[Cbc] muti-thread compile for cbc-2.7.8
xiwen
xiwenwang at gmail.com
Thu Nov 29 14:05:36 EST 2012
hi noli,
how to make proximity on for CBC?
is it just like
CBC -proximity on ?
my CBC (version 2.4.2) seems not have that.
thanks
Sent from my iPhone
On Nov 28, 2012, at 5:48 PM, Noli Sicad <nsicad at gmail.com> wrote:
> Upgraded to gcc 4.7.2.
>
> The problem is the trunk code that I placed in the cbc-2.7.8. I was
> after on the new heuristic proximity.
>
> The other day, I realized that proximity code were already merged
> before the release.
>
> Compiling the clean cbc-2.7.8 is working with threads.
>
> My macbookpro is running crazy, the fans is running and all the 8
> threads are used.
>
> I got amazing results with threads and proximity on.
>
> Previously, my MIP model was solved with "proximity on" in 28m14.947s.
>
> Now with -threads 8 and proximity on, the same MIP model is solved in
> 1m17.377s. The fan is working and the cpu % between 618% to 694%
> usage.
>
> Using Htop, you can see that all the 8 threads at 100%.
>
> Noli
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