Feature Selection Toolbox FST4
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FST::Search_Exhaustive_Threaded< RETURNTYPE, DIMTYPE, SUBSET, CRITERION > Class Template Reference

DEPRECATED shim: threaded version of exhaustive (optimal) search. More...

#include <search_exhaustive_threaded.hpp>

Inheritance diagram for FST::Search_Exhaustive_Threaded< RETURNTYPE, DIMTYPE, SUBSET, CRITERION >:
FST::Search_Exhaustive< RETURNTYPE, DIMTYPE, SUBSET, CRITERION > FST::Search< RETURNTYPE, DIMTYPE, SUBSET, CRITERION >

Public Types

typedef Search_Exhaustive< RETURNTYPE, DIMTYPE, SUBSET, CRITERION > parent
 base class: the merged exhaustive search this shim configures with a threaded engine
typedef parent::PEvaluatorEngine PEvaluatorEngine
Public Types inherited from FST::Search_Exhaustive< RETURNTYPE, DIMTYPE, SUBSET, CRITERION >
typedef Search< RETURNTYPE, DIMTYPE, SUBSET, CRITERION > parent
 base class: the generic search interface
typedef std::shared_ptr< CRITERION > PCriterion
 shared pointer to the criterion being optimized
typedef std::shared_ptr< SUBSET > PSubset
 shared pointer to a feature subset
typedef Candidate_Evaluator< RETURNTYPE, DIMTYPE, SUBSET, CRITERION > EVALUATORENGINE
 the candidate-evaluation engine type (sequential or threaded)
typedef std::shared_ptr< EVALUATORENGINE > PEvaluatorEngine
 shared pointer to the evaluation engine
Public Types inherited from FST::Search< RETURNTYPE, DIMTYPE, SUBSET, CRITERION >
 shared pointer to the criterion the search optimizes
 shared pointer to a feature subset
 shared pointer to the result tracker enabled via enable_result_tracking()
 the observer interface type this search reports through (see Search_Observer)
 shared pointer to an OBSERVER, as set via set_observer()

Public Member Functions

 Search_Exhaustive_Threaded (const unsigned int max_threads=2)
 Constructs a Search_Exhaustive configured with a Candidate_Evaluator_Threaded engine of max_threads workers.
Public Member Functions inherited from FST::Search_Exhaustive< RETURNTYPE, DIMTYPE, SUBSET, CRITERION >
 Search_Exhaustive (PEvaluatorEngine engine=PEvaluatorEngine())
 Constructs the search with the given candidate-evaluation engine; a default-constructed engine falls back to Candidate_Evaluator_Sequential (in-line, unthreaded evaluation).
virtual bool search (const DIMTYPE target_d, RETURNTYPE &result, const PSubset sub, const PCriterion crit, std::ostream &os=std::cout) override
 evaluates every subset of the requested size (every subset of any size from 1 to n if target_d==0) and returns the best one + its criterion value; false if no candidate could be generated (n==0, or the subset object refused to enumerate) or a criterion evaluation failed
virtual std::ostream & print (std::ostream &os) const override
 writes a human-readable identification of the search and its configuration; base default writes nothing
Public Member Functions inherited from FST::Search< RETURNTYPE, DIMTYPE, SUBSET, CRITERION >
 assigns a result tracker to the search process, i.e., enables logging of all evaluated subsets for future reuse (re-evaluation, etc.)
 detaches any result tracker (result_tracker_active() then returns false)
 true if a result tracker was assigned via enable_result_tracking() and not since disabled
 sets the amount of information that is logged to output stream throughout the course of search
 the currently configured output detail level
 true unless output detail is SILENT
 true only at the DETAILED output level
 redirects search progress reporting away from the default syncout text output to observer

Additional Inherited Members

Protected Member Functions inherited from FST::Search< RETURNTYPE, DIMTYPE, SUBSET, CRITERION >
 delivers one pre-formatted progress message: to the observer if attached, otherwise as syncout text to os
 like report(), for sites announcing a new (sub-)solution; fires on_solution instead
Protected Attributes inherited from FST::Search_Exhaustive< RETURNTYPE, DIMTYPE, SUBSET, CRITERION >
PEvaluatorEngine _engine
 the injected candidate-evaluation engine (defaults to sequential)
Protected Attributes inherited from FST::Search< RETURNTYPE, DIMTYPE, SUBSET, CRITERION >
 the assigned result tracker, or null (see enable_result_tracking()/result_tracker_active())
 the output detail level set via set_output_detail(); read by output_normal()/output_detailed()
 the attached progress observer, or null (see set_observer(), report(), report_solution())

Detailed Description

template<class RETURNTYPE, typename DIMTYPE, class SUBSET, class CRITERION>
class FST::Search_Exhaustive_Threaded< RETURNTYPE, DIMTYPE, SUBSET, CRITERION >

DEPRECATED shim: threaded version of exhaustive (optimal) search.

Deprecated
Deprecated since FST4 4.0; scheduled for removal in the next major release — construct the merged class with a Candidate_Evaluator_Threaded engine instead.

Kept for source compatibility with earlier FST4 sources, written when the threaded and the sequential variant were separate classes. This class is now nothing but a Search_Exhaustive constructed with a Candidate_Evaluator_Threaded engine; prefer doing that directly in new code.

Member Typedef Documentation

◆ PEvaluatorEngine

template<class RETURNTYPE, typename DIMTYPE, class SUBSET, class CRITERION>
typedef parent::PEvaluatorEngine FST::Search_Exhaustive_Threaded< RETURNTYPE, DIMTYPE, SUBSET, CRITERION >::PEvaluatorEngine

the candidate-evaluation engine type, inherited from parent

Constructor & Destructor Documentation

◆ Search_Exhaustive_Threaded()

template<class RETURNTYPE, typename DIMTYPE, class SUBSET, class CRITERION>
FST::Search_Exhaustive_Threaded< RETURNTYPE, DIMTYPE, SUBSET, CRITERION >::Search_Exhaustive_Threaded ( const unsigned int max_threads = 2)
inlineexplicit

Constructs a Search_Exhaustive configured with a Candidate_Evaluator_Threaded engine of max_threads workers.

Parameters
max_threadspool capacity for the threaded engine (must be greater than zero, asserted)
The documentation for this class was generated from the following file:
Generated by doxygen 1.17.0
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