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Add support for parallel BAB #67

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Add support for parallel BAB #67

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13 changes: 12 additions & 1 deletion src/solvers/gecode/procedures/localprocedures.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -99,8 +99,19 @@ solve_generic_portfolio(LocalModel * base, GIST_OPTIONS * lo, int iteration) {
localOptions.threads = n;
}

SEBs sebs;

for (unsigned int i = 0; i < strategies; ++i){
Search::Option o;
unsigned int threads = base->options->portfolio_threads() / strategies;
if (threads == 0) threads = 1;
o.threads = threads;
o.stop = localStop;
sebs << bab<LocalModel>(o);
}

// Local portfolio meta-engine
PBS<LocalModel, BAB> e(l, localOptions);
PBS<LocalModel, BAB> e(l, sebs, localOptions);

// Solve the local problem for the given search strategy
bool found_local_solution = false;
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