DIM-576 ATTENTION-KERNEL BODYx3
A 12-layer dim-576 model body plus the custom attention-kernel benchmark shape used against FA3.
MODEL BODYnum_layers=12 · model_dim=576 · embedding_dim=576 · matrix_bits=5 · xsa_last_n=11 · parallel_residual_start=8 · model_params=48551136
KERNEL SHAPEbatch=2 · seq_len=2048 · q_heads=8 · kv_heads=4 · head_dim=64 · custom attention path compared directly to FA3
PROMOTED KERNELDQ=128,64,8,5 · DKDV=128,64,8,3 · DKDV_MAXNREG=256 · QMR=1984 for 2x primary · QMR=1664 single-GPU anchor

