[Scip] decrease of memory

[Stefan Heinz]

Hi Ina,

some of the heuristics copy the problem to perform a LNS search which 
cost memory.

That is basically the main reason.

Best Stefan


On 04/24/13 15:39, Liffey1986 at gmx.de wrote:
> Hi all,
> I solved some easy instances with SCIP in default setting and with all 
> LNS heuristics turned off.
> The result wasn't as I expected it to be. For SCIP without LNS 
> heuristics the number of nodes went up, this was how I expected it to 
> be, because heuristics help finding early solutions which help 
> reducing the B&B tree.
> As a result for the increase of nodes I expected the memory used to go 
> up as well, but instead it decreased for about 20%.
> What is the explanation for this result? What else affects the memory 
> used?
> Thanks,
> Ina
>
>
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