JuliaGPU/KernelAbstractions.jl

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Heterogeneous programming in Julia

Stars: 523
Forks: 88
Open beginner issues: 0
Indexed issues: 130
Avg merge: 1d 11h
Merged PRs (30d): 25

Dominant language: Julia
License: MIT
Last GitHub push: Sep 15, 2026
Latest indexed: Sep 18, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: help wanted good first issue

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130 open issues indexed

Roadmap to 1.0 Open

JuliaGPU/KernelAbstractions.jl#319 · 0 comments · 2 reactions · 0 assignees · Indexed Sep 18, 2026
Doc: what does CPU() do ? Open

JuliaGPU/KernelAbstractions.jl#324 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
StackOverflow for `get_device` on `ROCArray` Open

AMD bug

JuliaGPU/KernelAbstractions.jl#325 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Simple Block Reduce Fails when using `while` loops Open

JuliaGPU/KernelAbstractions.jl#330 · 8 comments · 1 reaction · 0 assignees · Indexed Sep 18, 2026
Missing docstring for `KernelAbstractions.partition` Open

documentation

JuliaGPU/KernelAbstractions.jl#333 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
@print not functional on AMDGPU Open

JuliaGPU/KernelAbstractions.jl#339 · 2 comments · 0 reactions · 1 assignee · Indexed Sep 18, 2026
Using RuntimeGeneratedFunctions gives a GPU compilation error Open

wontfix

JuliaGPU/KernelAbstractions.jl#347 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Const on 1.9 is failing on CI Open

AMD

JuliaGPU/KernelAbstractions.jl#350 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
`KernelAbstractions.@spawn backend ...` for easy Julia task based concurrency Open

JuliaGPU/KernelAbstractions.jl#358 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
StackOverflow Error on get_backend(cu(rand(3))) Open

JuliaGPU/KernelAbstractions.jl#366 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Error handling/reporting API Open

enhancement

JuliaGPU/KernelAbstractions.jl#383 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Offsetting kernel indices Open

JuliaGPU/KernelAbstractions.jl#384 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
How do I detect what GPU is installed on a host? Open

JuliaGPU/KernelAbstractions.jl#385 · 2 comments · 1 reaction · 0 assignees · Indexed Sep 18, 2026
Add API for device selection Open

enhancement good first issue help wanted

JuliaGPU/KernelAbstractions.jl#395 · 2 comments · 1 reaction · 0 assignees · Indexed Sep 18, 2026
Index type Open

breaking change

JuliaGPU/KernelAbstractions.jl#396 · 6 comments · 4 reactions · 0 assignees · Indexed Sep 18, 2026
Possible error due to KernelAbstractions while using VSCode debugger Open

JuliaGPU/KernelAbstractions.jl#405 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Enable Enzyme reverse mode rules for all backends Open

JuliaGPU/KernelAbstractions.jl#408 · 0 comments · 1 reaction · 1 assignee · Indexed Sep 18, 2026
Variable scoping issue leading to unexpected UndefVarError on CPU Open

JuliaGPU/KernelAbstractions.jl#413 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
exposing warp-level semantics Open

JuliaGPU/KernelAbstractions.jl#420 · 13 comments · 3 reactions · 0 assignees · Indexed Sep 18, 2026
Julia 1.11 private tests are failing Open

JuliaGPU/KernelAbstractions.jl#433 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 18, 2026
Looping over high-dimensional arrays Open

JuliaGPU/KernelAbstractions.jl#438 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Dynamic parallelism Open

JuliaGPU/KernelAbstractions.jl#442 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Allow `return` or `return nothing` in kernels Open

JuliaGPU/KernelAbstractions.jl#443 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
CPU `__thread_run` could loop over CartesianIndices? Open

JuliaGPU/KernelAbstractions.jl#448 · 7 comments · 1 reaction · 0 assignees · Indexed Sep 18, 2026
On CPU always use `NoDynamicCheck()`, just finish the last partial workgroup with `DynamicCheck()` Open

JuliaGPU/KernelAbstractions.jl#449 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Slow simple 2D copy kernel with Metal backend Open

JuliaGPU/KernelAbstractions.jl#464 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
BUG: @synchronize inside loop in CPU is not working Open

JuliaGPU/KernelAbstractions.jl#465 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Inconsistent results across platforms and datatypes on CPU backend Open

JuliaGPU/KernelAbstractions.jl#468 · 14 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Significant perf drop when using dynamic ranges in GPU kernel Open

JuliaGPU/KernelAbstractions.jl#470 · 9 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
@index cannot be used in the CPU if is not a direct rhs of an assignment Open

JuliaGPU/KernelAbstractions.jl#471 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 18, 2026
`KA.copyto!` between gpu arrays not tested. Open

JuliaGPU/KernelAbstractions.jl#474 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
simple batched dot kernel is ~1.7x slower with Const on Titan RTX Open

JuliaGPU/KernelAbstractions.jl#479 · 18 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
issue with using enzyme on kernel abstractions on CUDA backend Open

JuliaGPU/KernelAbstractions.jl#480 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
LLVM error when using Atomix.@atomic with FP16 Open

JuliaGPU/KernelAbstractions.jl#486 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
`Base.rand(::Backend)` Open

JuliaGPU/KernelAbstractions.jl#488 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Add Enzyme CI for other backends than CPU and CUDA Open

JuliaGPU/KernelAbstractions.jl#492 · 2 comments · 1 reaction · 1 assignee · Indexed Sep 18, 2026
Enzyme autodiff produces out-of-bounds error for some kernels. Open

JuliaGPU/KernelAbstractions.jl#493 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Atomic operations on complex numbers Open

JuliaGPU/KernelAbstractions.jl#497 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Error when using @Const macro with Julia --check-bounds=no startup option Open

JuliaGPU/KernelAbstractions.jl#498 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
How (if possible) can we get rid of SparseArrays and StaticArrays? Open

JuliaGPU/KernelAbstractions.jl#506 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
[FR] Add nthreads argument to CPU backend Open

JuliaGPU/KernelAbstractions.jl#507 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
How can we make KA fast on CPUs? Open

JuliaGPU/KernelAbstractions.jl#509 · 12 comments · 2 reactions · 0 assignees · Indexed Sep 18, 2026
amd gpu give different results when nested loop is used Open

JuliaGPU/KernelAbstractions.jl#517 · 18 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
1.11: reduce_private test generates gcframe under --check-bounds=yes Open

JuliaGPU/KernelAbstractions.jl#528 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 18, 2026
Qualified `KA.@index` macro not detected. Open

JuliaGPU/KernelAbstractions.jl#542 · 16 comments · 0 reactions · 1 assignee · Indexed Sep 18, 2026
localmem does not work for cpu backend? Open

JuliaGPU/KernelAbstractions.jl#544 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Kernel only gives proper result when adding `@print()` Open

JuliaGPU/KernelAbstractions.jl#547 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Accept static sizes as keyword arguments Open

enhancement good first issue

JuliaGPU/KernelAbstractions.jl#570 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Complex struct as input to a kernel Open

JuliaGPU/KernelAbstractions.jl#574 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 18, 2026
Enzyme integration likely causes divergent kernels Open

Enzyme

JuliaGPU/KernelAbstractions.jl#584 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 18, 2026

JuliaGPU/KernelAbstractions.jl

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