[Core][Autoscaler] Default Ray Actor resource requirements

ray-project / ray

Ray is a unified framework for scaling AI and Python applications. Ray consists of a core distributed runtime and a set of AI Libraries for accelerating ML workloads.

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[Core][Autoscaler] Default Ray Actor resource requirements #26849

Open DmitriGekhtman opened 2 years ago

DmitriGekhtman commented 2 years ago

Description

The default resource usage and scheduling cost of a Ray Actor created with an unmodified @ray.remote is not clearly documented.

Document the behavior clearly and explain the implications for scheduling and autoscaling.
I have heard that the behavior is unintuitive or buggy -- fix it if so.

Link

https://docs.ray.io/en/latest/ray-core/actors.html https://docs.ray.io/en/latest/ray-core/tasks/resources.html#resource-requirements

DmitriGekhtman commented 2 years ago

cc @yiranwang52