Hi Cyril,
Sorry for my late answer. First thank you because your last trick
(removing <InpuImageType>) worked, I correctly compiled and installed
everything.
I am late because I thought that I did something wrong since when I
tested the code by simply projecting then backprojecting a simple
volume, the results between the CPU-codes and GPU-codes were different
and the GPU result cas clearly wrong.
I understood this morning the problem and put it in evidence : the
CudaForwardProjectionImageFilter seems to be not adapted to the case
when the size of voxels and pixels are not equal to 1 whereas the
CudaBackProjectionImageFilter is OK for that !!
I will try to debug it and let you know.
I wish to all of you a Merry Christmas and relaxing holidays.
Best ,
Yannick
Le 18/12/2017 à 16:52, Cyril Mory a écrit :
Hi again Yannick,
Simply removing the <InputImageType> on line 9 of your .json file made
it compile. I didn't test it yet. Let us know if that works for you.
Cyril
On 18/12/2017 16:31, Cyril Mory wrote:
Hi Yannick,
You seem to be in a hurry, so I'll start with an incomplete answer:
the CudaForwardProjectionImageFilter is templated over its input and
output image type, but the CudaBackProjectionImageFilter isn't
(compare rtkCudaForwardProjectionImageFilter.h and
rtkCudaBackProjectionImageFilter.h, there is not "template <>" before
the class definition in ...Back..., while it is there in ...Forward...).
I'm trying to modify your .json file accordingly, recompile and test,
but I never use SimpleRTK myself, so you might find the solution
before I do. If so, please report back on this mailing list.
Cyril
On 18/12/2017 16:07, Yannick BOURSIER wrote:
Hello all,
I really need in "relative" emergency to execute the kernel
CudaBackProjectionImageFilter using the Python Wrapper provided by SimpleRTK.
Unfortunately, this is not implemented in cuda
(CudaForwardProjectionImageFilter is but not the BackProjection).
I tried to define a json file (in attachement) on the base of
CudaForwardProjectionImageFilter (since all the h, hxx, cxx, files I looked at
seemed to be the same for these two kernels) but it does not compile (cmake
instruction OK but not the make instruction) with the following error :
/data/boursier/Compile/rtk-bin-extended/SimpleRTK-build/Code/BasicFilters/src/srtkCudaBackProjectionImageFilter.cxx:
In member function ‘rtk::simple::Image
rtk::simple::CudaBackProjectionImageFilter::ExecuteInternal(const
rtk::simple::Image&, const rtk::simple::Image&)’:
/data/boursier/Compile/rtk-bin-extended/SimpleRTK-build/Code/BasicFilters/src/srtkCudaBackProjectionImageFilter.cxx:132:16:
error: ‘rtk::CudaBackProjectionImageFilter’ is not a template
typedef rtk::CudaBackProjectionImageFilter<InputImageType> FilterType;
I would very much appreciate some help please because at this point, I have no
idea about the problem...
Thanks in advance,
Best regards,
Yannick Boursier
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