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GT4Py development

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Up and running

Getting started: Run

uv sync --extra cartesian --group dace-cartesian

This installs a development environment (containing things like tests and pre-commit hooks) with the cartesian version of DaCe. Add --extra cuda12 at the end for GPU support.

Notes & quirks

  • GT4Py cartesian and next live in the same repository. Both share the eve framework, _core definitions, and the test system.
  • GT4Py cartesian uses a DaCe version based on v1/maintenance. Install the extra dace-cartesian to work with that version (see above).
  • GT4Py next uses a DaCe version based on the main branch. This version is kept in the extra dace-next.
  • To run cartesian tests that require DaCe (e.g. for bridge work):
nox -s "test_cartesian-3.10(dace,cpu)"`
  • Running tests with nox will use the local gt4py code, but install a clean environment.
  • Commenting cscs-ci run allows to re-run CSCS-CI on PRs.
  • To update the DaCe branch in the uv.lock file:
uv sync -P dace --extra cartesian --group dace-cartesian --extra cuda12

Community

  • Monthly community meeting (shared between cartesian and next)
  • Developers share a Slack channel