jgrusewski ca4c38d921 fix(tests): CI GPU test stability, walltime reduction, BF16 tolerance ...

- Reduce CI GPU test datasets 16x for walltime reduction
- Reduce early-stop epochs 50→10, add --test-threads=1
- Serialize all GPU lib tests to prevent cuBLAS init race
- Align state_dim to 16 for BF16 tensor core HMMA dispatch
- BF16 precision tolerance in ml-dqn tests
- Enable branching DQN + tracing subscriber in smoke tests
- Prevent min_replay_size > buffer_size deadlock in early-stop tests
- Prevent AutoReplaySizer from breaking gradient collapse warmup
- Replace racy tokio::spawn checkpoint counter with AtomicUsize
- Set warmup_steps=0 and max_training_steps_per_epoch=300 in early-stop tests
- RealDataLoader respects TEST_DATA_DIR for CI PVC layout
- Add collapse_warmup_capacity to gpu_smoketest DQNConfig
- Drain CUDA context between test binaries
- Detached HEAD checkout prevents local branch corruption
- GPU pipeline tests: fix BF16 dtype and rank-1 squeeze assertions
- OOD input handling tests use use_gpu: true

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

2026-03-15 12:00:13 +01:00

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