We want to be able to leverage GPUs in halo2, via the ec-gpu crate. This requires two changes:
The curve implementation needs to support producing the GPU kernel for finite field arithmetic.
halo2 needs to use GPU-aware MSM and FFT algorithms.
This issue covers the second change. We should implement the GpuEngine trait from the ec-gpu crate (behind a gpu feature flag), and then the ec-gpu-gen crate should be able to generate the necessary CUDA/OpenCL source code for MSMs and FFTs.
We want to be able to leverage GPUs in
halo2, via theec-gpucrate. This requires two changes:halo2needs to use GPU-aware MSM and FFT algorithms.This issue covers the second change. We should implement the
GpuEnginetrait from theec-gpucrate (behind agpufeature flag), and then theec-gpu-gencrate should be able to generate the necessary CUDA/OpenCL source code for MSMs and FFTs.