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lib_mpp.F90 in NEMO/trunk/src/OCE/LBC – NEMO

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source: NEMO/trunk/src/OCE/LBC/lib_mpp.F90 @ 14072

Last change on this file since 14072 was 14072, checked in by laurent, 3 years ago
Merging branch "2020/dev_r13648_ASINTER-04_laurent_bulk_ice", ticket #2369
Property svn:keywords set to `Id`
File size: 73.9 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.
[14072]	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
[12377]	34	!! load_nml : Read, condense and buffer namelist file into character array for use as an internal file
[2715]	35	!!----------------------------------------------------------------------
[13]	36	!!----------------------------------------------------------------------
[11536]	37	!! mpp_start : get local communicator its size and rank
[2715]	38	!! mpp_lnk : interface (defined in lbclnk) for message passing of 2d or 3d arrays (mpp_lnk_2d, mpp_lnk_3d)
[4990]	39	!! mpp_lnk_icb : interface for message passing of 2d arrays with extra halo for icebergs (mpp_lnk_2d_icb)
[6140]	40	!! mpprecv :
[9019]	41	!! mppsend :
[2715]	42	!! mppscatter :
	43	!! mppgather :
	44	!! mpp_min : generic interface for mppmin_int , mppmin_a_int , mppmin_real, mppmin_a_real
	45	!! mpp_max : generic interface for mppmax_int , mppmax_a_int , mppmax_real, mppmax_a_real
	46	!! mpp_sum : generic interface for mppsum_int , mppsum_a_int , mppsum_real, mppsum_a_real
	47	!! mpp_minloc :
	48	!! mpp_maxloc :
	49	!! mppsync :
	50	!! mppstop :
[1344]	51	!! mpp_ini_north : initialisation of north fold
[9019]	52	!! mpp_lbc_north_icb : alternative to mpp_nfd for extra outer halo with icebergs
[12377]	53	!! mpp_bcast_nml : broadcast/receive namelist character buffer from reading process to all others
[13]	54	!!----------------------------------------------------------------------
[3764]	55	USE dom_oce ! ocean space and time domain
[2715]	56	USE in_out_manager ! I/O manager
[3]	57
[13]	58	IMPLICIT NONE
[415]	59	PRIVATE
[9019]	60	!
[12377]	61	PUBLIC ctl_stop, ctl_warn, ctl_opn, ctl_nam, load_nml
[11536]	62	PUBLIC mpp_start, mppstop, mppsync, mpp_comm_free
[9019]	63	PUBLIC mpp_ini_north
[1344]	64	PUBLIC mpp_min, mpp_max, mpp_sum, mpp_minloc, mpp_maxloc
[10425]	65	PUBLIC mpp_delay_max, mpp_delay_sum, mpp_delay_rcv
[3294]	66	PUBLIC mppscatter, mppgather
[10425]	67	PUBLIC mpp_ini_znl
[13982]	68	PUBLIC mpp_ini_nc
[3764]	69	PUBLIC mppsend, mpprecv ! needed by TAM and ICB routines
[13226]	70	PUBLIC mppsend_sp, mpprecv_sp ! needed by TAM and ICB routines
	71	PUBLIC mppsend_dp, mpprecv_dp ! needed by TAM and ICB routines
[11536]	72	PUBLIC mpp_report
[12377]	73	PUBLIC mpp_bcast_nml
[11536]	74	PUBLIC tic_tac
	75	#if ! defined key_mpp_mpi
[13438]	76	PUBLIC MPI_wait
[11536]	77	PUBLIC MPI_Wtime
	78	#endif
[14072]	79
[13]	80	!! * Interfaces
	81	!! define generic interface for these routine as they are called sometimes
[1344]	82	!! with scalar arguments instead of array arguments, which causes problems
	83	!! for the compilation on AIX system as well as NEC and SGI. Ok on COMPACQ
[13]	84	INTERFACE mpp_min
[13226]	85	MODULE PROCEDURE mppmin_a_int, mppmin_int
	86	MODULE PROCEDURE mppmin_a_real_sp, mppmin_real_sp
	87	MODULE PROCEDURE mppmin_a_real_dp, mppmin_real_dp
[13]	88	END INTERFACE
	89	INTERFACE mpp_max
[13226]	90	MODULE PROCEDURE mppmax_a_int, mppmax_int
	91	MODULE PROCEDURE mppmax_a_real_sp, mppmax_real_sp
	92	MODULE PROCEDURE mppmax_a_real_dp, mppmax_real_dp
[13]	93	END INTERFACE
	94	INTERFACE mpp_sum
[13226]	95	MODULE PROCEDURE mppsum_a_int, mppsum_int
	96	MODULE PROCEDURE mppsum_realdd, mppsum_a_realdd
	97	MODULE PROCEDURE mppsum_a_real_sp, mppsum_real_sp
	98	MODULE PROCEDURE mppsum_a_real_dp, mppsum_real_dp
[13]	99	END INTERFACE
[1344]	100	INTERFACE mpp_minloc
[13226]	101	MODULE PROCEDURE mpp_minloc2d_sp ,mpp_minloc3d_sp
	102	MODULE PROCEDURE mpp_minloc2d_dp ,mpp_minloc3d_dp
[1344]	103	END INTERFACE
	104	INTERFACE mpp_maxloc
[13226]	105	MODULE PROCEDURE mpp_maxloc2d_sp ,mpp_maxloc3d_sp
	106	MODULE PROCEDURE mpp_maxloc2d_dp ,mpp_maxloc3d_dp
[1344]	107	END INTERFACE
[6490]	108
[51]	109	!! ========================= !!
	110	!! MPI variable definition !!
	111	!! ========================= !!
[11536]	112	#if defined key_mpp_mpi
[1629]	113	!$AGRIF_DO_NOT_TREAT
[2004]	114	INCLUDE 'mpif.h'
[1629]	115	!$AGRIF_END_DO_NOT_TREAT
[1344]	116	LOGICAL, PUBLIC, PARAMETER :: lk_mpp = .TRUE. !: mpp flag
[14072]	117	#else
[11536]	118	INTEGER, PUBLIC, PARAMETER :: MPI_STATUS_SIZE = 1
[13438]	119	INTEGER, PUBLIC, PARAMETER :: MPI_REAL = 4
[11536]	120	INTEGER, PUBLIC, PARAMETER :: MPI_DOUBLE_PRECISION = 8
	121	LOGICAL, PUBLIC, PARAMETER :: lk_mpp = .FALSE. !: mpp flag
	122	#endif
[3]	123
[1344]	124	INTEGER, PARAMETER :: nprocmax = 2**10 ! maximun dimension (required to be a power of 2)
[3764]	125
[10425]	126	INTEGER, PUBLIC :: mppsize ! number of process
	127	INTEGER, PUBLIC :: mpprank ! process number [ 0 - size-1 ]
[2363]	128	!$AGRIF_DO_NOT_TREAT
[9570]	129	INTEGER, PUBLIC :: mpi_comm_oce ! opa local communicator
[2363]	130	!$AGRIF_END_DO_NOT_TREAT
[3]	131
[2480]	132	INTEGER :: MPI_SUMDD
[1976]	133
[1345]	134	! variables used for zonal integration
	135	INTEGER, PUBLIC :: ncomm_znl !: communicator made by the processors on the same zonal average
[9019]	136	LOGICAL, PUBLIC :: l_znl_root !: True on the 'left'most processor on the same row
	137	INTEGER :: ngrp_znl ! group ID for the znl processors
	138	INTEGER :: ndim_rank_znl ! number of processors on the same zonal average
[2715]	139	INTEGER, DIMENSION(:), ALLOCATABLE, SAVE :: nrank_znl ! dimension ndim_rank_znl, number of the procs into the same znl domain
[3]	140
[13982]	141	! variables used for MPI3 neighbourhood collectives
	142	INTEGER, PUBLIC :: mpi_nc_com ! MPI3 neighbourhood collectives communicator
	143	INTEGER, PUBLIC :: mpi_nc_all_com ! MPI3 neighbourhood collectives communicator (with diagionals)
	144
[3764]	145	! North fold condition in mpp_mpi with jpni > 1 (PUBLIC for TAM)
[9019]	146	INTEGER, PUBLIC :: ngrp_world !: group ID for the world processors
	147	INTEGER, PUBLIC :: ngrp_opa !: group ID for the opa processors
	148	INTEGER, PUBLIC :: ngrp_north !: group ID for the northern processors (to be fold)
	149	INTEGER, PUBLIC :: ncomm_north !: communicator made by the processors belonging to ngrp_north
	150	INTEGER, PUBLIC :: ndim_rank_north !: number of 'sea' processor in the northern line (can be /= jpni !)
	151	INTEGER, PUBLIC :: njmppmax !: value of njmpp for the processors of the northern line
	152	INTEGER, PUBLIC :: north_root !: number (in the comm_opa) of proc 0 in the northern comm
	153	INTEGER, PUBLIC, DIMENSION(:), ALLOCATABLE, SAVE :: nrank_north !: dimension ndim_rank_north
[3764]	154
[10425]	155	! Communications summary report
[13216]	156	CHARACTER(len=lca), DIMENSION(:), ALLOCATABLE :: crname_lbc !: names of lbc_lnk calling routines
	157	CHARACTER(len=lca), DIMENSION(:), ALLOCATABLE :: crname_glb !: names of global comm calling routines
	158	CHARACTER(len=lca), DIMENSION(:), ALLOCATABLE :: crname_dlg !: names of delayed global comm calling routines
[10425]	159	INTEGER, PUBLIC :: ncom_stp = 0 !: copy of time step # istp
	160	INTEGER, PUBLIC :: ncom_fsbc = 1 !: copy of sbc time step # nn_fsbc
	161	INTEGER, PUBLIC :: ncom_freq !: frequency of comm diagnostic
	162	INTEGER, PUBLIC , DIMENSION(:,:), ALLOCATABLE :: ncomm_sequence !: size of communicated arrays (halos)
[10781]	163	INTEGER, PARAMETER, PUBLIC :: ncom_rec_max = 5000 !: max number of communication record
[10425]	164	INTEGER, PUBLIC :: n_sequence_lbc = 0 !: # of communicated arraysvia lbc
	165	INTEGER, PUBLIC :: n_sequence_glb = 0 !: # of global communications
[10437]	166	INTEGER, PUBLIC :: n_sequence_dlg = 0 !: # of delayed global communications
[10425]	167	INTEGER, PUBLIC :: numcom = -1 !: logical unit for communicaton report
	168	LOGICAL, PUBLIC :: l_full_nf_update = .TRUE. !: logical for a full (2lines) update of bc at North fold report
	169	INTEGER, PARAMETER, PUBLIC :: nbdelay = 2 !: number of delayed operations
	170	!: name (used as id) of allreduce-delayed operations
[10521]	171	! Warning: we must use the same character length in an array constructor (at least for gcc compiler)
	172	CHARACTER(len=32), DIMENSION(nbdelay), PUBLIC :: c_delaylist = (/ 'cflice', 'fwb ' /)
[10425]	173	!: component name where the allreduce-delayed operation is performed
	174	CHARACTER(len=3), DIMENSION(nbdelay), PUBLIC :: c_delaycpnt = (/ 'ICE' , 'OCE' /)
	175	TYPE, PUBLIC :: DELAYARR
	176	REAL( wp), POINTER, DIMENSION(:) :: z1d => NULL()
[13226]	177	COMPLEX(dp), POINTER, DIMENSION(:) :: y1d => NULL()
[10425]	178	END TYPE DELAYARR
[10817]	179	TYPE( DELAYARR ), DIMENSION(nbdelay), PUBLIC, SAVE :: todelay !: must have SAVE for default initialization of DELAYARR
	180	INTEGER, DIMENSION(nbdelay), PUBLIC :: ndelayid = -1 !: mpi request id of the delayed operations
[10425]	181
	182	! timing summary report
[13226]	183	REAL(dp), DIMENSION(2), PUBLIC :: waiting_time = 0._dp
	184	REAL(dp) , PUBLIC :: compute_time = 0._dp, elapsed_time = 0._dp
[14072]	185
[9019]	186	REAL(wp), DIMENSION(:), ALLOCATABLE, SAVE :: tampon ! buffer in case of bsend
[3]	187
[9019]	188	LOGICAL, PUBLIC :: ln_nnogather !: namelist control of northfold comms
	189	LOGICAL, PUBLIC :: l_north_nogather = .FALSE. !: internal control of northfold comms
[14072]	190
[12377]	191	!! * Substitutions
	192	# include "do_loop_substitute.h90"
[51]	193	!!----------------------------------------------------------------------
[9598]	194	!! NEMO/OCE 4.0 , NEMO Consortium (2018)
[888]	195	!! $Id$
[10068]	196	!! Software governed by the CeCILL license (see ./LICENSE)
[1344]	197	!!----------------------------------------------------------------------
[3]	198	CONTAINS
	199
[11536]	200	SUBROUTINE mpp_start( localComm )
[2715]	201	!!----------------------------------------------------------------------
[11536]	202	!! * routine mpp_start *
[3764]	203	!!
[11536]	204	!! ** Purpose : get mpi_comm_oce, mpprank and mppsize
[51]	205	!!----------------------------------------------------------------------
[6140]	206	INTEGER , OPTIONAL , INTENT(in ) :: localComm !
[2715]	207	!
[11536]	208	INTEGER :: ierr
	209	LOGICAL :: llmpi_init
[51]	210	!!----------------------------------------------------------------------
[11536]	211	#if defined key_mpp_mpi
[1344]	212	!
[11536]	213	CALL mpi_initialized ( llmpi_init, ierr )
	214	IF( ierr /= MPI_SUCCESS ) CALL ctl_stop( 'STOP', ' lib_mpp: Error in routine mpi_initialized' )
[2715]	215
[11536]	216	IF( .NOT. llmpi_init ) THEN
	217	IF( PRESENT(localComm) ) THEN
	218	WRITE(ctmp1,*) ' lib_mpp: You cannot provide a local communicator '
	219	WRITE(ctmp2,*) ' without calling MPI_Init before ! '
	220	CALL ctl_stop( 'STOP', ctmp1, ctmp2 )
	221	ENDIF
	222	CALL mpi_init( ierr )
	223	IF( ierr /= MPI_SUCCESS ) CALL ctl_stop( 'STOP', ' lib_mpp: Error in routine mpi_init' )
[2480]	224	ENDIF
[14072]	225
[3764]	226	IF( PRESENT(localComm) ) THEN
[2480]	227	IF( Agrif_Root() ) THEN
[9570]	228	mpi_comm_oce = localComm
[2480]	229	ENDIF
	230	ELSE
[11536]	231	CALL mpi_comm_dup( mpi_comm_world, mpi_comm_oce, ierr)
	232	IF( ierr /= MPI_SUCCESS ) CALL ctl_stop( 'STOP', ' lib_mpp: Error in routine mpi_comm_dup' )
[3764]	233	ENDIF
[2480]	234
[11536]	235	# if defined key_agrif
[9019]	236	IF( Agrif_Root() ) THEN
[9570]	237	CALL Agrif_MPI_Init(mpi_comm_oce)
[5656]	238	ELSE
[9570]	239	CALL Agrif_MPI_set_grid_comm(mpi_comm_oce)
[5656]	240	ENDIF
[11536]	241	# endif
[5656]	242
[9570]	243	CALL mpi_comm_rank( mpi_comm_oce, mpprank, ierr )
	244	CALL mpi_comm_size( mpi_comm_oce, mppsize, ierr )
[3764]	245	!
[1976]	246	CALL MPI_OP_CREATE(DDPDD_MPI, .TRUE., MPI_SUMDD, ierr)
	247	!
[11536]	248	#else
	249	IF( PRESENT( localComm ) ) mpi_comm_oce = localComm
	250	mppsize = 1
	251	mpprank = 0
	252	#endif
	253	END SUBROUTINE mpp_start
[3]	254
[6140]	255
[1344]	256	SUBROUTINE mppsend( ktyp, pmess, kbytes, kdest, md_req )
[51]	257	!!----------------------------------------------------------------------
	258	!! * routine mppsend *
[3764]	259	!!
[51]	260	!! ** Purpose : Send messag passing array
	261	!!
	262	!!----------------------------------------------------------------------
[1344]	263	REAL(wp), INTENT(inout) :: pmess(*) ! array of real
	264	INTEGER , INTENT(in ) :: kbytes ! size of the array pmess
	265	INTEGER , INTENT(in ) :: kdest ! receive process number
	266	INTEGER , INTENT(in ) :: ktyp ! tag of the message
	267	INTEGER , INTENT(in ) :: md_req ! argument for isend
	268	!!
	269	INTEGER :: iflag
[13226]	270	INTEGER :: mpi_working_type
[51]	271	!!----------------------------------------------------------------------
[1344]	272	!
[11536]	273	#if defined key_mpp_mpi
[13226]	274	IF (wp == dp) THEN
	275	mpi_working_type = mpi_double_precision
	276	ELSE
	277	mpi_working_type = mpi_real
	278	END IF
	279	CALL mpi_isend( pmess, kbytes, mpi_working_type, kdest , ktyp, mpi_comm_oce, md_req, iflag )
[11536]	280	#endif
[1344]	281	!
[51]	282	END SUBROUTINE mppsend
[3]	283
	284
[13226]	285	SUBROUTINE mppsend_dp( ktyp, pmess, kbytes, kdest, md_req )
	286	!!----------------------------------------------------------------------
	287	!! * routine mppsend *
	288	!!
	289	!! ** Purpose : Send messag passing array
	290	!!
	291	!!----------------------------------------------------------------------
	292	REAL(dp), INTENT(inout) :: pmess(*) ! array of real
	293	INTEGER , INTENT(in ) :: kbytes ! size of the array pmess
	294	INTEGER , INTENT(in ) :: kdest ! receive process number
	295	INTEGER , INTENT(in ) :: ktyp ! tag of the message
	296	INTEGER , INTENT(in ) :: md_req ! argument for isend
	297	!!
	298	INTEGER :: iflag
	299	!!----------------------------------------------------------------------
	300	!
	301	#if defined key_mpp_mpi
	302	CALL mpi_isend( pmess, kbytes, mpi_double_precision, kdest , ktyp, mpi_comm_oce, md_req, iflag )
	303	#endif
	304	!
	305	END SUBROUTINE mppsend_dp
	306
	307
	308	SUBROUTINE mppsend_sp( ktyp, pmess, kbytes, kdest, md_req )
	309	!!----------------------------------------------------------------------
	310	!! * routine mppsend *
	311	!!
	312	!! ** Purpose : Send messag passing array
	313	!!
	314	!!----------------------------------------------------------------------
	315	REAL(sp), INTENT(inout) :: pmess(*) ! array of real
	316	INTEGER , INTENT(in ) :: kbytes ! size of the array pmess
	317	INTEGER , INTENT(in ) :: kdest ! receive process number
	318	INTEGER , INTENT(in ) :: ktyp ! tag of the message
	319	INTEGER , INTENT(in ) :: md_req ! argument for isend
	320	!!
	321	INTEGER :: iflag
	322	!!----------------------------------------------------------------------
	323	!
	324	#if defined key_mpp_mpi
	325	CALL mpi_isend( pmess, kbytes, mpi_real, kdest , ktyp, mpi_comm_oce, md_req, iflag )
	326	#endif
	327	!
	328	END SUBROUTINE mppsend_sp
	329
	330
[3294]	331	SUBROUTINE mpprecv( ktyp, pmess, kbytes, ksource )
[51]	332	!!----------------------------------------------------------------------
	333	!! * routine mpprecv *
	334	!!
	335	!! ** Purpose : Receive messag passing array
	336	!!
	337	!!----------------------------------------------------------------------
[1344]	338	REAL(wp), INTENT(inout) :: pmess(*) ! array of real
	339	INTEGER , INTENT(in ) :: kbytes ! suze of the array pmess
	340	INTEGER , INTENT(in ) :: ktyp ! Tag of the recevied message
[3764]	341	INTEGER, OPTIONAL, INTENT(in) :: ksource ! source process number
[1344]	342	!!
[51]	343	INTEGER :: istatus(mpi_status_size)
	344	INTEGER :: iflag
[3294]	345	INTEGER :: use_source
[13226]	346	INTEGER :: mpi_working_type
[1344]	347	!!----------------------------------------------------------------------
	348	!
[11536]	349	#if defined key_mpp_mpi
[3764]	350	! If a specific process number has been passed to the receive call,
[3294]	351	! use that one. Default is to use mpi_any_source
[6140]	352	use_source = mpi_any_source
	353	IF( PRESENT(ksource) ) use_source = ksource
	354	!
[13226]	355	IF (wp == dp) THEN
	356	mpi_working_type = mpi_double_precision
	357	ELSE
	358	mpi_working_type = mpi_real
	359	END IF
	360	CALL mpi_recv( pmess, kbytes, mpi_working_type, use_source, ktyp, mpi_comm_oce, istatus, iflag )
[11536]	361	#endif
[1344]	362	!
[51]	363	END SUBROUTINE mpprecv
[3]	364
[13226]	365	SUBROUTINE mpprecv_dp( ktyp, pmess, kbytes, ksource )
	366	!!----------------------------------------------------------------------
	367	!! * routine mpprecv *
	368	!!
	369	!! ** Purpose : Receive messag passing array
	370	!!
	371	!!----------------------------------------------------------------------
	372	REAL(dp), INTENT(inout) :: pmess(*) ! array of real
	373	INTEGER , INTENT(in ) :: kbytes ! suze of the array pmess
	374	INTEGER , INTENT(in ) :: ktyp ! Tag of the recevied message
	375	INTEGER, OPTIONAL, INTENT(in) :: ksource ! source process number
	376	!!
	377	INTEGER :: istatus(mpi_status_size)
	378	INTEGER :: iflag
	379	INTEGER :: use_source
	380	!!----------------------------------------------------------------------
	381	!
	382	#if defined key_mpp_mpi
	383	! If a specific process number has been passed to the receive call,
	384	! use that one. Default is to use mpi_any_source
	385	use_source = mpi_any_source
	386	IF( PRESENT(ksource) ) use_source = ksource
	387	!
	388	CALL mpi_recv( pmess, kbytes, mpi_double_precision, use_source, ktyp, mpi_comm_oce, istatus, iflag )
	389	#endif
	390	!
	391	END SUBROUTINE mpprecv_dp
[3]	392
[13226]	393
	394	SUBROUTINE mpprecv_sp( ktyp, pmess, kbytes, ksource )
	395	!!----------------------------------------------------------------------
	396	!! * routine mpprecv *
	397	!!
	398	!! ** Purpose : Receive messag passing array
	399	!!
	400	!!----------------------------------------------------------------------
	401	REAL(sp), INTENT(inout) :: pmess(*) ! array of real
	402	INTEGER , INTENT(in ) :: kbytes ! suze of the array pmess
	403	INTEGER , INTENT(in ) :: ktyp ! Tag of the recevied message
	404	INTEGER, OPTIONAL, INTENT(in) :: ksource ! source process number
	405	!!
	406	INTEGER :: istatus(mpi_status_size)
	407	INTEGER :: iflag
	408	INTEGER :: use_source
	409	!!----------------------------------------------------------------------
	410	!
	411	#if defined key_mpp_mpi
	412	! If a specific process number has been passed to the receive call,
	413	! use that one. Default is to use mpi_any_source
	414	use_source = mpi_any_source
	415	IF( PRESENT(ksource) ) use_source = ksource
	416	!
	417	CALL mpi_recv( pmess, kbytes, mpi_real, use_source, ktyp, mpi_comm_oce, istatus, iflag )
	418	#endif
	419	!
	420	END SUBROUTINE mpprecv_sp
	421
	422
[51]	423	SUBROUTINE mppgather( ptab, kp, pio )
	424	!!----------------------------------------------------------------------
	425	!! * routine mppgather *
[3764]	426	!!
	427	!! ** Purpose : Transfert between a local subdomain array and a work
[51]	428	!! array which is distributed following the vertical level.
	429	!!
[1344]	430	!!----------------------------------------------------------------------
[6140]	431	REAL(wp), DIMENSION(jpi,jpj) , INTENT(in ) :: ptab ! subdomain input array
	432	INTEGER , INTENT(in ) :: kp ! record length
[1344]	433	REAL(wp), DIMENSION(jpi,jpj,jpnij), INTENT( out) :: pio ! subdomain input array
[51]	434	!!
[1344]	435	INTEGER :: itaille, ierror ! temporary integer
[51]	436	!!---------------------------------------------------------------------
[1344]	437	!
	438	itaille = jpi * jpj
[11536]	439	#if defined key_mpp_mpi
[1344]	440	CALL mpi_gather( ptab, itaille, mpi_double_precision, pio, itaille , &
[9570]	441	& mpi_double_precision, kp , mpi_comm_oce, ierror )
[11536]	442	#else
	443	pio(:,:,1) = ptab(:,:)
	444	#endif
[1344]	445	!
[51]	446	END SUBROUTINE mppgather
[3]	447
	448
[51]	449	SUBROUTINE mppscatter( pio, kp, ptab )
	450	!!----------------------------------------------------------------------
	451	!! * routine mppscatter *
	452	!!
[3764]	453	!! ** Purpose : Transfert between awork array which is distributed
[51]	454	!! following the vertical level and the local subdomain array.
	455	!!
	456	!!----------------------------------------------------------------------
[6140]	457	REAL(wp), DIMENSION(jpi,jpj,jpnij) :: pio ! output array
	458	INTEGER :: kp ! Tag (not used with MPI
	459	REAL(wp), DIMENSION(jpi,jpj) :: ptab ! subdomain array input
[1344]	460	!!
	461	INTEGER :: itaille, ierror ! temporary integer
[51]	462	!!---------------------------------------------------------------------
[1344]	463	!
[6140]	464	itaille = jpi * jpj
[1344]	465	!
[11536]	466	#if defined key_mpp_mpi
[1344]	467	CALL mpi_scatter( pio, itaille, mpi_double_precision, ptab, itaille , &
[9570]	468	& mpi_double_precision, kp , mpi_comm_oce, ierror )
[11536]	469	#else
	470	ptab(:,:) = pio(:,:,1)
	471	#endif
[1344]	472	!
[51]	473	END SUBROUTINE mppscatter
[3]	474
[14072]	475
[10425]	476	SUBROUTINE mpp_delay_sum( cdname, cdelay, y_in, pout, ldlast, kcom )
	477	!!----------------------------------------------------------------------
	478	!! * routine mpp_delay_sum *
[1344]	479	!!
[10425]	480	!! ** Purpose : performed delayed mpp_sum, the result is received on next call
	481	!!
[1344]	482	!!----------------------------------------------------------------------
[10425]	483	CHARACTER(len=*), INTENT(in ) :: cdname ! name of the calling subroutine
	484	CHARACTER(len=*), INTENT(in ) :: cdelay ! name (used as id) of the delayed operation
[13226]	485	COMPLEX(dp), INTENT(in ), DIMENSION(:) :: y_in
[10425]	486	REAL(wp), INTENT( out), DIMENSION(:) :: pout
	487	LOGICAL, INTENT(in ) :: ldlast ! true if this is the last time we call this routine
	488	INTEGER, INTENT(in ), OPTIONAL :: kcom
[1344]	489	!!
[10425]	490	INTEGER :: ji, isz
	491	INTEGER :: idvar
	492	INTEGER :: ierr, ilocalcomm
[13226]	493	COMPLEX(dp), ALLOCATABLE, DIMENSION(:) :: ytmp
[1344]	494	!!----------------------------------------------------------------------
[11536]	495	#if defined key_mpp_mpi
[9570]	496	ilocalcomm = mpi_comm_oce
[9019]	497	IF( PRESENT(kcom) ) ilocalcomm = kcom
[3]	498
[10425]	499	isz = SIZE(y_in)
[14072]	500
[10437]	501	IF( narea == 1 .AND. numcom == -1 ) CALL mpp_report( cdname, ld_dlg = .TRUE. )
[13]	502
[10425]	503	idvar = -1
	504	DO ji = 1, nbdelay
	505	IF( TRIM(cdelay) == TRIM(c_delaylist(ji)) ) idvar = ji
	506	END DO
	507	IF ( idvar == -1 ) CALL ctl_stop( 'STOP',' mpp_delay_sum : please add a new delayed exchange for '//TRIM(cdname) )
	508
	509	IF ( ndelayid(idvar) == 0 ) THEN ! first call with restart: %z1d defined in iom_delay_rst
	510	! --------------------------
	511	IF ( SIZE(todelay(idvar)%z1d) /= isz ) THEN ! Check dimension coherence
	512	IF(lwp) WRITE(numout,*) ' WARNING: the nb of delayed variables in restart file is not the model one'
	513	DEALLOCATE(todelay(idvar)%z1d)
	514	ndelayid(idvar) = -1 ! do as if we had no restart
	515	ELSE
	516	ALLOCATE(todelay(idvar)%y1d(isz))
	517	todelay(idvar)%y1d(:) = CMPLX(todelay(idvar)%z1d(:), 0., wp) ! create %y1d, complex variable needed by mpi_sumdd
[13636]	518	ndelayid(idvar) = MPI_REQUEST_NULL ! initialised request to a valid value
[10425]	519	END IF
	520	ENDIF
[14072]	521
[10425]	522	IF( ndelayid(idvar) == -1 ) THEN ! first call without restart: define %y1d and %z1d from y_in with blocking allreduce
	523	! --------------------------
	524	ALLOCATE(todelay(idvar)%z1d(isz), todelay(idvar)%y1d(isz)) ! allocate also %z1d as used for the restart
	525	CALL mpi_allreduce( y_in(:), todelay(idvar)%y1d(:), isz, MPI_DOUBLE_COMPLEX, mpi_sumdd, ilocalcomm, ierr ) ! get %y1d
[13636]	526	ndelayid(idvar) = MPI_REQUEST_NULL
[10425]	527	ENDIF
	528
[13636]	529	CALL mpp_delay_rcv( idvar ) ! make sure %z1d is received
[10425]	530
	531	! send back pout from todelay(idvar)%z1d defined at previous call
	532	pout(:) = todelay(idvar)%z1d(:)
	533
	534	! send y_in into todelay(idvar)%y1d with a non-blocking communication
[11536]	535	# if defined key_mpi2
[10526]	536	IF( ln_timing ) CALL tic_tac( .TRUE., ld_global = .TRUE.)
[12512]	537	CALL mpi_allreduce( y_in(:), todelay(idvar)%y1d(:), isz, MPI_DOUBLE_COMPLEX, mpi_sumdd, ilocalcomm, ierr )
[13636]	538	ndelayid(idvar) = MPI_REQUEST_NULL
[10526]	539	IF( ln_timing ) CALL tic_tac(.FALSE., ld_global = .TRUE.)
[11536]	540	# else
	541	CALL mpi_iallreduce( y_in(:), todelay(idvar)%y1d(:), isz, MPI_DOUBLE_COMPLEX, mpi_sumdd, ilocalcomm, ndelayid(idvar), ierr )
	542	# endif
[10526]	543	#else
[11536]	544	pout(:) = REAL(y_in(:), wp)
[10526]	545	#endif
[10425]	546
	547	END SUBROUTINE mpp_delay_sum
	548
[14072]	549
[10425]	550	SUBROUTINE mpp_delay_max( cdname, cdelay, p_in, pout, ldlast, kcom )
[9019]	551	!!----------------------------------------------------------------------
[10425]	552	!! * routine mpp_delay_max *
[9019]	553	!!
[10425]	554	!! ** Purpose : performed delayed mpp_max, the result is received on next call
[9019]	555	!!
	556	!!----------------------------------------------------------------------
[10425]	557	CHARACTER(len=*), INTENT(in ) :: cdname ! name of the calling subroutine
	558	CHARACTER(len=*), INTENT(in ) :: cdelay ! name (used as id) of the delayed operation
[14072]	559	REAL(wp), INTENT(in ), DIMENSION(:) :: p_in !
	560	REAL(wp), INTENT( out), DIMENSION(:) :: pout !
[10425]	561	LOGICAL, INTENT(in ) :: ldlast ! true if this is the last time we call this routine
	562	INTEGER, INTENT(in ), OPTIONAL :: kcom
[9019]	563	!!
[10425]	564	INTEGER :: ji, isz
	565	INTEGER :: idvar
	566	INTEGER :: ierr, ilocalcomm
[13226]	567	INTEGER :: MPI_TYPE
[9019]	568	!!----------------------------------------------------------------------
[14072]	569
[11536]	570	#if defined key_mpp_mpi
[13226]	571	if( wp == dp ) then
	572	MPI_TYPE = MPI_DOUBLE_PRECISION
	573	else if ( wp == sp ) then
	574	MPI_TYPE = MPI_REAL
	575	else
	576	CALL ctl_stop( "Error defining type, wp is neither dp nor sp" )
[14072]	577
[13226]	578	end if
	579
[9570]	580	ilocalcomm = mpi_comm_oce
[9019]	581	IF( PRESENT(kcom) ) ilocalcomm = kcom
[6140]	582
[10425]	583	isz = SIZE(p_in)
[9019]	584
[10437]	585	IF( narea == 1 .AND. numcom == -1 ) CALL mpp_report( cdname, ld_dlg = .TRUE. )
[13]	586
[10425]	587	idvar = -1
	588	DO ji = 1, nbdelay
	589	IF( TRIM(cdelay) == TRIM(c_delaylist(ji)) ) idvar = ji
	590	END DO
	591	IF ( idvar == -1 ) CALL ctl_stop( 'STOP',' mpp_delay_max : please add a new delayed exchange for '//TRIM(cdname) )
[3]	592
[10425]	593	IF ( ndelayid(idvar) == 0 ) THEN ! first call with restart: %z1d defined in iom_delay_rst
	594	! --------------------------
	595	IF ( SIZE(todelay(idvar)%z1d) /= isz ) THEN ! Check dimension coherence
	596	IF(lwp) WRITE(numout,*) ' WARNING: the nb of delayed variables in restart file is not the model one'
	597	DEALLOCATE(todelay(idvar)%z1d)
	598	ndelayid(idvar) = -1 ! do as if we had no restart
[13636]	599	ELSE
	600	ndelayid(idvar) = MPI_REQUEST_NULL
[10425]	601	END IF
	602	ENDIF
[13]	603
[10425]	604	IF( ndelayid(idvar) == -1 ) THEN ! first call without restart: define %z1d from p_in with a blocking allreduce
	605	! --------------------------
	606	ALLOCATE(todelay(idvar)%z1d(isz))
	607	CALL mpi_allreduce( p_in(:), todelay(idvar)%z1d(:), isz, MPI_DOUBLE_PRECISION, mpi_max, ilocalcomm, ierr ) ! get %z1d
[13636]	608	ndelayid(idvar) = MPI_REQUEST_NULL
[10425]	609	ENDIF
[3]	610
[13636]	611	CALL mpp_delay_rcv( idvar ) ! make sure %z1d is received
[3]	612
[10425]	613	! send back pout from todelay(idvar)%z1d defined at previous call
	614	pout(:) = todelay(idvar)%z1d(:)
[13]	615
[10425]	616	! send p_in into todelay(idvar)%z1d with a non-blocking communication
[13636]	617	! (PM) Should we get rid of MPI2 option ? MPI3 was release in 2013. Who is still using MPI2 ?
[11536]	618	# if defined key_mpi2
[10526]	619	IF( ln_timing ) CALL tic_tac( .TRUE., ld_global = .TRUE.)
[13636]	620	CALL mpi_allreduce( p_in(:), todelay(idvar)%z1d(:), isz, MPI_TYPE, mpi_max, ilocalcomm, ierr )
[10526]	621	IF( ln_timing ) CALL tic_tac(.FALSE., ld_global = .TRUE.)
[11536]	622	# else
[13226]	623	CALL mpi_iallreduce( p_in(:), todelay(idvar)%z1d(:), isz, MPI_TYPE, mpi_max, ilocalcomm, ndelayid(idvar), ierr )
[11536]	624	# endif
[10526]	625	#else
[11536]	626	pout(:) = p_in(:)
[10526]	627	#endif
[10425]	628
	629	END SUBROUTINE mpp_delay_max
	630
[14072]	631
[10425]	632	SUBROUTINE mpp_delay_rcv( kid )
	633	!!----------------------------------------------------------------------
	634	!! * routine mpp_delay_rcv *
[1344]	635	!!
[14072]	636	!! ** Purpose : force barrier for delayed mpp (needed for restart)
[1344]	637	!!
[10425]	638	!!----------------------------------------------------------------------
[14072]	639	INTEGER,INTENT(in ) :: kid
[10425]	640	INTEGER :: ierr
	641	!!----------------------------------------------------------------------
[11536]	642	#if defined key_mpp_mpi
[13636]	643	IF( ln_timing ) CALL tic_tac( .TRUE., ld_global = .TRUE.)
	644	! test on ndelayid(kid) useless as mpi_wait return immediatly if the request handle is MPI_REQUEST_NULL
	645	CALL mpi_wait( ndelayid(kid), MPI_STATUS_IGNORE, ierr ) ! after this ndelayid(kid) = MPI_REQUEST_NULL
	646	IF( ln_timing ) CALL tic_tac( .FALSE., ld_global = .TRUE.)
	647	IF( ASSOCIATED(todelay(kid)%y1d) ) todelay(kid)%z1d(:) = REAL(todelay(kid)%y1d(:), wp) ! define %z1d from %y1d
[10526]	648	#endif
[10425]	649	END SUBROUTINE mpp_delay_rcv
[3]	650
[12377]	651	SUBROUTINE mpp_bcast_nml( cdnambuff , kleng )
	652	CHARACTER(LEN=:) , ALLOCATABLE, INTENT(INOUT) :: cdnambuff
	653	INTEGER , INTENT(INOUT) :: kleng
	654	!!----------------------------------------------------------------------
	655	!! * routine mpp_bcast_nml *
	656	!!
	657	!! ** Purpose : broadcast namelist character buffer
	658	!!
	659	!!----------------------------------------------------------------------
	660	!!
	661	INTEGER :: iflag
	662	!!----------------------------------------------------------------------
	663	!
	664	#if defined key_mpp_mpi
	665	call MPI_BCAST(kleng, 1, MPI_INT, 0, mpi_comm_oce, iflag)
	666	call MPI_BARRIER(mpi_comm_oce, iflag)
	667	!$AGRIF_DO_NOT_TREAT
	668	IF ( .NOT. ALLOCATED(cdnambuff) ) ALLOCATE( CHARACTER(LEN=kleng) :: cdnambuff )
	669	!$AGRIF_END_DO_NOT_TREAT
	670	call MPI_BCAST(cdnambuff, kleng, MPI_CHARACTER, 0, mpi_comm_oce, iflag)
	671	call MPI_BARRIER(mpi_comm_oce, iflag)
	672	#endif
	673	!
	674	END SUBROUTINE mpp_bcast_nml
	675
[14072]	676
[10425]	677	!!----------------------------------------------------------------------
	678	!! * mppmax_a_int, mppmax_int, mppmax_a_real, mppmax_real *
[14072]	679	!!
[10425]	680	!!----------------------------------------------------------------------
	681	!!
	682	# define OPERATION_MAX
	683	# define INTEGER_TYPE
	684	# define DIM_0d
	685	# define ROUTINE_ALLREDUCE mppmax_int
	686	# include "mpp_allreduce_generic.h90"
	687	# undef ROUTINE_ALLREDUCE
	688	# undef DIM_0d
	689	# define DIM_1d
	690	# define ROUTINE_ALLREDUCE mppmax_a_int
	691	# include "mpp_allreduce_generic.h90"
	692	# undef ROUTINE_ALLREDUCE
	693	# undef DIM_1d
	694	# undef INTEGER_TYPE
	695	!
[13226]	696	!!
	697	!! ---- SINGLE PRECISION VERSIONS
	698	!!
	699	# define SINGLE_PRECISION
[10425]	700	# define REAL_TYPE
	701	# define DIM_0d
[13226]	702	# define ROUTINE_ALLREDUCE mppmax_real_sp
[10425]	703	# include "mpp_allreduce_generic.h90"
	704	# undef ROUTINE_ALLREDUCE
	705	# undef DIM_0d
	706	# define DIM_1d
[13226]	707	# define ROUTINE_ALLREDUCE mppmax_a_real_sp
[10425]	708	# include "mpp_allreduce_generic.h90"
	709	# undef ROUTINE_ALLREDUCE
	710	# undef DIM_1d
[13226]	711	# undef SINGLE_PRECISION
	712	!!
	713	!!
	714	!! ---- DOUBLE PRECISION VERSIONS
	715	!!
	716	!
	717	# define DIM_0d
	718	# define ROUTINE_ALLREDUCE mppmax_real_dp
	719	# include "mpp_allreduce_generic.h90"
	720	# undef ROUTINE_ALLREDUCE
	721	# undef DIM_0d
	722	# define DIM_1d
	723	# define ROUTINE_ALLREDUCE mppmax_a_real_dp
	724	# include "mpp_allreduce_generic.h90"
	725	# undef ROUTINE_ALLREDUCE
	726	# undef DIM_1d
[10425]	727	# undef REAL_TYPE
	728	# undef OPERATION_MAX
	729	!!----------------------------------------------------------------------
	730	!! * mppmin_a_int, mppmin_int, mppmin_a_real, mppmin_real *
[14072]	731	!!
[10425]	732	!!----------------------------------------------------------------------
	733	!!
	734	# define OPERATION_MIN
	735	# define INTEGER_TYPE
	736	# define DIM_0d
	737	# define ROUTINE_ALLREDUCE mppmin_int
	738	# include "mpp_allreduce_generic.h90"
	739	# undef ROUTINE_ALLREDUCE
	740	# undef DIM_0d
	741	# define DIM_1d
	742	# define ROUTINE_ALLREDUCE mppmin_a_int
	743	# include "mpp_allreduce_generic.h90"
	744	# undef ROUTINE_ALLREDUCE
	745	# undef DIM_1d
	746	# undef INTEGER_TYPE
	747	!
[13226]	748	!!
	749	!! ---- SINGLE PRECISION VERSIONS
	750	!!
	751	# define SINGLE_PRECISION
[10425]	752	# define REAL_TYPE
	753	# define DIM_0d
[13226]	754	# define ROUTINE_ALLREDUCE mppmin_real_sp
[10425]	755	# include "mpp_allreduce_generic.h90"
	756	# undef ROUTINE_ALLREDUCE
	757	# undef DIM_0d
	758	# define DIM_1d
[13226]	759	# define ROUTINE_ALLREDUCE mppmin_a_real_sp
[10425]	760	# include "mpp_allreduce_generic.h90"
	761	# undef ROUTINE_ALLREDUCE
	762	# undef DIM_1d
[13226]	763	# undef SINGLE_PRECISION
	764	!!
	765	!! ---- DOUBLE PRECISION VERSIONS
	766	!!
	767
	768	# define DIM_0d
	769	# define ROUTINE_ALLREDUCE mppmin_real_dp
	770	# include "mpp_allreduce_generic.h90"
	771	# undef ROUTINE_ALLREDUCE
	772	# undef DIM_0d
	773	# define DIM_1d
	774	# define ROUTINE_ALLREDUCE mppmin_a_real_dp
	775	# include "mpp_allreduce_generic.h90"
	776	# undef ROUTINE_ALLREDUCE
	777	# undef DIM_1d
[10425]	778	# undef REAL_TYPE
	779	# undef OPERATION_MIN
[869]	780
[10425]	781	!!----------------------------------------------------------------------
	782	!! * mppsum_a_int, mppsum_int, mppsum_a_real, mppsum_real *
[14072]	783	!!
[10425]	784	!! Global sum of 1D array or a variable (integer, real or complex)
	785	!!----------------------------------------------------------------------
	786	!!
	787	# define OPERATION_SUM
	788	# define INTEGER_TYPE
	789	# define DIM_0d
	790	# define ROUTINE_ALLREDUCE mppsum_int
	791	# include "mpp_allreduce_generic.h90"
	792	# undef ROUTINE_ALLREDUCE
	793	# undef DIM_0d
	794	# define DIM_1d
	795	# define ROUTINE_ALLREDUCE mppsum_a_int
	796	# include "mpp_allreduce_generic.h90"
	797	# undef ROUTINE_ALLREDUCE
	798	# undef DIM_1d
	799	# undef INTEGER_TYPE
[13226]	800
	801	!!
	802	!! ---- SINGLE PRECISION VERSIONS
	803	!!
	804	# define OPERATION_SUM
	805	# define SINGLE_PRECISION
[10425]	806	# define REAL_TYPE
	807	# define DIM_0d
[13226]	808	# define ROUTINE_ALLREDUCE mppsum_real_sp
[10425]	809	# include "mpp_allreduce_generic.h90"
	810	# undef ROUTINE_ALLREDUCE
	811	# undef DIM_0d
	812	# define DIM_1d
[13226]	813	# define ROUTINE_ALLREDUCE mppsum_a_real_sp
[10425]	814	# include "mpp_allreduce_generic.h90"
	815	# undef ROUTINE_ALLREDUCE
	816	# undef DIM_1d
	817	# undef REAL_TYPE
	818	# undef OPERATION_SUM
	819
[13226]	820	# undef SINGLE_PRECISION
	821
	822	!!
	823	!! ---- DOUBLE PRECISION VERSIONS
	824	!!
	825	# define OPERATION_SUM
	826	# define REAL_TYPE
	827	# define DIM_0d
	828	# define ROUTINE_ALLREDUCE mppsum_real_dp
	829	# include "mpp_allreduce_generic.h90"
	830	# undef ROUTINE_ALLREDUCE
	831	# undef DIM_0d
	832	# define DIM_1d
	833	# define ROUTINE_ALLREDUCE mppsum_a_real_dp
	834	# include "mpp_allreduce_generic.h90"
	835	# undef ROUTINE_ALLREDUCE
	836	# undef DIM_1d
	837	# undef REAL_TYPE
	838	# undef OPERATION_SUM
	839
[10425]	840	# define OPERATION_SUM_DD
	841	# define COMPLEX_TYPE
	842	# define DIM_0d
	843	# define ROUTINE_ALLREDUCE mppsum_realdd
	844	# include "mpp_allreduce_generic.h90"
	845	# undef ROUTINE_ALLREDUCE
	846	# undef DIM_0d
	847	# define DIM_1d
	848	# define ROUTINE_ALLREDUCE mppsum_a_realdd
	849	# include "mpp_allreduce_generic.h90"
	850	# undef ROUTINE_ALLREDUCE
	851	# undef DIM_1d
	852	# undef COMPLEX_TYPE
	853	# undef OPERATION_SUM_DD
	854
	855	!!----------------------------------------------------------------------
	856	!! *** mpp_minloc2d, mpp_minloc3d, mpp_maxloc2d, mpp_maxloc3d
[14072]	857	!!
[10425]	858	!!----------------------------------------------------------------------
	859	!!
[13226]	860	!!
	861	!! ---- SINGLE PRECISION VERSIONS
	862	!!
	863	# define SINGLE_PRECISION
[10425]	864	# define OPERATION_MINLOC
	865	# define DIM_2d
[13226]	866	# define ROUTINE_LOC mpp_minloc2d_sp
[10425]	867	# include "mpp_loc_generic.h90"
	868	# undef ROUTINE_LOC
	869	# undef DIM_2d
	870	# define DIM_3d
[13226]	871	# define ROUTINE_LOC mpp_minloc3d_sp
[10425]	872	# include "mpp_loc_generic.h90"
	873	# undef ROUTINE_LOC
	874	# undef DIM_3d
	875	# undef OPERATION_MINLOC
	876
	877	# define OPERATION_MAXLOC
	878	# define DIM_2d
[13226]	879	# define ROUTINE_LOC mpp_maxloc2d_sp
[10425]	880	# include "mpp_loc_generic.h90"
	881	# undef ROUTINE_LOC
	882	# undef DIM_2d
	883	# define DIM_3d
[13226]	884	# define ROUTINE_LOC mpp_maxloc3d_sp
[10425]	885	# include "mpp_loc_generic.h90"
	886	# undef ROUTINE_LOC
	887	# undef DIM_3d
	888	# undef OPERATION_MAXLOC
[13226]	889	# undef SINGLE_PRECISION
	890	!!
	891	!! ---- DOUBLE PRECISION VERSIONS
	892	!!
	893	# define OPERATION_MINLOC
	894	# define DIM_2d
	895	# define ROUTINE_LOC mpp_minloc2d_dp
	896	# include "mpp_loc_generic.h90"
	897	# undef ROUTINE_LOC
	898	# undef DIM_2d
	899	# define DIM_3d
	900	# define ROUTINE_LOC mpp_minloc3d_dp
	901	# include "mpp_loc_generic.h90"
	902	# undef ROUTINE_LOC
	903	# undef DIM_3d
	904	# undef OPERATION_MINLOC
[10425]	905
[13226]	906	# define OPERATION_MAXLOC
	907	# define DIM_2d
	908	# define ROUTINE_LOC mpp_maxloc2d_dp
	909	# include "mpp_loc_generic.h90"
	910	# undef ROUTINE_LOC
	911	# undef DIM_2d
	912	# define DIM_3d
	913	# define ROUTINE_LOC mpp_maxloc3d_dp
	914	# include "mpp_loc_generic.h90"
	915	# undef ROUTINE_LOC
	916	# undef DIM_3d
	917	# undef OPERATION_MAXLOC
	918
	919
[1344]	920	SUBROUTINE mppsync()
	921	!!----------------------------------------------------------------------
	922	!! * routine mppsync *
[3764]	923	!!
[1344]	924	!! ** Purpose : Massively parallel processors, synchroneous
	925	!!
	926	!!-----------------------------------------------------------------------
	927	INTEGER :: ierror
	928	!!-----------------------------------------------------------------------
	929	!
[11536]	930	#if defined key_mpp_mpi
[9570]	931	CALL mpi_barrier( mpi_comm_oce, ierror )
[11536]	932	#endif
[1344]	933	!
	934	END SUBROUTINE mppsync
[3]	935
	936
[14072]	937	SUBROUTINE mppstop( ld_abort )
[1344]	938	!!----------------------------------------------------------------------
	939	!! * routine mppstop *
[3764]	940	!!
[3294]	941	!! ** purpose : Stop massively parallel processors method
[1344]	942	!!
	943	!!----------------------------------------------------------------------
[11536]	944	LOGICAL, OPTIONAL, INTENT(in) :: ld_abort ! source process number
	945	LOGICAL :: ll_abort
[1344]	946	INTEGER :: info
	947	!!----------------------------------------------------------------------
[11536]	948	ll_abort = .FALSE.
	949	IF( PRESENT(ld_abort) ) ll_abort = ld_abort
[1344]	950	!
[11536]	951	#if defined key_mpp_mpi
	952	IF(ll_abort) THEN
[10425]	953	CALL mpi_abort( MPI_COMM_WORLD )
	954	ELSE
	955	CALL mppsync
	956	CALL mpi_finalize( info )
	957	ENDIF
[11536]	958	#endif
	959	IF( ll_abort ) STOP 123
[1344]	960	!
	961	END SUBROUTINE mppstop
[3]	962
	963
[1344]	964	SUBROUTINE mpp_comm_free( kcom )
	965	!!----------------------------------------------------------------------
	966	INTEGER, INTENT(in) :: kcom
	967	!!
	968	INTEGER :: ierr
	969	!!----------------------------------------------------------------------
	970	!
[11536]	971	#if defined key_mpp_mpi
[1344]	972	CALL MPI_COMM_FREE(kcom, ierr)
[11536]	973	#endif
[1344]	974	!
	975	END SUBROUTINE mpp_comm_free
[3]	976
[869]	977
[2715]	978	SUBROUTINE mpp_ini_znl( kumout )
[1345]	979	!!----------------------------------------------------------------------
	980	!! * routine mpp_ini_znl *
	981	!!
	982	!! ** Purpose : Initialize special communicator for computing zonal sum
	983	!!
	984	!! ** Method : - Look for processors in the same row
	985	!! - Put their number in nrank_znl
	986	!! - Create group for the znl processors
	987	!! - Create a communicator for znl processors
	988	!! - Determine if processor should write znl files
	989	!!
	990	!! ** output
	991	!! ndim_rank_znl = number of processors on the same row
	992	!! ngrp_znl = group ID for the znl processors
	993	!! ncomm_znl = communicator for the ice procs.
	994	!! n_znl_root = number (in the world) of proc 0 in the ice comm.
	995	!!
	996	!!----------------------------------------------------------------------
[2715]	997	INTEGER, INTENT(in) :: kumout ! ocean.output logical units
[1345]	998	!
[2715]	999	INTEGER :: jproc ! dummy loop integer
	1000	INTEGER :: ierr, ii ! local integer
	1001	INTEGER, ALLOCATABLE, DIMENSION(:) :: kwork
	1002	!!----------------------------------------------------------------------
[11536]	1003	#if defined key_mpp_mpi
[1345]	1004	!-$$ WRITE (numout,*) 'mpp_ini_znl ', nproc, ' - ngrp_world : ', ngrp_world
	1005	!-$$ WRITE (numout,*) 'mpp_ini_znl ', nproc, ' - mpi_comm_world : ', mpi_comm_world
[9570]	1006	!-$$ WRITE (numout,*) 'mpp_ini_znl ', nproc, ' - mpi_comm_oce : ', mpi_comm_oce
[1345]	1007	!
[2715]	1008	ALLOCATE( kwork(jpnij), STAT=ierr )
[11536]	1009	IF( ierr /= 0 ) CALL ctl_stop( 'STOP', 'mpp_ini_znl : failed to allocate 1D array of length jpnij')
[2715]	1010
	1011	IF( jpnj == 1 ) THEN
[1345]	1012	ngrp_znl = ngrp_world
[9570]	1013	ncomm_znl = mpi_comm_oce
[1345]	1014	ELSE
	1015	!
[9570]	1016	CALL MPI_ALLGATHER ( njmpp, 1, mpi_integer, kwork, 1, mpi_integer, mpi_comm_oce, ierr )
[1345]	1017	!-$$ WRITE (numout,*) 'mpp_ini_znl ', nproc, ' - kwork pour njmpp : ', kwork
	1018	!-$$ CALL flush(numout)
	1019	!
	1020	! Count number of processors on the same row
	1021	ndim_rank_znl = 0
	1022	DO jproc=1,jpnij
	1023	IF ( kwork(jproc) == njmpp ) THEN
	1024	ndim_rank_znl = ndim_rank_znl + 1
	1025	ENDIF
	1026	END DO
	1027	!-$$ WRITE (numout,*) 'mpp_ini_znl ', nproc, ' - ndim_rank_znl : ', ndim_rank_znl
	1028	!-$$ CALL flush(numout)
	1029	! Allocate the right size to nrank_znl
[1441]	1030	IF (ALLOCATED (nrank_znl)) DEALLOCATE(nrank_znl)
[1345]	1031	ALLOCATE(nrank_znl(ndim_rank_znl))
[3764]	1032	ii = 0
[1345]	1033	nrank_znl (:) = 0
	1034	DO jproc=1,jpnij
	1035	IF ( kwork(jproc) == njmpp) THEN
	1036	ii = ii + 1
[3764]	1037	nrank_znl(ii) = jproc -1
[1345]	1038	ENDIF
	1039	END DO
	1040	!-$$ WRITE (numout,*) 'mpp_ini_znl ', nproc, ' - nrank_znl : ', nrank_znl
	1041	!-$$ CALL flush(numout)
	1042
	1043	! Create the opa group
[9570]	1044	CALL MPI_COMM_GROUP(mpi_comm_oce,ngrp_opa,ierr)
[1345]	1045	!-$$ WRITE (numout,*) 'mpp_ini_znl ', nproc, ' - ngrp_opa : ', ngrp_opa
	1046	!-$$ CALL flush(numout)
	1047
	1048	! Create the znl group from the opa group
	1049	CALL MPI_GROUP_INCL ( ngrp_opa, ndim_rank_znl, nrank_znl, ngrp_znl, ierr )
	1050	!-$$ WRITE (numout,*) 'mpp_ini_znl ', nproc, ' - ngrp_znl ', ngrp_znl
	1051	!-$$ CALL flush(numout)
	1052
	1053	! Create the znl communicator from the opa communicator, ie the pool of procs in the same row
[9570]	1054	CALL MPI_COMM_CREATE ( mpi_comm_oce, ngrp_znl, ncomm_znl, ierr )
[1345]	1055	!-$$ WRITE (numout,*) 'mpp_ini_znl ', nproc, ' - ncomm_znl ', ncomm_znl
	1056	!-$$ CALL flush(numout)
	1057	!
	1058	END IF
	1059
	1060	! Determines if processor if the first (starting from i=1) on the row
[3764]	1061	IF ( jpni == 1 ) THEN
[1345]	1062	l_znl_root = .TRUE.
	1063	ELSE
	1064	l_znl_root = .FALSE.
	1065	kwork (1) = nimpp
[10425]	1066	CALL mpp_min ( 'lib_mpp', kwork(1), kcom = ncomm_znl)
[1345]	1067	IF ( nimpp == kwork(1)) l_znl_root = .TRUE.
	1068	END IF
	1069
[2715]	1070	DEALLOCATE(kwork)
[11536]	1071	#endif
[2715]	1072
[1345]	1073	END SUBROUTINE mpp_ini_znl
	1074
[13982]	1075	SUBROUTINE mpp_ini_nc
	1076	!!----------------------------------------------------------------------
	1077	!! * routine mpp_ini_nc *
	1078	!!
	1079	!! ** Purpose : Initialize special communicators for MPI3 neighbourhood
	1080	!! collectives
	1081	!!
[14072]	1082	!! ** Method : - Create graph communicators starting from the processes
[13982]	1083	!! distribution along i and j directions
	1084	!
	1085	!! ** output
	1086	!! mpi_nc_com = MPI3 neighbourhood collectives communicator
	1087	!! mpi_nc_all_com = MPI3 neighbourhood collectives communicator
	1088	!! (with diagonals)
	1089	!!
	1090	!!----------------------------------------------------------------------
	1091	INTEGER, DIMENSION(:), ALLOCATABLE :: ineigh, ineighalls, ineighallr
	1092	INTEGER :: ideg, idegalls, idegallr, icont, icont1
	1093	INTEGER :: ierr
	1094	LOGICAL, PARAMETER :: ireord = .FALSE.
[1345]	1095
[13982]	1096	#if defined key_mpp_mpi
	1097
	1098	ideg = 0
	1099	idegalls = 0
	1100	idegallr = 0
	1101	icont = 0
	1102	icont1 = 0
	1103
	1104	IF (nbondi .eq. 1) THEN
	1105	ideg = ideg + 1
	1106	ELSEIF (nbondi .eq. -1) THEN
	1107	ideg = ideg + 1
	1108	ELSEIF (nbondi .eq. 0) THEN
	1109	ideg = ideg + 2
	1110	ENDIF
	1111
	1112	IF (nbondj .eq. 1) THEN
	1113	ideg = ideg + 1
	1114	ELSEIF (nbondj .eq. -1) THEN
	1115	ideg = ideg + 1
	1116	ELSEIF (nbondj .eq. 0) THEN
	1117	ideg = ideg + 2
	1118	ENDIF
	1119
	1120	idegalls = ideg
	1121	idegallr = ideg
	1122
	1123	IF (nones .ne. -1) idegalls = idegalls + 1
	1124	IF (nonws .ne. -1) idegalls = idegalls + 1
	1125	IF (noses .ne. -1) idegalls = idegalls + 1
	1126	IF (nosws .ne. -1) idegalls = idegalls + 1
	1127	IF (noner .ne. -1) idegallr = idegallr + 1
	1128	IF (nonwr .ne. -1) idegallr = idegallr + 1
	1129	IF (noser .ne. -1) idegallr = idegallr + 1
	1130	IF (noswr .ne. -1) idegallr = idegallr + 1
	1131
	1132	ALLOCATE(ineigh(ideg))
	1133	ALLOCATE(ineighalls(idegalls))
	1134	ALLOCATE(ineighallr(idegallr))
	1135
	1136	IF (nbondi .eq. 1) THEN
	1137	icont = icont + 1
	1138	ineigh(icont) = nowe
	1139	ineighalls(icont) = nowe
	1140	ineighallr(icont) = nowe
	1141	ELSEIF (nbondi .eq. -1) THEN
	1142	icont = icont + 1
	1143	ineigh(icont) = noea
	1144	ineighalls(icont) = noea
	1145	ineighallr(icont) = noea
	1146	ELSEIF (nbondi .eq. 0) THEN
	1147	icont = icont + 1
	1148	ineigh(icont) = nowe
	1149	ineighalls(icont) = nowe
	1150	ineighallr(icont) = nowe
	1151	icont = icont + 1
	1152	ineigh(icont) = noea
	1153	ineighalls(icont) = noea
	1154	ineighallr(icont) = noea
	1155	ENDIF
	1156
	1157	IF (nbondj .eq. 1) THEN
	1158	icont = icont + 1
	1159	ineigh(icont) = noso
	1160	ineighalls(icont) = noso
	1161	ineighallr(icont) = noso
	1162	ELSEIF (nbondj .eq. -1) THEN
	1163	icont = icont + 1
	1164	ineigh(icont) = nono
	1165	ineighalls(icont) = nono
	1166	ineighallr(icont) = nono
	1167	ELSEIF (nbondj .eq. 0) THEN
	1168	icont = icont + 1
	1169	ineigh(icont) = noso
	1170	ineighalls(icont) = noso
	1171	ineighallr(icont) = noso
	1172	icont = icont + 1
	1173	ineigh(icont) = nono
	1174	ineighalls(icont) = nono
	1175	ineighallr(icont) = nono
	1176	ENDIF
	1177
	1178	icont1 = icont
	1179	IF (nosws .ne. -1) THEN
	1180	icont = icont + 1
	1181	ineighalls(icont) = nosws
	1182	ENDIF
	1183	IF (noses .ne. -1) THEN
	1184	icont = icont + 1
	1185	ineighalls(icont) = noses
	1186	ENDIF
	1187	IF (nonws .ne. -1) THEN
	1188	icont = icont + 1
	1189	ineighalls(icont) = nonws
	1190	ENDIF
	1191	IF (nones .ne. -1) THEN
	1192	icont = icont + 1
	1193	ineighalls(icont) = nones
	1194	ENDIF
	1195	IF (noswr .ne. -1) THEN
	1196	icont1 = icont1 + 1
	1197	ineighallr(icont1) = noswr
	1198	ENDIF
	1199	IF (noser .ne. -1) THEN
	1200	icont1 = icont1 + 1
	1201	ineighallr(icont1) = noser
	1202	ENDIF
	1203	IF (nonwr .ne. -1) THEN
	1204	icont1 = icont1 + 1
	1205	ineighallr(icont1) = nonwr
	1206	ENDIF
	1207	IF (noner .ne. -1) THEN
	1208	icont1 = icont1 + 1
	1209	ineighallr(icont1) = noner
	1210	ENDIF
	1211
	1212	CALL MPI_Dist_graph_create_adjacent(mpi_comm_oce, ideg, ineigh, MPI_UNWEIGHTED, ideg, ineigh, MPI_UNWEIGHTED, MPI_INFO_NULL, ireord, mpi_nc_com, ierr)
	1213	CALL MPI_Dist_graph_create_adjacent(mpi_comm_oce, idegallr, ineighallr, MPI_UNWEIGHTED, idegalls, ineighalls, MPI_UNWEIGHTED, MPI_INFO_NULL, ireord, mpi_nc_all_com, ierr)
	1214
	1215	DEALLOCATE (ineigh)
	1216	DEALLOCATE (ineighalls)
	1217	DEALLOCATE (ineighallr)
	1218	#endif
	1219	END SUBROUTINE mpp_ini_nc
	1220
	1221
	1222
[1344]	1223	SUBROUTINE mpp_ini_north
	1224	!!----------------------------------------------------------------------
	1225	!! * routine mpp_ini_north *
	1226	!!
[3764]	1227	!! ** Purpose : Initialize special communicator for north folding
[1344]	1228	!! condition together with global variables needed in the mpp folding
	1229	!!
	1230	!! ** Method : - Look for northern processors
	1231	!! - Put their number in nrank_north
	1232	!! - Create groups for the world processors and the north processors
	1233	!! - Create a communicator for northern processors
	1234	!!
	1235	!! ** output
	1236	!! njmppmax = njmpp for northern procs
	1237	!! ndim_rank_north = number of processors in the northern line
	1238	!! nrank_north (ndim_rank_north) = number of the northern procs.
	1239	!! ngrp_world = group ID for the world processors
	1240	!! ngrp_north = group ID for the northern processors
	1241	!! ncomm_north = communicator for the northern procs.
	1242	!! north_root = number (in the world) of proc 0 in the northern comm.
	1243	!!
	1244	!!----------------------------------------------------------------------
	1245	INTEGER :: ierr
	1246	INTEGER :: jjproc
	1247	INTEGER :: ii, ji
	1248	!!----------------------------------------------------------------------
	1249	!
[11536]	1250	#if defined key_mpp_mpi
[1344]	1251	njmppmax = MAXVAL( njmppt )
	1252	!
	1253	! Look for how many procs on the northern boundary
	1254	ndim_rank_north = 0
[13286]	1255	DO jjproc = 1, jpni
	1256	IF( nfproc(jjproc) /= -1 ) ndim_rank_north = ndim_rank_north + 1
[1344]	1257	END DO
	1258	!
	1259	! Allocate the right size to nrank_north
[1441]	1260	IF (ALLOCATED (nrank_north)) DEALLOCATE(nrank_north)
[1344]	1261	ALLOCATE( nrank_north(ndim_rank_north) )
[869]	1262
[1344]	1263	! Fill the nrank_north array with proc. number of northern procs.
	1264	! Note : the rank start at 0 in MPI
	1265	ii = 0
[13286]	1266	DO ji = 1, jpni
	1267	IF ( nfproc(ji) /= -1 ) THEN
[1344]	1268	ii=ii+1
[13286]	1269	nrank_north(ii)=nfproc(ji)
[1344]	1270	END IF
	1271	END DO
	1272	!
	1273	! create the world group
[9570]	1274	CALL MPI_COMM_GROUP( mpi_comm_oce, ngrp_world, ierr )
[1344]	1275	!
	1276	! Create the North group from the world group
	1277	CALL MPI_GROUP_INCL( ngrp_world, ndim_rank_north, nrank_north, ngrp_north, ierr )
	1278	!
	1279	! Create the North communicator , ie the pool of procs in the north group
[9570]	1280	CALL MPI_COMM_CREATE( mpi_comm_oce, ngrp_north, ncomm_north, ierr )
[1344]	1281	!
[11536]	1282	#endif
[1344]	1283	END SUBROUTINE mpp_ini_north
[869]	1284
	1285
[9019]	1286	SUBROUTINE DDPDD_MPI( ydda, yddb, ilen, itype )
[1976]	1287	!!---------------------------------------------------------------------
	1288	!! Routine DDPDD_MPI: used by reduction operator MPI_SUMDD
	1289	!!
	1290	!! Modification of original codes written by David H. Bailey
	1291	!! This subroutine computes yddb(i) = ydda(i)+yddb(i)
	1292	!!---------------------------------------------------------------------
[9019]	1293	INTEGER , INTENT(in) :: ilen, itype
[13226]	1294	COMPLEX(dp), DIMENSION(ilen), INTENT(in) :: ydda
	1295	COMPLEX(dp), DIMENSION(ilen), INTENT(inout) :: yddb
[1976]	1296	!
[13226]	1297	REAL(dp) :: zerr, zt1, zt2 ! local work variables
[9019]	1298	INTEGER :: ji, ztmp ! local scalar
	1299	!!---------------------------------------------------------------------
	1300	!
[1976]	1301	ztmp = itype ! avoid compilation warning
[9019]	1302	!
[1976]	1303	DO ji=1,ilen
	1304	! Compute ydda + yddb using Knuth's trick.
	1305	zt1 = real(ydda(ji)) + real(yddb(ji))
	1306	zerr = zt1 - real(ydda(ji))
	1307	zt2 = ((real(yddb(ji)) - zerr) + (real(ydda(ji)) - (zt1 - zerr))) &
	1308	+ aimag(ydda(ji)) + aimag(yddb(ji))
	1309
	1310	! The result is zt1 + zt2, after normalization.
	1311	yddb(ji) = cmplx ( zt1 + zt2, zt2 - ((zt1 + zt2) - zt1),wp )
	1312	END DO
[9019]	1313	!
[1976]	1314	END SUBROUTINE DDPDD_MPI
	1315
[6140]	1316
[10437]	1317	SUBROUTINE mpp_report( cdname, kpk, kpl, kpf, ld_lbc, ld_glb, ld_dlg )
[10425]	1318	!!----------------------------------------------------------------------
	1319	!! * routine mpp_report *
	1320	!!
	1321	!! ** Purpose : report use of mpp routines per time-setp
	1322	!!
	1323	!!----------------------------------------------------------------------
	1324	CHARACTER(len=*), INTENT(in ) :: cdname ! name of the calling subroutine
	1325	INTEGER , OPTIONAL, INTENT(in ) :: kpk, kpl, kpf
[10437]	1326	LOGICAL , OPTIONAL, INTENT(in ) :: ld_lbc, ld_glb, ld_dlg
[10425]	1327	!!
[10982]	1328	CHARACTER(len=128) :: ccountname ! name of a subroutine to count communications
[10437]	1329	LOGICAL :: ll_lbc, ll_glb, ll_dlg
[10982]	1330	INTEGER :: ji, jj, jk, jh, jf, jcount ! dummy loop indices
[10425]	1331	!!----------------------------------------------------------------------
[11536]	1332	#if defined key_mpp_mpi
[10425]	1333	!
	1334	ll_lbc = .FALSE.
	1335	IF( PRESENT(ld_lbc) ) ll_lbc = ld_lbc
	1336	ll_glb = .FALSE.
	1337	IF( PRESENT(ld_glb) ) ll_glb = ld_glb
[10437]	1338	ll_dlg = .FALSE.
	1339	IF( PRESENT(ld_dlg) ) ll_dlg = ld_dlg
[10425]	1340	!
	1341	! find the smallest common frequency: default = frequency product, if multiple, choose the larger of the 2 frequency
	1342	ncom_freq = ncom_fsbc
	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', 'lib_mpp, 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', 'lib_mpp, increase ncom_rec_max' ) ! deadlock
	1358	crname_glb(n_sequence_glb) = cdname ! keep the name of the calling routine
	1359	ENDIF
[10437]	1360	IF( ll_dlg ) THEN
	1361	IF( .NOT. ALLOCATED(crname_dlg) ) ALLOCATE( crname_dlg(ncom_rec_max) )
	1362	n_sequence_dlg = n_sequence_dlg + 1
	1363	IF( n_sequence_dlg > ncom_rec_max ) CALL ctl_stop( 'STOP', 'lib_mpp, increase ncom_rec_max' ) ! deadlock
	1364	crname_dlg(n_sequence_dlg) = cdname ! keep the name of the calling routine
	1365	ENDIF
[10425]	1366	ELSE IF ( ncom_stp == nit000+2*ncom_freq ) THEN
	1367	CALL ctl_opn( numcom, 'communication_report.txt', 'REPLACE', 'FORMATTED', 'SEQUENTIAL', -1, numout, .FALSE., narea )
	1368	WRITE(numcom,*) ' '
	1369	WRITE(numcom,*) ' ------------------------------------------------------------'
	1370	WRITE(numcom,*) ' Communication pattern report (second oce+sbc+top time step):'
	1371	WRITE(numcom,*) ' ------------------------------------------------------------'
	1372	WRITE(numcom,*) ' '
	1373	WRITE(numcom,'(A,I4)') ' Exchanged halos : ', n_sequence_lbc
	1374	jj = 0; jk = 0; jf = 0; jh = 0
	1375	DO ji = 1, n_sequence_lbc
	1376	IF ( ncomm_sequence(ji,1) .GT. 1 ) jk = jk + 1
	1377	IF ( ncomm_sequence(ji,2) .GT. 1 ) jf = jf + 1
	1378	IF ( ncomm_sequence(ji,1) .GT. 1 .AND. ncomm_sequence(ji,2) .GT. 1 ) jj = jj + 1
	1379	jh = MAX (jh, ncomm_sequence(ji,1)*ncomm_sequence(ji,2))
	1380	END DO
	1381	WRITE(numcom,'(A,I3)') ' 3D Exchanged halos : ', jk
	1382	WRITE(numcom,'(A,I3)') ' Multi arrays exchanged halos : ', jf
	1383	WRITE(numcom,'(A,I3)') ' from which 3D : ', jj
	1384	WRITE(numcom,'(A,I10)') ' Array max size : ', jhjpijpj
	1385	WRITE(numcom,*) ' '
	1386	WRITE(numcom,*) ' lbc_lnk called'
[10982]	1387	DO ji = 1, n_sequence_lbc - 1
	1388	IF ( crname_lbc(ji) /= 'already counted' ) THEN
	1389	ccountname = crname_lbc(ji)
	1390	crname_lbc(ji) = 'already counted'
	1391	jcount = 1
	1392	DO jj = ji + 1, n_sequence_lbc
	1393	IF ( ccountname == crname_lbc(jj) ) THEN
	1394	jcount = jcount + 1
	1395	crname_lbc(jj) = 'already counted'
	1396	END IF
	1397	END DO
	1398	WRITE(numcom,'(A, I4, A, A)') ' - ', jcount,' times by subroutine ', TRIM(ccountname)
[10425]	1399	END IF
	1400	END DO
[10982]	1401	IF ( crname_lbc(n_sequence_lbc) /= 'already counted' ) THEN
	1402	WRITE(numcom,'(A, I4, A, A)') ' - ', 1,' times by subroutine ', TRIM(crname_lbc(ncom_rec_max))
	1403	END IF
[10425]	1404	WRITE(numcom,*) ' '
	1405	IF ( n_sequence_glb > 0 ) THEN
	1406	WRITE(numcom,'(A,I4)') ' Global communications : ', n_sequence_glb
	1407	jj = 1
	1408	DO ji = 2, n_sequence_glb
	1409	IF( crname_glb(ji-1) /= crname_glb(ji) ) THEN
	1410	WRITE(numcom,'(A, I4, A, A)') ' - ', jj,' times by subroutine ', TRIM(crname_glb(ji-1))
	1411	jj = 0
	1412	END IF
[14072]	1413	jj = jj + 1
[10425]	1414	END DO
	1415	WRITE(numcom,'(A, I4, A, A)') ' - ', jj,' times by subroutine ', TRIM(crname_glb(n_sequence_glb))
	1416	DEALLOCATE(crname_glb)
	1417	ELSE
	1418	WRITE(numcom,*) ' No MPI global communication '
	1419	ENDIF
	1420	WRITE(numcom,*) ' '
[10437]	1421	IF ( n_sequence_dlg > 0 ) THEN
	1422	WRITE(numcom,'(A,I4)') ' Delayed global communications : ', n_sequence_dlg
	1423	jj = 1
	1424	DO ji = 2, n_sequence_dlg
	1425	IF( crname_dlg(ji-1) /= crname_dlg(ji) ) THEN
	1426	WRITE(numcom,'(A, I4, A, A)') ' - ', jj,' times by subroutine ', TRIM(crname_dlg(ji-1))
	1427	jj = 0
	1428	END IF
[14072]	1429	jj = jj + 1
[10437]	1430	END DO
	1431	WRITE(numcom,'(A, I4, A, A)') ' - ', jj,' times by subroutine ', TRIM(crname_dlg(n_sequence_dlg))
	1432	DEALLOCATE(crname_dlg)
	1433	ELSE
	1434	WRITE(numcom,*) ' No MPI delayed global communication '
	1435	ENDIF
	1436	WRITE(numcom,*) ' '
[10425]	1437	WRITE(numcom,*) ' -----------------------------------------------'
	1438	WRITE(numcom,*) ' '
	1439	DEALLOCATE(ncomm_sequence)
	1440	DEALLOCATE(crname_lbc)
	1441	ENDIF
[11536]	1442	#endif
[10425]	1443	END SUBROUTINE mpp_report
	1444
[14072]	1445
[10425]	1446	SUBROUTINE tic_tac (ld_tic, ld_global)
	1447
	1448	LOGICAL, INTENT(IN) :: ld_tic
	1449	LOGICAL, OPTIONAL, INTENT(IN) :: ld_global
[13226]	1450	REAL(dp), DIMENSION(2), SAVE :: tic_wt
	1451	REAL(dp), SAVE :: tic_ct = 0._dp
[10425]	1452	INTEGER :: ii
[11536]	1453	#if defined key_mpp_mpi
[10425]	1454
	1455	IF( ncom_stp <= nit000 ) RETURN
	1456	IF( ncom_stp == nitend ) RETURN
	1457	ii = 1
	1458	IF( PRESENT( ld_global ) ) THEN
	1459	IF( ld_global ) ii = 2
	1460	END IF
[14072]	1461
[10425]	1462	IF ( ld_tic ) THEN
	1463	tic_wt(ii) = MPI_Wtime() ! start count tic->tac (waiting time)
[13226]	1464	IF ( tic_ct > 0.0_dp ) compute_time = compute_time + MPI_Wtime() - tic_ct ! cumulate count tac->tic
[10425]	1465	ELSE
	1466	waiting_time(ii) = waiting_time(ii) + MPI_Wtime() - tic_wt(ii) ! cumulate count tic->tac
	1467	tic_ct = MPI_Wtime() ! start count tac->tic (waiting time)
	1468	ENDIF
[11536]	1469	#endif
[14072]	1470
[10425]	1471	END SUBROUTINE tic_tac
	1472
[11536]	1473	#if ! defined key_mpp_mpi
	1474	SUBROUTINE mpi_wait(request, status, ierror)
	1475	INTEGER , INTENT(in ) :: request
	1476	INTEGER, DIMENSION(MPI_STATUS_SIZE), INTENT( out) :: status
	1477	INTEGER , INTENT( out) :: ierror
	1478	END SUBROUTINE mpi_wait
[1976]	1479
[14072]	1480
[11536]	1481	FUNCTION MPI_Wtime()
	1482	REAL(wp) :: MPI_Wtime
	1483	MPI_Wtime = -1.
	1484	END FUNCTION MPI_Wtime
[3]	1485	#endif
[2715]	1486
[13]	1487	!!----------------------------------------------------------------------
[12377]	1488	!! ctl_stop, ctl_warn, get_unit, ctl_opn, ctl_nam, load_nml routines
[2715]	1489	!!----------------------------------------------------------------------
	1490
	1491	SUBROUTINE ctl_stop( cd1, cd2, cd3, cd4, cd5 , &
	1492	& cd6, cd7, cd8, cd9, cd10 )
	1493	!!----------------------------------------------------------------------
	1494	!! * ROUTINE stop_opa *
	1495	!!
[3764]	1496	!! ** Purpose : print in ocean.outpput file a error message and
[2715]	1497	!! increment the error number (nstop) by one.
	1498	!!----------------------------------------------------------------------
[11536]	1499	CHARACTER(len=*), INTENT(in ) :: cd1
	1500	CHARACTER(len=*), INTENT(in ), OPTIONAL :: cd2, cd3, cd4, cd5
	1501	CHARACTER(len=*), INTENT(in ), OPTIONAL :: cd6, cd7, cd8, cd9, cd10
[12933]	1502	!
	1503	CHARACTER(LEN=8) :: clfmt ! writing format
[13011]	1504	INTEGER :: inum
[2715]	1505	!!----------------------------------------------------------------------
	1506	!
[3764]	1507	nstop = nstop + 1
[11536]	1508	!
[13011]	1509	IF( cd1 == 'STOP' .AND. narea /= 1 ) THEN ! Immediate stop: add an arror message in 'ocean.output' file
	1510	CALL ctl_opn( inum, 'ocean.output', 'APPEND', 'FORMATTED', 'SEQUENTIAL', -1, 6, .FALSE. )
	1511	WRITE(inum,*)
	1512	WRITE(inum,) ' ==>>> Look for "E R R O R" messages in all existing ocean.output* files'
	1513	CLOSE(inum)
[12933]	1514	ENDIF
[13011]	1515	IF( numout == 6 ) THEN ! force to open ocean.output file if not already opened
	1516	CALL ctl_opn( numout, 'ocean.output', 'REPLACE', 'FORMATTED', 'SEQUENTIAL', -1, -1, .FALSE., narea )
	1517	ENDIF
[11536]	1518	!
	1519	WRITE(numout,*)
	1520	WRITE(numout,*) ' ===>>> : E R R O R'
	1521	WRITE(numout,*)
	1522	WRITE(numout,*) ' ==========='
	1523	WRITE(numout,*)
	1524	WRITE(numout,*) TRIM(cd1)
[10425]	1525	IF( PRESENT(cd2 ) ) WRITE(numout,*) TRIM(cd2)
	1526	IF( PRESENT(cd3 ) ) WRITE(numout,*) TRIM(cd3)
	1527	IF( PRESENT(cd4 ) ) WRITE(numout,*) TRIM(cd4)
	1528	IF( PRESENT(cd5 ) ) WRITE(numout,*) TRIM(cd5)
	1529	IF( PRESENT(cd6 ) ) WRITE(numout,*) TRIM(cd6)
	1530	IF( PRESENT(cd7 ) ) WRITE(numout,*) TRIM(cd7)
	1531	IF( PRESENT(cd8 ) ) WRITE(numout,*) TRIM(cd8)
	1532	IF( PRESENT(cd9 ) ) WRITE(numout,*) TRIM(cd9)
	1533	IF( PRESENT(cd10) ) WRITE(numout,*) TRIM(cd10)
[11536]	1534	WRITE(numout,*)
	1535	!
[2715]	1536	CALL FLUSH(numout )
	1537	IF( numstp /= -1 ) CALL FLUSH(numstp )
[9019]	1538	IF( numrun /= -1 ) CALL FLUSH(numrun )
[2715]	1539	IF( numevo_ice /= -1 ) CALL FLUSH(numevo_ice)
	1540	!
	1541	IF( cd1 == 'STOP' ) THEN
[14072]	1542	WRITE(numout,*)
[10425]	1543	WRITE(numout,*) 'huge E-R-R-O-R : immediate stop'
[14072]	1544	WRITE(numout,*)
[12933]	1545	CALL FLUSH(numout)
	1546	CALL SLEEP(60) ! make sure that all output and abort files are written by all cores. 60s should be enough...
[11536]	1547	CALL mppstop( ld_abort = .true. )
[2715]	1548	ENDIF
	1549	!
	1550	END SUBROUTINE ctl_stop
	1551
	1552
	1553	SUBROUTINE ctl_warn( cd1, cd2, cd3, cd4, cd5, &
	1554	& cd6, cd7, cd8, cd9, cd10 )
	1555	!!----------------------------------------------------------------------
	1556	!! * ROUTINE stop_warn *
	1557	!!
[3764]	1558	!! ** Purpose : print in ocean.outpput file a error message and
[2715]	1559	!! increment the warning number (nwarn) by one.
	1560	!!----------------------------------------------------------------------
	1561	CHARACTER(len=*), INTENT(in), OPTIONAL :: cd1, cd2, cd3, cd4, cd5
	1562	CHARACTER(len=*), INTENT(in), OPTIONAL :: cd6, cd7, cd8, cd9, cd10
	1563	!!----------------------------------------------------------------------
[3764]	1564	!
	1565	nwarn = nwarn + 1
[11536]	1566	!
[2715]	1567	IF(lwp) THEN
[11536]	1568	WRITE(numout,*)
	1569	WRITE(numout,*) ' ===>>> : W A R N I N G'
	1570	WRITE(numout,*)
	1571	WRITE(numout,*) ' ==============='
	1572	WRITE(numout,*)
	1573	IF( PRESENT(cd1 ) ) WRITE(numout,*) TRIM(cd1)
	1574	IF( PRESENT(cd2 ) ) WRITE(numout,*) TRIM(cd2)
	1575	IF( PRESENT(cd3 ) ) WRITE(numout,*) TRIM(cd3)
	1576	IF( PRESENT(cd4 ) ) WRITE(numout,*) TRIM(cd4)
	1577	IF( PRESENT(cd5 ) ) WRITE(numout,*) TRIM(cd5)
	1578	IF( PRESENT(cd6 ) ) WRITE(numout,*) TRIM(cd6)
	1579	IF( PRESENT(cd7 ) ) WRITE(numout,*) TRIM(cd7)
	1580	IF( PRESENT(cd8 ) ) WRITE(numout,*) TRIM(cd8)
	1581	IF( PRESENT(cd9 ) ) WRITE(numout,*) TRIM(cd9)
	1582	IF( PRESENT(cd10) ) WRITE(numout,*) TRIM(cd10)
	1583	WRITE(numout,*)
[2715]	1584	ENDIF
	1585	CALL FLUSH(numout)
	1586	!
	1587	END SUBROUTINE ctl_warn
	1588
	1589
	1590	SUBROUTINE ctl_opn( knum, cdfile, cdstat, cdform, cdacce, klengh, kout, ldwp, karea )
	1591	!!----------------------------------------------------------------------
	1592	!! * ROUTINE ctl_opn *
	1593	!!
	1594	!! ** Purpose : Open file and check if required file is available.
	1595	!!
	1596	!! ** Method : Fortan open
	1597	!!----------------------------------------------------------------------
	1598	INTEGER , INTENT( out) :: knum ! logical unit to open
	1599	CHARACTER(len=*) , INTENT(in ) :: cdfile ! file name to open
	1600	CHARACTER(len=*) , INTENT(in ) :: cdstat ! disposition specifier
	1601	CHARACTER(len=*) , INTENT(in ) :: cdform ! formatting specifier
	1602	CHARACTER(len=*) , INTENT(in ) :: cdacce ! access specifier
	1603	INTEGER , INTENT(in ) :: klengh ! record length
	1604	INTEGER , INTENT(in ) :: kout ! number of logical units for write
	1605	LOGICAL , INTENT(in ) :: ldwp ! boolean term for print
	1606	INTEGER, OPTIONAL, INTENT(in ) :: karea ! proc number
[5836]	1607	!
[2715]	1608	CHARACTER(len=80) :: clfile
[12933]	1609	CHARACTER(LEN=10) :: clfmt ! writing format
[2715]	1610	INTEGER :: iost
[13062]	1611	INTEGER :: idg ! number of digits
[2715]	1612	!!----------------------------------------------------------------------
[5836]	1613	!
[2715]	1614	! adapt filename
	1615	! ----------------
	1616	clfile = TRIM(cdfile)
	1617	IF( PRESENT( karea ) ) THEN
[12933]	1618	IF( karea > 1 ) THEN
[13009]	1619	! Warning: jpnij is maybe not already defined when calling ctl_opn -> use mppsize instead of jpnij
	1620	idg = MAX( INT(LOG10(REAL(MAX(1,mppsize-1),wp))) + 1, 4 ) ! how many digits to we need to write? min=4, max=9
	1621	WRITE(clfmt, "('(a,a,i', i1, '.', i1, ')')") idg, idg ! '(a,a,ix.x)'
[12933]	1622	WRITE(clfile, clfmt) TRIM(clfile), '_', karea-1
	1623	ENDIF
[2715]	1624	ENDIF
	1625	#if defined key_agrif
	1626	IF( .NOT. Agrif_Root() ) clfile = TRIM(Agrif_CFixed())//'_'//TRIM(clfile)
	1627	knum=Agrif_Get_Unit()
	1628	#else
	1629	knum=get_unit()
	1630	#endif
[10425]	1631	IF( TRIM(cdfile) == '/dev/null' ) clfile = TRIM(cdfile) ! force the use of /dev/null
[5836]	1632	!
[11536]	1633	IF( cdacce(1:6) == 'DIRECT' ) THEN ! cdacce has always more than 6 characters
[10425]	1634	OPEN( UNIT=knum, FILE=clfile, FORM=cdform, ACCESS=cdacce, STATUS=cdstat, RECL=klengh , ERR=100, IOSTAT=iost )
	1635	ELSE IF( TRIM(cdstat) == 'APPEND' ) THEN ! cdstat can have less than 6 characters
	1636	OPEN( UNIT=knum, FILE=clfile, FORM=cdform, ACCESS=cdacce, STATUS='UNKNOWN', POSITION='APPEND', ERR=100, IOSTAT=iost )
[2715]	1637	ELSE
[10425]	1638	OPEN( UNIT=knum, FILE=clfile, FORM=cdform, ACCESS=cdacce, STATUS=cdstat , ERR=100, IOSTAT=iost )
[2715]	1639	ENDIF
[10425]	1640	IF( iost /= 0 .AND. TRIM(clfile) == '/dev/null' ) & ! for windows
[14072]	1641	& OPEN(UNIT=knum,FILE='NUL', FORM=cdform, ACCESS=cdacce, STATUS=cdstat , ERR=100, IOSTAT=iost )
[2715]	1642	IF( iost == 0 ) THEN
[12377]	1643	IF(ldwp .AND. kout > 0) THEN
[10425]	1644	WRITE(kout,*) ' file : ', TRIM(clfile),' open ok'
[2715]	1645	WRITE(kout,*) ' unit = ', knum
	1646	WRITE(kout,*) ' status = ', cdstat
	1647	WRITE(kout,*) ' form = ', cdform
	1648	WRITE(kout,*) ' access = ', cdacce
	1649	WRITE(kout,*)
	1650	ENDIF
	1651	ENDIF
	1652	100 CONTINUE
	1653	IF( iost /= 0 ) THEN
[11536]	1654	WRITE(ctmp1,*) ' ===>>>> : bad opening file: ', TRIM(clfile)
	1655	WRITE(ctmp2,*) ' ======= === '
	1656	WRITE(ctmp3,*) ' unit = ', knum
	1657	WRITE(ctmp4,*) ' status = ', cdstat
	1658	WRITE(ctmp5,*) ' form = ', cdform
	1659	WRITE(ctmp6,*) ' access = ', cdacce
	1660	WRITE(ctmp7,*) ' iostat = ', iost
	1661	WRITE(ctmp8,*) ' we stop. verify the file '
	1662	CALL ctl_stop( 'STOP', ctmp1, ctmp2, ctmp3, ctmp4, ctmp5, ctmp6, ctmp7, ctmp8 )
[2715]	1663	ENDIF
[5836]	1664	!
[2715]	1665	END SUBROUTINE ctl_opn
	1666
[5836]	1667
[11536]	1668	SUBROUTINE ctl_nam ( kios, cdnam )
[4147]	1669	!!----------------------------------------------------------------------
	1670	!! * ROUTINE ctl_nam *
	1671	!!
	1672	!! ** Purpose : Informations when error while reading a namelist
	1673	!!
	1674	!! ** Method : Fortan open
	1675	!!----------------------------------------------------------------------
[11536]	1676	INTEGER , INTENT(inout) :: kios ! IO status after reading the namelist
	1677	CHARACTER(len=*) , INTENT(in ) :: cdnam ! group name of namelist for which error occurs
	1678	!
	1679	CHARACTER(len=5) :: clios ! string to convert iostat in character for print
[4147]	1680	!!----------------------------------------------------------------------
[5836]	1681	!
[7646]	1682	WRITE (clios, '(I5.0)') kios
[14072]	1683	IF( kios < 0 ) THEN
[5836]	1684	CALL ctl_warn( 'end of record or file while reading namelist ' &
	1685	& // TRIM(cdnam) // ' iostat = ' // TRIM(clios) )
[4147]	1686	ENDIF
[5836]	1687	!
[4147]	1688	IF( kios > 0 ) THEN
[5836]	1689	CALL ctl_stop( 'misspelled variable in namelist ' &
	1690	& // TRIM(cdnam) // ' iostat = ' // TRIM(clios) )
[4147]	1691	ENDIF
	1692	kios = 0
[5836]	1693	!
[4147]	1694	END SUBROUTINE ctl_nam
	1695
[5836]	1696
[2715]	1697	INTEGER FUNCTION get_unit()
	1698	!!----------------------------------------------------------------------
	1699	!! * FUNCTION get_unit *
	1700	!!
	1701	!! ** Purpose : return the index of an unused logical unit
	1702	!!----------------------------------------------------------------------
[3764]	1703	LOGICAL :: llopn
[2715]	1704	!!----------------------------------------------------------------------
	1705	!
	1706	get_unit = 15 ! choose a unit that is big enough then it is not already used in NEMO
	1707	llopn = .TRUE.
	1708	DO WHILE( (get_unit < 998) .AND. llopn )
	1709	get_unit = get_unit + 1
	1710	INQUIRE( unit = get_unit, opened = llopn )
	1711	END DO
	1712	IF( (get_unit == 999) .AND. llopn ) THEN
[11536]	1713	CALL ctl_stop( 'STOP', 'get_unit: All logical units until 999 are used...' )
[2715]	1714	ENDIF
	1715	!
	1716	END FUNCTION get_unit
	1717
[12377]	1718	SUBROUTINE load_nml( cdnambuff , cdnamfile, kout, ldwp)
	1719	CHARACTER(LEN=:) , ALLOCATABLE, INTENT(INOUT) :: cdnambuff
	1720	CHARACTER(LEN=*), INTENT(IN ) :: cdnamfile
	1721	CHARACTER(LEN=256) :: chline
	1722	CHARACTER(LEN=1) :: csp
	1723	INTEGER, INTENT(IN) :: kout
	1724	LOGICAL, INTENT(IN) :: ldwp !: .true. only for the root broadcaster
	1725	INTEGER :: itot, iun, iltc, inl, ios, itotsav
	1726	!
	1727	!csp = NEW_LINE('A')
	1728	! a new line character is the best seperator but some systems (e.g.Cray)
[14072]	1729	! seem to terminate namelist reads from internal files early if they
[12377]	1730	! encounter new-lines. Use a single space for safety.
	1731	csp = ' '
	1732	!
	1733	! Check if the namelist buffer has already been allocated. Return if it has.
	1734	!
	1735	IF ( ALLOCATED( cdnambuff ) ) RETURN
	1736	IF( ldwp ) THEN
	1737	!
	1738	! Open namelist file
	1739	!
	1740	CALL ctl_opn( iun, cdnamfile, 'OLD', 'FORMATTED', 'SEQUENTIAL', -1, kout, ldwp )
	1741	!
	1742	! First pass: count characters excluding comments and trimable white space
	1743	!
	1744	itot=0
	1745	10 READ(iun,'(A256)',END=20,ERR=20) chline
	1746	iltc = LEN_TRIM(chline)
	1747	IF ( iltc.GT.0 ) THEN
[14072]	1748	inl = INDEX(chline, '!')
[12377]	1749	IF( inl.eq.0 ) THEN
	1750	itot = itot + iltc + 1 ! +1 for the newline character
	1751	ELSEIF( inl.GT.0 .AND. LEN_TRIM( chline(1:inl-1) ).GT.0 ) THEN
	1752	itot = itot + inl ! includes +1 for the newline character
	1753	ENDIF
	1754	ENDIF
	1755	GOTO 10
	1756	20 CONTINUE
	1757	!
	1758	! Allocate text cdnambuff for condensed namelist
	1759	!
	1760	!$AGRIF_DO_NOT_TREAT
	1761	ALLOCATE( CHARACTER(LEN=itot) :: cdnambuff )
	1762	!$AGRIF_END_DO_NOT_TREAT
	1763	itotsav = itot
	1764	!
	1765	! Second pass: read and transfer pruned characters into cdnambuff
	1766	!
	1767	REWIND(iun)
	1768	itot=1
	1769	30 READ(iun,'(A256)',END=40,ERR=40) chline
	1770	iltc = LEN_TRIM(chline)
	1771	IF ( iltc.GT.0 ) THEN
	1772	inl = INDEX(chline, '!')
	1773	IF( inl.eq.0 ) THEN
	1774	inl = iltc
	1775	ELSE
	1776	inl = inl - 1
	1777	ENDIF
	1778	IF( inl.GT.0 .AND. LEN_TRIM( chline(1:inl) ).GT.0 ) THEN
	1779	cdnambuff(itot:itot+inl-1) = chline(1:inl)
	1780	WRITE( cdnambuff(itot+inl:itot+inl), '(a)' ) csp
	1781	itot = itot + inl + 1
	1782	ENDIF
	1783	ENDIF
	1784	GOTO 30
	1785	40 CONTINUE
	1786	itot = itot - 1
	1787	IF( itotsav .NE. itot ) WRITE(,) 'WARNING in load_nml. Allocated ',itotsav,' for read buffer; but used ',itot
	1788	!
	1789	! Close namelist file
	1790	!
	1791	CLOSE(iun)
	1792	!write(*,'(32A)') cdnambuff
	1793	ENDIF
	1794	#if defined key_mpp_mpi
	1795	CALL mpp_bcast_nml( cdnambuff, itot )
	1796	#endif
	1797	END SUBROUTINE load_nml
	1798
	1799
[2715]	1800	!!----------------------------------------------------------------------
[3]	1801	END MODULE lib_mpp

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