I am using FFT for an Image Processing application. I am planning to replace my existing CPU based FFT (which is based on Cooley Tuckey algorithm) with CUFFT.
I have few questions regarding CUFFT.
( 1 ) Which is the FFT algorithm used internally by CUFFT. Is it Cooley Tuckey?
Then only I can compare the performance.
( 2 ) How much speed up can I expect for an Image of size 5k * 5k? A rough idea.
My CPU application takes around 71 seconds to complete.
Thanks in advance.