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lib_mpp.F90 in NEMO/branches/2021/dev_r14312_MPI_Interface/src/OCE/LBC – NEMO

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source: NEMO/branches/2021/dev_r14312_MPI_Interface/src/OCE/LBC/lib_mpp.F90 @ 14367

Last change on this file since 14367 was 14363, checked in by smasson, 3 years ago
dev_r14312_MPI_Interface: suppress communications involving only land points, #2598
Property svn:keywords set to `Id`
File size: 73.3 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
[14338]	57	#if ! defined key_mpi_off
	58	USE MPI
	59	#endif
[3]	60
[13]	61	IMPLICIT NONE
[415]	62	PRIVATE
[9019]	63	!
[12377]	64	PUBLIC ctl_stop, ctl_warn, ctl_opn, ctl_nam, load_nml
[11536]	65	PUBLIC mpp_start, mppstop, mppsync, mpp_comm_free
[9019]	66	PUBLIC mpp_ini_north
[1344]	67	PUBLIC mpp_min, mpp_max, mpp_sum, mpp_minloc, mpp_maxloc
[10425]	68	PUBLIC mpp_delay_max, mpp_delay_sum, mpp_delay_rcv
[3294]	69	PUBLIC mppscatter, mppgather
[10425]	70	PUBLIC mpp_ini_znl
[13982]	71	PUBLIC mpp_ini_nc
[3764]	72	PUBLIC mppsend, mpprecv ! needed by TAM and ICB routines
[13226]	73	PUBLIC mppsend_sp, mpprecv_sp ! needed by TAM and ICB routines
	74	PUBLIC mppsend_dp, mpprecv_dp ! needed by TAM and ICB routines
[11536]	75	PUBLIC mpp_report
[12377]	76	PUBLIC mpp_bcast_nml
[11536]	77	PUBLIC tic_tac
[14229]	78	#if defined key_mpp_off
[13438]	79	PUBLIC MPI_wait
[11536]	80	PUBLIC MPI_Wtime
	81	#endif
[14072]	82
[13]	83	!! * Interfaces
	84	!! define generic interface for these routine as they are called sometimes
[1344]	85	!! with scalar arguments instead of array arguments, which causes problems
	86	!! for the compilation on AIX system as well as NEC and SGI. Ok on COMPACQ
[13]	87	INTERFACE mpp_min
[13226]	88	MODULE PROCEDURE mppmin_a_int, mppmin_int
	89	MODULE PROCEDURE mppmin_a_real_sp, mppmin_real_sp
	90	MODULE PROCEDURE mppmin_a_real_dp, mppmin_real_dp
[13]	91	END INTERFACE
	92	INTERFACE mpp_max
[13226]	93	MODULE PROCEDURE mppmax_a_int, mppmax_int
	94	MODULE PROCEDURE mppmax_a_real_sp, mppmax_real_sp
	95	MODULE PROCEDURE mppmax_a_real_dp, mppmax_real_dp
[13]	96	END INTERFACE
	97	INTERFACE mpp_sum
[13226]	98	MODULE PROCEDURE mppsum_a_int, mppsum_int
	99	MODULE PROCEDURE mppsum_realdd, mppsum_a_realdd
	100	MODULE PROCEDURE mppsum_a_real_sp, mppsum_real_sp
	101	MODULE PROCEDURE mppsum_a_real_dp, mppsum_real_dp
[13]	102	END INTERFACE
[1344]	103	INTERFACE mpp_minloc
[13226]	104	MODULE PROCEDURE mpp_minloc2d_sp ,mpp_minloc3d_sp
	105	MODULE PROCEDURE mpp_minloc2d_dp ,mpp_minloc3d_dp
[1344]	106	END INTERFACE
	107	INTERFACE mpp_maxloc
[13226]	108	MODULE PROCEDURE mpp_maxloc2d_sp ,mpp_maxloc3d_sp
	109	MODULE PROCEDURE mpp_maxloc2d_dp ,mpp_maxloc3d_dp
[1344]	110	END INTERFACE
[6490]	111
[14338]	112	TYPE, PUBLIC :: PTR_4D_sp !: array of 4D pointers (used in lbclnk and lbcnfd)
	113	REAL(sp), DIMENSION (:,:,:,:), POINTER :: pt4d
	114	END TYPE PTR_4D_sp
	115
	116	TYPE, PUBLIC :: PTR_4D_dp !: array of 4D pointers (used in lbclnk and lbcnfd)
	117	REAL(dp), DIMENSION (:,:,:,:), POINTER :: pt4d
	118	END TYPE PTR_4D_dp
	119
[51]	120	!! ========================= !!
	121	!! MPI variable definition !!
	122	!! ========================= !!
[14229]	123	#if ! defined key_mpi_off
[1344]	124	LOGICAL, PUBLIC, PARAMETER :: lk_mpp = .TRUE. !: mpp flag
[14072]	125	#else
[11536]	126	INTEGER, PUBLIC, PARAMETER :: MPI_STATUS_SIZE = 1
[13438]	127	INTEGER, PUBLIC, PARAMETER :: MPI_REAL = 4
[11536]	128	INTEGER, PUBLIC, PARAMETER :: MPI_DOUBLE_PRECISION = 8
	129	LOGICAL, PUBLIC, PARAMETER :: lk_mpp = .FALSE. !: mpp flag
	130	#endif
[3]	131
[10425]	132	INTEGER, PUBLIC :: mppsize ! number of process
	133	INTEGER, PUBLIC :: mpprank ! process number [ 0 - size-1 ]
[2363]	134	!$AGRIF_DO_NOT_TREAT
[9570]	135	INTEGER, PUBLIC :: mpi_comm_oce ! opa local communicator
[2363]	136	!$AGRIF_END_DO_NOT_TREAT
[3]	137
[2480]	138	INTEGER :: MPI_SUMDD
[1976]	139
[14314]	140	! Neighbourgs informations
[14363]	141	INTEGER, PARAMETER, PUBLIC :: n_hlsmax = 3
	142	INTEGER, DIMENSION( 8), PUBLIC :: mpinei !: 8-neighbourg MPI indexes (starting at 0, -1 if no neighbourg)
	143	INTEGER, DIMENSION(n_hlsmax,8), PUBLIC :: mpiSnei !: 8-neighbourg Send MPI indexes (starting at 0, -1 if no neighbourg)
	144	INTEGER, DIMENSION(n_hlsmax,8), PUBLIC :: mpiRnei !: 8-neighbourg Recv MPI indexes (starting at 0, -1 if no neighbourg)
[14314]	145	INTEGER, PARAMETER, PUBLIC :: jpwe = 1 !: WEst
	146	INTEGER, PARAMETER, PUBLIC :: jpea = 2 !: EAst
	147	INTEGER, PARAMETER, PUBLIC :: jpso = 3 !: SOuth
	148	INTEGER, PARAMETER, PUBLIC :: jpno = 4 !: NOrth
	149	INTEGER, PARAMETER, PUBLIC :: jpsw = 5 !: South-West
	150	INTEGER, PARAMETER, PUBLIC :: jpse = 6 !: South-East
	151	INTEGER, PARAMETER, PUBLIC :: jpnw = 7 !: North-West
	152	INTEGER, PARAMETER, PUBLIC :: jpne = 8 !: North-East
	153
	154	LOGICAL, DIMENSION(8), PUBLIC :: l_SelfPerio ! should we explicitely take care of I/J periodicity
	155	LOGICAL, PUBLIC :: l_IdoNFold
	156
[1345]	157	! variables used for zonal integration
[14314]	158	INTEGER, PUBLIC :: ncomm_znl !: communicator made by the processors on the same zonal average
	159	LOGICAL, PUBLIC :: l_znl_root !: True on the 'left'most processor on the same row
	160	INTEGER :: ngrp_znl !: group ID for the znl processors
	161	INTEGER :: ndim_rank_znl !: number of processors on the same zonal average
[2715]	162	INTEGER, DIMENSION(:), ALLOCATABLE, SAVE :: nrank_znl ! dimension ndim_rank_znl, number of the procs into the same znl domain
[3]	163
[13982]	164	! variables used for MPI3 neighbourhood collectives
[14363]	165	INTEGER, DIMENSION(n_hlsmax), PUBLIC :: mpi_nc_com4 ! MPI3 neighbourhood collectives communicator
	166	INTEGER, DIMENSION(n_hlsmax), PUBLIC :: mpi_nc_com8 ! MPI3 neighbourhood collectives communicator (with diagionals)
[13982]	167
[3764]	168	! North fold condition in mpp_mpi with jpni > 1 (PUBLIC for TAM)
[9019]	169	INTEGER, PUBLIC :: ngrp_world !: group ID for the world processors
	170	INTEGER, PUBLIC :: ngrp_opa !: group ID for the opa processors
	171	INTEGER, PUBLIC :: ngrp_north !: group ID for the northern processors (to be fold)
	172	INTEGER, PUBLIC :: ncomm_north !: communicator made by the processors belonging to ngrp_north
	173	INTEGER, PUBLIC :: ndim_rank_north !: number of 'sea' processor in the northern line (can be /= jpni !)
	174	INTEGER, PUBLIC :: njmppmax !: value of njmpp for the processors of the northern line
	175	INTEGER, PUBLIC :: north_root !: number (in the comm_opa) of proc 0 in the northern comm
	176	INTEGER, PUBLIC, DIMENSION(:), ALLOCATABLE, SAVE :: nrank_north !: dimension ndim_rank_north
[3764]	177
[10425]	178	! Communications summary report
[13216]	179	CHARACTER(len=lca), DIMENSION(:), ALLOCATABLE :: crname_lbc !: names of lbc_lnk calling routines
	180	CHARACTER(len=lca), DIMENSION(:), ALLOCATABLE :: crname_glb !: names of global comm calling routines
	181	CHARACTER(len=lca), DIMENSION(:), ALLOCATABLE :: crname_dlg !: names of delayed global comm calling routines
[10425]	182	INTEGER, PUBLIC :: ncom_stp = 0 !: copy of time step # istp
	183	INTEGER, PUBLIC :: ncom_fsbc = 1 !: copy of sbc time step # nn_fsbc
	184	INTEGER, PUBLIC :: ncom_freq !: frequency of comm diagnostic
	185	INTEGER, PUBLIC , DIMENSION(:,:), ALLOCATABLE :: ncomm_sequence !: size of communicated arrays (halos)
[10781]	186	INTEGER, PARAMETER, PUBLIC :: ncom_rec_max = 5000 !: max number of communication record
[10425]	187	INTEGER, PUBLIC :: n_sequence_lbc = 0 !: # of communicated arraysvia lbc
	188	INTEGER, PUBLIC :: n_sequence_glb = 0 !: # of global communications
[10437]	189	INTEGER, PUBLIC :: n_sequence_dlg = 0 !: # of delayed global communications
[10425]	190	INTEGER, PUBLIC :: numcom = -1 !: logical unit for communicaton report
	191	LOGICAL, PUBLIC :: l_full_nf_update = .TRUE. !: logical for a full (2lines) update of bc at North fold report
	192	INTEGER, PARAMETER, PUBLIC :: nbdelay = 2 !: number of delayed operations
	193	!: name (used as id) of allreduce-delayed operations
[10521]	194	! Warning: we must use the same character length in an array constructor (at least for gcc compiler)
	195	CHARACTER(len=32), DIMENSION(nbdelay), PUBLIC :: c_delaylist = (/ 'cflice', 'fwb ' /)
[10425]	196	!: component name where the allreduce-delayed operation is performed
	197	CHARACTER(len=3), DIMENSION(nbdelay), PUBLIC :: c_delaycpnt = (/ 'ICE' , 'OCE' /)
	198	TYPE, PUBLIC :: DELAYARR
	199	REAL( wp), POINTER, DIMENSION(:) :: z1d => NULL()
[13226]	200	COMPLEX(dp), POINTER, DIMENSION(:) :: y1d => NULL()
[10425]	201	END TYPE DELAYARR
[10817]	202	TYPE( DELAYARR ), DIMENSION(nbdelay), PUBLIC, SAVE :: todelay !: must have SAVE for default initialization of DELAYARR
	203	INTEGER, DIMENSION(nbdelay), PUBLIC :: ndelayid = -1 !: mpi request id of the delayed operations
[10425]	204
	205	! timing summary report
[13226]	206	REAL(dp), DIMENSION(2), PUBLIC :: waiting_time = 0._dp
	207	REAL(dp) , PUBLIC :: compute_time = 0._dp, elapsed_time = 0._dp
[14072]	208
[9019]	209	REAL(wp), DIMENSION(:), ALLOCATABLE, SAVE :: tampon ! buffer in case of bsend
[3]	210
[9019]	211	LOGICAL, PUBLIC :: ln_nnogather !: namelist control of northfold comms
[14338]	212	INTEGER, PUBLIC :: nn_comm !: namelist control of comms
[14072]	213
[14338]	214	INTEGER, PUBLIC, PARAMETER :: jpfillnothing = 1
	215	INTEGER, PUBLIC, PARAMETER :: jpfillcst = 2
	216	INTEGER, PUBLIC, PARAMETER :: jpfillcopy = 3
	217	INTEGER, PUBLIC, PARAMETER :: jpfillperio = 4
	218	INTEGER, PUBLIC, PARAMETER :: jpfillmpi = 5
	219
[12377]	220	!! * Substitutions
	221	# include "do_loop_substitute.h90"
[51]	222	!!----------------------------------------------------------------------
[9598]	223	!! NEMO/OCE 4.0 , NEMO Consortium (2018)
[888]	224	!! $Id$
[10068]	225	!! Software governed by the CeCILL license (see ./LICENSE)
[1344]	226	!!----------------------------------------------------------------------
[3]	227	CONTAINS
	228
[11536]	229	SUBROUTINE mpp_start( localComm )
[2715]	230	!!----------------------------------------------------------------------
[11536]	231	!! * routine mpp_start *
[3764]	232	!!
[11536]	233	!! ** Purpose : get mpi_comm_oce, mpprank and mppsize
[51]	234	!!----------------------------------------------------------------------
[6140]	235	INTEGER , OPTIONAL , INTENT(in ) :: localComm !
[2715]	236	!
[11536]	237	INTEGER :: ierr
	238	LOGICAL :: llmpi_init
[51]	239	!!----------------------------------------------------------------------
[14229]	240	#if ! defined key_mpi_off
[1344]	241	!
[11536]	242	CALL mpi_initialized ( llmpi_init, ierr )
	243	IF( ierr /= MPI_SUCCESS ) CALL ctl_stop( 'STOP', ' lib_mpp: Error in routine mpi_initialized' )
[2715]	244
[11536]	245	IF( .NOT. llmpi_init ) THEN
	246	IF( PRESENT(localComm) ) THEN
	247	WRITE(ctmp1,*) ' lib_mpp: You cannot provide a local communicator '
	248	WRITE(ctmp2,*) ' without calling MPI_Init before ! '
	249	CALL ctl_stop( 'STOP', ctmp1, ctmp2 )
	250	ENDIF
	251	CALL mpi_init( ierr )
	252	IF( ierr /= MPI_SUCCESS ) CALL ctl_stop( 'STOP', ' lib_mpp: Error in routine mpi_init' )
[2480]	253	ENDIF
[14072]	254
[3764]	255	IF( PRESENT(localComm) ) THEN
[2480]	256	IF( Agrif_Root() ) THEN
[9570]	257	mpi_comm_oce = localComm
[2480]	258	ENDIF
	259	ELSE
[11536]	260	CALL mpi_comm_dup( mpi_comm_world, mpi_comm_oce, ierr)
	261	IF( ierr /= MPI_SUCCESS ) CALL ctl_stop( 'STOP', ' lib_mpp: Error in routine mpi_comm_dup' )
[3764]	262	ENDIF
[2480]	263
[11536]	264	# if defined key_agrif
[9019]	265	IF( Agrif_Root() ) THEN
[9570]	266	CALL Agrif_MPI_Init(mpi_comm_oce)
[5656]	267	ELSE
[9570]	268	CALL Agrif_MPI_set_grid_comm(mpi_comm_oce)
[5656]	269	ENDIF
[11536]	270	# endif
[5656]	271
[9570]	272	CALL mpi_comm_rank( mpi_comm_oce, mpprank, ierr )
	273	CALL mpi_comm_size( mpi_comm_oce, mppsize, ierr )
[3764]	274	!
[1976]	275	CALL MPI_OP_CREATE(DDPDD_MPI, .TRUE., MPI_SUMDD, ierr)
	276	!
[11536]	277	#else
	278	IF( PRESENT( localComm ) ) mpi_comm_oce = localComm
	279	mppsize = 1
	280	mpprank = 0
	281	#endif
	282	END SUBROUTINE mpp_start
[3]	283
[6140]	284
[1344]	285	SUBROUTINE mppsend( ktyp, pmess, kbytes, kdest, md_req )
[51]	286	!!----------------------------------------------------------------------
	287	!! * routine mppsend *
[3764]	288	!!
[51]	289	!! ** Purpose : Send messag passing array
	290	!!
	291	!!----------------------------------------------------------------------
[1344]	292	REAL(wp), 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
[14338]	296	INTEGER , INTENT(inout) :: md_req ! argument for isend
[1344]	297	!!
	298	INTEGER :: iflag
[13226]	299	INTEGER :: mpi_working_type
[51]	300	!!----------------------------------------------------------------------
[1344]	301	!
[14229]	302	#if ! defined key_mpi_off
[13226]	303	IF (wp == dp) THEN
	304	mpi_working_type = mpi_double_precision
	305	ELSE
	306	mpi_working_type = mpi_real
	307	END IF
	308	CALL mpi_isend( pmess, kbytes, mpi_working_type, kdest , ktyp, mpi_comm_oce, md_req, iflag )
[11536]	309	#endif
[1344]	310	!
[51]	311	END SUBROUTINE mppsend
[3]	312
	313
[13226]	314	SUBROUTINE mppsend_dp( ktyp, pmess, kbytes, kdest, md_req )
	315	!!----------------------------------------------------------------------
	316	!! * routine mppsend *
	317	!!
	318	!! ** Purpose : Send messag passing array
	319	!!
	320	!!----------------------------------------------------------------------
	321	REAL(dp), INTENT(inout) :: pmess(*) ! array of real
	322	INTEGER , INTENT(in ) :: kbytes ! size of the array pmess
	323	INTEGER , INTENT(in ) :: kdest ! receive process number
	324	INTEGER , INTENT(in ) :: ktyp ! tag of the message
[14338]	325	INTEGER , INTENT(inout) :: md_req ! argument for isend
[13226]	326	!!
	327	INTEGER :: iflag
	328	!!----------------------------------------------------------------------
	329	!
[14229]	330	#if ! defined key_mpi_off
[13226]	331	CALL mpi_isend( pmess, kbytes, mpi_double_precision, kdest , ktyp, mpi_comm_oce, md_req, iflag )
	332	#endif
	333	!
	334	END SUBROUTINE mppsend_dp
	335
	336
	337	SUBROUTINE mppsend_sp( ktyp, pmess, kbytes, kdest, md_req )
	338	!!----------------------------------------------------------------------
	339	!! * routine mppsend *
	340	!!
	341	!! ** Purpose : Send messag passing array
	342	!!
	343	!!----------------------------------------------------------------------
	344	REAL(sp), INTENT(inout) :: pmess(*) ! array of real
	345	INTEGER , INTENT(in ) :: kbytes ! size of the array pmess
	346	INTEGER , INTENT(in ) :: kdest ! receive process number
	347	INTEGER , INTENT(in ) :: ktyp ! tag of the message
[14338]	348	INTEGER , INTENT(inout) :: md_req ! argument for isend
[13226]	349	!!
	350	INTEGER :: iflag
	351	!!----------------------------------------------------------------------
	352	!
[14229]	353	#if ! defined key_mpi_off
[13226]	354	CALL mpi_isend( pmess, kbytes, mpi_real, kdest , ktyp, mpi_comm_oce, md_req, iflag )
	355	#endif
	356	!
	357	END SUBROUTINE mppsend_sp
	358
	359
[3294]	360	SUBROUTINE mpprecv( ktyp, pmess, kbytes, ksource )
[51]	361	!!----------------------------------------------------------------------
	362	!! * routine mpprecv *
	363	!!
	364	!! ** Purpose : Receive messag passing array
	365	!!
	366	!!----------------------------------------------------------------------
[1344]	367	REAL(wp), INTENT(inout) :: pmess(*) ! array of real
	368	INTEGER , INTENT(in ) :: kbytes ! suze of the array pmess
	369	INTEGER , INTENT(in ) :: ktyp ! Tag of the recevied message
[3764]	370	INTEGER, OPTIONAL, INTENT(in) :: ksource ! source process number
[1344]	371	!!
[51]	372	INTEGER :: istatus(mpi_status_size)
	373	INTEGER :: iflag
[3294]	374	INTEGER :: use_source
[13226]	375	INTEGER :: mpi_working_type
[1344]	376	!!----------------------------------------------------------------------
	377	!
[14229]	378	#if ! defined key_mpi_off
[3764]	379	! If a specific process number has been passed to the receive call,
[3294]	380	! use that one. Default is to use mpi_any_source
[6140]	381	use_source = mpi_any_source
	382	IF( PRESENT(ksource) ) use_source = ksource
	383	!
[13226]	384	IF (wp == dp) THEN
	385	mpi_working_type = mpi_double_precision
	386	ELSE
	387	mpi_working_type = mpi_real
	388	END IF
	389	CALL mpi_recv( pmess, kbytes, mpi_working_type, use_source, ktyp, mpi_comm_oce, istatus, iflag )
[11536]	390	#endif
[1344]	391	!
[51]	392	END SUBROUTINE mpprecv
[3]	393
[13226]	394	SUBROUTINE mpprecv_dp( ktyp, pmess, kbytes, ksource )
	395	!!----------------------------------------------------------------------
	396	!! * routine mpprecv *
	397	!!
	398	!! ** Purpose : Receive messag passing array
	399	!!
	400	!!----------------------------------------------------------------------
	401	REAL(dp), 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	!
[14229]	411	#if ! defined key_mpi_off
[13226]	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_double_precision, use_source, ktyp, mpi_comm_oce, istatus, iflag )
	418	#endif
	419	!
	420	END SUBROUTINE mpprecv_dp
[3]	421
[13226]	422
	423	SUBROUTINE mpprecv_sp( ktyp, pmess, kbytes, ksource )
	424	!!----------------------------------------------------------------------
	425	!! * routine mpprecv *
	426	!!
	427	!! ** Purpose : Receive messag passing array
	428	!!
	429	!!----------------------------------------------------------------------
	430	REAL(sp), INTENT(inout) :: pmess(*) ! array of real
	431	INTEGER , INTENT(in ) :: kbytes ! suze of the array pmess
	432	INTEGER , INTENT(in ) :: ktyp ! Tag of the recevied message
	433	INTEGER, OPTIONAL, INTENT(in) :: ksource ! source process number
	434	!!
	435	INTEGER :: istatus(mpi_status_size)
	436	INTEGER :: iflag
	437	INTEGER :: use_source
	438	!!----------------------------------------------------------------------
	439	!
[14229]	440	#if ! defined key_mpi_off
[13226]	441	! If a specific process number has been passed to the receive call,
	442	! use that one. Default is to use mpi_any_source
	443	use_source = mpi_any_source
	444	IF( PRESENT(ksource) ) use_source = ksource
	445	!
	446	CALL mpi_recv( pmess, kbytes, mpi_real, use_source, ktyp, mpi_comm_oce, istatus, iflag )
	447	#endif
	448	!
	449	END SUBROUTINE mpprecv_sp
	450
	451
[51]	452	SUBROUTINE mppgather( ptab, kp, pio )
	453	!!----------------------------------------------------------------------
	454	!! * routine mppgather *
[3764]	455	!!
	456	!! ** Purpose : Transfert between a local subdomain array and a work
[51]	457	!! array which is distributed following the vertical level.
	458	!!
[1344]	459	!!----------------------------------------------------------------------
[6140]	460	REAL(wp), DIMENSION(jpi,jpj) , INTENT(in ) :: ptab ! subdomain input array
	461	INTEGER , INTENT(in ) :: kp ! record length
[1344]	462	REAL(wp), DIMENSION(jpi,jpj,jpnij), INTENT( out) :: pio ! subdomain input array
[51]	463	!!
[1344]	464	INTEGER :: itaille, ierror ! temporary integer
[51]	465	!!---------------------------------------------------------------------
[1344]	466	!
	467	itaille = jpi * jpj
[14229]	468	#if ! defined key_mpi_off
[1344]	469	CALL mpi_gather( ptab, itaille, mpi_double_precision, pio, itaille , &
[9570]	470	& mpi_double_precision, kp , mpi_comm_oce, ierror )
[11536]	471	#else
	472	pio(:,:,1) = ptab(:,:)
	473	#endif
[1344]	474	!
[51]	475	END SUBROUTINE mppgather
[3]	476
	477
[51]	478	SUBROUTINE mppscatter( pio, kp, ptab )
	479	!!----------------------------------------------------------------------
	480	!! * routine mppscatter *
	481	!!
[3764]	482	!! ** Purpose : Transfert between awork array which is distributed
[51]	483	!! following the vertical level and the local subdomain array.
	484	!!
	485	!!----------------------------------------------------------------------
[6140]	486	REAL(wp), DIMENSION(jpi,jpj,jpnij) :: pio ! output array
	487	INTEGER :: kp ! Tag (not used with MPI
	488	REAL(wp), DIMENSION(jpi,jpj) :: ptab ! subdomain array input
[1344]	489	!!
	490	INTEGER :: itaille, ierror ! temporary integer
[51]	491	!!---------------------------------------------------------------------
[1344]	492	!
[6140]	493	itaille = jpi * jpj
[1344]	494	!
[14229]	495	#if ! defined key_mpi_off
[1344]	496	CALL mpi_scatter( pio, itaille, mpi_double_precision, ptab, itaille , &
[9570]	497	& mpi_double_precision, kp , mpi_comm_oce, ierror )
[11536]	498	#else
	499	ptab(:,:) = pio(:,:,1)
	500	#endif
[1344]	501	!
[51]	502	END SUBROUTINE mppscatter
[3]	503
[14072]	504
[10425]	505	SUBROUTINE mpp_delay_sum( cdname, cdelay, y_in, pout, ldlast, kcom )
	506	!!----------------------------------------------------------------------
	507	!! * routine mpp_delay_sum *
[1344]	508	!!
[10425]	509	!! ** Purpose : performed delayed mpp_sum, the result is received on next call
	510	!!
[1344]	511	!!----------------------------------------------------------------------
[10425]	512	CHARACTER(len=*), INTENT(in ) :: cdname ! name of the calling subroutine
	513	CHARACTER(len=*), INTENT(in ) :: cdelay ! name (used as id) of the delayed operation
[13226]	514	COMPLEX(dp), INTENT(in ), DIMENSION(:) :: y_in
[10425]	515	REAL(wp), INTENT( out), DIMENSION(:) :: pout
	516	LOGICAL, INTENT(in ) :: ldlast ! true if this is the last time we call this routine
	517	INTEGER, INTENT(in ), OPTIONAL :: kcom
[1344]	518	!!
[10425]	519	INTEGER :: ji, isz
	520	INTEGER :: idvar
	521	INTEGER :: ierr, ilocalcomm
[13226]	522	COMPLEX(dp), ALLOCATABLE, DIMENSION(:) :: ytmp
[1344]	523	!!----------------------------------------------------------------------
[14229]	524	#if ! defined key_mpi_off
[9570]	525	ilocalcomm = mpi_comm_oce
[9019]	526	IF( PRESENT(kcom) ) ilocalcomm = kcom
[3]	527
[10425]	528	isz = SIZE(y_in)
[14072]	529
[10437]	530	IF( narea == 1 .AND. numcom == -1 ) CALL mpp_report( cdname, ld_dlg = .TRUE. )
[13]	531
[10425]	532	idvar = -1
	533	DO ji = 1, nbdelay
	534	IF( TRIM(cdelay) == TRIM(c_delaylist(ji)) ) idvar = ji
	535	END DO
	536	IF ( idvar == -1 ) CALL ctl_stop( 'STOP',' mpp_delay_sum : please add a new delayed exchange for '//TRIM(cdname) )
	537
	538	IF ( ndelayid(idvar) == 0 ) THEN ! first call with restart: %z1d defined in iom_delay_rst
	539	! --------------------------
	540	IF ( SIZE(todelay(idvar)%z1d) /= isz ) THEN ! Check dimension coherence
	541	IF(lwp) WRITE(numout,*) ' WARNING: the nb of delayed variables in restart file is not the model one'
	542	DEALLOCATE(todelay(idvar)%z1d)
	543	ndelayid(idvar) = -1 ! do as if we had no restart
	544	ELSE
	545	ALLOCATE(todelay(idvar)%y1d(isz))
	546	todelay(idvar)%y1d(:) = CMPLX(todelay(idvar)%z1d(:), 0., wp) ! create %y1d, complex variable needed by mpi_sumdd
[13636]	547	ndelayid(idvar) = MPI_REQUEST_NULL ! initialised request to a valid value
[10425]	548	END IF
	549	ENDIF
[14072]	550
[10425]	551	IF( ndelayid(idvar) == -1 ) THEN ! first call without restart: define %y1d and %z1d from y_in with blocking allreduce
	552	! --------------------------
	553	ALLOCATE(todelay(idvar)%z1d(isz), todelay(idvar)%y1d(isz)) ! allocate also %z1d as used for the restart
	554	CALL mpi_allreduce( y_in(:), todelay(idvar)%y1d(:), isz, MPI_DOUBLE_COMPLEX, mpi_sumdd, ilocalcomm, ierr ) ! get %y1d
[13636]	555	ndelayid(idvar) = MPI_REQUEST_NULL
[10425]	556	ENDIF
	557
[13636]	558	CALL mpp_delay_rcv( idvar ) ! make sure %z1d is received
[10425]	559
	560	! send back pout from todelay(idvar)%z1d defined at previous call
	561	pout(:) = todelay(idvar)%z1d(:)
	562
	563	! send y_in into todelay(idvar)%y1d with a non-blocking communication
[11536]	564	# if defined key_mpi2
[10526]	565	IF( ln_timing ) CALL tic_tac( .TRUE., ld_global = .TRUE.)
[12512]	566	CALL mpi_allreduce( y_in(:), todelay(idvar)%y1d(:), isz, MPI_DOUBLE_COMPLEX, mpi_sumdd, ilocalcomm, ierr )
[13636]	567	ndelayid(idvar) = MPI_REQUEST_NULL
[10526]	568	IF( ln_timing ) CALL tic_tac(.FALSE., ld_global = .TRUE.)
[11536]	569	# else
	570	CALL mpi_iallreduce( y_in(:), todelay(idvar)%y1d(:), isz, MPI_DOUBLE_COMPLEX, mpi_sumdd, ilocalcomm, ndelayid(idvar), ierr )
	571	# endif
[10526]	572	#else
[11536]	573	pout(:) = REAL(y_in(:), wp)
[10526]	574	#endif
[10425]	575
	576	END SUBROUTINE mpp_delay_sum
	577
[14072]	578
[10425]	579	SUBROUTINE mpp_delay_max( cdname, cdelay, p_in, pout, ldlast, kcom )
[9019]	580	!!----------------------------------------------------------------------
[10425]	581	!! * routine mpp_delay_max *
[9019]	582	!!
[10425]	583	!! ** Purpose : performed delayed mpp_max, the result is received on next call
[9019]	584	!!
	585	!!----------------------------------------------------------------------
[10425]	586	CHARACTER(len=*), INTENT(in ) :: cdname ! name of the calling subroutine
	587	CHARACTER(len=*), INTENT(in ) :: cdelay ! name (used as id) of the delayed operation
[14072]	588	REAL(wp), INTENT(in ), DIMENSION(:) :: p_in !
	589	REAL(wp), INTENT( out), DIMENSION(:) :: pout !
[10425]	590	LOGICAL, INTENT(in ) :: ldlast ! true if this is the last time we call this routine
	591	INTEGER, INTENT(in ), OPTIONAL :: kcom
[9019]	592	!!
[10425]	593	INTEGER :: ji, isz
	594	INTEGER :: idvar
	595	INTEGER :: ierr, ilocalcomm
[13226]	596	INTEGER :: MPI_TYPE
[9019]	597	!!----------------------------------------------------------------------
[14072]	598
[14229]	599	#if ! defined key_mpi_off
[13226]	600	if( wp == dp ) then
	601	MPI_TYPE = MPI_DOUBLE_PRECISION
	602	else if ( wp == sp ) then
	603	MPI_TYPE = MPI_REAL
	604	else
	605	CALL ctl_stop( "Error defining type, wp is neither dp nor sp" )
[14072]	606
[13226]	607	end if
	608
[9570]	609	ilocalcomm = mpi_comm_oce
[9019]	610	IF( PRESENT(kcom) ) ilocalcomm = kcom
[6140]	611
[10425]	612	isz = SIZE(p_in)
[9019]	613
[10437]	614	IF( narea == 1 .AND. numcom == -1 ) CALL mpp_report( cdname, ld_dlg = .TRUE. )
[13]	615
[10425]	616	idvar = -1
	617	DO ji = 1, nbdelay
	618	IF( TRIM(cdelay) == TRIM(c_delaylist(ji)) ) idvar = ji
	619	END DO
	620	IF ( idvar == -1 ) CALL ctl_stop( 'STOP',' mpp_delay_max : please add a new delayed exchange for '//TRIM(cdname) )
[3]	621
[10425]	622	IF ( ndelayid(idvar) == 0 ) THEN ! first call with restart: %z1d defined in iom_delay_rst
	623	! --------------------------
	624	IF ( SIZE(todelay(idvar)%z1d) /= isz ) THEN ! Check dimension coherence
	625	IF(lwp) WRITE(numout,*) ' WARNING: the nb of delayed variables in restart file is not the model one'
	626	DEALLOCATE(todelay(idvar)%z1d)
	627	ndelayid(idvar) = -1 ! do as if we had no restart
[13636]	628	ELSE
	629	ndelayid(idvar) = MPI_REQUEST_NULL
[10425]	630	END IF
	631	ENDIF
[13]	632
[10425]	633	IF( ndelayid(idvar) == -1 ) THEN ! first call without restart: define %z1d from p_in with a blocking allreduce
	634	! --------------------------
	635	ALLOCATE(todelay(idvar)%z1d(isz))
	636	CALL mpi_allreduce( p_in(:), todelay(idvar)%z1d(:), isz, MPI_DOUBLE_PRECISION, mpi_max, ilocalcomm, ierr ) ! get %z1d
[13636]	637	ndelayid(idvar) = MPI_REQUEST_NULL
[10425]	638	ENDIF
[3]	639
[13636]	640	CALL mpp_delay_rcv( idvar ) ! make sure %z1d is received
[3]	641
[10425]	642	! send back pout from todelay(idvar)%z1d defined at previous call
	643	pout(:) = todelay(idvar)%z1d(:)
[13]	644
[10425]	645	! send p_in into todelay(idvar)%z1d with a non-blocking communication
[13636]	646	! (PM) Should we get rid of MPI2 option ? MPI3 was release in 2013. Who is still using MPI2 ?
[11536]	647	# if defined key_mpi2
[10526]	648	IF( ln_timing ) CALL tic_tac( .TRUE., ld_global = .TRUE.)
[13636]	649	CALL mpi_allreduce( p_in(:), todelay(idvar)%z1d(:), isz, MPI_TYPE, mpi_max, ilocalcomm, ierr )
[10526]	650	IF( ln_timing ) CALL tic_tac(.FALSE., ld_global = .TRUE.)
[11536]	651	# else
[13226]	652	CALL mpi_iallreduce( p_in(:), todelay(idvar)%z1d(:), isz, MPI_TYPE, mpi_max, ilocalcomm, ndelayid(idvar), ierr )
[11536]	653	# endif
[10526]	654	#else
[11536]	655	pout(:) = p_in(:)
[10526]	656	#endif
[10425]	657
	658	END SUBROUTINE mpp_delay_max
	659
[14072]	660
[10425]	661	SUBROUTINE mpp_delay_rcv( kid )
	662	!!----------------------------------------------------------------------
	663	!! * routine mpp_delay_rcv *
[1344]	664	!!
[14072]	665	!! ** Purpose : force barrier for delayed mpp (needed for restart)
[1344]	666	!!
[10425]	667	!!----------------------------------------------------------------------
[14072]	668	INTEGER,INTENT(in ) :: kid
[10425]	669	INTEGER :: ierr
	670	!!----------------------------------------------------------------------
[14229]	671	#if ! defined key_mpi_off
[13636]	672	IF( ln_timing ) CALL tic_tac( .TRUE., ld_global = .TRUE.)
	673	! test on ndelayid(kid) useless as mpi_wait return immediatly if the request handle is MPI_REQUEST_NULL
	674	CALL mpi_wait( ndelayid(kid), MPI_STATUS_IGNORE, ierr ) ! after this ndelayid(kid) = MPI_REQUEST_NULL
	675	IF( ln_timing ) CALL tic_tac( .FALSE., ld_global = .TRUE.)
	676	IF( ASSOCIATED(todelay(kid)%y1d) ) todelay(kid)%z1d(:) = REAL(todelay(kid)%y1d(:), wp) ! define %z1d from %y1d
[10526]	677	#endif
[10425]	678	END SUBROUTINE mpp_delay_rcv
[3]	679
[12377]	680	SUBROUTINE mpp_bcast_nml( cdnambuff , kleng )
	681	CHARACTER(LEN=:) , ALLOCATABLE, INTENT(INOUT) :: cdnambuff
	682	INTEGER , INTENT(INOUT) :: kleng
	683	!!----------------------------------------------------------------------
	684	!! * routine mpp_bcast_nml *
	685	!!
	686	!! ** Purpose : broadcast namelist character buffer
	687	!!
	688	!!----------------------------------------------------------------------
	689	!!
	690	INTEGER :: iflag
	691	!!----------------------------------------------------------------------
	692	!
[14229]	693	#if ! defined key_mpi_off
[12377]	694	call MPI_BCAST(kleng, 1, MPI_INT, 0, mpi_comm_oce, iflag)
	695	call MPI_BARRIER(mpi_comm_oce, iflag)
	696	!$AGRIF_DO_NOT_TREAT
	697	IF ( .NOT. ALLOCATED(cdnambuff) ) ALLOCATE( CHARACTER(LEN=kleng) :: cdnambuff )
	698	!$AGRIF_END_DO_NOT_TREAT
	699	call MPI_BCAST(cdnambuff, kleng, MPI_CHARACTER, 0, mpi_comm_oce, iflag)
	700	call MPI_BARRIER(mpi_comm_oce, iflag)
	701	#endif
	702	!
	703	END SUBROUTINE mpp_bcast_nml
	704
[14072]	705
[10425]	706	!!----------------------------------------------------------------------
	707	!! * mppmax_a_int, mppmax_int, mppmax_a_real, mppmax_real *
[14072]	708	!!
[10425]	709	!!----------------------------------------------------------------------
	710	!!
	711	# define OPERATION_MAX
	712	# define INTEGER_TYPE
	713	# define DIM_0d
	714	# define ROUTINE_ALLREDUCE mppmax_int
	715	# include "mpp_allreduce_generic.h90"
	716	# undef ROUTINE_ALLREDUCE
	717	# undef DIM_0d
	718	# define DIM_1d
	719	# define ROUTINE_ALLREDUCE mppmax_a_int
	720	# include "mpp_allreduce_generic.h90"
	721	# undef ROUTINE_ALLREDUCE
	722	# undef DIM_1d
	723	# undef INTEGER_TYPE
	724	!
[13226]	725	!!
	726	!! ---- SINGLE PRECISION VERSIONS
	727	!!
	728	# define SINGLE_PRECISION
[10425]	729	# define REAL_TYPE
	730	# define DIM_0d
[13226]	731	# define ROUTINE_ALLREDUCE mppmax_real_sp
[10425]	732	# include "mpp_allreduce_generic.h90"
	733	# undef ROUTINE_ALLREDUCE
	734	# undef DIM_0d
	735	# define DIM_1d
[13226]	736	# define ROUTINE_ALLREDUCE mppmax_a_real_sp
[10425]	737	# include "mpp_allreduce_generic.h90"
	738	# undef ROUTINE_ALLREDUCE
	739	# undef DIM_1d
[13226]	740	# undef SINGLE_PRECISION
	741	!!
	742	!!
	743	!! ---- DOUBLE PRECISION VERSIONS
	744	!!
	745	!
	746	# define DIM_0d
	747	# define ROUTINE_ALLREDUCE mppmax_real_dp
	748	# include "mpp_allreduce_generic.h90"
	749	# undef ROUTINE_ALLREDUCE
	750	# undef DIM_0d
	751	# define DIM_1d
	752	# define ROUTINE_ALLREDUCE mppmax_a_real_dp
	753	# include "mpp_allreduce_generic.h90"
	754	# undef ROUTINE_ALLREDUCE
	755	# undef DIM_1d
[10425]	756	# undef REAL_TYPE
	757	# undef OPERATION_MAX
	758	!!----------------------------------------------------------------------
	759	!! * mppmin_a_int, mppmin_int, mppmin_a_real, mppmin_real *
[14072]	760	!!
[10425]	761	!!----------------------------------------------------------------------
	762	!!
	763	# define OPERATION_MIN
	764	# define INTEGER_TYPE
	765	# define DIM_0d
	766	# define ROUTINE_ALLREDUCE mppmin_int
	767	# include "mpp_allreduce_generic.h90"
	768	# undef ROUTINE_ALLREDUCE
	769	# undef DIM_0d
	770	# define DIM_1d
	771	# define ROUTINE_ALLREDUCE mppmin_a_int
	772	# include "mpp_allreduce_generic.h90"
	773	# undef ROUTINE_ALLREDUCE
	774	# undef DIM_1d
	775	# undef INTEGER_TYPE
	776	!
[13226]	777	!!
	778	!! ---- SINGLE PRECISION VERSIONS
	779	!!
	780	# define SINGLE_PRECISION
[10425]	781	# define REAL_TYPE
	782	# define DIM_0d
[13226]	783	# define ROUTINE_ALLREDUCE mppmin_real_sp
[10425]	784	# include "mpp_allreduce_generic.h90"
	785	# undef ROUTINE_ALLREDUCE
	786	# undef DIM_0d
	787	# define DIM_1d
[13226]	788	# define ROUTINE_ALLREDUCE mppmin_a_real_sp
[10425]	789	# include "mpp_allreduce_generic.h90"
	790	# undef ROUTINE_ALLREDUCE
	791	# undef DIM_1d
[13226]	792	# undef SINGLE_PRECISION
	793	!!
	794	!! ---- DOUBLE PRECISION VERSIONS
	795	!!
	796
	797	# define DIM_0d
	798	# define ROUTINE_ALLREDUCE mppmin_real_dp
	799	# include "mpp_allreduce_generic.h90"
	800	# undef ROUTINE_ALLREDUCE
	801	# undef DIM_0d
	802	# define DIM_1d
	803	# define ROUTINE_ALLREDUCE mppmin_a_real_dp
	804	# include "mpp_allreduce_generic.h90"
	805	# undef ROUTINE_ALLREDUCE
	806	# undef DIM_1d
[10425]	807	# undef REAL_TYPE
	808	# undef OPERATION_MIN
[869]	809
[10425]	810	!!----------------------------------------------------------------------
	811	!! * mppsum_a_int, mppsum_int, mppsum_a_real, mppsum_real *
[14072]	812	!!
[10425]	813	!! Global sum of 1D array or a variable (integer, real or complex)
	814	!!----------------------------------------------------------------------
	815	!!
	816	# define OPERATION_SUM
	817	# define INTEGER_TYPE
	818	# define DIM_0d
	819	# define ROUTINE_ALLREDUCE mppsum_int
	820	# include "mpp_allreduce_generic.h90"
	821	# undef ROUTINE_ALLREDUCE
	822	# undef DIM_0d
	823	# define DIM_1d
	824	# define ROUTINE_ALLREDUCE mppsum_a_int
	825	# include "mpp_allreduce_generic.h90"
	826	# undef ROUTINE_ALLREDUCE
	827	# undef DIM_1d
	828	# undef INTEGER_TYPE
[13226]	829
	830	!!
	831	!! ---- SINGLE PRECISION VERSIONS
	832	!!
	833	# define OPERATION_SUM
	834	# define SINGLE_PRECISION
[10425]	835	# define REAL_TYPE
	836	# define DIM_0d
[13226]	837	# define ROUTINE_ALLREDUCE mppsum_real_sp
[10425]	838	# include "mpp_allreduce_generic.h90"
	839	# undef ROUTINE_ALLREDUCE
	840	# undef DIM_0d
	841	# define DIM_1d
[13226]	842	# define ROUTINE_ALLREDUCE mppsum_a_real_sp
[10425]	843	# include "mpp_allreduce_generic.h90"
	844	# undef ROUTINE_ALLREDUCE
	845	# undef DIM_1d
	846	# undef REAL_TYPE
	847	# undef OPERATION_SUM
	848
[13226]	849	# undef SINGLE_PRECISION
	850
	851	!!
	852	!! ---- DOUBLE PRECISION VERSIONS
	853	!!
	854	# define OPERATION_SUM
	855	# define REAL_TYPE
	856	# define DIM_0d
	857	# define ROUTINE_ALLREDUCE mppsum_real_dp
	858	# include "mpp_allreduce_generic.h90"
	859	# undef ROUTINE_ALLREDUCE
	860	# undef DIM_0d
	861	# define DIM_1d
	862	# define ROUTINE_ALLREDUCE mppsum_a_real_dp
	863	# include "mpp_allreduce_generic.h90"
	864	# undef ROUTINE_ALLREDUCE
	865	# undef DIM_1d
	866	# undef REAL_TYPE
	867	# undef OPERATION_SUM
	868
[10425]	869	# define OPERATION_SUM_DD
	870	# define COMPLEX_TYPE
	871	# define DIM_0d
	872	# define ROUTINE_ALLREDUCE mppsum_realdd
	873	# include "mpp_allreduce_generic.h90"
	874	# undef ROUTINE_ALLREDUCE
	875	# undef DIM_0d
	876	# define DIM_1d
	877	# define ROUTINE_ALLREDUCE mppsum_a_realdd
	878	# include "mpp_allreduce_generic.h90"
	879	# undef ROUTINE_ALLREDUCE
	880	# undef DIM_1d
	881	# undef COMPLEX_TYPE
	882	# undef OPERATION_SUM_DD
	883
	884	!!----------------------------------------------------------------------
	885	!! *** mpp_minloc2d, mpp_minloc3d, mpp_maxloc2d, mpp_maxloc3d
[14072]	886	!!
[10425]	887	!!----------------------------------------------------------------------
	888	!!
[13226]	889	!!
	890	!! ---- SINGLE PRECISION VERSIONS
	891	!!
	892	# define SINGLE_PRECISION
[10425]	893	# define OPERATION_MINLOC
	894	# define DIM_2d
[13226]	895	# define ROUTINE_LOC mpp_minloc2d_sp
[10425]	896	# include "mpp_loc_generic.h90"
	897	# undef ROUTINE_LOC
	898	# undef DIM_2d
	899	# define DIM_3d
[13226]	900	# define ROUTINE_LOC mpp_minloc3d_sp
[10425]	901	# include "mpp_loc_generic.h90"
	902	# undef ROUTINE_LOC
	903	# undef DIM_3d
	904	# undef OPERATION_MINLOC
	905
	906	# define OPERATION_MAXLOC
	907	# define DIM_2d
[13226]	908	# define ROUTINE_LOC mpp_maxloc2d_sp
[10425]	909	# include "mpp_loc_generic.h90"
	910	# undef ROUTINE_LOC
	911	# undef DIM_2d
	912	# define DIM_3d
[13226]	913	# define ROUTINE_LOC mpp_maxloc3d_sp
[10425]	914	# include "mpp_loc_generic.h90"
	915	# undef ROUTINE_LOC
	916	# undef DIM_3d
	917	# undef OPERATION_MAXLOC
[13226]	918	# undef SINGLE_PRECISION
	919	!!
	920	!! ---- DOUBLE PRECISION VERSIONS
	921	!!
	922	# define OPERATION_MINLOC
	923	# define DIM_2d
	924	# define ROUTINE_LOC mpp_minloc2d_dp
	925	# include "mpp_loc_generic.h90"
	926	# undef ROUTINE_LOC
	927	# undef DIM_2d
	928	# define DIM_3d
	929	# define ROUTINE_LOC mpp_minloc3d_dp
	930	# include "mpp_loc_generic.h90"
	931	# undef ROUTINE_LOC
	932	# undef DIM_3d
	933	# undef OPERATION_MINLOC
[10425]	934
[13226]	935	# define OPERATION_MAXLOC
	936	# define DIM_2d
	937	# define ROUTINE_LOC mpp_maxloc2d_dp
	938	# include "mpp_loc_generic.h90"
	939	# undef ROUTINE_LOC
	940	# undef DIM_2d
	941	# define DIM_3d
	942	# define ROUTINE_LOC mpp_maxloc3d_dp
	943	# include "mpp_loc_generic.h90"
	944	# undef ROUTINE_LOC
	945	# undef DIM_3d
	946	# undef OPERATION_MAXLOC
	947
	948
[1344]	949	SUBROUTINE mppsync()
	950	!!----------------------------------------------------------------------
	951	!! * routine mppsync *
[3764]	952	!!
[1344]	953	!! ** Purpose : Massively parallel processors, synchroneous
	954	!!
	955	!!-----------------------------------------------------------------------
	956	INTEGER :: ierror
	957	!!-----------------------------------------------------------------------
	958	!
[14229]	959	#if ! defined key_mpi_off
[9570]	960	CALL mpi_barrier( mpi_comm_oce, ierror )
[11536]	961	#endif
[1344]	962	!
	963	END SUBROUTINE mppsync
[3]	964
	965
[14072]	966	SUBROUTINE mppstop( ld_abort )
[1344]	967	!!----------------------------------------------------------------------
	968	!! * routine mppstop *
[3764]	969	!!
[3294]	970	!! ** purpose : Stop massively parallel processors method
[1344]	971	!!
	972	!!----------------------------------------------------------------------
[11536]	973	LOGICAL, OPTIONAL, INTENT(in) :: ld_abort ! source process number
	974	LOGICAL :: ll_abort
[14338]	975	INTEGER :: info, ierr
[1344]	976	!!----------------------------------------------------------------------
[11536]	977	ll_abort = .FALSE.
	978	IF( PRESENT(ld_abort) ) ll_abort = ld_abort
[1344]	979	!
[14229]	980	#if ! defined key_mpi_off
[11536]	981	IF(ll_abort) THEN
[14338]	982	CALL mpi_abort( MPI_COMM_WORLD, 123, info )
[10425]	983	ELSE
	984	CALL mppsync
	985	CALL mpi_finalize( info )
	986	ENDIF
[11536]	987	#endif
	988	IF( ll_abort ) STOP 123
[1344]	989	!
	990	END SUBROUTINE mppstop
[3]	991
	992
[1344]	993	SUBROUTINE mpp_comm_free( kcom )
	994	!!----------------------------------------------------------------------
[14338]	995	INTEGER, INTENT(inout) :: kcom
[1344]	996	!!
	997	INTEGER :: ierr
	998	!!----------------------------------------------------------------------
	999	!
[14229]	1000	#if ! defined key_mpi_off
[1344]	1001	CALL MPI_COMM_FREE(kcom, ierr)
[11536]	1002	#endif
[1344]	1003	!
	1004	END SUBROUTINE mpp_comm_free
[3]	1005
[869]	1006
[2715]	1007	SUBROUTINE mpp_ini_znl( kumout )
[1345]	1008	!!----------------------------------------------------------------------
	1009	!! * routine mpp_ini_znl *
	1010	!!
	1011	!! ** Purpose : Initialize special communicator for computing zonal sum
	1012	!!
	1013	!! ** Method : - Look for processors in the same row
	1014	!! - Put their number in nrank_znl
	1015	!! - Create group for the znl processors
	1016	!! - Create a communicator for znl processors
	1017	!! - Determine if processor should write znl files
	1018	!!
	1019	!! ** output
	1020	!! ndim_rank_znl = number of processors on the same row
	1021	!! ngrp_znl = group ID for the znl processors
	1022	!! ncomm_znl = communicator for the ice procs.
	1023	!! n_znl_root = number (in the world) of proc 0 in the ice comm.
	1024	!!
	1025	!!----------------------------------------------------------------------
[2715]	1026	INTEGER, INTENT(in) :: kumout ! ocean.output logical units
[1345]	1027	!
[2715]	1028	INTEGER :: jproc ! dummy loop integer
	1029	INTEGER :: ierr, ii ! local integer
	1030	INTEGER, ALLOCATABLE, DIMENSION(:) :: kwork
	1031	!!----------------------------------------------------------------------
[14229]	1032	#if ! defined key_mpi_off
[14275]	1033	!-$$ WRITE (numout,*) 'mpp_ini_znl ', mpprank, ' - ngrp_world : ', ngrp_world
	1034	!-$$ WRITE (numout,*) 'mpp_ini_znl ', mpprank, ' - mpi_comm_world : ', mpi_comm_world
	1035	!-$$ WRITE (numout,*) 'mpp_ini_znl ', mpprank, ' - mpi_comm_oce : ', mpi_comm_oce
[1345]	1036	!
[2715]	1037	ALLOCATE( kwork(jpnij), STAT=ierr )
[11536]	1038	IF( ierr /= 0 ) CALL ctl_stop( 'STOP', 'mpp_ini_znl : failed to allocate 1D array of length jpnij')
[2715]	1039
	1040	IF( jpnj == 1 ) THEN
[1345]	1041	ngrp_znl = ngrp_world
[9570]	1042	ncomm_znl = mpi_comm_oce
[1345]	1043	ELSE
	1044	!
[9570]	1045	CALL MPI_ALLGATHER ( njmpp, 1, mpi_integer, kwork, 1, mpi_integer, mpi_comm_oce, ierr )
[14275]	1046	!-$$ WRITE (numout,*) 'mpp_ini_znl ', mpprank, ' - kwork pour njmpp : ', kwork
[1345]	1047	!-$$ CALL flush(numout)
	1048	!
	1049	! Count number of processors on the same row
	1050	ndim_rank_znl = 0
	1051	DO jproc=1,jpnij
	1052	IF ( kwork(jproc) == njmpp ) THEN
	1053	ndim_rank_znl = ndim_rank_znl + 1
	1054	ENDIF
	1055	END DO
[14275]	1056	!-$$ WRITE (numout,*) 'mpp_ini_znl ', mpprank, ' - ndim_rank_znl : ', ndim_rank_znl
[1345]	1057	!-$$ CALL flush(numout)
	1058	! Allocate the right size to nrank_znl
[1441]	1059	IF (ALLOCATED (nrank_znl)) DEALLOCATE(nrank_znl)
[1345]	1060	ALLOCATE(nrank_znl(ndim_rank_znl))
[3764]	1061	ii = 0
[1345]	1062	nrank_znl (:) = 0
	1063	DO jproc=1,jpnij
	1064	IF ( kwork(jproc) == njmpp) THEN
	1065	ii = ii + 1
[3764]	1066	nrank_znl(ii) = jproc -1
[1345]	1067	ENDIF
	1068	END DO
[14275]	1069	!-$$ WRITE (numout,*) 'mpp_ini_znl ', mpprank, ' - nrank_znl : ', nrank_znl
[1345]	1070	!-$$ CALL flush(numout)
	1071
	1072	! Create the opa group
[9570]	1073	CALL MPI_COMM_GROUP(mpi_comm_oce,ngrp_opa,ierr)
[14275]	1074	!-$$ WRITE (numout,*) 'mpp_ini_znl ', mpprank, ' - ngrp_opa : ', ngrp_opa
[1345]	1075	!-$$ CALL flush(numout)
	1076
	1077	! Create the znl group from the opa group
	1078	CALL MPI_GROUP_INCL ( ngrp_opa, ndim_rank_znl, nrank_znl, ngrp_znl, ierr )
[14275]	1079	!-$$ WRITE (numout,*) 'mpp_ini_znl ', mpprank, ' - ngrp_znl ', ngrp_znl
[1345]	1080	!-$$ CALL flush(numout)
	1081
	1082	! Create the znl communicator from the opa communicator, ie the pool of procs in the same row
[9570]	1083	CALL MPI_COMM_CREATE ( mpi_comm_oce, ngrp_znl, ncomm_znl, ierr )
[14275]	1084	!-$$ WRITE (numout,*) 'mpp_ini_znl ', mpprank, ' - ncomm_znl ', ncomm_znl
[1345]	1085	!-$$ CALL flush(numout)
	1086	!
	1087	END IF
	1088
	1089	! Determines if processor if the first (starting from i=1) on the row
[3764]	1090	IF ( jpni == 1 ) THEN
[1345]	1091	l_znl_root = .TRUE.
	1092	ELSE
	1093	l_znl_root = .FALSE.
	1094	kwork (1) = nimpp
[10425]	1095	CALL mpp_min ( 'lib_mpp', kwork(1), kcom = ncomm_znl)
[1345]	1096	IF ( nimpp == kwork(1)) l_znl_root = .TRUE.
	1097	END IF
	1098
[2715]	1099	DEALLOCATE(kwork)
[11536]	1100	#endif
[2715]	1101
[1345]	1102	END SUBROUTINE mpp_ini_znl
	1103
[14314]	1104
[14363]	1105	SUBROUTINE mpp_ini_nc( khls )
[13982]	1106	!!----------------------------------------------------------------------
	1107	!! * routine mpp_ini_nc *
	1108	!!
	1109	!! ** Purpose : Initialize special communicators for MPI3 neighbourhood
	1110	!! collectives
	1111	!!
[14072]	1112	!! ** Method : - Create graph communicators starting from the processes
[13982]	1113	!! distribution along i and j directions
	1114	!
	1115	!! ** output
[14314]	1116	!! mpi_nc_com4 = MPI3 neighbourhood collectives communicator
	1117	!! mpi_nc_com8 = MPI3 neighbourhood collectives communicator (with diagonals)
[13982]	1118	!!----------------------------------------------------------------------
[14363]	1119	INTEGER, INTENT(in ) :: khls ! halo size, default = nn_hls
	1120	!
	1121	INTEGER, DIMENSION(:), ALLOCATABLE :: iSnei4, iRnei4, iSnei8, iRnei8
	1122	INTEGER :: iScnt4, iRcnt4, iScnt8, iRcnt8
	1123	INTEGER :: ierr
	1124	LOGICAL, PARAMETER :: ireord = .FALSE.
[14314]	1125	!!----------------------------------------------------------------------
	1126	#if ! defined key_mpi_off && ! defined key_mpi2
	1127
[14363]	1128	iScnt4 = COUNT( mpiSnei(khls,1:4) >= 0 )
	1129	iRcnt4 = COUNT( mpiRnei(khls,1:4) >= 0 )
	1130	iScnt8 = COUNT( mpiSnei(khls,1:8) >= 0 )
	1131	iRcnt8 = COUNT( mpiRnei(khls,1:8) >= 0 )
[1345]	1132
[14363]	1133	ALLOCATE( iSnei4(iScnt4), iRnei4(iRcnt4), iSnei8(iScnt8), iRnei8(iRcnt8) ) ! ok if icnt4 or icnt8 = 0
[13982]	1134
[14363]	1135	iSnei4 = PACK( mpiSnei(khls,1:4), mask = mpiSnei(khls,1:4) >= 0 )
	1136	iRnei4 = PACK( mpiRnei(khls,1:4), mask = mpiRnei(khls,1:4) >= 0 )
	1137	iSnei8 = PACK( mpiSnei(khls,1:8), mask = mpiSnei(khls,1:8) >= 0 )
	1138	iRnei8 = PACK( mpiRnei(khls,1:8), mask = mpiRnei(khls,1:8) >= 0 )
[13982]	1139
[14363]	1140	CALL MPI_Dist_graph_create_adjacent( mpi_comm_oce, iScnt4, iSnei4, MPI_UNWEIGHTED, iRcnt4, iRnei4, MPI_UNWEIGHTED, &
	1141	& MPI_INFO_NULL, ireord, mpi_nc_com4(khls), ierr )
	1142	CALL MPI_Dist_graph_create_adjacent( mpi_comm_oce, iScnt8, iSnei8, MPI_UNWEIGHTED, iRcnt8, iRnei8, MPI_UNWEIGHTED, &
	1143	& MPI_INFO_NULL, ireord, mpi_nc_com8(khls), ierr)
[13982]	1144
[14363]	1145	DEALLOCATE( iSnei4, iRnei4, iSnei8, iRnei8 )
[13982]	1146	#endif
	1147	END SUBROUTINE mpp_ini_nc
	1148
	1149
[1344]	1150	SUBROUTINE mpp_ini_north
	1151	!!----------------------------------------------------------------------
	1152	!! * routine mpp_ini_north *
	1153	!!
[3764]	1154	!! ** Purpose : Initialize special communicator for north folding
[1344]	1155	!! condition together with global variables needed in the mpp folding
	1156	!!
	1157	!! ** Method : - Look for northern processors
	1158	!! - Put their number in nrank_north
	1159	!! - Create groups for the world processors and the north processors
	1160	!! - Create a communicator for northern processors
	1161	!!
	1162	!! ** output
	1163	!! ndim_rank_north = number of processors in the northern line
	1164	!! nrank_north (ndim_rank_north) = number of the northern procs.
	1165	!! ngrp_world = group ID for the world processors
	1166	!! ngrp_north = group ID for the northern processors
	1167	!! ncomm_north = communicator for the northern procs.
	1168	!! north_root = number (in the world) of proc 0 in the northern comm.
	1169	!!
	1170	!!----------------------------------------------------------------------
	1171	INTEGER :: ierr
	1172	INTEGER :: jjproc
	1173	INTEGER :: ii, ji
	1174	!!----------------------------------------------------------------------
	1175	!
[14229]	1176	#if ! defined key_mpi_off
[1344]	1177	!
	1178	! Look for how many procs on the northern boundary
	1179	ndim_rank_north = 0
[13286]	1180	DO jjproc = 1, jpni
	1181	IF( nfproc(jjproc) /= -1 ) ndim_rank_north = ndim_rank_north + 1
[1344]	1182	END DO
	1183	!
	1184	! Allocate the right size to nrank_north
[1441]	1185	IF (ALLOCATED (nrank_north)) DEALLOCATE(nrank_north)
[1344]	1186	ALLOCATE( nrank_north(ndim_rank_north) )
[869]	1187
[1344]	1188	! Fill the nrank_north array with proc. number of northern procs.
	1189	! Note : the rank start at 0 in MPI
	1190	ii = 0
[13286]	1191	DO ji = 1, jpni
	1192	IF ( nfproc(ji) /= -1 ) THEN
[1344]	1193	ii=ii+1
[13286]	1194	nrank_north(ii)=nfproc(ji)
[1344]	1195	END IF
	1196	END DO
	1197	!
	1198	! create the world group
[9570]	1199	CALL MPI_COMM_GROUP( mpi_comm_oce, ngrp_world, ierr )
[1344]	1200	!
	1201	! Create the North group from the world group
	1202	CALL MPI_GROUP_INCL( ngrp_world, ndim_rank_north, nrank_north, ngrp_north, ierr )
	1203	!
	1204	! Create the North communicator , ie the pool of procs in the north group
[9570]	1205	CALL MPI_COMM_CREATE( mpi_comm_oce, ngrp_north, ncomm_north, ierr )
[1344]	1206	!
[11536]	1207	#endif
[1344]	1208	END SUBROUTINE mpp_ini_north
[869]	1209
	1210
[9019]	1211	SUBROUTINE DDPDD_MPI( ydda, yddb, ilen, itype )
[1976]	1212	!!---------------------------------------------------------------------
	1213	!! Routine DDPDD_MPI: used by reduction operator MPI_SUMDD
	1214	!!
	1215	!! Modification of original codes written by David H. Bailey
	1216	!! This subroutine computes yddb(i) = ydda(i)+yddb(i)
	1217	!!---------------------------------------------------------------------
[9019]	1218	INTEGER , INTENT(in) :: ilen, itype
[13226]	1219	COMPLEX(dp), DIMENSION(ilen), INTENT(in) :: ydda
	1220	COMPLEX(dp), DIMENSION(ilen), INTENT(inout) :: yddb
[1976]	1221	!
[13226]	1222	REAL(dp) :: zerr, zt1, zt2 ! local work variables
[9019]	1223	INTEGER :: ji, ztmp ! local scalar
	1224	!!---------------------------------------------------------------------
	1225	!
[1976]	1226	ztmp = itype ! avoid compilation warning
[9019]	1227	!
[1976]	1228	DO ji=1,ilen
	1229	! Compute ydda + yddb using Knuth's trick.
	1230	zt1 = real(ydda(ji)) + real(yddb(ji))
	1231	zerr = zt1 - real(ydda(ji))
	1232	zt2 = ((real(yddb(ji)) - zerr) + (real(ydda(ji)) - (zt1 - zerr))) &
	1233	+ aimag(ydda(ji)) + aimag(yddb(ji))
	1234
	1235	! The result is zt1 + zt2, after normalization.
	1236	yddb(ji) = cmplx ( zt1 + zt2, zt2 - ((zt1 + zt2) - zt1),wp )
	1237	END DO
[9019]	1238	!
[1976]	1239	END SUBROUTINE DDPDD_MPI
	1240
[6140]	1241
[10437]	1242	SUBROUTINE mpp_report( cdname, kpk, kpl, kpf, ld_lbc, ld_glb, ld_dlg )
[10425]	1243	!!----------------------------------------------------------------------
	1244	!! * routine mpp_report *
	1245	!!
	1246	!! ** Purpose : report use of mpp routines per time-setp
	1247	!!
	1248	!!----------------------------------------------------------------------
	1249	CHARACTER(len=*), INTENT(in ) :: cdname ! name of the calling subroutine
	1250	INTEGER , OPTIONAL, INTENT(in ) :: kpk, kpl, kpf
[10437]	1251	LOGICAL , OPTIONAL, INTENT(in ) :: ld_lbc, ld_glb, ld_dlg
[10425]	1252	!!
[10982]	1253	CHARACTER(len=128) :: ccountname ! name of a subroutine to count communications
[10437]	1254	LOGICAL :: ll_lbc, ll_glb, ll_dlg
[10982]	1255	INTEGER :: ji, jj, jk, jh, jf, jcount ! dummy loop indices
[10425]	1256	!!----------------------------------------------------------------------
[14229]	1257	#if ! defined key_mpi_off
[10425]	1258	!
	1259	ll_lbc = .FALSE.
	1260	IF( PRESENT(ld_lbc) ) ll_lbc = ld_lbc
	1261	ll_glb = .FALSE.
	1262	IF( PRESENT(ld_glb) ) ll_glb = ld_glb
[10437]	1263	ll_dlg = .FALSE.
	1264	IF( PRESENT(ld_dlg) ) ll_dlg = ld_dlg
[10425]	1265	!
	1266	! find the smallest common frequency: default = frequency product, if multiple, choose the larger of the 2 frequency
	1267	ncom_freq = ncom_fsbc
	1268	!
	1269	IF ( ncom_stp == nit000+ncom_freq ) THEN ! avoid to count extra communications in potential initializations at nit000
	1270	IF( ll_lbc ) THEN
	1271	IF( .NOT. ALLOCATED(ncomm_sequence) ) ALLOCATE( ncomm_sequence(ncom_rec_max,2) )
	1272	IF( .NOT. ALLOCATED( crname_lbc) ) ALLOCATE( crname_lbc(ncom_rec_max ) )
	1273	n_sequence_lbc = n_sequence_lbc + 1
	1274	IF( n_sequence_lbc > ncom_rec_max ) CALL ctl_stop( 'STOP', 'lib_mpp, increase ncom_rec_max' ) ! deadlock
	1275	crname_lbc(n_sequence_lbc) = cdname ! keep the name of the calling routine
	1276	ncomm_sequence(n_sequence_lbc,1) = kpk*kpl ! size of 3rd and 4th dimensions
	1277	ncomm_sequence(n_sequence_lbc,2) = kpf ! number of arrays to be treated (multi)
	1278	ENDIF
	1279	IF( ll_glb ) THEN
	1280	IF( .NOT. ALLOCATED(crname_glb) ) ALLOCATE( crname_glb(ncom_rec_max) )
	1281	n_sequence_glb = n_sequence_glb + 1
	1282	IF( n_sequence_glb > ncom_rec_max ) CALL ctl_stop( 'STOP', 'lib_mpp, increase ncom_rec_max' ) ! deadlock
	1283	crname_glb(n_sequence_glb) = cdname ! keep the name of the calling routine
	1284	ENDIF
[10437]	1285	IF( ll_dlg ) THEN
	1286	IF( .NOT. ALLOCATED(crname_dlg) ) ALLOCATE( crname_dlg(ncom_rec_max) )
	1287	n_sequence_dlg = n_sequence_dlg + 1
	1288	IF( n_sequence_dlg > ncom_rec_max ) CALL ctl_stop( 'STOP', 'lib_mpp, increase ncom_rec_max' ) ! deadlock
	1289	crname_dlg(n_sequence_dlg) = cdname ! keep the name of the calling routine
	1290	ENDIF
[10425]	1291	ELSE IF ( ncom_stp == nit000+2*ncom_freq ) THEN
	1292	CALL ctl_opn( numcom, 'communication_report.txt', 'REPLACE', 'FORMATTED', 'SEQUENTIAL', -1, numout, .FALSE., narea )
	1293	WRITE(numcom,*) ' '
	1294	WRITE(numcom,*) ' ------------------------------------------------------------'
	1295	WRITE(numcom,*) ' Communication pattern report (second oce+sbc+top time step):'
	1296	WRITE(numcom,*) ' ------------------------------------------------------------'
	1297	WRITE(numcom,*) ' '
	1298	WRITE(numcom,'(A,I4)') ' Exchanged halos : ', n_sequence_lbc
	1299	jj = 0; jk = 0; jf = 0; jh = 0
	1300	DO ji = 1, n_sequence_lbc
	1301	IF ( ncomm_sequence(ji,1) .GT. 1 ) jk = jk + 1
	1302	IF ( ncomm_sequence(ji,2) .GT. 1 ) jf = jf + 1
	1303	IF ( ncomm_sequence(ji,1) .GT. 1 .AND. ncomm_sequence(ji,2) .GT. 1 ) jj = jj + 1
	1304	jh = MAX (jh, ncomm_sequence(ji,1)*ncomm_sequence(ji,2))
	1305	END DO
	1306	WRITE(numcom,'(A,I3)') ' 3D Exchanged halos : ', jk
	1307	WRITE(numcom,'(A,I3)') ' Multi arrays exchanged halos : ', jf
	1308	WRITE(numcom,'(A,I3)') ' from which 3D : ', jj
	1309	WRITE(numcom,'(A,I10)') ' Array max size : ', jhjpijpj
	1310	WRITE(numcom,*) ' '
	1311	WRITE(numcom,*) ' lbc_lnk called'
[10982]	1312	DO ji = 1, n_sequence_lbc - 1
	1313	IF ( crname_lbc(ji) /= 'already counted' ) THEN
	1314	ccountname = crname_lbc(ji)
	1315	crname_lbc(ji) = 'already counted'
	1316	jcount = 1
	1317	DO jj = ji + 1, n_sequence_lbc
	1318	IF ( ccountname == crname_lbc(jj) ) THEN
	1319	jcount = jcount + 1
	1320	crname_lbc(jj) = 'already counted'
	1321	END IF
	1322	END DO
	1323	WRITE(numcom,'(A, I4, A, A)') ' - ', jcount,' times by subroutine ', TRIM(ccountname)
[10425]	1324	END IF
	1325	END DO
[10982]	1326	IF ( crname_lbc(n_sequence_lbc) /= 'already counted' ) THEN
	1327	WRITE(numcom,'(A, I4, A, A)') ' - ', 1,' times by subroutine ', TRIM(crname_lbc(ncom_rec_max))
	1328	END IF
[10425]	1329	WRITE(numcom,*) ' '
	1330	IF ( n_sequence_glb > 0 ) THEN
	1331	WRITE(numcom,'(A,I4)') ' Global communications : ', n_sequence_glb
	1332	jj = 1
	1333	DO ji = 2, n_sequence_glb
	1334	IF( crname_glb(ji-1) /= crname_glb(ji) ) THEN
	1335	WRITE(numcom,'(A, I4, A, A)') ' - ', jj,' times by subroutine ', TRIM(crname_glb(ji-1))
	1336	jj = 0
	1337	END IF
[14072]	1338	jj = jj + 1
[10425]	1339	END DO
	1340	WRITE(numcom,'(A, I4, A, A)') ' - ', jj,' times by subroutine ', TRIM(crname_glb(n_sequence_glb))
	1341	DEALLOCATE(crname_glb)
	1342	ELSE
	1343	WRITE(numcom,*) ' No MPI global communication '
	1344	ENDIF
	1345	WRITE(numcom,*) ' '
[10437]	1346	IF ( n_sequence_dlg > 0 ) THEN
	1347	WRITE(numcom,'(A,I4)') ' Delayed global communications : ', n_sequence_dlg
	1348	jj = 1
	1349	DO ji = 2, n_sequence_dlg
	1350	IF( crname_dlg(ji-1) /= crname_dlg(ji) ) THEN
	1351	WRITE(numcom,'(A, I4, A, A)') ' - ', jj,' times by subroutine ', TRIM(crname_dlg(ji-1))
	1352	jj = 0
	1353	END IF
[14072]	1354	jj = jj + 1
[10437]	1355	END DO
	1356	WRITE(numcom,'(A, I4, A, A)') ' - ', jj,' times by subroutine ', TRIM(crname_dlg(n_sequence_dlg))
	1357	DEALLOCATE(crname_dlg)
	1358	ELSE
	1359	WRITE(numcom,*) ' No MPI delayed global communication '
	1360	ENDIF
	1361	WRITE(numcom,*) ' '
[10425]	1362	WRITE(numcom,*) ' -----------------------------------------------'
	1363	WRITE(numcom,*) ' '
	1364	DEALLOCATE(ncomm_sequence)
	1365	DEALLOCATE(crname_lbc)
	1366	ENDIF
[11536]	1367	#endif
[10425]	1368	END SUBROUTINE mpp_report
	1369
[14072]	1370
[10425]	1371	SUBROUTINE tic_tac (ld_tic, ld_global)
	1372
	1373	LOGICAL, INTENT(IN) :: ld_tic
	1374	LOGICAL, OPTIONAL, INTENT(IN) :: ld_global
[13226]	1375	REAL(dp), DIMENSION(2), SAVE :: tic_wt
	1376	REAL(dp), SAVE :: tic_ct = 0._dp
[10425]	1377	INTEGER :: ii
[14229]	1378	#if ! defined key_mpi_off
[10425]	1379
	1380	IF( ncom_stp <= nit000 ) RETURN
	1381	IF( ncom_stp == nitend ) RETURN
	1382	ii = 1
	1383	IF( PRESENT( ld_global ) ) THEN
	1384	IF( ld_global ) ii = 2
	1385	END IF
[14072]	1386
[10425]	1387	IF ( ld_tic ) THEN
	1388	tic_wt(ii) = MPI_Wtime() ! start count tic->tac (waiting time)
[13226]	1389	IF ( tic_ct > 0.0_dp ) compute_time = compute_time + MPI_Wtime() - tic_ct ! cumulate count tac->tic
[10425]	1390	ELSE
	1391	waiting_time(ii) = waiting_time(ii) + MPI_Wtime() - tic_wt(ii) ! cumulate count tic->tac
	1392	tic_ct = MPI_Wtime() ! start count tac->tic (waiting time)
	1393	ENDIF
[11536]	1394	#endif
[14072]	1395
[10425]	1396	END SUBROUTINE tic_tac
	1397
[14229]	1398	#if defined key_mpi_off
[11536]	1399	SUBROUTINE mpi_wait(request, status, ierror)
	1400	INTEGER , INTENT(in ) :: request
	1401	INTEGER, DIMENSION(MPI_STATUS_SIZE), INTENT( out) :: status
	1402	INTEGER , INTENT( out) :: ierror
	1403	END SUBROUTINE mpi_wait
[1976]	1404
[14072]	1405
[11536]	1406	FUNCTION MPI_Wtime()
	1407	REAL(wp) :: MPI_Wtime
	1408	MPI_Wtime = -1.
	1409	END FUNCTION MPI_Wtime
[3]	1410	#endif
[2715]	1411
[13]	1412	!!----------------------------------------------------------------------
[12377]	1413	!! ctl_stop, ctl_warn, get_unit, ctl_opn, ctl_nam, load_nml routines
[2715]	1414	!!----------------------------------------------------------------------
	1415
	1416	SUBROUTINE ctl_stop( cd1, cd2, cd3, cd4, cd5 , &
	1417	& cd6, cd7, cd8, cd9, cd10 )
	1418	!!----------------------------------------------------------------------
	1419	!! * ROUTINE stop_opa *
	1420	!!
[3764]	1421	!! ** Purpose : print in ocean.outpput file a error message and
[2715]	1422	!! increment the error number (nstop) by one.
	1423	!!----------------------------------------------------------------------
[11536]	1424	CHARACTER(len=*), INTENT(in ) :: cd1
	1425	CHARACTER(len=*), INTENT(in ), OPTIONAL :: cd2, cd3, cd4, cd5
	1426	CHARACTER(len=*), INTENT(in ), OPTIONAL :: cd6, cd7, cd8, cd9, cd10
[12933]	1427	!
	1428	CHARACTER(LEN=8) :: clfmt ! writing format
[13011]	1429	INTEGER :: inum
[2715]	1430	!!----------------------------------------------------------------------
	1431	!
[3764]	1432	nstop = nstop + 1
[11536]	1433	!
[13011]	1434	IF( cd1 == 'STOP' .AND. narea /= 1 ) THEN ! Immediate stop: add an arror message in 'ocean.output' file
	1435	CALL ctl_opn( inum, 'ocean.output', 'APPEND', 'FORMATTED', 'SEQUENTIAL', -1, 6, .FALSE. )
	1436	WRITE(inum,*)
	1437	WRITE(inum,) ' ==>>> Look for "E R R O R" messages in all existing ocean.output* files'
	1438	CLOSE(inum)
[12933]	1439	ENDIF
[13011]	1440	IF( numout == 6 ) THEN ! force to open ocean.output file if not already opened
	1441	CALL ctl_opn( numout, 'ocean.output', 'REPLACE', 'FORMATTED', 'SEQUENTIAL', -1, -1, .FALSE., narea )
	1442	ENDIF
[11536]	1443	!
	1444	WRITE(numout,*)
	1445	WRITE(numout,*) ' ===>>> : E R R O R'
	1446	WRITE(numout,*)
	1447	WRITE(numout,*) ' ==========='
	1448	WRITE(numout,*)
	1449	WRITE(numout,*) TRIM(cd1)
[10425]	1450	IF( PRESENT(cd2 ) ) WRITE(numout,*) TRIM(cd2)
	1451	IF( PRESENT(cd3 ) ) WRITE(numout,*) TRIM(cd3)
	1452	IF( PRESENT(cd4 ) ) WRITE(numout,*) TRIM(cd4)
	1453	IF( PRESENT(cd5 ) ) WRITE(numout,*) TRIM(cd5)
	1454	IF( PRESENT(cd6 ) ) WRITE(numout,*) TRIM(cd6)
	1455	IF( PRESENT(cd7 ) ) WRITE(numout,*) TRIM(cd7)
	1456	IF( PRESENT(cd8 ) ) WRITE(numout,*) TRIM(cd8)
	1457	IF( PRESENT(cd9 ) ) WRITE(numout,*) TRIM(cd9)
	1458	IF( PRESENT(cd10) ) WRITE(numout,*) TRIM(cd10)
[11536]	1459	WRITE(numout,*)
	1460	!
[2715]	1461	CALL FLUSH(numout )
	1462	IF( numstp /= -1 ) CALL FLUSH(numstp )
[9019]	1463	IF( numrun /= -1 ) CALL FLUSH(numrun )
[2715]	1464	IF( numevo_ice /= -1 ) CALL FLUSH(numevo_ice)
	1465	!
	1466	IF( cd1 == 'STOP' ) THEN
[14072]	1467	WRITE(numout,*)
[10425]	1468	WRITE(numout,*) 'huge E-R-R-O-R : immediate stop'
[14072]	1469	WRITE(numout,*)
[12933]	1470	CALL FLUSH(numout)
	1471	CALL SLEEP(60) ! make sure that all output and abort files are written by all cores. 60s should be enough...
[11536]	1472	CALL mppstop( ld_abort = .true. )
[2715]	1473	ENDIF
	1474	!
	1475	END SUBROUTINE ctl_stop
	1476
	1477
	1478	SUBROUTINE ctl_warn( cd1, cd2, cd3, cd4, cd5, &
	1479	& cd6, cd7, cd8, cd9, cd10 )
	1480	!!----------------------------------------------------------------------
	1481	!! * ROUTINE stop_warn *
	1482	!!
[3764]	1483	!! ** Purpose : print in ocean.outpput file a error message and
[2715]	1484	!! increment the warning number (nwarn) by one.
	1485	!!----------------------------------------------------------------------
	1486	CHARACTER(len=*), INTENT(in), OPTIONAL :: cd1, cd2, cd3, cd4, cd5
	1487	CHARACTER(len=*), INTENT(in), OPTIONAL :: cd6, cd7, cd8, cd9, cd10
	1488	!!----------------------------------------------------------------------
[3764]	1489	!
	1490	nwarn = nwarn + 1
[11536]	1491	!
[2715]	1492	IF(lwp) THEN
[11536]	1493	WRITE(numout,*)
	1494	WRITE(numout,*) ' ===>>> : W A R N I N G'
	1495	WRITE(numout,*)
	1496	WRITE(numout,*) ' ==============='
	1497	WRITE(numout,*)
	1498	IF( PRESENT(cd1 ) ) WRITE(numout,*) TRIM(cd1)
	1499	IF( PRESENT(cd2 ) ) WRITE(numout,*) TRIM(cd2)
	1500	IF( PRESENT(cd3 ) ) WRITE(numout,*) TRIM(cd3)
	1501	IF( PRESENT(cd4 ) ) WRITE(numout,*) TRIM(cd4)
	1502	IF( PRESENT(cd5 ) ) WRITE(numout,*) TRIM(cd5)
	1503	IF( PRESENT(cd6 ) ) WRITE(numout,*) TRIM(cd6)
	1504	IF( PRESENT(cd7 ) ) WRITE(numout,*) TRIM(cd7)
	1505	IF( PRESENT(cd8 ) ) WRITE(numout,*) TRIM(cd8)
	1506	IF( PRESENT(cd9 ) ) WRITE(numout,*) TRIM(cd9)
	1507	IF( PRESENT(cd10) ) WRITE(numout,*) TRIM(cd10)
	1508	WRITE(numout,*)
[2715]	1509	ENDIF
	1510	CALL FLUSH(numout)
	1511	!
	1512	END SUBROUTINE ctl_warn
	1513
	1514
	1515	SUBROUTINE ctl_opn( knum, cdfile, cdstat, cdform, cdacce, klengh, kout, ldwp, karea )
	1516	!!----------------------------------------------------------------------
	1517	!! * ROUTINE ctl_opn *
	1518	!!
	1519	!! ** Purpose : Open file and check if required file is available.
	1520	!!
	1521	!! ** Method : Fortan open
	1522	!!----------------------------------------------------------------------
	1523	INTEGER , INTENT( out) :: knum ! logical unit to open
	1524	CHARACTER(len=*) , INTENT(in ) :: cdfile ! file name to open
	1525	CHARACTER(len=*) , INTENT(in ) :: cdstat ! disposition specifier
	1526	CHARACTER(len=*) , INTENT(in ) :: cdform ! formatting specifier
	1527	CHARACTER(len=*) , INTENT(in ) :: cdacce ! access specifier
	1528	INTEGER , INTENT(in ) :: klengh ! record length
	1529	INTEGER , INTENT(in ) :: kout ! number of logical units for write
	1530	LOGICAL , INTENT(in ) :: ldwp ! boolean term for print
	1531	INTEGER, OPTIONAL, INTENT(in ) :: karea ! proc number
[5836]	1532	!
[2715]	1533	CHARACTER(len=80) :: clfile
[12933]	1534	CHARACTER(LEN=10) :: clfmt ! writing format
[2715]	1535	INTEGER :: iost
[13062]	1536	INTEGER :: idg ! number of digits
[2715]	1537	!!----------------------------------------------------------------------
[5836]	1538	!
[2715]	1539	! adapt filename
	1540	! ----------------
	1541	clfile = TRIM(cdfile)
	1542	IF( PRESENT( karea ) ) THEN
[12933]	1543	IF( karea > 1 ) THEN
[13009]	1544	! Warning: jpnij is maybe not already defined when calling ctl_opn -> use mppsize instead of jpnij
	1545	idg = MAX( INT(LOG10(REAL(MAX(1,mppsize-1),wp))) + 1, 4 ) ! how many digits to we need to write? min=4, max=9
	1546	WRITE(clfmt, "('(a,a,i', i1, '.', i1, ')')") idg, idg ! '(a,a,ix.x)'
[12933]	1547	WRITE(clfile, clfmt) TRIM(clfile), '_', karea-1
	1548	ENDIF
[2715]	1549	ENDIF
	1550	#if defined key_agrif
	1551	IF( .NOT. Agrif_Root() ) clfile = TRIM(Agrif_CFixed())//'_'//TRIM(clfile)
	1552	knum=Agrif_Get_Unit()
	1553	#else
	1554	knum=get_unit()
	1555	#endif
[10425]	1556	IF( TRIM(cdfile) == '/dev/null' ) clfile = TRIM(cdfile) ! force the use of /dev/null
[5836]	1557	!
[11536]	1558	IF( cdacce(1:6) == 'DIRECT' ) THEN ! cdacce has always more than 6 characters
[10425]	1559	OPEN( UNIT=knum, FILE=clfile, FORM=cdform, ACCESS=cdacce, STATUS=cdstat, RECL=klengh , ERR=100, IOSTAT=iost )
	1560	ELSE IF( TRIM(cdstat) == 'APPEND' ) THEN ! cdstat can have less than 6 characters
	1561	OPEN( UNIT=knum, FILE=clfile, FORM=cdform, ACCESS=cdacce, STATUS='UNKNOWN', POSITION='APPEND', ERR=100, IOSTAT=iost )
[2715]	1562	ELSE
[10425]	1563	OPEN( UNIT=knum, FILE=clfile, FORM=cdform, ACCESS=cdacce, STATUS=cdstat , ERR=100, IOSTAT=iost )
[2715]	1564	ENDIF
[10425]	1565	IF( iost /= 0 .AND. TRIM(clfile) == '/dev/null' ) & ! for windows
[14072]	1566	& OPEN(UNIT=knum,FILE='NUL', FORM=cdform, ACCESS=cdacce, STATUS=cdstat , ERR=100, IOSTAT=iost )
[2715]	1567	IF( iost == 0 ) THEN
[12377]	1568	IF(ldwp .AND. kout > 0) THEN
[10425]	1569	WRITE(kout,*) ' file : ', TRIM(clfile),' open ok'
[2715]	1570	WRITE(kout,*) ' unit = ', knum
	1571	WRITE(kout,*) ' status = ', cdstat
	1572	WRITE(kout,*) ' form = ', cdform
	1573	WRITE(kout,*) ' access = ', cdacce
	1574	WRITE(kout,*)
	1575	ENDIF
	1576	ENDIF
	1577	100 CONTINUE
	1578	IF( iost /= 0 ) THEN
[11536]	1579	WRITE(ctmp1,*) ' ===>>>> : bad opening file: ', TRIM(clfile)
	1580	WRITE(ctmp2,*) ' ======= === '
	1581	WRITE(ctmp3,*) ' unit = ', knum
	1582	WRITE(ctmp4,*) ' status = ', cdstat
	1583	WRITE(ctmp5,*) ' form = ', cdform
	1584	WRITE(ctmp6,*) ' access = ', cdacce
	1585	WRITE(ctmp7,*) ' iostat = ', iost
	1586	WRITE(ctmp8,*) ' we stop. verify the file '
	1587	CALL ctl_stop( 'STOP', ctmp1, ctmp2, ctmp3, ctmp4, ctmp5, ctmp6, ctmp7, ctmp8 )
[2715]	1588	ENDIF
[5836]	1589	!
[2715]	1590	END SUBROUTINE ctl_opn
	1591
[5836]	1592
[11536]	1593	SUBROUTINE ctl_nam ( kios, cdnam )
[4147]	1594	!!----------------------------------------------------------------------
	1595	!! * ROUTINE ctl_nam *
	1596	!!
	1597	!! ** Purpose : Informations when error while reading a namelist
	1598	!!
	1599	!! ** Method : Fortan open
	1600	!!----------------------------------------------------------------------
[11536]	1601	INTEGER , INTENT(inout) :: kios ! IO status after reading the namelist
	1602	CHARACTER(len=*) , INTENT(in ) :: cdnam ! group name of namelist for which error occurs
	1603	!
	1604	CHARACTER(len=5) :: clios ! string to convert iostat in character for print
[4147]	1605	!!----------------------------------------------------------------------
[5836]	1606	!
[7646]	1607	WRITE (clios, '(I5.0)') kios
[14072]	1608	IF( kios < 0 ) THEN
[5836]	1609	CALL ctl_warn( 'end of record or file while reading namelist ' &
	1610	& // TRIM(cdnam) // ' iostat = ' // TRIM(clios) )
[4147]	1611	ENDIF
[5836]	1612	!
[4147]	1613	IF( kios > 0 ) THEN
[5836]	1614	CALL ctl_stop( 'misspelled variable in namelist ' &
	1615	& // TRIM(cdnam) // ' iostat = ' // TRIM(clios) )
[4147]	1616	ENDIF
	1617	kios = 0
[5836]	1618	!
[4147]	1619	END SUBROUTINE ctl_nam
	1620
[5836]	1621
[2715]	1622	INTEGER FUNCTION get_unit()
	1623	!!----------------------------------------------------------------------
	1624	!! * FUNCTION get_unit *
	1625	!!
	1626	!! ** Purpose : return the index of an unused logical unit
	1627	!!----------------------------------------------------------------------
[3764]	1628	LOGICAL :: llopn
[2715]	1629	!!----------------------------------------------------------------------
	1630	!
	1631	get_unit = 15 ! choose a unit that is big enough then it is not already used in NEMO
	1632	llopn = .TRUE.
	1633	DO WHILE( (get_unit < 998) .AND. llopn )
	1634	get_unit = get_unit + 1
	1635	INQUIRE( unit = get_unit, opened = llopn )
	1636	END DO
	1637	IF( (get_unit == 999) .AND. llopn ) THEN
[11536]	1638	CALL ctl_stop( 'STOP', 'get_unit: All logical units until 999 are used...' )
[2715]	1639	ENDIF
	1640	!
	1641	END FUNCTION get_unit
	1642
[12377]	1643	SUBROUTINE load_nml( cdnambuff , cdnamfile, kout, ldwp)
	1644	CHARACTER(LEN=:) , ALLOCATABLE, INTENT(INOUT) :: cdnambuff
	1645	CHARACTER(LEN=*), INTENT(IN ) :: cdnamfile
	1646	CHARACTER(LEN=256) :: chline
	1647	CHARACTER(LEN=1) :: csp
	1648	INTEGER, INTENT(IN) :: kout
	1649	LOGICAL, INTENT(IN) :: ldwp !: .true. only for the root broadcaster
	1650	INTEGER :: itot, iun, iltc, inl, ios, itotsav
	1651	!
	1652	!csp = NEW_LINE('A')
	1653	! a new line character is the best seperator but some systems (e.g.Cray)
[14072]	1654	! seem to terminate namelist reads from internal files early if they
[12377]	1655	! encounter new-lines. Use a single space for safety.
	1656	csp = ' '
	1657	!
	1658	! Check if the namelist buffer has already been allocated. Return if it has.
	1659	!
	1660	IF ( ALLOCATED( cdnambuff ) ) RETURN
	1661	IF( ldwp ) THEN
	1662	!
	1663	! Open namelist file
	1664	!
	1665	CALL ctl_opn( iun, cdnamfile, 'OLD', 'FORMATTED', 'SEQUENTIAL', -1, kout, ldwp )
	1666	!
	1667	! First pass: count characters excluding comments and trimable white space
	1668	!
	1669	itot=0
	1670	10 READ(iun,'(A256)',END=20,ERR=20) chline
	1671	iltc = LEN_TRIM(chline)
	1672	IF ( iltc.GT.0 ) THEN
[14072]	1673	inl = INDEX(chline, '!')
[12377]	1674	IF( inl.eq.0 ) THEN
	1675	itot = itot + iltc + 1 ! +1 for the newline character
	1676	ELSEIF( inl.GT.0 .AND. LEN_TRIM( chline(1:inl-1) ).GT.0 ) THEN
	1677	itot = itot + inl ! includes +1 for the newline character
	1678	ENDIF
	1679	ENDIF
	1680	GOTO 10
	1681	20 CONTINUE
	1682	!
	1683	! Allocate text cdnambuff for condensed namelist
	1684	!
	1685	!$AGRIF_DO_NOT_TREAT
	1686	ALLOCATE( CHARACTER(LEN=itot) :: cdnambuff )
	1687	!$AGRIF_END_DO_NOT_TREAT
	1688	itotsav = itot
	1689	!
	1690	! Second pass: read and transfer pruned characters into cdnambuff
	1691	!
	1692	REWIND(iun)
	1693	itot=1
	1694	30 READ(iun,'(A256)',END=40,ERR=40) chline
	1695	iltc = LEN_TRIM(chline)
	1696	IF ( iltc.GT.0 ) THEN
	1697	inl = INDEX(chline, '!')
	1698	IF( inl.eq.0 ) THEN
	1699	inl = iltc
	1700	ELSE
	1701	inl = inl - 1
	1702	ENDIF
	1703	IF( inl.GT.0 .AND. LEN_TRIM( chline(1:inl) ).GT.0 ) THEN
	1704	cdnambuff(itot:itot+inl-1) = chline(1:inl)
	1705	WRITE( cdnambuff(itot+inl:itot+inl), '(a)' ) csp
	1706	itot = itot + inl + 1
	1707	ENDIF
	1708	ENDIF
	1709	GOTO 30
	1710	40 CONTINUE
	1711	itot = itot - 1
	1712	IF( itotsav .NE. itot ) WRITE(,) 'WARNING in load_nml. Allocated ',itotsav,' for read buffer; but used ',itot
	1713	!
	1714	! Close namelist file
	1715	!
	1716	CLOSE(iun)
	1717	!write(*,'(32A)') cdnambuff
	1718	ENDIF
[14229]	1719	#if ! defined key_mpi_off
[12377]	1720	CALL mpp_bcast_nml( cdnambuff, itot )
	1721	#endif
	1722	END SUBROUTINE load_nml
	1723
	1724
[2715]	1725	!!----------------------------------------------------------------------
[3]	1726	END MODULE lib_mpp

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