[Insight-developers] Changing ImageRegionMultidimensionalSplitter

[Kevin H. Hobbs]

On Tue, 2009-08-18 at 10:57 -0400, Bradley Lowekamp wrote:
> Hello Kevin,
> 
> 
> Thank you for sharing your implementation. I attached the patch which
> I implemented and tested fairly well, to the bug report:
> 
> 
> http://www.itk.org/Bug/view.php?id=8524
> 
> 
> I would be curious if this implementation would work for you.
> 

I'll have to take a look at the splits it produces.

I wanted an exact number of regions to match a number of MPI nodes, not
n^d or n^3 regions. That's why I named it non-cube splitter.

I wanted the regions to be as close to spheres(cubes) as possible to
minimize the padding required around each region during parallel
computation. That's why my name is a bad one.

> 
> I briefly looked at your. It appear you have a different approach. I
> would describe it as greedily recursively splitting the largest
> region?

Yes, that's accurate. I can't quite follow what happens in the VTK
splitter, and making that work in ND was completely beyond me.
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