1bb878b6a7
Per user feedback "no phase naming, give proper naming to files and functions": renames src/trainer/phase_a.rs -> perception.rs, src/data/phase_a_loader.rs -> data/loader.rs, and the corresponding types (PhaseATrainer -> PerceptionTrainer, PhaseALoader -> MultiHorizonLoader, PhaseAConfig -> MultiHorizonLoaderConfig, PhaseASequence -> LabeledSequence). Test files renamed in lock-step. Adds PerceptionTrainer.step() — full end-to-end forward + heads backward + cfc_step_backward (K=1 truncated BPTT) + 5 AdamW param groups (W_in, W_rec, b, heads_w, heads_b). reset_hidden_state() zeros h_old between independent samples. KNOWN ISSUE — synthetic-overfit smoke (tests/perception_overfit.rs) does NOT yet show loss shrinkage on the 200-step budget: initial_avg=0.6914, final_avg=0.6955 (random-baseline ln(2)=0.693) The kernels are individually correct (heads_bwd + cfc_bwd finite-diff at 5% rel, AdamW invariant ‖θ‖ 40->1 in 200 steps). The end-to-end chain doesn't converge — most likely due to half the CfC cells having near-1 decay from log-uniform tau init on a zeroed hidden state, so only the fast cells carry signal. Fix candidates for next session: - tau init narrower / per-task tuned for the smoke - longer step budget (1000+) with adjusted LR - validate end-to-end with explicit print of grad/probs across iters Task 13 is NOT complete (the gate criterion isn't met). Subsequent work continues from here. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
67 lines
2.2 KiB
Rust
67 lines
2.2 KiB
Rust
//! Phase A loader smoke tests.
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//!
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//! Real-data path is `--ignored`; runs only with FOXHUNT_TEST_DATA set.
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use ml_alpha::data::loader::{MultiHorizonLoaderConfig, MultiHorizonLoader};
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use std::path::PathBuf;
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fn cfg_from_env() -> Option<MultiHorizonLoaderConfig> {
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let root = std::env::var("FOXHUNT_TEST_DATA").ok()?;
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let mbp10 = PathBuf::from(format!("{root}/mbp10"));
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let predec = PathBuf::from(format!("{root}/predecoded"));
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if !mbp10.exists() {
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return None;
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}
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Some(MultiHorizonLoaderConfig {
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mbp10_root: mbp10,
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predecoded_dir: predec,
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seq_len: 64,
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horizons: [30, 100, 300, 1000, 6000],
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n_max_sequences: 100,
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seed: 0xA1A2_A3A4,
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})
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}
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#[test]
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#[ignore]
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fn loader_yields_seq_with_valid_labels() {
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let Some(cfg) = cfg_from_env() else {
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eprintln!("skipping: FOXHUNT_TEST_DATA not set or mbp10 dir missing");
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return;
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};
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let mut loader = MultiHorizonLoader::new(&cfg).expect("loader init");
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assert!(loader.n_files() > 0, "no DBN files found in mbp10 root");
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let mut count = 0;
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while let Some(seq) = loader.next_sequence().expect("next") {
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assert_eq!(seq.snapshots.len(), cfg.seq_len);
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for h in 0..5 {
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assert_eq!(seq.labels[h].len(), cfg.seq_len);
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for &v in &seq.labels[h] {
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assert!(v.is_nan() || v == 0.0 || v == 1.0, "label not binary: {v}");
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}
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}
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let any_valid = seq.labels.iter().any(|l| l.iter().any(|v| !v.is_nan()));
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assert!(any_valid, "expected at least one non-NaN label in a sequence");
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count += 1;
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if count >= 5 {
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break;
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}
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}
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assert!(count >= 5, "expected at least 5 sequences, got {count}");
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}
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#[test]
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fn loader_errors_on_missing_root() {
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let cfg = MultiHorizonLoaderConfig {
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mbp10_root: PathBuf::from("/tmp/does_not_exist_foxhunt_test"),
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predecoded_dir: PathBuf::from("/tmp/does_not_exist_foxhunt_test"),
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seq_len: 64,
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horizons: [30, 100, 300, 1000, 6000],
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n_max_sequences: 10,
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seed: 0,
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};
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let res = MultiHorizonLoader::new(&cfg);
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assert!(res.is_err(), "expected error for missing mbp10 root");
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}
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