#include <multi_poisson_block_preconditioners.h>

Inheritance diagram for oomph::TwoPlusThree< MATRIX >:

Public Member Functions
	TwoPlusThree ()
	Constructor for TwoPlusThree. More...

	~TwoPlusThree ()
	Destructor - delete the diagonal solvers (subsidiary preconditioners) More...

virtual void	clean_up_my_memory ()
	clean up the memory More...

	TwoPlusThree (const TwoPlusThree &)
	Broken copy constructor. More...

void	operator= (const TwoPlusThree &)
	Broken assignment operator. More...

void	preconditioner_solve (const DoubleVector &r, DoubleVector &z)
	Apply preconditioner to r, i.e. return z such that P z = r. More...

virtual void	setup ()
	Setup the preconditioner. More...

void	set_multi_poisson_mesh (Mesh *multi_poisson_mesh_pt)
	Specify the mesh that contains multi-poisson elements. More...

Public Member Functions inherited from oomph::BlockPreconditioner< MATRIX >
	BlockPreconditioner ()
	Constructor. More...

virtual	~BlockPreconditioner ()
	Destructor. More...

	BlockPreconditioner (const BlockPreconditioner &)=delete
	Broken copy constructor. More...

void	operator= (const BlockPreconditioner &)=delete
	Broken assignment operator. More...

MATRIX *	matrix_pt () const

void	turn_on_recursive_debug_flag ()

void	turn_off_recursive_debug_flag ()

void	turn_on_debug_flag ()
	Toggles on the debug flag. More...

void	turn_off_debug_flag ()
	Toggles off the debug flag. More...

void	turn_into_subsidiary_block_preconditioner (BlockPreconditioner< MATRIX > *master_block_prec_pt, const Vector< unsigned > &doftype_in_master_preconditioner_coarse)

void	turn_into_subsidiary_block_preconditioner (BlockPreconditioner< MATRIX > *master_block_prec_pt, const Vector< unsigned > &doftype_in_master_preconditioner_coarse, const Vector< Vector< unsigned >> &doftype_coarsen_map_coarse)

virtual void	block_setup ()

void	block_setup (const Vector< unsigned > &dof_to_block_map)

void	get_block (const unsigned &i, const unsigned &j, MATRIX &output_matrix, const bool &ignore_replacement_block=false) const

MATRIX	get_block (const unsigned &i, const unsigned &j, const bool &ignore_replacement_block=false) const

void	set_master_matrix_pt (MATRIX *in_matrix_pt)
	Set the matrix_pt in the upper-most master preconditioner. More...

void	get_block_other_matrix (const unsigned &i, const unsigned &j, MATRIX *in_matrix_pt, MATRIX &output_matrix)

void	get_blocks (DenseMatrix< bool > &required_blocks, DenseMatrix< MATRIX * > &block_matrix_pt) const

void	get_dof_level_block (const unsigned &i, const unsigned &j, MATRIX &output_block, const bool &ignore_replacement_block=false) const

MATRIX	get_concatenated_block (const VectorMatrix< BlockSelector > &selected_block)

void	get_concatenated_block_vector (const Vector< unsigned > &block_vec_number, const DoubleVector &v, DoubleVector &b)

void	return_concatenated_block_vector (const Vector< unsigned > &block_vec_number, const DoubleVector &b, DoubleVector &v) const
	Takes concatenated block ordered vector, b, and copies its. More...

void	get_block_vectors (const Vector< unsigned > &block_vec_number, const DoubleVector &v, Vector< DoubleVector > &s) const

void	get_block_vectors (const DoubleVector &v, Vector< DoubleVector > &s) const

void	return_block_vectors (const Vector< unsigned > &block_vec_number, const Vector< DoubleVector > &s, DoubleVector &v) const

void	return_block_vectors (const Vector< DoubleVector > &s, DoubleVector &v) const

void	get_block_vector (const unsigned &n, const DoubleVector &v, DoubleVector &b) const

void	return_block_vector (const unsigned &n, const DoubleVector &b, DoubleVector &v) const

void	get_block_ordered_preconditioner_vector (const DoubleVector &v, DoubleVector &w)

void	return_block_ordered_preconditioner_vector (const DoubleVector &w, DoubleVector &v) const

unsigned	nblock_types () const
	Return the number of block types. More...

unsigned	ndof_types () const
	Return the total number of DOF types. More...

const Mesh *	mesh_pt (const unsigned &i) const

unsigned	nmesh () const

int	block_number (const unsigned &i_dof) const
	Return the block number corresponding to a global index i_dof. More...

int	index_in_block (const unsigned &i_dof) const

const LinearAlgebraDistribution *	block_distribution_pt (const unsigned &b) const
	Access function to the block distributions (const version). More...

LinearAlgebraDistribution *	block_distribution_pt (const unsigned b)
	Access function to the block distributions (non-const version). More...

LinearAlgebraDistribution *	dof_block_distribution_pt (const unsigned &b)
	Access function to the dof-level block distributions. More...

const LinearAlgebraDistribution *	master_distribution_pt () const

unsigned	ndof_types_in_mesh (const unsigned &i) const

bool	is_subsidiary_block_preconditioner () const

bool	is_master_block_preconditioner () const

void	set_block_output_to_files (const std::string &basefilename)

void	disable_block_output_to_files ()
	Turn off output of blocks (by clearing the basefilename string). More...

bool	block_output_on () const
	Test if output of blocks is on or not. More...

void	output_blocks_to_files (const std::string &basefilename, const unsigned &precision=8) const

void	post_block_matrix_assembly_partial_clear ()

BlockPreconditioner< MATRIX > *	master_block_preconditioner_pt () const
	Access function to the master block preconditioner pt. More...

void	clear_block_preconditioner_base ()

void	document ()

Vector< Vector< unsigned > >	doftype_coarsen_map_fine () const

Vector< unsigned >	get_fine_grain_dof_types_in (const unsigned &i) const

unsigned	nfine_grain_dof_types_in (const unsigned &i) const

MapMatrix< unsigned, CRDoubleMatrix * >	replacement_dof_block_pt () const
	Access function to the replaced dof-level blocks. More...

void	setup_matrix_vector_product (MatrixVectorProduct matvec_prod_pt, CRDoubleMatrix block_pt, const Vector< unsigned > &block_col_indices)

void	setup_matrix_vector_product (MatrixVectorProduct matvec_prod_pt, CRDoubleMatrix block_pt, const unsigned &block_col_index)

void	internal_get_block_ordered_preconditioner_vector (const DoubleVector &v, DoubleVector &w) const

void	internal_return_block_ordered_preconditioner_vector (const DoubleVector &w, DoubleVector &v) const

unsigned	internal_nblock_types () const

unsigned	internal_ndof_types () const

void	internal_return_block_vector (const unsigned &n, const DoubleVector &b, DoubleVector &v) const

void	internal_get_block_vector (const unsigned &n, const DoubleVector &v, DoubleVector &b) const

void	internal_get_block_vectors (const Vector< unsigned > &block_vec_number, const DoubleVector &v, Vector< DoubleVector > &s) const

void	internal_get_block_vectors (const DoubleVector &v, Vector< DoubleVector > &s) const

void	internal_return_block_vectors (const Vector< unsigned > &block_vec_number, const Vector< DoubleVector > &s, DoubleVector &v) const

void	internal_return_block_vectors (const Vector< DoubleVector > &s, DoubleVector &v) const

void	internal_get_block (const unsigned &i, const unsigned &j, MATRIX &output_block) const

int	internal_block_number (const unsigned &i_dof) const

int	internal_index_in_block (const unsigned &i_dof) const

const LinearAlgebraDistribution *	internal_block_distribution_pt (const unsigned &b) const
	Access function to the internal block distributions. More...

void	insert_auxiliary_block_distribution (const Vector< unsigned > &block_vec_number, LinearAlgebraDistribution *dist_pt)

void	block_matrix_test (const unsigned &i, const unsigned &j, const MATRIX *block_matrix_pt) const

template<typename myType >
int	get_index_of_value (const Vector< myType > &vec, const myType val, const bool sorted=false) const

void	internal_get_block (const unsigned &block_i, const unsigned &block_j, CRDoubleMatrix &output_block) const

void	get_dof_level_block (const unsigned &block_i, const unsigned &block_j, CRDoubleMatrix &output_block, const bool &ignore_replacement_block) const

Public Member Functions inherited from oomph::Preconditioner
	Preconditioner ()
	Constructor. More...

	Preconditioner (const Preconditioner &)=delete
	Broken copy constructor. More...

void	operator= (const Preconditioner &)=delete
	Broken assignment operator. More...

virtual	~Preconditioner ()
	Destructor (empty) More...

virtual void	preconditioner_solve_transpose (const DoubleVector &r, DoubleVector &z)

void	setup (DoubleMatrixBase *matrix_pt)

void	setup (const Problem problem_pt, DoubleMatrixBase matrix_pt)

void	enable_silent_preconditioner_setup ()
	Set up the block preconditioner quietly! More...

void	disable_silent_preconditioner_setup ()
	Be verbose in the block preconditioner setup. More...

virtual void	clean_up_memory ()
	Clean up memory (empty). Generic interface function. More...

virtual void	set_matrix_pt (DoubleMatrixBase *matrix_pt)
	Set the matrix pointer. More...

virtual const OomphCommunicator *	comm_pt () const
	Get function for comm pointer. More...

virtual void	set_comm_pt (const OomphCommunicator *const comm_pt)
	Set the communicator pointer. More...

double	setup_time () const
	Returns the time to setup the preconditioner. More...

virtual void	turn_into_subsidiary_block_preconditioner (BlockPreconditioner< CRDoubleMatrix > *master_block_prec_pt, const Vector< unsigned > &doftype_in_master_preconditioner_coarse)

virtual void	turn_into_subsidiary_block_preconditioner (BlockPreconditioner< CRDoubleMatrix > *master_block_prec_pt, const Vector< unsigned > &doftype_in_master_preconditioner_coarse, const Vector< Vector< unsigned >> &doftype_coarsen_map_coarse)

Public Member Functions inherited from oomph::DistributableLinearAlgebraObject
	DistributableLinearAlgebraObject ()
	Default constructor - create a distribution. More...

	DistributableLinearAlgebraObject (const DistributableLinearAlgebraObject &matrix)=delete
	Broken copy constructor. More...

void	operator= (const DistributableLinearAlgebraObject &)=delete
	Broken assignment operator. More...

virtual	~DistributableLinearAlgebraObject ()
	Destructor. More...

LinearAlgebraDistribution *	distribution_pt () const
	access to the LinearAlgebraDistribution More...

unsigned	nrow () const
	access function to the number of global rows. More...

unsigned	nrow_local () const
	access function for the num of local rows on this processor. More...

unsigned	nrow_local (const unsigned &p) const
	access function for the num of local rows on this processor. More...

unsigned	first_row () const
	access function for the first row on this processor More...

unsigned	first_row (const unsigned &p) const
	access function for the first row on this processor More...

bool	distributed () const
	distribution is serial or distributed More...

bool	distribution_built () const

void	build_distribution (const LinearAlgebraDistribution *const dist_pt)

void	build_distribution (const LinearAlgebraDistribution &dist)

Private Attributes
Preconditioner *	First_subsidiary_preconditioner_pt

Preconditioner *	Second_subsidiary_preconditioner_pt

Mesh *	Multi_poisson_mesh_pt

Additional Inherited Members
Protected Member Functions inherited from oomph::BlockPreconditioner< MATRIX >
void	set_nmesh (const unsigned &n)

void	set_mesh (const unsigned &i, const Mesh *const mesh_pt, const bool &allow_multiple_element_type_in_mesh=false)

void	set_replacement_dof_block (const unsigned &block_i, const unsigned &block_j, CRDoubleMatrix *replacement_dof_block_pt)

bool	any_mesh_distributed () const

int	internal_dof_number (const unsigned &i_dof) const

unsigned	internal_index_in_dof (const unsigned &i_dof) const

unsigned	internal_block_dimension (const unsigned &b) const

unsigned	internal_dof_block_dimension (const unsigned &i) const

unsigned	master_nrow () const

unsigned	internal_master_dof_number (const unsigned &b) const

const LinearAlgebraDistribution *	internal_preconditioner_matrix_distribution_pt () const

const LinearAlgebraDistribution *	preconditioner_matrix_distribution_pt () const

Protected Member Functions inherited from oomph::DistributableLinearAlgebraObject
void	clear_distribution ()

Protected Attributes inherited from oomph::BlockPreconditioner< MATRIX >
MapMatrix< unsigned, CRDoubleMatrix * >	Replacement_dof_block_pt
	The replacement dof-level blocks. More...

Vector< LinearAlgebraDistribution * >	Block_distribution_pt
	The distribution for the blocks. More...

Vector< Vector< unsigned > >	Block_to_dof_map_coarse

Vector< Vector< unsigned > >	Block_to_dof_map_fine
	Mapping for the block types to the most fine grain dof types. More...

Vector< Vector< unsigned > >	Doftype_coarsen_map_coarse

Vector< Vector< unsigned > >	Doftype_coarsen_map_fine

Vector< LinearAlgebraDistribution * >	Internal_block_distribution_pt
	Storage for the default distribution for each internal block. More...

Vector< LinearAlgebraDistribution * >	Dof_block_distribution_pt

Vector< unsigned >	Allow_multiple_element_type_in_mesh

Vector< const Mesh * >	Mesh_pt

Vector< unsigned >	Ndof_types_in_mesh

unsigned	Internal_nblock_types

unsigned	Internal_ndof_types

Protected Attributes inherited from oomph::Preconditioner
bool	Silent_preconditioner_setup
	Boolean to indicate whether or not the build should be done silently. More...

std::ostream *	Stream_pt
	Pointer to the output stream – defaults to std::cout. More...

Detailed Description

template<typename MATRIX>
class oomph::TwoPlusThree< MATRIX >

///////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////// Block diagonal preconditioner for system with 5 dof types assembled into a 2x2 block system, with (0,0) block containing the first two dof types and the (1,1) block the remaining three dof types.

Constructor & Destructor Documentation

◆ TwoPlusThree() [1/2]

template<typename MATRIX >

oomph::TwoPlusThree< MATRIX >::TwoPlusThree ( )

inline

Constructor for TwoPlusThree.

                  : BlockPreconditioner<MATRIX>(),
    First_subsidiary_preconditioner_pt(0),
    Second_subsidiary_preconditioner_pt(0)
     {
      Multi_poisson_mesh_pt=0;
     } // end_of_constructor

References oomph::TwoPlusThree< MATRIX >::Multi_poisson_mesh_pt.

◆ ~TwoPlusThree()

template<typename MATRIX >

oomph::TwoPlusThree< MATRIX >::~TwoPlusThree ( )

inline

Destructor - delete the diagonal solvers (subsidiary preconditioners)

    {
     this->clean_up_my_memory();
    }

References oomph::TwoPlusThree< MATRIX >::clean_up_my_memory().

◆ TwoPlusThree() [2/2]

template<typename MATRIX >

oomph::TwoPlusThree< MATRIX >::TwoPlusThree ( const TwoPlusThree< MATRIX > & )

inline

Broken copy constructor.

    { 
     BrokenCopy::broken_copy("TwoPlusThree");
    } 

References oomph::BrokenCopy::broken_copy().

Member Function Documentation

◆ clean_up_my_memory()

template<typename MATRIX >

void oomph::TwoPlusThree< MATRIX >::clean_up_my_memory

virtual

clean up the memory

The clean up function.

  {     
   //Clean up subsidiary preconditioners.
   if(First_subsidiary_preconditioner_pt!=0)
    {
     delete First_subsidiary_preconditioner_pt;
     First_subsidiary_preconditioner_pt = 0;
    }
   if(Second_subsidiary_preconditioner_pt!=0)
    {
     delete Second_subsidiary_preconditioner_pt;
     Second_subsidiary_preconditioner_pt = 0;
    }
  } // End of clean_up_my_memory function.

Referenced by oomph::TwoPlusThree< MATRIX >::~TwoPlusThree().

◆ operator=()

template<typename MATRIX >

void oomph::TwoPlusThree< MATRIX >::operator= ( const TwoPlusThree< MATRIX > & )

inline

Broken assignment operator.

    {
     BrokenCopy::broken_assign("TwoPlusThree");
    }

References oomph::BrokenCopy::broken_assign().

◆ preconditioner_solve()

template<typename MATRIX >

void oomph::TwoPlusThree< MATRIX >::preconditioner_solve	(	const DoubleVector &	r,
		DoubleVector &	z
	)

virtual

Apply preconditioner to r, i.e. return z such that P z = r.

Preconditioner solve for the two plus three diagonal preconditioner: Apply preconditioner to r and return z, so that P r = z, where P is the block diagonal matrix constructed from the original linear system.

Implements oomph::Preconditioner.

  {   
   // Get number of blocks
   unsigned n_block = this->nblock_types();
  
   // Split up rhs vector into sub-vectors, arranged to match the matrix blocks.
   Vector<DoubleVector> block_r;
   this->get_block_vectors(r,block_r);
  
   // Create storage for solution of block solves
   Vector<DoubleVector> block_z(n_block);
  
   // Solve (0,0) diagonal block system
   First_subsidiary_preconditioner_pt->preconditioner_solve(block_r[0],
                                                            block_z[0]);
   
   // Solve (1,1) diagonal block system
   Second_subsidiary_preconditioner_pt->preconditioner_solve(block_r[1],
                                                             block_z[1]);
   
   // Copy solution in block vectors block_z back to z
   this->return_block_vectors(block_z,z);
  }

References UniformPSDSelfTest::r.

◆ set_multi_poisson_mesh()

template<typename MATRIX >

void oomph::TwoPlusThree< MATRIX >::set_multi_poisson_mesh ( Mesh * multi_poisson_mesh_pt )

inline

Specify the mesh that contains multi-poisson elements.

   {
    Multi_poisson_mesh_pt=multi_poisson_mesh_pt;
   }

References oomph::TwoPlusThree< MATRIX >::Multi_poisson_mesh_pt.

Referenced by MultiPoissonProblem< ELEMENT >::MultiPoissonProblem().

◆ setup()

template<typename MATRIX >

void oomph::TwoPlusThree< MATRIX >::setup

virtual

Setup the preconditioner.

The setup function.

Implements oomph::Preconditioner.

  {
   // Clean up memory.
   this->clean_up_my_memory();
  
 #ifdef PARANOID
   if (Multi_poisson_mesh_pt == 0)
    {
     std::stringstream err;
     err << "Please set pointer to mesh using set_multi_poisson_mesh(...).\n";
     throw OomphLibError(err.str(),
                         OOMPH_CURRENT_FUNCTION,
                         OOMPH_EXCEPTION_LOCATION);
    }
 #endif 
   
   // The preconditioner works with one mesh; set it!
   this->set_nmesh(1);
   this->set_mesh(0,Multi_poisson_mesh_pt);
  
   // How many dof types do we have?
   unsigned n_dof_types = this->ndof_types();
  
  
 #ifdef PARANOID
   // This preconditioner only works for 5 dof types
   if (n_dof_types!=5)
    {
     std::stringstream tmp;
     tmp << "This preconditioner only works for problems with 5 dof types\n"
         << "Yours has " << n_dof_types;
     throw OomphLibError(tmp.str(),
                         OOMPH_CURRENT_FUNCTION,
                         OOMPH_EXCEPTION_LOCATION);
    }
 #endif
  
  
   // Combine into two blocks, one containing dof types 0 and 1, the
   // final one dof types 2-4. In general we want:
   // dof_to_block_map[dof_type] = block type
   Vector<unsigned> dof_to_block_map(n_dof_types);
   dof_to_block_map[0]=0;
   dof_to_block_map[1]=0;
   dof_to_block_map[2]=1;
   dof_to_block_map[3]=1;
   dof_to_block_map[4]=1;
   this->block_setup(dof_to_block_map);
  
   // Show that it worked ok:
   oomph_info << "Preconditioner has " 
              << this->nblock_types() << " block types\n";
   
   // Create the subsidiary preconditioners
   First_subsidiary_preconditioner_pt= new SuperLUPreconditioner;
   Second_subsidiary_preconditioner_pt= new SuperLUPreconditioner;
   
   // Set diagonal solvers/preconditioners; put in own scope
   // so variable block goes out of scope
   {
    CRDoubleMatrix block;
    this->get_block(0,0,block);
  
    // Set up preconditioner (i.e. lu-decompose the block)
    First_subsidiary_preconditioner_pt->setup(&block);
   }
   {
    CRDoubleMatrix block;
    this->get_block(1,1,block);
    
    // Set up preconditioner (i.e. lu-decompose the block)
    Second_subsidiary_preconditioner_pt->setup(&block);
   }
  
  } // End of setup

References block(), OOMPH_CURRENT_FUNCTION, OOMPH_EXCEPTION_LOCATION, oomph::oomph_info, and tmp.

Member Data Documentation

◆ First_subsidiary_preconditioner_pt

template<typename MATRIX >

Preconditioner* oomph::TwoPlusThree< MATRIX >::First_subsidiary_preconditioner_pt

private

Pointer to preconditioners/inexact solver for (0,0) block

◆ Multi_poisson_mesh_pt

template<typename MATRIX >

Mesh* oomph::TwoPlusThree< MATRIX >::Multi_poisson_mesh_pt

private

Pointer to mesh with preconditionable elements used for classification of dof types.

Referenced by oomph::TwoPlusThree< MATRIX >::set_multi_poisson_mesh(), and oomph::TwoPlusThree< MATRIX >::TwoPlusThree().

◆ Second_subsidiary_preconditioner_pt

template<typename MATRIX >

Preconditioner* oomph::TwoPlusThree< MATRIX >::Second_subsidiary_preconditioner_pt

private

Pointer to preconditioners/inexact solver for (1,1) block

The documentation for this class was generated from the following file:

multi_poisson_block_preconditioners.h

Public Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

template<typename MATRIX> class oomph::TwoPlusThree< MATRIX >

Constructor & Destructor Documentation

◆ TwoPlusThree() [1/2]

◆ ~TwoPlusThree()

◆ TwoPlusThree() [2/2]

Member Function Documentation

◆ clean_up_my_memory()

◆ operator=()

◆ preconditioner_solve()

◆ set_multi_poisson_mesh()

◆ setup()

Member Data Documentation

◆ First_subsidiary_preconditioner_pt

◆ Multi_poisson_mesh_pt

◆ Second_subsidiary_preconditioner_pt

template<typename MATRIX>
class oomph::TwoPlusThree< MATRIX >