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rbs.hh
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37 
38 #ifndef __GECODE_SEARCH_SEQ_RBS_HH__
39 #define __GECODE_SEARCH_SEQ_RBS_HH__
40 
41 #include <gecode/search.hh>
42 
43 namespace Gecode { namespace Search { namespace Seq {
44 
45  class RBS;
46 
49  template<class,template<class>class> friend class ::Gecode::RBS;
50  friend class ::Gecode::Search::Seq::RBS;
51  private:
53  unsigned long int l;
55  Stop* m_stop;
57  bool e_stopped;
59  Statistics m_stat;
60  public:
62  RestartStop(Stop* s);
64  virtual bool stop(const Statistics& s, const Options& o);
66  void limit(const Statistics& s, unsigned long int l);
68  void update(const Search::Statistics& s);
70  bool enginestopped(void) const;
72  Statistics metastatistics(void) const;
73  };
74 
76  class GECODE_SEARCH_EXPORT RBS : public Engine {
77  protected:
89  unsigned long int sslr;
93  bool complete;
95  bool restart;
97  bool best;
98  public:
100  RBS(Space* s, RestartStop* stop0, Engine* e0,
101  const Search::Statistics& stat, const Options& o, bool best);
103  virtual Space* next(void);
105  virtual Statistics statistics(void) const;
107  virtual bool stopped(void) const;
109  virtual void constrain(const Space& b);
111  virtual ~RBS(void);
112  };
113 
114 }}}
115 
116 #include <gecode/search/seq/rbs.hpp>
117 
118 #endif
119 
120 // STATISTICS: search-seq
Search engine implementation interface
Definition: search.hh:901
NNF * l
Left subtree.
Definition: bool-expr.cpp:244
Search engine statistics
Definition: search.hh:149
#define GECODE_SEARCH_EXPORT
Definition: search.hh:69
Search engine options
Definition: search.hh:748
RestartStop * stop
The stop control object.
Definition: rbs.hh:87
void stop(Support::Timer &timer, std::ostream &os)
Get time since start of timer and print user friendly time information.
Definition: script.cpp:46
Base class for cutoff generators for restart-based meta engine.
Definition: search.hh:474
Computation spaces.
Definition: core.hpp:1668
Cutoff * co
The cutoff object.
Definition: rbs.hh:85
Space * master
The master space to restart from.
Definition: rbs.hh:81
bool complete
Whether search for the next solution will be complete.
Definition: rbs.hh:93
unsigned long int sslr
How many solutions since the last restart.
Definition: rbs.hh:89
bool best
Whether the engine performs best solution search.
Definition: rbs.hh:97
Engine * e
The actual engine.
Definition: rbs.hh:79
Stop-object for restart engine
Definition: rbs.hh:48
struct Gecode::@585::NNF::@62::@63 b
For binary nodes (and, or, eqv)
Space * last
The last solution space (possibly NULL)
Definition: rbs.hh:83
Gecode toplevel namespace
Base-class for Stop-object.
Definition: search.hh:801
bool shared_info
Whether the slave can share info (AFC) with the master.
Definition: rbs.hh:91
bool restart
Whether a restart must be performed when next is called.
Definition: rbs.hh:95
Engine for restart-based search.
Definition: rbs.hh:76
void update(IntSet &y, Space &home, IntSet &py)
Definition: rel.hpp:107