theoretical time for FFT 1k

Hello everybody,

Does anyone know what’s the theoretical time required for one fft 1D 1024 points to be done ?

If the way to rate that is not time, could you tell me what’s the variable that could be used to ?

Thanks in advance.

You might try the CUFFT benchmark tool
http://forums.nvidia.com/index.php?showtopic=42482

You’re interested in batch=1 and nx=1024. Note, benchmarks aren’t always meaningful and don’t necessarily represent real world application times. But since you’re asking for theoretical times, there’s some indication.