[Castor-users] Benchmark query

[tmerlin]

Hi Kajal,

Both reference and output images are saved in interfile. You should be 
able to open it with any image editor supporting this format. The .img 
file is a .raw image of 112x112x109 voxels of 2.0x2.0x2.027 mm.

Regarding your results, several users with recent compilers experienced 
similar issues with the benchmark. The difference values weren't as high 
as in your results though. Could you tell us what is your computer 
hardware/OS ? And what is your compiler ? Is there any artifact in the 
generated image ?

Did you try the other benchmarks as well ?

Best regards,

Thibaut


On 13/07/2017 09:50, Kajal Aggarwal wrote:
> Hello everyone,
>
> I am running a benchmark "run_benchmark_pet_histogram.sh", downloaded 
> from the Castor site. It generates two files, 
> "benchmark_pet_histogram_challenger_it2.hdr" and 
> "benchmark_pet_histogram_challenger_it2.img" and it compares the files 
> generated with the reference files. I am copying the results below. 
> Can anyone please explain me how can I open the two files generated 
> and why the results of the benchmark PET are not overlapping with the 
> reference files.
>
>
>
>
> Check benchmark results (compare reconstructed image with the 
> reference one)
> ==================================================================================================================
>   --> !!!!! The mean relative difference over the whole image is 
> -0.0459751 !
>             It is supposed to be between -5e-07 and 5e-07 !
>   --> !!!!! The mean relative difference for each slice has a maximum 
> absolute value of 2.76492 !
>             It is supposed to be between -5e-05 and 5e-05 !
>             The test failed for 104 slices !
>   --> !!!!! The maximum absolute relative difference is 2.71219 !
>             It is supposed to be below 0.0001 !
>
>   --> !!!!! Benchmark tests failed (3 problems found) !
>             Double check all what you have done first. Then email the 
> mailing list.
>
>
> -- 
> Thanking you.
> Yours sincerely,
> Kajal Aggarwal
>
>
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> Castor-users at lists.castor-project.org
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-- 
Thibaut MERLIN -- PhD

Docteur en Imagerie Médicale au Laboratoire de Traitement de l'Information Medicale (LaTIM - INSERM UMR 1101)
Bâtiment 1
CHRU Morvan - 2, Av. Foch
29609 Brest CEDEX - FRANCE
Tel: 06.75.12.24.90

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