Replace DCRFT() or SCRFT() function using cufft librabry

Accelerated Computing GPU-Accelerated Libraries
1

I’ve been looking to replace DCRFT (init, x, inc2x, y, inc2y, n, m, isign, scale, aux1, naux1, aux2, naux2) call with cufft library in fortran.
After learning from cufft documentation, I have figured out how to use cufft library.

  1. Create Plan
  2. Do fourier Transformation
    So in my case i used cufftPlanMany(plan, rank, n, inembed, istride, idist, onembed, ostride, odist, ffttype, batch ) followed by cufftExecC2R( plan, idata, odata ) . I have problem that what all arguments should be used from DCRFT in cufftPlanMany and cufftExecC2R. Especially with idist, odist, n(cufftplan), idata,odata.
    cuFFT :: CUDA Toolkit Documentation
    IBM Documentation
    Fortran CUDA Interfaces :: PGI version 17.10 Documentation for x86 and NVIDIA Processors
    It would be great if you provide any help for this conversion.

Thanks