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https://github.com/vale981/ray
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c8f207f746
This PR makes a number of major overhauls to the Ray core docs:
Add a key-concepts section for {Tasks, Actors, Objects, Placement Groups, Env Deps}.
Re-org the user guide to align with key concepts.
Rewrite the walkthrough to link to mini-walkthroughs in the key concept sections.
Minor tweaks and additional transition material.
36 lines
816 B
Python
36 lines
816 B
Python
import ray
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import time
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# A regular Python function.
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def normal_function():
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return 1
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# By adding the `@ray.remote` decorator, a regular Python function
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# becomes a Ray remote function.
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@ray.remote
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def my_function():
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return 1
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# To invoke this remote function, use the `remote` method.
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# This will immediately return an object ref (a future) and then create
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# a task that will be executed on a worker process.
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obj_ref = my_function.remote()
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# The result can be retrieved with ``ray.get``.
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assert ray.get(obj_ref) == 1
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@ray.remote
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def slow_function():
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time.sleep(10)
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return 1
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# Invocations of Ray remote functions happen in parallel.
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# All computation is performed in the background, driven by Ray's internal event loop.
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for _ in range(4):
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# This doesn't block.
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slow_function.remote()
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