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[cuda::ptx] cta_group error workaround#8297

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davebayer merged 1 commit intoNVIDIA:mainfrom
fbusato:cuda-ptx-split-cta-group
Apr 7, 2026
Merged

[cuda::ptx] cta_group error workaround#8297
davebayer merged 1 commit intoNVIDIA:mainfrom
fbusato:cuda-ptx-split-cta-group

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@fbusato fbusato commented Apr 6, 2026

Description

Recent versions of the CUDA toolkit raise an error when compiling ptx instructions with both cta_group::1 and cta_group::2 in the same kernel. Currently, the test code for cuda::ptx includes both cta group in a single kernel. The PR provides a temporary workaround until we don't fully generate a new version of the instructions.

The workaround consists in splitting the kernels containing the two instructions. The code has been only moved, not modified.

@fbusato fbusato self-assigned this Apr 6, 2026
@fbusato fbusato requested a review from a team as a code owner April 6, 2026 21:15
@fbusato fbusato added the libcu++ For all items related to libcu++ label Apr 6, 2026
@fbusato fbusato added this to CCCL Apr 6, 2026
@fbusato fbusato requested a review from pciolkosz April 6, 2026 21:15
@github-project-automation github-project-automation bot moved this to Todo in CCCL Apr 6, 2026
@cccl-authenticator-app cccl-authenticator-app bot moved this from Todo to In Review in CCCL Apr 6, 2026
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github-actions bot commented Apr 6, 2026

🥳 CI Workflow Results

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@davebayer davebayer merged commit b7e1c17 into NVIDIA:main Apr 7, 2026
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gonidelis pushed a commit to gonidelis/cccl that referenced this pull request Apr 8, 2026
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