SOFA API  905b6f2f
Open source framework for multi-physics simuation
sofa::core::behavior::LinearSolver Class Referenceabstract

#include <LinearSolver.h>

Abstract interface for linear system solvers. More...

Inheritance diagram for sofa::core::behavior::LinearSolver:

Detailed Description

Abstract interface for linear system solvers.

Protected Attributes

bool frozen
 
- Protected Attributes inherited from sofa::core::objectmodel::BaseObject
SingleLink< BaseObject, BaseContext, BaseLink::FLAG_DOUBLELINKl_context
 
LinkSlaves l_slaves
 
SingleLink< BaseObject, BaseObject, BaseLink::FLAG_DOUBLELINKl_master
 
- Protected Attributes inherited from sofa::core::objectmodel::Base
VecData m_vecData
 List of fields (Data instances) More...
 
MapData m_aliasData
 name -> Data multi-map (includes names and aliases) More...
 
VecLink m_vecLink
 List of links. More...
 
MapLink m_aliasLink
 name -> Link multi-map (includes names and aliases) More...
 

Public Member Functions

 SOFA_ABSTRACT_CLASS (LinearSolver, BaseLinearSolver)
 
virtual void resetSystem ()=0
 Reset the current linear system. More...
 
virtual void setSystemMBKMatrix (const MechanicalParams *mparams)=0
 
virtual void rebuildSystem (SReal, SReal)
 
virtual bool isAsyncSolver ()
 Indicate if the solver update the system in parallel. More...
 
virtual bool hasUpdatedMatrix ()
 Indicate if the solver updated the system after the last call of setSystemMBKMatrix (should return true if isParallelSolver return false) More...
 
virtual void updateSystemMatrix ()
 This function is use for the preconditioner it must be called at each time step event if setSystemMBKMatrix is not called. More...
 
virtual void setSystemRHVector (core::MultiVecDerivId v)=0
 Set the linear system right-hand term vector, from the values contained in the (Mechanical/Physical)State objects. More...
 
virtual void setSystemLHVector (core::MultiVecDerivId v)=0
 
virtual void solveSystem ()=0
 Solve the system as constructed using the previous methods. More...
 
virtual void init_partial_solve ()
 
virtual void partial_solve (std::list< int > &, std::list< int > &, bool)
 
virtual void invertSystem ()
 Invert the system, this method is optional because it's called when solveSystem() is called for the first time. More...
 
virtual bool addMInvJt (defaulttype::BaseMatrix *result, defaulttype::BaseMatrix *J, SReal fact)
 
virtual bool buildComplianceMatrix (const sofa::core::ConstraintParams *cparams, defaulttype::BaseMatrix *result, SReal fact)
 
virtual void applyConstraintForce (const sofa::core::ConstraintParams *, sofa::core::MultiVecDerivId, const defaulttype::BaseVector *)
 Apply the contactforce dx = Minv * J^t * f and store the resut in dx VecId. More...
 
virtual void computeResidual (const core::ExecParams *, defaulttype::BaseVector *)
 
virtual bool addJMInvJt (defaulttype::BaseMatrix *result, defaulttype::BaseMatrix *J, SReal fact)
 
virtual defaulttype::BaseMatrixgetSystemBaseMatrix ()
 Get the linear system matrix, or nullptr if this solver does not build it. More...
 
virtual const behavior::MultiMatrixAccessorgetSystemMultiMatrixAccessor () const
 Get the MultiMatrix view of the linear system, or nullptr if this solved does not build it. More...
 
virtual defaulttype::BaseVectorgetSystemRHBaseVector ()
 Get the linear system right-hand term vector, or nullptr if this solver does not build it. More...
 
virtual defaulttype::BaseVectorgetSystemLHBaseVector ()
 Get the linear system left-hand term vector, or nullptr if this solver does not build it. More...
 
virtual defaulttype::BaseMatrixgetSystemInverseBaseMatrix ()
 Get the linear system inverse matrix, or nullptr if this solver does not build it. More...
 
virtual bool readFile (std::istream &)
 Read the Matrix solver from a file. More...
 
virtual bool writeFile (std::ostream &)
 Read the Matrix solver from a file. More...
 
virtual void freezeSystemMatrix ()
 Ask the solver to no longer update the system matrix. More...
 
- Public Member Functions inherited from sofa::core::behavior::BaseLinearSolver
 SOFA_ABSTRACT_CLASS (BaseLinearSolver, objectmodel::BaseObject)
 
bool insertInNode (objectmodel::BaseNode *node) override
 
bool removeInNode (objectmodel::BaseNode *node) override
 
- Public Member Functions inherited from sofa::core::objectmodel::BaseObject
 SOFA_CLASS (BaseObject, Base)
 
virtual void draw (const core::visual::VisualParams *)
 Render internal data of this object, for debugging purposes. More...
 
virtual void computeBBox (const core::ExecParams *, bool=false)
 
void setSrc (const std::string &v, std::vector< std::string > *attributeList=nullptr)
 Sets a source Object and parses it to collect dependent Data. More...
 
void setSrc (const std::string &v, const BaseObject *loader, std::vector< std::string > *attributeList=nullptr)
 
void * findLinkDestClass (const BaseClass *destType, const std::string &path, const BaseLink *link) override
 
virtual std::string getPathName () const
 Return the full path name of this object. More...
 
template<class T >
T::SPtr searchLocal () const
 Local search of an object of the given type. More...
 
template<class T >
T::SPtr searchUp () const
 Upward search of an object of the given type, starting from the local context. More...
 
template<class T >
T::SPtr searchDown () const
 Downward search of an object of the given type, starting from the local context. More...
 
template<class T >
T::SPtr searchFromRoot () const
 
template<class T >
T::SPtr searchInParents () const
 
template<class T >
helper::vector< typename T::SPtr > searchAllLocal () const
 Local search of all objects of the given type. More...
 
template<class T >
helper::vector< typename T::SPtr > searchAllUp () const
 Upward search of all objects of the given type, starting from the local context. More...
 
template<class T >
helper::vector< typename T::SPtr > searchAllDown () const
 Downward search of all objects of the given type, starting from the local context. More...
 
template<class T >
helper::vector< typename T::SPtr > searchAllFromRoot () const
 Search of all objects of the given type, starting from the root. More...
 
template<class T >
helper::vector< typename T::SPtr > searchAllInParents () const
 
template<class T >
helper::vector< typename T::SPtr > searchAllLocal (const Tag &t) const
 Local search of all objects of the given type with a given Tag. More...
 
template<class T >
helper::vector< typename T::SPtr > searchAllUp (const Tag &t) const
 Upward search of all objects of the given type with a given Tag, starting from the local context. More...
 
template<class T >
helper::vector< typename T::SPtr > searchAllDown (const Tag &t) const
 Downward search of all objects of the given typee with a given Tag, starting from the local context. More...
 
template<class T >
helper::vector< typename T::SPtr > searchAllFromRoot (const Tag &t) const
 Search of all objects of the given typee with a given Tag, starting from the root. More...
 
template<class T >
helper::vector< typename T::SPtr > searchAllInParents (const Tag &t) const
 
template<class T >
helper::vector< typename T::SPtr > searchAllLocal (const TagSet &t) const
 Local search of all objects of the given type with a given TagSet. More...
 
template<class T >
helper::vector< typename T::SPtr > searchAllUp (const TagSet &t) const
 Upward search of all objects of the given type with a given TagSet, starting from the local context. More...
 
template<class T >
helper::vector< typename T::SPtr > searchAllDown (const TagSet &t) const
 Downward search of all objects of the given typee with a given TagSet, starting from the local context. More...
 
template<class T >
helper::vector< typename T::SPtr > searchAllFromRoot (const TagSet &t) const
 Search of all objects of the given typee with a given TagSet, starting from the root. More...
 
template<class T >
helper::vector< typename T::SPtr > searchAllInParents (const TagSet &t) const
 
SReal getTime () const
 Current time. More...
 
const BaseContextgetContext () const
 
BaseContextgetContext ()
 
const BaseObjectgetMaster () const
 
BaseObjectgetMaster ()
 
const VecSlavesgetSlaves () const
 
BaseObjectgetSlave (const std::string &name) const
 
virtual void addSlave (BaseObject::SPtr s)
 
virtual void removeSlave (BaseObject::SPtr s)
 
virtual void handleEvent (Event *)
 Handle an event. More...
 
virtual void handleTopologyChange ()
 
virtual void handleTopologyChange (core::topology::Topology *t)
 
void parse (BaseObjectDescription *arg) override
 Parse the given description to assign values to this object's fields and potentially other parameters. More...
 
virtual void init ()
 Initialization method called at graph creation and modification, during top-down traversal. More...
 
virtual void bwdInit ()
 Initialization method called at graph creation and modification, during bottom-up traversal. More...
 
virtual void reinit ()
 Update method called when variables used in precomputation are modified. More...
 
void updateInternal ()
 Update method called when variables (used to compute other internal variables) are modified. More...
 
virtual void storeResetState ()
 Save the initial state for later uses in reset() More...
 
virtual void reset ()
 Reset to initial state. More...
 
virtual void cleanup ()
 
- Public Member Functions inherited from sofa::core::objectmodel::Base
virtual const BaseClassgetClass () const
 
void addUpdateCallback (const std::string &name, std::initializer_list< BaseData * > inputs, std::function< sofa::core::objectmodel::ComponentState(const DataTracker &)> function, std::initializer_list< BaseData * > outputs)
 
void addOutputToCallback (const std::string &name, BaseData *output)
 
const std::string & getName () const
 Accessor to the object name. More...
 
void setName (const std::string &n)
 Set the name of this object. More...
 
void setName (const std::string &n, int counter)
 Set the name of this object, adding an integer counter. More...
 
virtual std::string getTypeName () const
 Get the type name of this object (i.e. class and template types) More...
 
virtual std::string getClassName () const
 Get the class name of this object. More...
 
virtual std::string getTemplateName () const
 Get the template type names (if any) used to instantiate this object. More...
 
virtual std::string getNameSpaceName () const
 Get the template type names (if any) used to instantiate this object. More...
 
void setDefinitionSourceFileName (const std::string &sourceFileName)
 Set the source filename (where the component is implemented) More...
 
const std::string & getDefinitionSourceFileName () const
 Get the source filename (where the component is implemented) More...
 
void setDefinitionSourceFilePos (const int)
 Set the source location (where the component is implemented) More...
 
int getDefinitionSourceFilePos () const
 Get the source location (where the component is implemented) More...
 
void setInstanciationSourceFileName (const std::string &sourceFileName)
 
const std::string & getInstanciationSourceFileName () const
 
void setInstanciationSourceFilePos (const int)
 
int getInstanciationSourceFilePos () const
 
const std::string getWarnings () const
 
const std::string getOutputs () const
 use getLoggedMessageAsString() or getLoggedMessage instead. More...
 
void clearWarnings ()
 use getLoggedMessageAsString() or getLoggedMessage instead. More...
 
void clearOutputs ()
 use clearLoggedMessages() instead More...
 
void processStream (std::ostream &out)
 use clearLoggedMessages() instead More...
 
void addMessage (const sofa::helper::logging::Message &m) const
 
size_t countLoggedMessages (sofa::helper::logging::Message::TypeSet t=sofa::helper::logging::Message::AnyTypes) const
 
const std::deque< sofa::helper::logging::Message > & getLoggedMessages () const
 
const std::string getLoggedMessagesAsString (sofa::helper::logging::Message::TypeSet t=sofa::helper::logging::Message::AnyTypes) const
 
void clearLoggedMessages () const
 
bool notMuted () const
 
bool IsInheritingFromBase ()
 
const sofa::core::objectmodel::TagSetgetTags () const
 Represents the subsets the object belongs to. More...
 
bool hasTag (Tag t) const
 Return true if the object belong to the given subset. More...
 
void addTag (Tag t)
 Add a subset qualification to the object. More...
 
void removeTag (Tag t)
 Remove a subset qualification to the object. More...
 
ComponentState getComponentState () const
 
bool isComponentStateValid () const
 
virtual bool parseField (const std::string &attribute, const std::string &value)
 Assign one field value (Data or Link) More...
 
virtual bool hasField (const std::string &attribute) const
 Check if a given Data field or Link exists. More...
 
void parseFields (const std::list< std::string > &str)
 Assign the field values stored in the given list of name + value pairs of strings. More...
 
virtual void parseFields (const std::map< std::string, std::string * > &str)
 Assign the field values stored in the given map of name -> value pairs. More...
 
void writeDatas (std::map< std::string, std::string * > &str)
 Write the current field values to the given map of name -> value pairs. More...
 
void writeDatas (std::ostream &out, const std::string &separator=" ")
 
BaseDatafindData (const std::string &name) const
 
std::vector< BaseData * > findGlobalField (const std::string &name) const
 Find data fields given a name: several can be found as we look into the alias map. More...
 
BaseLinkfindLink (const std::string &name) const
 
std::vector< BaseLink * > findLinks (const std::string &name) const
 Find link fields given a name: several can be found as we look into the alias map. More...
 
virtual void updateLinks (bool logErrors=true)
 Update pointers in case the pointed-to objects have appeared. More...
 
template<class T >
BaseData::BaseInitData initData (Data< T > *field, const char *name, const char *help, bool isDisplayed=true, bool isReadOnly=false)
 Helper method used to initialize a data field containing a value of type T. More...
 
template<class T >
Data< T >::InitData initData (Data< T > *field, const T &value, const char *name, const char *help, bool isDisplayed=true, bool isReadOnly=false)
 Helper method used to initialize a data field containing a value of type T. More...
 
void addData (BaseData *f, const std::string &name)
 
void addData (BaseData *f)
 
void removeData (BaseData *f)
 Remove a data field. More...
 
void addAlias (BaseData *field, const char *alias)
 Add an alias to a Data. More...
 
void addLink (BaseLink *l)
 Add a link. More...
 
void addAlias (BaseLink *link, const char *alias)
 Add an alias to a Link. More...
 
const VecDatagetDataFields () const
 Accessor to the vector containing all the fields of this object. More...
 
const MapDatagetDataAliases () const
 Accessor to the map containing all the aliases of this object. More...
 
const VecLinkgetLinks () const
 Accessor to the vector containing all the fields of this object. More...
 
const MapLinkgetLinkAliases () const
 Accessor to the map containing all the aliases of this object. More...
 
virtual bool findDataLinkDest (BaseData *&ptr, const std::string &path, const BaseLink *link)
 
template<class T >
bool findLinkDest (T *&ptr, const std::string &path, const BaseLink *link)
 

Protected Member Functions

 LinearSolver ()
 
 ~LinearSolver () override
 
- Protected Member Functions inherited from sofa::core::objectmodel::BaseObject
 BaseObject ()
 
 ~BaseObject () override
 
virtual void doUpdateInternal ()
 Implementation of the internal update. More...
 
void changeContextLink (BaseContext *before, BaseContext *&after)
 
void changeSlavesLink (BaseObject::SPtr ptr, unsigned int, bool add)
 This method insures that slaves objects have master and context links set correctly. More...
 
void trackInternalData (const BaseData &data)
 Method called to add the Data to the DataTracker (listing the Data to track) More...
 
void cleanTracker ()
 
bool hasDataChanged (const BaseData &data)
 Method called to know if a tracked Data has changed. More...
 
- Protected Member Functions inherited from sofa::core::objectmodel::Base
 Base ()
 
virtual ~Base ()
 
void initData0 (BaseData *field, BaseData::BaseInitData &res, const char *name, const char *help, bool isDisplayed=true, bool isReadOnly=false)
 Helper method used by initData() More...
 
void initData0 (BaseData *field, BaseData::BaseInitData &res, const char *name, const char *help, BaseData::DataFlags dataFlags)
 Helper method used by initData() More...
 
template<class T >
void initData0 (Data< T > *field, typename Data< T >::InitData &res, const T &value, const char *name, const char *help, bool isDisplayed=true, bool isReadOnly=false)
 Helper method used by initData() More...
 

Additional Inherited Members

- Public Attributes inherited from sofa::core::objectmodel::BaseObject
Data< boolf_listening
 if true, handle the events, otherwise ignore the events More...
 
- Public Attributes inherited from sofa::core::objectmodel::Base
helper::system::SofaOStream< helper::logging::Message::Warningserr
 
helper::system::SofaOStream< helper::logging::Message::Infosout
 
helper::system::SofaEndl< Basesendl
 runs the stream processing More...
 
Data< std::string > name
 Name of the object. More...
 
Data< boolf_printLog
 if true, emits extra messages at runtime. More...
 
Data< sofa::core::objectmodel::TagSetf_tags
 list of the subsets the objet belongs to More...
 
Data< sofa::defaulttype::BoundingBoxf_bbox
 this object bounding box More...
 
Data< sofa::core::objectmodel::ComponentStated_componentState
 the object state More...
 
DeprecatedAndRemoved m_componentstate
 
DeprecatedAndRemoved d_componentstate
 
std::string m_definitionSourceFileName {""}
 
int m_definitionSourceFilePos {-1}
 
std::string m_instanciationSourceFileName {""}
 
int m_instanciationSourceFilePos {-1}
 
- Static Public Member Functions inherited from sofa::core::objectmodel::BaseObject
template<class T >
static bool canCreate (T *, BaseContext *, BaseObjectDescription *)
 Pre-construction check method called by ObjectFactory. More...
 
template<class T >
static T::SPtr create (T *, BaseContext *context, BaseObjectDescription *arg)
 Construction method called by ObjectFactory. More...
 
- Static Public Member Functions inherited from sofa::core::objectmodel::Base
static const BaseClassGetClass ()
 
template<class T >
static void dynamicCast (T *&ptr, Base *b)
 
template<class T >
static std::string typeName (const T *ptr=nullptr)
 
template<class T >
static std::string className (const T *ptr=nullptr)
 
template<class T >
static std::string namespaceName (const T *ptr=nullptr)
 
template<class T >
static std::string templateName (const T *ptr=nullptr)
 
template<class T >
static std::string shortName (const T *ptr=nullptr, BaseObjectDescription *=nullptr)
 

Attribute details

bool sofa::core::behavior::LinearSolver::frozen
protected

Constructor details

sofa::core::behavior::LinearSolver::LinearSolver ( )
protected
sofa::core::behavior::LinearSolver::~LinearSolver ( )
overrideprotected

Function details

virtual bool sofa::core::behavior::LinearSolver::addJMInvJt ( defaulttype::BaseMatrix result,
defaulttype::BaseMatrix J,
SReal  fact 
)
inlinevirtual

Multiply the inverse of the system matrix by the transpose of the given matrix, and multiply the result with the given matrix J

Parameters
resultthe variable where the result will be added
Jthe matrix J to use
factintegrator parameter
Returns
false if the solver does not support this operation, of it the system matrix is not invertible
virtual bool sofa::core::behavior::LinearSolver::addMInvJt ( defaulttype::BaseMatrix result,
defaulttype::BaseMatrix J,
SReal  fact 
)
inlinevirtual

Multiply the inverse of the system matrix by the transpose of the given matrix J

Parameters
resultthe variable where the result will be added
Jthe matrix J to use
factintegrator parameter
Returns
false if the solver does not support this operation, of it the system matrix is not invertible
virtual void sofa::core::behavior::LinearSolver::applyConstraintForce ( const sofa::core::ConstraintParams ,
sofa::core::MultiVecDerivId  ,
const defaulttype::BaseVector  
)
inlinevirtual

Apply the contactforce dx = Minv * J^t * f and store the resut in dx VecId.

Reimplemented in sofa::component::linearsolver::MatrixLinearSolver< Matrix, Vector, NoThreadManager >.

virtual bool sofa::core::behavior::LinearSolver::buildComplianceMatrix ( const sofa::core::ConstraintParams cparams,
defaulttype::BaseMatrix result,
SReal  fact 
)
inlinevirtual

Build the jacobian of the constraints using a visitor

Parameters
cparamscontains the MultiMatrixDerivId which allows to retrieve the constraint jacobian to use for each mechanical object.
resultthe variable where the result will be added
factintegrator parameter
Returns
false if the solver does not support this operation, of it the system matrix is not invertible
virtual void sofa::core::behavior::LinearSolver::computeResidual ( const core::ExecParams ,
defaulttype::BaseVector  
)
inlinevirtual

Compute the residual in the newton iterations due to the constraints forces i.e. compute mparams->dF() = J^t lambda the result is written in mparams->dF()

Reimplemented in sofa::component::linearsolver::MatrixLinearSolver< Matrix, Vector, NoThreadManager >.

virtual void sofa::core::behavior::LinearSolver::freezeSystemMatrix ( )
inlinevirtual

Ask the solver to no longer update the system matrix.

virtual defaulttype::BaseMatrix* sofa::core::behavior::LinearSolver::getSystemBaseMatrix ( )
inlinevirtual

Get the linear system matrix, or nullptr if this solver does not build it.

Reimplemented in sofa::component::linearsolver::MatrixLinearSolver< Matrix, Vector, NoThreadManager >.

virtual defaulttype::BaseMatrix* sofa::core::behavior::LinearSolver::getSystemInverseBaseMatrix ( )
inlinevirtual

Get the linear system inverse matrix, or nullptr if this solver does not build it.

virtual defaulttype::BaseVector* sofa::core::behavior::LinearSolver::getSystemLHBaseVector ( )
inlinevirtual

Get the linear system left-hand term vector, or nullptr if this solver does not build it.

Reimplemented in sofa::component::linearsolver::MatrixLinearSolver< Matrix, Vector, NoThreadManager >.

virtual const behavior::MultiMatrixAccessor* sofa::core::behavior::LinearSolver::getSystemMultiMatrixAccessor ( ) const
inlinevirtual

Get the MultiMatrix view of the linear system, or nullptr if this solved does not build it.

Reimplemented in sofa::component::linearsolver::MatrixLinearSolver< Matrix, Vector, NoThreadManager >.

virtual defaulttype::BaseVector* sofa::core::behavior::LinearSolver::getSystemRHBaseVector ( )
inlinevirtual

Get the linear system right-hand term vector, or nullptr if this solver does not build it.

Reimplemented in sofa::component::linearsolver::MatrixLinearSolver< Matrix, Vector, NoThreadManager >.

virtual bool sofa::core::behavior::LinearSolver::hasUpdatedMatrix ( )
inlinevirtual

Indicate if the solver updated the system after the last call of setSystemMBKMatrix (should return true if isParallelSolver return false)

virtual void sofa::core::behavior::LinearSolver::init_partial_solve ( )
inlinevirtual
virtual void sofa::core::behavior::LinearSolver::invertSystem ( )
inlinevirtual

Invert the system, this method is optional because it's called when solveSystem() is called for the first time.

Reimplemented in sofa::component::linearsolver::MatrixLinearSolver< Matrix, Vector, NoThreadManager >.

virtual bool sofa::core::behavior::LinearSolver::isAsyncSolver ( )
inlinevirtual

Indicate if the solver update the system in parallel.

Reimplemented in sofa::component::linearsolver::MatrixLinearSolver< Matrix, Vector, NoThreadManager >.

virtual void sofa::core::behavior::LinearSolver::partial_solve ( std::list< int > &  ,
std::list< int > &  ,
bool   
)
inlinevirtual
virtual bool sofa::core::behavior::LinearSolver::readFile ( std::istream &  )
inlinevirtual

Read the Matrix solver from a file.

virtual void sofa::core::behavior::LinearSolver::rebuildSystem ( SReal  ,
SReal   
)
inlinevirtual

Rebuild the system using a mass and force factor Experimental API used to investigate convergence issues.

virtual void sofa::core::behavior::LinearSolver::resetSystem ( )
pure virtual
virtual void sofa::core::behavior::LinearSolver::setSystemLHVector ( core::MultiVecDerivId  v)
pure virtual

Set the initial estimate of the linear system left-hand term vector, from the values contained in the (Mechanical/Physical)State objects This vector will be replaced by the solution of the system once solveSystem is called

Implemented in sofa::component::linearsolver::MatrixLinearSolver< Matrix, Vector, NoThreadManager >.

virtual void sofa::core::behavior::LinearSolver::setSystemMBKMatrix ( const MechanicalParams mparams)
pure virtual

Set the linear system matrix, combining the mechanical M,B,K matrices using the given coefficients

Implemented in sofa::component::linearsolver::MatrixLinearSolver< Matrix, Vector, NoThreadManager >.

virtual void sofa::core::behavior::LinearSolver::setSystemRHVector ( core::MultiVecDerivId  v)
pure virtual

Set the linear system right-hand term vector, from the values contained in the (Mechanical/Physical)State objects.

Implemented in sofa::component::linearsolver::MatrixLinearSolver< Matrix, Vector, NoThreadManager >.

sofa::core::behavior::LinearSolver::SOFA_ABSTRACT_CLASS ( LinearSolver  ,
BaseLinearSolver   
)
virtual void sofa::core::behavior::LinearSolver::solveSystem ( )
pure virtual

Solve the system as constructed using the previous methods.

Implemented in sofa::component::linearsolver::MatrixLinearSolver< Matrix, Vector, NoThreadManager >.

virtual void sofa::core::behavior::LinearSolver::updateSystemMatrix ( )
inlinevirtual

This function is use for the preconditioner it must be called at each time step event if setSystemMBKMatrix is not called.

virtual bool sofa::core::behavior::LinearSolver::writeFile ( std::ostream &  )
inlinevirtual

Read the Matrix solver from a file.