[Cbc] branchAndBound with a hot-start solution

John Forrest john.forrest at fastercoin.com
Mon Nov 24 13:05:20 EST 2014


Kibaek,


Can get assertion fail - fixed in stable.  Got same assertion with 
(0,0,5) - not a loop - see if fixed for you.

John Forrest
On 24/11/14 13:57, Kibaek Kim wrote:
> Dear John,
>
> I am experiencing strange behaviors resulting from branch-and-bound hot-start. I am using the version of Stable 2.8. I have attached a simple code, mps file and hot-start solution file to reproduce results. The code will read mps file and hot-start solution file and try solving the problem. However, the following three settings result in different behaviors:
> 1. CbcStrategyDefault strategy(0); // assertion fail
> 2. CbcStrategyDefault strategy(0, 5, 5); // infinite loop
> 3. CbcStrategyDefault strategy(1); // success
>
> Best,
> Kibaek
>
>
>
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