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rbs.hh
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37 
38 
39 #ifndef __GECODE_SEARCH_META_RBS_HH__
40 #define __GECODE_SEARCH_META_RBS_HH__
41 
42 #include <gecode/search.hh>
43 
44 namespace Gecode { namespace Search { namespace Meta {
45 
47  class RBS : public Engine {
48  protected:
60  bool shared;
62  unsigned long int sslr;
64  bool complete;
65  public:
67  RBS(Space* s, Cutoff* co0, MetaStop* stop0,
68  Engine* e0, const Options& o);
70  virtual Space* next(void);
72  virtual Search::Statistics statistics(void) const;
74  virtual bool stopped(void) const;
76  virtual void reset(Space* s);
78  virtual NoGoods& nogoods(void);
80  virtual ~RBS(void);
81  };
82 
84  RBS::RBS(Space* s, Cutoff* co0, MetaStop* stop0,
85  Engine* e0, const Options& opt)
86  : e(e0), master(s), last(NULL), co(co0), stop(stop0),
87  shared(opt.threads == 1), sslr(0), complete(true) {
88  stop->limit(Statistics(),(*co)());
89  }
90 
91 }}}
92 
93 #endif
94 
95 // STATISTICS: search-other
Search engine implementation interface
Definition: search.hh:445
Search engine statistics
Definition: search.hh:136
Cutoff * co
The cutoff object.
Definition: rbs.hh:56
Engine for restart-based search.
Definition: rbs.hh:47
Search engine options
Definition: search.hh:204
void stop(Support::Timer &timer, std::ostream &os)
Get time since start of timer and print user friendly time information.
Definition: script.cpp:46
void limit(const Search::Statistics &s, unsigned long int l)
Set current limit for the engine to l fails.
Definition: stop.hpp:135
Base class for cutoff generators for restart-based meta engine.
Definition: search.hh:389
Computation spaces.
Definition: core.hpp:1362
virtual void reset(Space *s)
Reset engine to restart at space s.
Definition: rbs.cpp:118
unsigned long int sslr
How many solutions since the last restart.
Definition: rbs.hh:62
MetaStop * stop
The stop control object.
Definition: rbs.hh:58
Options opt
The options.
Definition: test.cpp:101
virtual NoGoods & nogoods(void)
Return no-goods.
Definition: rbs.cpp:122
Stop-object for meta engine
Definition: search.hh:349
RBS(Space *s, Cutoff *co0, MetaStop *stop0, Engine *e0, const Options &o)
Constructor.
Definition: rbs.hh:84
virtual Space * next(void)
Return next solution (NULL, if none exists or search has been stopped)
Definition: rbs.cpp:44
const double threads
Number of threads to use.
Definition: search.hh:95
Space * last
The last solution space (possibly NULL)
Definition: rbs.hh:54
No-goods recorded from restarts.
Definition: core.hpp:1240
Space * master
The master space to restart from.
Definition: rbs.hh:52
#define forceinline
Definition: config.hpp:132
Engine * e
The actual engine.
Definition: rbs.hh:50
virtual Search::Statistics statistics(void) const
Return statistics.
Definition: rbs.cpp:101
bool shared(const ConstView< ViewA > &, const ConstView< ViewB > &)
Test whether views share same variable.
Definition: view.hpp:662
Gecode toplevel namespace
virtual bool stopped(void) const
Check whether engine has been stopped.
Definition: rbs.cpp:106
virtual ~RBS(void)
Destructor.
Definition: rbs.cpp:126
bool complete
Whether search for the next solution will be complete.
Definition: rbs.hh:64
bool shared
Whether the slave can be shared with the master.
Definition: rbs.hh:60