[Insight-developers] Addressing Failures of ResampleImageFilter9Test

[Bill Lorensen]

Luis,

I believe I found the partition. I checked most (not all)
CMakeLists.txt files (in the itkSystemInformationTest output) for
passing and failing platforms.

Here is what I concluded:

Platforms that are failing have a common cmake variable set:
//Enable Streaming SIMD Extensions 2 implementation of rounding
// (hardware dependant).
VNL_CONFIG_ENABLE_SSE2_ROUNDING:BOOL=ON

those that are passing have one of two conditions:

1) ITK_USE_CENTERED_PIXEL_COORDINATES_CONSISTENTLY:BOOL=OFF
or
2) VNL_CONFIG_ENABLE_SSE2_ROUNDING:BOOL=OFF

Should we expect the same results regardless of the SSE2 setting? If
not, then we can check in another baseline. If the results should be
the same, we have some work to do.

Bill


On Sun, Aug 16, 2009 at 12:30 PM, Luis Ibanez<luis.ibanez at kitware.com> wrote:
>
> FYI:
>
> The test  "ResampleImageFilter9Test":
>
> Has been failing since we enabled the flag
>
> ITK_USE_CENTERED_PIXEL_COORDINATES_CONSISTENTLY
>
> What seems to be special about this test is that it runs
> on an image of RGBPixels, and therefore, it uses:
>
> itk::VectorResampleImageFilter  and
> itk::VectorNearestNeighborInterpolateImageFunction
>
> What is curious, is that is passes on some machines and fails
> on others, and it doesn't seem to be a clear partition between
> the two groups, (see this link):
> http://www.cdash.org/CDash/testSummary.php?project=2&name=ResampleImageFilter9Test&date=2009-08-16
>
>
> We will be following on this during the week....
>
>
> Any suggestions/hints are welcome...
>
>
>      Thanks
>
>
>          Luis
>
>
>
>
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