jgrusewski 1dc1f3563c refactor(ml-alpha): consolidate trainers — stacked is THE perception trainer
The merged Mamba2 -> CfC -> heads design from the 2026-05-16 spec
amendment supersedes the CfC-alone path. Removing the old CfC-only
PerceptionTrainer and renaming the stacked Mamba2CfcTrainer to
PerceptionTrainer (one trainer, clean naming).

Deletions:
  - src/trainer/perception.rs (the OLD CfC-only trainer)
  - tests/perception_overfit.rs (CfC-only smoke)
  - tests/perception_debug_dump.rs (CfC-only trajectory print)
  - tests/stacked_overfit.rs (replaced by perception_overfit pointing
    at the renamed module)

Renames:
  - src/trainer/stacked.rs -> src/trainer/perception.rs
  - Mamba2CfcTrainer -> PerceptionTrainer
  - Mamba2CfcTrainerConfig -> PerceptionTrainerConfig
  - tests/stacked_overfit.rs content -> tests/perception_overfit.rs

CLI rewrite:
  examples/alpha_train.rs now drives the stacked PerceptionTrainer.
  Per-step inputs are sequences (Vec<Mbp10RawInput>) of length
  seq_len; labels come from the LAST position of the window
  (per-horizon). Flags: --seq-len, --mamba2-state-dim, --lr-cfc,
  --lr-mamba2 (no more --n-hid since hidden_dim is fixed at 128 to
  match Mamba2 and CfC by design).

Test status:
  - 64 GPU tests pass on local sm_86 (31 lib unit + 33 integration)
  - synthetic-overfit (rebranded perception_overfit): 250 steps,
    initial=0.5951 -> final=0.1917 (68% drop, well above 40% gate)
  - All bit-equiv / finite-diff / invariant tests still PASS
  - One ignored test: the gate_artifact integration (waiting for
    cluster-trained summary inputs)

The cluster gate (Task 18) now compares stacked-trained AUC vs a
Mamba2-baseline AUC (TBD: stacked vs a simpler "Mamba2 only" config
or an external reference baseline).

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-16 23:08:25 +02:00

Foxhunt

Production HFT trading system in Rust.

Architecture

The workspace contains 32 crates organized as follows:

Core Libraries (16)

Crate Purpose
trading_engine Order processing, FIX 4.4, IB TWS, SIMD, RDTSC timing
risk VaR, Kelly, circuit breakers, kill switches, compliance
risk-data Risk data types and shared structures
trading-data Trading data types
ml DQN Rainbow, PPO, TFT, Mamba2, ensemble inference
ml-data ML data types and feature definitions
data Market data ingestion and storage
backtesting Replay engine, strategy tester
adaptive-strategy Ensemble execution, microstructure analysis
common Shared types, resilience, error handling
storage S3 and local model storage
model_loader Model serialization and loading
market-data Market data feed handlers
database PostgreSQL access layer (SQLx)
config Configuration management
tli CLI commands and tooling

Services (8)

Service Purpose
backtesting_service gRPC backtesting service
broker_gateway_service FIX routing, broker connectivity
trading_service Core trading operations
ml_training_service Model training orchestration
data_acquisition_service Market data acquisition
trading_agent_service Autonomous trading agents
api_gateway gRPC API gateway with auth
web-gateway Axum REST + WebSocket gateway

Frontend

web-dashboard/ -- React 19 + TypeScript + Vite + TradingView charts.

Building

# Check compilation (no PostgreSQL required)
SQLX_OFFLINE=true cargo check --workspace

# Run tests for a specific crate
SQLX_OFFLINE=true cargo test -p <crate> --lib

# Clippy
SQLX_OFFLINE=true cargo clippy --workspace

ML Models

Four production model architectures on Candle v0.9.1 with CUDA:

  • DQN Rainbow -- Deep Q-Network with prioritized replay, dueling heads, noisy nets
  • PPO -- Proximal Policy Optimization with GAE and LSTM policies
  • TFT -- Temporal Fusion Transformer for multi-horizon forecasting
  • Mamba2 -- State space model for sequence prediction

Each model has a standalone trainer and a UnifiedTrainable adapter for the hyperopt pipeline.

Infrastructure

  • Git: Gitea at git.fxhnt.ai (Tailscale-only), Scaleway DEV1-S
  • Observability: OpenTelemetry OTLP (env OTEL_EXPORTER_OTLP_ENDPOINT)
  • Database: PostgreSQL with SQLx offline mode for CI

License

Proprietary. All rights reserved.

Description
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