0-3-3-understand-synchronizes-with-absence

name	0.3.3-understand-synchronizes_with_absence
description	[0.3.3] A relaxed atomic operation does not synchronize with any other operation; it establishes no happens-before or

understand-synchronizes_with_absence

CALL NUMBER: deep_c11_memory_model.synchronizes_with_absence : concurrency_synchronization_primitives_and_memor(2) DEFINITION: A relaxed atomic operation does not synchronize with any other operation; it establishes no happens-before or synchronizes-with relationship with any thread, including the thread that performed the operation.

Invoke this skill to understand synchronizes_with_absence down to its primitives. The RELATIVE ROOT below is the least-fixed-point closure of everything it bundles from — the full import cone, grouped by the lib each prim comes from. Projected from a prover-typed KB (MAP/SWI-Prolog consistency gate): every reference below resolves.

THE RELATIVE ROOT (the import cone, by lib)

from concurrency_synchronization_primitives_and_memor

• happens_before_relation (d1): A fundamental ordering relation in memory models defining that if operation A happens-before operation B, then A's effects are visible to B; forms the basis for reasoning about program correctness in concurrent settings.
• synchronizes_with (d1): A relation between atomic operations in memory models where a release fence on one thread synchronizes with an acquire fence on another thread, establishing happens-before order across threads.

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Projected from the concurrency synchronization primitives and memory models KB (155 concepts / 137 relations) — consistency-typed by MAP; the facet list after the colon IS the cross-lib dependency web.

(leaf — this is an actual skill.)