Tracking issue for plan chain rule support
Nobody has claimed this yet.
Assessment
- Difficulty
- 5/5
- Estimated time
- Over a week
- Newbie friendliness
- 20/100
Research direction
Start by reviewing the unchecked items in issue #94 and the linked FFTW, Zygote, and downstream-package pull requests. The work is complete when the listed downstream adjoint traits and tests, R2R adjoint support, and DCT chain rules are resolved, along with #112.
Written by the indexing model from the issue text.
Description
Tracks progress towards supporting plan chain rules. This requires supporting adjoints of plans, and that in turn requires that we create a package for testing FFT plans to give downstream implementations a way of easily testing adjoint functionality.
- Implement adjoints of plans (#67)
- Create a TestUtils submodule and add adjoint plan testing (#78)
- QOL improvements to adjoint styles (https://github.com/JuliaMath/AbstractFFTs.jl/pull/109)
- Implement adjoint traits in downstream packages (FFTW, CUDA, AMD, PencilFFTs) and test using TestUtils (https://github.com/JuliaMath/FFTW.jl/pull/249)
- drop Zygote FFT plan rules (https://github.com/FluxML/Zygote.jl/pull/1437)
Additionally, for full support of FFTW's additional transforms
- [] Adjoint support for R2R plans
- [] DCT chain rules (https://github.com/JuliaMath/FFTW.jl/pull/273)
And #112 needs resolution at some point.
- Dominant language
- Julia
- Stars
- 135
- Forks
- 40
- PR merge metrics
- No merged PRs in 30d
Getting set up
This project ships no dev container, Dockerfile or contributing guide, so setting up is up to you: start from its README, and see our first-contribution guide for the general steps.
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
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