What is cufiNUFFT using streams for at the moment

[JBlaschke]

While researching flatironinstitute/jax-finufft#4 (comment) I came across:

cufinufft/src/memtransfer_wrapper.cu

Line 88 in a8c979e

cudaStream_t* streams =(cudaStream_t*) malloc(d_plan->opts.gpu_nstreams*

,
and was wondering what cufiNUFFT is using streams for. I searched from streams and couldn't find any places where this is used, so is this WIP?

[MelodyShih]

Hi Johannes, no, this is not WIP and the lines of codes can be removed. The streams were created in an experiment of accelerating computations when we have multiple data with same locations of NUpts.

[JBlaschke]

Right! Thanks for the info. I will pick up #99 again, and move the stream descriptor into a struct that also sores device and context.