JuliaGPU/OpenCL.jl

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• PoCL: math on 256-bit vectors returns garbage with the non-AVX x86 kernel libraries

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  Difficulty 4/5 3-5 days Newbie friendliness 28/100

  JuliaGPU/OpenCL.jl#552 · Opened Oct 8, 2026

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• Launching a kernel with a new signature compiles a lot of signature-independent host code

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

  JuliaGPU/OpenCL.jl#550 · 1 comment · Opened Oct 8, 2026

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• synchronize waits for other queues because of the shared exception mailbox

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

  JuliaGPU/OpenCL.jl#549 · Opened Oct 8, 2026

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• PoCL drops the stores of a work-group when a value lives across a barrier inside a branch

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  bug upstream

  Difficulty 4/5 3-5 days Newbie friendliness 43/100

  JuliaGPU/OpenCL.jl#548 · Opened Oct 7, 2026

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• No test catches missing synchronization between work-groups

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  Difficulty 4/5 3-5 days Newbie friendliness 48/100

  JuliaGPU/OpenCL.jl#547 · Opened Oct 7, 2026

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• Float atomics tests force native addition on devices without cl_ext_float_atomics

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  Difficulty 2/5 1-3 hours Newbie friendliness 75/100

  JuliaGPU/OpenCL.jl#546 · Opened Oct 7, 2026

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• PoCL: pocl_jll links kernels against a build-time SLEEF path

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  Difficulty 4/5 3-5 days Newbie friendliness 48/100

  JuliaGPU/OpenCL.jl#540 · Opened Oct 6, 2026

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• PoCL: clEnqueueWaitForEvents is not implemented

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  Difficulty 3/5 1-2 days Newbie friendliness 66/100

  JuliaGPU/OpenCL.jl#538 · Opened Oct 6, 2026

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• PoCL: binaries can't be queried before the program is built

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  Difficulty 4/5 3-5 days Newbie friendliness 48/100

  JuliaGPU/OpenCL.jl#537 · Opened Oct 6, 2026

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• PoCL: clEnqueueSVMMemFill crashes on host memory

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  Difficulty 4/5 3-5 days Newbie friendliness 46/100

  JuliaGPU/OpenCL.jl#536 · Opened Oct 6, 2026

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• Kernel launch failures can go unreported

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  Difficulty 4/5 3-5 days Newbie friendliness 48/100

  JuliaGPU/OpenCL.jl#535 · Opened Oct 6, 2026

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• Cache the memory back-end per device instead of per task

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  Difficulty 4/5 3-5 days Newbie friendliness 55/100

  JuliaGPU/OpenCL.jl#524 · Opened Oct 2, 2026

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• Segfault in the host JIT when launching a tuple of kernel functions with @opencl

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  Difficulty 4/5 3-5 days Newbie friendliness 38/100

  JuliaGPU/OpenCL.jl#522 · Opened Sep 30, 2026

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• Intel's CPU runtime skips the partial last work-group along x in N-d launches

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  Difficulty 4/5 3-5 days Newbie friendliness 48/100

  JuliaGPU/OpenCL.jl#521 · 1 comment · Opened Sep 30, 2026

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• Indexing a StepRange with an Int32 fails to compile to SPIR-V (i128 from the bounds check)

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

  JuliaGPU/OpenCL.jl#520 · Opened Sep 30, 2026

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• Improve barrier tests

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  Difficulty 3/5 1-2 days Newbie friendliness 30/100

  JuliaGPU/OpenCL.jl#419 · Opened Feb 18, 2026

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• [CI] Figure out why Windows is missing some vectorization symbols.

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

  JuliaGPU/OpenCL.jl#415 · Opened Jan 31, 2026

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• Issue with nested device arrays

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

  JuliaGPU/OpenCL.jl#411 · 2 comments · Opened Jan 9, 2026

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• Support static shared memory

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

  JuliaGPU/OpenCL.jl#389 · Opened Oct 15, 2025

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• `mapreducedim!` is super slow

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  performance

  Difficulty 4/5 3-5 days Newbie friendliness 38/100

  JuliaGPU/OpenCL.jl#352 · 15 comments · Opened Jul 31, 2025

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• Behaviour discrepancy between the REPL and the testing environment round 2: second reduction boogaloo

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

  JuliaGPU/OpenCL.jl#350 · 1 comment · Opened Jul 30, 2025

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• Hardware-accelerated linear KA index is wrong

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

  JuliaGPU/OpenCL.jl#346 · 1 comment · Opened Jul 25, 2025

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• Consider wrapping beta extensions

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  OpenCL

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

  JuliaGPU/OpenCL.jl#334 · 2 comments · Opened Jun 20, 2025

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• Targeting Vulkan through Rusticl/Zink

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  Drivers

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

  JuliaGPU/OpenCL.jl#330 · 3 comments · Opened Jun 19, 2025

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• Intel: Uniformscaling compilation error

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  Drivers

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

  JuliaGPU/OpenCL.jl#316 · Opened Jun 10, 2025

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• Accessing a matrix via boolean mask doesn't work

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  Julia upstream

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

  JuliaGPU/OpenCL.jl#301 · 1 comment · Opened Apr 24, 2025

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• Support command buffers

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  OpenCL

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

  JuliaGPU/OpenCL.jl#282 · Opened Jan 24, 2025

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• Build PoCL with Vulkan and CUDA as backends

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  Drivers

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

  JuliaGPU/OpenCL.jl#278 · 3 comments · Opened Jan 20, 2025

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• Try out PoCL-R

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

  JuliaGPU/OpenCL.jl#258 · 1 comment · 2 reactions · Opened Oct 16, 2024

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• Intel: Uninitialized SVM memory is not supported

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

  JuliaGPU/OpenCL.jl#252 · 1 comment · Opened Oct 8, 2024

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• PoCL: SPIR-V vector math fails to link on Windows

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

  JuliaGPU/OpenCL.jl#534 · Opened Oct 6, 2026

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