[vtkusers] algorithm performance

[Gerrick Bivins]

Hi Bill,
We are building release. Our grids are large at least 10's - 100's of thousands of cells.
I'm seeing the behavior in a Paraview  install as well,
with auto-apply on. Trying to move the slice plane through
the dataset becomes less and less interactive as the dataset cell count increases.
So I was hoping there were some ways to speed this up.
Any other suggestions?
Gerrick

From: Bill Lorensen [mailto:bill.lorensen at gmail.com]
Sent: Friday, August 02, 2013 10:18 AM
To: Gerrick Bivins
Cc: vtkusers at vtk.org
Subject: Re: [vtkusers] algorithm performance

Also be sure you build VTK and your app Release and not Debug.


On Fri, Aug 2, 2013 at 11:08 AM, Gerrick Bivins <Gerrick.Bivins at halliburton.com<mailto:Gerrick.Bivins at halliburton.com>> wrote:
Hi All,
I'm looking for suggestions on how to speed up an algorithm on large unstructured grids, like vtkCutter.
I thought I could build an octree (or similar structure) from the input  and execute the vtkCutter on the octree
but it's not obvious to me how to do it. Is something like this possible?
How can I improve the speed of the algorithm? Performance seems to go down as cell count grows.
Gerrick

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