Techdev.toOct 24 08:34 AM0 views

A Small Attention Fallback Fix Cut Peak Mask-Pass VRAM by 87%

A merged fix in Xiaomi-Lens-0, and why fallback paths deserve their own benchmarks. When an optional acceleration library is unavailable, what happens next? In Xiaomi-Lens-0, the pixel mask decoder fell back from flash-attn to nn.MultiheadAttention . In the configuration I tested, that fallback made large images consume enough GPU memory to fail. An efficient alternative was already implemented…

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