[Rtk-users] CUDA Ramp filter

[Shiras Abdurahman]

Dear Cyril,

Thanks a lot. Now rtkramp.exe works with cuda option.
I am trying to integrate rtk cuda ramp filter into my recon program. I read
the projections with ProjectionsReader and pass image pointer to cuda ramp
filter pipeline using
cudaRampFilter->SetInput(projections);

I am getting runtime error and it says
Error during cuda ramp filtering ::
D:/programming/cpp/ext_libs/rtk_1_2/src/code/rtkCudaFFTConvolutionImageFilter.cu
:97:
itk::ERROR: CUFFT ERROR #2

Do I need to enable or disable any parameter while reading projections to
get rid of this error? I changed rtk_proj_reader_->Update
to rtk_proj_reader_->UpdateOutputInformation();
But I am still getting the error.
The error exists only with CudaFFTRampImageFilter  and FFTRampImageFilter
works fine.

With regards,
Shiras






On Tue, Jun 14, 2016 at 3:38 PM, Cyril Mory <cyril.mory at uclouvain.be> wrote:

> Hi Shiras,
>
> We found that bug recently with Sebastien Brousmiche and fixed it, at
> least for the use case we were considering. Can you try with the git master
> version of RTK ?
> Alternatively, you can replace
>
> reader->Update()
>
> with
>
> reader->UpdateOutputInformation()
>
> in line 61 of rtkramp.cxx and see if it fixes the problem.
>
> Regards,
> Cyril
>
>
> On 06/14/2016 03:12 PM, Shiras Abdurahman wrote:
>
> Dear all,
>
> When I use rtkramp with cuda option, I am getting following error
>
> ExceptionObject caught with streamer->Update() in file
> D:\programming\cpp\ext_li
> bs\rtk_1_2\src\applications\rtkramp\rtkramp.cxx line 93
>
> itk::ExceptionObject (000000ADA7DAF220)
> Location: "unknown"
> File:
> d:\programming\cpp\ext_libs\rtk_1_2\src\code\rtkCudaFFTConvolutionImageFil
> ter.txx
> Line: 50
> Description: itk::ERROR: CudaFFTRampImageFilter(000000ADAA53B490):
> CudaFFTConvol
> utionImageFilter assumes that input requested and buffered regions are
> equal.
>
> However, cpu version of ramp filter works fine.
>
> Thanks in advance.
>
> With regards,
> Shiras
>
>
> _______________________________________________
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>
>
>
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