EnzymeAD/Reactant.jl

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Optimize Julia Functions With MLIR and XLA for High-Performance Execution on CPU, GPU, TPU and more.

Stars: 370
Forks: 74
Open beginner issues: 0
Indexed issues: 382
Avg merge: 18h 47m
Merged PRs (30d): 30

Dominant language: Julia
License: MIT
Last GitHub push: Sep 15, 2026
Latest indexed: Sep 15, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: good first issue help wanted

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382 open issues indexed

Meta Issue for High-Level Shardy Operations and Features Open

EnzymeAD/Reactant.jl#672 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Why do we have custom tracing instead of reusing Functors? Open

EnzymeAD/Reactant.jl#682 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Sharding & Multi-Device Execution Meta-Issue Open

EnzymeAD/Reactant.jl#693 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
`Base.getindex(attr::Attribute, i)` is zero-indexed Open

EnzymeAD/Reactant.jl#720 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Test for compile of compile (and compile of existing compiled thunk) Open

EnzymeAD/Reactant.jl#726 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Error in `get_ancestor_indices` when calling with type `CartesianIndex` Open

EnzymeAD/Reactant.jl#734 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Renaming macros Open

breaking

EnzymeAD/Reactant.jl#744 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
Re-indexing broken on GB test code Open

EnzymeAD/Reactant.jl#761 · 13 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
How to add checkpointing scheme for reactant Open

EnzymeAD/Reactant.jl#777 · 14 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Unexpected output type when multiplying reshaped ConcreteRArrays Open

EnzymeAD/Reactant.jl#778 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Error when trying to show an error Open

EnzymeAD/Reactant.jl#792 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Trouble constructing a type that requires type parameters Open

EnzymeAD/Reactant.jl#811 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Custom Kernel outputs zeros? Open

EnzymeAD/Reactant.jl#819 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Bug in `Reactant.MLIR.IR.Type`? Open

EnzymeAD/Reactant.jl#827 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Range operator fails with TracedRNumbers Open

EnzymeAD/Reactant.jl#837 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Conditionally run buildkite tests on specific file changes Open

EnzymeAD/Reactant.jl#847 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
x86_64 macOS jobs failing Open

EnzymeAD/Reactant.jl#867 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Missing mapreducedim of traced structures Open

EnzymeAD/Reactant.jl#905 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
failed to run pass manager on module: error: 'arith.cmpi' op operand #0 must be signless-integer-like, but got '!llvm.ptr' Open

EnzymeAD/Reactant.jl#914 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
add checks to validate sharding of outputs Open

EnzymeAD/Reactant.jl#928 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Add utility functions to `Distributed` Open

distributed IFRT

EnzymeAD/Reactant.jl#935 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Scalar indexing error in traced subarray of oceanaigans field Open

EnzymeAD/Reactant.jl#952 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Incorrect Codegen for Resharded Inputs Open

distributed

EnzymeAD/Reactant.jl#970 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Indexing an Array with Another Array Open

EnzymeAD/Reactant.jl#989 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Invalid Optimization under sharding annotations Open

bug

EnzymeAD/Reactant.jl#990 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
PJRT: Incorrect Codegen for Resharded Inputs Open

distributed

EnzymeAD/Reactant.jl#994 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Inefficient Resharding for NonSharded Inputs Open

distributed IFRT

EnzymeAD/Reactant.jl#1036 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
broadcasting with types fail Open

EnzymeAD/Reactant.jl#1064 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Traced sortperm override Open

EnzymeAD/Reactant.jl#1080 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Pass MLIR module with debug info into xla Open

EnzymeAD/Reactant.jl#1085 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Refactor MemoryKind to just be a string Open

EnzymeAD/Reactant.jl#1093 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Switch default runtime to IFRT Open

breaking IFRT

EnzymeAD/Reactant.jl#1096 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
HaloArrays Open

EnzymeAD/Reactant.jl#1112 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
`MethodError: no method matching widenconst(::Core.MethodInstance)` Open

EnzymeAD/Reactant.jl#1116 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Mark padding/slicing as inverse op for Non-Divisible Axes Open

EnzymeAD/Reactant.jl#1122 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Error compiling the time step for a complex Oceananigans.HydrostaticFreeSurfaceModel Open

EnzymeAD/Reactant.jl#1126 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Scalar indexing during reduction Open

EnzymeAD/Reactant.jl#1146 · 20 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Bad sharding comm Open

EnzymeAD/Reactant.jl#1166 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Bad sharding (all* operations) for non-divisible outputs Open

EnzymeAD/Reactant.jl#1176 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Adapt `multihost_job.py` and `multihost_runner.py` for Reactant Open

EnzymeAD/Reactant.jl#1185 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
How to save/load compiled function? Open

EnzymeAD/Reactant.jl#1209 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
VRAM usage is limited to 75% Open

EnzymeAD/Reactant.jl#1214 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Stackoverflow while precompiling Open

EnzymeAD/Reactant.jl#1224 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Error from `mapfirst!` into a SubArray of TracedArray Open

EnzymeAD/Reactant.jl#1229 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
PJRT Plugins for other accelerators Open

EnzymeAD/Reactant.jl#1256 · 15 comments · 2 reactions · 0 assignees · Indexed Sep 15, 2026
Hit LARGE_CONSTANT_THRESHOLD Open

EnzymeAD/Reactant.jl#1266 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
LoadError: "failed to run pass manager on module" on Oceananigans script with CATKE Open

EnzymeAD/Reactant.jl#1293 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Raising failure of `spmv!` kernel Open

EnzymeAD/Reactant.jl#1296 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Optimization: traced if with unused result should be written to have nothing as the yielded statements Open

EnzymeAD/Reactant.jl#1299 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
0.3 release changes Open

EnzymeAD/Reactant.jl#1301 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026

EnzymeAD/Reactant.jl

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