JuliaParallel/Dagger.jl

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A framework for out-of-core and parallel execution

Stars: 723
Forks: 90
Open beginner issues: 0
Indexed issues: 85
Avg merge: 1d 37m
Merged PRs (30d): 9

Dominant language: Julia
License: No license data
Last GitHub push: Sep 17, 2026
Latest indexed: Sep 18, 2026
Contributing guide: No contributing guide
Code of conduct: Code of conduct
Beginner labels: help wanted

Beginner friendly Everything

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85 open issues indexed

Using shards inside spawn_datadeps leads to generic memory error Open

bug datadeps

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaParallel/Dagger.jl#665 · 3 comments · Opened Nov 24, 2025
nested loop example revisited - plain Threads look as fast as Dagger Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

JuliaParallel/Dagger.jl#661 · 1 comment · Opened Nov 2, 2025
DArray: Memory cannot GC when the variables are reassigned, causing `Out of Memory` error or halting problem Open

memory usage

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaParallel/Dagger.jl#649 · 6 comments · Opened Aug 10, 2025
Game of Life example is slower with more processes than just one Open

performance stencils

JuliaParallel/Dagger.jl#642 · 3 comments · 1 assignee · Opened Aug 5, 2025
Logging is slow Open

logging performance

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaParallel/Dagger.jl#621 · 4 comments · Opened Jun 27, 2025
Wait does not work for MPI chunks Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaParallel/Dagger.jl#591 · Opened Mar 24, 2025
Sponsor link is broken Open

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

JuliaParallel/Dagger.jl#588 · 1 comment · Opened Feb 20, 2025
Matrix Transposition indexing in DArray in CUDA Open

array interface bug

JuliaParallel/Dagger.jl#543 · 9 comments · 1 assignee · Opened Jul 9, 2024
Spawn macro does not compose with logging macros Open

eager api speculative

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaParallel/Dagger.jl#514 · 1 comment · Opened May 15, 2024
Using Dagger in an epidemiological analysis: visualising an implied DAG and other examples of usage Open

logging question visualization

Difficulty 5/5 Over a week Newbie friendliness 25/100

JuliaParallel/Dagger.jl#512 · 10 comments · Opened May 14, 2024
Distributed.jl bug: ConcurrencyViolationError("lock must be held") Open

upstream

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaParallel/Dagger.jl#478 · 3 comments · Opened Mar 5, 2024
Fix `mapchunks` and write Test for it Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

JuliaParallel/Dagger.jl#476 · 1 comment · Opened Mar 5, 2024
Mutation Support Open

data movement eager api enhancement scheduler

Difficulty 5/5 Over a week Newbie friendliness 20/100

JuliaParallel/Dagger.jl#466 · 1 reaction · Opened Jan 23, 2024
Add automated benchmarks, stress testing, and other analyses Open

benchmarking

Difficulty 5/5 Over a week Newbie friendliness 20/100

JuliaParallel/Dagger.jl#457 · Opened Nov 20, 2023
Add documentation on how to spawn workers over SSH Open

documentation question

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

JuliaParallel/Dagger.jl#444 · 1 comment · Opened Oct 25, 2023
Errors while running benchmarks Open

bug upstream

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaParallel/Dagger.jl#440 · 3 comments · Opened Oct 12, 2023
Various errors working with DTables.jl Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 25/100

JuliaParallel/Dagger.jl#438 · 7 comments · Opened Oct 2, 2023
`permutedims` function not supported for `Dagger.DArray` Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

JuliaParallel/Dagger.jl#395 · Opened May 19, 2023
Implement in-thunk `wait()` with task continuations Open

eager api scheduler speculative

Difficulty 5/5 Over a week Newbie friendliness 25/100

JuliaParallel/Dagger.jl#391 · Opened Apr 15, 2023
Add Support for Internal Task Priorities Open

Difficulty 5/5 Over a week Newbie friendliness 28/100

JuliaParallel/Dagger.jl#389 · Opened Mar 20, 2023
Implement Backfilling in Dagger for Improved Functionality Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

JuliaParallel/Dagger.jl#388 · Opened Mar 20, 2023
TimespanLogging: Use ProbeBase to execute probes Open

logging

Difficulty 5/5 Over a week Newbie friendliness 25/100

JuliaParallel/Dagger.jl#386 · Opened Mar 16, 2023
Add option to export logs to graphviz for eager API Open

logging ui

Difficulty 5/5 Over a week Newbie friendliness 20/100

JuliaParallel/Dagger.jl#385 · 1 reaction · Opened Mar 16, 2023
On scheduler exit, throw error to all waiting wait and fetch calls Open

eager api enhancement error handling scheduler

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaParallel/Dagger.jl#384 · 1 comment · Opened Mar 15, 2023
TimespanLogging: Provide log serialization helper Open

logging

Difficulty 5/5 Over a week Newbie friendliness 25/100

JuliaParallel/Dagger.jl#381 · 2 comments · Opened Mar 3, 2023
TimespanLogging: Keep per-thread log stores Open

logging

Difficulty 5/5 Over a week Newbie friendliness 30/100

JuliaParallel/Dagger.jl#380 · Opened Mar 3, 2023
TimespanLogging: Remove worker ID nesting Open

logging

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

JuliaParallel/Dagger.jl#379 · Opened Mar 3, 2023
TimespanLogging: Namespace by module Open

logging

Difficulty 5/5 Over a week Newbie friendliness 35/100

JuliaParallel/Dagger.jl#378 · Opened Mar 3, 2023
Add more built-in thread-based processor types Open

enhancement processors

Difficulty 5/5 Over a week Newbie friendliness 35/100

JuliaParallel/Dagger.jl#375 · Opened Feb 26, 2023
graph with streaming events Open

Difficulty 2/5 1-3 hours Newbie friendliness 25/100

JuliaParallel/Dagger.jl#369 · 1 comment · Opened Dec 30, 2022
Show progress in DaggerWebDash Open

enhancement webdash

Difficulty 5/5 Over a week Newbie friendliness 25/100

JuliaParallel/Dagger.jl#362 · 3 comments · Opened Nov 6, 2022
Improve signature time estimation on cold start Open

bug performance scheduler

Difficulty 5/5 Over a week Newbie friendliness 25/100

JuliaParallel/Dagger.jl#360 · Opened Oct 4, 2022
`@spawn` has confusing move semantics Open

documentation eager api enhancement help wanted

JuliaParallel/Dagger.jl#357 · 8 comments · 1 assignee · Opened Sep 9, 2022
Propagate RNG state to tasks Open

scheduler

Difficulty 5/5 Over a week Newbie friendliness 25/100

JuliaParallel/Dagger.jl#340 · Opened Apr 8, 2022
Implement user-defined error handler mechanism Open

error handling fault handling scheduler

Difficulty 5/5 Over a week Newbie friendliness 25/100

JuliaParallel/Dagger.jl#339 · Opened Apr 8, 2022
Add FileTrees reverse CI Open

ci

Difficulty 4/5 3-5 days Newbie friendliness 30/100

JuliaParallel/Dagger.jl#331 · 3 comments · Opened Feb 19, 2022
Task cost estimation: Treat non-Chunk inputs as residing on scheduler Open

data movement performance scheduler

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaParallel/Dagger.jl#330 · Opened Feb 16, 2022
[Distributed] Mixed env libuv error Open

bug fault handling scheduler upstream

Difficulty 4/5 3-5 days Newbie friendliness 25/100

JuliaParallel/Dagger.jl#324 · 1 comment · Opened Dec 30, 2021
Thunk retry options and other supervisors Open

eager api enhancement speculative

Difficulty 5/5 Over a week Newbie friendliness 25/100

JuliaParallel/Dagger.jl#323 · 1 comment · Opened Dec 22, 2021
Docs for PackageCompiler usage Open

documentation needs docs

Difficulty 2/5 1-3 hours Newbie friendliness 42/100

JuliaParallel/Dagger.jl#322 · Opened Dec 21, 2021
Method ambiguity for simple Thunks Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

JuliaParallel/Dagger.jl#314 · 1 comment · Opened Dec 7, 2021
Multithread the scheduler Open

enhancement performance scheduler

Difficulty 5/5 Over a week Newbie friendliness 25/100

JuliaParallel/Dagger.jl#312 · Opened Dec 5, 2021
Add waitfirst/fetchfirst operator Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 30/100

JuliaParallel/Dagger.jl#309 · 6 comments · Opened Nov 28, 2021
No way to set scheduler options for eager API Open

bug eager api scheduler

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaParallel/Dagger.jl#308 · 1 comment · Opened Nov 18, 2021
Add standalone events for scheduler decision logging Open

logging scheduler

Difficulty 4/5 3-5 days Newbie friendliness 42/100

JuliaParallel/Dagger.jl#293 · Opened Oct 17, 2021
Scheduler seems too eager on pushing jobs to workers Open

bug scheduler

Difficulty 5/5 Over a week Newbie friendliness 25/100

JuliaParallel/Dagger.jl#286 · 13 comments · Opened Oct 7, 2021
Slowdown in scheduler after extended eager api usage Open

bug eager api performance

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaParallel/Dagger.jl#283 · 2 comments · Opened Sep 16, 2021
Infer argument processor and scope Open

enhancement processors

Difficulty 5/5 Over a week Newbie friendliness 25/100

JuliaParallel/Dagger.jl#280 · Opened Sep 9, 2021
using `mean` with distributed Dagger arrays Open

array interface bug

Difficulty 3/5 1-2 days Newbie friendliness 45/100

JuliaParallel/Dagger.jl#279 · 1 comment · Opened Sep 8, 2021
Lazily evict Chunks with no dependents Open

bug data movement eager api scheduler

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaParallel/Dagger.jl#276 · Opened Sep 1, 2021

JuliaParallel/Dagger.jl

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