- Replace bf16 pre-scale Q loading with direct 32-bit aligned bf16x2 reads - Apply scale in float32 after Q@K^T, before online softmax - Reduces causal max error from 2^-6 to 2^-8 with zero perf cost
- Replace bf16 pre-scale Q loading with direct 32-bit aligned bf16x2 reads - Apply scale in float32 after Q@K^T, before online softmax - Reduces causal max error from 2^-6 to 2^-8 with zero perf cost