[Insight-developers] Fwd: [ITK 0012186]: itkBSplineDeformableTransform throws error when enabling multithreading
Nicholas Tustison
ntustison at gmail.com
Thu May 26 09:15:32 EDT 2011
Thanks, Wes, I appreciate it. I'm a bit confused, though. The bug report is for
the class itkBSplineDeformableTransform but you mention the class
itkBSplineScatteredDataPointSetToImageFilter. Also, the Mantis bug reports
problems with number of threads where you're reporting the number of levels
for the latter filter is the problem. Could you clarify?
Thanks,
Nick
On May 26, 2011, at 8:49 AM, Wes Turner wrote:
> Nick,
>
> Sorry for the delay. I'm working under a heavy deadline on something else.
>
> Karthik and I have a test driver that we are working with. One of us will take a crack at sending you code and test data that exhibit the failure some time today (we need to sanitize a few things), but basically it just required the pipeline:
>
> itkImageFileReader()
> ... pull out image points into point set
> itkBSplineScatteredDataPointSetToImageFilter()
> - Spline order 3
> - Levels 2
> - Number of ctrl points large ... say 50% of the x and y extents of the data
>
> On update of the BSplineFilter, the aforementioned exception is thrown.
>
> - Wes
>
> On Wed, May 25, 2011 at 10:19 AM, Nicholas Tustison <ntustison at gmail.com> wrote:
> Hey Wes,
>
> So I'm trying to pinpoint the problem. Does this problem occur during
> image registration? I tried to get the error by setting the transform in the
> ResampleImageFilter and setting the number of threads > 1 but didn't
> have a problem. Since the bug tracker doesn't mention the specific use
> context of the transform and since the transform itself is just an object
> and isn't something for which you specify more than one thread, I'm
> hoping you could give me some further direction.
>
> Thanks,
> Nick
>
>
>
>
> On May 20, 2011, at 10:24 AM, Wes Turner wrote:
>
>> Nick,
>>
>> I am having a similar issue, but I haven't had an opportunity to look into it yet. I expect that this is easy to replicate given that I am at least the third person to run into the problem. I think that if you use an arbitrary image, pull it into itkBSplineDeformableTransform, choose a relatively large number of spline points and a level >1, you will quickly find it. Right now I am on travel, but if you have problems replicating the issue, I can work with you to get a failure case when I get back ... Monday possibly.
>>
>> - Wes
>>
>> On Fri, May 20, 2011 at 9:55 AM, Nicholas Tustison <ntustison at gmail.com> wrote:
>> Hi developers,
>>
>> I have been assigned the following bug but I'm skeptical that the issue is really a bug
>> as described. Is there a mechanism on Mantis for requesting more input (e.g. code) from the
>> person who reported the bug?
>>
>> Thanks,
>> Nick
>>
>> Begin forwarded message:
>>
>>> From: Mantis Bug Tracker <mantis at public.kitware.com>
>>> Date: May 19, 2011 4:33:11 PM EDT
>>> To: ntustison at wustl.edu
>>> Subject: [ITK 0012186]: itkBSplineDeformableTransform throws error when enabling multithreading
>>>
>>>
>>> The following issue has been ASSIGNED.
>>> ======================================================================
>>> http://public.kitware.com/Bug/view.php?id=12186
>>> ======================================================================
>>> Reported By: Erik Türke
>>> Assigned To: Nick Tustison
>>> ======================================================================
>>> Project: ITK
>>> Issue ID: 12186
>>> Category: ITK
>>> Reproducibility: always
>>> Severity: crash
>>> Priority: high
>>> Status: assigned
>>> Resolution Date:
>>> Sprint:
>>> Sprint Status: backlog
>>> ======================================================================
>>> Date Submitted: 2011-05-12 07:53 EDT
>>> Last Modified: 2011-05-19 16:33 EDT
>>> ======================================================================
>>> Summary: itkBSplineDeformableTransform throws error when
>>> enabling multithreading
>>> Description:
>>> When enabling multithreading in itk and set the number of threads > 1, the
>>> itkBSplineDeformableTransform throws an error saying:
>>>
>>> itk::ExceptionObject (0x24efee0)
>>> Location: "void itk::BSplineDeformableTransform<TScalarType, NDimensions,
>>> VSplineOrder>::SetParameters(const typename itk::Transform<TScalarType,
>>> NDimensions, NDimensions>::ParametersType&) [with TScalarType = double, unsigned
>>> int NDimensions = 3u, unsigned int VSplineOrder = 3u]"
>>> File:
>>> /scr/morse1/programming/src/ITK/Modules/Core/Transform/include/itkBSplineDeformableTransform.txx
>>> Line: 354
>>> Description: itk::ERROR: BSplineDeformableTransform(0x24efc40): Mismatch between
>>> parameters size 19728016 and expected number of parameters 1536
>>>
>>> If you set the number of threads to 1 it works perfectly.
>>> I encountered this error with the ITK release 3.20 (review code) as well.
>>>
>>> ======================================================================
>>>
>>> Issue History
>>> Date Modified Username Field Change
>>> ======================================================================
>>> 2011-05-12 07:53 Erik Türke New Issue
>>> 2011-05-19 16:33 Hans Johnson Assigned To => Nick Tustison
>>> 2011-05-19 16:33 Hans Johnson Status new => assigned
>>> ======================================================================
>>>
>>
>>
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>>
>>
>> --
>> Wesley D. Turner, Ph.D.
>> Kitware, Inc.
>> Technical Leader
>> 28 Corporate Drive
>> Clifton Park, NY 12065-8662
>> Phone: 518-881-4920
>
>
>
>
> --
> Wesley D. Turner, Ph.D.
> Kitware, Inc.
> Technical Leader
> 28 Corporate Drive
> Clifton Park, NY 12065-8662
> Phone: 518-881-4920
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