9)
	1723	IF( PRESENT(cd10) ) WRITE(numout,*) TRIM(cd10)
[2715]	1724	ENDIF
	1725	CALL FLUSH(numout)
	1726	!
	1727	END SUBROUTINE ctl_warn
	1728
	1729
	1730	SUBROUTINE ctl_opn( knum, cdfile, cdstat, cdform, cdacce, klengh, kout, ldwp, karea )
	1731	!!----------------------------------------------------------------------
	1732	!! * ROUTINE ctl_opn *
	1733	!!
	1734	!! ** Purpose : Open file and check if required file is available.
	1735	!!
	1736	!! ** Method : Fortan open
	1737	!!----------------------------------------------------------------------
	1738	INTEGER , INTENT( out) :: knum ! logical unit to open
	1739	CHARACTER(len=*) , INTENT(in ) :: cdfile ! file name to open
	1740	CHARACTER(len=*) , INTENT(in ) :: cdstat ! disposition specifier
	1741	CHARACTER(len=*) , INTENT(in ) :: cdform ! formatting specifier
	1742	CHARACTER(len=*) , INTENT(in ) :: cdacce ! access specifier
	1743	INTEGER , INTENT(in ) :: klengh ! record length
	1744	INTEGER , INTENT(in ) :: kout ! number of logical units for write
	1745	LOGICAL , INTENT(in ) :: ldwp ! boolean term for print
	1746	INTEGER, OPTIONAL, INTENT(in ) :: karea ! proc number
[5836]	1747	!
[2715]	1748	CHARACTER(len=80) :: clfile
	1749	INTEGER :: iost
	1750	!!----------------------------------------------------------------------
[5836]	1751	!
[2715]	1752	! adapt filename
	1753	! ----------------
	1754	clfile = TRIM(cdfile)
	1755	IF( PRESENT( karea ) ) THEN
	1756	IF( karea > 1 ) WRITE(clfile, "(a,'_',i4.4)") TRIM(clfile), karea-1
	1757	ENDIF
	1758	#if defined key_agrif
	1759	IF( .NOT. Agrif_Root() ) clfile = TRIM(Agrif_CFixed())//'_'//TRIM(clfile)
	1760	knum=Agrif_Get_Unit()
	1761	#else
	1762	knum=get_unit()
	1763	#endif
[10330]	1764	IF( TRIM(cdfile) == '/dev/null' ) clfile = TRIM(cdfile) ! force the use of /dev/null
[5836]	1765	!
[2715]	1766	iost=0
	1767	IF( cdacce(1:6) == 'DIRECT' ) THEN
	1768	OPEN( UNIT=knum, FILE=clfile, FORM=cdform, ACCESS=cdacce, STATUS=cdstat, RECL=klengh, ERR=100, IOSTAT=iost )
	1769	ELSE
	1770	OPEN( UNIT=knum, FILE=clfile, FORM=cdform, ACCESS=cdacce, STATUS=cdstat , ERR=100, IOSTAT=iost )
	1771	ENDIF
[10330]	1772	IF( iost /= 0 .AND. TRIM(clfile) == '/dev/null' ) &
	1773	& OPEN(UNIT=knum,FILE='NUL', FORM=cdform, ACCESS=cdacce, STATUS=cdstat , ERR=100, IOSTAT=iost ) ! for windows
[2715]	1774	IF( iost == 0 ) THEN
	1775	IF(ldwp) THEN
	1776	WRITE(kout,*) ' file : ', clfile,' open ok'
	1777	WRITE(kout,*) ' unit = ', knum
	1778	WRITE(kout,*) ' status = ', cdstat
	1779	WRITE(kout,*) ' form = ', cdform
	1780	WRITE(kout,*) ' access = ', cdacce
	1781	WRITE(kout,*)
	1782	ENDIF
	1783	ENDIF
	1784	100 CONTINUE
	1785	IF( iost /= 0 ) THEN
	1786	IF(ldwp) THEN
	1787	WRITE(kout,*)
	1788	WRITE(kout,*) ' ===>>>> : bad opening file: ', clfile
	1789	WRITE(kout,*) ' ======= === '
	1790	WRITE(kout,*) ' unit = ', knum
	1791	WRITE(kout,*) ' status = ', cdstat
	1792	WRITE(kout,*) ' form = ', cdform
	1793	WRITE(kout,*) ' access = ', cdacce
	1794	WRITE(kout,*) ' iostat = ', iost
	1795	WRITE(kout,*) ' we stop. verify the file '
	1796	WRITE(kout,*)
[9438]	1797	ELSE !!! Force writing to make sure we get the information - at least once - in this violent STOP!!
	1798	WRITE(,)
	1799	WRITE(,) ' ===>>>> : bad opening file: ', clfile
	1800	WRITE(,) ' ======= === '
	1801	WRITE(,) ' unit = ', knum
	1802	WRITE(,) ' status = ', cdstat
	1803	WRITE(,) ' form = ', cdform
	1804	WRITE(,) ' access = ', cdacce
	1805	WRITE(,) ' iostat = ', iost
	1806	WRITE(,) ' we stop. verify the file '
	1807	WRITE(,)
[2715]	1808	ENDIF
[9019]	1809	CALL FLUSH( kout )
[2715]	1810	STOP 'ctl_opn bad opening'
	1811	ENDIF
[5836]	1812	!
[2715]	1813	END SUBROUTINE ctl_opn
	1814
[5836]	1815
[4147]	1816	SUBROUTINE ctl_nam ( kios, cdnam, ldwp )
	1817	!!----------------------------------------------------------------------
	1818	!! * ROUTINE ctl_nam *
	1819	!!
	1820	!! ** Purpose : Informations when error while reading a namelist
	1821	!!
	1822	!! ** Method : Fortan open
	1823	!!----------------------------------------------------------------------
[5836]	1824	INTEGER , INTENT(inout) :: kios ! IO status after reading the namelist
	1825	CHARACTER(len=*), INTENT(in ) :: cdnam ! group name of namelist for which error occurs
[7646]	1826	CHARACTER(len=5) :: clios ! string to convert iostat in character for print
[5836]	1827	LOGICAL , INTENT(in ) :: ldwp ! boolean term for print
[4147]	1828	!!----------------------------------------------------------------------
[5836]	1829	!
[7646]	1830	WRITE (clios, '(I5.0)') kios
[4147]	1831	IF( kios < 0 ) THEN
[5836]	1832	CALL ctl_warn( 'end of record or file while reading namelist ' &
	1833	& // TRIM(cdnam) // ' iostat = ' // TRIM(clios) )
[4147]	1834	ENDIF
[5836]	1835	!
[4147]	1836	IF( kios > 0 ) THEN
[5836]	1837	CALL ctl_stop( 'misspelled variable in namelist ' &
	1838	& // TRIM(cdnam) // ' iostat = ' // TRIM(clios) )
[4147]	1839	ENDIF
	1840	kios = 0
	1841	RETURN
[5836]	1842	!
[4147]	1843	END SUBROUTINE ctl_nam
	1844
[5836]	1845
[2715]	1846	INTEGER FUNCTION get_unit()
	1847	!!----------------------------------------------------------------------
	1848	!! * FUNCTION get_unit *
	1849	!!
	1850	!! ** Purpose : return the index of an unused logical unit
	1851	!!----------------------------------------------------------------------
[3764]	1852	LOGICAL :: llopn
[2715]	1853	!!----------------------------------------------------------------------
	1854	!
	1855	get_unit = 15 ! choose a unit that is big enough then it is not already used in NEMO
	1856	llopn = .TRUE.
	1857	DO WHILE( (get_unit < 998) .AND. llopn )
	1858	get_unit = get_unit + 1
	1859	INQUIRE( unit = get_unit, opened = llopn )
	1860	END DO
	1861	IF( (get_unit == 999) .AND. llopn ) THEN
	1862	CALL ctl_stop( 'get_unit: All logical units until 999 are used...' )
	1863	get_unit = -1
	1864	ENDIF
	1865	!
	1866	END FUNCTION get_unit
	1867
	1868	!!----------------------------------------------------------------------
[3]	1869	END MODULE lib_mpp

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