[core] calling remote function on ray.get_actor yields RuntimeError: Lost reference to actor

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Ray is an AI compute engine. Ray consists of a core distributed runtime and a set of AI Libraries for accelerating ML workloads.

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[core] calling remote function on ray.get_actor yields RuntimeError: Lost reference to actor #33020

Open scv119 opened 1 year ago

scv119 commented 1 year ago

What happened + What you expected to happen

 ray.get_actor(reducer_name).allreduce.remote(tensor, sequence)

throws exception RuntimeError: Lost reference to actor but

actor = ray.get_actor(reducer_name)
actor.allreduce.remote(tensor, sequence)

works

Versions / Dependencies

master

Reproduction script

N/A

Issue Severity

Medium: It is a significant difficulty but I can work around it.

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auderson commented 12 months ago

reproduced on ray 2.7 and 2.8: