Code RoomNon-deterministic multi-worker training
MediumPrep Room Coding #4220

Non-deterministic multi-worker training

Vibe & agenticAlgorithms & data structuresMid–Senior~17 min

An AI claimed this PyTorch setup makes training 'fully reproducible,' but two runs give different validation scores. Identify what's missing.

Implement
missing_determinism_settings(config_lines: list[str]) → list[str]
Examples
in[["python_seed=42","numpy_seed=42","torch_seed=42","torch_cuda_seed=42","dataloader_generator=g","worker_init_fn=seed_worker","cudnn_deterministic=true"]]out[]
in[["torch_seed=42"]]out["cudnn_deterministic","dataloader_generator","numpy_seed","python_seed","torch_cuda_seed","worker_init_fn"]
What a strong answer looks like

Treat the AI’s output as a draft to verify, not an answer to trust. Name the specific flaw and the input that triggers it, say how you’d catch it (tests, edge cases, reading critically), and how you’d re-prompt or decompose to get it right.

0:00 of about 17 min

Vibe & agentic: describe the solution in plain language (or narrate it) and the coach grades your approach.

Which questions mattered is sealed until you submit. Telling you now would just be handing over the edge cases.