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[RLlib] Tune trial + checkpoint selection example. #14209

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sven1977
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@sven1977 sven1977 commented Feb 19, 2021

This PR adds an example script on how to select Tune trials and checkpoints by different custom criteria.

Why are these changes needed?

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  • I've run scripts/format.sh to lint the changes in this PR.
  • I've included any doc changes needed for https://docs.ray.io/en/master/.
  • I've made sure the tests are passing. Note that there might be a few flaky tests, see the recent failures at https://flakey-tests.ray.io/
  • Testing Strategy
    • Unit tests
    • Release tests
    • This PR is not tested :(

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@krfricke krfricke left a comment

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Looks great, but the test is failing due to resource constraints:

ray.tune.error.TuneError: Insufficient cluster resources to launch trial: trial requested 3 CPUs, 0 GPUs, but the cluster has only 2 CPUs, 0 GPUs, 3.71 GiB heap, 1.27 GiB objects (1.0 node:10.30.1.54). 

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@krfricke, thanks, this should be fixed now.

@sven1977 sven1977 merged commit 3d20d58 into ray-project:master Feb 22, 2021
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2 participants