EnzymeAD/Reactant.jl

SpecialFunctions meta-issue

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#381 opened on Dec 15, 2024

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good first issue

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Description

Each of the following functions from the SpecialFunctions.jl package should have a method added here that handles TracedRNumber or TracedRArray inputs (depending on whether the expected input is a scalar or vector). This should be implemented using corresponding calls to stablehlo methods https://github.com/openxla/stablehlo/blob/c2fccec9f02daa2d709001ed5f37924d2526676f/stablehlo/dialect/StablehloOps.td#L938 or chlo methods https://github.com/openxla/stablehlo/blob/c2fccec9f02daa2d709001ed5f37924d2526676f/stablehlo/dialect/ChloOps.td . Ideally it should directly call operations within Ops.jl which wrap these stablehlo and chlo utilities. If one needs to call a stablehlo or chlo method which doesn't have an interface in Ops, it should be added to Ops, with a corresponding test, and then use that new Ops.jl method.

Contributor guide

Research direction
Examine existing Ops.jl methods for guidance, then implement one special function at a time (e.g., gamma) by calling the corresponding stablehlo or chlo operation, add tests, and repeat for the others.
Tech stack
julia
Domain
backend
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
3-5 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
JuliaReactant.jl internalsMLIR/XLA
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40