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// $Id: matrix_block.h 30036 2013-07-18 16:55:32Z maier $
//
// Copyright (C) 2007 - 2013 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.
//
// ---------------------------------------------------------------------
#ifndef __deal2__matrix_block_h
#define __deal2__matrix_block_h
#include <deal.II/base/config.h>
#include <deal.II/base/named_data.h>
#include <deal.II/base/smartpointer.h>
#include <deal.II/base/std_cxx1x/shared_ptr.h>
#include <deal.II/base/memory_consumption.h>
#include <deal.II/base/mg_level_object.h>
#include <deal.II/lac/block_indices.h>
#include <deal.II/lac/block_sparsity_pattern.h>
#include <deal.II/lac/sparse_matrix.h>
#include <deal.II/lac/full_matrix.h>
DEAL_II_NAMESPACE_OPEN
template <class MATRIX> class MatrixBlock;
namespace internal
{
template <class MATRIX>
void
reinit(MatrixBlock<MATRIX> &v, const BlockSparsityPattern &p);
template <typename number>
void
reinit(MatrixBlock<dealii::SparseMatrix<number> > &, const BlockSparsityPattern &);
}
/**
* A wrapper around a matrix object, storing the coordinates in a
* block matrix as well.
*
* This class is an alternative to BlockMatrixBase, if you only want
* to generate a single block of the system, not the whole
* system. Using the add() functions of this class, it is possible to
* use the standard assembling functions used for block matrices, but
* only enter in one of the blocks and still avoiding the index
* computations involved.
* The reason for this class is, that we may need a different number
* of matrices for different blocks in a block system. For example, a
* preconditioner for the Oseen system can be built as a block system,
* where the pressure block is of the form
* <b>M</b><sup>-1</sup><b>FA</b><sup>-1</sup> with <b>M</b> the
* pressure mass matrix, <b>A</b> the pressure Laplacian and <b>F</b>
* the advection diffusion operator applied to the pressure
* space. Since only a single matrix is needed for the other blocks,
* using BlockSparseMatrix or similar would be a waste of memory.
*
* While the add() functions make a MatrixBlock appear like a block
* matrix for assembling, the functions vmult(), Tvmult(),
* vmult_add(), and Tvmult_add() make it behave like a MATRIX, when it
* comes to applying it to a vector. This behavior allows us to store
* MatrixBlock objects in vectors, for instance in MGLevelObject
* without extracting the #matrix first.
*
* MatrixBlock comes handy when using BlockMatrixArray. Once the
* MatrixBlock has been properly initalized and filled, it can be used
* in the simplest case as:
* @code
* MatrixBlockVector<SparseMatrix<double> > > blocks;
*
* ...
*
* BlockMatrixArray matrix (n_blocks, n_blocks);
*
* for (size_type i=0;i<blocks.size;++i)
* matrix.enter(blocks.block(i).row, blocks.block(i).column, blocks.matrix(i));
* @endcode
*
* Here, we have not gained very much, except that we do not need to
* set up empty blocks in the block system.
*
* @note This class expects, that the row and column BlockIndices
* objects for the system are equal. If they are not, some functions
* will throw ExcNotImplemented.
*
* @todo Example for the product preconditioner of the pressure Schur
* complement.
*
* @ingroup Matrix2
* @ingroup vector_valued
* @see @ref GlossBlockLA "Block (linear algebra)"
* @author Guido Kanschat, 2006
*/
template <class MATRIX>
class MatrixBlock
: public Subscriptor
{
public:
/**
* Declare type for container size.
*/
typedef types::global_dof_index size_type;
/**
* Constructor rendering an
* uninitialized object.
*/
MatrixBlock();
/**
* Copy constructor.
*/
MatrixBlock(const MatrixBlock<MATRIX> &M);
/**
* Constructor setting block
* coordinates, but not
* initializing the matrix.
*/
MatrixBlock(size_type i, size_type j);
/**
* Reinitialize the matrix for a
* new BlockSparsityPattern. This
* adjusts the #matrix as well
* as the #row_indices and
* #column_indices.
*
* @note The row and column block
* structure of the sparsity
* pattern must be equal.
*/
void reinit(const BlockSparsityPattern &sparsity);
operator MATRIX &();
operator const MATRIX &() const;
/**
* Add <tt>value</tt> to the
* element (<i>i,j</i>). Throws
* an error if the entry does not
* exist or if it is in a
* different block.
*/
void add (const size_type i,
const size_type j,
const typename MATRIX::value_type value);
/**
* Add all elements in a
* FullMatrix into sparse
* matrix locations given by
* <tt>indices</tt>. This function
* assumes a quadratic sparse
* matrix and a quadratic
* full_matrix. The global
* locations are translated
* into locations in this block
* and ExcBlockIndexMismatch is
* thrown, if the global index
* does not point into the
* block referred to by #row and
* #column.
*
* @todo
* <tt>elide_zero_values</tt> is
* currently ignored.
*
* The optional parameter
* <tt>elide_zero_values</tt> can be
* used to specify whether zero
* values should be added anyway or
* these should be filtered away and
* only non-zero data is added. The
* default value is <tt>true</tt>,
* i.e., zero values won't be added
* into the matrix.
*/
template <typename number>
void add (const std::vector<size_type> &indices,
const FullMatrix<number> &full_matrix,
const bool elide_zero_values = true);
/**
* Add all elements in a
* FullMatrix into global
* locations given by
* <tt>row_indices</tt> and
* <tt>col_indices</tt>,
* respectively. The global
* locations are translated
* into locations in this block
* and ExcBlockIndexMismatch is
* thrown, if the global index
* does not point into the
* block referred to by #row and
* #column.
*
* @todo
* <tt>elide_zero_values</tt> is
* currently ignored.
*
* The optional parameter
* <tt>elide_zero_values</tt> can be
* used to specify whether zero
* values should be added anyway or
* these should be filtered away and
* only non-zero data is added. The
* default value is <tt>true</tt>,
* i.e., zero values won't be added
* into the matrix.
*/
template <typename number>
void add (const std::vector<size_type> &row_indices,
const std::vector<size_type> &col_indices,
const FullMatrix<number> &full_matrix,
const bool elide_zero_values = true);
/**
* Set several elements in the
* specified row of the matrix
* with column indices as given
* by <tt>col_indices</tt> to
* the respective value. This
* is the function doing thye
* actual work for the ones
* adding full matrices. The
* global locations
* <tt>row_index</tt> and
* <tt>col_indices</tt> are
* translated into locations in
* this block and
* ExcBlockIndexMismatch is
* thrown, if the global index
* does not point into the
* block referred to by #row and
* #column.
*
* @todo
* <tt>elide_zero_values</tt> is
* currently ignored.
*
* The optional parameter
* <tt>elide_zero_values</tt> can be
* used to specify whether zero
* values should be added anyway or
* these should be filtered away and
* only non-zero data is added. The
* default value is <tt>true</tt>,
* i.e., zero values won't be added
* into the matrix.
*/
template <typename number>
void add (const size_type row_index,
const std::vector<size_type> &col_indices,
const std::vector<number> &values,
const bool elide_zero_values = true);
/**
* Add an array of values given by
* <tt>values</tt> in the given
* global matrix row at columns
* specified by col_indices in the
* sparse matrix.
*
* The optional parameter
* <tt>elide_zero_values</tt> can be
* used to specify whether zero
* values should be added anyway or
* these should be filtered away and
* only non-zero data is added. The
* default value is <tt>true</tt>,
* i.e., zero values won't be added
* into the matrix.
*/
template <typename number>
void add (const size_type row,
const size_type n_cols,
const size_type *col_indices,
const number *values,
const bool elide_zero_values = true,
const bool col_indices_are_sorted = false);
/**
* Matrix-vector-multiplication,
* forwarding to the same
* function in MATRIX. No index
* computations are done, thus,
* the vectors need to have sizes
* matching #matrix.
*/
template<class VECTOR>
void vmult (VECTOR &w, const VECTOR &v) const;
/**
* Matrix-vector-multiplication,
* forwarding to the same
* function in MATRIX. No index
* computations are done, thus,
* the vectors need to have sizes
* matching #matrix.
*/
template<class VECTOR>
void vmult_add (VECTOR &w, const VECTOR &v) const;
/**
* Matrix-vector-multiplication,
* forwarding to the same
* function in MATRIX. No index
* computations are done, thus,
* the vectors need to have sizes
* matching #matrix.
*/
template<class VECTOR>
void Tvmult (VECTOR &w, const VECTOR &v) const;
/**
* Matrix-vector-multiplication,
* forwarding to the same
* function in MATRIX. No index
* computations are done, thus,
* the vectors need to have sizes
* matching #matrix.
*/
template<class VECTOR>
void Tvmult_add (VECTOR &w, const VECTOR &v) const;
/**
* The memory used by this object.
*/
std::size_t memory_consumption () const;
/**
* The block number computed from
* an index by using
* BlockIndices does not match
* the block coordinates stored
* in this object.
*/
DeclException2(ExcBlockIndexMismatch, size_type, size_type,
<< "Block index " << arg1 << " does not match " << arg2);
/**
* Row coordinate. This is the
* position of the data member
* matrix on the global matrix.
*/
size_type row;
/**
* Column coordinate. This is
* the position of the data
* member matrix on the global
* matrix.
*/
size_type column;
/**
* The matrix itself
*/
MATRIX matrix;
private:
/**
* The rwo BlockIndices of the
* whole system. Using row(),
* this allows us to find the
* index of the first row degree
* of freedom for this block.
*/
BlockIndices row_indices;
/**
* The column BlockIndices of the
* whole system. Using column(),
* this allows us to find the
* index of the first column
* degree of freedom for this
* block.
*/
BlockIndices column_indices;
friend void internal::reinit<>(MatrixBlock<MATRIX> &, const BlockSparsityPattern &);
};
/**
* A vector of MatrixBlock, which is implemented using shared
* pointers, in order to allow for copying and rearranging. Each
* matrix block can be identified by name.
*
* @relates MatrixBlock
* @ingroup vector_valued
* @author Baerbel Janssen, Guido Kanschat, 2010
*/
template <class MATRIX>
class MatrixBlockVector
:
private NamedData<std_cxx1x::shared_ptr<MatrixBlock<MATRIX> > >
{
public:
/**
* Declare type for container size.
*/
typedef types::global_dof_index size_type;
/**
* The type of object stored.
*/
typedef MatrixBlock<MATRIX> value_type;
/**
* Add a new matrix block at the
* position <tt>(row,column)</tt>
* in the block system.
*/
void add(size_type row, size_type column, const std::string &name);
/**
* For matrices using a
* SparsityPattern, this function
* reinitializes each matrix in
* the vector with the correct
* pattern from the block system.
*/
void reinit(const BlockSparsityPattern &sparsity);
/**
* Clears the object.
*
* Since often only clearing of
* the individual matrices is
* desired, but not removing the
* blocks themselves, there is an
* optional argument. If the
* argument is missing or @p
* false, all matrices will be
* mepty, but the size of this
* object and the block positions
* will not change. If @p
* really_clean is @p true, then
* the object will contain no
* blocks at the end.
*/
void clear (bool really_clean = false);
/**
* The memory used by this object.
*/
std::size_t memory_consumption () const;
/**
* Access a constant reference to
* the block at position <i>i</i>.
*/
const value_type &block(size_type i) const;
/**
* Access a reference to
* the block at position <i>i</i>.
*/
value_type &block(size_type i);
/**
* Access the matrix at position
* <i>i</i> for read and write
* access.
*/
MATRIX &matrix(size_type i);
/**
* import functions from private base class
*/
using NamedData<std_cxx1x::shared_ptr<value_type> >::subscribe;
using NamedData<std_cxx1x::shared_ptr<value_type> >::unsubscribe;
using NamedData<std_cxx1x::shared_ptr<value_type> >::size;
using NamedData<std_cxx1x::shared_ptr<value_type> >::name;
};
/**
* A vector of MGLevelObject<MatrixBlock>, which is implemented using shared
* pointers, in order to allow for copying and rearranging. Each
* matrix block can be identified by name.
*
* @relates MatrixBlock
* @ingroup vector_valued
* @author Baerbel Janssen, Guido Kanschat, 2010
*/
template <class MATRIX>
class MGMatrixBlockVector
: public Subscriptor
{
public:
/**
* Declare type for container size.
*/
typedef types::global_dof_index size_type;
/**
* The type of object stored.
*/
typedef MGLevelObject<MatrixBlock<MATRIX> > value_type;
/**
* Constructor, determining which
* matrices should be stored.
*
* If <tt>edge_matrices</tt> is
* true, then objects for edge
* matrices for discretizations
* with degrees of freedom on
* faces are allocated.
*
* If <tt>edge_flux_matrices</tt>
* is true, then objects for DG
* fluxes on the refinement edge
* are allocated.
*/
MGMatrixBlockVector(const bool edge_matrices = false,
const bool edge_flux_matrices = false);
/**
* The number of blocks.
*/
unsigned int size () const;
/**
* Add a new matrix block at the
* position <tt>(row,column)</tt>
* in the block system. The third
* argument allows to give the
* matrix a name for later
* identification.
*/
void add(size_type row, size_type column, const std::string &name);
/**
* For matrices using a
* SparsityPattern, this function
* reinitializes each matrix in
* the vector with the correct
* pattern from the block system.
*
* This function reinitializes
* the level matrices.
*/
void reinit_matrix(const MGLevelObject<BlockSparsityPattern> &sparsity);
/**
* For matrices using a
* SparsityPattern, this function
* reinitializes each matrix in
* the vector with the correct
* pattern from the block system.
*
* This function reinitializes
* the matrices for degrees of
* freedom on the refinement edge.
*/
void reinit_edge(const MGLevelObject<BlockSparsityPattern> &sparsity);
/**
* For matrices using a
* SparsityPattern, this function
* reinitializes each matrix in
* the vector with the correct
* pattern from the block system.
*
* This function reinitializes
* the flux matrices over the
* refinement edge.
*/
void reinit_edge_flux(const MGLevelObject<BlockSparsityPattern> &sparsity);
/**
* Clears the object.
*
* Since often only clearing of
* the individual matrices is
* desired, but not removing the
* blocks themselves, there is an
* optional argument. If the
* argument is missing or @p
* false, all matrices will be
* mepty, but the size of this
* object and the block positions
* will not change. If @p
* really_clean is @p true, then
* the object will contain no
* blocks at the end.
*/
void clear (bool really_clean = false);
/**
* Access a constant reference to
* the matrix block at position <i>i</i>.
*/
const value_type &block(size_type i) const;
/**
* Access a reference to
* the matrix block at position <i>i</i>.
*/
value_type &block(size_type i);
/**
* Access a constant reference to
* the edge matrix block at position <i>i</i>.
*/
const value_type &block_in(size_type i) const;
/**
* Access a reference to
* the edge matrix block at position <i>i</i>.
*/
value_type &block_in(size_type i);
/**
* Access a constant reference to
* the edge matrix block at position <i>i</i>.
*/
const value_type &block_out(size_type i) const;
/**
* Access a reference to
* the edge matrix block at position <i>i</i>.
*/
value_type &block_out(size_type i);
/**
* Access a constant reference to
* the edge flux matrix block at position <i>i</i>.
*/
const value_type &block_up(size_type i) const;
/**
* Access a reference to
* the edge flux matrix block at position <i>i</i>.
*/
value_type &block_up(size_type i);
/**
* Access a constant reference to
* the edge flux matrix block at position <i>i</i>.
*/
const value_type &block_down(size_type i) const;
/**
* Access a reference to
* the edge flux matrix block at position <i>i</i>.
*/
value_type &block_down(size_type i);
/**
* The memory used by this object.
*/
std::size_t memory_consumption () const;
private:
/// Clear one of the matrix objects
void clear_object(NamedData<MGLevelObject<MatrixBlock<MATRIX> > > &);
/// Flag for storing matrices_in and matrices_out
const bool edge_matrices;
/// Flag for storing flux_matrices_up and flux_matrices_down
const bool edge_flux_matrices;
/// The level matrices
NamedData<MGLevelObject<MatrixBlock<MATRIX> > > matrices;
/// The matrix from the interior of a level to the refinement edge
NamedData<MGLevelObject<MatrixBlock<MATRIX> > > matrices_in;
/// The matrix from the refinement edge to the interior of a level
NamedData<MGLevelObject<MatrixBlock<MATRIX> > > matrices_out;
/// The DG flux from a level to the lower level
NamedData<MGLevelObject<MatrixBlock<MATRIX> > > flux_matrices_down;
/// The DG flux from the lower level to a level
NamedData<MGLevelObject<MatrixBlock<MATRIX> > > flux_matrices_up;
};
//----------------------------------------------------------------------//
namespace internal
{
template <class MATRIX>
void
reinit(MatrixBlock<MATRIX> &v, const BlockSparsityPattern &p)
{
v.row_indices = p.get_row_indices();
v.column_indices = p.get_column_indices();
}
template <typename number>
void
reinit(MatrixBlock<dealii::SparseMatrix<number> > &v, const BlockSparsityPattern &p)
{
v.row_indices = p.get_row_indices();
v.column_indices = p.get_column_indices();
v.matrix.reinit(p.block(v.row, v.column));
}
}
template <class MATRIX>
inline
MatrixBlock<MATRIX>::MatrixBlock()
:
row(deal_II_numbers::invalid_size_type),
column(deal_II_numbers::invalid_size_type)
{}
template <class MATRIX>
inline
MatrixBlock<MATRIX>::MatrixBlock(const MatrixBlock<MATRIX> &M)
:
Subscriptor(),
row(M.row),
column(M.column),
matrix(M.matrix),
row_indices(M.row_indices),
column_indices(M.column_indices)
{}
template <class MATRIX>
inline
MatrixBlock<MATRIX>::MatrixBlock(size_type i, size_type j)
:
row(i), column(j)
{}
template <class MATRIX>
inline
void
MatrixBlock<MATRIX>::reinit(const BlockSparsityPattern &sparsity)
{
internal::reinit(*this, sparsity);
}
template <class MATRIX>
inline
MatrixBlock<MATRIX>::operator MATRIX &()
{
return matrix;
}
template <class MATRIX>
inline
MatrixBlock<MATRIX>::operator const MATRIX &() const
{
return matrix;
}
template <class MATRIX>
inline void
MatrixBlock<MATRIX>::add (
const size_type gi,
const size_type gj,
const typename MATRIX::value_type value)
{
Assert(row_indices.size() != 0, ExcNotInitialized());
Assert(column_indices.size() != 0, ExcNotInitialized());
const std::pair<unsigned int, size_type> bi
= row_indices.global_to_local(gi);
const std::pair<unsigned int, size_type> bj
= column_indices.global_to_local(gj);
Assert (bi.first == row, ExcBlockIndexMismatch(bi.first, row));
Assert (bj.first == column, ExcBlockIndexMismatch(bj.first, column));
matrix.add(bi.second, bj.second, value);
}
template <class MATRIX>
template <typename number>
inline
void
MatrixBlock<MATRIX>::add (const std::vector<size_type> &r_indices,
const std::vector<size_type> &c_indices,
const FullMatrix<number> &values,
const bool elide_zero_values)
{
Assert(row_indices.size() != 0, ExcNotInitialized());
Assert(column_indices.size() != 0, ExcNotInitialized());
AssertDimension (r_indices.size(), values.m());
AssertDimension (c_indices.size(), values.n());
for (size_type i=0; i<row_indices.size(); ++i)
add (r_indices[i], c_indices.size(), &c_indices[0], &values(i,0),
elide_zero_values);
}
template <class MATRIX>
template <typename number>
inline
void
MatrixBlock<MATRIX>::add (const size_type b_row,
const size_type n_cols,
const size_type *col_indices,
const number *values,
const bool,
const bool)
{
Assert(row_indices.size() != 0, ExcNotInitialized());
Assert(column_indices.size() != 0, ExcNotInitialized());
const std::pair<unsigned int, size_type> bi
= row_indices.global_to_local(b_row);
// In debug mode, we check whether
// all indices are in the correct
// block.
// Actually, for the time being, we
// leave it at this. While it may
// not be the most efficient way,
// it is at least thread safe.
//#ifdef DEBUG
Assert(bi.first == row, ExcBlockIndexMismatch(bi.first, row));
for (size_type j=0; j<n_cols; ++j)
{
const std::pair<unsigned int, size_type> bj
= column_indices.global_to_local(col_indices[j]);
Assert(bj.first == column, ExcBlockIndexMismatch(bj.first, column));
matrix.add(bi.second, bj.second, values[j]);
}
//#endif
}
template <class MATRIX>
template <typename number>
inline
void
MatrixBlock<MATRIX>::add (const std::vector<size_type> &indices,
const FullMatrix<number> &values,
const bool elide_zero_values)
{
Assert(row_indices.size() != 0, ExcNotInitialized());
Assert(column_indices.size() != 0, ExcNotInitialized());
AssertDimension (indices.size(), values.m());
Assert (values.n() == values.m(), ExcNotQuadratic());
for (size_type i=0; i<indices.size(); ++i)
add (indices[i], indices.size(), &indices[0], &values(i,0),
elide_zero_values);
}
template <class MATRIX>
template <typename number>
inline
void
MatrixBlock<MATRIX>::add (const size_type row,
const std::vector<size_type> &col_indices,
const std::vector<number> &values,
const bool elide_zero_values)
{
Assert(row_indices.size() != 0, ExcNotInitialized());
Assert(column_indices.size() != 0, ExcNotInitialized());
AssertDimension (col_indices.size(), values.size());
add (row, col_indices.size(), &col_indices[0], &values[0],
elide_zero_values);
}
template <class MATRIX>
template <class VECTOR>
inline
void
MatrixBlock<MATRIX>::vmult (VECTOR &w, const VECTOR &v) const
{
matrix.vmult(w,v);
}
template <class MATRIX>
template <class VECTOR>
inline
void
MatrixBlock<MATRIX>::vmult_add (VECTOR &w, const VECTOR &v) const
{
matrix.vmult_add(w,v);
}
template <class MATRIX>
template <class VECTOR>
inline
void
MatrixBlock<MATRIX>::Tvmult (VECTOR &w, const VECTOR &v) const
{
matrix.Tvmult(w,v);
}
template <class MATRIX>
template <class VECTOR>
inline
void
MatrixBlock<MATRIX>::Tvmult_add (VECTOR &w, const VECTOR &v) const
{
matrix.Tvmult_add(w,v);
}
template <class MATRIX>
inline
std::size_t
MatrixBlock<MATRIX>::memory_consumption () const
{
return (sizeof(*this)
+ MemoryConsumption::memory_consumption(matrix)
- sizeof(matrix));
}
//----------------------------------------------------------------------//
template <class MATRIX>
inline void
MatrixBlockVector<MATRIX>::add(
size_type row, size_type column,
const std::string &name)
{
std_cxx1x::shared_ptr<value_type> p(new value_type(row, column));
NamedData<std_cxx1x::shared_ptr<value_type> >::add(p, name);
}
template <class MATRIX>
inline void
MatrixBlockVector<MATRIX>::reinit(const BlockSparsityPattern &sparsity)
{
for (size_type i=0; i<this->size(); ++i)
{
block(i).reinit(sparsity);
}
}
template <class MATRIX>
inline void
MatrixBlockVector<MATRIX>::clear(bool really_clean)
{
if (really_clean)
{
Assert(false, ExcNotImplemented());
}
else
{
for (size_type i=0; i<this->size(); ++i)
matrix(i).clear();
}
}
template <class MATRIX>
inline const MatrixBlock<MATRIX> &
MatrixBlockVector<MATRIX>::block(size_type i) const
{
return *this->read(i);
}
template <class MATRIX>
inline MatrixBlock<MATRIX> &
MatrixBlockVector<MATRIX>::block(size_type i)
{
return *(*this)(i);
}
template <class MATRIX>
inline MATRIX &
MatrixBlockVector<MATRIX>::matrix(size_type i)
{
return (*this)(i)->matrix;
}
//----------------------------------------------------------------------//
template <class MATRIX>
inline
MGMatrixBlockVector<MATRIX>::MGMatrixBlockVector(
const bool e, const bool f)
:
edge_matrices(e),
edge_flux_matrices(f)
{}
template <class MATRIX>
inline
unsigned int
MGMatrixBlockVector<MATRIX>::size () const
{
return matrices.size();
}
template <class MATRIX>
inline void
MGMatrixBlockVector<MATRIX>::add(
size_type row, size_type column,
const std::string &name)
{
MGLevelObject<MatrixBlock<MATRIX> > p(0, 1);
p[0].row = row;
p[0].column = column;
matrices.add(p, name);
if (edge_matrices)
{
matrices_in.add(p, name);
matrices_out.add(p, name);
}
if (edge_flux_matrices)
{
flux_matrices_up.add(p, name);
flux_matrices_down.add(p, name);
}
}
template <class MATRIX>
inline const MGLevelObject<MatrixBlock<MATRIX> > &
MGMatrixBlockVector<MATRIX>::block(size_type i) const
{
return matrices.read(i);
}
template <class MATRIX>
inline MGLevelObject<MatrixBlock<MATRIX> > &
MGMatrixBlockVector<MATRIX>::block(size_type i)
{
return matrices(i);
}
template <class MATRIX>
inline const MGLevelObject<MatrixBlock<MATRIX> > &
MGMatrixBlockVector<MATRIX>::block_in(size_type i) const
{
return matrices_in.read(i);
}
template <class MATRIX>
inline MGLevelObject<MatrixBlock<MATRIX> > &
MGMatrixBlockVector<MATRIX>::block_in(size_type i)
{
return matrices_in(i);
}
template <class MATRIX>
inline const MGLevelObject<MatrixBlock<MATRIX> > &
MGMatrixBlockVector<MATRIX>::block_out(size_type i) const
{
return matrices_out.read(i);
}
template <class MATRIX>
inline MGLevelObject<MatrixBlock<MATRIX> > &
MGMatrixBlockVector<MATRIX>::block_out(size_type i)
{
return matrices_out(i);
}
template <class MATRIX>
inline const MGLevelObject<MatrixBlock<MATRIX> > &
MGMatrixBlockVector<MATRIX>::block_up(size_type i) const
{
return flux_matrices_up.read(i);
}
template <class MATRIX>
inline MGLevelObject<MatrixBlock<MATRIX> > &
MGMatrixBlockVector<MATRIX>::block_up(size_type i)
{
return flux_matrices_up(i);
}
template <class MATRIX>
inline const MGLevelObject<MatrixBlock<MATRIX> > &
MGMatrixBlockVector<MATRIX>::block_down(size_type i) const
{
return flux_matrices_down.read(i);
}
template <class MATRIX>
inline MGLevelObject<MatrixBlock<MATRIX> > &
MGMatrixBlockVector<MATRIX>::block_down(size_type i)
{
return flux_matrices_down(i);
}
template <class MATRIX>
inline void
MGMatrixBlockVector<MATRIX>::reinit_matrix(const MGLevelObject<BlockSparsityPattern> &sparsity)
{
for (size_type i=0; i<this->size(); ++i)
{
MGLevelObject<MatrixBlock<MATRIX> > &o = block(i);
const size_type row = o[o.min_level()].row;
const size_type col = o[o.min_level()].column;
o.resize(sparsity.min_level(), sparsity.max_level());
for (size_type level = o.min_level(); level <= o.max_level(); ++level)
{
o[level].row = row;
o[level].column = col;
internal::reinit(o[level], sparsity[level]);
}
}
}
template <class MATRIX>
inline void
MGMatrixBlockVector<MATRIX>::reinit_edge(const MGLevelObject<BlockSparsityPattern> &sparsity)
{
for (size_type i=0; i<this->size(); ++i)
{
MGLevelObject<MatrixBlock<MATRIX> > &o = block(i);
const size_type row = o[o.min_level()].row;
const size_type col = o[o.min_level()].column;
block_in(i).resize(sparsity.min_level(), sparsity.max_level());
block_out(i).resize(sparsity.min_level(), sparsity.max_level());
for (size_type level = o.min_level(); level <= o.max_level(); ++level)
{
block_in(i)[level].row = row;
block_in(i)[level].column = col;
internal::reinit(block_in(i)[level], sparsity[level]);
block_out(i)[level].row = row;
block_out(i)[level].column = col;
internal::reinit(block_out(i)[level], sparsity[level]);
}
}
}
template <class MATRIX>
inline void
MGMatrixBlockVector<MATRIX>::reinit_edge_flux(const MGLevelObject<BlockSparsityPattern> &sparsity)
{
for (size_type i=0; i<this->size(); ++i)
{
MGLevelObject<MatrixBlock<MATRIX> > &o = block(i);
const size_type row = o[o.min_level()].row;
const size_type col = o[o.min_level()].column;
block_up(i).resize(sparsity.min_level(), sparsity.max_level());
block_down(i).resize(sparsity.min_level(), sparsity.max_level());
for (size_type level = o.min_level(); level <= o.max_level(); ++level)
{
block_up(i)[level].row = row;
block_up(i)[level].column = col;
internal::reinit(block_up(i)[level], sparsity[level]);
block_down(i)[level].row = row;
block_down(i)[level].column = col;
internal::reinit(block_down(i)[level], sparsity[level]);
}
}
}
template <class MATRIX>
inline void
MGMatrixBlockVector<MATRIX>::clear_object(NamedData<MGLevelObject<MatrixBlock<MATRIX> > > &mo)
{
for (size_type i=0; i<mo.size(); ++i)
{
MGLevelObject<MatrixBlock<MATRIX> > &o = mo(i);
for (size_type level = o.min_level(); level <= o.max_level(); ++level)
o[level].matrix.clear();
}
}
template <class MATRIX>
inline void
MGMatrixBlockVector<MATRIX>::clear(bool really_clean)
{
if (really_clean)
{
Assert(false, ExcNotImplemented());
}
else
{
clear_object(matrices);
clear_object(matrices_in);
clear_object(matrices_out);
clear_object(flux_matrices_up);
clear_object(flux_matrices_down);
}
}
DEAL_II_NAMESPACE_CLOSE
#endif
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