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rbs.hh
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33 
34 #ifndef __GECODE_SEARCH_SEQ_RBS_HH__
35 #define __GECODE_SEARCH_SEQ_RBS_HH__
36 
37 #include <gecode/search.hh>
38 
39 namespace Gecode { namespace Search { namespace Seq {
40 
41  class RBS;
42 
45  template<class,template<class>class> friend class ::Gecode::RBS;
46  friend class ::Gecode::Search::Seq::RBS;
47  private:
49  unsigned long int l;
51  Stop* m_stop;
53  bool e_stopped;
55  Statistics m_stat;
56  public:
58  RestartStop(Stop* s);
60  virtual bool stop(const Statistics& s, const Options& o);
62  void limit(const Statistics& s, unsigned long int l);
64  void update(const Search::Statistics& s);
66  bool enginestopped(void) const;
68  Statistics metastatistics(void) const;
69  };
70 
72  class GECODE_SEARCH_EXPORT RBS : public Engine {
73  protected:
85  unsigned long int sslr;
89  bool complete;
91  bool restart;
93  bool best;
94  public:
96  RBS(Space* s, RestartStop* stop0, Engine* e0,
97  const Search::Statistics& stat, const Options& o, bool best);
99  virtual Space* next(void);
101  virtual Statistics statistics(void) const;
103  virtual bool stopped(void) const;
105  virtual void constrain(const Space& b);
107  virtual ~RBS(void);
108  };
109 
110 }}}
111 
112 #include <gecode/search/seq/rbs.hpp>
113 
114 #endif
115 
116 // STATISTICS: search-seq
Search engine implementation interface
Definition: search.hh:899
NNF * l
Left subtree.
Definition: bool-expr.cpp:240
Search engine statistics
Definition: search.hh:147
#define GECODE_SEARCH_EXPORT
Definition: search.hh:67
Search engine options
Definition: search.hh:746
RestartStop * stop
The stop control object.
Definition: rbs.hh:83
void stop(Support::Timer &timer, std::ostream &os)
Get time since start of timer and print user friendly time information.
Definition: script.cpp:42
Base class for cutoff generators for restart-based meta engine.
Definition: search.hh:472
Computation spaces.
Definition: core.hpp:1701
Cutoff * co
The cutoff object.
Definition: rbs.hh:81
Space * master
The master space to restart from.
Definition: rbs.hh:77
bool complete
Whether search for the next solution will be complete.
Definition: rbs.hh:89
unsigned long int sslr
How many solutions since the last restart.
Definition: rbs.hh:85
struct Gecode::@593::NNF::@62::@63 b
For binary nodes (and, or, eqv)
bool best
Whether the engine performs best solution search.
Definition: rbs.hh:93
Engine * e
The actual engine.
Definition: rbs.hh:75
Stop-object for restart engine
Definition: rbs.hh:44
Space * last
The last solution space (possibly NULL)
Definition: rbs.hh:79
Gecode toplevel namespace
Base-class for Stop-object.
Definition: search.hh:799
bool shared_info
Whether the slave can share info (AFC) with the master.
Definition: rbs.hh:87
bool restart
Whether a restart must be performed when next is called.
Definition: rbs.hh:91
Engine for restart-based search.
Definition: rbs.hh:72
void update(IntSet &y, Space &home, IntSet &py)
Definition: rel.hpp:103