[Core] "ValueError" For "num_cpus" worker option == 1.5

[SebastianMorawiec]

What happened + What you expected to happen

What happens:
When using num_cpus option = 1.5 for worker, Ray throws out "ValueError: Resource quantities >1 must be whole numbers."

What is expected to be happen:
Either accept fractions, or document. Current documentation states that fractions are accepted without limitations stated

Versions / Dependencies

ray 2.4, MACOS M1 (although, I'm quite sure it does not matter)

Reproduction script

import ray


@ray.remote(num_cpus=1.5)
def task():
    return 5


if __name__ == "__main__":
    result = ray.get(task.remote())
    print(result)

Issue Severity

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

[Tanmoy037]

I want to try this, please assign this to me.

[andreichalapco]

Hello so I suppose this is just changing the documentation. We need to mention in the documentation that the fractional input should be between 0 and 1.