[ITK] [ITK-users] GPU support situation for ITK

[Joël Schaerer]

Hi Xiaopeng,

while it would probably be a fun project to work on, I would recommend 
reflecting a bit more on your problem before rushing into this.

What is your application? What registration algorithm are you using? Is 
every computation performed during these 6 minutes absolutely needed for 
your final application?

Sometimes thinking a bit about algorithms and the application at hand is 
even more beneficial than rolling out a super optimized implementation.

just my 2 cents,

joel

On 04/17/2014 04:46 PM, Xiaopeng Yang wrote:
>
> Then do you think it is worthwhile to give a shot? Right now the 
> algorithm I used for non-rigid registration takes about 6 min on a 
> desktop with Intel Core i7 3.2Ghz and 32G Ram. I would like to get the 
> results in almost real time, so I am thinking about implementing the GPU.
>
> Best regards,
>
> Xiaopeng
>
> *From:*Jim Miller [mailto:millerjv at gmail.com]
> *Sent:* Thursday, April 17, 2014 11:18 PM
> *To:* Xiaopeng Yang
> *Cc:* <insight-users at itk.org>
> *Subject:* Re: [ITK-users] GPU support situation for ITK
>
> Implementing algorithms on the GPU is a skill. Also, it is tricky to 
> get a GPU implementation to work across a large variety of GPUs.
>
> Jim
>
>
> On Apr 17, 2014, at 10:05 AM, "Xiaopeng Yang" <yxp233 at postech.ac.kr 
> <mailto:yxp233 at postech.ac.kr>> wrote:
>
>     Thank you Jim. I am still using ITK 3. I will try the latest
>     version. By the way, is it difficult to implement the GPU to other
>     algorithms? Can the GPU be implemented to all other algorithms?
>
>     Thanks,
>
>     Xiaopeng
>
>     *From:*Jim Miller [mailto:millerjv at gmail.com]
>     *Sent:* Thursday, April 17, 2014 10:46 PM
>     *To:* Xiaopeng Yang
>     *Cc:* <insight-users at itk.org <mailto:insight-users at itk.org>>
>     *Subject:* Re: [ITK-users] GPU support situation for ITK
>
>     A framework for GPU filters is in place in ITK. A limited number
>     of algorithms have been implemented using the GPU to serve as
>     models as to how other algorithms can be implemented.
>
>     Jim
>
>
>     On Apr 17, 2014, at 9:25 AM, "Xiaopeng Yang" <yxp233 at postech.ac.kr
>     <mailto:yxp233 at postech.ac.kr>> wrote:
>
>         Dear Users,
>
>         I am wondering what is the current situation of GPU
>         implementation in ITK. For example, for segmentation
>         algorithms like region growing and level set methods, has GPU
>         been implemented? How about the registration algorithms? Thank
>         you very much.
>
>         Best regards,
>
>         Xiaopeng
>
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