Tune AMD GCN Vulkan subgroup sizing#15

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rasbid wants to merge 1 commit intomasterfrom

codex/extend-gpu_pipeline_configs-for-amd_gcn

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rasbid commented Oct 13, 2025

Summary

add an AMD GCN pipeline configuration that pins attention-critical kernels to subgroup size 64
rely on get_subgroup_size defaults so GCN devices request the tuned subgroup size when building pipelines

Testing

not run (requires AMD GCN hardware)

https://chatgpt.com/codex/tasks/task_e_68ebeecda304833094899d99fdffb7af


          Tune AMD GCN Vulkan subgroup sizing

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