[Cbc] Issue with multithread

[Ted Ralphs]

I'm not sure what you mean by "I have the threads option,"  but you
probably need to set the number of threads to get it to run in parallel. I
believe it runs sequential by default, even when built with threads.

Ted

On Wed, Sep 18, 2019 at 1:08 PM Haroldo Gambini Santos <haroldo at ufop.edu.br>
wrote:

> Hi
> >
> >
> > I am using cbc inside python.
> >
> Calling how ? Which framework ?
> >
> > And I want to use the multi thread option
> >
> > I have the threads option. And I even tried to re-compile the code
> > with the multi threading option
> >
> OS ? Compiler ?
> >
> >
> > But still. When the preparation phase is over the threads are not
> > created and the main process is handling in wait till I kill it.
> >
> How far the search went ?  While solving the LP relaxation only one
> thread is used. Only in the branch and bound multiple threads are used.
> >
> >
> > Please assist
> >
> >
> >
> > _______________________________________________
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> > Cbc at list.coin-or.org
> > https://list.coin-or.org/mailman/listinfo/cbc
>
> --
> =============================================================
> Haroldo Gambini Santos
> Computing Department
> Universidade Federal de Ouro Preto - UFOP
> email: haroldo at ufop.edu.br
> home/research page: www.decom.ufop.br/haroldo
>
>
> It has long been an axiom of mine that the little things are infinitely
> the most important.
> -- Sir Arthur Conan Doyle, "A Case of Identity"
>
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>


-- 
Dr. Ted Ralphs
Professor, Industrial and Systems Engineering
Lehigh University
(610) 628-1280
ted 'at' lehigh 'dot' edu
coral.ie.lehigh.edu/~ted
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