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// ---------------------------------------------------------------------
//
// Copyright (C) 2006 - 2018 by the deal.II authors
//
// This file is part of the deal.II library.
//
// The deal.II library is free software; you can use it, 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.
// The full text of the license can be found in the file LICENSE at
// the top level of the deal.II distribution.
//
// ---------------------------------------------------------------------
#include <deal.II/base/memory_consumption.h>
#include <deal.II/grid/tria_objects.h>
#include <deal.II/grid/tria.h>
#include <deal.II/grid/tria_iterator.h>
#include <deal.II/grid/tria_accessor.h>
#include <algorithm>
#include <functional>
DEAL_II_NAMESPACE_OPEN
namespace internal
{
namespace TriangulationImplementation
{
template <class G>
void
TriaObjects<G>::reserve_space (const unsigned int new_objects_in_pairs,
const unsigned int new_objects_single)
{
Assert(new_objects_in_pairs%2==0, ExcInternalError());
next_free_single=0;
next_free_pair=0;
reverse_order_next_free_single=false;
// count the number of objects, of unused single objects and of
// unused pairs of objects
unsigned int n_objects=0;
unsigned int n_unused_pairs=0;
unsigned int n_unused_singles=0;
for (unsigned int i=0; i<used.size(); ++i)
{
if (used[i])
++n_objects;
else if (i+1<used.size())
{
if (used[i+1])
{
++n_unused_singles;
if (next_free_single==0)
next_free_single=i;
}
else
{
++n_unused_pairs;
if (next_free_pair==0)
next_free_pair=i;
++i;
}
}
else
++n_unused_singles;
}
Assert(n_objects+2*n_unused_pairs+n_unused_singles==used.size(),
ExcInternalError());
// how many single objects are needed in addition to
// n_unused_objects?
const int additional_single_objects=
new_objects_single-n_unused_singles;
unsigned int new_size=
used.size() + new_objects_in_pairs - 2*n_unused_pairs;
if (additional_single_objects>0)
new_size+=additional_single_objects;
// only allocate space if necessary
if (new_size>cells.size())
{
cells.reserve (new_size);
cells.insert (cells.end(),
new_size-cells.size(),
G ());
used.reserve (new_size);
used.insert (used.end(),
new_size-used.size(),
false);
user_flags.reserve (new_size);
user_flags.insert (user_flags.end(),
new_size-user_flags.size(),
false);
const unsigned int factor = GeometryInfo<G::dimension>::max_children_per_cell / 2;
children.reserve (factor*new_size);
children.insert (children.end(),
factor*new_size-children.size(),
-1);
if (G::dimension > 1)
{
refinement_cases.reserve (new_size);
refinement_cases.insert (refinement_cases.end(),
new_size - refinement_cases.size(),
RefinementCase<G::dimension>::no_refinement);
}
// first reserve, then resize. Otherwise the std library can decide to allocate
// more entries.
boundary_or_material_id.reserve (new_size);
boundary_or_material_id.resize (new_size);
user_data.reserve (new_size);
user_data.resize (new_size);
manifold_id.reserve (new_size);
manifold_id.insert (manifold_id.end(),
new_size-manifold_id.size(),
numbers::flat_manifold_id);
}
if (n_unused_singles==0)
{
next_free_single=new_size-1;
reverse_order_next_free_single=true;
}
}
template <>
template <int dim, int spacedim>
typename dealii::Triangulation<dim,spacedim>::raw_hex_iterator
TriaObjects<TriaObject<3> >::next_free_hex (const dealii::Triangulation<dim,spacedim> &tria,
const unsigned int level)
{
// TODO: Think of a way to ensure that we are using the correct triangulation, i.e. the one containing *this.
int pos=next_free_pair,
last=used.size()-1;
for (; pos<last; ++pos)
if (!used[pos])
{
// this should be a pair slot
Assert(!used[pos+1], ExcInternalError());
break;
}
if (pos>=last)
// no free slot
return tria.end_hex();
else
next_free_pair=pos+2;
return typename dealii::Triangulation<dim,spacedim>::raw_hex_iterator(&tria,level,pos);
}
void
TriaObjectsHex::reserve_space (const unsigned int new_hexes)
{
const unsigned int new_size = new_hexes +
std::count_if (used.begin(),
used.end(),
std::bind (std::equal_to<bool>(), std::placeholders::_1, true));
// see above...
if (new_size>cells.size())
{
cells.reserve (new_size);
cells.insert (cells.end(),
new_size-cells.size(),
TriaObject<3> ());
used.reserve (new_size);
used.insert (used.end(),
new_size-used.size(),
false);
user_flags.reserve (new_size);
user_flags.insert (user_flags.end(),
new_size-user_flags.size(),
false);
children.reserve (4*new_size);
children.insert (children.end(),
4*new_size-children.size(),
-1);
// for the following fields, we know exactly how many elements
// we need, so first reserve then resize (resize itself, at least
// with some compiler libraries, appears to round up the size it
// actually reserves)
boundary_or_material_id.reserve (new_size);
boundary_or_material_id.resize (new_size);
manifold_id.reserve (new_size);
manifold_id.insert (manifold_id.end(),
new_size-manifold_id.size(),
numbers::flat_manifold_id);
user_data.reserve (new_size);
user_data.resize (new_size);
face_orientations.reserve (new_size * GeometryInfo<3>::faces_per_cell);
face_orientations.insert (face_orientations.end(),
new_size * GeometryInfo<3>::faces_per_cell
- face_orientations.size(),
true);
refinement_cases.reserve (new_size);
refinement_cases.insert (refinement_cases.end(),
new_size-refinement_cases.size(),
RefinementCase<3>::no_refinement);
face_flips.reserve (new_size * GeometryInfo<3>::faces_per_cell);
face_flips.insert (face_flips.end(),
new_size * GeometryInfo<3>::faces_per_cell
- face_flips.size(),
false);
face_rotations.reserve (new_size * GeometryInfo<3>::faces_per_cell);
face_rotations.insert (face_rotations.end(),
new_size * GeometryInfo<3>::faces_per_cell
- face_rotations.size(),
false);
}
next_free_single=next_free_pair=0;
}
void
TriaObjectsQuad3D::reserve_space (const unsigned int new_quads_in_pairs,
const unsigned int new_quads_single)
{
Assert(new_quads_in_pairs%2==0, ExcInternalError());
next_free_single=0;
next_free_pair=0;
reverse_order_next_free_single=false;
// count the number of objects, of unused single objects and of
// unused pairs of objects
unsigned int n_quads=0;
unsigned int n_unused_pairs=0;
unsigned int n_unused_singles=0;
for (unsigned int i=0; i<used.size(); ++i)
{
if (used[i])
++n_quads;
else if (i+1<used.size())
{
if (used[i+1])
{
++n_unused_singles;
if (next_free_single==0)
next_free_single=i;
}
else
{
++n_unused_pairs;
if (next_free_pair==0)
next_free_pair=i;
++i;
}
}
else
++n_unused_singles;
}
Assert(n_quads+2*n_unused_pairs+n_unused_singles==used.size(),
ExcInternalError());
// how many single quads are needed in addition to n_unused_quads?
const int additional_single_quads=
new_quads_single-n_unused_singles;
unsigned int new_size=
used.size() + new_quads_in_pairs - 2*n_unused_pairs;
if (additional_single_quads>0)
new_size+=additional_single_quads;
// see above...
if (new_size>cells.size())
{
// reseve space for the base class
TriaObjects<TriaObject<2> >::reserve_space(new_quads_in_pairs,new_quads_single);
// reserve the field of the derived class
line_orientations.reserve (new_size * GeometryInfo<2>::lines_per_cell);
line_orientations.insert (line_orientations.end(),
new_size * GeometryInfo<2>::lines_per_cell
- line_orientations.size(),
true);
}
if (n_unused_singles==0)
{
next_free_single=new_size-1;
reverse_order_next_free_single=true;
}
}
template <>
void
TriaObjects<TriaObject<1> >::monitor_memory (const unsigned int) const
{
Assert (cells.size() == used.size(),
ExcMemoryInexact (cells.size(), used.size()));
Assert (cells.size() == user_flags.size(),
ExcMemoryInexact (cells.size(), user_flags.size()));
Assert (cells.size() == children.size(),
ExcMemoryInexact (cells.size(), children.size()));
Assert (cells.size() == boundary_or_material_id.size(),
ExcMemoryInexact (cells.size(), boundary_or_material_id.size()));
Assert (cells.size() == manifold_id.size(),
ExcMemoryInexact (cells.size(), manifold_id.size()));
Assert (cells.size() == user_data.size(),
ExcMemoryInexact (cells.size(), user_data.size()));
}
template <>
void
TriaObjects<TriaObject<2> >::monitor_memory (const unsigned int) const
{
Assert (cells.size() == used.size(),
ExcMemoryInexact (cells.size(), used.size()));
Assert (cells.size() == user_flags.size(),
ExcMemoryInexact (cells.size(), user_flags.size()));
Assert (2*cells.size() == children.size(),
ExcMemoryInexact (cells.size(), children.size()));
Assert (cells.size() == refinement_cases.size(),
ExcMemoryInexact (cells.size(), refinement_cases.size()));
Assert (cells.size() == boundary_or_material_id.size(),
ExcMemoryInexact (cells.size(), boundary_or_material_id.size()));
Assert (cells.size() == manifold_id.size(),
ExcMemoryInexact (cells.size(), manifold_id.size()));
Assert (cells.size() == user_data.size(),
ExcMemoryInexact (cells.size(), user_data.size()));
}
void
TriaObjectsHex::monitor_memory (const unsigned int) const
{
Assert (cells.size() == used.size(),
ExcMemoryInexact (cells.size(), used.size()));
Assert (cells.size() == user_flags.size(),
ExcMemoryInexact (cells.size(), user_flags.size()));
Assert (4*cells.size() == children.size(),
ExcMemoryInexact (cells.size(), children.size()));
Assert (cells.size() == boundary_or_material_id.size(),
ExcMemoryInexact (cells.size(), boundary_or_material_id.size()));
Assert (cells.size() == manifold_id.size(),
ExcMemoryInexact (cells.size(), manifold_id.size()));
Assert (cells.size() == user_data.size(),
ExcMemoryInexact (cells.size(), user_data.size()));
Assert (cells.size() * GeometryInfo<3>::faces_per_cell
== face_orientations.size(),
ExcMemoryInexact (cells.size() * GeometryInfo<3>::faces_per_cell,
face_orientations.size()));
Assert (cells.size() * GeometryInfo<3>::faces_per_cell
== face_flips.size(),
ExcMemoryInexact (cells.size() * GeometryInfo<3>::faces_per_cell,
face_flips.size()));
Assert (cells.size() * GeometryInfo<3>::faces_per_cell
== face_rotations.size(),
ExcMemoryInexact (cells.size() * GeometryInfo<3>::faces_per_cell,
face_rotations.size()));
}
void
TriaObjectsQuad3D::monitor_memory (const unsigned int) const
{
// check that we have not allocated too much memory. note that bool
// vectors allocate their memory in chunks of whole integers, so they
// may over-allocate by up to as many elements as an integer has bits
Assert (cells.size() * GeometryInfo<2>::lines_per_cell
== line_orientations.size(),
ExcMemoryInexact (cells.size() * GeometryInfo<2>::lines_per_cell,
line_orientations.size()));
TriaObjects<TriaObject<2> >::monitor_memory (3);
}
template <typename G>
void
TriaObjects<G>::clear()
{
cells.clear();
children.clear();
refinement_cases.clear();
used.clear();
user_flags.clear();
boundary_or_material_id.clear();
manifold_id.clear();
user_data.clear();
user_data_type = data_unknown;
}
void
TriaObjectsHex::clear()
{
TriaObjects<TriaObject<3> >::clear();
face_orientations.clear();
face_flips.clear();
face_rotations.clear();
}
void
TriaObjectsQuad3D::clear()
{
TriaObjects<TriaObject<2> >::clear();
line_orientations.clear();
}
template <typename G>
std::size_t
TriaObjects<G>::memory_consumption () const
{
return (MemoryConsumption::memory_consumption (cells) +
MemoryConsumption::memory_consumption (children) +
MemoryConsumption::memory_consumption (used) +
MemoryConsumption::memory_consumption (user_flags) +
MemoryConsumption::memory_consumption (boundary_or_material_id) +
MemoryConsumption::memory_consumption (manifold_id) +
MemoryConsumption::memory_consumption (refinement_cases) +
user_data.capacity() * sizeof(UserData) + sizeof(user_data));
}
std::size_t
TriaObjectsHex::memory_consumption () const
{
return (MemoryConsumption::memory_consumption (face_orientations) +
MemoryConsumption::memory_consumption (face_flips) +
MemoryConsumption::memory_consumption (face_rotations) +
TriaObjects<TriaObject<3> >::memory_consumption() );
}
std::size_t
TriaObjectsQuad3D::memory_consumption () const
{
return (MemoryConsumption::memory_consumption (line_orientations) +
this->TriaObjects<TriaObject<2> >::memory_consumption() );
}
// explicit instantiations
template class TriaObjects<TriaObject<1> >;
template class TriaObjects<TriaObject<2> >;
#include "tria_objects.inst"
}
}
DEAL_II_NAMESPACE_CLOSE
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