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mod_xc.F
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module mod_xc
use mod_dimensions !include 'dimensions.h'
implicit none
c
c --- HYCOM communication interface.
c --- see README.src.mod_xc for more details.
c
include 'unit_offset.h'
c
c --- tile dimensions and tile numbers (counting from 1), see xcspmd
integer, public, save :: ipr, jpr, ijpr,
& mproc,nproc,mnproc,
& mp_1st
#if defined(MPI)
c
c --- needed for some versions of mod_za
integer, public, save :: group_1st_in_row
#if defined(OCEANS2)
c
c --- two copies of HYCOM on distinct MPI tasks, master/slave via mod_pipe.
integer, public, save :: nocean,idp1_1,idp1_2
#endif
#endif
c
c --- region type (-1==unknown,
c --- 0== closed/closed,
c --- 1==periodic/closed,
c --- 2==periodic/arctic,
c --- 3==periodic/fplane
c --- 4== closed/fplane)
integer, public, save :: nreg
c
c --- timers on, usually and default .true.
logical, public, save :: timer_on=.true.
c
c --- fill value for land, usually 0.0
real, public, save :: vland
real*4, public, save :: vland4 !xcget4 only
c
c --- xctilr halo options
integer, public, parameter :: halo_ps=1, halo_pv=11,
& halo_qs=2, halo_qv=12,
& halo_us=3, halo_uv=13,
& halo_vs=4, halo_vv=14
c
c --- xcsync stdout flushing options
logical, public, parameter :: flush_lp=.true.,
& no_flush=.false.
c
c --- generic subroutine names
interface xcmaxr
module procedure xcmaxr_0 ! rank 0 array (i.e. scalar)
module procedure xcmaxr_1 ! rank 1 array
module procedure xcmaxr_0o ! rank 0 array, old interface
module procedure xcmaxr_1o ! rank 1 array, old interface
end interface
interface xcminr
module procedure xcminr_0 ! rank 0 array (i.e. scalar)
module procedure xcminr_1 ! rank 1 array
module procedure xcminr_0o ! rank 0 array, old interface
module procedure xcminr_1o ! rank 1 array, old interface
end interface
#if defined(USE_ESMF)
c
c --- public data structures for ESMF, see xcspmd
integer, public, save :: deBlockList(2,2,iqr*jqr)
#endif
c
c --- private subroutines
private xciget_sm
c
c --- private timer variables, see xctmri
character*6, private, dimension(97), save :: cc
integer, private, save :: nxc
integer, private, dimension(97), save :: nc
real*8, private, dimension(97), save :: tc,t0
real*8, private, dimension(2), save :: tcxc,tcxl
#if defined(MPI) || defined(SHMEM)
c
c --- private message passing data structures, see xcspmd
#if defined(RELO)
integer, private, save, allocatable, dimension(:,:) :: mpe_i
integer, private, save, allocatable, dimension(:) :: npe_j
#else
integer, private, save :: mpe_i(0:itdm+1,0:jqr),npe_j(0:jtdm+1)
#endif
integer, private, save :: idproc( 0: iqr+1,0:jqr+1),
& idproc1(0:ijqr+1),idhalo(2),
& i0_pe(iqr,jqr),ii_pe(iqr,jqr),
& j0_pe(iqr,jqr),jj_pe(iqr,jqr),
& mpe_1(jqr),
& mpe_e(jqr)
integer, private, save :: i1sum(iqr,jqr),iisum(iqr,jqr)
integer, private, save :: m0_top,i0_st(iqr),ii_st(iqr),
& mm_top,i0_gt(iqr),ii_gt(iqr),
& m0_bot,i0_sb(iqr),ii_sb(iqr),
& mm_bot,i0_gb(iqr),ii_gb(iqr)
integer, private, save :: null_tile
#endif
#if defined(MPI)
integer, private, save :: mpi_comm_hycom
#endif
#if defined(MPI) || defined(SHMEM)
c
c --- private message passing buffers, used by more than one routine
#if defined(RELO)
real, save, private, allocatable, dimension(:,:) ::
& al ! xcaget and xcaput
real, save, private, allocatable, dimension(:) ::
& at ! xcaget and xcaput
real*4, save, private, allocatable, dimension(:,:) ::
& al4, ! xcaget4 and xcaput4
& alt4 ! xcaget4 and xcaput4
real*4, save, private, allocatable, dimension(:) ::
& at4 ! xcaget4 and xcaput4
integer, save, private ::
& mxsum
real*8, save, private, allocatable, dimension(:) ::
& sum8t, ! xcsum and xcsumj
& sum8j ! xcsum and xcsumj
real*8, save, private ::
& sum8s
#else
real, save, private, dimension(itdm,jdm) ::
& al ! xcaget and xcaput
real, save, private, dimension(idm*jdm) ::
& at ! xcaget and xcaput
real*4, save, private, dimension(itdm,jdm) ::
& al4 ! xcaget4 and xcaput4
! real*4, save, private, dimension(idm*jdm,jpr) :: !!Alex does not work
! & alt4 ! xcaget4 and xcaput4
real*4, save, private, allocatable, dimension(:,:) ::
& alt4 ! xcaget4 and xcaput4
real*4, save, private, dimension(idm*jdm) ::
& at4 ! xcaget4 and xcaput4
integer, private, parameter :: mxsum=(idm+4*nbdy)/(2*nbdy+1)
real*8, save, private, dimension(mxsum*jdm) ::
& sum8t ! xcsum and xcsumj
real*8, save, private, dimension(jdm) ::
& sum8j ! xcsum and xcsumj
real*8, save, private ::
& sum8s ! xcsum and xcsumj
#endif
integer, private, parameter :: nmax=1024
real, save, private, dimension(nmax) ::
& b,c ! xcastr, xcmaxr, xcminr
#endif
c
c --- actual module subroutines
contains
#if defined(MPI) || defined(SHMEM)
# include "mod_xc_mp.h"
#else
# include "mod_xc_sm.h"
#endif
end module mod_xc