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rbs.hh
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37 
38 #ifndef __GECODE_SEARCH_META_RBS_HH__
39 #define __GECODE_SEARCH_META_RBS_HH__
40 
41 #include <gecode/search.hh>
42 
43 namespace Gecode { namespace Search { namespace Meta {
44 
45  class RBS;
46 
49  template<class,template<class>class> friend class ::Gecode::RBS;
50  friend class ::Gecode::Search::Meta::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;
95  bool complete;
97  bool restart;
99  bool best;
100  public:
102  RBS(Space* s, RestartStop* stop0, Engine* e0,
103  const Search::Statistics& stat, const Options& o, bool best);
105  virtual Space* next(void);
107  virtual Statistics statistics(void) const;
109  virtual bool stopped(void) const;
111  virtual void constrain(const Space& b);
113  virtual ~RBS(void);
114  };
115 
116 }}}
117 
119 
120 #endif
121 
122 // STATISTICS: search-meta
Search engine implementation interface
Definition: search.hh:601
NNF * l
Left subtree.
Definition: bool-expr.cpp:244
Search engine statistics
Definition: search.hh:140
Cutoff * co
The cutoff object.
Definition: rbs.hh:85
#define GECODE_SEARCH_EXPORT
Definition: search.hh:63
Engine for restart-based search.
Definition: rbs.hh:76
Search engine options
Definition: search.hh:446
Base class for cutoff generators for restart-based meta engine.
Definition: search.hh:172
Computation spaces.
Definition: core.hpp:1748
unsigned long int sslr
How many solutions since the last restart.
Definition: rbs.hh:89
bool restart
Whether a restart must be performed when next is called.
Definition: rbs.hh:97
struct Gecode::@579::NNF::@61::@62 b
For binary nodes (and, or, eqv)
bool best
Whether the engine performs best solution search.
Definition: rbs.hh:99
RestartStop * stop
The stop control object.
Definition: rbs.hh:87
Stop-object for restart engine
Definition: rbs.hh:48
Space * last
The last solution space (possibly NULL)
Definition: rbs.hh:83
bool shared_data
Whether the slave can share data with the master.
Definition: rbs.hh:91
Space * master
The master space to restart from.
Definition: rbs.hh:81
Engine * e
The actual engine.
Definition: rbs.hh:79
Gecode toplevel namespace
Base-class for Stop-object.
Definition: search.hh:501
bool complete
Whether search for the next solution will be complete.
Definition: rbs.hh:95
bool shared_info
Whether the slave can share info (AFC) with the master.
Definition: rbs.hh:93
Stop * stop(Stop *stop)
Create stop object.
Definition: rbs.cpp:43