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MODULE lib_mpp
!!======================================================================
!! *** MODULE lib_mpp ***
!! Ocean numerics: massively parallel processing library
!!=====================================================================
!! History : OPA ! 1994 (M. Guyon, J. Escobar, M. Imbard) Original code
!! 7.0 ! 1997 (A.M. Treguier) SHMEM additions
!! 8.0 ! 1998 (M. Imbard, J. Escobar, L. Colombet ) SHMEM and MPI
!! ! 1998 (J.M. Molines) Open boundary conditions
!! NEMO 1.0 ! 2003 (J.M. Molines, G. Madec) F90, free form
!! ! 2003 (J.M. Molines) add mpp_ini_north(_3d,_2d)
!! - ! 2004 (R. Bourdalle Badie) isend option in mpi
!! ! 2004 (J.M. Molines) minloc, maxloc
!! - ! 2005 (G. Madec, S. Masson) npolj=5,6 F-point & ice cases
!! - ! 2005 (R. Redler) Replacement of MPI_COMM_WORLD except for MPI_Abort
!! - ! 2005 (R. Benshila, G. Madec) add extra halo case
!! - ! 2008 (R. Benshila) add mpp_ini_ice
!! 3.2 ! 2009 (R. Benshila) SHMEM suppression, north fold in lbc_nfd
!! 3.2 ! 2009 (O. Marti) add mpp_ini_znl
!! 4.0 ! 2011 (G. Madec) move ctl_ routines from in_out_manager
!! 3.5 ! 2012 (S.Mocavero, I. Epicoco) Add mpp_lnk_bdy_3d/2d routines to optimize the BDY comm.
!! 3.5 ! 2013 (C. Ethe, G. Madec) message passing arrays as local variables
!! 3.5 ! 2013 (S.Mocavero, I.Epicoco - CMCC) north fold optimizations
!! 3.6 ! 2015 (O. Tintó and M. Castrillo - BSC) Added '_multiple' case for 2D lbc and max
!! 4.0 ! 2017 (G. Madec) automatique allocation of array argument (use any 3rd dimension)
!! - ! 2017 (G. Madec) create generic.h90 files to generate all lbc and north fold routines
!!----------------------------------------------------------------------
!!----------------------------------------------------------------------
!! ctl_stop : update momentum and tracer Kz from a tke scheme
!! ctl_warn : initialization, namelist read, and parameters control
!! ctl_opn : Open file and check if required file is available.
!! ctl_nam : Prints informations when an error occurs while reading a namelist
!! load_nml : Read, condense and buffer namelist file into character array for use as an internal file
!!----------------------------------------------------------------------
!!----------------------------------------------------------------------
!! mpp_start : get local communicator its size and rank
!! mpp_lnk : interface (defined in lbclnk) for message passing of 2d or 3d arrays (mpp_lnk_2d, mpp_lnk_3d)
!! mpp_lnk_icb : interface for message passing of 2d arrays with extra halo for icebergs (mpp_lnk_2d_icb)
!! mpprecv :
!! mppsend :
!! mppscatter :
!! mppgather :
!! mpp_min : generic interface for mppmin_int , mppmin_a_int , mppmin_real, mppmin_a_real
!! mpp_max : generic interface for mppmax_int , mppmax_a_int , mppmax_real, mppmax_a_real
!! mpp_sum : generic interface for mppsum_int , mppsum_a_int , mppsum_real, mppsum_a_real
!! mpp_minloc :
!! mpp_maxloc :
!! mppsync :
!! mppstop :
!! mpp_ini_northgather : initialisation of north fold with gathering of the communications
!! mpp_lbc_north_icb : alternative to mpp_nfd for extra outer halo with icebergs
!! mpp_bcast_nml : broadcast/receive namelist character buffer from reading process to all others
!!----------------------------------------------------------------------
USE dom_oce ! ocean space and time domain
USE in_out_manager ! I/O manager
#if ! defined key_mpi_off
USE MPI
#endif
IMPLICIT NONE
PRIVATE
!
PUBLIC ctl_stop, ctl_warn, ctl_opn, ctl_nam, load_nml
PUBLIC mpp_start, mppstop, mppsync, mpp_comm_free
PUBLIC mpp_ini_northgather
PUBLIC mpp_min, mpp_max, mpp_sum, mpp_minloc, mpp_maxloc
PUBLIC mpp_delay_max, mpp_delay_sum, mpp_delay_rcv
PUBLIC mppscatter, mppgather
PUBLIC mpp_ini_znl
PUBLIC mpp_ini_nc
PUBLIC mppsend, mpprecv ! needed by TAM and ICB routines
PUBLIC mppsend_sp, mpprecv_sp ! needed by TAM and ICB routines
PUBLIC mppsend_dp, mpprecv_dp ! needed by TAM and ICB routines
PUBLIC mpp_report
PUBLIC mpp_bcast_nml
PUBLIC tic_tac
#if defined key_mpi_off
PUBLIC MPI_wait
PUBLIC MPI_waitall
PUBLIC MPI_Wtime
#endif
!! * Interfaces
!! define generic interface for these routine as they are called sometimes
!! with scalar arguments instead of array arguments, which causes problems
!! for the compilation on AIX system as well as NEC and SGI. Ok on COMPACQ
INTERFACE mpp_min
MODULE PROCEDURE mppmin_a_int, mppmin_int
MODULE PROCEDURE mppmin_a_real_sp, mppmin_real_sp
MODULE PROCEDURE mppmin_a_real_dp, mppmin_real_dp
END INTERFACE
INTERFACE mpp_max
MODULE PROCEDURE mppmax_a_int, mppmax_int
MODULE PROCEDURE mppmax_a_real_sp, mppmax_real_sp
MODULE PROCEDURE mppmax_a_real_dp, mppmax_real_dp
END INTERFACE
INTERFACE mpp_sum
MODULE PROCEDURE mppsum_a_int, mppsum_int
MODULE PROCEDURE mppsum_realdd, mppsum_a_realdd
MODULE PROCEDURE mppsum_a_real_sp, mppsum_real_sp
MODULE PROCEDURE mppsum_a_real_dp, mppsum_real_dp
END INTERFACE
INTERFACE mpp_minloc
MODULE PROCEDURE mpp_minloc2d_sp ,mpp_minloc3d_sp
MODULE PROCEDURE mpp_minloc2d_dp ,mpp_minloc3d_dp
END INTERFACE
INTERFACE mpp_maxloc
MODULE PROCEDURE mpp_maxloc2d_sp ,mpp_maxloc3d_sp
MODULE PROCEDURE mpp_maxloc2d_dp ,mpp_maxloc3d_dp
END INTERFACE
TYPE, PUBLIC :: PTR_4D_sp !: array of 4D pointers (used in lbclnk and lbcnfd)
REAL(sp), DIMENSION (:,:,:,:), POINTER :: pt4d
END TYPE PTR_4D_sp
TYPE, PUBLIC :: PTR_4D_dp !: array of 4D pointers (used in lbclnk and lbcnfd)
REAL(dp), DIMENSION (:,:,:,:), POINTER :: pt4d
END TYPE PTR_4D_dp
!! ========================= !!
!! MPI variable definition !!
!! ========================= !!
#if ! defined key_mpi_off
LOGICAL, PUBLIC, PARAMETER :: lk_mpp = .TRUE. !: mpp flag
#else
INTEGER, PUBLIC, PARAMETER :: MPI_STATUS_SIZE = 1
INTEGER, PUBLIC, PARAMETER :: MPI_REAL = 4
INTEGER, PUBLIC, PARAMETER :: MPI_DOUBLE_PRECISION = 8
INTEGER, PUBLIC, PARAMETER :: MPI_REQUEST_NULL = 1
LOGICAL, PUBLIC, PARAMETER :: lk_mpp = .FALSE. !: mpp flag
INTEGER, PUBLIC, DIMENSION(MPI_STATUS_SIZE) :: MPI_STATUS_IGNORE = 1 ! out from mpi_wait
INTEGER, PUBLIC, DIMENSION(MPI_STATUS_SIZE) :: MPI_STATUSES_IGNORE = 1 ! out from mpi_waitall
#endif
INTEGER, PUBLIC :: mppsize ! number of process
INTEGER, PUBLIC :: mpprank ! process number [ 0 - size-1 ]
!$AGRIF_DO_NOT_TREAT
INTEGER, PUBLIC :: mpi_comm_oce ! opa local communicator
!$AGRIF_END_DO_NOT_TREAT
INTEGER :: MPI_SUMDD
! Neighbourgs informations
INTEGER, PARAMETER, PUBLIC :: n_hlsmax = 3
INTEGER, DIMENSION( 8), PUBLIC :: mpinei !: 8-neighbourg MPI indexes (starting at 0, -1 if no neighbourg)
INTEGER, DIMENSION(n_hlsmax,8), PUBLIC :: mpiSnei !: 8-neighbourg Send MPI indexes (starting at 0, -1 if no neighbourg)
INTEGER, DIMENSION(n_hlsmax,8), PUBLIC :: mpiRnei !: 8-neighbourg Recv MPI indexes (starting at 0, -1 if no neighbourg)
INTEGER, PARAMETER, PUBLIC :: jpwe = 1 !: WEst
INTEGER, PARAMETER, PUBLIC :: jpea = 2 !: EAst
INTEGER, PARAMETER, PUBLIC :: jpso = 3 !: SOuth
INTEGER, PARAMETER, PUBLIC :: jpno = 4 !: NOrth
INTEGER, PARAMETER, PUBLIC :: jpsw = 5 !: South-West
INTEGER, PARAMETER, PUBLIC :: jpse = 6 !: South-East
INTEGER, PARAMETER, PUBLIC :: jpnw = 7 !: North-West
INTEGER, PARAMETER, PUBLIC :: jpne = 8 !: North-East
LOGICAL, DIMENSION(8), PUBLIC :: l_SelfPerio ! should we explicitely take care of I/J periodicity
LOGICAL, PUBLIC :: l_IdoNFold
! variables used for zonal integration
INTEGER, PUBLIC :: ncomm_znl !: communicator made by the processors on the same zonal average
LOGICAL, PUBLIC :: l_znl_root !: True on the 'left'most processor on the same row
INTEGER :: ngrp_znl !: group ID for the znl processors
INTEGER :: ndim_rank_znl !: number of processors on the same zonal average
INTEGER, DIMENSION(:), ALLOCATABLE, SAVE :: nrank_znl ! dimension ndim_rank_znl, number of the procs into the same znl domain
! variables used for MPI3 neighbourhood collectives
INTEGER, DIMENSION(n_hlsmax), PUBLIC :: mpi_nc_com4 ! MPI3 neighbourhood collectives communicator
INTEGER, DIMENSION(n_hlsmax), PUBLIC :: mpi_nc_com8 ! MPI3 neighbourhood collectives communicator (with diagionals)
! North fold condition in mpp_mpi with jpni > 1 (PUBLIC for TAM)
INTEGER, PUBLIC :: ngrp_world !: group ID for the world processors
INTEGER, PUBLIC :: ngrp_opa !: group ID for the opa processors
INTEGER, PUBLIC :: ngrp_north !: group ID for the northern processors (to be fold)
INTEGER, PUBLIC :: ncomm_north !: communicator made by the processors belonging to ngrp_north
INTEGER, PUBLIC :: ndim_rank_north !: number of 'sea' processor in the northern line (can be /= jpni !)
INTEGER, PUBLIC :: njmppmax !: value of njmpp for the processors of the northern line
INTEGER, PUBLIC :: north_root !: number (in the comm_opa) of proc 0 in the northern comm
INTEGER, PUBLIC, DIMENSION(:), ALLOCATABLE, SAVE :: nrank_north !: dimension ndim_rank_north
! Communications summary report
CHARACTER(len=lca), DIMENSION(:), ALLOCATABLE :: crname_lbc !: names of lbc_lnk calling routines
CHARACTER(len=lca), DIMENSION(:), ALLOCATABLE :: crname_glb !: names of global comm calling routines
CHARACTER(len=lca), DIMENSION(:), ALLOCATABLE :: crname_dlg !: names of delayed global comm calling routines
INTEGER, PUBLIC :: ncom_stp = 0 !: copy of time step # istp
INTEGER, PUBLIC :: ncom_fsbc = 1 !: copy of sbc time step # nn_fsbc
INTEGER, PUBLIC :: ncom_freq !: frequency of comm diagnostic
INTEGER, PUBLIC , DIMENSION(:,:), ALLOCATABLE :: ncomm_sequence !: size of communicated arrays (halos)
INTEGER, PARAMETER, PUBLIC :: ncom_rec_max = 5000 !: max number of communication record
INTEGER, PUBLIC :: n_sequence_lbc = 0 !: # of communicated arraysvia lbc
INTEGER, PUBLIC :: n_sequence_glb = 0 !: # of global communications
INTEGER, PUBLIC :: n_sequence_dlg = 0 !: # of delayed global communications
INTEGER, PUBLIC :: numcom = -1 !: logical unit for communicaton report
LOGICAL, PUBLIC :: l_full_nf_update = .TRUE. !: logical for a full (2lines) update of bc at North fold report
INTEGER, PARAMETER, PUBLIC :: nbdelay = 2 !: number of delayed operations
!: name (used as id) of allreduce-delayed operations
! Warning: we must use the same character length in an array constructor (at least for gcc compiler)
CHARACTER(len=32), DIMENSION(nbdelay), PUBLIC :: c_delaylist = (/ 'cflice', 'fwb ' /)
!: component name where the allreduce-delayed operation is performed
CHARACTER(len=3), DIMENSION(nbdelay), PUBLIC :: c_delaycpnt = (/ 'ICE' , 'OCE' /)
TYPE, PUBLIC :: DELAYARR
REAL( wp), POINTER, DIMENSION(:) :: z1d => NULL()
COMPLEX(dp), POINTER, DIMENSION(:) :: y1d => NULL()
END TYPE DELAYARR
TYPE( DELAYARR ), DIMENSION(nbdelay), PUBLIC, SAVE :: todelay !: must have SAVE for default initialization of DELAYARR
INTEGER, DIMENSION(nbdelay), PUBLIC :: ndelayid = -1 !: mpi request id of the delayed operations
! timing summary report
REAL(dp), DIMENSION(2), PUBLIC :: waiting_time = 0._dp
REAL(dp) , PUBLIC :: compute_time = 0._dp, elapsed_time = 0._dp
REAL(wp), DIMENSION(:), ALLOCATABLE, SAVE :: tampon ! buffer in case of bsend
LOGICAL, PUBLIC :: ln_nnogather !: namelist control of northfold comms
INTEGER, PUBLIC :: nn_comm !: namelist control of comms
INTEGER, PUBLIC, PARAMETER :: jpfillnothing = 1
INTEGER, PUBLIC, PARAMETER :: jpfillcst = 2
INTEGER, PUBLIC, PARAMETER :: jpfillcopy = 3
INTEGER, PUBLIC, PARAMETER :: jpfillperio = 4
INTEGER, PUBLIC, PARAMETER :: jpfillmpi = 5
!! * Substitutions
# include "do_loop_substitute.h90"
!!----------------------------------------------------------------------
!! NEMO/OCE 4.0 , NEMO Consortium (2018)
!! $Id: lib_mpp.F90 15267 2021-09-17 09:04:34Z smasson $
!! Software governed by the CeCILL license (see ./LICENSE)
!!----------------------------------------------------------------------
CONTAINS
SUBROUTINE mpp_start( localComm )
!!----------------------------------------------------------------------
!! *** routine mpp_start ***
!!
!! ** Purpose : get mpi_comm_oce, mpprank and mppsize
!!----------------------------------------------------------------------
INTEGER , OPTIONAL , INTENT(in ) :: localComm !
!
INTEGER :: ierr
LOGICAL :: llmpi_init
!!----------------------------------------------------------------------
#if ! defined key_mpi_off
!
CALL mpi_initialized ( llmpi_init, ierr )
IF( ierr /= MPI_SUCCESS ) CALL ctl_stop( 'STOP', ' lib_mpp: Error in routine mpi_initialized' )
IF( .NOT. llmpi_init ) THEN
IF( PRESENT(localComm) ) THEN
WRITE(ctmp1,*) ' lib_mpp: You cannot provide a local communicator '
WRITE(ctmp2,*) ' without calling MPI_Init before ! '
CALL ctl_stop( 'STOP', ctmp1, ctmp2 )
ENDIF
CALL mpi_init( ierr )
IF( ierr /= MPI_SUCCESS ) CALL ctl_stop( 'STOP', ' lib_mpp: Error in routine mpi_init' )
ENDIF
IF( PRESENT(localComm) ) THEN
IF( Agrif_Root() ) THEN
mpi_comm_oce = localComm
ENDIF
ELSE
CALL mpi_comm_dup( mpi_comm_world, mpi_comm_oce, ierr)
IF( ierr /= MPI_SUCCESS ) CALL ctl_stop( 'STOP', ' lib_mpp: Error in routine mpi_comm_dup' )
ENDIF
# if defined key_agrif
IF( Agrif_Root() ) THEN
CALL Agrif_MPI_Init(mpi_comm_oce)
ELSE
CALL Agrif_MPI_set_grid_comm(mpi_comm_oce)
ENDIF
# endif
CALL mpi_comm_rank( mpi_comm_oce, mpprank, ierr )
CALL mpi_comm_size( mpi_comm_oce, mppsize, ierr )
!
CALL MPI_OP_CREATE(DDPDD_MPI, .TRUE., MPI_SUMDD, ierr)
!
#else
IF( PRESENT( localComm ) ) mpi_comm_oce = localComm
mppsize = 1
mpprank = 0
#endif
END SUBROUTINE mpp_start
SUBROUTINE mppsend( ktyp, pmess, kbytes, kdest, md_req )
!!----------------------------------------------------------------------
!! *** routine mppsend ***
!!
!! ** Purpose : Send messag passing array
!!
!!----------------------------------------------------------------------
REAL(wp), INTENT(inout) :: pmess(*) ! array of real
INTEGER , INTENT(in ) :: kbytes ! size of the array pmess
INTEGER , INTENT(in ) :: kdest ! receive process number
INTEGER , INTENT(in ) :: ktyp ! tag of the message
INTEGER , INTENT(inout) :: md_req ! argument for isend
!!
INTEGER :: iflag
INTEGER :: mpi_working_type
!!----------------------------------------------------------------------
!
#if ! defined key_mpi_off
IF (wp == dp) THEN
mpi_working_type = mpi_double_precision
ELSE
mpi_working_type = mpi_real
END IF
CALL mpi_isend( pmess, kbytes, mpi_working_type, kdest , ktyp, mpi_comm_oce, md_req, iflag )
#endif
!
END SUBROUTINE mppsend
SUBROUTINE mppsend_dp( ktyp, pmess, kbytes, kdest, md_req )
!!----------------------------------------------------------------------
!! *** routine mppsend ***
!!
!! ** Purpose : Send messag passing array
!!
!!----------------------------------------------------------------------
REAL(dp), INTENT(inout) :: pmess(*) ! array of real
INTEGER , INTENT(in ) :: kbytes ! size of the array pmess
INTEGER , INTENT(in ) :: kdest ! receive process number
INTEGER , INTENT(in ) :: ktyp ! tag of the message
INTEGER , INTENT(inout) :: md_req ! argument for isend
!!
INTEGER :: iflag
!!----------------------------------------------------------------------
!
#if ! defined key_mpi_off
CALL mpi_isend( pmess, kbytes, mpi_double_precision, kdest , ktyp, mpi_comm_oce, md_req, iflag )
#endif
!
END SUBROUTINE mppsend_dp
SUBROUTINE mppsend_sp( ktyp, pmess, kbytes, kdest, md_req )
!!----------------------------------------------------------------------
!! *** routine mppsend ***
!!
!! ** Purpose : Send messag passing array
!!
!!----------------------------------------------------------------------
REAL(sp), INTENT(inout) :: pmess(*) ! array of real
INTEGER , INTENT(in ) :: kbytes ! size of the array pmess
INTEGER , INTENT(in ) :: kdest ! receive process number
INTEGER , INTENT(in ) :: ktyp ! tag of the message
INTEGER , INTENT(inout) :: md_req ! argument for isend
!!
INTEGER :: iflag
!!----------------------------------------------------------------------
!
#if ! defined key_mpi_off
CALL mpi_isend( pmess, kbytes, mpi_real, kdest , ktyp, mpi_comm_oce, md_req, iflag )
#endif
!
END SUBROUTINE mppsend_sp
SUBROUTINE mpprecv( ktyp, pmess, kbytes, ksource )
!!----------------------------------------------------------------------
!! *** routine mpprecv ***
!!
!! ** Purpose : Receive messag passing array
!!
!!----------------------------------------------------------------------
REAL(wp), INTENT(inout) :: pmess(*) ! array of real
INTEGER , INTENT(in ) :: kbytes ! suze of the array pmess
INTEGER , INTENT(in ) :: ktyp ! Tag of the recevied message
INTEGER, OPTIONAL, INTENT(in) :: ksource ! source process number
!!
INTEGER :: istatus(mpi_status_size)
INTEGER :: iflag
INTEGER :: use_source
INTEGER :: mpi_working_type
!!----------------------------------------------------------------------
!
#if ! defined key_mpi_off
! If a specific process number has been passed to the receive call,
! use that one. Default is to use mpi_any_source
use_source = mpi_any_source
IF( PRESENT(ksource) ) use_source = ksource
!
IF (wp == dp) THEN
mpi_working_type = mpi_double_precision
ELSE
mpi_working_type = mpi_real
END IF
CALL mpi_recv( pmess, kbytes, mpi_working_type, use_source, ktyp, mpi_comm_oce, istatus, iflag )
#endif
!
END SUBROUTINE mpprecv
SUBROUTINE mpprecv_dp( ktyp, pmess, kbytes, ksource )
!!----------------------------------------------------------------------
!! *** routine mpprecv ***
!!
!! ** Purpose : Receive messag passing array
!!
!!----------------------------------------------------------------------
REAL(dp), INTENT(inout) :: pmess(*) ! array of real
INTEGER , INTENT(in ) :: kbytes ! suze of the array pmess
INTEGER , INTENT(in ) :: ktyp ! Tag of the recevied message
INTEGER, OPTIONAL, INTENT(in) :: ksource ! source process number
!!
INTEGER :: istatus(mpi_status_size)
INTEGER :: iflag
INTEGER :: use_source
!!----------------------------------------------------------------------
!
#if ! defined key_mpi_off
! If a specific process number has been passed to the receive call,
! use that one. Default is to use mpi_any_source
use_source = mpi_any_source
IF( PRESENT(ksource) ) use_source = ksource
!
CALL mpi_recv( pmess, kbytes, mpi_double_precision, use_source, ktyp, mpi_comm_oce, istatus, iflag )
#endif
!
END SUBROUTINE mpprecv_dp
SUBROUTINE mpprecv_sp( ktyp, pmess, kbytes, ksource )
!!----------------------------------------------------------------------
!! *** routine mpprecv ***
!!
!! ** Purpose : Receive messag passing array
!!
!!----------------------------------------------------------------------
REAL(sp), INTENT(inout) :: pmess(*) ! array of real
INTEGER , INTENT(in ) :: kbytes ! suze of the array pmess
INTEGER , INTENT(in ) :: ktyp ! Tag of the recevied message
INTEGER, OPTIONAL, INTENT(in) :: ksource ! source process number
!!
INTEGER :: istatus(mpi_status_size)
INTEGER :: iflag
INTEGER :: use_source
!!----------------------------------------------------------------------
!
#if ! defined key_mpi_off
! If a specific process number has been passed to the receive call,
! use that one. Default is to use mpi_any_source
use_source = mpi_any_source
IF( PRESENT(ksource) ) use_source = ksource
!
CALL mpi_recv( pmess, kbytes, mpi_real, use_source, ktyp, mpi_comm_oce, istatus, iflag )
#endif
!
END SUBROUTINE mpprecv_sp
SUBROUTINE mppgather( ptab, kp, pio )
!!----------------------------------------------------------------------
!! *** routine mppgather ***
!!
!! ** Purpose : Transfert between a local subdomain array and a work
!! array which is distributed following the vertical level.
!!
!!----------------------------------------------------------------------
REAL(wp), DIMENSION(jpi,jpj) , INTENT(in ) :: ptab ! subdomain input array
INTEGER , INTENT(in ) :: kp ! record length
REAL(wp), DIMENSION(jpi,jpj,jpnij), INTENT( out) :: pio ! subdomain input array
!!
INTEGER :: itaille, ierror ! temporary integer
!!---------------------------------------------------------------------
!
itaille = jpi * jpj
#if ! defined key_mpi_off
CALL mpi_gather( ptab, itaille, mpi_double_precision, pio, itaille , &
& mpi_double_precision, kp , mpi_comm_oce, ierror )
#else
pio(:,:,1) = ptab(:,:)
#endif
!
END SUBROUTINE mppgather
SUBROUTINE mppscatter( pio, kp, ptab )
!!----------------------------------------------------------------------
!! *** routine mppscatter ***
!!
!! ** Purpose : Transfert between awork array which is distributed
!! following the vertical level and the local subdomain array.
!!
!!----------------------------------------------------------------------
REAL(wp), DIMENSION(jpi,jpj,jpnij) :: pio ! output array
INTEGER :: kp ! Tag (not used with MPI
REAL(wp), DIMENSION(jpi,jpj) :: ptab ! subdomain array input
!!
INTEGER :: itaille, ierror ! temporary integer
!!---------------------------------------------------------------------
!
itaille = jpi * jpj
!
#if ! defined key_mpi_off
CALL mpi_scatter( pio, itaille, mpi_double_precision, ptab, itaille , &
& mpi_double_precision, kp , mpi_comm_oce, ierror )
#else
ptab(:,:) = pio(:,:,1)
#endif
!
END SUBROUTINE mppscatter
SUBROUTINE mpp_delay_sum( cdname, cdelay, y_in, pout, ldlast, kcom )
!!----------------------------------------------------------------------
!! *** routine mpp_delay_sum ***
!!
!! ** Purpose : performed delayed mpp_sum, the result is received on next call
!!
!!----------------------------------------------------------------------
CHARACTER(len=*), INTENT(in ) :: cdname ! name of the calling subroutine
CHARACTER(len=*), INTENT(in ) :: cdelay ! name (used as id) of the delayed operation
COMPLEX(dp), INTENT(in ), DIMENSION(:) :: y_in
REAL(wp), INTENT( out), DIMENSION(:) :: pout
LOGICAL, INTENT(in ) :: ldlast ! true if this is the last time we call this routine
INTEGER, INTENT(in ), OPTIONAL :: kcom
!!
INTEGER :: ji, isz
INTEGER :: idvar
INTEGER :: ierr, ilocalcomm
COMPLEX(dp), ALLOCATABLE, DIMENSION(:) :: ytmp
!!----------------------------------------------------------------------
#if ! defined key_mpi_off
ilocalcomm = mpi_comm_oce
IF( PRESENT(kcom) ) ilocalcomm = kcom
isz = SIZE(y_in)
IF( narea == 1 .AND. numcom == -1 ) CALL mpp_report( cdname, ld_dlg = .TRUE. )
idvar = -1
DO ji = 1, nbdelay
IF( TRIM(cdelay) == TRIM(c_delaylist(ji)) ) idvar = ji
END DO
IF ( idvar == -1 ) CALL ctl_stop( 'STOP',' mpp_delay_sum : please add a new delayed exchange for '//TRIM(cdname) )
IF ( ndelayid(idvar) == 0 ) THEN ! first call with restart: %z1d defined in iom_delay_rst
! --------------------------
IF ( SIZE(todelay(idvar)%z1d) /= isz ) THEN ! Check dimension coherence
IF(lwp) WRITE(numout,*) ' WARNING: the nb of delayed variables in restart file is not the model one'
DEALLOCATE(todelay(idvar)%z1d)
ndelayid(idvar) = -1 ! do as if we had no restart
ELSE
ALLOCATE(todelay(idvar)%y1d(isz))
todelay(idvar)%y1d(:) = CMPLX(todelay(idvar)%z1d(:), 0., wp) ! create %y1d, complex variable needed by mpi_sumdd
ndelayid(idvar) = MPI_REQUEST_NULL ! initialised request to a valid value
END IF
ENDIF
IF( ndelayid(idvar) == -1 ) THEN ! first call without restart: define %y1d and %z1d from y_in with blocking allreduce
! --------------------------
ALLOCATE(todelay(idvar)%z1d(isz), todelay(idvar)%y1d(isz)) ! allocate also %z1d as used for the restart
CALL mpi_allreduce( y_in(:), todelay(idvar)%y1d(:), isz, MPI_DOUBLE_COMPLEX, mpi_sumdd, ilocalcomm, ierr ) ! get %y1d
ndelayid(idvar) = MPI_REQUEST_NULL
ENDIF
CALL mpp_delay_rcv( idvar ) ! make sure %z1d is received
! send back pout from todelay(idvar)%z1d defined at previous call
pout(:) = todelay(idvar)%z1d(:)
! send y_in into todelay(idvar)%y1d with a non-blocking communication
# if defined key_mpi2
IF( ln_timing ) CALL tic_tac( .TRUE., ld_global = .TRUE.)
CALL mpi_allreduce( y_in(:), todelay(idvar)%y1d(:), isz, MPI_DOUBLE_COMPLEX, mpi_sumdd, ilocalcomm, ierr )
ndelayid(idvar) = MPI_REQUEST_NULL
IF( ln_timing ) CALL tic_tac(.FALSE., ld_global = .TRUE.)
# else
CALL mpi_iallreduce( y_in(:), todelay(idvar)%y1d(:), isz, MPI_DOUBLE_COMPLEX, mpi_sumdd, ilocalcomm, ndelayid(idvar), ierr )
# endif
#else
pout(:) = REAL(y_in(:), wp)
#endif
END SUBROUTINE mpp_delay_sum
SUBROUTINE mpp_delay_max( cdname, cdelay, p_in, pout, ldlast, kcom )
!!----------------------------------------------------------------------
!! *** routine mpp_delay_max ***
!!
!! ** Purpose : performed delayed mpp_max, the result is received on next call
!!
!!----------------------------------------------------------------------
CHARACTER(len=*), INTENT(in ) :: cdname ! name of the calling subroutine
CHARACTER(len=*), INTENT(in ) :: cdelay ! name (used as id) of the delayed operation
REAL(wp), INTENT(in ), DIMENSION(:) :: p_in !
REAL(wp), INTENT( out), DIMENSION(:) :: pout !
LOGICAL, INTENT(in ) :: ldlast ! true if this is the last time we call this routine
INTEGER, INTENT(in ), OPTIONAL :: kcom
!!
INTEGER :: ji, isz
INTEGER :: idvar
INTEGER :: ierr, ilocalcomm
INTEGER :: MPI_TYPE
!!----------------------------------------------------------------------
#if ! defined key_mpi_off
if( wp == dp ) then
MPI_TYPE = MPI_DOUBLE_PRECISION
else if ( wp == sp ) then
MPI_TYPE = MPI_REAL
else
CALL ctl_stop( "Error defining type, wp is neither dp nor sp" )
end if
ilocalcomm = mpi_comm_oce
IF( PRESENT(kcom) ) ilocalcomm = kcom
isz = SIZE(p_in)
IF( narea == 1 .AND. numcom == -1 ) CALL mpp_report( cdname, ld_dlg = .TRUE. )
idvar = -1
DO ji = 1, nbdelay
IF( TRIM(cdelay) == TRIM(c_delaylist(ji)) ) idvar = ji
END DO
IF ( idvar == -1 ) CALL ctl_stop( 'STOP',' mpp_delay_max : please add a new delayed exchange for '//TRIM(cdname) )
IF ( ndelayid(idvar) == 0 ) THEN ! first call with restart: %z1d defined in iom_delay_rst
! --------------------------
IF ( SIZE(todelay(idvar)%z1d) /= isz ) THEN ! Check dimension coherence
IF(lwp) WRITE(numout,*) ' WARNING: the nb of delayed variables in restart file is not the model one'
DEALLOCATE(todelay(idvar)%z1d)
ndelayid(idvar) = -1 ! do as if we had no restart
ELSE
ndelayid(idvar) = MPI_REQUEST_NULL
END IF
ENDIF
IF( ndelayid(idvar) == -1 ) THEN ! first call without restart: define %z1d from p_in with a blocking allreduce
! --------------------------
ALLOCATE(todelay(idvar)%z1d(isz))
CALL mpi_allreduce( p_in(:), todelay(idvar)%z1d(:), isz, MPI_DOUBLE_PRECISION, mpi_max, ilocalcomm, ierr ) ! get %z1d
ndelayid(idvar) = MPI_REQUEST_NULL
ENDIF
CALL mpp_delay_rcv( idvar ) ! make sure %z1d is received
! send back pout from todelay(idvar)%z1d defined at previous call
pout(:) = todelay(idvar)%z1d(:)
! send p_in into todelay(idvar)%z1d with a non-blocking communication
! (PM) Should we get rid of MPI2 option ? MPI3 was release in 2013. Who is still using MPI2 ?
# if defined key_mpi2
IF( ln_timing ) CALL tic_tac( .TRUE., ld_global = .TRUE.)
CALL mpi_allreduce( p_in(:), todelay(idvar)%z1d(:), isz, MPI_TYPE, mpi_max, ilocalcomm, ierr )
IF( ln_timing ) CALL tic_tac(.FALSE., ld_global = .TRUE.)
# else
CALL mpi_iallreduce( p_in(:), todelay(idvar)%z1d(:), isz, MPI_TYPE, mpi_max, ilocalcomm, ndelayid(idvar), ierr )
# endif
#else
pout(:) = p_in(:)
#endif
END SUBROUTINE mpp_delay_max
SUBROUTINE mpp_delay_rcv( kid )
!!----------------------------------------------------------------------
!! *** routine mpp_delay_rcv ***
!!
!! ** Purpose : force barrier for delayed mpp (needed for restart)
!!
!!----------------------------------------------------------------------
INTEGER,INTENT(in ) :: kid
INTEGER :: ierr
!!----------------------------------------------------------------------
#if ! defined key_mpi_off
IF( ln_timing ) CALL tic_tac( .TRUE., ld_global = .TRUE.)
! test on ndelayid(kid) useless as mpi_wait return immediatly if the request handle is MPI_REQUEST_NULL
CALL mpi_wait( ndelayid(kid), MPI_STATUS_IGNORE, ierr ) ! after this ndelayid(kid) = MPI_REQUEST_NULL
IF( ln_timing ) CALL tic_tac( .FALSE., ld_global = .TRUE.)
IF( ASSOCIATED(todelay(kid)%y1d) ) todelay(kid)%z1d(:) = REAL(todelay(kid)%y1d(:), wp) ! define %z1d from %y1d
#endif
END SUBROUTINE mpp_delay_rcv
SUBROUTINE mpp_bcast_nml( cdnambuff , kleng )
CHARACTER(LEN=:) , ALLOCATABLE, INTENT(INOUT) :: cdnambuff
INTEGER , INTENT(INOUT) :: kleng
!!----------------------------------------------------------------------
!! *** routine mpp_bcast_nml ***
!!
!! ** Purpose : broadcast namelist character buffer
!!
!!----------------------------------------------------------------------
!!
INTEGER :: iflag
!!----------------------------------------------------------------------
!
#if ! defined key_mpi_off
call MPI_BCAST(kleng, 1, MPI_INT, 0, mpi_comm_oce, iflag)
call MPI_BARRIER(mpi_comm_oce, iflag)
!$AGRIF_DO_NOT_TREAT
IF ( .NOT. ALLOCATED(cdnambuff) ) ALLOCATE( CHARACTER(LEN=kleng) :: cdnambuff )
!$AGRIF_END_DO_NOT_TREAT
call MPI_BCAST(cdnambuff, kleng, MPI_CHARACTER, 0, mpi_comm_oce, iflag)
call MPI_BARRIER(mpi_comm_oce, iflag)
#endif
!
END SUBROUTINE mpp_bcast_nml
!!----------------------------------------------------------------------
!! *** mppmax_a_int, mppmax_int, mppmax_a_real, mppmax_real ***
!!
!!----------------------------------------------------------------------
!!
# define OPERATION_MAX
# define INTEGER_TYPE
# define DIM_0d
# define ROUTINE_ALLREDUCE mppmax_int
# include "mpp_allreduce_generic.h90"
# undef ROUTINE_ALLREDUCE
# undef DIM_0d
# define DIM_1d
# define ROUTINE_ALLREDUCE mppmax_a_int
# include "mpp_allreduce_generic.h90"
# undef ROUTINE_ALLREDUCE
# undef DIM_1d
# undef INTEGER_TYPE
!
!!
!! ---- SINGLE PRECISION VERSIONS
!!
# define SINGLE_PRECISION
# define REAL_TYPE
# define DIM_0d
# define ROUTINE_ALLREDUCE mppmax_real_sp
# include "mpp_allreduce_generic.h90"
# undef ROUTINE_ALLREDUCE
# undef DIM_0d
# define DIM_1d
# define ROUTINE_ALLREDUCE mppmax_a_real_sp
# include "mpp_allreduce_generic.h90"
# undef ROUTINE_ALLREDUCE
# undef DIM_1d
# undef SINGLE_PRECISION
!!
!!
!! ---- DOUBLE PRECISION VERSIONS
!!
!
# define DIM_0d
# define ROUTINE_ALLREDUCE mppmax_real_dp
# include "mpp_allreduce_generic.h90"
# undef ROUTINE_ALLREDUCE
# undef DIM_0d
# define DIM_1d
# define ROUTINE_ALLREDUCE mppmax_a_real_dp
# include "mpp_allreduce_generic.h90"
# undef ROUTINE_ALLREDUCE
# undef DIM_1d
# undef REAL_TYPE
# undef OPERATION_MAX
!!----------------------------------------------------------------------
!! *** mppmin_a_int, mppmin_int, mppmin_a_real, mppmin_real ***
!!
!!----------------------------------------------------------------------
!!
# define OPERATION_MIN
# define INTEGER_TYPE
# define DIM_0d
# define ROUTINE_ALLREDUCE mppmin_int
# include "mpp_allreduce_generic.h90"
# undef ROUTINE_ALLREDUCE
# undef DIM_0d
# define DIM_1d
# define ROUTINE_ALLREDUCE mppmin_a_int
# include "mpp_allreduce_generic.h90"
# undef ROUTINE_ALLREDUCE
# undef DIM_1d
# undef INTEGER_TYPE
!
!!
!! ---- SINGLE PRECISION VERSIONS
!!
# define SINGLE_PRECISION
# define REAL_TYPE
# define DIM_0d
# define ROUTINE_ALLREDUCE mppmin_real_sp
# include "mpp_allreduce_generic.h90"
# undef ROUTINE_ALLREDUCE
# undef DIM_0d
# define DIM_1d
# define ROUTINE_ALLREDUCE mppmin_a_real_sp
# include "mpp_allreduce_generic.h90"
# undef ROUTINE_ALLREDUCE
# undef DIM_1d
# undef SINGLE_PRECISION
!!
!! ---- DOUBLE PRECISION VERSIONS
!!
# define DIM_0d
# define ROUTINE_ALLREDUCE mppmin_real_dp
# include "mpp_allreduce_generic.h90"
# undef ROUTINE_ALLREDUCE
# undef DIM_0d
# define DIM_1d
# define ROUTINE_ALLREDUCE mppmin_a_real_dp
# include "mpp_allreduce_generic.h90"
# undef ROUTINE_ALLREDUCE
# undef DIM_1d
# undef REAL_TYPE
# undef OPERATION_MIN
!!----------------------------------------------------------------------
!! *** mppsum_a_int, mppsum_int, mppsum_a_real, mppsum_real ***
!!
!! Global sum of 1D array or a variable (integer, real or complex)
!!----------------------------------------------------------------------
!!
# define OPERATION_SUM
# define INTEGER_TYPE
# define DIM_0d
# define ROUTINE_ALLREDUCE mppsum_int
# include "mpp_allreduce_generic.h90"
# undef ROUTINE_ALLREDUCE
# undef DIM_0d
# define DIM_1d
# define ROUTINE_ALLREDUCE mppsum_a_int
# include "mpp_allreduce_generic.h90"
# undef ROUTINE_ALLREDUCE
# undef DIM_1d
# undef INTEGER_TYPE
!!
!! ---- SINGLE PRECISION VERSIONS
!!
# define OPERATION_SUM
# define SINGLE_PRECISION
# define REAL_TYPE
# define DIM_0d
# define ROUTINE_ALLREDUCE mppsum_real_sp
# include "mpp_allreduce_generic.h90"
# undef ROUTINE_ALLREDUCE
# undef DIM_0d
# define DIM_1d
# define ROUTINE_ALLREDUCE mppsum_a_real_sp
# include "mpp_allreduce_generic.h90"
# undef ROUTINE_ALLREDUCE
# undef DIM_1d
# undef REAL_TYPE
# undef OPERATION_SUM
# undef SINGLE_PRECISION
!!
!! ---- DOUBLE PRECISION VERSIONS
!!
# define OPERATION_SUM
# define REAL_TYPE
# define DIM_0d
# define ROUTINE_ALLREDUCE mppsum_real_dp
# include "mpp_allreduce_generic.h90"
# undef ROUTINE_ALLREDUCE
# undef DIM_0d
# define DIM_1d
# define ROUTINE_ALLREDUCE mppsum_a_real_dp
# include "mpp_allreduce_generic.h90"
# undef ROUTINE_ALLREDUCE
# undef DIM_1d
# undef REAL_TYPE
# undef OPERATION_SUM
# define OPERATION_SUM_DD
# define COMPLEX_TYPE
# define DIM_0d
# define ROUTINE_ALLREDUCE mppsum_realdd
# include "mpp_allreduce_generic.h90"
# undef ROUTINE_ALLREDUCE
# undef DIM_0d
# define DIM_1d
# define ROUTINE_ALLREDUCE mppsum_a_realdd
# include "mpp_allreduce_generic.h90"
# undef ROUTINE_ALLREDUCE
# undef DIM_1d
# undef COMPLEX_TYPE
# undef OPERATION_SUM_DD
!!----------------------------------------------------------------------
!! *** mpp_minloc2d, mpp_minloc3d, mpp_maxloc2d, mpp_maxloc3d
!!
!!----------------------------------------------------------------------
!!
!!
!! ---- SINGLE PRECISION VERSIONS
!!
# define SINGLE_PRECISION
# define OPERATION_MINLOC
# define DIM_2d
# define ROUTINE_LOC mpp_minloc2d_sp
# include "mpp_loc_generic.h90"
# undef ROUTINE_LOC
# undef DIM_2d
# define DIM_3d
# define ROUTINE_LOC mpp_minloc3d_sp
# include "mpp_loc_generic.h90"
# undef ROUTINE_LOC
# undef DIM_3d
# undef OPERATION_MINLOC
# define OPERATION_MAXLOC
# define DIM_2d
# define ROUTINE_LOC mpp_maxloc2d_sp
# include "mpp_loc_generic.h90"
# undef ROUTINE_LOC
# undef DIM_2d
# define DIM_3d
# define ROUTINE_LOC mpp_maxloc3d_sp
# include "mpp_loc_generic.h90"
# undef ROUTINE_LOC
# undef DIM_3d
# undef OPERATION_MAXLOC
# undef SINGLE_PRECISION
!!
!! ---- DOUBLE PRECISION VERSIONS
!!
# define OPERATION_MINLOC
# define DIM_2d
# define ROUTINE_LOC mpp_minloc2d_dp
# include "mpp_loc_generic.h90"
# undef ROUTINE_LOC
# undef DIM_2d
# define DIM_3d
# define ROUTINE_LOC mpp_minloc3d_dp
# include "mpp_loc_generic.h90"
# undef ROUTINE_LOC
# undef DIM_3d
# undef OPERATION_MINLOC
# define OPERATION_MAXLOC
# define DIM_2d
# define ROUTINE_LOC mpp_maxloc2d_dp
# include "mpp_loc_generic.h90"
# undef ROUTINE_LOC
# undef DIM_2d
# define DIM_3d
# define ROUTINE_LOC mpp_maxloc3d_dp
# include "mpp_loc_generic.h90"
# undef ROUTINE_LOC
# undef DIM_3d
# undef OPERATION_MAXLOC
SUBROUTINE mppsync()
!!----------------------------------------------------------------------
!! *** routine mppsync ***
!!
!! ** Purpose : Massively parallel processors, synchroneous
!!
!!-----------------------------------------------------------------------
INTEGER :: ierror
!!-----------------------------------------------------------------------
!
#if ! defined key_mpi_off
CALL mpi_barrier( mpi_comm_oce, ierror )
#endif
!
END SUBROUTINE mppsync
SUBROUTINE mppstop( ld_abort )
!!----------------------------------------------------------------------
!! *** routine mppstop ***
!!
!! ** purpose : Stop massively parallel processors method
!!
!!----------------------------------------------------------------------
LOGICAL, OPTIONAL, INTENT(in) :: ld_abort ! source process number
LOGICAL :: ll_abort
INTEGER :: info, ierr
!!----------------------------------------------------------------------
ll_abort = .FALSE.
IF( PRESENT(ld_abort) ) ll_abort = ld_abort
!
#if ! defined key_mpi_off
IF(ll_abort) THEN
CALL mpi_abort( MPI_COMM_WORLD, 123, info )
ELSE
CALL mppsync
CALL mpi_finalize( info )
ENDIF
#endif
IF( ll_abort ) STOP 123
!
END SUBROUTINE mppstop
SUBROUTINE mpp_comm_free( kcom )
!!----------------------------------------------------------------------
INTEGER, INTENT(inout) :: kcom
!!