subroutine read_restart(params,istep,current_time,osolve,ov,vo,surface,cl,&
                        bcdef,nest)

use definitions
!use mpi

implicit none

include 'mpif.h'

! Passed variables
type (parameters) :: params
integer :: istep
double precision :: current_time
type (octreesolve) :: osolve
type (octreev) :: ov
type (void) :: vo
type (sheet) :: surface(params%ns)
type (cloud) :: cl
type (bc_definition) :: bcdef
type (nest_info) :: nest

! Internal variables
double precision :: junk
integer :: err,i,ires,is,j,k,stat,zisosize
character(len=1) :: answer

! Read required values from the input.txt file
write (*,'(a,a)') 'Reading input file ',trim(params%infile)
params%vex=1.d0
call scanfile (params%infile,'vex',params%vex,ires)
params%isobc=.false.
call scanfile (params%infile,'isobc',answer,ires)  
params%isobc=(trim(answer)=='T') 
params%nest=.false.
call scanfile (params%infile,'nest',answer,ires)  
params%nest=(trim(answer)=='T') 

! Echo values to screen
write (*,'(a,a,a)') 'Input values from ',trim(params%infile),':'
write (*,'(a,e11.4)') 'vex =',params%vex
write (*,'(a,l1)') 'isobc = ',params%isobc
write (*,'(a,l1)') 'nest = ',params%nest

! Open/read restart file
open (9,file=trim(params%restartfile),status='old',form='unformatted')
write (*,'(a,a)') 'Reading restart file ',trim(params%restartfile)
write (*,'(a)') ''
read (9) osolve%noctree,   &
         osolve%nnode,     &
         osolve%nleaves,   &
         osolve%nface,     &
         osolve%nlsf,      &
         cl%np,            &
         current_time

! Massive allocation
allocate (osolve%x(osolve%nnode),stat=err) ; if (err.ne.0) call stop_run ('Error alloc osolve%x in read_restart$')
allocate (osolve%y(osolve%nnode),stat=err) ; if (err.ne.0) call stop_run ('Error alloc osolve%y in read_restart$')
allocate (osolve%z(osolve%nnode),stat=err) ; if (err.ne.0) call stop_run ('Error alloc osolve%z in read_restart$')
allocate (osolve%u(osolve%nnode),stat=err) ; if (err.ne.0) call stop_run ('Error alloc osolve%u in read_restart$')
allocate (osolve%v(osolve%nnode),stat=err) ; if (err.ne.0) call stop_run ('Error alloc osolve%v in read_restart$')
allocate (osolve%w(osolve%nnode),stat=err) ; if (err.ne.0) call stop_run ('Error alloc osolve%w in read_restart$')
allocate (osolve%wiso(osolve%nnode),stat=err) ; if (err.ne.0) call stop_run ('Error alloc osolve%wiso in read_restart$')
allocate (osolve%lsf(osolve%nnode,osolve%nlsf),stat=err) ; if (err.ne.0) call stop_run ('Error alloc osolve%lsf in read_restart$')
allocate (osolve%temp(osolve%nnode),stat=err) ; if (err.ne.0) call stop_run ('Error alloc osolve%temp in read_restart$')
allocate (osolve%strain(osolve%nnode),stat=err) ; if (err.ne.0) call stop_run ('Error alloc osolve%strain in read_restart$')
allocate (osolve%kfix(osolve%nnode*3),stat=err) ; if (err.ne.0) call stop_run ('Error alloc osolve%kfix in read_restart$')
allocate (osolve%kfixt(osolve%nnode),stat=err) ; if (err.ne.0) call stop_run ('Error alloc osolve%kfixt in read_restart$')
allocate (osolve%icon(8,osolve%nleaves),stat=err) ; if (err.ne.0) call stop_run ('Error alloc osolve%icon in read_restart$')
allocate (osolve%pressure(osolve%nleaves),stat=err) ; if (err.ne.0) call stop_run ('Error alloc osolve%pressure in read_restart$') 
allocate (osolve%spressure(osolve%nleaves),stat=err) ; if (err.ne.0) call stop_run ('Error alloc osolve%spressure in read_restart$')
allocate (osolve%crit(osolve%nleaves),stat=err) ; if (err.ne.0) call stop_run ('Error alloc osolve%crit in read_restart$')
allocate (osolve%e2d(osolve%nleaves),stat=err) ; if (err.ne.0) call stop_run ('Error alloc osolve%e2d in read_restart$')
allocate (osolve%eviscosity(osolve%nleaves),stat=err) ; if (err.ne.0) call stop_run ('Error alloc osolve%eviscosity in read_restart$')
allocate (osolve%is_plastic(osolve%nleaves),stat=err) ; if (err.ne.0) call stop_run ('Error alloc osolve%is_plastic in read_restart$')
allocate (osolve%dilatr(osolve%nleaves),stat=err) ; if (err.ne.0) call stop_run ('Error alloc osolve%dilatr in read_restart$')
allocate (osolve%matnum(osolve%nleaves),stat=err) ; if (err.ne.0) call stop_run ('Error alloc osolve%matnum in read_restart$')
allocate (osolve%octree(osolve%noctree),stat=err) ; if (err.ne.0) call stop_run ('Error alloc osolve%octree in read_restart$')
allocate (osolve%iface(9,osolve%nface),stat=err) ; if (err.ne.0) call stop_run ('Error alloc osolve%iface in read_restart$')
allocate (vo%node(osolve%nnode),stat=err) ; if (err.ne.0) call stop_run ('Error alloc vo%node in read_restart$')
allocate (vo%leaf(osolve%nnode),stat=err) ; if (err.ne.0) call stop_run ('Error alloc vo%leaf in read_restart$')
allocate (vo%ftr(osolve%nnode),stat=err) ; if (err.ne.0) call stop_run ('Error alloc vo%ftr in read_restart$')
allocate (vo%rtf(osolve%nnode),stat=err) ; if (err.ne.0) call stop_run ('Error alloc vo%rtf in read_restart$')
allocate (vo%influid(osolve%nnode),stat=err) ; if (err.ne.0) call stop_run ('Error alloc vo%influid in read_restart$')
allocate (vo%face(osolve%nface),stat=err) ; if (err.ne.0) call stop_run ('Error alloc vo%face in read_restart$')
allocate (ov%temporary_nodal_pressure(osolve%nnode),stat=err) ; if (err.ne.0) call stop_run ('Error alloc ov%temp_nodal_pressure in read_restart$')
allocate (ov%whole_leaf_in_fluid(osolve%nleaves),stat=err) ; if (err.ne.0) call stop_run ('Error alloc ov%whole_leaf_in_fluid in read_restart$')
allocate (cl%x(cl%np), stat=err) ; if (err.ne.0) call stop_run ('Error alloc cl%x in read_restart$')
allocate (cl%y(cl%np), stat=err) ; if (err.ne.0) call stop_run ('Error alloc cl%y in read_restart$')
allocate (cl%z(cl%np), stat=err) ; if (err.ne.0) call stop_run ('Error alloc cl%z in read_restart$')
allocate (cl%x0(cl%np), stat=err) ; if (err.ne.0) call stop_run ('Error alloc cl%x0 in read_restart$')
allocate (cl%y0(cl%np), stat=err) ; if (err.ne.0) call stop_run ('Error alloc cl%x0 in read_restart$')
allocate (cl%z0(cl%np), stat=err) ; if (err.ne.0) call stop_run ('Error alloc cl%x0 in read_restart$')
allocate (cl%strain(cl%np), stat=err) ; if (err.ne.0) call stop_run ('Error alloc cl%strain in read_restart$')
allocate (cl%lsf0(cl%np), stat=err) ; if (err.ne.0) call stop_run ('Error alloc cl%lsf0 in read_restart$')
allocate (cl%temp(cl%np), stat=err) ; if (err.ne.0) call stop_run ('Error alloc cl%temp in read_restart$')
allocate (cl%press(cl%np), stat=err) ; if (err.ne.0) call stop_run ('Error alloc cl%press in read_restart$')
allocate (cl%tag(cl%np), stat=err) ; if (err.ne.0) call stop_run ('Error alloc cl%tag in read_restart$')

! Read info for octree solve nodes (x,y,z,u,v,w,lsf,temp)
read (9) (osolve%x(i),                         &
          osolve%y(i),                         &  
          osolve%z(i),                         &
          osolve%u(i),                         &
          osolve%v(i),                         & 
          osolve%w(i),                         &
          osolve%wiso(i),                      &
          (osolve%lsf(i,j),j=1,osolve%nlsf),   &
          osolve%temp(i),                      &
          ov%temporary_nodal_pressure(i),      &
          osolve%strain(i),                    &
          osolve%kfix((i-1)*3+1),              &
          osolve%kfix((i-1)*3+2),              &
          osolve%kfix((i-1)*3+3),              &
          osolve%kfixt(i),                     &
          i=1,osolve%nnode)

! Correct for vertical exaggeration
osolve%z=osolve%z/params%vex

! Read icon array
read (9) ((osolve%icon(j,i),j=1,8),   &
           osolve%pressure(i),        &
           osolve%spressure(i),       &
           osolve%crit(i),            &
           osolve%e2d(i),             &
           osolve%eviscosity(i),      & 
           osolve%is_plastic(i),      &
           osolve%dilatr(i),          &
           osolve%matnum(i),          &
           osolve%yield_ratio(i),     &
           ov%whole_leaf_in_fluid(i), &
           i=1,osolve%nleaves)

! Read octree information
read (9) (osolve%octree(i),i=1,osolve%noctree)

! Read bad face information
read (9) ((osolve%iface(j,i),j=1,9),i=1,osolve%nface)

! Read void information
read (9) (vo%node(i),    &
          vo%leaf(i),    &
          vo%ftr(i),     &
          vo%rtf(i),     &
          vo%influid(i), &
          i=1,osolve%nnode)

! Read bad faces information
read (9) (vo%face(i),i=1,osolve%nface)

! Read surface information (r,s,x,y,z,xn,yn,zn)
do is=1,osolve%nlsf
  read (9) surface(is)%nsurface,surface(is)%activation_time,surface(is)%nt

  allocate (surface(is)%r(surface(is)%nsurface),stat=err) ; if (err.ne.0) call stop_run ('Error alloc surface(is)%r in read_restart$')
  allocate (surface(is)%s(surface(is)%nsurface),stat=err) ; if (err.ne.0) call stop_run ('Error alloc surface(is)%s in read_restart$')
  allocate (surface(is)%x(surface(is)%nsurface),stat=err) ; if (err.ne.0) call stop_run ('Error alloc surface(is)%x in read_restart$')
  allocate (surface(is)%y(surface(is)%nsurface),stat=err) ; if (err.ne.0) call stop_run ('Error alloc surface(is)%y in read_restart$')
  allocate (surface(is)%z(surface(is)%nsurface),stat=err) ; if (err.ne.0) call stop_run ('Error alloc surface(is)%z in read_restart$')
  allocate (surface(is)%xn(surface(is)%nsurface),stat=err) ; if (err.ne.0) call stop_run ('Error alloc surface(is)%xn in read_restart$')
  allocate (surface(is)%yn(surface(is)%nsurface),stat=err) ; if (err.ne.0) call stop_run ('Error alloc surface(is)%yn in read_restart$')
  allocate (surface(is)%zn(surface(is)%nsurface),stat=err) ; if (err.ne.0) call stop_run ('Error alloc surface(is)%zn in read_restart$')
  allocate (surface(is)%u(surface(is)%nsurface),stat=err) ; if (err.ne.0) call stop_run ('Error alloc surface(is)%u in read_restart$')
  allocate (surface(is)%v(surface(is)%nsurface),stat=err) ; if (err.ne.0) call stop_run ('Error alloc surface(is)%v in read_restart$')
  allocate (surface(is)%w(surface(is)%nsurface),stat=err) ; if (err.ne.0) call stop_run ('Error alloc surface(is)%w in read_restart$')
  allocate (surface(is)%icon(3,surface(is)%nt),stat=err) ; if (err.ne.0) call stop_run ('Error alloc surface(is)%icon in read_restart$')

  read (9) (surface(is)%r(i),  &
            surface(is)%s(i),  &
            surface(is)%x(i),  &
            surface(is)%y(i),  &
            surface(is)%z(i),  &
            surface(is)%xn(i), &
            surface(is)%yn(i), &
            surface(is)%zn(i), &
            surface(is)%u(i),  &
            surface(is)%v(i),  &
            surface(is)%w(i),  &
            i=1,surface(is)%nsurface)
  read (9) ((surface(is)%icon(j,i),j=1,3),i=1,surface(is)%nt)

  ! correct surface for vertical exageration
  surface(is)%z=surface(is)%z/params%vex
  surface(is)%zn=surface(is)%zn/params%vex
enddo

! Read cloud information
read (9) (cl%x(i),             &
          cl%y(i),             &
          cl%z(i),             &
          cl%x0(i),            &
          cl%y0(i),            &
          cl%z0(i),            &
          cl%strain(i),        &
          cl%lsf0(i),          &
          cl%temp(i),          &
          cl%press(i),         &
          cl%tag(i),           &
          i=1,cl%np)

! correct for vertical exaggeration
cl%z=cl%z/params%vex
cl%z0=cl%z0/params%vex

! Read isostasy basal displacement array
read (9) zisosize
allocate (bcdef%zisodisp(zisosize+1,zisosize+1), stat=err) ; if (err.ne.0) call stop_run ('Error alloc bcdef%zisodisp in read_restart$')
read (9) ((bcdef%zisodisp(i,j),j=1,zisosize+1),i=1,zisosize+1)
bcdef%zisodisp=bcdef%zisodisp-surface(osolve%nlsf)%sp01

! Read nested model info
if (params%nest) then
  read (9) nest%sselemx,nest%sselemy,nest%sselemz,nest%xminls,nest%yminls,&
           nest%zminls
else
  nest%sselemx=0.d0
  nest%sselemy=0.d0
  nest%sselemz=0.d0
  nest%xminls=0.d0
  nest%yminls=0.d0
  nest%zminls=0.d0
endif

!write (*,*) '******************************************************************'
!write (*,*) 'Reading to EOF'
!write (*,*) '******************************************************************'
!stat=0
!do i=1,1000000
!  read (9,iostat=stat) junk
!  if (stat /= 0) exit
!  write (*,*) junk
!enddo

close (9)

end subroutine read_restart