[Insight-users] [insight] - Using ITK on a non c/ cpp/ cxx extensions

[Gabriel Santiago]

Actually, I tried that... But ITK won't work if I don't put the main file
inside the CMakeLists.txt.

As in this example:

PROJECT( PROJECT_NAME )
FIND_PACKAGE ( ITK REQUIRED )
IF ( ITK_FOUND )
INCLUDE( ${ITK_USE_FILE} )
ENDIF( ITK_FOUND )
ADD_EXECUTABLE( PROJECT_NAME main.cpp )
TARGET_LINK_LIBRARIES ( PROJECT_NAME ITKCommon ITKIO)

I tried another cpp (and h) files but didn't work...

---------- Forwarded message ----------
From: Octavian Soldea <octaviansoldea at gmail.com>
Date: 18 October 2012 12:05
Subject: Re: [Insight-users] [insight] - Using ITK on a non c/ cpp/ cxx
extensions
To: Gabriel Santiago <santiago.eletrica at gmail.com>


Hi Gabriel

I begin to understand the configuration in which you operate. Is the
following an option? Let the "main" control calls to CUDA and ITK.
Pack CUDA related code in a library which exposes h files only. Then
the "main" control decides when/if to access CUDA and based on
decisions from CUDA outputs you call ITK.
There should be some data data that is passed between the "main" (that
uses ITK) and the CUDA library and vice-versa. Please note that the
code in .cu and .h which is pure C/C++ can be called from "main". What
is not possible to call from c/cxx/cpp/"main" files are CUDA proper
calls, such as kernel calls.

Please let me know if this solves your problem or you need more information.

Good luck,
   Octavian

On Thu, Oct 18, 2012 at 10:30 AM, Gabriel Santiago
<santiago.eletrica at gmail.com> wrote:
> Hello Octavian, thank you for your reply!
>
> My problem is that I must use ITK inside a Cuda file (extension .cu)
since I
> need to use some Cuda functions and they won't work in a cpp or c file.
> I tried to proceed as usual, just by changing main.CPP to main.CU on
> CMakeLists.txt file, but it didn't work.
>
> Do you think that, if I specify the toolchain I am using, it could work?
>
> I also tried to create a .h file, but for an unknown reason, ITK doesn't
> work if I put a non ITK header file in my project. (Does anyone here know
> why?)
>
> Thanks again,
>
> On 18 October 2012 11:23, Octavian Soldea <octaviansoldea at gmail.com>
wrote:
>>
>> Hi Gabriel
>>
>> Could you please be a bit more specific? I do not understand "use ITK
>> on a .cu (CUDA) file". I believe your problem is that some functions
>> are not recognized in the cpp/c/cxx files.
>> Sometimes, it helps to move functions to .h files. Please note that
>> itk comes with some OpenCL support.
>>
>> Best regards,
>>     Octavian
>>
>> On Thu, Oct 18, 2012 at 10:08 AM, Gabriel Santiago
>> <santiago.eletrica at gmail.com> wrote:
>> > Hi guys!
>> >
>> > I need to use ITK on a .cu (CUDA) file.
>> > I tried to use CMake, and change the main file extension to .cu, but
>> > obviously didn't work. Also tried to specify the toolchain that it
>> > should
>> > use, but no good.
>> >
>> > Can anyone here help me, please?
>> >
>> > Regards,
>> >
>> > --
>> > Gabriel Santiago
>> >
>> > ~"As long as I live so long do I learn"~
>> > Ramakhrishna
>> >
>> >
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>
>
>
>
> --
> Gabriel Santiago
>
> ~"As long as I live so long do I learn"~
> Ramakhrishna
>



-- 
Gabriel Santiago

~"As long as I live so long do I learn"~
Ramakhrishna
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