souffle::ast::InputSips Class Reference

Goal: prioritise (1) all-bound, then (2) input, and then (3) left-most. More...

#include <SipsMetric.h>

Inheritance diagram for souffle::ast::InputSips:

Collaboration diagram for souffle::ast::InputSips:

Public Member Functions
	InputSips (const analysis::RelationDetailCacheAnalysis &relDetail, const analysis::IOTypeAnalysis &ioTypes)
Public Member Functions inherited from souffle::ast::SipsMetric
std::vector< unsigned int >	getReordering (const Clause *clause) const
	Determines the new ordering of a clause after the SIPS is applied. More...
virtual	~SipsMetric ()=default

Protected Member Functions
std::vector< double >	evaluateCosts (const std::vector< Atom * > atoms, const BindingStore &bindingStore) const override
	Evaluates the cost of choosing each atom next in the current schedule. More...

Private Attributes
const analysis::IOTypeAnalysis &	ioTypes
const analysis::RelationDetailCacheAnalysis &	relDetail

Additional Inherited Members
Static Public Member Functions inherited from souffle::ast::SipsMetric
static std::unique_ptr< SipsMetric >	create (const std::string &heuristic, const TranslationUnit &tu)
	Create a SIPS metric based on a given heuristic. More...

Detailed Description

Goal: prioritise (1) all-bound, then (2) input, and then (3) left-most.

Definition at line 161 of file SipsMetric.h.

Constructor & Destructor Documentation

InputSips()

souffle::ast::InputSips::InputSips ( const analysis::RelationDetailCacheAnalysis &  relDetail, const analysis::IOTypeAnalysis &  ioTypes  )

inline

Definition at line 163 of file SipsMetric.h.

            : relDetail(relDetail), ioTypes(ioTypes) {}

Member Function Documentation

evaluateCosts()

std::vector< double > souffle::ast::InputSips::evaluateCosts ( const std::vector< Atom * >  atoms, const BindingStore &  bindingStore  ) const

overrideprotectedvirtual

Evaluates the cost of choosing each atom next in the current schedule.

Parameters

atoms	atoms to choose from; may be nullptr
bindingStore	the variables already bound to a value

Implements souffle::ast::SipsMetric.

Definition at line 295 of file SipsMetric.cpp.

                               {
            // prioritise all-bound
            cost.push_back(0);
        } else if (ioTypes.isInput(relDetail.getRelation(relName))) {
            // then input
            cost.push_back(1);
        } else {
            cost.push_back(2);
        }
    }
    return cost;
}
 
std::vector<double> DeltaInputSips::evaluateCosts(
        const std::vector<Atom*> atoms, const BindingStore& bindingStore) const {
    // Goal: prioritise (1) all-bound, (2) deltas, (3) input, then (4) rest
    std::vector<double> cost;
    for (const auto* atom : atoms) {

Field Documentation

ioTypes

const analysis::IOTypeAnalysis& souffle::ast::InputSips::ioTypes

private

Definition at line 172 of file SipsMetric.h.

relDetail

const analysis::RelationDetailCacheAnalysis& souffle::ast::InputSips::relDetail

private

Definition at line 171 of file SipsMetric.h.

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The documentation for this class was generated from the following files:

• ast/utility/SipsMetric.h
• ast/utility/SipsMetric.cpp