Some wishes for cuda 2.2 release or cuda 2.3

Hallo @ all

  1. It is possible to implement a window function like “Hann window” or “Hamming window” in the CUDAFFT? The “Hann window” is a very important fft function.

http://en.wikipedia.org/wiki/Hamming_funct…window.5B5.5D

  1. The second wish is a absolute value function for the CUDAFFT. --> absolute value = radical(Re^2 +Im^2) With this function we can save the half memcopy bandwith. This is a great advantage.

You could easily write a kernel to pre-process the data (to apply a window function, for example) before calling CUFFT. Just set it up with similar parameters for batch size, number of data points, etc.