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bab.cpp
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4  * Christian Schulte <schulte@gecode.org>
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37 
38 #include <gecode/search.hh>
39 #include <gecode/search/support.hh>
40 
41 #include <gecode/search/seq/bab.hh>
42 #ifdef GECODE_HAS_THREADS
43 #include <gecode/search/par/bab.hh>
44 #endif
45 
46 namespace Gecode { namespace Search {
47 
48  Engine*
49  babengine(Space* s, const Options& o) {
50 #ifdef GECODE_HAS_THREADS
51  Options to = o.expand();
52  if (to.threads == 1.0) {
53  if (to.tracer)
55  else
57  } else {
58  if (to.tracer)
59  return new Par::BAB<EdgeTraceRecorder>(s,to);
60  else
61  return new Par::BAB<NoTraceRecorder>(s,to);
62  }
63 #else
64  if (to.tracer)
66  else
68 #endif
69  }
70 
71 }}
72 
73 // STATISTICS: search-other
Search engine options
Definition: search.hh:748
Computation spaces.
Definition: core.hpp:1668
Options expand(void) const
Expand with real number of threads.
Definition: options.cpp:47
double threads
Number of threads to use.
Definition: search.hh:753
Parallel branch-and-bound engine
Definition: bab.hh:47
Engine * babengine(Space *s, const Options &o)
Create branch and bound engine.
Definition: bab.cpp:49
SearchTracer * tracer
Tracer object for tracing search.
Definition: search.hh:771
Gecode toplevel namespace
Virtualize a worker to an engine.
Definition: support.hh:51