Status of hipFFT

[ex-rzr]

What features of cuFFT are actually implemented?
It's hard to say looking at header and source files.

1. There is a lot of commented code and empty switch cases, for example: https://github.com/ROCmSoftwarePlatform/rocFFT/blob/develop/library/src/hipfft.cpp#L224

2. hipfftExecC2C calls the same code for different directions (unlike hipfftExecZ2Z):
   https://github.com/ROCmSoftwarePlatform/rocFFT/blob/develop/library/src/hipfft.cpp#L858

3. Functions always return HIPFFT_SUCCESS and ignore result of rocfft_* functions.

4. Will hipFFT be a wrapper around cuFFT? Or it's supposed to be used with rocFFT only (on both ROCm and CUDA).

[bragadeesh]

hipFFT is a wrapper on top of rocFFT that was written to provide compatible interfaces. As you can see it is not fully done yet and is missing functionalities and has bugs; goal is to clean this out and get it tested well, unfortunately I don't have timeline on when that will happen