KI Sub-groups#668
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Codecov Report❌ Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## main #668 +/- ##
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+ Coverage 62.51% 62.73% +0.22%
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Files 23 23
Lines 1926 1967 +41
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+ Hits 1204 1234 +30
- Misses 722 733 +11 ☔ View full report in Codecov by Harness. 🚀 New features to boost your workflow:
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FWIW, I fixed that, and pocl_jll should include the patch merged upstream to make |
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I never got around to removing setting the subgroup size by default so no changes necessary. Also, I bumped the required pocl_standalone_jll to 7.1.3, could/should we yank 7.1.3+0 to guarantee no segfaults from libpocl mismatches? |
shreyas-omkar
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Jun 30, 2026
…overrides Adds KI.sub_group_ballot(pred::Bool) → UInt32: returns a bitmask with bit (lane-1) set for every lane where pred is true. CPU fallback returns UInt32(pred). SPIR-V/OpenCL has no ballot intrinsic so no POCL override is added. Also adds ext/CUDAExt.jl, the KA extension for CUDA, providing @device_override implementations of all sub-group intrinsics from JuliaGPU#668: - sub_group_size(::CUDABackend), shfl_down_types(::CUDABackend) [host-side] - get_sub_group_{size,max_size,local_id,id,num}() [device-side] - sub_group_barrier(), shfl_down(), sub_group_ballot() [device-side] Builds on top of JuliaGPU#668 (KI Sub-groups). Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-Authored-By: Anton Smirnov <tonysmn97@gmail.com>
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Includes #682