[Cbc] multi-threading in Cbc

[John Forrest]

--enable-cbc-parallel

in

configure

On Fri, 2011-01-28 at 15:24 -0800, Calvin Tang wrote:
> Hi,
> 
> 
> I'm wondering if anyone knows how to make a CbcModel multi-threaded. I
> have a piece of code that looks like the following:
> 
> 
> OsiCbcSolverInterface solver;
> solver.loadFromCoinModel(model);
> 
> 
> CbcModel cbcModel(solver);
> 
> 
> cbcModel.initialSolve(); // Solve the initial LP relaxation.
> cbcModel.branchAndBound(); // Finish using a branch and cut algorithm.
> 
> 
> I think by default everything is serial. I tried to set the number of
> threads by calling setNumberThreads in CbcModel, but then when I ran
> the code above, an assertion failed:
> 
> 
> CbcModel.cpp:13264: int CbcModel::doOneNode(CbcModel*, CbcNode*&,
> CbcNode*&): Assertion `masterThread_' failed.
> 
> 
> I would appreciate it if someone could show me how to make it
> multi-threaded.
> 
> 
> Thanks,
> Calvin
> 
> 
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