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File kernel/src/simulationTools/Relay.hpp

File kernel/src/simulationTools/Relay.hpp#

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Linear Complementarity Problem formulation and solving.

class Relay : public LinearOSNS
#include <Relay.hpp>

Formalization and Resolution of a Linear Complementarity Problem (Relay)

This class is devoted to the formalization and the resolution of the Relay NonSmooth problems.

\[ w = q + M z \]
\[ w \geq 0, z \geq 0, z^{T} w =0 \]
where

  • \( w \in R^{n} \) and \( z \in R^{n} \) are the unknowns,

  • \( M \in R^{n \times n } \) and \( q \in R^{n} \)

    Todo:

    : add “recover” function to start from old values of z and w.

    : review this introduction …

Public Functions

Relay(int numericsSolverId = SICONOS_RELAY_AVI_CAOFERRIS)

constructor from numerics solver id

Parameters:

numericsSolverId – id of numerics solver, default = SICONOS_RELAY_AVI_CAOFERRIS

Relay(SP::SolverOptions options)

constructor from a pre-defined solver options set

Parameters:

options – the options set

inline ~Relay()

destructor

inline const SiconosVector &getLb() const

get the value of lb, the lower bounds of the Relay system

Returns:

the vector of lower bounds

inline SP::SiconosVector lb() const

get lb, the lower bounds of the Relay system

Returns:

the vector of lower bounds

inline void setLb(SP::SiconosVector newLb)

set lb to pointer newPtr

Parameters:

newLb – new lower bound

inline const SiconosVector &getUb() const

get the value of ub, the upper bounds of the Relay system

Returns:

the vector of upper bounds

inline SP::SiconosVector ub() const

get lb, the lower bounds of the Relay system

Returns:

the vector of upper bounds

inline void setUb(SP::SiconosVector newUb)

set ub to pointer newPtr

Parameters:

newUb – new upper bound

virtual void initialize(SP::Simulation sim)

To initialize the LinearOSNS problem(computes topology …)

Parameters:

sim – the simulation owning this OSNSPB

virtual int compute(double time)

Compute the unknown z and w and update the Interaction (y and lambda )

Parameters:

time – current time

Returns:

information about the solver convergence.

virtual bool checkCompatibleNSLaw(NonSmoothLaw &nslaw)

Check the compatibility fol the nslaw with the targeted OSNSP.

virtual void display() const

print the data to the screen

Protected Functions

ACCEPT_SERIALIZATION(Relay)#

Protected Attributes

SP::SiconosVector _lb#

contains the vector lb (lower bounds) of a Relay system

SP::SiconosVector _ub#

contains the vector ub (upper bounds) of a Relay system

SP::RelayProblem _numerics_problem#

contains the numerics proble for Relay system

Friends

friend struct _BoundsNSLEffect
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