How do you copy SiftData structure ?

[han-kyung-min]

Dear the author.

First of all, thanks for developing such a nice SW.

I am having a problem that you might be able to help out.
I am trying to do sift extraction on many images and match them in a different function/scope. For example, I want to exact Sift features on 100 images. Later on, I would like to do sift match between image 53 and image 96.
In order to do that, I have to keep SiftData structures in some other places in my memory. Then the question is how do you copy SiftData structure to some other variable ?
The problem is that I can copy "h_data" by memcpy. But, I don't know what to do with "d_data". It seems like this pointer points to somewhere in my GPU device. Ignoring "d_data" giving me error when I call MatchSiftData().
Correct me if I am wrong since I am not a GPU guy.

Could you give me some advice ?

[han-kyung-min]

I think it works OK if I do cudaMemcpy on d_data structure...
Thanks