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jgrusewski 472dffd0f3 fix(cuda): shmem tile overflow + cudarc event tracking → 2 CUDA errors

Root cause 1 — CUDA_ERROR_ILLEGAL_ADDRESS:
shmem_max_in_dim only included trunk dims (state_dim, shared_h1,
shared_h2) but not head dims (value_h, adv_h). BF16 weight tile
for branch output overflowed shared memory on RTX 3050 (48KB).

Root cause 2 — CUDA_ERROR_INVALID_VALUE on EMA kernel:
cudarc 0.17's automatic event tracking records read/write events on
CudaSlice buffers. During CUDA Graph capture (events disabled) then
replay (events re-enabled), stale write events from CudaSlice Drops
poison the context error_state. Next bind_to_thread() propagates it.
Fix: disable_event_tracking() at GpuDqnTrainer construction —
single-owner forked stream, all sync points are explicit.

Also:
- Remove all #[ignore] from smoke tests, use real ES.FUT .dbn data
- Validate DBN schema at file level (skip non-OHLCV)
- Organize test_data/ into per-symbol subdirectories
- Fix pre-existing gpu_kernel_parity_test + evaluate_baseline errors

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

2026-03-17 09:18:49 +01:00

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