ug4
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#include <line_smoothers.h>
Public Types | |
typedef TAlgebra | algebra_type |
typedef IPreconditioner< TAlgebra > | base_type |
Base type. | |
typedef TDomain | domain_type |
Domain. | |
typedef IPreconditioner< TAlgebra >::matrix_operator_type | matrix_operator_type |
Matrix Operator type. | |
typedef TAlgebra::matrix_type | matrix_type |
typedef TAlgebra::vector_type | vector_type |
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typedef TAlgebra | algebra_type |
Algebra type. | |
typedef MatrixOperator< matrix_type, vector_type > | matrix_operator_type |
Matrix Operator type. | |
typedef TAlgebra::matrix_type | matrix_type |
Matrix type. | |
typedef TAlgebra::vector_type | vector_type |
Vector type. | |
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typedef TAlgebra::vector_type | codomain_function_type |
Range space. | |
typedef TAlgebra::vector_type | domain_function_type |
Domain space. | |
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typedef TAlgebra | algebra_type |
type of algebra | |
typedef TAlgebra::matrix_type | matrix_type |
type of matrix | |
typedef TAlgebra::vector_type | vector_type |
type of vector | |
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typedef TAlgebra::vector_type | vector_type |
type of vector | |
Public Member Functions | |
virtual SmartPtr< ILinearIterator< vector_type > > | clone () |
clone | |
size_t | get_num_backwardx () |
size_t | get_num_backwardy () |
size_t | get_num_backwardz () |
size_t | get_num_forwardx () |
size_t | get_num_forwardy () |
size_t | get_num_forwardz () |
LineVanka (SmartPtr< ApproximationSpace< TDomain > > approxSpace) | |
number | relax () |
void | set_num_steps (size_t forwardx, size_t backwardx) |
void | set_num_steps (size_t forwardx, size_t backwardx, size_t forwardy, size_t backwardy) |
void | set_num_steps (size_t forwardx, size_t backwardx, size_t forwardy, size_t backwardy, size_t forwardz, size_t backwardz) |
void | set_relax (number omega) |
set m_relaxation parameter | |
virtual bool | supports_parallel () const |
returns if parallel solving is supported | |
bool | update (size_t xsize) |
~LineVanka () | |
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virtual bool | apply (vector_type &c, const vector_type &d) |
compute new correction c = B*d | |
virtual bool | apply_update_defect (vector_type &c, vector_type &d) |
compute new correction c = B*d and update defect d:= d - L*c | |
SmartPtr< MatrixOperator< matrix_type, vector_type > > | approx_operator () |
underlying matrix based operator used for the preconditioner | |
SmartPtr< MatrixOperator< matrix_type, vector_type > > | defect_operator () |
underlying matrix based operator for calculation of defect | |
virtual bool | init (SmartPtr< ILinearOperator< vector_type > > J, const vector_type &u) |
implements the ILinearIterator-interface for matrix based preconditioner | |
bool | init (SmartPtr< ILinearOperator< vector_type > > L) |
implements the ILinearIterator-interface for matrix based preconditioner | |
bool | init (SmartPtr< MatrixOperator< matrix_type, vector_type > > Op) |
initializes the preconditioner for a matrix based operator | |
IPreconditioner () | |
default constructor | |
IPreconditioner (const IPreconditioner< TAlgebra > &parent) | |
clone constructor | |
IPreconditioner (SmartPtr< IDebugWriter< algebra_type > > spDebugWriter) | |
constructor setting debug writer | |
virtual void | set_approximation (SmartPtr< MatrixOperator< matrix_type, vector_type > > approx) |
virtual | ~IPreconditioner () |
virtual destructor | |
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virtual std::string | config_string () const |
SmartPtr< IDamping< TAlgebra::vector_type, TAlgebra::vector_type > > | damping () |
returns the scaling | |
ILinearIterator () | |
constructor | |
ILinearIterator (const ILinearIterator< TAlgebra::vector_type, TAlgebra::vector_type > &parent) | |
copy constructor | |
virtual bool | init (SmartPtr< ILinearOperator< TAlgebra::vector_type, TAlgebra::vector_type > > J, const TAlgebra::vector_type &u)=0 |
initialize for operator J(u) and linearization point u | |
virtual bool | init (SmartPtr< ILinearOperator< TAlgebra::vector_type, TAlgebra::vector_type > > L)=0 |
initialize for linear operator L | |
void | set_damp (number factor) |
sets the damping to a constant factor | |
void | set_damp (SmartPtr< IDamping< TAlgebra::vector_type, TAlgebra::vector_type > > spScaling) |
sets a scaling for the correction | |
virtual | ~ILinearIterator () |
virtual destructor | |
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SmartPtr< IDebugWriter< algebra_type > > | debug_writer () |
returns the debug writer | |
ConstSmartPtr< IDebugWriter< algebra_type > > | debug_writer () const |
bool | debug_writer_valid () const |
returns true if the debug writer is set | |
DebugWritingObject () | |
DebugWritingObject (const DebugWritingObject< algebra_type > &parent) | |
clone constructor | |
DebugWritingObject (SmartPtr< IDebugWriter< algebra_type > > spDebugWriter) | |
virtual void | set_debug (SmartPtr< IDebugWriter< algebra_type > > spDebugWriter) |
set debug writer | |
virtual | ~DebugWritingObject () |
virtual destructor | |
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virtual void | set_debug (SmartPtr< IVectorDebugWriter< vector_type > > spDebugWriter) |
set debug writer | |
SmartPtr< IVectorDebugWriter< vector_type > > | vector_debug_writer () |
returns the debug writer | |
ConstSmartPtr< IVectorDebugWriter< vector_type > > | vector_debug_writer () const |
bool | vector_debug_writer_valid () const |
returns true if the debug writer is set | |
VectorDebugWritingObject () | |
VectorDebugWritingObject (SmartPtr< IVectorDebugWriter< vector_type > > spDebugWriter) | |
void | write_debug (const vector_type &vec, const char *filename) |
writing debug output for a vector (if debug writer set) | |
virtual | ~VectorDebugWritingObject () |
virtual destructor | |
Protected Member Functions | |
bool | linevanka_step (const matrix_type &A, vector_type &x, const vector_type &b) |
virtual const char * | name () const |
returns the name of iterator | |
virtual bool | postprocess () |
cleans the operator | |
virtual bool | preprocess (SmartPtr< MatrixOperator< matrix_type, vector_type > > pOp) |
initializes the preconditioner | |
virtual bool | step (SmartPtr< MatrixOperator< matrix_type, vector_type > > pOp, vector_type &c, const vector_type &d) |
computes a new correction c = B*d | |
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void | enter_debug_writer_section (const char *secDir) |
enters a debugging section | |
void | enter_debug_writer_section (std::string secDir) |
enters a debugging section | |
void | leave_debug_writer_section () |
leaves a debugging section | |
void | write_debug (const matrix_type &mat, const char *filename) |
write debug output for a matrix (if debug writer set) | |
void | write_debug (const matrix_type &mat, std::string name) |
write debug output for a matrix (if debug writer set) | |
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void | enter_vector_debug_writer_section (const char *secDir) |
enters a debugging section | |
void | enter_vector_debug_writer_section (std::string secDir) |
enters a debugging section | |
void | leave_vector_debug_writer_section () |
leaves a debugging section | |
void | print_debugger_message (const char *msg) |
prints a debugger message (listing all the sections) | |
void | print_debugger_message (std::string msg) |
prints a debugger message (listing all the sections) | |
virtual void | write_debug (const vector_type &vec, std::string name) |
writing debug output for a vector (if debug writer set) | |
Protected Attributes | |
std::vector< size_t > | indY |
std::vector< size_t > | indZ |
matrix_type | m_A |
size_t | m_ind_end |
bool | m_init |
size_t | m_nr_backwardx |
size_t | m_nr_backwardy |
size_t | m_nr_backwardz |
size_t | m_nr_forwardx |
size_t | m_nr_forwardy |
size_t | m_nr_forwardz |
number | m_relax |
SmartPtr< ApproximationSpace< TDomain > > | m_spApproxSpace |
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bool | m_bInit |
init flag indicating if init has been called | |
bool | m_bOtherApproxOperator |
SmartPtr< MatrixOperator< matrix_type, vector_type > > | m_spApproxOperator |
underlying matrix based operator used for the preconditioner | |
SmartPtr< ILinearOperator< vector_type > > | m_spDefectOperator |
underlying matrix based operator for calculation of defect | |
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SmartPtr< IDamping< TAlgebra::vector_type, TAlgebra::vector_type > > | m_spDamping |
the scaling | |
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SmartPtr< IDebugWriter< algebra_type > > | m_spDebugWriter |
Debug Writer. | |
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SmartPtr< IVectorDebugWriter< vector_type > > | m_spVectorDebugWriter |
Debug Writer. | |
Static Protected Attributes | |
static const int | dim = domain_type::dim |
world dimension | |
typedef TAlgebra ug::LineVanka< TDomain, TAlgebra >::algebra_type |
typedef IPreconditioner<TAlgebra> ug::LineVanka< TDomain, TAlgebra >::base_type |
Base type.
typedef TDomain ug::LineVanka< TDomain, TAlgebra >::domain_type |
typedef IPreconditioner<TAlgebra>::matrix_operator_type ug::LineVanka< TDomain, TAlgebra >::matrix_operator_type |
Matrix Operator type.
typedef TAlgebra::matrix_type ug::LineVanka< TDomain, TAlgebra >::matrix_type |
typedef TAlgebra::vector_type ug::LineVanka< TDomain, TAlgebra >::vector_type |
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References ug::LineVanka< TDomain, TAlgebra >::m_init, ug::LineVanka< TDomain, TAlgebra >::m_nr_backwardx, ug::LineVanka< TDomain, TAlgebra >::m_nr_backwardy, ug::LineVanka< TDomain, TAlgebra >::m_nr_backwardz, ug::LineVanka< TDomain, TAlgebra >::m_nr_forwardx, ug::LineVanka< TDomain, TAlgebra >::m_nr_forwardy, ug::LineVanka< TDomain, TAlgebra >::m_nr_forwardz, ug::LineVanka< TDomain, TAlgebra >::m_relax, and ug::LineVanka< TDomain, TAlgebra >::m_spApproxSpace.
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clone
Implements ug::ILinearIterator< TAlgebra::vector_type >.
References ug::ILinearIterator< TAlgebra::vector_type >::damping(), ug::DebugWritingObject< TAlgebra >::debug_writer(), ug::LineVanka< TDomain, TAlgebra >::get_num_backwardx(), ug::LineVanka< TDomain, TAlgebra >::get_num_backwardy(), ug::LineVanka< TDomain, TAlgebra >::get_num_backwardz(), ug::LineVanka< TDomain, TAlgebra >::get_num_forwardx(), ug::LineVanka< TDomain, TAlgebra >::get_num_forwardy(), ug::LineVanka< TDomain, TAlgebra >::get_num_forwardz(), ug::LineVanka< TDomain, TAlgebra >::m_spApproxSpace, and ug::LineVanka< TDomain, TAlgebra >::relax().
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References ug::LineVanka< TDomain, TAlgebra >::m_nr_backwardx.
Referenced by ug::LineVanka< TDomain, TAlgebra >::clone().
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References ug::LineVanka< TDomain, TAlgebra >::m_nr_backwardy.
Referenced by ug::LineVanka< TDomain, TAlgebra >::clone().
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References ug::LineVanka< TDomain, TAlgebra >::m_nr_backwardz.
Referenced by ug::LineVanka< TDomain, TAlgebra >::clone().
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References ug::LineVanka< TDomain, TAlgebra >::m_nr_forwardx.
Referenced by ug::LineVanka< TDomain, TAlgebra >::clone().
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References ug::LineVanka< TDomain, TAlgebra >::m_nr_forwardy.
Referenced by ug::LineVanka< TDomain, TAlgebra >::clone().
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References ug::LineVanka< TDomain, TAlgebra >::m_nr_forwardz.
Referenced by ug::LineVanka< TDomain, TAlgebra >::clone().
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References ug::LineVanka< TDomain, TAlgebra >::dim, ug::LineVanka< TDomain, TAlgebra >::indY, ug::LineVanka< TDomain, TAlgebra >::indZ, ug::InverseMatMult(), ug::LineVanka< TDomain, TAlgebra >::m_ind_end, ug::LineVanka< TDomain, TAlgebra >::m_init, ug::LineVanka< TDomain, TAlgebra >::m_nr_backwardx, ug::LineVanka< TDomain, TAlgebra >::m_nr_backwardy, ug::LineVanka< TDomain, TAlgebra >::m_nr_backwardz, ug::LineVanka< TDomain, TAlgebra >::m_nr_forwardx, ug::LineVanka< TDomain, TAlgebra >::m_nr_forwardy, ug::LineVanka< TDomain, TAlgebra >::m_nr_forwardz, ug::LineVanka< TDomain, TAlgebra >::m_relax, ug::MatMultAdd(), ug::MAXBLOCKSIZE, s, ug::DenseMatrix< TStorage >::subassign(), and ug::LineVanka< TDomain, TAlgebra >::update().
Referenced by ug::LineVanka< TDomain, TAlgebra >::step().
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returns the name of iterator
This method returns the name of the iterator operator. This function is typically needed, when the iterator operator is used inside of another operator and some debug output should be printed
Implements ug::IPreconditioner< TAlgebra >.
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cleans the operator
Implements ug::IPreconditioner< TAlgebra >.
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initializes the preconditioner
This method is used to initialize the preconditioner. Usually, here are performed computationally expensive operations, that should only be computed once for an underlying matrix (e.g. LU factorization), while the preconditioner will by applied (using 'step'-method) several times.
[in] | mat | underlying matrix (i.e. L in L*u = f) |
Implements ug::IPreconditioner< TAlgebra >.
References ug::LineVanka< TDomain, TAlgebra >::m_A, ug::MakeConsistent(), pcl::NumProcs(), and ug::SetDirichletRow().
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References ug::LineVanka< TDomain, TAlgebra >::m_relax.
Referenced by ug::LineVanka< TDomain, TAlgebra >::clone().
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References ug::LineVanka< TDomain, TAlgebra >::m_nr_backwardx, ug::LineVanka< TDomain, TAlgebra >::m_nr_backwardy, ug::LineVanka< TDomain, TAlgebra >::m_nr_backwardz, ug::LineVanka< TDomain, TAlgebra >::m_nr_forwardx, ug::LineVanka< TDomain, TAlgebra >::m_nr_forwardy, and ug::LineVanka< TDomain, TAlgebra >::m_nr_forwardz.
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References ug::LineVanka< TDomain, TAlgebra >::m_nr_backwardx, ug::LineVanka< TDomain, TAlgebra >::m_nr_backwardy, ug::LineVanka< TDomain, TAlgebra >::m_nr_backwardz, ug::LineVanka< TDomain, TAlgebra >::m_nr_forwardx, ug::LineVanka< TDomain, TAlgebra >::m_nr_forwardy, and ug::LineVanka< TDomain, TAlgebra >::m_nr_forwardz.
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References ug::LineVanka< TDomain, TAlgebra >::m_nr_backwardx, ug::LineVanka< TDomain, TAlgebra >::m_nr_backwardy, ug::LineVanka< TDomain, TAlgebra >::m_nr_backwardz, ug::LineVanka< TDomain, TAlgebra >::m_nr_forwardx, ug::LineVanka< TDomain, TAlgebra >::m_nr_forwardy, and ug::LineVanka< TDomain, TAlgebra >::m_nr_forwardz.
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set m_relaxation parameter
References ug::LineVanka< TDomain, TAlgebra >::m_relax.
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computes a new correction c = B*d
This method computes a new correction c = B*d. It can only be called, when the preprocess has been done.
[in] | mat | underlying matrix (i.e. L in L*u = f) |
[out] | c | correction |
[in] | d | defect |
Implements ug::IPreconditioner< TAlgebra >.
References ug::LineVanka< TDomain, TAlgebra >::linevanka_step(), ug::LineVanka< TDomain, TAlgebra >::m_A, pcl::NumProcs(), and ug::PST_UNIQUE.
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returns if parallel solving is supported
Implements ug::ILinearIterator< TAlgebra::vector_type >.
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References ug::LineVanka< TDomain, TAlgebra >::dim, ug::LineVanka< TDomain, TAlgebra >::indY, ug::LineVanka< TDomain, TAlgebra >::indZ, ug::GridLevel::LEVEL, ug::LineVanka< TDomain, TAlgebra >::m_ind_end, ug::LineVanka< TDomain, TAlgebra >::m_init, ug::LineVanka< TDomain, TAlgebra >::m_nr_backwardx, ug::LineVanka< TDomain, TAlgebra >::m_nr_backwardy, ug::LineVanka< TDomain, TAlgebra >::m_nr_backwardz, ug::LineVanka< TDomain, TAlgebra >::m_nr_forwardx, ug::LineVanka< TDomain, TAlgebra >::m_nr_forwardy, ug::LineVanka< TDomain, TAlgebra >::m_nr_forwardz, and ug::LineVanka< TDomain, TAlgebra >::m_spApproxSpace.
Referenced by ug::LineVanka< TDomain, TAlgebra >::linevanka_step().
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world dimension
Referenced by ug::LineVanka< TDomain, TAlgebra >::linevanka_step(), and ug::LineVanka< TDomain, TAlgebra >::update().
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Referenced by ug::LineVanka< TDomain, TAlgebra >::get_num_backwardx(), ug::LineVanka< TDomain, TAlgebra >::LineVanka(), ug::LineVanka< TDomain, TAlgebra >::linevanka_step(), ug::LineVanka< TDomain, TAlgebra >::set_num_steps(), ug::LineVanka< TDomain, TAlgebra >::set_num_steps(), ug::LineVanka< TDomain, TAlgebra >::set_num_steps(), and ug::LineVanka< TDomain, TAlgebra >::update().
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Referenced by ug::LineVanka< TDomain, TAlgebra >::get_num_backwardy(), ug::LineVanka< TDomain, TAlgebra >::LineVanka(), ug::LineVanka< TDomain, TAlgebra >::linevanka_step(), ug::LineVanka< TDomain, TAlgebra >::set_num_steps(), ug::LineVanka< TDomain, TAlgebra >::set_num_steps(), ug::LineVanka< TDomain, TAlgebra >::set_num_steps(), and ug::LineVanka< TDomain, TAlgebra >::update().
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Referenced by ug::LineVanka< TDomain, TAlgebra >::get_num_backwardz(), ug::LineVanka< TDomain, TAlgebra >::LineVanka(), ug::LineVanka< TDomain, TAlgebra >::linevanka_step(), ug::LineVanka< TDomain, TAlgebra >::set_num_steps(), ug::LineVanka< TDomain, TAlgebra >::set_num_steps(), ug::LineVanka< TDomain, TAlgebra >::set_num_steps(), and ug::LineVanka< TDomain, TAlgebra >::update().
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Referenced by ug::LineVanka< TDomain, TAlgebra >::get_num_forwardx(), ug::LineVanka< TDomain, TAlgebra >::LineVanka(), ug::LineVanka< TDomain, TAlgebra >::linevanka_step(), ug::LineVanka< TDomain, TAlgebra >::set_num_steps(), ug::LineVanka< TDomain, TAlgebra >::set_num_steps(), ug::LineVanka< TDomain, TAlgebra >::set_num_steps(), and ug::LineVanka< TDomain, TAlgebra >::update().
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Referenced by ug::LineVanka< TDomain, TAlgebra >::get_num_forwardy(), ug::LineVanka< TDomain, TAlgebra >::LineVanka(), ug::LineVanka< TDomain, TAlgebra >::linevanka_step(), ug::LineVanka< TDomain, TAlgebra >::set_num_steps(), ug::LineVanka< TDomain, TAlgebra >::set_num_steps(), ug::LineVanka< TDomain, TAlgebra >::set_num_steps(), and ug::LineVanka< TDomain, TAlgebra >::update().
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Referenced by ug::LineVanka< TDomain, TAlgebra >::get_num_forwardz(), ug::LineVanka< TDomain, TAlgebra >::LineVanka(), ug::LineVanka< TDomain, TAlgebra >::linevanka_step(), ug::LineVanka< TDomain, TAlgebra >::set_num_steps(), ug::LineVanka< TDomain, TAlgebra >::set_num_steps(), ug::LineVanka< TDomain, TAlgebra >::set_num_steps(), and ug::LineVanka< TDomain, TAlgebra >::update().
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