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dfs.hh
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3  * Main authors:
4  * Christian Schulte <schulte@gecode.org>
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7  * Christian Schulte, 2009
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33 
34 #ifndef __GECODE_SEARCH_PAR_DFS_HH__
35 #define __GECODE_SEARCH_PAR_DFS_HH__
36 
38 
39 namespace Gecode { namespace Search { namespace Par {
40 
42  template<class Tracer>
43  class DFS : public Engine<Tracer> {
44  protected:
55  using Engine<Tracer>::opt;
66  class Worker : public Engine<Tracer>::Worker {
67  public:
80  Worker(Space* s, DFS& e);
82  DFS& engine(void) const;
84  virtual void run(void);
86  void find(void);
88  void reset(Space* s, unsigned int ngdl);
89  };
92  public:
94  Worker* worker(unsigned int i) const;
95 
97 
98  void solution(Space* s);
101 
103 
104  DFS(Space* s, const Options& o);
107  virtual Statistics statistics(void) const;
109  virtual void reset(Space* s);
111  virtual NoGoods& nogoods(void);
113  virtual ~DFS(void);
115  };
116 
117 }}}
118 
119 #include <gecode/search/par/dfs.hpp>
120 
121 #endif
122 
123 // STATISTICS: search-par
virtual void run(void)
Start execution of worker.
Definition: dfs.hpp:162
Search engine options
Definition: search.hh:746
void find(void)
Try to find some work.
Definition: dfs.hpp:122
Worker * worker(unsigned int i) const
Provide access to worker i.
Definition: dfs.hpp:46
Parallel depth-first search engine
Definition: dfs.hh:43
Computation spaces.
Definition: core.hpp:1742
virtual void reset(Space *s)
Reset engine to restart at space s.
Definition: dfs.hpp:308
Gecode toplevel namespace
No-goods recorded from restarts.
Definition: core.hpp:1588
Worker(void)
Initialize.
Definition: worker.hh:70
Parallel depth-first search engine
Definition: engine.hh:46
void solution(Space *s)
Report solution s.
Definition: dfs.hpp:106
virtual ~DFS(void)
Destructor.
Definition: dfs.hpp:359
DFS(Space *s, const Options &o)
Initialize for space s with options o.
Definition: dfs.hpp:60
Worker ** _worker
Array of worker references.
Definition: dfs.hh:91
virtual Statistics statistics(void) const
Return statistics.
Definition: dfs.hpp:149
DFS & engine(void) const
Provide access to engine.
Definition: dfs.hpp:41
Parallel depth-first search worker
Definition: dfs.hh:66
virtual NoGoods & nogoods(void)
Return no-goods.
Definition: dfs.hpp:336
void reset(void)
Reset.
Definition: statistics.hpp:39
Gecode::IntArgs i({1, 2, 3, 4})
Search engine statistics
Definition: search.hh:147