[Rtk-users] CUDA displaced detector filter failure

[Simon Rit]

Hi Chao,
I have hunted the bug and I fixed an issue:
https://github.com/SimonRit/RTK/commit/415756016d25edaf0fe999a46f3b5ad231b0e032
Can you try again?
Simon

On Tue, Oct 14, 2014 at 1:42 PM, Chao Wu <wuchao04 at gmail.com> wrote:

> Thanks Simon, however this does not solve the issue here.
> I'll go back to this later to try to reproduce it with sample data, but
> now I am a bit busy with something else. Sorry at the moment.
>
> Regards, Chao
>
> 2014-10-14 10:01 GMT+02:00 Simon Rit <simon.rit at creatis.insa-lyon.fr>:
>
>> Hi Chao,
>> Yesterday, I investigated the dynamic analysis log and found a problem in
>> the filter that has been corrected (see commit here
>> <https://github.com/SimonRit/RTK/commit/fef0b132211377fbabaa812d1ce0c3ec3c0827e3>).
>> Could you check if it fixes your issue please?
>> Thanks,
>> Simon
>>
>> On Fri, Oct 10, 2014 at 2:30 PM, Simon Rit <
>> simon.rit at creatis.insa-lyon.fr> wrote:
>>
>>> Hi Chao,
>>> Thanks for the report, it's new so  we might have left special cases
>>> behind... sorry. Is this something that occurs when launching rtkfdk,
>>> rtkwangdisplaceddetectorweighting or one of your own applications?
>>> It would be very useful if you could manage to reproduce this with a set
>>> of command lines that would simulate data first and then apply the
>>> weighting, similar to what's here
>>> <http://wiki.openrtk.org/index.php/RTK/Scripts/FDK> for example.
>>> Regards,
>>> Simon
>>>
>>> On Fri, Oct 10, 2014 at 10:58 AM, Chao Wu <wuchao04 at gmail.com> wrote:
>>>
>>>> Hi all,
>>>>
>>>> I am trying the new cuda displaced detector filter but
>>>> got cudaErrorLaunchFailure. This error was returned by cudaFree(dev_geom)
>>>> at the end of the code, but since this error type is not registered with
>>>> cudaFree(), it would be from previous, asynchronous launches. By
>>>> using cudaDeviceSynchronize() I found the error coming after calling
>>>> kernel_displaced_weight<<<...>>>(...).
>>>>
>>>> One interesting thing is that when the error occurs depends on the
>>>> number of projections processed at once (controlled by the --subset=N
>>>> option of rtkfdk.exe for example). If I use subset=1 then it fails right
>>>> with the first projection; if subset=2 it fails at the 16th run when
>>>> processing the 31st and 32nd projections; if subset=4, at the 14th run; if
>>>> subset=16 (default), at the 6th run; and so on.
>>>>
>>>> The input region of each projection is about 1944x200 (the 2nd
>>>> dimension differs a little bit of course) and the output region is then
>>>> about 3888x200. A GTX580 card is used.
>>>>
>>>> Any suggestions and comments on this? Thanks.
>>>>
>>>> Regards,
>>>> Chao
>>>>
>>>> _______________________________________________
>>>> Rtk-users mailing list
>>>> Rtk-users at public.kitware.com
>>>> http://public.kitware.com/mailman/listinfo/rtk-users
>>>>
>>>>
>>>
>>
>
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