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fix(cuda): fence shared loads before TMA stage reuse - #144
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Co-authored-by: Codex (GPT-6) <codex@openai.com> Signed-off-by: jinzhen.ljz <jinzhen.ljz@antgroup.com>
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Fence outstanding shared-memory loads before early TMA stage release in multi-fragment MMA kernels to fix intermittent SM121 BF16/UINT2 errors while preserving compute/load overlap.