Initial K3 snapshot: 0.5B KDA/MLA/MoE train path

Standalone tree split from LLMRL/projects/kda. Includes Triton dt_bias backward fix, train_k3 --preset 0.5b, SFT, Docker runtime, and tests.
2026-08-25 14:43:17 +08:00
commit 584f7e9e73
140 changed files with 21592 additions and 0 deletions
@@ -0,0 +1,5 @@
+"""Vendored FLA WY recompute used by the chunk KDA backward."""
+
+from kda._fla.ops.kda.wy_fast import recompute_w_u_fwd
+
+__all__ = ["recompute_w_u_fwd"]