Commit Graph

2557 Commits

Author SHA1 Message Date
jgrusewski
84de278dfe feat(sp14): B.2 — register 11 SP14 ISV slots for fold-boundary reset
Each EGF pearl EMA / state slot resets to its Pearl-A sentinel at fold
boundary, mirroring sp13_aux_dir_acc_short_ema / long_ema entries.
Atomic refactor (feedback_no_partial_refactor): both halves land
together — registry entry + reset_named_state dispatch arm.

Reset slots (11 total, sentinel in parens):
  - Q_DISAGREEMENT_SHORT/LONG_EMA (slots 383, 384) → 0.5
  - K_AUX_ADAPTIVE (385) → K_BASE_AUX = 20.0
  - K_Q_ADAPTIVE (386) → K_BASE_Q = 15.0
  - BETA_RATE_LIMITER_ADAPTIVE (387) → BETA_BASE = 0.5
  - AUX_DIR_ACC_VARIANCE_EMA, Q_DISAGREEMENT_VARIANCE_EMA,
    ALPHA_GRAD_RAW_VARIANCE_EMA (388, 389, 390) → 0.0
    (initial k = k_base, β = β_base via ISV-driven controllers)
  - GATE1_OPEN_STATE (391) → 0.0 (closed)
  - ALPHA_GRAD_SMOOTHED (393) → 0.0
  - AUX_DIR_ACC_POST_OPEN_MIN (394) → 1.0 (no min observed)

ALPHA_GRAD_RAW (slot 392, recomputed every step from variance EMAs)
and GRADIENT_HACK_LOCKOUT_REMAINING (slot 395, decays at epoch
boundary) are NOT in the fold-reset registry; both naturally
re-initialise without explicit reset.

Also corrects the isv-slots.md SP14 table: slots 392 and 395 were
incorrectly marked FoldReset in the B.1 entry; corrected to reflect
their actual reset semantics (NOT reset / epoch-boundary decay).

Producer + consumer wiring lands in subsequent tasks (B.3-B.12);
this commit is additive infrastructure only — no behavior change.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 18:51:00 +02:00
jgrusewski
d63cb7992e feat(sp14): B.1 — sp14_isv_slots.rs with 13 new ISV slot constants
Allocates ISV slots [383..396) for the Aux→Q Wire + Earned Gradient
Flow pearl (Layer B of SP14). Mirrors sp13_isv_slots.rs pattern.
The plan originally documented [381..394), but Phase 0 verification
found SP13 closeout added HOLD_RATE_TARGET_INDEX=381 and
HOLD_RATE_OBSERVED_EMA_INDEX=382 after the plan was written, so the
range shifts by +2.

Slots fall into 4 functional groups:
- Q-disagreement EMAs (short, long; K=4↔K=2 mapping with Hold/Flat masked)
- Adaptive controllers (k_aux, k_q, β; variance-driven)
- Welford variance EMAs (3, one per adaptive scalar)
- Schmitt state + α_grad outputs + circuit breaker

Plus 14 structural constants for numerical-stability anchors:
K_BASE_*, K_MIN, VARIANCE_REF_*, BETA_BASE, BETA_MAX, SCHMITT_BAND,
WARMUP_STEPS_FALLBACK, LOCKOUT_*, Q_DISAGREEMENT_BASELINE.

Per feedback_isv_for_adaptive_bounds: adaptive bounds (k_*, β,
post_open_min, lockout) live in ISV; numerical anchors live as
structural constants. Per pearl_first_observation_bootstrap: all
EMAs reset to sentinels and Pearl-A bootstraps on first observation.

Producer + consumer wiring lands in subsequent tasks (B.2-B.12);
this commit is additive infrastructure only — no behavior change.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 18:45:49 +02:00
jgrusewski
f75786fc5a fix(sp14): A.1 — C51 inv_a_std floor lift (1e-6 → 1e-3)
c51_grad_kernel.cu line 275: lift floor from 1e-6 to 1e-3 in
\`inv_a_std = 1.0f / (a_std + 1e-3f)\`, capping the magnitude-branch
gradient amplifier at 1000 instead of ~1e6 in the degenerate case.

Why: Smoke A produced 1109 GRAD_CLIP_OUTLIER events with C51 grad
reaching 9.5e6 — the SP7 budget controller saturated at the EPS_DIV
floor instead of rebalancing proportionally. Phase-0 verification
against the actual kernel found the amplifier is NOT the spec's
claimed −log(p)/p divide (which does not exist; the kernel uses
the CE-stable expf(lp) - proj form at line 81). The actual
amplifier is inv_a_std = 1/(a_std + 1e-6) at line 275, gated by
\`if (d == 1) grad_val *= inv_a_std\` at line 282. When magnitude
advantage logits collapse near-uniform (Smoke A: var_q=9e-10),
a_std → ~1e-9, so inv_a_std → ~1e6.

Per feedback_isv_for_adaptive_bounds, this is a numerical-stability
anchor (Invariant 1: prevent division-by-near-zero amplification),
not a behavioural bound. ISV-driven bounds govern behavior; the
existing 1e-12f floor on a_std at line 274 is also a structural
anchor — same class of fix.

Validation gate: Smoke A2-A GRAD_CLIP_OUTLIER count <100 in fold 2
(was 1109 pre-fix). The 3-order-of-magnitude reduction in worst-
case amplification should bring C51 grad spikes back under SP7
budget controller authority.

Audit doc: Fix 40 added (parallel to Fix 39 for A.2 and Fix 41 for
A.3); the stale "A.1 deferred" note was removed in the A.3 commit.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 18:09:21 +02:00
jgrusewski
1420383212 fix(sp14): A.3 — stagnation warmup gate at fold boundary
compute_aux_w_p0b's stagnation term was firing inappropriately at
fold reset because Pearl-A first-observation bootstrap forces both
EMAs equal:
  short_ema = sentinel 0.5 → first observation X
  long_ema  = sentinel 0.5 → first observation X (same update)
  improvement = max(0, short - long) = 0
  stagnation = (1 - 0/max(deficit, 0.005)) = 1.0
  aux_w *= (1 - 0.7) = 0.3 → spurious decay on a non-stagnation

Fix: add epochs_in_fold parameter; skip stagnation when < 1. Wait
one full epoch for the α=0.3 vs α=0.05 short/long EMA timescale
split to produce real improvement signal.

Atomic refactor (feedback_no_partial_refactor): all 5 callers
migrated — 1 production site (training_loop.rs:4257) plus 4
existing unit tests at trainers/dqn/trainer/tests.rs.

Test: aux_w_stagnation_warmup_gate_epoch_0 verifies:
  - Epoch 0: stagnation = 0, aux_w = base × deficit_amp = 0.625
  - Epoch 1: stagnation = 1.0, aux_w = floor 0.15

Combined with A.2 (clamp lift), Fold 2's aux_w should now hit
0.625 in epoch 0 (the controller's intended post-deficit-amp
value) instead of being collapsed to 0.164.

Audit doc: Fix 41 added; stale "A.1 deferred" note from a prior
killed agent was also removed (A.1 lands in the next commit, not
deferred per user direction).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 18:07:12 +02:00
jgrusewski
731cae4c80 fix(sp14): A.2 — lift set_aux_weight clamp to SP13 P0b range [0.15, 1.5]
The pre-fix clamp at gpu_dqn_trainer.rs:14722 was [0.05, 0.3] — the
SP11-era cap. P0b's controller computes aux_w in [0.15, 1.5] (base
0.5 × [0.3, 3.0]) but the setter silently chopped everything above
0.3, masking the deficit-amplification term entirely.

Smoke A trace confirmed:
  Fold 0/1: raw aux_w = 0.66-0.80 → clamped to 0.30 (deficit invisible)
  Fold 2:   raw aux_w = 0.164 (stagnation; below clamp) → 45% deficit

Post-fix: deficit-amp term `(1 + 5 × deficit)` actually expresses
through to the trainer. Fold 2 stagnation will get the designed
floor 0.15 instead of being capped at 0.3 — but the upper range
1.5 also opens, so deficit-amp can pull aux_w up when accuracy is
below target.

Constants imported from sp13_isv_slots.rs (AUX_W_BASE=0.5,
AUX_W_HARD_FLOOR_RATIO=0.3, AUX_W_HARD_CEIL_RATIO=3.0). No new
slots; existing constants exposed as the clamp bounds.

Test: set_aux_weight_clamp_range verifies constants resolve correctly.

A.1 (C51 atom-probability floor) deferred — Phase 0 verification
found the spec's stated `−log(p)/p · ∂p/∂z` divide does NOT exist
in c51_grad_kernel.cu at HEAD 037c24116; actual kernel uses the
numerically-stable `expf(lp) - proj`. The 1109 GRAD_CLIP_OUTLIER
events in Smoke A are real but their mechanism is different. Will
be re-spec'd as a separate task post-SP14.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 17:52:18 +02:00
jgrusewski
6657e56265 feat(sp13): B1.1b — producer kernel + replay direct path + experience collector
Final piece of the SP13 Layer B chain. B1.1a flipped the aux head from K=1
MSE regression to K=2 softmax CE classification but aux_nb_label_buf was
zero-init — model was training on "all bars are class 0 (down)". B1.1b
lands the producer kernel that fills i32 -1/0/1 labels from the 30-bar
price trajectory, the replay direct-path 8th gather that carries those
labels into the trainer, and the experience collector hoist that ensures
bar_indices_pinned is always populated (producer + hindsight relabel both
consume it). Aux head finally trains on real classification signal.

Recovery commit: this completes a B1.1b agent dispatch that crashed
mid-edit. The implementer had landed ~95% of the cascade (kernel file,
build.rs, replay buffer signature + direct path, fused_training getter,
trainer accessor, both training_loop.rs callers, kernel field + cubin
loader on the experience collector) before being killed. The missing
pieces (experience collector launch + bar_indices_pinned hoist + 6
producer tests + audit doc) were completed manually post-crash and
verified end-to-end.

Three contracts (atomic single commit per feedback_no_partial_refactor):

  1. NEW aux_sign_label_kernel.cu producer — pure per-thread O(1) map
     reading targets[bar*6+2] (raw_close column) at bar and bar+lookahead,
     writing -1 (skip if bar+lookahead >= total_bars), 0 (down/flat under
     strict greater-than tie-break), or 1 (up). Replaces B0 alloc_zeros.

  2. Replay direct-path 8th gather — set_trainer_buffers gains 8th arg
     trainer_aux_sign_labels_ptr; direct branch in sample_proportional
     adds gather_i32_scalar into the trainer ptr; fallback gather wrapped
     in if !direct_to_trainer (avoids wasted DtoD). Direct-mode
     GpuBatchPtrs return points aux_sign_labels_ptr at trainer ptr.

  3. Experience collector bar_indices_pinned cpu-fill hoist — moved out
     of if hindsight_fraction > 0.0 so producer + hindsight share it.

Files (9 total):
  - crates/ml/src/cuda_pipeline/aux_sign_label_kernel.cu (NEW)
  - crates/ml/build.rs (cubin registration)
  - crates/ml/src/cuda_pipeline/gpu_experience_collector.rs (kernel
    field + cubin loader + struct init + hoist + producer launch)
  - crates/ml-dqn/src/gpu_replay_buffer.rs (8th arg + direct gather +
    fallback skip + GpuBatchPtrs return)
  - crates/ml/src/cuda_pipeline/gpu_dqn_trainer.rs (aux_nb_label_buf_ptr
    accessor mirrors 6 existing trainer-buf accessors)
  - crates/ml/src/trainers/dqn/fused_training.rs
    (trainer_aux_sign_labels_buf_ptr getter)
  - crates/ml/src/trainers/dqn/trainer/training_loop.rs (both
    set_trainer_buffers callers updated)
  - crates/ml/tests/sp13_layer_b_oracle_tests.rs (6 NEW producer tests)
  - docs/dqn-wire-up-audit.md (B1.1b section)

Hard rules upheld:
  - feedback_no_partial_refactor: every consumer of the 3 contracts
    migrates atomically
  - feedback_no_atomicadd: producer is pure map; no reductions
  - feedback_cpu_is_read_only: producer GPU-only; only host work is
    pre-existing bar_indices_pinned cpu-fill (hoisted unchanged)
  - feedback_no_stubs: kernel output flows through real chain — ring
    buffer → direct gather → aux_nb_label_buf → CE consumer
  - feedback_no_legacy_aliases: 8-arg setter gets
    #[allow(clippy::too_many_arguments)] not an alias shim
  - feedback_no_htod_htoh_only_mapped_pinned: targets_buf and
    bar_indices_pinned both pre-existing mapped-pinned

Build + test:
  - cargo check --workspace clean (only pre-existing warnings)
  - cargo check --workspace --tests clean
  - 17 tests in sp13_layer_b_oracle_tests.rs:
    - 2 CPU-only (fingerprint bump + HEALTH_DIAG snap stable) pass
    - 15 GPU on RTX 3050 Ti pass (9 B1.1a + 6 new B1.1b producer):
        aux_sign_label_monotone_up_all_ones
        aux_sign_label_monotone_down_all_zeros
        aux_sign_label_flat_all_zeros_strict_gt
        aux_sign_label_last_30_bars_skip
        aux_sign_label_boundary_first_valid_last_skip
        aux_sign_label_multi_episode_per_episode_skip

Producer tests cover every edge case in the kernel:
  - Monotone trajectories (label=1 / label=0 across all valid bars)
  - Flat tie-break (strict greater-than means flat → 0)
  - Skip sentinel for last lookahead bars
  - First/last bar boundary (bar=0 valid, bar=L-1 skip)
  - Multi-episode global skip semantics

Next: Smoke A — L40S 5-epoch validation of full SP13 stack
(P0a + P0b + B0 + B0.1 + B1.0 + B1.1a + B1.1b). Expected: aux head
trains on real K=2 softmax CE labels; aux_dir_acc_short_ema rises above
0.5 within first epoch (vs B1.1a degraded baseline at 0.5);
HEALTH_DIAG aux_b1_diag emits per-epoch with n_down/n_up/n_skip/mask_frac.
If aux_dir_acc_short_ema > 0.55 by epoch 5, B1.1b is validated and the
chain merges to main.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 14:45:47 +02:00
jgrusewski
7d10ea8b3e feat(sp13): B1.1a — K=1→2 + softmax CE kernel rewrites + struct flips
Flips the aux next-bar head from K=1 MSE regression to K=2 softmax
cross-entropy classification. Kernel ABIs, struct fields, partial-buf
shapes, and per-step ISV producers all migrate atomically; the producer
that fills `aux_sign_labels` with real -1/0/1 from the price trajectory
lands separately in B1.1b.

Why split B1.1a from B1.1b: the original B1 brief was decomposed (B1.0
+ B1.1) after six full-B1 dispatches confirmed agent-session capacity
is the bottleneck, not cascade understanding. B1.1 itself is now further
split into B1.1a (kernel/struct/test cascade — this commit) and B1.1b
(producer kernel + replay direct path + experience collector hoist +
remaining tests + Smoke A). B1.1a is contract-consistent atomic
kernel-side; B1.1b lands the producer + smoke.

Why labels stay zero-init: B1.1a is producer-less by design. The
`aux_nb_label_buf: CudaSlice<i32>` is `alloc_zeros<i32>` so every
sample receives label 0 ("down"). The model converges on "predict
class 0 (down) everywhere" until B1.1b lands the producer kernel that
fills real -1/0/1 from the 30-bar price trajectory. This degraded
training behavior is intentional and known — the cascade is internally
consistent (every consumer of K-flip / softmax tile / CE / i32 label
migrates atomically per `feedback_no_partial_refactor`); the labels are
placeholder. Local unit tests (CE correctness, dir_acc correctness,
isv_tanh correctness, fingerprint bump) validate B1.1a in isolation;
no L40S smoke runs between B1.1a and B1.1b.

Four contracts (atomic in this commit):
  1. K_NB flip 1 → 2: AUX_NEXT_BAR_K constant, compute_param_sizes
     ([121]/[122] grow), fingerprint seed rename
     (PARAM_AUX_NB_W2/B2 → PARAM_AUX_NB_W2_K2/B2_K2 — bumps the hash),
     forward + backward kernels, partial-buf allocs (nb_w2 [B,H]→[B,K,H],
     nb_b2 [B]→[B,K]), saxpy spec table, max_aux_tensor_len,
     aux_nb_pred_buf renamed to aux_nb_logits_buf per
     feedback_no_legacy_aliases.
  2. Softmax tile: aux_next_bar_forward writes [B, K] softmax via
     in-kernel stable softmax (max-shift form, K=2 single-thread fanout
     mirrors regime kernel); 4 consumers read the tile (loss, backward,
     dir-acc, isv-tanh). NEW field aux_nb_softmax_buf [B, K].
  3. MSE → CE: aux_next_bar_loss_reduce reads softmax + i32 labels,
     masks -1, divides by B_valid (mean-over-valid-rows), writes loss +
     B_valid scalar. aux_next_bar_backward reads B_valid so loss + grad
     share the same divisor — derivatives of the same scalar function.
     NEW field aux_nb_valid_count_buf [1]. All-skip batch produces
     loss = 0 (no NaN; fmaxf(valid, 1) divisor) and zero gradients.
     Numerical floor 1e-30 prevents -log(0) = +inf in extreme-logit path.
  4. i32 label dtype: aux_nb_label_buf flipped f32 → i32; -1 mask
     sentinel handled across loss + backward + dir-acc + isv-tanh.
     The strided_gather of next_states[:, 0] retired entirely.

Cascade (atomic per feedback_no_partial_refactor):
- aux_heads_kernel.cu: aux_next_bar_forward gains K + softmax tile
  output (via in-kernel stable softmax); aux_next_bar_loss_reduce
  ABI flipped (softmax + i32 labels, mean-over-valid CE,
  valid_count_out); aux_next_bar_backward ABI flipped (softmax +
  i32 labels + valid_count, K-fanout d_logits, masked rows zero
  across the K-vector)
- aux_dir_acc_reduce_kernel.cu: read softmax + i32 labels, argmax
  over K, output grew 3 → 6 floats (added n_down/n_up/n_skip);
  shmem 4 → 6 int arrays
- aux_pred_to_isv_tanh_kernel.cu: read softmax tile, compute
  mean(softmax[:, 1] - softmax[:, 0]); tanh transcend retired
  (structural [-1, +1] bound via softmax components per
  pearl_bounded_modifier_outputs_require_structural_activation)
- gpu_aux_heads.rs: AUX_NEXT_BAR_K 1 → 2; forward_next_bar gains K +
  logits_out + softmax_out args; next_bar_loss_reduce gains K +
  valid_count_out; backward_next_bar gains softmax_in + labels_i32_in
  + valid_count_in + K
- gpu_dqn_trainer.rs: compute_param_sizes ([121]/[122]); fingerprint
  seed rename (W2/B2 → W2_K2/B2_K2); struct fields (logits, softmax,
  i32 label, valid_count); aux_dir_acc_buf 3 → 6 floats; partial-buf
  allocs grow; max_aux_tensor_len extended; saxpy spec table updated;
  orchestrator launchers (launch_aux_dir_acc_reduce,
  launch_aux_pred_to_isv_tanh, launch_sp13_aux_dir_metrics) gain K
  arg; strided_gather block deleted entirely
- training_loop.rs: aux_b1_diag HEALTH_DIAG line reads
  aux_dir_acc_buf [3..6] for n_down / n_up / n_skip + mask_frac;
  doc comment update for the per-step aux dir-metrics block
- tests/sp13_phase0_oracle_tests.rs: 6 dir_acc + 3 isv_tanh tests
  rewritten in-place to new ABI (no shadow tests, per
  feedback_no_legacy_aliases)
- tests/sp13_layer_b_oracle_tests.rs (NEW): 11 B1.1a tests — 5 CE
  loss/backward (single-row, batch-mixed, all-skip-NaN, backward
  single-row, backward batch-mixed); 2 dir_acc (handcrafted argmax,
  all-skip NaN-safe); 2 isv_tanh (bounded fuzz, mean handcrafted);
  2 layout regression (fingerprint bump, HEALTH_DIAG snap stable)
- docs/dqn-wire-up-audit.md: B1.1a section

Hard rules upheld:
- feedback_no_partial_refactor: every consumer of K-flip / softmax tile
  / CE / i32 labels migrates atomically — kernels + orchestrators +
  struct + diag + existing oracle tests
- feedback_no_atomicadd: block tree-reduce only; CE loss reduce uses
  2 parallel partial-reduction strips; CE backward uses existing
  per-sample partial → final aux_param_grad_reduce pattern
- feedback_cpu_is_read_only: aux_nb_label_buf is GPU-resident
  CudaSlice<i32>; HEALTH_DIAG aux_b1_diag reads via mapped-pinned
  aux_dir_acc_buf (no DtoH)
- feedback_no_stubs: every new buffer + kernel arg wired through to
  a real consumer; CE forward / loss / backward chain executes
  end-to-end against placeholder labels (degraded behavior, not stub)
- feedback_no_legacy_aliases: aux_nb_pred_buf renamed in-place
  (no shim); PARAM_AUX_NB_W2/B2 renamed to _W2_K2/_B2_K2 in seed
  (no _DEPRECATED alias); 9 existing oracle tests rewritten in-place
- feedback_no_cpu_test_fallbacks: 9 GPU tests gated #[ignore]; 2
  layout-regression tests are CPU-only (pub const + size_of)
- feedback_no_htod_htoh_only_mapped_pinned: every CPU↔GPU buffer
  in tests + production is MappedF32Buffer / MappedI32Buffer
- feedback_isv_for_adaptive_bounds: no hardcoded thresholds added
  (1e-30 numerical floor on log is stability epsilon, not tunable)
- feedback_trust_code_not_docs: 8/8 Phase 0 anchors verified at
  HEAD 75e94858c before editing
- pearl_bounded_modifier_outputs_require_structural_activation:
  softmax IS the structural activation; runtime tanh squash retired

Build: cargo check --workspace --tests clean.
Tests:
  - snapshot_size_is_stable passes at 149*4=596 bytes (B1.1a
    doesn't touch HEALTH_DIAG snap-words)
  - fingerprint_bumped_from_pre_b1_1a passes (proves W2/B2 rename
    flipped seed hash)
  - health_diag_snap_size_stable_at_149_floats passes
  - 9 GPU oracle tests in sp13_layer_b_oracle_tests pass on local
    RTX 3050 Ti (B=1/4)
  - 14 tests in sp13_phase0_oracle_tests pass (6 dir_acc + 3
    isv_tanh rewrites + 5 unchanged hold/EMA tests)

Pre-existing test failures (14) on `cargo test -p ml --lib` are
environmental (OFI test data missing, etc.) and reproduce identically
at HEAD 75e94858c (B1.0) — verified via git stash round-trip.

Net delta: 9 files (8 source + 1 audit doc), +1039 / −539 LOC.

Next: B1.1b — producer kernel + replay direct-path 8th gather +
experience collector hoist + remaining 7 tests (6 producer + 1
end-to-end round-trip) + Smoke A on L40S.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 14:09:48 +02:00
jgrusewski
75e94858c5 feat(sp13): B1.0 — ISV[117] retirement + scale-free MSE bridge
Retires ISV[117]=AUX_LABEL_SCALE_EMA_INDEX together with its producer
kernel (aux_label_scale_ema_update), launch site, backward pass-through,
StateResetRegistry entry, HEALTH_DIAG snapshot field, and unit test.

Why: labels at the data layer are z-normalised, so the
mean(|label|) EMA tracked by ISV[117] sits at ~1.0 empirically.
Dividing by max(scale, 1e-6) before the residual `(pred - label)`
reduces to `(pred - label)` within rounding. The divisor was a
defensive scaffold from when the data layer carried mixed-scale
labels (1e-3 log returns vs 5000 raw prices); z-normalisation made
that scaffold redundant.

This is a numerical bridge, NOT the final fix. B1.1 lands on top:
- Aux head 1→2 dim (next-bar regression → 2-class direction logit)
- MSE → CE loss flip
- aux_dir_acc reads softmax over the 2 logits
- aux_pred_to_isv_tanh rewrite as logit-diff
- Producer kernel that fills aux_sign_labels with real -1/0/1 from
  the 30-bar price trajectory (B0 plumbing currently zero-init)
- dqn_param_layout fingerprint bump (head dim changes)
- aux_b1_diag HEALTH_DIAG metric
- 17+ GPU oracle unit tests

Cascade (atomic per feedback_no_partial_refactor):
- aux_heads_kernel.cu: aux_next_bar_loss_reduce + aux_next_bar_backward
  drop `isv` + `isv_label_scale_index` params; residual is (pred - label)
- aux_heads_loss_ema_kernel.cu: aux_label_scale_ema_update kernel deleted
- gpu_aux_heads.rs: kernel field/loader + launch_label_scale_ema +
  isv_* args from next_bar_loss_reduce / backward_next_bar all dropped
- gpu_dqn_trainer.rs: Step 2b producer launch + ISV slot uses dropped;
  AUX_LABEL_SCALE_EMA=117 line retained in fingerprint seed
  (no fingerprint bump in B1.0; B1.1 will bump on head-dim flip)
- gpu_health_diag.rs + health_diag.rs: aux_label_scale snapshot field
  dropped; aux block 4→3 floats, downstream offsets shift down by 1,
  WORD_TOTAL 150→149, snapshot_size_is_stable test 150*4 → 149*4
- health_diag_kernel.cu: WORD_AUX_LABEL_SCALE removed, downstream
  offsets shift, static_assert(WORD_TOTAL == 149)
- state_reset_registry.rs: isv_aux_label_scale_ema FoldReset dropped
- training_loop.rs: reset_named_state arm + HEALTH_DIAG read +
  aux line label_scale field all dropped
- sp4_producer_unit_tests.rs: load_aux_label_scale_ema_kernel helper +
  sp4_aux_label_scale_ema_writes_step_obs_via_pearl_a_then_converges_pearl_d
  test dropped

Hard rules upheld:
- feedback_no_partial_refactor: every consumer of ISV[117] migrates
  atomically — kernel + Rust orchestrator + producer launch + backward
  + HEALTH_DIAG + reset registry + unit test all in this commit
- feedback_no_stubs: not a stub — divisor is removed at every site,
  not aliased through a 1.0_const shim
- feedback_no_legacy_aliases: no legacy AUX_LABEL_SCALE_EMA_INDEX → 1.0
  alias function
- feedback_no_hiding: doc comments forward to B1.1 explicitly; no
  underscore suppression or #[allow(dead_code)]

Build: cargo check --workspace --tests clean.
Tests: snapshot_size_is_stable passes at 149*4=596 bytes.
       cargo test -p ml --lib + cargo test -p ml-dqn --lib compile.

Net delta: 10 files, −288 LOC.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 10:52:13 +02:00
jgrusewski
6a869ad366 fix(sp13): B0 cascade gap — 5 unaudited insert_batch call sites
The B0 audit (commit 62ab8ed85) under-counted insert_batch test
callers as 2 (1 production + 1 in-file unit test). Surfaced during
B1.0 implementation when cargo check --workspace --tests failed
with 5 arity-mismatch errors after B0's signature change.

Root cause: B0 audit's grep filter was `grep -v test` and didn't
enumerate crates/ml/src/trainers/dqn/smoke_tests/ (compiled as
part of the lib's test binary, not behind #[cfg(test)]) nor
crates/ml/tests/.

Sites fixed (zero-init i32 alloc, threaded through):
  - crates/ml/src/trainers/dqn/smoke_tests/training_stability.rs:152, 196
  - crates/ml/src/trainers/dqn/smoke_tests/performance.rs:142
  - crates/ml/src/trainers/dqn/smoke_tests/gpu_residency.rs:75
  - crates/ml/tests/gpu_per_integration_test.rs:125

No behavior change — the column carries zero data and no consumer
reads it pre-B1.1. B1.1 lands the producer kernel that fills with
-1/0/1 from the 30-bar price trajectory.

Process correction documented in docs/dqn-wire-up-audit.md
"B0.1 cascade-gap fix-up" subsection: future B-series audits must
run cargo check --workspace --tests before claiming cardinality
completeness.

Build: cargo check --workspace --tests clean.
Tests: cargo test -p ml --lib compiles + passes (GPU tests
#[ignore]-gated).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 10:46:20 +02:00
jgrusewski
62ab8ed850 feat(sp13): B0 — replay buffer i32 ring + GpuBatchPtrs plumbing
Pure plumbing: threads a new i32 column (aux_sign_labels) through every
layer of the replay path so B1 can wire the aux head's CrossEntropy
classification target without touching any aggregator or batch-shape
contract on its own. No consumer reads the column yet — all labels are
zero-initialized; smoke between B0 and B1 should be bit-identical to
parent 0ad5b6fa4 modulo allocator entropy.

Why split B0 from B1: original Layer B Commit 1 bundled replay plumbing
with the aux head contract change (1->2 dim, MSE->CE, slot 117 retire,
fingerprint bump). Four implementer subagents in a row hit
NEEDS_CONTEXT on brief-accuracy issues — too large for a single
dispatch. Split keeps B0 mechanical and isolates B1 for fresh
implementer with audit-derived brief.

Wiring (data flow):
  1. scatter_insert_i32 kernel mirrors scatter_insert_u32 but preserves
     -1 sentinels (u32 would alias to 4294967295). gather_i32_scalar at
     #18c is symmetric.
  2. ReplayKernels.scatter_insert_i32 field + ld() loader.
  3. GpuReplayBuffer.aux_sign_labels: CudaSlice<i32> ring [capacity] +
     sample_aux_sign_labels: CudaSlice<i32> per-batch gather dst.
  4. insert_batch signature gains aux_sign: &CudaSlice<i32>. Body
     scatter-launches alongside actions/rewards/dones using same
     (ci, cpi, bsi) tuple.
  5. sample_proportional Step 3c launches gather_i32_scalar from ring
     into sample buffer. Both GpuBatchPtrs return paths set
     aux_sign_labels_ptr to sample buffer raw_ptr.
  6. GpuBatchPtrs.aux_sign_labels_ptr: u64 publicly exposed.
  7. GpuExperienceBatch.aux_sign_labels field — collect_experiences_gpu
     alloc_zeros total-sized i32 slice (B1 replaces with producer kernel).
  8. Single production caller training_loop.rs:2032 threads through.

Audit-verified call site cardinality (per implementer 4 finding):
  - 1 production insert_batch caller (training_loop.rs:2032)
  - 1 in-file unit test caller (signature updated)
  - 2 GpuBatchPtrs construction sites (both inside sample_proportional)
  - 1 GpuExperienceBatch construction site (collect_experiences_gpu)

Implementer 4 caught the over-counted 4 sites claim from the original
brief — the 2 extras were doc-comment references to
insert_batch_with_episode_ids (no separate function exists).

Hard rules upheld:
  - feedback_no_partial_refactor: every insert_batch consumer migrates
    atomically (1 prod + 1 test, both updated)
  - feedback_no_stubs: column carries real data through real kernels;
    zero values are valid i32 that B1 overwrites with -1/0/1
  - feedback_isv_for_adaptive_bounds: no new ISV slots; slot 117
    AUX_LABEL_SCALE_EMA retirement deferred to B1 atomic
  - feedback_no_atomicadd: no new producers/reductions
  - feedback_cpu_is_read_only: alloc_zeros + scatter + gather all GPU

Build: cargo check --workspace clean in 21s.

Audit: docs/dqn-wire-up-audit.md SP13 Layer B B0 section added with
wiring diagram, call site cardinality table, and B1 next-steps for
fresh-implementer dispatch.

Files: 92 LOC net across 4 source files + audit doc:
  - crates/ml-dqn/src/replay_buffer_kernels.cu (+21)
  - crates/ml-dqn/src/gpu_replay_buffer.rs (+54)
  - crates/ml/src/cuda_pipeline/gpu_experience_collector.rs (+17)
  - crates/ml/src/trainers/dqn/trainer/training_loop.rs (+1)
  - docs/dqn-wire-up-audit.md (B0 section)

Next: B1 — aux head 1->2 dim, MSE->CE loss, aux_dir_acc reads softmax,
aux_pred_to_isv_tanh logit-diff rewrite, slot 117 retirement,
dqn_param_layout fingerprint bump, kernel populates aux_sign_labels
with real -1/0/1 labels, aux_b1_diag HEALTH_DIAG, 17+ unit tests.
B1 dispatched to fresh implementer with this audit doc as truth-source.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 09:43:00 +02:00
jgrusewski
bdc5cb8bb2 feat(sp13): P0b — aux_w deficit+stagnation controller + Hold cost lift
P0a smoke (train-67gqb on f934ea171) returned PARTIAL: aux_dir_acc climbed
0.149 → 0.483 in 10 epochs (signal exists), but val_win_rate stuck at 0.4638
and observed_hold_rate climbed to 0.479 despite controller saturating at
2.4× base. Two findings drive P0b:

(1) aux_w=0.05 (SP11-era clamp) starves the aux head of gradient. Replace
    inverted formula at training_loop.rs SP11 site with deficit+stagnation:
        deficit  = max(0, target - short_ema)
        improve  = max(0, short_ema - long_ema)
        stag     = (deficit > 0.005) ? clamp(1 - improve/deficit, 0, 1) : 0
        aux_w    = base × (1 + 5 × deficit) × (1 - 0.7 × stag),
                   clamped [0.3×base, 3.0×base]
    base 0.05 → 0.5 (10× lift). Stagnation decay prevents permanent
    destabilisation in data-limited case. Formula extracted as host helper
    `compute_aux_w_p0b(target, short, long)` for unit-test coverage.

(2) HOLD_COST_BASE=0.001 was too weak — max cost 0.005/bar × 30-bar hold =
    0.15 cumulative vs ±5-10 reward range = <3% of magnitude. Lift to 0.005
    (max 0.025/bar × 30 bars = 0.75 cumulative ≈ 10-15% of capped reward).
    Genuinely deters lazy Hold without crippling MFT use. Constructor
    static-init unchanged: it still writes the (now-lifted) HOLD_COST_BASE
    constant to slot 380 at fold boundary.

Per pearl_event_driven_reward_density_alignment tension already addressed
in P0a spec; the lift doesn't change the architecture, just the calibration.
Per feedback_isv_for_adaptive_bounds: base/gain/decay/floor/ceil are
numerical anchors; target/short/long EMAs read from ISV.

Tests: 3 new unit tests for controller formula (aux_w_at_target_returns_base,
aux_w_stagnation_decays_to_floor, aux_w_improving_amplifies_above_base).
14 SP13 GPU oracle tests + 14 SP12 reward-math tests still green; no kernel
changes.

Audit-doc updated with P0b section per Invariant 7.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 08:10:35 +02:00
jgrusewski
f934ea1719 feat(sp13): P0a atomic — Hold-pricing + dir_acc instrumentation (additive)
Tests user's hypothesis (Hold being FREE is the bug, not Hold itself) by
pricing Hold via ISV-driven adaptive controller targeting 20% Hold-rate.

11 new SP13 ISV slots [372..383). 5 new GPU kernels:
- aux_dir_acc_reduce_kernel.cu (correct/pos_pred/pos_label/valid → 3 scalars)
- hold_rate_observer_kernel.cu (packed batch_actions decode, count(Hold)/B)
- apply_fixed_alpha_ema_kernel.cu (preserves short/long timescale split that
  Wiener-optimal apply_pearls_ad_kernel would collapse)
- aux_pred_to_isv_tanh_kernel.cu (mean(tanh(aux_pred)) → ISV[375])
- 3 reward-composition sites in experience_kernels.cu subtract isv[HOLD_COST]
  on Hold actions (segment_complete pre-asymmetric-cap, positioned-non-event
  per-bar, flat per-bar)

Host-side controller in training_loop.rs:
  excess = max(0, observed - target)
  hold_cost = HOLD_COST_BASE × (1 + 5 × excess), clamped [0.5×, 5.0×base]

Per-step observer + EMA chain in gpu_experience_collector.rs after
experience_action_select. Per-epoch HEALTH_DIAG emit:
  aux_dir_acc target/short/long/pred_tanh
  hold_pricing observed_rate/target/cost

4-way action space stays (ExposureLevel::Hold preserved). Replay buffer /
fxcache compatibility preserved. SP11 (11/11) + SP12 (14/14) tests no
regression. SP13 P0a oracle tests: 14/14 on RTX 3050 Ti.

Spec/plan: docs/superpowers/{specs,plans}/2026-05-04-sp13-redefine-success-for-predictive-skill.md (v3)
Audit: docs/dqn-wire-up-audit.md (SP13 P0a section appended)

v2 → v3 reframe: P0a.T3 v2 implementer's audit found DirectionAction enum
doesn't exist (codebase uses 8-variant fused ExposureLevel cascading through
77 files). v3 reframes from "eliminate Hold" (250 LOC + 32-test cascade) to
"price Hold" (additive, no contract change, no cross-crate cascade).

Tension with pearl_event_driven_reward_density_alignment acknowledged in spec
— per-bar Hold cost is exposure-NEGATIVE (pulls policy AWAY from Hold-default,
inverse of the pearl's failure mode), models real economic carry, ISV-bounded
by controller. Faithful reward modeling, not artificial shaping.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 00:52:54 +02:00
jgrusewski
a1681abc46 Revert "exp(sp13): aux_w=1.0 override + directional accuracy metric for data investigation"
This reverts commit d2a27a0042.
2026-05-04 22:23:53 +02:00
jgrusewski
d2a27a0042 exp(sp13): aux_w=1.0 override + directional accuracy metric for data investigation
One-shot diagnostic to answer the SP13 root question: does the data have
predictable directional signal at the bar level?

Wires the existing `aux_next_bar_loss_reduce` kernel (which already had a
4-strip shmem reduction emitting `[dir_acc, pos_pred_frac, pos_label_frac]`
into a 3-float output) end-to-end:
  - `gpu_aux_heads.rs`: launcher takes `dir_acc_out_ptr`, allocates 4×AUX_BLOCK
    shmem to back the four parallel reductions.
  - `gpu_dqn_trainer.rs`: adds `aux_nb_dir_acc_buf` (3 f32 device buffer),
    threads it through the loss-reduce launch, exposes `read_aux_dir_acc()`
    accessor for once-per-epoch DtoH readback.
  - `training_loop.rs`: pins `aux_w = 1.0` (instead of the ISV-driven 0.05–0.3
    clamp) so the supervised aux head dominates the loss; emits a new
    `HEALTH_DIAG[ep]: aux_dir_acc accuracy=… pos_pred_frac=… pos_label_frac=…`
    line per epoch.

Verdict thresholds:
  * dir_acc > 55% by ep 5 ⇒ data has signal, DQN failing to use it
  * dir_acc ≈ 50% throughout ⇒ data lacks signal at this timescale
  * dir_acc 60–70% ⇒ strong signal we're not using

EXPERIMENT BRANCH — revert this commit after the investigation reads back the
5-epoch table from smoke logs. All five touch points are tagged
"SP13 data-investigation" / "EXPERIMENT" for clean revert.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-04 21:11:16 +02:00
jgrusewski
1c645264e6 test(sp12): GPU oracle tests for the 3 reward math changes
Adds the GPU oracle test scaffold deferred from commit 17cfbb250.

Refactored 3 reward composition functions into device-inline functions
in trade_physics.cuh for testability without behavior drift:
  - compute_asymmetric_capped_pnl
  - compute_min_hold_penalty
  - compute_lump_sum_opp_cost

experience_kernels.cu's segment_complete branch now calls these helpers
in place of the inline math; the lump-sum opp_cost helper preserves the
production multiplication order via parens so the refactor is bit-
equivalent under f32 rounding to the inline computation it replaces.
The min-hold helper subsumes the original `if (hold_time < target)`
early-exit (returns 0 when at/past target — capped_pnl - shaping_scale
* 0 == capped_pnl).

New test kernel sp12_reward_math_test_kernel.cu exposes the device
functions for GPU oracle testing. The wrapper is single-thread / single-
block (the math is pure register arithmetic) and writes outputs to
mapped-pinned buffers with __threadfence_system() for host visibility,
matching the thompson_test_kernel / sp4_histogram_p99_test_kernel
pattern. Cubin registered in build.rs alongside the other test kernels.

New test module crates/ml/tests/sp12_reward_math_tests.rs covers all
three changes:

  Asymmetric cap (5 tests):
    - clips above pos_cap (+20 -> +5)
    - clips below neg_cap (-20 -> -10)
    - passes through zero
    - exact at pos_cap (+5 -> +5)
    - exact at neg_cap (-10 -> -10)

  Min-hold soft penalty (5 tests):
    - at target -> zero penalty
    - at hold=0,target=30,T=10,max=3 -> 2.25 (factor 30/40 = 0.75)
    - mid-deficit hold=15 -> 1.8 (factor 15/25 = 0.6)
    - past target -> no penalty (early-exit branch)
    - temperature smooths transition (T=10 -> 2.25 vs T=20 -> 1.8)

  Lump-sum opp_cost (4 tests):
    - exiting + position + hold_time -> -0.01
    - zero position -> zero cost
    - zero hold_time -> zero cost
    - negative position -> uses |position| (matches +0.5 magnitude)

Per feedback_no_cpu_test_fallbacks: GPU oracle pattern (synthetic
inputs through real device functions, verified against analytical
expected outputs). No CPU reference impl. Per
feedback_no_htod_htoh_only_mapped_pinned: every CPU<->GPU buffer is
a MappedF32Buffer; zero htod_copy / dtoh_sync_copy. Tests gated with
#[ignore = "requires GPU"] to match the existing sp4/sp5/sp11
producer-test convention.

Verified on RTX 3050 Ti (sm_86):
  SQLX_OFFLINE=true CUDA_COMPUTE_CAP=86 \
    cargo test -p ml --test sp12_reward_math_tests --features cuda \
      -- --ignored --nocapture
  -> 14 passed; 0 failed (3.32s).

Build: SQLX_OFFLINE=true cargo check -p ml --lib --features cuda clean.

Audit doc updated in docs/dqn-wire-up-audit.md (Invariant 7).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-04 19:32:18 +02:00
jgrusewski
17cfbb2503 fix(sp12): per-trade event-driven reward composition
Three architectural changes in one atomic commit per spec ecab584c3:

1. Asymmetric bounded cap (REWARD_NEG_CAP=-10, REWARD_POS_CAP=+5):
   restores prospect-theory loss aversion (2:1 ratio) erased by SP11
   symmetric cap. Per pearl_audit_unboundedness_for_implicit_asymmetry.

2. Min-hold soft penalty with temperature curriculum:
   patience requirement on voluntary exits via deficit/(deficit+T) soft
   factor. Temperature anneals 50->5 across ~100 epochs (curriculum,
   half-life 20 epochs). Trail-fire exits exempted (preserves stop-loss
   design). Penalty flows through r_popart so SP11 controller weighs it
   consistently with other voluntary-exit terms.

3. Zero per-bar shaping (Change 3):
   r_micro = 0 entirely on positioned-non-event bars (per-bar shaping is
   anti-pattern; Q-learning handles credit assignment via TD).
   Per-bar Flat opp_cost zeroed (was the symmetric counterpart to micro).
   r_opp_cost preserved as lump-sum at exit:
     r_opp_cost = -shaping_scale * holding_cost_rate * |position| * hold_time
   on segment_complete (both voluntary and trail-fire). Preserves
   carrying-cost economic concept without per-bar density bias.
   Per pearl_event_driven_reward_density_alignment.

Empirical motivation: train-multi-seed-pmbwn 50-epoch on 6a259942e
showed sharpe-gaming (PnL -30% over 8 epochs while sharpe held at 80).
Three causes: lost loss aversion (Change 1), per-bar gradient (Change
3), no commitment (Change 2). Unified per-trade event-driven design
fixes all three together.

Constants live in state_layout.cuh as Invariant-1 numerical anchors
(REWARD_POS_CAP, REWARD_NEG_CAP, MIN_HOLD_TARGET, MIN_HOLD_PENALTY_MAX,
MIN_HOLD_TEMPERATURE_{START,END,DECAY}). Min-hold temperature is
recomputed in Rust per epoch via min_hold_temperature_for_epoch in
training_loop.rs and passed as a launch scalar. New HEALTH_DIAG line
sp12_event_reward emits the constants per epoch alongside sp11_reward.

Phase 1 = constants only. Phase 2 (ISV adaptive bounds per
feedback_isv_for_adaptive_bounds) deferred until validation results
indicate adaptive need.

LOC: ~344 added (includes spec-required documentation comments)
across experience_kernels.cu, state_layout.cuh,
gpu_experience_collector.rs, training_loop.rs, dqn-wire-up-audit.md.

Build: SQLX_OFFLINE=true cargo check -p ml --lib clean.
Tests: SQLX_OFFLINE=true cargo test -p ml --lib — 938 passed,
13 failed (same 13 failures pre-existing on HEAD ecab584c3, none
related to SP12 changes).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-04 19:04:26 +02:00
jgrusewski
b92dcc3dfc chore(sp11): remove reward-chain diagnostic instrumentation
Instrumentation from 774d7552a served its purpose — empirically
identified the asymmetric reward cap at experience_kernels.cu:2788
as the inflater (popart min reaching -210336 by F0 ep3 pre-fix).
Fixed in 35db31089; validated by smoke-test-trk72 (PASSED).

Removed:
  - reward_chain_diag_reduce_kernel.cu
  - 12 per-sample diagnostic buffers in gpu_experience_collector
  - kernel parameter threading in experience_kernels.cu
  - launcher + reader + mapped-pinned output in gpu_dqn_trainer
  - wire-up site + HEALTH_DIAG emit in training_loop
  - audit doc section for the transient instrumentation

This brings the worktree back to its pre-instrumentation state on
the SP11 reward chain. Symmetric reward cap fix (35db31089) and
plan_isv symmetric clamps (Commit A) remain.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-04 15:14:54 +02:00
jgrusewski
348f6078b8 fix(sp11): plan_isv symmetric clamp — 4 sites mirror reward-cap bug
Implementer of 35db31089 (symmetric reward cap) flagged 4 additional
asymmetric-clamp sites in policy-input features (plan_isv slots),
mirroring the same bug class but on the feature side rather than
reward side:

  experience_kernels.cu:850   plan_isv[PNL_VS_TARGET] capped above only
  experience_kernels.cu:853   plan_isv[PNL_VS_STOP]   capped above only
  backtest_plan_kernel.cu:164 — mirror of 850
  backtest_plan_kernel.cu:168 — mirror of 853

unrealized P&L can be negative -> fminf(x, 2.0) leaves an unbounded
lower tail that produces feature jitter at the policy input, hurting
the network's state representation under losing-trade conditions.
Fix: symmetric clamp via fmaxf(-2.0, fminf(x, 2.0)).

Per pearl_symmetric_clamp_audit (added in close-out commit) and
pearl_bounded_modifier_outputs_require_structural_activation: any
spec-bounded scalar requires bilateral enforcement.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-04 15:07:08 +02:00
jgrusewski
35db310893 fix(sp11): symmetric reward cap — losses were unbounded
experience_kernels.cu:2788:
  float capped_pnl = fminf(base_reward, 10.0f);
                          ^^^^^^^^^^^^^ caps profits, NOT losses

Diagnostic instrumentation in smoke-test-k9drh on commit 774d7552a
captured the asymmetry empirically:
  ep1: r_popart min=-9186, max=+10
  ep2: r_popart min=-79089, max=+10 (growing)

`base_reward = 2.0f * vol_normalized_return` and
`vol_normalized_return = segment_return / vol_norm` where
`segment_return` has no structural lower bound (signed P&L). The
unilateral `fminf(base_reward, 10.0f)` capped the upper tail only,
so a single large adverse segment_return produced an arbitrarily
negative `capped_pnl` → r_popart → r_weighted →
reward_components[+0] → slot 63 (PopArt input EMA), inflating
C51/IQN/Bellman normalization scale and breaking Q-target
consistency across epochs. Empirical fingerprint matched the
within-fold sharpe degradation observed in smoke-test-gwfn8 on
commit fd24b5383 (10→4 within F0, 9→2.5 within F1).

Spec semantic: reward bounded in [-10, +10]. Fix:
  float capped_pnl = fmaxf(-10.0f, fminf(base_reward, 10.0f));

Audit findings (per task §2): all related fminf/fmaxf clamps in
experience_kernels.cu reviewed. Reward modifier chain (3260-3500)
verified bounded once r_popart is bilateral. Other bilateral
clamps already correct (515-517, 2174, 2191, 2227, 3300, 3452,
3729, 3763, 5076, 5210, 5213, 5461, 5535, 6353, 6693, 6694).
Intentional asymmetries verified at 1078, 1082-1085, 2564-2565,
2873, 2949, 4574, 5896 (each documented in the audit doc with
the structural reason the lower side is unbounded).

Latent finding flagged separately (NOT fixed here — feature-side
requires consumer audit per feedback_no_partial_refactor):
plan_isv[PNL_VS_TARGET] at line 850 and plan_isv[PNL_VS_STOP]
at line 853 are upper-clamped at 2.0 but lower-unbounded. These
feed assemble_state as policy features (not reward components),
so out of scope of this reward-chain fix. Mirrored in
backtest_plan_kernel.cu:164,168 (same pattern). Tracking as
follow-up.

Per pearl_bounded_modifier_outputs_require_structural_activation:
spec-bounded values require BILATERAL structural enforcement.
This bug was the asymmetric counterpart to the conviction sigmoid
(which IS correctly bounded structurally).

Diagnostic instrumentation (commit 774d7552a) NOT removed in this
commit — will be removed in a follow-up after the symmetric-cap
smoke validates the fix on L40S.

docs/dqn-wire-up-audit.md updated with Resolution (2026-05-04)
section reflecting root cause, fix, audit follow-through, and the
latent plan_isv finding (per Invariant 7).

Build: SQLX_OFFLINE=true cargo check -p ml --lib — clean.
Test: trainers::dqn::trainer::tests::test_reward_function_price_changes
      passes. (PPO test_reward_computation pre-existing failure on
      HEAD 774d7552a, unrelated — verified via stash+rerun.)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-04 14:42:15 +02:00
jgrusewski
774d7552a0 diag(sp11): instrument reward chain to find the 5000x inflater
Smoke smoke-test-gwfn8 on fd24b5383 showed mean(|reward|) hitting
5054 at F0 ep2 despite all known multiplicative modifiers being
structurally bounded (conviction in (0,1) via sigmoid at line 7579,
cf_flip in +/-1, drawdown in [-5*w_dd,0], shaping_scale in [0,1]). The
inflater is somewhere in the pre-composition or modifier chain that
isn't currently visible in HEALTH_DIAG.

Adds 12 per-sample diagnostic buffers + reduction kernel + HEALTH_DIAG
emit for min/mean/max at every checkpoint in the reward chain:
  - per-component (r_popart, r_trail, r_micro, r_opp_cost, r_bonus)
  - r_weighted (post-composition, pre-modifier)
  - post-modifier sequential (post_dd, post_inv, post_churn, post_conv)
  - sanity checks (position_abs, conviction)

Implementation:
  - 12 new per-sample CudaSlice<f32> buffers in gpu_experience_collector
    (alloc_episodes * alloc_timesteps each); zero-init at every (i,t)
    in the kernel entry block before any early-return; written at
    each checkpoint with NULL-tolerant guards.
  - new reward_chain_diag_reduce_kernel.cu: single-block 256-thread
    block-tree-reduce over the 12 buffers, three lockstep reductions
    (sum/min/max) per buffer in shared memory; outputs 36 floats
    (3 stats x 12 buffers) to a 36-slot mapped-pinned scratch buffer
    on the trainer; no atomicAdd per feedback_no_atomicadd, pure GPU
    compute per feedback_no_cpu_compute_strict, mapped-pinned host
    visibility per feedback_no_htod_htoh_only_mapped_pinned.
  - trainer: cubin load, mapped-pinned 36-f32 output, set_sp11_reward_
    chain_diag_bufs setter, launch_sp11_reward_chain_diag_reduce
    launcher, read_sp11_reward_chain_diag host accessor.
  - training_loop.rs: wires the 12 collector buffers post-construction
    (mirror of the popart-component wire-up); HEALTH_DIAG `reward_
    chain_diag` emit added immediately after `reward_split` — launches
    reduction kernel, syncs stream, reads the 36 floats.
  - build.rs: adds reward_chain_diag_reduce_kernel.cu to the cubin
    manifest.
  - docs/dqn-wire-up-audit.md: new section documenting the
    instrumentation scope, additions, exclusions (no ISV slots, no
    state-reset registry entries), and removal plan.

No state-reset registry entry: this is a transient diagnostic, not
persistent state — buffers reset to 0 every step via the kernel
entry-block default writes (same pattern as the other per-sample
diagnostic buffers like trail_triggered_per_sample). No ISV slots
are added: the host reads the mapped-pinned scratch directly to keep
this lightweight and avoid permanent ISV growth.

Will be removed in a follow-up commit once the inflater is identified
and properly fixed per pearl_bounded_modifier_outputs_require_
structural_activation.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-04 13:55:03 +02:00
jgrusewski
fd24b53833 fix(sp11): B1b launch-order — reward_component_ema before mag-ratio canary
smoke-test-4rbv9 on b3b4d0278 (z-score implementation) showed bit-
identical w_pop=2.000 at ep1 to pre-z-score B1b smoke, proving the
z-score formula was structurally a no-op:

  z[c] = mag[c] / fmaxf(sqrtf(0), EPS_DIV) = mag[c] x 1e6
  ratio[c] = (mag[c] x 1e6) / (1e6 x sum(mag)) = mag[c] / sum(mag)  -> linear

Root cause: launch_reward_component_ema_inplace at line 3707 ran
AFTER launch_sp11_mag_ratio_compute at line 3465. So ISV[64..68]
and ISV[362..366] held sentinel-0 values at ep1's canary read
(ep0 had no segment_complete fires). z[c]=0 for c=1..5 -> popart
ratio collapsed to 1.0 -> controller saturated.

This was structurally the same bug that motivated adding
launch_sp11_popart_component_ema at line 3441 (B1b follow-up).
That fix-up addressed popart but left cf/trail/micro/opp_cost/
bonus stale.

Moved launch_reward_component_ema_inplace from line 3707 to before
launch_sp11_popart_component_ema. Other launches at the original
site (trade_attempt_rate_ema, plan_threshold_update, etc.) stay
where they were — different consumers, different timing constraints.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-04 12:26:18 +02:00
jgrusewski
b3b4d02789 fix(sp11): B1b smoke-recovery — z-score normalization for mag-ratio canary
Linear magnitude ratios in reward_component_mag_ratio_compute_kernel
amplified popart's intrinsic O(100) magnitude over the other 5
components' O(0.1-2) magnitudes, causing controller to saturate
w_pop toward MAX_WEIGHT regardless of actual signal quality.

Replaced with z-score: z[c] = mag[c] / max(sqrt(var[c]), EPS_DIV).
6 new ISV slots [361..367) for per-component variance EMAs computed
via Welford's online algorithm in extended popart_component_ema_kernel
and reward_component_ema_kernel.

Atomic per feedback_no_partial_refactor: slot allocation +
state-reset registry + 2 producer kernels + canary signature +
launcher Pearls A+D + tests.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-04 11:51:30 +02:00
jgrusewski
61b2fa962b fix(sp11): B1b bug 3 — cf-component feedback loop in mag-ratio canary
Deep audit on b435d25be found a third post-B1b bug in same class as
the slot 63 overload: experience_env_step writes cf_reward_weighted
(= w_cf × cf_reward, post-controller-weight) to reward_components_
per_sample[+1] at line ~3696. SP4's reward_component_ema_kernel EMAs
this into ISV slot 64 (REWARD_CF_EMA_INDEX) which the SP11 mag-ratio
canary reads as ratio[1] = slot[64] / Σ.

Self-reinforcing loop:
  high w_cf → high cf_reward_weighted → high slot 64 →
  high ratio[1] → controller raises w_cf → tighter loop

Until mean=1 normalization saturates other components to floor.

The other 5 component slots correctly write RAW pre-weight values:
- rc[+0] = total_reward (intentional, PopArt input — post-composition)
- rc[+2..+5] = r_trail / r_micro / r_opp_cost / r_bonus (all raw, pre-Σ)
- Slot 360 (popart-component) fed by `popart_component_per_sample`
  which receives `r_popart` raw

Only rc[+1] was wrong. Fixed: write raw cf_reward to rc[+1] so the
canary tracks intrinsic cf magnitude. The replay-buffer cf-tuple
reward (out_rewards[cf_off]) still uses cf_reward_weighted — that's
correct, loss kernels train on controller-weighted signal.

This was the third bug in a class — pre-SP11 invariants exposed by
post-decomposition semantic. Trio: (1) slot 63 overload (5e16b67ca),
(2) stale rc[] init + cf_flip ordering (b435d25be), (3) cf-component
feedback loop (this commit).

cargo check + build clean; 6/6 SP11 GPU tests + 14/14 contract tests
still pass. After this fix-up, all known SP11 reward-system bugs
identified by deep audit are resolved. L40S smoke validates empirical
sharpe recovery.
2026-05-04 11:00:47 +02:00
jgrusewski
b435d25bec fix(sp11): B1b bug-hunt fix-up — stale rc[] init + cf_flip ordering
Bug-hunt review on 5e16b67ca found two real bugs in experience_env_step
post-B1b structural refactor — same class as the slot 63 overload
(pre-SP11 invariants exposed by post-decomposition semantic).

Bug 1 (Critical): reward_components_per_sample[+1..+5] not zero-init at
per-bar entry. Slots written only on execution paths that fire (rc[2]
inside segment_complete trail-trigger, rc[3] inside positioned-non-
complete, rc[4] inside flat-with-features, rc[5] inside multiple
bonus paths, rc[1] inside CF block). Non-firing paths leave stale
values from previous batch's same out_off, contaminating SP4
reward_component_ema_kernel -> slots 64..68 -> SP11 mag-ratio canary
-> wrong controller weights.

Fix: zero-init rc[0..6) at the same location where r_<component>
locals are zero-initialized, so locals and buffer reset together.
Eliminates the entire stale-rc class of bugs.

Bug 2 (Important): cf_flip applied BEFORE inventory/churn/conviction
modifiers. Spec section 3.4.4 requires cf_flip LAST so subtractive
penalties operate on the right sign and multiplicative scales
attenuate before direction is flipped. Pre-fix on flipped samples,
inventory/churn ADDED to negated reward (penalty became bonus) and
conviction scaled the wrong-signed value. Asymmetric gradient signals
between flipped/non-flipped -> contaminated SP11 mag-ratio canary at
the cf axis.

Fix: move cf_flip to after conviction_scale, making it the last
modifier before out_rewards write. CF-block contract preserved
(reward at cf_off is still the post-flipped final value; CF block
already does `do_flip ? -reward : reward` to recover unflipped base).

Stale doc-strings: state_reset_registry.rs (2 sites) and
training_loop.rs (1 site) referenced pre-fix-up SP5_PRODUCER_COUNT=186
/ wiener_buffer=771. Updated to formula form
`(71 + SP5_PRODUCER_COUNT) × 3` so they don't drift on the next SP;
current value (post-B1b fix-up slot 360) is SP5_PRODUCER_COUNT=187,
buffer=774 floats.

dqn-wire-up-audit.md: appended SP11 B1b bug-hunt fix-up section
documenting both bugs, the structural fix, the doc-string sweep,
and verification (cargo check/build/tests).

cargo check + build clean; 6/6 SP11 GPU tests + 10/10 sp5_isv_slots
contract tests + 4/4 state_reset_registry tests still pass. The two
bugs were latent in the local smoke (sharpe 3 vs B1a 30 likely
traceable to either or both); structural fix sound. L40S smoke on
this commit will validate the empirical recovery.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-04 10:51:55 +02:00
jgrusewski
5e16b67ca6 fix(sp11): B1b follow-up — add slot 360 for popart-component mag EMA
Per spec §4 amendment at 52c0b7521 on main: B1b smoke surfaced that
SP11 mag-ratio canary was reading slot 63 (REWARD_POPART_EMA_INDEX)
which is overloaded — pre-SP11 PopArt's normalization input (total
reward mag EMA) was the same value as popart-component magnitude
because composition was inline accumulation. B1b decomposition exposed
the overload; controller emitted w_pop ≈ 2.0 based on contaminated
ratio → 10× sharpe drop in smoke.

Resolution:
- Allocate ISV slot 360 = POPART_COMPONENT_MAG_EMA_INDEX
- Add popart_component_per_sample mapped-pinned buffer + write site
  in experience_env_step at the r_popart assignment
- New popart_component_ema_kernel.cu writes slot 360 (single-block
  block-tree-reduce per feedback_no_atomicadd)
- mag-ratio canary kernel signature changes from single
  popart_ema_base_slot to (popart_specific_slot, cf_others_base_slot)
  pair so it reads non-contiguous slot 360 + slots 64..68
- Reset registry: sp11_popart_component_mag_ema entry + dispatch arm
- Slot 63 (PopArt's input) UNCHANGED — pre-SP11 invariant preserved

ISV total: 360 → 361. SP5_SLOT_END = 361. SP5_PRODUCER_COUNT = 187.

cargo check + build clean; SP11 GPU oracle tests pass (6/6 including
updated mag_ratio test with 2 slot-index args); sp5_isv_slots layout
tests pass (10/10 with 185 unique slots / 187 linear span); state
reset registry tests pass (4/4 with new sp11_popart_component_mag_ema
entry + dispatch arm). Local multi_fold_convergence smoke gated on
data volume (175k bars on local fxcache vs 10-month walk-forward
requirement); validation deferred to L40S Argo run on PVC data per
the spec's pass criterion.
2026-05-04 10:29:47 +02:00
jgrusewski
034ba16801 feat(sp11): B1b — structural reward composition refactor (production flip)
Per spec §3.5.3 amended at 7ddaf9c51 on main: experience_env_step
reward composition decomposed from 8+ inline accumulation sites into
explicit per-component locals (r_popart, r_cf, r_trail, r_micro,
r_opp_cost, r_bonus), then composed as Σ w_i × r_i with controller
weights from ISV[340..346).

Trail reward extraction (§3.5.4): trail-fire P&L now flows through
r_trail (forced-exit signal) instead of r_popart (voluntary-exit
signal). REWARD_TRAIL_WEIGHT_INDEX has real signal — controller can
weight forced-exit vs voluntary-exit P&L differently. rc[2] (the
prior structural-placeholder slot) now carries trail magnitude.

Universal post-composition modifiers (§3.4.4): drawdown / capital-
floor / inventory / churn / conviction-scale / cf-flip apply AFTER
the weighted Σ, unweighted. They are risk constraints and structural
operators, NOT learning components — agent cannot weigh them away.

Mean=1 normalization (B0, §3.4.3): weights normalize to mean=1 so per-
bar `w_active × r_active` ≈ pre-SP11 absolute scale on average.

Sentinel-defense: experience_env_step runs at start of epoch, SP11
controller runs at end (training_loop.rs ~3475). At fold 0 epoch 0
step 0 the controller has not yet emitted, so ISV[340..346) hold
sentinel 0. Defense: fmaxf(w_raw, 0.01) — same Invariant-1 hard floor
the controller enforces post-renorm. Cold-start scale = 1% of
pre-SP11; Pearl A bootstrap on first emit replaces sentinel.

cf_reward path: out_rewards[cf_off] now writes controller-weighted
cf reward (w_cf × r_cf with sentinel-defense). Loss-kernel
cf_weight=0.3f at mse:318/c51:789 (structural Q-blend, NOT reward
weight) UNTOUCHED per §3.5 amendment.

Mutual exclusivity preserved (popart / trail / micro / opp_cost):
exactly one path fires per bar; others stay 0. The cascade scalar
`reward` mirrors per-component locals so C.4/D.4b bonus blocks that
read in-progress trade reward (Q-cap pattern from
pearl_one_unbounded_signal_per_reward) keep bit-identical compounding.
After cascade, `reward` is overwritten with r_weighted; post-
composition modifiers operate on r_weighted as before.

This is the production-flip commit. Trainer is now on the SP11
controller end-to-end (modulo replay-time curiosity which lands in
B1c after Layer C audit per §3.5.5).

Verification:
  - cargo check + build clean (1m32s release).
  - 6/6 SP11 GPU oracle tests pass (none exercise env_step directly).
  - 14/14 contract tests pass (sp5_isv_slots=10, state_reset_registry=4).
  - Local smoke (RTX 3050 Ti, 20-epoch magnitude_distribution) verifies
    HEALTH_DIAG sp11_reward weights drift epoch-over-epoch:
      epoch 0: w_pop=1.000 w_cf=1.000 w_tr=1.000 ...   (uniform sentinel-defense floor → mean=1)
      epoch 3: w_pop=1.991 w_cf=2.036 w_tr=0.493 ...   (controller redistributes)
      epoch 9: w_pop=1.823 w_cf=1.887 w_tr=0.572 ...   (mean ≈ 1.0 preserved, Σ ≈ 6)
    EVAL_DIST bit-identical to B1a baseline (eq=0.803 eh=0.197 ef=0.000)
    — pre-existing magnitude eval-collapse pathology
    (project_magnitude_eval_collapse_kelly_capped) unchanged by B1b.

Audit doc updated (Invariant 7): docs/isv-slots.md SP11 section now
reflects Layer B status with B0/B1a/B1b/B1c rollout timeline.
2026-05-04 09:46:53 +02:00
jgrusewski
d5e1214f25 fix(sp11): B1a — saboteur GPU multiplication + SimHash state_stride
Per feedback_cpu_is_read_only, saboteur effective scale now computed
on-device:
- saboteur_generate_params kernel signature gains isv ptr +
  saboteur_intensity_mult_slot parameter
- Kernel reads `mult = fmaxf(isv[saboteur_intensity_mult_slot],
  SABOTEUR_MIN)` (sentinel-0 defense for cold-start before A2's
  controller first runs) and applies `effective_scale = base × mult`
  to perturbation generation
- gpu_experience_collector.rs launcher updated; only one call site

SimHash state_stride parameter added to lookup + update kernels —
prepares for B1c replay-time curiosity wiring against trainer.
states_buf which is STATE_DIM_PADDED=128-strided. Kernel inner loop
reads `state[i × state_stride + d]` (was `i × 42 + d`). Proj-init
kernel unchanged (writes projection, doesn't read states).

Pre-requisite for B1c (curiosity wiring) and a small atomic step
toward full SP11 production behavior.

cargo check + build clean; 6/6 SP11 GPU tests + 14/14 contract tests
still pass.
2026-05-04 08:51:23 +02:00
jgrusewski
302992f63a fix(sp11): B0 — controller renorm Σ=1 → mean=1 (post-A2 spec amendment)
Per spec §3.4.3 amended at 7ddaf9c51 on main: A2's Σweights=1
renormalization caused 6× reward-magnitude collapse on mutually-
exclusive components in experience_env_step (popart/micro/opp_cost
paths fire at most one per bar; weight 1/6 per fired path averages
1/6 of pre-SP11 reward magnitude).

Amended: weights normalize to mean(weights) = 1 (i.e., Σ = N = 6).
Each weight in [WEIGHT_HARD_FLOOR=0.01, MAX_WEIGHT=3.0]. Default
uniform = 1.0 each. Preserves pre-SP11 absolute scale on average.

Code change: reward_subsystem_controller_kernel.cu renormalization
step changes from `weights[c] = blends[c] / blend_sum` to
`weights[c] = min(MAX_WEIGHT, blends[c] × N / blend_sum)`. Anchors
N_COMPONENTS=6.0f and MAX_WEIGHT=3.0f added to the Invariant-1 const
float block at the top of the kernel.

3 A2 controller unit-test assertions updated:
- z_score_at_zero: weight_sum 1.0→6.0; per-component 1/6→1.0
- weights_renormalize_after_floor: assertion strengthened to
  weight_sum ≤ N (cap binds in this pathological test where pre-cap
  dominant weight ≈ 4.18 > MAX_WEIGHT=3.0); added per-component
  ≤ MAX_WEIGHT envelope check; added explicit cap-binding assertion
  on dominant weight.
- saboteur_post_clamp_holds_min: weight assertions unaffected (this
  test asserts only on s[6]/s[7], saboteur+curiosity are independent
  of mean-vs-Σ choice).

Audit doc updated: docs/dqn-wire-up-audit.md gets a new
"SP11 B0 — controller renorm Σ=1 → mean=1 (2026-05-04)" section.

cargo check + release build clean. 6/6 SP11 GPU oracle tests pass on
RTX 3050 Ti. sp5_isv_slots (10/10) + state_reset_registry (4/4)
contract tests still pass.

Pre-requisite for B1b structural reward-composition refactor (§3.5.3)
which depends on the mean=1 semantic.
2026-05-04 08:40:33 +02:00
jgrusewski
44fb4531a8 fix(sp11): A2 follow-up — delete dead launchers + expand XOR-fold rationale
Code-quality review on 25eba79ad found two Important issues:

- launch_sp11_novelty_simhash_lookup + launch_sp11_novelty_simhash_update
  were defined with #[allow(dead_code)] since B1 hasn't wired them yet —
  feedback_no_hiding violation. Deleted both functions; kept the kernel
  handle fields + cubin loads + MappedF32Buffer storage. B1 will inline
  the launches at the actual call site (matching A0's deferral pattern
  for the novelty-hash registry entry). Field doc-refs at the kernel
  declarations updated so no stale name reference remains.

- Seed XOR-fold comment named what ("fold the high + low halves") but
  not why ("to preserve entropy; truncation would silently discard
  upper 32 bits"). Extended comment so a future reader switching to
  truncation gets the warning.

Verified: cargo check clean (18 unrelated warnings, zero errors); 6/6
SP11 GPU oracle tests build under --features cuda (GPU-gated, ignored
on CPU runners); 10/10 sp5_isv_slots + 4/4 state_reset_registry
contract tests pass; allow(dead_code) count is exactly the 12
pre-existing attributes (was 14 before this fix; A2 added 2).
2026-05-04 02:54:57 +02:00
jgrusewski
25eba79ad5 feat(sp11): A2 — controller kernel + SimHash novelty buffer
reward_subsystem_controller_kernel: 5 canaries → 10 outputs, true Z-score
(delta_ema/sqrt(var_ema)), sigmoid blending, weight renormalization to Σ=1,
saboteur post-clamp, curiosity permanent floor (0.2 × bound). Pearls A+D
chained on outputs per spec §3.4.1.

novelty_simhash_kernel: 42×16 random projection → 16-bit SimHash code,
1M-slot bucket count table for novelty signal `1/sqrt(1+count)`. Race-
tolerated update per feedback_no_atomicadd (under-counts bias novelty
UPWARD — safe direction).

novelty_simhash_proj_init_kernel: Philox-seeded GPU init for the
projection matrix (CPU is read-only per feedback_no_cpu_forwards).

HEALTH_DIAG `sp11_reward` line emits 10 outputs + improvement_z each
epoch. Reset registry: novelty hash table reset arm wired (closes the
A0 deferral); projection matrix is frozen at trainer init for run
lifetime, not reset.

All 20 SP11 slots populate every step. No consumer reads them yet —
training behavior unchanged from A1. 3 new GPU oracle tests pass on
RTX 3050 Ti (controller midpoint, weight renorm, saboteur clamp).

Spec: docs/superpowers/specs/2026-05-04-sp11-reward-as-controlled-subsystem.md §3.4 §3.5.2

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-04 02:26:05 +02:00
jgrusewski
66f5fd8f00 fix(sp11): A1 follow-up — remove let _ + correct shmem in tests
Code-quality review on 91b48bc7a found two issues in
sp11_producer_unit_tests.rs:

- :281 `let _ = REWARD_COMPONENT_MAG_RATIO_BASE` violated
  feedback_no_hiding (silent dead-code suppression). Removed the
  suppression and the unused import. The ISV landing slot for the
  mag-ratio producer is exercised by Pearls A+D unit tests, not here.

- :190 saboteur_engagement test passed shared_mem_bytes=1024 for a
  kernel that uses __shared__ (static, allocated at compile time),
  not extern __shared__ (dynamic). Set to 0 matching the other two
  test launches.

cargo check + all 3 GPU oracle tests still pass.
2026-05-04 02:04:14 +02:00
jgrusewski
91b48bc7a5 feat(sp11): A1 — three canary producer kernels (no behavior change)
Adds val_sharpe_delta + saboteur_engagement + reward_component_mag_ratio
GPU producers for the SP11 reward-as-controlled-subsystem chain. Each is
a single-block producer chained with apply_pearls_ad_kernel for Pearls
A+D smoothing per pearl_first_observation_bootstrap.md +
pearl_wiener_optimal_adaptive_alpha.md. All three write to slots in
[350..360) which no consumer reads yet — Layer A is additive; consumer
migration lands atomically in Layer B.

A1.1 — val_sharpe_delta_compute_kernel.cu
  Two-pass: writes raw delta + (delta - prev_delta_ema)^2 to scratch.
  Chained Pearls A+D (n_slots=2) → ISV[VAL_SHARPE_DELTA_EMA_INDEX=350,
  VAL_SHARPE_VAR_EMA_INDEX=351]. Host writes val_sharpe to mapped-pinned
  history[1]; rotation handled in training_loop.rs at val emit boundary
  (a literal already-computed value — no host-side compute, no htod_copy).

A1.2 — saboteur_engagement_compute_kernel.cu
  Per-bar |Δreward| > 0.01 × ISV[PNL_REWARD_MAGNITUDE_EMA_INDEX] check
  with block tree-reduce (no atomicAdd per feedback_no_atomicadd). The
  per-bar Δreward signal is produced by experience_env_step's saboteur
  perturbation site as `traded × |reward| × max(|eff_spread − 1|,
  |eff_slip − 1|)` — a structural proxy for the cost-differential the
  saboteur imposed on bars where the model traded. Single kernel-side
  emit (no parallel reward computation), per spec §3.3.1.
  Chained Pearls A+D → ISV[SABOTEUR_ENGAGEMENT_RATE_INDEX=358].

A1.3 — reward_component_mag_ratio_compute_kernel.cu
  Reads ISV[REWARD_POPART_EMA_INDEX..+6) (the SP4 reward-component
  magnitude EMAs), normalises to ratios, and mirrors popart magnitude
  into scratch[6] as a side-output. ONE non-pointer parameter
  (popart_ema_base_slot) — no _unused param per feedback_no_stubs.
  Two chained Pearls A+D launches:
    n_slots=6 → ISV[REWARD_COMPONENT_MAG_RATIO_BASE..+6)
    n_slots=1 → ISV[PNL_REWARD_MAGNITUDE_EMA_INDEX=359]
  (slots non-contiguous: 352..358 then 359.)

Wire-up (per feedback_wire_everything_up):
- 3 cubin entries appended to crates/ml/build.rs
- 3 kernel handles + val_sharpe_history_pinned (MappedF32Buffer[2]) +
  saboteur_delta_reward dev-ptr cache fields on GpuDqnTrainer
- 3 launchers (launch_sp11_*) + 1 setter (set_sp11_saboteur_delta_reward_buf)
- saboteur_delta_reward_per_sample buffer field on GpuExperienceCollector
- experience_env_step kernel signature extended with the new buffer arg;
  every call site in the same commit per feedback_no_partial_refactor
- training_loop.rs init wires collector→trainer setter; val emit boundary
  invokes launch_sp11_val_sharpe_delta_compute; per-epoch metrics block
  invokes launch_sp11_mag_ratio_compute then
  launch_sp11_saboteur_engagement_compute (mag_ratio first so the
  signal-relative threshold base is populated before the saboteur reader)
- SP5_SCRATCH_TOTAL grown 266 → 276 (10 new scratch slots: 2+1+7)
- docs/isv-slots.md SP11 section updated to reflect A1 producers

3 GPU oracle tests in crates/ml/tests/sp11_producer_unit_tests.rs
pass on RTX 3050 Ti via MappedF32Buffer fixtures (zero htod_copy /
dtoh_sync_copy / alloc_zeros — feedback_no_htod_htoh_only_mapped_pinned
compliant).

Note on Step 8a path: the plan offered two routes for the saboteur
Δreward producer — in-kernel diff emission OR a small dedicated
reader-of-existing-buffers. The existing reward path emits ONE reward
(not both with/without), so the dedicated-reader alternative was
infeasible. The in-kernel emission landed as a small write site at the
END of experience_env_step (after total_reward_per_sample is finalised),
threading saboteur_eff_spread/saboteur_eff_slip from the perturbation
site forward to the END via stack vars. Single new kernel parameter,
single new GPU-only buffer, single existing call site updated.

Spec: docs/superpowers/specs/2026-05-04-sp11-reward-as-controlled-subsystem.md §5
Plan: docs/superpowers/plans/2026-05-04-sp11-reward-as-controlled-subsystem.md (Task A1)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-04 01:40:38 +02:00
jgrusewski
201b59dfbc fix(sp11): A0 sweep — eliminate remaining stale wiener-buffer refs
A0 follow-up (1e5a65912) fixed two stale refs from code-quality review.
Implementer surfaced 3 more accumulated across SP4/SP5/Layer-D:

- :537 sp4_wiener_state — claimed 543 floats with growth chain 141→207→213→543
- :974 sp5_pnl_aggregation — claimed SP5_WIENER_TOTAL_FLOATS=573 (post-D2 stale)
- :989 sp5_health_composition — same =573 stale
- :1009 sp5_training_metrics_ema — claimed =582 (post-D3 stale)

All four converted to formula form (71 + SP5_PRODUCER_COUNT) × 3 matching
A0 fix-up pattern. Drops brittle growth chains in favor of a derivable
formula. Audit doc entry added per Invariant 7. cargo check + state_reset
_registry tests 4/4 pass.
2026-05-04 01:21:41 +02:00
jgrusewski
1e5a65912c fix(sp11): A0 follow-up — update stale wiener-buffer + isv-slots header
Code-quality review on bf3a32d63 found two stale references that need
SP11 numbers:

- training_loop.rs:6672 + state_reset_registry.rs:891 — sp5_wiener_state
  comments referenced the post-SP4/post-SP8 buffer sizes (543, 681);
  post-SP11 is (71 + SP5_PRODUCER_COUNT) × 3 = 771 floats. Replaced the
  literal sizes with formula form citing SP5_PRODUCER_COUNT directly so
  this drifts less in the future.

- docs/isv-slots.md header — "Current ISV_TOTAL_DIM" said 171 (post-SP4
  Task A1) while actual is 360. Updated header; SP11 section already
  appended at the end of the file.

No logic changes. Cargo check + sp5_isv_slots / state_reset_registry
tests still pass.
2026-05-04 01:11:11 +02:00
jgrusewski
bf3a32d63a feat(sp11): A0 — allocate 20 ISV slots [340..360) + 20 reset entries
Pure infrastructure. No producer kernels, no consumer reads. Existing
training paths trace identically because no consumer reads slots [340..360)
yet. Layout-fingerprint bumped to ISV_TOTAL_DIM=360.

Spec: docs/superpowers/specs/2026-05-04-sp11-reward-as-controlled-subsystem.md
2026-05-04 00:55:07 +02:00
jgrusewski
e580c1388c fix(log): epoch summary Return uses scientific notation, fixes overflow display
`total_return` from financials.rs:80-94 is log-space cumulative growth
across every per-bar step_return. With ~4M step_returns in a fold-
convergence run, even sub-bps positive bars compound to absurd
magnitudes (observed: 1.93e37%) when displayed as `{:+.2}%`. Math is
correct; display needs scientific notation.

Surfaced in T10 train-multi-seed-xkjkb seed-0 ep3 epoch summary while
SP10 chain validates structural fixes. Cosmetic-only change; no
training-path impact. Audit doc updated with Cosmetic 38.1 entry.
2026-05-03 23:31:11 +02:00
jgrusewski
a5457b0dc7 Revert "fix(log): epoch summary Return uses scientific notation, fixes overflow display"
This reverts commit 368454788a.
2026-05-03 23:28:17 +02:00
jgrusewski
368454788a fix(log): epoch summary Return uses scientific notation, fixes overflow display
`total_return` from financials.rs:80-94 is the log-space cumulative growth
across every per-bar step_return: `exp(sum(ln(max(1+r, 1e-10)))) - 1`.

With ~4M per-bar step returns in a fold-convergence run, even sub-bps
positive bars compound to absurd magnitudes (observed: 1.93e37%) when
displayed as `{:+.2}%`. The math is correct; the display is broken.

Switching to `{:+.3e}%` shows the same magnitude compactly across the
full dynamic range without hiding the number. Comment added explaining
the underlying compute's HFT-inappropriate semantic so a future reader
knows the value is correct-but-meaningless rather than buggy.

Surfaced in T10 train-multi-seed-xkjkb seed-0 ep3 epoch summary while
the SP10 chain validates structural fixes. Cosmetic-only change; no
training-path impact.
2026-05-03 23:27:34 +02:00
jgrusewski
920a2d0219 fix(sp10): unconditional Thompson selector + ISV-driven temperature (Fix 38)
T10 train-multi-seed-khr7c (commit 8a25b330f, post-Fix-37) showed val-Flat-
collapse persisting at the eval-side selector despite all SP9 controller
fixes — dir_entropy=0 / trade_count=1 in 214,654 bars because
experience_action_select branched on eval_mode and used argmax(E[Q]) at
eval. With Hold's E[Q] ≈ 0 and directional E[Q] = ε (small edge minus tx
costs), argmax wins Hold deterministically every bar.

Per pearl_thompson_for_distributional_action_selection (amended): the
rollout SELECTOR is unconditional Thompson at all times (training AND
eval); argmax is reserved for the Bellman TARGET Q computation only
(DDQN target). Per pearl_controller_anchors_isv_driven: the temperature
on the Thompson sample is ISV-driven from the SP9 intent_eval_divergence
canary. Per pearl_blend_formulas_must_have_permanent_floor: MIN_TEMP=0.5
is the permanent-stochasticity floor — the eval selector is NEVER fully
deterministic.

Atomic commit per feedback_no_partial_refactor:

* 1 new ISV slot @ [339..340) (EVAL_THOMPSON_TEMP_INDEX); ISV_TOTAL_DIM
  339 → 340; SP5_PRODUCER_COUNT 165 → 166; layout fingerprint updated
* 1 new scratch slot @ [265..266) (SCRATCH_SP10_THOMPSON_TEMP);
  SP5_SCRATCH_TOTAL 265 → 266
* intent_eval_divergence_compute_kernel.cu extended with 2 params
  (divergence_target_isv_index, scratch_temp_idx) + new compute branch
  temp = clamp(divergence/div_target, 0.5, 2.0); existing scratch_idx
  renamed scratch_div_idx for semantic clarity
* experience_action_select: if (eval_mode) { argmax(E[Q]) } DELETED;
  unconditional temperature-blended Thompson installed:
  q_eff[d] = E[Q][d] + temp · (q_sample[d] − E[Q][d]); defensive clamp
  to [0.5, 2.0] for cold-start before producer first observation. Other
  branches (mag/ord/urg) keep their existing eps-greedy/Boltzmann logic
  per pearl_thompson §3 exemption
* state_layout.cuh: new ISV_EVAL_THOMPSON_TEMP_IDX 339 define
* gpu_dqn_trainer.rs::launch_intent_eval_divergence_compute extended
  with 2 kernel args + second apply_pearls_ad_kernel chain to smooth
  the temperature into ISV[339]
* New FoldReset entry sp10_eval_thompson_temp + dispatch arm in
  reset_named_state writing sentinel 0; Pearl A's first-observation
  replacement fires on the new fold's first producer launch
* Test renamed test_eval_action_select_eval_argmax_picks_best →
  test_eval_action_select_thompson_picks_proportionally; ISV buffer
  setup with EVAL_THOMPSON_TEMP_INDEX=1.0 (pure Thompson); assertions
  updated to ≥ 70% best-direction wins (was ≥ 99% under deterministic
  argmax) and < 100% (selector is sampling)
* Pearl pearl_thompson_for_distributional_action_selection §4 amended;
  MEMORY.md index entry updated
* Audit doc Fix 38 entry

Verification:
* SQLX_OFFLINE=true cargo check -p ml — clean (only pre-existing 18
  warnings; no new errors or warnings introduced by Fix 38)
* SQLX_OFFLINE=true cargo test -p ml --lib state_reset — 4/4 pass
  including contract test every_fold_and_soft_reset_entry_has_dispatch_arm
* SQLX_OFFLINE=true cargo test -p ml --lib sp5_isv_slots — 10/10 pass
  including new sp10_thompson_temp_slot_above_sp9_block
* SQLX_OFFLINE=true cargo test -p ml --lib test_eval_action_select_thompson —
  pass (RTX 3050 Ti local; τ=1.0 with clear Q gap → P(Long) ≥ 0.70 < 1.0)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-03 22:42:25 +02:00
jgrusewski
8a25b330fc fix(sp9): targets as Invariant-1 anchors + divergence sentinel handling
Two targeted fixes to the SP9 Kelly cold-start warmup floor (Fix 37,
commit `48a8b9ee7`) for quirks observed in smoke-test-wrwkz on a
5-epoch L40S smoke. Atomic per `feedback_no_partial_refactor`.

**Quirk 1 — EMA target saturation:** ep1 HEALTH_DIAG showed
`stat_count_tgt=419 div_tgt=105002 temp_tgt=1.0 conf [stat=1.000
bhv=0.333 tmp=1.000] floor=0.0`. Pearl A sentinel-bootstrap on the
3 EMA target updaters (`kelly_*_target_ema_kernel.cu`) caused the
first observation to replace the sentinel directly, so
`target = first_obs`, `current/target = 1.0`, `confidence = 1.0`,
`floor = base × (1 − 1.0) = 0` — defeating the cold-start mechanism.

The principled fix per `feedback_isv_for_adaptive_bounds.md`:
"sufficient" is defined in absolute terms via Invariant-1 numerical
anchors. The 3 target ISV slots become constructor-written constants
(written ONCE in trainer constructor, identical pattern to existing
`config.cql_alpha → ISV[CQL_ALPHA_INDEX=48]` from Plan 1 Task 12).

  - ISV[KELLY_SAMPLE_COUNT_TARGET_INDEX=333] = 100.0 (trades)
  - ISV[KELLY_DIVERGENCE_TARGET_INDEX=334]   = 2.0   (ratio)
  - ISV[KELLY_TEMPORAL_TARGET_INDEX=335]     = 5.0   (epochs)

**Quirk 2 — divergence ratio explosion:** ep1 showed
`divergence=70005`. Algebraically `intent_f / max(eval_f, 1e-6) =
0.07 / 1e-6 = 70 000` because `ISV[EVAL_DIST_F_INDEX=338]` was still
at Pearl A sentinel 0 before the first val window populated it.
Algebraically the warmup-floor kernel still derived
`behavioral_conf = 0` (correct semantic), but the synthetic 70 000
in HEALTH_DIAG masked the real signal flow.

Fix: explicit sentinel detection in
`intent_eval_divergence_compute_kernel.cu`:

  if (eval_f < SENTINEL_THRESHOLD=1e-5)
    divergence = SENTINEL_DIVERGENCE=1e6  // forces behavioral_conf=0
  else
    divergence = intent_f / eval_f

Same `behavioral_conf = 0` outcome but with explicit provenance —
HEALTH_DIAG now reads `divergence=1e6` until eval_f matures.

**Atomic structure:**

- DELETE 3 EMA target updater kernels (`.cu` files)
- DELETE 3 entries from `crates/ml/build.rs::kernels_with_common`
- DELETE 3 cubin static byte arrays + 3 struct fields + 3 cubin
  loaders + 3 fields in trainer construction tuple in
  `gpu_dqn_trainer.rs`
- DELETE 3 launches in `launch_sp9_kelly_warmup_floor` (chain
  shrinks 5 → 2: q_var_mag_ema + main warmup-floor)
- DELETE 3 scratch slots; SP5_SCRATCH_TOTAL 268 → 265;
  SCRATCH_SP9_EVAL_DIST_BASE slides 265 → 262
- ADD constructor-write of 3 Invariant-1 anchors (100.0, 2.0, 5.0)
  immediately before layout-fingerprint write
- UPDATE 3 dispatch arms in `reset_named_state` to rewrite the
  Invariant-1 anchors at fold boundary (NOT sentinel 0) — these
  are constants, not stateful EMAs
- UPDATE 3 registry descriptions to reflect Invariant-1 anchor
  semantic + smoke-test-wrwkz evidence
- UPDATE `intent_eval_divergence_compute_kernel.cu` with
  sentinel-detect branch
- ISV slot layout UNCHANGED (3 target slots @ ISV[333..336)
  remain); Wiener-buffer linear span (`SP5_PRODUCER_COUNT=165`)
  UNCHANGED — 3 wiener triples for deleted producers become
  reserved-unused like Pearl 6's [525..543) carve-out
- audit doc Fix 37.1 entry with full provenance + smoke evidence

**Verification:**

- `SQLX_OFFLINE=true cargo check -p ml` — clean (only pre-existing
  18 warnings; no new errors or warnings).
- `SQLX_OFFLINE=true cargo test -p ml --lib state_reset` — 4/4 pass
  including `every_fold_and_soft_reset_entry_has_dispatch_arm`.
- `SQLX_OFFLINE=true cargo test -p ml --lib sp5_isv_slots` — 9/9
  pass including `sp9_slots_contiguous_above_sp8_block`.

**Expected smoke signature post-fix:**

- floor: starts ≈ base_floor × 1.0, decays as confidence accumulates
- divergence: 1e6 until first val window, small (≤ 5) afterward
- conf: stat=count/100, bhv=0 until eval_dist matures, tmp=ep/5
- combined_conf reaches 1.0 only when at least one axis genuinely
  matures (typically temporal at epoch 5 in fold 0)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-03 21:36:11 +02:00
jgrusewski
48a8b9ee7c fix(sp9): Kelly cold-start ISV-driven warmup floor (Fix 37)
Per pearl_cold_start_exit_signal_or.md + pearl_controller_anchors_isv_driven.md:
the Kelly cap's `warmup_floor` and its release condition were both
regime-encoded constants. Single-axis statistical cold-start exit
(`total_trades >= 10` in trade_physics.cuh::kelly_position_cap) created
a chicken-and-egg deadlock: cap closed → no trades → no Kelly samples →
cap stays closed. T10 wsnc6 ep1-3 evidence (post-Fix 36):
intent_dist_f rising to 0.47 while eval_dist_f pinned to 0.00 with
kelly_f=0 across all epochs — train-vs-eval divergence as direct
symptom of the cold-start deadlock.

SP9 lifts the floor and its release condition fully onto ISV. The exit
condition is OR'd across statistical / behavioral / temporal axes per
the pearl — any single axis firing exits cold-start.

Atomic commit per feedback_no_partial_refactor:

- 9 new ISV slots @ [330..339):
  - KELLY_WARMUP_FLOOR_INDEX (330) — adaptive floor consumed by
    unified_env_step_core
  - Q_VAR_MAG_EMA_INDEX (331) — historical EMA baseline for the
    self-relative `base_floor` ratio (eliminates 0.5 hardcoded
    half-Kelly)
  - INTENT_EVAL_DIVERGENCE_INDEX (332) — behavioral-axis numerator
  - 3 EMA targets (sample_count / divergence / temporal)
  - 3 EVAL_DIST_{Q,H,F}_INDEX — replaces DtoH
    read_eval_intent_magnitude_distribution()
- ISV_TOTAL_DIM 330 → 339; SP5_PRODUCER_COUNT linear span 156 → 165
- 9 new scratch slots @ [259..268); SP5_SCRATCH_TOTAL 259 → 268
- 7 new producer kernels (single-block cold-path, chained through
  apply_pearls_ad_kernel for Pearl A bootstrap + Pearl D Wiener-α):
  - eval_intent_dist_compute_kernel.cu — GPU reduction of
    intent_mag_buf, replaces DtoH path per
    feedback_no_cpu_compute_strict.md
  - intent_eval_divergence_compute_kernel.cu
  - q_var_mag_ema_compute_kernel.cu
  - kelly_sample_count_target_ema_kernel.cu
  - kelly_divergence_target_ema_kernel.cu
  - kelly_temporal_target_ema_kernel.cu
  - kelly_warmup_floor_compute_kernel.cu — main producer combining
    all 8 ISV inputs
- consumer migration in trade_physics.cuh::unified_env_step_core:
  health_safety_sp9 = fmaxf(health_safety_sp5,
                            isv[SP9_KELLY_WARMUP_FLOOR_INDEX])
  threading through apply_kelly_cap's health_floor parameter; zero
  sentinel → no-op via fmaxf so existing path's behavior is preserved
- DELETE read_eval_intent_magnitude_distribution() in
  gpu_backtest_evaluator.rs (was DtoH read_all + host loop) per
  feedback_no_htod_htoh_only_mapped_pinned.md; replaced by
  intent_mag_dev_ptr_and_n() GPU accessor; metrics.rs:908 consumer
  migrated from DtoH to launch + ISV mapped-pinned read
- 9 new state-reset registry FoldReset entries + 9 dispatch arms in
  reset_named_state (Pearl A bootstrap on first observation)
- HEALTH_DIAG sp9_kelly_warmup line emits floor + divergence + 3
  confidence axes + 3 EMA targets per feedback_no_hiding
- audit doc Fix 37 entry with full provenance, files touched, pearls
  applied, verification

Constants: only KELLY_FLOOR_MIN_RATIO=0.25, KELLY_FLOOR_MAX_RATIO=1.0,
EPS_DIV=1e-6 — Invariant 1 numerical-stability anchors per
feedback_isv_for_adaptive_bounds.md. All thresholds, targets, and
the floor itself are signal-driven via ISV.

Pre-existing 18 cargo warnings unchanged. State-reset contract test
`every_fold_and_soft_reset_entry_has_dispatch_arm` passes for all 9
new entries; SP5 ISV slot layout test
`sp9_slots_contiguous_above_sp8_block` passes;
`SQLX_OFFLINE=true cargo check -p ml` clean.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-03 20:56:34 +02:00
jgrusewski
e0dbae3c99 fix(sp7): ISV-driven MAX_BUDGET via GPU train_active_frac canary (Fix 36)
Per pearl_controller_anchors_isv_driven.md: Fix 35 (CQL formula direction
flip) is necessary but insufficient — `const float MAX_BUDGET = 1.0f;` at
line 113 of loss_balance_controller_kernel.cu is regime-encoded the same
way the original CQL target_ratio formula was. Under healthy training
the cap is fine; under val-Flat-collapse it lets the controller saturate
budgets to 1.0 while the model is regressing into Flat.

The pearl prescribes the structural fix: pick the canary that fires
under the failure mode → train_active_frac (Long+Short / total during
training rollout). Lift it onto ISV with Pearls A+D smoothing; route it
through a producer kernel that derives per-(head, branch) cap via linear
interpolation FLOOR + active_frac × (CEIL - FLOOR); read the cap from
ISV in the controller kernel (no more hardcoded 1.0).

Atomic commit per feedback_no_partial_refactor:

- new kernel: train_active_frac_compute_kernel.cu — single-thread
  reduction over monitoring_summary[5..17), writes scratch[250]; chained
  apply_pearls_ad → ISV[TRAIN_ACTIVE_FRAC_INDEX=321]
- new kernel: loss_balance_max_budget_compute_kernel.cu — 8 threads
  (2 heads × 4 branches), reads ISV[TRAIN_ACTIVE_FRAC_INDEX], writes
  scratch[251..259); chained apply_pearls_ad ×8 →
  ISV[LB_MAX_BUDGET_{CQL,C51}_BASE..+4)
- consumer: loss_balance_controller_kernel.cu — replace
  `const float MAX_BUDGET = 1.0f;` with per-(head, branch) ISV reads,
  defensive Pearl A bootstrap clamp
- 9 new ISV slots @ [321..330); ISV_TOTAL_DIM 321 → 330;
  SP5_PRODUCER_COUNT linear span 147 → 156
- 9 new scratch slots @ [250..259); SP5_SCRATCH_TOTAL 250 → 259
- delete CPU train_active_frac compute (training_loop.rs:3392-3396) per
  feedback_no_cpu_compute_strict; delete host field
  `last_train_active_frac: f32`; replace with accessor reading from ISV
- 3 new state-reset registry entries (FoldReset; Pearl A bootstrap on
  first observation) + dispatch arms in reset_named_state
- audit doc: Fix 36 entry with full provenance, files touched, pearls
  applied, verification

Pre-existing 18 cargo warnings unchanged. State-reset contract test
`every_fold_and_soft_reset_entry_has_dispatch_arm` passes for all 3 new
entries; SP5 ISV slot layout test
`sp8_max_budget_slots_contiguous_and_above_activation_block` passes;
`SQLX_OFFLINE=true cargo check -p ml` clean.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-03 19:26:01 +02:00
jgrusewski
65c3083dec fix(sp7): flip CQL target_ratio direction — death spiral on magnitude
`target_ratio[CQL][b] = ANCHOR_CQL_RATIO * (1 - flatness[b])` had the
sign inverted: it pushed CQL HIGH when Q was flat (the collapse state)
and LOW when Q had variance. Per pearl_2_budget_kernel.cu, `flatness =
var_q / σ²`, so flatness HIGH means Q has variance — exactly when
overconfidence-risk-driven CQL pressure should kick in.

Symptom (T10-v3 train-multi-seed-x7sl2 logs): Once IQN Fix 34 woke
IQN-mag/ord/urg branches and produced real Q-targets, the controller's
inverted formula sent cql_budget to MAX_BUDGET=1.0 saturation on every
branch, the conservative pull kept Q flat, the model collapsed to
single-Flat-action eval (val_active_frac=0, dir_entropy=0,
trade_count=1, sharpe=0).

Fix is one operational character: `(1 - flatness)` → `flatness`. C51
formula was already correctly aligned (`flatness * ANCHOR_C51_RATIO`)
and unchanged.

Per pearl_controller_anchors_isv_driven.md: the inverted formula was
masked for months because the IQN-dead regime (Fix 34) suppressed
cql_raw on mag/ord/urg, never letting the controller engage with the
inverted target. Fixing the IQN regime exposed the dormant formula bug.

ANCHOR_CQL_RATIO=2.0 and MAX_BUDGET=1.0 remain hardcoded; Fix 36 will
make those ISV-driven via a GPU train_active_frac canary signal per
the pearl's "pick the canary that fires under the pathology" rule.
2026-05-03 19:00:26 +02:00
jgrusewski
9b5296b2f0 fix(iqn): set_cached_target_h_s2 per branch — fixes silent 3/4 IQN branch dropout
execute_training_pipeline consumes cached_target_h_s2_ptr via .take(), so
the SP6 Pearl 5 per-branch loop (4 sequential iqn calls per step) only
worked for branch 0. Branches 1, 2, 3 saw cached_ptr=None, returned a
"non-fatal" Err logged as a warning, and silently skipped apply_iqn_
trunk_gradient — only the direction branch's IQN quantile signal ever
reached the trunk, for months.

Surfaced in T10-retry train-multi-seed-ksjcm logs as repeated:
  WARN: IQN parallel branch 1 step failed (non-fatal):
  WARN: IQN parallel branch 2 step failed (non-fatal):
  WARN: IQN parallel branch 3 step failed (non-fatal):
    cached_target_h_s2_ptr is None.

Pre-existing since SP6 Pearl 5 (P4.T3-era multi-quantile IQN per-branch
τ schedules) — masked by the non-fatal warning classification.

Likely explains:
  - cql_mag persistence at SP7 smoke (cql_mag=0.07 vs cql_dir=1.0):
    CQL was the only learning signal mag had because IQN-mag was dead.
  - SP7 c51 1000:1 controller suppression on mag/ord/urg may stabilize
    at non-collapse values once IQN signal returns to those branches.

Fix is local: re-set cached ptr inside both 4-branch loops (parallel arm
near line 2123, sequential arm near line 2308). The ptr is the same
value (target_h_s2 is per-step, not per-branch), but the .take()
contract requires set-per-call. Defensive single-shot semantic preserved
— if a future bug skips the set, IQN errors loud rather than reusing
stale ptr.

Per feedback_no_partial_refactor: SP6 changed the call pattern 1→4 per
step but didn't migrate the cache contract. Per feedback_no_hiding: the
non-fatal classification hid the structural bug; escalation to hard
error deferred to next commit after post-fix T10 validates the warnings
disappear.

Audit doc updated with Fix 34 entry.
2026-05-03 18:20:33 +02:00
jgrusewski
e3d0829680 fix(build): cargo:rerun-if-env-changed=CUDA_COMPUTE_CAP for cubin arch
Without this trigger, cargo treated CUDA_COMPUTE_CAP-driven cubin
compilation as cached output of a non-tracked env var. The cargo-target
PVC is shared across H100 (sm_90) and L40S (sm_89) training jobs, so
swapping --gpu-pool between archs left stale cubins from the previous
build cached for any future sm_X variation.

Symptom (T10 train-multi-seed-rn559 today):
  Failed to create DQN: rmsnorm cubin load: DriverError(
    CUDA_ERROR_NO_BINARY_FOR_GPU,
    "no kernel image is available for execution on the device")

The training pod scheduled on L40S (sm_89), the binary cache served
sm_90 cubins from a prior H100 build, and the rmsnorm cubin had no
sm_89 entrypoint.

Fix is one line: tell cargo to invalidate when CUDA_COMPUTE_CAP changes.
First post-fix build will rebuild all cubins (cargo conservatively
reruns when a new rerun-if-env-changed trigger is added without prior
state). Subsequent builds rebuild only on actual env changes.

Generalises the same lesson as the recent SP7 host-branch-in-captured-graph
fix: env-var-conditional code that doesn't declare its dependencies
freezes at first observation regardless of runtime input.
2026-05-03 18:05:41 +02:00
jgrusewski
07f5ed5d74 fix(sp7): GPU dispatch for cql/c51 budget — eliminate capture-time host-branch freeze
The SP7 controller wrote real budgets to ISV[BUDGET_CQL_BASE/C51_BASE] and
the activation flag correctly transitioned 0→1, but downstream SAXPY ops
still saw exactly 0.02/0.05 every step. Root cause: compute_adaptive_budgets
ran host-side Rust with `if cql_active >= 0.5 { real } else { bootstrap }`,
captured into the aux_child CUDA Graph at step 0 of each fold (when
cql_active is FoldReset sentinel 0.0). The bootstrap branch resolves to
literal 0.02/0.05 and freezes into kernel arg buffers; ~1000 graph replays
per fold use frozen scalars regardless of runtime ISV state.

Same disease as SP4 host-side EMA elimination 2026-05-01. Fix:

- New consume_lb_budget_kernel.cu (8 threads, 1 block): reads ISV slots
  for activation flag + controller budget per (head, branch); applies
  if/else dispatch on-device; writes trunk_mean + per-branch correction
  to mapped-pinned scratch buf [10] = (cql_trunk + cql_corr×4 + c51_trunk
  + c51_corr×4). Same cubin houses dqn_{scale,saxpy}_f32_dev_ptr_kernel
  variants reading alpha from a device pointer (no kernel-arg freeze).
- Buffer + launcher + cubin loading + 4 dev-ptr accessor methods
  in gpu_dqn_trainer.rs.
- apply_c51_budget_scale / apply_cql_saxpy + per-branch variants take
  alpha_dev_ptr: u64 instead of scalar f32. The "skip when ≈ 1.0"
  optimization is dropped — the value lives on-device. Existing scalar
  dqn_{saxpy,scale}_f32_kernel are NOT modified — they remain reused
  by distill, VSN dW dilution, etc.
- compute_adaptive_budgets refactored to launch the dispatch kernel
  inline (captured along with consumers; replay-time fresh values
  every step) and stop returning host-resolved CQL/C51 scalars.
  IQN/ENS keep their host-side resolution (out-of-scope per change
  scope — no activation-flag dispatch).
- HEALTH_DIAG reads from lb_budget_effective_buf via new accessor
  methods on FusedTrainingCtx; dead caches on GpuDqnTrainer
  (last_{cql,c51}_budget_eff / _per_branch) deleted.
- Audit doc Fix 33. Memory pearl out-of-tree.

Bootstrap byte-equivalence preserved: kernel-arg constants
cql_bootstrap=0.02 / c51_bootstrap=0.05 remain byte-identical to the
prior host-side CQL_BOOTSTRAP_BUDGET / C51_BOOTSTRAP_BUDGET literals
and to loss_balance_controller_kernel.cu's COLD_START_FLOOR_* anchors.

Files: consume_lb_budget_kernel.cu (new), build.rs, gpu_dqn_trainer.rs,
fused_training.rs, training_loop.rs, dqn-wire-up-audit.md.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-03 16:54:36 +02:00
jgrusewski
14af4854fb fix(merge): resolve sp5→main merge fixups — DevicePtrMut import + adam_step 7-arg signature
After sp5 merge with -X theirs, two compile errors needed manual fix:
- gpu_her.rs lost the DevicePtrMut trait import
- gpu_tlob.rs Fix 20 regression test used the 4-arg adam_step signature
  before sp5's Pearl 4 added β1/β2/ε params.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-03 16:11:23 +02:00
jgrusewski
aef2003db2 Merge: sp5-magnitude-differentiation → main (SP4+SP5+SP6+SP7 + observability + ISV bus fix)
Conflicts auto-resolved with -X theirs strategy. sp5 has more
evolved MappedF32Buffer API + more recent work; main's via-pinned
cleanup landed in parallel as a lateral migration. Taking sp5's
side preserves the cleaner consolidated upload pattern.
2026-05-03 16:06:44 +02:00
jgrusewski
ad4a2de12a Merge: fix(tlob) align dW layout + fuse Q/K/V SGEMMs
# Conflicts:
#	crates/ml/src/cuda_pipeline/gpu_tlob.rs
2026-05-03 15:59:57 +02:00
jgrusewski
32ccf963dc Merge: refactor delete via_pinned helpers, migrate 22 callers 2026-05-03 15:59:31 +02:00