Add paddle.distributed dir and docs #2482
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…to add_distributed_dir_and_doc
TCChenlong
reviewed
Aug 31, 2020
doc/fluid/api/distributed.rst
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| .. toctree:: | ||
| :maxdepth: 1 | ||
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| distributed/get_rank |
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get_rank.rst
get_world_size.rst
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| 参数 | ||
| ::::::::: | ||
| - func (func) - 由 ``spawn`` 方法启动的进程所调用的目标函数。该目标函数需要能够被 ``pickled`` (序列化)，所以目标函数必须定义为模块的一级函数，不能是内部子函数或者类方法。 |
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func(function)。少翻译了一句"This function should be called as..."
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done, thx, 这里应该移除英文的，英文的属于迭代过程中的旧版，已在英文PR中移除
| - func (func) - 由 ``spawn`` 方法启动的进程所调用的目标函数。该目标函数需要能够被 ``pickled`` (序列化)，所以目标函数必须定义为模块的一级函数，不能是内部子函数或者类方法。 | ||
| - args (tuple, 可选) - 传入目标函数 ``func`` 的参数。 | ||
| - nprocs (int, 可选) - 启动进程的数目。默认值为-1。当 ``nproc`` 为-1时，模型执行时将会从环境变量中获取当前可用的所有设备进行使用：如果使用GPU执行任务，将会从环境变量 ``CUDA_VISIBLE_DEVICES`` 中获取当前所有可用的设备ID；如果使用CPU执行任务，将会从环境变量 ``CPU_NUM`` 中获取当前可用的CPU设备数，例如，可以通过指令 ``export CPU_NUM=4`` 配置默认可用CPU设备数，如果此环境变量没有设置，将会默认设置该环境变量的值为1。 | ||
| - join (bool, 可选) - 对所有启动的进程执行阻塞的 ``join`` ，等待进程执行结束。 |
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| 初始化动态图模式下的并行训练环境。 | ||
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| .. note:: |
| **代码示例** | ||
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| .. code-block:: python | ||
…lePaddle/FluidDoc into add_distributed_dir_and_doc
TCChenlong
reviewed
Aug 31, 2020
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| get_world_size | ||
| ---------------- | ||
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少了函数声明：
.. py:function:: paddle.distributed. get_world_size()
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| init_parallel_env | ||
| ----------------- | ||
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| spawn | ||
| ----- | ||
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Add paddle.distributed dir and docs
Related PR: PaddlePaddle/Paddle#26044, PaddlePaddle/Paddle#26773