One-way: TMEM → registers (normalize) → SMEM → GMEM Based on CUTLASS FMHA reference's correction_epilog pattern. Eliminates TMEM round-trip error for O normalization. O rescale (kt>0) still uses old atoms (separate fix).
One-way: TMEM → registers (normalize) → SMEM → GMEM Based on CUTLASS FMHA reference's correction_epilog pattern. Eliminates TMEM round-trip error for O normalization. O rescale (kt>0) still uses old atoms (separate fix).