work_stealing_queue.md

work stealing queue

Language: Python · Sphere: programming · Category: Performance

Signature: (task_id: int) → str

What it does

Work-Stealing Queue Implementation

A thread-safe work-stealing queue system where workers can steal tasks from other workers when their local queues are empty.

Guarantee

When it runs, work stealing queue guarantees w.steal() == 3; w.get_local_task() == 2 and w.get_local_task() is None; sum(per_worker) == 200 (proven by run).

Checkable constraints:

• w.get_local_task() == 1
• w.steal() == 3
• w.get_local_task() == 2 and w.get_local_task() is None
• w.steal() is None
• time.time() < deadline
• sum(per_worker) == 200
• wsq.get_completed_count() == 200
• stolen_share > 0

Verification evidence

• Green-run: ✓ passes (re-run under the extractor's gate)
• Constraint strength: recovery (truth-pinned)
• Independent oracle: — none yet (green-run candidate; not an axiom under the frozen ruler)
• Peer review: unreviewed

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