jgrusewski 5191fa022a perf(ml): replace remaining CPU tensor allocations with GPU-native ops ...

Eliminate all remaining from_vec(vec![const; N]) patterns and CPU
tensor roundtrips in the training hot path:

- gamma discount: from_vec → Tensor::full (DQN + distributional C51)
- C51 atoms: from_vec(computed Vec) → arange+affine, 4 instances
  across forward pass and C51 loss paths (online/standard/double-DQN)
- IQN cosine embedding indices: from_vec → arange+reshape
- IQN uniform quantiles: from_vec → arange+affine (τ_i = (i+0.5)/N)
- PPO clip epsilon: from_vec+ones+sub/add+tensor_clamp → scalar clamp
  (eliminates 6 intermediate tensor allocations, 2 call sites)
- Dead neuron detection: flatten+to_vec1+CPU loop → abs().le().sum_all()
  (single scalar per parameter tensor instead of full weight transfer)

548 tests pass (350 ml-dqn + 198 ml-ppo), ml crate compiles clean.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

2026-03-08 23:22:39 +01:00

..

backtesting

docs: create/update README.md for all 17 crates

2026-03-01 22:47:39 +01:00

common

feat(infra): QuestDB metrics sink + monitoring network policies

2026-03-08 02:42:53 +01:00

config

refactor: rename JWT issuer foxhunt-api-gateway → foxhunt-api, drop compat aliases

2026-03-05 00:22:04 +01:00

ctrader-openapi

docs: create/update README.md for all 17 crates

2026-03-01 22:47:39 +01:00

data

fix(ml): streaming parallel OFI + fix hardcoded state_dim=54 in backtest

2026-03-07 23:28:18 +01:00

database

docs: create/update README.md for all 17 crates

2026-03-01 22:47:39 +01:00

market-data

docs: create/update README.md for all 17 crates

2026-03-01 22:47:39 +01:00

ml

perf(ml): eliminate CPU tensor ops from GPU training hot path

2026-03-08 23:12:54 +01:00

ml-asset-selection

refactor(ml): extract universe, backtesting, asset-selection into sub-crates

2026-03-08 15:17:22 +01:00

ml-backtesting

refactor(ml): extract universe, backtesting, asset-selection into sub-crates

2026-03-08 15:17:22 +01:00

ml-checkpoint

refactor(ml): remove dead code across 8 sub-crates — delete 742 lines

2026-03-08 15:17:22 +01:00

ml-core

perf(ml): eliminate CPU tensor ops from GPU training hot path

2026-03-08 23:12:54 +01:00

ml-data

docs: create/update README.md for all 17 crates

2026-03-01 22:47:39 +01:00

ml-data-validation

refactor(ml): split monolith into 9 sub-crates + delete dead code

2026-03-08 15:17:22 +01:00

ml-dqn

perf(ml): replace remaining CPU tensor allocations with GPU-native ops

2026-03-08 23:22:39 +01:00

ml-ensemble

fix(dqn): IQN GPU PER weights, staged GPU buffer, CUDA default in all ML crates

2026-03-08 22:31:49 +01:00

ml-explainability

fix(dqn): IQN GPU PER weights, staged GPU buffer, CUDA default in all ML crates

2026-03-08 22:31:49 +01:00

ml-features

fix: resolve rebase artifacts — import paths and MLError variant

2026-03-08 15:21:46 +01:00

ml-hyperopt

fix(dqn): IQN GPU PER weights, staged GPU buffer, CUDA default in all ML crates

2026-03-08 22:31:49 +01:00

ml-labeling

fix(dqn): IQN GPU PER weights, staged GPU buffer, CUDA default in all ML crates

2026-03-08 22:31:49 +01:00

ml-observability

refactor(ml): remove dead code across 8 sub-crates — delete 742 lines

2026-03-08 15:17:22 +01:00

ml-paper-trading

refactor(ml): extract regime-detection, explainability, paper-trading

2026-03-08 15:17:22 +01:00

ml-ppo

perf(ml): replace remaining CPU tensor allocations with GPU-native ops

2026-03-08 23:22:39 +01:00

ml-regime

refactor(ml): split monolith into 9 sub-crates + delete dead code

2026-03-08 15:17:22 +01:00

ml-regime-detection

refactor(ml): extract regime-detection, explainability, paper-trading

2026-03-08 15:17:22 +01:00

ml-risk

refactor(ml): split monolith into 9 sub-crates + delete dead code

2026-03-08 15:17:22 +01:00

ml-security

refactor(ml): extract observability, stress-testing, security into sub-crates

2026-03-08 15:17:22 +01:00

ml-stress-testing

refactor(ml): extract observability, stress-testing, security into sub-crates

2026-03-08 15:17:22 +01:00

ml-supervised

fix(dqn): IQN GPU PER weights, staged GPU buffer, CUDA default in all ML crates

2026-03-08 22:31:49 +01:00

ml-universe

refactor(ml): remove dead code across 8 sub-crates — delete 742 lines

2026-03-08 15:17:22 +01:00

ml-validation

refactor(ml): split monolith into 9 sub-crates + delete dead code

2026-03-08 15:17:22 +01:00

model_loader

docs: create/update README.md for all 17 crates

2026-03-01 22:47:39 +01:00

risk

refactor: remove trading_engine dep from ml and risk crates

2026-03-05 23:19:38 +01:00

risk-data

docs: create/update README.md for all 17 crates

2026-03-01 22:47:39 +01:00

storage

docs: create/update README.md for all 17 crates

2026-03-01 22:47:39 +01:00

trading_engine

refactor: replace all api_gateway/web-gateway references across codebase

2026-03-05 00:18:58 +01:00

trading-data

docs: create/update README.md for all 17 crates

2026-03-01 22:47:39 +01:00

training_uploader

feat: implement all 15 fxt CLI commands with real gRPC calls

2026-03-03 22:16:35 +01:00