Created by: THUHJ

当在使用deepspech2进行多机实验的时候，将trainer = paddle.trainer.SGD的参数修改为is_local=False,同时设置了pserver_spec。在运行的时候提示

Traceback (most recent call last):
  File "train.py", line 360, in <module>
    main()
  File "train.py", line 356, in main
    train()
  File "train.py", line 350, in train
    feeding=train_generator.feeding)
  File "/usr/local/lib/python2.7/dist-packages/paddle/v2/trainer.py", line 132, in train
    self.__pserver_spec__)
  File "/usr/local/lib/python2.7/dist-packages/paddle/v2/optimizer.py", line 79, in create_updater
    pserver_spec)
  File "/usr/local/lib/python2.7/dist-packages/paddle/v2/optimizer.py", line 52, in __create_new_remote_updater__
    self.__opt_conf__, pserver_spec)
  File "/usr/local/lib/python2.7/dist-packages/py_paddle/swig_paddle.py", line 2179, in createNewRemoteUpdater
    return _swig_paddle.ParameterUpdater_createNewRemoteUpdater(config, pserverSpec)
RuntimeError:  

RuntimeError之后没有别的内容了。请问这种现象可能是由于什么原因导致的呢？ 还是现在多机只能使用像v1的代码吗？似乎没有找到针对v2多机的文档。