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test(cudf-polars): report upstream CPU fallback diagnostics - #24215

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vyasr:codex/cudf-polars-coverage-tooling

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@vyasr vyasr commented Sep 17, 2026 •

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Description

Adds an offline diagnostic workflow for the checked-out upstream Polars suite. It records per-test CPU-fallback telemetry for the injected in-memory and small-blocksize SPMD engines, then writes JSON and HTML summaries.

This PR does not compare or classify local cudf-polars tests, select strict-GPU tests, or make pruning decisions.

Checklist

  • I am familiar with the Contributing Guidelines.
  • New or existing tests cover these changes.
  • The documentation is up to date with these changes.

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@vyasr
vyasr force-pushed the codex/cudf-polars-coverage-tooling branch from cb062e3 to d52dc47 Compare September 21, 2026 23:46
@github-actions github-actions Bot added Python Affects Python cuDF API. cudf-polars Issues specific to cudf-polars labels Sep 21, 2026
@vyasr vyasr changed the title test(cudf-polars): add coverage comparison tooling test(cudf-polars): report upstream CPU fallback diagnostics Sep 21, 2026
@vyasr vyasr added improvement Improvement / enhancement to an existing function non-breaking Non-breaking change labels Sep 22, 2026
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cudf-polars Issues specific to cudf-polars improvement Improvement / enhancement to an existing function non-breaking Non-breaking change Python Affects Python cuDF API.

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