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[DataLoader2] Handle MapDataPipe by converting to IterDataPipe internally by default #1146

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@NivekT NivekT commented May 1, 2023

Stack from ghstack:

Fixes #1143

I believe since DataLoader2 would always call iter(map_data_pipe) at some point anyway, it should make no different to perform the conversion with to_iter_datapipe() within __init__.

This will also allow prefetchers to be attached to the DataPipe.

Please let me know if this may be BC-breaking.

Differential Revision: D45452068

NivekT added a commit that referenced this pull request May 1, 2023
…ally by default

ghstack-source-id: f863da459d222e2340ad9df47ef7f1afc015f839
Pull Request resolved: #1146
@facebook-github-bot facebook-github-bot added the CLA Signed This label is managed by the Facebook bot. Authors need to sign the CLA before a PR can be reviewed. label May 1, 2023
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NivekT commented May 1, 2023

@ejguan Let me know what you think of this.

@NivekT NivekT requested a review from ejguan May 1, 2023 18:30
@NivekT NivekT changed the title [DataLoader2] Handle MapDataPipe by converting to IterDataPipe internally by default [DataLoader2] Handle MapDataPipe by converting to IterDataPipe internally by default May 1, 2023
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LGTM! Thanks

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NivekT commented May 1, 2023

@NivekT has imported this pull request. If you are a Meta employee, you can view this diff on Phabricator.

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@NivekT merged this pull request in 85d54a5.

@facebook-github-bot facebook-github-bot deleted the gh/NivekT/123/head branch May 5, 2023 14:22
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3 participants