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|
! Copyright (C) 2006 Imperial College London and others.
!
! Please see the AUTHORS file in the main source directory for a full list
! of copyright holders.
!
! Prof. C Pain
! Applied Modelling and Computation Group
! Department of Earth Science and Engineering
! Imperial College London
!
! amcgsoftware@imperial.ac.uk
!
! This library is free software; you can redistribute it and/or
! modify it under the terms of the GNU Lesser General Public
! License as published by the Free Software Foundation; either
! version 2.1 of the License, or (at your option) any later version.
!
! This library is distributed in the hope that it will be useful,
! but WITHOUT ANY WARRANTY; without even the implied warranty of
! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
! Lesser General Public License for more details.
!
! You should have received a copy of the GNU Lesser General Public
! License along with this library; if not, write to the Free Software
! Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
! USA
#include "fdebug.h"
module adapt_integration
use data_structures
use quadrature
use elements
use fldebug
use fields
use halos
use limit_metric_module
use meshdiagnostics
use node_locking
use spud
use surface_id_interleaving
use tictoc
use vtk_interfaces
implicit none
private
public :: adapt_mesh, max_nodes, adapt_integration_check_options
character(len = *), parameter :: base_path = "/mesh_adaptivity/hr_adaptivity"
#ifdef HAVE_ADAPTIVITY
interface
subroutine adaptmem(nnod, nelm, szenls, nselm, totfre, &
& xpctel, xpctnd, xpctse, &
& metric, szint, szrl)
implicit none
integer, intent(in) :: nnod
integer, intent(in) :: nelm
integer, intent(in) :: szenls
integer, intent(in) :: nselm
integer, intent(in) :: totfre
integer, intent(in) :: xpctel
integer, intent(in) :: xpctnd
integer, intent(in) :: xpctse
logical, intent(in) :: metric
integer, intent(out) :: szint
integer, intent(out) :: szrl
end subroutine adaptmem
subroutine adptvy(intarr, intsiz, rlarr, rlsiz, &
& geom3d, srfgmy, useq, &
& nnod, nelm, nselm, absolutemxnods, &
& szenls, enlbas, enlist, elmreg, &
& clcgmy, szsnls, snlbas, snlist, surfid, &
& prdnds, nprdnd, &
& nodx, nody, nodz, &
& intnnd, intnel, intszl, intenl, intenb, &
& intndx, intndy, intndz, &
& orgmtx, oldfld, nfree, totfre, nfield, &
& xpctel, nwnnod, nwnelm, nwnsel, &
& nwszen, nwszsn, nwsznn, nwndlc, nwsrow, &
& nwenlb, nwenls, nwsnlb, nwsnls, nwsfid, &
& nwelrg, nwnodx, nwnody, nwnodz, &
& newmtx, newfld, &
& biglst, nodlst, &
& dotop, minchg, nsweep, mshopt, twostg, togthr, &
& gather, scater, ngath, nhalo, pnod, &
& atosen, atorec, nproc, debug_level, dbg, chcnsy)
implicit none
integer, intent(in) :: intsiz
integer, dimension(intsiz), intent(out) :: intarr
integer, intent(in) :: rlsiz
real, dimension(rlsiz), intent(out) :: rlarr
logical, intent(in) :: geom3d
logical, intent(in) :: srfgmy
logical, intent(in) :: useq
integer, intent(in) :: nnod
integer, intent(in) :: nelm
integer, intent(in) :: nselm
integer, intent(in) :: absolutemxnods
integer, intent(in) :: szenls
integer, dimension(nelm + 1), intent(in) :: enlbas
integer, dimension(nelm * 4), intent(in) :: enlist
integer, dimension(nelm), intent(in) :: elmreg
logical, intent(in) :: clcgmy
integer, intent(in) :: szsnls
integer, dimension(nselm + 1), intent(in) :: snlbas
integer, dimension(nselm * 3), intent(in) :: snlist
integer, dimension(nselm), intent(in) :: surfid
integer, intent(in) :: nprdnd
integer, dimension(nprdnd), intent(in) :: prdnds
real, dimension(nnod), intent(in) :: nodx
real, dimension(nnod), intent(in) :: nody
real, dimension(nnod), intent(in) :: nodz
integer, intent(in) :: intnnd
integer, intent(in) :: intnel
integer, intent(in) :: intszl
integer, dimension(intnel * 4), intent(in) :: intenl
integer, dimension(intnel + 1), intent(in) :: intenb
real, dimension(intnnd), intent(in) :: intndx
real, dimension(intnnd), intent(in) :: intndy
real, dimension(intnnd), intent(in) :: intndz
real, dimension(nnod * 9), intent(in) :: orgmtx
real, dimension(nfield * nnod), intent(in) :: oldfld
integer, intent(in) :: nfield
integer, intent(in) :: xpctel
integer, dimension(nfield), intent(in) :: nfree
integer, intent(in) :: totfre
integer, intent(out) :: nwnnod
integer, intent(out) :: nwnelm
integer, intent(out) :: nwnsel
integer, intent(out) :: nwszen
integer, intent(out) :: nwszsn
integer, intent(out) :: nwsznn
integer, intent(inout) :: nwndlc
integer, intent(inout) :: nwsrow
integer, intent(out) :: nwenlb
integer, intent(out) :: nwenls
integer, intent(out) :: nwsnlb
integer, intent(out) :: nwsnls
integer, intent(out) :: nwsfid
integer, intent(out) :: nwelrg
integer, intent(out) :: nwnodx
integer, intent(out) :: nwnody
integer, intent(out) :: nwnodz
integer, intent(inout) :: newmtx
integer, intent(out) :: newfld
integer, intent(out) :: biglst
integer, intent(out) :: nodlst
real, intent(in) :: dotop
real, intent(in) :: minchg
integer, intent(in) :: nsweep
logical, dimension(6), intent(in) :: mshopt
logical, intent(in) :: twostg
logical, intent(in) :: togthr
integer, intent(in) :: ngath
integer, dimension(ngath), intent(inout) :: gather
integer, intent(in) :: nhalo
integer, dimension(nhalo), intent(inout) :: scater
integer, intent(inout) :: pnod
integer, intent(in) :: nproc
integer, dimension(nproc + 1), intent(in) :: atosen
integer, dimension(nproc + 1), intent(in) :: atorec
integer, intent(in) :: debug_level
logical, intent(in) :: dbg
logical, intent(in) :: chcnsy
end subroutine adptvy
subroutine mtetin(x, y, z, m, vol, areas, l, radius, qualty)
implicit none
real, dimension(4), intent(in) :: x
real, dimension(4), intent(in) :: y
real, dimension(4), intent(in) :: z
real, dimension(3, 3), intent(in) :: m
real, intent(out) :: vol
real, dimension(4), intent(out) :: areas
real, dimension(6), intent(out) :: l
real, intent(out) :: radius
real, intent(out) :: qualty
end subroutine mtetin
end interface
#endif
contains
subroutine adapt_mesh(input_positions, metric, output_positions, node_ownership, &
& force_preserve_regions, lock_faces)
!!< Adapt the supplied input mesh using libadaptivity. Return the new
!!< adapted mesh in output_positions (which is allocated by this routine).
type(vector_field), intent(in) :: input_positions
type(tensor_field), intent(in) :: metric
type(vector_field), target, intent(out) :: output_positions
!! Map from new nodes to old elements. Allocated by this routine.
integer, dimension(:), pointer, optional :: node_ownership
logical, intent(in), optional :: force_preserve_regions
type(integer_set), intent(in), optional :: lock_faces
! Linear tets only
integer, parameter :: dim = 3, nloc = 4, snloc = 3
! adaptmem arguments
integer :: nnod, nelm, szenls, nselm, totfre, xpctel, xpctnd, xpctse
logical :: have_metric
! adptvy arguments
! Working memory
integer, dimension(:), allocatable :: intarr
integer :: intsiz
real, dimension(:), allocatable :: rlarr
integer :: rlsiz
! Input variables
logical :: geom3d, srfgmy, useq
integer :: absolutemxnods
integer, dimension(:), allocatable, target :: enlbas
integer, dimension(:), pointer :: enlist
integer, dimension(:), allocatable :: elmreg
logical :: clcgmy
integer :: szsnls
integer, dimension(:), allocatable :: snlbas, snlist, surfid, prdnds
integer :: nprdnd
real, dimension(:), pointer :: nodx, nody, nodz
integer :: intnnd, intnel, intszl
integer, dimension(:), pointer :: intenl, intenb
real, dimension(:), pointer :: intndx, intndy, intndz
real, dimension(:), allocatable :: orgmtx
real, dimension(:), allocatable :: oldfld
integer, dimension(:), allocatable :: nfree
integer :: nfield
! Output variables
integer :: nwnnod, nwnelm, nwnsel, nwszen, nwszsn, nwsznn, &
& nwndlc, nwsrow, nwenlb, nwenls, nwsnlb, nwsnls, nwsfid, nwelrg, &
& nwnodx, nwnody, nwnodz, newmtx, newfld, biglst, nodlst
! More input variables
real :: dotop, minchg
integer :: nsweep
logical, dimension(6) :: mshopt
logical :: twostg
logical :: togthr
integer, dimension(:), allocatable :: gather, scater
integer :: ngath, nhalo, pnod
integer, dimension(:), allocatable :: atosen, atorec
integer :: nproc, debug_level
logical :: dbg, chcnsy
integer :: i, max_coplanar_id, nhalos
integer, dimension(:), allocatable :: boundary_ids, coplanar_ids
real :: mestp1
type(halo_type), pointer :: old_halo
type(mesh_type), pointer :: output_mesh
integer, save :: output_quality_index = 0
logical :: output_quality
type(scalar_field) :: quality
type(tensor_field) :: new_metric
! Buffer factor to emulate behaviour of legacy expected elements function
real, parameter :: expected_elements_buffer = 1.2
! Buffer factor for max. nodes
real, parameter :: mxnods_buffer = 1.5
! if we're parallel we'll need to reorder the region ids after the halo derivation
integer, dimension(:), allocatable :: old_new_region_ids, renumber_permutation
ewrite(1, *) "In adapt_mesh"
#ifdef DDEBUG
assert(input_positions%dim == dim)
assert(ele_loc(input_positions, 1) == nloc)
if(surface_element_count(input_positions) > 0) then
assert(associated(input_positions%mesh%faces))
assert(face_loc(input_positions, 1) == snloc)
end if
assert(metric%mesh == input_positions%mesh)
if(present(node_ownership)) then
assert(.not. associated(node_ownership))
end if
#endif
ewrite(2, *) "Forming adaptmem arguments"
nnod = node_count(input_positions) ! Number of nodes
nelm = element_count(input_positions) ! Number of volume elements
szenls = nloc * nelm ! Size of the volume element list
nselm = surface_element_count(input_positions) ! Number of surface elements
totfre = 0 ! Number of fields
xpctel = expected_elements(input_positions, metric) * expected_elements_buffer ! Expected number of volume elements
xpctnd = -1 ! Expected number of nodes
xpctse = -1 ! Expected number of surface elements
have_metric = .true. ! Unknown
! Initialise output variables, just in case they're also used as input
intsiz = 0 ! Integer working memory size
rlsiz = 0 ! Real working memory size
ewrite(1, *) "Calling adaptmem from adapt_mesh"
#ifdef HAVE_ADAPTIVITY
call adaptmem(nnod, nelm, szenls, nselm, totfre, &
& xpctel, xpctnd, xpctse, &
& have_metric, intsiz, rlsiz)
#else
FLExit("Fluidity compiled without libadaptivity support")
#endif
ewrite(1, *) "Exited adaptmem"
ewrite(2, "(a,i0)") "Integer working memory size: ", intsiz
ewrite(2, "(a,i0)") "Real working memory size: ", rlsiz
if(intsiz < 0) then
FLAbort("Invalid integer working memory size")
end if
if(rlsiz < 0) then
FLAbort("Invalid real working memory size")
end if
ewrite(2, *) "Forming remaining adptvy arguments"
! Working memory
allocate(intarr(intsiz)) ! Integer working memory
allocate(rlarr(rlsiz)) ! Real working memory
geom3d = (mesh_dim(input_positions) == 3) ! Whether the domain is 3D
srfgmy = .false. ! Whether the surface mesh should be kept intact during the adapt
useq = .false. ! Unknown
! Maximum number of nodes
absolutemxnods = max_nodes(input_positions, expected_nodes(input_positions, int(xpctel / expected_elements_buffer), global = .false.))
absolutemxnods = absolutemxnods * mxnods_buffer
ewrite(2, "(a,i0)") "Max. nodes: ", absolutemxnods
! Volume element list
allocate(enlbas(nelm + 1))
do i = 1, nelm + 1
enlbas(i) = (i - 1) * nloc
end do
enlist => input_positions%mesh%ndglno
! Region IDs
allocate(elmreg(nelm))
if(associated(input_positions%mesh%region_ids).and.&
(have_option(base_path // "/preserve_mesh_regions").or.present_and_true(force_preserve_regions))) then
elmreg = input_positions%mesh%region_ids
else
elmreg = 0
end if
! Surface element list
clcgmy = .true. ! Is .true. if the geometry should be calculated, and ignore snlist
szsnls = nselm * snloc
allocate(snlbas(nselm + 1))
do i = 1, nselm + 1
snlbas(i) = (i - 1) * snloc
end do
allocate(snlist(nselm * snloc))
if(nselm > 0) then
call getsndgln(input_positions%mesh, snlist)
end if
! Surface IDs
allocate(surfid(nselm))
call interleave_surface_ids(input_positions%mesh, surfid, max_coplanar_id)
! Node locking
if(present(lock_faces)) then
call get_locked_nodes_and_faces(input_positions, lock_faces, prdnds)
else
call get_locked_nodes(input_positions, prdnds)
end if
nprdnd = size(prdnds)
! Coordinates
nodx => input_positions%val(1,:)
nody => input_positions%val(2,:)
nodz => input_positions%val(3,:)
! Interpolation mesh (the same as the input mesh)
intnnd = nnod
intnel = nelm
intszl = szenls
intenl => enlist
intenb => enlbas
intndx => nodx
intndy => nody
intndz => nodz
! Metric
allocate(orgmtx(nnod * dim ** 2))
select case(metric%field_type)
case(FIELD_TYPE_NORMAL)
orgmtx = reshape(metric%val, (/nnod * dim ** 2/))
case default
do i = 1, nnod
orgmtx((i - 1) * dim * dim + 1:i * dim * dim) = reshape(node_val(metric, i), (/dim ** 2/))
end do
end select
! Field data - none, as we don't use libadaptivity for interpolation any
! more
nfield = 0 ! Number of fields
allocate(oldfld(nfield * nnod))
allocate(nfree(nfield))
call get_option(base_path // "/functional_tolerance", mestp1, default = 0.0)
dotop = max(abs(mestp1), 0.15) ! Functional tolerance
minchg = 0.01 ! Unknown
! Number of adapt sweeps
call get_option(base_path // "/adaptivity_library/libadaptivity/sweeps/", &
& nsweep, default = 10)
! Which element operations are we using?
! Split edges if true
mshopt(1) = .not. have_option(base_path // "/adaptivity_library/libadaptivity/disable_edge_split")
! Collapse edges if true
mshopt(2) = .not. have_option(base_path // "/adaptivity_library/libadaptivity/disable_edge_collapse")
! Perform edge to face and edge to edge swapping if true
mshopt(3) = .not. have_option(base_path // "/adaptivity_library/libadaptivity/disable_edge_swap")
! Perform face to edge swapping if true
mshopt(4) = .not. have_option(base_path // "/adaptivity_library/libadaptivity/disable_edge_swap")
mshopt(5) = .true. ! Split elements (do not use this yet)
! In fact, this option is currently ignored and element
! splitting is not performed by libadaptivity
! Move nodes if true
mshopt(6) = .not. have_option(base_path // "/adaptivity_library/libadaptivity/disable_node_movement")
twostg = .false. ! Two stages of adapting, with no refinement on first
togthr = .true. ! Lumps node movement adaptivity in with connectivity
! changes
! Parallel data
nhalos = halo_count(input_positions)
assert(any(nhalos == (/0, 1, 2/)))
if(nhalos > 0) then
old_halo => input_positions%mesh%halos(nhalos)
assert(trailing_receives_consistent(old_halo))
nproc = halo_proc_count(old_halo)
ngath = halo_all_sends_count(old_halo)
allocate(gather(ngath))
allocate(atosen(nproc + 1))
nhalo = halo_all_receives_count(old_halo)
allocate(scater(nhalo))
allocate(atorec(nproc + 1))
call extract_raw_halo_data(old_halo, gather, atosen, scater, atorec, nowned_nodes = pnod)
else
nproc = 1
ngath = 0
allocate(gather(ngath))
allocate(atosen(1))
atosen = 0
nhalo = 0
allocate(scater(nhalo))
allocate(atorec(1))
atorec = 0
pnod = nnod
end if
! Debugging options
debug_level = current_debug_level ! Verbosity
dbg = .false. ! Enable additional run time debugging within adaptivity.
chcnsy = .false. ! This option was for further run time
! consistency checks within adaptivity but it's
! currently disabled.
! Initialise output variables, just in case they're also used as input
nwnnod = 0 ! Number of nodes
nwnelm = 0 ! Number of volume elements
nwnsel = 0 ! Number of surface elements
nwszen = 0 ! Size of the volume element list
nwszsn = 0 ! Size of the surface element list
nwsznn = 0 ! Unknown
!nwndlc = 0 ! Node ownership list (start index in intarr)
!nwsrow = 0 ! Surface element ownership list (start index in intarr)
nwenlb = 0 ! Unknown
nwenls = 0 ! Volume element numbering list (start index in intarr)
nwsnlb = 0 ! Unknown
nwsnls = 0 ! Surface element numbering list (start index in intarr)
nwsfid = 0 ! Surface IDs (start index in intarr)
nwelrg = 0 ! Region IDs (start index in intarr)
nwnodx = 0 ! x-coordinates (start index in rlarr)
nwnody = 0 ! y-coordinates (start index in rlarr)
nwnodz = 0 ! z-coordinates (start index in rlarr)
!newmtx = 0 ! Adaptivity metric (start index in rlarr)
newfld = 0 ! Unknown
biglst = 0 ! Unknown
nodlst = 0 ! Unknown
! Output options
output_quality = have_option(base_path // "/adaptivity_library/libadaptivity/write_adapted_quality")
if(output_quality) then
newmtx = 1 ! Return interpolated metric
else
newmtx = -1 ! Do not return interpolated metric
end if
if(present(node_ownership)) then
nwndlc = 1 ! Return map from new nodes to old elements
else
nwndlc = -1 ! Do not return map from new nodes to old elements
end if
nwsrow = -1 ! Do not return surface element owners
ewrite(1, *) "Calling adptvy from adapt_mesh"
call tic(TICTOC_ID_SERIAL_ADAPT)
#ifdef HAVE_ADAPTIVITY
call adptvy(intarr, intsiz, rlarr, rlsiz, &
& geom3d, srfgmy, useq, &
& nnod, nelm, nselm, absolutemxnods, &
& szenls, enlbas, enlist, elmreg, &
& clcgmy, szsnls, snlbas, snlist, surfid, &
& prdnds, nprdnd, &
& nodx, nody, nodz, &
& intnnd, intnel, intszl, intenl, intenb, &
& intndx, intndy, intndz, &
& orgmtx, oldfld, nfree, totfre, nfield, &
& xpctel, nwnnod, nwnelm, nwnsel, &
& nwszen, nwszsn, nwsznn, nwndlc, nwsrow, &
& nwenlb, nwenls, nwsnlb, nwsnls, nwsfid, &
& nwelrg, nwnodx, nwnody, nwnodz, &
& newmtx, newfld, &
& biglst, nodlst, &
& dotop, minchg, nsweep, mshopt, twostg, togthr, &
& gather, scater, ngath, nhalo, pnod, &
& atosen, atorec, nproc, debug_level, dbg, chcnsy)
#else
FLExit("Fluidity compiled without libadaptivity support")
#endif
call toc(TICTOC_ID_SERIAL_ADAPT)
ewrite(1, *) "Exited adptvy"
if(nwnnod < 0) then
FLAbort("Mesh adaptivity exited with an error")
end if
assert(nwnnod <= absolutemxnods)
assert(nwnelm >= 0)
deallocate(orgmtx)
deallocate(enlbas)
deallocate(elmreg)
deallocate(snlbas)
deallocate(snlist)
deallocate(surfid)
deallocate(prdnds)
deallocate(oldfld)
deallocate(nfree)
ewrite(2, *) "Constructing output positions"
allocate(output_mesh)
call allocate(output_mesh, nwnnod, nwnelm, input_positions%mesh%shape, name = input_positions%mesh%name)
output_mesh%shape%refcount%tagged = .false.
output_mesh%shape%quadrature%refcount%tagged = .false.
output_mesh%ndglno = intarr(nwenls:nwenls + nwszen - 1)
output_mesh%option_path = input_positions%mesh%option_path
! Construct the new positions
call allocate(output_positions, dim, output_mesh, name = input_positions%name)
call deallocate(output_mesh)
deallocate(output_mesh)
output_mesh => output_positions%mesh
call set_all(output_positions, 1, rlarr(nwnodx:nwnodx + nwnnod - 1))
call set_all(output_positions, 2, rlarr(nwnody:nwnody + nwnnod - 1))
call set_all(output_positions, 3, rlarr(nwnodz:nwnodz + nwnnod - 1))
output_positions%option_path = input_positions%option_path
! put the region id info in now so we can reorder it if we're parallel
if(have_option(base_path // "/preserve_mesh_regions")&
.or.present_and_true(force_preserve_regions)) then
allocate(output_mesh%region_ids(nwnelm))
output_mesh%region_ids = intarr(nwelrg:nwelrg + nwnelm - 1)
end if
if(nhalos > 0) then
ewrite(2, *) "Constructing output halos"
allocate(renumber_permutation(nwnelm))
allocate(output_mesh%halos(nhalos))
call form_halo_from_raw_data(output_mesh%halos(nhalos), nproc, gather, atosen, scater, atorec,&
& nowned_nodes = nwnnod - nhalo, create_caches = .true.)
if(nhalos == 2) then
! Derive remaining halos
call derive_l1_from_l2_halo(output_mesh, &
& ordering_scheme = HALO_ORDER_TRAILING_RECEIVES, create_caches = .true.)
allocate(output_mesh%element_halos(2))
call derive_element_halo_from_node_halo(output_mesh, &
& ordering_scheme = HALO_ORDER_GENERAL, create_caches = .false.)
call renumber_positions_elements_trailing_receives(output_positions, permutation=renumber_permutation)
else
allocate(output_mesh%element_halos(1))
call derive_element_halo_from_node_halo(output_mesh, &
& ordering_scheme = HALO_ORDER_GENERAL, create_caches = .false.)
call renumber_positions_elements_trailing_receives(output_positions, permutation=renumber_permutation)
end if
if(have_option(base_path // "/preserve_mesh_regions")&
.or.present_and_true(force_preserve_regions)) then
! reorder the region_ids since all out elements have been jiggled about
allocate(old_new_region_ids(nwnelm))
old_new_region_ids = output_positions%mesh%region_ids
do i = 1, nwnelm
output_positions%mesh%region_ids(renumber_permutation(i)) = old_new_region_ids(i)
end do
deallocate(old_new_region_ids)
end if
deallocate(renumber_permutation)
! Adaptivity is not guaranteed to return halo elements in the same
! order in which they went in. We therefore need to fix this order.
call reorder_element_numbering(output_positions)
#ifdef DDEBUG
do i = 1, nhalos
assert(trailing_receives_consistent(output_mesh%halos(i)))
assert(halo_valid_for_communication(output_mesh%halos(i)))
assert(halo_verifies(output_mesh%halos(i), output_positions))
end do
#endif
ewrite(2, *) "Finished constructing output halos"
end if
deallocate(gather)
deallocate(atosen)
deallocate(scater)
deallocate(atorec)
ewrite(2, *) "Constructing output surface data"
allocate(boundary_ids(nwnsel))
allocate(coplanar_ids(nwnsel))
call deinterleave_surface_ids(intarr(nwsfid:nwsfid + nwnsel - 1), max_coplanar_id, boundary_ids, coplanar_ids)
call add_faces(output_mesh, sndgln = intarr(nwsnls:nwsnls + nwszsn - 1), boundary_ids = boundary_ids)
deallocate(boundary_ids)
if(associated(input_positions%mesh%faces%coplanar_ids)) then
allocate(output_mesh%faces%coplanar_ids(nwnsel))
output_mesh%faces%coplanar_ids = coplanar_ids
end if
deallocate(coplanar_ids)
ewrite(2, *) "Finished constructing output surface data"
#ifdef DDEBUG
call verify_positions(output_positions)
#endif
ewrite(2, *) "Finished constructing output positions"
if(output_quality) then
assert(newmtx > 0)
call allocate(new_metric, output_positions%mesh, metric%name)
do i = 1, nwnnod
call set(new_metric, i, reshape(rlarr(newmtx + (i - 1) * dim * dim:newmtx + i * dim * dim - 1), (/dim, dim/)))
end do
call element_quality_pain_p0(output_positions, new_metric, quality)
ewrite_minmax(quality)
call vtk_write_fields("adapted_quality", index = output_quality_index, &
& position = output_positions, model = output_positions%mesh, &
& sfields = (/quality/), tfields = (/new_metric/))
output_quality_index = output_quality_index + 1
call deallocate(quality)
call deallocate(new_metric)
end if
if(present(node_ownership)) then
! Return the node ownership
assert(nwnnod > 0)
allocate(node_ownership(nwnnod))
node_ownership = intarr(nwndlc:nwndlc + nwnnod - 1)
end if
deallocate(intarr)
deallocate(rlarr)
ewrite(1, *) "Exiting adapt_mesh"
end subroutine adapt_mesh
function max_nodes(positions, expected_nodes)
type(vector_field), intent(in) :: positions
!! The process local number of expected nodes
integer, intent(in) :: expected_nodes
integer :: max_nodes
call get_option(base_path // "/maximum_number_of_nodes", max_nodes, default = 100000)
if(isparallel()) then
if(.not. have_option(base_path // "/maximum_number_of_nodes/per_process")) then
max_nodes = max_nodes / getnprocs()
end if
end if
max_nodes = max(max_nodes, expected_nodes, node_count(positions))
end function max_nodes
subroutine get_locked_nodes_and_faces(positions, lock_faces, locked_nodes)
type(vector_field), intent(in) :: positions
type(integer_set), intent(in) :: lock_faces
integer, dimension(:), allocatable, intent(out) :: locked_nodes
integer :: i, snloc
integer, dimension(:), allocatable :: llocked_nodes
snloc = face_loc(positions, 1)
call get_locked_nodes(positions, llocked_nodes)
allocate(locked_nodes(size(llocked_nodes) + key_count(lock_faces) * snloc))
locked_nodes(:size(llocked_nodes)) = llocked_nodes
do i = 1, key_count(lock_faces)
locked_nodes(size(llocked_nodes) + 1 + snloc * (i - 1):size(llocked_nodes) + snloc * i) = &
& face_global_nodes(positions, fetch(lock_faces, i))
end do
deallocate(llocked_nodes)
end subroutine get_locked_nodes_and_faces
subroutine verify_positions(positions)
!!< Verify the supplied Coordinate field - replaces elementsok
type(vector_field), intent(in) :: positions
integer :: i, nnodes
logical :: positive_volumes
real :: volume
type(element_type), pointer :: shape
ewrite(1, *) "In verify_positions"
nnodes = node_count(positions)
do i = 1, ele_count(positions)
assert(all(ele_nodes(positions, i) >= 1))
assert(all(ele_nodes(positions, i) <= nnodes))
shape => ele_shape(positions, i)
if(positions%dim == 3 .and. shape%loc == 4 .and. shape%degree == 1) then
volume = simplex_volume(positions, i)
if(abs(volume) < epsilon(0.0)) then
ewrite(-1, "(a,i0)") "For element: ", i
FLAbort("Degenerate tetrahedron encountered")
end if
if(i > 1) then
if(.not. positive_volumes .eqv. (volume > 0.0)) then
FLAbort("Signs of tetrahredon volumes are not consistent")
end if
else
positive_volumes = volume > 0.0
end if
end if
end do
ewrite(1, *) "Exiting verify_positions"
end subroutine verify_positions
function pain_functional(ele, positions, metric) result(func)
!!< Evaluate the Pain 2001 functional for the supplied 3d tetrahedron.
integer, intent(in) :: ele
type(vector_field), intent(in) :: positions
type(tensor_field), intent(in) :: metric
real :: func
integer, dimension(:), pointer :: nodes
real :: scale_factor = 1.0 / (2.0 * sqrt(6.0))
! mtetin arguments
real, dimension(4) :: x, y, z
real, dimension(3, 3) :: m
real :: vol
real, dimension(4) :: areas
real, dimension(6) :: l
real :: radius, qualty
x = ele_val(positions, 1, ele)
y = ele_val(positions, 2, ele)
z = ele_val(positions, 3, ele)
nodes => ele_nodes(metric, ele)
m = 0.25 * (node_val(metric, nodes(1)) + &
& node_val(metric, nodes(2)) + &
& node_val(metric, nodes(3)) + &
& node_val(metric, nodes(4)))
! Zero output arguments, just in case they're also used as input
vol = 0.0
areas = 0.0
l = 0.0
radius = 0.0
qualty = 0.0
! Use libadaptivity to compute the edge lengths and in-sphere radius
#ifdef HAVE_ADAPTIVITY
call mtetin(x, y, z, m, vol, areas, l, radius, qualty)
#else
FLExit("Fluidity compiled without libadaptivity support")
#endif
func = 0.5 * (((1.0 - l(1)) ** 2) + &
& ((1.0 - l(2)) ** 2) + &
& ((1.0 - l(3)) ** 2) + &
& ((1.0 - l(4)) ** 2) + &
& ((1.0 - l(5)) ** 2) + &
& ((1.0 - l(6)) ** 2)) + &
& (((scale_factor / radius) - 1.0) ** 2)
end function pain_functional
subroutine element_quality_pain_p0(positions, metric, quality)
type(vector_field), intent(in) :: positions
type(tensor_field), intent(in) :: metric
type(scalar_field), intent(out) :: quality
integer :: ele
type(mesh_type) :: pwc_mesh
assert(positions%dim == 3)
pwc_mesh = piecewise_constant_mesh(positions%mesh, "PWCMesh")
call allocate(quality, pwc_mesh, "ElementQuality")
call deallocate(pwc_mesh)
do ele=1,ele_count(positions)
call set(quality, ele, pain_functional(ele, positions, metric))
end do
end subroutine element_quality_pain_p0
subroutine adapt_integration_check_options
!!< Checks libadaptivity integration related options
integer :: dim, max_nodes, stat
if(.not. have_option(base_path)) then
! Nothing to check
return
end if
call get_option("/geometry/dimension", dim, stat)
if(stat /= SPUD_NO_ERROR) then
! This isn't the place to complain about this error
return
else if(have_option(base_path // "/adaptivity_library/libadaptivity") .or. dim == 3) then
if(dim /= 3) then
FLExit("libadaptivity can only be used in 3D")
end if
end if
ewrite(2, *) "Checking hr-adaptivity related options"
call get_option(base_path // "/maximum_number_of_nodes", max_nodes, stat)
if(stat /= SPUD_NO_ERROR) then
FLExit("Maximum number of nodes required for 3d adaptivity with libadaptivity")
else if(max_nodes <= 0) then
FLExit("Maximum number of nodes must be positive")
end if
ewrite(2, *) "Finished checking hr-adaptivity related options"
end subroutine adapt_integration_check_options
end module adapt_integration
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