jgrusewski ad5c2b7ded refactor: exp collector zero-copy — direct pointer into trainer params_buf ...

Dead code sweep (167 lines deleted):
- online_params_flat (synced but never read by forward)
- online_params_f32 (never synced, always zeros — ROOT CAUSE of garbage Q-values)
- DuelingWeightSet/BranchingWeightSet/CuriosityWeightSet/RmsNormWeightSet fields
- sync_weights_flat, sync_weights_f32, flatten_online_weights methods
- sync_gpu_weights epoch-boundary DtoD copy

Zero-copy replacement:
- trainer_params_ptr: u64 points directly into trainer's params_buf
- param_sizes computed from real config (bottleneck_dim=16, market_dim=42)
- CublasForward with correct s1_input_dim=54 for bottleneck
- Bottleneck forward activated (bn_hidden + tanh + concat)
- Fused context init moved before Phase 2 (experience collection)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

2026-04-11 23:10:25 +02:00

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2026-03-10-zero-cpu-hotpath.md

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2026-03-11-dqn-factored-actions.md

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2026-03-13-gpu-test-workflow.md

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2026-03-14-kanidm-netbird-sso.md

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2026-03-15-fused-cuda-training.md

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2026-03-16-gpu-iql-her-porting.md

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2026-03-17-candle-hard-refactor.md

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2026-03-17-cuda-candle-elimination.md

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2026-03-18-full-gpu-forward-passes.md

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2026-03-18-gpu-dedup-consolidation.md

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2026-03-18-gpu-resident-pipeline.md

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2026-03-21-h100-epoch-optimization-phase1.md

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2026-03-21-h100-epoch-optimization-phase2.md

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2026-03-21-h100-epoch-optimization-phase3.md

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2026-03-21-h100-epoch-optimization-phase4.md

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2026-03-21-training-profiles.md

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2026-03-22-gpu-composite-reward.md

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2026-03-22-gpu-segment-tree.md

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2026-03-23-9-exposure-dual-distributional.md

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2026-03-23-stable-distributional-loss.md

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2026-03-24-c51-loss-convergence.md

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2026-03-24-financial-metrics-pipeline.md

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2026-03-24-master-trading-agent.md

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2026-03-24-remaining-gpu-features.md

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2026-03-25-boundary-trade-counting.md

fix: backtest evaluator — correct annualization, window sizing, objective calibration

2026-03-25 19:43:26 +01:00

2026-03-25-config-unification.md

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2026-03-25-eliminate-nvrtc.md

docs: plan to eliminate NVRTC — precompile all 25 CUDA kernels at build time

2026-03-25 23:58:30 +01:00

2026-03-25-reward-v6-fixes.md

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2026-03-25-trade-lifecycle-fix.md

docs: trade lifecycle fix plan — address review feedback

2026-03-25 23:02:39 +01:00

2026-03-26-eval-cleanup.md

docs: eval cleanup spec + plan — remove dead 5-action path, fix train/eval mismatch

2026-03-26 00:43:58 +01:00

2026-03-26-final-fixes-before-h100.md

docs: final fixes plan — 6 issues blocking H100 deployment

2026-03-26 01:06:28 +01:00

2026-03-27-bf16-native-completion.md

docs: BF16 native completion plan — zero casts, zero nvrtc, zero GpuTensor

2026-03-27 23:39:43 +01:00

2026-03-27-bug-fixes.md

feat: gradient stability + 9-agent audit bug fixes

2026-03-27 19:52:44 +01:00

2026-03-27-full-bf16-rewrite.md

docs: full BF16 rewrite spec + plan — zero F32 on GPU

2026-03-27 20:42:37 +01:00

2026-03-27-gpu-hot-path-performance.md

feat: gradient stability + 9-agent audit bug fixes

2026-03-27 19:52:44 +01:00

2026-03-27-gradient-stability.md

feat: gradient stability + 9-agent audit bug fixes

2026-03-27 19:52:44 +01:00

2026-03-27-hive-findings-fixes.md

fix: hive findings — capital floor, dueling centering, metrics, CVaR objective

2026-03-27 07:56:50 +01:00

2026-03-27-trade-physics-refactor.md

fix: shared trade physics, IQN arg swap, trailing stop, win_rate

2026-03-27 00:47:34 +01:00

2026-03-27-training-kernel-unification.md

refactor: training kernel fully unified with trade_physics.cuh

2026-03-27 08:16:51 +01:00

2026-03-29-drawdown-aware-training.md

feat(training): continuous drawdown penalty — smooth ramp from dd_threshold to floor

2026-03-29 20:23:51 +02:00

2026-03-29-generalization-gap.md

docs: generalization gap action plan (domain randomization + CQL + multi-fold)

2026-03-29 23:24:10 +02:00

2026-03-29-novel-generalization.md

docs: 8 novel generalization techniques plan (domain rand + CQL + adversarial + curiosity Q-penalty + counterfactual + regime-adversarial + feature filtering)

2026-03-29 23:32:12 +02:00

2026-03-30-dqn-gems-implementation.md

feat: wire OFI features through TOML profile + CUDA kernel guard tests

2026-03-31 01:35:04 +02:00

2026-03-30-gems-and-pearls-generalization.md

feat(generalization): complete all 34 tasks — 7 final CUDA kernels

2026-03-30 12:38:33 +02:00

2026-03-31-databento-download-workflow.md

refactor: remove entire CPU training path — 5,307 lines of dead code

2026-04-02 09:06:23 +02:00

2026-03-31-feature-precompute-pipeline.md

docs: feature precompute pipeline implementation plan

2026-03-31 23:35:47 +02:00

2026-03-31-imbalance-bars-and-cleanup.md

cleanup: remove ALL 32 enable_* feature flags — all features unconditional

2026-03-31 10:56:20 +02:00

2026-04-01-h100-gpu-optimization.md

docs: H100 GPU optimization implementation plan — 10 tasks

2026-04-01 21:41:21 +02:00

2026-04-02-autobatchsizer-vram-budget.md

fix: restore batch_size to GPU profiles — profile defaults, not auto-scaling

2026-04-02 21:26:24 +02:00

2026-04-02-mega-graph-sub10s-epochs.md

refactor: remove entire CPU training path — 5,307 lines of dead code

2026-04-02 09:06:23 +02:00

2026-04-02-mega-graph-training-loop-refactor.md

perf: graph_aux CUDA graph capture + fix 3 kernel ABI mismatches

2026-04-02 13:49:26 +02:00

2026-04-02-zero-copy-fxcache-pipeline.md

fix: restore cached_n_episodes field lost in merge + batch_size=128 for RTX 3050

2026-04-02 23:29:04 +02:00

2026-04-02-zero-copy-walk-forward.md

fix: restore cached_n_episodes field lost in merge + batch_size=128 for RTX 3050

2026-04-02 23:29:04 +02:00

2026-04-03-argo-fxcache-infrastructure-fix.md

feat: add symbol field to DQNHyperparameters + training profile

2026-04-04 08:56:44 +02:00

2026-04-03-feature-extraction-pipeline-fix.md

feat: add symbol field to DQNHyperparameters + training profile

2026-04-04 08:56:44 +02:00

2026-04-03-hyperopt-fxcache-migration.md

fix: vol_normalizer from raw targets + relax fxcache smoketest NaN check

2026-04-03 08:46:30 +02:00

2026-04-04-c51-loss-accumulator-fix.md

docs: spec + plan for C51 loss accumulator fix (separate MSE/C51 buffers)

2026-04-04 11:49:13 +02:00

2026-04-04-cuda-kernel-safety.md

docs: implementation plan for CUDA kernel safety fix

2026-04-04 11:12:47 +02:00

2026-04-04-feature-extraction-pipeline-fix.md

docs: implementation plan for feature extraction pipeline fix

2026-04-04 09:36:10 +02:00

2026-04-04-gpu-test-fixes.md

docs: implementation plan for GPU test fixes + OFI pipeline fix

2026-04-04 01:02:00 +02:00

2026-04-05-gpu-regime-and-training-hang-fix.md

docs: implementation plan for GPU regime + H100 hang fix

2026-04-05 21:45:51 +02:00

2026-04-06-h100-maximum-performance.md

docs: H100 maximum performance spec and implementation plan

2026-04-06 11:15:24 +02:00

2026-04-06-per-prefix-sum.md

fix: promote entire backtest pipeline from bf16 to f32

2026-04-07 13:58:11 +02:00

2026-04-06-per-tree-fix-and-zero-sync-readback.md

docs: H100 maximum performance spec and implementation plan

2026-04-06 11:15:24 +02:00

2026-04-07-reward-v7-gems-pearls.md

docs: reward v8 master plan — 18-item comprehensive training overhaul

2026-04-07 23:14:40 +02:00

2026-04-07-reward-v7.md

docs: reward v8 master plan — 18-item comprehensive training overhaul

2026-04-07 23:14:40 +02:00

2026-04-07-reward-v8-master.md

feat(v8): wire 5 dead CUDA kernels + config fixes

2026-04-08 01:26:09 +02:00

2026-04-07-reward-v71-fixes.md

docs: reward v8 master plan — 18-item comprehensive training overhaul

2026-04-07 23:14:40 +02:00

2026-04-08-advantage-standardization.md

fix(critical): disable mirror universe — only negates 4/42 features but inverts direction

2026-04-08 20:05:22 +02:00

2026-04-08-h100-epoch-optimization-v2.md

fix: update loss threshold for v8 batch_size=16384 + wire 5 kernels

2026-04-08 02:25:58 +02:00

2026-04-08-h100-graph-optimizations.md

fix: aux GEMM gradient explosion — scale 0.5→0.01 + clip after backward

2026-04-08 10:03:54 +02:00

2026-04-08-hierarchical-4branch.md

docs: Phase 2 hierarchical 4-branch implementation plan

2026-04-08 14:12:12 +02:00

2026-04-08-magnitude-branch-fix.md

fix(critical): disable mirror universe — only negates 4/42 features but inverts direction

2026-04-08 20:05:22 +02:00

2026-04-08-per-branch-loss-weighting.md

feat(magnitude): per-branch loss weighting — 0.2× C51 + 4.0× MSE for magnitude

2026-04-08 22:23:19 +02:00

2026-04-08-volume-bar-pipeline.md

docs: volume bar pipeline spec + implementation plan

2026-04-08 20:26:40 +02:00

2026-04-09-adv-logits-layout-fix.md

fix(critical): branch-major d_adv_logits layout + revert diagnostic hacks

2026-04-09 22:05:46 +02:00

2026-04-09-h100-nan-fix.md

fix: re-enable IQN + remove diagnostics for H100 baseline

2026-04-09 20:04:01 +02:00

2026-04-10-argo-pipeline-redesign.md

feat: unified Argo train workflow — replace 7 templates with 1

2026-04-10 20:36:03 +02:00

2026-04-10-bf16-elimination.md

refactor: eliminate ALL bf16 from entire workspace — pure f32/TF32 pipeline

2026-04-10 18:52:21 +02:00

2026-04-10-cublaslt-migration.md

fix: use CUBLAS_COMPUTE_32F for cublasLtMatmul (SM86 compat)

2026-04-10 10:33:36 +02:00

2026-04-10-dead-code-gpu-profiling.md

plan: dead code cleanup + GPU per-phase CUDA event profiling (6 tasks, 32 steps)

2026-04-10 22:23:16 +02:00

2026-04-11-abi-complete.md

plan: ABI Complete — per-branch epsilon, IQN anti-collapse, hindsight relabeling, vaccine, ensemble, bottleneck (8 tasks)

2026-04-11 12:27:56 +02:00

2026-04-11-abi-foundation.md

plan: ABI Foundation — 7-level exposure + PopArt + tau coupling + PER clear (6 tasks, 27 steps)

2026-04-11 11:28:59 +02:00

2026-04-11-action-diversity-iqn4branch.md

fix: IQN 4-branch runtime + order counterfactual + per-branch entropy + histogram

2026-04-11 22:40:47 +02:00

2026-04-11-exp-collector-zero-copy.md

refactor: exp collector zero-copy — direct pointer into trainer params_buf

2026-04-11 23:10:25 +02:00

2026-04-11-varstore-elimination.md

plan: VarStore elimination — zero-copy pointer views into flat params_buf (8 tasks)

2026-04-11 13:35:15 +02:00