JuliaDiff / JuliaDiff/ChainRulesCore.jl
Support chunked frule
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- Dominant language
- Julia
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- 267
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Description
from #90 it seems that @YingboMa wants frule to be able to be called on a Vector of sensitivies for the same primal value,
and get a of sensitivities vector back,
but without broadcasting ? (presumably because that would also recompute the forwad primal)
I don't understand properly.
So this thread is get @YingboMa @shashi or @ChrisRackauckas to explain that.
This might need a redesign of frrule again similar to solving #74.
Maybe we went too far there, since broadcasting the pushforward would presumably solve that case.
Contributor guide
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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.
Research direction
Start by reading the context in #90 and the redesign discussion in #74, then review the current frule and frrule interfaces. Clarify whether a Vector of sensitivities should produce a sensitivities vector without broadcasting or recomputing the primal, and document the intended behavior before implementation.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- julia
- Domain
- tooling
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 20/100