souffle  2.0.2-371-g6315b36
Public Member Functions | Protected Member Functions
souffle::ast::NaiveSips Class Reference

Goal: Prioritise (1) all bound, then (2) atoms with at least one bound argument, then (3) left-most. More...

#include <SipsMetric.h>

Inheritance diagram for souffle::ast::NaiveSips:
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Public Member Functions

 NaiveSips ()=default
 
- 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...
 

Additional Inherited Members

- Static Public Member Functions inherited from souffle::ast::SipsMetric
static std::unique_ptr< SipsMetriccreate (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) atoms with at least one bound argument, then (3) left-most.

Definition at line 84 of file SipsMetric.h.

Constructor & Destructor Documentation

◆ NaiveSips()

souffle::ast::NaiveSips::NaiveSips ( )
default

Member Function Documentation

◆ evaluateCosts()

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

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

Parameters
atomsatoms to choose from; may be nullptr
bindingStorethe variables already bound to a value

Implements souffle::ast::SipsMetric.

Definition at line 127 of file SipsMetric.cpp.

133  {
134  cost.push_back(0);
135  } else if (numBound >= 1) {
136  cost.push_back(1);
137  } else {
138  cost.push_back(2);
139  }
140  }
141  assert(atoms.size() == cost.size() && "each atom should have exactly one cost");
142  return cost;
143 }
144 
145 std::vector<double> MaxBoundSips::evaluateCosts(
146  const std::vector<Atom*> atoms, const BindingStore& bindingStore) const {
147  // Goal: prioritise (1) all-bound, then (2) max number of bound vars, then (3) left-most
148  std::vector<double> cost;
149  for (const auto* atom : atoms) {

The documentation for this class was generated from the following files:
souffle::ast::MaxBoundSips::evaluateCosts
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.
Definition: SipsMetric.cpp:151