ROL
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Provides an interface to run the proximal gradient algorithm. More...
#include <ROL_TypeP_ProxGradientAlgorithm.hpp>
Public Member Functions | |
ProxGradientAlgorithm (ParameterList &list) | |
void | run (Vector< Real > &x, const Vector< Real > &g, Objective< Real > &sobj, Objective< Real > &nobj, std::ostream &outStream=std::cout) override |
Run algorithm on unconstrained problems (Type-U). This general interface supports the use of dual optimization vector spaces, where the user does not define the dual() method. More... | |
void | writeHeader (std::ostream &os) const override |
Print iterate header. More... | |
void | writeName (std::ostream &os) const override |
Print step name. More... | |
void | writeOutput (std::ostream &os, bool write_header=false) const override |
Print iterate status. More... | |
Public Member Functions inherited from ROL::TypeP::Algorithm< Real > | |
virtual | ~Algorithm () |
Algorithm () | |
Constructor, given a step and a status test. More... | |
void | setStatusTest (const Ptr< StatusTest< Real >> &status, bool combineStatus=false) |
virtual void | run (Problem< Real > &problem, std::ostream &outStream=std::cout) |
Run algorithm on unconstrained problems (Type-U). This is the primary Type-U interface. More... | |
virtual void | run (Vector< Real > &x, Objective< Real > &sobj, Objective< Real > &nobj, std::ostream &outStream=std::cout) |
Run algorithm on unconstrained problems (Type-U). This is the primary Type-U interface. More... | |
virtual void | writeExitStatus (std::ostream &os) const |
Ptr< const AlgorithmState< Real > > | getState () const |
void | reset () |
Private Member Functions | |
void | initialize (Vector< Real > &x, const Vector< Real > &g, Objective< Real > &sobj, Objective< Real > &nobj, Vector< Real > &px, Vector< Real > &dg, std::ostream &outStream=std::cout) |
Private Attributes | |
int | maxit_ |
Real | alpha0_ |
Real | alpha0bnd_ |
Real | rhodec_ |
Real | rhoinc_ |
Real | c1_ |
Real | maxAlpha_ |
Real | t0_ |
bool | useralpha_ |
bool | usePrevAlpha_ |
bool | useAdapt_ |
bool | normAlpha_ |
bool | initProx_ |
int | verbosity_ |
bool | writeHeader_ |
Additional Inherited Members | |
Protected Member Functions inherited from ROL::TypeP::Algorithm< Real > | |
void | initialize (const Vector< Real > &x, const Vector< Real > &g) |
void | pgstep (Vector< Real > &pgiter, Vector< Real > &pgstep, Objective< Real > &nobj, const Vector< Real > &x, const Vector< Real > &dg, Real t, Real &tol) const |
Protected Attributes inherited from ROL::TypeP::Algorithm< Real > | |
const Ptr< CombinedStatusTest < Real > > | status_ |
const Ptr< AlgorithmState< Real > > | state_ |
Provides an interface to run the proximal gradient algorithm.
Definition at line 57 of file ROL_TypeP_ProxGradientAlgorithm.hpp.
ROL::TypeP::ProxGradientAlgorithm< Real >::ProxGradientAlgorithm | ( | ParameterList & | list | ) |
Definition at line 51 of file ROL_TypeP_ProxGradientAlgorithm_Def.hpp.
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Definition at line 76 of file ROL_TypeP_ProxGradientAlgorithm_Def.hpp.
References ROL::Objective< Real >::gradient(), ROL::Initial, ROL::TypeP::Algorithm< Real >::initialize(), ROL::Objective< Real >::prox(), ROL::Revert, ROL::Vector< Real >::set(), ROL::Trial, ROL::Objective< Real >::update(), and ROL::Objective< Real >::value().
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Run algorithm on unconstrained problems (Type-U). This general interface supports the use of dual optimization vector spaces, where the user does not define the dual() method.
Implements ROL::TypeP::Algorithm< Real >.
Definition at line 129 of file ROL_TypeP_ProxGradientAlgorithm_Def.hpp.
References ROL::Accept, ROL::Vector< Real >::clone(), ROL::Objective< Real >::gradient(), ROL::Revert, ROL::Vector< Real >::set(), ROL::Trial, ROL::Objective< Real >::update(), ROL::Objective< Real >::value(), and ROL::TypeP::Algorithm< Real >::writeExitStatus().
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Print iterate header.
Reimplemented from ROL::TypeP::Algorithm< Real >.
Definition at line 294 of file ROL_TypeP_ProxGradientAlgorithm_Def.hpp.
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Print step name.
Reimplemented from ROL::TypeP::Algorithm< Real >.
Definition at line 327 of file ROL_TypeP_ProxGradientAlgorithm_Def.hpp.
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overridevirtual |
Print iterate status.
Reimplemented from ROL::TypeP::Algorithm< Real >.
Definition at line 334 of file ROL_TypeP_ProxGradientAlgorithm_Def.hpp.
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Definition at line 59 of file ROL_TypeP_ProxGradientAlgorithm.hpp.
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Definition at line 60 of file ROL_TypeP_ProxGradientAlgorithm.hpp.
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Definition at line 60 of file ROL_TypeP_ProxGradientAlgorithm.hpp.
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Definition at line 60 of file ROL_TypeP_ProxGradientAlgorithm.hpp.
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Definition at line 60 of file ROL_TypeP_ProxGradientAlgorithm.hpp.
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Definition at line 60 of file ROL_TypeP_ProxGradientAlgorithm.hpp.
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Definition at line 60 of file ROL_TypeP_ProxGradientAlgorithm.hpp.
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Definition at line 60 of file ROL_TypeP_ProxGradientAlgorithm.hpp.
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Definition at line 61 of file ROL_TypeP_ProxGradientAlgorithm.hpp.
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Definition at line 61 of file ROL_TypeP_ProxGradientAlgorithm.hpp.
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Definition at line 61 of file ROL_TypeP_ProxGradientAlgorithm.hpp.
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Definition at line 61 of file ROL_TypeP_ProxGradientAlgorithm.hpp.
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Definition at line 61 of file ROL_TypeP_ProxGradientAlgorithm.hpp.
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Definition at line 62 of file ROL_TypeP_ProxGradientAlgorithm.hpp.
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Definition at line 63 of file ROL_TypeP_ProxGradientAlgorithm.hpp.