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prefer wheel-provided libcuspatial.so in load_library(), use RTLD_LOCAL #1483

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merged 5 commits into from
Nov 14, 2024

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@jameslamb jameslamb commented Nov 13, 2024

Description

Contributes to rapidsai/build-planning#118

Modifies libcuspatial.load_library() in the following ways:

  • prefer wheel-provided libcuspatial.so to system installation
  • expose environment variable RAPIDS_LIBCUSPATIAL_PREFER_SYSTEM_LIBRARY for switching that preference
  • load libcuspatial.so with RTLD_LOCAL, to prevent adding symbols to the global namespace (dlopen docs)

Notes for Reviewers

How I tested this

See "How I tested this" in rapidsai/cudf#17316

Also opened this PR originally pulling in built packages from rapidsai/cudf#17316

Checklist

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

@jameslamb jameslamb added 5 - DO NOT MERGE Hold off on merging; see PR for details improvement Improvement / enhancement to an existing function breaking Breaking change labels Nov 13, 2024
@github-actions github-actions bot added the Python Related to Python code label Nov 13, 2024
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The general logic looks right. Rewrote the explanatory comment to hopefully clarify what we're doing, and left one comment on resolution order.

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@jameslamb jameslamb requested a review from vyasr November 14, 2024 00:33
@jameslamb jameslamb changed the title WIP: [DO NOT MERGE] prefer wheel-provided libcudf.so in load_library(), use RTLD_LOCAL prefer wheel-provided libcudf.so in load_library(), use RTLD_LOCAL Nov 14, 2024
@jameslamb jameslamb removed the 5 - DO NOT MERGE Hold off on merging; see PR for details label Nov 14, 2024
@jameslamb jameslamb marked this pull request as ready for review November 14, 2024 21:06
@jameslamb jameslamb requested a review from a team as a code owner November 14, 2024 21:06
@jameslamb jameslamb changed the title prefer wheel-provided libcudf.so in load_library(), use RTLD_LOCAL prefer wheel-provided libcuspatial.so in load_library(), use RTLD_LOCAL Nov 14, 2024
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vyasr commented Nov 14, 2024

/merge

@rapids-bot rapids-bot bot merged commit 20abaaa into rapidsai:branch-24.12 Nov 14, 2024
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@jameslamb jameslamb deleted the library-loading branch November 14, 2024 22:04
rapids-bot bot pushed a commit to rapidsai/kvikio that referenced this pull request Nov 14, 2024
Contributes to rapidsai/build-planning#118

Modifies `libkvikio.load_library()` in the following ways:

* prefer wheel-provided `libkvikio.so` to system installation
* expose environment variable `RAPIDS_LIBKVIKIO_PREFER_SYSTEM_LIBRARY` for switching that preference
* load `libkvikio.so` with `RTLD_LOCAL`, to prevent adding symbols to the global namespace ([dlopen docs](https://linux.die.net/man/3/dlopen))

## Notes for Reviewers

### How I tested this

Tested the general approach on rapidsai/cudf#17316 and rapidsai/cuspatial#1483.

Authors:
  - James Lamb (https://github.com/jameslamb)

Approvers:
  - Vyas Ramasubramani (https://github.com/vyasr)

URL: #551
rapids-bot bot pushed a commit that referenced this pull request Nov 15, 2024
Contributes to rapidsai/build-planning#118

The pattern introduced in #1483 breaks editable installs in devcontainers. In that type of build, `libcuspatial.so` is built outside of the wheel but **not installed**, so it can't be found by `ld`. Extension modules in `cuspatial` are able to find it via RPATHs instead.

This proposes:

* try-catching the entire library-loading attempt, to silently do nothing in cases like that
* ~adding an import of the `cuspatial` Python library in the `devcontainers` CI job, as a smoke test to catch issues like this in the future~ *(edit: removed those, [`devcontainer` builds run on CPU nodes](https://github.com/rapidsai/shared-workflows/blob/4e84062f333ce5649bc65029d3979569e2d0a045/.github/workflows/build-in-devcontainer.yaml#L19))*

## Notes for Reviewers

### How I tested this

Tested this approach on rapidsai/kvikio#553

#

Authors:
  - James Lamb (https://github.com/jameslamb)

Approvers:
  - Bradley Dice (https://github.com/bdice)

URL: #1484
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