[R] Fix CRAN test notes. (#8428)

- Limit the number of used CPU cores in examples.
- Add a note for the constraint.
- Bring back the cleanup script.
This commit is contained in:
Jiaming Yuan
2022-11-09 02:03:30 +08:00
committed by GitHub
parent 8e76f5f595
commit 0b36f8fba1
22 changed files with 81 additions and 49 deletions

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@@ -564,7 +564,7 @@ Here are some pratices on reducing memory usage with dask and xgboost.
nice summary.
- When using GPU input, like dataframe loaded by ``dask_cudf``, you can try
:py:class:`xgboost.dask.DaskDeviceQuantileDMatrix` as a drop in replacement for ``DaskDMatrix``
:py:class:`xgboost.dask.DaskQuantileDMatrix` as a drop in replacement for ``DaskDMatrix``
to reduce overall memory usage. See
:ref:`sphx_glr_python_dask-examples_gpu_training.py` for an example.