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Merged
njzjz merged 1 commit into from
Dec 5, 2025
Merged

CI: stop running Horovod tests #5079

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2 changes: 0 additions & 2 deletions .github/workflows/test_python.yml
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Expand Up @@ -32,8 +32,6 @@ jobs:
export TENSORFLOW_ROOT=$(python -c 'import importlib.util,pathlib;print(pathlib.Path(importlib.util.find_spec("tensorflow").origin).parent)')
export PYTORCH_ROOT=$(python -c 'import torch;print(torch.__path__[0])')
source/install/uv_with_retry.sh pip install --system -e .[test,jax] mpi4py --group pin_jax
source/install/uv_with_retry.sh pip install --system -U setuptools
source/install/uv_with_retry.sh pip install --system horovod --no-build-isolation
source/install/uv_with_retry.sh pip install --system --pre "paddlepaddle==3.0.0" -i https://www.paddlepaddle.org.cn/packages/stable/cpu/
env:
# Please note that uv has some issues with finding
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6 changes: 6 additions & 0 deletions doc/install/install-from-source.md
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Expand Up @@ -273,6 +273,12 @@ It will print the help information like

### Install horovod and mpi4py {{ tensorflow_icon }}

:::{warning}
Horovod has not released a new version for a long time.
As of December 2025, the latest Horovod release does not support the latest TensorFlow versions.
You can check the patches required to support the latest TensorFlow at [conda-forge/horovod-feedstock](https://github.com/conda-forge/horovod-feedstock/blob/main/recipe/meta.yaml).
:::

[Horovod](https://github.com/horovod/horovod) and [mpi4py](https://github.com/mpi4py/mpi4py) are used for parallel training. For better performance on GPU, please follow the tuning steps in [Horovod on GPU](https://github.com/horovod/horovod/blob/master/docs/gpus.rst).

```bash
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