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Copy pathmodule_io.f90
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3755 lines (2665 loc) · 95.6 KB
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MODULE module_io
use module_parallel
implicit none
CONTAINS
!******************************************************************************************************
subroutine READINITIAL(n2,n3,is,ie,js,je,soiltxt,topo,fdepth,landmask,filesoil,filetopo,filef)
use netcdf
integer :: n2,n3,is,ie,js,je,i,j,irec,iun,k,n
integer, dimension(2,is:ie,js:je) :: soiltxt
integer, dimension(is:ie,js:je) :: landmask
real, dimension(is:ie,js:je) :: var,topo,fdepth
integer :: tag,req(numtasks-2),stats(MPI_STATUS_SIZE,numtasks-2),request
integer :: ncid,varid,statusnc
character (len = *) :: filesoil,filetopo,filef
real*4, allocatable :: varreadbig(:,:)
real, allocatable :: varread(:,:)
!gmmread in soil textures
do k=1,2
if(pid.eq.0)then
write(6,*)'ready to read soil textures ',k
iun=42
open(iun,file=filesoil &
! open(iun,file='/home/usc/fm/gmm/mnt/store/GLOBALWTD/sciencepaper/sa_soil.dat'
! &
,form='unformatted',convert='little_endian',access='direct',recl=4*n2big*n3big)
irec=0
allocate(varreadbig(n2big,n3big))
allocate(varread(n2,n3))
write(6,*)'reading soil textures ',k
irec=irec+1
irec=1 !for now
read(iun,rec=irec) ((varreadbig(i,j),i=1,n2big),j=1,n3big)
! statusnc = nf90_open(filesoil, 0, ncid)
! if (statusnc .ne. nf90_noerr) call handle_err(statusnc)
! statusnc = nf90_inq_varid(ncid,'STXT',varid)
! if (statusnc .ne. nf90_noerr) call handle_err(statusnc)
! statusnc = nf90_get_var(ncid,varid,varreadbig)!,start,count)
! if (statusnc .ne. nf90_noerr) call handle_err(statusnc)
! statusnc = nf90_close(ncid)
! if (statusnc .ne. nf90_noerr) call handle_err(statusnc)
varread(1:n2,1:n3)=varreadbig(nw:ne,ns:nn)
write(6,*)'sending soil textures to nodes',k
do n=1,numtasks-2
call MPI_isend(varread(1,1),1,arraysection(n),n,50+k,MPI_COMM_WORLD,req(n),ierr)
enddo
if(numtasks.eq.1)then
do j=js,je
do i=is,ie
soiltxt(k,i,j)=nint(varread(i,j))
enddo
enddo
else
call MPI_waitall(numtasks-2,req,stats,ierr)
endif
deallocate(varread,varreadbig)
close(iun)
elseif(pid.lt.numtasks-1)then
call MPI_irecv(var(is,js),1,domblock(pid),0,50+k,MPI_COMM_WORLD,request,ierr)
call MPI_wait(request,status,ierr)
soiltxt(k,:,:)=nint(var(:,:))
endif
enddo
where(soiltxt.eq.0)soiltxt=5
!gmmread in topo
if(pid.eq.0)then
write(6,*)'sending topo to nodes'
iun=52
! open(iun,file='/home/usc/fm/gmm/mnt/store/GLOBALWTD/sciencepaper/sa_topo4.dat' &
open(iun,file=filetopo&
! ,form='unformatted',convert='little_endian',access='direct',recl=4*n2big*n3big)
,form='unformatted',convert='big_endian',access='direct',recl=4*n2big*n3big)
! irec=1
irec=9
allocate(varreadbig(n2big,n3big))
allocate(varread(n2,n3))
read(iun,rec=irec) ((varreadbig(i,j),i=1,n2big),j=1,n3big)
varread(1:n2,1:n3)=varreadbig(nw:ne,ns:nn)
do n=1,numtasks-2
call MPI_isend(varread(1,1),1,arraysection(n),n,23,MPI_COMM_WORLD,req(n),ierr)
enddo
if(numtasks.eq.1)then
do j=js,je
do i=is,ie
topo(i,j)=varread(i,j)
enddo
enddo
else
call MPI_waitall(numtasks-2,req,stats,ierr)
endif
deallocate(varread,varreadbig)
close(iun)
elseif(pid.lt.numtasks-1)then
call MPI_irecv(topo(is:ie,js:je),1,domblock(pid),0,23,MPI_COMM_WORLD,request,ierr)
call MPI_wait(request,status,ierr)
endif
landmask=1
where(topo.lt.-1.e5)landmask=0
where(topo.lt.-1.e5)topo=0.
!gmmread in fdepth
if(pid.eq.0)then
write(6,*)'sending fdepth to nodes'
! iun=62
! open(iun,file=filef&
! ,form='unformatted',convert='little_endian',access='direct',recl=4*n2big*n3big)
! irec=1
allocate(varreadbig(n2big,n3big))
allocate(varread(n2,n3))
! read(iun,rec=irec) ((varreadbig(i,j),i=1,n2big),j=1,n3big)
statusnc = nf90_open(filef, 0, ncid)
if (statusnc .ne. nf90_noerr) call handle_err(statusnc)
statusnc = nf90_inq_varid(ncid,'F',varid)
if (statusnc .ne. nf90_noerr) call handle_err(statusnc)
statusnc = nf90_get_var(ncid,varid,varreadbig)!,start,count)
if (statusnc .ne. nf90_noerr) call handle_err(statusnc)
statusnc = nf90_close(ncid)
if (statusnc .ne. nf90_noerr) call handle_err(statusnc)
varread(1:n2,1:n3)=varreadbig(nw:ne,ns:nn)
where(varread.le.0.)varread=100.
do n=1,numtasks-2
call MPI_isend(varread(1,1),1,arraysection(n),n,33,MPI_COMM_WORLD,req(n),ierr)
enddo
if(numtasks.eq.1)then
do j=js,je
do i=is,ie
fdepth(i,j)=varread(i,j)
enddo
enddo
else
call MPI_waitall(numtasks-2,req,stats,ierr)
endif
deallocate(varread,varreadbig)
close(iun)
elseif(pid.lt.numtasks-1)then
call MPI_irecv(fdepth(is:ie,js:je),1,domblock(pid),0,33,MPI_COMM_WORLD,request,ierr)
call MPI_wait(request,status,ierr)
endif
where(fdepth.lt.1.e-6)fdepth=100.
end subroutine readinitial
! ******************************************************************
subroutine READLATLON(n2,n3,is,ie,js,je,lats,lons,area,dx,swlat,swlon)
integer :: n2,n3,is,ie,js,je,i,j,ii,jj
real, dimension(is:ie,js:je):: lats,lons,area
real :: swlat,swlon,xswlat,xswlon,dx,dy,rr,pii,deg2rad,xn,xs
!dx=1./120.
!xswlat=-55.9958333333333 + float(ns-1)*dx
!xswlon=-92.9958333333333 + float(nw-1)*dx !+ 360.
xswlat=swlat + float(ns-1)*dx
xswlon=swlon + float(nw-1)*dx !+ 360.
if(xswlon.gt.180.)xswlon=xswlon-360.
do j=js,je
do i=is,ie
lats(i,j)=xswlat + float(j-1)*dx
enddo
enddo
do j=js,je
do i=is,ie
lons(i,j)=xswlon + float(i-1)*dx
if(lons(i,j).gt.180.)lons(i,j)=lons(i,j)-360.
enddo
enddo
rr=6370997.
pii=4.*atan(1.)
deg2rad=pii/180.
dy=rr*deg2rad*dx
do j=js,je
do i=is,ie
xn=(lats(i,j) + 0.5*dx)*deg2rad
xs=(lats(i,j) - 0.5*dx)*deg2rad
area(i,j)=(sin(xn)-sin(xs))*dy*rr
enddo
enddo
end subroutine readlatlon
!******************************************************************************************************
subroutine READWTD(n2,n3,is,ie,js,je,wtd)
integer :: n2,n3,is,ie,js,je,i,j,irec,iun,k,n
real, dimension(is:ie,js:je) :: wtd
integer :: tag,req(numtasks-2),stats(MPI_STATUS_SIZE,numtasks-2),request
real, allocatable :: varread(:,:),varreadbig(:,:)
if(pid.eq.0)then
write(6,*)'sending wtd to nodes'
iun=2
open(iun,file='/mnt/EMC/Store_uscfm/uscfmgmm/GLOBALWTD/sciencepaper/ncfileshaibin_newrun/sa_ewtd4.dat' &
,form='unformatted',convert='big_endian',access='direct',recl=4*n2big*n3big)
irec=1
allocate(varreadbig(n2big,n3big))
allocate(varread(n2,n3))
read(iun,rec=irec) ((varreadbig(i,j),i=1,n2big),j=1,n3big)
varread(1:n2,1:n3)=min(-varreadbig(nw:ne,ns:nn),0.)
do n=1,numtasks-2
call MPI_isend(varread(1,1),1,arraysection(n),n,53,MPI_COMM_WORLD,req(n),ierr)
enddo
if(numtasks.eq.1)then
do j=js,je
do i=is,ie
wtd(i,j)=varread(i,j)
enddo
enddo
else
call MPI_waitall(numtasks-2,req,stats,ierr)
endif
deallocate(varread,varreadbig)
close(iun)
elseif(pid.lt.numtasks-1)then
call MPI_irecv(wtd(is:ie,js:je),1,domblock(pid),0,53,MPI_COMM_WORLD,request,ierr)
call MPI_wait(request,status,ierr)
endif
end subroutine readwtd
!******************************************************************************************************
subroutine READWTDNC(n2,n3,is,ie,js,je,wtd,filewtd)
use netcdf
integer :: n2,n3,is,ie,js,je,i,j,irec,iun,k,n
real, dimension(is:ie,js:je) :: wtd
character (len = *) :: filewtd
integer :: tag,req(numtasks-2),stats(MPI_STATUS_SIZE,numtasks-2),request
real, allocatable :: varread(:,:),varreadbig(:,:)
integer :: ncid,varid,statusnc
!integer :: start(3),count(3)
if(pid.eq.0)then
write(6,*)'sending wtd to nodes'
allocate(varreadbig(n2big,n3big))
allocate(varread(n2,n3))
! start=(/1,1,1/)
! count=(/n2big,n3big,1/)
statusnc = nf90_open(filewtd, 0, ncid)
if (statusnc .ne. nf90_noerr) call handle_err(statusnc)
statusnc = nf90_inq_varid(ncid,'WTD',varid)
if (statusnc .ne. nf90_noerr) call handle_err(statusnc)
statusnc = nf90_get_var(ncid,varid,varreadbig)!,start,count)
if (statusnc .ne. nf90_noerr) call handle_err(statusnc)
statusnc = nf90_close(ncid)
if (statusnc .ne. nf90_noerr) call handle_err(statusnc)
varread(1:n2,1:n3)=min(-varreadbig(nw:ne,ns:nn),0.)
!write(6,*)'mirar veg',varread(100,100),varreadbig(nw+100,n3big*3+100)
do n=1,numtasks-2
call MPI_isend(varread(1,1),1,arraysection(n),n,53,MPI_COMM_WORLD,req(n),ierr)
enddo
if(numtasks.eq.1)then
do j=js,je
do i=is,ie
wtd(i,j)=varread(i,j)
enddo
enddo
else
call MPI_waitall(numtasks-2,req,stats,ierr)
endif
deallocate(varread,varreadbig)
close(iun)
elseif(pid.lt.numtasks-1)then
call MPI_irecv(wtd(is:ie,js:je),1,domblock(pid),0,53,MPI_COMM_WORLD,request,ierr)
call MPI_wait(request,status,ierr)
endif
end subroutine readwtdnc
!******************************************************************************************************
subroutine READVEG(n2,n3,is,ie,js,je,veg,fileveg)
use netcdf
integer :: n2,n3,is,ie,js,je,i,j,irec,iun,k,n
real, dimension(is:ie,js:je) :: veg
character (len = *) :: fileveg
integer :: tag,req(numtasks-2),stats(MPI_STATUS_SIZE,numtasks-2),request
real, allocatable :: varread(:,:),varreadbig(:,:)
integer :: ncid,varid,statusnc
!integer :: start(3),count(3)
if(pid.eq.0)then
write(6,*)'sending veg to nodes'
allocate(varreadbig(n2big,n3big))
allocate(varread(n2,n3))
! start=(/1,1,1/)
! count=(/n2big,n3big,1/)
statusnc = nf90_open(fileveg, 0, ncid)
if (statusnc .ne. nf90_noerr) call handle_err(statusnc)
statusnc = nf90_inq_varid(ncid,'VEG',varid)
if (statusnc .ne. nf90_noerr) call handle_err(statusnc)
statusnc = nf90_get_var(ncid,varid,varreadbig)!,start,count)
if (statusnc .ne. nf90_noerr) call handle_err(statusnc)
statusnc = nf90_close(ncid)
if (statusnc .ne. nf90_noerr) call handle_err(statusnc)
! varread(1:n2,1:n3)=varreadbig(nw:ne,(ns+n3big*3):(nn+n3big*3))
varread(1:n2,1:n3)=varreadbig(nw:ne,ns:nn)
!write(6,*)'mirar veg',varread(100,100),varreadbig(nw+100,n3big*3+100)
do n=1,numtasks-2
call MPI_isend(varread(1,1),1,arraysection(n),n,83,MPI_COMM_WORLD,req(n),ierr)
enddo
if(numtasks.eq.1)then
do j=js,je
do i=is,ie
veg(i,j)=varread(i,j)
enddo
enddo
else
call MPI_waitall(numtasks-2,req,stats,ierr)
endif
deallocate(varread,varreadbig)
close(iun)
elseif(pid.lt.numtasks-1)then
call MPI_irecv(veg(is:ie,js:je),1,domblock(pid),0,83,MPI_COMM_WORLD,request,ierr)
call MPI_wait(request,status,ierr)
endif
end subroutine readveg
!******************************************************************************************************
subroutine READHVEG(n2,n3,is,ie,js,je,hveg,filehveg)
use netcdf
integer :: n2,n3,is,ie,js,je,i,j,irec,iun,k,n
real, dimension(is:ie,js:je) :: hveg
character (len = *) :: filehveg
integer :: tag,req(numtasks-2),stats(MPI_STATUS_SIZE,numtasks-2),request
real, allocatable :: varread(:,:),varreadbig(:,:)
integer :: ncid,varid,statusnc
!integer :: start(3),count(3)
if(pid.eq.0)then
write(6,*)'sending hveg to nodes'
allocate(varreadbig(n2big,n3big))
allocate(varread(n2,n3))
! start=(/1,1,1/)
! count=(/n2big,n3big,1/)
statusnc = nf90_open(filehveg, 0, ncid)
if (statusnc .ne. nf90_noerr) call handle_err(statusnc)
statusnc = nf90_inq_varid(ncid,'HVEG',varid)
if (statusnc .ne. nf90_noerr) call handle_err(statusnc)
statusnc = nf90_get_var(ncid,varid,varreadbig)!,start,count)
if (statusnc .ne. nf90_noerr) call handle_err(statusnc)
statusnc = nf90_close(ncid)
if (statusnc .ne. nf90_noerr) call handle_err(statusnc)
varreadbig=max(varreadbig,0.1)
! varread(1:n2,1:n3)=varreadbig(nw:ne,(ns+n3big*3):(nn+n3big*3))
varread(1:n2,1:n3)=varreadbig(nw:ne,ns:nn)
!write(6,*)'mirar hveg',varread(100,100),varreadbig(nw+100-1,n3big*3+100)
do n=1,numtasks-2
call MPI_isend(varread(1,1),1,arraysection(n),n,83,MPI_COMM_WORLD,req(n),ierr)
enddo
if(numtasks.eq.1)then
do j=js,je
do i=is,ie
hveg(i,j)=varread(i,j)
enddo
enddo
else
call MPI_waitall(numtasks-2,req,stats,ierr)
endif
deallocate(varread,varreadbig)
close(iun)
elseif(pid.lt.numtasks-1)then
call MPI_irecv(hveg(is:ie,js:je),1,domblock(pid),0,83,MPI_COMM_WORLD,request,ierr)
call MPI_wait(request,status,ierr)
endif
end subroutine readhveg
!******************************************************************************************************
subroutine READSMOIEQ(n2,n3,nzg,is,ie,js,je,smoieq,filesmoieq)
use netcdf
integer :: n2,n3,nzg,is,ie,js,je,i,j,irec,iun,k,n
real, dimension(nzg,is:ie,js:je) :: smoieq
real, dimension(is:ie,js:je) :: var
character (len = *) :: filesmoieq
integer :: tag,req(numtasks-2),stats(MPI_STATUS_SIZE,numtasks-2),request
real, allocatable :: varread(:,:),varreadbig(:,:)
integer :: ncid,varid,statusnc
integer :: start(3),count(3)
DO k=1,nzg
if(pid.eq.0)then
write(6,*)'sending smoieq to nodes',k
! allocate(varreadbig(n2big,n3big))
allocate(varread(n2,n3))
statusnc = nf90_open(filesmoieq, 0, ncid)
if (statusnc .ne. nf90_noerr) call handle_err(statusnc)
statusnc = nf90_inq_varid(ncid,'EQSMOI',varid)
if (statusnc .ne. nf90_noerr) call handle_err(statusnc)
start=(/1,1,k/)
! count=(/n2big,n3big,1/)
count=(/n2,n3,1/)
! statusnc = nf90_get_var(ncid,varid,varreadbig,start,count)
statusnc = nf90_get_var(ncid,varid,varread,start,count)
if (statusnc .ne. nf90_noerr) call handle_err(statusnc)
statusnc = nf90_close(ncid)
if (statusnc .ne. nf90_noerr) call handle_err(statusnc)
! varread(1:n2,1:n3)=varreadbig(nw:ne,(ns+n3big*3):(nn+n3big*3))
! varread(1:n2,1:n3)=varreadbig(nw:ne,ns:nn)
do n=1,numtasks-2
call MPI_isend(varread(1,1),1,arraysection(n),n,89,MPI_COMM_WORLD,req(n),ierr)
enddo
if(numtasks.eq.1)then
do j=js,je
do i=is,ie
smoieq(k,i,j)=varread(i,j)
enddo
enddo
else
call MPI_waitall(numtasks-2,req,stats,ierr)
endif
deallocate(varread)!,varreadbig)
elseif(pid.lt.numtasks-1)then
call MPI_irecv(var(is,js),1,domblock(pid),0,89,MPI_COMM_WORLD,request,ierr)
call MPI_wait(request,status,ierr)
smoieq(k,:,:)=var(:,:)
endif
ENDDO
end subroutine readsmoieq
!******************************************************************************************************
subroutine READFLOWDIRECTION(n2,n3,is,ie,js,je,fd,bfd,filerivers)
integer :: n2,n3,is,ie,js,je,i,j,irec,iun,k,n
integer, dimension(is:ie,js:je) :: fd,bfd
real, dimension(is:ie,js:je) :: var
integer :: tag,req(numtasks-2),stats(MPI_STATUS_SIZE,numtasks-2),request
real, allocatable :: varread(:,:),varreadbig(:,:)
character (len = *) :: filerivers
!flow direction
if(pid.eq.0)then
write(6,*)'sending fd to nodes'
iun=2
open(iun,file=filerivers &
,form='unformatted',convert='big_endian',access='direct',recl=4*n2big*n3big)
irec=1
allocate(varreadbig(n2big,n3big))
allocate(varread(n2,n3))
read(iun,rec=irec) ((varreadbig(i,j),i=1,n2big),j=1,n3big)
varread(1:n2,1:n3)=varreadbig(nw:ne,ns:nn)
do n=1,numtasks-2
call MPI_isend(varread(1,1),1,arraysection(n),n,53,MPI_COMM_WORLD,req(n),ierr)
enddo
if(numtasks.eq.1)then
do j=js,je
do i=is,ie
fd(i,j)=nint(varread(i,j))
enddo
enddo
else
call MPI_waitall(numtasks-2,req,stats,ierr)
endif
deallocate(varread,varreadbig)
close(iun)
elseif(pid.lt.numtasks-1)then
call MPI_irecv(var(is,js),1,domblock(pid),0,53,MPI_COMM_WORLD,request,ierr)
call MPI_wait(request,status,ierr)
fd=nint(var)
endif
!now back flow direction
if(pid.eq.0)then
write(6,*)'sending bfd to nodes'
iun=2
open(iun,file=filerivers &
,form='unformatted',convert='big_endian',access='direct',recl=4*n2big*n3big)
irec=10
allocate(varreadbig(n2big,n3big))
allocate(varread(n2,n3))
read(iun,rec=irec) ((varreadbig(i,j),i=1,n2big),j=1,n3big)
varread(1:n2,1:n3)=varreadbig(nw:ne,ns:nn)
do n=1,numtasks-2
call MPI_isend(varread(1,1),1,arraysection(n),n,53,MPI_COMM_WORLD,req(n),ierr)
enddo
if(numtasks.eq.1)then
do j=js,je
do i=is,ie
bfd(i,j)=nint(varread(i,j))
enddo
enddo
else
call MPI_waitall(numtasks-2,req,stats,ierr)
endif
deallocate(varread,varreadbig)
close(iun)
elseif(pid.lt.numtasks-1)then
call MPI_irecv(var(is,js),1,domblock(pid),0,53,MPI_COMM_WORLD,request,ierr)
call MPI_wait(request,status,ierr)
bfd=nint(var)
endif
end subroutine readflowdirection
!******************************************************************************************************
subroutine READRIVERPARAMETERS(n2,n3,is,ie,js,je,var,filerivers,irec)
integer :: n2,n3,is,ie,js,je,i,j,irec,iun,k,n
real, dimension(is:ie,js:je) :: var
integer :: tag,req(numtasks-2),stats(MPI_STATUS_SIZE,numtasks-2),request
real, allocatable :: varread(:,:),varreadbig(:,:)
character (len = *) :: filerivers
!flow direction
if(pid.eq.0)then
write(6,*)'sending river par to nodes',irec
iun=2
open(iun,file=filerivers &
,form='unformatted',convert='big_endian',access='direct',recl=4*n2big*n3big)
allocate(varreadbig(n2big,n3big))
allocate(varread(n2,n3))
read(iun,rec=irec) ((varreadbig(i,j),i=1,n2big),j=1,n3big)
varread(1:n2,1:n3)=varreadbig(nw:ne,ns:nn)
do n=1,numtasks-2
call MPI_isend(varread(1,1),1,arraysection(n),n,53,MPI_COMM_WORLD,req(n),ierr)
enddo
if(numtasks.eq.1)then
do j=js,je
do i=is,ie
var(i,j)=varread(i,j)
enddo
enddo
else
call MPI_waitall(numtasks-2,req,stats,ierr)
endif
deallocate(varread,varreadbig)
close(iun)
elseif(pid.lt.numtasks-1)then
call MPI_irecv(var(is,js),1,domblock(pid),0,53,MPI_COMM_WORLD,request,ierr)
call MPI_wait(request,status,ierr)
endif
end subroutine readriverparameters
! ******************************************************************
subroutine handle_err(statusnc)
use netcdf
integer statusnc
if (statusnc .ne. nf90_noerr) then
! print*, nf_strerror(statusnc)
stop 'Stopped'
endif
end subroutine handle_err
! ******************************************************************
subroutine READHISTORY(n2,n3,is,ie,js,je,nzg,smoi,smoiwtd,intercepstore,wtd,filename)
use netcdf
integer :: n2,n3,is,ie,js,je,nzg,k,irec,i,j,n
real, dimension(nzg,is:ie,js:je) :: smoi
real, dimension(is:ie,js:je) :: var,intercepstore,wtd,smoiwtd
real, allocatable :: varread(:,:)
character*80 :: filename
integer :: tag,request,req(nzg,numtasks-2),stats(MPI_STATUS_SIZE,numtasks-2)
irec=1
if(pid.eq.0)then
open(33,file=filename &
,form='unformatted',convert='big_endian',access='direct',recl=4*n2*n3)
allocate(varread(n2,n3))
DO k=1,nzg
read(33,rec=irec) ((varread(i,j),i=1,n2),j=1,n3)
irec=irec+1
do n=1,numtasks-2
tag=k
call MPI_isend(varread(1,1),1,arraysection(n),n,tag,MPI_COMM_WORLD,req(k,n),ierr)
enddo
if(numtasks.eq.1)then
do j=js,je
do i=is,ie
smoi(k,i,j)=varread(i,j)
enddo
enddo
endif
ENDDO
call MPI_waitall(nzg*(numtasks-2),req,stats,ierr)
deallocate(varread)
close(33)
elseif(pid.lt.numtasks-1)then
DO k=1,nzg
tag=k
call MPI_irecv(var(is,js),1,domblock(pid),0,tag,MPI_COMM_WORLD,request,ierr)
call MPI_wait(request,status,ierr)
smoi(k,:,:)=var(:,:)
ENDDO
endif
end subroutine readhistory
!******************************************************************************************************
subroutine READHISTORYNC(n2,n3,is,ie,js,je,nzg,smoi,smoiwtd,intercepstore,wtd,inactivedays,filename)
use netcdf
integer :: n2,n3,nzg,is,ie,js,je,i,j,irec,iun,k,n
real, dimension(nzg,is:ie,js:je) :: smoi
integer, dimension(0:nzg+1,is:ie,js:je) :: inactivedays
real, dimension(is:ie,js:je) :: smoiwtd,wtd,intercepstore
real, dimension(is:ie,js:je) :: var
integer, dimension(is:ie,js:je) :: varint
character*200 filename
integer :: tag,req(numtasks-2),stats(MPI_STATUS_SIZE,numtasks-2),request
real, allocatable :: varread(:,:),varreadbig(:,:)
integer*2, allocatable :: varreadint(:,:)
integer :: ncid,varid,statusnc
integer :: start(3),count(3)
DO k=1,nzg
if(pid.eq.0)then
write(6,*)'sending smoi to nodes',k
allocate(varreadbig(n2big,n3big))
allocate(varread(n2,n3))
statusnc = nf90_open(filename, 0, ncid)
if (statusnc .ne. nf90_noerr) call handle_err(statusnc)
statusnc = nf90_inq_varid(ncid,'SMOI',varid)
if (statusnc .ne. nf90_noerr) call handle_err(statusnc)
start=(/1,1,k/)
count=(/n2big,n3big,1/)
statusnc = nf90_get_var(ncid,varid,varreadbig,start,count)
if (statusnc .ne. nf90_noerr) call handle_err(statusnc)
statusnc = nf90_close(ncid)
if (statusnc .ne. nf90_noerr) call handle_err(statusnc)
varread(1:n2,1:n3)=varreadbig(nw:ne,ns:nn)
do n=1,numtasks-2
call MPI_isend(varread(1,1),1,arraysection(n),n,89,MPI_COMM_WORLD,req(n),ierr)
enddo
if(numtasks.eq.1)then
do j=js,je
do i=is,ie
smoi(k,i,j)=varread(i,j)
enddo
enddo
else
call MPI_waitall(numtasks-2,req,stats,ierr)
endif
deallocate(varread,varreadbig)
elseif(pid.lt.numtasks-1)then
call MPI_irecv(var(is,js),1,domblock(pid),0,89,MPI_COMM_WORLD,request,ierr)
call MPI_wait(request,status,ierr)
smoi(k,:,:)=var(:,:)
endif
ENDDO
!goto 1000
DO k=0,nzg+1
if(pid.eq.0)then
write(6,*)'sending inactivedasy to nodes',k
allocate(varreadint(n2big,n3big))
allocate(varread(n2,n3))
statusnc = nf90_open(filename, 0, ncid)
if (statusnc .ne. nf90_noerr) call handle_err(statusnc)
statusnc = nf90_inq_varid(ncid,'INACTIVEDAYS',varid)
if (statusnc .ne. nf90_noerr) call handle_err(statusnc)
start=(/1,1,k+1/)
count=(/n2big,n3big,1/)
statusnc = nf90_get_var(ncid,varid,varreadint,start,count)
if (statusnc .ne. nf90_noerr) call handle_err(statusnc)
statusnc = nf90_close(ncid)
if (statusnc .ne. nf90_noerr) call handle_err(statusnc)
varread(1:n2,1:n3)=float(varreadint(nw:ne,ns:nn))
do n=1,numtasks-2
call MPI_isend(varread(1,1),1,arraysection(n),n,899,MPI_COMM_WORLD,req(n),ierr)
enddo
if(numtasks.eq.1)then
do j=js,je
do i=is,ie
inactivedays(k,i,j)=nint(varread(i,j))
enddo
enddo
else
call MPI_waitall(numtasks-2,req,stats,ierr)