JuliaGPU/CUDA.jl

Task switch not allowed from inside staged nor pure functions

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#292 opened on Jul 14, 2020

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buggood first issue

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Description

As seen in https://github.com/JuliaGPU/KernelAbstractions.jl/issues/110#issuecomment-657911050, the @error call can cause a task-switch in a generated function

https://github.com/JuliaGPU/CUDA.jl/blob/ebc074262a5e88f9c596d21342972b49ff986ae7/src/device/cuda/output.jl#L149

Contributor guide

Research direction
Examine the referenced line in output.jl and the linked issue to understand how @error causes a task switch inside a staged/pure function. Then trace the code path to find a fix.
Tech stack
julia
Domain
backend
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Mostly clear
Prerequisites
Julia
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40