[Gate-users] GATE 7.0 GPU PET example; incomplete phantom?

[Patay Gergely]

Hello everyone,

I encountered this bug too.
Actually, even the main-cpu.mac won't work out-of-the-box, because the
Gate[Geometry|Source]VoxelInterfileReader::ReadData function assumes that the
binary data has the extension ".i33" regardless of the "name of data file" row
in the .hdr file.
This can easily circumvent by renaming 'thorax_phantom.bin' to
'throrax_phantom.i33' (or alternatively, not overwriting the m_dataFileName
variable with a hardcoded one).

A more serious issue is that the GPU version does not seem to respect the
/gate/source/srcvoxel/setPosition command (and the voxel size information from
the interfile header), so the phantom is out of the FOV.
See the attached plot where red (CPU) and blue (GPU) dots represent the source
positions from Singles.dat files.

cheers,
   Gergely

---

Gergely Patay
   physicist
Mediso Medical Imaging Systems Ltd.
Hungary



On 2014-05-14 10:11, JAN Sebastien wrote:
> Hi Bryan,
>
> In the ccmake interface, did you set ON the following variable:
>
> GATE_DOWNLOAD_EXAMPLES_DATA
>
> ?
>
> Cheers
>
> Seb
>
> *De :*gate-users-bounces at lists.opengatecollaboration.org
> [mailto:gate-users-bounces at lists.opengatecollaboration.org] *De la part de*
> Bryan McIntosh
> *Envoyé :* mardi 13 mai 2014 17:12
> *À :* gate-users at lists.opengatecollaboration.org
> *Objet :* [Gate-users] GATE 7.0 GPU PET example; incomplete phantom?
>
> Hi everyone,
>
> I successfully installed GATE 7.0 and the Nvidia CUDA tools yesterday, and am
> eager to try out one of the GPU examples on my workstation. However, when I
> attempt to run the PET example it looks like there may be a problem with the
> thorax_phantom.bin that was downloaded during the installation. The exact error
> message is:
>
> *** G4Exception : GeomSolids0002
>
>        issued by : G4Box::G4Box()
>
> Dimensions too small for Solid: ncat_solid!
>
>       hX, hY, hZ = 0, 0, 0
>
> Has anyone else run into this? is there a different phantom file that I should
> be using? The MD5 hash on the file seems to match with the
> thorax_phantom.bin.md5 file that was provided in the example folder.
>
> Thanks for your time,
>
> -Bryan
>
>
>
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>



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