The merged Mamba2 -> CfC -> heads design from the 2026-05-16 spec
amendment supersedes the CfC-alone path. Removing the old CfC-only
PerceptionTrainer and renaming the stacked Mamba2CfcTrainer to
PerceptionTrainer (one trainer, clean naming).
Deletions:
- src/trainer/perception.rs (the OLD CfC-only trainer)
- tests/perception_overfit.rs (CfC-only smoke)
- tests/perception_debug_dump.rs (CfC-only trajectory print)
- tests/stacked_overfit.rs (replaced by perception_overfit pointing
at the renamed module)
Renames:
- src/trainer/stacked.rs -> src/trainer/perception.rs
- Mamba2CfcTrainer -> PerceptionTrainer
- Mamba2CfcTrainerConfig -> PerceptionTrainerConfig
- tests/stacked_overfit.rs content -> tests/perception_overfit.rs
CLI rewrite:
examples/alpha_train.rs now drives the stacked PerceptionTrainer.
Per-step inputs are sequences (Vec<Mbp10RawInput>) of length
seq_len; labels come from the LAST position of the window
(per-horizon). Flags: --seq-len, --mamba2-state-dim, --lr-cfc,
--lr-mamba2 (no more --n-hid since hidden_dim is fixed at 128 to
match Mamba2 and CfC by design).
Test status:
- 64 GPU tests pass on local sm_86 (31 lib unit + 33 integration)
- synthetic-overfit (rebranded perception_overfit): 250 steps,
initial=0.5951 -> final=0.1917 (68% drop, well above 40% gate)
- All bit-equiv / finite-diff / invariant tests still PASS
- One ignored test: the gate_artifact integration (waiting for
cluster-trained summary inputs)
The cluster gate (Task 18) now compares stacked-trained AUC vs a
Mamba2-baseline AUC (TBD: stacked vs a simpler "Mamba2 only" config
or an external reference baseline).
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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