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update_ca.F90
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update_ca.F90
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module update_ca
!Main module for evolving CA in time, also includes
!read and write restart routines, to restart fields
!on the ncellsxncells CA grid
use kinddef
use halo_exchange, only: atmosphere_scalar_field_halo
use random_numbers, only: random_01_CB
use mpi_wrapper, only: mype,mp_reduce_min,mp_reduce_max
use mpp_domains_mod, only: domain2D,mpp_get_global_domain,CENTER, mpp_get_data_domain, mpp_get_compute_domain,mpp_get_ntile_count,&
mpp_define_mosaic,mpp_get_layout,mpp_define_io_domain,mpp_get_io_domain_layout,mpp_get_domain_extents
use mpp_mod, only: mpp_error, mpp_pe, mpp_root_pe, &
NOTE, FATAL
use fms2_io_mod, only: FmsNetcdfDomainFile_t, unlimited, &
open_file, close_file, &
register_axis, register_restart_field, &
register_variable_attribute, register_field, &
read_restart, write_restart, write_data, &
get_global_io_domain_indices, variable_exists
implicit none
public write_ca_restart
public read_ca_restart
public update_cells_sgs
public update_cells_global
integer,allocatable :: board(:,:,:), lives(:,:,:)
integer,allocatable :: board_g(:,:,:), lives_g(:,:,:)
integer,public :: isdnx,iednx,jsdnx,jednx,nxncells,nyncells
integer,public :: iscnx,iecnx,jscnx,jecnx,nxncells_g,nyncells_g
integer,public :: isdnx_g,iednx_g,jsdnx_g,jednx_g
integer,public :: iscnx_g,iecnx_g,jscnx_g,jecnx_g
integer*8, public :: csum
type(domain2D),public :: domain_sgs,domain_global
logical, public :: cold_start_ca_sgs=.true.,cold_start_ca_global=.true.
contains
!Compute CA domain:--------------------------------------------------------------------------
subroutine define_ca_domain(domain_in,domain_out,halo,ncells,nxncells_local,nyncells_local)
implicit none
type(domain2D),intent(inout) :: domain_in
type(domain2D),intent(inout) :: domain_out
integer,intent(in) :: ncells,halo
integer,intent(out) :: nxncells_local, nyncells_local
integer :: layout(2)
integer, allocatable :: xextent(:,:), yextent(:,:)
integer :: ntiles
integer, allocatable :: pe_start(:), pe_end(:)
integer :: i, j, k, n
integer :: nx, ny
integer :: isc,iec,jsc,jec
!--- get params from fv domain mosaic for building domain_out
call mpp_get_global_domain(domain_in,xsize=nx,ysize=ny,position=CENTER)
call mpp_get_layout(domain_in,layout)
ntiles = mpp_get_ntile_count(domain_in)
allocate(xextent(layout(1),ntiles))
allocate(yextent(layout(2),ntiles))
call mpp_get_domain_extents(domain_in,xextent,yextent)
xextent=xextent*ncells
yextent=yextent*ncells
!write(1000+mpp_pe(),*) "nx,ny: ",nx,ny
!write(1000+mpp_pe(),*) "layout: ",layout
!--- define mosaic for domain_out refined by 'ncells' from domain_in
nxncells_local=nx*ncells+1
nyncells_local=ny*ncells+1
allocate(pe_start(ntiles))
allocate(pe_end(ntiles))
do n = 1, ntiles
pe_start(n) = mpp_root_pe() + (n-1)*layout(1)*layout(2)
pe_end(n) = mpp_root_pe() + n*layout(1)*layout(2)-1
enddo
call define_cubic_mosaic(domain_out, nxncells_local-1, nyncells_local-1, &
layout, pe_start, pe_end, halo, ntiles, xextent, yextent )
deallocate(pe_start)
deallocate(pe_end)
deallocate(xextent)
deallocate(yextent)
end subroutine define_ca_domain
!---------------------------------------------------------------------------------------------
subroutine write_ca_restart(timestamp)
!Write restart files
implicit none
character(len=*), optional, intent(in) :: timestamp
character(len=32) :: fn_ca = 'ca_data.nc'
type(FmsNetcdfDomainFile_t) :: CA_restart
integer :: id_restart,nx,ny,i
integer :: is,ie,js,je,nca,nca_g
integer, allocatable, dimension(:) :: buffer
character(7) :: indir='RESTART'
character(72) :: infile
logical :: amiopen
amiopen=.false.
!Return if not allocated:
if(.not. allocated(board) .and. .not. allocated(lives) .and. .not. allocated(board_g) .and. .not. allocated(lives_g))return
infile=trim(indir)//'/'//trim(fn_ca)
if( present(timestamp) ) infile=trim(indir)//'/'//trim(timestamp)//'.'//trim(fn_ca)
!--- register axis
if (allocated(board)) then
amiopen=open_file(CA_restart, trim(infile), 'overwrite', domain=domain_sgs, is_restart=.true., dont_add_res_to_filename=.true.)
if( amiopen ) then
nca=SIZE(board,3)
call mpp_get_compute_domain (domain_sgs,is,ie,js,je)
call register_axis(CA_restart, 'xaxis_1', 'X')
call register_field(CA_restart, 'xaxis_1', 'double', (/'xaxis_1'/))
call register_variable_attribute(CA_restart, 'xaxis_1', 'cartesian_axis', 'X', str_len=1)
call get_global_io_domain_indices(CA_restart, 'xaxis_1', is, ie, indices=buffer)
call write_data(CA_restart, "xaxis_1", buffer)
deallocate(buffer)
call register_axis(CA_restart, 'yaxis_1', 'Y')
call register_field(CA_restart, 'yaxis_1', 'double', (/'yaxis_1'/))
call register_variable_attribute(CA_restart, 'yaxis_1', 'cartesian_axis', 'Y', str_len=1)
call get_global_io_domain_indices(CA_restart, 'yaxis_1', js, je, indices=buffer)
call write_data(CA_restart, "yaxis_1", buffer)
deallocate(buffer)
call register_axis(CA_restart, 'zaxis_1', nca )
call register_field(CA_restart, 'zaxis_1', 'double', (/'zaxis_1'/))
call register_variable_attribute(CA_restart, 'zaxis_1', 'cartesian_axis', 'Z', str_len=1)
allocate( buffer(nca) )
do i=1, nca
buffer(i)=i
end do
call write_data(CA_restart, "zaxis_1", buffer)
deallocate(buffer)
call register_restart_field(CA_restart, "board", board(:,:,:), dimensions=(/'xaxis_1','yaxis_1','zaxis_1'/),is_optional=.false.)
call register_restart_field(CA_restart, "lives", lives(:,:,:), dimensions=(/'xaxis_1','yaxis_1','zaxis_1'/),is_optional=.false.)
call write_restart(CA_restart)
call close_file(CA_restart)
else
call mpp_error(FATAL, 'Error opening file '//trim(infile))
endif
endif
if (allocated(board_g)) then
if ( amiopen) then
amiopen=open_file(CA_restart, trim(infile), 'append', domain=domain_global, is_restart=.true., dont_add_res_to_filename=.true.)
else
amiopen=open_file(CA_restart, trim(infile), 'overwrite', domain=domain_global, is_restart=.true., dont_add_res_to_filename=.true.)
endif
if( amiopen ) then
nca_g=SIZE(board_g,3)
call mpp_get_compute_domain (domain_global,is,ie,js,je)
call register_axis(CA_restart, 'xaxis_2', 'X')
call register_field(CA_restart, 'xaxis_2', 'double', (/'xaxis_2'/))
call register_variable_attribute(CA_restart, 'xaxis_2', 'cartesian_axis', 'X', str_len=1)
call get_global_io_domain_indices(CA_restart, 'xaxis_2', is, ie, indices=buffer)
call write_data(CA_restart, "xaxis_2", buffer)
deallocate(buffer)
call register_axis(CA_restart, 'yaxis_2', 'Y')
call register_field(CA_restart, 'yaxis_2', 'double', (/'yaxis_2'/))
call register_variable_attribute(CA_restart, 'yaxis_2', 'cartesian_axis', 'Y', str_len=1)
call get_global_io_domain_indices(CA_restart, 'yaxis_2', js, je, indices=buffer)
call write_data(CA_restart, "yaxis_2", buffer)
deallocate(buffer)
call register_axis(CA_restart, 'zaxis_2', nca_g)
call register_field(CA_restart, 'zaxis_2', 'double', (/'zaxis_2'/))
call register_variable_attribute(CA_restart, 'zaxis_2', 'cartesian_axis', 'Z', str_len=1)
allocate( buffer(nca_g) )
do i=1, nca_g
buffer(i)=i
end do
call write_data(CA_restart, "zaxis_2", buffer)
deallocate(buffer)
call register_restart_field(CA_restart, "board_g", board_g(:,:,:), dimensions=(/'xaxis_2','yaxis_2','zaxis_2'/),is_optional=.false.)
call register_restart_field(CA_restart, "lives_g", lives_g(:,:,:), dimensions=(/'xaxis_2','yaxis_2','zaxis_2'/),is_optional=.false.)
call write_restart(CA_restart)
call close_file(CA_restart)
else
call mpp_error(FATAL, 'Error opening file '//trim(infile))
endif
endif
end subroutine write_ca_restart
subroutine read_ca_restart(domain_in,halo,ncells,nca,ncells_g,nca_g)
!Read restart files
implicit none
type(FmsNetcdfDomainFile_t) :: CA_restart
type(domain2D), intent(inout) :: domain_in
integer,intent(in) :: ncells,nca,nca_g,ncells_g,halo
character(len=32) :: fn_ca = 'ca_data.nc'
character(len=64) :: fname
integer :: id_restart
integer :: nxc,nyc,i
real :: pi,re,dx
integer :: nx,ny
character(5) :: indir='INPUT'
logical :: amiopen
integer, allocatable, dimension(:) :: io_layout(:)
call mpp_get_global_domain(domain_in,xsize=nx,ysize=ny,position=CENTER)
fname = trim(indir)//'/'//trim(fn_ca)
if (nca .gt. 0 ) then
allocate(io_layout(2))
io_layout=mpp_get_io_domain_layout(domain_in)
call define_ca_domain(domain_in,domain_sgs,halo,ncells,nxncells,nyncells)
call mpp_define_io_domain(domain_sgs, io_layout)
call mpp_get_compute_domain (domain_sgs,iscnx,iecnx,jscnx,jecnx)
amiopen=open_file(CA_restart, trim(fname), 'read', domain=domain_sgs, is_restart=.true., dont_add_res_to_filename=.true.)
if( amiopen ) then
call register_axis(CA_restart, 'xaxis_1', 'X')
call register_axis(CA_restart, 'yaxis_1', 'Y')
call register_axis(CA_restart, 'nca', nca)
!Get CA SGS domain
nxc = iecnx-iscnx+1
nyc = jecnx-jscnx+1
if (.not. allocated(board))then
allocate(board(nxc,nyc,nca))
endif
if (.not. allocated(lives))then
allocate(lives(nxc,nyc,nca))
endif
!Read restart
call register_restart_field(CA_restart, "board", board(:,:,:), dimensions=(/'xaxis_1','yaxis_1','zaxis_1'/),is_optional=.false.)
call register_restart_field(CA_restart, "lives", lives(:,:,:), dimensions=(/'xaxis_1','yaxis_1','zaxis_1'/),is_optional=.false.)
!--- read the CA restart data
call mpp_error(NOTE,'reading CA_sgs restart data from INPUT/ca_data.tile*.nc')
call read_restart(CA_restart)
call close_file(CA_restart)
cold_start_ca_sgs=.false.
else
call mpp_error(NOTE,'No CA_sgs restarts - cold starting CA')
cold_start_ca_sgs=.true.
endif
endif
if (nca_g .gt. 0 ) then
amiopen=open_file(CA_restart, trim(fname), 'read', domain=domain_global, is_restart=.true., dont_add_res_to_filename=.true.)
if( amiopen ) then
call register_axis(CA_restart, 'xaxis_2', 'X')
call register_axis(CA_restart, 'yaxis_2', 'Y')
call register_axis(CA_restart, 'nca_g', nca_g)
call define_ca_domain(domain_in,domain_global,halo,ncells_g,nxncells_g,nyncells_g)
call mpp_define_io_domain(domain_global, io_layout)
call mpp_get_compute_domain (domain_global,iscnx_g,iecnx_g,jscnx_g,jecnx_g)
nxc = iecnx_g-iscnx_g+1
nyc = jecnx_g-jscnx_g+1
if (.not. allocated(board_g))then
allocate(board_g(nxc,nyc,nca_g))
endif
if (.not. allocated(lives_g))then
allocate(lives_g(nxc,nyc,nca_g))
endif
!Read restart
call register_restart_field(CA_restart, "board_g", board_g(:,:,:), dimensions=(/'xaxis_2','yaxis_2','zaxis_2'/),is_optional=.false.)
call register_restart_field(CA_restart, "lives_g", lives_g(:,:,:), dimensions=(/'xaxis_2','yaxis_2','zaxis_2'/),is_optional=.false.)
call mpp_error(NOTE,'reading CA_global restart data from INPUT/ca_data.tile*.nc')
call read_restart(CA_restart)
call close_file(CA_restart)
cold_start_ca_global=.false.
else
call mpp_error(NOTE,'No CA_global restarts - cold starting CA')
cold_start_ca_global=.true.
endif
endif
end subroutine read_ca_restart
subroutine update_cells_sgs(kstep,halo,dt,initialize_ca,iseed_ca,first_flag,restart,first_time_step,nca,nxc,nyc,nxch,nych,nlon,&
nlat,isc,iec,jsc,jec,ca_advect, npx,npy, &
CA,ca_plumes,iini,ilives_in,uhigh,vhigh,dxhigh,nlives, &
nfracseed,nseed,nspinup,nf,nca_plumes,ncells,mytile)
use plumes_mod
implicit none
integer, intent(in) :: kstep,nxc,nyc,nlon,nlat,nxch,nych,nca,isc,iec,jsc,jec,npx,npy
integer(8), intent(in) :: iseed_ca
integer, intent(in) :: iini(nxc,nyc,nca),initialize_ca,ilives_in(nxc,nyc,nca)
integer, intent(in) :: mytile,halo
real(kind_phys), intent(out) :: CA(nlon,nlat)
integer, intent(out) :: ca_plumes(nlon,nlat)
integer, intent(in) :: nlives,nseed, nspinup, nf,ncells
real(kind_phys), intent(in) :: nfracseed,dt,dxhigh(nxc,nyc)
real(kind_phys), intent(inout) :: uhigh(nxc,nyc),vhigh(nxc,nyc)
logical, intent(in) :: nca_plumes,restart,ca_advect,first_flag,first_time_step
integer, allocatable :: V(:),L(:),B(:)
integer, allocatable :: AG(:,:)
integer :: inci, incj, i, j, k,sub,spinup,it,k_in,isize,jsize
integer :: ih, jh,kend, boardmax,livemax, Xn,Yn
real, allocatable :: board_halo(:,:,:)
integer, dimension(nxc,nyc) :: neighbours,birth,thresh,adlives,adgrid
integer, dimension(nxc,nyc) :: newcell, temp,newseed
integer, dimension(ncells,ncells) :: onegrid
integer(8) :: nx_full,ny_full
integer(8) :: iscale = 10000000000
logical, save :: start_from_restart
real, dimension(nxch,nych) :: adlives_halo,adgrid_halo
real, dimension(nxc,nyc) :: noise_b,umax,vmax,umin,vmin,dyhigh
integer(8) :: count, count_rate, count_max, count_trunc
integer :: count4
integer*8 :: i1,j1
real :: ncells2inv
!------------------------------------------------------------------------------------------------
if(first_time_step)then
start_from_restart = .False.
endif
!-------------------------------------------------------------------------------------------------
isize=nlon+2*halo
jsize=nlat+2*halo
k_in=1
if (.not. allocated(board))then
allocate(board(nxc,nyc,nca))
board=0.0
endif
if (.not. allocated(lives))then
allocate(lives(nxc,nyc,nca))
lives=0.0
endif
if(.not. allocated(board_halo))then
allocate(board_halo(nxch,nych,1))
endif
!Step 2: Initialize CA, if restart data exist (board,lives > 0) initialize from restart file, otherwise initialize at time-
!step initialize_ca.
boardmax=maxval(board)
call mp_reduce_max(boardmax)
livemax=maxval(lives)
call mp_reduce_max(livemax)
if(restart .and. first_time_step .and. boardmax > 0 .and. livemax > 0)then
!restart
start_from_restart = .true.
spinup = 1
else
if(kstep < initialize_ca .and. .not. start_from_restart)then
do j=1,nyc
do i=1,nxc
board(i,j,nf) = 0
lives(i,j,nf) = 0
enddo
enddo
endif
if(kstep == initialize_ca .and. .not. start_from_restart)then
do j=1,nyc
do i=1,nxc
board(i,j,nf) = iini(i,j,nf)
lives(i,j,nf) = ilives_in(i,j,nf)*iini(i,j,nf)
enddo
enddo
spinup=nspinup
else
spinup=1
endif
endif
newseed = 0
!seed with new active cells each nseed time-step regardless of restart/cold start
nx_full=int(ncells,kind=8)*int(npx-1,kind=8)
ny_full=int(ncells,kind=8)*int(npy-1,kind=8)
if(mod(kstep,nseed)==0. .and. (kstep >= initialize_ca .or. start_from_restart))then
do j=1,nyc
j1=j+(jsc-1)*ncells
do i=1,nxc
i1=i+(isc-1)*ncells
if (iseed_ca <= 0) then
!call system_clock(count, count_rate, count_max)
count_trunc = iscale*(count/iscale)
count4 = count - count_trunc + mytile *( i1+nx_full*(j1-1)) ! no need to multply by 7 since time will be different in sgs
else
count4 = mod((iseed_ca*nf+mytile)*(i1+nx_full*(j1-1))+ 2147483648_8, 4294967296_8) - 2147483648_8
endif
noise_b(i,j)=real(random_01_CB(kstep,count4),kind=8)
enddo
enddo
do j=1,nyc
do i=1,nxc
if(board(i,j,nf) == 0 .and. noise_b(i,j)>0.90 )then
newseed(i,j) = 1
endif
board(i,j,nf) = board(i,j,nf) + newseed(i,j)
enddo
enddo
endif
!Step 3: Evolve CA
do it = 1,spinup
CA=0
neighbours=0
birth=0
newcell=0
board_halo=0
!--- copy board into the halo-augmented board_halo
board_halo(1+halo:nxc+halo,1+halo:nyc+halo,1) = real(board(1:nxc,1:nyc,1),kind=8)
! write(1000+mpp_pe(),*) "board_halo pre: ",board_halo(20,1:50,1)
!--- perform halo update
call atmosphere_scalar_field_halo (board_halo, halo, nxch, nych, 1, &
iscnx, iecnx, jscnx, jecnx, &
nxncells, nyncells, domain_sgs)
!--- output data to ensure proper update
!write(1000+mpp_pe(),*) "board_halo post: ",board_halo(20,1:50,1)
!--- Count the neighbours
do j=1,nyc
do i=1,nxc
ih=i+halo
jh=j+halo
neighbours(i,j)=board_halo(ih-1,jh-1,1)+board_halo(ih-1,jh,1)+ &
board_halo(ih-1,jh+1,1)+board_halo(ih,jh+1,1)+board_halo(ih+1,jh+1,1)+&
board_halo(ih+1,jh,1)+board_halo(ih+1,jh-1,1)+board_halo(ih,jh-1,1)
enddo
enddo
!--- Check rules;
!birth
do j=1,nyc
do i=1,nxc
if((neighbours(i,j) == 3 .or. neighbours(i,j) == 2))then
birth(i,j)=1
endif
enddo
enddo
!death
do j=1,nyc
do i=1,nxc
if(neighbours(i,j) < 2 .or. neighbours(i,j) > 3)then
lives(i,j,nf)=lives(i,j,nf) - 1
endif
enddo
enddo
do j=1,nyc
do i=1,nxc
if(lives(i,j,nf) < 0)then
lives(i,j,nf)=0
endif
enddo
enddo
do j=1,nyc
do i=1,nxc
if(birth(i,j)==1 .and. lives(i,j,nf)==0)then
newcell(i,j)=1
endif
enddo
enddo
do j=1,nyc
do i=1,nxc
lives(i,j,nf)=lives(i,j,nf)+newcell(i,j)*ilives_in(i,j,nf)
enddo
enddo
do j=1,nyc
do i=1,nxc
if(neighbours(i,j)==3 .or. (board(i,j,nf)==1 .and. neighbours(i,j)==2))then
board(i,j,nf)=1
else
board(i,j,nf)=0
endif
enddo
enddo
enddo !spinup
!ADVECTION OF CA CELLS:
!Let the CFL criteria limit the maximum wind speed, such that the
!advection (distance) of a single CA cell does not move outside the
!Halo region
if(ca_advect)then
do j=1,nyc
do i=1,nxc
dyhigh(i,j)=dxhigh(i,j)
umax(i,j)=((dxhigh(i,j))*halo)/dt
vmax(i,j)=((dyhigh(i,j))*halo)/dt
enddo
enddo
umin(:,:) = -1.0*umax(:,:)
vmin(:,:) = -1.0*vmax(:,:)
do j=1,nyc
do i=1,nxc
uhigh(i,j)=MIN(uhigh(i,j),umax(i,j))
vhigh(i,j)=MIN(vhigh(i,j),vmax(i,j))
uhigh(i,j)=MAX(uhigh(i,j),umin(i,j))
vhigh(i,j)=MAX(vhigh(i,j),vmin(i,j))
enddo
enddo
!Move CA cells in direction of the wind
adlives_halo(:,:)=0.
adgrid_halo(:,:)=0.
do j=1,nyc
do i=1,nxc
ih=i+halo
jh=j+halo
Xn=ih+nint((uhigh(i,j)/dxhigh(i,j))*dt)
Yn=jh+nint((vhigh(i,j)/dyhigh(i,j))*dt)
adgrid_halo(Xn,Yn)=adgrid_halo(Xn,Yn)+board(i,j,nf)
adlives_halo(Xn,Yn)=adlives_halo(Xn,Yn)+lives(i,j,nf)
enddo
enddo
call atmosphere_scalar_field_halo (adgrid_halo, halo, nxch, nych, 1, &
iscnx, iecnx, jscnx, jecnx, &
nxncells, nyncells, domain_sgs)
call atmosphere_scalar_field_halo (adlives_halo, halo, nxch, nych, 1, &
iscnx, iecnx, jscnx, jecnx, &
nxncells, nyncells, domain_sgs)
!--- copy the advected fields from the halo-augmented fields
adgrid(1:nxc,1:nyc) = nint(adgrid_halo(1+halo:nxc+halo,1+halo:nyc+halo))
adlives(1:nxc,1:nyc) = nint(adlives_halo(1+halo:nxc+halo,1+halo:nyc+halo))
do j=1,nyc
do i=1,nxc
lives(i,j,nf)=0.
board(i,j,nf)=0.
lives(i,j,nf)=adlives(i,j)
if(adgrid(i,j)>=1)then
board(i,j,nf)=1
endif
enddo
enddo
endif !advection
!COARSE-GRAIN BACK TO NWP GRID
inci=ncells
incj=ncells
sub=ncells-1
ncells2inv=real(1.0/(ncells*ncells))
DO j=1,nlat
DO i=1,nlon
CA(i,j)=(SUM(lives(inci-sub:inci,incj-sub:incj,nf)))*ncells2inv
inci=inci+ncells
ENDDO
inci=ncells
incj=incj+ncells
ENDDO
if(nca_plumes) then
!COMPUTE NUMBER OF CLUSTERS (CONVECTIVE PLUMES) IN EACH CA-CELL
!Note, at the moment we only use the count of the plumes found in a grid-cell
!In the future the routine "plumes" can also be used to give the size of
!each individual plume for better coupling to the convection scheme.
temp=0
do j=1,nyc
do i=1,nxc
if(lives(i,j,1) > 0)then
temp(i,j)=1
endif
enddo
enddo
kend=ceiling((ncells*ncells)/2.)
if (.not. allocated(V))then
allocate(V(kend))
endif
if (.not. allocated(L))then
allocate(L(kend))
endif
if (.not. allocated(B))then
allocate(B(kend))
endif
if (.not. allocated(AG))then
allocate(AG(ncells,ncells))
endif
ca_plumes(:,:)=0
inci=ncells
incj=ncells
sub=ncells-1
DO j=1,nlat
DO i=1,nlon
B(:)=0
L(:)=0
V(:)=0
onegrid(1:ncells,1:ncells)=temp(inci-sub:inci,incj-sub:incj)
call plumes(V,L,AG,onegrid,ncells,ncells,kend)
do k=1,kend
if(V(k)==1)then
B(k)=L(k) !to avoid considering clusters of 0
endif
enddo
ca_plumes(i,j)=MAXVAL(B(1:kend))
inci=inci+ncells
ENDDO
inci=ncells
incj=incj+ncells
ENDDO
else
ca_plumes(:,:)=0.
endif ! nca_plumes
end subroutine update_cells_sgs
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
subroutine update_cells_global(kstep,halo,first_time_step,iseed_ca,restart,nca,nxc,nyc,nxch,nych,nlon,nlat,isc,iec,jsc,jec, &
npx,npy,CA,iini_g,ilives_g, &
nlives,ncells,nfracseed,nseed,nspinup,nf,mytile)
implicit none
integer, intent(in) :: kstep,nxc,nyc,nlon,nlat,nxch,nych,nca,isc,iec,jsc,jec,npx,npy
integer, intent(in) :: iini_g(nxc,nyc,nca), ilives_g(nxc,nyc)
integer(8), intent(in) :: iseed_ca
real, intent(out) :: CA(nlon,nlat)
logical, intent(in) :: first_time_step
logical, intent(in) :: restart
integer, intent(in) :: nlives, ncells, nseed, nspinup, nf
real, intent(in) :: nfracseed
integer, intent(in) :: mytile, halo
integer,allocatable :: V(:),L(:)
integer :: inci, incj, i, j, k ,sub,spinup,it,k_in,isize,jsize
integer :: ih, jh,kend
real, allocatable :: board_halo(:,:,:)
integer, dimension(nxc,nyc) :: neighbours, birth, thresh
integer, dimension(nxc,nyc) :: newcell, temp,newseed
real, dimension(nxc,nyc) :: noise_b
integer(8) :: count, count_rate, count_max, count_trunc
integer :: count4
integer(8) :: nx_full,ny_full
integer(8) :: iscale = 10000000000
integer*8 :: i1,j1
!-------------------------------------------------------------------------------------------------
isize=nlon+2*halo
jsize=nlat+2*halo
k_in=1
if (.not. allocated(board_g)) allocate(board_g(nxc,nyc,nca))
if (.not. allocated(lives_g)) allocate(lives_g(nxc,nyc,nca))
if (.not. allocated(board_halo)) allocate(board_halo(nxch,nych,1))
if(first_time_step .and. cold_start_ca_global)then
do j=1,nyc
do i=1,nxc
board_g(i,j,nf) = iini_g(i,j,nf)
lives_g(i,j,nf) = ilives_g(i,j)*iini_g(i,j,nf)
enddo
enddo
endif
!Seed with new CA cells at each nseed step
newseed=0
if(mod(kstep,nseed) == 0)then
nx_full=int(npx-1,kind=8)
ny_full=int(npy-1,kind=8)
!random numbers:
do j=1,nyc
j1=j+(jsc-1)*ncells
do i=1,nxc
i1=i+(isc-1)*ncells
if (iseed_ca <= 0) then
!call system_clock(count, count_rate, count_max)
count_trunc = iscale*(count/iscale)
count4 = count - count_trunc + mytile *( i1+nx_full*(j1-1)) ! no need to multply by 7 since time will be different in sgs
else
count4 = mod(iseed_ca*nf+(7*mytile)*(i1+nx_full*(j1-1))+ 2147483648_8, 4294967296_8) - 2147483648_8
endif
noise_b(i,j)=real(random_01_CB(kstep,count4),kind=8)
enddo
enddo
do j=1,nyc
do i=1,nxc
if(board_g(i,j,nf) == 0 .and. noise_b(i,j)>0.75 )then
newseed(i,j)=1
endif
board_g(i,j,nf) = board_g(i,j,nf) + newseed(i,j)
enddo
enddo
endif
if(first_time_step .and. cold_start_ca_global)then
spinup=nspinup
else
spinup = 1
endif
do it=1,spinup
!Step 2 - Initialize variables to 0 and extract the halo
neighbours=0
birth=0
newcell=0
CA=0
board_halo=0
!The input to scalar_field_halo needs to be 1D.
!take the updated board_g fields and extract the halo
! in order to have updated values in the halo region.
!--- copy board into the halo-augmented board_halo
board_halo(1+halo:nxc+halo,1+halo:nyc+halo,1) = real(board_g(1:nxc,1:nyc,nf),kind=8)
!write(1000+mpp_pe(),*) "board_halo pre: ",board_halo(:,:,1)
!--- perform halo update
call atmosphere_scalar_field_halo (board_halo, halo, nxch, nych, 1, &
iscnx_g, iecnx_g, jscnx_g, jecnx_g, &
nxncells_g, nyncells_g, domain_global)
do j=1,nyc
do i=1,nxc
ih=i+halo
jh=j+halo
neighbours(i,j)=board_halo(ih-1,jh-1,1)+board_halo(ih-1,jh,1)+ &
board_halo(ih-1,jh+1,1)+board_halo(ih,jh+1,1)+board_halo(ih+1,jh+1,1)+&
board_halo(ih+1,jh,1)+board_halo(ih+1,jh-1,1)+board_halo(ih,jh-1,1)
enddo
enddo
do j=1,nyc
do i=1,nxc
if(neighbours(i,j)==2 .or. neighbours(i,j)==3)then
birth(i,j)=1
endif
enddo
enddo
do j=1,nyc
do i=1,nxc
if(neighbours(i,j)<2 .or. neighbours(i,j)>3)then
lives_g(i,j,nf)=lives_g(i,j,nf) - 1
endif
enddo
enddo
do j=1,nyc
do i=1,nxc
if(lives_g(i,j,nf)<0)then
lives_g(i,j,nf)=0
endif
enddo
enddo
do j=1,nyc
do i=1,nxc
if(birth(i,j)==1 .and. lives_g(i,j,nf)==0)then
newcell(i,j)=1
endif
enddo
enddo
do j=1,nyc
do i=1,nxc
lives_g(i,j,nf)=lives_g(i,j,nf)+newcell(i,j)*ilives_g(i,j)
enddo
enddo
do j=1,nyc
do i=1,nxc
if( (board_g(i,j,nf) ==1 .and. (neighbours(i,j)==3 .or. neighbours(i,j)==2) ).or. (board_g(i,j,nf)==0 .and. neighbours(i,j)==3) )then
board_g(i,j,nf)=1
else
board_g(i,j,nf)=0
endif
enddo
enddo
enddo !spinup
!COARSE-GRAIN BACK TO NWP GRID
inci=ncells
incj=ncells
sub=ncells-1
DO j=1,nlat
DO i=1,nlon
CA(i,j)=(SUM(lives_g(inci-sub:inci,incj-sub:incj,nf)))/real(ncells*ncells)
inci=inci+ncells
ENDDO
inci=ncells
incj=incj+ncells
ENDDO
end subroutine update_cells_global
!================================
! This subroutine is copied from FMS/test_fms/test_mpp_domains.F90
! and modified to make it simpler to use.
! domain_decomp in fv_mp_mod.F90 does something similar, but it does a
! few other unnecessary things (and requires more arguments).
subroutine define_cubic_mosaic(domain, ni, nj, layout, pe_start, pe_end, halo, ntiles, xextent, yextent)
type(domain2d), intent(inout) :: domain
integer, intent(in) :: ni, nj, ntiles, xextent(:,:), yextent(:,:)
integer, intent(in) :: layout(:)
integer, intent(in) :: pe_start(:), pe_end(:)
integer, intent(in) :: halo
!--- local variables
integer,allocatable :: global_indices(:,:), layout2D(:,:)
integer,allocatable :: istart1(:), iend1(:), jstart1(:), jend1(:), tile1(:)
integer,allocatable :: istart2(:), iend2(:), jstart2(:), jend2(:), tile2(:)
integer :: num_contact
integer :: i
if(size(layout) .NE. 2) call mpp_error(FATAL, &
"define_cubic_mosaic: size of layout should be 2")
if(ntiles==6)then
num_contact = 12
allocate(global_indices(4,ntiles))
allocate(layout2D(2,ntiles))
allocate(istart1(num_contact), iend1(num_contact), jstart1(num_contact), jend1(num_contact), tile1(num_contact) )
allocate(istart2(num_contact), iend2(num_contact), jstart2(num_contact), jend2(num_contact), tile2(num_contact) )
do i = 1, ntiles
layout2D(:,i) = layout(:)
global_indices(1,i) = 1
global_indices(2,i) = ni
global_indices(3,i) = 1
global_indices(4,i) = nj
enddo
!--- Contact line 1, between tile 1 (EAST) and tile 2 (WEST)
tile1(1) = 1; tile2(1) = 2
istart1(1) = ni; iend1(1) = ni; jstart1(1) = 1; jend1(1) = nj
istart2(1) = 1; iend2(1) = 1; jstart2(1) = 1; jend2(1) = nj
!--- Contact line 2, between tile 1 (NORTH) and tile 3 (WEST)
tile1(2) = 1; tile2(2) = 3
istart1(2) = 1; iend1(2) = ni; jstart1(2) = nj; jend1(2) = nj
istart2(2) = 1; iend2(2) = 1; jstart2(2) = nj; jend2(2) = 1
!--- Contact line 3, between tile 1 (WEST) and tile 5 (NORTH)
tile1(3) = 1; tile2(3) = 5
istart1(3) = 1; iend1(3) = 1; jstart1(3) = 1; jend1(3) = nj
istart2(3) = ni; iend2(3) = 1; jstart2(3) = nj; jend2(3) = nj
!--- Contact line 4, between tile 1 (SOUTH) and tile 6 (NORTH)
tile1(4) = 1; tile2(4) = 6
istart1(4) = 1; iend1(4) = ni; jstart1(4) = 1; jend1(4) = 1
istart2(4) = 1; iend2(4) = ni; jstart2(4) = nj; jend2(4) = nj
!--- Contact line 5, between tile 2 (NORTH) and tile 3 (SOUTH)
tile1(5) = 2; tile2(5) = 3
istart1(5) = 1; iend1(5) = ni; jstart1(5) = nj; jend1(5) = nj
istart2(5) = 1; iend2(5) = ni; jstart2(5) = 1; jend2(5) = 1
!--- Contact line 6, between tile 2 (EAST) and tile 4 (SOUTH)
tile1(6) = 2; tile2(6) = 4
istart1(6) = ni; iend1(6) = ni; jstart1(6) = 1; jend1(6) = nj
istart2(6) = ni; iend2(6) = 1; jstart2(6) = 1; jend2(6) = 1
!--- Contact line 7, between tile 2 (SOUTH) and tile 6 (EAST)
tile1(7) = 2; tile2(7) = 6
istart1(7) = 1; iend1(7) = ni; jstart1(7) = 1; jend1(7) = 1
istart2(7) = ni; iend2(7) = ni; jstart2(7) = nj; jend2(7) = 1
!--- Contact line 8, between tile 3 (EAST) and tile 4 (WEST)
tile1(8) = 3; tile2(8) = 4
istart1(8) = ni; iend1(8) = ni; jstart1(8) = 1; jend1(8) = nj
istart2(8) = 1; iend2(8) = 1; jstart2(8) = 1; jend2(8) = nj
!--- Contact line 9, between tile 3 (NORTH) and tile 5 (WEST)
tile1(9) = 3; tile2(9) = 5
istart1(9) = 1; iend1(9) = ni; jstart1(9) = nj; jend1(9) = nj
istart2(9) = 1; iend2(9) = 1; jstart2(9) = nj; jend2(9) = 1
!--- Contact line 10, between tile 4 (NORTH) and tile 5 (SOUTH)
tile1(10) = 4; tile2(10) = 5
istart1(10) = 1; iend1(10) = ni; jstart1(10) = nj; jend1(10) = nj
istart2(10) = 1; iend2(10) = ni; jstart2(10) = 1; jend2(10) = 1
!--- Contact line 11, between tile 4 (EAST) and tile 6 (SOUTH)
tile1(11) = 4; tile2(11) = 6
istart1(11) = ni; iend1(11) = ni; jstart1(11) = 1; jend1(11) = nj
istart2(11) = ni; iend2(11) = 1; jstart2(11) = 1; jend2(11) = 1
!--- Contact line 12, between tile 5 (EAST) and tile 6 (WEST)
tile1(12) = 5; tile2(12) = 6
istart1(12) = ni; iend1(12) = ni; jstart1(12) = 1; jend1(12) = nj
istart2(12) = 1; iend2(12) = 1; jstart2(12) = 1; jend2(12) = nj
else if(ntiles==1) then !Single tile
num_contact = 0
allocate(global_indices(4,ntiles))
allocate(layout2D(2,ntiles))
allocate(istart1(num_contact+1), iend1(num_contact+1), jstart1(num_contact+1), jend1(num_contact+1), tile1(num_contact+1) )
allocate(istart2(num_contact+1), iend2(num_contact+1), jstart2(num_contact+1), jend2(num_contact+1), tile2(num_contact+1) )
do i = 1, ntiles
layout2D(:,i) = layout(:)
global_indices(1,i) = 1
global_indices(2,i) = ni
global_indices(3,i) = 1
global_indices(4,i) = nj
enddo
else
call mpp_error(FATAL, &
"ntiles should be either 6 or 1 to run cellular automata")
endif !global or regional domain
call mpp_define_mosaic(global_indices, layout2D, domain, ntiles, &
num_contact, tile1, tile2, istart1, iend1, jstart1, jend1, &
istart2, iend2, jstart2, jend2, pe_start, pe_end, symmetry=.true., &
whalo=halo, ehalo=halo, shalo=halo, nhalo=halo,name='CA cubic mosaic', &
xextent=xextent, yextent=yextent)
deallocate(global_indices)
deallocate(layout2D)
deallocate(istart1, iend1, jstart1, jend1, tile1)
deallocate(istart2, iend2, jstart2, jend2, tile2)
end subroutine define_cubic_mosaic
end module update_ca