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bab.cpp
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1/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
2/*
3 * Main authors:
4 * Christian Schulte <schulte@gecode.org>
5 *
6 * Copyright:
7 * Christian Schulte, 2009
8 *
9 * This file is part of Gecode, the generic constraint
10 * development environment:
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33
34#include <gecode/search.hh>
36
38#ifdef GECODE_HAS_THREADS
40#endif
41
42namespace Gecode { namespace Search {
43
44 Engine*
45 babengine(Space* s, const Options& o) {
46#ifdef GECODE_HAS_THREADS
47 Options to = o.expand();
48 if (to.threads == 1.0) {
49 if (to.tracer)
51 else
53 } else {
54 if (to.tracer)
55 return new Par::BAB<EdgeTraceRecorder>(s,to);
56 else
57 return new Par::BAB<NoTraceRecorder>(s,to);
58 }
59#else
60 if (to.tracer)
62 else
64#endif
65 }
66
67}}
68
69// STATISTICS: search-other
Search engine implementation interface
Definition search.hh:899
Search engine options
Definition search.hh:746
Options expand(void) const
Expand with real number of threads.
Definition options.cpp:43
SearchTracer * tracer
Tracer object for tracing search.
Definition search.hh:769
double threads
Number of threads to use.
Definition search.hh:751
Parallel branch-and-bound engine
Definition bab.hh:43
Virtualize a worker to an engine.
Definition support.hh:47
Computation spaces.
Definition core.hpp:1744
Search engines
Engine * babengine(Space *s, const Options &o)
Create branch and bound engine.
Definition bab.cpp:45
Gecode toplevel namespace