oa::core::env_flag::NumericMode

Process-wide numerical execution policy. Core owns the vocabulary and its environment mapping; the runtime engine consumes it through EngineConfig. ModeEffect Fastvendor math, non-deterministic reductions StableFP32 accumulators, CoopMat disabled Deterministicfixed reduction order, no race-dependent atomics Port provenance: oa::NumericMode in oa/core/envFlag.h.