#include <multi_poisson_block_preconditioners.h>

Inheritance diagram for oomph::TwoPlusThreeUpperTriangularWithOneLevelSubsidiary< MATRIX >:

Public Member Functions
	TwoPlusThreeUpperTriangularWithOneLevelSubsidiary ()
	Constructor. More...

virtual	~TwoPlusThreeUpperTriangularWithOneLevelSubsidiary ()
	Destructor - delete the preconditioner matrices. More...

void	clean_up_my_memory ()
	Clean up the memory. More...

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

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

void	preconditioner_solve (const DoubleVector &r, DoubleVector &z)
	Apply preconditioner to r. More...

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...

void	setup (DoubleMatrixBase *matrix_pt)

void	setup (const Problem problem_pt, DoubleMatrixBase matrix_pt)

virtual void	setup ()=0

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
MatrixVectorProduct *	Off_diagonal_matrix_vector_product_pt
	Pointer to matrix vector product operators for the off diagonal block. More...

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::TwoPlusThreeUpperTriangularWithOneLevelSubsidiary< MATRIX >

///////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////// Upper block triangular with subsidiary block preconditioners for a system with 5 dof types.

Constructor & Destructor Documentation

◆ TwoPlusThreeUpperTriangularWithOneLevelSubsidiary() [1/2]

template<typename MATRIX >

oomph::TwoPlusThreeUpperTriangularWithOneLevelSubsidiary< MATRIX >::TwoPlusThreeUpperTriangularWithOneLevelSubsidiary ( )

inline

Constructor.

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

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

◆ ~TwoPlusThreeUpperTriangularWithOneLevelSubsidiary()

template<typename MATRIX >

virtual oomph::TwoPlusThreeUpperTriangularWithOneLevelSubsidiary< MATRIX >::~TwoPlusThreeUpperTriangularWithOneLevelSubsidiary ( )

inlinevirtual

Destructor - delete the preconditioner matrices.

    {
     this->clean_up_my_memory();
    }

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

◆ TwoPlusThreeUpperTriangularWithOneLevelSubsidiary() [2/2]

template<typename MATRIX >

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

inline

Broken copy constructor.

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

References oomph::BrokenCopy::broken_copy().

Member Function Documentation

◆ clean_up_my_memory()

template<typename MATRIX >

void oomph::TwoPlusThreeUpperTriangularWithOneLevelSubsidiary< MATRIX >::clean_up_my_memory

Clean up the memory.

The clean up function.

  {     
   // Delete off-diagonal matrix vector product
   if(Off_diagonal_matrix_vector_product_pt!= 0)
    {
     delete Off_diagonal_matrix_vector_product_pt;
     Off_diagonal_matrix_vector_product_pt = 0;
    }
  
   //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::TwoPlusThreeUpperTriangularWithOneLevelSubsidiary< MATRIX >::~TwoPlusThreeUpperTriangularWithOneLevelSubsidiary().

◆ operator=()

template<typename MATRIX >

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

inline

Broken assignment operator.

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

References oomph::BrokenCopy::broken_assign().

◆ preconditioner_solve()

template<typename MATRIX >

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

virtual

Apply preconditioner to r.

Preconditioner solve.

Implements oomph::Preconditioner.

  {
   // Solve "bottom right" (1,1) diagonal block system, using the 
   // subsidiary block preconditioner that acts on the
   // "bottom right" 3x3 sub-system (only!). The subsidiary preconditioner 
   // will extract the relevant (3x1) "sub-vectors" from the "big" (5x1)
   // vector z and treat it as the rhs, r, of P y = z
   // where P is 3x3 a block matrix. Once the system is solved,
   // the result is automatically put back into the appropriate places 
   // of the "big" (5x1) vector y:
   Second_subsidiary_preconditioner_pt->preconditioner_solve(z,y);
     
   // Now extract the "bottom" (3x1) block vector from the full-size (5x1)
   // solution vector that we've just computed -- note that index 1
   // refers to the block enumeration in the current preconditioner
   // (which has two blocks!)
   DoubleVector block_y;
   this->get_block_vector(1,y,block_y);
  
   // Evaluate matrix vector product of just-extracted (3x1) solution 
   // vector with off-diagonal block and store in temporary vector
   DoubleVector temp;
   Off_diagonal_matrix_vector_product_pt->multiply(block_y,temp);
  
   // Extract "upper" (2x1) block vector from full-size (5x1) rhs 
   // vector (as passed into this function)...
   DoubleVector block_z;
   this->get_block_vector(0,z,block_z);
  
   // ...and subtract matrix vector product computed above
   block_z -= temp;   
  
   // Block solve for first diagonal block. Since the associated subsidiary 
   // preconditioner is a block preconditioner itself, it will extract 
   // the required (2x1) block from a "big" (5x1) rhs vector.
   // Therefore we first put the actual (2x1) rhs vector block_z into a
   // "big" (5x1) vector big_z whose row distribution matches that of the
   // "big" right hand side vector, z, that was passed into this function.
   DoubleVector big_z(z.distribution_pt());
   this->return_block_vector(0,block_z,big_z);
  
   // Now apply the subsidiary block preconditioner that acts on the
   // "upper left" (2x2) sub-system (only!). The subsidiary preconditioner 
   // will extract the relevant (2x1) block vector from the "big" (5x1)
   // vector big_r and treat it as the rhs, z, of its P y = z
   // where P is upper left 2x2 block diagonal of the big system. 
   // Once the system is solved, the result is automatically put back 
   // into the appropriate places of the "big" (5x1) vector y which is 
   // returned by the current function, so no further action is required.
   First_subsidiary_preconditioner_pt->preconditioner_solve(big_z,y);
  }

References oomph::DistributableLinearAlgebraObject::distribution_pt(), and y.

◆ set_multi_poisson_mesh()

template<typename MATRIX >

void oomph::TwoPlusThreeUpperTriangularWithOneLevelSubsidiary< 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::TwoPlusThreeUpperTriangularWithOneLevelSubsidiary< MATRIX >::Multi_poisson_mesh_pt.

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

◆ setup() [1/4]

template<typename MATRIX >

void oomph::TwoPlusThreeUpperTriangularWithOneLevelSubsidiary< MATRIX >::setup

virtual

Setup the preconditioner.

The setup function.

Implements oomph::Preconditioner.

  {
   // clean the 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);
  
   // number of dof types  
   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 "dof blocks" into two compound 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);
   
   // Create the subsidiary block preconditioners.  
   {
    // Block upper triangular block preconditioner for compound 
    // 2x2 top left block in "big" 5x5 matrix
    UpperTriangular<CRDoubleMatrix>* block_prec_pt=
     new UpperTriangular<CRDoubleMatrix>;
    First_subsidiary_preconditioner_pt=block_prec_pt;
  
    // Set mesh
    block_prec_pt->set_multi_poisson_mesh(Multi_poisson_mesh_pt);
    
    // Turn into a subsidiary preconditioner, declaring which
    // of the five dof types in the present (master) preconditioner
    // correspond to the dof types in the subsidiary block preconditioner:
    // dof_map[dof_block_ID_in_subsdiary] = dof_block_ID_in_master. Also 
    // pass pointer to present (master) preconditioner.
    unsigned n_sub_dof_types=2;
    Vector<unsigned> dof_map(n_sub_dof_types);
    dof_map[0]=0;
    dof_map[1]=1;
    block_prec_pt->turn_into_subsidiary_block_preconditioner(this,dof_map);
     
    // Setup: Pass pointer to full-size matrix!
    block_prec_pt->setup(this->matrix_pt());
   }
  
   {
    // Block upper triangular for 3x3 bottom right block in "big" 5x5 matrix
    UpperTriangular<CRDoubleMatrix>* block_prec_pt=
     new UpperTriangular<CRDoubleMatrix>;
    Second_subsidiary_preconditioner_pt=block_prec_pt;
    
    // Set mesh
    block_prec_pt->set_multi_poisson_mesh(Multi_poisson_mesh_pt);
    
    // Turn second_sub into a subsidiary preconditioner, declaring which
    // of the five dof types in the present (master) preconditioner
    // correspond to the dof types in the subsidiary block preconditioner:
    // dof_map[dof_block_ID_in_subsdiary] = dof_block_ID_in_master. Also 
    // pass pointer to present (master) preconditioner.
    unsigned n_sub_dof_types=3;
    Vector<unsigned> dof_map(n_sub_dof_types);
    dof_map[0]=2;
    dof_map[1]=3;
    dof_map[2]=4;
    block_prec_pt->turn_into_subsidiary_block_preconditioner(this,dof_map);    
  
    // Setup: Pass pointer to full-size matrix!
    block_prec_pt->setup(this->matrix_pt());
   }
   
   // Setup the off-diagonal mat vec operator
   {
    // Get the off-diagonal block: the top-right block in the present
    // block preconditioner (which views the system matrix as comprising
    // 2x2 blocks).
    CRDoubleMatrix block_matrix = this->get_block(0,1);
    
    // Create matrix vector product
    Off_diagonal_matrix_vector_product_pt = new MatrixVectorProduct;
    
    // Setup: Final argument indicates block column in the present
    // block preconditioner (which views the system matrix as comprising
    // 2x2 blocks).
    unsigned block_column_index=1;
    this->setup_matrix_vector_product(
     Off_diagonal_matrix_vector_product_pt,&block_matrix,block_column_index);
   }
  
  }

References OOMPH_CURRENT_FUNCTION, OOMPH_EXCEPTION_LOCATION, oomph::UpperTriangular< MATRIX >::set_multi_poisson_mesh(), oomph::UpperTriangular< MATRIX >::setup(), tmp, and oomph::BlockPreconditioner< MATRIX >::turn_into_subsidiary_block_preconditioner().

◆ setup() [2/4]

template<typename MATRIX >

virtual void oomph::Preconditioner::setup

virtual

Setup the preconditioner. Pure virtual generic interface function.

Implements oomph::Preconditioner.

◆ setup() [3/4]

template<typename MATRIX >

void oomph::Preconditioner::setup

inlinevirtual

Compatability layer for old preconditioners where problem pointers were needed. The problem pointer is only used to get a communicator pointer.

Implements oomph::Preconditioner.

     {
       ObsoleteCode::obsolete();
       setup(matrix_pt);
     }

◆ setup() [4/4]

template<typename MATRIX >

void oomph::Preconditioner::setup

inlinevirtual

Setup the preconditioner: store the matrix pointer and the communicator pointer then call preconditioner specific setup() function.

Implements oomph::Preconditioner.

     {
       // Store matrix pointer
       set_matrix_pt(matrix_pt);
  
       // Extract and store communicator pointer
       DistributableLinearAlgebraObject* dist_obj_pt =
         dynamic_cast<DistributableLinearAlgebraObject*>(matrix_pt);
       if (dist_obj_pt != 0)
       {
         set_comm_pt(dist_obj_pt->distribution_pt()->communicator_pt());
       }
       else
       {
         set_comm_pt(0);
       }
  
       double setup_time_start = TimingHelpers::timer();
       setup();
       double setup_time_finish = TimingHelpers::timer();
       Setup_time = setup_time_finish - setup_time_start;
     }

Member Data Documentation

◆ First_subsidiary_preconditioner_pt

template<typename MATRIX >

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

private

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

◆ Multi_poisson_mesh_pt

template<typename MATRIX >

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

private

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

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

◆ Off_diagonal_matrix_vector_product_pt

template<typename MATRIX >

MatrixVectorProduct* oomph::TwoPlusThreeUpperTriangularWithOneLevelSubsidiary< MATRIX >::Off_diagonal_matrix_vector_product_pt

private

Pointer to matrix vector product operators for the off diagonal block.

◆ Second_subsidiary_preconditioner_pt

template<typename MATRIX >

Preconditioner* oomph::TwoPlusThreeUpperTriangularWithOneLevelSubsidiary< 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::TwoPlusThreeUpperTriangularWithOneLevelSubsidiary< MATRIX >

Constructor & Destructor Documentation

◆ TwoPlusThreeUpperTriangularWithOneLevelSubsidiary() [1/2]

◆ ~TwoPlusThreeUpperTriangularWithOneLevelSubsidiary()

◆ TwoPlusThreeUpperTriangularWithOneLevelSubsidiary() [2/2]

Member Function Documentation

◆ clean_up_my_memory()

◆ operator=()

◆ preconditioner_solve()

◆ set_multi_poisson_mesh()

◆ setup() [1/4]

◆ setup() [2/4]

◆ setup() [3/4]

◆ setup() [4/4]

Member Data Documentation

◆ First_subsidiary_preconditioner_pt

◆ Multi_poisson_mesh_pt

◆ Off_diagonal_matrix_vector_product_pt

◆ Second_subsidiary_preconditioner_pt

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