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…erence NaN Move aclrtSynchronizeStream from individual ops (nll_loss, all) into the EXEC_ASCEND_CMD macro. This ensures every ACL op completes before returning, eliminating async race conditions that caused NaN values and stale reads. Fixes Qwen3 end-to-end inference failure where softmax input contained NaN due to incomplete prior ops.
- FLAGOS_DEFINE_DISPATCH -> ADD_IMPL_TO_DISPATCHER - FLAGOS_DECLARE_DISPATCH -> DECLARE_DISPATCHER - FLAGOS_REGISTER_DISPATCH -> REGISTER_IMPL_TO_DISPATCHER - xxx_stub -> xxx_dispatcher - dispatch_stub.h -> dispatcher.h - FlagosDispatchStub -> FlagosDispatcher
Both types are already inside namespace at::native::flagos, so the prefix is redundant.
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