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.
    https://docs.nvidia.com/cuda/cufft/index.html#function-cufftplanmany
    https://www.ibm.com/support/knowledgecenter/en/SSFHY8_6.1/reference/am5gr_hscrft.html#am5gr_hscrft__am5gr_fscrft
    https://www.pgroup.com/resources/docs/17.10/x86/pgi-cuda-interfaces/index.htm#cflib-fft-cuf-host
    It would be great if you provide any help for this conversion.

Thanks