Multi-threading CBC Solver?

[Antonio Medrano]

I'm using the cbc solver and or-tools in the python environment. Is there a way to multi-thread the solver to use more than one processor core?

[Berend Berendsen]

I am wondering the same thing. CBC does have an --enable parallel option in its code. 

[Driss Lahlou]

Hi,

Or-tools doesn't implement a parallelism mechanism.

Regards.

[Mark]

I think it would simply mean telling CBC to be compiled in parallel mode.  This has been on my wish list for a while now too.  In fact, I think compiling to run using multiple cores should be the default for CBC as it is the default for the commercial solvers.

I haven't looked closely, but I wouldn't expect it would mean much, if any, change to the actual ortools API.