Thank you for clearing this up. I was also in doubt.
On Thu, Dec 4, 2008 at 9:43 AM, Yves Revaz <yves.revaz_at_epfl.ch> wrote:
>
> micic_at_physics.usyd.edu.au wrote:
>
>> Hi,
>>
>>
>> TreeAllocFactor should be at least 0.65, recommended is 0.8, if
>> necessary it can go up to 1.5 (from previous threads on this subject). I
>> would like to know is there an upper limit for the value of this factor.
>> How is the performance of the code affected if this factor goes to 2.0 or
>> even higher? The way I see it, at some maximum value, we end up with a
>> particle per node, right?
>>
>> Miroslav
>>
>>
>
> Hi Miroslav,
>
> TreeAllocFactor is used to allocate memory to the tree, at the beginning of
> the run.
> It does not mean that a large tree will be created (the structure and size
> of the tree
> is always determined by the particle distribution and OpeningCriterion
> parameter).
> However, in some cases (particles at very large distances or clumpy
> structures),
> the tree needs to be extended and will consume more memory. In that cases,
> a larger
> TreeAllocFactor is necessary.
>
> So, a higher TreeAllocFactor does not affect the code performance. Except,
> obviously,
> if you are out of memory ;-) .
>
> Cheers,
>
> yves
>
>
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Received on 2008-12-04 11:32:58